Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

290 files changed, 59399 insertions, 0 deletions

diff --git a/arch/alpha/Kbuild b/arch/alpha/Kbuild
new file mode 100644
index 000000000..345d79df2
--- /dev/null
+++ b/arch/alpha/Kbuild
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y			+= kernel/ mm/
+obj-$(CONFIG_MATHEMU)	+= math-emu/
+
+# for cleaning
+subdir- += boot
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
new file mode 100644
index 000000000..d95d82abd
--- /dev/null
+++ b/arch/alpha/Kconfig
@@ -0,0 +1,676 @@
+# SPDX-License-Identifier: GPL-2.0
+config ALPHA
+	bool
+	default y
+	select ARCH_32BIT_USTAT_F_TINODE
+	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_MIGHT_HAVE_PC_SERIO
+	select ARCH_NO_PREEMPT
+	select ARCH_NO_SG_CHAIN
+	select ARCH_USE_CMPXCHG_LOCKREF
+	select DMA_OPS if PCI
+	select FORCE_PCI if !ALPHA_JENSEN
+	select PCI_DOMAINS if PCI
+	select PCI_SYSCALL if PCI
+	select HAVE_ASM_MODVERSIONS
+	select HAVE_PCSPKR_PLATFORM
+	select HAVE_PERF_EVENTS
+	select NEED_DMA_MAP_STATE
+	select NEED_SG_DMA_LENGTH
+	select GENERIC_IRQ_PROBE
+	select GENERIC_PCI_IOMAP
+	select AUTO_IRQ_AFFINITY if SMP
+	select GENERIC_IRQ_SHOW
+	select ARCH_WANT_IPC_PARSE_VERSION
+	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select AUDIT_ARCH
+	select GENERIC_CPU_VULNERABILITIES
+	select GENERIC_SMP_IDLE_THREAD
+	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_MOD_ARCH_SPECIFIC
+	select LOCK_MM_AND_FIND_VMA
+	select MODULES_USE_ELF_RELA
+	select ODD_RT_SIGACTION
+	select OLD_SIGSUSPEND
+	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+	select MMU_GATHER_NO_RANGE
+	select SPARSEMEM_EXTREME if SPARSEMEM
+	select ZONE_DMA
+	help
+	  The Alpha is a 64-bit general-purpose processor designed and
+	  marketed by the Digital Equipment Corporation of blessed memory,
+	  now Hewlett-Packard.  The Alpha Linux project has a home page at
+	  <http://www.alphalinux.org/>.
+
+config 64BIT
+	def_bool y
+
+config MMU
+	bool
+	default y
+
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config GENERIC_ISA_DMA
+	bool
+	default y
+
+config PGTABLE_LEVELS
+	int
+	default 3
+
+config AUDIT_ARCH
+	bool
+
+menu "System setup"
+
+choice
+	prompt "Alpha system type"
+	default ALPHA_GENERIC
+	help
+	  This is the system type of your hardware.  A "generic" kernel will
+	  run on any supported Alpha system. However, if you configure a
+	  kernel for your specific system, it will be faster and smaller.
+
+	  To find out what type of Alpha system you have, you may want to
+	  check out the Linux/Alpha FAQ, accessible on the WWW from
+	  <http://www.alphalinux.org/>. In summary:
+
+	  Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
+	  Alpha-XL            XL-233, XL-266
+	  AlphaBook1          Alpha laptop
+	  Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
+	  Cabriolet           AlphaPC64, AlphaPCI64
+	  DP264               DP264 / DS20 / ES40 / DS10 / DS10L
+	  EB164               EB164 21164 evaluation board
+	  EB64+               EB64+ 21064 evaluation board
+	  EB66                EB66 21066 evaluation board
+	  EB66+               EB66+ 21066 evaluation board
+	  Jensen              DECpc 150, DEC 2000 models 300, 500
+	  LX164               AlphaPC164-LX
+	  Lynx                AS 2100A
+	  Miata               Personal Workstation 433/500/600 a/au
+	  Marvel              AlphaServer ES47 / ES80 / GS1280
+	  Mikasa              AS 1000
+	  Noname              AXPpci33, UDB (Multia)
+	  Noritake            AS 1000A, AS 600A, AS 800
+	  PC164               AlphaPC164
+	  Rawhide             AS 1200, AS 4000, AS 4100
+	  Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
+	  SX164               AlphaPC164-SX
+	  Sable               AS 2000, AS 2100
+	  Shark               DS 20L
+	  Takara              Takara (OEM)
+	  Titan               AlphaServer ES45 / DS25 / DS15
+	  Wildfire            AlphaServer GS 40/80/160/320
+
+	  If you don't know what to do, choose "generic".
+
+config ALPHA_GENERIC
+	bool "Generic"
+	depends on TTY
+	select HAVE_EISA
+	help
+	  A generic kernel will run on all supported Alpha hardware.
+
+config ALPHA_ALCOR
+	bool "Alcor/Alpha-XLT"
+	select HAVE_EISA
+	help
+	  For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
+	  slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
+	  Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
+	  controller (256-bit memory bus) and a PCI interface.  It also does
+	  all the work required to support an external Bcache and to maintain
+	  memory coherence when a PCI device DMAs into (or out of) memory.
+
+config ALPHA_XL
+	bool "Alpha-XL"
+	help
+	  XL-233 and XL-266-based Alpha systems.
+
+config ALPHA_BOOK1
+	bool "AlphaBook1"
+	help
+	  Dec AlphaBook1/Burns Alpha-based laptops.
+
+config ALPHA_AVANTI_CH
+	bool "Avanti"
+
+config ALPHA_CABRIOLET
+	bool "Cabriolet"
+	help
+	  Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
+	  baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
+	  slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
+	  Bcache SIMMs.  Requires power supply with 3.3V output.
+
+config ALPHA_DP264
+	bool "DP264"
+	help
+	  Various 21264 systems with the tsunami core logic chipset.
+	  API Networks: 264DP, UP2000(+), CS20;
+	  Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
+
+config ALPHA_EB164
+	bool "EB164"
+	help
+	  EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
+	  ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
+	  shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
+	  Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
+	  MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
+	  motherboard.  Requires power supply with 3.3V output.
+
+config ALPHA_EB64P_CH
+	bool "EB64+"
+
+config ALPHA_EB66
+	bool "EB66"
+	help
+	  A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
+	  identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
+	  supply.  The EB66 schematic was published as a marketing poster
+	  advertising the 21066 as "the first microprocessor in the world with
+	  embedded PCI".
+
+config ALPHA_EB66P
+	bool "EB66+"
+	help
+	  Later variant of the EB66 board.
+
+config ALPHA_EIGER
+	bool "Eiger"
+	help
+	  Apparently an obscure OEM single-board computer based on the
+	  Typhoon/Tsunami chipset family. Information on it is scanty.
+
+config ALPHA_JENSEN
+	bool "Jensen"
+	select HAVE_EISA
+	help
+	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
+	  of the first-generation Alpha systems. A number of these systems
+	  seem to be available on the second- hand market. The Jensen is a
+	  floor-standing tower system which originally used a 150MHz 21064 It
+	  used programmable logic to interface a 486 EISA I/O bridge to the
+	  CPU.
+
+config ALPHA_LX164
+	bool "LX164"
+	help
+	  A technical overview of this board is available at
+	  <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
+
+config ALPHA_LYNX
+	bool "Lynx"
+	select HAVE_EISA
+	help
+	  AlphaServer 2100A-based systems.
+
+config ALPHA_MARVEL
+	bool "Marvel"
+	help
+	  AlphaServer ES47 / ES80 / GS1280 based on EV7.
+
+config ALPHA_MIATA
+	bool "Miata"
+	select HAVE_EISA
+	help
+	  The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
+	  or 600au).
+
+config ALPHA_MIKASA
+	bool "Mikasa"
+	help
+	  AlphaServer 1000-based Alpha systems.
+
+config ALPHA_NAUTILUS
+	bool "Nautilus"
+	help
+	  Alpha systems based on the AMD 751 & ALI 1543C chipsets.
+
+config ALPHA_NONAME_CH
+	bool "Noname"
+
+config ALPHA_NORITAKE
+	bool "Noritake"
+	select HAVE_EISA
+	help
+	  AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
+	  systems.
+
+config ALPHA_PC164
+	bool "PC164"
+
+config ALPHA_P2K
+	bool "Platform2000"
+
+config ALPHA_RAWHIDE
+	bool "Rawhide"
+	select HAVE_EISA
+	help
+	  AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
+	  See HOWTO at
+	  <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
+
+config ALPHA_RUFFIAN
+	bool "Ruffian"
+	help
+	  Samsung APC164UX.  There is a page on known problems and workarounds
+	  at <http://www.alphalinux.org/faq/FAQ-11.html>.
+
+config ALPHA_RX164
+	bool "RX164"
+
+config ALPHA_SX164
+	bool "SX164"
+
+config ALPHA_SABLE
+	bool "Sable"
+	select HAVE_EISA
+	help
+	  Digital AlphaServer 2000 and 2100-based systems.
+
+config ALPHA_SHARK
+	bool "Shark"
+
+config ALPHA_TAKARA
+	bool "Takara"
+	help
+	  Alpha 11164-based OEM single-board computer.
+
+config ALPHA_TITAN
+	bool "Titan"
+	help
+	  AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
+
+config ALPHA_WILDFIRE
+	bool "Wildfire"
+	help
+	  AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
+
+endchoice
+
+# clear all implied options (don't want default values for those):
+# Most of these machines have ISA slots; not exactly sure which don't,
+# and this doesn't activate hordes of code, so do it always.
+config ISA
+	bool
+	default y
+	help
+	  Find out whether you have ISA slots on your motherboard.  ISA is the
+	  name of a bus system, i.e. the way the CPU talks to the other stuff
+	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
+	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
+	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
+
+config ISA_DMA_API
+	bool
+	default y
+
+config ALPHA_NONAME
+	bool
+	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
+	default y
+	help
+	  The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
+	  UDB).  This design was produced by Digital's Technical OEM (TOEM)
+	  group. It uses the 21066 processor running at 166MHz or 233MHz. It
+	  is a baby-AT size, and runs from a standard PC power supply. It has
+	  5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
+	  2 versions, with either PS/2 or large DIN connectors for the
+	  keyboard.
+
+config ALPHA_EV4
+	bool
+	depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
+	default y if !ALPHA_LYNX
+
+config ALPHA_LCA
+	bool
+	depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
+	default y
+
+config ALPHA_APECS
+	bool
+	depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
+	default y
+
+config ALPHA_EB64P
+	bool
+	depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
+	default y
+	help
+	  Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
+	  2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
+	  ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
+	  (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
+	  SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
+	  Runs from standard PC power supply.
+
+config ALPHA_EV5
+	bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
+	default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
+
+config ALPHA_EV4
+	bool
+	default y if ALPHA_LYNX && !ALPHA_EV5
+
+config ALPHA_CIA
+	bool
+	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
+	default y
+
+config ALPHA_EV56
+	bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
+	default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
+
+config ALPHA_EV56
+	prompt "EV56 CPU (speed >= 333MHz)?"
+	depends on ALPHA_NORITAKE || ALPHA_PRIMO
+
+config ALPHA_EV56
+	prompt "EV56 CPU (speed >= 400MHz)?"
+	depends on ALPHA_RAWHIDE
+
+config ALPHA_PRIMO
+	bool "EV5 CPU daughtercard (model 5/xxx)?"
+	depends on ALPHA_NORITAKE || ALPHA_MIKASA
+	help
+	  Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
+
+config ALPHA_GAMMA
+	bool "EV5 CPU(s) (model 5/xxx)?"
+	depends on ALPHA_SABLE
+	help
+	  Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
+
+config ALPHA_GAMMA
+	bool
+	depends on ALPHA_LYNX
+	default y
+
+config ALPHA_T2
+	bool
+	depends on ALPHA_SABLE || ALPHA_LYNX
+	default y
+
+config ALPHA_PYXIS
+	bool
+	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
+	default y
+
+config ALPHA_EV6
+	bool
+	depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
+	default y
+
+config ALPHA_TSUNAMI
+	bool
+	depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
+	default y
+
+config ALPHA_EV67
+	bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
+	default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  Is this a machine based on the EV67 core?  If in doubt, select N here
+	  and the machine will be treated as an EV6.
+
+config ALPHA_MCPCIA
+	bool
+	depends on ALPHA_RAWHIDE
+	default y
+
+config ALPHA_POLARIS
+	bool
+	depends on ALPHA_RX164
+	default y
+
+config ALPHA_IRONGATE
+	bool
+	depends on ALPHA_NAUTILUS
+	default y
+
+config GENERIC_HWEIGHT
+	bool
+	default y if !ALPHA_EV67
+
+config ALPHA_AVANTI
+	bool
+	depends on ALPHA_XL || ALPHA_AVANTI_CH
+	default y
+	help
+	  Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
+	  Alphas. Info at
+	  <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
+
+config ALPHA_BROKEN_IRQ_MASK
+	bool
+	depends on ALPHA_GENERIC || ALPHA_PC164
+	default y
+
+config VGA_HOSE
+	bool
+	depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
+	default y
+	help
+	  Support VGA on an arbitrary hose; needed for several platforms
+	  which always have multiple hoses, and whose consoles support it.
+
+
+config ALPHA_QEMU
+	bool "Run under QEMU emulation"
+	depends on !ALPHA_GENERIC
+	help
+	  Assume the presence of special features supported by QEMU PALcode
+	  that reduce the overhead of system emulation.
+
+	  Generic kernels will auto-detect QEMU.  But when building a
+	  system-specific kernel, the assumption is that we want to
+	  eliminate as many runtime tests as possible.
+
+	  If unsure, say N.
+
+
+config ALPHA_SRM
+	bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
+	depends on TTY
+	default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  There are two different types of booting firmware on Alphas: SRM,
+	  which is command line driven, and ARC, which uses menus and arrow
+	  keys. Details about the Linux/Alpha booting process are contained in
+	  the Linux/Alpha FAQ, accessible on the WWW from
+	  <http://www.alphalinux.org/>.
+
+	  The usual way to load Linux on an Alpha machine is to use MILO
+	  (a bootloader that lets you pass command line parameters to the
+	  kernel just like lilo does for the x86 architecture) which can be
+	  loaded either from ARC or can be installed directly as a permanent
+	  firmware replacement from floppy (which requires changing a certain
+	  jumper on the motherboard). If you want to do either of these, say N
+	  here. If MILO doesn't work on your system (true for Jensen
+	  motherboards), you can bypass it altogether and boot Linux directly
+	  from an SRM console; say Y here in order to do that. Note that you
+	  won't be able to boot from an IDE disk using SRM.
+
+	  If unsure, say N.
+
+config ARCH_MAY_HAVE_PC_FDC
+	def_bool y
+
+config SMP
+	bool "Symmetric multi-processing support"
+	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
+
+	  If you say N here, the kernel will run on uni- and multiprocessor
+	  machines, but will use only one CPU of a multiprocessor machine. If
+	  you say Y here, the kernel will run on many, but not all,
+	  uniprocessor machines. On a uniprocessor machine, the kernel
+	  will run faster if you say N here.
+
+	  See also the SMP-HOWTO available at
+	  <https://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int "Maximum number of CPUs (2-32)"
+	range 2 32
+	depends on SMP
+	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
+	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
+	help
+	  MARVEL support can handle a maximum of 32 CPUs, all the others
+	  with working support have a maximum of 4 CPUs.
+
+config ARCH_SPARSEMEM_ENABLE
+	bool "Sparse Memory Support"
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for systems that have huge holes in the physical address space.
+
+config ALPHA_WTINT
+	bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
+	default y if ALPHA_QEMU
+	default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
+	default n if !ALPHA_SRM && !ALPHA_GENERIC
+	default y if SMP
+	help
+	  The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
+	  to sleep until the next interrupt.  This may reduce the power
+	  consumed, and the heat produced by the computer.  However, it has
+	  the side effect of making the cycle counter unreliable as a timing
+	  device across the sleep.
+
+	  For emulation under QEMU, definitely say Y here, as we have other
+	  mechanisms for measuring time than the cycle counter.
+
+	  For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
+	  MILO, sleep mode is not supported so you might as well say N here.
+
+	  For SMP systems we cannot use the cycle counter for timing anyway,
+	  so you might as well say Y here.
+
+	  If unsure, say N.
+
+# LARGE_VMALLOC is racy, if you *really* need it then fix it first
+config ALPHA_LARGE_VMALLOC
+	bool
+	help
+	  Process creation and other aspects of virtual memory management can
+	  be streamlined if we restrict the kernel to one PGD for all vmalloc
+	  allocations.  This equates to about 8GB.
+
+	  Under normal circumstances, this is so far and above what is needed
+	  as to be laughable.  However, there are certain applications (such
+	  as benchmark-grade in-kernel web serving) that can make use of as
+	  much vmalloc space as is available.
+
+	  Say N unless you know you need gobs and gobs of vmalloc space.
+
+config VERBOSE_MCHECK
+	bool "Verbose Machine Checks"
+
+config VERBOSE_MCHECK_ON
+	int "Verbose Printing Mode (0=off, 1=on, 2=all)"
+	depends on VERBOSE_MCHECK
+	default 1
+	help
+	  This option allows the default printing mode to be set, and then
+	  possibly overridden by a boot command argument.
+
+	  For example, if one wanted the option of printing verbose
+	  machine checks, but wanted the default to be as if verbose
+	  machine check printing was turned off, then one would choose
+	  the printing mode to be 0. Then, upon reboot, one could add
+	  the boot command line "verbose_mcheck=1" to get the normal
+	  verbose machine check printing, or "verbose_mcheck=2" to get
+	  the maximum information available.
+
+	  Take the default (1) unless you want more control or more info.
+
+choice
+	prompt "Timer interrupt frequency (HZ)?"
+	default HZ_128 if ALPHA_QEMU
+	default HZ_1200 if ALPHA_RAWHIDE
+	default HZ_1024
+	help
+	  The frequency at which timer interrupts occur.  A high frequency
+	  minimizes latency, whereas a low frequency minimizes overhead of
+	  process accounting.  The later effect is especially significant
+	  when being run under QEMU.
+
+	  Note that some Alpha hardware cannot change the interrupt frequency
+	  of the timer.  If unsure, say 1024 (or 1200 for Rawhide).
+
+	config HZ_32
+		bool "32 Hz"
+	config HZ_64
+		bool "64 Hz"
+	config HZ_128
+		bool "128 Hz"
+	config HZ_256
+		bool "256 Hz"
+	config HZ_1024
+		bool "1024 Hz"
+	config HZ_1200
+		bool "1200 Hz"
+endchoice
+
+config HZ
+	int
+	default 32 if HZ_32
+	default 64 if HZ_64
+	default 128 if HZ_128
+	default 256 if HZ_256
+	default 1200 if HZ_1200
+	default 1024
+
+config SRM_ENV
+	tristate "SRM environment through procfs"
+	depends on PROC_FS
+	help
+	  If you enable this option, a subdirectory inside /proc called
+	  /proc/srm_environment will give you access to the all important
+	  SRM environment variables (those which have a name) and also
+	  to all others (by their internal number).
+
+	  SRM is something like a BIOS for Alpha machines. There are some
+	  other such BIOSes, like AlphaBIOS, which this driver cannot
+	  support (hey, that's not SRM!).
+
+	  Despite the fact that this driver doesn't work on all Alphas (but
+	  only on those which have SRM as their firmware), it's save to
+	  build it even if your particular machine doesn't know about SRM
+	  (or if you intend to compile a generic kernel). It will simply
+	  not create those subdirectory in /proc (and give you some warning,
+	  of course).
+
+	  This driver is also available as a module and will be called
+	  srm_env then.
+
+endmenu
+
+# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
+# but we also need it if VGA_HOSE is set
+config DUMMY_CONSOLE
+	bool
+	depends on VGA_HOSE
+	default y
diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
new file mode 100644
index 000000000..f85f4281c
--- /dev/null
+++ b/arch/alpha/Kconfig.debug
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config EARLY_PRINTK
+	bool
+	depends on ALPHA_GENERIC || ALPHA_SRM
+	default y
+
+config ALPHA_LEGACY_START_ADDRESS
+	bool "Legacy kernel start address"
+	depends on ALPHA_GENERIC
+	default n
+	help
+	  The 2.4 kernel changed the kernel start address from 0x310000
+	  to 0x810000 to make room for the Wildfire's larger SRM console.
+	  Recent consoles on Titan and Marvel machines also require the
+	  extra room.
+
+	  If you're using aboot 0.7 or later, the bootloader will examine the
+	  ELF headers to determine where to transfer control. Unfortunately,
+	  most older bootloaders -- APB or MILO -- hardcoded the kernel start
+	  address rather than examining the ELF headers, and the result is a
+	  hard lockup.
+
+	  Say Y if you have a broken bootloader.  Say N if you do not, or if
+	  you wish to run on Wildfire, Titan, or Marvel.
+
+config ALPHA_LEGACY_START_ADDRESS
+	bool
+	depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
+	default y
+
+config MATHEMU
+	tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
+	default y if !DEBUG_KERNEL || SMP
+	help
+	  This option is required for IEEE compliant floating point arithmetic
+	  on the Alpha. The only time you would ever not say Y is to say M in
+	  order to debug the code. Say Y unless you know what you are doing.
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
new file mode 100644
index 000000000..451580240
--- /dev/null
+++ b/arch/alpha/Makefile
@@ -0,0 +1,64 @@
+#
+# alpha/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+#
+
+NM := $(NM) -B
+
+LDFLAGS_vmlinux	:= -static -N #-relax
+CHECKFLAGS	+= -D__alpha__
+cflags-y	:= -pipe -mno-fp-regs -ffixed-8
+cflags-y	+= $(call cc-option, -fno-jump-tables)
+
+cpuflags-$(CONFIG_ALPHA_EV4)		:= -mcpu=ev4
+cpuflags-$(CONFIG_ALPHA_EV5)		:= -mcpu=ev5
+cpuflags-$(CONFIG_ALPHA_EV56)		:= -mcpu=ev56
+cpuflags-$(CONFIG_ALPHA_POLARIS)	:= -mcpu=pca56
+cpuflags-$(CONFIG_ALPHA_SX164)		:= -mcpu=pca56
+cpuflags-$(CONFIG_ALPHA_EV6)		:= -mcpu=ev6
+cpuflags-$(CONFIG_ALPHA_EV67)		:= -mcpu=ev67
+# If GENERIC, make sure to turn off any instruction set extensions that
+# the host compiler might have on by default.  Given that EV4 and EV5
+# have the same instruction set, prefer EV5 because an EV5 schedule is
+# more likely to keep an EV4 processor busy than vice-versa.
+cpuflags-$(CONFIG_ALPHA_GENERIC)	:= -mcpu=ev5
+
+cflags-y				+= $(cpuflags-y)
+
+
+# For TSUNAMI, we must have the assembler not emulate our instructions.
+# The same is true for IRONGATE, POLARIS, PYXIS.
+# BWX is most important, but we don't really want any emulation ever.
+KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
+
+libs-y				+= arch/alpha/lib/
+
+# export what is needed by arch/alpha/boot/Makefile
+LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
+export LIBS_Y
+
+boot := arch/alpha/boot
+
+#Default target when executing make with no arguments
+all boot: $(boot)/vmlinux.gz
+
+$(boot)/vmlinux.gz: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $@
+
+bootimage bootpfile bootpzfile: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
+
+define archhelp
+  echo '* boot		- Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
+  echo '  bootimage	- SRM bootable image (arch/alpha/boot/bootimage)'
+  echo '  bootpfile	- BOOTP bootable image (arch/alpha/boot/bootpfile)'
+  echo '  bootpzfile	- compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
+endef
diff --git a/arch/alpha/boot/Makefile b/arch/alpha/boot/Makefile
new file mode 100644
index 000000000..d8dba85e6
--- /dev/null
+++ b/arch/alpha/boot/Makefile
@@ -0,0 +1,120 @@
+#
+# arch/alpha/boot/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+#
+
+hostprogs	:= tools/mkbb tools/objstrip
+targets		:= vmlinux.gz vmlinux \
+		   vmlinux.nh tools/lxboot tools/bootlx tools/bootph \
+		   tools/bootpzh bootloader bootpheader bootpzheader 
+OBJSTRIP	:= $(obj)/tools/objstrip
+
+KBUILD_HOSTCFLAGS := -Wall -I$(objtree)/usr/include
+BOOTCFLAGS	+= -I$(objtree)/$(obj) -I$(srctree)/$(obj)
+
+# SRM bootable image.  Copy to offset 512 of a partition.
+$(obj)/bootimage: $(addprefix $(obj)/tools/,mkbb lxboot bootlx) $(obj)/vmlinux.nh
+	( cat $(obj)/tools/lxboot $(obj)/tools/bootlx $(obj)/vmlinux.nh ) > $@ 
+	$(obj)/tools/mkbb $@ $(obj)/tools/lxboot
+	@echo '  Bootimage $@ is ready'
+
+# BOOTP bootable image.  Define INITRD during make to append initrd image.
+$(obj)/bootpfile: $(obj)/tools/bootph $(obj)/vmlinux.nh
+	cat $(obj)/tools/bootph $(obj)/vmlinux.nh > $@
+ifdef INITRD
+	cat $(INITRD) >> $@
+endif
+
+# Compressed kernel BOOTP bootable image.
+# Define INITRD during make to append initrd image.
+$(obj)/bootpzfile: $(obj)/tools/bootpzh $(obj)/vmlinux.nh.gz
+	cat $(obj)/tools/bootpzh $(obj)/vmlinux.nh.gz > $@
+ifdef INITRD
+	cat $(INITRD) >> $@
+endif
+
+# Compressed kernel image
+$(obj)/vmlinux.gz: $(obj)/vmlinux FORCE
+	$(call if_changed,gzip)
+	@echo '  Kernel $@ is ready'
+
+$(obj)/main.o: $(obj)/ksize.h
+$(obj)/bootp.o: $(obj)/ksize.h
+$(obj)/bootpz.o: $(obj)/kzsize.h
+
+$(obj)/ksize.h: $(obj)/vmlinux.nh FORCE
+	echo "#define KERNEL_SIZE `ls -l $(obj)/vmlinux.nh | awk '{print $$5}'`" > $@T
+ifdef INITRD
+	[ -f $(INITRD) ] || exit 1
+	echo "#define INITRD_IMAGE_SIZE `ls -l $(INITRD) | awk '{print $$5}'`" >> $@T
+endif
+	cmp -s $@T $@ || mv -f $@T $@
+	rm -f $@T
+
+$(obj)/kzsize.h: $(obj)/vmlinux.nh.gz FORCE
+	echo "#define KERNEL_SIZE `ls -l $(obj)/vmlinux.nh | awk '{print $$5}'`" > $@T
+	echo "#define KERNEL_Z_SIZE `ls -l $(obj)/vmlinux.nh.gz | awk '{print $$5}'`" >> $@T
+ifdef INITRD
+	[ -f $(INITRD) ] || exit 1
+	echo "#define INITRD_IMAGE_SIZE `ls -l $(INITRD) | awk '{print $$5}'`" >> $@T
+endif
+	cmp -s $@T $@ || mv -f $@T $@
+	rm -f $@T
+
+quiet_cmd_strip = STRIP  $@
+      cmd_strip = $(STRIP) -o $@ $<
+
+$(obj)/vmlinux: vmlinux FORCE
+	$(call if_changed,strip)
+
+quiet_cmd_objstrip = OBJSTRIP $@
+      cmd_objstrip = $(OBJSTRIP) $(OSFLAGS_$(@F)) $< $@
+
+OSFLAGS_vmlinux.nh	:= -v
+OSFLAGS_lxboot		:= -p
+OSFLAGS_bootlx		:= -vb
+OSFLAGS_bootph		:= -vb
+OSFLAGS_bootpzh		:= -vb
+
+$(obj)/vmlinux.nh: vmlinux $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/vmlinux.nh.gz: $(obj)/vmlinux.nh FORCE
+	$(call if_changed,gzip)
+
+$(obj)/tools/lxboot: $(obj)/bootloader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootlx: $(obj)/bootloader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootph: $(obj)/bootpheader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootpzh: $(obj)/bootpzheader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootpheader  := -static -T # -N -relax
+LDFLAGS_bootpzheader := -static -T # -N -relax
+
+OBJ_bootlx   := $(obj)/head.o $(obj)/stdio.o $(obj)/main.o
+OBJ_bootph   := $(obj)/head.o $(obj)/stdio.o $(obj)/bootp.o
+OBJ_bootpzh  := $(obj)/head.o $(obj)/stdio.o $(obj)/bootpz.o $(obj)/misc.o
+
+$(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/bootpheader: $(obj)/bootloader.lds $(OBJ_bootph) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/bootpzheader: $(obj)/bootloader.lds $(OBJ_bootpzh) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/misc.o: lib/inflate.c
diff --git a/arch/alpha/boot/bootloader.lds b/arch/alpha/boot/bootloader.lds
new file mode 100644
index 000000000..8cdff54c6
--- /dev/null
+++ b/arch/alpha/boot/bootloader.lds
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+OUTPUT_FORMAT("elf64-alpha")
+ENTRY(__start)
+printk = srm_printk;
+SECTIONS
+{
+  . = 0x20000000;
+  .text : { *(.text) }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata : { *(.rodata) *(.rodata.*) }
+  .data : { *(.data) CONSTRUCTORS }
+  .got : { *(.got) }
+  .sdata : { *(.sdata) }
+  _edata = .;
+  PROVIDE (edata = .);
+  .sbss : { *(.sbss) *(.scommon) }
+  .bss : { *(.bss) *(COMMON) }
+  _end = . ;
+  PROVIDE (end = .);
+
+  .mdebug 0 : { *(.mdebug) }
+  .note 0 : { *(.note) }
+  .comment 0 : { *(.comment) }
+}
diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c
new file mode 100644
index 000000000..b4faba243
--- /dev/null
+++ b/arch/alpha/boot/bootp.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/bootp.c
+ *
+ * Copyright (C) 1997 Jay Estabrook
+ *
+ * This file is used for creating a bootp file for the Linux/AXP kernel
+ *
+ * based significantly on the arch/alpha/boot/main.c of Linus Torvalds
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#include <stdarg.h>
+
+#include "ksize.h"
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct *pcb_va, struct pcb_struct *pcb_pa,
+	unsigned long *vptb);
+
+extern void move_stack(unsigned long new_stack);
+
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+
+static inline void *
+find_pa(unsigned long *vptb, void *ptr)
+{
+	unsigned long address = (unsigned long) ptr;
+	unsigned long result;
+
+	result = vptb[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return (void *) result;
+}	
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define VPTB	((unsigned long *) 0x200000000)
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = find_pa(VPTB, pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code .. ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("Ok (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+static inline void
+load(unsigned long dst, unsigned long src, unsigned long count)
+{
+	memcpy((void *)dst, (void *)src, count);
+}
+
+/*
+ * Start the kernel.
+ */
+static inline void
+runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %0,%0,$27\n\t"
+		"jmp ($27)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR));
+}
+
+extern char _end;
+#define KERNEL_ORIGIN \
+	((((unsigned long)&_end) + 511) & ~511)
+
+void
+start_kernel(void)
+{
+	/*
+	 * Note that this crufty stuff with static and envval
+	 * and envbuf is because:
+	 *
+	 * 1. Frequently, the stack is short, and we don't want to overrun;
+	 * 2. Frequently the stack is where we are going to copy the kernel to;
+	 * 3. A certain SRM console required the GET_ENV output to stack.
+	 *    ??? A comment in the aboot sources indicates that the GET_ENV
+	 *    destination must be quadword aligned.  Might this explain the
+	 *    behaviour, rather than requiring output to the stack, which
+	 *    seems rather far-fetched.
+	 */
+	static long nbytes;
+	static char envval[256] __attribute__((aligned(8)));
+	static unsigned long initrd_start;
+
+	srm_printk("Linux/AXP bootp loader for Linux " UTS_RELEASE "\n");
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n",
+		           INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
+		srm_printk("Expected vptb at %p, got %p\n",
+			   VPTB, (void *)INIT_HWRPB->vptb);
+		return;
+	}
+	pal_init();
+
+	/* The initrd must be page-aligned.  See below for the 
+	   cause of the magic number 5.  */
+	initrd_start = ((START_ADDR + 5*KERNEL_SIZE + PAGE_SIZE) |
+			(PAGE_SIZE-1)) + 1;
+#ifdef INITRD_IMAGE_SIZE
+	srm_printk("Initrd positioned at %#lx\n", initrd_start);
+#endif
+
+	/*
+	 * Move the stack to a safe place to ensure it won't be
+	 * overwritten by kernel image.
+	 */
+	move_stack(initrd_start - PAGE_SIZE);
+
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0 || nbytes >= sizeof(envval)) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+	srm_printk("Loading the kernel...'%s'\n", envval);
+
+	/* NOTE: *no* callbacks or printouts from here on out!!! */
+
+	/* This is a hack, as some consoles seem to get virtual 20000000 (ie
+	 * where the SRM console puts the kernel bootp image) memory
+	 * overlapping physical memory where the kernel wants to be put,
+	 * which causes real problems when attempting to copy the former to
+	 * the latter... :-(
+	 *
+	 * So, we first move the kernel virtual-to-physical way above where
+	 * we physically want the kernel to end up, then copy it from there
+	 * to its final resting place... ;-}
+	 *
+	 * Sigh...  */
+
+#ifdef INITRD_IMAGE_SIZE
+	load(initrd_start, KERNEL_ORIGIN+KERNEL_SIZE, INITRD_IMAGE_SIZE);
+#endif
+        load(START_ADDR+(4*KERNEL_SIZE), KERNEL_ORIGIN, KERNEL_SIZE);
+        load(START_ADDR, START_ADDR+(4*KERNEL_SIZE), KERNEL_SIZE);
+
+	memset((char*)ZERO_PGE, 0, PAGE_SIZE);
+	strcpy((char*)ZERO_PGE, envval);
+#ifdef INITRD_IMAGE_SIZE
+	((long *)(ZERO_PGE+256))[0] = initrd_start;
+	((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
+#endif
+
+	runkernel();
+}
diff --git a/arch/alpha/boot/bootpz.c b/arch/alpha/boot/bootpz.c
new file mode 100644
index 000000000..90a2b341e
--- /dev/null
+++ b/arch/alpha/boot/bootpz.c
@@ -0,0 +1,475 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/bootpz.c
+ *
+ * Copyright (C) 1997 Jay Estabrook
+ *
+ * This file is used for creating a compressed BOOTP file for the
+ * Linux/AXP kernel
+ *
+ * based significantly on the arch/alpha/boot/main.c of Linus Torvalds
+ * and the decompression code from MILO.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#include <stdarg.h>
+
+#include "kzsize.h"
+
+/* FIXME FIXME FIXME */
+#define MALLOC_AREA_SIZE 0x200000 /* 2MB for now */
+/* FIXME FIXME FIXME */
+
+
+/*
+  WARNING NOTE
+
+  It is very possible that turning on additional messages may cause
+  kernel image corruption due to stack usage to do the printing.
+
+*/
+
+#undef DEBUG_CHECK_RANGE
+#undef DEBUG_ADDRESSES
+#undef DEBUG_LAST_STEPS
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
+	unsigned long *vptb);
+
+extern int decompress_kernel(void* destination, void *source,
+			     size_t ksize, size_t kzsize);
+
+extern void move_stack(unsigned long new_stack);
+
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+#define VPTB	((unsigned long *) 0x200000000)
+
+static inline unsigned long
+find_pa(unsigned long address)
+{
+	unsigned long result;
+
+	result = VPTB[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return result;
+}	
+
+int
+check_range(unsigned long vstart, unsigned long vend,
+	    unsigned long kstart, unsigned long kend)
+{
+	unsigned long vaddr, kaddr;
+
+#ifdef DEBUG_CHECK_RANGE
+	srm_printk("check_range: V[0x%lx:0x%lx] K[0x%lx:0x%lx]\n",
+		   vstart, vend, kstart, kend);
+#endif
+	/* do some range checking for detecting an overlap... */
+	for (vaddr = vstart; vaddr <= vend; vaddr += PAGE_SIZE)
+	{
+		kaddr = (find_pa(vaddr) | PAGE_OFFSET);
+		if (kaddr >= kstart && kaddr <= kend)
+		{
+#ifdef DEBUG_CHECK_RANGE
+			srm_printk("OVERLAP: vaddr 0x%lx kaddr 0x%lx"
+				   " [0x%lx:0x%lx]\n",
+				   vaddr, kaddr, kstart, kend);
+#endif
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = (struct pcb_struct *)find_pa((unsigned long)pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code... ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("OK (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+/*
+ * Start the kernel.
+ */
+static inline void
+runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %0,%0,$27\n\t"
+		"jmp ($27)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR));
+}
+
+/* Must record the SP (it is virtual) on entry, so we can make sure
+   not to overwrite it during movement or decompression. */
+unsigned long SP_on_entry;
+
+/* Calculate the kernel image address based on the end of the BOOTP
+   bootstrapper (ie this program).
+*/
+extern char _end;
+#define KERNEL_ORIGIN \
+	((((unsigned long)&_end) + 511) & ~511)
+
+/* Round address to next higher page boundary. */
+#define NEXT_PAGE(a)	(((a) | (PAGE_SIZE - 1)) + 1)
+
+#ifdef INITRD_IMAGE_SIZE
+# define REAL_INITRD_SIZE INITRD_IMAGE_SIZE
+#else
+# define REAL_INITRD_SIZE 0
+#endif
+
+/* Defines from include/asm-alpha/system.h
+
+	BOOT_ADDR	Virtual address at which the consoles loads
+			the BOOTP image.
+
+	KERNEL_START    KSEG address at which the kernel is built to run,
+			which includes some initial data pages before the
+			code.
+
+	START_ADDR	KSEG address of the entry point of kernel code.
+
+	ZERO_PGE	KSEG address of page full of zeroes, but 
+			upon entry to kernel, it can be expected
+			to hold the parameter list and possible
+			INTRD information.
+
+   These are used in the local defines below.
+*/
+  
+
+/* Virtual addresses for the BOOTP image. Note that this includes the
+   bootstrapper code as well as the compressed kernel image, and
+   possibly the INITRD image.
+
+   Oh, and do NOT forget the STACK, which appears to be placed virtually
+   beyond the end of the loaded image.
+*/
+#define V_BOOT_IMAGE_START	BOOT_ADDR
+#define V_BOOT_IMAGE_END	SP_on_entry
+
+/* Virtual addresses for just the bootstrapper part of the BOOTP image. */
+#define V_BOOTSTRAPPER_START	BOOT_ADDR
+#define V_BOOTSTRAPPER_END	KERNEL_ORIGIN
+
+/* Virtual addresses for just the data part of the BOOTP
+   image. This may also include the INITRD image, but always
+   includes the STACK.
+*/
+#define V_DATA_START		KERNEL_ORIGIN
+#define V_INITRD_START		(KERNEL_ORIGIN + KERNEL_Z_SIZE)
+#define V_INTRD_END		(V_INITRD_START + REAL_INITRD_SIZE)
+#define V_DATA_END	 	V_BOOT_IMAGE_END
+
+/* KSEG addresses for the uncompressed kernel.
+
+   Note that the end address includes workspace for the decompression.
+   Note also that the DATA_START address is ZERO_PGE, to which we write
+   just before jumping to the kernel image at START_ADDR.
+ */
+#define K_KERNEL_DATA_START	ZERO_PGE
+#define K_KERNEL_IMAGE_START	START_ADDR
+#define K_KERNEL_IMAGE_END	(START_ADDR + KERNEL_SIZE)
+
+/* Define to where we may have to decompress the kernel image, before
+   we move it to the final position, in case of overlap. This will be
+   above the final position of the kernel.
+
+   Regardless of overlap, we move the INITRD image to the end of this
+   copy area, because there needs to be a buffer area after the kernel
+   for "bootmem" anyway.
+*/
+#define K_COPY_IMAGE_START	NEXT_PAGE(K_KERNEL_IMAGE_END)
+/* Reserve one page below INITRD for the new stack. */
+#define K_INITRD_START \
+    NEXT_PAGE(K_COPY_IMAGE_START + KERNEL_SIZE + PAGE_SIZE)
+#define K_COPY_IMAGE_END \
+    (K_INITRD_START + REAL_INITRD_SIZE + MALLOC_AREA_SIZE)
+#define K_COPY_IMAGE_SIZE \
+    NEXT_PAGE(K_COPY_IMAGE_END - K_COPY_IMAGE_START)
+
+void
+start_kernel(void)
+{
+	int must_move = 0;
+
+	/* Initialize these for the decompression-in-place situation,
+	   which is the smallest amount of work and most likely to
+	   occur when using the normal START_ADDR of the kernel
+	   (currently set to 16MB, to clear all console code.
+	*/
+	unsigned long uncompressed_image_start = K_KERNEL_IMAGE_START;
+	unsigned long uncompressed_image_end = K_KERNEL_IMAGE_END;
+
+	unsigned long initrd_image_start = K_INITRD_START;
+
+	/*
+	 * Note that this crufty stuff with static and envval
+	 * and envbuf is because:
+	 *
+	 * 1. Frequently, the stack is short, and we don't want to overrun;
+	 * 2. Frequently the stack is where we are going to copy the kernel to;
+	 * 3. A certain SRM console required the GET_ENV output to stack.
+	 *    ??? A comment in the aboot sources indicates that the GET_ENV
+	 *    destination must be quadword aligned.  Might this explain the
+	 *    behaviour, rather than requiring output to the stack, which
+	 *    seems rather far-fetched.
+	 */
+	static long nbytes;
+	static char envval[256] __attribute__((aligned(8)));
+	register unsigned long asm_sp asm("30");
+
+	SP_on_entry = asm_sp;
+
+	srm_printk("Linux/Alpha BOOTPZ Loader for Linux " UTS_RELEASE "\n");
+
+	/* Validity check the HWRPB. */
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n",
+		           INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
+		srm_printk("Expected vptb at %p, got %p\n",
+			   VPTB, (void *)INIT_HWRPB->vptb);
+		return;
+	}
+
+	/* PALcode (re)initialization. */
+	pal_init();
+
+	/* Get the parameter list from the console environment variable. */
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0 || nbytes >= sizeof(envval)) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+
+#ifdef DEBUG_ADDRESSES
+	srm_printk("START_ADDR 0x%lx\n", START_ADDR);
+	srm_printk("KERNEL_ORIGIN 0x%lx\n", KERNEL_ORIGIN);
+	srm_printk("KERNEL_SIZE 0x%x\n", KERNEL_SIZE);
+	srm_printk("KERNEL_Z_SIZE 0x%x\n", KERNEL_Z_SIZE);
+#endif
+
+	/* Since all the SRM consoles load the BOOTP image at virtual
+	 * 0x20000000, we have to ensure that the physical memory
+	 * pages occupied by that image do NOT overlap the physical
+	 * address range where the kernel wants to be run.  This
+	 * causes real problems when attempting to cdecompress the
+	 * former into the latter... :-(
+	 *
+	 * So, we may have to decompress/move the kernel/INITRD image
+	 * virtual-to-physical someplace else first before moving
+	 * kernel /INITRD to their final resting places... ;-}
+	 *
+	 * Sigh...
+	 */
+
+	/* First, check to see if the range of addresses occupied by
+	   the bootstrapper part of the BOOTP image include any of the
+	   physical pages into which the kernel will be placed for
+	   execution.
+
+	   We only need check on the final kernel image range, since we
+	   will put the INITRD someplace that we can be sure is not
+	   in conflict.
+	 */
+	if (check_range(V_BOOTSTRAPPER_START, V_BOOTSTRAPPER_END,
+			K_KERNEL_DATA_START, K_KERNEL_IMAGE_END))
+	{
+		srm_printk("FATAL ERROR: overlap of bootstrapper code\n");
+		__halt();
+	}
+
+	/* Next, check to see if the range of addresses occupied by
+	   the compressed kernel/INITRD/stack portion of the BOOTP
+	   image include any of the physical pages into which the
+	   decompressed kernel or the INITRD will be placed for
+	   execution.
+	 */
+	if (check_range(V_DATA_START, V_DATA_END,
+			K_KERNEL_IMAGE_START, K_COPY_IMAGE_END))
+	{
+#ifdef DEBUG_ADDRESSES
+		srm_printk("OVERLAP: cannot decompress in place\n");
+#endif
+		uncompressed_image_start = K_COPY_IMAGE_START;
+		uncompressed_image_end = K_COPY_IMAGE_END;
+		must_move = 1;
+
+		/* Finally, check to see if the range of addresses
+		   occupied by the compressed kernel/INITRD part of
+		   the BOOTP image include any of the physical pages
+		   into which that part is to be copied for
+		   decompression.
+		*/
+		while (check_range(V_DATA_START, V_DATA_END,
+				   uncompressed_image_start,
+				   uncompressed_image_end))
+		{
+#if 0
+			uncompressed_image_start += K_COPY_IMAGE_SIZE;
+			uncompressed_image_end += K_COPY_IMAGE_SIZE;
+			initrd_image_start += K_COPY_IMAGE_SIZE;
+#else
+			/* Keep as close as possible to end of BOOTP image. */
+			uncompressed_image_start += PAGE_SIZE;
+			uncompressed_image_end += PAGE_SIZE;
+			initrd_image_start += PAGE_SIZE;
+#endif
+		}
+	}
+
+	srm_printk("Starting to load the kernel with args '%s'\n", envval);
+
+#ifdef DEBUG_ADDRESSES
+	srm_printk("Decompressing the kernel...\n"
+		   "...from 0x%lx to 0x%lx size 0x%x\n",
+		   V_DATA_START,
+		   uncompressed_image_start,
+		   KERNEL_SIZE);
+#endif
+        decompress_kernel((void *)uncompressed_image_start,
+			  (void *)V_DATA_START,
+			  KERNEL_SIZE, KERNEL_Z_SIZE);
+
+	/*
+	 * Now, move things to their final positions, if/as required.
+	 */
+
+#ifdef INITRD_IMAGE_SIZE
+
+	/* First, we always move the INITRD image, if present. */
+#ifdef DEBUG_ADDRESSES
+	srm_printk("Moving the INITRD image...\n"
+		   " from 0x%lx to 0x%lx size 0x%x\n",
+		   V_INITRD_START,
+		   initrd_image_start,
+		   INITRD_IMAGE_SIZE);
+#endif
+	memcpy((void *)initrd_image_start, (void *)V_INITRD_START,
+	       INITRD_IMAGE_SIZE);
+
+#endif /* INITRD_IMAGE_SIZE */
+
+	/* Next, we may have to move the uncompressed kernel to the
+	   final destination.
+	 */
+	if (must_move) {
+#ifdef DEBUG_ADDRESSES
+		srm_printk("Moving the uncompressed kernel...\n"
+			   "...from 0x%lx to 0x%lx size 0x%x\n",
+			   uncompressed_image_start,
+			   K_KERNEL_IMAGE_START,
+			   (unsigned)KERNEL_SIZE);
+#endif
+		/*
+		 * Move the stack to a safe place to ensure it won't be
+		 * overwritten by kernel image.
+		 */
+		move_stack(initrd_image_start - PAGE_SIZE);
+
+		memcpy((void *)K_KERNEL_IMAGE_START,
+		       (void *)uncompressed_image_start, KERNEL_SIZE);
+	}
+	
+	/* Clear the zero page, then move the argument list in. */
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Preparing ZERO_PGE...\n");
+#endif
+	memset((char*)ZERO_PGE, 0, PAGE_SIZE);
+	strcpy((char*)ZERO_PGE, envval);
+
+#ifdef INITRD_IMAGE_SIZE
+
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Preparing INITRD info...\n");
+#endif
+	/* Finally, set the INITRD paramenters for the kernel. */
+	((long *)(ZERO_PGE+256))[0] = initrd_image_start;
+	((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
+
+#endif /* INITRD_IMAGE_SIZE */
+
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Doing 'runkernel()'...\n");
+#endif
+	runkernel();
+}
+
+ /* dummy function, should never be called. */
+void *__kmalloc(size_t size, gfp_t flags)
+{
+	return (void *)NULL;
+}
diff --git a/arch/alpha/boot/head.S b/arch/alpha/boot/head.S
new file mode 100644
index 000000000..06a7c95fe
--- /dev/null
+++ b/arch/alpha/boot/head.S
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/boot/head.S
+ *
+ * initial bootloader stuff..
+ */
+
+#include <asm/pal.h>
+
+	.set noreorder
+	.globl	__start
+	.ent	__start
+__start:
+	br	$29,2f
+2:	ldgp	$29,0($29)
+	jsr	$26,start_kernel
+	call_pal PAL_halt
+	.end __start
+
+	.align 5
+	.globl	wrent
+	.ent	wrent
+wrent:
+	.prologue 0
+	call_pal PAL_wrent
+	ret ($26)
+	.end wrent
+
+	.align 5
+	.globl	wrkgp
+	.ent	wrkgp
+wrkgp:
+	.prologue 0
+	call_pal PAL_wrkgp
+	ret ($26)
+	.end wrkgp
+
+	.align 5
+	.globl	switch_to_osf_pal
+	.ent	switch_to_osf_pal
+switch_to_osf_pal:
+	subq	$30,128,$30
+	.frame	$30,128,$26
+	stq	$26,0($30)
+	stq	$1,8($30)
+	stq	$2,16($30)
+	stq	$3,24($30)
+	stq	$4,32($30)
+	stq	$5,40($30)
+	stq	$6,48($30)
+	stq	$7,56($30)
+	stq	$8,64($30)
+	stq	$9,72($30)
+	stq	$10,80($30)
+	stq	$11,88($30)
+	stq	$12,96($30)
+	stq	$13,104($30)
+	stq	$14,112($30)
+	stq	$15,120($30)
+	.prologue 0
+
+	stq	$30,0($17)	/* save KSP in PCB */
+
+	bis	$30,$30,$20	/* a4 = KSP */
+	br	$17,1f
+
+	ldq	$26,0($30)
+	ldq	$1,8($30)
+	ldq	$2,16($30)
+	ldq	$3,24($30)
+	ldq	$4,32($30)
+	ldq	$5,40($30)
+	ldq	$6,48($30)
+	ldq	$7,56($30)
+	ldq	$8,64($30)
+	ldq	$9,72($30)
+	ldq	$10,80($30)
+	ldq	$11,88($30)
+	ldq	$12,96($30)
+	ldq	$13,104($30)
+	ldq	$14,112($30)
+	ldq	$15,120($30)
+	addq	$30,128,$30
+	ret ($26)
+1:	call_pal PAL_swppal
+	.end	switch_to_osf_pal
+
+	.align 3
+	.globl	tbi
+	.ent	tbi
+tbi:
+	.prologue 0
+	call_pal PAL_tbi
+	ret	($26)
+	.end tbi
+
+	.align 3
+	.globl	halt
+	.ent	halt
+halt:
+	.prologue 0
+	call_pal PAL_halt
+	.end halt
+
+/* $16 - new stack page */
+	.align 3
+	.globl	move_stack
+	.ent	move_stack
+move_stack:
+	.prologue 0
+	lda	$0, 0x1fff($31)
+	and	$0, $30, $1			/* Stack offset */
+	or	$1, $16, $16			/* New stack pointer */
+	mov	$30, $1
+	mov	$16, $2
+1:	ldq	$3, 0($1)			/* Move the stack */
+	addq	$1, 8, $1
+	stq	$3, 0($2)
+	and	$0, $1, $4
+	addq	$2, 8, $2
+	bne	$4, 1b
+	mov	$16, $30
+	ret	($26)
+	.end move_stack
diff --git a/arch/alpha/boot/main.c b/arch/alpha/boot/main.c
new file mode 100644
index 000000000..e5347a080
--- /dev/null
+++ b/arch/alpha/boot/main.c
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/main.c
+ *
+ * Copyright (C) 1994, 1995 Linus Torvalds
+ *
+ * This file is the bootloader for the Linux/AXP kernel
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+
+#include <stdarg.h>
+
+#include "ksize.h"
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
+	unsigned long *vptb);
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+
+static inline void *
+find_pa(unsigned long *vptb, void *ptr)
+{
+	unsigned long address = (unsigned long) ptr;
+	unsigned long result;
+
+	result = vptb[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return (void *) result;
+}	
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define VPTB	((unsigned long *) 0x200000000)
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = find_pa(VPTB, pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code .. ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("Ok (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+static inline long openboot(void)
+{
+	char bootdev[256];
+	long result;
+
+	result = callback_getenv(ENV_BOOTED_DEV, bootdev, 255);
+	if (result < 0)
+		return result;
+	return callback_open(bootdev, result & 255);
+}
+
+static inline long close(long dev)
+{
+	return callback_close(dev);
+}
+
+static inline long load(long dev, unsigned long addr, unsigned long count)
+{
+	char bootfile[256];
+	extern char _end;
+	long result, boot_size = &_end - (char *) BOOT_ADDR;
+
+	result = callback_getenv(ENV_BOOTED_FILE, bootfile, 255);
+	if (result < 0)
+		return result;
+	result &= 255;
+	bootfile[result] = '\0';
+	if (result)
+		srm_printk("Boot file specification (%s) not implemented\n",
+		       bootfile);
+	return callback_read(dev, count, (void *)addr, boot_size/512 + 1);
+}
+
+/*
+ * Start the kernel.
+ */
+static void runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %1,%1,$30\n\t"
+		"bis %0,%0,$26\n\t"
+		"ret ($26)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR),
+		  "r" (PAGE_SIZE + INIT_STACK));
+}
+
+void start_kernel(void)
+{
+	long i;
+	long dev;
+	int nbytes;
+	char envval[256];
+
+	srm_printk("Linux/AXP bootloader for Linux " UTS_RELEASE "\n");
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n", INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	pal_init();
+	dev = openboot();
+	if (dev < 0) {
+		srm_printk("Unable to open boot device: %016lx\n", dev);
+		return;
+	}
+	dev &= 0xffffffff;
+	srm_printk("Loading vmlinux ...");
+	i = load(dev, START_ADDR, KERNEL_SIZE);
+	close(dev);
+	if (i != KERNEL_SIZE) {
+		srm_printk("Failed (%lx)\n", i);
+		return;
+	}
+
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+	strcpy((char*)ZERO_PGE, envval);
+
+	srm_printk(" Ok\nNow booting the kernel\n");
+	runkernel();
+	for (i = 0 ; i < 0x100000000 ; i++)
+		/* nothing */;
+	__halt();
+}
diff --git a/arch/alpha/boot/misc.c b/arch/alpha/boot/misc.c
new file mode 100644
index 000000000..325d4dd4f
--- /dev/null
+++ b/arch/alpha/boot/misc.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * misc.c
+ * 
+ * This is a collection of several routines from gzip-1.0.3 
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Modified for ARM Linux by Russell King
+ *
+ * Nicolas Pitre <nico@visuaide.com>  1999/04/14 :
+ *  For this code to run directly from Flash, all constant variables must
+ *  be marked with 'const' and all other variables initialized at run-time 
+ *  only.  This way all non constant variables will end up in the bss segment,
+ *  which should point to addresses in RAM and cleared to 0 on start.
+ *  This allows for a much quicker boot time.
+ *
+ * Modified for Alpha, from the ARM version, by Jay Estabrook 2003.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include <linux/uaccess.h>
+
+#define memzero(s,n)	memset ((s),0,(n))
+#define puts		srm_printk
+extern long srm_printk(const char *, ...)
+     __attribute__ ((format (printf, 1, 2)));
+
+/*
+ * gzip declarations
+ */
+#define OF(args)  args
+#define STATIC static
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x8000		/* Window size must be at least 32k, */
+				/* and a power of two */
+
+static uch *inbuf;		/* input buffer */
+static uch *window;		/* Sliding window buffer */
+
+static unsigned insize;		/* valid bytes in inbuf */
+static unsigned inptr;		/* index of next byte to be processed in inbuf */
+static unsigned outcnt;		/* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+
+static char *input_data;
+static int  input_data_size;
+
+static uch *output_data;
+static ulg output_ptr;
+static ulg bytes_out;
+
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern int end;
+static ulg free_mem_ptr;
+static ulg free_mem_end_ptr;
+
+#define HEAP_SIZE 0x3000
+
+#include "../../../lib/inflate.c"
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+int fill_inbuf(void)
+{
+	if (insize != 0)
+		error("ran out of input data");
+
+	inbuf = input_data;
+	insize = input_data_size;
+
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+void flush_window(void)
+{
+	ulg c = crc;
+	unsigned n;
+	uch *in, *out, ch;
+
+	in = window;
+	out = &output_data[output_ptr];
+	for (n = 0; n < outcnt; n++) {
+		ch = *out++ = *in++;
+		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+	}
+	crc = c;
+	bytes_out += (ulg)outcnt;
+	output_ptr += (ulg)outcnt;
+	outcnt = 0;
+/*	puts("."); */
+}
+
+static void error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+
+	while(1);	/* Halt */
+}
+
+unsigned int
+decompress_kernel(void *output_start,
+		  void *input_start,
+		  size_t ksize,
+		  size_t kzsize)
+{
+	output_data		= (uch *)output_start;
+	input_data		= (uch *)input_start;
+	input_data_size		= kzsize; /* use compressed size */
+
+	/* FIXME FIXME FIXME */
+	free_mem_ptr		= (ulg)output_start + ksize;
+	free_mem_end_ptr	= (ulg)output_start + ksize + 0x200000;
+	/* FIXME FIXME FIXME */
+
+	/* put in temp area to reduce initial footprint */
+	window = malloc(WSIZE);
+
+	makecrc();
+/*	puts("Uncompressing Linux..."); */
+	gunzip();
+/*	puts(" done, booting the kernel.\n"); */
+	return output_ptr;
+}
diff --git a/arch/alpha/boot/stdio.c b/arch/alpha/boot/stdio.c
new file mode 100644
index 000000000..60f73ccd2
--- /dev/null
+++ b/arch/alpha/boot/stdio.c
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ */
+#include <stdarg.h>
+#include <stddef.h>
+
+size_t strnlen(const char * s, size_t count)
+{
+	const char *sc;
+
+	for (sc = s; count-- && *sc != '\0'; ++sc)
+		/* nothing */;
+	return sc - s;
+}
+
+# define do_div(n, base) ({						\
+	unsigned int __base = (base);					\
+	unsigned int __rem;						\
+	__rem = ((unsigned long long)(n)) % __base;			\
+	(n) = ((unsigned long long)(n)) / __base;			\
+	__rem;								\
+})
+
+
+static int skip_atoi(const char **s)
+{
+	int i, c;
+
+	for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
+		i = i*10 + c - '0';
+	return i;
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SPECIAL	32		/* 0x */
+#define LARGE	64		/* use 'ABCDEF' instead of 'abcdef' */
+
+static char * number(char * str, unsigned long long num, int base, int size, int precision, int type)
+{
+	char c,sign,tmp[66];
+	const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+	int i;
+
+	if (type & LARGE)
+		digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+	if (type & LEFT)
+		type &= ~ZEROPAD;
+	if (base < 2 || base > 36)
+		return 0;
+	c = (type & ZEROPAD) ? '0' : ' ';
+	sign = 0;
+	if (type & SIGN) {
+		if ((signed long long)num < 0) {
+			sign = '-';
+			num = - (signed long long)num;
+			size--;
+		} else if (type & PLUS) {
+			sign = '+';
+			size--;
+		} else if (type & SPACE) {
+			sign = ' ';
+			size--;
+		}
+	}
+	if (type & SPECIAL) {
+		if (base == 16)
+			size -= 2;
+		else if (base == 8)
+			size--;
+	}
+	i = 0;
+	if (num == 0)
+		tmp[i++]='0';
+	else while (num != 0) {
+		tmp[i++] = digits[do_div(num, base)];
+	}
+	if (i > precision)
+		precision = i;
+	size -= precision;
+	if (!(type&(ZEROPAD+LEFT)))
+		while(size-->0)
+			*str++ = ' ';
+	if (sign)
+		*str++ = sign;
+	if (type & SPECIAL) {
+		if (base==8)
+			*str++ = '0';
+		else if (base==16) {
+			*str++ = '0';
+			*str++ = digits[33];
+		}
+	}
+	if (!(type & LEFT))
+		while (size-- > 0)
+			*str++ = c;
+	while (i < precision--)
+		*str++ = '0';
+	while (i-- > 0)
+		*str++ = tmp[i];
+	while (size-- > 0)
+		*str++ = ' ';
+	return str;
+}
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+	int len;
+	unsigned long long num;
+	int i, base;
+	char * str;
+	const char *s;
+
+	int flags;		/* flags to number() */
+
+	int field_width;	/* width of output field */
+	int precision;		/* min. # of digits for integers; max
+				   number of chars for from string */
+	int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+	                        /* 'z' support added 23/7/1999 S.H.    */
+				/* 'z' changed to 'Z' --davidm 1/25/99 */
+
+
+	for (str=buf ; *fmt ; ++fmt) {
+		if (*fmt != '%') {
+			*str++ = *fmt;
+			continue;
+		}
+
+		/* process flags */
+		flags = 0;
+		repeat:
+			++fmt;		/* this also skips first '%' */
+			switch (*fmt) {
+				case '-': flags |= LEFT; goto repeat;
+				case '+': flags |= PLUS; goto repeat;
+				case ' ': flags |= SPACE; goto repeat;
+				case '#': flags |= SPECIAL; goto repeat;
+				case '0': flags |= ZEROPAD; goto repeat;
+				}
+
+		/* get field width */
+		field_width = -1;
+		if ('0' <= *fmt && *fmt <= '9')
+			field_width = skip_atoi(&fmt);
+		else if (*fmt == '*') {
+			++fmt;
+			/* it's the next argument */
+			field_width = va_arg(args, int);
+			if (field_width < 0) {
+				field_width = -field_width;
+				flags |= LEFT;
+			}
+		}
+
+		/* get the precision */
+		precision = -1;
+		if (*fmt == '.') {
+			++fmt;
+			if ('0' <= *fmt && *fmt <= '9')
+				precision = skip_atoi(&fmt);
+			else if (*fmt == '*') {
+				++fmt;
+				/* it's the next argument */
+				precision = va_arg(args, int);
+			}
+			if (precision < 0)
+				precision = 0;
+		}
+
+		/* get the conversion qualifier */
+		qualifier = -1;
+		if (*fmt == 'l' && *(fmt + 1) == 'l') {
+			qualifier = 'q';
+			fmt += 2;
+		} else if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L'
+			|| *fmt == 'Z') {
+			qualifier = *fmt;
+			++fmt;
+		}
+
+		/* default base */
+		base = 10;
+
+		switch (*fmt) {
+		case 'c':
+			if (!(flags & LEFT))
+				while (--field_width > 0)
+					*str++ = ' ';
+			*str++ = (unsigned char) va_arg(args, int);
+			while (--field_width > 0)
+				*str++ = ' ';
+			continue;
+
+		case 's':
+			s = va_arg(args, char *);
+			if (!s)
+				s = "<NULL>";
+
+			len = strnlen(s, precision);
+
+			if (!(flags & LEFT))
+				while (len < field_width--)
+					*str++ = ' ';
+			for (i = 0; i < len; ++i)
+				*str++ = *s++;
+			while (len < field_width--)
+				*str++ = ' ';
+			continue;
+
+		case 'p':
+			if (field_width == -1) {
+				field_width = 2*sizeof(void *);
+				flags |= ZEROPAD;
+			}
+			str = number(str,
+				(unsigned long) va_arg(args, void *), 16,
+				field_width, precision, flags);
+			continue;
+
+
+		case 'n':
+			if (qualifier == 'l') {
+				long * ip = va_arg(args, long *);
+				*ip = (str - buf);
+			} else if (qualifier == 'Z') {
+				size_t * ip = va_arg(args, size_t *);
+				*ip = (str - buf);
+			} else {
+				int * ip = va_arg(args, int *);
+				*ip = (str - buf);
+			}
+			continue;
+
+		case '%':
+			*str++ = '%';
+			continue;
+
+		/* integer number formats - set up the flags and "break" */
+		case 'o':
+			base = 8;
+			break;
+
+		case 'X':
+			flags |= LARGE;
+		case 'x':
+			base = 16;
+			break;
+
+		case 'd':
+		case 'i':
+			flags |= SIGN;
+		case 'u':
+			break;
+
+		default:
+			*str++ = '%';
+			if (*fmt)
+				*str++ = *fmt;
+			else
+				--fmt;
+			continue;
+		}
+		if (qualifier == 'l') {
+			num = va_arg(args, unsigned long);
+			if (flags & SIGN)
+				num = (signed long) num;
+		} else if (qualifier == 'q') {
+			num = va_arg(args, unsigned long long);
+			if (flags & SIGN)
+				num = (signed long long) num;
+		} else if (qualifier == 'Z') {
+			num = va_arg(args, size_t);
+		} else if (qualifier == 'h') {
+			num = (unsigned short) va_arg(args, int);
+			if (flags & SIGN)
+				num = (signed short) num;
+		} else {
+			num = va_arg(args, unsigned int);
+			if (flags & SIGN)
+				num = (signed int) num;
+		}
+		str = number(str, num, base, field_width, precision, flags);
+	}
+	*str = '\0';
+	return str-buf;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+	va_list args;
+	int i;
+
+	va_start(args, fmt);
+	i=vsprintf(buf,fmt,args);
+	va_end(args);
+	return i;
+}
diff --git a/arch/alpha/boot/tools/mkbb.c b/arch/alpha/boot/tools/mkbb.c
new file mode 100644
index 000000000..fc47f33f8
--- /dev/null
+++ b/arch/alpha/boot/tools/mkbb.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0
+/* This utility makes a bootblock suitable for the SRM console/miniloader */
+
+/* Usage:
+ *	mkbb <device> <lxboot>
+ *
+ * Where <device> is the name of the device to install the bootblock on,
+ * and <lxboot> is the name of a bootblock to merge in.  This bootblock
+ * contains the offset and size of the bootloader.  It must be exactly
+ * 512 bytes long.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+/* Minimal definition of disklabel, so we don't have to include
+ * asm/disklabel.h (confuses make)
+ */
+#ifndef MAXPARTITIONS
+#define MAXPARTITIONS   8                       /* max. # of partitions */
+#endif
+
+#ifndef u8
+#define u8 unsigned char
+#endif
+
+#ifndef u16
+#define u16 unsigned short
+#endif
+
+#ifndef u32
+#define u32 unsigned int
+#endif
+
+struct disklabel {
+    u32	d_magic;				/* must be DISKLABELMAGIC */
+    u16	d_type, d_subtype;
+    u8	d_typename[16];
+    u8	d_packname[16];
+    u32	d_secsize;
+    u32	d_nsectors;
+    u32	d_ntracks;
+    u32	d_ncylinders;
+    u32	d_secpercyl;
+    u32	d_secprtunit;
+    u16	d_sparespertrack;
+    u16	d_sparespercyl;
+    u32	d_acylinders;
+    u16	d_rpm, d_interleave, d_trackskew, d_cylskew;
+    u32	d_headswitch, d_trkseek, d_flags;
+    u32	d_drivedata[5];
+    u32	d_spare[5];
+    u32	d_magic2;				/* must be DISKLABELMAGIC */
+    u16	d_checksum;
+    u16	d_npartitions;
+    u32	d_bbsize, d_sbsize;
+    struct d_partition {
+	u32	p_size;
+	u32	p_offset;
+	u32	p_fsize;
+	u8	p_fstype;
+	u8	p_frag;
+	u16	p_cpg;
+    } d_partitions[MAXPARTITIONS];
+};
+
+
+typedef union __bootblock {
+    struct {
+        char			__pad1[64];
+        struct disklabel	__label;
+    } __u1;
+    struct {
+	unsigned long		__pad2[63];
+	unsigned long		__checksum;
+    } __u2;
+    char		bootblock_bytes[512];
+    unsigned long	bootblock_quadwords[64];
+} bootblock;
+
+#define	bootblock_label		__u1.__label
+#define bootblock_checksum	__u2.__checksum
+
+int main(int argc, char ** argv)
+{
+    bootblock		bootblock_from_disk;
+    bootblock		bootloader_image;
+    int			dev, fd;
+    int			i;
+    int			nread;
+
+    /* Make sure of the arg count */
+    if(argc != 3) {
+	fprintf(stderr, "Usage: %s device lxboot\n", argv[0]);
+	exit(0);
+    }
+
+    /* First, open the device and make sure it's accessible */
+    dev = open(argv[1], O_RDWR);
+    if(dev < 0) {
+	perror(argv[1]);
+	exit(0);
+    }
+
+    /* Now open the lxboot and make sure it's reasonable */
+    fd = open(argv[2], O_RDONLY);
+    if(fd < 0) {
+	perror(argv[2]);
+	close(dev);
+	exit(0);
+    }
+
+    /* Read in the lxboot */
+    nread = read(fd, &bootloader_image, sizeof(bootblock));
+    if(nread != sizeof(bootblock)) {
+	perror("lxboot read");
+	fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread);
+	exit(0);
+    }
+
+    /* Read in the bootblock from disk. */
+    nread = read(dev, &bootblock_from_disk, sizeof(bootblock));
+    if(nread != sizeof(bootblock)) {
+	perror("bootblock read");
+	fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread);
+	exit(0);
+    }
+
+    /* Swap the bootblock's disklabel into the bootloader */
+    bootloader_image.bootblock_label = bootblock_from_disk.bootblock_label;
+
+    /* Calculate the bootblock checksum */
+    bootloader_image.bootblock_checksum = 0;
+    for(i = 0; i < 63; i++) {
+	bootloader_image.bootblock_checksum += 
+			bootloader_image.bootblock_quadwords[i];
+    }
+
+    /* Write the whole thing out! */
+    lseek(dev, 0L, SEEK_SET);
+    if(write(dev, &bootloader_image, sizeof(bootblock)) != sizeof(bootblock)) {
+	perror("bootblock write");
+	exit(0);
+    }
+
+    close(fd);
+    close(dev);
+    exit(0);
+}
+
+
diff --git a/arch/alpha/boot/tools/objstrip.c b/arch/alpha/boot/tools/objstrip.c
new file mode 100644
index 000000000..7cf92d172
--- /dev/null
+++ b/arch/alpha/boot/tools/objstrip.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/tools/objstrip.c
+ *
+ * Strip the object file headers/trailers from an executable (ELF or ECOFF).
+ *
+ * Copyright (C) 1996 David Mosberger-Tang.
+ */
+/*
+ * Converts an ECOFF or ELF object file into a bootable file.  The
+ * object file must be a OMAGIC file (i.e., data and bss follow immediately
+ * behind the text).  See DEC "Assembly Language Programmer's Guide"
+ * documentation for details.  The SRM boot process is documented in
+ * the Alpha AXP Architecture Reference Manual, Second Edition by
+ * Richard L. Sites and Richard T. Witek.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <linux/a.out.h>
+#include <linux/coff.h>
+#include <linux/param.h>
+#ifdef __ELF__
+# include <linux/elf.h>
+# define elfhdr elf64_hdr
+# define elf_phdr elf64_phdr
+# define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
+#endif
+
+/* bootfile size must be multiple of BLOCK_SIZE: */
+#define BLOCK_SIZE	512
+
+const char * prog_name;
+
+
+static void
+usage (void)
+{
+    fprintf(stderr,
+	    "usage: %s [-v] -p file primary\n"
+	    "       %s [-vb] file [secondary]\n", prog_name, prog_name);
+    exit(1);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+    size_t nwritten, tocopy, n, mem_size, fil_size, pad = 0;
+    int fd, ofd, i, j, verbose = 0, primary = 0;
+    char buf[8192], *inname;
+    struct exec * aout;		/* includes file & aout header */
+    long offset;
+#ifdef __ELF__
+    struct elfhdr *elf;
+    struct elf_phdr *elf_phdr;	/* program header */
+    unsigned long long e_entry;
+#endif
+
+    prog_name = argv[0];
+
+    for (i = 1; i < argc && argv[i][0] == '-'; ++i) {
+	for (j = 1; argv[i][j]; ++j) {
+	    switch (argv[i][j]) {
+	      case 'v':
+		  verbose = ~verbose;
+		  break;
+
+	      case 'b':
+		  pad = BLOCK_SIZE;
+		  break;
+
+	      case 'p':
+		  primary = 1;		/* make primary bootblock */
+		  break;
+	    }
+	}
+    }
+
+    if (i >= argc) {
+	usage();
+    }
+    inname = argv[i++];
+
+    fd = open(inname, O_RDONLY);
+    if (fd == -1) {
+	perror("open");
+	exit(1);
+    }
+
+    ofd = 1;
+    if (i < argc) {
+	ofd = open(argv[i++], O_WRONLY | O_CREAT | O_TRUNC, 0666);
+	if (ofd == -1) {
+	    perror("open");
+	    exit(1);
+	}
+    }
+
+    if (primary) {
+	/* generate bootblock for primary loader */
+	
+	unsigned long bb[64], sum = 0;
+	struct stat st;
+	off_t size;
+	int i;
+
+	if (ofd == 1) {
+	    usage();
+	}
+
+	if (fstat(fd, &st) == -1) {
+	    perror("fstat");
+	    exit(1);
+	}
+
+	size = (st.st_size + BLOCK_SIZE - 1) & ~(BLOCK_SIZE - 1);
+	memset(bb, 0, sizeof(bb));
+	strcpy((char *) bb, "Linux SRM bootblock");
+	bb[60] = size / BLOCK_SIZE;	/* count */
+	bb[61] = 1;			/* starting sector # */
+	bb[62] = 0;			/* flags---must be 0 */
+	for (i = 0; i < 63; ++i) {
+	    sum += bb[i];
+	}
+	bb[63] = sum;
+	if (write(ofd, bb, sizeof(bb)) != sizeof(bb)) {
+	    perror("boot-block write");
+	    exit(1);
+	}
+	printf("%lu\n", size);
+	return 0;
+    }
+
+    /* read and inspect exec header: */
+
+    if (read(fd, buf, sizeof(buf)) < 0) {
+	perror("read");
+	exit(1);
+    }
+
+#ifdef __ELF__
+    elf = (struct elfhdr *) buf;
+
+    if (memcmp(&elf->e_ident[EI_MAG0], ELFMAG, SELFMAG) == 0) {
+	if (elf->e_type != ET_EXEC) {
+	    fprintf(stderr, "%s: %s is not an ELF executable\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+	if (!elf_check_arch(elf)) {
+	    fprintf(stderr, "%s: is not for this processor (e_machine=%d)\n",
+		    prog_name, elf->e_machine);
+	    exit(1);
+	}
+	if (elf->e_phnum != 1) {
+	    fprintf(stderr,
+		    "%s: %d program headers (forgot to link with -N?)\n",
+		    prog_name, elf->e_phnum);
+	}
+
+	e_entry = elf->e_entry;
+
+	lseek(fd, elf->e_phoff, SEEK_SET);
+	if (read(fd, buf, sizeof(*elf_phdr)) != sizeof(*elf_phdr)) {
+	    perror("read");
+	    exit(1);
+	}
+
+	elf_phdr = (struct elf_phdr *) buf;
+	offset	 = elf_phdr->p_offset;
+	mem_size = elf_phdr->p_memsz;
+	fil_size = elf_phdr->p_filesz;
+
+	/* work around ELF bug: */
+	if (elf_phdr->p_vaddr < e_entry) {
+	    unsigned long delta = e_entry - elf_phdr->p_vaddr;
+	    offset   += delta;
+	    mem_size -= delta;
+	    fil_size -= delta;
+	    elf_phdr->p_vaddr += delta;
+	}
+
+	if (verbose) {
+	    fprintf(stderr, "%s: extracting %#016lx-%#016lx (at %lx)\n",
+		    prog_name, (long) elf_phdr->p_vaddr,
+		    elf_phdr->p_vaddr + fil_size, offset);
+	}
+    } else
+#endif
+    {
+	aout = (struct exec *) buf;
+
+	if (!(aout->fh.f_flags & COFF_F_EXEC)) {
+	    fprintf(stderr, "%s: %s is not in executable format\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+
+	if (aout->fh.f_opthdr != sizeof(aout->ah)) {
+	    fprintf(stderr, "%s: %s has unexpected optional header size\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+
+	if (N_MAGIC(*aout) != OMAGIC) {
+	    fprintf(stderr, "%s: %s is not an OMAGIC file\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+	offset = N_TXTOFF(*aout);
+	fil_size = aout->ah.tsize + aout->ah.dsize;
+	mem_size = fil_size + aout->ah.bsize;
+
+	if (verbose) {
+	    fprintf(stderr, "%s: extracting %#016lx-%#016lx (at %lx)\n",
+		    prog_name, aout->ah.text_start,
+		    aout->ah.text_start + fil_size, offset);
+	}
+    }
+
+    if (lseek(fd, offset, SEEK_SET) != offset) {
+	perror("lseek");
+	exit(1);
+    }
+
+    if (verbose) {
+	fprintf(stderr, "%s: copying %lu byte from %s\n",
+		prog_name, (unsigned long) fil_size, inname);
+    }
+
+    tocopy = fil_size;
+    while (tocopy > 0) {
+	n = tocopy;
+	if (n > sizeof(buf)) {
+	    n = sizeof(buf);
+	}
+	tocopy -= n;
+	if ((size_t) read(fd, buf, n) != n) {
+	    perror("read");
+	    exit(1);
+	}
+	do {
+	    nwritten = write(ofd, buf, n);
+	    if ((ssize_t) nwritten == -1) {
+		perror("write");
+		exit(1);
+	    }
+	    n -= nwritten;
+	} while (n > 0);
+    }
+
+    if (pad) {
+	mem_size = ((mem_size + pad - 1) / pad) * pad;
+    }
+
+    tocopy = mem_size - fil_size;
+    if (tocopy > 0) {
+	fprintf(stderr,
+		"%s: zero-filling bss and aligning to %lu with %lu bytes\n",
+		prog_name, pad, (unsigned long) tocopy);
+
+	memset(buf, 0x00, sizeof(buf));
+	do {
+	    n = tocopy;
+	    if (n > sizeof(buf)) {
+		n = sizeof(buf);
+	    }
+	    nwritten = write(ofd, buf, n);
+	    if ((ssize_t) nwritten == -1) {
+		perror("write");
+		exit(1);
+	    }
+	    tocopy -= nwritten;
+	} while (tocopy > 0);
+    }
+    return 0;
+}
diff --git a/arch/alpha/configs/defconfig b/arch/alpha/configs/defconfig
new file mode 100644
index 000000000..6a39fe8ce
--- /dev/null
+++ b/arch/alpha/configs/defconfig
@@ -0,0 +1,72 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_KALLSYMS_ALL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_VERBOSE_MCHECK=y
+CONFIG_SRM_ENV=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+# CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_VLAN_8021Q=m
+CONFIG_PNP=y
+CONFIG_ISAPNP=y
+CONFIG_BLK_DEV_FD=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_AIC7XXX=m
+CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
+# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
+CONFIG_ATA=y
+# CONFIG_SATA_PMP is not set
+CONFIG_PATA_ALI=y
+CONFIG_PATA_CMD64X=y
+CONFIG_PATA_CYPRESS=y
+CONFIG_ATA_GENERIC=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_NET_ETHERNET=y
+CONFIG_NET_VENDOR_3COM=y
+CONFIG_VORTEX=y
+CONFIG_NET_TULIP=y
+CONFIG_DE2104X=m
+CONFIG_TULIP=y
+CONFIG_TULIP_MMIO=y
+CONFIG_NET_PCI=y
+CONFIG_YELLOWFIN=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_CMOS=y
+CONFIG_EXT2_FS=y
+CONFIG_REISERFS_FS=m
+CONFIG_ISO9660_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=m
+CONFIG_NFS_V3=y
+CONFIG_NFSD=m
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_ALPHA_LEGACY_START_ADDRESS=y
+CONFIG_MATHEMU=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_DEVTMPFS=y
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
new file mode 100644
index 000000000..42911c834
--- /dev/null
+++ b/arch/alpha/include/asm/Kbuild
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+generated-y += syscall_table.h
+generic-y += export.h
+generic-y += kvm_para.h
+generic-y += mcs_spinlock.h
diff --git a/arch/alpha/include/asm/agp.h b/arch/alpha/include/asm/agp.h
new file mode 100644
index 000000000..7874f063d
--- /dev/null
+++ b/arch/alpha/include/asm/agp.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef AGP_H
+#define AGP_H 1
+
+#include <asm/io.h>
+
+/* dummy for now */
+
+#define map_page_into_agp(page)		do { } while (0)
+#define unmap_page_from_agp(page)	do { } while (0)
+#define flush_agp_cache() mb()
+
+/* GATT allocation. Returns/accepts GATT kernel virtual address. */
+#define alloc_gatt_pages(order)		\
+	((char *)__get_free_pages(GFP_KERNEL, (order)))
+#define free_gatt_pages(table, order)	\
+	free_pages((unsigned long)(table), (order))
+
+#endif
diff --git a/arch/alpha/include/asm/agp_backend.h b/arch/alpha/include/asm/agp_backend.h
new file mode 100644
index 000000000..271880240
--- /dev/null
+++ b/arch/alpha/include/asm/agp_backend.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_AGP_BACKEND_H
+#define _ALPHA_AGP_BACKEND_H 1
+
+typedef	union _alpha_agp_mode {
+	struct {
+		u32 rate : 3;
+		u32 reserved0 : 1;
+		u32 fw : 1;
+		u32 fourgb : 1;
+		u32 reserved1 : 2;
+		u32 enable : 1;
+		u32 sba : 1;
+		u32 reserved2 : 14;
+		u32 rq : 8;
+	} bits;
+	u32 lw;
+} alpha_agp_mode;
+
+typedef struct _alpha_agp_info {
+	struct pci_controller *hose;
+	struct {
+		dma_addr_t bus_base;
+		unsigned long size;
+		void *sysdata;
+	} aperture;
+	alpha_agp_mode capability;
+	alpha_agp_mode mode;
+	void *private;
+	struct alpha_agp_ops *ops;
+} alpha_agp_info;
+
+struct alpha_agp_ops {
+	int (*setup)(alpha_agp_info *);
+	void (*cleanup)(alpha_agp_info *);
+	int (*configure)(alpha_agp_info *);
+	int (*bind)(alpha_agp_info *, off_t, struct agp_memory *);
+	int (*unbind)(alpha_agp_info *, off_t, struct agp_memory *);
+	unsigned long (*translate)(alpha_agp_info *, dma_addr_t);
+};
+
+
+#endif /* _ALPHA_AGP_BACKEND_H */
diff --git a/arch/alpha/include/asm/asm-offsets.h b/arch/alpha/include/asm/asm-offsets.h
new file mode 100644
index 000000000..d370ee36a
--- /dev/null
+++ b/arch/alpha/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/alpha/include/asm/asm-prototypes.h b/arch/alpha/include/asm/asm-prototypes.h
new file mode 100644
index 000000000..c8ae46fc2
--- /dev/null
+++ b/arch/alpha/include/asm/asm-prototypes.h
@@ -0,0 +1,19 @@
+#include <linux/spinlock.h>
+
+#include <asm/checksum.h>
+#include <asm/console.h>
+#include <asm/page.h>
+#include <asm/string.h>
+#include <linux/uaccess.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+extern void __divl(void);
+extern void __reml(void);
+extern void __divq(void);
+extern void __remq(void);
+extern void __divlu(void);
+extern void __remlu(void);
+extern void __divqu(void);
+extern void __remqu(void);
+extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long, unsigned long , unsigned long);
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
new file mode 100644
index 000000000..f2861a43a
--- /dev/null
+++ b/arch/alpha/include/asm/atomic.h
@@ -0,0 +1,306 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_ATOMIC_H
+#define _ALPHA_ATOMIC_H
+
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc...
+ *
+ * But use these as seldom as possible since they are much slower
+ * than regular operations.
+ */
+
+/*
+ * To ensure dependency ordering is preserved for the _relaxed and
+ * _release atomics, an smp_mb() is unconditionally inserted into the
+ * _relaxed variants, which are used to build the barriered versions.
+ * Avoid redundant back-to-back fences in the _acquire and _fence
+ * versions.
+ */
+#define __atomic_acquire_fence()
+#define __atomic_post_full_fence()
+
+#define ATOMIC64_INIT(i)	{ (i) }
+
+#define arch_atomic_read(v)	READ_ONCE((v)->counter)
+#define arch_atomic64_read(v)	READ_ONCE((v)->counter)
+
+#define arch_atomic_set(v,i)	WRITE_ONCE((v)->counter, (i))
+#define arch_atomic64_set(v,i)	WRITE_ONCE((v)->counter, (i))
+
+/*
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ */
+
+#define ATOMIC_OP(op, asm_op)						\
+static __inline__ void arch_atomic_##op(int i, atomic_t * v)		\
+{									\
+	unsigned long temp;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %0,%1\n"						\
+	"	" #asm_op " %0,%2,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter)				\
+	:"Ir" (i), "m" (v->counter));					\
+}									\
+
+#define ATOMIC_OP_RETURN(op, asm_op)					\
+static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v)	\
+{									\
+	long temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %0,%1\n"						\
+	"	" #asm_op " %0,%3,%2\n"					\
+	"	" #asm_op " %0,%3,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC_FETCH_OP(op, asm_op)					\
+static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v)	\
+{									\
+	long temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %2,%1\n"						\
+	"	" #asm_op " %2,%3,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC64_OP(op, asm_op)						\
+static __inline__ void arch_atomic64_##op(s64 i, atomic64_t * v)	\
+{									\
+	s64 temp;							\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %0,%1\n"						\
+	"	" #asm_op " %0,%2,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter)				\
+	:"Ir" (i), "m" (v->counter));					\
+}									\
+
+#define ATOMIC64_OP_RETURN(op, asm_op)					\
+static __inline__ s64							\
+arch_atomic64_##op##_return_relaxed(s64 i, atomic64_t * v)		\
+{									\
+	s64 temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %0,%1\n"						\
+	"	" #asm_op " %0,%3,%2\n"					\
+	"	" #asm_op " %0,%3,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC64_FETCH_OP(op, asm_op)					\
+static __inline__ s64							\
+arch_atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v)		\
+{									\
+	s64 temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %2,%1\n"						\
+	"	" #asm_op " %2,%3,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC_OPS(op)							\
+	ATOMIC_OP(op, op##l)						\
+	ATOMIC_OP_RETURN(op, op##l)					\
+	ATOMIC_FETCH_OP(op, op##l)					\
+	ATOMIC64_OP(op, op##q)						\
+	ATOMIC64_OP_RETURN(op, op##q)					\
+	ATOMIC64_FETCH_OP(op, op##q)
+
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
+
+#define arch_atomic_add_return_relaxed		arch_atomic_add_return_relaxed
+#define arch_atomic_sub_return_relaxed		arch_atomic_sub_return_relaxed
+#define arch_atomic_fetch_add_relaxed		arch_atomic_fetch_add_relaxed
+#define arch_atomic_fetch_sub_relaxed		arch_atomic_fetch_sub_relaxed
+
+#define arch_atomic64_add_return_relaxed	arch_atomic64_add_return_relaxed
+#define arch_atomic64_sub_return_relaxed	arch_atomic64_sub_return_relaxed
+#define arch_atomic64_fetch_add_relaxed		arch_atomic64_fetch_add_relaxed
+#define arch_atomic64_fetch_sub_relaxed		arch_atomic64_fetch_sub_relaxed
+
+#define arch_atomic_andnot			arch_atomic_andnot
+#define arch_atomic64_andnot			arch_atomic64_andnot
+
+#undef ATOMIC_OPS
+#define ATOMIC_OPS(op, asm)						\
+	ATOMIC_OP(op, asm)						\
+	ATOMIC_FETCH_OP(op, asm)					\
+	ATOMIC64_OP(op, asm)						\
+	ATOMIC64_FETCH_OP(op, asm)
+
+ATOMIC_OPS(and, and)
+ATOMIC_OPS(andnot, bic)
+ATOMIC_OPS(or, bis)
+ATOMIC_OPS(xor, xor)
+
+#define arch_atomic_fetch_and_relaxed		arch_atomic_fetch_and_relaxed
+#define arch_atomic_fetch_andnot_relaxed	arch_atomic_fetch_andnot_relaxed
+#define arch_atomic_fetch_or_relaxed		arch_atomic_fetch_or_relaxed
+#define arch_atomic_fetch_xor_relaxed		arch_atomic_fetch_xor_relaxed
+
+#define arch_atomic64_fetch_and_relaxed		arch_atomic64_fetch_and_relaxed
+#define arch_atomic64_fetch_andnot_relaxed	arch_atomic64_fetch_andnot_relaxed
+#define arch_atomic64_fetch_or_relaxed		arch_atomic64_fetch_or_relaxed
+#define arch_atomic64_fetch_xor_relaxed		arch_atomic64_fetch_xor_relaxed
+
+#undef ATOMIC_OPS
+#undef ATOMIC64_FETCH_OP
+#undef ATOMIC64_OP_RETURN
+#undef ATOMIC64_OP
+#undef ATOMIC_FETCH_OP
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
+#define arch_atomic64_cmpxchg(v, old, new) \
+	(arch_cmpxchg(&((v)->counter), old, new))
+#define arch_atomic64_xchg(v, new) \
+	(arch_xchg(&((v)->counter), new))
+
+#define arch_atomic_cmpxchg(v, old, new) \
+	(arch_cmpxchg(&((v)->counter), old, new))
+#define arch_atomic_xchg(v, new) \
+	(arch_xchg(&((v)->counter), new))
+
+/**
+ * arch_atomic_fetch_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
+{
+	int c, new, old;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldl_l	%[old],%[mem]\n"
+	"	cmpeq	%[old],%[u],%[c]\n"
+	"	addl	%[old],%[a],%[new]\n"
+	"	bne	%[c],2f\n"
+	"	stl_c	%[new],%[mem]\n"
+	"	beq	%[new],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+	: [mem] "m"(*v), [a] "rI"(a), [u] "rI"((long)u)
+	: "memory");
+	smp_mb();
+	return old;
+}
+#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
+
+/**
+ * arch_atomic64_fetch_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
+{
+	s64 c, new, old;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldq_l	%[old],%[mem]\n"
+	"	cmpeq	%[old],%[u],%[c]\n"
+	"	addq	%[old],%[a],%[new]\n"
+	"	bne	%[c],2f\n"
+	"	stq_c	%[new],%[mem]\n"
+	"	beq	%[new],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+	: [mem] "m"(*v), [a] "rI"(a), [u] "rI"(u)
+	: "memory");
+	smp_mb();
+	return old;
+}
+#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
+
+/*
+ * arch_atomic64_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic_t
+ *
+ * The function returns the old value of *v minus 1, even if
+ * the atomic variable, v, was not decremented.
+ */
+static inline s64 arch_atomic64_dec_if_positive(atomic64_t *v)
+{
+	s64 old, tmp;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldq_l	%[old],%[mem]\n"
+	"	subq	%[old],1,%[tmp]\n"
+	"	ble	%[old],2f\n"
+	"	stq_c	%[tmp],%[mem]\n"
+	"	beq	%[tmp],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [tmp] "=&r"(tmp)
+	: [mem] "m"(*v)
+	: "memory");
+	smp_mb();
+	return old - 1;
+}
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
+
+#endif /* _ALPHA_ATOMIC_H */
diff --git a/arch/alpha/include/asm/barrier.h b/arch/alpha/include/asm/barrier.h
new file mode 100644
index 000000000..c56bfffc9
--- /dev/null
+++ b/arch/alpha/include/asm/barrier.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BARRIER_H
+#define __BARRIER_H
+
+#define mb()	__asm__ __volatile__("mb": : :"memory")
+#define rmb()	__asm__ __volatile__("mb": : :"memory")
+#define wmb()	__asm__ __volatile__("wmb": : :"memory")
+
+#define __smp_load_acquire(p)						\
+({									\
+	compiletime_assert_atomic_type(*p);				\
+	__READ_ONCE(*p);						\
+})
+
+#ifdef CONFIG_SMP
+#define __ASM_SMP_MB	"\tmb\n"
+#else
+#define __ASM_SMP_MB
+#endif
+
+#include <asm-generic/barrier.h>
+
+#endif		/* __BARRIER_H */
diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
new file mode 100644
index 000000000..bafb1c1f0
--- /dev/null
+++ b/arch/alpha/include/asm/bitops.h
@@ -0,0 +1,458 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BITOPS_H
+#define _ALPHA_BITOPS_H
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <asm/compiler.h>
+#include <asm/barrier.h>
+
+/*
+ * Copyright 1994, Linus Torvalds.
+ */
+
+/*
+ * These have to be done with inline assembly: that way the bit-setting
+ * is guaranteed to be atomic. All bit operations return 0 if the bit
+ * was cleared before the operation and != 0 if it was not.
+ *
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ *
+ * bit 0 is the LSB of addr; bit 64 is the LSB of (addr+1).
+ */
+
+static inline void
+set_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	bis %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m |= 1 << (nr & 31);
+}
+
+static inline void
+clear_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	bic %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+static inline void
+clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+	smp_mb();
+	clear_bit(nr, addr);
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m &= ~(1 << (nr & 31));
+}
+
+static inline void
+__clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+	smp_mb();
+	arch___clear_bit(nr, addr);
+}
+
+static inline void
+change_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	xor %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline void
+arch___change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m ^= 1 << (nr & 31);
+}
+
+static inline int
+test_and_set_bit(unsigned long nr, volatile void *addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	bne %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+static inline int
+test_and_set_bit_lock(unsigned long nr, volatile void *addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	bne %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old | mask;
+	return (old & mask) != 0;
+}
+
+static inline int
+test_and_clear_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	beq %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old & ~mask;
+	return (old & mask) != 0;
+}
+
+static inline int
+test_and_change_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __always_inline bool
+arch___test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old ^ mask;
+	return (old & mask) != 0;
+}
+
+#define arch_test_bit generic_test_bit
+#define arch_test_bit_acquire generic_test_bit_acquire
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ *
+ * Do a binary search on the bits.  Due to the nature of large
+ * constants on the alpha, it is worthwhile to split the search.
+ */
+static inline unsigned long ffz_b(unsigned long x)
+{
+	unsigned long sum, x1, x2, x4;
+
+	x = ~x & -~x;		/* set first 0 bit, clear others */
+	x1 = x & 0xAA;
+	x2 = x & 0xCC;
+	x4 = x & 0xF0;
+	sum = x2 ? 2 : 0;
+	sum += (x4 != 0) * 4;
+	sum += (x1 != 0);
+
+	return sum;
+}
+
+static inline unsigned long ffz(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+	/* Whee.  EV67 can calculate it directly.  */
+	return __kernel_cttz(~word);
+#else
+	unsigned long bits, qofs, bofs;
+
+	bits = __kernel_cmpbge(word, ~0UL);
+	qofs = ffz_b(bits);
+	bits = __kernel_extbl(word, qofs);
+	bofs = ffz_b(bits);
+
+	return qofs*8 + bofs;
+#endif
+}
+
+/*
+ * __ffs = Find First set bit in word.  Undefined if no set bit exists.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+	/* Whee.  EV67 can calculate it directly.  */
+	return __kernel_cttz(word);
+#else
+	unsigned long bits, qofs, bofs;
+
+	bits = __kernel_cmpbge(0, word);
+	qofs = ffz_b(bits);
+	bits = __kernel_extbl(word, qofs);
+	bofs = ffz_b(~bits);
+
+	return qofs*8 + bofs;
+#endif
+}
+
+#ifdef __KERNEL__
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above __ffs.
+ */
+
+static inline int ffs(int word)
+{
+	int result = __ffs(word) + 1;
+	return word ? result : 0;
+}
+
+/*
+ * fls: find last bit set.
+ */
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+static inline int fls64(unsigned long word)
+{
+	return 64 - __kernel_ctlz(word);
+}
+#else
+extern const unsigned char __flsm1_tab[256];
+
+static inline int fls64(unsigned long x)
+{
+	unsigned long t, a, r;
+
+	t = __kernel_cmpbge (x, 0x0101010101010101UL);
+	a = __flsm1_tab[t];
+	t = __kernel_extbl (x, a);
+	r = a*8 + __flsm1_tab[t] + (x != 0);
+
+	return r;
+}
+#endif
+
+static inline unsigned long __fls(unsigned long x)
+{
+	return fls64(x) - 1;
+}
+
+static inline int fls(unsigned int x)
+{
+	return fls64(x);
+}
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+/* Whee.  EV67 can calculate it directly.  */
+static inline unsigned long __arch_hweight64(unsigned long w)
+{
+	return __kernel_ctpop(w);
+}
+
+static inline unsigned int __arch_hweight32(unsigned int w)
+{
+	return __arch_hweight64(w);
+}
+
+static inline unsigned int __arch_hweight16(unsigned int w)
+{
+	return __arch_hweight64(w & 0xffff);
+}
+
+static inline unsigned int __arch_hweight8(unsigned int w)
+{
+	return __arch_hweight64(w & 0xff);
+}
+#else
+#include <asm-generic/bitops/arch_hweight.h>
+#endif
+
+#include <asm-generic/bitops/const_hweight.h>
+
+#endif /* __KERNEL__ */
+
+#ifdef __KERNEL__
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 100-bit bitmap.  It's guaranteed that at least
+ * one of the 100 bits is cleared.
+ */
+static inline unsigned long
+sched_find_first_bit(const unsigned long b[2])
+{
+	unsigned long b0, b1, ofs, tmp;
+
+	b0 = b[0];
+	b1 = b[1];
+	ofs = (b0 ? 0 : 64);
+	tmp = (b0 ? b0 : b1);
+
+	return __ffs(tmp) + ofs;
+}
+
+#include <asm-generic/bitops/non-instrumented-non-atomic.h>
+
+#include <asm-generic/bitops/le.h>
+
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _ALPHA_BITOPS_H */
diff --git a/arch/alpha/include/asm/bug.h b/arch/alpha/include/asm/bug.h
new file mode 100644
index 000000000..b88ebdfed
--- /dev/null
+++ b/arch/alpha/include/asm/bug.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BUG_H
+#define _ALPHA_BUG_H
+
+#include <linux/linkage.h>
+
+#ifdef CONFIG_BUG
+#include <asm/pal.h>
+
+/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
+   function loaded the GP, so this could fail in modules.  */
+#define BUG()	do {							\
+	__asm__ __volatile__(						\
+		"call_pal %0  # bugchk\n\t"				\
+		".long %1\n\t.8byte %2"					\
+		: : "i"(PAL_bugchk), "i"(__LINE__), "i"(__FILE__));	\
+	unreachable();							\
+  } while (0)
+
+#define HAVE_ARCH_BUG
+#endif
+
+#include <asm-generic/bug.h>
+
+#endif
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
new file mode 100644
index 000000000..6ce508c68
--- /dev/null
+++ b/arch/alpha/include/asm/cache.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/cache.h
+ */
+#ifndef __ARCH_ALPHA_CACHE_H
+#define __ARCH_ALPHA_CACHE_H
+
+
+/* Bytes per L1 (data) cache line. */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
+# define L1_CACHE_BYTES     64
+# define L1_CACHE_SHIFT     6
+#else
+/* Both EV4 and EV5 are write-through, read-allocate,
+   direct-mapped, physical.
+*/
+# define L1_CACHE_BYTES     32
+# define L1_CACHE_SHIFT     5
+#endif
+
+#define SMP_CACHE_BYTES    L1_CACHE_BYTES
+
+#endif
diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
new file mode 100644
index 000000000..9945ff483
--- /dev/null
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CACHEFLUSH_H
+#define _ALPHA_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/* Note that the following two definitions are _highly_ dependent
+   on the contexts in which they are used in the kernel.  I personally
+   think it is criminal how loosely defined these macros are.  */
+
+/* We need to flush the kernel's icache after loading modules.  The
+   only other use of this macro is in load_aout_interp which is not
+   used on Alpha. 
+
+   Note that this definition should *not* be used for userspace
+   icache flushing.  While functional, it is _way_ overkill.  The
+   icache is tagged with ASNs and it suffices to allocate a new ASN
+   for the process.  */
+#ifndef CONFIG_SMP
+#define flush_icache_range(start, end)		imb()
+#else
+#define flush_icache_range(start, end)		smp_imb()
+extern void smp_imb(void);
+#endif
+
+/* We need to flush the userspace icache after setting breakpoints in
+   ptrace.
+
+   Instead of indiscriminately using imb, take advantage of the fact
+   that icache entries are tagged with the ASN and load a new mm context.  */
+/* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */
+
+#ifndef CONFIG_SMP
+#include <linux/sched.h>
+
+extern void __load_new_mm_context(struct mm_struct *);
+static inline void
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+			unsigned long addr, int len)
+{
+	if (vma->vm_flags & VM_EXEC) {
+		struct mm_struct *mm = vma->vm_mm;
+		if (current->active_mm == mm)
+			__load_new_mm_context(mm);
+		else
+			mm->context[smp_processor_id()] = 0;
+	}
+}
+#define flush_icache_user_page flush_icache_user_page
+#else /* CONFIG_SMP */
+extern void flush_icache_user_page(struct vm_area_struct *vma,
+		struct page *page, unsigned long addr, int len);
+#define flush_icache_user_page flush_icache_user_page
+#endif /* CONFIG_SMP */
+
+/* This is used only in __do_fault and do_swap_page.  */
+#define flush_icache_page(vma, page) \
+	flush_icache_user_page((vma), (page), 0, 0)
+
+#include <asm-generic/cacheflush.h>
+
+#endif /* _ALPHA_CACHEFLUSH_H */
diff --git a/arch/alpha/include/asm/checksum.h b/arch/alpha/include/asm/checksum.h
new file mode 100644
index 000000000..99d631e14
--- /dev/null
+++ b/arch/alpha/include/asm/checksum.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CHECKSUM_H
+#define _ALPHA_CHECKSUM_H
+
+#include <linux/in6.h>
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum);
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum);
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+#define _HAVE_ARCH_CSUM_AND_COPY
+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len);
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len);
+
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+extern __sum16 ip_compute_csum(const void *buff, int len);
+
+/*
+ *	Fold a partial checksum without adding pseudo headers
+ */
+
+static inline __sum16 csum_fold(__wsum csum)
+{
+	u32 sum = (__force u32)csum;
+	sum = (sum & 0xffff) + (sum >> 16);
+	sum = (sum & 0xffff) + (sum >> 16);
+	return (__force __sum16)~sum;
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+			       const struct in6_addr *daddr,
+			       __u32 len, __u8 proto, __wsum sum);
+#endif
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
new file mode 100644
index 000000000..6e0a850aa
--- /dev/null
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CMPXCHG_H
+#define _ALPHA_CMPXCHG_H
+
+/*
+ * Atomic exchange routines.
+ */
+
+#define ____xchg(type, args...)		__xchg ## type ## _local(args)
+#define ____cmpxchg(type, args...)	__cmpxchg ## type ## _local(args)
+#include <asm/xchg.h>
+
+#define xchg_local(ptr, x)						\
+({									\
+	__typeof__(*(ptr)) _x_ = (x);					\
+	(__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_,	\
+				       sizeof(*(ptr)));			\
+})
+
+#define arch_cmpxchg_local(ptr, o, n)					\
+({									\
+	__typeof__(*(ptr)) _o_ = (o);					\
+	__typeof__(*(ptr)) _n_ = (n);					\
+	(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_,	\
+					  (unsigned long)_n_,		\
+					  sizeof(*(ptr)));		\
+})
+
+#define arch_cmpxchg64_local(ptr, o, n)					\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg_local((ptr), (o), (n));					\
+})
+
+#undef ____xchg
+#undef ____cmpxchg
+#define ____xchg(type, args...)		__xchg ##type(args)
+#define ____cmpxchg(type, args...)	__cmpxchg ##type(args)
+#include <asm/xchg.h>
+
+/*
+ * The leading and the trailing memory barriers guarantee that these
+ * operations are fully ordered.
+ */
+#define arch_xchg(ptr, x)						\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	__typeof__(*(ptr)) _x_ = (x);					\
+	smp_mb();							\
+	__ret = (__typeof__(*(ptr)))					\
+		__xchg((ptr), (unsigned long)_x_, sizeof(*(ptr)));	\
+	smp_mb();							\
+	__ret;								\
+})
+
+#define arch_cmpxchg(ptr, o, n)						\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	__typeof__(*(ptr)) _o_ = (o);					\
+	__typeof__(*(ptr)) _n_ = (n);					\
+	smp_mb();							\
+	__ret = (__typeof__(*(ptr))) __cmpxchg((ptr),			\
+		(unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\
+	smp_mb();							\
+	__ret;								\
+})
+
+#define arch_cmpxchg64(ptr, o, n)					\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	arch_cmpxchg((ptr), (o), (n));					\
+})
+
+#undef ____cmpxchg
+
+#endif /* _ALPHA_CMPXCHG_H */
diff --git a/arch/alpha/include/asm/compiler.h b/arch/alpha/include/asm/compiler.h
new file mode 100644
index 000000000..ae6459590
--- /dev/null
+++ b/arch/alpha/include/asm/compiler.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_COMPILER_H
+#define __ALPHA_COMPILER_H
+
+#include <uapi/asm/compiler.h>
+
+#endif /* __ALPHA_COMPILER_H */
diff --git a/arch/alpha/include/asm/console.h b/arch/alpha/include/asm/console.h
new file mode 100644
index 000000000..088b7b9eb
--- /dev/null
+++ b/arch/alpha/include/asm/console.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __AXP_CONSOLE_H
+#define __AXP_CONSOLE_H
+
+#include <uapi/asm/console.h>
+
+#ifndef __ASSEMBLY__
+extern long callback_puts(long unit, const char *s, long length);
+extern long callback_getc(long unit);
+extern long callback_open_console(void);
+extern long callback_close_console(void);
+extern long callback_open(const char *device, long length);
+extern long callback_close(long unit);
+extern long callback_read(long channel, long count, const char *buf, long lbn);
+extern long callback_getenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_setenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_save_env(void);
+
+extern int srm_fixup(unsigned long new_callback_addr,
+		     unsigned long new_hwrpb_addr);
+extern long srm_puts(const char *, long);
+extern long srm_printk(const char *, ...)
+	__attribute__ ((format (printf, 1, 2)));
+
+struct crb_struct;
+struct hwrpb_struct;
+extern int callback_init_done;
+extern void * callback_init(void *);
+#endif /* __ASSEMBLY__ */
+#endif /* __AXP_CONSOLE_H */
diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
new file mode 100644
index 000000000..69a2fc62c
--- /dev/null
+++ b/arch/alpha/include/asm/core_apecs.h
@@ -0,0 +1,534 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_APECS__H__
+#define __ALPHA_APECS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * APECS is the internal name for the 2107x chipset which provides
+ * memory controller and PCI access for the 21064 chip based systems.
+ *
+ * This file is based on:
+ *
+ * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
+ * Data Sheet
+ *
+ * EC-N0648-72
+ *
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+   An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
+   that get passed through the PCI<->ISA bridge chip. So we've gotta use
+   both windows to max out the physical memory we can DMA to. Sigh...
+
+   If we try a window at 0 for 1GB as a work-around, we run into conflicts
+   with ISA/PCI bus memory which can't be relocated, like VGA aperture and
+   BIOS ROMs. So we must put the windows high enough to avoid these areas.
+
+   We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
+   and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
+   Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
+   be used for that range (via virt_to_bus()).
+
+   Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
+   to keep virt_to_bus() from returning an address in the first window, for
+   a data area that goes beyond the 64Mb first DMA window.  Sigh...
+   The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
+   we can't just use that here, because of header file looping... :-(
+
+   Window 1 will be used for all DMA from the ISA bus; yes, that does
+   limit what memory an ISA floppy or sound card or Ethernet can touch, but
+   it's also a known limitation on other platforms as well. We use the
+   same technique that is used on INTEL platforms with similar limitation:
+   set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
+   We trust that any ISA bus device drivers will *always* ask for DMAable
+   memory explicitly via kmalloc()/get_free_pages() flags arguments.
+
+   Note that most PCI bus devices' drivers do *not* explicitly ask for
+   DMAable memory; they count on being able to DMA to any memory they
+   get from kmalloc()/get_free_pages(). They will also use window 1 for
+   any physical memory accesses below 64Mb; the rest will be handled by
+   window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
+
+   We hope that the area before the first window is large enough so that
+   there will be no overlap at the top end (64Mb). We *must* locate the
+   PCI cards' memory just below window 1, so that there's still the
+   possibility of being able to access it via SPARSE space. This is
+   important for cards such as the Matrox Millennium, whose Xserver
+   wants to access memory-mapped registers in byte and short lengths.
+
+   Note that the XL is treated differently from the AVANTI, even though
+   for most other things they are identical. It didn't seem reasonable to
+   make the AVANTI support pay for the limitations of the XL. It is true,
+   however, that an XL kernel will run on an AVANTI without problems.
+
+   %%% All of this should be obviated by the ability to route
+   everything through the iommu.
+*/
+
+/*
+ * 21071-DA Control and Status registers.
+ * These are used for PCI memory access.
+ */
+#define APECS_IOC_DCSR                  (IDENT_ADDR + 0x1A0000000UL)
+#define APECS_IOC_PEAR                  (IDENT_ADDR + 0x1A0000020UL)
+#define APECS_IOC_SEAR                  (IDENT_ADDR + 0x1A0000040UL)
+#define APECS_IOC_DR1                   (IDENT_ADDR + 0x1A0000060UL)
+#define APECS_IOC_DR2                   (IDENT_ADDR + 0x1A0000080UL)
+#define APECS_IOC_DR3                   (IDENT_ADDR + 0x1A00000A0UL)
+
+#define APECS_IOC_TB1R                  (IDENT_ADDR + 0x1A00000C0UL)
+#define APECS_IOC_TB2R                  (IDENT_ADDR + 0x1A00000E0UL)
+
+#define APECS_IOC_PB1R                  (IDENT_ADDR + 0x1A0000100UL)
+#define APECS_IOC_PB2R                  (IDENT_ADDR + 0x1A0000120UL)
+
+#define APECS_IOC_PM1R                  (IDENT_ADDR + 0x1A0000140UL)
+#define APECS_IOC_PM2R                  (IDENT_ADDR + 0x1A0000160UL)
+
+#define APECS_IOC_HAXR0                 (IDENT_ADDR + 0x1A0000180UL)
+#define APECS_IOC_HAXR1                 (IDENT_ADDR + 0x1A00001A0UL)
+#define APECS_IOC_HAXR2                 (IDENT_ADDR + 0x1A00001C0UL)
+
+#define APECS_IOC_PMLT                  (IDENT_ADDR + 0x1A00001E0UL)
+
+#define APECS_IOC_TLBTAG0               (IDENT_ADDR + 0x1A0000200UL)
+#define APECS_IOC_TLBTAG1               (IDENT_ADDR + 0x1A0000220UL)
+#define APECS_IOC_TLBTAG2               (IDENT_ADDR + 0x1A0000240UL)
+#define APECS_IOC_TLBTAG3               (IDENT_ADDR + 0x1A0000260UL)
+#define APECS_IOC_TLBTAG4               (IDENT_ADDR + 0x1A0000280UL)
+#define APECS_IOC_TLBTAG5               (IDENT_ADDR + 0x1A00002A0UL)
+#define APECS_IOC_TLBTAG6               (IDENT_ADDR + 0x1A00002C0UL)
+#define APECS_IOC_TLBTAG7               (IDENT_ADDR + 0x1A00002E0UL)
+
+#define APECS_IOC_TLBDATA0              (IDENT_ADDR + 0x1A0000300UL)
+#define APECS_IOC_TLBDATA1              (IDENT_ADDR + 0x1A0000320UL)
+#define APECS_IOC_TLBDATA2              (IDENT_ADDR + 0x1A0000340UL)
+#define APECS_IOC_TLBDATA3              (IDENT_ADDR + 0x1A0000360UL)
+#define APECS_IOC_TLBDATA4              (IDENT_ADDR + 0x1A0000380UL)
+#define APECS_IOC_TLBDATA5              (IDENT_ADDR + 0x1A00003A0UL)
+#define APECS_IOC_TLBDATA6              (IDENT_ADDR + 0x1A00003C0UL)
+#define APECS_IOC_TLBDATA7              (IDENT_ADDR + 0x1A00003E0UL)
+
+#define APECS_IOC_TBIA                  (IDENT_ADDR + 0x1A0000400UL)
+
+
+/*
+ * 21071-CA Control and Status registers.
+ * These are used to program memory timing,
+ *  configure memory and initialise the B-Cache.
+ */
+#define APECS_MEM_GCR		        (IDENT_ADDR + 0x180000000UL)
+#define APECS_MEM_EDSR		        (IDENT_ADDR + 0x180000040UL)
+#define APECS_MEM_TAR  		        (IDENT_ADDR + 0x180000060UL)
+#define APECS_MEM_ELAR		        (IDENT_ADDR + 0x180000080UL)
+#define APECS_MEM_EHAR  		(IDENT_ADDR + 0x1800000a0UL)
+#define APECS_MEM_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
+#define APECS_MEM_LDxLAR 		(IDENT_ADDR + 0x1800000e0UL)
+#define APECS_MEM_LDxHAR 		(IDENT_ADDR + 0x180000100UL)
+#define APECS_MEM_GTR    		(IDENT_ADDR + 0x180000200UL)
+#define APECS_MEM_RTR    		(IDENT_ADDR + 0x180000220UL)
+#define APECS_MEM_VFPR   		(IDENT_ADDR + 0x180000240UL)
+#define APECS_MEM_PDLDR  		(IDENT_ADDR + 0x180000260UL)
+#define APECS_MEM_PDhDR  		(IDENT_ADDR + 0x180000280UL)
+
+/* Bank x Base Address Register */
+#define APECS_MEM_B0BAR  		(IDENT_ADDR + 0x180000800UL)
+#define APECS_MEM_B1BAR  		(IDENT_ADDR + 0x180000820UL)
+#define APECS_MEM_B2BAR  		(IDENT_ADDR + 0x180000840UL)
+#define APECS_MEM_B3BAR  		(IDENT_ADDR + 0x180000860UL)
+#define APECS_MEM_B4BAR  		(IDENT_ADDR + 0x180000880UL)
+#define APECS_MEM_B5BAR  		(IDENT_ADDR + 0x1800008A0UL)
+#define APECS_MEM_B6BAR  		(IDENT_ADDR + 0x1800008C0UL)
+#define APECS_MEM_B7BAR  		(IDENT_ADDR + 0x1800008E0UL)
+#define APECS_MEM_B8BAR  		(IDENT_ADDR + 0x180000900UL)
+
+/* Bank x Configuration Register */
+#define APECS_MEM_B0BCR  		(IDENT_ADDR + 0x180000A00UL)
+#define APECS_MEM_B1BCR  		(IDENT_ADDR + 0x180000A20UL)
+#define APECS_MEM_B2BCR  		(IDENT_ADDR + 0x180000A40UL)
+#define APECS_MEM_B3BCR  		(IDENT_ADDR + 0x180000A60UL)
+#define APECS_MEM_B4BCR  		(IDENT_ADDR + 0x180000A80UL)
+#define APECS_MEM_B5BCR  		(IDENT_ADDR + 0x180000AA0UL)
+#define APECS_MEM_B6BCR  		(IDENT_ADDR + 0x180000AC0UL)
+#define APECS_MEM_B7BCR  		(IDENT_ADDR + 0x180000AE0UL)
+#define APECS_MEM_B8BCR  		(IDENT_ADDR + 0x180000B00UL)
+
+/* Bank x Timing Register A */
+#define APECS_MEM_B0TRA  		(IDENT_ADDR + 0x180000C00UL)
+#define APECS_MEM_B1TRA  		(IDENT_ADDR + 0x180000C20UL)
+#define APECS_MEM_B2TRA  		(IDENT_ADDR + 0x180000C40UL)
+#define APECS_MEM_B3TRA  		(IDENT_ADDR + 0x180000C60UL)
+#define APECS_MEM_B4TRA  		(IDENT_ADDR + 0x180000C80UL)
+#define APECS_MEM_B5TRA  		(IDENT_ADDR + 0x180000CA0UL)
+#define APECS_MEM_B6TRA  		(IDENT_ADDR + 0x180000CC0UL)
+#define APECS_MEM_B7TRA  		(IDENT_ADDR + 0x180000CE0UL)
+#define APECS_MEM_B8TRA  		(IDENT_ADDR + 0x180000D00UL)
+
+/* Bank x Timing Register B */
+#define APECS_MEM_B0TRB                 (IDENT_ADDR + 0x180000E00UL)
+#define APECS_MEM_B1TRB  		(IDENT_ADDR + 0x180000E20UL)
+#define APECS_MEM_B2TRB  		(IDENT_ADDR + 0x180000E40UL)
+#define APECS_MEM_B3TRB  		(IDENT_ADDR + 0x180000E60UL)
+#define APECS_MEM_B4TRB  		(IDENT_ADDR + 0x180000E80UL)
+#define APECS_MEM_B5TRB  		(IDENT_ADDR + 0x180000EA0UL)
+#define APECS_MEM_B6TRB  		(IDENT_ADDR + 0x180000EC0UL)
+#define APECS_MEM_B7TRB  		(IDENT_ADDR + 0x180000EE0UL)
+#define APECS_MEM_B8TRB  		(IDENT_ADDR + 0x180000F00UL)
+
+
+/*
+ * Memory spaces:
+ */
+#define APECS_IACK_SC		        (IDENT_ADDR + 0x1b0000000UL)
+#define APECS_CONF		        (IDENT_ADDR + 0x1e0000000UL)
+#define APECS_IO			(IDENT_ADDR + 0x1c0000000UL)
+#define APECS_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
+#define APECS_DENSE_MEM		        (IDENT_ADDR + 0x300000000UL)
+
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define APECS_IOC_STAT0_CMD		0xf
+#define APECS_IOC_STAT0_ERR		(1<<4)
+#define APECS_IOC_STAT0_LOST		(1<<5)
+#define APECS_IOC_STAT0_THIT		(1<<6)
+#define APECS_IOC_STAT0_TREF		(1<<7)
+#define APECS_IOC_STAT0_CODE_SHIFT	8
+#define APECS_IOC_STAT0_CODE_MASK	0x7
+#define APECS_IOC_STAT0_P_NBR_SHIFT	13
+#define APECS_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define APECS_HAE_ADDRESS		APECS_IOC_HAXR1
+
+
+/*
+ * Data structure for handling APECS machine checks:
+ */
+
+struct el_apecs_mikasa_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_base3;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long coma_cnfg3;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+
+	unsigned long pceb_vid;
+	unsigned long pceb_did;
+	unsigned long pceb_revision;
+	unsigned long pceb_command;
+	unsigned long pceb_status;
+	unsigned long pceb_latency;
+	unsigned long pceb_control;
+	unsigned long pceb_arbcon;
+	unsigned long pceb_arbpri;
+
+	unsigned long esc_id;
+	unsigned long esc_revision;
+	unsigned long esc_int0;
+	unsigned long esc_int1;
+	unsigned long esc_elcr0;
+	unsigned long esc_elcr1;
+	unsigned long esc_last_eisa;
+	unsigned long esc_nmi_stat;
+
+	unsigned long pci_ir;
+	unsigned long pci_imr;
+	unsigned long svr_mgr;
+};
+
+/* This for the normal APECS machines.  */
+struct el_apecs_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+};
+
+struct el_apecs_procdata
+{
+	unsigned long paltemp[32];  /* PAL TEMP REGS. */
+	/* EV4-specific fields */
+	unsigned long exc_addr;     /* Address of excepting instruction. */
+	unsigned long exc_sum;      /* Summary of arithmetic traps. */
+	unsigned long exc_mask;     /* Exception mask (from exc_sum). */
+	unsigned long iccsr;        /* IBox hardware enables. */
+	unsigned long pal_base;     /* Base address for PALcode. */
+	unsigned long hier;         /* Hardware Interrupt Enable. */
+	unsigned long hirr;         /* Hardware Interrupt Request. */
+	unsigned long csr;          /* D-stream fault info. */
+	unsigned long dc_stat;      /* D-cache status (ECC/Parity Err). */
+	unsigned long dc_addr;      /* EV3 Phys Addr for ECC/DPERR. */
+	unsigned long abox_ctl;     /* ABox Control Register. */
+	unsigned long biu_stat;     /* BIU Status. */
+	unsigned long biu_addr;     /* BUI Address. */
+	unsigned long biu_ctl;      /* BIU Control. */
+	unsigned long fill_syndrome;/* For correcting ECC errors. */
+	unsigned long fill_addr;    /* Cache block which was being read */
+	unsigned long va;           /* Effective VA of fault or miss. */
+	unsigned long bc_tag;       /* Backup Cache Tag Probe Results.*/
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the APECS machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here.  In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#define APECS_SET_HAE						\
+	do {							\
+		if (addr >= (1UL << 24)) {			\
+			unsigned long msb = addr & 0xf8000000;	\
+			addr -= msb;				\
+			set_hae(msb);				\
+		}						\
+	} while (0)
+
+__EXTERN_INLINE u8 apecs_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 apecs_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 apecs_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 apecs_ioread64(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	return *(vulp)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite64(u64 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	*(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + APECS_IO);
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
+					    unsigned long size)
+{
+	return (void __iomem *)(addr + APECS_DENSE_MEM);
+}
+
+__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x180000000UL;
+}
+
+__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= APECS_DENSE_MEM;
+}
+
+#undef APECS_SET_HAE
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		apecs
+#define apecs_trivial_io_bw	0
+#define apecs_trivial_io_lq	0
+#define apecs_trivial_rw_bw	2
+#define apecs_trivial_rw_lq	1
+#define apecs_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_APECS__H__ */
diff --git a/arch/alpha/include/asm/core_cia.h b/arch/alpha/include/asm/core_cia.h
new file mode 100644
index 000000000..d26bdfb7c
--- /dev/null
+++ b/arch/alpha/include/asm/core_cia.h
@@ -0,0 +1,517 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_CIA__H__
+#define __ALPHA_CIA__H__
+
+/* Define to experiment with fitting everything into one 512MB HAE window.  */
+#define CIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * CIA is the internal name for the 21171 chipset which provides
+ * memory controller and PCI access for the 21164 chip based systems.
+ * Also supported here is the 21172 (CIA-2) and 21174 (PYXIS).
+ *
+ * The lineage is a bit confused, since the 21174 was reportedly started
+ * from the 21171 Pass 1 mask, and so is missing bug fixes that appear
+ * in 21171 Pass 2 and 21172, but it also contains additional features.
+ *
+ * This file is based on:
+ *
+ * DECchip 21171 Core Logic Chipset
+ * Technical Reference Manual
+ *
+ * EC-QE18B-TE
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+ * CIA ADDRESS BIT DEFINITIONS
+ *
+ *  3333 3333 3322 2222 2222 1111 1111 11
+ *  9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  1                                             000
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  |                                             |\|
+ *  |                               Byte Enable --+ |
+ *  |                             Transfer Length --+
+ *  +-- IO space, not cached
+ *
+ *   Byte      Transfer
+ *   Enable    Length    Transfer  Byte    Address
+ *   adr<6:5>  adr<4:3>  Length    Enable  Adder
+ *   ---------------------------------------------
+ *      00        00      Byte      1110   0x000
+ *      01        00      Byte      1101   0x020
+ *      10        00      Byte      1011   0x040
+ *      11        00      Byte      0111   0x060
+ *
+ *      00        01      Word      1100   0x008
+ *      01        01      Word      1001   0x028 <= Not supported in this code.
+ *      10        01      Word      0011   0x048
+ *
+ *      00        10      Tribyte   1000   0x010
+ *      01        10      Tribyte   0001   0x030
+ *
+ *      10        11      Longword  0000   0x058
+ *
+ *      Note that byte enables are asserted low.
+ *
+ */
+
+#define CIA_MEM_R1_MASK 0x1fffffff  /* SPARSE Mem region 1 mask is 29 bits */
+#define CIA_MEM_R2_MASK 0x07ffffff  /* SPARSE Mem region 2 mask is 27 bits */
+#define CIA_MEM_R3_MASK 0x03ffffff  /* SPARSE Mem region 3 mask is 26 bits */
+
+/*
+ * 21171-CA Control and Status Registers
+ */
+#define CIA_IOC_CIA_REV			(IDENT_ADDR + 0x8740000080UL)
+#  define CIA_REV_MASK			0xff
+#define CIA_IOC_PCI_LAT			(IDENT_ADDR + 0x87400000C0UL)
+#define CIA_IOC_CIA_CTRL		(IDENT_ADDR + 0x8740000100UL)
+#  define CIA_CTRL_PCI_EN		(1 << 0)
+#  define CIA_CTRL_PCI_LOCK_EN		(1 << 1)
+#  define CIA_CTRL_PCI_LOOP_EN		(1 << 2)
+#  define CIA_CTRL_FST_BB_EN		(1 << 3)
+#  define CIA_CTRL_PCI_MST_EN		(1 << 4)
+#  define CIA_CTRL_PCI_MEM_EN		(1 << 5)
+#  define CIA_CTRL_PCI_REQ64_EN		(1 << 6)
+#  define CIA_CTRL_PCI_ACK64_EN		(1 << 7)
+#  define CIA_CTRL_ADDR_PE_EN		(1 << 8)
+#  define CIA_CTRL_PERR_EN		(1 << 9)
+#  define CIA_CTRL_FILL_ERR_EN		(1 << 10)
+#  define CIA_CTRL_MCHK_ERR_EN		(1 << 11)
+#  define CIA_CTRL_ECC_CHK_EN		(1 << 12)
+#  define CIA_CTRL_ASSERT_IDLE_BC	(1 << 13)
+#  define CIA_CTRL_COM_IDLE_BC		(1 << 14)
+#  define CIA_CTRL_CSR_IOA_BYPASS	(1 << 15)
+#  define CIA_CTRL_IO_FLUSHREQ_EN	(1 << 16)
+#  define CIA_CTRL_CPU_FLUSHREQ_EN	(1 << 17)
+#  define CIA_CTRL_ARB_CPU_EN		(1 << 18)
+#  define CIA_CTRL_EN_ARB_LINK		(1 << 19)
+#  define CIA_CTRL_RD_TYPE_SHIFT	20
+#  define CIA_CTRL_RL_TYPE_SHIFT	24
+#  define CIA_CTRL_RM_TYPE_SHIFT	28
+#  define CIA_CTRL_EN_DMA_RD_PERF	(1 << 31)
+#define CIA_IOC_CIA_CNFG		(IDENT_ADDR + 0x8740000140UL)
+#  define CIA_CNFG_IOA_BWEN		(1 << 0)
+#  define CIA_CNFG_PCI_MWEN		(1 << 4)
+#  define CIA_CNFG_PCI_DWEN		(1 << 5)
+#  define CIA_CNFG_PCI_WLEN		(1 << 8)
+#define CIA_IOC_FLASH_CTRL		(IDENT_ADDR + 0x8740000200UL)
+#define CIA_IOC_HAE_MEM			(IDENT_ADDR + 0x8740000400UL)
+#define CIA_IOC_HAE_IO			(IDENT_ADDR + 0x8740000440UL)
+#define CIA_IOC_CFG			(IDENT_ADDR + 0x8740000480UL)
+#define CIA_IOC_CACK_EN			(IDENT_ADDR + 0x8740000600UL)
+#  define CIA_CACK_EN_LOCK_EN		(1 << 0)
+#  define CIA_CACK_EN_MB_EN		(1 << 1)
+#  define CIA_CACK_EN_SET_DIRTY_EN	(1 << 2)
+#  define CIA_CACK_EN_BC_VICTIM_EN	(1 << 3)
+
+
+/*
+ * 21171-CA Diagnostic Registers
+ */
+#define CIA_IOC_CIA_DIAG		(IDENT_ADDR + 0x8740002000UL)
+#define CIA_IOC_DIAG_CHECK		(IDENT_ADDR + 0x8740003000UL)
+
+/*
+ * 21171-CA Performance Monitor registers
+ */
+#define CIA_IOC_PERF_MONITOR		(IDENT_ADDR + 0x8740004000UL)
+#define CIA_IOC_PERF_CONTROL		(IDENT_ADDR + 0x8740004040UL)
+
+/*
+ * 21171-CA Error registers
+ */
+#define CIA_IOC_CPU_ERR0		(IDENT_ADDR + 0x8740008000UL)
+#define CIA_IOC_CPU_ERR1		(IDENT_ADDR + 0x8740008040UL)
+#define CIA_IOC_CIA_ERR			(IDENT_ADDR + 0x8740008200UL)
+#  define CIA_ERR_COR_ERR		(1 << 0)
+#  define CIA_ERR_UN_COR_ERR		(1 << 1)
+#  define CIA_ERR_CPU_PE		(1 << 2)
+#  define CIA_ERR_MEM_NEM		(1 << 3)
+#  define CIA_ERR_PCI_SERR		(1 << 4)
+#  define CIA_ERR_PERR			(1 << 5)
+#  define CIA_ERR_PCI_ADDR_PE		(1 << 6)
+#  define CIA_ERR_RCVD_MAS_ABT		(1 << 7)
+#  define CIA_ERR_RCVD_TAR_ABT		(1 << 8)
+#  define CIA_ERR_PA_PTE_INV		(1 << 9)
+#  define CIA_ERR_FROM_WRT_ERR		(1 << 10)
+#  define CIA_ERR_IOA_TIMEOUT		(1 << 11)
+#  define CIA_ERR_LOST_CORR_ERR		(1 << 16)
+#  define CIA_ERR_LOST_UN_CORR_ERR	(1 << 17)
+#  define CIA_ERR_LOST_CPU_PE		(1 << 18)
+#  define CIA_ERR_LOST_MEM_NEM		(1 << 19)
+#  define CIA_ERR_LOST_PERR		(1 << 21)
+#  define CIA_ERR_LOST_PCI_ADDR_PE	(1 << 22)
+#  define CIA_ERR_LOST_RCVD_MAS_ABT	(1 << 23)
+#  define CIA_ERR_LOST_RCVD_TAR_ABT	(1 << 24)
+#  define CIA_ERR_LOST_PA_PTE_INV	(1 << 25)
+#  define CIA_ERR_LOST_FROM_WRT_ERR	(1 << 26)
+#  define CIA_ERR_LOST_IOA_TIMEOUT	(1 << 27)
+#  define CIA_ERR_VALID			(1 << 31)
+#define CIA_IOC_CIA_STAT		(IDENT_ADDR + 0x8740008240UL)
+#define CIA_IOC_ERR_MASK		(IDENT_ADDR + 0x8740008280UL)
+#define CIA_IOC_CIA_SYN			(IDENT_ADDR + 0x8740008300UL)
+#define CIA_IOC_MEM_ERR0		(IDENT_ADDR + 0x8740008400UL)
+#define CIA_IOC_MEM_ERR1		(IDENT_ADDR + 0x8740008440UL)
+#define CIA_IOC_PCI_ERR0		(IDENT_ADDR + 0x8740008800UL)
+#define CIA_IOC_PCI_ERR1		(IDENT_ADDR + 0x8740008840UL)
+#define CIA_IOC_PCI_ERR3		(IDENT_ADDR + 0x8740008880UL)
+
+/*
+ * 21171-CA System configuration registers
+ */
+#define CIA_IOC_MCR			(IDENT_ADDR + 0x8750000000UL)
+#define CIA_IOC_MBA0			(IDENT_ADDR + 0x8750000600UL)
+#define CIA_IOC_MBA2			(IDENT_ADDR + 0x8750000680UL)
+#define CIA_IOC_MBA4			(IDENT_ADDR + 0x8750000700UL)
+#define CIA_IOC_MBA6			(IDENT_ADDR + 0x8750000780UL)
+#define CIA_IOC_MBA8			(IDENT_ADDR + 0x8750000800UL)
+#define CIA_IOC_MBAA			(IDENT_ADDR + 0x8750000880UL)
+#define CIA_IOC_MBAC			(IDENT_ADDR + 0x8750000900UL)
+#define CIA_IOC_MBAE			(IDENT_ADDR + 0x8750000980UL)
+#define CIA_IOC_TMG0			(IDENT_ADDR + 0x8750000B00UL)
+#define CIA_IOC_TMG1			(IDENT_ADDR + 0x8750000B40UL)
+#define CIA_IOC_TMG2			(IDENT_ADDR + 0x8750000B80UL)
+
+/*
+ * 2117A-CA PCI Address and Scatter-Gather Registers.
+ */
+#define CIA_IOC_PCI_TBIA		(IDENT_ADDR + 0x8760000100UL)
+
+#define CIA_IOC_PCI_W0_BASE		(IDENT_ADDR + 0x8760000400UL)
+#define CIA_IOC_PCI_W0_MASK		(IDENT_ADDR + 0x8760000440UL)
+#define CIA_IOC_PCI_T0_BASE		(IDENT_ADDR + 0x8760000480UL)
+
+#define CIA_IOC_PCI_W1_BASE		(IDENT_ADDR + 0x8760000500UL)
+#define CIA_IOC_PCI_W1_MASK		(IDENT_ADDR + 0x8760000540UL)
+#define CIA_IOC_PCI_T1_BASE		(IDENT_ADDR + 0x8760000580UL)
+
+#define CIA_IOC_PCI_W2_BASE		(IDENT_ADDR + 0x8760000600UL)
+#define CIA_IOC_PCI_W2_MASK		(IDENT_ADDR + 0x8760000640UL)
+#define CIA_IOC_PCI_T2_BASE		(IDENT_ADDR + 0x8760000680UL)
+
+#define CIA_IOC_PCI_W3_BASE		(IDENT_ADDR + 0x8760000700UL)
+#define CIA_IOC_PCI_W3_MASK		(IDENT_ADDR + 0x8760000740UL)
+#define CIA_IOC_PCI_T3_BASE		(IDENT_ADDR + 0x8760000780UL)
+
+#define CIA_IOC_PCI_Wn_BASE(N)	(IDENT_ADDR + 0x8760000400UL + (N)*0x100) 
+#define CIA_IOC_PCI_Wn_MASK(N)	(IDENT_ADDR + 0x8760000440UL + (N)*0x100) 
+#define CIA_IOC_PCI_Tn_BASE(N)	(IDENT_ADDR + 0x8760000480UL + (N)*0x100) 
+
+#define CIA_IOC_PCI_W_DAC		(IDENT_ADDR + 0x87600007C0UL)
+
+/*
+ * 2117A-CA Address Translation Registers.
+ */
+
+/* 8 tag registers, the first 4 of which are lockable.  */
+#define CIA_IOC_TB_TAGn(n) \
+	(IDENT_ADDR + 0x8760000800UL + (n)*0x40)
+
+/* 4 page registers per tag register.  */
+#define CIA_IOC_TBn_PAGEm(n,m) \
+	(IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40)
+
+/*
+ * Memory spaces:
+ */
+#define CIA_IACK_SC			(IDENT_ADDR + 0x8720000000UL)
+#define CIA_CONF			(IDENT_ADDR + 0x8700000000UL)
+#define CIA_IO				(IDENT_ADDR + 0x8580000000UL)
+#define CIA_SPARSE_MEM			(IDENT_ADDR + 0x8000000000UL)
+#define CIA_SPARSE_MEM_R2		(IDENT_ADDR + 0x8400000000UL)
+#define CIA_SPARSE_MEM_R3		(IDENT_ADDR + 0x8500000000UL)
+#define CIA_DENSE_MEM		        (IDENT_ADDR + 0x8600000000UL)
+#define CIA_BW_MEM			(IDENT_ADDR + 0x8800000000UL)
+#define CIA_BW_IO			(IDENT_ADDR + 0x8900000000UL)
+#define CIA_BW_CFG_0			(IDENT_ADDR + 0x8a00000000UL)
+#define CIA_BW_CFG_1			(IDENT_ADDR + 0x8b00000000UL)
+
+/*
+ * ALCOR's GRU ASIC registers
+ */
+#define GRU_INT_REQ			(IDENT_ADDR + 0x8780000000UL)
+#define GRU_INT_MASK			(IDENT_ADDR + 0x8780000040UL)
+#define GRU_INT_EDGE			(IDENT_ADDR + 0x8780000080UL)
+#define GRU_INT_HILO			(IDENT_ADDR + 0x87800000C0UL)
+#define GRU_INT_CLEAR			(IDENT_ADDR + 0x8780000100UL)
+
+#define GRU_CACHE_CNFG			(IDENT_ADDR + 0x8780000200UL)
+#define GRU_SCR				(IDENT_ADDR + 0x8780000300UL)
+#define GRU_LED				(IDENT_ADDR + 0x8780000800UL)
+#define GRU_RESET			(IDENT_ADDR + 0x8780000900UL)
+
+#define ALCOR_GRU_INT_REQ_BITS		0x800fffffUL
+#define XLT_GRU_INT_REQ_BITS		0x80003fffUL
+#define GRU_INT_REQ_BITS		(alpha_mv.sys.cia.gru_int_req_bits+0)
+
+/*
+ * PYXIS interrupt control registers
+ */
+#define PYXIS_INT_REQ			(IDENT_ADDR + 0x87A0000000UL)
+#define PYXIS_INT_MASK			(IDENT_ADDR + 0x87A0000040UL)
+#define PYXIS_INT_HILO			(IDENT_ADDR + 0x87A00000C0UL)
+#define PYXIS_INT_ROUTE			(IDENT_ADDR + 0x87A0000140UL)
+#define PYXIS_GPO			(IDENT_ADDR + 0x87A0000180UL)
+#define PYXIS_INT_CNFG			(IDENT_ADDR + 0x87A00001C0UL)
+#define PYXIS_RT_COUNT			(IDENT_ADDR + 0x87A0000200UL)
+#define PYXIS_INT_TIME			(IDENT_ADDR + 0x87A0000240UL)
+#define PYXIS_IIC_CTRL			(IDENT_ADDR + 0x87A00002C0UL)
+#define PYXIS_RESET			(IDENT_ADDR + 0x8780000900UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define PYXIS_DAC_OFFSET		(1UL << 40)
+
+/*
+ * Data structure for handling CIA machine checks.
+ */
+
+/* System-specific info.  */
+struct el_CIA_sysdata_mcheck {
+	unsigned long	cpu_err0;
+	unsigned long	cpu_err1;
+	unsigned long	cia_err;
+	unsigned long	cia_stat;
+	unsigned long	err_mask;
+	unsigned long	cia_syn;
+	unsigned long	mem_err0;
+	unsigned long	mem_err1;
+	unsigned long	pci_err0;
+	unsigned long	pci_err1;
+	unsigned long	pci_err2;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+/* Do not touch, this should *NOT* be static inline */
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * CIA (the 2117x PCI/memory support chipset for the EV5 (21164)
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+/*
+ * Memory functions.  64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+__EXTERN_INLINE u8 cia_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x00;
+	else
+		base_and_type = CIA_IO + 0x00;
+
+	/* We can use CIA_MEM_R1_MASK for io ports too, since it is large
+	   enough to cover all io ports, and smaller than CIA_IO.  */
+	addr &= CIA_MEM_R1_MASK;
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x00;
+	else
+		base_and_type = CIA_IO + 0x00;
+
+	addr &= CIA_MEM_R1_MASK;
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 cia_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x08;
+	else
+		base_and_type = CIA_IO + 0x08;
+
+	addr &= CIA_MEM_R1_MASK;
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x08;
+	else
+		base_and_type = CIA_IO + 0x08;
+
+	addr &= CIA_MEM_R1_MASK;
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 cia_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 cia_ioread64(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	return *(vulp)addr;
+}
+
+__EXTERN_INLINE void cia_iowrite64(u64 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	*(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + CIA_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr,
+					  unsigned long size)
+{
+	return (void __iomem *)(addr + CIA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int cia_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= CIA_DENSE_MEM;
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + CIA_BW_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr,
+					      unsigned long size)
+{
+	return (void __iomem *)(addr + CIA_BW_MEM);
+}
+
+__EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr < CIA_BW_IO;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		cia
+#define cia_trivial_rw_bw	2
+#define cia_trivial_rw_lq	1
+#define cia_trivial_io_bw	0
+#define cia_trivial_io_lq	0
+#define cia_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		cia_bwx
+#define cia_bwx_trivial_rw_bw	1
+#define cia_bwx_trivial_rw_lq	1
+#define cia_bwx_trivial_io_bw	1
+#define cia_bwx_trivial_io_lq	1
+#define cia_bwx_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#ifdef CONFIG_ALPHA_PYXIS
+#define __IO_PREFIX		cia_bwx
+#else
+#define __IO_PREFIX		cia
+#endif
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_CIA__H__ */
diff --git a/arch/alpha/include/asm/core_irongate.h b/arch/alpha/include/asm/core_irongate.h
new file mode 100644
index 000000000..1c8906bf7
--- /dev/null
+++ b/arch/alpha/include/asm/core_irongate.h
@@ -0,0 +1,233 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRONGATE__H__
+#define __ALPHA_IRONGATE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * IRONGATE is the internal name for the AMD-751 K7 core logic chipset
+ * which provides memory controller and PCI access for NAUTILUS-based
+ * EV6 (21264) systems.
+ *
+ * This file is based on:
+ *
+ * IronGate management library, (c) 1999 Alpha Processor, Inc.
+ * Copyright (C) 1999 Alpha Processor, Inc.,
+ *	(David Daniel, Stig Telfer, Soohoon Lee)
+ */
+
+/*
+ * The 21264 supports, and internally recognizes, a 44-bit physical
+ * address space that is divided equally between memory address space
+ * and I/O address space. Memory address space resides in the lower
+ * half of the physical address space (PA[43]=0) and I/O address space
+ * resides in the upper half of the physical address space (PA[43]=1).
+ */
+
+/*
+ * Irongate CSR map.  Some of the CSRs are 8 or 16 bits, but all access
+ * through the routines given is 32-bit.
+ *
+ * The first 0x40 bytes are standard as per the PCI spec.
+ */
+
+typedef volatile __u32	igcsr32;
+
+typedef struct {
+	igcsr32 dev_vendor;		/* 0x00 - device ID, vendor ID */
+	igcsr32 stat_cmd;		/* 0x04 - status, command */
+	igcsr32 class;			/* 0x08 - class code, rev ID */
+	igcsr32 latency;		/* 0x0C - header type, PCI latency */
+	igcsr32 bar0;			/* 0x10 - BAR0 - AGP */
+	igcsr32 bar1;			/* 0x14 - BAR1 - GART */
+	igcsr32 bar2;			/* 0x18 - Power Management reg block */
+
+	igcsr32 rsrvd0[6];		/* 0x1C-0x33 reserved */
+
+	igcsr32 capptr;			/* 0x34 - Capabilities pointer */
+
+	igcsr32 rsrvd1[2];		/* 0x38-0x3F reserved */
+
+	igcsr32 bacsr10;		/* 0x40 - base address chip selects */
+	igcsr32 bacsr32;		/* 0x44 - base address chip selects */
+	igcsr32 bacsr54_eccms761;	/* 0x48 - 751: base addr. chip selects
+						  761: ECC, mode/status */
+
+	igcsr32 rsrvd2[1];		/* 0x4C-0x4F reserved */
+
+	igcsr32 drammap;		/* 0x50 - address mapping control */
+	igcsr32 dramtm;			/* 0x54 - timing, driver strength */
+	igcsr32 dramms;			/* 0x58 - DRAM mode/status */
+
+	igcsr32 rsrvd3[1];		/* 0x5C-0x5F reserved */
+
+	igcsr32 biu0;			/* 0x60 - bus interface unit */
+	igcsr32 biusip;			/* 0x64 - Serial initialisation pkt */
+
+	igcsr32 rsrvd4[2];		/* 0x68-0x6F reserved */
+
+	igcsr32 mro;			/* 0x70 - memory request optimiser */
+
+	igcsr32 rsrvd5[3];		/* 0x74-0x7F reserved */
+
+	igcsr32 whami;			/* 0x80 - who am I */
+	igcsr32 pciarb;			/* 0x84 - PCI arbitration control */
+	igcsr32 pcicfg;			/* 0x88 - PCI config status */
+
+	igcsr32 rsrvd6[4];		/* 0x8C-0x9B reserved */
+
+	igcsr32 pci_mem;		/* 0x9C - PCI top of memory,
+						  761 only */
+
+	/* AGP (bus 1) control registers */
+	igcsr32 agpcap;			/* 0xA0 - AGP Capability Identifier */
+	igcsr32 agpstat;		/* 0xA4 - AGP status register */
+	igcsr32 agpcmd;			/* 0xA8 - AGP control register */
+	igcsr32 agpva;			/* 0xAC - AGP Virtual Address Space */
+	igcsr32 agpmode;		/* 0xB0 - AGP/GART mode control */
+} Irongate0;
+
+
+typedef struct {
+
+	igcsr32 dev_vendor;		/* 0x00 - Device and Vendor IDs */
+	igcsr32 stat_cmd;		/* 0x04 - Status and Command regs */
+	igcsr32 class;			/* 0x08 - subclass, baseclass etc */
+	igcsr32 htype;			/* 0x0C - header type (at 0x0E) */
+	igcsr32 rsrvd0[2];		/* 0x10-0x17 reserved */
+	igcsr32 busnos;			/* 0x18 - Primary, secondary bus nos */
+	igcsr32 io_baselim_regs;	/* 0x1C - IO base, IO lim, AGP status */
+	igcsr32	mem_baselim;		/* 0x20 - memory base, memory lim */
+	igcsr32 pfmem_baselim;		/* 0x24 - prefetchable base, lim */
+	igcsr32 rsrvd1[2];		/* 0x28-0x2F reserved */
+	igcsr32 io_baselim;		/* 0x30 - IO base, IO limit */
+	igcsr32 rsrvd2[2];		/* 0x34-0x3B - reserved */
+	igcsr32 interrupt;		/* 0x3C - interrupt, PCI bridge ctrl */
+
+} Irongate1;
+
+extern igcsr32 *IronECC;
+
+/*
+ * Memory spaces:
+ */
+
+/* Irongate is consistent with a subset of the Tsunami memory map */
+#ifdef USE_48_BIT_KSEG
+#define IRONGATE_BIAS 0x80000000000UL
+#else
+#define IRONGATE_BIAS 0x10000000000UL
+#endif
+
+
+#define IRONGATE_MEM		(IDENT_ADDR | IRONGATE_BIAS | 0x000000000UL)
+#define IRONGATE_IACK_SC	(IDENT_ADDR | IRONGATE_BIAS | 0x1F8000000UL)
+#define IRONGATE_IO		(IDENT_ADDR | IRONGATE_BIAS | 0x1FC000000UL)
+#define IRONGATE_CONF		(IDENT_ADDR | IRONGATE_BIAS | 0x1FE000000UL)
+
+/*
+ * PCI Configuration space accesses are formed like so:
+ *
+ * 0x1FE << 24 |  : 2 2 2 2 1 1 1 1 : 1 1 1 1 1 1 0 0 : 0 0 0 0 0 0 0 0 :
+ *                : 3 2 1 0 9 8 7 6 : 5 4 3 2 1 0 9 8 : 7 6 5 4 3 2 1 0 :
+ *                  ---bus numer---   -device-- -fun-   ---register----
+ */
+
+#define IGCSR(dev,fun,reg)	( IRONGATE_CONF | \
+				((dev)<<11) | \
+				((fun)<<8) | \
+				(reg) )
+
+#define IRONGATE0		((Irongate0 *) IGCSR(0, 0, 0))
+#define IRONGATE1		((Irongate1 *) IGCSR(1, 0, 0))
+
+/*
+ * Data structure for handling IRONGATE machine checks:
+ * This is the standard OSF logout frame
+ */
+
+#define SCB_Q_SYSERR	0x620			/* OSF definitions */
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+
+struct el_IRONGATE_sysdata_mcheck {
+	__u32 FrameSize;                 /* Bytes, including this field */
+	__u32 FrameFlags;                /* <31> = Retry, <30> = Second Error */
+	__u32 CpuOffset;                 /* Offset to CPU-specific into */
+	__u32 SystemOffset;              /* Offset to system-specific info */
+	__u32 MCHK_Code;
+	__u32 MCHK_Frame_Rev;
+	__u64 I_STAT;
+	__u64 DC_STAT;
+	__u64 C_ADDR;
+	__u64 DC1_SYNDROME;
+	__u64 DC0_SYNDROME;
+	__u64 C_STAT;
+	__u64 C_STS;
+	__u64 RESERVED0;
+	__u64 EXC_ADDR;
+	__u64 IER_CM;
+	__u64 ISUM;
+	__u64 MM_STAT;
+	__u64 PAL_BASE;
+	__u64 I_CTL;
+	__u64 PCTX;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * IRONGATE (AMD-751) PCI/memory support chip for the EV6 (21264) and
+ * K7 can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  All accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *irongate_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + IRONGATE_IO);
+}
+
+extern void __iomem *irongate_ioremap(unsigned long addr, unsigned long size);
+extern void irongate_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int irongate_is_ioaddr(unsigned long addr)
+{
+	return addr >= IRONGATE_MEM;
+}
+
+__EXTERN_INLINE int irongate_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+	return addr < IRONGATE_IO || addr >= IRONGATE_CONF;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX			irongate
+#define irongate_trivial_rw_bw		1
+#define irongate_trivial_rw_lq		1
+#define irongate_trivial_io_bw		1
+#define irongate_trivial_io_lq		1
+#define irongate_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IRONGATE__H__ */
diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h
new file mode 100644
index 000000000..d8c3e72ef
--- /dev/null
+++ b/arch/alpha/include/asm/core_lca.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_LCA__H__
+#define __ALPHA_LCA__H__
+
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * Low Cost Alpha (LCA) definitions (these apply to 21066 and 21068,
+ * for example).
+ *
+ * This file is based on:
+ *
+ *	DECchip 21066 and DECchip 21068 Alpha AXP Microprocessors
+ *	Hardware Reference Manual; Digital Equipment Corp.; May 1994;
+ *	Maynard, MA; Order Number: EC-N2681-71.
+ */
+
+/*
+ * NOTE: The LCA uses a Host Address Extension (HAE) register to access
+ *	 PCI addresses that are beyond the first 27 bits of address
+ *	 space.  Updating the HAE requires an external cycle (and
+ *	 a memory barrier), which tends to be slow.  Instead of updating
+ *	 it on each sparse memory access, we keep the current HAE value
+ *	 cached in variable cache_hae.  Only if the cached HAE differs
+ *	 from the desired HAE value do we actually updated HAE register.
+ *	 The HAE register is preserved by the interrupt handler entry/exit
+ *	 code, so this scheme works even in the presence of interrupts.
+ *
+ * Dense memory space doesn't require the HAE, but is restricted to
+ * aligned 32 and 64 bit accesses.  Special Cycle and Interrupt
+ * Acknowledge cycles may also require the use of the HAE.  The LCA
+ * limits I/O address space to the bottom 24 bits of address space,
+ * but this easily covers the 16 bit ISA I/O address space.
+ */
+
+/*
+ * NOTE 2! The memory operations do not set any memory barriers, as
+ * it's not needed for cases like a frame buffer that is essentially
+ * memory-like.  You need to do them by hand if the operations depend
+ * on ordering.
+ *
+ * Similarly, the port I/O operations do a "mb" only after a write
+ * operation: if an mb is needed before (as in the case of doing
+ * memory mapped I/O first, and then a port I/O operation to the same
+ * device), it needs to be done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do
+ * the mb all the time, but right now I'm hoping this will work out.
+ * Avoiding mb's may potentially be a noticeable speed improvement,
+ * but I can't honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to
+ * non-interrupts is another fun race area.  Don't do it (because if
+ * you do, I'll have to do *everything* with interrupts disabled,
+ * ugh).
+ */
+
+/*
+ * Memory Controller registers:
+ */
+#define LCA_MEM_BCR0		(IDENT_ADDR + 0x120000000UL)
+#define LCA_MEM_BCR1		(IDENT_ADDR + 0x120000008UL)
+#define LCA_MEM_BCR2		(IDENT_ADDR + 0x120000010UL)
+#define LCA_MEM_BCR3		(IDENT_ADDR + 0x120000018UL)
+#define LCA_MEM_BMR0		(IDENT_ADDR + 0x120000020UL)
+#define LCA_MEM_BMR1		(IDENT_ADDR + 0x120000028UL)
+#define LCA_MEM_BMR2		(IDENT_ADDR + 0x120000030UL)
+#define LCA_MEM_BMR3		(IDENT_ADDR + 0x120000038UL)
+#define LCA_MEM_BTR0		(IDENT_ADDR + 0x120000040UL)
+#define LCA_MEM_BTR1		(IDENT_ADDR + 0x120000048UL)
+#define LCA_MEM_BTR2		(IDENT_ADDR + 0x120000050UL)
+#define LCA_MEM_BTR3		(IDENT_ADDR + 0x120000058UL)
+#define LCA_MEM_GTR		(IDENT_ADDR + 0x120000060UL)
+#define LCA_MEM_ESR		(IDENT_ADDR + 0x120000068UL)
+#define LCA_MEM_EAR		(IDENT_ADDR + 0x120000070UL)
+#define LCA_MEM_CAR		(IDENT_ADDR + 0x120000078UL)
+#define LCA_MEM_VGR		(IDENT_ADDR + 0x120000080UL)
+#define LCA_MEM_PLM		(IDENT_ADDR + 0x120000088UL)
+#define LCA_MEM_FOR		(IDENT_ADDR + 0x120000090UL)
+
+/*
+ * I/O Controller registers:
+ */
+#define LCA_IOC_HAE		(IDENT_ADDR + 0x180000000UL)
+#define LCA_IOC_CONF		(IDENT_ADDR + 0x180000020UL)
+#define LCA_IOC_STAT0		(IDENT_ADDR + 0x180000040UL)
+#define LCA_IOC_STAT1		(IDENT_ADDR + 0x180000060UL)
+#define LCA_IOC_TBIA		(IDENT_ADDR + 0x180000080UL)
+#define LCA_IOC_TB_ENA		(IDENT_ADDR + 0x1800000a0UL)
+#define LCA_IOC_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
+#define LCA_IOC_PAR_DIS		(IDENT_ADDR + 0x1800000e0UL)
+#define LCA_IOC_W_BASE0		(IDENT_ADDR + 0x180000100UL)
+#define LCA_IOC_W_BASE1		(IDENT_ADDR + 0x180000120UL)
+#define LCA_IOC_W_MASK0		(IDENT_ADDR + 0x180000140UL)
+#define LCA_IOC_W_MASK1		(IDENT_ADDR + 0x180000160UL)
+#define LCA_IOC_T_BASE0		(IDENT_ADDR + 0x180000180UL)
+#define LCA_IOC_T_BASE1		(IDENT_ADDR + 0x1800001a0UL)
+#define LCA_IOC_TB_TAG0		(IDENT_ADDR + 0x188000000UL)
+#define LCA_IOC_TB_TAG1		(IDENT_ADDR + 0x188000020UL)
+#define LCA_IOC_TB_TAG2		(IDENT_ADDR + 0x188000040UL)
+#define LCA_IOC_TB_TAG3		(IDENT_ADDR + 0x188000060UL)
+#define LCA_IOC_TB_TAG4		(IDENT_ADDR + 0x188000070UL)
+#define LCA_IOC_TB_TAG5		(IDENT_ADDR + 0x1880000a0UL)
+#define LCA_IOC_TB_TAG6		(IDENT_ADDR + 0x1880000c0UL)
+#define LCA_IOC_TB_TAG7		(IDENT_ADDR + 0x1880000e0UL)
+
+/*
+ * Memory spaces:
+ */
+#define LCA_IACK_SC		(IDENT_ADDR + 0x1a0000000UL)
+#define LCA_CONF		(IDENT_ADDR + 0x1e0000000UL)
+#define LCA_IO			(IDENT_ADDR + 0x1c0000000UL)
+#define LCA_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
+#define LCA_DENSE_MEM		(IDENT_ADDR + 0x300000000UL)
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define LCA_IOC_STAT0_CMD		0xf
+#define LCA_IOC_STAT0_ERR		(1<<4)
+#define LCA_IOC_STAT0_LOST		(1<<5)
+#define LCA_IOC_STAT0_THIT		(1<<6)
+#define LCA_IOC_STAT0_TREF		(1<<7)
+#define LCA_IOC_STAT0_CODE_SHIFT	8
+#define LCA_IOC_STAT0_CODE_MASK		0x7
+#define LCA_IOC_STAT0_P_NBR_SHIFT	13
+#define LCA_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define LCA_HAE_ADDRESS		LCA_IOC_HAE
+
+/* LCA PMR Power Management register defines */
+#define LCA_PMR_ADDR	(IDENT_ADDR + 0x120000098UL)
+#define LCA_PMR_PDIV    0x7                     /* Primary clock divisor */
+#define LCA_PMR_ODIV    0x38                    /* Override clock divisor */
+#define LCA_PMR_INTO    0x40                    /* Interrupt override */
+#define LCA_PMR_DMAO    0x80                    /* DMA override */
+#define LCA_PMR_OCCEB   0xffff0000L             /* Override cycle counter - even bits */
+#define LCA_PMR_OCCOB   0xffff000000000000L     /* Override cycle counter - even bits */
+#define LCA_PMR_PRIMARY_MASK    0xfffffffffffffff8L
+
+/* LCA PMR Macros */
+
+#define LCA_READ_PMR        (*(volatile unsigned long *)LCA_PMR_ADDR)
+#define LCA_WRITE_PMR(d)    (*((volatile unsigned long *)LCA_PMR_ADDR) = (d))
+
+#define LCA_GET_PRIMARY(r)  ((r) & LCA_PMR_PDIV)
+#define LCA_GET_OVERRIDE(r) (((r) >> 3) & LCA_PMR_PDIV)
+#define LCA_SET_PRIMARY_CLOCK(r, c) ((r) = (((r) & LCA_PMR_PRIMARY_MASK)|(c)))
+
+/* LCA PMR Divisor values */
+#define LCA_PMR_DIV_1   0x0
+#define LCA_PMR_DIV_1_5 0x1
+#define LCA_PMR_DIV_2   0x2
+#define LCA_PMR_DIV_4   0x3
+#define LCA_PMR_DIV_8   0x4
+#define LCA_PMR_DIV_16  0x5
+#define LCA_PMR_DIV_MIN DIV_1
+#define LCA_PMR_DIV_MAX DIV_16
+
+
+/*
+ * Data structure for handling LCA machine checks.  Correctable errors
+ * result in a short logout frame, uncorrectable ones in a long one.
+ */
+struct el_lca_mcheck_short {
+	struct el_common	h;		/* common logout header */
+	unsigned long		esr;		/* error-status register */
+	unsigned long		ear;		/* error-address register */
+	unsigned long		dc_stat;	/* dcache status register */
+	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
+	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
+};
+
+struct el_lca_mcheck_long {
+	struct el_common	h;		/* common logout header */
+	unsigned long		pt[31];		/* PAL temps */
+	unsigned long		exc_addr;	/* exception address */
+	unsigned long		pad1[3];
+	unsigned long		pal_base;	/* PALcode base address */
+	unsigned long		hier;		/* hw interrupt enable */
+	unsigned long		hirr;		/* hw interrupt request */
+	unsigned long		mm_csr;		/* MMU control & status */
+	unsigned long		dc_stat;	/* data cache status */
+	unsigned long		dc_addr;	/* data cache addr register */
+	unsigned long		abox_ctl;	/* address box control register */
+	unsigned long		esr;		/* error status register */
+	unsigned long		ear;		/* error address register */
+	unsigned long		car;		/* cache control register */
+	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
+	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
+	unsigned long		va;		/* virtual address register */
+};
+
+union el_lca {
+	struct el_common *		c;
+	struct el_lca_mcheck_long *	l;
+	struct el_lca_mcheck_short *	s;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the Noname machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here.  In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#define LCA_SET_HAE						\
+	do {							\
+		if (addr >= (1UL << 24)) {			\
+			unsigned long msb = addr & 0xf8000000;	\
+			addr -= msb;				\
+			set_hae(msb);				\
+		}						\
+	} while (0)
+
+
+__EXTERN_INLINE u8 lca_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x00;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x00;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x00;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x00;
+	}
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u16 lca_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x08;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x08;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x08;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x08;
+	}
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE u32 lca_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void lca_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 lca_ioread64(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	return *(vulp)addr;
+}
+
+__EXTERN_INLINE void lca_iowrite64(u64 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	*(vulp)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *lca_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + LCA_IO);
+}
+
+__EXTERN_INLINE void __iomem *lca_ioremap(unsigned long addr,
+					  unsigned long size)
+{
+	return (void __iomem *)(addr + LCA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int lca_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x120000000UL;
+}
+
+__EXTERN_INLINE int lca_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= LCA_DENSE_MEM;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		lca
+#define lca_trivial_rw_bw	2
+#define lca_trivial_rw_lq	1
+#define lca_trivial_io_bw	0
+#define lca_trivial_io_lq	0
+#define lca_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_LCA__H__ */
diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h
new file mode 100644
index 000000000..d99f3a82e
--- /dev/null
+++ b/arch/alpha/include/asm/core_marvel.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access
+ *
+ * This file is based on:
+ *
+ * Marvel / EV7 System Programmer's Manual
+ * Revision 1.00
+ * 14 May 2001
+ */
+
+#ifndef __ALPHA_MARVEL__H__
+#define __ALPHA_MARVEL__H__
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#include <asm/compiler.h>
+
+#define MARVEL_MAX_PIDS		 32 /* as long as we rely on 43-bit superpage */
+#define MARVEL_IRQ_VEC_PE_SHIFT	(10)
+#define MARVEL_IRQ_VEC_IRQ_MASK	((1 << MARVEL_IRQ_VEC_PE_SHIFT) - 1)
+#define MARVEL_NR_IRQS		\
+	(16 + (MARVEL_MAX_PIDS * (1 << MARVEL_IRQ_VEC_PE_SHIFT)))
+
+/*
+ * EV7 RBOX Registers
+ */
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(16)));
+} ev7_csr;
+
+typedef struct {
+	ev7_csr	RBOX_CFG;		/* 0x0000 */
+	ev7_csr	RBOX_NSVC;
+	ev7_csr	RBOX_EWVC;
+	ev7_csr	RBOX_WHAMI;
+	ev7_csr	RBOX_TCTL;		/* 0x0040 */
+	ev7_csr	RBOX_INT;
+	ev7_csr	RBOX_IMASK;
+	ev7_csr	RBOX_IREQ;
+	ev7_csr	RBOX_INTQ;		/* 0x0080 */
+	ev7_csr	RBOX_INTA;
+	ev7_csr	RBOX_IT;
+	ev7_csr	RBOX_SCRATCH1;
+	ev7_csr	RBOX_SCRATCH2;		/* 0x00c0 */
+	ev7_csr	RBOX_L_ERR;
+} ev7_csrs;
+
+/*
+ * EV7 CSR addressing macros
+ */
+#define EV7_MASK40(addr)        ((addr) & ((1UL << 41) - 1))
+#define EV7_KERN_ADDR(addr)	((void *)(IDENT_ADDR | EV7_MASK40(addr)))
+
+#define EV7_PE_MASK		0x1ffUL /* 9 bits ( 256 + mem/io ) */
+#define EV7_IPE(pe)		((~((long)(pe)) & EV7_PE_MASK) << 35)
+
+#define EV7_CSR_PHYS(pe, off)	(EV7_IPE(pe) | (0x7FFCUL << 20) | (off))
+#define EV7_CSRS_PHYS(pe)	(EV7_CSR_PHYS(pe, 0UL))
+
+#define EV7_CSR_KERN(pe, off)	(EV7_KERN_ADDR(EV7_CSR_PHYS(pe, off)))
+#define EV7_CSRS_KERN(pe)	(EV7_KERN_ADDR(EV7_CSRS_PHYS(pe)))
+
+#define EV7_CSR_OFFSET(name)	((unsigned long)&((ev7_csrs *)NULL)->name.csr)
+
+/*
+ * IO7 registers
+ */
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} io7_csr;
+
+typedef struct {
+	/* I/O Port Control Registers */
+	io7_csr	POx_CTRL;	       	/* 0x0000 */
+	io7_csr	POx_CACHE_CTL;
+	io7_csr POx_TIMER;
+	io7_csr POx_IO_ADR_EXT;
+	io7_csr	POx_MEM_ADR_EXT;	/* 0x0100 */
+	io7_csr POx_XCAL_CTRL;
+	io7_csr rsvd1[2];	/* ?? spec doesn't show 0x180 */
+	io7_csr POx_DM_SOURCE;		/* 0x0200 */
+	io7_csr POx_DM_DEST;
+	io7_csr POx_DM_SIZE;
+	io7_csr POx_DM_CTRL;
+	io7_csr rsvd2[4];		/* 0x0300 */
+
+	/* AGP Control Registers -- port 3 only */
+	io7_csr AGP_CAP_ID;		/* 0x0400 */
+	io7_csr AGP_STAT;
+	io7_csr	AGP_CMD;
+	io7_csr	rsvd3;
+
+	/* I/O Port Monitor Registers */
+	io7_csr	POx_MONCTL;		/* 0x0500 */
+	io7_csr POx_CTRA;
+	io7_csr POx_CTRB;
+	io7_csr POx_CTR56;
+	io7_csr POx_SCRATCH;		/* 0x0600 */
+	io7_csr POx_XTRA_A;
+	io7_csr POx_XTRA_TS;
+	io7_csr POx_XTRA_Z;
+	io7_csr rsvd4;			/* 0x0700 */
+	io7_csr POx_THRESHA;
+	io7_csr POx_THRESHB;
+	io7_csr rsvd5[33];
+
+	/* System Address Space Window Control Registers */
+
+	io7_csr POx_WBASE[4];		/* 0x1000 */
+	io7_csr POx_WMASK[4];
+	io7_csr POx_TBASE[4];
+	io7_csr POx_SG_TBIA;
+	io7_csr POx_MSI_WBASE;
+	io7_csr rsvd6[50];
+
+	/* I/O Port Error Registers */
+	io7_csr POx_ERR_SUM;
+	io7_csr POx_FIRST_ERR;
+	io7_csr POx_MSK_HEI;
+	io7_csr POx_TLB_ERR;
+	io7_csr POx_SPL_COMPLT;
+	io7_csr POx_TRANS_SUM;
+	io7_csr POx_FRC_PCI_ERR;
+	io7_csr POx_MULT_ERR;
+	io7_csr rsvd7[8];
+
+	/* I/O Port End of Interrupt Registers */
+	io7_csr EOI_DAT;
+	io7_csr rsvd8[7];
+	io7_csr POx_IACK_SPECIAL;
+	io7_csr rsvd9[103];
+} io7_ioport_csrs;
+
+typedef struct {
+	io7_csr IO_ASIC_REV;		/* 0x30.0000 */
+	io7_csr IO_SYS_REV;
+	io7_csr SER_CHAIN3;
+	io7_csr PO7_RST1;
+	io7_csr PO7_RST2;		/* 0x30.0100 */
+	io7_csr POx_RST[4];
+	io7_csr IO7_DWNH;
+	io7_csr IO7_MAF;
+	io7_csr IO7_MAF_TO;
+	io7_csr IO7_ACC_CLUMP;		/* 0x30.0300 */
+	io7_csr IO7_PMASK;
+	io7_csr IO7_IOMASK;
+	io7_csr IO7_UPH;
+	io7_csr IO7_UPH_TO;		/* 0x30.0400 */
+	io7_csr RBX_IREQ_OFF;
+	io7_csr RBX_INTA_OFF;
+	io7_csr INT_RTY;
+	io7_csr PO7_MONCTL;		/* 0x30.0500 */
+	io7_csr PO7_CTRA;
+	io7_csr PO7_CTRB;
+	io7_csr PO7_CTR56;
+	io7_csr PO7_SCRATCH;		/* 0x30.0600 */
+	io7_csr PO7_XTRA_A;
+	io7_csr PO7_XTRA_TS;
+	io7_csr PO7_XTRA_Z;
+	io7_csr PO7_PMASK;		/* 0x30.0700 */
+	io7_csr PO7_THRESHA;
+	io7_csr PO7_THRESHB;
+	io7_csr rsvd1[97];
+	io7_csr PO7_ERROR_SUM;		/* 0x30.2000 */
+	io7_csr PO7_BHOLE_MASK;
+	io7_csr PO7_HEI_MSK;
+	io7_csr PO7_CRD_MSK;
+	io7_csr PO7_UNCRR_SYM;		/* 0x30.2100 */
+	io7_csr PO7_CRRCT_SYM;
+	io7_csr PO7_ERR_PKT[2];
+	io7_csr PO7_UGBGE_SYM;		/* 0x30.2200 */
+	io7_csr rsbv2[887];
+	io7_csr PO7_LSI_CTL[128];	/* 0x31.0000 */
+	io7_csr rsvd3[123];
+	io7_csr HLT_CTL;		/* 0x31.3ec0 */
+	io7_csr HPI_CTL;		/* 0x31.3f00 */
+	io7_csr CRD_CTL;
+	io7_csr STV_CTL;
+	io7_csr HEI_CTL;
+	io7_csr PO7_MSI_CTL[16];	/* 0x31.4000 */
+	io7_csr rsvd4[240];
+
+	/*
+	 * Interrupt Diagnostic / Test
+	 */
+	struct {
+		io7_csr INT_PND;
+		io7_csr INT_CLR;
+		io7_csr INT_EOI;
+		io7_csr rsvd[29];
+	} INT_DIAG[4];
+	io7_csr rsvd5[125];	    	/* 0x31.a000 */
+	io7_csr MISC_PND;		/* 0x31.b800 */
+	io7_csr rsvd6[31];
+	io7_csr MSI_PND[16];		/* 0x31.c000 */
+	io7_csr rsvd7[16];
+	io7_csr MSI_CLR[16];		/* 0x31.c800 */
+} io7_port7_csrs;
+
+/* 
+ * IO7 DMA Window Base register (POx_WBASEx)
+ */
+#define wbase_m_ena  0x1
+#define wbase_m_sg   0x2
+#define wbase_m_dac  0x4
+#define wbase_m_addr 0xFFF00000
+union IO7_POx_WBASE {
+	struct {
+		unsigned ena : 1;	/* <0>			*/
+		unsigned sg : 1;	/* <1>			*/
+		unsigned dac : 1;	/* <2> -- window 3 only */
+		unsigned rsvd1 : 17; 
+		unsigned addr : 12;	/* <31:20>		*/
+		unsigned rsvd2 : 32;
+	} bits;
+	unsigned as_long[2];
+	unsigned as_quad;
+};
+
+/*
+ * IO7 IID (Interrupt IDentifier) format
+ *
+ * For level-sensative interrupts, int_num is encoded as:
+ *
+ *	bus/port	slot/device	INTx
+ *	<7:5>		<4:2>		<1:0>
+ */
+union IO7_IID {
+	struct {
+		unsigned int_num : 9;		/* <8:0>    	*/
+		unsigned tpu_mask : 4;		/* <12:9> rsvd	*/
+		unsigned msi : 1;		/* 13		*/
+		unsigned ipe : 10;		/* <23:14>	*/
+		unsigned long rsvd : 40;		
+	} bits;
+	unsigned int as_long[2];
+	unsigned long as_quad;
+};
+
+/*
+ * IO7 addressing macros
+ */
+#define IO7_KERN_ADDR(addr)	(EV7_KERN_ADDR(addr))
+
+#define IO7_PORT_MASK	   	0x07UL	/* 3 bits of port 	   */
+
+#define IO7_IPE(pe)		(EV7_IPE(pe))
+#define IO7_IPORT(port)		((~((long)(port)) & IO7_PORT_MASK) << 32)
+
+#define IO7_HOSE(pe, port)	(IO7_IPE(pe) | IO7_IPORT(port))
+
+#define IO7_MEM_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0x00000000UL)
+#define IO7_CONF_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0xFE000000UL)
+#define IO7_IO_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0xFF000000UL)
+#define IO7_CSR_PHYS(pe, port, off) \
+                                (IO7_HOSE(pe, port) | 0xFF800000UL | (off))
+#define IO7_CSRS_PHYS(pe, port)	(IO7_CSR_PHYS(pe, port, 0UL))
+#define IO7_PORT7_CSRS_PHYS(pe) (IO7_CSR_PHYS(pe, 7, 0x300000UL))
+
+#define IO7_MEM_KERN(pe, port)      (IO7_KERN_ADDR(IO7_MEM_PHYS(pe, port)))
+#define IO7_CONF_KERN(pe, port)     (IO7_KERN_ADDR(IO7_CONF_PHYS(pe, port)))
+#define IO7_IO_KERN(pe, port)       (IO7_KERN_ADDR(IO7_IO_PHYS(pe, port)))
+#define IO7_CSR_KERN(pe, port, off) (IO7_KERN_ADDR(IO7_CSR_PHYS(pe,port,off)))
+#define IO7_CSRS_KERN(pe, port)     (IO7_KERN_ADDR(IO7_CSRS_PHYS(pe, port)))
+#define IO7_PORT7_CSRS_KERN(pe)	    (IO7_KERN_ADDR(IO7_PORT7_CSRS_PHYS(pe)))
+
+#define IO7_PLL_RNGA(pll)	(((pll) >> 3) & 0x7)
+#define IO7_PLL_RNGB(pll)	(((pll) >> 6) & 0x7)
+
+#define IO7_MEM_SPACE		(2UL * 1024 * 1024 * 1024)	/* 2GB MEM */
+#define IO7_IO_SPACE		(8UL * 1024 * 1024)		/* 8MB I/O */
+
+ 
+/* 
+ * Offset between ram physical addresses and pci64 DAC addresses
+ */
+#define IO7_DAC_OFFSET		(1UL << 49)
+
+/*
+ * This is needed to satisify the IO() macro used in initializing the machvec
+ */
+#define MARVEL_IACK_SC 							\
+        ((unsigned long)						\
+	 (&(((io7_ioport_csrs *)IO7_CSRS_KERN(0, 0))->POx_IACK_SPECIAL)))
+
+#ifdef __KERNEL__
+
+/*
+ * IO7 structs
+ */
+#define IO7_NUM_PORTS 4
+#define IO7_AGP_PORT  3
+
+struct io7_port {
+	struct io7 *io7;
+	struct pci_controller *hose;
+
+	int enabled;
+	unsigned int port;
+	io7_ioport_csrs *csrs;
+
+	unsigned long saved_wbase[4];
+	unsigned long saved_wmask[4];
+	unsigned long saved_tbase[4];
+};
+
+struct io7 {
+	struct io7 *next;
+
+	unsigned int pe;
+	io7_port7_csrs *csrs;
+	struct io7_port ports[IO7_NUM_PORTS];
+
+	raw_spinlock_t irq_lock;
+};
+
+#ifndef __EXTERN_INLINE
+# define __EXTERN_INLINE extern inline
+# define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions. All access through linear space.
+ */
+
+/*
+ * Memory functions.  All accesses through linear space.
+ */
+
+#define vucp	volatile unsigned char __force *
+#define vusp	volatile unsigned short __force *
+
+extern u8 marvel_ioread8(const void __iomem *);
+extern void marvel_iowrite8(u8 b, void __iomem *);
+
+__EXTERN_INLINE u16 marvel_ioread16(const void __iomem *addr)
+{
+	return __kernel_ldwu(*(vusp)addr);
+}
+
+__EXTERN_INLINE void marvel_iowrite16(u16 b, void __iomem *addr)
+{
+	__kernel_stw(b, *(vusp)addr);
+}
+
+extern void __iomem *marvel_ioremap(unsigned long addr, unsigned long size);
+extern void marvel_iounmap(volatile void __iomem *addr);
+extern void __iomem *marvel_ioportmap (unsigned long addr);
+
+__EXTERN_INLINE int marvel_is_ioaddr(unsigned long addr)
+{
+	return (addr >> 40) & 1;
+}
+
+extern int marvel_is_mmio(const volatile void __iomem *);
+
+#undef vucp
+#undef vusp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		marvel
+#define marvel_trivial_rw_bw	1
+#define marvel_trivial_rw_lq	1
+#define marvel_trivial_io_bw	0
+#define marvel_trivial_io_lq	1
+#define marvel_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+# undef __EXTERN_INLINE
+# undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MARVEL__H__ */
diff --git a/arch/alpha/include/asm/core_mcpcia.h b/arch/alpha/include/asm/core_mcpcia.h
new file mode 100644
index 000000000..ed2bf8ad4
--- /dev/null
+++ b/arch/alpha/include/asm/core_mcpcia.h
@@ -0,0 +1,404 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCPCIA__H__
+#define __ALPHA_MCPCIA__H__
+
+/* Define to experiment with fitting everything into one 128MB HAE window.
+   One window per bus, that is.  */
+#define MCPCIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * MCPCIA is the internal name for a core logic chipset which provides
+ * PCI access for the RAWHIDE family of systems.
+ *
+ * This file is based on:
+ *
+ * RAWHIDE System Programmer's Manual
+ * 16-May-96
+ * Rev. 1.4
+ *
+ */
+
+/*------------------------------------------------------------------------**
+**                                                                        **
+**  I/O procedures                                                        **
+**                                                                        **
+**      inport[b|w|t|l], outport[b|w|t|l] 8:16:24:32 IO xfers             **
+**	inportbxt: 8 bits only                                            **
+**      inport:    alias of inportw                                       **
+**      outport:   alias of outportw                                      **
+**                                                                        **
+**      inmem[b|w|t|l], outmem[b|w|t|l] 8:16:24:32 ISA memory xfers       **
+**	inmembxt: 8 bits only                                             **
+**      inmem:    alias of inmemw                                         **
+**      outmem:   alias of outmemw                                        **
+**                                                                        **
+**------------------------------------------------------------------------*/
+
+
+/* MCPCIA ADDRESS BIT DEFINITIONS
+ *
+ *  3333 3333 3322 2222 2222 1111 1111 11
+ *  9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  1                                             000
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  |                                             |\|
+ *  |                               Byte Enable --+ |
+ *  |                             Transfer Length --+
+ *  +-- IO space, not cached
+ *
+ *   Byte      Transfer
+ *   Enable    Length    Transfer  Byte    Address
+ *   adr<6:5>  adr<4:3>  Length    Enable  Adder
+ *   ---------------------------------------------
+ *      00        00      Byte      1110   0x000
+ *      01        00      Byte      1101   0x020
+ *      10        00      Byte      1011   0x040
+ *      11        00      Byte      0111   0x060
+ *
+ *      00        01      Word      1100   0x008
+ *      01        01      Word      1001   0x028 <= Not supported in this code.
+ *      10        01      Word      0011   0x048
+ *
+ *      00        10      Tribyte   1000   0x010
+ *      01        10      Tribyte   0001   0x030
+ *
+ *      10        11      Longword  0000   0x058
+ *
+ *      Note that byte enables are asserted low.
+ *
+ */
+
+#define MCPCIA_MAX_HOSES 4
+
+#define MCPCIA_MID(m)		((unsigned long)(m) << 33)
+
+/* Dodge has PCI0 and PCI1 at MID 4 and 5 respectively. 
+   Durango adds PCI2 and PCI3 at MID 6 and 7 respectively.  */
+#define MCPCIA_HOSE2MID(h)	((h) + 4)
+
+#define MCPCIA_MEM_MASK 0x07ffffff /* SPARSE Mem region mask is 27 bits */
+
+/*
+ * Memory spaces:
+ */
+#define MCPCIA_SPARSE(m)	(IDENT_ADDR + 0xf000000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE(m)		(IDENT_ADDR + 0xf100000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO(m)		(IDENT_ADDR + 0xf180000000UL + MCPCIA_MID(m))
+#define MCPCIA_CONF(m)		(IDENT_ADDR + 0xf1c0000000UL + MCPCIA_MID(m))
+#define MCPCIA_CSR(m)		(IDENT_ADDR + 0xf1e0000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO_IACK(m)	(IDENT_ADDR + 0xf1f0000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_IO(m)	(IDENT_ADDR + 0xe1fc000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_CONF(m)	(IDENT_ADDR + 0xe1fe000000UL + MCPCIA_MID(m))
+
+/*
+ *  General Registers
+ */
+#define MCPCIA_REV(m)		(MCPCIA_CSR(m) + 0x000)
+#define MCPCIA_WHOAMI(m)	(MCPCIA_CSR(m) + 0x040)
+#define MCPCIA_PCI_LAT(m)	(MCPCIA_CSR(m) + 0x080)
+#define MCPCIA_CAP_CTRL(m)	(MCPCIA_CSR(m) + 0x100)
+#define MCPCIA_HAE_MEM(m)	(MCPCIA_CSR(m) + 0x400)
+#define MCPCIA_HAE_IO(m)	(MCPCIA_CSR(m) + 0x440)
+#define _MCPCIA_IACK_SC(m)	(MCPCIA_CSR(m) + 0x480)
+#define MCPCIA_HAE_DENSE(m)	(MCPCIA_CSR(m) + 0x4C0)
+
+/*
+ * Interrupt Control registers
+ */
+#define MCPCIA_INT_CTL(m)	(MCPCIA_CSR(m) + 0x500)
+#define MCPCIA_INT_REQ(m)	(MCPCIA_CSR(m) + 0x540)
+#define MCPCIA_INT_TARG(m)	(MCPCIA_CSR(m) + 0x580)
+#define MCPCIA_INT_ADR(m)	(MCPCIA_CSR(m) + 0x5C0)
+#define MCPCIA_INT_ADR_EXT(m)	(MCPCIA_CSR(m) + 0x600)
+#define MCPCIA_INT_MASK0(m)	(MCPCIA_CSR(m) + 0x640)
+#define MCPCIA_INT_MASK1(m)	(MCPCIA_CSR(m) + 0x680)
+#define MCPCIA_INT_ACK0(m)	(MCPCIA_CSR(m) + 0x10003f00)
+#define MCPCIA_INT_ACK1(m)	(MCPCIA_CSR(m) + 0x10003f40)
+
+/*
+ * Performance Monitor registers
+ */
+#define MCPCIA_PERF_MON(m)	(MCPCIA_CSR(m) + 0x300)
+#define MCPCIA_PERF_CONT(m)	(MCPCIA_CSR(m) + 0x340)
+
+/*
+ * Diagnostic Registers
+ */
+#define MCPCIA_CAP_DIAG(m)	(MCPCIA_CSR(m) + 0x700)
+#define MCPCIA_TOP_OF_MEM(m)	(MCPCIA_CSR(m) + 0x7C0)
+
+/*
+ * Error registers
+ */
+#define MCPCIA_MC_ERR0(m)	(MCPCIA_CSR(m) + 0x800)
+#define MCPCIA_MC_ERR1(m)	(MCPCIA_CSR(m) + 0x840)
+#define MCPCIA_CAP_ERR(m)	(MCPCIA_CSR(m) + 0x880)
+#define MCPCIA_PCI_ERR1(m)	(MCPCIA_CSR(m) + 0x1040)
+#define MCPCIA_MDPA_STAT(m)	(MCPCIA_CSR(m) + 0x4000)
+#define MCPCIA_MDPA_SYN(m)	(MCPCIA_CSR(m) + 0x4040)
+#define MCPCIA_MDPA_DIAG(m)	(MCPCIA_CSR(m) + 0x4080)
+#define MCPCIA_MDPB_STAT(m)	(MCPCIA_CSR(m) + 0x8000)
+#define MCPCIA_MDPB_SYN(m)	(MCPCIA_CSR(m) + 0x8040)
+#define MCPCIA_MDPB_DIAG(m)	(MCPCIA_CSR(m) + 0x8080)
+
+/*
+ * PCI Address Translation Registers.
+ */
+#define MCPCIA_SG_TBIA(m)	(MCPCIA_CSR(m) + 0x1300)
+#define MCPCIA_HBASE(m)		(MCPCIA_CSR(m) + 0x1340)
+
+#define MCPCIA_W0_BASE(m)	(MCPCIA_CSR(m) + 0x1400)
+#define MCPCIA_W0_MASK(m)	(MCPCIA_CSR(m) + 0x1440)
+#define MCPCIA_T0_BASE(m)	(MCPCIA_CSR(m) + 0x1480)
+
+#define MCPCIA_W1_BASE(m)	(MCPCIA_CSR(m) + 0x1500)
+#define MCPCIA_W1_MASK(m)	(MCPCIA_CSR(m) + 0x1540)
+#define MCPCIA_T1_BASE(m)	(MCPCIA_CSR(m) + 0x1580)
+
+#define MCPCIA_W2_BASE(m)	(MCPCIA_CSR(m) + 0x1600)
+#define MCPCIA_W2_MASK(m)	(MCPCIA_CSR(m) + 0x1640)
+#define MCPCIA_T2_BASE(m)	(MCPCIA_CSR(m) + 0x1680)
+
+#define MCPCIA_W3_BASE(m)	(MCPCIA_CSR(m) + 0x1700)
+#define MCPCIA_W3_MASK(m)	(MCPCIA_CSR(m) + 0x1740)
+#define MCPCIA_T3_BASE(m)	(MCPCIA_CSR(m) + 0x1780)
+
+/* Hack!  Only words for bus 0.  */
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_HAE_ADDRESS	MCPCIA_HAE_MEM(4)
+#endif
+#define MCPCIA_IACK_SC		_MCPCIA_IACK_SC(4)
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define MCPCIA_IO_BIAS		MCPCIA_IO(4)
+#define MCPCIA_MEM_BIAS		MCPCIA_DENSE(4)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define MCPCIA_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling MCPCIA machine checks:
+ */
+struct el_MCPCIA_uncorrected_frame_mcheck {
+	struct el_common header;
+	struct el_common_EV5_uncorrectable_mcheck procdata;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * MCPCIA, the RAWHIDE family PCI/memory support chipset for the EV5 (21164)
+ * and EV56 (21164a) processors, can use either a sparse address mapping
+ * scheme, or the so-called byte-word PCI address space, to get at PCI memory
+ * and I/O.
+ *
+ * Unfortunately, we can't use BWIO with EV5, so for now, we always use SPARSE.
+ */
+
+/*
+ * Memory functions.  64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_FROB_MMIO						\
+	if (__mcpcia_is_mmio(hose)) {					\
+		set_hae(hose & 0xffffffff);				\
+		hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);	\
+	}
+#else
+#define MCPCIA_FROB_MMIO						\
+	if (__mcpcia_is_mmio(hose)) {					\
+		hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);	\
+	}
+#endif
+
+extern inline int __mcpcia_is_mmio(unsigned long addr)
+{
+	return (addr & 0x80000000UL) == 0;
+}
+
+__EXTERN_INLINE u8 mcpcia_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long result;
+
+	MCPCIA_FROB_MMIO;
+
+	result = *(vip) ((addr << 5) + hose + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long w;
+
+	MCPCIA_FROB_MMIO;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + hose + 0x00) = w;
+}
+
+__EXTERN_INLINE u16 mcpcia_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long result;
+
+	MCPCIA_FROB_MMIO;
+
+	result = *(vip) ((addr << 5) + hose + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long w;
+
+	MCPCIA_FROB_MMIO;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + hose + 0x08) = w;
+}
+
+__EXTERN_INLINE u32 mcpcia_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void mcpcia_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE u64 mcpcia_ioread64(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	return *(vulp)addr;
+}
+
+__EXTERN_INLINE void mcpcia_iowrite64(u64 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	*(vulp)addr = b;
+}
+
+
+__EXTERN_INLINE void __iomem *mcpcia_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + MCPCIA_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *mcpcia_ioremap(unsigned long addr,
+					     unsigned long size)
+{
+	return (void __iomem *)(addr + MCPCIA_MEM_BIAS);
+}
+
+__EXTERN_INLINE int mcpcia_is_ioaddr(unsigned long addr)
+{
+	return addr >= MCPCIA_SPARSE(0);
+}
+
+__EXTERN_INLINE int mcpcia_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	return __mcpcia_is_mmio(addr);
+}
+
+#undef MCPCIA_FROB_MMIO
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		mcpcia
+#define mcpcia_trivial_rw_bw	2
+#define mcpcia_trivial_rw_lq	1
+#define mcpcia_trivial_io_bw	0
+#define mcpcia_trivial_io_lq	0
+#define mcpcia_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MCPCIA__H__ */
diff --git a/arch/alpha/include/asm/core_polaris.h b/arch/alpha/include/asm/core_polaris.h
new file mode 100644
index 000000000..1c56dea64
--- /dev/null
+++ b/arch/alpha/include/asm/core_polaris.h
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_POLARIS__H__
+#define __ALPHA_POLARIS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * POLARIS is the internal name for a core logic chipset which provides
+ * memory controller and PCI access for the 21164PC chip based systems.
+ *
+ * This file is based on:
+ *
+ * Polaris System Controller
+ * Device Functional Specification
+ * 22-Jan-98
+ * Rev. 4.2
+ *
+ */
+
+/* Polaris memory regions */
+#define POLARIS_SPARSE_MEM_BASE		(IDENT_ADDR + 0xf800000000UL)
+#define POLARIS_DENSE_MEM_BASE		(IDENT_ADDR + 0xf900000000UL)
+#define POLARIS_SPARSE_IO_BASE		(IDENT_ADDR + 0xf980000000UL)
+#define POLARIS_SPARSE_CONFIG_BASE	(IDENT_ADDR + 0xf9c0000000UL)
+#define POLARIS_IACK_BASE		(IDENT_ADDR + 0xf9f8000000UL)
+#define POLARIS_DENSE_IO_BASE		(IDENT_ADDR + 0xf9fc000000UL)
+#define POLARIS_DENSE_CONFIG_BASE	(IDENT_ADDR + 0xf9fe000000UL)
+
+#define POLARIS_IACK_SC			POLARIS_IACK_BASE
+
+/* The Polaris command/status registers live in PCI Config space for
+ * bus 0/device 0.  As such, they may be bytes, words, or doublewords.
+ */
+#define POLARIS_W_VENID		(POLARIS_DENSE_CONFIG_BASE)
+#define POLARIS_W_DEVID		(POLARIS_DENSE_CONFIG_BASE+2)
+#define POLARIS_W_CMD		(POLARIS_DENSE_CONFIG_BASE+4)
+#define POLARIS_W_STATUS	(POLARIS_DENSE_CONFIG_BASE+6)
+
+/*
+ * Data structure for handling POLARIS machine checks:
+ */
+struct el_POLARIS_sysdata_mcheck {
+    u_long      psc_status;
+    u_long	psc_pcictl0;
+    u_long	psc_pcictl1;
+    u_long	psc_pcictl2;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC)
+ * processors, can use either a sparse address  mapping scheme, or the 
+ * so-called byte-word PCI address space, to get at PCI memory and I/O.
+ *
+ * However, we will support only the BWX form.
+ */
+
+/*
+ * Memory functions.  Polaris allows all accesses (byte/word
+ * as well as long/quad) to be done through dense space.
+ *
+ * We will only support DENSE access via BWX insns.
+ */
+
+__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE);
+}
+
+__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr,
+					      unsigned long size)
+{
+	return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE);
+}
+
+__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr)
+{
+	return addr >= POLARIS_SPARSE_MEM_BASE;
+}
+
+__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr < POLARIS_SPARSE_IO_BASE;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		polaris
+#define polaris_trivial_rw_bw	1
+#define polaris_trivial_rw_lq	1
+#define polaris_trivial_io_bw	1
+#define polaris_trivial_io_lq	1
+#define polaris_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_POLARIS__H__ */
diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h
new file mode 100644
index 000000000..ab956b162
--- /dev/null
+++ b/arch/alpha/include/asm/core_t2.h
@@ -0,0 +1,629 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_T2__H__
+#define __ALPHA_T2__H__
+
+/* Fit everything into one 128MB HAE window. */
+#define T2_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <asm/compiler.h>
+
+/*
+ * T2 is the internal name for the core logic chipset which provides
+ * memory controller and PCI access for the SABLE-based systems.
+ *
+ * This file is based on:
+ *
+ * SABLE I/O Specification
+ * Revision/Update Information: 1.3
+ *
+ * jestabro@amt.tay1.dec.com Initial Version.
+ *
+ */
+
+#define T2_MEM_R1_MASK 0x07ffffff  /* Mem sparse region 1 mask is 27 bits */
+
+/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
+/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
+#define _GAMMA_BIAS		0x8000000000UL
+
+#if defined(CONFIG_ALPHA_GENERIC)
+#define GAMMA_BIAS		alpha_mv.sys.t2.gamma_bias
+#elif defined(CONFIG_ALPHA_GAMMA)
+#define GAMMA_BIAS		_GAMMA_BIAS
+#else
+#define GAMMA_BIAS		0
+#endif
+
+/*
+ * Memory spaces:
+ */
+#define T2_CONF		        (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
+#define T2_IO			(IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
+#define T2_SPARSE_MEM		(IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
+#define T2_DENSE_MEM	        (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
+
+#define T2_IOCSR		(IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
+#define T2_CERR1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
+#define T2_CERR2		(IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
+#define T2_CERR3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
+#define T2_PERR1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
+#define T2_PERR2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
+#define T2_PSCR			(IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
+#define T2_HAE_1		(IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
+#define T2_HAE_2		(IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
+#define T2_HBASE		(IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
+#define T2_WBASE1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
+#define T2_WMASK1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
+#define T2_TBASE1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
+#define T2_WBASE2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
+#define T2_WMASK2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
+#define T2_TBASE2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
+#define T2_TLBBR		(IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
+#define T2_IVR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
+#define T2_HAE_3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
+#define T2_HAE_4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
+
+/* The CSRs below are T3/T4 only */
+#define T2_WBASE3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
+#define T2_WMASK3		(IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
+#define T2_TBASE3		(IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
+
+#define T2_TDR0			(IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
+#define T2_TDR1			(IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
+#define T2_TDR2			(IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
+#define T2_TDR3			(IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
+#define T2_TDR4			(IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
+#define T2_TDR5			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
+#define T2_TDR6			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
+#define T2_TDR7			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
+
+#define T2_WBASE4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
+#define T2_WMASK4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
+#define T2_TBASE4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
+
+#define T2_AIR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
+#define T2_VAR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
+#define T2_DIR			(IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
+#define T2_ICE			(IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
+
+#ifndef T2_ONE_HAE_WINDOW
+#define T2_HAE_ADDRESS		T2_HAE_1
+#endif
+
+/*  T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
+ 3.8fff.ffff
+ *
+ *  +--------------+ 3 8000 0000
+ *  | CPU 0 CSRs   |
+ *  +--------------+ 3 8100 0000
+ *  | CPU 1 CSRs   |
+ *  +--------------+ 3 8200 0000
+ *  | CPU 2 CSRs   |
+ *  +--------------+ 3 8300 0000
+ *  | CPU 3 CSRs   |
+ *  +--------------+ 3 8400 0000
+ *  | CPU Reserved |
+ *  +--------------+ 3 8700 0000
+ *  | Mem Reserved |
+ *  +--------------+ 3 8800 0000
+ *  | Mem 0 CSRs   |
+ *  +--------------+ 3 8900 0000
+ *  | Mem 1 CSRs   |
+ *  +--------------+ 3 8a00 0000
+ *  | Mem 2 CSRs   |
+ *  +--------------+ 3 8b00 0000
+ *  | Mem 3 CSRs   |
+ *  +--------------+ 3 8c00 0000
+ *  | Mem Reserved |
+ *  +--------------+ 3 8e00 0000
+ *  | PCI Bridge   |
+ *  +--------------+ 3 8f00 0000
+ *  | Expansion IO |
+ *  +--------------+ 3 9000 0000
+ *
+ *
+ */
+#define T2_CPU0_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
+#define T2_CPU1_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
+#define T2_CPU2_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
+#define T2_CPU3_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
+
+#define T2_CPUn_BASE(n)		(T2_CPU0_BASE + (((n)&3) * 0x001000000L))
+
+#define T2_MEM0_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
+#define T2_MEM1_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
+#define T2_MEM2_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
+#define T2_MEM3_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
+
+
+/*
+ * Sable CPU Module CSRS
+ *
+ * These are CSRs for hardware other than the CPU chip on the CPU module.
+ * The CPU module has Backup Cache control logic, Cbus control logic, and
+ * interrupt control logic on it.  There is a duplicate tag store to speed
+ * up maintaining cache coherency.
+ */
+
+struct sable_cpu_csr {
+  unsigned long bcc;     long fill_00[3]; /* Backup Cache Control */
+  unsigned long bcce;    long fill_01[3]; /* Backup Cache Correctable Error */
+  unsigned long bccea;   long fill_02[3]; /* B-Cache Corr Err Address Latch */
+  unsigned long bcue;    long fill_03[3]; /* B-Cache Uncorrectable Error */
+  unsigned long bcuea;   long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
+  unsigned long dter;    long fill_05[3]; /* Duplicate Tag Error */
+  unsigned long cbctl;   long fill_06[3]; /* CBus Control */
+  unsigned long cbe;     long fill_07[3]; /* CBus Error */
+  unsigned long cbeal;   long fill_08[3]; /* CBus Error Addr Latch low */
+  unsigned long cbeah;   long fill_09[3]; /* CBus Error Addr Latch high */
+  unsigned long pmbx;    long fill_10[3]; /* Processor Mailbox */
+  unsigned long ipir;    long fill_11[3]; /* Inter-Processor Int Request */
+  unsigned long sic;     long fill_12[3]; /* System Interrupt Clear */
+  unsigned long adlk;    long fill_13[3]; /* Address Lock (LDxL/STxC) */
+  unsigned long madrl;   long fill_14[3]; /* CBus Miss Address */
+  unsigned long rev;     long fill_15[3]; /* CMIC Revision */
+};
+
+/*
+ * Data structure for handling T2 machine checks:
+ */
+struct el_t2_frame_header {
+	unsigned int	elcf_fid;	/* Frame ID (from above) */
+	unsigned int	elcf_size;	/* Size of frame in bytes */
+};
+
+struct el_t2_procdata_mcheck {
+	unsigned long	elfmc_paltemp[32];	/* PAL TEMP REGS. */
+	/* EV4-specific fields */
+	unsigned long	elfmc_exc_addr;	/* Addr of excepting insn. */
+	unsigned long	elfmc_exc_sum;	/* Summary of arith traps. */
+	unsigned long	elfmc_exc_mask;	/* Exception mask (from exc_sum). */
+	unsigned long	elfmc_iccsr;	/* IBox hardware enables. */
+	unsigned long	elfmc_pal_base;	/* Base address for PALcode. */
+	unsigned long	elfmc_hier;	/* Hardware Interrupt Enable. */
+	unsigned long	elfmc_hirr;	/* Hardware Interrupt Request. */
+	unsigned long	elfmc_mm_csr;	/* D-stream fault info. */
+	unsigned long	elfmc_dc_stat;	/* D-cache status (ECC/Parity Err). */
+	unsigned long	elfmc_dc_addr;	/* EV3 Phys Addr for ECC/DPERR. */
+	unsigned long	elfmc_abox_ctl;	/* ABox Control Register. */
+	unsigned long	elfmc_biu_stat;	/* BIU Status. */
+	unsigned long	elfmc_biu_addr;	/* BUI Address. */
+	unsigned long	elfmc_biu_ctl;	/* BIU Control. */
+	unsigned long	elfmc_fill_syndrome; /* For correcting ECC errors. */
+	unsigned long	elfmc_fill_addr;/* Cache block which was being read. */
+	unsigned long	elfmc_va;	/* Effective VA of fault or miss. */
+	unsigned long	elfmc_bc_tag;	/* Backup Cache Tag Probe Results. */
+};
+
+/*
+ * Sable processor specific Machine Check Data segment.
+ */
+
+struct el_t2_logout_header {
+	unsigned int	elfl_size;	/* size in bytes of logout area. */
+	unsigned int	elfl_sbz1:31;	/* Should be zero. */
+	unsigned int	elfl_retry:1;	/* Retry flag. */
+	unsigned int	elfl_procoffset; /* Processor-specific offset. */
+	unsigned int	elfl_sysoffset;	 /* Offset of system-specific. */
+	unsigned int	elfl_error_type;	/* PAL error type code. */
+	unsigned int	elfl_frame_rev;		/* PAL Frame revision. */
+};
+struct el_t2_sysdata_mcheck {
+	unsigned long    elcmc_bcc;	      /* CSR 0 */
+	unsigned long    elcmc_bcce;	      /* CSR 1 */
+	unsigned long    elcmc_bccea;      /* CSR 2 */
+	unsigned long    elcmc_bcue;	      /* CSR 3 */
+	unsigned long    elcmc_bcuea;      /* CSR 4 */
+	unsigned long    elcmc_dter;	      /* CSR 5 */
+	unsigned long    elcmc_cbctl;      /* CSR 6 */
+	unsigned long    elcmc_cbe;	      /* CSR 7 */
+	unsigned long    elcmc_cbeal;      /* CSR 8 */
+	unsigned long    elcmc_cbeah;      /* CSR 9 */
+	unsigned long    elcmc_pmbx;	      /* CSR 10 */
+	unsigned long    elcmc_ipir;	      /* CSR 11 */
+	unsigned long    elcmc_sic;	      /* CSR 12 */
+	unsigned long    elcmc_adlk;	      /* CSR 13 */
+	unsigned long    elcmc_madrl;      /* CSR 14 */
+	unsigned long    elcmc_crrev4;     /* CSR 15 */
+};
+
+/*
+ * Sable memory error frame - sable pfms section 3.42
+ */
+struct el_t2_data_memory {
+	struct	el_t2_frame_header elcm_hdr;	/* ID$MEM-FERR = 0x08 */
+	unsigned int  elcm_module;	/* Module id. */
+	unsigned int  elcm_res04;	/* Reserved. */
+	unsigned long elcm_merr;	/* CSR0: Error Reg 1. */
+	unsigned long elcm_mcmd1;	/* CSR1: Command Trap 1. */
+	unsigned long elcm_mcmd2;	/* CSR2: Command Trap 2. */
+	unsigned long elcm_mconf;	/* CSR3: Configuration. */
+	unsigned long elcm_medc1;	/* CSR4: EDC Status 1. */
+	unsigned long elcm_medc2;	/* CSR5: EDC Status 2. */
+	unsigned long elcm_medcc;	/* CSR6: EDC Control. */
+	unsigned long elcm_msctl;	/* CSR7: Stream Buffer Control. */
+	unsigned long elcm_mref;	/* CSR8: Refresh Control. */
+	unsigned long elcm_filter;	/* CSR9: CRD Filter Control. */
+};
+
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.43
+ */
+struct el_t2_data_other_cpu {
+	short	      elco_cpuid;	/* CPU ID */
+	short	      elco_res02[3];
+	unsigned long elco_bcc;	/* CSR 0 */
+	unsigned long elco_bcce;	/* CSR 1 */
+	unsigned long elco_bccea;	/* CSR 2 */
+	unsigned long elco_bcue;	/* CSR 3 */
+	unsigned long elco_bcuea;	/* CSR 4 */
+	unsigned long elco_dter;	/* CSR 5 */
+	unsigned long elco_cbctl;	/* CSR 6 */
+	unsigned long elco_cbe;	/* CSR 7 */
+	unsigned long elco_cbeal;	/* CSR 8 */
+	unsigned long elco_cbeah;	/* CSR 9 */
+	unsigned long elco_pmbx;	/* CSR 10 */
+	unsigned long elco_ipir;	/* CSR 11 */
+	unsigned long elco_sic;	/* CSR 12 */
+	unsigned long elco_adlk;	/* CSR 13 */
+	unsigned long elco_madrl;	/* CSR 14 */
+	unsigned long elco_crrev4;	/* CSR 15 */
+};
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.44
+ */
+struct el_t2_data_t2{
+	struct el_t2_frame_header elct_hdr;	/* ID$T2-FRAME */
+	unsigned long elct_iocsr;	/* IO Control and Status Register */
+	unsigned long elct_cerr1;	/* Cbus Error Register 1 */
+	unsigned long elct_cerr2;	/* Cbus Error Register 2 */
+	unsigned long elct_cerr3;	/* Cbus Error Register 3 */
+	unsigned long elct_perr1;	/* PCI Error Register 1 */
+	unsigned long elct_perr2;	/* PCI Error Register 2 */
+	unsigned long elct_hae0_1;	/* High Address Extension Register 1 */
+	unsigned long elct_hae0_2;	/* High Address Extension Register 2 */
+	unsigned long elct_hbase;	/* High Base Register */
+	unsigned long elct_wbase1;	/* Window Base Register 1 */
+	unsigned long elct_wmask1;	/* Window Mask Register 1 */
+	unsigned long elct_tbase1;	/* Translated Base Register 1 */
+	unsigned long elct_wbase2;	/* Window Base Register 2 */
+	unsigned long elct_wmask2;	/* Window Mask Register 2 */
+	unsigned long elct_tbase2;	/* Translated Base Register 2 */
+	unsigned long elct_tdr0;	/* TLB Data Register 0 */
+	unsigned long elct_tdr1;	/* TLB Data Register 1 */
+	unsigned long elct_tdr2;	/* TLB Data Register 2 */
+	unsigned long elct_tdr3;	/* TLB Data Register 3 */
+	unsigned long elct_tdr4;	/* TLB Data Register 4 */
+	unsigned long elct_tdr5;	/* TLB Data Register 5 */
+	unsigned long elct_tdr6;	/* TLB Data Register 6 */
+	unsigned long elct_tdr7;	/* TLB Data Register 7 */
+};
+
+/*
+ * Sable error log data structure - sable pfms section 3.40
+ */
+struct el_t2_data_corrected {
+	unsigned long elcpb_biu_stat;
+	unsigned long elcpb_biu_addr;
+	unsigned long elcpb_biu_ctl;
+	unsigned long elcpb_fill_syndrome;
+	unsigned long elcpb_fill_addr;
+	unsigned long elcpb_bc_tag;
+};
+
+/*
+ * Sable error log data structure
+ * Note there are 4 memory slots on sable (see t2.h)
+ */
+struct el_t2_frame_mcheck {
+	struct el_t2_frame_header elfmc_header;	/* ID$P-FRAME_MCHECK */
+	struct el_t2_logout_header elfmc_hdr;
+	struct el_t2_procdata_mcheck elfmc_procdata;
+	struct el_t2_sysdata_mcheck elfmc_sysdata;
+	struct el_t2_data_t2 elfmc_t2data;
+	struct el_t2_data_memory elfmc_memdata[4];
+	struct el_t2_frame_header elfmc_footer;	/* empty */
+};
+
+
+/*
+ * Sable error log data structures on memory errors
+ */
+struct el_t2_frame_corrected {
+	struct el_t2_frame_header elfcc_header;	/* ID$P-BC-COR */
+	struct el_t2_logout_header elfcc_hdr;
+	struct el_t2_data_corrected elfcc_procdata;
+/*	struct el_t2_data_t2 elfcc_t2data;		*/
+/*	struct el_t2_data_memory elfcc_memdata[4];	*/
+	struct el_t2_frame_header elfcc_footer;	/* empty */
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * T2 (the core logic PCI/memory support chipset for the SABLE
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+#define vip	volatile int *
+#define vuip	volatile unsigned int *
+#define vulp	volatile unsigned long *
+
+extern inline u8 t2_inb(unsigned long addr)
+{
+	long result = *(vip) ((addr << 5) + T2_IO + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+extern inline void t2_outb(u8 b, unsigned long addr)
+{
+	unsigned long w;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_IO + 0x00) = w;
+	mb();
+}
+
+extern inline u16 t2_inw(unsigned long addr)
+{
+	long result = *(vip) ((addr << 5) + T2_IO + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+extern inline void t2_outw(u16 b, unsigned long addr)
+{
+	unsigned long w;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_IO + 0x08) = w;
+	mb();
+}
+
+extern inline u32 t2_inl(unsigned long addr)
+{
+	return *(vuip) ((addr << 5) + T2_IO + 0x18);
+}
+
+extern inline void t2_outl(u32 b, unsigned long addr)
+{
+	*(vuip) ((addr << 5) + T2_IO + 0x18) = b;
+	mb();
+}
+
+extern inline u64 t2_inq(unsigned long addr)
+{
+	return *(vulp) ((addr << 5) + T2_IO + 0x18);
+}
+
+extern inline void t2_outq(u64 b, unsigned long addr)
+{
+	*(vulp) ((addr << 5) + T2_IO + 0x18) = b;
+	mb();
+}
+
+
+/*
+ * Memory functions.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#ifdef T2_ONE_HAE_WINDOW
+#define t2_set_hae
+#else
+#define t2_set_hae { \
+	unsigned long msb = addr >> 27; \
+	addr &= T2_MEM_R1_MASK; \
+	set_hae(msb); \
+}
+#endif
+
+/*
+ * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
+ *       they may be called directly, rather than through the
+ *       ioreadNN/iowriteNN routines.
+ */
+
+__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
+	return result & 0xffffffffUL;
+}
+
+__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long r0, r1, work;
+
+	t2_set_hae;
+
+	work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+	r0 = *(vuip)(work);
+	r1 = *(vuip)(work + (4 << 5));
+	return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long w;
+
+	t2_set_hae;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
+}
+
+__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long w;
+
+	t2_set_hae;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+
+	t2_set_hae;
+
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
+}
+
+__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long work;
+
+	t2_set_hae;
+
+	work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+	*(vuip)work = b;
+	*(vuip)(work + (4 << 5)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + T2_IO);
+}
+
+__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr, 
+					 unsigned long size)
+{
+	return (void __iomem *)(addr + T2_DENSE_MEM);
+}
+
+__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
+{
+	return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= T2_DENSE_MEM;
+}
+
+/* New-style ioread interface.  The mmio routines are so ugly for T2 that
+   it doesn't make sense to merge the pio and mmio routines.  */
+
+#define IOPORT(OS, NS)							\
+__EXTERN_INLINE u##NS t2_ioread##NS(const void __iomem *xaddr)		\
+{									\
+	if (t2_is_mmio(xaddr))						\
+		return t2_read##OS(xaddr);				\
+	else								\
+		return t2_in##OS((unsigned long)xaddr - T2_IO);		\
+}									\
+__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr)	\
+{									\
+	if (t2_is_mmio(xaddr))						\
+		t2_write##OS(b, xaddr);					\
+	else								\
+		t2_out##OS(b, (unsigned long)xaddr - T2_IO);		\
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+IOPORT(q, 64)
+
+#undef IOPORT
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		t2
+#define t2_trivial_rw_bw	0
+#define t2_trivial_rw_lq	0
+#define t2_trivial_io_bw	0
+#define t2_trivial_io_lq	0
+#define t2_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_T2__H__ */
diff --git a/arch/alpha/include/asm/core_titan.h b/arch/alpha/include/asm/core_titan.h
new file mode 100644
index 000000000..dcc02682c
--- /dev/null
+++ b/arch/alpha/include/asm/core_titan.h
@@ -0,0 +1,410 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TITAN__H__
+#define __ALPHA_TITAN__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TITAN is the internal names for a core logic chipset which provides
+ * memory controller and PCI/AGP access for 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Titan Chipset Engineering Specification
+ * Revision 0.12
+ * 13 July 1999
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this?  */
+#ifdef USE_48_BIT_KSEG
+#define TI_BIAS 0x80000000000UL
+#else
+#define TI_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} titan_64;
+
+typedef struct {
+	titan_64	csc;
+	titan_64	mtr;
+	titan_64	misc;
+	titan_64	mpd;
+	titan_64	aar0;
+	titan_64	aar1;
+	titan_64	aar2;
+	titan_64	aar3;
+	titan_64	dim0;
+	titan_64	dim1;
+	titan_64	dir0;
+	titan_64	dir1;
+	titan_64	drir;
+	titan_64	prben;
+	titan_64	iic0;
+	titan_64	iic1;
+	titan_64	mpr0;
+	titan_64	mpr1;
+	titan_64	mpr2;
+	titan_64	mpr3;
+	titan_64	rsvd[2];
+	titan_64	ttr;
+	titan_64	tdr;
+	titan_64	dim2;
+	titan_64	dim3;
+	titan_64	dir2;
+	titan_64	dir3;
+	titan_64	iic2;
+	titan_64	iic3;
+	titan_64	pwr;
+	titan_64	reserved[17];
+	titan_64	cmonctla;
+	titan_64	cmonctlb;
+	titan_64	cmoncnt01;
+	titan_64	cmoncnt23;
+	titan_64	cpen;
+} titan_cchip;
+
+typedef struct {
+	titan_64	dsc;
+	titan_64	str;
+	titan_64	drev;
+	titan_64	dsc2;
+} titan_dchip;
+
+typedef struct {
+	titan_64	wsba[4];
+	titan_64	wsm[4];
+	titan_64	tba[4];
+	titan_64	pctl;
+	titan_64	plat;
+	titan_64	reserved0[2];
+	union {
+		struct {
+			titan_64	serror;
+			titan_64	serren;
+			titan_64	serrset;
+			titan_64	reserved0;
+			titan_64	gperror;
+			titan_64	gperren;
+			titan_64	gperrset;
+			titan_64	reserved1;
+			titan_64	gtlbiv;
+			titan_64	gtlbia;
+			titan_64	reserved2[2];
+			titan_64	sctl;
+			titan_64	reserved3[3];
+		} g;
+		struct {
+			titan_64	agperror;
+			titan_64	agperren;
+			titan_64	agperrset;
+			titan_64	agplastwr;
+			titan_64	aperror;
+			titan_64	aperren;
+			titan_64	aperrset;
+			titan_64	reserved0;
+			titan_64	atlbiv;
+			titan_64	atlbia;
+			titan_64	reserved1[6];
+		} a;
+	} port_specific;
+	titan_64	sprst;
+	titan_64	reserved1[31];
+} titan_pachip_port;
+
+typedef struct {
+	titan_pachip_port	g_port;
+	titan_pachip_port	a_port;
+} titan_pachip;
+
+#define TITAN_cchip	((titan_cchip  *)(IDENT_ADDR+TI_BIAS+0x1A0000000UL))
+#define TITAN_dchip    	((titan_dchip  *)(IDENT_ADDR+TI_BIAS+0x1B0000800UL))
+#define TITAN_pachip0 	((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x180000000UL))
+#define TITAN_pachip1 	((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x380000000UL))
+extern unsigned TITAN_agp;
+extern int TITAN_bootcpu;
+
+/*
+ * TITAN PA-chip Window Space Base Address register.
+ * (WSBA[0-2])
+ */
+#define wsba_m_ena 0x1                
+#define wsba_m_sg 0x2
+#define wsba_m_addr 0xFFF00000  
+#define wmask_k_sz1gb 0x3FF00000                   
+union TPAchipWSBA {
+	struct  {
+		unsigned wsba_v_ena : 1;
+		unsigned wsba_v_sg : 1;
+		unsigned wsba_v_rsvd1 : 18;
+		unsigned wsba_v_addr : 12;
+		unsigned wsba_v_rsvd2 : 32;
+        } wsba_r_bits;
+	int wsba_q_whole [2];
+};
+
+/*
+ * TITAN PA-chip Control Register
+ * This definition covers both the G-Port GPCTL and the A-PORT APCTL.
+ * Bits <51:0> are the same in both cases. APCTL<63:52> are only 
+ * applicable to AGP.
+ */
+#define pctl_m_fbtb 			0x00000001
+#define pctl_m_thdis 			0x00000002
+#define pctl_m_chaindis 		0x00000004
+#define pctl_m_tgtlat 			0x00000018
+#define pctl_m_hole  	  		0x00000020
+#define pctl_m_mwin 	  		0x00000040
+#define pctl_m_arbena 	  		0x00000080
+#define pctl_m_prigrp 	  		0x0000FF00
+#define pctl_m_ppri 	  		0x00010000
+#define pctl_m_pcispd66  		0x00020000
+#define pctl_m_cngstlt	  		0x003C0000
+#define pctl_m_ptpdesten 		0x3FC00000
+#define pctl_m_dpcen			0x40000000
+#define pctl_m_apcen		0x0000000080000000UL
+#define pctl_m_dcrtv		0x0000000300000000UL
+#define pctl_m_en_stepping	0x0000000400000000UL
+#define apctl_m_rsvd1		0x000FFFF800000000UL
+#define apctl_m_agp_rate	0x0030000000000000UL
+#define apctl_m_agp_sba_en	0x0040000000000000UL
+#define apctl_m_agp_en		0x0080000000000000UL
+#define apctl_m_rsvd2		0x0100000000000000UL
+#define apctl_m_agp_present	0x0200000000000000UL
+#define apctl_agp_hp_rd		0x1C00000000000000UL
+#define apctl_agp_lp_rd		0xE000000000000000UL
+#define gpctl_m_rsvd		0xFFFFFFF800000000UL
+union TPAchipPCTL {
+	struct {
+		unsigned pctl_v_fbtb : 1;		/* A/G [0]     */
+		unsigned pctl_v_thdis : 1;		/* A/G [1]     */
+		unsigned pctl_v_chaindis : 1;		/* A/G [2]     */
+		unsigned pctl_v_tgtlat : 2;		/* A/G [4:3]   */
+		unsigned pctl_v_hole : 1;		/* A/G [5]     */
+		unsigned pctl_v_mwin : 1;		/* A/G [6]     */
+		unsigned pctl_v_arbena : 1;		/* A/G [7]     */
+		unsigned pctl_v_prigrp : 8;		/* A/G [15:8]  */
+		unsigned pctl_v_ppri : 1;		/* A/G [16]    */
+		unsigned pctl_v_pcispd66 : 1;		/* A/G [17]    */
+		unsigned pctl_v_cngstlt : 4;		/* A/G [21:18] */
+		unsigned pctl_v_ptpdesten : 8;		/* A/G [29:22] */
+		unsigned pctl_v_dpcen : 1;		/* A/G [30]    */
+		unsigned pctl_v_apcen : 1;		/* A/G [31]    */
+		unsigned pctl_v_dcrtv : 2;		/* A/G [33:32] */
+		unsigned pctl_v_en_stepping :1;		/* A/G [34]    */
+		unsigned apctl_v_rsvd1 : 17;		/* A   [51:35] */
+		unsigned apctl_v_agp_rate : 2;		/* A   [53:52] */
+		unsigned apctl_v_agp_sba_en : 1;	/* A   [54]    */
+		unsigned apctl_v_agp_en : 1;		/* A   [55]    */
+		unsigned apctl_v_rsvd2 : 1;		/* A   [56]    */
+		unsigned apctl_v_agp_present : 1;	/* A   [57]    */
+		unsigned apctl_v_agp_hp_rd : 3;		/* A   [60:58] */
+		unsigned apctl_v_agp_lp_rd : 3;		/* A   [63:61] */
+	} pctl_r_bits;
+	unsigned int pctl_l_whole [2];
+	unsigned long pctl_q_whole;
+};
+
+/*
+ * SERROR / SERREN / SERRSET
+ */
+union TPAchipSERR {
+	struct {
+		unsigned serr_v_lost_uecc : 1;		/* [0]		*/
+		unsigned serr_v_uecc : 1;		/* [1]  	*/
+		unsigned serr_v_cre : 1;		/* [2]		*/
+		unsigned serr_v_nxio : 1;		/* [3]		*/
+		unsigned serr_v_lost_cre : 1;		/* [4]		*/
+		unsigned serr_v_rsvd0 : 10;		/* [14:5]	*/
+		unsigned serr_v_addr : 32;		/* [46:15]	*/
+		unsigned serr_v_rsvd1 : 5;		/* [51:47]	*/
+		unsigned serr_v_source : 2;		/* [53:52]	*/
+		unsigned serr_v_cmd : 2;		/* [55:54]	*/
+		unsigned serr_v_syn : 8;		/* [63:56]	*/
+	} serr_r_bits;
+	unsigned int serr_l_whole[2];
+	unsigned long serr_q_whole;
+};
+
+/*
+ * GPERROR / APERROR / GPERREN / APERREN / GPERRSET / APERRSET
+ */
+union TPAchipPERR {
+	struct {
+		unsigned long perr_v_lost : 1;	     	/* [0]		*/
+		unsigned long perr_v_serr : 1;		/* [1]		*/
+		unsigned long perr_v_perr : 1;		/* [2]		*/
+		unsigned long perr_v_dcrto : 1;		/* [3]		*/
+		unsigned long perr_v_sge : 1;		/* [4]		*/
+		unsigned long perr_v_ape : 1;		/* [5]		*/
+		unsigned long perr_v_ta : 1;		/* [6]		*/
+		unsigned long perr_v_dpe : 1;		/* [7]		*/
+		unsigned long perr_v_nds : 1;		/* [8]		*/
+		unsigned long perr_v_iptpr : 1;		/* [9]		*/
+		unsigned long perr_v_iptpw : 1;		/* [10] 	*/
+		unsigned long perr_v_rsvd0 : 3;		/* [13:11]	*/
+		unsigned long perr_v_addr : 33;		/* [46:14]	*/
+		unsigned long perr_v_dac : 1;		/* [47]		*/
+		unsigned long perr_v_mwin : 1;		/* [48]		*/
+		unsigned long perr_v_rsvd1 : 3;		/* [51:49]	*/
+		unsigned long perr_v_cmd : 4;		/* [55:52]	*/
+		unsigned long perr_v_rsvd2 : 8;		/* [63:56]	*/
+	} perr_r_bits;
+	unsigned int perr_l_whole[2];
+	unsigned long perr_q_whole;
+};
+
+/*
+ * AGPERROR / AGPERREN / AGPERRSET
+ */
+union TPAchipAGPERR {
+	struct {
+		unsigned agperr_v_lost : 1;		/* [0]		*/
+		unsigned agperr_v_lpqfull : 1;		/* [1]		*/
+		unsigned apgerr_v_hpqfull : 1;		/* [2]		*/
+		unsigned agperr_v_rescmd : 1;		/* [3]		*/
+		unsigned agperr_v_ipte : 1;		/* [4]		*/
+		unsigned agperr_v_ptp :	1;      	/* [5]		*/
+		unsigned agperr_v_nowindow : 1;		/* [6]		*/
+		unsigned agperr_v_rsvd0 : 8;		/* [14:7]	*/
+		unsigned agperr_v_addr : 32;		/* [46:15]	*/
+		unsigned agperr_v_rsvd1 : 1;		/* [47]		*/
+		unsigned agperr_v_dac : 1;		/* [48]		*/
+		unsigned agperr_v_mwin : 1;		/* [49]		*/
+		unsigned agperr_v_cmd : 3;		/* [52:50]	*/
+		unsigned agperr_v_length : 6;		/* [58:53]	*/
+		unsigned agperr_v_fence : 1;		/* [59]		*/
+		unsigned agperr_v_rsvd2 : 4;		/* [63:60]	*/
+	} agperr_r_bits;
+	unsigned int agperr_l_whole[2];
+	unsigned long agperr_q_whole;
+};
+/*
+ * Memory spaces:
+ * Hose numbers are assigned as follows:
+ *		0 - pachip 0 / G Port
+ *		1 - pachip 1 / G Port
+ * 		2 - pachip 0 / A Port
+ *      	3 - pachip 1 / A Port
+ */
+#define TITAN_HOSE_SHIFT       (33) 
+#define TITAN_HOSE(h)		(((unsigned long)(h)) << TITAN_HOSE_SHIFT)
+#define TITAN_BASE		(IDENT_ADDR + TI_BIAS)
+#define TITAN_MEM(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x000000000UL)
+#define _TITAN_IACK_SC(h)    	(TITAN_BASE+TITAN_HOSE(h)+0x1F8000000UL)
+#define TITAN_IO(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x1FC000000UL)
+#define TITAN_CONF(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x1FE000000UL)
+
+#define TITAN_HOSE_MASK		TITAN_HOSE(3)
+#define TITAN_IACK_SC	     	_TITAN_IACK_SC(0) /* hack! */
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TITAN_IO_BIAS		TITAN_IO(0)
+#define TITAN_MEM_BIAS		TITAN_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TITAN_IO_SPACE		(TITAN_CONF(0) - TITAN_IO(0))
+
+/* TIG Space */
+#define TITAN_TIG_SPACE		(TITAN_BASE + 0x100000000UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+/* ??? Just a guess.  Ought to confirm it hasn't been moved.  */
+#define TITAN_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling TITAN machine checks:
+ */
+#define SCB_Q_SYSERR	0x620
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+#define SCB_Q_SYSEVENT	0x680	/* environmental / system management */
+struct el_TITAN_sysdata_mcheck {
+	u64 summary;	/* 0x00 */
+	u64 c_dirx;	/* 0x08 */
+	u64 c_misc;	/* 0x10 */
+	u64 p0_serror;	/* 0x18 */
+	u64 p0_gperror; /* 0x20 */
+	u64 p0_aperror; /* 0x28 */
+	u64 p0_agperror;/* 0x30 */
+	u64 p1_serror;	/* 0x38 */
+	u64 p1_gperror; /* 0x40 */
+	u64 p1_aperror; /* 0x48 */
+	u64 p1_agperror;/* 0x50 */
+};
+
+/*
+ * System area for a privateer 680 environmental/system management mcheck 
+ */
+struct el_PRIVATEER_envdata_mcheck {
+	u64 summary;	/* 0x00 */
+	u64 c_dirx;	/* 0x08 */
+	u64 smir;	/* 0x10 */
+	u64 cpuir;	/* 0x18 */
+	u64 psir;	/* 0x20 */
+	u64 fault;	/* 0x28 */
+	u64 sys_doors;	/* 0x30 */
+	u64 temp_warn;	/* 0x38 */
+	u64 fan_ctrl;	/* 0x40 */
+	u64 code;	/* 0x48 */
+	u64 reserved;	/* 0x50 */
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TITAN, a 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI/AGP memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+extern void __iomem *titan_ioportmap(unsigned long addr);
+extern void __iomem *titan_ioremap(unsigned long addr, unsigned long size);
+extern void titan_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int titan_is_ioaddr(unsigned long addr)
+{
+	return addr >= TITAN_BASE;
+}
+
+extern int titan_is_mmio(const volatile void __iomem *addr);
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		titan
+#define titan_trivial_rw_bw	1
+#define titan_trivial_rw_lq	1
+#define titan_trivial_io_bw	1
+#define titan_trivial_io_lq	1
+#define titan_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TITAN__H__ */
diff --git a/arch/alpha/include/asm/core_tsunami.h b/arch/alpha/include/asm/core_tsunami.h
new file mode 100644
index 000000000..3391e9575
--- /dev/null
+++ b/arch/alpha/include/asm/core_tsunami.h
@@ -0,0 +1,335 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TSUNAMI__H__
+#define __ALPHA_TSUNAMI__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TSUNAMI/TYPHOON are the internal names for the core logic chipset which
+ * provides memory controller and PCI access for the 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Tsunami System Programmers Manual
+ * Preliminary, Chapters 2-5
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this?  */
+#ifdef USE_48_BIT_KSEG
+#define TS_BIAS 0x80000000000UL
+#else
+#define TS_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} tsunami_64;
+
+typedef struct {
+	tsunami_64	csc;
+	tsunami_64	mtr;
+	tsunami_64	misc;
+	tsunami_64	mpd;
+	tsunami_64	aar0;
+	tsunami_64	aar1;
+	tsunami_64	aar2;
+	tsunami_64	aar3;
+	tsunami_64	dim0;
+	tsunami_64	dim1;
+	tsunami_64	dir0;
+	tsunami_64	dir1;
+	tsunami_64	drir;
+	tsunami_64	prben;
+	tsunami_64	iic;	/* a.k.a. iic0 */
+	tsunami_64	wdr;	/* a.k.a. iic1 */
+	tsunami_64	mpr0;
+	tsunami_64	mpr1;
+	tsunami_64	mpr2;
+	tsunami_64	mpr3;
+	tsunami_64	mctl;
+	tsunami_64	__pad1;
+	tsunami_64	ttr;
+	tsunami_64	tdr;
+	tsunami_64	dim2;
+	tsunami_64	dim3;
+	tsunami_64	dir2;
+	tsunami_64	dir3;
+	tsunami_64	iic2;
+	tsunami_64	iic3;
+} tsunami_cchip;
+
+typedef struct {
+	tsunami_64	dsc;
+	tsunami_64	str;
+	tsunami_64	drev;
+} tsunami_dchip;
+
+typedef struct {
+	tsunami_64	wsba[4];
+	tsunami_64	wsm[4];
+	tsunami_64	tba[4];
+	tsunami_64	pctl;
+	tsunami_64	plat;
+	tsunami_64	reserved;
+	tsunami_64	perror;
+	tsunami_64	perrmask;
+	tsunami_64	perrset;
+	tsunami_64	tlbiv;
+	tsunami_64	tlbia;
+	tsunami_64	pmonctl;
+	tsunami_64	pmoncnt;
+} tsunami_pchip;
+
+#define TSUNAMI_cchip  ((tsunami_cchip *)(IDENT_ADDR+TS_BIAS+0x1A0000000UL))
+#define TSUNAMI_dchip  ((tsunami_dchip *)(IDENT_ADDR+TS_BIAS+0x1B0000800UL))
+#define TSUNAMI_pchip0 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x180000000UL))
+#define TSUNAMI_pchip1 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x380000000UL))
+extern int TSUNAMI_bootcpu;
+
+/*
+ * TSUNAMI Pchip Error register.
+ */
+
+#define perror_m_lost 0x1
+#define perror_m_serr 0x2
+#define perror_m_perr 0x4
+#define perror_m_dcrto 0x8
+#define perror_m_sge 0x10
+#define perror_m_ape 0x20
+#define perror_m_ta 0x40
+#define perror_m_rdpe 0x80
+#define perror_m_nds 0x100
+#define perror_m_rto 0x200
+#define perror_m_uecc 0x400
+#define perror_m_cre 0x800
+#define perror_m_addrl 0xFFFFFFFF0000UL
+#define perror_m_addrh 0x7000000000000UL
+#define perror_m_cmd 0xF0000000000000UL
+#define perror_m_syn 0xFF00000000000000UL
+union TPchipPERROR {   
+	struct  {
+		unsigned int perror_v_lost : 1;
+		unsigned perror_v_serr : 1;
+		unsigned perror_v_perr : 1;
+		unsigned perror_v_dcrto : 1;
+		unsigned perror_v_sge : 1;
+		unsigned perror_v_ape : 1;
+		unsigned perror_v_ta : 1;
+		unsigned perror_v_rdpe : 1;
+		unsigned perror_v_nds : 1;
+		unsigned perror_v_rto : 1;
+		unsigned perror_v_uecc : 1;
+		unsigned perror_v_cre : 1;                 
+		unsigned perror_v_rsvd1 : 4;
+		unsigned perror_v_addrl : 32;
+		unsigned perror_v_addrh : 3;
+		unsigned perror_v_rsvd2 : 1;
+		unsigned perror_v_cmd : 4;
+		unsigned perror_v_syn : 8;
+	} perror_r_bits;
+	int perror_q_whole [2];
+};                       
+
+/*
+ * TSUNAMI Pchip Window Space Base Address register.
+ */
+#define wsba_m_ena 0x1                
+#define wsba_m_sg 0x2
+#define wsba_m_ptp 0x4
+#define wsba_m_addr 0xFFF00000  
+#define wmask_k_sz1gb 0x3FF00000                   
+union TPchipWSBA {
+	struct  {
+		unsigned wsba_v_ena : 1;
+		unsigned wsba_v_sg : 1;
+		unsigned wsba_v_ptp : 1;
+		unsigned wsba_v_rsvd1 : 17;
+		unsigned wsba_v_addr : 12;
+		unsigned wsba_v_rsvd2 : 32;
+	} wsba_r_bits;
+	int wsba_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Control Register
+ */
+#define pctl_m_fdsc 0x1
+#define pctl_m_fbtb 0x2
+#define pctl_m_thdis 0x4
+#define pctl_m_chaindis 0x8
+#define pctl_m_tgtlat 0x10
+#define pctl_m_hole 0x20
+#define pctl_m_mwin 0x40
+#define pctl_m_arbena 0x80
+#define pctl_m_prigrp 0x7F00
+#define pctl_m_ppri 0x8000
+#define pctl_m_rsvd1 0x30000
+#define pctl_m_eccen 0x40000
+#define pctl_m_padm 0x80000
+#define pctl_m_cdqmax 0xF00000
+#define pctl_m_rev 0xFF000000
+#define pctl_m_crqmax 0xF00000000UL
+#define pctl_m_ptpmax 0xF000000000UL
+#define pctl_m_pclkx 0x30000000000UL
+#define pctl_m_fdsdis 0x40000000000UL
+#define pctl_m_fdwdis 0x80000000000UL
+#define pctl_m_ptevrfy 0x100000000000UL
+#define pctl_m_rpp 0x200000000000UL
+#define pctl_m_pid 0xC00000000000UL
+#define pctl_m_rsvd2 0xFFFF000000000000UL
+
+union TPchipPCTL {
+	struct {
+		unsigned pctl_v_fdsc : 1;
+		unsigned pctl_v_fbtb : 1;
+		unsigned pctl_v_thdis : 1;
+		unsigned pctl_v_chaindis : 1;
+		unsigned pctl_v_tgtlat : 1;
+		unsigned pctl_v_hole : 1;
+		unsigned pctl_v_mwin : 1;
+		unsigned pctl_v_arbena : 1;
+		unsigned pctl_v_prigrp : 7;
+		unsigned pctl_v_ppri : 1;
+		unsigned pctl_v_rsvd1 : 2;
+		unsigned pctl_v_eccen : 1;
+		unsigned pctl_v_padm : 1;
+		unsigned pctl_v_cdqmax : 4;
+		unsigned pctl_v_rev : 8;
+		unsigned pctl_v_crqmax : 4;
+		unsigned pctl_v_ptpmax : 4;
+		unsigned pctl_v_pclkx : 2;
+		unsigned pctl_v_fdsdis : 1;
+		unsigned pctl_v_fdwdis : 1;
+		unsigned pctl_v_ptevrfy : 1;
+		unsigned pctl_v_rpp : 1;
+		unsigned pctl_v_pid : 2;
+		unsigned pctl_v_rsvd2 : 16;
+	} pctl_r_bits;
+	int pctl_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Error Mask Register.
+ */
+#define perrmask_m_lost 0x1
+#define perrmask_m_serr 0x2
+#define perrmask_m_perr 0x4
+#define perrmask_m_dcrto 0x8
+#define perrmask_m_sge 0x10
+#define perrmask_m_ape 0x20
+#define perrmask_m_ta 0x40
+#define perrmask_m_rdpe 0x80
+#define perrmask_m_nds 0x100
+#define perrmask_m_rto 0x200
+#define perrmask_m_uecc 0x400
+#define perrmask_m_cre 0x800
+#define perrmask_m_rsvd 0xFFFFFFFFFFFFF000UL
+union TPchipPERRMASK {   
+	struct  {
+		unsigned int perrmask_v_lost : 1;
+		unsigned perrmask_v_serr : 1;
+		unsigned perrmask_v_perr : 1;
+		unsigned perrmask_v_dcrto : 1;
+		unsigned perrmask_v_sge : 1;
+		unsigned perrmask_v_ape : 1;
+		unsigned perrmask_v_ta : 1;
+		unsigned perrmask_v_rdpe : 1;
+		unsigned perrmask_v_nds : 1;
+		unsigned perrmask_v_rto : 1;
+		unsigned perrmask_v_uecc : 1;
+		unsigned perrmask_v_cre : 1;                 
+		unsigned perrmask_v_rsvd1 : 20;
+		unsigned perrmask_v_rsvd2 : 32;
+	} perrmask_r_bits;
+	int perrmask_q_whole [2];
+};                       
+
+/*
+ * Memory spaces:
+ */
+#define TSUNAMI_HOSE(h)		(((unsigned long)(h)) << 33)
+#define TSUNAMI_BASE		(IDENT_ADDR + TS_BIAS)
+
+#define TSUNAMI_MEM(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x000000000UL)
+#define _TSUNAMI_IACK_SC(h)	(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1F8000000UL)
+#define TSUNAMI_IO(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FC000000UL)
+#define TSUNAMI_CONF(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FE000000UL)
+
+#define TSUNAMI_IACK_SC		_TSUNAMI_IACK_SC(0) /* hack! */
+
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TSUNAMI_IO_BIAS          TSUNAMI_IO(0)
+#define TSUNAMI_MEM_BIAS         TSUNAMI_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TSUNAMI_IO_SPACE	(TSUNAMI_CONF(0) - TSUNAMI_IO(0))
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define TSUNAMI_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling TSUNAMI machine checks:
+ */
+struct el_TSUNAMI_sysdata_mcheck {
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+extern void __iomem *tsunami_ioportmap(unsigned long addr);
+extern void __iomem *tsunami_ioremap(unsigned long addr, unsigned long size);
+__EXTERN_INLINE int tsunami_is_ioaddr(unsigned long addr)
+{
+	return addr >= TSUNAMI_BASE;
+}
+
+__EXTERN_INLINE int tsunami_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		tsunami
+#define tsunami_trivial_rw_bw	1
+#define tsunami_trivial_rw_lq	1
+#define tsunami_trivial_io_bw	1
+#define tsunami_trivial_io_lq	1
+#define tsunami_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TSUNAMI__H__ */
diff --git a/arch/alpha/include/asm/core_wildfire.h b/arch/alpha/include/asm/core_wildfire.h
new file mode 100644
index 000000000..5d1b37f41
--- /dev/null
+++ b/arch/alpha/include/asm/core_wildfire.h
@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_WILDFIRE__H__
+#define __ALPHA_WILDFIRE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+#define WILDFIRE_MAX_QBB	8	/* more than 8 requires other mods */
+#define WILDFIRE_PCA_PER_QBB	4
+#define WILDFIRE_IRQ_PER_PCA	64
+
+#define WILDFIRE_NR_IRQS \
+  (WILDFIRE_MAX_QBB * WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+
+extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
+extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
+#define QBB_MAP_EMPTY	0xff
+
+extern unsigned long wildfire_hard_qbb_mask;
+extern unsigned long wildfire_soft_qbb_mask;
+extern unsigned long wildfire_gp_mask;
+extern unsigned long wildfire_hs_mask;
+extern unsigned long wildfire_iop_mask;
+extern unsigned long wildfire_ior_mask;
+extern unsigned long wildfire_pca_mask;
+extern unsigned long wildfire_cpu_mask;
+extern unsigned long wildfire_mem_mask;
+
+#define WILDFIRE_QBB_EXISTS(qbbno) (wildfire_soft_qbb_mask & (1 << (qbbno)))
+
+#define WILDFIRE_MEM_EXISTS(qbbno) (wildfire_mem_mask & (0xf << ((qbbno) << 2)))
+
+#define WILDFIRE_PCA_EXISTS(qbbno, pcano) \
+		(wildfire_pca_mask & (1 << (((qbbno) << 2) + (pcano))))
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} wildfire_64;
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(256)));
+} wildfire_256;
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(2048)));
+} wildfire_2k;
+
+typedef struct {
+	wildfire_64	qsd_whami;
+	wildfire_64	qsd_rev;
+	wildfire_64	qsd_port_present;
+	wildfire_64	qsd_port_active;
+	wildfire_64	qsd_fault_ena;
+	wildfire_64	qsd_cpu_int_ena;
+	wildfire_64	qsd_mem_config;
+	wildfire_64	qsd_err_sum;
+	wildfire_64	ce_sum[4];
+	wildfire_64	dev_init[4];
+	wildfire_64	it_int[4];
+	wildfire_64	ip_int[4];
+	wildfire_64	uce_sum[4];
+	wildfire_64	se_sum__non_dev_int[4];
+	wildfire_64	scratch[4];
+	wildfire_64	qsd_timer;
+	wildfire_64	qsd_diag;
+} wildfire_qsd;
+
+typedef struct {
+	wildfire_256	qsd_whami;
+	wildfire_256	__pad1;
+	wildfire_256	ce_sum;
+	wildfire_256	dev_init;
+	wildfire_256	it_int;
+	wildfire_256	ip_int;
+	wildfire_256	uce_sum;
+	wildfire_256	se_sum;
+} wildfire_fast_qsd;
+
+typedef struct {
+	wildfire_2k	qsa_qbb_id;
+	wildfire_2k	__pad1;
+	wildfire_2k	qsa_port_ena;
+	wildfire_2k	qsa_scratch;
+	wildfire_2k	qsa_config[5];
+	wildfire_2k	qsa_ref_int;
+	wildfire_2k	qsa_qbb_pop[2];
+	wildfire_2k	qsa_dtag_fc;
+	wildfire_2k	__pad2[3];
+	wildfire_2k	qsa_diag;
+	wildfire_2k	qsa_diag_lock[4];
+	wildfire_2k	__pad3[11];
+	wildfire_2k	qsa_cpu_err_sum;
+	wildfire_2k	qsa_misc_err_sum;
+	wildfire_2k	qsa_tmo_err_sum;
+	wildfire_2k	qsa_err_ena;
+	wildfire_2k	qsa_tmo_config;
+	wildfire_2k	qsa_ill_cmd_err_sum;
+	wildfire_2k	__pad4[26];
+	wildfire_2k	qsa_busy_mask;
+	wildfire_2k	qsa_arr_valid;
+	wildfire_2k	__pad5[2];
+	wildfire_2k	qsa_port_map[4];
+	wildfire_2k	qsa_arr_addr[8];
+	wildfire_2k	qsa_arr_mask[8];
+} wildfire_qsa;
+
+typedef struct {
+	wildfire_64	ioa_config;
+	wildfire_64	iod_config;
+	wildfire_64	iop_switch_credits;
+	wildfire_64	__pad1;
+	wildfire_64	iop_hose_credits;
+	wildfire_64	__pad2[11];
+	struct {
+		wildfire_64	__pad3;
+		wildfire_64	init;
+	} iop_hose[4];
+	wildfire_64	ioa_hose_0_ctrl;
+	wildfire_64	iod_hose_0_ctrl;
+	wildfire_64	ioa_hose_1_ctrl;
+	wildfire_64	iod_hose_1_ctrl;
+	wildfire_64	ioa_hose_2_ctrl;
+	wildfire_64	iod_hose_2_ctrl;
+	wildfire_64	ioa_hose_3_ctrl;
+	wildfire_64	iod_hose_3_ctrl;
+	struct {
+		wildfire_64	target;
+		wildfire_64	__pad4;
+	} iop_dev_int[4];
+
+	wildfire_64	iop_err_int_target;
+	wildfire_64	__pad5[7];
+	wildfire_64	iop_qbb_err_sum;
+	wildfire_64	__pad6;
+	wildfire_64	iop_qbb_se_sum;
+	wildfire_64	__pad7;
+	wildfire_64	ioa_err_sum;
+	wildfire_64	iod_err_sum;
+	wildfire_64	__pad8[4];
+	wildfire_64	ioa_diag_force_err;
+	wildfire_64	iod_diag_force_err;
+	wildfire_64	__pad9[4];
+	wildfire_64	iop_diag_send_err_int;
+	wildfire_64	__pad10[15];
+	wildfire_64	ioa_scratch;
+	wildfire_64	iod_scratch;
+} wildfire_iop;
+
+typedef struct {
+	wildfire_2k	gpa_qbb_map[4];
+	wildfire_2k	gpa_mem_pop_map;
+	wildfire_2k	gpa_scratch;
+	wildfire_2k	gpa_diag;
+	wildfire_2k	gpa_config_0;
+	wildfire_2k	__pad1;
+	wildfire_2k	gpa_init_id;
+	wildfire_2k	gpa_config_2;
+	/* not complete */
+} wildfire_gp;
+
+typedef struct {
+	wildfire_64	pca_what_am_i;
+	wildfire_64	pca_err_sum;
+	wildfire_64	pca_diag_force_err;
+	wildfire_64	pca_diag_send_err_int;
+	wildfire_64	pca_hose_credits;
+	wildfire_64	pca_scratch;
+	wildfire_64	pca_micro_addr;
+	wildfire_64	pca_micro_data;
+	wildfire_64	pca_pend_int;
+	wildfire_64	pca_sent_int;
+	wildfire_64	__pad1;
+	wildfire_64	pca_stdio_edge_level;
+	wildfire_64	__pad2[52];
+	struct {
+		wildfire_64	target;
+		wildfire_64	enable;
+	} pca_int[4];
+	wildfire_64	__pad3[56];
+	wildfire_64	pca_alt_sent_int[32];
+} wildfire_pca;
+
+typedef struct {
+	wildfire_64	ne_what_am_i;
+	/* not complete */
+} wildfire_ne;
+
+typedef struct {
+	wildfire_64	fe_what_am_i;
+	/* not complete */
+} wildfire_fe;
+
+typedef struct {
+	wildfire_64	pci_io_addr_ext;
+	wildfire_64	pci_ctrl;
+	wildfire_64	pci_err_sum;
+	wildfire_64	pci_err_addr;
+	wildfire_64	pci_stall_cnt;
+	wildfire_64	pci_iack_special;
+	wildfire_64	__pad1[2];
+	wildfire_64	pci_pend_int;
+	wildfire_64	pci_sent_int;
+	wildfire_64	__pad2[54];
+	struct {
+		wildfire_64	wbase;
+		wildfire_64	wmask;
+		wildfire_64	tbase;
+	} pci_window[4];
+	wildfire_64	pci_flush_tlb;
+	wildfire_64	pci_perf_mon;
+} wildfire_pci;
+
+#define WILDFIRE_ENTITY_SHIFT		18
+
+#define WILDFIRE_GP_ENTITY		(0x10UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_IOP_ENTITY		(0x08UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSA_ENTITY		(0x04UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_SLOW	(0x05UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_FAST	(0x01UL << WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_PCA_ENTITY(pca)	((0xc|(pca))<<WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_BASE		(IDENT_ADDR | (1UL << 40))
+
+#define WILDFIRE_QBB_MASK	0x0fUL	/* for now, only 4 bits/16 QBBs */
+
+#define WILDFIRE_QBB(q)		((~((long)(q)) & WILDFIRE_QBB_MASK) << 36)
+#define WILDFIRE_HOSE(h)	((long)(h) << 33)
+
+#define WILDFIRE_QBB_IO(q)	(WILDFIRE_BASE | WILDFIRE_QBB(q))
+#define WILDFIRE_QBB_HOSE(q,h)	(WILDFIRE_QBB_IO(q) | WILDFIRE_HOSE(h))
+
+#define WILDFIRE_MEM(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x000000000UL)
+#define WILDFIRE_CONF(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x1FE000000UL)
+#define WILDFIRE_IO(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x1FF000000UL)
+
+#define WILDFIRE_qsd(q) \
+ ((wildfire_qsd *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSD_ENTITY_SLOW|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_fast_qsd() \
+ ((wildfire_fast_qsd *)(WILDFIRE_QBB_IO(0)|WILDFIRE_QSD_ENTITY_FAST|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_qsa(q) \
+ ((wildfire_qsa *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSA_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_iop(q) \
+ ((wildfire_iop *)(WILDFIRE_QBB_IO(q)|WILDFIRE_IOP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_gp(q) \
+ ((wildfire_gp *)(WILDFIRE_QBB_IO(q)|WILDFIRE_GP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_pca(q,pca) \
+ ((wildfire_pca *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_ne(q,pca) \
+ ((wildfire_ne *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(1UL<<16)))
+
+#define WILDFIRE_fe(q,pca) \
+ ((wildfire_fe *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(3UL<<15)))
+
+#define WILDFIRE_pci(q,h) \
+ ((wildfire_pci *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(((h)&6)>>1)|((((h)&1)|2)<<16)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_IO_BIAS        WILDFIRE_IO(0,0)
+#define WILDFIRE_MEM_BIAS       WILDFIRE_MEM(0,0) /* ??? */
+
+/* The IO address space is larger than 0xffff */
+#define WILDFIRE_IO_SPACE	(8UL*1024*1024)
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *wildfire_ioremap(unsigned long addr, 
+					       unsigned long size)
+{
+	return (void __iomem *)(addr + WILDFIRE_MEM_BIAS);
+}
+
+__EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
+{
+	return addr >= WILDFIRE_BASE;
+}
+
+__EXTERN_INLINE int wildfire_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+	return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX			wildfire
+#define wildfire_trivial_rw_bw		1
+#define wildfire_trivial_rw_lq		1
+#define wildfire_trivial_io_bw		1
+#define wildfire_trivial_io_lq		1
+#define wildfire_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_WILDFIRE__H__ */
diff --git a/arch/alpha/include/asm/delay.h b/arch/alpha/include/asm/delay.h
new file mode 100644
index 000000000..868aa61ab
--- /dev/null
+++ b/arch/alpha/include/asm/delay.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_DELAY_H
+#define __ALPHA_DELAY_H
+
+extern void __delay(int loops);
+extern void udelay(unsigned long usecs);
+
+extern void ndelay(unsigned long nsecs);
+#define ndelay ndelay
+
+#endif /* defined(__ALPHA_DELAY_H) */
diff --git a/arch/alpha/include/asm/device.h b/arch/alpha/include/asm/device.h
new file mode 100644
index 000000000..9ca75a7db
--- /dev/null
+++ b/arch/alpha/include/asm/device.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Arch specific extensions to struct device
+ */
+#include <asm-generic/device.h>
+
diff --git a/arch/alpha/include/asm/div64.h b/arch/alpha/include/asm/div64.h
new file mode 100644
index 000000000..6cd978cef
--- /dev/null
+++ b/arch/alpha/include/asm/div64.h
@@ -0,0 +1 @@
+#include <asm-generic/div64.h>
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
new file mode 100644
index 000000000..0ee6a5c99
--- /dev/null
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_DMA_MAPPING_H
+#define _ALPHA_DMA_MAPPING_H
+
+extern const struct dma_map_ops alpha_pci_ops;
+
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+#ifdef CONFIG_ALPHA_JENSEN
+	return NULL;
+#else
+	return &alpha_pci_ops;
+#endif
+}
+
+#endif	/* _ALPHA_DMA_MAPPING_H */
diff --git a/arch/alpha/include/asm/dma.h b/arch/alpha/include/asm/dma.h
new file mode 100644
index 000000000..a04d76b96
--- /dev/null
+++ b/arch/alpha/include/asm/dma.h
@@ -0,0 +1,368 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/dma.h
+ *
+ * This is essentially the same as the i386 DMA stuff, as the AlphaPCs
+ * use ISA-compatible dma.  The only extension is support for high-page
+ * registers that allow to set the top 8 bits of a 32-bit DMA address.
+ * This register should be written last when setting up a DMA address
+ * as this will also enable DMA across 64 KB boundaries.
+ */
+
+/* $Id: dma.h,v 1.7 1992/12/14 00:29:34 root Exp root $
+ * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+ * Written by Hennus Bergman, 1992.
+ * High DMA channel support & info by Hannu Savolainen
+ * and John Boyd, Nov. 1992.
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <linux/spinlock.h>
+#include <asm/io.h>
+
+#define dma_outb	outb
+#define dma_inb		inb
+
+/*
+ * NOTES about DMA transfers:
+ *
+ *  controller 1: channels 0-3, byte operations, ports 00-1F
+ *  controller 2: channels 4-7, word operations, ports C0-DF
+ *
+ *  - ALL registers are 8 bits only, regardless of transfer size
+ *  - channel 4 is not used - cascades 1 into 2.
+ *  - channels 0-3 are byte - addresses/counts are for physical bytes
+ *  - channels 5-7 are word - addresses/counts are for physical words
+ *  - transfers must not cross physical 64K (0-3) or 128K (5-7) boundaries
+ *  - transfer count loaded to registers is 1 less than actual count
+ *  - controller 2 offsets are all even (2x offsets for controller 1)
+ *  - page registers for 5-7 don't use data bit 0, represent 128K pages
+ *  - page registers for 0-3 use bit 0, represent 64K pages
+ *
+ * DMA transfers are limited to the lower 16MB of _physical_ memory.  
+ * Note that addresses loaded into registers must be _physical_ addresses,
+ * not logical addresses (which may differ if paging is active).
+ *
+ *  Address mapping for channels 0-3:
+ *
+ *   A23 ... A16 A15 ... A8  A7 ... A0    (Physical addresses)
+ *    |  ...  |   |  ... |   |  ... |
+ *    |  ...  |   |  ... |   |  ... |
+ *    |  ...  |   |  ... |   |  ... |
+ *   P7  ...  P0  A7 ... A0  A7 ... A0   
+ * |    Page    | Addr MSB | Addr LSB |   (DMA registers)
+ *
+ *  Address mapping for channels 5-7:
+ *
+ *   A23 ... A17 A16 A15 ... A9 A8 A7 ... A1 A0    (Physical addresses)
+ *    |  ...  |   \   \   ... \  \  \  ... \  \
+ *    |  ...  |    \   \   ... \  \  \  ... \  (not used)
+ *    |  ...  |     \   \   ... \  \  \  ... \
+ *   P7  ...  P1 (0) A7 A6  ... A0 A7 A6 ... A0   
+ * |      Page      |  Addr MSB   |  Addr LSB  |   (DMA registers)
+ *
+ * Again, channels 5-7 transfer _physical_ words (16 bits), so addresses
+ * and counts _must_ be word-aligned (the lowest address bit is _ignored_ at
+ * the hardware level, so odd-byte transfers aren't possible).
+ *
+ * Transfer count (_not # bytes_) is limited to 64K, represented as actual
+ * count - 1 : 64K => 0xFFFF, 1 => 0x0000.  Thus, count is always 1 or more,
+ * and up to 128K bytes may be transferred on channels 5-7 in one operation. 
+ *
+ */
+
+#define MAX_DMA_CHANNELS	8
+
+/*
+  ISA DMA limitations on Alpha platforms,
+
+  These may be due to SIO (PCI<->ISA bridge) chipset limitation, or
+  just a wiring limit.
+*/
+
+/* The maximum address for ISA DMA transfer on Alpha XL, due to an
+   hardware SIO limitation, is 64MB.
+*/
+#define ALPHA_XL_MAX_ISA_DMA_ADDRESS		0x04000000UL
+
+/* The maximum address for ISA DMA transfer on RUFFIAN,
+   due to an hardware SIO limitation, is 16MB.
+*/
+#define ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS	0x01000000UL
+
+/* The maximum address for ISA DMA transfer on SABLE, and some ALCORs,
+   due to an hardware SIO chip limitation, is 2GB.
+*/
+#define ALPHA_SABLE_MAX_ISA_DMA_ADDRESS		0x80000000UL
+#define ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS		0x80000000UL
+
+/*
+  Maximum address for all the others is the complete 32-bit bus
+  address space.
+*/
+#define ALPHA_MAX_ISA_DMA_ADDRESS		0x100000000UL
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ISA_DMA_ADDRESS		(alpha_mv.max_isa_dma_address)
+#else
+# if defined(CONFIG_ALPHA_XL)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_XL_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_RUFFIAN)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_SABLE)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_SABLE_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_ALCOR)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS
+# else
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_MAX_ISA_DMA_ADDRESS
+# endif
+#endif
+
+/* If we have the iommu, we don't have any address limitations on DMA.
+   Otherwise (Nautilus, RX164), we have to have 0-16 Mb DMA zone
+   like i386. */
+#define MAX_DMA_ADDRESS		(alpha_mv.mv_pci_tbi ?	\
+				 ~0UL : IDENT_ADDR + 0x01000000)
+
+/* 8237 DMA controllers */
+#define IO_DMA1_BASE	0x00	/* 8 bit slave DMA, channels 0..3 */
+#define IO_DMA2_BASE	0xC0	/* 16 bit master DMA, ch 4(=slave input)..7 */
+
+/* DMA controller registers */
+#define DMA1_CMD_REG		0x08	/* command register (w) */
+#define DMA1_STAT_REG		0x08	/* status register (r) */
+#define DMA1_REQ_REG            0x09    /* request register (w) */
+#define DMA1_MASK_REG		0x0A	/* single-channel mask (w) */
+#define DMA1_MODE_REG		0x0B	/* mode register (w) */
+#define DMA1_CLEAR_FF_REG	0x0C	/* clear pointer flip-flop (w) */
+#define DMA1_TEMP_REG           0x0D    /* Temporary Register (r) */
+#define DMA1_RESET_REG		0x0D	/* Master Clear (w) */
+#define DMA1_CLR_MASK_REG       0x0E    /* Clear Mask */
+#define DMA1_MASK_ALL_REG       0x0F    /* all-channels mask (w) */
+#define DMA1_EXT_MODE_REG	(0x400 | DMA1_MODE_REG)
+
+#define DMA2_CMD_REG		0xD0	/* command register (w) */
+#define DMA2_STAT_REG		0xD0	/* status register (r) */
+#define DMA2_REQ_REG            0xD2    /* request register (w) */
+#define DMA2_MASK_REG		0xD4	/* single-channel mask (w) */
+#define DMA2_MODE_REG		0xD6	/* mode register (w) */
+#define DMA2_CLEAR_FF_REG	0xD8	/* clear pointer flip-flop (w) */
+#define DMA2_TEMP_REG           0xDA    /* Temporary Register (r) */
+#define DMA2_RESET_REG		0xDA	/* Master Clear (w) */
+#define DMA2_CLR_MASK_REG       0xDC    /* Clear Mask */
+#define DMA2_MASK_ALL_REG       0xDE    /* all-channels mask (w) */
+#define DMA2_EXT_MODE_REG	(0x400 | DMA2_MODE_REG)
+
+#define DMA_ADDR_0              0x00    /* DMA address registers */
+#define DMA_ADDR_1              0x02
+#define DMA_ADDR_2              0x04
+#define DMA_ADDR_3              0x06
+#define DMA_ADDR_4              0xC0
+#define DMA_ADDR_5              0xC4
+#define DMA_ADDR_6              0xC8
+#define DMA_ADDR_7              0xCC
+
+#define DMA_CNT_0               0x01    /* DMA count registers */
+#define DMA_CNT_1               0x03
+#define DMA_CNT_2               0x05
+#define DMA_CNT_3               0x07
+#define DMA_CNT_4               0xC2
+#define DMA_CNT_5               0xC6
+#define DMA_CNT_6               0xCA
+#define DMA_CNT_7               0xCE
+
+#define DMA_PAGE_0              0x87    /* DMA page registers */
+#define DMA_PAGE_1              0x83
+#define DMA_PAGE_2              0x81
+#define DMA_PAGE_3              0x82
+#define DMA_PAGE_5              0x8B
+#define DMA_PAGE_6              0x89
+#define DMA_PAGE_7              0x8A
+
+#define DMA_HIPAGE_0		(0x400 | DMA_PAGE_0)
+#define DMA_HIPAGE_1		(0x400 | DMA_PAGE_1)
+#define DMA_HIPAGE_2		(0x400 | DMA_PAGE_2)
+#define DMA_HIPAGE_3		(0x400 | DMA_PAGE_3)
+#define DMA_HIPAGE_4		(0x400 | DMA_PAGE_4)
+#define DMA_HIPAGE_5		(0x400 | DMA_PAGE_5)
+#define DMA_HIPAGE_6		(0x400 | DMA_PAGE_6)
+#define DMA_HIPAGE_7		(0x400 | DMA_PAGE_7)
+
+#define DMA_MODE_READ	0x44	/* I/O to memory, no autoinit, increment, single mode */
+#define DMA_MODE_WRITE	0x48	/* memory to I/O, no autoinit, increment, single mode */
+#define DMA_MODE_CASCADE 0xC0   /* pass thru DREQ->HRQ, DACK<-HLDA only */
+
+#define DMA_AUTOINIT	0x10
+
+extern spinlock_t  dma_spin_lock;
+
+static __inline__ unsigned long claim_dma_lock(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&dma_spin_lock, flags);
+	return flags;
+}
+
+static __inline__ void release_dma_lock(unsigned long flags)
+{
+	spin_unlock_irqrestore(&dma_spin_lock, flags);
+}
+
+/* enable/disable a specific DMA channel */
+static __inline__ void enable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr,  DMA1_MASK_REG);
+	else
+		dma_outb(dmanr & 3,  DMA2_MASK_REG);
+}
+
+static __inline__ void disable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr | 4,  DMA1_MASK_REG);
+	else
+		dma_outb((dmanr & 3) | 4,  DMA2_MASK_REG);
+}
+
+/* Clear the 'DMA Pointer Flip Flop'.
+ * Write 0 for LSB/MSB, 1 for MSB/LSB access.
+ * Use this once to initialize the FF to a known state.
+ * After that, keep track of it. :-)
+ * --- In order to do that, the DMA routines below should ---
+ * --- only be used while interrupts are disabled! ---
+ */
+static __inline__ void clear_dma_ff(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(0,  DMA1_CLEAR_FF_REG);
+	else
+		dma_outb(0,  DMA2_CLEAR_FF_REG);
+}
+
+/* set mode (above) for a specific DMA channel */
+static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
+{
+	if (dmanr<=3)
+		dma_outb(mode | dmanr,  DMA1_MODE_REG);
+	else
+		dma_outb(mode | (dmanr&3),  DMA2_MODE_REG);
+}
+
+/* set extended mode for a specific DMA channel */
+static __inline__ void set_dma_ext_mode(unsigned int dmanr, char ext_mode)
+{
+	if (dmanr<=3)
+		dma_outb(ext_mode | dmanr,  DMA1_EXT_MODE_REG);
+	else
+		dma_outb(ext_mode | (dmanr&3),  DMA2_EXT_MODE_REG);
+}
+
+/* Set only the page register bits of the transfer address.
+ * This is used for successive transfers when we know the contents of
+ * the lower 16 bits of the DMA current address register.
+ */
+static __inline__ void set_dma_page(unsigned int dmanr, unsigned int pagenr)
+{
+	switch(dmanr) {
+		case 0:
+			dma_outb(pagenr, DMA_PAGE_0);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_0);
+			break;
+		case 1:
+			dma_outb(pagenr, DMA_PAGE_1);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_1);
+			break;
+		case 2:
+			dma_outb(pagenr, DMA_PAGE_2);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_2);
+			break;
+		case 3:
+			dma_outb(pagenr, DMA_PAGE_3);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_3);
+			break;
+		case 5:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_5);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_5);
+			break;
+		case 6:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_6);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_6);
+			break;
+		case 7:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_7);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_7);
+			break;
+	}
+}
+
+
+/* Set transfer address & page bits for specific DMA channel.
+ * Assumes dma flipflop is clear.
+ */
+static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int a)
+{
+	if (dmanr <= 3)  {
+	    dma_outb( a & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+            dma_outb( (a>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+	}  else  {
+	    dma_outb( (a>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	    dma_outb( (a>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	}
+	set_dma_page(dmanr, a>>16);	/* set hipage last to enable 32-bit mode */
+}
+
+
+/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
+ * a specific DMA channel.
+ * You must ensure the parameters are valid.
+ * NOTE: from a manual: "the number of transfers is one more
+ * than the initial word count"! This is taken into account.
+ * Assumes dma flip-flop is clear.
+ * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
+ */
+static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+        count--;
+	if (dmanr <= 3)  {
+	    dma_outb( count & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+	    dma_outb( (count>>8) & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+        } else {
+	    dma_outb( (count>>1) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+	    dma_outb( (count>>9) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+        }
+}
+
+
+/* Get DMA residue count. After a DMA transfer, this
+ * should return zero. Reading this while a DMA transfer is
+ * still in progress will return unpredictable results.
+ * If called before the channel has been used, it may return 1.
+ * Otherwise, it returns the number of _bytes_ left to transfer.
+ *
+ * Assumes DMA flip-flop is clear.
+ */
+static __inline__ int get_dma_residue(unsigned int dmanr)
+{
+	unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE
+					 : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE;
+
+	/* using short to get 16-bit wrap around */
+	unsigned short count;
+
+	count = 1 + dma_inb(io_port);
+	count += dma_inb(io_port) << 8;
+	
+	return (dmanr<=3)? count : (count<<1);
+}
+
+
+/* These are in kernel/dma.c: */
+extern int request_dma(unsigned int dmanr, const char * device_id);	/* reserve a DMA channel */
+extern void free_dma(unsigned int dmanr);	/* release it again */
+#define KERNEL_HAVE_CHECK_DMA
+extern int check_dma(unsigned int dmanr);
+
+#endif /* _ASM_DMA_H */
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
new file mode 100644
index 000000000..8049997fa
--- /dev/null
+++ b/arch/alpha/include/asm/elf.h
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_ELF_H
+#define __ASM_ALPHA_ELF_H
+
+#include <asm/auxvec.h>
+#include <asm/special_insns.h>
+
+/* Special values for the st_other field in the symbol table.  */
+
+#define STO_ALPHA_NOPV		0x80
+#define STO_ALPHA_STD_GPLOAD	0x88
+
+/*
+ * Alpha ELF relocation types
+ */
+#define R_ALPHA_NONE            0       /* No reloc */
+#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
+#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
+#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
+#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
+#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
+#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
+#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
+#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
+#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
+#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
+#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
+#define R_ALPHA_GPRELHIGH       17      /* GP relative 32 bit, high 16 bits */
+#define R_ALPHA_GPRELLOW        18      /* GP relative 32 bit, low 16 bits */
+#define R_ALPHA_GPREL16         19      /* GP relative 16 bit */
+#define R_ALPHA_COPY            24      /* Copy symbol at runtime */
+#define R_ALPHA_GLOB_DAT        25      /* Create GOT entry */
+#define R_ALPHA_JMP_SLOT        26      /* Create PLT entry */
+#define R_ALPHA_RELATIVE        27      /* Adjust by program base */
+#define R_ALPHA_BRSGP		28
+#define R_ALPHA_TLSGD           29
+#define R_ALPHA_TLS_LDM         30
+#define R_ALPHA_DTPMOD64        31
+#define R_ALPHA_GOTDTPREL       32
+#define R_ALPHA_DTPREL64        33
+#define R_ALPHA_DTPRELHI        34
+#define R_ALPHA_DTPRELLO        35
+#define R_ALPHA_DTPREL16        36
+#define R_ALPHA_GOTTPREL        37
+#define R_ALPHA_TPREL64         38
+#define R_ALPHA_TPRELHI         39
+#define R_ALPHA_TPRELLO         40
+#define R_ALPHA_TPREL16         41
+
+#define SHF_ALPHA_GPREL		0x10000000
+
+/* Legal values for e_flags field of Elf64_Ehdr.  */
+
+#define EF_ALPHA_32BIT		1	/* All addresses are below 2GB */
+
+/*
+ * ELF register definitions..
+ */
+
+/*
+ * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.
+ * I have no idea why that is so.  For now, we just leave it at 33
+ * (32 general regs + processor status word). 
+ */
+#define ELF_NGREG	33
+#define ELF_NFPREG	32
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS64
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_ALPHA
+
+#define ELF_EXEC_PAGESIZE	8192
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
+
+/* $0 is set by ld.so to a pointer to a function which might be 
+   registered using atexit.  This provides a mean for the dynamic
+   linker to call DT_FINI functions for shared libraries that have
+   been loaded before the code runs.
+
+   So that we can use the same startup file with static executables,
+   we start programs with a value of 0 to indicate that there is no
+   such function.  */
+
+#define ELF_PLAT_INIT(_r, load_addr)	_r->r0 = 0
+
+/* The registers are laid out in pt_regs for PAL and syscall
+   convenience.  Re-order them for the linear elf_gregset_t.  */
+
+struct pt_regs;
+struct thread_info;
+struct task_struct;
+extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt,
+			    struct thread_info *ti);
+#define ELF_CORE_COPY_REGS(DEST, REGS) \
+	dump_elf_thread(DEST, REGS, current_thread_info());
+
+/* Similar, but for a thread other than current.  */
+
+extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \
+	dump_elf_task(*(DEST), TASK)
+
+/* Similar, but for the FP registers.  */
+
+extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_FPREGS(TASK, DEST) \
+	dump_elf_task_fp(*(DEST), TASK)
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports.  This is trivial on Alpha, 
+   but not so on other machines. */
+
+#define ELF_HWCAP  (~amask(-1))
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.  */
+
+#define ELF_PLATFORM				\
+({						\
+	enum implver_enum i_ = implver();	\
+	( i_ == IMPLVER_EV4 ? "ev4"		\
+	: i_ == IMPLVER_EV5			\
+	  ? (amask(AMASK_BWX) ? "ev5" : "ev56")	\
+	: amask (AMASK_CIX) ? "ev6" : "ev67");	\
+})
+
+#define SET_PERSONALITY(EX)					\
+	set_personality(((EX).e_flags & EF_ALPHA_32BIT)		\
+	   ? PER_LINUX_32BIT : PER_LINUX)
+
+extern int alpha_l1i_cacheshape;
+extern int alpha_l1d_cacheshape;
+extern int alpha_l2_cacheshape;
+extern int alpha_l3_cacheshape;
+
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+#define ARCH_DLINFO						\
+  do {								\
+    NEW_AUX_ENT(AT_L1I_CACHESHAPE, alpha_l1i_cacheshape);	\
+    NEW_AUX_ENT(AT_L1D_CACHESHAPE, alpha_l1d_cacheshape);	\
+    NEW_AUX_ENT(AT_L2_CACHESHAPE, alpha_l2_cacheshape);		\
+    NEW_AUX_ENT(AT_L3_CACHESHAPE, alpha_l3_cacheshape);		\
+  } while (0)
+
+#endif /* __ASM_ALPHA_ELF_H */
diff --git a/arch/alpha/include/asm/emergency-restart.h b/arch/alpha/include/asm/emergency-restart.h
new file mode 100644
index 000000000..108d8c48e
--- /dev/null
+++ b/arch/alpha/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/alpha/include/asm/err_common.h b/arch/alpha/include/asm/err_common.h
new file mode 100644
index 000000000..610e01fe7
--- /dev/null
+++ b/arch/alpha/include/asm/err_common.h
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/include/asm-alpha/err_common.h
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Contains declarations and macros to support Alpha error handling
+ * 	implementations.
+ */
+
+#ifndef __ALPHA_ERR_COMMON_H
+#define __ALPHA_ERR_COMMON_H 1
+
+/*
+ * SCB Vector definitions
+ */
+#define SCB_Q_SYSERR	0x620
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+#define SCB_Q_SYSEVENT	0x680
+
+/*
+ * Disposition definitions for logout frame parser
+ */
+#define MCHK_DISPOSITION_UNKNOWN_ERROR		0x00
+#define MCHK_DISPOSITION_REPORT			0x01
+#define MCHK_DISPOSITION_DISMISS		0x02
+
+/*
+ * Error Log definitions
+ */
+/*
+ * Types
+ */
+
+#define EL_CLASS__TERMINATION		(0)
+#  define EL_TYPE__TERMINATION__TERMINATION		(0)
+#define EL_CLASS__HEADER		(5)
+#  define EL_TYPE__HEADER__SYSTEM_ERROR_FRAME		(1)
+#  define EL_TYPE__HEADER__SYSTEM_EVENT_FRAME		(2)
+#  define EL_TYPE__HEADER__HALT_FRAME			(3)
+#  define EL_TYPE__HEADER__LOGOUT_FRAME			(19)
+#define EL_CLASS__GENERAL_NOTIFICATION	(9)
+#define EL_CLASS__PCI_ERROR_FRAME	(11)
+#define EL_CLASS__REGATTA_FAMILY	(12)
+#  define EL_TYPE__REGATTA__PROCESSOR_ERROR_FRAME	(1)
+#  define EL_TYPE__REGATTA__SYSTEM_ERROR_FRAME		(2)
+#  define EL_TYPE__REGATTA__ENVIRONMENTAL_FRAME		(3)
+#  define EL_TYPE__REGATTA__TITAN_PCHIP0_EXTENDED	(8)
+#  define EL_TYPE__REGATTA__TITAN_PCHIP1_EXTENDED	(9)
+#  define EL_TYPE__REGATTA__TITAN_MEMORY_EXTENDED	(10)
+#  define EL_TYPE__REGATTA__PROCESSOR_DBL_ERROR_HALT	(11)
+#  define EL_TYPE__REGATTA__SYSTEM_DBL_ERROR_HALT	(12)
+#define EL_CLASS__PAL                   (14)
+#  define EL_TYPE__PAL__LOGOUT_FRAME                    (1)
+#  define EL_TYPE__PAL__EV7_PROCESSOR			(4)
+#  define EL_TYPE__PAL__EV7_ZBOX			(5)
+#  define EL_TYPE__PAL__EV7_RBOX			(6)
+#  define EL_TYPE__PAL__EV7_IO				(7)
+#  define EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE	(10)
+#  define EL_TYPE__PAL__ENV__AIRMOVER_FAN		(11)
+#  define EL_TYPE__PAL__ENV__VOLTAGE			(12)
+#  define EL_TYPE__PAL__ENV__INTRUSION			(13)
+#  define EL_TYPE__PAL__ENV__POWER_SUPPLY		(14)
+#  define EL_TYPE__PAL__ENV__LAN			(15)
+#  define EL_TYPE__PAL__ENV__HOT_PLUG			(16)
+
+union el_timestamp {
+	struct {
+		u8 second;
+		u8 minute;
+		u8 hour;
+		u8 day;
+		u8 month;
+		u8 year;
+	} b;
+	u64 as_int;
+};
+
+struct el_subpacket {
+	u16 length;		/* length of header (in bytes)	*/
+	u16 class;		/* header class and type...   	*/
+	u16 type;		/* ...determine content     	*/
+	u16 revision;		/* header revision 		*/
+	union {
+		struct {	/* Class 5, Type 1 - System Error	*/
+			u32 frame_length;
+			u32 frame_packet_count;			
+		} sys_err;			
+		struct {	/* Class 5, Type 2 - System Event 	*/
+			union el_timestamp timestamp;
+			u32 frame_length;
+			u32 frame_packet_count;			
+		} sys_event;
+		struct {	/* Class 5, Type 3 - Double Error Halt	*/
+			u16 halt_code;
+			u16 reserved;
+			union el_timestamp timestamp;
+			u32 frame_length;
+			u32 frame_packet_count;
+		} err_halt;
+		struct {	/* Clasee 5, Type 19 - Logout Frame Header */
+			u32 frame_length;
+			u32 frame_flags;
+			u32 cpu_offset;	
+			u32 system_offset;
+		} logout_header;
+		struct {	/* Class 12 - Regatta			*/
+			u64 cpuid;
+			u64 data_start[1];
+		} regatta_frame;
+		struct {	/* Raw 				        */
+			u64 data_start[1];
+		} raw;
+	} by_type;
+};
+
+#endif /* __ALPHA_ERR_COMMON_H */
diff --git a/arch/alpha/include/asm/err_ev6.h b/arch/alpha/include/asm/err_ev6.h
new file mode 100644
index 000000000..ea637791e
--- /dev/null
+++ b/arch/alpha/include/asm/err_ev6.h
@@ -0,0 +1,6 @@
+#ifndef __ALPHA_ERR_EV6_H
+#define __ALPHA_ERR_EV6_H 1
+
+/* Dummy include for now. */
+
+#endif /* __ALPHA_ERR_EV6_H */
diff --git a/arch/alpha/include/asm/err_ev7.h b/arch/alpha/include/asm/err_ev7.h
new file mode 100644
index 000000000..ab17e6333
--- /dev/null
+++ b/arch/alpha/include/asm/err_ev7.h
@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_ERR_EV7_H
+#define __ALPHA_ERR_EV7_H 1
+
+/*
+ * Data for el packet class PAL (14), type LOGOUT_FRAME (1)
+ */
+struct ev7_pal_logout_subpacket {
+	u32 mchk_code;
+	u32 subpacket_count;
+	u64 whami;
+	u64 rbox_whami;
+	u64 rbox_int;
+	u64 exc_addr;
+	union el_timestamp timestamp;
+	u64 halt_code;
+	u64 reserved;
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_PROCESSOR (4)
+ */
+struct ev7_pal_processor_subpacket {
+	u64 i_stat;
+	u64 dc_stat;
+	u64 c_addr;
+	u64 c_syndrome_1;
+	u64 c_syndrome_0;
+	u64 c_stat;
+	u64 c_sts;
+	u64 mm_stat;
+	u64 exc_addr;
+	u64 ier_cm;
+	u64 isum;
+	u64 pal_base;
+	u64 i_ctl;
+	u64 process_context;
+	u64 cbox_ctl;
+	u64 cbox_stp_ctl;
+	u64 cbox_acc_ctl;
+	u64 cbox_lcl_set;
+	u64 cbox_gbl_set;
+	u64 bbox_ctl;
+	u64 bbox_err_sts;
+	u64 bbox_err_idx;
+	u64 cbox_ddp_err_sts;
+	u64 bbox_dat_rmp;
+	u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_ZBOX (5)
+ */
+struct ev7_pal_zbox_subpacket {
+	u32 zbox0_dram_err_status_1;
+	u32 zbox0_dram_err_status_2;
+	u32 zbox0_dram_err_status_3;
+	u32 zbox0_dram_err_ctl;
+	u32 zbox0_dram_err_adr;
+	u32 zbox0_dift_timeout;
+	u32 zbox0_dram_mapper_ctl;
+	u32 zbox0_frc_err_adr;
+	u32 zbox0_dift_err_status;
+	u32 reserved1;
+	u32 zbox1_dram_err_status_1;
+	u32 zbox1_dram_err_status_2;
+	u32 zbox1_dram_err_status_3;
+	u32 zbox1_dram_err_ctl;
+	u32 zbox1_dram_err_adr;
+	u32 zbox1_dift_timeout;
+	u32 zbox1_dram_mapper_ctl;
+	u32 zbox1_frc_err_adr;
+	u32 zbox1_dift_err_status;
+	u32 reserved2;
+	u64 cbox_ctl;
+	u64 cbox_stp_ctl;
+	u64 zbox0_error_pa;
+	u64 zbox1_error_pa;
+	u64 zbox0_ored_syndrome;
+	u64 zbox1_ored_syndrome;
+	u64 reserved3[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_RBOX (6)
+ */
+struct ev7_pal_rbox_subpacket {
+	u64 rbox_cfg;
+	u64 rbox_n_cfg;
+	u64 rbox_s_cfg;
+	u64 rbox_e_cfg;
+	u64 rbox_w_cfg;
+	u64 rbox_n_err;
+	u64 rbox_s_err;
+	u64 rbox_e_err;
+	u64 rbox_w_err;
+	u64 rbox_io_cfg;
+	u64 rbox_io_err;
+	u64 rbox_l_err;
+	u64 rbox_whoami;
+	u64 rbox_imask;
+	u64 rbox_intq;
+	u64 rbox_int;
+	u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_IO (7)
+ */
+struct ev7_pal_io_one_port {
+	u64 pox_err_sum;
+	u64 pox_tlb_err;
+	u64 pox_spl_cmplt;
+	u64 pox_trans_sum;
+	u64 pox_first_err;
+	u64 pox_mult_err;
+	u64 pox_dm_source;
+	u64 pox_dm_dest;
+	u64 pox_dm_size;
+	u64 pox_dm_ctrl;
+	u64 reserved;
+};
+
+struct ev7_pal_io_subpacket {
+	u64 io_asic_rev;
+	u64 io_sys_rev;
+	u64 io7_uph;
+	u64 hpi_ctl;
+	u64 crd_ctl;
+	u64 hei_ctl;
+	u64 po7_error_sum;
+	u64 po7_uncrr_sym;
+	u64 po7_crrct_sym;
+	u64 po7_ugbge_sym;
+	u64 po7_err_pkt0;
+	u64 po7_err_pkt1;
+	u64 reserved[2];
+	struct ev7_pal_io_one_port ports[4];
+};
+
+/*
+ * Environmental subpacket. Data used for el packets:
+ * 	   class PAL (14), type AMBIENT_TEMPERATURE (10)
+ * 	   class PAL (14), type AIRMOVER_FAN (11)
+ * 	   class PAL (14), type VOLTAGE (12)
+ * 	   class PAL (14), type INTRUSION (13)
+ *	   class PAL (14), type POWER_SUPPLY (14)
+ *	   class PAL (14), type LAN (15)
+ *	   class PAL (14), type HOT_PLUG (16)
+ */
+struct ev7_pal_environmental_subpacket {
+	u16 cabinet;
+	u16 drawer;
+	u16 reserved1[2];
+	u8 module_type;
+	u8 unit_id;		/* unit reporting condition */
+	u8 reserved2;
+	u8 condition;		/* condition reported       */
+};
+
+/*
+ * Convert environmental type to index
+ */
+static inline int ev7_lf_env_index(int type)
+{
+	BUG_ON((type < EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE) 
+	       || (type > EL_TYPE__PAL__ENV__HOT_PLUG));
+
+	return type - EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE;
+}
+
+/*
+ * Data for generic el packet class PAL.
+ */
+struct ev7_pal_subpacket {
+	union {
+		struct ev7_pal_logout_subpacket logout;	     /* Type     1 */
+		struct ev7_pal_processor_subpacket ev7;	     /* Type     4 */
+		struct ev7_pal_zbox_subpacket zbox;	     /* Type     5 */
+		struct ev7_pal_rbox_subpacket rbox;	     /* Type     6 */
+		struct ev7_pal_io_subpacket io;		     /* Type     7 */
+		struct ev7_pal_environmental_subpacket env;  /* Type 10-16 */
+		u64 as_quad[1];				     /* Raw u64    */
+	} by_type;
+};
+
+/*
+ * Struct to contain collected logout from subpackets.
+ */
+struct ev7_lf_subpackets {
+	struct ev7_pal_logout_subpacket *logout;		/* Type  1 */
+	struct ev7_pal_processor_subpacket *ev7;		/* Type  4 */
+	struct ev7_pal_zbox_subpacket *zbox;			/* Type  5 */
+	struct ev7_pal_rbox_subpacket *rbox;			/* Type  6 */
+	struct ev7_pal_io_subpacket *io;			/* Type  7 */
+	struct ev7_pal_environmental_subpacket *env[7];	     /* Type 10-16 */
+
+	unsigned int io_pid;
+};
+
+#endif /* __ALPHA_ERR_EV7_H */
+
+
diff --git a/arch/alpha/include/asm/extable.h b/arch/alpha/include/asm/extable.h
new file mode 100644
index 000000000..e42592390
--- /dev/null
+++ b/arch/alpha/include/asm/extable.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_EXTABLE_H
+#define _ASM_EXTABLE_H
+
+/*
+ * About the exception table:
+ *
+ * - insn is a 32-bit pc-relative offset from the faulting insn.
+ * - nextinsn is a 16-bit offset off of the faulting instruction
+ *   (not off of the *next* instruction as branches are).
+ * - errreg is the register in which to place -EFAULT.
+ * - valreg is the final target register for the load sequence
+ *   and will be zeroed.
+ *
+ * Either errreg or valreg may be $31, in which case nothing happens.
+ *
+ * The exception fixup information "just so happens" to be arranged
+ * as in a MEM format instruction.  This lets us emit our three
+ * values like so:
+ *
+ *      lda valreg, nextinsn(errreg)
+ *
+ */
+
+struct exception_table_entry
+{
+	signed int insn;
+	union exception_fixup {
+		unsigned unit;
+		struct {
+			signed int nextinsn : 16;
+			unsigned int errreg : 5;
+			unsigned int valreg : 5;
+		} bits;
+	} fixup;
+};
+
+/* Returns the new pc */
+#define fixup_exception(map_reg, _fixup, pc)			\
+({								\
+	if ((_fixup)->fixup.bits.valreg != 31)			\
+		map_reg((_fixup)->fixup.bits.valreg) = 0;	\
+	if ((_fixup)->fixup.bits.errreg != 31)			\
+		map_reg((_fixup)->fixup.bits.errreg) = -EFAULT;	\
+	(pc) + (_fixup)->fixup.bits.nextinsn;			\
+})
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#define swap_ex_entry_fixup(a, b, tmp, delta)			\
+	do {							\
+		(a)->fixup.unit = (b)->fixup.unit;		\
+		(b)->fixup.unit = (tmp).fixup.unit;		\
+	} while (0)
+
+#endif
diff --git a/arch/alpha/include/asm/floppy.h b/arch/alpha/include/asm/floppy.h
new file mode 100644
index 000000000..64b42d959
--- /dev/null
+++ b/arch/alpha/include/asm/floppy.h
@@ -0,0 +1,114 @@
+/*
+ * Architecture specific parts of the Floppy driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995
+ */
+#ifndef __ASM_ALPHA_FLOPPY_H
+#define __ASM_ALPHA_FLOPPY_H
+
+
+#define fd_inb(base, reg)		inb_p((base) + (reg))
+#define fd_outb(value, base, reg)	outb_p(value, (base) + (reg))
+
+#define fd_enable_dma()         enable_dma(FLOPPY_DMA)
+#define fd_disable_dma()        disable_dma(FLOPPY_DMA)
+#define fd_request_dma()        request_dma(FLOPPY_DMA,"floppy")
+#define fd_free_dma()           free_dma(FLOPPY_DMA)
+#define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)
+#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA,mode)
+#define fd_set_dma_addr(addr)   set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr))
+#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
+#define fd_enable_irq()         enable_irq(FLOPPY_IRQ)
+#define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
+#define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt,\
+					    0, "floppy", NULL)
+#define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL)
+
+#ifdef CONFIG_PCI
+
+#include <linux/pci.h>
+
+#define fd_dma_setup(addr,size,mode,io) alpha_fd_dma_setup(addr,size,mode,io)
+
+static __inline__ int 
+alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
+{
+	static unsigned long prev_size;
+	static dma_addr_t bus_addr = 0;
+	static char *prev_addr;
+	static int prev_dir;
+	int dir;
+
+	dir = (mode != DMA_MODE_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+
+	if (bus_addr 
+	    && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
+		/* different from last time -- unmap prev */
+		dma_unmap_single(&isa_bridge->dev, bus_addr, prev_size,
+				 prev_dir);
+		bus_addr = 0;
+	}
+
+	if (!bus_addr)	/* need to map it */
+		bus_addr = dma_map_single(&isa_bridge->dev, addr, size, dir);
+
+	/* remember this one as prev */
+	prev_addr = addr;
+	prev_size = size;
+	prev_dir = dir;
+
+	fd_clear_dma_ff();
+	fd_set_dma_mode(mode);
+	set_dma_addr(FLOPPY_DMA, bus_addr);
+	fd_set_dma_count(size);
+	virtual_dma_port = io;
+	fd_enable_dma();
+
+	return 0;
+}
+
+#endif /* CONFIG_PCI */
+
+__inline__ void virtual_dma_init(void)
+{
+	/* Nothing to do on an Alpha */
+}
+
+static int FDC1 = 0x3f0;
+static int FDC2 = -1;
+
+/*
+ * Again, the CMOS information doesn't work on the alpha..
+ */
+#define FLOPPY0_TYPE 6
+#define FLOPPY1_TYPE 0
+
+#define N_FDC 2
+#define N_DRIVE 8
+
+/*
+ * Most Alphas have no problems with floppy DMA crossing 64k borders,
+ * except for certain ones, like XL and RUFFIAN.
+ *
+ * However, the test is simple and fast, and this *is* floppy, after all,
+ * so we do it for all platforms, just to make sure.
+ *
+ * This is advantageous in other circumstances as well, as in moving
+ * about the PCI DMA windows and forcing the floppy to start doing
+ * scatter-gather when it never had before, and there *is* a problem
+ * on that platform... ;-}
+ */
+
+static inline unsigned long CROSS_64KB(void *a, unsigned long s)
+{
+	unsigned long p = (unsigned long)a;
+	return ((p + s - 1) ^ p) & ~0xffffUL;
+}
+
+#define EXTRA_FLOPPY_PARAMS
+
+#endif /* __ASM_ALPHA_FLOPPY_H */
diff --git a/arch/alpha/include/asm/fpu.h b/arch/alpha/include/asm/fpu.h
new file mode 100644
index 000000000..b9691405e
--- /dev/null
+++ b/arch/alpha/include/asm/fpu.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_FPU_H
+#define __ASM_ALPHA_FPU_H
+
+#include <asm/special_insns.h>
+#include <uapi/asm/fpu.h>
+
+/* The following two functions don't need trapb/excb instructions
+   around the mf_fpcr/mt_fpcr instructions because (a) the kernel
+   never generates arithmetic faults and (b) call_pal instructions
+   are implied trap barriers.  */
+
+static inline unsigned long
+rdfpcr(void)
+{
+	unsigned long tmp, ret;
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+	__asm__ __volatile__ (
+		"ftoit $f0,%0\n\t"
+		"mf_fpcr $f0\n\t"
+		"ftoit $f0,%1\n\t"
+		"itoft %0,$f0"
+		: "=r"(tmp), "=r"(ret));
+#else
+	__asm__ __volatile__ (
+		"stt $f0,%0\n\t"
+		"mf_fpcr $f0\n\t"
+		"stt $f0,%1\n\t"
+		"ldt $f0,%0"
+		: "=m"(tmp), "=m"(ret));
+#endif
+
+	return ret;
+}
+
+static inline void
+wrfpcr(unsigned long val)
+{
+	unsigned long tmp;
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+	__asm__ __volatile__ (
+		"ftoit $f0,%0\n\t"
+		"itoft %1,$f0\n\t"
+		"mt_fpcr $f0\n\t"
+		"itoft %0,$f0"
+		: "=&r"(tmp) : "r"(val));
+#else
+	__asm__ __volatile__ (
+		"stt $f0,%0\n\t"
+		"ldt $f0,%1\n\t"
+		"mt_fpcr $f0\n\t"
+		"ldt $f0,%0"
+		: "=m"(tmp) : "m"(val));
+#endif
+}
+
+static inline unsigned long
+swcr_update_status(unsigned long swcr, unsigned long fpcr)
+{
+	/* EV6 implements most of the bits in hardware.  Collect
+	   the acrued exception bits from the real fpcr.  */
+	if (implver() == IMPLVER_EV6) {
+		swcr &= ~IEEE_STATUS_MASK;
+		swcr |= (fpcr >> 35) & IEEE_STATUS_MASK;
+	}
+	return swcr;
+}
+
+extern unsigned long alpha_read_fp_reg (unsigned long reg);
+extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
+extern unsigned long alpha_read_fp_reg_s (unsigned long reg);
+extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val);
+
+#endif /* __ASM_ALPHA_FPU_H */
diff --git a/arch/alpha/include/asm/ftrace.h b/arch/alpha/include/asm/ftrace.h
new file mode 100644
index 000000000..40a8c178f
--- /dev/null
+++ b/arch/alpha/include/asm/ftrace.h
@@ -0,0 +1 @@
+/* empty */
diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
new file mode 100644
index 000000000..da67afd57
--- /dev/null
+++ b/arch/alpha/include/asm/futex.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_FUTEX_H
+#define _ASM_ALPHA_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <linux/uaccess.h>
+#include <asm/errno.h>
+#include <asm/barrier.h>
+
+#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)	\
+	__asm__ __volatile__(					\
+		__ASM_SMP_MB					\
+	"1:	ldl_l	%0,0(%2)\n"				\
+		insn						\
+	"2:	stl_c	%1,0(%2)\n"				\
+	"	beq	%1,4f\n"				\
+	"	mov	$31,%1\n"				\
+	"3:	.subsection 2\n"				\
+	"4:	br	1b\n"					\
+	"	.previous\n"					\
+	EXC(1b,3b,$31,%1)					\
+	EXC(2b,3b,$31,%1)					\
+	:	"=&r" (oldval), "=&r"(ret)			\
+	:	"r" (uaddr), "r"(oparg)				\
+	:	"memory")
+
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
+{
+	int oldval = 0, ret;
+
+	if (!access_ok(uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	switch (op) {
+	case FUTEX_OP_SET:
+		__futex_atomic_op("mov %3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ADD:
+		__futex_atomic_op("addl %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_OR:
+		__futex_atomic_op("or %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ANDN:
+		__futex_atomic_op("andnot %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_XOR:
+		__futex_atomic_op("xor %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	default:
+		ret = -ENOSYS;
+	}
+
+	if (!ret)
+		*oval = oldval;
+
+	return ret;
+}
+
+static inline int
+futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+			      u32 oldval, u32 newval)
+{
+	int ret = 0, cmp;
+	u32 prev;
+
+	if (!access_ok(uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	__asm__ __volatile__ (
+		__ASM_SMP_MB
+	"1:	ldl_l	%1,0(%3)\n"
+	"	cmpeq	%1,%4,%2\n"
+	"	beq	%2,3f\n"
+	"	mov	%5,%2\n"
+	"2:	stl_c	%2,0(%3)\n"
+	"	beq	%2,4f\n"
+	"3:	.subsection 2\n"
+	"4:	br	1b\n"
+	"	.previous\n"
+	EXC(1b,3b,$31,%0)
+	EXC(2b,3b,$31,%0)
+	:	"+r"(ret), "=&r"(prev), "=&r"(cmp)
+	:	"r"(uaddr), "r"((long)(int)oldval), "r"(newval)
+	:	"memory");
+
+	*uval = prev;
+	return ret;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_ALPHA_FUTEX_H */
diff --git a/arch/alpha/include/asm/gct.h b/arch/alpha/include/asm/gct.h
new file mode 100644
index 000000000..2847449fb
--- /dev/null
+++ b/arch/alpha/include/asm/gct.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_GCT_H
+#define __ALPHA_GCT_H
+
+typedef u64 gct_id;
+typedef u64 gct6_handle;
+
+typedef struct __gct6_node {
+	u8 type;	
+	u8 subtype;
+	u16 size;
+	u32 hd_extension;
+	gct6_handle owner;
+	gct6_handle active_user;
+	gct_id id;
+	u64 flags;
+	u16 rev;
+	u16 change_counter;
+	u16 max_child;
+	u16 reserved1;
+	gct6_handle saved_owner;
+	gct6_handle affinity;
+	gct6_handle parent;
+	gct6_handle next;
+	gct6_handle prev;
+	gct6_handle child;
+	u64 fw_flags;
+	u64 os_usage;
+	u64 fru_id;
+	u32 checksum;
+	u32 magic;	/* 'GLXY' */
+} gct6_node;
+
+typedef struct {
+	u8 type;	
+	u8 subtype;
+	void (*callout)(gct6_node *);
+} gct6_search_struct;
+
+#define GCT_NODE_MAGIC	  0x59584c47	/* 'GLXY' */
+
+/* 
+ * node types 
+ */
+#define GCT_TYPE_HOSE			0x0E
+
+/*
+ * node subtypes
+ */
+#define GCT_SUBTYPE_IO_PORT_MODULE	0x2C
+
+#define GCT_NODE_PTR(off) ((gct6_node *)((char *)hwrpb + 		\
+					 hwrpb->frut_offset + 		\
+					 (gct6_handle)(off)))		\
+
+int gct6_find_nodes(gct6_node *, gct6_search_struct *);
+
+#endif /* __ALPHA_GCT_H */
+
diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h
new file mode 100644
index 000000000..5ce5b34e8
--- /dev/null
+++ b/arch/alpha/include/asm/hardirq.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HARDIRQ_H
+#define _ALPHA_HARDIRQ_H
+
+void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ALPHA_HARDIRQ_H */
diff --git a/arch/alpha/include/asm/hw_irq.h b/arch/alpha/include/asm/hw_irq.h
new file mode 100644
index 000000000..e2d81ac0d
--- /dev/null
+++ b/arch/alpha/include/asm/hw_irq.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HW_IRQ_H
+#define _ALPHA_HW_IRQ_H
+
+
+extern volatile unsigned long irq_err_count;
+DECLARE_PER_CPU(unsigned long, irq_pmi_count);
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define ACTUAL_NR_IRQS	alpha_mv.nr_irqs
+#else
+#define ACTUAL_NR_IRQS	NR_IRQS
+#endif
+
+#endif
diff --git a/arch/alpha/include/asm/hwrpb.h b/arch/alpha/include/asm/hwrpb.h
new file mode 100644
index 000000000..fc76f3626
--- /dev/null
+++ b/arch/alpha/include/asm/hwrpb.h
@@ -0,0 +1,221 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_HWRPB_H
+#define __ALPHA_HWRPB_H
+
+#define INIT_HWRPB ((struct hwrpb_struct *) 0x10000000)
+
+/*
+ * DEC processor types for Alpha systems.  Found in HWRPB.
+ * These values are architected.
+ */
+
+#define EV3_CPU                 1       /* EV3                  */
+#define EV4_CPU                 2       /* EV4 (21064)          */
+#define LCA4_CPU                4       /* LCA4 (21066/21068)   */
+#define EV5_CPU                 5       /* EV5 (21164)          */
+#define EV45_CPU                6       /* EV4.5 (21064/xxx)    */
+#define EV56_CPU		7	/* EV5.6 (21164)	*/
+#define EV6_CPU			8	/* EV6 (21264)		*/
+#define PCA56_CPU		9	/* PCA56 (21164PC)	*/
+#define PCA57_CPU		10	/* PCA57 (notyet)	*/
+#define EV67_CPU		11	/* EV67 (21264A)	*/
+#define EV68CB_CPU		12	/* EV68CB (21264C)	*/
+#define EV68AL_CPU		13	/* EV68AL (21264B)	*/
+#define EV68CX_CPU		14	/* EV68CX (21264D)	*/
+#define EV7_CPU			15	/* EV7 (21364)		*/
+#define EV79_CPU		16	/* EV79 (21364??)	*/
+#define EV69_CPU		17	/* EV69 (21264/EV69A)	*/
+
+/*
+ * DEC system types for Alpha systems.  Found in HWRPB.
+ * These values are architected.
+ */
+
+#define ST_ADU			  1	/* Alpha ADU systype	*/
+#define ST_DEC_4000		  2	/* Cobra systype	*/
+#define ST_DEC_7000		  3	/* Ruby systype		*/
+#define ST_DEC_3000_500		  4	/* Flamingo systype	*/
+#define ST_DEC_2000_300		  6	/* Jensen systype	*/
+#define ST_DEC_3000_300		  7	/* Pelican systype	*/
+#define ST_DEC_2100_A500	  9	/* Sable systype	*/
+#define ST_DEC_AXPVME_64	 10	/* AXPvme system type	*/
+#define ST_DEC_AXPPCI_33	 11	/* NoName system type	*/
+#define ST_DEC_TLASER		 12	/* Turbolaser systype	*/
+#define ST_DEC_2100_A50		 13	/* Avanti systype	*/
+#define ST_DEC_MUSTANG		 14	/* Mustang systype	*/
+#define ST_DEC_ALCOR		 15	/* Alcor (EV5) systype	*/
+#define ST_DEC_1000		 17	/* Mikasa systype	*/
+#define ST_DEC_EB64		 18	/* EB64 systype		*/
+#define ST_DEC_EB66		 19	/* EB66 systype		*/
+#define ST_DEC_EB64P		 20	/* EB64+ systype	*/
+#define ST_DEC_BURNS		 21	/* laptop systype	*/
+#define ST_DEC_RAWHIDE		 22	/* Rawhide systype	*/
+#define ST_DEC_K2		 23	/* K2 systype		*/
+#define ST_DEC_LYNX		 24	/* Lynx systype		*/
+#define ST_DEC_XL		 25	/* Alpha XL systype	*/
+#define ST_DEC_EB164		 26	/* EB164 systype	*/
+#define ST_DEC_NORITAKE		 27	/* Noritake systype	*/
+#define ST_DEC_CORTEX		 28	/* Cortex systype	*/
+#define ST_DEC_MIATA		 30	/* Miata systype        */
+#define ST_DEC_XXM		 31	/* XXM systype		*/
+#define ST_DEC_TAKARA		 32	/* Takara systype	*/
+#define ST_DEC_YUKON		 33	/* Yukon systype	*/
+#define ST_DEC_TSUNAMI		 34	/* Tsunami systype	*/
+#define ST_DEC_WILDFIRE		 35	/* Wildfire systype	*/
+#define ST_DEC_CUSCO		 36	/* CUSCO systype	*/
+#define ST_DEC_EIGER		 37	/* Eiger systype	*/
+#define ST_DEC_TITAN		 38	/* Titan systype	*/
+#define ST_DEC_MARVEL		 39	/* Marvel systype	*/
+
+/* UNOFFICIAL!!! */
+#define ST_UNOFFICIAL_BIAS	100
+#define ST_DTI_RUFFIAN		101	/* RUFFIAN systype	*/
+
+/* Alpha Processor, Inc. systems */
+#define ST_API_BIAS		200
+#define ST_API_NAUTILUS		201	/* UP1000 systype	*/
+
+struct pcb_struct {
+	unsigned long ksp;
+	unsigned long usp;
+	unsigned long ptbr;
+	unsigned int pcc;
+	unsigned int asn;
+	unsigned long unique;
+	unsigned long flags;
+	unsigned long res1, res2;
+};
+
+struct percpu_struct {
+	unsigned long hwpcb[16];
+	unsigned long flags;
+	unsigned long pal_mem_size;
+	unsigned long pal_scratch_size;
+	unsigned long pal_mem_pa;
+	unsigned long pal_scratch_pa;
+	unsigned long pal_revision;
+	unsigned long type;
+	unsigned long variation;
+	unsigned long revision;
+	unsigned long serial_no[2];
+	unsigned long logout_area_pa;
+	unsigned long logout_area_len;
+	unsigned long halt_PCBB;
+	unsigned long halt_PC;
+	unsigned long halt_PS;
+	unsigned long halt_arg;
+	unsigned long halt_ra;
+	unsigned long halt_pv;
+	unsigned long halt_reason;
+	unsigned long res;
+	unsigned long ipc_buffer[21];
+	unsigned long palcode_avail[16];
+	unsigned long compatibility;
+	unsigned long console_data_log_pa;
+	unsigned long console_data_log_length;
+	unsigned long bcache_info;
+};
+
+struct procdesc_struct {
+	unsigned long weird_vms_stuff;
+	unsigned long address;
+};
+
+struct vf_map_struct {
+	unsigned long va;
+	unsigned long pa;
+	unsigned long count;
+};
+
+struct crb_struct {
+	struct procdesc_struct * dispatch_va;
+	struct procdesc_struct * dispatch_pa;
+	struct procdesc_struct * fixup_va;
+	struct procdesc_struct * fixup_pa;
+	/* virtual->physical map */
+	unsigned long map_entries;
+	unsigned long map_pages;
+	struct vf_map_struct map[1];
+};
+
+struct memclust_struct {
+	unsigned long start_pfn;
+	unsigned long numpages;
+	unsigned long numtested;
+	unsigned long bitmap_va;
+	unsigned long bitmap_pa;
+	unsigned long bitmap_chksum;
+	unsigned long usage;
+};
+
+struct memdesc_struct {
+	unsigned long chksum;
+	unsigned long optional_pa;
+	unsigned long numclusters;
+	struct memclust_struct cluster[];
+};
+
+struct dsr_struct {
+	long smm;			/* SMM nubber used by LMF       */
+	unsigned long  lurt_off;	/* offset to LURT table         */
+	unsigned long  sysname_off;	/* offset to sysname char count */
+};
+
+struct hwrpb_struct {
+	unsigned long phys_addr;	/* check: physical address of the hwrpb */
+	unsigned long id;		/* check: "HWRPB\0\0\0" */
+	unsigned long revision;	
+	unsigned long size;		/* size of hwrpb */
+	unsigned long cpuid;
+	unsigned long pagesize;		/* 8192, I hope */
+	unsigned long pa_bits;		/* number of physical address bits */
+	unsigned long max_asn;
+	unsigned char ssn[16];		/* system serial number: big bother is watching */
+	unsigned long sys_type;
+	unsigned long sys_variation;
+	unsigned long sys_revision;
+	unsigned long intr_freq;	/* interval clock frequency * 4096 */
+	unsigned long cycle_freq;	/* cycle counter frequency */
+	unsigned long vptb;		/* Virtual Page Table Base address */
+	unsigned long res1;
+	unsigned long tbhb_offset;	/* Translation Buffer Hint Block */
+	unsigned long nr_processors;
+	unsigned long processor_size;
+	unsigned long processor_offset;
+	unsigned long ctb_nr;
+	unsigned long ctb_size;		/* console terminal block size */
+	unsigned long ctbt_offset;	/* console terminal block table offset */
+	unsigned long crb_offset;	/* console callback routine block */
+	unsigned long mddt_offset;	/* memory data descriptor table */
+	unsigned long cdb_offset;	/* configuration data block (or NULL) */
+	unsigned long frut_offset;	/* FRU table (or NULL) */
+	void (*save_terminal)(unsigned long);
+	unsigned long save_terminal_data;
+	void (*restore_terminal)(unsigned long);
+	unsigned long restore_terminal_data;
+	void (*CPU_restart)(unsigned long);
+	unsigned long CPU_restart_data;
+	unsigned long res2;
+	unsigned long res3;
+	unsigned long chksum;
+	unsigned long rxrdy;
+	unsigned long txrdy;
+	unsigned long dsr_offset;	/* "Dynamic System Recognition Data Block Table" */
+};
+
+#ifdef __KERNEL__
+
+extern struct hwrpb_struct *hwrpb;
+
+static inline void
+hwrpb_update_checksum(struct hwrpb_struct *h)
+{
+	unsigned long sum = 0, *l;
+        for (l = (unsigned long *) h; l < (unsigned long *) &h->chksum; ++l)
+                sum += *l;
+        h->chksum = sum;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_HWRPB_H */
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
new file mode 100644
index 000000000..1c3605d87
--- /dev/null
+++ b/arch/alpha/include/asm/io.h
@@ -0,0 +1,684 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IO_H
+#define __ALPHA_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/compiler.h>
+#include <asm/machvec.h>
+#include <asm/hwrpb.h>
+
+/* The generic header contains only prototypes.  Including it ensures that
+   the implementation we have here matches that interface.  */
+#include <asm-generic/iomap.h>
+
+/* We don't use IO slowdowns on the Alpha, but.. */
+#define __SLOW_DOWN_IO	do { } while (0)
+#define SLOW_DOWN_IO	do { } while (0)
+
+/*
+ * Virtual -> physical identity mapping starts at this offset
+ */
+#ifdef USE_48_BIT_KSEG
+#define IDENT_ADDR     0xffff800000000000UL
+#else
+#define IDENT_ADDR     0xfffffc0000000000UL
+#endif
+
+/*
+ * We try to avoid hae updates (thus the cache), but when we
+ * do need to update the hae, we need to do it atomically, so
+ * that any interrupts wouldn't get confused with the hae
+ * register not being up-to-date with respect to the hardware
+ * value.
+ */
+extern inline void __set_hae(unsigned long new_hae)
+{
+	unsigned long flags = swpipl(IPL_MAX);
+
+	barrier();
+
+	alpha_mv.hae_cache = new_hae;
+	*alpha_mv.hae_register = new_hae;
+	mb();
+	/* Re-read to make sure it was written.  */
+	new_hae = *alpha_mv.hae_register;
+
+	setipl(flags);
+	barrier();
+}
+
+extern inline void set_hae(unsigned long new_hae)
+{
+	if (new_hae != alpha_mv.hae_cache)
+		__set_hae(new_hae);
+}
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ */
+#ifdef USE_48_BIT_KSEG
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+	return (unsigned long)address - IDENT_ADDR;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+	return (void *) (address + IDENT_ADDR);
+}
+#else
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+        unsigned long phys = (unsigned long)address;
+
+	/* Sign-extend from bit 41.  */
+	phys <<= (64 - 41);
+	phys = (long)phys >> (64 - 41);
+
+	/* Crop to the physical address width of the processor.  */
+        phys &= (1ul << hwrpb->pa_bits) - 1;
+
+        return phys;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+        return (void *)(IDENT_ADDR + (address & ((1ul << 41) - 1)));
+}
+#endif
+
+#define virt_to_phys		virt_to_phys
+#define phys_to_virt		phys_to_virt
+#define page_to_phys(page)	page_to_pa(page)
+
+/* Maximum PIO space address supported?  */
+#define IO_SPACE_LIMIT 0xffff
+
+/*
+ * Change addresses as seen by the kernel (virtual) to addresses as
+ * seen by a device (bus), and vice versa.
+ *
+ * Note that this only works for a limited range of kernel addresses,
+ * and very well may not span all memory.  Consider this interface 
+ * deprecated in favour of the DMA-mapping API.
+ */
+extern unsigned long __direct_map_base;
+extern unsigned long __direct_map_size;
+
+static inline unsigned long __deprecated isa_virt_to_bus(volatile void *address)
+{
+	unsigned long phys = virt_to_phys(address);
+	unsigned long bus = phys + __direct_map_base;
+	return phys <= __direct_map_size ? bus : 0;
+}
+#define isa_virt_to_bus isa_virt_to_bus
+
+static inline void * __deprecated isa_bus_to_virt(unsigned long address)
+{
+	void *virt;
+
+	/* This check is a sanity check but also ensures that bus address 0
+	   maps to virtual address 0 which is useful to detect null pointers
+	   (the NCR driver is much simpler if NULL pointers are preserved).  */
+	address -= __direct_map_base;
+	virt = phys_to_virt(address);
+	return (long)address <= 0 ? NULL : virt;
+}
+#define isa_bus_to_virt isa_bus_to_virt
+
+/*
+ * There are different chipsets to interface the Alpha CPUs to the world.
+ */
+
+#define IO_CONCAT(a,b)	_IO_CONCAT(a,b)
+#define _IO_CONCAT(a,b)	a ## _ ## b
+
+#ifdef CONFIG_ALPHA_GENERIC
+
+/* In a generic kernel, we always go through the machine vector.  */
+
+#define REMAP1(TYPE, NAME, QUAL)					\
+static inline TYPE generic_##NAME(QUAL void __iomem *addr)		\
+{									\
+	return alpha_mv.mv_##NAME(addr);				\
+}
+
+#define REMAP2(TYPE, NAME, QUAL)					\
+static inline void generic_##NAME(TYPE b, QUAL void __iomem *addr)	\
+{									\
+	alpha_mv.mv_##NAME(b, addr);					\
+}
+
+REMAP1(unsigned int, ioread8, const)
+REMAP1(unsigned int, ioread16, const)
+REMAP1(unsigned int, ioread32, const)
+REMAP1(u64, ioread64, const)
+REMAP1(u8, readb, const volatile)
+REMAP1(u16, readw, const volatile)
+REMAP1(u32, readl, const volatile)
+REMAP1(u64, readq, const volatile)
+
+REMAP2(u8, iowrite8, /**/)
+REMAP2(u16, iowrite16, /**/)
+REMAP2(u32, iowrite32, /**/)
+REMAP2(u64, iowrite64, /**/)
+REMAP2(u8, writeb, volatile)
+REMAP2(u16, writew, volatile)
+REMAP2(u32, writel, volatile)
+REMAP2(u64, writeq, volatile)
+
+#undef REMAP1
+#undef REMAP2
+
+extern inline void __iomem *generic_ioportmap(unsigned long a)
+{
+	return alpha_mv.mv_ioportmap(a);
+}
+
+static inline void __iomem *generic_ioremap(unsigned long a, unsigned long s)
+{
+	return alpha_mv.mv_ioremap(a, s);
+}
+
+static inline void generic_iounmap(volatile void __iomem *a)
+{
+	return alpha_mv.mv_iounmap(a);
+}
+
+static inline int generic_is_ioaddr(unsigned long a)
+{
+	return alpha_mv.mv_is_ioaddr(a);
+}
+
+static inline int generic_is_mmio(const volatile void __iomem *a)
+{
+	return alpha_mv.mv_is_mmio(a);
+}
+
+#define __IO_PREFIX		generic
+#define generic_trivial_rw_bw	0
+#define generic_trivial_rw_lq	0
+#define generic_trivial_io_bw	0
+#define generic_trivial_io_lq	0
+#define generic_trivial_iounmap	0
+
+#else
+
+#if defined(CONFIG_ALPHA_APECS)
+# include <asm/core_apecs.h>
+#elif defined(CONFIG_ALPHA_CIA)
+# include <asm/core_cia.h>
+#elif defined(CONFIG_ALPHA_IRONGATE)
+# include <asm/core_irongate.h>
+#elif defined(CONFIG_ALPHA_JENSEN)
+# include <asm/jensen.h>
+#elif defined(CONFIG_ALPHA_LCA)
+# include <asm/core_lca.h>
+#elif defined(CONFIG_ALPHA_MARVEL)
+# include <asm/core_marvel.h>
+#elif defined(CONFIG_ALPHA_MCPCIA)
+# include <asm/core_mcpcia.h>
+#elif defined(CONFIG_ALPHA_POLARIS)
+# include <asm/core_polaris.h>
+#elif defined(CONFIG_ALPHA_T2)
+# include <asm/core_t2.h>
+#elif defined(CONFIG_ALPHA_TSUNAMI)
+# include <asm/core_tsunami.h>
+#elif defined(CONFIG_ALPHA_TITAN)
+# include <asm/core_titan.h>
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# include <asm/core_wildfire.h>
+#else
+#error "What system is this?"
+#endif
+
+#endif /* GENERIC */
+
+/*
+ * We always have external versions of these routines.
+ */
+extern u8		inb(unsigned long port);
+extern u16		inw(unsigned long port);
+extern u32		inl(unsigned long port);
+extern void		outb(u8 b, unsigned long port);
+extern void		outw(u16 b, unsigned long port);
+extern void		outl(u32 b, unsigned long port);
+#define inb inb
+#define inw inw
+#define inl inl
+#define outb outb
+#define outw outw
+#define outl outl
+
+extern u8		readb(const volatile void __iomem *addr);
+extern u16		readw(const volatile void __iomem *addr);
+extern u32		readl(const volatile void __iomem *addr);
+extern u64		readq(const volatile void __iomem *addr);
+extern void		writeb(u8 b, volatile void __iomem *addr);
+extern void		writew(u16 b, volatile void __iomem *addr);
+extern void		writel(u32 b, volatile void __iomem *addr);
+extern void		writeq(u64 b, volatile void __iomem *addr);
+#define readb readb
+#define readw readw
+#define readl readl
+#define readq readq
+#define writeb writeb
+#define writew writew
+#define writel writel
+#define writeq writeq
+
+extern u8		__raw_readb(const volatile void __iomem *addr);
+extern u16		__raw_readw(const volatile void __iomem *addr);
+extern u32		__raw_readl(const volatile void __iomem *addr);
+extern u64		__raw_readq(const volatile void __iomem *addr);
+extern void		__raw_writeb(u8 b, volatile void __iomem *addr);
+extern void		__raw_writew(u16 b, volatile void __iomem *addr);
+extern void		__raw_writel(u32 b, volatile void __iomem *addr);
+extern void		__raw_writeq(u64 b, volatile void __iomem *addr);
+#define __raw_readb __raw_readb
+#define __raw_readw __raw_readw
+#define __raw_readl __raw_readl
+#define __raw_readq __raw_readq
+#define __raw_writeb __raw_writeb
+#define __raw_writew __raw_writew
+#define __raw_writel __raw_writel
+#define __raw_writeq __raw_writeq
+
+/*
+ * Mapping from port numbers to __iomem space is pretty easy.
+ */
+
+/* These two have to be extern inline because of the extern prototype from
+   <asm-generic/iomap.h>.  It is not legal to mix "extern" and "static" for
+   the same declaration.  */
+extern inline void __iomem *ioport_map(unsigned long port, unsigned int size)
+{
+	return IO_CONCAT(__IO_PREFIX,ioportmap) (port);
+}
+
+extern inline void ioport_unmap(void __iomem *addr)
+{
+}
+
+#define ioport_map ioport_map
+#define ioport_unmap ioport_unmap
+
+static inline void __iomem *ioremap(unsigned long port, unsigned long size)
+{
+	return IO_CONCAT(__IO_PREFIX,ioremap) (port, size);
+}
+
+#define ioremap_wc ioremap
+#define ioremap_uc ioremap
+
+static inline void iounmap(volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,iounmap)(addr);
+}
+
+static inline int __is_ioaddr(unsigned long addr)
+{
+	return IO_CONCAT(__IO_PREFIX,is_ioaddr)(addr);
+}
+#define __is_ioaddr(a)		__is_ioaddr((unsigned long)(a))
+
+static inline int __is_mmio(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,is_mmio)(addr);
+}
+
+
+/*
+ * If the actual I/O bits are sufficiently trivial, then expand inline.
+ */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline unsigned int ioread8(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+	mb();
+	return ret;
+}
+
+extern inline unsigned int ioread16(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+	mb();
+	return ret;
+}
+
+extern inline void iowrite8(u8 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite8)(b, addr);
+}
+
+extern inline void iowrite16(u16 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite16)(b, addr);
+}
+
+extern inline u8 inb(unsigned long port)
+{
+	return ioread8(ioport_map(port, 1));
+}
+
+extern inline u16 inw(unsigned long port)
+{
+	return ioread16(ioport_map(port, 2));
+}
+
+extern inline void outb(u8 b, unsigned long port)
+{
+	iowrite8(b, ioport_map(port, 1));
+}
+
+extern inline void outw(u16 b, unsigned long port)
+{
+	iowrite16(b, ioport_map(port, 2));
+}
+#endif
+
+#define ioread8 ioread8
+#define ioread16 ioread16
+#define iowrite8 iowrite8
+#define iowrite16 iowrite16
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline unsigned int ioread32(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr);
+	mb();
+	return ret;
+}
+
+extern inline u64 ioread64(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread64)(addr);
+	mb();
+	return ret;
+}
+
+extern inline void iowrite32(u32 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite32)(b, addr);
+}
+
+extern inline void iowrite64(u64 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite64)(b, addr);
+}
+
+extern inline u32 inl(unsigned long port)
+{
+	return ioread32(ioport_map(port, 4));
+}
+
+extern inline void outl(u32 b, unsigned long port)
+{
+	iowrite32(b, ioport_map(port, 4));
+}
+#endif
+
+#define ioread32 ioread32
+#define ioread64 ioread64
+#define iowrite32 iowrite32
+#define iowrite64 iowrite64
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+extern inline u8 __raw_readb(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readb)(addr);
+}
+
+extern inline u16 __raw_readw(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readw)(addr);
+}
+
+extern inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeb)(b, addr);
+}
+
+extern inline void __raw_writew(u16 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writew)(b, addr);
+}
+
+extern inline u8 readb(const volatile void __iomem *addr)
+{
+	u8 ret;
+	mb();
+	ret = __raw_readb(addr);
+	mb();
+	return ret;
+}
+
+extern inline u16 readw(const volatile void __iomem *addr)
+{
+	u16 ret;
+	mb();
+	ret = __raw_readw(addr);
+	mb();
+	return ret;
+}
+
+extern inline void writeb(u8 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeb(b, addr);
+}
+
+extern inline void writew(u16 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writew(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+extern inline u32 __raw_readl(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readl)(addr);
+}
+
+extern inline u64 __raw_readq(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readq)(addr);
+}
+
+extern inline void __raw_writel(u32 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writel)(b, addr);
+}
+
+extern inline void __raw_writeq(u64 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeq)(b, addr);
+}
+
+extern inline u32 readl(const volatile void __iomem *addr)
+{
+	u32 ret;
+	mb();
+	ret = __raw_readl(addr);
+	mb();
+	return ret;
+}
+
+extern inline u64 readq(const volatile void __iomem *addr)
+{
+	u64 ret;
+	mb();
+	ret = __raw_readq(addr);
+	mb();
+	return ret;
+}
+
+extern inline void writel(u32 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writel(b, addr);
+}
+
+extern inline void writeq(u64 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeq(b, addr);
+}
+#endif
+
+#define ioread16be(p) swab16(ioread16(p))
+#define ioread32be(p) swab32(ioread32(p))
+#define iowrite16be(v,p) iowrite16(swab16(v), (p))
+#define iowrite32be(v,p) iowrite32(swab32(v), (p))
+
+#define inb_p		inb
+#define inw_p		inw
+#define inl_p		inl
+#define outb_p		outb
+#define outw_p		outw
+#define outl_p		outl
+
+extern u8 readb_relaxed(const volatile void __iomem *addr);
+extern u16 readw_relaxed(const volatile void __iomem *addr);
+extern u32 readl_relaxed(const volatile void __iomem *addr);
+extern u64 readq_relaxed(const volatile void __iomem *addr);
+#define readb_relaxed readb_relaxed
+#define readw_relaxed readw_relaxed
+#define readl_relaxed readl_relaxed
+#define readq_relaxed readq_relaxed
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline u8 readb_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readb(addr);
+}
+
+extern inline u16 readw_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readw(addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline u32 readl_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readl(addr);
+}
+
+extern inline u64 readq_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readq(addr);
+}
+#endif
+
+#define writeb_relaxed	writeb
+#define writew_relaxed	writew
+#define writel_relaxed	writel
+#define writeq_relaxed	writeq
+
+/*
+ * String version of IO memory access ops:
+ */
+extern void memcpy_fromio(void *, const volatile void __iomem *, long);
+extern void memcpy_toio(volatile void __iomem *, const void *, long);
+extern void _memset_c_io(volatile void __iomem *, unsigned long, long);
+
+static inline void memset_io(volatile void __iomem *addr, u8 c, long len)
+{
+	_memset_c_io(addr, 0x0101010101010101UL * c, len);
+}
+
+#define __HAVE_ARCH_MEMSETW_IO
+static inline void memsetw_io(volatile void __iomem *addr, u16 c, long len)
+{
+	_memset_c_io(addr, 0x0001000100010001UL * c, len);
+}
+
+#define memset_io memset_io
+#define memcpy_fromio memcpy_fromio
+#define memcpy_toio memcpy_toio
+
+/*
+ * String versions of in/out ops:
+ */
+extern void insb (unsigned long port, void *dst, unsigned long count);
+extern void insw (unsigned long port, void *dst, unsigned long count);
+extern void insl (unsigned long port, void *dst, unsigned long count);
+extern void outsb (unsigned long port, const void *src, unsigned long count);
+extern void outsw (unsigned long port, const void *src, unsigned long count);
+extern void outsl (unsigned long port, const void *src, unsigned long count);
+
+#define insb insb
+#define insw insw
+#define insl insl
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+/*
+ * The Alpha Jensen hardware for some rather strange reason puts
+ * the RTC clock at 0x170 instead of 0x70. Probably due to some
+ * misguided idea about using 0x70 for NMI stuff.
+ *
+ * These defines will override the defaults when doing RTC queries
+ */
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define RTC_PORT(x)	((x) + alpha_mv.rtc_port)
+#else
+# ifdef CONFIG_ALPHA_JENSEN
+#  define RTC_PORT(x)	(0x170+(x))
+# else
+#  define RTC_PORT(x)	(0x70 + (x))
+# endif
+#endif
+#define RTC_ALWAYS_BCD	0
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)	__va(p)
+
+/*
+ * These get provided from <asm-generic/iomap.h> since alpha does not
+ * select GENERIC_IOMAP.
+ */
+#define ioread64 ioread64
+#define iowrite64 iowrite64
+#define ioread64be ioread64be
+#define iowrite64be iowrite64be
+#define ioread8_rep ioread8_rep
+#define ioread16_rep ioread16_rep
+#define ioread32_rep ioread32_rep
+#define iowrite8_rep iowrite8_rep
+#define iowrite16_rep iowrite16_rep
+#define iowrite32_rep iowrite32_rep
+#define pci_iounmap pci_iounmap
+
+#include <asm-generic/io.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IO_H */
diff --git a/arch/alpha/include/asm/io_trivial.h b/arch/alpha/include/asm/io_trivial.h
new file mode 100644
index 000000000..00032093b
--- /dev/null
+++ b/arch/alpha/include/asm/io_trivial.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Trivial implementations of basic i/o routines.  Assumes that all
+   of the hard work has been done by ioremap and ioportmap, and that
+   access to i/o space is linear.  */
+
+/* This file may be included multiple times.  */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,ioread8)(const void __iomem *a)
+{
+	return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,ioread16)(const void __iomem *a)
+{
+	return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite8)(u8 b, void __iomem *a)
+{
+	__kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite16)(u16 b, void __iomem *a)
+{
+	__kernel_stw(b, *(volatile u16 __force *)a);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+__EXTERN_INLINE u32
+IO_CONCAT(__IO_PREFIX,ioread32)(const void __iomem *a)
+{
+	return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite32)(u32 b, void __iomem *a)
+{
+	*(volatile u32 __force *)a = b;
+}
+
+__EXTERN_INLINE u64
+IO_CONCAT(__IO_PREFIX,ioread64)(const void __iomem *a)
+{
+	return *(const volatile u64 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite64)(u64 b, void __iomem *a)
+{
+	*(volatile u64 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+	return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+	return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+	__kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+	__kernel_stw(b, *(volatile u16 __force *)a);
+}
+#elif IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 2
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+	const void __iomem *addr = (const void __iomem *)a;
+	return IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+	const void __iomem *addr = (const void __iomem *)a;
+	return IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+	void __iomem *addr = (void __iomem *)a;
+	IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+	void __iomem *addr = (void __iomem *)a;
+	IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+__EXTERN_INLINE u32
+IO_CONCAT(__IO_PREFIX,readl)(const volatile void __iomem *a)
+{
+	return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE u64
+IO_CONCAT(__IO_PREFIX,readq)(const volatile void __iomem *a)
+{
+	return *(const volatile u64 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writel)(u32 b, volatile void __iomem *a)
+{
+	*(volatile u32 __force *)a = b;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeq)(u64 b, volatile void __iomem *a)
+{
+	*(volatile u64 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_iounmap)
+__EXTERN_INLINE void IO_CONCAT(__IO_PREFIX,iounmap)(volatile void __iomem *a)
+{
+}
+#endif
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
new file mode 100644
index 000000000..432402c8e
--- /dev/null
+++ b/arch/alpha/include/asm/irq.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_IRQ_H
+#define _ALPHA_IRQ_H
+
+/*
+ *	linux/include/alpha/irq.h
+ *
+ *	(C) 1994 Linus Torvalds
+ */
+
+#include <linux/linkage.h>
+
+#if   defined(CONFIG_ALPHA_GENERIC)
+
+/* Here NR_IRQS is not exact, but rather an upper bound.  This is used
+   many places throughout the kernel to size static arrays.  That's ok,
+   we'll use alpha_mv.nr_irqs when we want the real thing.  */
+
+/* When LEGACY_START_ADDRESS is selected, we leave out:
+     TITAN
+     WILDFIRE
+     MARVEL
+
+   This helps keep the kernel object size reasonable for the majority
+   of machines.
+*/
+
+# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
+#  define NR_IRQS      (128)           /* max is RAWHIDE/TAKARA */
+# else
+#  define NR_IRQS      (32768 + 16)    /* marvel - 32 pids */
+# endif
+
+#elif defined(CONFIG_ALPHA_CABRIOLET) || \
+      defined(CONFIG_ALPHA_EB66P)     || \
+      defined(CONFIG_ALPHA_EB164)     || \
+      defined(CONFIG_ALPHA_PC164)     || \
+      defined(CONFIG_ALPHA_LX164)
+# define NR_IRQS	35
+
+#elif defined(CONFIG_ALPHA_EB66)      || \
+      defined(CONFIG_ALPHA_EB64P)     || \
+      defined(CONFIG_ALPHA_MIKASA)
+# define NR_IRQS	32
+
+#elif defined(CONFIG_ALPHA_ALCOR)     || \
+      defined(CONFIG_ALPHA_MIATA)     || \
+      defined(CONFIG_ALPHA_RUFFIAN)   || \
+      defined(CONFIG_ALPHA_RX164)     || \
+      defined(CONFIG_ALPHA_NORITAKE)
+# define NR_IRQS	48
+
+#elif defined(CONFIG_ALPHA_SABLE)     || \
+      defined(CONFIG_ALPHA_SX164)
+# define NR_IRQS	40
+
+#elif defined(CONFIG_ALPHA_DP264) || \
+      defined(CONFIG_ALPHA_LYNX)  || \
+      defined(CONFIG_ALPHA_SHARK)
+# define NR_IRQS	64
+
+#elif defined(CONFIG_ALPHA_TITAN)
+#define NR_IRQS		80
+
+#elif defined(CONFIG_ALPHA_RAWHIDE) || \
+      defined(CONFIG_ALPHA_TAKARA) || \
+      defined(CONFIG_ALPHA_EIGER)
+# define NR_IRQS	128
+
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# define NR_IRQS	2048 /* enuff for 8 QBBs */
+
+#elif defined(CONFIG_ALPHA_MARVEL)
+# define NR_IRQS	(32768 + 16) 	/* marvel - 32 pids*/
+
+#else /* everyone else */
+# define NR_IRQS	16
+#endif
+
+static __inline__ int irq_canonicalize(int irq)
+{
+	/*
+	 * XXX is this true for all Alpha's?  The old serial driver
+	 * did it this way for years without any complaints, so....
+	 */
+	return ((irq == 2) ? 9 : irq);
+}
+
+struct pt_regs;
+extern void (*perf_irq)(unsigned long, struct pt_regs *);
+
+#endif /* _ALPHA_IRQ_H */
diff --git a/arch/alpha/include/asm/irq_regs.h b/arch/alpha/include/asm/irq_regs.h
new file mode 100644
index 000000000..3dd9c0b70
--- /dev/null
+++ b/arch/alpha/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/alpha/include/asm/irqflags.h b/arch/alpha/include/asm/irqflags.h
new file mode 100644
index 000000000..9f25d4e0d
--- /dev/null
+++ b/arch/alpha/include/asm/irqflags.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRQFLAGS_H
+#define __ALPHA_IRQFLAGS_H
+
+#include <asm/pal.h>
+
+#define IPL_MIN		0
+#define IPL_SW0		1
+#define IPL_SW1		2
+#define IPL_DEV0	3
+#define IPL_DEV1	4
+#define IPL_TIMER	5
+#define IPL_PERF	6
+#define IPL_POWERFAIL	6
+#define IPL_MCHECK	7
+#define IPL_MAX		7
+
+#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
+#undef IPL_MIN
+#define IPL_MIN		__min_ipl
+extern int __min_ipl;
+#endif
+
+#define getipl()		(rdps() & 7)
+#define setipl(ipl)		((void) swpipl(ipl))
+
+static inline unsigned long arch_local_save_flags(void)
+{
+	return rdps();
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	setipl(IPL_MAX);
+	barrier();
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags = swpipl(IPL_MAX);
+	barrier();
+	return flags;
+}
+
+static inline void arch_local_irq_enable(void)
+{
+	barrier();
+	setipl(IPL_MIN);
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+	barrier();
+	setipl(flags);
+	barrier();
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+	return flags == IPL_MAX;
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(getipl());
+}
+
+#endif /* __ALPHA_IRQFLAGS_H */
diff --git a/arch/alpha/include/asm/jensen.h b/arch/alpha/include/asm/jensen.h
new file mode 100644
index 000000000..66eb049eb
--- /dev/null
+++ b/arch/alpha/include/asm/jensen.h
@@ -0,0 +1,363 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_JENSEN_H
+#define __ALPHA_JENSEN_H
+
+#include <asm/compiler.h>
+
+/*
+ * Defines for the AlphaPC EISA IO and memory address space.
+ */
+
+/*
+ * NOTE! The memory operations do not set any memory barriers, as it's
+ * not needed for cases like a frame buffer that is essentially memory-like.
+ * You need to do them by hand if the operations depend on ordering.
+ *
+ * Similarly, the port IO operations do a "mb" only after a write operation:
+ * if an mb is needed before (as in the case of doing memory mapped IO
+ * first, and then a port IO operation to the same device), it needs to be
+ * done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do the
+ * mb all the time, but right now I'm hoping this will work out.  Avoiding
+ * mb's may potentially be a noticeable speed improvement, but I can't
+ * honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to non-interrupts
+ * is another fun race area.  Don't do it (because if you do, I'll have to
+ * do *everything* with interrupts disabled, ugh).
+ */
+
+/*
+ * EISA Interrupt Acknowledge address
+ */
+#define EISA_INTA		(IDENT_ADDR + 0x100000000UL)
+
+/*
+ * FEPROM addresses
+ */
+#define EISA_FEPROM0		(IDENT_ADDR + 0x180000000UL)
+#define EISA_FEPROM1		(IDENT_ADDR + 0x1A0000000UL)
+
+/*
+ * VL82C106 base address
+ */
+#define EISA_VL82C106		(IDENT_ADDR + 0x1C0000000UL)
+
+/*
+ * EISA "Host Address Extension" address (bits 25-31 of the EISA address)
+ */
+#define EISA_HAE		(IDENT_ADDR + 0x1D0000000UL)
+
+/*
+ * "SYSCTL" register address
+ */
+#define EISA_SYSCTL		(IDENT_ADDR + 0x1E0000000UL)
+
+/*
+ * "spare" register address
+ */
+#define EISA_SPARE		(IDENT_ADDR + 0x1F0000000UL)
+
+/*
+ * EISA memory address offset
+ */
+#define EISA_MEM		(IDENT_ADDR + 0x200000000UL)
+
+/*
+ * EISA IO address offset
+ */
+#define EISA_IO			(IDENT_ADDR + 0x300000000UL)
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Handle the "host address register". This needs to be set
+ * to the high 7 bits of the EISA address.  This is also needed
+ * for EISA IO addresses, which are only 16 bits wide (the
+ * hae needs to be set to 0).
+ *
+ * HAE isn't needed for the local IO operations, though.
+ */
+
+#define JENSEN_HAE_ADDRESS	EISA_HAE
+#define JENSEN_HAE_MASK		0x1ffffff
+
+__EXTERN_INLINE void jensen_set_hae(unsigned long addr)
+{
+	/* hae on the Jensen is bits 31:25 shifted right */
+	addr >>= 25;
+	if (addr != alpha_mv.hae_cache)
+		set_hae(addr);
+}
+
+#define vuip	volatile unsigned int *
+#define vulp	volatile unsigned long *
+
+/*
+ * IO functions
+ *
+ * The "local" functions are those that don't go out to the EISA bus,
+ * but instead act on the VL82C106 chip directly.. This is mainly the
+ * keyboard, RTC,  printer and first two serial lines..
+ *
+ * The local stuff makes for some complications, but it seems to be
+ * gone in the PCI version. I hope I can get DEC suckered^H^H^H^H^H^H^H^H
+ * convinced that I need one of the newer machines.
+ */
+
+__EXTERN_INLINE unsigned int jensen_local_inb(unsigned long addr)
+{
+	return 0xff & *(vuip)((addr << 9) + EISA_VL82C106);
+}
+
+__EXTERN_INLINE void jensen_local_outb(u8 b, unsigned long addr)
+{
+	*(vuip)((addr << 9) + EISA_VL82C106) = b;
+	mb();
+}
+
+__EXTERN_INLINE unsigned int jensen_bus_inb(unsigned long addr)
+{
+	long result;
+
+	jensen_set_hae(0);
+	result = *(volatile int *)((addr << 7) + EISA_IO + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void jensen_bus_outb(u8 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101;
+	mb();
+}
+
+/*
+ * It seems gcc is not very good at optimizing away logical
+ * operations that result in operations across inline functions.
+ * Which is why this is a macro.
+ */
+
+#define jensen_is_local(addr) ( \
+/* keyboard */	(addr == 0x60 || addr == 0x64) || \
+/* RTC */	(addr == 0x170 || addr == 0x171) || \
+/* mb COM2 */	(addr >= 0x2f8 && addr <= 0x2ff) || \
+/* mb LPT1 */	(addr >= 0x3bc && addr <= 0x3be) || \
+/* mb COM2 */	(addr >= 0x3f8 && addr <= 0x3ff))
+
+__EXTERN_INLINE u8 jensen_inb(unsigned long addr)
+{
+	if (jensen_is_local(addr))
+		return jensen_local_inb(addr);
+	else
+		return jensen_bus_inb(addr);
+}
+
+__EXTERN_INLINE void jensen_outb(u8 b, unsigned long addr)
+{
+	if (jensen_is_local(addr))
+		jensen_local_outb(b, addr);
+	else
+		jensen_bus_outb(b, addr);
+}
+
+__EXTERN_INLINE u16 jensen_inw(unsigned long addr)
+{
+	long result;
+
+	jensen_set_hae(0);
+	result = *(volatile int *) ((addr << 7) + EISA_IO + 0x20);
+	result >>= (addr & 3) * 8;
+	return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_inl(unsigned long addr)
+{
+	jensen_set_hae(0);
+	return *(vuip) ((addr << 7) + EISA_IO + 0x60);
+}
+
+__EXTERN_INLINE u64 jensen_inq(unsigned long addr)
+{
+	jensen_set_hae(0);
+	return *(vulp) ((addr << 7) + EISA_IO + 0x60);
+}
+
+__EXTERN_INLINE void jensen_outw(u16 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip) ((addr << 7) + EISA_IO + 0x20) = b * 0x00010001;
+	mb();
+}
+
+__EXTERN_INLINE void jensen_outl(u32 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip) ((addr << 7) + EISA_IO + 0x60) = b;
+	mb();
+}
+
+__EXTERN_INLINE void jensen_outq(u64 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vulp) ((addr << 7) + EISA_IO + 0x60) = b;
+	mb();
+}
+
+/*
+ * Memory functions.
+ */
+
+__EXTERN_INLINE u8 jensen_readb(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	long result;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x00);
+	result >>= (addr & 3) * 8;
+	return 0xffUL & result;
+}
+
+__EXTERN_INLINE u16 jensen_readw(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	long result;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x20);
+	result >>= (addr & 3) * 8;
+	return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_readl(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	return *(vuip) ((addr << 7) + EISA_MEM + 0x60);
+}
+
+__EXTERN_INLINE u64 jensen_readq(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long r0, r1;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	addr = (addr << 7) + EISA_MEM + 0x60;
+	r0 = *(vuip) (addr);
+	r1 = *(vuip) (addr + (4 << 7));
+	return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void jensen_writeb(u8 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x00) = b * 0x01010101;
+}
+
+__EXTERN_INLINE void jensen_writew(u16 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x20) = b * 0x00010001;
+}
+
+__EXTERN_INLINE void jensen_writel(u32 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x60) = b;
+}
+
+__EXTERN_INLINE void jensen_writeq(u64 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	addr = (addr << 7) + EISA_MEM + 0x60;
+	*(vuip) (addr) = b;
+	*(vuip) (addr + (4 << 7)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioremap(unsigned long addr,
+					     unsigned long size)
+{
+	return (void __iomem *)(addr + 0x100000000ul);
+}
+
+__EXTERN_INLINE int jensen_is_ioaddr(unsigned long addr)
+{
+	return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int jensen_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= 0x100000000ul;
+}
+
+/* New-style ioread interface.  All the routines are so ugly for Jensen
+   that it doesn't make sense to merge them.  */
+
+#define IOPORT(OS, NS)							\
+__EXTERN_INLINE u##NS jensen_ioread##NS(const void __iomem *xaddr)	\
+{									\
+	if (jensen_is_mmio(xaddr))					\
+		return jensen_read##OS(xaddr - 0x100000000ul);		\
+	else								\
+		return jensen_in##OS((unsigned long)xaddr);		\
+}									\
+__EXTERN_INLINE void jensen_iowrite##NS(u##NS b, void __iomem *xaddr)	\
+{									\
+	if (jensen_is_mmio(xaddr))					\
+		jensen_write##OS(b, xaddr - 0x100000000ul);		\
+	else								\
+		jensen_out##OS(b, (unsigned long)xaddr);		\
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+IOPORT(q, 64)
+
+#undef IOPORT
+
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		jensen
+#define jensen_trivial_rw_bw	0
+#define jensen_trivial_rw_lq	0
+#define jensen_trivial_io_bw	0
+#define jensen_trivial_io_lq	0
+#define jensen_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_JENSEN_H */
diff --git a/arch/alpha/include/asm/kdebug.h b/arch/alpha/include/asm/kdebug.h
new file mode 100644
index 000000000..6ece1b037
--- /dev/null
+++ b/arch/alpha/include/asm/kdebug.h
@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>
diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h
new file mode 100644
index 000000000..aa8661fa6
--- /dev/null
+++ b/arch/alpha/include/asm/linkage.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define cond_syscall(x)  asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name)					\
+	asm ( #alias " = " #name "\n\t.globl " #alias)
+
+#endif
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
new file mode 100644
index 000000000..fab26a1c9
--- /dev/null
+++ b/arch/alpha/include/asm/local.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_LOCAL_H
+#define _ALPHA_LOCAL_H
+
+#include <linux/percpu.h>
+#include <linux/atomic.h>
+
+typedef struct
+{
+	atomic_long_t a;
+} local_t;
+
+#define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+#define local_read(l)	atomic_long_read(&(l)->a)
+#define local_set(l,i)	atomic_long_set(&(l)->a, (i))
+#define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_add(i,l)	atomic_long_add((i),(&(l)->a))
+#define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
+
+static __inline__ long local_add_return(long i, local_t * l)
+{
+	long temp, result;
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%1\n"
+	"	addq %0,%3,%2\n"
+	"	addq %0,%3,%0\n"
+	"	stq_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+	:"Ir" (i), "m" (l->a.counter) : "memory");
+	return result;
+}
+
+static __inline__ long local_sub_return(long i, local_t * l)
+{
+	long temp, result;
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%1\n"
+	"	subq %0,%3,%2\n"
+	"	subq %0,%3,%0\n"
+	"	stq_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+	:"Ir" (i), "m" (l->a.counter) : "memory");
+	return result;
+}
+
+#define local_cmpxchg(l, o, n) \
+	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
+
+/**
+ * local_add_unless - add unless the number is a given value
+ * @l: pointer of type local_t
+ * @a: the amount to add to l...
+ * @u: ...unless l is equal to u.
+ *
+ * Atomically adds @a to @l, so long as it was not @u.
+ * Returns non-zero if @l was not @u, and zero otherwise.
+ */
+#define local_add_unless(l, a, u)				\
+({								\
+	long c, old;						\
+	c = local_read(l);					\
+	for (;;) {						\
+		if (unlikely(c == (u)))				\
+			break;					\
+		old = local_cmpxchg((l), c, c + (a));	\
+		if (likely(old == c))				\
+			break;					\
+		c = old;					\
+	}							\
+	c != (u);						\
+})
+#define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+
+#define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
+
+#define local_dec_return(l) local_sub_return(1,(l))
+
+#define local_inc_return(l) local_add_return(1,(l))
+
+#define local_sub_and_test(i,l) (local_sub_return((i), (l)) == 0)
+
+#define local_inc_and_test(l) (local_add_return(1, (l)) == 0)
+
+#define local_dec_and_test(l) (local_sub_return(1, (l)) == 0)
+
+/* Verify if faster than atomic ops */
+#define __local_inc(l)		((l)->a.counter++)
+#define __local_dec(l)		((l)->a.counter++)
+#define __local_add(i,l)	((l)->a.counter+=(i))
+#define __local_sub(i,l)	((l)->a.counter-=(i))
+
+#endif /* _ALPHA_LOCAL_H */
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
new file mode 100644
index 000000000..8623f995d
--- /dev/null
+++ b/arch/alpha/include/asm/machvec.h
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MACHVEC_H
+#define __ALPHA_MACHVEC_H 1
+
+#include <linux/types.h>
+
+/*
+ *	This file gets pulled in by asm/io.h from user space. We don't
+ *	want most of this escaping.
+ */
+ 
+#ifdef __KERNEL__
+
+/* The following structure vectors all of the I/O and IRQ manipulation
+   from the generic kernel to the hardware specific backend.  */
+
+struct task_struct;
+struct mm_struct;
+struct vm_area_struct;
+struct linux_hose_info;
+struct pci_dev;
+struct pci_ops;
+struct pci_controller;
+struct _alpha_agp_info;
+struct rtc_time;
+
+struct alpha_machine_vector
+{
+	/* This "belongs" down below with the rest of the runtime
+	   variables, but it is convenient for entry.S if these 
+	   two slots are at the beginning of the struct.  */
+	unsigned long hae_cache;
+	unsigned long *hae_register;
+
+	int nr_irqs;
+	int rtc_port;
+	int rtc_boot_cpu_only;
+	unsigned int max_asn;
+	unsigned long max_isa_dma_address;
+	unsigned long irq_probe_mask;
+	unsigned long iack_sc;
+	unsigned long min_io_address;
+	unsigned long min_mem_address;
+	unsigned long pci_dac_offset;
+
+	void (*mv_pci_tbi)(struct pci_controller *hose,
+			   dma_addr_t start, dma_addr_t end);
+
+	u8 (*mv_ioread8)(const void __iomem *);
+	u16 (*mv_ioread16)(const void __iomem *);
+	u32 (*mv_ioread32)(const void __iomem *);
+	u64 (*mv_ioread64)(const void __iomem *);
+
+	void (*mv_iowrite8)(u8, void __iomem *);
+	void (*mv_iowrite16)(u16, void __iomem *);
+	void (*mv_iowrite32)(u32, void __iomem *);
+	void (*mv_iowrite64)(u64, void __iomem *);
+
+	u8 (*mv_readb)(const volatile void __iomem *);
+	u16 (*mv_readw)(const volatile void __iomem *);
+	u32 (*mv_readl)(const volatile void __iomem *);
+	u64 (*mv_readq)(const volatile void __iomem *);
+
+	void (*mv_writeb)(u8, volatile void __iomem *);
+	void (*mv_writew)(u16, volatile void __iomem *);
+	void (*mv_writel)(u32, volatile void __iomem *);
+	void (*mv_writeq)(u64, volatile void __iomem *);
+
+	void __iomem *(*mv_ioportmap)(unsigned long);
+	void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
+	void (*mv_iounmap)(volatile void __iomem *);
+	int (*mv_is_ioaddr)(unsigned long);
+	int (*mv_is_mmio)(const volatile void __iomem *);
+
+	void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
+			     struct task_struct *);
+	void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
+
+	void (*mv_flush_tlb_current)(struct mm_struct *);
+	void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
+					  struct vm_area_struct *vma,
+					  unsigned long addr);
+
+	void (*update_irq_hw)(unsigned long, unsigned long, int);
+	void (*ack_irq)(unsigned long);
+	void (*device_interrupt)(unsigned long vector);
+	void (*machine_check)(unsigned long vector, unsigned long la);
+
+	void (*smp_callin)(void);
+	void (*init_arch)(void);
+	void (*init_irq)(void);
+	void (*init_rtc)(void);
+	void (*init_pci)(void);
+	void (*kill_arch)(int);
+
+	u8 (*pci_swizzle)(struct pci_dev *, u8 *);
+	int (*pci_map_irq)(const struct pci_dev *, u8, u8);
+	struct pci_ops *pci_ops;
+
+	struct _alpha_agp_info *(*agp_info)(void);
+
+	const char *vector_name;
+
+	/* System specific parameters.  */
+	union {
+	    struct {
+		unsigned long gru_int_req_bits;
+	    } cia;
+
+	    struct {
+		unsigned long gamma_bias;
+	    } t2;
+
+	    struct {
+		unsigned int route_tab;
+	    } sio;
+	} sys;
+};
+
+extern struct alpha_machine_vector alpha_mv;
+
+#ifdef CONFIG_ALPHA_GENERIC
+extern int alpha_using_srm;
+extern int alpha_using_qemu;
+#else
+# ifdef CONFIG_ALPHA_SRM
+#  define alpha_using_srm 1
+# else
+#  define alpha_using_srm 0
+# endif
+# ifdef CONFIG_ALPHA_QEMU
+#  define alpha_using_qemu 1
+# else
+#  define alpha_using_qemu 0
+# endif
+#endif /* GENERIC */
+
+#endif /* __KERNEL__ */
+#endif /* __ALPHA_MACHVEC_H */
diff --git a/arch/alpha/include/asm/mc146818rtc.h b/arch/alpha/include/asm/mc146818rtc.h
new file mode 100644
index 000000000..2154fd4f7
--- /dev/null
+++ b/arch/alpha/include/asm/mc146818rtc.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef __ASM_ALPHA_MC146818RTC_H
+#define __ASM_ALPHA_MC146818RTC_H
+
+#include <asm/io.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x)	(0x70 + (x))
+#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
+#endif
+
+/*
+ * The yet supported machines all access the RTC index register via
+ * an ISA port access but the way to access the date register differs ...
+ */
+#define CMOS_READ(addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+inb_p(RTC_PORT(1)); \
+})
+#define CMOS_WRITE(val, addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+outb_p((val),RTC_PORT(1)); \
+})
+
+#endif /* __ASM_ALPHA_MC146818RTC_H */
diff --git a/arch/alpha/include/asm/mce.h b/arch/alpha/include/asm/mce.h
new file mode 100644
index 000000000..200e04e98
--- /dev/null
+++ b/arch/alpha/include/asm/mce.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCE_H
+#define __ALPHA_MCE_H
+
+/*
+ * This is the logout header that should be common to all platforms
+ * (assuming they are running OSF/1 PALcode, I guess).
+ */
+struct el_common {
+	unsigned int	size;		/* size in bytes of logout area */
+	unsigned int	sbz1	: 30;	/* should be zero */
+	unsigned int	err2	:  1;	/* second error */
+	unsigned int	retry	:  1;	/* retry flag */
+	unsigned int	proc_offset;	/* processor-specific offset */
+	unsigned int	sys_offset;	/* system-specific offset */
+	unsigned int	code;		/* machine check code */
+	unsigned int	frame_rev;	/* frame revision */
+};
+
+/* Machine Check Frame for uncorrectable errors (Large format)
+ *      --- This is used to log uncorrectable errors such as
+ *          double bit ECC errors.
+ *      --- These errors are detected by both processor and systems.
+ */
+struct el_common_EV5_uncorrectable_mcheck {
+        unsigned long   shadow[8];        /* Shadow reg. 8-14, 25           */
+        unsigned long   paltemp[24];      /* PAL TEMP REGS.                 */
+        unsigned long   exc_addr;         /* Address of excepting instruction*/
+        unsigned long   exc_sum;          /* Summary of arithmetic traps.   */
+        unsigned long   exc_mask;         /* Exception mask (from exc_sum). */
+        unsigned long   pal_base;         /* Base address for PALcode.      */
+        unsigned long   isr;              /* Interrupt Status Reg.          */
+        unsigned long   icsr;             /* CURRENT SETUP OF EV5 IBOX      */
+        unsigned long   ic_perr_stat;     /* I-CACHE Reg. <11> set Data parity
+                                                         <12> set TAG parity*/
+        unsigned long   dc_perr_stat;     /* D-CACHE error Reg. Bits set to 1:
+                                                     <2> Data error in bank 0
+                                                     <3> Data error in bank 1
+                                                     <4> Tag error in bank 0
+                                                     <5> Tag error in bank 1 */
+        unsigned long   va;               /* Effective VA of fault or miss. */
+        unsigned long   mm_stat;          /* Holds the reason for D-stream 
+                                             fault or D-cache parity errors */
+        unsigned long   sc_addr;          /* Address that was being accessed
+                                             when EV5 detected Secondary cache
+                                             failure.                 */
+        unsigned long   sc_stat;          /* Helps determine if the error was
+                                             TAG/Data parity(Secondary Cache)*/
+        unsigned long   bc_tag_addr;      /* Contents of EV5 BC_TAG_ADDR    */
+        unsigned long   ei_addr;          /* Physical address of any transfer
+                                             that is logged in EV5 EI_STAT */
+        unsigned long   fill_syndrome;    /* For correcting ECC errors.     */
+        unsigned long   ei_stat;          /* Helps identify reason of any 
+                                             processor uncorrectable error
+                                             at its external interface.     */
+        unsigned long   ld_lock;          /* Contents of EV5 LD_LOCK register*/
+};
+
+struct el_common_EV6_mcheck {
+	unsigned int FrameSize;		/* Bytes, including this field */
+	unsigned int FrameFlags;	/* <31> = Retry, <30> = Second Error */
+	unsigned int CpuOffset;		/* Offset to CPU-specific info */
+	unsigned int SystemOffset;	/* Offset to system-specific info */
+	unsigned int MCHK_Code;
+	unsigned int MCHK_Frame_Rev;
+	unsigned long I_STAT;		/* EV6 Internal Processor Registers */
+	unsigned long DC_STAT;		/* (See the 21264 Spec) */
+	unsigned long C_ADDR;
+	unsigned long DC1_SYNDROME;
+	unsigned long DC0_SYNDROME;
+	unsigned long C_STAT;
+	unsigned long C_STS;
+	unsigned long MM_STAT;
+	unsigned long EXC_ADDR;
+	unsigned long IER_CM;
+	unsigned long ISUM;
+	unsigned long RESERVED0;
+	unsigned long PAL_BASE;
+	unsigned long I_CTL;
+	unsigned long PCTX;
+};
+
+
+#endif /* __ALPHA_MCE_H */
diff --git a/arch/alpha/include/asm/mmu.h b/arch/alpha/include/asm/mmu.h
new file mode 100644
index 000000000..dadfc1b6e
--- /dev/null
+++ b/arch/alpha/include/asm/mmu.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_H
+#define __ALPHA_MMU_H
+
+/* The alpha MMU context is one "unsigned long" bitmap per CPU */
+typedef unsigned long mm_context_t[NR_CPUS];
+
+#endif
diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
new file mode 100644
index 000000000..4eea7c616
--- /dev/null
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -0,0 +1,259 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_CONTEXT_H
+#define __ALPHA_MMU_CONTEXT_H
+
+/*
+ * get a new mmu context..
+ *
+ * Copyright (C) 1996, Linus Torvalds
+ */
+
+#include <linux/mm_types.h>
+#include <linux/sched.h>
+
+#include <asm/machvec.h>
+#include <asm/compiler.h>
+#include <asm-generic/mm_hooks.h>
+
+/*
+ * Force a context reload. This is needed when we change the page
+ * table pointer or when we update the ASN of the current process.
+ */
+
+/* Don't get into trouble with dueling __EXTERN_INLINEs.  */
+#ifndef __EXTERN_INLINE
+#include <asm/io.h>
+#endif
+
+
+static inline unsigned long
+__reload_thread(struct pcb_struct *pcb)
+{
+	register unsigned long a0 __asm__("$16");
+	register unsigned long v0 __asm__("$0");
+
+	a0 = virt_to_phys(pcb);
+	__asm__ __volatile__(
+		"call_pal %2 #__reload_thread"
+		: "=r"(v0), "=r"(a0)
+		: "i"(PAL_swpctx), "r"(a0)
+		: "$1", "$22", "$23", "$24", "$25");
+
+	return v0;
+}
+
+
+/*
+ * The maximum ASN's the processor supports.  On the EV4 this is 63
+ * but the PAL-code doesn't actually use this information.  On the
+ * EV5 this is 127, and EV6 has 255.
+ *
+ * On the EV4, the ASNs are more-or-less useless anyway, as they are
+ * only used as an icache tag, not for TB entries.  On the EV5 and EV6,
+ * ASN's also validate the TB entries, and thus make a lot more sense.
+ *
+ * The EV4 ASN's don't even match the architecture manual, ugh.  And
+ * I quote: "If a processor implements address space numbers (ASNs),
+ * and the old PTE has the Address Space Match (ASM) bit clear (ASNs
+ * in use) and the Valid bit set, then entries can also effectively be
+ * made coherent by assigning a new, unused ASN to the currently
+ * running process and not reusing the previous ASN before calling the
+ * appropriate PALcode routine to invalidate the translation buffer (TB)". 
+ *
+ * In short, the EV4 has a "kind of" ASN capability, but it doesn't actually
+ * work correctly and can thus not be used (explaining the lack of PAL-code
+ * support).
+ */
+#define EV4_MAX_ASN 63
+#define EV5_MAX_ASN 127
+#define EV6_MAX_ASN 255
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ASN	(alpha_mv.max_asn)
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define MAX_ASN	EV4_MAX_ASN
+# elif defined(CONFIG_ALPHA_EV5)
+#  define MAX_ASN	EV5_MAX_ASN
+# else
+#  define MAX_ASN	EV6_MAX_ASN
+# endif
+#endif
+
+/*
+ * cpu_last_asn(processor):
+ * 63                                            0
+ * +-------------+----------------+--------------+
+ * | asn version | this processor | hardware asn |
+ * +-------------+----------------+--------------+
+ */
+
+#include <asm/smp.h>
+#ifdef CONFIG_SMP
+#define cpu_last_asn(cpuid)	(cpu_data[cpuid].last_asn)
+#else
+extern unsigned long last_asn;
+#define cpu_last_asn(cpuid)	last_asn
+#endif /* CONFIG_SMP */
+
+#define WIDTH_HARDWARE_ASN	8
+#define ASN_FIRST_VERSION (1UL << WIDTH_HARDWARE_ASN)
+#define HARDWARE_ASN_MASK ((1UL << WIDTH_HARDWARE_ASN) - 1)
+
+/*
+ * NOTE! The way this is set up, the high bits of the "asn_cache" (and
+ * the "mm->context") are the ASN _version_ code. A version of 0 is
+ * always considered invalid, so to invalidate another process you only
+ * need to do "p->mm->context = 0".
+ *
+ * If we need more ASN's than the processor has, we invalidate the old
+ * user TLB's (tbiap()) and start a new ASN version. That will automatically
+ * force a new asn for any other processes the next time they want to
+ * run.
+ */
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern inline unsigned long
+__get_new_mm_context(struct mm_struct *mm, long cpu)
+{
+	unsigned long asn = cpu_last_asn(cpu);
+	unsigned long next = asn + 1;
+
+	if ((asn & HARDWARE_ASN_MASK) >= MAX_ASN) {
+		tbiap();
+		imb();
+		next = (asn & ~HARDWARE_ASN_MASK) + ASN_FIRST_VERSION;
+	}
+	cpu_last_asn(cpu) = next;
+	return next;
+}
+
+__EXTERN_INLINE void
+ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+	      struct task_struct *next)
+{
+	/* Check if our ASN is of an older version, and thus invalid. */
+	unsigned long asn;
+	unsigned long mmc;
+	long cpu = smp_processor_id();
+
+#ifdef CONFIG_SMP
+	cpu_data[cpu].asn_lock = 1;
+	barrier();
+#endif
+	asn = cpu_last_asn(cpu);
+	mmc = next_mm->context[cpu];
+	if ((mmc ^ asn) & ~HARDWARE_ASN_MASK) {
+		mmc = __get_new_mm_context(next_mm, cpu);
+		next_mm->context[cpu] = mmc;
+	}
+#ifdef CONFIG_SMP
+	else
+		cpu_data[cpu].need_new_asn = 1;
+#endif
+
+	/* Always update the PCB ASN.  Another thread may have allocated
+	   a new mm->context (via flush_tlb_mm) without the ASN serial
+	   number wrapping.  We have no way to detect when this is needed.  */
+	task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK;
+}
+
+__EXTERN_INLINE void
+ev4_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+	      struct task_struct *next)
+{
+	/* As described, ASN's are broken for TLB usage.  But we can
+	   optimize for switching between threads -- if the mm is
+	   unchanged from current we needn't flush.  */
+	/* ??? May not be needed because EV4 PALcode recognizes that
+	   ASN's are broken and does a tbiap itself on swpctx, under
+	   the "Must set ASN or flush" rule.  At least this is true
+	   for a 1992 SRM, reports Joseph Martin (jmartin@hlo.dec.com).
+	   I'm going to leave this here anyway, just to Be Sure.  -- r~  */
+	if (prev_mm != next_mm)
+		tbiap();
+
+	/* Do continue to allocate ASNs, because we can still use them
+	   to avoid flushing the icache.  */
+	ev5_switch_mm(prev_mm, next_mm, next);
+}
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+#ifdef CONFIG_SMP
+#define check_mmu_context()					\
+do {								\
+	int cpu = smp_processor_id();				\
+	cpu_data[cpu].asn_lock = 0;				\
+	barrier();						\
+	if (cpu_data[cpu].need_new_asn) {			\
+		struct mm_struct * mm = current->active_mm;	\
+		cpu_data[cpu].need_new_asn = 0;			\
+		if (!mm->context[cpu])			\
+			__load_new_mm_context(mm);		\
+	}							\
+} while(0)
+#else
+#define check_mmu_context()  do { } while(0)
+#endif
+
+__EXTERN_INLINE void
+ev5_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+	__load_new_mm_context(next_mm);
+}
+
+__EXTERN_INLINE void
+ev4_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+	__load_new_mm_context(next_mm);
+	tbiap();
+}
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define switch_mm(a,b,c)	alpha_mv.mv_switch_mm((a),(b),(c))
+# define activate_mm(x,y)	alpha_mv.mv_activate_mm((x),(y))
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define switch_mm(a,b,c)	ev4_switch_mm((a),(b),(c))
+#  define activate_mm(x,y)	ev4_activate_mm((x),(y))
+# else
+#  define switch_mm(a,b,c)	ev5_switch_mm((a),(b),(c))
+#  define activate_mm(x,y)	ev5_activate_mm((x),(y))
+# endif
+#endif
+
+#define init_new_context init_new_context
+static inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	int i;
+
+	for_each_online_cpu(i)
+		mm->context[i] = 0;
+	if (tsk != current)
+		task_thread_info(tsk)->pcb.ptbr
+		  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+	return 0;
+}
+
+#define enter_lazy_tlb enter_lazy_tlb
+static inline void
+enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+	task_thread_info(tsk)->pcb.ptbr
+	  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+}
+
+#include <asm-generic/mmu_context.h>
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+#endif /* __ALPHA_MMU_CONTEXT_H */
diff --git a/arch/alpha/include/asm/module.h b/arch/alpha/include/asm/module.h
new file mode 100644
index 000000000..1e96e42f5
--- /dev/null
+++ b/arch/alpha/include/asm/module.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_MODULE_H
+#define _ALPHA_MODULE_H
+
+#include <asm-generic/module.h>
+
+struct mod_arch_specific
+{
+	unsigned int gotsecindex;
+};
+
+#define ARCH_SHF_SMALL SHF_ALPHA_GPREL
+
+#ifdef MODULE
+asm(".section .got,\"aws\",@progbits; .align 3; .previous");
+#endif
+
+#endif /*_ALPHA_MODULE_H*/
diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h
new file mode 100644
index 000000000..8f3f5eecb
--- /dev/null
+++ b/arch/alpha/include/asm/page.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PAGE_H
+#define _ALPHA_PAGE_H
+
+#include <linux/const.h>
+#include <asm/pal.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT	13
+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK	(~(PAGE_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
+#define STRICT_MM_TYPECHECKS
+
+extern void clear_page(void *page);
+#define clear_user_page(page, vaddr, pg)	clear_page(page)
+
+#define alloc_zeroed_user_highpage_movable(vma, vaddr) \
+	alloc_page_vma(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE
+
+extern void copy_page(void * _to, void * _from);
+#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
+
+#ifdef STRICT_MM_TYPECHECKS
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x)	((x).pte)
+#define pmd_val(x)	((x).pmd)
+#define pgd_val(x)	((x).pgd)
+#define pgprot_val(x)	((x).pgprot)
+
+#define __pte(x)	((pte_t) { (x) } )
+#define __pmd(x)	((pmd_t) { (x) } )
+#define __pgd(x)	((pgd_t) { (x) } )
+#define __pgprot(x)	((pgprot_t) { (x) } )
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x)	(x)
+#define pmd_val(x)	(x)
+#define pgd_val(x)	(x)
+#define pgprot_val(x)	(x)
+
+#define __pte(x)	(x)
+#define __pgd(x)	(x)
+#define __pgprot(x)	(x)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+typedef struct page *pgtable_t;
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET		0xffff800000000000UL
+#else
+#define PAGE_OFFSET		0xfffffc0000000000UL
+#endif
+
+#else
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET		0xffff800000000000
+#else
+#define PAGE_OFFSET		0xfffffc0000000000
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#define __pa(x)			((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x)			((void *)((unsigned long) (x) + PAGE_OFFSET))
+
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_addr_valid(kaddr)	pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
+
+#ifdef CONFIG_FLATMEM
+#define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_FLATMEM */
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/getorder.h>
+
+#endif /* _ALPHA_PAGE_H */
diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h
new file mode 100644
index 000000000..db2b3b18b
--- /dev/null
+++ b/arch/alpha/include/asm/pal.h
@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PAL_H
+#define __ALPHA_PAL_H
+
+#include <uapi/asm/pal.h>
+
+#ifndef __ASSEMBLY__
+
+extern void halt(void) __attribute__((noreturn));
+#define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt))
+
+#define imb() \
+__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
+
+#define draina() \
+__asm__ __volatile__ ("call_pal %0 #draina" : : "i" (PAL_draina) : "memory")
+
+#define __CALL_PAL_R0(NAME, TYPE)				\
+extern inline TYPE NAME(void)					\
+{								\
+	register TYPE __r0 __asm__("$0");			\
+	__asm__ __volatile__(					\
+		"call_pal %1 # " #NAME				\
+		:"=r" (__r0)					\
+		:"i" (PAL_ ## NAME)				\
+		:"$1", "$16", "$22", "$23", "$24", "$25");	\
+	return __r0;						\
+}
+
+#define __CALL_PAL_W1(NAME, TYPE0)				\
+extern inline void NAME(TYPE0 arg0)				\
+{								\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	__asm__ __volatile__(					\
+		"call_pal %1 # "#NAME				\
+		: "=r"(__r16)					\
+		: "i"(PAL_ ## NAME), "0"(__r16)			\
+		: "$1", "$22", "$23", "$24", "$25");		\
+}
+
+#define __CALL_PAL_W2(NAME, TYPE0, TYPE1)			\
+extern inline void NAME(TYPE0 arg0, TYPE1 arg1)			\
+{								\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	register TYPE1 __r17 __asm__("$17") = arg1;		\
+	__asm__ __volatile__(					\
+		"call_pal %2 # "#NAME				\
+		: "=r"(__r16), "=r"(__r17)			\
+		: "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17)	\
+		: "$1", "$22", "$23", "$24", "$25");		\
+}
+
+#define __CALL_PAL_RW1(NAME, RTYPE, TYPE0)			\
+extern inline RTYPE NAME(TYPE0 arg0)				\
+{								\
+	register RTYPE __r0 __asm__("$0");			\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	__asm__ __volatile__(					\
+		"call_pal %2 # "#NAME				\
+		: "=r"(__r16), "=r"(__r0)			\
+		: "i"(PAL_ ## NAME), "0"(__r16)			\
+		: "$1", "$22", "$23", "$24", "$25");		\
+	return __r0;						\
+}
+
+#define __CALL_PAL_RW2(NAME, RTYPE, TYPE0, TYPE1)		\
+extern inline RTYPE NAME(TYPE0 arg0, TYPE1 arg1)		\
+{								\
+	register RTYPE __r0 __asm__("$0");			\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	register TYPE1 __r17 __asm__("$17") = arg1;		\
+	__asm__ __volatile__(					\
+		"call_pal %3 # "#NAME				\
+		: "=r"(__r16), "=r"(__r17), "=r"(__r0)		\
+		: "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17)	\
+		: "$1", "$22", "$23", "$24", "$25");		\
+	return __r0;						\
+}
+
+__CALL_PAL_W1(cflush, unsigned long);
+__CALL_PAL_R0(rdmces, unsigned long);
+__CALL_PAL_R0(rdps, unsigned long);
+__CALL_PAL_R0(rdusp, unsigned long);
+__CALL_PAL_RW1(swpipl, unsigned long, unsigned long);
+__CALL_PAL_R0(whami, unsigned long);
+__CALL_PAL_W2(wrent, void*, unsigned long);
+__CALL_PAL_W1(wripir, unsigned long);
+__CALL_PAL_W1(wrkgp, unsigned long);
+__CALL_PAL_W1(wrmces, unsigned long);
+__CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long);
+__CALL_PAL_W1(wrusp, unsigned long);
+__CALL_PAL_W1(wrvptptr, unsigned long);
+__CALL_PAL_RW1(wtint, unsigned long, unsigned long);
+
+/*
+ * TB routines..
+ */
+#define __tbi(nr,arg,arg1...)					\
+({								\
+	register unsigned long __r16 __asm__("$16") = (nr);	\
+	register unsigned long __r17 __asm__("$17"); arg;	\
+	__asm__ __volatile__(					\
+		"call_pal %3 #__tbi"				\
+		:"=r" (__r16),"=r" (__r17)			\
+		:"0" (__r16),"i" (PAL_tbi) ,##arg1		\
+		:"$0", "$1", "$22", "$23", "$24", "$25");	\
+})
+
+#define tbi(x,y)	__tbi(x,__r17=(y),"1" (__r17))
+#define tbisi(x)	__tbi(1,__r17=(x),"1" (__r17))
+#define tbisd(x)	__tbi(2,__r17=(x),"1" (__r17))
+#define tbis(x)		__tbi(3,__r17=(x),"1" (__r17))
+#define tbiap()		__tbi(-1, /* no second argument */)
+#define tbia()		__tbi(-2, /* no second argument */)
+
+/*
+ * QEMU Cserv routines..
+ */
+
+static inline unsigned long
+qemu_get_walltime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 3;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline unsigned long
+qemu_get_alarm(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 4;
+
+	asm("call_pal %2 # cserve get_alarm"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline void
+qemu_set_alarm_rel(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 5;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_rel"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline void
+qemu_set_alarm_abs(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 6;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_abs"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline unsigned long
+qemu_get_vmtime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 7;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+#endif /* !__ASSEMBLY__ */
+#endif /* __ALPHA_PAL_H */
diff --git a/arch/alpha/include/asm/param.h b/arch/alpha/include/asm/param.h
new file mode 100644
index 000000000..cfe947ce9
--- /dev/null
+++ b/arch/alpha/include/asm/param.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_PARAM_H
+#define _ASM_ALPHA_PARAM_H
+
+#include <uapi/asm/param.h>
+
+# undef HZ
+# define HZ		CONFIG_HZ
+# define USER_HZ	1024
+# define CLOCKS_PER_SEC	USER_HZ	/* frequency at which times() counts */
+
+#endif /* _ASM_ALPHA_PARAM_H */
diff --git a/arch/alpha/include/asm/parport.h b/arch/alpha/include/asm/parport.h
new file mode 100644
index 000000000..0519a51e6
--- /dev/null
+++ b/arch/alpha/include/asm/parport.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * parport.h: platform-specific PC-style parport initialisation
+ *
+ * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
+ *
+ * This file should only be included by drivers/parport/parport_pc.c.
+ */
+
+#ifndef _ASM_AXP_PARPORT_H
+#define _ASM_AXP_PARPORT_H 1
+
+static int parport_pc_find_isa_ports (int autoirq, int autodma);
+static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
+{
+	return parport_pc_find_isa_ports (autoirq, autodma);
+}
+
+#endif /* !(_ASM_AXP_PARPORT_H) */
diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
new file mode 100644
index 000000000..631265627
--- /dev/null
+++ b/arch/alpha/include/asm/pci.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PCI_H
+#define __ALPHA_PCI_H
+
+#ifdef __KERNEL__
+
+#include <linux/spinlock.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <asm/machvec.h>
+
+/*
+ * The following structure is used to manage multiple PCI busses.
+ */
+
+struct pci_iommu_arena;
+struct page;
+
+/* A controller.  Used to manage multiple PCI busses.  */
+
+struct pci_controller {
+	struct pci_controller *next;
+        struct pci_bus *bus;
+	struct resource *io_space;
+	struct resource *mem_space;
+
+	/* The following are for reporting to userland.  The invariant is
+	   that if we report a BWX-capable dense memory, we do not report
+	   a sparse memory at all, even if it exists.  */
+	unsigned long sparse_mem_base;
+	unsigned long dense_mem_base;
+	unsigned long sparse_io_base;
+	unsigned long dense_io_base;
+
+	/* This one's for the kernel only.  It's in KSEG somewhere.  */
+	unsigned long config_space_base;
+
+	unsigned int index;
+	/* For compatibility with current (as of July 2003) pciutils
+	   and XFree86. Eventually will be removed. */
+	unsigned int need_domain_info;
+
+	struct pci_iommu_arena *sg_pci;
+	struct pci_iommu_arena *sg_isa;
+
+	void *sysdata;
+};
+
+/* Override the logic in pci_scan_bus for skipping already-configured
+   bus numbers.  */
+
+#define pcibios_assign_all_busses()	1
+
+#define PCIBIOS_MIN_IO		alpha_mv.min_io_address
+#define PCIBIOS_MIN_MEM		alpha_mv.min_mem_address
+
+/* IOMMU controls.  */
+
+#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+	return hose->need_domain_info;
+}
+
+#endif /* __KERNEL__ */
+
+/* Values for the `which' argument to sys_pciconfig_iobase.  */
+#define IOBASE_HOSE		0
+#define IOBASE_SPARSE_MEM	1
+#define IOBASE_DENSE_MEM	2
+#define IOBASE_SPARSE_IO	3
+#define IOBASE_DENSE_IO		4
+#define IOBASE_ROOT_BUS		5
+#define IOBASE_FROM_HOSE	0x10000
+
+extern struct pci_dev *isa_bridge;
+
+extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
+			   size_t count);
+extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
+			    size_t count);
+extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
+				      struct vm_area_struct *vma,
+				      enum pci_mmap_state mmap_state);
+extern void pci_adjust_legacy_attr(struct pci_bus *bus,
+				   enum pci_mmap_state mmap_type);
+#define HAVE_PCI_LEGACY	1
+
+extern int pci_create_resource_files(struct pci_dev *dev);
+extern void pci_remove_resource_files(struct pci_dev *dev);
+
+#endif /* __ALPHA_PCI_H */
diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h
new file mode 100644
index 000000000..6923249f2
--- /dev/null
+++ b/arch/alpha/include/asm/percpu.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PERCPU_H
+#define __ALPHA_PERCPU_H
+
+/*
+ * To calculate addresses of locally defined variables, GCC uses
+ * 32-bit displacement from the GP. Which doesn't work for per cpu
+ * variables in modules, as an offset to the kernel per cpu area is
+ * way above 4G.
+ *
+ * Always use weak definitions for percpu variables in modules.
+ */
+#if defined(MODULE) && defined(CONFIG_SMP)
+#define ARCH_NEEDS_WEAK_PER_CPU
+#endif
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ALPHA_PERCPU_H */
diff --git a/arch/alpha/include/asm/perf_event.h b/arch/alpha/include/asm/perf_event.h
new file mode 100644
index 000000000..5996e7a67
--- /dev/null
+++ b/arch/alpha/include/asm/perf_event.h
@@ -0,0 +1,4 @@
+#ifndef __ASM_ALPHA_PERF_EVENT_H
+#define __ASM_ALPHA_PERF_EVENT_H
+
+#endif /* __ASM_ALPHA_PERF_EVENT_H */
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
new file mode 100644
index 000000000..68be7adbf
--- /dev/null
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGALLOC_H
+#define _ALPHA_PGALLOC_H
+
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+
+#include <asm-generic/pgalloc.h>
+
+/*      
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
+{
+	pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
+}
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+	pmd_set(pmd, pte);
+}
+
+static inline void
+pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_set(pud, pmd);
+}
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+
+#endif /* _ALPHA_PGALLOC_H */
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
new file mode 100644
index 000000000..3ea9661c0
--- /dev/null
+++ b/arch/alpha/include/asm/pgtable.h
@@ -0,0 +1,330 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGTABLE_H
+#define _ALPHA_PGTABLE_H
+
+#include <asm-generic/pgtable-nopud.h>
+
+/*
+ * This file contains the functions and defines necessary to modify and use
+ * the Alpha page table tree.
+ *
+ * This hopefully works with any standard Alpha page-size, as defined
+ * in <asm/page.h> (currently 8192).
+ */
+#include <linux/mmzone.h>
+
+#include <asm/page.h>
+#include <asm/processor.h>	/* For TASK_SIZE */
+#include <asm/machvec.h>
+#include <asm/setup.h>
+
+struct mm_struct;
+struct vm_area_struct;
+
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+/* PMD_SHIFT determines the size of the area a second-level page table can map */
+#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3))
+#define PMD_SIZE	(1UL << PMD_SHIFT)
+#define PMD_MASK	(~(PMD_SIZE-1))
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#define PGDIR_SHIFT	(PAGE_SHIFT + 2*(PAGE_SHIFT-3))
+#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE-1))
+
+/*
+ * Entries per page directory level:  the Alpha is three-level, with
+ * all levels having a one-page page table.
+ */
+#define PTRS_PER_PTE	(1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PMD	(1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PGD	(1UL << (PAGE_SHIFT-3))
+#define USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
+
+/* Number of pointers that fit on a page:  this will go away. */
+#define PTRS_PER_PAGE	(1UL << (PAGE_SHIFT-3))
+
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+#define VMALLOC_START		0xfffffe0000000000
+#else
+#define VMALLOC_START		(-2*PGDIR_SIZE)
+#endif
+#define VMALLOC_END		(-PGDIR_SIZE)
+
+/*
+ * OSF/1 PAL-code-imposed page table bits
+ */
+#define _PAGE_VALID	0x0001
+#define _PAGE_FOR	0x0002	/* used for page protection (fault on read) */
+#define _PAGE_FOW	0x0004	/* used for page protection (fault on write) */
+#define _PAGE_FOE	0x0008	/* used for page protection (fault on exec) */
+#define _PAGE_ASM	0x0010
+#define _PAGE_KRE	0x0100	/* xxx - see below on the "accessed" bit */
+#define _PAGE_URE	0x0200	/* xxx */
+#define _PAGE_KWE	0x1000	/* used to do the dirty bit in software */
+#define _PAGE_UWE	0x2000	/* used to do the dirty bit in software */
+
+/* .. and these are ours ... */
+#define _PAGE_DIRTY	0x20000
+#define _PAGE_ACCESSED	0x40000
+
+/*
+ * NOTE! The "accessed" bit isn't necessarily exact:  it can be kept exactly
+ * by software (use the KRE/URE/KWE/UWE bits appropriately), but I'll fake it.
+ * Under Linux/AXP, the "accessed" bit just means "read", and I'll just use
+ * the KRE/URE bits to watch for it. That way we don't need to overload the
+ * KWE/UWE bits with both handling dirty and accessed.
+ *
+ * Note that the kernel uses the accessed bit just to check whether to page
+ * out a page or not, so it doesn't have to be exact anyway.
+ */
+
+#define __DIRTY_BITS	(_PAGE_DIRTY | _PAGE_KWE | _PAGE_UWE)
+#define __ACCESS_BITS	(_PAGE_ACCESSED | _PAGE_KRE | _PAGE_URE)
+
+#define _PFN_MASK	0xFFFFFFFF00000000UL
+
+#define _PAGE_TABLE	(_PAGE_VALID | __DIRTY_BITS | __ACCESS_BITS)
+#define _PAGE_CHG_MASK	(_PFN_MASK | __DIRTY_BITS | __ACCESS_BITS)
+
+/*
+ * All the normal masks have the "page accessed" bits on, as any time they are used,
+ * the page is accessed. They are cleared only by the page-out routines
+ */
+#define PAGE_NONE	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOR | _PAGE_FOW | _PAGE_FOE)
+#define PAGE_SHARED	__pgprot(_PAGE_VALID | __ACCESS_BITS)
+#define PAGE_COPY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_READONLY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_KERNEL	__pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
+
+#define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
+
+#define _PAGE_P(x) _PAGE_NORMAL((x) | (((x) & _PAGE_FOW)?0:_PAGE_FOW))
+#define _PAGE_S(x) _PAGE_NORMAL(x)
+
+/*
+ * The hardware can handle write-only mappings, but as the Alpha
+ * architecture does byte-wide writes with a read-modify-write
+ * sequence, it's not practical to have write-without-read privs.
+ * Thus the "-w- -> rw-" and "-wx -> rwx" mapping here (and in
+ * arch/alpha/mm/fault.c)
+ */
+	/* xwr */
+
+/*
+ * pgprot_noncached() is only for infiniband pci support, and a real
+ * implementation for RAM would be more complicated.
+ */
+#define pgprot_noncached(prot)	(prot)
+
+/*
+ * BAD_PAGETABLE is used when we need a bogus page-table, while
+ * BAD_PAGE is used for a bogus page.
+ *
+ * ZERO_PAGE is a global shared page that is always zero:  used
+ * for zero-mapped memory areas etc..
+ */
+extern pte_t __bad_page(void);
+extern pmd_t * __bad_pagetable(void);
+
+extern unsigned long __zero_page(void);
+
+#define BAD_PAGETABLE	__bad_pagetable()
+#define BAD_PAGE	__bad_page()
+#define ZERO_PAGE(vaddr)	(virt_to_page(ZERO_PGE))
+
+/* number of bits that fit into a memory pointer */
+#define BITS_PER_PTR			(8*sizeof(unsigned long))
+
+/* to align the pointer to a pointer address */
+#define PTR_MASK			(~(sizeof(void*)-1))
+
+/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
+#define SIZEOF_PTR_LOG2			3
+
+/* to find an entry in a page-table */
+#define PAGE_PTR(address)		\
+  ((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
+
+/*
+ * On certain platforms whose physical address space can overlap KSEG,
+ * namely EV6 and above, we must re-twiddle the physaddr to restore the
+ * correct high-order bits.
+ *
+ * This is extremely confusing until you realize that this is actually
+ * just working around a userspace bug.  The X server was intending to
+ * provide the physical address but instead provided the KSEG address.
+ * Or tried to, except it's not representable.
+ * 
+ * On Tsunami there's nothing meaningful at 0x40000000000, so this is
+ * a safe thing to do.  Come the first core logic that does put something
+ * in this area -- memory or whathaveyou -- then this hack will have
+ * to go away.  So be prepared!
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) && defined(USE_48_BIT_KSEG)
+#error "EV6-only feature in a generic kernel"
+#endif
+#if defined(CONFIG_ALPHA_GENERIC) || \
+    (defined(CONFIG_ALPHA_EV6) && !defined(USE_48_BIT_KSEG))
+#define KSEG_PFN	(0xc0000000000UL >> PAGE_SHIFT)
+#define PHYS_TWIDDLE(pfn) \
+  ((((pfn) & KSEG_PFN) == (0x40000000000UL >> PAGE_SHIFT)) \
+  ? ((pfn) ^= KSEG_PFN) : (pfn))
+#else
+#define PHYS_TWIDDLE(pfn) (pfn)
+#endif
+
+/*
+ * Conversion functions:  convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+#define page_to_pa(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define pte_pfn(pte)	(pte_val(pte) >> 32)
+
+#define pte_page(pte)	pfn_to_page(pte_pfn(pte))
+#define mk_pte(page, pgprot)						\
+({									\
+	pte_t pte;							\
+									\
+	pte_val(pte) = (page_to_pfn(page) << 32) | pgprot_val(pgprot);	\
+	pte;								\
+})
+
+extern inline pte_t pfn_pte(unsigned long physpfn, pgprot_t pgprot)
+{ pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpfn) << 32) | pgprot_val(pgprot); return pte; }
+
+extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{ pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
+
+extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
+{ pmd_val(*pmdp) = _PAGE_TABLE | ((((unsigned long) ptep) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+extern inline void pud_set(pud_t * pudp, pmd_t * pmdp)
+{ pud_val(*pudp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+
+extern inline unsigned long
+pmd_page_vaddr(pmd_t pmd)
+{
+	return ((pmd_val(pmd) & _PFN_MASK) >> (32-PAGE_SHIFT)) + PAGE_OFFSET;
+}
+
+#define pmd_pfn(pmd)	(pmd_val(pmd) >> 32)
+#define pmd_page(pmd)	(pfn_to_page(pmd_val(pmd) >> 32))
+#define pud_page(pud)	(pfn_to_page(pud_val(pud) >> 32))
+
+extern inline pmd_t *pud_pgtable(pud_t pgd)
+{
+	return (pmd_t *)(PAGE_OFFSET + ((pud_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT)));
+}
+
+extern inline int pte_none(pte_t pte)		{ return !pte_val(pte); }
+extern inline int pte_present(pte_t pte)	{ return pte_val(pte) & _PAGE_VALID; }
+extern inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+	pte_val(*ptep) = 0;
+}
+
+extern inline int pmd_none(pmd_t pmd)		{ return !pmd_val(pmd); }
+extern inline int pmd_bad(pmd_t pmd)		{ return (pmd_val(pmd) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pmd_present(pmd_t pmd)	{ return pmd_val(pmd) & _PAGE_VALID; }
+extern inline void pmd_clear(pmd_t * pmdp)	{ pmd_val(*pmdp) = 0; }
+
+extern inline int pud_none(pud_t pud)		{ return !pud_val(pud); }
+extern inline int pud_bad(pud_t pud)		{ return (pud_val(pud) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pud_present(pud_t pud)	{ return pud_val(pud) & _PAGE_VALID; }
+extern inline void pud_clear(pud_t * pudp)	{ pud_val(*pudp) = 0; }
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+extern inline int pte_write(pte_t pte)		{ return !(pte_val(pte) & _PAGE_FOW); }
+extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+
+extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) |= _PAGE_FOW; return pte; }
+extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~(__DIRTY_BITS); return pte; }
+extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~(__ACCESS_BITS); return pte; }
+extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) &= ~_PAGE_FOW; return pte; }
+extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= __DIRTY_BITS; return pte; }
+extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= __ACCESS_BITS; return pte; }
+
+/*
+ * The smp_rmb() in the following functions are required to order the load of
+ * *dir (the pointer in the top level page table) with any subsequent load of
+ * the returned pmd_t *ret (ret is data dependent on *dir).
+ *
+ * If this ordering is not enforced, the CPU might load an older value of
+ * *ret, which may be uninitialized data. See mm/memory.c:__pte_alloc for
+ * more details.
+ *
+ * Note that we never change the mm->pgd pointer after the task is running, so
+ * pgd_offset does not require such a barrier.
+ */
+
+/* Find an entry in the second-level page table.. */
+extern inline pmd_t * pmd_offset(pud_t * dir, unsigned long address)
+{
+	pmd_t *ret = pud_pgtable(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1));
+	smp_rmb(); /* see above */
+	return ret;
+}
+#define pmd_offset pmd_offset
+
+/* Find an entry in the third-level page table.. */
+extern inline pte_t * pte_offset_kernel(pmd_t * dir, unsigned long address)
+{
+	pte_t *ret = (pte_t *) pmd_page_vaddr(*dir)
+		+ ((address >> PAGE_SHIFT) & (PTRS_PER_PAGE - 1));
+	smp_rmb(); /* see above */
+	return ret;
+}
+#define pte_offset_kernel pte_offset_kernel
+
+extern pgd_t swapper_pg_dir[1024];
+
+/*
+ * The Alpha doesn't have any external MMU info:  the kernel page
+ * tables contain all the necessary information.
+ */
+extern inline void update_mmu_cache(struct vm_area_struct * vma,
+	unsigned long address, pte_t *ptep)
+{
+}
+
+/*
+ * Non-present pages:  high 24 bits are offset, next 8 bits type,
+ * low 32 bits zero.
+ */
+extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
+{ pte_t pte; pte_val(pte) = (type << 32) | (offset << 40); return pte; }
+
+#define __swp_type(x)		(((x).val >> 32) & 0xff)
+#define __swp_offset(x)		((x).val >> 40)
+#define __swp_entry(type, off)	((swp_entry_t) { pte_val(mk_swap_pte((type), (off))) })
+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
+
+#define kern_addr_valid(addr)	(1)
+
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pmd_ERROR(e) \
+	printk("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+extern void paging_init(void);
+
+/* We have our own get_unmapped_area to cope with ADDR_LIMIT_32BIT.  */
+#define HAVE_ARCH_UNMAPPED_AREA
+
+#endif /* _ALPHA_PGTABLE_H */
diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h
new file mode 100644
index 000000000..714abe494
--- /dev/null
+++ b/arch/alpha/include/asm/processor.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/processor.h
+ *
+ * Copyright (C) 1994 Linus Torvalds
+ */
+
+#ifndef __ASM_ALPHA_PROCESSOR_H
+#define __ASM_ALPHA_PROCESSOR_H
+
+#include <linux/personality.h>	/* for ADDR_LIMIT_32BIT */
+
+/*
+ * We have a 42-bit user address space: 4TB user VM...
+ */
+#define TASK_SIZE (0x40000000000UL)
+
+#define STACK_TOP \
+  (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
+
+#define STACK_TOP_MAX	0x00120000000UL
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE \
+  ((current->personality & ADDR_LIMIT_32BIT) ? 0x40000000 : TASK_SIZE / 2)
+
+/* This is dead.  Everything has been moved to thread_info.  */
+struct thread_struct { };
+#define INIT_THREAD  { }
+
+/* Do necessary setup to start up a newly executed thread.  */
+struct pt_regs;
+extern void start_thread(struct pt_regs *, unsigned long, unsigned long);
+
+/* Free all resources held by a thread. */
+struct task_struct;
+unsigned long __get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
+
+#define KSTK_ESP(tsk) \
+  ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
+
+#define cpu_relax()	barrier()
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+#define ARCH_HAS_SPINLOCK_PREFETCH
+
+#ifndef CONFIG_SMP
+/* Nothing to prefetch. */
+#define spin_lock_prefetch(lock)  	do { } while (0)
+#endif
+
+extern inline void prefetch(const void *ptr)  
+{ 
+	__builtin_prefetch(ptr, 0, 3);
+}
+
+extern inline void prefetchw(const void *ptr)  
+{
+	__builtin_prefetch(ptr, 1, 3);
+}
+
+#ifdef CONFIG_SMP
+extern inline void spin_lock_prefetch(const void *ptr)  
+{
+	__builtin_prefetch(ptr, 1, 3);
+}
+#endif
+
+#endif /* __ASM_ALPHA_PROCESSOR_H */
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h
new file mode 100644
index 000000000..df5f317ab
--- /dev/null
+++ b/arch/alpha/include/asm/ptrace.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_PTRACE_H
+#define _ASMAXP_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+#define arch_has_single_step()		(1)
+#define user_mode(regs) (((regs)->ps & 8) != 0)
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define current_user_stack_pointer() rdusp()
+
+#define task_pt_regs(task) \
+  ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
+
+#define current_pt_regs() \
+  ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
+#define signal_pt_regs current_pt_regs
+
+#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
+
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+	return regs->r0;
+}
+
+#endif
diff --git a/arch/alpha/include/asm/rwonce.h b/arch/alpha/include/asm/rwonce.h
new file mode 100644
index 000000000..35542bcf9
--- /dev/null
+++ b/arch/alpha/include/asm/rwonce.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 Google LLC.
+ */
+#ifndef __ASM_RWONCE_H
+#define __ASM_RWONCE_H
+
+#ifdef CONFIG_SMP
+
+#include <asm/barrier.h>
+
+/*
+ * Alpha is apparently daft enough to reorder address-dependent loads
+ * on some CPU implementations. Knock some common sense into it with
+ * a memory barrier in READ_ONCE().
+ *
+ * For the curious, more information about this unusual reordering is
+ * available in chapter 15 of the "perfbook":
+ *
+ *  https://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html
+ *
+ */
+#define __READ_ONCE(x)							\
+({									\
+	__unqual_scalar_typeof(x) __x =					\
+		(*(volatile typeof(__x) *)(&(x)));			\
+	mb();								\
+	(typeof(x))__x;							\
+})
+
+#endif /* CONFIG_SMP */
+
+#include <asm-generic/rwonce.h>
+
+#endif /* __ASM_RWONCE_H */
diff --git a/arch/alpha/include/asm/serial.h b/arch/alpha/include/asm/serial.h
new file mode 100644
index 000000000..911154473
--- /dev/null
+++ b/arch/alpha/include/asm/serial.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/serial.h
+ */
+
+
+/*
+ * This assumes you have a 1.8432 MHz clock for your UART.
+ *
+ * It'd be nice if someone built a serial card with a 24.576 MHz
+ * clock, since the 16550A is capable of handling a top speed of 1.5
+ * megabits/second; but this requires the faster clock.
+ */
+#define BASE_BAUD ( 1843200 / 16 )
+
+/* Standard COM flags (except for COM4, because of the 8514 problem) */
+#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
+#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
+#else
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
+#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
+#endif
+
+#define SERIAL_PORT_DFNS			\
+	/* UART CLK   PORT IRQ     FLAGS        */			\
+	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
+	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
+	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
+	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */
diff --git a/arch/alpha/include/asm/setup.h b/arch/alpha/include/asm/setup.h
new file mode 100644
index 000000000..262aab99e
--- /dev/null
+++ b/arch/alpha/include/asm/setup.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ALPHA_SETUP_H
+#define __ALPHA_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+/*
+ * We leave one page for the initial stack page, and one page for
+ * the initial process structure. Also, the console eats 3 MB for
+ * the initial bootloader (one of which we can reclaim later).
+ */
+#define BOOT_PCB	0x20000000
+#define BOOT_ADDR	0x20000000
+/* Remove when official MILO sources have ELF support: */
+#define BOOT_SIZE	(16*1024)
+
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+#define KERNEL_START_PHYS	0x300000 /* Old bootloaders hardcoded this.  */
+#else
+#define KERNEL_START_PHYS	0x1000000 /* required: Wildfire/Titan/Marvel */
+#endif
+
+#define KERNEL_START	(PAGE_OFFSET+KERNEL_START_PHYS)
+#define SWAPPER_PGD	KERNEL_START
+#define INIT_STACK	(PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
+#define EMPTY_PGT	(PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
+#define EMPTY_PGE	(PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
+#define ZERO_PGE	(PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
+
+#define START_ADDR	(PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
+
+/*
+ * This is setup by the secondary bootstrap loader.  Because
+ * the zero page is zeroed out as soon as the vm system is
+ * initialized, we need to copy things out into a more permanent
+ * place.
+ */
+#define PARAM			ZERO_PGE
+#define COMMAND_LINE		((char *)(absolute_pointer(PARAM + 0x0000)))
+#define INITRD_START		(*(unsigned long *) (PARAM+0x100))
+#define INITRD_SIZE		(*(unsigned long *) (PARAM+0x108))
+
+#endif
diff --git a/arch/alpha/include/asm/sfp-machine.h b/arch/alpha/include/asm/sfp-machine.h
new file mode 100644
index 000000000..5fe63afbd
--- /dev/null
+++ b/arch/alpha/include/asm/sfp-machine.h
@@ -0,0 +1,82 @@
+/* Machine-dependent software floating-point definitions.
+   Alpha kernel version.
+   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com),
+		  Jakub Jelinek (jakub@redhat.com) and
+		  David S. Miller (davem@redhat.com).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _SFP_MACHINE_H
+#define _SFP_MACHINE_H
+   
+#define _FP_W_TYPE_SIZE		64
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)					\
+  _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
+#define _FP_MUL_MEAT_D(R,X,Y)					\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)					\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		_FP_QNANBIT_S
+#define _FP_NANFRAC_D		_FP_QNANBIT_D
+#define _FP_NANFRAC_Q		_FP_QNANBIT_Q
+#define _FP_NANSIGN_S		1
+#define _FP_NANSIGN_D		1
+#define _FP_NANSIGN_Q		1
+
+#define _FP_KEEPNANFRACP 1
+
+/* Alpha Architecture Handbook, 4.7.10.4 sais that
+ * we should prefer any type of NaN in Fb, then Fa.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+  do {								\
+    R##_s = Y##_s;						\
+    _FP_FRAC_COPY_##wc(R,X);					\
+    R##_c = FP_CLS_NAN;						\
+  } while (0)
+
+/* Obtain the current rounding mode. */
+#define FP_ROUNDMODE	mode
+#define FP_RND_NEAREST	(FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT)
+#define FP_RND_ZERO	(FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT)
+#define FP_RND_PINF	(FPCR_DYN_PLUS >> FPCR_DYN_SHIFT)
+#define FP_RND_MINF	(FPCR_DYN_MINUS >> FPCR_DYN_SHIFT)
+
+/* Exception flags. */
+#define FP_EX_INVALID		IEEE_TRAP_ENABLE_INV
+#define FP_EX_OVERFLOW		IEEE_TRAP_ENABLE_OVF
+#define FP_EX_UNDERFLOW		IEEE_TRAP_ENABLE_UNF
+#define FP_EX_DIVZERO		IEEE_TRAP_ENABLE_DZE
+#define FP_EX_INEXACT		IEEE_TRAP_ENABLE_INE
+#define FP_EX_DENORM		IEEE_TRAP_ENABLE_DNO
+
+#define FP_DENORM_ZERO		(swcr & IEEE_MAP_DMZ)
+
+/* We write the results always */
+#define FP_INHIBIT_RESULTS 0
+
+#endif
diff --git a/arch/alpha/include/asm/shmparam.h b/arch/alpha/include/asm/shmparam.h
new file mode 100644
index 000000000..0c04fde1a
--- /dev/null
+++ b/arch/alpha/include/asm/shmparam.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SHMPARAM_H
+#define _ASMAXP_SHMPARAM_H
+
+#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
+
+#endif /* _ASMAXP_SHMPARAM_H */
diff --git a/arch/alpha/include/asm/signal.h b/arch/alpha/include/asm/signal.h
new file mode 100644
index 000000000..a40f02011
--- /dev/null
+++ b/arch/alpha/include/asm/signal.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SIGNAL_H
+#define _ASMAXP_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Digital Unix defines 64 signals.  Most things should be clean enough
+   to redefine this at will, if care is taken to make libc match.  */
+
+#define _NSIG		64
+#define _NSIG_BPW	64
+#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;		/* at least 32 bits */
+
+typedef struct {
+	unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+struct osf_sigaction {
+	__sighandler_t	sa_handler;
+	old_sigset_t	sa_mask;
+	int		sa_flags;
+};
+
+#define __ARCH_HAS_KA_RESTORER
+#include <asm/sigcontext.h>
+#endif
diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h
new file mode 100644
index 000000000..2264ae726
--- /dev/null
+++ b/arch/alpha/include/asm/smp.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+#include <asm/pal.h>
+
+/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */
+
+static __inline__ unsigned char
+__hard_smp_processor_id(void)
+{
+	register unsigned char __r0 __asm__("$0");
+	__asm__ __volatile__(
+		"call_pal %1 #whami"
+		: "=r"(__r0)
+		:"i" (PAL_whami)
+		: "$1", "$22", "$23", "$24", "$25");
+	return __r0;
+}
+
+#ifdef CONFIG_SMP
+
+#include <asm/irq.h>
+
+struct cpuinfo_alpha {
+	unsigned long loops_per_jiffy;
+	unsigned long last_asn;
+	int need_new_asn;
+	int asn_lock;
+	unsigned long ipi_count;
+	unsigned long prof_multiplier;
+	unsigned long prof_counter;
+	unsigned char mcheck_expected;
+	unsigned char mcheck_taken;
+	unsigned char mcheck_extra;
+} __attribute__((aligned(64)));
+
+extern struct cpuinfo_alpha cpu_data[NR_CPUS];
+
+#define hard_smp_processor_id()	__hard_smp_processor_id()
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+
+extern int smp_num_cpus;
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+#else /* CONFIG_SMP */
+
+#define hard_smp_processor_id()		0
+#define smp_call_function_on_cpu(func,info,wait,cpu)    ({ 0; })
+
+#endif /* CONFIG_SMP */
+
+#define NO_PROC_ID	(-1)
+
+#endif
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
new file mode 100644
index 000000000..76a32817e
--- /dev/null
+++ b/arch/alpha/include/asm/socket.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/alpha/include/asm/sparsemem.h b/arch/alpha/include/asm/sparsemem.h
new file mode 100644
index 000000000..a0820fd2d
--- /dev/null
+++ b/arch/alpha/include/asm/sparsemem.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_SPARSEMEM_H
+#define _ASM_ALPHA_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+
+#define SECTION_SIZE_BITS	27
+
+/*
+ * According to "Alpha Architecture Reference Manual" physical
+ * addresses are at most 48 bits.
+ * https://download.majix.org/dec/alpha_arch_ref.pdf
+ */
+#define MAX_PHYSMEM_BITS	48
+
+#endif /* CONFIG_SPARSEMEM */
+
+#endif /* _ASM_ALPHA_SPARSEMEM_H */
diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h
new file mode 100644
index 000000000..ca2c5c30b
--- /dev/null
+++ b/arch/alpha/include/asm/special_insns.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_SPECIAL_INSNS_H
+#define __ALPHA_SPECIAL_INSNS_H
+
+enum implver_enum {
+	IMPLVER_EV4,
+	IMPLVER_EV5,
+	IMPLVER_EV6
+};
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define implver()				\
+({ unsigned long __implver;			\
+   __asm__ ("implver %0" : "=r"(__implver));	\
+   (enum implver_enum) __implver; })
+#else
+/* Try to eliminate some dead code.  */
+#ifdef CONFIG_ALPHA_EV4
+#define implver() IMPLVER_EV4
+#endif
+#ifdef CONFIG_ALPHA_EV5
+#define implver() IMPLVER_EV5
+#endif
+#if defined(CONFIG_ALPHA_EV6)
+#define implver() IMPLVER_EV6
+#endif
+#endif
+
+enum amask_enum {
+	AMASK_BWX = (1UL << 0),
+	AMASK_FIX = (1UL << 1),
+	AMASK_CIX = (1UL << 2),
+	AMASK_MAX = (1UL << 8),
+	AMASK_PRECISE_TRAP = (1UL << 9),
+};
+
+#define amask(mask)						\
+({ unsigned long __amask, __input = (mask);			\
+   __asm__ ("amask %1,%0" : "=r"(__amask) : "rI"(__input));	\
+   __amask; })
+
+#endif /* __ALPHA_SPECIAL_INSNS_H */
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
new file mode 100644
index 000000000..1221cbb86
--- /dev/null
+++ b/arch/alpha/include/asm/spinlock.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_SPINLOCK_H
+#define _ALPHA_SPINLOCK_H
+
+#include <linux/kernel.h>
+#include <asm/current.h>
+#include <asm/barrier.h>
+#include <asm/processor.h>
+
+/*
+ * Simple spin lock operations.  There are two variants, one clears IRQ's
+ * on the local processor, one does not.
+ *
+ * We make no fairness assumptions. They have a cost.
+ */
+
+#define arch_spin_is_locked(x)	((x)->lock != 0)
+
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+        return lock.lock == 0;
+}
+
+static inline void arch_spin_unlock(arch_spinlock_t * lock)
+{
+	mb();
+	lock->lock = 0;
+}
+
+static inline void arch_spin_lock(arch_spinlock_t * lock)
+{
+	long tmp;
+
+	__asm__ __volatile__(
+	"1:	ldl_l	%0,%1\n"
+	"	bne	%0,2f\n"
+	"	lda	%0,1\n"
+	"	stl_c	%0,%1\n"
+	"	beq	%0,2f\n"
+	"	mb\n"
+	".subsection 2\n"
+	"2:	ldl	%0,%1\n"
+	"	bne	%0,2b\n"
+	"	br	1b\n"
+	".previous"
+	: "=&r" (tmp), "=m" (lock->lock)
+	: "m"(lock->lock) : "memory");
+}
+
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
+{
+	return !test_and_set_bit(0, &lock->lock);
+}
+
+/***********************************************************/
+
+static inline void arch_read_lock(arch_rwlock_t *lock)
+{
+	long regx;
+
+	__asm__ __volatile__(
+	"1:	ldl_l	%1,%0\n"
+	"	blbs	%1,6f\n"
+	"	subl	%1,2,%1\n"
+	"	stl_c	%1,%0\n"
+	"	beq	%1,6f\n"
+	"	mb\n"
+	".subsection 2\n"
+	"6:	ldl	%1,%0\n"
+	"	blbs	%1,6b\n"
+	"	br	1b\n"
+	".previous"
+	: "=m" (*lock), "=&r" (regx)
+	: "m" (*lock) : "memory");
+}
+
+static inline void arch_write_lock(arch_rwlock_t *lock)
+{
+	long regx;
+
+	__asm__ __volatile__(
+	"1:	ldl_l	%1,%0\n"
+	"	bne	%1,6f\n"
+	"	lda	%1,1\n"
+	"	stl_c	%1,%0\n"
+	"	beq	%1,6f\n"
+	"	mb\n"
+	".subsection 2\n"
+	"6:	ldl	%1,%0\n"
+	"	bne	%1,6b\n"
+	"	br	1b\n"
+	".previous"
+	: "=m" (*lock), "=&r" (regx)
+	: "m" (*lock) : "memory");
+}
+
+static inline int arch_read_trylock(arch_rwlock_t * lock)
+{
+	long regx;
+	int success;
+
+	__asm__ __volatile__(
+	"1:	ldl_l	%1,%0\n"
+	"	lda	%2,0\n"
+	"	blbs	%1,2f\n"
+	"	subl	%1,2,%2\n"
+	"	stl_c	%2,%0\n"
+	"	beq	%2,6f\n"
+	"2:	mb\n"
+	".subsection 2\n"
+	"6:	br	1b\n"
+	".previous"
+	: "=m" (*lock), "=&r" (regx), "=&r" (success)
+	: "m" (*lock) : "memory");
+
+	return success;
+}
+
+static inline int arch_write_trylock(arch_rwlock_t * lock)
+{
+	long regx;
+	int success;
+
+	__asm__ __volatile__(
+	"1:	ldl_l	%1,%0\n"
+	"	lda	%2,0\n"
+	"	bne	%1,2f\n"
+	"	lda	%2,1\n"
+	"	stl_c	%2,%0\n"
+	"	beq	%2,6f\n"
+	"2:	mb\n"
+	".subsection 2\n"
+	"6:	br	1b\n"
+	".previous"
+	: "=m" (*lock), "=&r" (regx), "=&r" (success)
+	: "m" (*lock) : "memory");
+
+	return success;
+}
+
+static inline void arch_read_unlock(arch_rwlock_t * lock)
+{
+	long regx;
+	__asm__ __volatile__(
+	"	mb\n"
+	"1:	ldl_l	%1,%0\n"
+	"	addl	%1,2,%1\n"
+	"	stl_c	%1,%0\n"
+	"	beq	%1,6f\n"
+	".subsection 2\n"
+	"6:	br	1b\n"
+	".previous"
+	: "=m" (*lock), "=&r" (regx)
+	: "m" (*lock) : "memory");
+}
+
+static inline void arch_write_unlock(arch_rwlock_t * lock)
+{
+	mb();
+	lock->lock = 0;
+}
+
+#endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/alpha/include/asm/spinlock_types.h b/arch/alpha/include/asm/spinlock_types.h
new file mode 100644
index 000000000..2526fd3be
--- /dev/null
+++ b/arch/alpha/include/asm/spinlock_types.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_SPINLOCK_TYPES_H
+#define _ALPHA_SPINLOCK_TYPES_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
+# error "please don't include this file directly"
+#endif
+
+typedef struct {
+	volatile unsigned int lock;
+} arch_spinlock_t;
+
+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
+
+typedef struct {
+	volatile unsigned int lock;
+} arch_rwlock_t;
+
+#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
+
+#endif
diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
new file mode 100644
index 000000000..f043f91ff
--- /dev/null
+++ b/arch/alpha/include/asm/string.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_STRING_H__
+#define __ALPHA_STRING_H__
+
+#ifdef __KERNEL__
+
+/*
+ * GCC of any recent vintage doesn't do stupid things with bcopy.
+ * EGCS 1.1 knows all about expanding memcpy inline, others don't.
+ *
+ * Similarly for a memset with data = 0.
+ */
+
+#define __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, size_t);
+#define __HAVE_ARCH_MEMMOVE
+extern void * memmove(void *, const void *, size_t);
+
+/* For backward compatibility with modules.  Unused otherwise.  */
+extern void * __memcpy(void *, const void *, size_t);
+
+#define memcpy __builtin_memcpy
+
+#define __HAVE_ARCH_MEMSET
+extern void * __constant_c_memset(void *, unsigned long, size_t);
+extern void * ___memset(void *, int, size_t);
+extern void * __memset(void *, int, size_t);
+extern void * memset(void *, int, size_t);
+
+/* For gcc 3.x, we cannot have the inline function named "memset" because
+   the __builtin_memset will attempt to resolve to the inline as well,
+   leading to a "sorry" about unimplemented recursive inlining.  */
+extern inline void *__memset(void *s, int c, size_t n)
+{
+	if (__builtin_constant_p(c)) {
+		if (__builtin_constant_p(n)) {
+			return __builtin_memset(s, c, n);
+		} else {
+			unsigned long c8 = (c & 0xff) * 0x0101010101010101UL;
+			return __constant_c_memset(s, c8, n);
+		}
+	}
+	return ___memset(s, c, n);
+}
+
+#define memset __memset
+
+#define __HAVE_ARCH_STRCPY
+extern char * strcpy(char *,const char *);
+#define __HAVE_ARCH_STRNCPY
+extern char * strncpy(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCAT
+extern char * strcat(char *, const char *);
+#define __HAVE_ARCH_STRNCAT
+extern char * strncat(char *, const char *, size_t);
+#define __HAVE_ARCH_STRCHR
+extern char * strchr(const char *,int);
+#define __HAVE_ARCH_STRRCHR
+extern char * strrchr(const char *,int);
+#define __HAVE_ARCH_STRLEN
+extern size_t strlen(const char *);
+#define __HAVE_ARCH_MEMCHR
+extern void * memchr(const void *, int, size_t);
+
+/* The following routine is like memset except that it writes 16-bit
+   aligned values.  The DEST and COUNT parameters must be even for 
+   correct operation.  */
+
+#define __HAVE_ARCH_MEMSET16
+extern void * __memset16(void *dest, unsigned short, size_t count);
+static inline void *memset16(uint16_t *p, uint16_t v, size_t n)
+{
+	if (__builtin_constant_p(v))
+		return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2);
+	return __memset16(p, v, n * 2);
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_STRING_H__ */
diff --git a/arch/alpha/include/asm/switch_to.h b/arch/alpha/include/asm/switch_to.h
new file mode 100644
index 000000000..762b7f975
--- /dev/null
+++ b/arch/alpha/include/asm/switch_to.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_SWITCH_TO_H
+#define __ALPHA_SWITCH_TO_H
+
+
+struct task_struct;
+extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct *);
+
+#define switch_to(P,N,L)						 \
+  do {									 \
+    (L) = alpha_switch_to(virt_to_phys(&task_thread_info(N)->pcb), (P)); \
+    check_mmu_context();						 \
+  } while (0)
+
+#endif /* __ALPHA_SWITCH_TO_H */
diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h
new file mode 100644
index 000000000..f21babaee
--- /dev/null
+++ b/arch/alpha/include/asm/syscall.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_SYSCALL_H
+#define _ASM_ALPHA_SYSCALL_H
+
+#include <uapi/linux/audit.h>
+
+static inline int syscall_get_arch(struct task_struct *task)
+{
+	return AUDIT_ARCH_ALPHA;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+					    struct pt_regs *regs)
+{
+	return regs->r0;
+}
+
+#endif	/* _ASM_ALPHA_SYSCALL_H */
diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
new file mode 100644
index 000000000..084c27cb0
--- /dev/null
+++ b/arch/alpha/include/asm/thread_info.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_THREAD_INFO_H
+#define _ALPHA_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/types.h>
+#include <asm/hwrpb.h>
+#include <asm/sysinfo.h>
+#endif
+
+#ifndef __ASSEMBLY__
+struct thread_info {
+	struct pcb_struct	pcb;		/* palcode state */
+
+	struct task_struct	*task;		/* main task structure */
+	unsigned int		flags;		/* low level flags */
+	unsigned int		ieee_state;	/* see fpu.h */
+
+	unsigned		cpu;		/* current CPU */
+	int			preempt_count; /* 0 => preemptable, <0 => BUG */
+	unsigned int		status;		/* thread-synchronous flags */
+
+	int bpt_nsaved;
+	unsigned long bpt_addr[2];		/* breakpoint handling  */
+	unsigned int bpt_insn[2];
+};
+
+/*
+ * Macros/functions for gaining access to the thread information structure.
+ */
+#define INIT_THREAD_INFO(tsk)			\
+{						\
+	.task		= &tsk,			\
+	.preempt_count	= INIT_PREEMPT_COUNT,	\
+}
+
+/* How to get the thread information struct from C.  */
+register struct thread_info *__current_thread_info __asm__("$8");
+#define current_thread_info()  __current_thread_info
+
+#endif /* __ASSEMBLY__ */
+
+/* Thread information allocation.  */
+#define THREAD_SIZE_ORDER 1
+#define THREAD_SIZE (2*PAGE_SIZE)
+
+/*
+ * Thread information flags:
+ * - these are process state flags and used from assembly
+ * - pending work-to-be-done flags come first and must be assigned to be
+ *   within bits 0 to 7 to fit in and immediate operand.
+ *
+ * TIF_SYSCALL_TRACE is known to be 0 via blbs.
+ */
+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
+#define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
+#define TIF_SIGPENDING		2	/* signal pending */
+#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
+#define TIF_SYSCALL_AUDIT	4	/* syscall audit active */
+#define TIF_NOTIFY_SIGNAL	5	/* signal notifications exist */
+#define TIF_DIE_IF_KERNEL	9	/* dik recursion lock */
+#define TIF_MEMDIE		13	/* is terminating due to OOM killer */
+#define TIF_POLLING_NRFLAG	14	/* idle is polling for TIF_NEED_RESCHED */
+
+#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
+#define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
+#define _TIF_NOTIFY_SIGNAL	(1<<TIF_NOTIFY_SIGNAL)
+#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
+
+/* Work to do on interrupt/exception return.  */
+#define _TIF_WORK_MASK		(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+				 _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL)
+
+/* Work to do on any return to userspace.  */
+#define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK		\
+				 | _TIF_SYSCALL_TRACE)
+
+#define TS_UAC_NOPRINT		0x0001	/* ! Preserve the following three */
+#define TS_UAC_NOFIX		0x0002	/* ! flags as they match          */
+#define TS_UAC_SIGBUS		0x0004	/* ! userspace part of 'osf_sysinfo' */
+
+#define SET_UNALIGN_CTL(task,value)	({				\
+	__u32 status = task_thread_info(task)->status & ~UAC_BITMASK;	\
+	if (value & PR_UNALIGN_NOPRINT)					\
+		status |= TS_UAC_NOPRINT;				\
+	if (value & PR_UNALIGN_SIGBUS)					\
+		status |= TS_UAC_SIGBUS;				\
+	if (value & 4)	/* alpha-specific */				\
+		status |= TS_UAC_NOFIX;					\
+	task_thread_info(task)->status = status;			\
+	0; })
+
+#define GET_UNALIGN_CTL(task,value)	({				\
+	__u32 status = task_thread_info(task)->status & ~UAC_BITMASK;	\
+	__u32 res = 0;							\
+	if (status & TS_UAC_NOPRINT)					\
+		res |= PR_UNALIGN_NOPRINT;				\
+	if (status & TS_UAC_SIGBUS)					\
+		res |= PR_UNALIGN_SIGBUS;				\
+	if (status & TS_UAC_NOFIX)					\
+		res |= 4;						\
+	put_user(res, (int __user *)(value));				\
+	})
+
+#endif /* __KERNEL__ */
+#endif /* _ALPHA_THREAD_INFO_H */
diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h
new file mode 100644
index 000000000..f89798da8
--- /dev/null
+++ b/arch/alpha/include/asm/timex.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/asm-alpha/timex.h
+ *
+ * ALPHA architecture timex specifications
+ */
+#ifndef _ASMALPHA_TIMEX_H
+#define _ASMALPHA_TIMEX_H
+
+/* With only one or two oddballs, we use the RTC as the ticker, selecting
+   the 32.768kHz reference clock, which nicely divides down to our HZ.  */
+#define CLOCK_TICK_RATE	32768
+
+/*
+ * Standard way to access the cycle counter.
+ * Currently only used on SMP for scheduling.
+ *
+ * Only the low 32 bits are available as a continuously counting entity. 
+ * But this only means we'll force a reschedule every 8 seconds or so,
+ * which isn't an evil thing.
+ */
+
+typedef unsigned int cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+	cycles_t ret;
+	__asm__ __volatile__ ("rpcc %0" : "=r"(ret));
+	return ret;
+}
+#define get_cycles get_cycles
+
+#endif
diff --git a/arch/alpha/include/asm/tlb.h b/arch/alpha/include/asm/tlb.h
new file mode 100644
index 000000000..4f79e331a
--- /dev/null
+++ b/arch/alpha/include/asm/tlb.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TLB_H
+#define _ALPHA_TLB_H
+
+#include <asm-generic/tlb.h>
+
+#define __pte_free_tlb(tlb, pte, address)		pte_free((tlb)->mm, pte)
+#define __pmd_free_tlb(tlb, pmd, address)		pmd_free((tlb)->mm, pmd)
+ 
+#endif
diff --git a/arch/alpha/include/asm/tlbflush.h b/arch/alpha/include/asm/tlbflush.h
new file mode 100644
index 000000000..94dc37cf8
--- /dev/null
+++ b/arch/alpha/include/asm/tlbflush.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TLBFLUSH_H
+#define _ALPHA_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <asm/compiler.h>
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+
+/* Use a few helper functions to hide the ugly broken ASN
+   numbers on early Alphas (ev4 and ev45).  */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current(struct mm_struct *mm)
+{
+	__load_new_mm_context(mm);
+	tbiap();
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current(struct mm_struct *mm)
+{
+	__load_new_mm_context(mm);
+}
+
+/* Flush just one page in the current TLB set.  We need to be very
+   careful about the icache here, there is no way to invalidate a
+   specific icache page.  */
+
+__EXTERN_INLINE void
+ev4_flush_tlb_current_page(struct mm_struct * mm,
+			   struct vm_area_struct *vma,
+			   unsigned long addr)
+{
+	int tbi_flag = 2;
+	if (vma->vm_flags & VM_EXEC) {
+		__load_new_mm_context(mm);
+		tbi_flag = 3;
+	}
+	tbi(tbi_flag, addr);
+}
+
+__EXTERN_INLINE void
+ev5_flush_tlb_current_page(struct mm_struct * mm,
+			   struct vm_area_struct *vma,
+			   unsigned long addr)
+{
+	if (vma->vm_flags & VM_EXEC)
+		__load_new_mm_context(mm);
+	else
+		tbi(2, addr);
+}
+
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define flush_tlb_current		alpha_mv.mv_flush_tlb_current
+# define flush_tlb_current_page		alpha_mv.mv_flush_tlb_current_page
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define flush_tlb_current		ev4_flush_tlb_current
+#  define flush_tlb_current_page	ev4_flush_tlb_current_page
+# else
+#  define flush_tlb_current		ev5_flush_tlb_current
+#  define flush_tlb_current_page	ev5_flush_tlb_current_page
+# endif
+#endif
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+/* Flush current user mapping.  */
+static inline void
+flush_tlb(void)
+{
+	flush_tlb_current(current->active_mm);
+}
+
+/* Flush someone else's user mapping.  */
+static inline void
+flush_tlb_other(struct mm_struct *mm)
+{
+	unsigned long *mmc = &mm->context[smp_processor_id()];
+	/* Check it's not zero first to avoid cacheline ping pong
+	   when possible.  */
+	if (*mmc) *mmc = 0;
+}
+
+#ifndef CONFIG_SMP
+/* Flush everything (kernel mapping may also have changed
+   due to vmalloc/vfree).  */
+static inline void flush_tlb_all(void)
+{
+	tbia();
+}
+
+/* Flush a specified user mapping.  */
+static inline void
+flush_tlb_mm(struct mm_struct *mm)
+{
+	if (mm == current->active_mm)
+		flush_tlb_current(mm);
+	else
+		flush_tlb_other(mm);
+}
+
+/* Page-granular tlb flush.  */
+static inline void
+flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	if (mm == current->active_mm)
+		flush_tlb_current_page(mm, vma, addr);
+	else
+		flush_tlb_other(mm);
+}
+
+/* Flush a specified range of user mapping.  On the Alpha we flush
+   the whole user tlb.  */
+static inline void
+flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+		unsigned long end)
+{
+	flush_tlb_mm(vma->vm_mm);
+}
+
+#else /* CONFIG_SMP */
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void flush_tlb_range(struct vm_area_struct *, unsigned long,
+			    unsigned long);
+
+#endif /* CONFIG_SMP */
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+					unsigned long end)
+{
+	flush_tlb_all();
+}
+
+#endif /* _ALPHA_TLBFLUSH_H */
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
new file mode 100644
index 000000000..7d393036a
--- /dev/null
+++ b/arch/alpha/include/asm/topology.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_TOPOLOGY_H
+#define _ASM_ALPHA_TOPOLOGY_H
+
+#include <linux/smp.h>
+#include <linux/threads.h>
+#include <linux/numa.h>
+#include <asm/machvec.h>
+
+# include <asm-generic/topology.h>
+
+#endif /* _ASM_ALPHA_TOPOLOGY_H */
diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
new file mode 100644
index 000000000..b60b60276
--- /dev/null
+++ b/arch/alpha/include/asm/types.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_TYPES_H
+#define _ALPHA_TYPES_H
+
+#include <uapi/asm/types.h>
+
+#endif /* _ALPHA_TYPES_H */
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
new file mode 100644
index 000000000..c32c2584c
--- /dev/null
+++ b/arch/alpha/include/asm/uaccess.h
@@ -0,0 +1,292 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_UACCESS_H
+#define __ALPHA_UACCESS_H
+
+#include <asm-generic/access_ok.h>
+/*
+ * These are the main single-value transfer routines.  They automatically
+ * use the right size if we just have the right pointer type.
+ *
+ * As the alpha uses the same address space for kernel and user
+ * data, we can just do these as direct assignments.  (Of course, the
+ * exception handling means that it's no longer "just"...)
+ *
+ * Careful to not
+ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
+ * (b) require any knowledge of processes at this stage
+ */
+#define put_user(x, ptr) \
+  __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#define get_user(x, ptr) \
+  __get_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "__xxx" versions do not do address space checking, useful when
+ * doing multiple accesses to the same area (the programmer has to do the
+ * checks by hand with "access_ok()")
+ */
+#define __put_user(x, ptr) \
+  __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#define __get_user(x, ptr) \
+  __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+  
+/*
+ * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to
+ * encode the bits we need for resolving the exception.  See the
+ * more extensive comments with fixup_inline_exception below for
+ * more information.
+ */
+#define EXC(label,cont,res,err)				\
+	".section __ex_table,\"a\"\n"			\
+	"	.long "#label"-.\n"			\
+	"	lda "#res","#cont"-"#label"("#err")\n"	\
+	".previous\n"
+
+extern void __get_user_unknown(void);
+
+#define __get_user_nocheck(x, ptr, size)			\
+({								\
+	long __gu_err = 0;					\
+	unsigned long __gu_val;					\
+	__chk_user_ptr(ptr);					\
+	switch (size) {						\
+	  case 1: __get_user_8(ptr); break;			\
+	  case 2: __get_user_16(ptr); break;			\
+	  case 4: __get_user_32(ptr); break;			\
+	  case 8: __get_user_64(ptr); break;			\
+	  default: __get_user_unknown(); break;			\
+	}							\
+	(x) = (__force __typeof__(*(ptr))) __gu_val;		\
+	__gu_err;						\
+})
+
+#define __get_user_check(x, ptr, size)				\
+({								\
+	long __gu_err = -EFAULT;				\
+	unsigned long __gu_val = 0;				\
+	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
+	if (__access_ok(__gu_addr, size)) {			\
+		__gu_err = 0;					\
+		switch (size) {					\
+		  case 1: __get_user_8(__gu_addr); break;	\
+		  case 2: __get_user_16(__gu_addr); break;	\
+		  case 4: __get_user_32(__gu_addr); break;	\
+		  case 8: __get_user_64(__gu_addr); break;	\
+		  default: __get_user_unknown(); break;		\
+		}						\
+	}							\
+	(x) = (__force __typeof__(*(ptr))) __gu_val;		\
+	__gu_err;						\
+})
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct __user *)(x))
+
+#define __get_user_64(addr)				\
+	__asm__("1: ldq %0,%2\n"			\
+	"2:\n"						\
+	EXC(1b,2b,%0,%1)				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
+		: "m"(__m(addr)), "1"(__gu_err))
+
+#define __get_user_32(addr)				\
+	__asm__("1: ldl %0,%2\n"			\
+	"2:\n"						\
+	EXC(1b,2b,%0,%1)				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
+		: "m"(__m(addr)), "1"(__gu_err))
+
+#ifdef __alpha_bwx__
+/* Those lucky bastards with ev56 and later CPUs can do byte/word moves.  */
+
+#define __get_user_16(addr)				\
+	__asm__("1: ldwu %0,%2\n"			\
+	"2:\n"						\
+	EXC(1b,2b,%0,%1)				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
+		: "m"(__m(addr)), "1"(__gu_err))
+
+#define __get_user_8(addr)				\
+	__asm__("1: ldbu %0,%2\n"			\
+	"2:\n"						\
+	EXC(1b,2b,%0,%1)				\
+		: "=r"(__gu_val), "=r"(__gu_err)	\
+		: "m"(__m(addr)), "1"(__gu_err))
+#else
+/* Unfortunately, we can't get an unaligned access trap for the sub-word
+   load, so we have to do a general unaligned operation.  */
+
+#define __get_user_16(addr)						\
+{									\
+	long __gu_tmp;							\
+	__asm__("1: ldq_u %0,0(%3)\n"					\
+	"2:	ldq_u %1,1(%3)\n"					\
+	"	extwl %0,%3,%0\n"					\
+	"	extwh %1,%3,%1\n"					\
+	"	or %0,%1,%0\n"						\
+	"3:\n"								\
+	EXC(1b,3b,%0,%2)						\
+	EXC(2b,3b,%0,%2)						\
+		: "=&r"(__gu_val), "=&r"(__gu_tmp), "=r"(__gu_err)	\
+		: "r"(addr), "2"(__gu_err));				\
+}
+
+#define __get_user_8(addr)						\
+	__asm__("1: ldq_u %0,0(%2)\n"					\
+	"	extbl %0,%2,%0\n"					\
+	"2:\n"								\
+	EXC(1b,2b,%0,%1)						\
+		: "=&r"(__gu_val), "=r"(__gu_err)			\
+		: "r"(addr), "1"(__gu_err))
+#endif
+
+extern void __put_user_unknown(void);
+
+#define __put_user_nocheck(x, ptr, size)			\
+({								\
+	long __pu_err = 0;					\
+	__chk_user_ptr(ptr);					\
+	switch (size) {						\
+	  case 1: __put_user_8(x, ptr); break;			\
+	  case 2: __put_user_16(x, ptr); break;			\
+	  case 4: __put_user_32(x, ptr); break;			\
+	  case 8: __put_user_64(x, ptr); break;			\
+	  default: __put_user_unknown(); break;			\
+	}							\
+	__pu_err;						\
+})
+
+#define __put_user_check(x, ptr, size)				\
+({								\
+	long __pu_err = -EFAULT;				\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
+	if (__access_ok(__pu_addr, size)) {			\
+		__pu_err = 0;					\
+		switch (size) {					\
+		  case 1: __put_user_8(x, __pu_addr); break;	\
+		  case 2: __put_user_16(x, __pu_addr); break;	\
+		  case 4: __put_user_32(x, __pu_addr); break;	\
+		  case 8: __put_user_64(x, __pu_addr); break;	\
+		  default: __put_user_unknown(); break;		\
+		}						\
+	}							\
+	__pu_err;						\
+})
+
+/*
+ * The "__put_user_xx()" macros tell gcc they read from memory
+ * instead of writing: this is because they do not write to
+ * any memory gcc knows about, so there are no aliasing issues
+ */
+#define __put_user_64(x, addr)					\
+__asm__ __volatile__("1: stq %r2,%1\n"				\
+	"2:\n"							\
+	EXC(1b,2b,$31,%0)					\
+		: "=r"(__pu_err)				\
+		: "m" (__m(addr)), "rJ" (x), "0"(__pu_err))
+
+#define __put_user_32(x, addr)					\
+__asm__ __volatile__("1: stl %r2,%1\n"				\
+	"2:\n"							\
+	EXC(1b,2b,$31,%0)					\
+		: "=r"(__pu_err)				\
+		: "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+
+#ifdef __alpha_bwx__
+/* Those lucky bastards with ev56 and later CPUs can do byte/word moves.  */
+
+#define __put_user_16(x, addr)					\
+__asm__ __volatile__("1: stw %r2,%1\n"				\
+	"2:\n"							\
+	EXC(1b,2b,$31,%0)					\
+		: "=r"(__pu_err)				\
+		: "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+
+#define __put_user_8(x, addr)					\
+__asm__ __volatile__("1: stb %r2,%1\n"				\
+	"2:\n"							\
+	EXC(1b,2b,$31,%0)					\
+		: "=r"(__pu_err)				\
+		: "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
+#else
+/* Unfortunately, we can't get an unaligned access trap for the sub-word
+   write, so we have to do a general unaligned operation.  */
+
+#define __put_user_16(x, addr)					\
+{								\
+	long __pu_tmp1, __pu_tmp2, __pu_tmp3, __pu_tmp4;	\
+	__asm__ __volatile__(					\
+	"1:	ldq_u %2,1(%5)\n"				\
+	"2:	ldq_u %1,0(%5)\n"				\
+	"	inswh %6,%5,%4\n"				\
+	"	inswl %6,%5,%3\n"				\
+	"	mskwh %2,%5,%2\n"				\
+	"	mskwl %1,%5,%1\n"				\
+	"	or %2,%4,%2\n"					\
+	"	or %1,%3,%1\n"					\
+	"3:	stq_u %2,1(%5)\n"				\
+	"4:	stq_u %1,0(%5)\n"				\
+	"5:\n"							\
+	EXC(1b,5b,$31,%0)					\
+	EXC(2b,5b,$31,%0)					\
+	EXC(3b,5b,$31,%0)					\
+	EXC(4b,5b,$31,%0)					\
+		: "=r"(__pu_err), "=&r"(__pu_tmp1), 		\
+		  "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), 		\
+		  "=&r"(__pu_tmp4)				\
+		: "r"(addr), "r"((unsigned long)(x)), "0"(__pu_err)); \
+}
+
+#define __put_user_8(x, addr)					\
+{								\
+	long __pu_tmp1, __pu_tmp2;				\
+	__asm__ __volatile__(					\
+	"1:	ldq_u %1,0(%4)\n"				\
+	"	insbl %3,%4,%2\n"				\
+	"	mskbl %1,%4,%1\n"				\
+	"	or %1,%2,%1\n"					\
+	"2:	stq_u %1,0(%4)\n"				\
+	"3:\n"							\
+	EXC(1b,3b,$31,%0)					\
+	EXC(2b,3b,$31,%0)					\
+		: "=r"(__pu_err), 				\
+	  	  "=&r"(__pu_tmp1), "=&r"(__pu_tmp2)		\
+		: "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \
+}
+#endif
+
+
+/*
+ * Complex access routines
+ */
+
+extern long __copy_user(void *to, const void *from, long len);
+
+static inline unsigned long
+raw_copy_from_user(void *to, const void __user *from, unsigned long len)
+{
+	return __copy_user(to, (__force const void *)from, len);
+}
+
+static inline unsigned long
+raw_copy_to_user(void __user *to, const void *from, unsigned long len)
+{
+	return __copy_user((__force void *)to, from, len);
+}
+
+extern long __clear_user(void __user *to, long len);
+
+static inline long
+clear_user(void __user *to, long len)
+{
+	if (__access_ok(to, len))
+		len = __clear_user(to, len);
+	return len;
+}
+
+extern long strncpy_from_user(char *dest, const char __user *src, long count);
+extern __must_check long strnlen_user(const char __user *str, long n);
+
+#include <asm/extable.h>
+
+#endif /* __ALPHA_UACCESS_H */
diff --git a/arch/alpha/include/asm/ucontext.h b/arch/alpha/include/asm/ucontext.h
new file mode 100644
index 000000000..af1f3465b
--- /dev/null
+++ b/arch/alpha/include/asm/ucontext.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_UCONTEXT_H
+#define _ASMAXP_UCONTEXT_H
+
+struct ucontext {
+	unsigned long	  uc_flags;
+	struct ucontext  *uc_link;
+	old_sigset_t	  uc_osf_sigmask;
+	stack_t		  uc_stack;
+	struct sigcontext uc_mcontext;
+	sigset_t	  uc_sigmask;	/* mask last for extensibility */
+};
+
+#endif /* !_ASMAXP_UCONTEXT_H */
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
new file mode 100644
index 000000000..986f5da9b
--- /dev/null
+++ b/arch/alpha/include/asm/unistd.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_UNISTD_H
+#define _ALPHA_UNISTD_H
+
+#include <uapi/asm/unistd.h>
+
+#define NR_SYSCALLS	__NR_syscalls
+
+#define __ARCH_WANT_NEW_STAT
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE
+
+#endif /* _ALPHA_UNISTD_H */
diff --git a/arch/alpha/include/asm/user.h b/arch/alpha/include/asm/user.h
new file mode 100644
index 000000000..c9f525a6a
--- /dev/null
+++ b/arch/alpha/include/asm/user.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_USER_H
+#define _ALPHA_USER_H
+
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+
+#include <asm/page.h>
+#include <asm/reg.h>
+
+/*
+ * Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
+ * are as follows:
+ *
+ *  upage: 1 page consisting of a user struct that tells gdb
+ *	what is present in the file.  Directly after this is a
+ *	copy of the task_struct, which is currently not used by gdb,
+ *	but it may come in handy at some point.  All of the registers
+ *	are stored as part of the upage.  The upage should always be
+ *	only one page long.
+ *  data: The data segment follows next.  We use current->end_text to
+ *	current->brk to pick up all of the user variables, plus any memory
+ *	that may have been sbrk'ed.  No attempt is made to determine if a
+ *	page is demand-zero or if a page is totally unused, we just cover
+ *	the entire range.  All of the addresses are rounded in such a way
+ *	that an integral number of pages is written.
+ *  stack: We need the stack information in order to get a meaningful
+ *	backtrace.  We need to write the data from usp to
+ *	current->start_stack, so we round each of these in order to be able
+ *	to write an integer number of pages.
+ */
+struct user {
+	unsigned long	regs[EF_SIZE/8+32];	/* integer and fp regs */
+	size_t		u_tsize;		/* text size (pages) */
+	size_t		u_dsize;		/* data size (pages) */
+	size_t		u_ssize;		/* stack size (pages) */
+	unsigned long	start_code;		/* text starting address */
+	unsigned long	start_data;		/* data starting address */
+	unsigned long	start_stack;		/* stack starting address */
+	long int	signal;			/* signal causing core dump */
+	unsigned long	u_ar0;			/* help gdb find registers */
+	unsigned long	magic;			/* identifies a core file */
+	char		u_comm[32];		/* user command name */
+};
+
+#endif /* _ALPHA_USER_H */
diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h
new file mode 100644
index 000000000..4c347a845
--- /dev/null
+++ b/arch/alpha/include/asm/vga.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	Access to VGA videoram
+ *
+ *	(c) 1998 Martin Mares <mj@ucw.cz>
+ */
+
+#ifndef _LINUX_ASM_VGA_H_
+#define _LINUX_ASM_VGA_H_
+
+#include <asm/io.h>
+
+#define VT_BUF_HAVE_RW
+#define VT_BUF_HAVE_MEMSETW
+#define VT_BUF_HAVE_MEMCPYW
+
+static inline void scr_writew(u16 val, volatile u16 *addr)
+{
+	if (__is_ioaddr(addr))
+		__raw_writew(val, (volatile u16 __iomem *) addr);
+	else
+		*addr = val;
+}
+
+static inline u16 scr_readw(volatile const u16 *addr)
+{
+	if (__is_ioaddr(addr))
+		return __raw_readw((volatile const u16 __iomem *) addr);
+	else
+		return *addr;
+}
+
+static inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
+{
+	if (__is_ioaddr(s))
+		memsetw_io((u16 __iomem *) s, c, count);
+	else
+		memset16(s, c, count / 2);
+}
+
+/* Do not trust that the usage will be correct; analyze the arguments.  */
+extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count);
+
+/* ??? These are currently only used for downloading character sets.  As
+   such, they don't need memory barriers.  Is this all they are intended
+   to be used for?  */
+#define vga_readb(a)	readb((u8 __iomem *)(a))
+#define vga_writeb(v,a)	writeb(v, (u8 __iomem *)(a))
+
+#ifdef CONFIG_VGA_HOSE
+#include <linux/ioport.h>
+#include <linux/pci.h>
+
+extern struct pci_controller *pci_vga_hose;
+
+# define __is_port_vga(a)       \
+	(((a) >= 0x3b0) && ((a) < 0x3e0) && \
+	 ((a) != 0x3b3) && ((a) != 0x3d3))
+
+# define __is_mem_vga(a) \
+	(((a) >= 0xa0000) && ((a) <= 0xc0000))
+
+# define FIXUP_IOADDR_VGA(a) do {                       \
+	if (pci_vga_hose && __is_port_vga(a))     \
+		(a) += pci_vga_hose->io_space->start;	  \
+ } while(0)
+
+# define FIXUP_MEMADDR_VGA(a) do {                       \
+	if (pci_vga_hose && __is_mem_vga(a))     \
+		(a) += pci_vga_hose->mem_space->start; \
+ } while(0)
+
+#else /* CONFIG_VGA_HOSE */
+# define pci_vga_hose 0
+# define __is_port_vga(a) 0
+# define __is_mem_vga(a) 0
+# define FIXUP_IOADDR_VGA(a)
+# define FIXUP_MEMADDR_VGA(a)
+#endif /* CONFIG_VGA_HOSE */
+
+#define VGA_MAP_MEM(x,s)	((unsigned long) ioremap(x, s))
+
+#endif
diff --git a/arch/alpha/include/asm/vmalloc.h b/arch/alpha/include/asm/vmalloc.h
new file mode 100644
index 000000000..0a9a366a4
--- /dev/null
+++ b/arch/alpha/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ALPHA_VMALLOC_H
+#define _ASM_ALPHA_VMALLOC_H
+
+#endif /* _ASM_ALPHA_VMALLOC_H */
diff --git a/arch/alpha/include/asm/word-at-a-time.h b/arch/alpha/include/asm/word-at-a-time.h
new file mode 100644
index 000000000..4035265f1
--- /dev/null
+++ b/arch/alpha/include/asm/word-at-a-time.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_WORD_AT_A_TIME_H
+#define _ASM_WORD_AT_A_TIME_H
+
+#include <asm/compiler.h>
+
+/*
+ * word-at-a-time interface for Alpha.
+ */
+
+/*
+ * We do not use the word_at_a_time struct on Alpha, but it needs to be
+ * implemented to humour the generic code.
+ */
+struct word_at_a_time {
+	const unsigned long unused;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { 0 }
+
+/* Return nonzero if val has a zero */
+static inline unsigned long has_zero(unsigned long val, unsigned long *bits, const struct word_at_a_time *c)
+{
+	unsigned long zero_locations = __kernel_cmpbge(0, val);
+	*bits = zero_locations;
+	return zero_locations;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long val, unsigned long bits, const struct word_at_a_time *c)
+{
+	return bits;
+}
+
+#define create_zero_mask(bits) (bits)
+
+static inline unsigned long find_zero(unsigned long bits)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+	/* Simple if have CIX instructions */
+	return __kernel_cttz(bits);
+#else
+	unsigned long t1, t2, t3;
+	/* Retain lowest set bit only */
+	bits &= -bits;
+	/* Binary search for lowest set bit */
+	t1 = bits & 0xf0;
+	t2 = bits & 0xcc;
+	t3 = bits & 0xaa;
+	if (t1) t1 = 4;
+	if (t2) t2 = 2;
+	if (t3) t3 = 1;
+	return t1 + t2 + t3;
+#endif
+}
+
+#define zero_bytemask(mask) ((2ul << (find_zero(mask) * 8)) - 1)
+
+#endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/arch/alpha/include/asm/wrperfmon.h b/arch/alpha/include/asm/wrperfmon.h
new file mode 100644
index 000000000..c97b82a1f
--- /dev/null
+++ b/arch/alpha/include/asm/wrperfmon.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Definitions for use with the Alpha wrperfmon PAL call.
+ */
+
+#ifndef __ALPHA_WRPERFMON_H
+#define __ALPHA_WRPERFMON_H
+
+/* Following commands are implemented on all CPUs */
+#define PERFMON_CMD_DISABLE 0
+#define PERFMON_CMD_ENABLE 1
+#define PERFMON_CMD_DESIRED_EVENTS 2
+#define PERFMON_CMD_LOGGING_OPTIONS 3
+/* Following commands on EV5/EV56/PCA56 only */
+#define PERFMON_CMD_INT_FREQ 4
+#define PERFMON_CMD_ENABLE_CLEAR 7
+/* Following commands are on EV5 and better CPUs */
+#define PERFMON_CMD_READ 5
+#define PERFMON_CMD_WRITE 6
+/* Following command are on EV6 and better CPUs */
+#define PERFMON_CMD_ENABLE_WRITE 7
+/* Following command are on EV67 and better CPUs */
+#define PERFMON_CMD_I_STAT 8
+#define PERFMON_CMD_PMPC 9
+
+
+/* EV5/EV56/PCA56 Counters */
+#define EV5_PCTR_0 (1UL<<0)
+#define EV5_PCTR_1 (1UL<<1)
+#define EV5_PCTR_2 (1UL<<2)
+
+#define EV5_PCTR_0_COUNT_SHIFT 48
+#define EV5_PCTR_1_COUNT_SHIFT 32
+#define EV5_PCTR_2_COUNT_SHIFT 16
+
+#define EV5_PCTR_0_COUNT_MASK 0xffffUL
+#define EV5_PCTR_1_COUNT_MASK 0xffffUL
+#define EV5_PCTR_2_COUNT_MASK 0x3fffUL
+
+/* EV6 Counters */
+#define EV6_PCTR_0 (1UL<<0)
+#define EV6_PCTR_1 (1UL<<1)
+
+#define EV6_PCTR_0_COUNT_SHIFT 28
+#define EV6_PCTR_1_COUNT_SHIFT 6
+
+#define EV6_PCTR_0_COUNT_MASK 0xfffffUL
+#define EV6_PCTR_1_COUNT_MASK 0xfffffUL
+
+/* EV67 (and subsequent) counters */
+#define EV67_PCTR_0 (1UL<<0)
+#define EV67_PCTR_1 (1UL<<1)
+
+#define EV67_PCTR_0_COUNT_SHIFT 28
+#define EV67_PCTR_1_COUNT_SHIFT 6
+
+#define EV67_PCTR_0_COUNT_MASK 0xfffffUL
+#define EV67_PCTR_1_COUNT_MASK 0xfffffUL
+
+
+/*
+ * The Alpha Architecure Handbook, vers. 4 (1998) appears to have a misprint
+ *  in Table E-23 regarding the bits that set the event PCTR 1 counts.
+ *  Hopefully what we have here is correct.
+ */
+#define EV6_PCTR_0_EVENT_MASK 0x10UL
+#define EV6_PCTR_1_EVENT_MASK 0x0fUL
+
+/* EV6 Events */
+#define EV6_PCTR_0_CYCLES (0UL << 4)
+#define EV6_PCTR_0_INSTRUCTIONS (1UL << 4)
+
+#define EV6_PCTR_1_CYCLES 0
+#define EV6_PCTR_1_BRANCHES 1
+#define EV6_PCTR_1_BRANCH_MISPREDICTS 2
+#define EV6_PCTR_1_DTB_SINGLE_MISSES 3
+#define EV6_PCTR_1_DTB_DOUBLE_MISSES 4
+#define EV6_PCTR_1_ITB_MISSES 5
+#define EV6_PCTR_1_UNALIGNED_TRAPS 6
+#define EV6_PCTR_1_REPLY_TRAPS 7
+
+/* From the Alpha Architecture Reference Manual, 4th edn., 2002 */
+#define EV67_PCTR_MODE_MASK 0x10UL
+#define EV67_PCTR_EVENT_MASK 0x0CUL
+
+#define EV67_PCTR_MODE_PROFILEME (1UL<<4)
+#define EV67_PCTR_MODE_AGGREGATE (0UL<<4)
+
+#define EV67_PCTR_INSTR_CYCLES (0UL<<2)
+#define EV67_PCTR_CYCLES_UNDEF (1UL<<2)
+#define EV67_PCTR_INSTR_BCACHEMISS (2UL<<2)
+#define EV67_PCTR_CYCLES_MBOX (3UL<<2)
+
+#endif
diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h
new file mode 100644
index 000000000..7adb80c67
--- /dev/null
+++ b/arch/alpha/include/asm/xchg.h
@@ -0,0 +1,246 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CMPXCHG_H
+#error Do not include xchg.h directly!
+#else
+/*
+ * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code
+ * except that local version do not have the expensive memory barrier.
+ * So this file is included twice from asm/cmpxchg.h.
+ */
+
+/*
+ * Atomic exchange.
+ * Since it can be used to implement critical sections
+ * it must clobber "memory" (also for interrupts in UP).
+ */
+
+static inline unsigned long
+____xchg(_u8, volatile char *m, unsigned long val)
+{
+	unsigned long ret, tmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%4,7,%3\n"
+	"	insbl	%1,%4,%1\n"
+	"1:	ldq_l	%2,0(%3)\n"
+	"	extbl	%2,%4,%0\n"
+	"	mskbl	%2,%4,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%3)\n"
+	"	beq	%2,2f\n"
+	".subsection 2\n"
+	"2:	br	1b\n"
+	".previous"
+	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+	: "r" ((long)m), "1" (val) : "memory");
+
+	return ret;
+}
+
+static inline unsigned long
+____xchg(_u16, volatile short *m, unsigned long val)
+{
+	unsigned long ret, tmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%4,7,%3\n"
+	"	inswl	%1,%4,%1\n"
+	"1:	ldq_l	%2,0(%3)\n"
+	"	extwl	%2,%4,%0\n"
+	"	mskwl	%2,%4,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%3)\n"
+	"	beq	%2,2f\n"
+	".subsection 2\n"
+	"2:	br	1b\n"
+	".previous"
+	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+	: "r" ((long)m), "1" (val) : "memory");
+
+	return ret;
+}
+
+static inline unsigned long
+____xchg(_u32, volatile int *m, unsigned long val)
+{
+	unsigned long dummy;
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%4\n"
+	"	bis $31,%3,%1\n"
+	"	stl_c %1,%2\n"
+	"	beq %1,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	: "=&r" (val), "=&r" (dummy), "=m" (*m)
+	: "rI" (val), "m" (*m) : "memory");
+
+	return val;
+}
+
+static inline unsigned long
+____xchg(_u64, volatile long *m, unsigned long val)
+{
+	unsigned long dummy;
+
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%4\n"
+	"	bis $31,%3,%1\n"
+	"	stq_c %1,%2\n"
+	"	beq %1,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	: "=&r" (val), "=&r" (dummy), "=m" (*m)
+	: "rI" (val), "m" (*m) : "memory");
+
+	return val;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid xchg().  */
+extern void __xchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____xchg(, volatile void *ptr, unsigned long x, int size)
+{
+	switch (size) {
+		case 1:
+			return ____xchg(_u8, ptr, x);
+		case 2:
+			return ____xchg(_u16, ptr, x);
+		case 4:
+			return ____xchg(_u32, ptr, x);
+		case 8:
+			return ____xchg(_u64, ptr, x);
+	}
+	__xchg_called_with_bad_pointer();
+	return x;
+}
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+static inline unsigned long
+____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
+{
+	unsigned long prev, tmp, cmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%5,7,%4\n"
+	"	insbl	%1,%5,%1\n"
+	"1:	ldq_l	%2,0(%4)\n"
+	"	extbl	%2,%5,%0\n"
+	"	cmpeq	%0,%6,%3\n"
+	"	beq	%3,2f\n"
+	"	mskbl	%2,%5,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%4)\n"
+	"	beq	%2,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
+{
+	unsigned long prev, tmp, cmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%5,7,%4\n"
+	"	inswl	%1,%5,%1\n"
+	"1:	ldq_l	%2,0(%4)\n"
+	"	extwl	%2,%5,%0\n"
+	"	cmpeq	%0,%6,%3\n"
+	"	beq	%3,2f\n"
+	"	mskwl	%2,%5,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%4)\n"
+	"	beq	%2,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u32, volatile int *m, int old, int new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%5\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stl_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%5\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stq_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+	return prev;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid cmpxchg().  */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____cmpxchg(, volatile void *ptr, unsigned long old, unsigned long new,
+	      int size)
+{
+	switch (size) {
+		case 1:
+			return ____cmpxchg(_u8, ptr, old, new);
+		case 2:
+			return ____cmpxchg(_u16, ptr, old, new);
+		case 4:
+			return ____cmpxchg(_u32, ptr, old, new);
+		case 8:
+			return ____cmpxchg(_u64, ptr, old, new);
+	}
+	__cmpxchg_called_with_bad_pointer();
+	return old;
+}
+
+#endif
diff --git a/arch/alpha/include/asm/xor.h b/arch/alpha/include/asm/xor.h
new file mode 100644
index 000000000..e0de0c233
--- /dev/null
+++ b/arch/alpha/include/asm/xor.h
@@ -0,0 +1,866 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * include/asm-alpha/xor.h
+ *
+ * Optimized RAID-5 checksumming functions for alpha EV5 and EV6
+ */
+
+extern void
+xor_alpha_2(unsigned long bytes, unsigned long * __restrict p1,
+	    const unsigned long * __restrict p2);
+extern void
+xor_alpha_3(unsigned long bytes, unsigned long * __restrict p1,
+	    const unsigned long * __restrict p2,
+	    const unsigned long * __restrict p3);
+extern void
+xor_alpha_4(unsigned long bytes, unsigned long * __restrict p1,
+	    const unsigned long * __restrict p2,
+	    const unsigned long * __restrict p3,
+	    const unsigned long * __restrict p4);
+extern void
+xor_alpha_5(unsigned long bytes, unsigned long * __restrict p1,
+	    const unsigned long * __restrict p2,
+	    const unsigned long * __restrict p3,
+	    const unsigned long * __restrict p4,
+	    const unsigned long * __restrict p5);
+
+extern void
+xor_alpha_prefetch_2(unsigned long bytes, unsigned long * __restrict p1,
+		     const unsigned long * __restrict p2);
+extern void
+xor_alpha_prefetch_3(unsigned long bytes, unsigned long * __restrict p1,
+		     const unsigned long * __restrict p2,
+		     const unsigned long * __restrict p3);
+extern void
+xor_alpha_prefetch_4(unsigned long bytes, unsigned long * __restrict p1,
+		     const unsigned long * __restrict p2,
+		     const unsigned long * __restrict p3,
+		     const unsigned long * __restrict p4);
+extern void
+xor_alpha_prefetch_5(unsigned long bytes, unsigned long * __restrict p1,
+		     const unsigned long * __restrict p2,
+		     const unsigned long * __restrict p3,
+		     const unsigned long * __restrict p4,
+		     const unsigned long * __restrict p5);
+
+asm("								\n\
+	.text							\n\
+	.align 3						\n\
+	.ent xor_alpha_2					\n\
+xor_alpha_2:							\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+	.align 4						\n\
+2:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,8($17)						\n\
+	ldq $3,8($18)						\n\
+								\n\
+	ldq $4,16($17)						\n\
+	ldq $5,16($18)						\n\
+	ldq $6,24($17)						\n\
+	ldq $7,24($18)						\n\
+								\n\
+	ldq $19,32($17)						\n\
+	ldq $20,32($18)						\n\
+	ldq $21,40($17)						\n\
+	ldq $22,40($18)						\n\
+								\n\
+	ldq $23,48($17)						\n\
+	ldq $24,48($18)						\n\
+	ldq $25,56($17)						\n\
+	xor $0,$1,$0		# 7 cycles from $1 load		\n\
+								\n\
+	ldq $27,56($18)						\n\
+	xor $2,$3,$2						\n\
+	stq $0,0($17)						\n\
+	xor $4,$5,$4						\n\
+								\n\
+	stq $2,8($17)						\n\
+	xor $6,$7,$6						\n\
+	stq $4,16($17)						\n\
+	xor $19,$20,$19						\n\
+								\n\
+	stq $6,24($17)						\n\
+	xor $21,$22,$21						\n\
+	stq $19,32($17)						\n\
+	xor $23,$24,$23						\n\
+								\n\
+	stq $21,40($17)						\n\
+	xor $25,$27,$25						\n\
+	stq $23,48($17)						\n\
+	subq $16,1,$16						\n\
+								\n\
+	stq $25,56($17)						\n\
+	addq $17,64,$17						\n\
+	addq $18,64,$18						\n\
+	bgt $16,2b						\n\
+								\n\
+	ret							\n\
+	.end xor_alpha_2					\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_3					\n\
+xor_alpha_3:							\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+	.align 4						\n\
+3:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,8($17)						\n\
+								\n\
+	ldq $4,8($18)						\n\
+	ldq $6,16($17)						\n\
+	ldq $7,16($18)						\n\
+	ldq $21,24($17)						\n\
+								\n\
+	ldq $22,24($18)						\n\
+	ldq $24,32($17)						\n\
+	ldq $25,32($18)						\n\
+	ldq $5,8($19)						\n\
+								\n\
+	ldq $20,16($19)						\n\
+	ldq $23,24($19)						\n\
+	ldq $27,32($19)						\n\
+	nop							\n\
+								\n\
+	xor $0,$1,$1		# 8 cycles from $0 load		\n\
+	xor $3,$4,$4		# 6 cycles from $4 load		\n\
+	xor $6,$7,$7		# 6 cycles from $7 load		\n\
+	xor $21,$22,$22		# 5 cycles from $22 load	\n\
+								\n\
+	xor $1,$2,$2		# 9 cycles from $2 load		\n\
+	xor $24,$25,$25		# 5 cycles from $25 load	\n\
+	stq $2,0($17)						\n\
+	xor $4,$5,$5		# 6 cycles from $5 load		\n\
+								\n\
+	stq $5,8($17)						\n\
+	xor $7,$20,$20		# 7 cycles from $20 load	\n\
+	stq $20,16($17)						\n\
+	xor $22,$23,$23		# 7 cycles from $23 load	\n\
+								\n\
+	stq $23,24($17)						\n\
+	xor $25,$27,$27		# 7 cycles from $27 load	\n\
+	stq $27,32($17)						\n\
+	nop							\n\
+								\n\
+	ldq $0,40($17)						\n\
+	ldq $1,40($18)						\n\
+	ldq $3,48($17)						\n\
+	ldq $4,48($18)						\n\
+								\n\
+	ldq $6,56($17)						\n\
+	ldq $7,56($18)						\n\
+	ldq $2,40($19)						\n\
+	ldq $5,48($19)						\n\
+								\n\
+	ldq $20,56($19)						\n\
+	xor $0,$1,$1		# 4 cycles from $1 load		\n\
+	xor $3,$4,$4		# 5 cycles from $4 load		\n\
+	xor $6,$7,$7		# 5 cycles from $7 load		\n\
+								\n\
+	xor $1,$2,$2		# 4 cycles from $2 load		\n\
+	xor $4,$5,$5		# 5 cycles from $5 load		\n\
+	stq $2,40($17)						\n\
+	xor $7,$20,$20		# 4 cycles from $20 load	\n\
+								\n\
+	stq $5,48($17)						\n\
+	subq $16,1,$16						\n\
+	stq $20,56($17)						\n\
+	addq $19,64,$19						\n\
+								\n\
+	addq $18,64,$18						\n\
+	addq $17,64,$17						\n\
+	bgt $16,3b						\n\
+	ret							\n\
+	.end xor_alpha_3					\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_4					\n\
+xor_alpha_4:							\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+	.align 4						\n\
+4:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,0($20)						\n\
+								\n\
+	ldq $4,8($17)						\n\
+	ldq $5,8($18)						\n\
+	ldq $6,8($19)						\n\
+	ldq $7,8($20)						\n\
+								\n\
+	ldq $21,16($17)						\n\
+	ldq $22,16($18)						\n\
+	ldq $23,16($19)						\n\
+	ldq $24,16($20)						\n\
+								\n\
+	ldq $25,24($17)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+	ldq $27,24($18)						\n\
+	xor $2,$3,$3		# 6 cycles from $3 load		\n\
+								\n\
+	ldq $0,24($19)						\n\
+	xor $1,$3,$3						\n\
+	ldq $1,24($20)						\n\
+	xor $4,$5,$5		# 7 cycles from $5 load		\n\
+								\n\
+	stq $3,0($17)						\n\
+	xor $6,$7,$7						\n\
+	xor $21,$22,$22		# 7 cycles from $22 load	\n\
+	xor $5,$7,$7						\n\
+								\n\
+	stq $7,8($17)						\n\
+	xor $23,$24,$24		# 7 cycles from $24 load	\n\
+	ldq $2,32($17)						\n\
+	xor $22,$24,$24						\n\
+								\n\
+	ldq $3,32($18)						\n\
+	ldq $4,32($19)						\n\
+	ldq $5,32($20)						\n\
+	xor $25,$27,$27		# 8 cycles from $27 load	\n\
+								\n\
+	ldq $6,40($17)						\n\
+	ldq $7,40($18)						\n\
+	ldq $21,40($19)						\n\
+	ldq $22,40($20)						\n\
+								\n\
+	stq $24,16($17)						\n\
+	xor $0,$1,$1		# 9 cycles from $1 load		\n\
+	xor $2,$3,$3		# 5 cycles from $3 load		\n\
+	xor $27,$1,$1						\n\
+								\n\
+	stq $1,24($17)						\n\
+	xor $4,$5,$5		# 5 cycles from $5 load		\n\
+	ldq $23,48($17)						\n\
+	ldq $24,48($18)						\n\
+								\n\
+	ldq $25,48($19)						\n\
+	xor $3,$5,$5						\n\
+	ldq $27,48($20)						\n\
+	ldq $0,56($17)						\n\
+								\n\
+	ldq $1,56($18)						\n\
+	ldq $2,56($19)						\n\
+	xor $6,$7,$7		# 8 cycles from $6 load		\n\
+	ldq $3,56($20)						\n\
+								\n\
+	stq $5,32($17)						\n\
+	xor $21,$22,$22		# 8 cycles from $22 load	\n\
+	xor $7,$22,$22						\n\
+	xor $23,$24,$24		# 5 cycles from $24 load	\n\
+								\n\
+	stq $22,40($17)						\n\
+	xor $25,$27,$27		# 5 cycles from $27 load	\n\
+	xor $24,$27,$27						\n\
+	xor $0,$1,$1		# 5 cycles from $1 load		\n\
+								\n\
+	stq $27,48($17)						\n\
+	xor $2,$3,$3		# 4 cycles from $3 load		\n\
+	xor $1,$3,$3						\n\
+	subq $16,1,$16						\n\
+								\n\
+	stq $3,56($17)						\n\
+	addq $20,64,$20						\n\
+	addq $19,64,$19						\n\
+	addq $18,64,$18						\n\
+								\n\
+	addq $17,64,$17						\n\
+	bgt $16,4b						\n\
+	ret							\n\
+	.end xor_alpha_4					\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_5					\n\
+xor_alpha_5:							\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+	.align 4						\n\
+5:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,0($20)						\n\
+								\n\
+	ldq $4,0($21)						\n\
+	ldq $5,8($17)						\n\
+	ldq $6,8($18)						\n\
+	ldq $7,8($19)						\n\
+								\n\
+	ldq $22,8($20)						\n\
+	ldq $23,8($21)						\n\
+	ldq $24,16($17)						\n\
+	ldq $25,16($18)						\n\
+								\n\
+	ldq $27,16($19)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+	ldq $28,16($20)						\n\
+	xor $2,$3,$3		# 6 cycles from $3 load		\n\
+								\n\
+	ldq $0,16($21)						\n\
+	xor $1,$3,$3						\n\
+	ldq $1,24($17)						\n\
+	xor $3,$4,$4		# 7 cycles from $4 load		\n\
+								\n\
+	stq $4,0($17)						\n\
+	xor $5,$6,$6		# 7 cycles from $6 load		\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	xor $6,$23,$23		# 7 cycles from $23 load	\n\
+								\n\
+	ldq $2,24($18)						\n\
+	xor $22,$23,$23						\n\
+	ldq $3,24($19)						\n\
+	xor $24,$25,$25		# 8 cycles from $25 load	\n\
+								\n\
+	stq $23,8($17)						\n\
+	xor $25,$27,$27		# 8 cycles from $27 load	\n\
+	ldq $4,24($20)						\n\
+	xor $28,$0,$0		# 7 cycles from $0 load		\n\
+								\n\
+	ldq $5,24($21)						\n\
+	xor $27,$0,$0						\n\
+	ldq $6,32($17)						\n\
+	ldq $7,32($18)						\n\
+								\n\
+	stq $0,16($17)						\n\
+	xor $1,$2,$2		# 6 cycles from $2 load		\n\
+	ldq $22,32($19)						\n\
+	xor $3,$4,$4		# 4 cycles from $4 load		\n\
+								\n\
+	ldq $23,32($20)						\n\
+	xor $2,$4,$4						\n\
+	ldq $24,32($21)						\n\
+	ldq $25,40($17)						\n\
+								\n\
+	ldq $27,40($18)						\n\
+	ldq $28,40($19)						\n\
+	ldq $0,40($20)						\n\
+	xor $4,$5,$5		# 7 cycles from $5 load		\n\
+								\n\
+	stq $5,24($17)						\n\
+	xor $6,$7,$7		# 7 cycles from $7 load		\n\
+	ldq $1,40($21)						\n\
+	ldq $2,48($17)						\n\
+								\n\
+	ldq $3,48($18)						\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	ldq $4,48($19)						\n\
+	xor $23,$24,$24		# 6 cycles from $24 load	\n\
+								\n\
+	ldq $5,48($20)						\n\
+	xor $22,$24,$24						\n\
+	ldq $6,48($21)						\n\
+	xor $25,$27,$27		# 7 cycles from $27 load	\n\
+								\n\
+	stq $24,32($17)						\n\
+	xor $27,$28,$28		# 8 cycles from $28 load	\n\
+	ldq $7,56($17)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+								\n\
+	ldq $22,56($18)						\n\
+	ldq $23,56($19)						\n\
+	ldq $24,56($20)						\n\
+	ldq $25,56($21)						\n\
+								\n\
+	xor $28,$1,$1						\n\
+	xor $2,$3,$3		# 9 cycles from $3 load		\n\
+	xor $3,$4,$4		# 9 cycles from $4 load		\n\
+	xor $5,$6,$6		# 8 cycles from $6 load		\n\
+								\n\
+	stq $1,40($17)						\n\
+	xor $4,$6,$6						\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	xor $23,$24,$24		# 6 cycles from $24 load	\n\
+								\n\
+	stq $6,48($17)						\n\
+	xor $22,$24,$24						\n\
+	subq $16,1,$16						\n\
+	xor $24,$25,$25		# 8 cycles from $25 load	\n\
+								\n\
+	stq $25,56($17)						\n\
+	addq $21,64,$21						\n\
+	addq $20,64,$20						\n\
+	addq $19,64,$19						\n\
+								\n\
+	addq $18,64,$18						\n\
+	addq $17,64,$17						\n\
+	bgt $16,5b						\n\
+	ret							\n\
+	.end xor_alpha_5					\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_prefetch_2				\n\
+xor_alpha_prefetch_2:						\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+								\n\
+	ldq $31, 0($17)						\n\
+	ldq $31, 0($18)						\n\
+								\n\
+	ldq $31, 64($17)					\n\
+	ldq $31, 64($18)					\n\
+								\n\
+	ldq $31, 128($17)					\n\
+	ldq $31, 128($18)					\n\
+								\n\
+	ldq $31, 192($17)					\n\
+	ldq $31, 192($18)					\n\
+	.align 4						\n\
+2:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,8($17)						\n\
+	ldq $3,8($18)						\n\
+								\n\
+	ldq $4,16($17)						\n\
+	ldq $5,16($18)						\n\
+	ldq $6,24($17)						\n\
+	ldq $7,24($18)						\n\
+								\n\
+	ldq $19,32($17)						\n\
+	ldq $20,32($18)						\n\
+	ldq $21,40($17)						\n\
+	ldq $22,40($18)						\n\
+								\n\
+	ldq $23,48($17)						\n\
+	ldq $24,48($18)						\n\
+	ldq $25,56($17)						\n\
+	ldq $27,56($18)						\n\
+								\n\
+	ldq $31,256($17)					\n\
+	xor $0,$1,$0		# 8 cycles from $1 load		\n\
+	ldq $31,256($18)					\n\
+	xor $2,$3,$2						\n\
+								\n\
+	stq $0,0($17)						\n\
+	xor $4,$5,$4						\n\
+	stq $2,8($17)						\n\
+	xor $6,$7,$6						\n\
+								\n\
+	stq $4,16($17)						\n\
+	xor $19,$20,$19						\n\
+	stq $6,24($17)						\n\
+	xor $21,$22,$21						\n\
+								\n\
+	stq $19,32($17)						\n\
+	xor $23,$24,$23						\n\
+	stq $21,40($17)						\n\
+	xor $25,$27,$25						\n\
+								\n\
+	stq $23,48($17)						\n\
+	subq $16,1,$16						\n\
+	stq $25,56($17)						\n\
+	addq $17,64,$17						\n\
+								\n\
+	addq $18,64,$18						\n\
+	bgt $16,2b						\n\
+	ret							\n\
+	.end xor_alpha_prefetch_2				\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_prefetch_3				\n\
+xor_alpha_prefetch_3:						\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+								\n\
+	ldq $31, 0($17)						\n\
+	ldq $31, 0($18)						\n\
+	ldq $31, 0($19)						\n\
+								\n\
+	ldq $31, 64($17)					\n\
+	ldq $31, 64($18)					\n\
+	ldq $31, 64($19)					\n\
+								\n\
+	ldq $31, 128($17)					\n\
+	ldq $31, 128($18)					\n\
+	ldq $31, 128($19)					\n\
+								\n\
+	ldq $31, 192($17)					\n\
+	ldq $31, 192($18)					\n\
+	ldq $31, 192($19)					\n\
+	.align 4						\n\
+3:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,8($17)						\n\
+								\n\
+	ldq $4,8($18)						\n\
+	ldq $6,16($17)						\n\
+	ldq $7,16($18)						\n\
+	ldq $21,24($17)						\n\
+								\n\
+	ldq $22,24($18)						\n\
+	ldq $24,32($17)						\n\
+	ldq $25,32($18)						\n\
+	ldq $5,8($19)						\n\
+								\n\
+	ldq $20,16($19)						\n\
+	ldq $23,24($19)						\n\
+	ldq $27,32($19)						\n\
+	nop							\n\
+								\n\
+	xor $0,$1,$1		# 8 cycles from $0 load		\n\
+	xor $3,$4,$4		# 7 cycles from $4 load		\n\
+	xor $6,$7,$7		# 6 cycles from $7 load		\n\
+	xor $21,$22,$22		# 5 cycles from $22 load	\n\
+								\n\
+	xor $1,$2,$2		# 9 cycles from $2 load		\n\
+	xor $24,$25,$25		# 5 cycles from $25 load	\n\
+	stq $2,0($17)						\n\
+	xor $4,$5,$5		# 6 cycles from $5 load		\n\
+								\n\
+	stq $5,8($17)						\n\
+	xor $7,$20,$20		# 7 cycles from $20 load	\n\
+	stq $20,16($17)						\n\
+	xor $22,$23,$23		# 7 cycles from $23 load	\n\
+								\n\
+	stq $23,24($17)						\n\
+	xor $25,$27,$27		# 7 cycles from $27 load	\n\
+	stq $27,32($17)						\n\
+	nop							\n\
+								\n\
+	ldq $0,40($17)						\n\
+	ldq $1,40($18)						\n\
+	ldq $3,48($17)						\n\
+	ldq $4,48($18)						\n\
+								\n\
+	ldq $6,56($17)						\n\
+	ldq $7,56($18)						\n\
+	ldq $2,40($19)						\n\
+	ldq $5,48($19)						\n\
+								\n\
+	ldq $20,56($19)						\n\
+	ldq $31,256($17)					\n\
+	ldq $31,256($18)					\n\
+	ldq $31,256($19)					\n\
+								\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+	xor $3,$4,$4		# 5 cycles from $4 load		\n\
+	xor $6,$7,$7		# 5 cycles from $7 load		\n\
+	xor $1,$2,$2		# 4 cycles from $2 load		\n\
+								\n\
+	xor $4,$5,$5		# 5 cycles from $5 load		\n\
+	xor $7,$20,$20		# 4 cycles from $20 load	\n\
+	stq $2,40($17)						\n\
+	subq $16,1,$16						\n\
+								\n\
+	stq $5,48($17)						\n\
+	addq $19,64,$19						\n\
+	stq $20,56($17)						\n\
+	addq $18,64,$18						\n\
+								\n\
+	addq $17,64,$17						\n\
+	bgt $16,3b						\n\
+	ret							\n\
+	.end xor_alpha_prefetch_3				\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_prefetch_4				\n\
+xor_alpha_prefetch_4:						\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+								\n\
+	ldq $31, 0($17)						\n\
+	ldq $31, 0($18)						\n\
+	ldq $31, 0($19)						\n\
+	ldq $31, 0($20)						\n\
+								\n\
+	ldq $31, 64($17)					\n\
+	ldq $31, 64($18)					\n\
+	ldq $31, 64($19)					\n\
+	ldq $31, 64($20)					\n\
+								\n\
+	ldq $31, 128($17)					\n\
+	ldq $31, 128($18)					\n\
+	ldq $31, 128($19)					\n\
+	ldq $31, 128($20)					\n\
+								\n\
+	ldq $31, 192($17)					\n\
+	ldq $31, 192($18)					\n\
+	ldq $31, 192($19)					\n\
+	ldq $31, 192($20)					\n\
+	.align 4						\n\
+4:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,0($20)						\n\
+								\n\
+	ldq $4,8($17)						\n\
+	ldq $5,8($18)						\n\
+	ldq $6,8($19)						\n\
+	ldq $7,8($20)						\n\
+								\n\
+	ldq $21,16($17)						\n\
+	ldq $22,16($18)						\n\
+	ldq $23,16($19)						\n\
+	ldq $24,16($20)						\n\
+								\n\
+	ldq $25,24($17)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+	ldq $27,24($18)						\n\
+	xor $2,$3,$3		# 6 cycles from $3 load		\n\
+								\n\
+	ldq $0,24($19)						\n\
+	xor $1,$3,$3						\n\
+	ldq $1,24($20)						\n\
+	xor $4,$5,$5		# 7 cycles from $5 load		\n\
+								\n\
+	stq $3,0($17)						\n\
+	xor $6,$7,$7						\n\
+	xor $21,$22,$22		# 7 cycles from $22 load	\n\
+	xor $5,$7,$7						\n\
+								\n\
+	stq $7,8($17)						\n\
+	xor $23,$24,$24		# 7 cycles from $24 load	\n\
+	ldq $2,32($17)						\n\
+	xor $22,$24,$24						\n\
+								\n\
+	ldq $3,32($18)						\n\
+	ldq $4,32($19)						\n\
+	ldq $5,32($20)						\n\
+	xor $25,$27,$27		# 8 cycles from $27 load	\n\
+								\n\
+	ldq $6,40($17)						\n\
+	ldq $7,40($18)						\n\
+	ldq $21,40($19)						\n\
+	ldq $22,40($20)						\n\
+								\n\
+	stq $24,16($17)						\n\
+	xor $0,$1,$1		# 9 cycles from $1 load		\n\
+	xor $2,$3,$3		# 5 cycles from $3 load		\n\
+	xor $27,$1,$1						\n\
+								\n\
+	stq $1,24($17)						\n\
+	xor $4,$5,$5		# 5 cycles from $5 load		\n\
+	ldq $23,48($17)						\n\
+	xor $3,$5,$5						\n\
+								\n\
+	ldq $24,48($18)						\n\
+	ldq $25,48($19)						\n\
+	ldq $27,48($20)						\n\
+	ldq $0,56($17)						\n\
+								\n\
+	ldq $1,56($18)						\n\
+	ldq $2,56($19)						\n\
+	ldq $3,56($20)						\n\
+	xor $6,$7,$7		# 8 cycles from $6 load		\n\
+								\n\
+	ldq $31,256($17)					\n\
+	xor $21,$22,$22		# 8 cycles from $22 load	\n\
+	ldq $31,256($18)					\n\
+	xor $7,$22,$22						\n\
+								\n\
+	ldq $31,256($19)					\n\
+	xor $23,$24,$24		# 6 cycles from $24 load	\n\
+	ldq $31,256($20)					\n\
+	xor $25,$27,$27		# 6 cycles from $27 load	\n\
+								\n\
+	stq $5,32($17)						\n\
+	xor $24,$27,$27						\n\
+	xor $0,$1,$1		# 7 cycles from $1 load		\n\
+	xor $2,$3,$3		# 6 cycles from $3 load		\n\
+								\n\
+	stq $22,40($17)						\n\
+	xor $1,$3,$3						\n\
+	stq $27,48($17)						\n\
+	subq $16,1,$16						\n\
+								\n\
+	stq $3,56($17)						\n\
+	addq $20,64,$20						\n\
+	addq $19,64,$19						\n\
+	addq $18,64,$18						\n\
+								\n\
+	addq $17,64,$17						\n\
+	bgt $16,4b						\n\
+	ret							\n\
+	.end xor_alpha_prefetch_4				\n\
+								\n\
+	.align 3						\n\
+	.ent xor_alpha_prefetch_5				\n\
+xor_alpha_prefetch_5:						\n\
+	.prologue 0						\n\
+	srl $16, 6, $16						\n\
+								\n\
+	ldq $31, 0($17)						\n\
+	ldq $31, 0($18)						\n\
+	ldq $31, 0($19)						\n\
+	ldq $31, 0($20)						\n\
+	ldq $31, 0($21)						\n\
+								\n\
+	ldq $31, 64($17)					\n\
+	ldq $31, 64($18)					\n\
+	ldq $31, 64($19)					\n\
+	ldq $31, 64($20)					\n\
+	ldq $31, 64($21)					\n\
+								\n\
+	ldq $31, 128($17)					\n\
+	ldq $31, 128($18)					\n\
+	ldq $31, 128($19)					\n\
+	ldq $31, 128($20)					\n\
+	ldq $31, 128($21)					\n\
+								\n\
+	ldq $31, 192($17)					\n\
+	ldq $31, 192($18)					\n\
+	ldq $31, 192($19)					\n\
+	ldq $31, 192($20)					\n\
+	ldq $31, 192($21)					\n\
+	.align 4						\n\
+5:								\n\
+	ldq $0,0($17)						\n\
+	ldq $1,0($18)						\n\
+	ldq $2,0($19)						\n\
+	ldq $3,0($20)						\n\
+								\n\
+	ldq $4,0($21)						\n\
+	ldq $5,8($17)						\n\
+	ldq $6,8($18)						\n\
+	ldq $7,8($19)						\n\
+								\n\
+	ldq $22,8($20)						\n\
+	ldq $23,8($21)						\n\
+	ldq $24,16($17)						\n\
+	ldq $25,16($18)						\n\
+								\n\
+	ldq $27,16($19)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+	ldq $28,16($20)						\n\
+	xor $2,$3,$3		# 6 cycles from $3 load		\n\
+								\n\
+	ldq $0,16($21)						\n\
+	xor $1,$3,$3						\n\
+	ldq $1,24($17)						\n\
+	xor $3,$4,$4		# 7 cycles from $4 load		\n\
+								\n\
+	stq $4,0($17)						\n\
+	xor $5,$6,$6		# 7 cycles from $6 load		\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	xor $6,$23,$23		# 7 cycles from $23 load	\n\
+								\n\
+	ldq $2,24($18)						\n\
+	xor $22,$23,$23						\n\
+	ldq $3,24($19)						\n\
+	xor $24,$25,$25		# 8 cycles from $25 load	\n\
+								\n\
+	stq $23,8($17)						\n\
+	xor $25,$27,$27		# 8 cycles from $27 load	\n\
+	ldq $4,24($20)						\n\
+	xor $28,$0,$0		# 7 cycles from $0 load		\n\
+								\n\
+	ldq $5,24($21)						\n\
+	xor $27,$0,$0						\n\
+	ldq $6,32($17)						\n\
+	ldq $7,32($18)						\n\
+								\n\
+	stq $0,16($17)						\n\
+	xor $1,$2,$2		# 6 cycles from $2 load		\n\
+	ldq $22,32($19)						\n\
+	xor $3,$4,$4		# 4 cycles from $4 load		\n\
+								\n\
+	ldq $23,32($20)						\n\
+	xor $2,$4,$4						\n\
+	ldq $24,32($21)						\n\
+	ldq $25,40($17)						\n\
+								\n\
+	ldq $27,40($18)						\n\
+	ldq $28,40($19)						\n\
+	ldq $0,40($20)						\n\
+	xor $4,$5,$5		# 7 cycles from $5 load		\n\
+								\n\
+	stq $5,24($17)						\n\
+	xor $6,$7,$7		# 7 cycles from $7 load		\n\
+	ldq $1,40($21)						\n\
+	ldq $2,48($17)						\n\
+								\n\
+	ldq $3,48($18)						\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	ldq $4,48($19)						\n\
+	xor $23,$24,$24		# 6 cycles from $24 load	\n\
+								\n\
+	ldq $5,48($20)						\n\
+	xor $22,$24,$24						\n\
+	ldq $6,48($21)						\n\
+	xor $25,$27,$27		# 7 cycles from $27 load	\n\
+								\n\
+	stq $24,32($17)						\n\
+	xor $27,$28,$28		# 8 cycles from $28 load	\n\
+	ldq $7,56($17)						\n\
+	xor $0,$1,$1		# 6 cycles from $1 load		\n\
+								\n\
+	ldq $22,56($18)						\n\
+	ldq $23,56($19)						\n\
+	ldq $24,56($20)						\n\
+	ldq $25,56($21)						\n\
+								\n\
+	ldq $31,256($17)					\n\
+	xor $28,$1,$1						\n\
+	ldq $31,256($18)					\n\
+	xor $2,$3,$3		# 9 cycles from $3 load		\n\
+								\n\
+	ldq $31,256($19)					\n\
+	xor $3,$4,$4		# 9 cycles from $4 load		\n\
+	ldq $31,256($20)					\n\
+	xor $5,$6,$6		# 8 cycles from $6 load		\n\
+								\n\
+	stq $1,40($17)						\n\
+	xor $4,$6,$6						\n\
+	xor $7,$22,$22		# 7 cycles from $22 load	\n\
+	xor $23,$24,$24		# 6 cycles from $24 load	\n\
+								\n\
+	stq $6,48($17)						\n\
+	xor $22,$24,$24						\n\
+	ldq $31,256($21)					\n\
+	xor $24,$25,$25		# 8 cycles from $25 load	\n\
+								\n\
+	stq $25,56($17)						\n\
+	subq $16,1,$16						\n\
+	addq $21,64,$21						\n\
+	addq $20,64,$20						\n\
+								\n\
+	addq $19,64,$19						\n\
+	addq $18,64,$18						\n\
+	addq $17,64,$17						\n\
+	bgt $16,5b						\n\
+								\n\
+	ret							\n\
+	.end xor_alpha_prefetch_5				\n\
+");
+
+static struct xor_block_template xor_block_alpha = {
+	.name	= "alpha",
+	.do_2	= xor_alpha_2,
+	.do_3	= xor_alpha_3,
+	.do_4	= xor_alpha_4,
+	.do_5	= xor_alpha_5,
+};
+
+static struct xor_block_template xor_block_alpha_prefetch = {
+	.name	= "alpha prefetch",
+	.do_2	= xor_alpha_prefetch_2,
+	.do_3	= xor_alpha_prefetch_3,
+	.do_4	= xor_alpha_prefetch_4,
+	.do_5	= xor_alpha_prefetch_5,
+};
+
+/* For grins, also test the generic routines.  */
+#include <asm-generic/xor.h>
+
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES				\
+	do {						\
+		xor_speed(&xor_block_8regs);		\
+		xor_speed(&xor_block_32regs);		\
+		xor_speed(&xor_block_alpha);		\
+		xor_speed(&xor_block_alpha_prefetch);	\
+	} while (0)
+
+/* Force the use of alpha_prefetch if EV6, as it is significantly
+   faster in the cold cache case.  */
+#define XOR_SELECT_TEMPLATE(FASTEST) \
+	(implver() == IMPLVER_EV6 ? &xor_block_alpha_prefetch : FASTEST)
diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild
new file mode 100644
index 000000000..b97c552db
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/Kbuild
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+generated-y += unistd_32.h
diff --git a/arch/alpha/include/uapi/asm/a.out.h b/arch/alpha/include/uapi/asm/a.out.h
new file mode 100644
index 000000000..7d692df04
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/a.out.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ALPHA_A_OUT_H__
+#define _UAPI__ALPHA_A_OUT_H__
+
+#include <linux/types.h>
+
+/*
+ * OSF/1 ECOFF header structs.  ECOFF files consist of:
+ * 	- a file header (struct filehdr),
+ *	- an a.out header (struct aouthdr),
+ *	- one or more section headers (struct scnhdr). 
+ *	  The filhdr's "f_nscns" field contains the
+ *	  number of section headers.
+ */
+
+struct filehdr
+{
+	/* OSF/1 "file" header */
+	__u16 f_magic, f_nscns;
+	__u32 f_timdat;
+	__u64 f_symptr;
+	__u32 f_nsyms;
+	__u16 f_opthdr, f_flags;
+};
+
+struct aouthdr
+{
+	__u64 info;		/* after that it looks quite normal.. */
+	__u64 tsize;
+	__u64 dsize;
+	__u64 bsize;
+	__u64 entry;
+	__u64 text_start;	/* with a few additions that actually make sense */
+	__u64 data_start;
+	__u64 bss_start;
+	__u32 gprmask, fprmask;	/* bitmask of general & floating point regs used in binary */
+	__u64 gpvalue;
+};
+
+struct scnhdr
+{
+	char	s_name[8];
+	__u64	s_paddr;
+	__u64	s_vaddr;
+	__u64	s_size;
+	__u64	s_scnptr;
+	__u64	s_relptr;
+	__u64	s_lnnoptr;
+	__u16	s_nreloc;
+	__u16	s_nlnno;
+	__u32	s_flags;
+};
+
+struct exec
+{
+	/* OSF/1 "file" header */
+	struct filehdr		fh;
+	struct aouthdr		ah;
+};
+
+/*
+ * Define's so that the kernel exec code can access the a.out header
+ * fields...
+ */
+#define	a_info		ah.info
+#define	a_text		ah.tsize
+#define a_data		ah.dsize
+#define a_bss		ah.bsize
+#define a_entry		ah.entry
+#define a_textstart	ah.text_start
+#define	a_datastart	ah.data_start
+#define	a_bssstart	ah.bss_start
+#define	a_gprmask	ah.gprmask
+#define a_fprmask	ah.fprmask
+#define a_gpvalue	ah.gpvalue
+
+#define N_TXTADDR(x) ((x).a_textstart)
+#define N_DATADDR(x) ((x).a_datastart)
+#define N_BSSADDR(x) ((x).a_bssstart)
+#define N_DRSIZE(x) 0
+#define N_TRSIZE(x) 0
+#define N_SYMSIZE(x) 0
+
+#define AOUTHSZ		sizeof(struct aouthdr)
+#define SCNHSZ		sizeof(struct scnhdr)
+#define SCNROUND	16
+
+#define N_TXTOFF(x) \
+  ((long) N_MAGIC(x) == ZMAGIC ? 0 : \
+   (sizeof(struct exec) + (x).fh.f_nscns*SCNHSZ + SCNROUND - 1) & ~(SCNROUND - 1))
+
+#endif /* _UAPI__ALPHA_A_OUT_H__ */
diff --git a/arch/alpha/include/uapi/asm/auxvec.h b/arch/alpha/include/uapi/asm/auxvec.h
new file mode 100644
index 000000000..57cae8780
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/auxvec.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ASM_ALPHA_AUXVEC_H
+#define __ASM_ALPHA_AUXVEC_H
+
+/* Reserve these numbers for any future use of a VDSO.  */
+#if 0
+#define AT_SYSINFO		32
+#define AT_SYSINFO_EHDR		33
+#endif
+
+/* More complete cache descriptions than AT_[DIU]CACHEBSIZE.  If the
+   value is -1, then the cache doesn't exist.  Otherwise:
+
+      bit 0-3:	  Cache set-associativity; 0 means fully associative.
+      bit 4-7:	  Log2 of cacheline size.
+      bit 8-31:	  Size of the entire cache >> 8.
+      bit 32-63:  Reserved.
+*/
+
+#define AT_L1I_CACHESHAPE	34
+#define AT_L1D_CACHESHAPE	35
+#define AT_L2_CACHESHAPE	36
+#define AT_L3_CACHESHAPE	37
+
+#define AT_VECTOR_SIZE_ARCH 4 /* entries in ARCH_DLINFO */
+
+#endif /* __ASM_ALPHA_AUXVEC_H */
diff --git a/arch/alpha/include/uapi/asm/bitsperlong.h b/arch/alpha/include/uapi/asm/bitsperlong.h
new file mode 100644
index 000000000..6c5bf7d03
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/bitsperlong.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ASM_ALPHA_BITSPERLONG_H
+#define __ASM_ALPHA_BITSPERLONG_H
+
+#define __BITS_PER_LONG 64
+
+#include <asm-generic/bitsperlong.h>
+
+#endif /* __ASM_ALPHA_BITSPERLONG_H */
diff --git a/arch/alpha/include/uapi/asm/byteorder.h b/arch/alpha/include/uapi/asm/byteorder.h
new file mode 100644
index 000000000..efa9b51b4
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/byteorder.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_BYTEORDER_H
+#define _ALPHA_BYTEORDER_H
+
+#include <linux/byteorder/little_endian.h>
+
+#endif /* _ALPHA_BYTEORDER_H */
diff --git a/arch/alpha/include/uapi/asm/compiler.h b/arch/alpha/include/uapi/asm/compiler.h
new file mode 100644
index 000000000..0e00c0e13
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/compiler.h
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ALPHA_COMPILER_H
+#define _UAPI__ALPHA_COMPILER_H
+
+/* 
+ * Herein are macros we use when describing various patterns we want to GCC.
+ * In all cases we can get better schedules out of the compiler if we hide
+ * as little as possible inside inline assembly.  However, we want to be
+ * able to know what we'll get out before giving up inline assembly.  Thus
+ * these tests and macros.
+ */
+
+#if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
+# define __kernel_insbl(val, shift)	__builtin_alpha_insbl(val, shift)
+# define __kernel_inswl(val, shift)	__builtin_alpha_inswl(val, shift)
+# define __kernel_insql(val, shift)	__builtin_alpha_insql(val, shift)
+# define __kernel_inslh(val, shift)	__builtin_alpha_inslh(val, shift)
+# define __kernel_extbl(val, shift)	__builtin_alpha_extbl(val, shift)
+# define __kernel_extwl(val, shift)	__builtin_alpha_extwl(val, shift)
+# define __kernel_cmpbge(a, b)		__builtin_alpha_cmpbge(a, b)
+#else
+# define __kernel_insbl(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("insbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_inswl(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("inswl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_insql(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("insql %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_inslh(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("inslh %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_extbl(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_extwl(val, shift)					\
+  ({ unsigned long __kir;						\
+     __asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\
+     __kir; })
+# define __kernel_cmpbge(a, b)						\
+  ({ unsigned long __kir;						\
+     __asm__("cmpbge %r2,%1,%0" : "=r"(__kir) : "rI"(b), "rJ"(a));	\
+     __kir; })
+#endif
+
+#ifdef __alpha_cix__
+# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
+#  define __kernel_cttz(x)		__builtin_ctzl(x)
+#  define __kernel_ctlz(x)		__builtin_clzl(x)
+#  define __kernel_ctpop(x)		__builtin_popcountl(x)
+# else
+#  define __kernel_cttz(x)						\
+   ({ unsigned long __kir;						\
+      __asm__("cttz %1,%0" : "=r"(__kir) : "r"(x));			\
+      __kir; })
+#  define __kernel_ctlz(x)						\
+   ({ unsigned long __kir;						\
+      __asm__("ctlz %1,%0" : "=r"(__kir) : "r"(x));			\
+      __kir; })
+#  define __kernel_ctpop(x)						\
+   ({ unsigned long __kir;						\
+      __asm__("ctpop %1,%0" : "=r"(__kir) : "r"(x));			\
+      __kir; })
+# endif
+#else
+# define __kernel_cttz(x)						\
+  ({ unsigned long __kir;						\
+     __asm__(".arch ev67; cttz %1,%0" : "=r"(__kir) : "r"(x));		\
+     __kir; })
+# define __kernel_ctlz(x)						\
+  ({ unsigned long __kir;						\
+     __asm__(".arch ev67; ctlz %1,%0" : "=r"(__kir) : "r"(x));		\
+     __kir; })
+# define __kernel_ctpop(x)						\
+  ({ unsigned long __kir;						\
+     __asm__(".arch ev67; ctpop %1,%0" : "=r"(__kir) : "r"(x));		\
+     __kir; })
+#endif
+
+
+/* 
+ * Beginning with EGCS 1.1, GCC defines __alpha_bwx__ when the BWX 
+ * extension is enabled.  Previous versions did not define anything
+ * we could test during compilation -- too bad, so sad.
+ */
+
+#if defined(__alpha_bwx__)
+#define __kernel_ldbu(mem)	(mem)
+#define __kernel_ldwu(mem)	(mem)
+#define __kernel_stb(val,mem)	((mem) = (val))
+#define __kernel_stw(val,mem)	((mem) = (val))
+#else
+#define __kernel_ldbu(mem)				\
+  ({ unsigned char __kir;				\
+     __asm__(".arch ev56;				\
+	      ldbu %0,%1" : "=r"(__kir) : "m"(mem));	\
+     __kir; })
+#define __kernel_ldwu(mem)				\
+  ({ unsigned short __kir;				\
+     __asm__(".arch ev56;				\
+	      ldwu %0,%1" : "=r"(__kir) : "m"(mem));	\
+     __kir; })
+#define __kernel_stb(val,mem)				\
+  __asm__(".arch ev56;					\
+	   stb %1,%0" : "=m"(mem) : "r"(val))
+#define __kernel_stw(val,mem)				\
+  __asm__(".arch ev56;					\
+	   stw %1,%0" : "=m"(mem) : "r"(val))
+#endif
+
+
+#endif /* _UAPI__ALPHA_COMPILER_H */
diff --git a/arch/alpha/include/uapi/asm/console.h b/arch/alpha/include/uapi/asm/console.h
new file mode 100644
index 000000000..5fcb65300
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/console.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__AXP_CONSOLE_H
+#define _UAPI__AXP_CONSOLE_H
+
+/*
+ * Console callback routine numbers
+ */
+#define CCB_GETC		0x01
+#define CCB_PUTS		0x02
+#define CCB_RESET_TERM		0x03
+#define CCB_SET_TERM_INT	0x04
+#define CCB_SET_TERM_CTL	0x05
+#define CCB_PROCESS_KEYCODE	0x06
+#define CCB_OPEN_CONSOLE	0x07
+#define CCB_CLOSE_CONSOLE	0x08
+
+#define CCB_OPEN		0x10
+#define CCB_CLOSE		0x11
+#define CCB_IOCTL		0x12
+#define CCB_READ		0x13
+#define CCB_WRITE		0x14
+
+#define CCB_SET_ENV		0x20
+#define CCB_RESET_ENV		0x21
+#define CCB_GET_ENV		0x22
+#define CCB_SAVE_ENV		0x23
+
+#define CCB_PSWITCH		0x30
+#define CCB_BIOS_EMUL		0x32
+
+/*
+ * Environment variable numbers
+ */
+#define ENV_AUTO_ACTION		0x01
+#define ENV_BOOT_DEV		0x02
+#define ENV_BOOTDEF_DEV		0x03
+#define ENV_BOOTED_DEV		0x04
+#define ENV_BOOT_FILE		0x05
+#define ENV_BOOTED_FILE		0x06
+#define ENV_BOOT_OSFLAGS	0x07
+#define ENV_BOOTED_OSFLAGS	0x08
+#define ENV_BOOT_RESET		0x09
+#define ENV_DUMP_DEV		0x0A
+#define ENV_ENABLE_AUDIT	0x0B
+#define ENV_LICENSE		0x0C
+#define ENV_CHAR_SET		0x0D
+#define ENV_LANGUAGE		0x0E
+#define ENV_TTY_DEV		0x0F
+
+
+#endif /* _UAPI__AXP_CONSOLE_H */
diff --git a/arch/alpha/include/uapi/asm/errno.h b/arch/alpha/include/uapi/asm/errno.h
new file mode 100644
index 000000000..3d265f6ba
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/errno.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_ERRNO_H
+#define _ALPHA_ERRNO_H
+
+#include <asm-generic/errno-base.h>
+
+#undef	EAGAIN			/* 11 in errno-base.h */
+
+#define	EDEADLK		11	/* Resource deadlock would occur */
+
+#define	EAGAIN		35	/* Try again */
+#define	EWOULDBLOCK	EAGAIN	/* Operation would block */
+#define	EINPROGRESS	36	/* Operation now in progress */
+#define	EALREADY	37	/* Operation already in progress */
+#define	ENOTSOCK	38	/* Socket operation on non-socket */
+#define	EDESTADDRREQ	39	/* Destination address required */
+#define	EMSGSIZE	40	/* Message too long */
+#define	EPROTOTYPE	41	/* Protocol wrong type for socket */
+#define	ENOPROTOOPT	42	/* Protocol not available */
+#define	EPROTONOSUPPORT	43	/* Protocol not supported */
+#define	ESOCKTNOSUPPORT	44	/* Socket type not supported */
+#define	EOPNOTSUPP	45	/* Operation not supported on transport endpoint */
+#define	EPFNOSUPPORT	46	/* Protocol family not supported */
+#define	EAFNOSUPPORT	47	/* Address family not supported by protocol */
+#define	EADDRINUSE	48	/* Address already in use */
+#define	EADDRNOTAVAIL	49	/* Cannot assign requested address */
+#define	ENETDOWN	50	/* Network is down */
+#define	ENETUNREACH	51	/* Network is unreachable */
+#define	ENETRESET	52	/* Network dropped connection because of reset */
+#define	ECONNABORTED	53	/* Software caused connection abort */
+#define	ECONNRESET	54	/* Connection reset by peer */
+#define	ENOBUFS		55	/* No buffer space available */
+#define	EISCONN		56	/* Transport endpoint is already connected */
+#define	ENOTCONN	57	/* Transport endpoint is not connected */
+#define	ESHUTDOWN	58	/* Cannot send after transport endpoint shutdown */
+#define	ETOOMANYREFS	59	/* Too many references: cannot splice */
+#define	ETIMEDOUT	60	/* Connection timed out */
+#define	ECONNREFUSED	61	/* Connection refused */
+#define	ELOOP		62	/* Too many symbolic links encountered */
+#define	ENAMETOOLONG	63	/* File name too long */
+#define	EHOSTDOWN	64	/* Host is down */
+#define	EHOSTUNREACH	65	/* No route to host */
+#define	ENOTEMPTY	66	/* Directory not empty */
+
+#define	EUSERS		68	/* Too many users */
+#define	EDQUOT		69	/* Quota exceeded */
+#define	ESTALE		70	/* Stale file handle */
+#define	EREMOTE		71	/* Object is remote */
+
+#define	ENOLCK		77	/* No record locks available */
+#define	ENOSYS		78	/* Function not implemented */
+
+#define	ENOMSG		80	/* No message of desired type */
+#define	EIDRM		81	/* Identifier removed */
+#define	ENOSR		82	/* Out of streams resources */
+#define	ETIME		83	/* Timer expired */
+#define	EBADMSG		84	/* Not a data message */
+#define	EPROTO		85	/* Protocol error */
+#define	ENODATA		86	/* No data available */
+#define	ENOSTR		87	/* Device not a stream */
+
+#define	ENOPKG		92	/* Package not installed */
+
+#define	EILSEQ		116	/* Illegal byte sequence */
+
+/* The following are just random noise.. */
+#define	ECHRNG		88	/* Channel number out of range */
+#define	EL2NSYNC	89	/* Level 2 not synchronized */
+#define	EL3HLT		90	/* Level 3 halted */
+#define	EL3RST		91	/* Level 3 reset */
+
+#define	ELNRNG		93	/* Link number out of range */
+#define	EUNATCH		94	/* Protocol driver not attached */
+#define	ENOCSI		95	/* No CSI structure available */
+#define	EL2HLT		96	/* Level 2 halted */
+#define	EBADE		97	/* Invalid exchange */
+#define	EBADR		98	/* Invalid request descriptor */
+#define	EXFULL		99	/* Exchange full */
+#define	ENOANO		100	/* No anode */
+#define	EBADRQC		101	/* Invalid request code */
+#define	EBADSLT		102	/* Invalid slot */
+
+#define	EDEADLOCK	EDEADLK
+
+#define	EBFONT		104	/* Bad font file format */
+#define	ENONET		105	/* Machine is not on the network */
+#define	ENOLINK		106	/* Link has been severed */
+#define	EADV		107	/* Advertise error */
+#define	ESRMNT		108	/* Srmount error */
+#define	ECOMM		109	/* Communication error on send */
+#define	EMULTIHOP	110	/* Multihop attempted */
+#define	EDOTDOT		111	/* RFS specific error */
+#define	EOVERFLOW	112	/* Value too large for defined data type */
+#define	ENOTUNIQ	113	/* Name not unique on network */
+#define	EBADFD		114	/* File descriptor in bad state */
+#define	EREMCHG		115	/* Remote address changed */
+
+#define	EUCLEAN		117	/* Structure needs cleaning */
+#define	ENOTNAM		118	/* Not a XENIX named type file */
+#define	ENAVAIL		119	/* No XENIX semaphores available */
+#define	EISNAM		120	/* Is a named type file */
+#define	EREMOTEIO	121	/* Remote I/O error */
+
+#define	ELIBACC		122	/* Can not access a needed shared library */
+#define	ELIBBAD		123	/* Accessing a corrupted shared library */
+#define	ELIBSCN		124	/* .lib section in a.out corrupted */
+#define	ELIBMAX		125	/* Attempting to link in too many shared libraries */
+#define	ELIBEXEC	126	/* Cannot exec a shared library directly */
+#define	ERESTART	127	/* Interrupted system call should be restarted */
+#define	ESTRPIPE	128	/* Streams pipe error */
+
+#define ENOMEDIUM	129	/* No medium found */
+#define EMEDIUMTYPE	130	/* Wrong medium type */
+#define	ECANCELED	131	/* Operation Cancelled */
+#define	ENOKEY		132	/* Required key not available */
+#define	EKEYEXPIRED	133	/* Key has expired */
+#define	EKEYREVOKED	134	/* Key has been revoked */
+#define	EKEYREJECTED	135	/* Key was rejected by service */
+
+/* for robust mutexes */
+#define	EOWNERDEAD	136	/* Owner died */
+#define	ENOTRECOVERABLE	137	/* State not recoverable */
+
+#define	ERFKILL		138	/* Operation not possible due to RF-kill */
+
+#define EHWPOISON	139	/* Memory page has hardware error */
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/fcntl.h b/arch/alpha/include/uapi/asm/fcntl.h
new file mode 100644
index 000000000..50bdc8e8a
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/fcntl.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_FCNTL_H
+#define _ALPHA_FCNTL_H
+
+#define O_CREAT		 01000	/* not fcntl */
+#define O_TRUNC		 02000	/* not fcntl */
+#define O_EXCL		 04000	/* not fcntl */
+#define O_NOCTTY	010000	/* not fcntl */
+
+#define O_NONBLOCK	 00004
+#define O_APPEND	 00010
+#define O_DSYNC		040000	/* used to be O_SYNC, see below */
+#define O_DIRECTORY	0100000	/* must be a directory */
+#define O_NOFOLLOW	0200000 /* don't follow links */
+#define O_LARGEFILE	0400000 /* will be set by the kernel on every open */
+#define O_DIRECT	02000000 /* direct disk access - should check with OSF/1 */
+#define O_NOATIME	04000000
+#define O_CLOEXEC	010000000 /* set close_on_exec */
+/*
+ * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag.  We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics.  It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#define __O_SYNC	020000000
+#define O_SYNC		(__O_SYNC|O_DSYNC)
+
+#define O_PATH		040000000
+#define __O_TMPFILE	0100000000
+
+#define F_GETLK		7
+#define F_SETLK		8
+#define F_SETLKW	9
+
+#define F_SETOWN	5	/*  for sockets. */
+#define F_GETOWN	6	/*  for sockets. */
+#define F_SETSIG	10	/*  for sockets. */
+#define F_GETSIG	11	/*  for sockets. */
+
+/* for posix fcntl() and lockf() */
+#define F_RDLCK		1
+#define F_WRLCK		2
+#define F_UNLCK		8
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK		16	/* or 3 */
+#define F_SHLCK		32	/* or 4 */
+
+#include <asm-generic/fcntl.h>
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/fpu.h b/arch/alpha/include/uapi/asm/fpu.h
new file mode 100644
index 000000000..cea9eafa0
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/fpu.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ASM_ALPHA_FPU_H
+#define _UAPI__ASM_ALPHA_FPU_H
+
+
+/*
+ * Alpha floating-point control register defines:
+ */
+#define FPCR_DNOD	(1UL<<47)	/* denorm INV trap disable */
+#define FPCR_DNZ	(1UL<<48)	/* denorms to zero */
+#define FPCR_INVD	(1UL<<49)	/* invalid op disable (opt.) */
+#define FPCR_DZED	(1UL<<50)	/* division by zero disable (opt.) */
+#define FPCR_OVFD	(1UL<<51)	/* overflow disable (optional) */
+#define FPCR_INV	(1UL<<52)	/* invalid operation */
+#define FPCR_DZE	(1UL<<53)	/* division by zero */
+#define FPCR_OVF	(1UL<<54)	/* overflow */
+#define FPCR_UNF	(1UL<<55)	/* underflow */
+#define FPCR_INE	(1UL<<56)	/* inexact */
+#define FPCR_IOV	(1UL<<57)	/* integer overflow */
+#define FPCR_UNDZ	(1UL<<60)	/* underflow to zero (opt.) */
+#define FPCR_UNFD	(1UL<<61)	/* underflow disable (opt.) */
+#define FPCR_INED	(1UL<<62)	/* inexact disable (opt.) */
+#define FPCR_SUM	(1UL<<63)	/* summary bit */
+
+#define FPCR_DYN_SHIFT	58		/* first dynamic rounding mode bit */
+#define FPCR_DYN_CHOPPED (0x0UL << FPCR_DYN_SHIFT)	/* towards 0 */
+#define FPCR_DYN_MINUS	 (0x1UL << FPCR_DYN_SHIFT)	/* towards -INF */
+#define FPCR_DYN_NORMAL	 (0x2UL << FPCR_DYN_SHIFT)	/* towards nearest */
+#define FPCR_DYN_PLUS	 (0x3UL << FPCR_DYN_SHIFT)	/* towards +INF */
+#define FPCR_DYN_MASK	 (0x3UL << FPCR_DYN_SHIFT)
+
+#define FPCR_MASK	0xffff800000000000L
+
+/*
+ * IEEE trap enables are implemented in software.  These per-thread
+ * bits are stored in the "ieee_state" field of "struct thread_info".
+ * Thus, the bits are defined so as not to conflict with the
+ * floating-point enable bit (which is architected).  On top of that,
+ * we want to make these bits compatible with OSF/1 so
+ * ieee_set_fp_control() etc. can be implemented easily and
+ * compatibly.  The corresponding definitions are in
+ * /usr/include/machine/fpu.h under OSF/1.
+ */
+#define IEEE_TRAP_ENABLE_INV	(1UL<<1)	/* invalid op */
+#define IEEE_TRAP_ENABLE_DZE	(1UL<<2)	/* division by zero */
+#define IEEE_TRAP_ENABLE_OVF	(1UL<<3)	/* overflow */
+#define IEEE_TRAP_ENABLE_UNF	(1UL<<4)	/* underflow */
+#define IEEE_TRAP_ENABLE_INE	(1UL<<5)	/* inexact */
+#define IEEE_TRAP_ENABLE_DNO	(1UL<<6)	/* denorm */
+#define IEEE_TRAP_ENABLE_MASK	(IEEE_TRAP_ENABLE_INV | IEEE_TRAP_ENABLE_DZE |\
+				 IEEE_TRAP_ENABLE_OVF | IEEE_TRAP_ENABLE_UNF |\
+				 IEEE_TRAP_ENABLE_INE | IEEE_TRAP_ENABLE_DNO)
+
+/* Denorm and Underflow flushing */
+#define IEEE_MAP_DMZ		(1UL<<12)	/* Map denorm inputs to zero */
+#define IEEE_MAP_UMZ		(1UL<<13)	/* Map underflowed outputs to zero */
+
+#define IEEE_MAP_MASK		(IEEE_MAP_DMZ | IEEE_MAP_UMZ)
+
+/* status bits coming from fpcr: */
+#define IEEE_STATUS_INV		(1UL<<17)
+#define IEEE_STATUS_DZE		(1UL<<18)
+#define IEEE_STATUS_OVF		(1UL<<19)
+#define IEEE_STATUS_UNF		(1UL<<20)
+#define IEEE_STATUS_INE		(1UL<<21)
+#define IEEE_STATUS_DNO		(1UL<<22)
+
+#define IEEE_STATUS_MASK	(IEEE_STATUS_INV | IEEE_STATUS_DZE |	\
+				 IEEE_STATUS_OVF | IEEE_STATUS_UNF |	\
+				 IEEE_STATUS_INE | IEEE_STATUS_DNO)
+
+#define IEEE_SW_MASK		(IEEE_TRAP_ENABLE_MASK |		\
+				 IEEE_STATUS_MASK | IEEE_MAP_MASK)
+
+#define IEEE_CURRENT_RM_SHIFT	32
+#define IEEE_CURRENT_RM_MASK	(3UL<<IEEE_CURRENT_RM_SHIFT)
+
+#define IEEE_STATUS_TO_EXCSUM_SHIFT	16
+
+#define IEEE_INHERIT    (1UL<<63)	/* inherit on thread create? */
+
+/*
+ * Convert the software IEEE trap enable and status bits into the
+ * hardware fpcr format. 
+ *
+ * Digital Unix engineers receive my thanks for not defining the
+ * software bits identical to the hardware bits.  The chip designers
+ * receive my thanks for making all the not-implemented fpcr bits
+ * RAZ forcing us to use system calls to read/write this value.
+ */
+
+static inline unsigned long
+ieee_swcr_to_fpcr(unsigned long sw)
+{
+	unsigned long fp;
+	fp = (sw & IEEE_STATUS_MASK) << 35;
+	fp |= (sw & IEEE_MAP_DMZ) << 36;
+	fp |= (sw & IEEE_STATUS_MASK ? FPCR_SUM : 0);
+	fp |= (~sw & (IEEE_TRAP_ENABLE_INV
+		      | IEEE_TRAP_ENABLE_DZE
+		      | IEEE_TRAP_ENABLE_OVF)) << 48;
+	fp |= (~sw & (IEEE_TRAP_ENABLE_UNF | IEEE_TRAP_ENABLE_INE)) << 57;
+	fp |= (sw & IEEE_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
+	fp |= (~sw & IEEE_TRAP_ENABLE_DNO) << 41;
+	return fp;
+}
+
+static inline unsigned long
+ieee_fpcr_to_swcr(unsigned long fp)
+{
+	unsigned long sw;
+	sw = (fp >> 35) & IEEE_STATUS_MASK;
+	sw |= (fp >> 36) & IEEE_MAP_DMZ;
+	sw |= (~fp >> 48) & (IEEE_TRAP_ENABLE_INV
+			     | IEEE_TRAP_ENABLE_DZE
+			     | IEEE_TRAP_ENABLE_OVF);
+	sw |= (~fp >> 57) & (IEEE_TRAP_ENABLE_UNF | IEEE_TRAP_ENABLE_INE);
+	sw |= (fp >> 47) & IEEE_MAP_UMZ;
+	sw |= (~fp >> 41) & IEEE_TRAP_ENABLE_DNO;
+	return sw;
+}
+
+
+#endif /* _UAPI__ASM_ALPHA_FPU_H */
diff --git a/arch/alpha/include/uapi/asm/gentrap.h b/arch/alpha/include/uapi/asm/gentrap.h
new file mode 100644
index 000000000..c02ccc5ec
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/gentrap.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASMAXP_GENTRAP_H
+#define _ASMAXP_GENTRAP_H
+
+/*
+ * Definitions for gentrap causes.  They are generated by user-level
+ * programs and therefore should be compatible with the corresponding
+ * OSF/1 definitions.
+ */
+#define GEN_INTOVF	-1	/* integer overflow */
+#define GEN_INTDIV	-2	/* integer division by zero */
+#define GEN_FLTOVF	-3	/* fp overflow */
+#define GEN_FLTDIV	-4	/* fp division by zero */
+#define GEN_FLTUND	-5	/* fp underflow */
+#define GEN_FLTINV	-6	/* invalid fp operand */
+#define GEN_FLTINE	-7	/* inexact fp operand */
+#define GEN_DECOVF	-8	/* decimal overflow (for COBOL??) */
+#define GEN_DECDIV	-9	/* decimal division by zero */
+#define GEN_DECINV	-10	/* invalid decimal operand */
+#define GEN_ROPRAND	-11	/* reserved operand */
+#define GEN_ASSERTERR	-12	/* assertion error */
+#define GEN_NULPTRERR	-13	/* null pointer error */
+#define GEN_STKOVF	-14	/* stack overflow */
+#define GEN_STRLENERR	-15	/* string length error */
+#define GEN_SUBSTRERR	-16	/* substring error */
+#define GEN_RANGERR	-17	/* range error */
+#define GEN_SUBRNG	-18
+#define GEN_SUBRNG1	-19	 
+#define GEN_SUBRNG2	-20
+#define GEN_SUBRNG3	-21	/* these report range errors for */
+#define GEN_SUBRNG4	-22	/* subscripting (indexing) at levels 0..7 */
+#define GEN_SUBRNG5	-23
+#define GEN_SUBRNG6	-24
+#define GEN_SUBRNG7	-25
+
+/* the remaining codes (-26..-1023) are reserved. */
+
+#endif /* _ASMAXP_GENTRAP_H */
diff --git a/arch/alpha/include/uapi/asm/ioctl.h b/arch/alpha/include/uapi/asm/ioctl.h
new file mode 100644
index 000000000..a9d68a08e
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/ioctl.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_IOCTL_H
+#define _ALPHA_IOCTL_H
+
+/*
+ * The original linux ioctl numbering scheme was just a general
+ * "anything goes" setup, where more or less random numbers were
+ * assigned.  Sorry, I was clueless when I started out on this.
+ *
+ * On the alpha, we'll try to clean it up a bit, using a more sane
+ * ioctl numbering, and also trying to be compatible with OSF/1 in
+ * the process. I'd like to clean it up for the i386 as well, but
+ * it's so painful recognizing both the new and the old numbers..
+ */
+
+#define _IOC_NRBITS	8
+#define _IOC_TYPEBITS	8
+#define _IOC_SIZEBITS	13
+#define _IOC_DIRBITS	3
+
+#define _IOC_NRMASK	((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK	((1 << _IOC_TYPEBITS)-1)
+#define _IOC_SIZEMASK	((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK	((1 << _IOC_DIRBITS)-1)
+
+#define _IOC_NRSHIFT	0
+#define _IOC_TYPESHIFT	(_IOC_NRSHIFT+_IOC_NRBITS)
+#define _IOC_SIZESHIFT	(_IOC_TYPESHIFT+_IOC_TYPEBITS)
+#define _IOC_DIRSHIFT	(_IOC_SIZESHIFT+_IOC_SIZEBITS)
+
+/*
+ * Direction bits _IOC_NONE could be 0, but OSF/1 gives it a bit.
+ * And this turns out useful to catch old ioctl numbers in header
+ * files for us.
+ */
+#define _IOC_NONE	1U
+#define _IOC_READ	2U
+#define _IOC_WRITE	4U
+
+#define _IOC(dir,type,nr,size)			\
+	((unsigned int)				\
+	 (((dir)  << _IOC_DIRSHIFT) |		\
+	  ((type) << _IOC_TYPESHIFT) |		\
+	  ((nr)   << _IOC_NRSHIFT) |		\
+	  ((size) << _IOC_SIZESHIFT)))
+
+/* used to create numbers */
+#define _IO(type,nr)		_IOC(_IOC_NONE,(type),(nr),0)
+#define _IOR(type,nr,size)	_IOC(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOW(type,nr,size)	_IOC(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IOWR(type,nr,size)	_IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+/* used to decode them.. */
+#define _IOC_DIR(nr)		(((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
+#define _IOC_TYPE(nr)		(((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)		(((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
+#define _IOC_SIZE(nr)		(((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
+
+/* ...and for the drivers/sound files... */
+
+#define IOC_IN		(_IOC_WRITE << _IOC_DIRSHIFT)
+#define IOC_OUT		(_IOC_READ << _IOC_DIRSHIFT)
+#define IOC_INOUT	((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
+#define IOCSIZE_MASK	(_IOC_SIZEMASK << _IOC_SIZESHIFT)
+#define IOCSIZE_SHIFT	(_IOC_SIZESHIFT)
+
+#endif /* _ALPHA_IOCTL_H */
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
new file mode 100644
index 000000000..971311605
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_ALPHA_IOCTLS_H
+#define _ASM_ALPHA_IOCTLS_H
+
+#include <asm/ioctl.h>
+
+#define FIOCLEX		_IO('f', 1)
+#define FIONCLEX	_IO('f', 2)
+#define FIOASYNC	_IOW('f', 125, int)
+#define FIONBIO		_IOW('f', 126, int)
+#define FIONREAD	_IOR('f', 127, int)
+#define TIOCINQ		FIONREAD
+#define FIOQSIZE	_IOR('f', 128, loff_t)
+
+#define TIOCGETP	_IOR('t', 8, struct sgttyb)
+#define TIOCSETP	_IOW('t', 9, struct sgttyb)
+#define TIOCSETN	_IOW('t', 10, struct sgttyb)	/* TIOCSETP wo flush */
+
+#define TIOCSETC	_IOW('t', 17, struct tchars)
+#define TIOCGETC	_IOR('t', 18, struct tchars)
+#define TCGETS		_IOR('t', 19, struct termios)
+#define TCSETS		_IOW('t', 20, struct termios)
+#define TCSETSW		_IOW('t', 21, struct termios)
+#define TCSETSF		_IOW('t', 22, struct termios)
+
+#define TCGETA		_IOR('t', 23, struct termio)
+#define TCSETA		_IOW('t', 24, struct termio)
+#define TCSETAW		_IOW('t', 25, struct termio)
+#define TCSETAF		_IOW('t', 28, struct termio)
+
+#define TCSBRK		_IO('t', 29)
+#define TCXONC		_IO('t', 30)
+#define TCFLSH		_IO('t', 31)
+
+#define TCGETS2		_IOR('T', 42, struct termios2)
+#define TCSETS2		_IOW('T', 43, struct termios2)
+#define TCSETSW2	_IOW('T', 44, struct termios2)
+#define TCSETSF2	_IOW('T', 45, struct termios2)
+
+#define TIOCSWINSZ	_IOW('t', 103, struct winsize)
+#define TIOCGWINSZ	_IOR('t', 104, struct winsize)
+#define	TIOCSTART	_IO('t', 110)		/* start output, like ^Q */
+#define	TIOCSTOP	_IO('t', 111)		/* stop output, like ^S */
+#define TIOCOUTQ        _IOR('t', 115, int)     /* output queue size */
+
+#define TIOCGLTC	_IOR('t', 116, struct ltchars)
+#define TIOCSLTC	_IOW('t', 117, struct ltchars)
+#define TIOCSPGRP	_IOW('t', 118, int)
+#define TIOCGPGRP	_IOR('t', 119, int)
+
+#define TIOCEXCL	0x540C
+#define TIOCNXCL	0x540D
+#define TIOCSCTTY	0x540E
+
+#define TIOCSTI		0x5412
+#define TIOCMGET	0x5415
+#define TIOCMBIS	0x5416
+#define TIOCMBIC	0x5417
+#define TIOCMSET	0x5418
+# define TIOCM_LE	0x001
+# define TIOCM_DTR	0x002
+# define TIOCM_RTS	0x004
+# define TIOCM_ST	0x008
+# define TIOCM_SR	0x010
+# define TIOCM_CTS	0x020
+# define TIOCM_CAR	0x040
+# define TIOCM_RNG	0x080
+# define TIOCM_DSR	0x100
+# define TIOCM_CD	TIOCM_CAR
+# define TIOCM_RI	TIOCM_RNG
+# define TIOCM_OUT1	0x2000
+# define TIOCM_OUT2	0x4000
+# define TIOCM_LOOP	0x8000
+
+#define TIOCGSOFTCAR	0x5419
+#define TIOCSSOFTCAR	0x541A
+#define TIOCLINUX	0x541C
+#define TIOCCONS	0x541D
+#define TIOCGSERIAL	0x541E
+#define TIOCSSERIAL	0x541F
+#define TIOCPKT		0x5420
+# define TIOCPKT_DATA		 0
+# define TIOCPKT_FLUSHREAD	 1
+# define TIOCPKT_FLUSHWRITE	 2
+# define TIOCPKT_STOP		 4
+# define TIOCPKT_START		 8
+# define TIOCPKT_NOSTOP		16
+# define TIOCPKT_DOSTOP		32
+# define TIOCPKT_IOCTL		64
+
+
+#define TIOCNOTTY	0x5422
+#define TIOCSETD	0x5423
+#define TIOCGETD	0x5424
+#define TCSBRKP		0x5425	/* Needed for POSIX tcsendbreak() */
+#define TIOCSBRK	0x5427  /* BSD compatibility */
+#define TIOCCBRK	0x5428  /* BSD compatibility */
+#define TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TIOCGRS485	_IOR('T', 0x2E, struct serial_rs485)
+#define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
+#define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
+#define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
+#define TIOCVHANGUP	0x5437
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
+#define TIOCGISO7816	_IOR('T', 0x42, struct serial_iso7816)
+#define TIOCSISO7816	_IOWR('T', 0x43, struct serial_iso7816)
+
+#define TIOCSERCONFIG	0x5453
+#define TIOCSERGWILD	0x5454
+#define TIOCSERSWILD	0x5455
+#define TIOCGLCKTRMIOS	0x5456
+#define TIOCSLCKTRMIOS	0x5457
+#define TIOCSERGSTRUCT	0x5458 /* For debugging only */
+#define TIOCSERGETLSR   0x5459 /* Get line status register */
+  /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+# define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config  */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
+#define TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
+
+#endif /* _ASM_ALPHA_IOCTLS_H */
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
new file mode 100644
index 000000000..763929e81
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ALPHA_MMAN_H__
+#define __ALPHA_MMAN_H__
+
+#define PROT_READ	0x1		/* page can be read */
+#define PROT_WRITE	0x2		/* page can be written */
+#define PROT_EXEC	0x4		/* page can be executed */
+#define PROT_SEM	0x8		/* page may be used for atomic ops */
+#define PROT_NONE	0x0		/* page can not be accessed */
+#define PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
+#define PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */
+
+/* 0x01 - 0x03 are defined in linux/mman.h */
+#define MAP_TYPE	0x0f		/* Mask for type of mapping (OSF/1 is _wrong_) */
+#define MAP_FIXED	0x100		/* Interpret addr exactly */
+#define MAP_ANONYMOUS	0x10		/* don't use a file */
+
+/* not used by linux, but here to make sure we don't clash with OSF/1 defines */
+#define _MAP_HASSEMAPHORE 0x0200
+#define _MAP_INHERIT	0x0400
+#define _MAP_UNALIGNED	0x0800
+
+/* These are linux-specific */
+#define MAP_GROWSDOWN	0x01000		/* stack-like segment */
+#define MAP_DENYWRITE	0x02000		/* ETXTBSY */
+#define MAP_EXECUTABLE	0x04000		/* mark it as an executable */
+#define MAP_LOCKED	0x08000		/* lock the mapping */
+#define MAP_NORESERVE	0x10000		/* don't check for reservations */
+#define MAP_POPULATE	0x20000		/* populate (prefault) pagetables */
+#define MAP_NONBLOCK	0x40000		/* do not block on IO */
+#define MAP_STACK	0x80000		/* give out an address that is best suited for process/thread stacks */
+#define MAP_HUGETLB	0x100000	/* create a huge page mapping */
+#define MAP_FIXED_NOREPLACE	0x200000/* MAP_FIXED which doesn't unmap underlying mapping */
+
+#define MS_ASYNC	1		/* sync memory asynchronously */
+#define MS_SYNC		2		/* synchronous memory sync */
+#define MS_INVALIDATE	4		/* invalidate the caches */
+
+#define MCL_CURRENT	 8192		/* lock all currently mapped pages */
+#define MCL_FUTURE	16384		/* lock all additions to address space */
+#define MCL_ONFAULT	32768		/* lock all pages that are faulted in */
+
+#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
+
+#define MADV_NORMAL	0		/* no further special treatment */
+#define MADV_RANDOM	1		/* expect random page references */
+#define MADV_SEQUENTIAL	2		/* expect sequential page references */
+#define MADV_WILLNEED	3		/* will need these pages */
+#define	MADV_SPACEAVAIL	5		/* ensure resources are available */
+#define MADV_DONTNEED	6		/* don't need these pages */
+
+/* common/generic parameters */
+#define MADV_FREE	8		/* free pages only if memory pressure */
+#define MADV_REMOVE	9		/* remove these pages & resources */
+#define MADV_DONTFORK	10		/* don't inherit across fork */
+#define MADV_DOFORK	11		/* do inherit across fork */
+
+#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
+#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
+
+#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
+
+#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
+					   overrides the coredump filter bits */
+#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
+
+#define MADV_WIPEONFORK 18		/* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 19		/* Undo MADV_WIPEONFORK */
+
+#define MADV_COLD	20		/* deactivate these pages */
+#define MADV_PAGEOUT	21		/* reclaim these pages */
+
+#define MADV_POPULATE_READ	22	/* populate (prefault) page tables readable */
+#define MADV_POPULATE_WRITE	23	/* populate (prefault) page tables writable */
+
+#define MADV_DONTNEED_LOCKED	24	/* like DONTNEED, but drop locked pages too */
+
+#define MADV_COLLAPSE	25		/* Synchronous hugepage collapse */
+
+/* compatibility flags */
+#define MAP_FILE	0
+
+#define PKEY_DISABLE_ACCESS	0x1
+#define PKEY_DISABLE_WRITE	0x2
+#define PKEY_ACCESS_MASK	(PKEY_DISABLE_ACCESS |\
+				 PKEY_DISABLE_WRITE)
+
+#endif /* __ALPHA_MMAN_H__ */
diff --git a/arch/alpha/include/uapi/asm/pal.h b/arch/alpha/include/uapi/asm/pal.h
new file mode 100644
index 000000000..7427e028d
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/pal.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ALPHA_PAL_H
+#define _UAPI__ALPHA_PAL_H
+
+/*
+ * Common PAL-code
+ */
+#define PAL_halt	  0
+#define PAL_cflush	  1
+#define PAL_draina	  2
+#define PAL_bpt		128
+#define PAL_bugchk	129
+#define PAL_chmk	131
+#define PAL_callsys	131
+#define PAL_imb		134
+#define PAL_rduniq	158
+#define PAL_wruniq	159
+#define PAL_gentrap	170
+#define PAL_nphalt	190
+
+/*
+ * VMS specific PAL-code
+ */
+#define PAL_swppal	10
+#define PAL_mfpr_vptb	41
+
+/*
+ * OSF specific PAL-code
+ */
+#define PAL_cserve	 9
+#define PAL_wripir	13
+#define PAL_rdmces	16
+#define PAL_wrmces	17
+#define PAL_wrfen	43
+#define PAL_wrvptptr	45
+#define PAL_jtopal	46
+#define PAL_swpctx	48
+#define PAL_wrval	49
+#define PAL_rdval	50
+#define PAL_tbi		51
+#define PAL_wrent	52
+#define PAL_swpipl	53
+#define PAL_rdps	54
+#define PAL_wrkgp	55
+#define PAL_wrusp	56
+#define PAL_wrperfmon	57
+#define PAL_rdusp	58
+#define PAL_whami	60
+#define PAL_retsys	61
+#define PAL_wtint	62
+#define PAL_rti		63
+
+
+#endif /* _UAPI__ALPHA_PAL_H */
diff --git a/arch/alpha/include/uapi/asm/param.h b/arch/alpha/include/uapi/asm/param.h
new file mode 100644
index 000000000..49c711993
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/param.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_ALPHA_PARAM_H
+#define _UAPI_ASM_ALPHA_PARAM_H
+
+#define HZ		1024
+
+#define EXEC_PAGESIZE	8192
+
+#ifndef NOGROUP
+#define NOGROUP		(-1)
+#endif
+
+#define MAXHOSTNAMELEN	64	/* max length of hostname */
+
+#endif /* _UAPI_ASM_ALPHA_PARAM_H */
diff --git a/arch/alpha/include/uapi/asm/posix_types.h b/arch/alpha/include/uapi/asm/posix_types.h
new file mode 100644
index 000000000..04f1ea575
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/posix_types.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_POSIX_TYPES_H
+#define _ALPHA_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned int	__kernel_ino_t;
+#define __kernel_ino_t __kernel_ino_t
+
+typedef unsigned long	__kernel_sigset_t;	/* at least 32 bits */
+
+#include <asm-generic/posix_types.h>
+
+#endif /* _ALPHA_POSIX_TYPES_H */
diff --git a/arch/alpha/include/uapi/asm/ptrace.h b/arch/alpha/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000..c29194181
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/ptrace.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASMAXP_PTRACE_H
+#define _UAPI_ASMAXP_PTRACE_H
+
+
+/*
+ * This struct defines the way the registers are stored on the
+ * kernel stack during a system call or other kernel entry
+ *
+ * NOTE! I want to minimize the overhead of system calls, so this
+ * struct has as little information as possible. It does not have
+ *
+ *  - floating point regs: the kernel doesn't change those
+ *  - r9-15: saved by the C compiler
+ *
+ * This makes "fork()" and "exec()" a bit more complex, but should
+ * give us low system call latency.
+ */
+
+struct pt_regs {
+	unsigned long r0;
+	unsigned long r1;
+	unsigned long r2;
+	unsigned long r3;
+	unsigned long r4;
+	unsigned long r5;
+	unsigned long r6;
+	unsigned long r7;
+	unsigned long r8;
+	unsigned long r19;
+	unsigned long r20;
+	unsigned long r21;
+	unsigned long r22;
+	unsigned long r23;
+	unsigned long r24;
+	unsigned long r25;
+	unsigned long r26;
+	unsigned long r27;
+	unsigned long r28;
+	unsigned long hae;
+/* JRP - These are the values provided to a0-a2 by PALcode */
+	unsigned long trap_a0;
+	unsigned long trap_a1;
+	unsigned long trap_a2;
+/* These are saved by PAL-code: */
+	unsigned long ps;
+	unsigned long pc;
+	unsigned long gp;
+	unsigned long r16;
+	unsigned long r17;
+	unsigned long r18;
+};
+
+/*
+ * This is the extended stack used by signal handlers and the context
+ * switcher: it's pushed after the normal "struct pt_regs".
+ */
+struct switch_stack {
+	unsigned long r9;
+	unsigned long r10;
+	unsigned long r11;
+	unsigned long r12;
+	unsigned long r13;
+	unsigned long r14;
+	unsigned long r15;
+	unsigned long r26;
+	unsigned long fp[32];	/* fp[31] is fpcr */
+};
+
+
+#endif /* _UAPI_ASMAXP_PTRACE_H */
diff --git a/arch/alpha/include/uapi/asm/reg.h b/arch/alpha/include/uapi/asm/reg.h
new file mode 100644
index 000000000..2652f3a38
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/reg.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __reg_h__
+#define __reg_h__
+
+/*
+ * Exception frame offsets.
+ */
+#define EF_V0		0
+#define EF_T0		1
+#define EF_T1		2
+#define EF_T2		3
+#define EF_T3		4
+#define EF_T4		5
+#define EF_T5		6
+#define EF_T6		7
+#define EF_T7		8
+#define EF_S0		9
+#define EF_S1		10
+#define EF_S2		11
+#define EF_S3		12
+#define EF_S4		13
+#define EF_S5		14
+#define EF_S6		15
+#define EF_A3		16
+#define EF_A4		17
+#define EF_A5		18
+#define EF_T8		19
+#define EF_T9		20
+#define EF_T10		21
+#define EF_T11		22
+#define EF_RA		23
+#define EF_T12		24
+#define EF_AT		25
+#define EF_SP		26
+#define EF_PS		27
+#define EF_PC		28
+#define EF_GP		29
+#define EF_A0		30
+#define EF_A1		31
+#define EF_A2		32
+
+#define EF_SIZE		(33*8)
+#define HWEF_SIZE	(6*8)		/* size of PAL frame (PS-A2) */
+
+#define EF_SSIZE	(EF_SIZE - HWEF_SIZE)
+
+/*
+ * Map register number into core file offset.
+ */
+#define CORE_REG(reg, ubase) \
+	(((unsigned long *)((unsigned long)(ubase)))[reg])
+
+#endif /* __reg_h__ */
diff --git a/arch/alpha/include/uapi/asm/regdef.h b/arch/alpha/include/uapi/asm/regdef.h
new file mode 100644
index 000000000..cc99df0c6
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/regdef.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __alpha_regdef_h__
+#define __alpha_regdef_h__
+
+#define v0	$0	/* function return value */
+
+#define t0	$1	/* temporary registers (caller-saved) */
+#define t1	$2
+#define t2	$3
+#define t3	$4
+#define t4	$5
+#define t5	$6
+#define t6	$7
+#define t7	$8
+
+#define	s0	$9	/* saved-registers (callee-saved registers) */
+#define	s1	$10
+#define	s2	$11
+#define	s3	$12
+#define	s4	$13
+#define	s5	$14
+#define	s6	$15
+#define	fp	s6	/* frame-pointer (s6 in frame-less procedures) */
+
+#define a0	$16	/* argument registers (caller-saved) */
+#define a1	$17
+#define a2	$18
+#define a3	$19
+#define a4	$20
+#define a5	$21
+
+#define t8	$22	/* more temps (caller-saved) */
+#define t9	$23
+#define t10	$24
+#define t11	$25
+#define ra	$26	/* return address register */
+#define t12	$27
+
+#define pv	t12	/* procedure-variable register */
+#define AT	$at	/* assembler temporary */
+#define gp	$29	/* global pointer */
+#define sp	$30	/* stack pointer */
+#define zero	$31	/* reads as zero, writes are noops */
+
+#endif /* __alpha_regdef_h__ */
diff --git a/arch/alpha/include/uapi/asm/resource.h b/arch/alpha/include/uapi/asm/resource.h
new file mode 100644
index 000000000..362423ffe
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/resource.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_RESOURCE_H
+#define _ALPHA_RESOURCE_H
+
+/*
+ * Alpha/Linux-specific ordering of these four resource limit IDs,
+ * the rest comes from the generic header:
+ */
+#define RLIMIT_NOFILE		6	/* max number of open files */
+#define RLIMIT_AS		7	/* address space limit */
+#define RLIMIT_NPROC		8	/* max number of processes */
+#define RLIMIT_MEMLOCK		9	/* max locked-in-memory address space */
+
+/*
+ * SuS says limits have to be unsigned.  Fine, it's unsigned, but
+ * we retain the old value for compatibility, especially with DU. 
+ * When you run into the 2^63 barrier, you call me.
+ */
+#define RLIM_INFINITY		0x7ffffffffffffffful
+
+#include <asm-generic/resource.h>
+
+#endif /* _ALPHA_RESOURCE_H */
diff --git a/arch/alpha/include/uapi/asm/setup.h b/arch/alpha/include/uapi/asm/setup.h
new file mode 100644
index 000000000..f881ea594
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/setup.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ALPHA_SETUP_H
+#define _UAPI__ALPHA_SETUP_H
+
+#define COMMAND_LINE_SIZE	256
+
+#endif /* _UAPI__ALPHA_SETUP_H */
diff --git a/arch/alpha/include/uapi/asm/sigcontext.h b/arch/alpha/include/uapi/asm/sigcontext.h
new file mode 100644
index 000000000..5428c4256
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/sigcontext.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASMAXP_SIGCONTEXT_H
+#define _ASMAXP_SIGCONTEXT_H
+
+struct sigcontext {
+	/*
+	 * What should we have here? I'd probably better use the same
+	 * stack layout as OSF/1, just in case we ever want to try
+	 * running their binaries.. 
+	 *
+	 * This is the basic layout, but I don't know if we'll ever
+	 * actually fill in all the values..
+	 */
+	 long		sc_onstack;
+	 long		sc_mask;
+	 long		sc_pc;
+	 long		sc_ps;
+	 long		sc_regs[32];
+	 long		sc_ownedfp;
+	 long		sc_fpregs[32];
+	 unsigned long	sc_fpcr;
+	 unsigned long	sc_fp_control;
+	 unsigned long	sc_reserved1, sc_reserved2;
+	 unsigned long	sc_ssize;
+	 char *		sc_sbase;
+	 unsigned long	sc_traparg_a0;
+	 unsigned long	sc_traparg_a1;
+	 unsigned long	sc_traparg_a2;
+	 unsigned long	sc_fp_trap_pc;
+	 unsigned long	sc_fp_trigger_sum;
+	 unsigned long	sc_fp_trigger_inst;
+};
+
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/siginfo.h b/arch/alpha/include/uapi/asm/siginfo.h
new file mode 100644
index 000000000..e08eae881
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/siginfo.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_SIGINFO_H
+#define _ALPHA_SIGINFO_H
+
+#include <asm-generic/siginfo.h>
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h
new file mode 100644
index 000000000..1413075f7
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/signal.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASMAXP_SIGNAL_H
+#define _UAPI_ASMAXP_SIGNAL_H
+
+#include <linux/types.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG		32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+
+/*
+ * Linux/AXP has different signal numbers that Linux/i386: I'm trying
+ * to make it OSF/1 binary compatible, at least for normal binaries.
+ */
+#define SIGHUP		 1
+#define SIGINT		 2
+#define SIGQUIT		 3
+#define SIGILL		 4
+#define SIGTRAP		 5
+#define SIGABRT		 6
+#define SIGEMT		 7
+#define SIGFPE		 8
+#define SIGKILL		 9
+#define SIGBUS		10
+#define SIGSEGV		11
+#define SIGSYS		12
+#define SIGPIPE		13
+#define SIGALRM		14
+#define SIGTERM		15
+#define SIGURG		16
+#define SIGSTOP		17
+#define SIGTSTP		18
+#define SIGCONT		19
+#define SIGCHLD		20
+#define SIGTTIN		21
+#define SIGTTOU		22
+#define SIGIO		23
+#define SIGXCPU		24
+#define SIGXFSZ		25
+#define SIGVTALRM	26
+#define SIGPROF		27
+#define SIGWINCH	28
+#define SIGINFO		29
+#define SIGUSR1		30
+#define SIGUSR2		31
+
+#define SIGPOLL	SIGIO
+#define SIGPWR	SIGINFO
+#define SIGIOT	SIGABRT
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN	32
+#define SIGRTMAX	_NSIG
+
+#define SA_ONSTACK	0x00000001
+#define SA_RESTART	0x00000002
+#define SA_NOCLDSTOP	0x00000004
+#define SA_NODEFER	0x00000008
+#define SA_RESETHAND	0x00000010
+#define SA_NOCLDWAIT	0x00000020
+#define SA_SIGINFO	0x00000040
+
+#define SA_ONESHOT	SA_RESETHAND
+#define SA_NOMASK	SA_NODEFER
+
+#define MINSIGSTKSZ	4096
+#define SIGSTKSZ	16384
+
+#define SIG_BLOCK          1	/* for blocking signals */
+#define SIG_UNBLOCK        2	/* for unblocking signals */
+#define SIG_SETMASK        3	/* for setting the signal mask */
+
+#include <asm-generic/signal-defs.h>
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+	union {
+	  __sighandler_t	_sa_handler;
+	  void (*_sa_sigaction)(int, struct siginfo *, void *);
+	} _u;
+	sigset_t	sa_mask;
+	int		sa_flags;
+};
+
+#define sa_handler	_u._sa_handler
+#define sa_sigaction	_u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+	void __user *ss_sp;
+	int ss_flags;
+	__kernel_size_t ss_size;
+} stack_t;
+
+/* sigstack(2) is deprecated, and will be withdrawn in a future version
+   of the X/Open CAE Specification.  Use sigaltstack instead.  It is only
+   implemented here for OSF/1 compatibility.  */
+
+struct sigstack {
+	void __user *ss_sp;
+	int ss_onstack;
+};
+
+
+#endif /* _UAPI_ASMAXP_SIGNAL_H */
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
new file mode 100644
index 000000000..739891b94
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_SOCKET_H
+#define _UAPI_ASM_SOCKET_H
+
+#include <linux/posix_types.h>
+#include <asm/sockios.h>
+
+/* For setsockopt(2) */
+/*
+ * Note: we only bother about making the SOL_SOCKET options
+ * same as OSF/1, as that's all that "normal" programs are
+ * likely to set.  We don't necessarily want to be binary
+ * compatible with _everything_. 
+ */
+#define SOL_SOCKET	0xffff
+
+#define SO_DEBUG	0x0001
+#define SO_REUSEADDR	0x0004
+#define SO_KEEPALIVE	0x0008
+#define SO_DONTROUTE	0x0010
+#define SO_BROADCAST	0x0020
+#define SO_LINGER	0x0080
+#define SO_OOBINLINE	0x0100
+#define SO_REUSEPORT	0x0200
+
+#define SO_TYPE		0x1008
+#define SO_ERROR	0x1007
+#define SO_SNDBUF	0x1001
+#define SO_RCVBUF	0x1002
+#define SO_SNDBUFFORCE	0x100a
+#define SO_RCVBUFFORCE	0x100b
+#define	SO_RCVLOWAT	0x1010
+#define	SO_SNDLOWAT	0x1011
+#define	SO_RCVTIMEO_OLD	0x1012
+#define	SO_SNDTIMEO_OLD	0x1013
+#define SO_ACCEPTCONN	0x1014
+#define SO_PROTOCOL	0x1028
+#define SO_DOMAIN	0x1029
+
+/* linux-specific, might as well be the same as on i386 */
+#define SO_NO_CHECK	11
+#define SO_PRIORITY	12
+#define SO_BSDCOMPAT	14
+
+#define SO_PASSCRED	17
+#define SO_PEERCRED	18
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+#define SO_GET_FILTER		SO_ATTACH_FILTER
+
+#define SO_PEERNAME		28
+
+#define SO_PEERSEC		30
+#define SO_PASSSEC		34
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION		19
+#define SO_SECURITY_ENCRYPTION_TRANSPORT	20
+#define SO_SECURITY_ENCRYPTION_NETWORK		21
+
+#define SO_MARK			36
+
+#define SO_RXQ_OVFL             40
+
+#define SO_WIFI_STATUS		41
+#define SCM_WIFI_STATUS		SO_WIFI_STATUS
+#define SO_PEEK_OFF		42
+
+/* Instruct lower device to use last 4-bytes of skb data as FCS */
+#define SO_NOFCS		43
+
+#define SO_LOCK_FILTER		44
+
+#define SO_SELECT_ERR_QUEUE	45
+
+#define SO_BUSY_POLL		46
+
+#define SO_MAX_PACING_RATE	47
+
+#define SO_BPF_EXTENSIONS	48
+
+#define SO_INCOMING_CPU		49
+
+#define SO_ATTACH_BPF		50
+#define SO_DETACH_BPF		SO_DETACH_FILTER
+
+#define SO_ATTACH_REUSEPORT_CBPF	51
+#define SO_ATTACH_REUSEPORT_EBPF	52
+
+#define SO_CNX_ADVICE		53
+
+#define SCM_TIMESTAMPING_OPT_STATS	54
+
+#define SO_MEMINFO		55
+
+#define SO_INCOMING_NAPI_ID	56
+
+#define SO_COOKIE		57
+
+#define SCM_TIMESTAMPING_PKTINFO	58
+
+#define SO_PEERGROUPS		59
+
+#define SO_ZEROCOPY		60
+
+#define SO_TXTIME		61
+#define SCM_TXTIME		SO_TXTIME
+
+#define SO_BINDTOIFINDEX	62
+
+#define SO_TIMESTAMP_OLD        29
+#define SO_TIMESTAMPNS_OLD      35
+#define SO_TIMESTAMPING_OLD     37
+
+#define SO_TIMESTAMP_NEW        63
+#define SO_TIMESTAMPNS_NEW      64
+#define SO_TIMESTAMPING_NEW     65
+
+#define SO_RCVTIMEO_NEW         66
+#define SO_SNDTIMEO_NEW         67
+
+#define SO_DETACH_REUSEPORT_BPF 68
+
+#define SO_PREFER_BUSY_POLL	69
+#define SO_BUSY_POLL_BUDGET	70
+
+#define SO_NETNS_COOKIE		71
+
+#define SO_BUF_LOCK		72
+
+#define SO_RESERVE_MEM		73
+
+#define SO_TXREHASH		74
+
+#define SO_RCVMARK		75
+
+#if !defined(__KERNEL__)
+
+#if __BITS_PER_LONG == 64
+#define SO_TIMESTAMP		SO_TIMESTAMP_OLD
+#define SO_TIMESTAMPNS		SO_TIMESTAMPNS_OLD
+#define SO_TIMESTAMPING         SO_TIMESTAMPING_OLD
+
+#define SO_RCVTIMEO		SO_RCVTIMEO_OLD
+#define SO_SNDTIMEO		SO_SNDTIMEO_OLD
+#else
+#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW)
+#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW)
+#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW)
+
+#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW)
+#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW)
+#endif
+
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif
+
+#endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/alpha/include/uapi/asm/sockios.h b/arch/alpha/include/uapi/asm/sockios.h
new file mode 100644
index 000000000..af92bc27c
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/sockios.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_ALPHA_SOCKIOS_H
+#define _ASM_ALPHA_SOCKIOS_H
+
+/* Socket-level I/O control calls. */
+
+#define FIOGETOWN	_IOR('f', 123, int)
+#define FIOSETOWN 	_IOW('f', 124, int)
+
+#define SIOCATMARK	_IOR('s', 7, int)
+#define SIOCSPGRP	_IOW('s', 8, pid_t)
+#define SIOCGPGRP	_IOR('s', 9, pid_t)
+
+#define SIOCGSTAMP_OLD	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS_OLD 0x8907		/* Get stamp (timespec) */
+
+#endif /* _ASM_ALPHA_SOCKIOS_H */
diff --git a/arch/alpha/include/uapi/asm/stat.h b/arch/alpha/include/uapi/asm/stat.h
new file mode 100644
index 000000000..3f454fbd3
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/stat.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_STAT_H
+#define _ALPHA_STAT_H
+
+struct stat {
+	unsigned int	st_dev;
+	unsigned int	st_ino;
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+	unsigned int	st_uid;
+	unsigned int	st_gid;
+	unsigned int	st_rdev;
+	long		st_size;
+	unsigned long	st_atime;
+	unsigned long	st_mtime;
+	unsigned long	st_ctime;
+	unsigned int	st_blksize;
+	unsigned int	st_blocks;
+	unsigned int	st_flags;
+	unsigned int	st_gen;
+};
+
+/* The stat64 structure increases the size of dev_t, blkcnt_t, adds
+   nanosecond resolution times, and padding for expansion.  */
+
+struct stat64 {
+	unsigned long	st_dev;
+	unsigned long	st_ino;
+	unsigned long	st_rdev;
+	long		st_size;
+	unsigned long	st_blocks;
+
+	unsigned int	st_mode;
+	unsigned int	st_uid;
+	unsigned int	st_gid;
+	unsigned int	st_blksize;
+	unsigned int	st_nlink;
+	unsigned int	__pad0;
+
+	unsigned long	st_atime;
+	unsigned long 	st_atime_nsec; 
+	unsigned long	st_mtime;
+	unsigned long	st_mtime_nsec;
+	unsigned long	st_ctime;
+	unsigned long   st_ctime_nsec;
+  	long		__unused[3];
+};
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/statfs.h b/arch/alpha/include/uapi/asm/statfs.h
new file mode 100644
index 000000000..95852a4f5
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/statfs.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_STATFS_H
+#define _ALPHA_STATFS_H
+
+#include <linux/types.h>
+
+/* Alpha is the only 64-bit platform with 32-bit statfs. And doesn't
+   even seem to implement statfs64 */
+#define __statfs_word __u32
+
+#include <asm-generic/statfs.h>
+
+#endif
diff --git a/arch/alpha/include/uapi/asm/swab.h b/arch/alpha/include/uapi/asm/swab.h
new file mode 100644
index 000000000..1cc70d272
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/swab.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_SWAB_H
+#define _ALPHA_SWAB_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <asm/compiler.h>
+
+#ifdef __GNUC__
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+	/*
+	 * Unfortunately, we can't use the 6 instruction sequence
+	 * on ev6 since the latency of the UNPKBW is 3, which is
+	 * pretty hard to hide.  Just in case a future implementation
+	 * has a lower latency, here's the sequence (also by Mike Burrows)
+	 *
+	 * UNPKBW a0, v0       v0: 00AA00BB00CC00DD
+	 * SLL v0, 24, a0      a0: BB00CC00DD000000
+	 * BIS v0, a0, a0      a0: BBAACCBBDDCC00DD
+	 * EXTWL a0, 6, v0     v0: 000000000000BBAA
+	 * ZAP a0, 0xf3, a0    a0: 00000000DDCC0000
+	 * ADDL a0, v0, v0     v0: ssssssssDDCCBBAA
+	 */
+
+	__u64 t0, t1, t2, t3;
+
+	t0 = __kernel_inslh(x, 7);	/* t0 : 0000000000AABBCC */
+	t1 = __kernel_inswl(x, 3);	/* t1 : 000000CCDD000000 */
+	t1 |= t0;			/* t1 : 000000CCDDAABBCC */
+	t2 = t1 >> 16;			/* t2 : 0000000000CCDDAA */
+	t0 = t1 & 0xFF00FF00;		/* t0 : 00000000DD00BB00 */
+	t3 = t2 & 0x00FF00FF;		/* t3 : 0000000000CC00AA */
+	t1 = t0 + t3;			/* t1 : ssssssssDDCCBBAA */
+
+	return t1;
+}
+#define __arch_swab32 __arch_swab32
+
+#endif /* __GNUC__ */
+
+#endif /* _ALPHA_SWAB_H */
diff --git a/arch/alpha/include/uapi/asm/sysinfo.h b/arch/alpha/include/uapi/asm/sysinfo.h
new file mode 100644
index 000000000..188ea76c7
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/sysinfo.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * include/asm-alpha/sysinfo.h
+ */
+
+#ifndef __ASM_ALPHA_SYSINFO_H
+#define __ASM_ALPHA_SYSINFO_H
+
+/* This defines the subset of the OSF/1 getsysinfo/setsysinfo calls
+   that we support.  */
+
+#define GSI_UACPROC			8
+#define GSI_IEEE_FP_CONTROL		45
+#define GSI_IEEE_STATE_AT_SIGNAL	46
+#define GSI_PROC_TYPE			60
+#define GSI_GET_HWRPB			101
+
+#define SSI_NVPAIRS			1
+#define SSI_LMF				7
+#define SSI_IEEE_FP_CONTROL		14
+#define SSI_IEEE_STATE_AT_SIGNAL	15
+#define SSI_IEEE_IGNORE_STATE_AT_SIGNAL	16
+#define SSI_IEEE_RAISE_EXCEPTION	1001	/* linux specific */
+
+#define SSIN_UACPROC			6
+
+#define UAC_BITMASK			7
+#define UAC_NOPRINT			1
+#define UAC_NOFIX			2
+#define UAC_SIGBUS			4
+
+#endif /* __ASM_ALPHA_SYSINFO_H */
diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h
new file mode 100644
index 000000000..f1290b220
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/termbits.h
@@ -0,0 +1,167 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ALPHA_TERMBITS_H
+#define _ALPHA_TERMBITS_H
+
+#include <asm-generic/termbits-common.h>
+
+typedef unsigned int	tcflag_t;
+
+/*
+ * termios type and macro definitions.  Be careful about adding stuff
+ * to this file since it's used in GNU libc and there are strict rules
+ * concerning namespace pollution.
+ */
+
+#define NCCS 19
+struct termios {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_cc[NCCS];		/* control characters */
+	cc_t c_line;			/* line discipline (== c_cc[19]) */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+/* Alpha has identical termios and termios2 */
+
+struct termios2 {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_cc[NCCS];		/* control characters */
+	cc_t c_line;			/* line discipline (== c_cc[19]) */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+/* Alpha has matching termios and ktermios */
+
+struct ktermios {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_cc[NCCS];		/* control characters */
+	cc_t c_line;			/* line discipline (== c_cc[19]) */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+/* c_cc characters */
+#define VEOF		 0
+#define VEOL		 1
+#define VEOL2		 2
+#define VERASE		 3
+#define VWERASE		 4
+#define VKILL		 5
+#define VREPRINT	 6
+#define VSWTC		 7
+#define VINTR		 8
+#define VQUIT		 9
+#define VSUSP		10
+#define VSTART		12
+#define VSTOP		13
+#define VLNEXT		14
+#define VDISCARD	15
+#define VMIN		16
+#define VTIME		17
+
+/* c_iflag bits */
+#define IXON	0x0200
+#define IXOFF	0x0400
+#define IUCLC	0x1000
+#define IMAXBEL	0x2000
+#define IUTF8	0x4000
+
+/* c_oflag bits */
+#define ONLCR	0x00002
+#define OLCUC	0x00004
+#define NLDLY	0x00300
+#define   NL0	0x00000
+#define   NL1	0x00100
+#define   NL2	0x00200
+#define   NL3	0x00300
+#define TABDLY	0x00c00
+#define   TAB0	0x00000
+#define   TAB1	0x00400
+#define   TAB2	0x00800
+#define   TAB3	0x00c00
+#define CRDLY	0x03000
+#define   CR0	0x00000
+#define   CR1	0x01000
+#define   CR2	0x02000
+#define   CR3	0x03000
+#define FFDLY	0x04000
+#define   FF0	0x00000
+#define   FF1	0x04000
+#define BSDLY	0x08000
+#define   BS0	0x00000
+#define   BS1	0x08000
+#define VTDLY	0x10000
+#define   VT0	0x00000
+#define   VT1	0x10000
+/*
+ * Should be equivalent to TAB3, see description of TAB3 in
+ * POSIX.1-2008, Ch. 11.2.3 "Output Modes"
+ */
+#define XTABS	TAB3
+
+/* c_cflag bit meaning */
+#define CBAUD		0x0000001f
+#define CBAUDEX		0x00000000
+#define BOTHER		0x0000001f
+#define     B57600	0x00000010
+#define    B115200	0x00000011
+#define    B230400	0x00000012
+#define    B460800	0x00000013
+#define    B500000	0x00000014
+#define    B576000	0x00000015
+#define    B921600	0x00000016
+#define   B1000000	0x00000017
+#define   B1152000	0x00000018
+#define   B1500000	0x00000019
+#define   B2000000	0x0000001a
+#define   B2500000	0x0000001b
+#define   B3000000	0x0000001c
+#define   B3500000	0x0000001d
+#define   B4000000	0x0000001e
+#define CSIZE		0x00000300
+#define   CS5		0x00000000
+#define   CS6		0x00000100
+#define   CS7		0x00000200
+#define   CS8		0x00000300
+#define CSTOPB		0x00000400
+#define CREAD		0x00000800
+#define PARENB		0x00001000
+#define PARODD		0x00002000
+#define HUPCL		0x00004000
+#define CLOCAL		0x00008000
+#define CIBAUD		0x001f0000
+
+/* c_lflag bits */
+#define ISIG	0x00000080
+#define ICANON	0x00000100
+#define XCASE	0x00004000
+#define ECHO	0x00000008
+#define ECHOE	0x00000002
+#define ECHOK	0x00000004
+#define ECHONL	0x00000010
+#define NOFLSH	0x80000000
+#define TOSTOP	0x00400000
+#define ECHOCTL	0x00000040
+#define ECHOPRT	0x00000020
+#define ECHOKE	0x00000001
+#define FLUSHO	0x00800000
+#define PENDIN	0x20000000
+#define IEXTEN	0x00000400
+#define EXTPROC	0x10000000
+
+/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
+#define	TCSANOW		0
+#define	TCSADRAIN	1
+#define	TCSAFLUSH	2
+
+#endif /* _ALPHA_TERMBITS_H */
diff --git a/arch/alpha/include/uapi/asm/termios.h b/arch/alpha/include/uapi/asm/termios.h
new file mode 100644
index 000000000..e1b981222
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/termios.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ALPHA_TERMIOS_H
+#define _UAPI_ALPHA_TERMIOS_H
+
+#include <asm/ioctls.h>
+#include <asm/termbits.h>
+
+struct sgttyb {
+	char	sg_ispeed;
+	char	sg_ospeed;
+	char	sg_erase;
+	char	sg_kill;
+	short	sg_flags;
+};
+
+struct tchars {
+	char	t_intrc;
+	char	t_quitc;
+	char	t_startc;
+	char	t_stopc;
+	char	t_eofc;
+	char	t_brkc;
+};
+
+struct ltchars {
+	char	t_suspc;
+	char	t_dsuspc;
+	char	t_rprntc;
+	char	t_flushc;
+	char	t_werasc;
+	char	t_lnextc;
+};
+
+struct winsize {
+	unsigned short ws_row;
+	unsigned short ws_col;
+	unsigned short ws_xpixel;
+	unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+	unsigned short c_iflag;		/* input mode flags */
+	unsigned short c_oflag;		/* output mode flags */
+	unsigned short c_cflag;		/* control mode flags */
+	unsigned short c_lflag;		/* local mode flags */
+	unsigned char c_line;		/* line discipline */
+	unsigned char c_cc[NCC];	/* control characters */
+};
+
+/*
+ * c_cc characters in the termio structure.  Oh, how I love being
+ * backwardly compatible.  Notice that character 4 and 5 are
+ * interpreted differently depending on whether ICANON is set in
+ * c_lflag.  If it's set, they are used as _VEOF and _VEOL, otherwise
+ * as _VMIN and V_TIME.  This is for compatibility with OSF/1 (which
+ * is compatible with sysV)...
+ */
+#define _VINTR	0
+#define _VQUIT	1
+#define _VERASE	2
+#define _VKILL	3
+#define _VEOF	4
+#define _VMIN	4
+#define _VEOL	5
+#define _VTIME	5
+#define _VEOL2	6
+#define _VSWTC	7
+
+
+#endif /* _UAPI_ALPHA_TERMIOS_H */
diff --git a/arch/alpha/include/uapi/asm/types.h b/arch/alpha/include/uapi/asm/types.h
new file mode 100644
index 000000000..6c3d49938
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/types.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ALPHA_TYPES_H
+#define _UAPI_ALPHA_TYPES_H
+
+/*
+ * This file is never included by application software unless
+ * explicitly requested (e.g., via linux/types.h) in which case the
+ * application is Linux specific so (user-) name space pollution is
+ * not a major issue.  However, for interoperability, libraries still
+ * need to be careful to avoid a name clashes.
+ */
+
+/*
+ * This is here because we used to use l64 for alpha
+ * and we don't want to impact user mode with our change to ll64
+ * in the kernel.
+ *
+ * However, some user programs are fine with this.  They can
+ * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
+ */
+#if !defined(__SANE_USERSPACE_TYPES__) && !defined(__KERNEL__)
+#include <asm-generic/int-l64.h>
+#else
+#include <asm-generic/int-ll64.h>
+#endif
+
+#endif /* _UAPI_ALPHA_TYPES_H */
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
new file mode 100644
index 000000000..71fd5db06
--- /dev/null
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ALPHA_UNISTD_H
+#define _UAPI_ALPHA_UNISTD_H
+
+/* These are traditionally the names linux-alpha uses for
+ * the two otherwise generic system calls */
+#define __NR_umount	__NR_umount2
+#define __NR_osf_shmat	__NR_shmat
+
+/* These return an extra value but can be used as aliases */
+#define __NR_getpid	__NR_getxpid
+#define __NR_getuid	__NR_getxuid
+#define __NR_getgid	__NR_getxgid
+
+#include <asm/unistd_32.h>
+
+#endif /* _UAPI_ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/.gitignore b/arch/alpha/kernel/.gitignore
new file mode 100644
index 000000000..bbb90f92d
--- /dev/null
+++ b/arch/alpha/kernel/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+vmlinux.lds
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
new file mode 100644
index 000000000..fb4efec7c
--- /dev/null
+++ b/arch/alpha/kernel/Makefile
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the linux kernel.
+#
+
+extra-y		:= vmlinux.lds
+asflags-y	:= $(KBUILD_CFLAGS)
+ccflags-y	:= -Wno-sign-compare
+
+obj-y    := head.o entry.o traps.o process.o osf_sys.o irq.o \
+	    irq_alpha.o signal.o setup.o ptrace.o time.o \
+	    systbls.o err_common.o io.o bugs.o termios.o
+
+obj-$(CONFIG_VGA_HOSE)	+= console.o
+obj-$(CONFIG_SMP)	+= smp.o
+obj-$(CONFIG_PCI)	+= pci.o pci_iommu.o pci-sysfs.o
+obj-$(CONFIG_SRM_ENV)	+= srm_env.o
+obj-$(CONFIG_MODULES)	+= module.o
+obj-$(CONFIG_PERF_EVENTS) += perf_event.o
+obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o
+obj-$(CONFIG_AUDIT)	+= audit.o
+
+ifdef CONFIG_ALPHA_GENERIC
+
+obj-y 	 += core_apecs.o core_cia.o core_irongate.o core_lca.o \
+	    core_mcpcia.o core_polaris.o core_t2.o \
+	    core_tsunami.o
+
+obj-y	 += sys_alcor.o sys_cabriolet.o sys_dp264.o sys_eb64p.o sys_eiger.o \
+	    sys_jensen.o sys_miata.o sys_mikasa.o sys_nautilus.o \
+	    sys_noritake.o sys_rawhide.o sys_ruffian.o sys_rx164.o \
+	    sys_sable.o sys_sio.o sys_sx164.o sys_takara.o
+
+ifndef CONFIG_ALPHA_LEGACY_START_ADDRESS
+obj-y	 += core_marvel.o core_titan.o core_wildfire.o
+obj-y	 += sys_marvel.o sys_titan.o sys_wildfire.o
+obj-y    += err_ev7.o err_titan.o err_marvel.o
+endif
+
+obj-y	 += irq_pyxis.o irq_i8259.o irq_srm.o
+obj-y	 += err_ev6.o
+obj-y	 += es1888.o smc37c669.o smc37c93x.o pc873xx.o gct.o
+obj-y    += srmcons.o
+
+else
+
+# Misc support
+obj-$(CONFIG_ALPHA_SRM)		+= srmcons.o
+
+# Core logic support
+obj-$(CONFIG_ALPHA_APECS)	+= core_apecs.o
+obj-$(CONFIG_ALPHA_CIA)		+= core_cia.o
+obj-$(CONFIG_ALPHA_IRONGATE)	+= core_irongate.o
+obj-$(CONFIG_ALPHA_LCA)		+= core_lca.o
+obj-$(CONFIG_ALPHA_MARVEL)	+= core_marvel.o gct.o
+obj-$(CONFIG_ALPHA_MCPCIA)	+= core_mcpcia.o
+obj-$(CONFIG_ALPHA_POLARIS)	+= core_polaris.o
+obj-$(CONFIG_ALPHA_T2)		+= core_t2.o
+obj-$(CONFIG_ALPHA_TSUNAMI)	+= core_tsunami.o
+obj-$(CONFIG_ALPHA_TITAN)	+= core_titan.o
+obj-$(CONFIG_ALPHA_WILDFIRE)	+= core_wildfire.o
+
+# Board support
+obj-$(CONFIG_ALPHA_ALCOR)	+= sys_alcor.o irq_i8259.o irq_srm.o
+obj-$(CONFIG_ALPHA_CABRIOLET)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
+				   pc873xx.o
+obj-$(CONFIG_ALPHA_EB164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
+				   pc873xx.o
+obj-$(CONFIG_ALPHA_EB66P)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
+				   pc873xx.o
+obj-$(CONFIG_ALPHA_LX164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
+				   smc37c93x.o
+obj-$(CONFIG_ALPHA_PC164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
+				   smc37c93x.o
+obj-$(CONFIG_ALPHA_DP264)	+= sys_dp264.o irq_i8259.o es1888.o smc37c669.o
+obj-$(CONFIG_ALPHA_SHARK)	+= sys_dp264.o irq_i8259.o es1888.o smc37c669.o
+obj-$(CONFIG_ALPHA_TITAN)	+= sys_titan.o irq_i8259.o smc37c669.o
+obj-$(CONFIG_ALPHA_EB64P)	+= sys_eb64p.o irq_i8259.o
+obj-$(CONFIG_ALPHA_EB66)	+= sys_eb64p.o irq_i8259.o
+obj-$(CONFIG_ALPHA_EIGER)	+= sys_eiger.o irq_i8259.o
+obj-$(CONFIG_ALPHA_JENSEN)	+= sys_jensen.o pci-noop.o irq_i8259.o
+obj-$(CONFIG_ALPHA_MARVEL)	+= sys_marvel.o 
+obj-$(CONFIG_ALPHA_MIATA)	+= sys_miata.o irq_pyxis.o irq_i8259.o \
+				   es1888.o smc37c669.o
+obj-$(CONFIG_ALPHA_MIKASA)	+= sys_mikasa.o irq_i8259.o irq_srm.o
+obj-$(CONFIG_ALPHA_NAUTILUS)	+= sys_nautilus.o irq_i8259.o irq_srm.o
+obj-$(CONFIG_ALPHA_NORITAKE)	+= sys_noritake.o irq_i8259.o
+obj-$(CONFIG_ALPHA_RAWHIDE)	+= sys_rawhide.o irq_i8259.o
+obj-$(CONFIG_ALPHA_RUFFIAN)	+= sys_ruffian.o irq_pyxis.o irq_i8259.o
+obj-$(CONFIG_ALPHA_RX164)	+= sys_rx164.o irq_i8259.o
+obj-$(CONFIG_ALPHA_SABLE)	+= sys_sable.o
+obj-$(CONFIG_ALPHA_LYNX)	+= sys_sable.o
+obj-$(CONFIG_ALPHA_BOOK1)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_AVANTI)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_NONAME)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_P2K)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_XL)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_SX164)	+= sys_sx164.o irq_pyxis.o irq_i8259.o \
+				   irq_srm.o smc37c669.o
+obj-$(CONFIG_ALPHA_TAKARA)	+= sys_takara.o irq_i8259.o pc873xx.o
+obj-$(CONFIG_ALPHA_WILDFIRE)	+= sys_wildfire.o irq_i8259.o
+
+# Error support
+obj-$(CONFIG_ALPHA_MARVEL)	+= err_ev7.o err_marvel.o
+obj-$(CONFIG_ALPHA_NAUTILUS)	+= err_ev6.o
+obj-$(CONFIG_ALPHA_TITAN)	+= err_ev6.o err_titan.o
+
+endif # GENERIC
diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c
new file mode 100644
index 000000000..2e125e5c1
--- /dev/null
+++ b/arch/alpha/kernel/asm-offsets.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/kbuild.h>
+#include <asm/io.h>
+
+void foo(void)
+{
+	DEFINE(TI_TASK, offsetof(struct thread_info, task));
+	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+	BLANK();
+
+        DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
+        DEFINE(TASK_CRED, offsetof(struct task_struct, cred));
+        DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
+        DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader));
+        DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
+        BLANK();
+
+        DEFINE(CRED_UID,  offsetof(struct cred, uid));
+        DEFINE(CRED_EUID, offsetof(struct cred, euid));
+        DEFINE(CRED_GID,  offsetof(struct cred, gid));
+        DEFINE(CRED_EGID, offsetof(struct cred, egid));
+        BLANK();
+
+	DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
+	DEFINE(PT_PTRACED, PT_PTRACED);
+	DEFINE(CLONE_VM, CLONE_VM);
+	DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
+	DEFINE(SIGCHLD, SIGCHLD);
+	BLANK();
+
+	DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
+	DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
+}
diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c
new file mode 100644
index 000000000..3ab047097
--- /dev/null
+++ b/arch/alpha/kernel/audit.c
@@ -0,0 +1,62 @@
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/audit.h>
+#include <asm/unistd.h>
+
+static unsigned dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+static unsigned read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+static unsigned write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+static unsigned chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+static unsigned signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int audit_classify_arch(int arch)
+{
+	return 0;
+}
+
+int audit_classify_syscall(int abi, unsigned syscall)
+{
+	switch(syscall) {
+	case __NR_open:
+		return AUDITSC_OPEN;
+	case __NR_openat:
+		return AUDITSC_OPENAT;
+	case __NR_execve:
+		return AUDITSC_EXECVE;
+	case __NR_openat2:
+		return AUDITSC_OPENAT2;
+	default:
+		return AUDITSC_NATIVE;
+	}
+}
+
+static int __init audit_classes_init(void)
+{
+	audit_register_class(AUDIT_CLASS_WRITE, write_class);
+	audit_register_class(AUDIT_CLASS_READ, read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
+	return 0;
+}
+
+__initcall(audit_classes_init);
diff --git a/arch/alpha/kernel/bugs.c b/arch/alpha/kernel/bugs.c
new file mode 100644
index 000000000..08cc10d7f
--- /dev/null
+++ b/arch/alpha/kernel/bugs.c
@@ -0,0 +1,45 @@
+
+#include <asm/hwrpb.h>
+#include <linux/device.h>
+
+
+#ifdef CONFIG_SYSFS
+
+static int cpu_is_ev6_or_later(void)
+{
+	struct percpu_struct *cpu;
+        unsigned long cputype;
+
+        cpu = (struct percpu_struct *)((char *)hwrpb + hwrpb->processor_offset);
+        cputype = cpu->type & 0xffffffff;
+        /* Include all of EV6, EV67, EV68, EV7, EV79 and EV69. */
+        return (cputype == EV6_CPU) || ((cputype >= EV67_CPU) && (cputype <= EV69_CPU));
+}
+
+ssize_t cpu_show_meltdown(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	if (cpu_is_ev6_or_later())
+		return sprintf(buf, "Vulnerable\n");
+	else
+		return sprintf(buf, "Not affected\n");
+}
+
+ssize_t cpu_show_spectre_v1(struct device *dev,
+                            struct device_attribute *attr, char *buf)
+{
+	if (cpu_is_ev6_or_later())
+		return sprintf(buf, "Vulnerable\n");
+	else
+		return sprintf(buf, "Not affected\n");
+}
+
+ssize_t cpu_show_spectre_v2(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	if (cpu_is_ev6_or_later())
+		return sprintf(buf, "Vulnerable\n");
+	else
+		return sprintf(buf, "Not affected\n");
+}
+#endif
diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c
new file mode 100644
index 000000000..547627932
--- /dev/null
+++ b/arch/alpha/kernel/console.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/console.c
+ *
+ * Architecture-specific specific support for VGA device on 
+ * non-0 I/O hose
+ */
+
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/vt.h>
+#include <asm/vga.h>
+#include <asm/machvec.h>
+
+#include "pci_impl.h"
+
+#ifdef CONFIG_VGA_HOSE
+
+struct pci_controller *pci_vga_hose;
+static struct resource alpha_vga = {
+	.name	= "alpha-vga+",
+	.flags	= IORESOURCE_IO,
+	.start	= 0x3C0,
+	.end	= 0x3DF
+};
+
+static struct pci_controller * __init 
+default_vga_hose_select(struct pci_controller *h1, struct pci_controller *h2)
+{
+	if (h2->index < h1->index)
+		return h2;
+
+	return h1;
+}
+
+void __init 
+locate_and_init_vga(void *(*sel_func)(void *, void *))
+{
+	struct pci_controller *hose = NULL;
+	struct pci_dev *dev = NULL;
+
+	/* Default the select function */
+	if (!sel_func) sel_func = (void *)default_vga_hose_select;
+
+	/* Find the console VGA device */
+	for(dev=NULL; (dev=pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, dev));) {
+		if (!hose)
+			hose = dev->sysdata;
+		else
+			hose = sel_func(hose, dev->sysdata);
+	}
+
+	/* Did we already initialize the correct one? Is there one? */
+	if (!hose || (conswitchp == &vga_con && pci_vga_hose == hose))
+		return;
+
+	/* Create a new VGA ioport resource WRT the hose it is on. */
+	alpha_vga.start += hose->io_space->start;
+	alpha_vga.end += hose->io_space->start;
+	request_resource(hose->io_space, &alpha_vga);
+
+	/* Set the VGA hose and init the new console. */
+	pci_vga_hose = hose;
+	console_lock();
+	do_take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1);
+	console_unlock();
+}
+
+void __init
+find_console_vga_hose(void)
+{
+	u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
+
+	if (pu64[7] == 3) {	/* TERM_TYPE == graphics */
+		struct pci_controller *hose;
+		int h = (pu64[30] >> 24) & 0xff;	/* console hose # */
+
+		/*
+		 * Our hose numbering DOES match the console's, so find
+		 * the right one...
+		 */
+		for (hose = hose_head; hose; hose = hose->next) {
+			if (hose->index == h) break;
+		}
+
+		if (hose) {
+			printk("Console graphics on hose %d\n", h);
+			pci_vga_hose = hose;
+		}
+	}
+}
+
+#endif
diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c
new file mode 100644
index 000000000..6df765ff2
--- /dev/null
+++ b/arch/alpha/kernel/core_apecs.c
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_apecs.c
+ *
+ * Rewritten for Apecs from the lca.c from:
+ *
+ * Written by David Mosberger (davidm@cs.arizona.edu) with some code
+ * taken from Dave Rusling's (david.rusling@reo.mts.dec.com) 32-bit
+ * bios code.
+ *
+ * Code common to all APECS core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/smp.h>
+#include <asm/mce.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/*
+ * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
+ * One plausible explanation is that the i/o controller does not properly
+ * handle the system transaction.  Another involves timing.  Ho hum.
+ */
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBGC(args)	printk args
+#else
+# define DBGC(args)
+#endif
+
+#define vuip	volatile unsigned int  *
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address and setup the APECS_HAXR2 register
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Type 0:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | | | | | | | | | | | | | | |F|F|F|R|R|R|R|R|R|0|0|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:11	Device select bit.
+ * 	10:8	Function number
+ * 	 7:2	Register number
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBGC(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x,"
+	      " pci_addr=0x%p, type1=0x%p)\n",
+	      bus, device_fn, where, pci_addr, type1));
+
+	if (bus == 0) {
+		int device = device_fn >> 3;
+
+		/* type 0 configuration cycle: */
+
+		if (device > 20) {
+			DBGC(("mk_conf_addr: device (%d) > 20, returning -1\n",
+			      device));
+			return -1;
+		}
+
+		*type1 = 0;
+		addr = (device_fn << 8) | (where);
+	} else {
+		/* type 1 configuration cycle: */
+		*type1 = 1;
+		addr = (bus << 16) | (device_fn << 8) | (where);
+	}
+	*pci_addr = addr;
+	DBGC(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static unsigned int
+conf_read(unsigned long addr, unsigned char type1)
+{
+	unsigned long flags;
+	unsigned int stat0, value;
+	unsigned int haxr2 = 0;
+
+	local_irq_save(flags);	/* avoid getting hit by machine check */
+
+	DBGC(("conf_read(addr=0x%lx, type1=%d)\n", addr, type1));
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vuip)APECS_IOC_DCSR;
+	*(vuip)APECS_IOC_DCSR = stat0;
+	mb();
+	DBGC(("conf_read: APECS DCSR was 0x%x\n", stat0));
+
+	/* If Type1 access, must set HAE #2. */
+	if (type1) {
+		haxr2 = *(vuip)APECS_IOC_HAXR2;
+		mb();
+		*(vuip)APECS_IOC_HAXR2 = haxr2 | 1;
+		DBGC(("conf_read: TYPE1 access\n"));
+	}
+
+	draina();
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+
+	/* Access configuration space.  */
+
+	/* Some SRMs step on these registers during a machine check.  */
+	asm volatile("ldl %0,%1; mb; mb" : "=r"(value) : "m"(*(vuip)addr)
+		     : "$9", "$10", "$11", "$12", "$13", "$14", "memory");
+
+	if (mcheck_taken(0)) {
+		mcheck_taken(0) = 0;
+		value = 0xffffffffU;
+		mb();
+	}
+	mcheck_expected(0) = 0;
+	mb();
+
+#if 1
+	/*
+	 * david.rusling@reo.mts.dec.com.  This code is needed for the
+	 * EB64+ as it does not generate a machine check (why I don't
+	 * know).  When we build kernels for one particular platform
+	 * then we can make this conditional on the type.
+	 */
+	draina();
+
+	/* Now look for any errors.  */
+	stat0 = *(vuip)APECS_IOC_DCSR;
+	DBGC(("conf_read: APECS DCSR after read 0x%x\n", stat0));
+
+	/* Is any error bit set? */
+	if (stat0 & 0xffe0U) {
+		/* If not NDEV, print status.  */
+		if (!(stat0 & 0x0800)) {
+			printk("apecs.c:conf_read: got stat0=%x\n", stat0);
+		}
+
+		/* Reset error status.  */
+		*(vuip)APECS_IOC_DCSR = stat0;
+		mb();
+		wrmces(0x7);			/* reset machine check */
+		value = 0xffffffff;
+	}
+#endif
+
+	/* If Type1 access, must reset HAE #2 so normal IO space ops work.  */
+	if (type1) {
+		*(vuip)APECS_IOC_HAXR2 = haxr2 & ~1;
+		mb();
+	}
+	local_irq_restore(flags);
+
+	return value;
+}
+
+static void
+conf_write(unsigned long addr, unsigned int value, unsigned char type1)
+{
+	unsigned long flags;
+	unsigned int stat0;
+	unsigned int haxr2 = 0;
+
+	local_irq_save(flags);	/* avoid getting hit by machine check */
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vuip)APECS_IOC_DCSR;
+	*(vuip)APECS_IOC_DCSR = stat0;
+	mb();
+
+	/* If Type1 access, must set HAE #2. */
+	if (type1) {
+		haxr2 = *(vuip)APECS_IOC_HAXR2;
+		mb();
+		*(vuip)APECS_IOC_HAXR2 = haxr2 | 1;
+	}
+
+	draina();
+	mcheck_expected(0) = 1;
+	mb();
+
+	/* Access configuration space.  */
+	*(vuip)addr = value;
+	mb();
+	mb();  /* magic */
+	mcheck_expected(0) = 0;
+	mb();
+
+#if 1
+	/*
+	 * david.rusling@reo.mts.dec.com.  This code is needed for the
+	 * EB64+ as it does not generate a machine check (why I don't
+	 * know).  When we build kernels for one particular platform
+	 * then we can make this conditional on the type.
+	 */
+	draina();
+
+	/* Now look for any errors.  */
+	stat0 = *(vuip)APECS_IOC_DCSR;
+
+	/* Is any error bit set? */
+	if (stat0 & 0xffe0U) {
+		/* If not NDEV, print status.  */
+		if (!(stat0 & 0x0800)) {
+			printk("apecs.c:conf_write: got stat0=%x\n", stat0);
+		}
+
+		/* Reset error status.  */
+		*(vuip)APECS_IOC_DCSR = stat0;
+		mb();
+		wrmces(0x7);			/* reset machine check */
+	}
+#endif
+
+	/* If Type1 access, must reset HAE #2 so normal IO space ops work.  */
+	if (type1) {
+		*(vuip)APECS_IOC_HAXR2 = haxr2 & ~1;
+		mb();
+	}
+	local_irq_restore(flags);
+}
+
+static int
+apecs_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		  int size, u32 *value)
+{
+	unsigned long addr, pci_addr;
+	unsigned char type1;
+	long mask;
+	int shift;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	shift = (where & 3) * 8;
+	addr = (pci_addr << 5) + mask + APECS_CONF;
+	*value = conf_read(addr, type1) >> (shift);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+apecs_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		   int size, u32 value)
+{
+	unsigned long addr, pci_addr;
+	unsigned char type1;
+	long mask;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	addr = (pci_addr << 5) + mask + APECS_CONF;
+	conf_write(addr, value << ((where & 3) * 8), type1);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops apecs_pci_ops = 
+{
+	.read =		apecs_read_config,
+	.write =	apecs_write_config,
+};
+
+void
+apecs_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	wmb();
+	*(vip)APECS_IOC_TBIA = 0;
+	mb();
+}
+
+void __init
+apecs_init_arch(void)
+{
+	struct pci_controller *hose;
+
+	/*
+	 * Create our single hose.
+	 */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	hose->sparse_mem_base = APECS_SPARSE_MEM - IDENT_ADDR;
+	hose->dense_mem_base = APECS_DENSE_MEM - IDENT_ADDR;
+	hose->sparse_io_base = APECS_IO - IDENT_ADDR;
+	hose->dense_io_base = 0;
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Window 1 is direct access 1GB at 1GB
+	 * Window 2 is scatter-gather 8MB at 8MB (for isa)
+	 */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci = NULL;
+	__direct_map_base = 0x40000000;
+	__direct_map_size = 0x40000000;
+
+	*(vuip)APECS_IOC_PB1R = __direct_map_base | 0x00080000;
+	*(vuip)APECS_IOC_PM1R = (__direct_map_size - 1) & 0xfff00000U;
+	*(vuip)APECS_IOC_TB1R = 0;
+
+	*(vuip)APECS_IOC_PB2R = hose->sg_isa->dma_base | 0x000c0000;
+	*(vuip)APECS_IOC_PM2R = (hose->sg_isa->size - 1) & 0xfff00000;
+	*(vuip)APECS_IOC_TB2R = virt_to_phys(hose->sg_isa->ptes) >> 1;
+
+	apecs_pci_tbi(hose, 0, -1);
+
+	/*
+	 * Finally, clear the HAXR2 register, which gets used
+	 * for PCI Config Space accesses. That is the way
+	 * we want to use it, and we do not want to depend on
+	 * what ARC or SRM might have left behind...
+	 */
+	*(vuip)APECS_IOC_HAXR2 = 0;
+	mb();
+}
+
+void
+apecs_pci_clr_err(void)
+{
+	unsigned int jd;
+
+	jd = *(vuip)APECS_IOC_DCSR;
+	if (jd & 0xffe0L) {
+		*(vuip)APECS_IOC_SEAR;
+		*(vuip)APECS_IOC_DCSR = jd | 0xffe1L;
+		mb();
+		*(vuip)APECS_IOC_DCSR;
+	}
+	*(vuip)APECS_IOC_TBIA = (unsigned int)APECS_IOC_TBIA;
+	mb();
+	*(vuip)APECS_IOC_TBIA;
+}
+
+void
+apecs_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_common *mchk_header;
+	struct el_apecs_procdata *mchk_procdata;
+	struct el_apecs_sysdata_mcheck *mchk_sysdata;
+
+	mchk_header = (struct el_common *)la_ptr;
+
+	mchk_procdata = (struct el_apecs_procdata *)
+		(la_ptr + mchk_header->proc_offset
+		 - sizeof(mchk_procdata->paltemp));
+
+	mchk_sysdata = (struct el_apecs_sysdata_mcheck *)
+		(la_ptr + mchk_header->sys_offset);
+
+
+	/* Clear the error before any reporting.  */
+	mb();
+	mb(); /* magic */
+	draina();
+	apecs_pci_clr_err();
+	wrmces(0x7);		/* reset machine check pending flag */
+	mb();
+
+	process_mcheck_info(vector, la_ptr, "APECS",
+			    (mcheck_expected(0)
+			     && (mchk_sysdata->epic_dcsr & 0x0c00UL)));
+}
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
new file mode 100644
index 000000000..f48917020
--- /dev/null
+++ b/arch/alpha/kernel/core_cia.c
@@ -0,0 +1,1216 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_cia.c
+ *
+ * Written by David A Rusling (david.rusling@reo.mts.dec.com).
+ * December 1995.
+ *
+ *	Copyright (C) 1995  David A Rusling
+ *	Copyright (C) 1997, 1998  Jay Estabrook
+ *	Copyright (C) 1998, 1999, 2000  Richard Henderson
+ *
+ * Code common to all CIA core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_cia.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/memblock.h>
+
+#include <asm/ptrace.h>
+#include <asm/mce.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+/*
+ * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
+ * One plausible explanation is that the i/o controller does not properly
+ * handle the system transaction.  Another involves timing.  Ho hum.
+ */
+
+#define DEBUG_CONFIG 0
+#if DEBUG_CONFIG
+# define DBGC(args)	printk args
+#else
+# define DBGC(args)
+#endif
+
+#define vip	volatile int  *
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address.  It is therefore not safe to have
+ * concurrent invocations to configuration space access routines, but
+ * there really shouldn't be any need for this.
+ *
+ * Type 0:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:11	Device select bit.
+ * 	10:8	Function number
+ * 	 7:2	Register number
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *bus_dev, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	u8 bus = bus_dev->number;
+
+	*type1 = (bus != 0);
+	*pci_addr = (bus << 16) | (device_fn << 8) | where;
+
+	DBGC(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x,"
+	      " returning address 0x%p\n"
+	      bus, device_fn, where, *pci_addr));
+
+	return 0;
+}
+
+static unsigned int
+conf_read(unsigned long addr, unsigned char type1)
+{
+	unsigned long flags;
+	int stat0, value;
+	int cia_cfg = 0;
+
+	DBGC(("conf_read(addr=0x%lx, type1=%d) ", addr, type1));
+	local_irq_save(flags);
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vip)CIA_IOC_CIA_ERR;
+	*(vip)CIA_IOC_CIA_ERR = stat0;
+	mb();
+	*(vip)CIA_IOC_CIA_ERR; /* re-read to force write */
+
+	/* If Type1 access, must set CIA CFG. */
+	if (type1) {
+		cia_cfg = *(vip)CIA_IOC_CFG;
+		*(vip)CIA_IOC_CFG = (cia_cfg & ~3) | 1;
+		mb();
+		*(vip)CIA_IOC_CFG;
+	}
+
+	mb();
+	draina();
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+
+	/* Access configuration space.  */
+	value = *(vip)addr;
+	mb();
+	mb();  /* magic */
+	if (mcheck_taken(0)) {
+		mcheck_taken(0) = 0;
+		value = 0xffffffff;
+		mb();
+	}
+	mcheck_expected(0) = 0;
+	mb();
+
+	/* If Type1 access, must reset IOC CFG so normal IO space ops work.  */
+	if (type1) {
+		*(vip)CIA_IOC_CFG = cia_cfg;
+		mb();
+		*(vip)CIA_IOC_CFG;
+	}
+
+	local_irq_restore(flags);
+	DBGC(("done\n"));
+
+	return value;
+}
+
+static void
+conf_write(unsigned long addr, unsigned int value, unsigned char type1)
+{
+	unsigned long flags;
+	int stat0, cia_cfg = 0;
+
+	DBGC(("conf_write(addr=0x%lx, type1=%d) ", addr, type1));
+	local_irq_save(flags);
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vip)CIA_IOC_CIA_ERR;
+	*(vip)CIA_IOC_CIA_ERR = stat0;
+	mb();
+	*(vip)CIA_IOC_CIA_ERR; /* re-read to force write */
+
+	/* If Type1 access, must set CIA CFG.  */
+	if (type1) {
+		cia_cfg = *(vip)CIA_IOC_CFG;
+		*(vip)CIA_IOC_CFG = (cia_cfg & ~3) | 1;
+		mb();
+		*(vip)CIA_IOC_CFG;
+	}
+
+	mb();
+	draina();
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+
+	/* Access configuration space.  */
+	*(vip)addr = value;
+	mb();
+	*(vip)addr; /* read back to force the write */
+
+	mcheck_expected(0) = 0;
+	mb();
+
+	/* If Type1 access, must reset IOC CFG so normal IO space ops work.  */
+	if (type1) {
+		*(vip)CIA_IOC_CFG = cia_cfg;
+		mb();
+		*(vip)CIA_IOC_CFG;
+	}
+
+	local_irq_restore(flags);
+	DBGC(("done\n"));
+}
+
+static int 
+cia_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size,
+		u32 *value)
+{
+	unsigned long addr, pci_addr;
+	long mask;
+	unsigned char type1;
+	int shift;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	shift = (where & 3) * 8;
+	addr = (pci_addr << 5) + mask + CIA_CONF;
+	*value = conf_read(addr, type1) >> (shift);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+cia_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size,
+		 u32 value)
+{
+	unsigned long addr, pci_addr;
+	long mask;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	addr = (pci_addr << 5) + mask + CIA_CONF;
+	conf_write(addr, value << ((where & 3) * 8), type1);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops cia_pci_ops = 
+{
+	.read = 	cia_read_config,
+	.write =	cia_write_config,
+};
+
+/*
+ * CIA Pass 1 and PYXIS Pass 1 and 2 have a broken scatter-gather tlb.
+ * It cannot be invalidated.  Rather than hard code the pass numbers,
+ * actually try the tbia to see if it works.
+ */
+
+void
+cia_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	wmb();
+	*(vip)CIA_IOC_PCI_TBIA = 3;	/* Flush all locked and unlocked.  */
+	mb();
+	*(vip)CIA_IOC_PCI_TBIA;
+}
+
+/*
+ * On PYXIS, even if the tbia works, we cannot use it. It effectively locks
+ * the chip (as well as direct write to the tag registers) if there is a
+ * SG DMA operation in progress. This is true at least for PYXIS rev. 1,
+ * so always use the method below.
+ */
+/*
+ * This is the method NT and NetBSD use.
+ *
+ * Allocate mappings, and put the chip into DMA loopback mode to read a
+ * garbage page.  This works by causing TLB misses, causing old entries to
+ * be purged to make room for the new entries coming in for the garbage page.
+ */
+
+#define CIA_BROKEN_TBIA_BASE	0x30000000
+#define CIA_BROKEN_TBIA_SIZE	1024
+
+/* Always called with interrupts disabled */
+void
+cia_pci_tbi_try2(struct pci_controller *hose,
+		 dma_addr_t start, dma_addr_t end)
+{
+	void __iomem *bus_addr;
+	int ctrl;
+
+	/* Put the chip into PCI loopback mode.  */
+	mb();
+	ctrl = *(vip)CIA_IOC_CIA_CTRL;
+	*(vip)CIA_IOC_CIA_CTRL = ctrl | CIA_CTRL_PCI_LOOP_EN;
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL;
+	mb();
+
+	/* Read from PCI dense memory space at TBI_ADDR, skipping 32k on
+	   each read.  This forces SG TLB misses.  NetBSD claims that the
+	   TLB entries are not quite LRU, meaning that we need to read more
+	   times than there are actual tags.  The 2117x docs claim strict
+	   round-robin.  Oh well, we've come this far...  */
+	/* Even better - as seen on the PYXIS rev 1 the TLB tags 0-3 can
+	   be filled by the TLB misses *only once* after being invalidated
+	   (by tbia or direct write). Next misses won't update them even
+	   though the lock bits are cleared. Tags 4-7 are "quite LRU" though,
+	   so use them and read at window 3 base exactly 4 times. Reading
+	   more sometimes makes the chip crazy.  -ink */
+
+	bus_addr = cia_ioremap(CIA_BROKEN_TBIA_BASE, 32768 * 4);
+
+	cia_readl(bus_addr + 0x00000);
+	cia_readl(bus_addr + 0x08000);
+	cia_readl(bus_addr + 0x10000);
+	cia_readl(bus_addr + 0x18000);
+
+	cia_iounmap(bus_addr);
+
+	/* Restore normal PCI operation.  */
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL = ctrl;
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL;
+	mb();
+}
+
+static inline void
+cia_prepare_tbia_workaround(int window)
+{
+	unsigned long *ppte, pte;
+	long i;
+
+	/* Use minimal 1K map. */
+	ppte = memblock_alloc(CIA_BROKEN_TBIA_SIZE, 32768);
+	if (!ppte)
+		panic("%s: Failed to allocate %u bytes align=0x%x\n",
+		      __func__, CIA_BROKEN_TBIA_SIZE, 32768);
+	pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1;
+
+	for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i)
+		ppte[i] = pte;
+
+	*(vip)CIA_IOC_PCI_Wn_BASE(window) = CIA_BROKEN_TBIA_BASE | 3;
+	*(vip)CIA_IOC_PCI_Wn_MASK(window)
+	  = (CIA_BROKEN_TBIA_SIZE*1024 - 1) & 0xfff00000;
+	*(vip)CIA_IOC_PCI_Tn_BASE(window) = virt_to_phys(ppte) >> 2;
+}
+
+static void __init
+verify_tb_operation(void)
+{
+	static int page[PAGE_SIZE/4]
+		__attribute__((aligned(PAGE_SIZE)))
+		__initdata = { 0 };
+
+	struct pci_iommu_arena *arena = pci_isa_hose->sg_isa;
+	int ctrl, addr0, tag0, pte0, data0;
+	int temp, use_tbia_try2 = 0;
+	void __iomem *bus_addr;
+
+	/* pyxis -- tbia is broken */
+	if (pci_isa_hose->dense_io_base)
+		use_tbia_try2 = 1;
+
+	/* Put the chip into PCI loopback mode.  */
+	mb();
+	ctrl = *(vip)CIA_IOC_CIA_CTRL;
+	*(vip)CIA_IOC_CIA_CTRL = ctrl | CIA_CTRL_PCI_LOOP_EN;
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL;
+	mb();
+
+	/* Write a valid entry directly into the TLB registers.  */
+
+	addr0 = arena->dma_base;
+	tag0 = addr0 | 1;
+	pte0 = (virt_to_phys(page) >> (PAGE_SHIFT - 1)) | 1;
+
+	*(vip)CIA_IOC_TB_TAGn(0) = tag0;
+	*(vip)CIA_IOC_TB_TAGn(1) = 0;
+	*(vip)CIA_IOC_TB_TAGn(2) = 0;
+	*(vip)CIA_IOC_TB_TAGn(3) = 0;
+	*(vip)CIA_IOC_TB_TAGn(4) = 0;
+	*(vip)CIA_IOC_TB_TAGn(5) = 0;
+	*(vip)CIA_IOC_TB_TAGn(6) = 0;
+	*(vip)CIA_IOC_TB_TAGn(7) = 0;
+	*(vip)CIA_IOC_TBn_PAGEm(0,0) = pte0;
+	*(vip)CIA_IOC_TBn_PAGEm(0,1) = 0;
+	*(vip)CIA_IOC_TBn_PAGEm(0,2) = 0;
+	*(vip)CIA_IOC_TBn_PAGEm(0,3) = 0;
+	mb();
+
+	/* Get a usable bus address */
+	bus_addr = cia_ioremap(addr0, 8*PAGE_SIZE);
+
+	/* First, verify we can read back what we've written.  If
+	   this fails, we can't be sure of any of the other testing
+	   we're going to do, so bail.  */
+	/* ??? Actually, we could do the work with machine checks.
+	   By passing this register update test, we pretty much
+	   guarantee that cia_pci_tbi_try1 works.  If this test
+	   fails, cia_pci_tbi_try2 might still work.  */
+
+	temp = *(vip)CIA_IOC_TB_TAGn(0);
+	if (temp != tag0) {
+		printk("pci: failed tb register update test "
+		       "(tag0 %#x != %#x)\n", temp, tag0);
+		goto failed;
+	}
+	temp = *(vip)CIA_IOC_TB_TAGn(1);
+	if (temp != 0) {
+		printk("pci: failed tb register update test "
+		       "(tag1 %#x != 0)\n", temp);
+		goto failed;
+	}
+	temp = *(vip)CIA_IOC_TBn_PAGEm(0,0);
+	if (temp != pte0) {
+		printk("pci: failed tb register update test "
+		       "(pte0 %#x != %#x)\n", temp, pte0);
+		goto failed;
+	}
+	printk("pci: passed tb register update test\n");
+
+	/* Second, verify we can actually do I/O through this entry.  */
+
+	data0 = 0xdeadbeef;
+	page[0] = data0;
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+	temp = cia_readl(bus_addr);
+	mb();
+	mcheck_expected(0) = 0;
+	mb();
+	if (mcheck_taken(0)) {
+		printk("pci: failed sg loopback i/o read test (mcheck)\n");
+		goto failed;
+	}
+	if (temp != data0) {
+		printk("pci: failed sg loopback i/o read test "
+		       "(%#x != %#x)\n", temp, data0);
+		goto failed;
+	}
+	printk("pci: passed sg loopback i/o read test\n");
+
+	/* Third, try to invalidate the TLB.  */
+
+	if (! use_tbia_try2) {
+		cia_pci_tbi(arena->hose, 0, -1);
+		temp = *(vip)CIA_IOC_TB_TAGn(0);
+		if (temp & 1) {
+			use_tbia_try2 = 1;
+			printk("pci: failed tbia test; workaround available\n");
+		} else {
+			printk("pci: passed tbia test\n");
+		}
+	}
+
+	/* Fourth, verify the TLB snoops the EV5's caches when
+	   doing a tlb fill.  */
+
+	data0 = 0x5adda15e;
+	page[0] = data0;
+	arena->ptes[4] = pte0;
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+	temp = cia_readl(bus_addr + 4*PAGE_SIZE);
+	mb();
+	mcheck_expected(0) = 0;
+	mb();
+	if (mcheck_taken(0)) {
+		printk("pci: failed pte write cache snoop test (mcheck)\n");
+		goto failed;
+	}
+	if (temp != data0) {
+		printk("pci: failed pte write cache snoop test "
+		       "(%#x != %#x)\n", temp, data0);
+		goto failed;
+	}
+	printk("pci: passed pte write cache snoop test\n");
+
+	/* Fifth, verify that a previously invalid PTE entry gets
+	   filled from the page table.  */
+
+	data0 = 0xabcdef12;
+	page[0] = data0;
+	arena->ptes[5] = pte0;
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+	temp = cia_readl(bus_addr + 5*PAGE_SIZE);
+	mb();
+	mcheck_expected(0) = 0;
+	mb();
+	if (mcheck_taken(0)) {
+		printk("pci: failed valid tag invalid pte reload test "
+		       "(mcheck; workaround available)\n");
+		/* Work around this bug by aligning new allocations
+		   on 4 page boundaries.  */
+		arena->align_entry = 4;
+	} else if (temp != data0) {
+		printk("pci: failed valid tag invalid pte reload test "
+		       "(%#x != %#x)\n", temp, data0);
+		goto failed;
+	} else {
+		printk("pci: passed valid tag invalid pte reload test\n");
+	}
+
+	/* Sixth, verify machine checks are working.  Test invalid
+	   pte under the same valid tag as we used above.  */
+
+	mcheck_expected(0) = 1;
+	mcheck_taken(0) = 0;
+	mb();
+	temp = cia_readl(bus_addr + 6*PAGE_SIZE);
+	mb();
+	mcheck_expected(0) = 0;
+	mb();
+	printk("pci: %s pci machine check test\n",
+	       mcheck_taken(0) ? "passed" : "failed");
+
+	/* Clean up after the tests.  */
+	arena->ptes[4] = 0;
+	arena->ptes[5] = 0;
+
+	if (use_tbia_try2) {
+		alpha_mv.mv_pci_tbi = cia_pci_tbi_try2;
+
+		/* Tags 0-3 must be disabled if we use this workaraund. */
+		wmb();
+		*(vip)CIA_IOC_TB_TAGn(0) = 2;
+		*(vip)CIA_IOC_TB_TAGn(1) = 2;
+		*(vip)CIA_IOC_TB_TAGn(2) = 2;
+		*(vip)CIA_IOC_TB_TAGn(3) = 2;
+
+		printk("pci: tbia workaround enabled\n");
+	}
+	alpha_mv.mv_pci_tbi(arena->hose, 0, -1);
+
+exit:
+	/* unmap the bus addr */
+	cia_iounmap(bus_addr);
+
+	/* Restore normal PCI operation.  */
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL = ctrl;
+	mb();
+	*(vip)CIA_IOC_CIA_CTRL;
+	mb();
+	return;
+
+failed:
+	printk("pci: disabling sg translation window\n");
+	*(vip)CIA_IOC_PCI_W0_BASE = 0;
+	*(vip)CIA_IOC_PCI_W1_BASE = 0;
+	pci_isa_hose->sg_isa = NULL;
+	alpha_mv.mv_pci_tbi = NULL;
+	goto exit;
+}
+
+#if defined(ALPHA_RESTORE_SRM_SETUP)
+/* Save CIA configuration data as the console had it set up.  */
+struct 
+{
+    unsigned int hae_mem;
+    unsigned int hae_io;
+    unsigned int pci_dac_offset;
+    unsigned int err_mask;
+    unsigned int cia_ctrl;
+    unsigned int cia_cnfg;
+    struct {
+	unsigned int w_base;
+	unsigned int w_mask;
+	unsigned int t_base;
+    } window[4];
+} saved_config __attribute((common));
+
+void
+cia_save_srm_settings(int is_pyxis)
+{
+	int i;
+
+	/* Save some important registers. */
+	saved_config.err_mask       = *(vip)CIA_IOC_ERR_MASK;
+	saved_config.cia_ctrl       = *(vip)CIA_IOC_CIA_CTRL;
+	saved_config.hae_mem        = *(vip)CIA_IOC_HAE_MEM;
+	saved_config.hae_io         = *(vip)CIA_IOC_HAE_IO;
+	saved_config.pci_dac_offset = *(vip)CIA_IOC_PCI_W_DAC;
+
+	if (is_pyxis)
+	    saved_config.cia_cnfg   = *(vip)CIA_IOC_CIA_CNFG;
+	else
+	    saved_config.cia_cnfg   = 0;
+
+	/* Save DMA windows configuration. */
+	for (i = 0; i < 4; i++) {
+	    saved_config.window[i].w_base = *(vip)CIA_IOC_PCI_Wn_BASE(i);
+	    saved_config.window[i].w_mask = *(vip)CIA_IOC_PCI_Wn_MASK(i);
+	    saved_config.window[i].t_base = *(vip)CIA_IOC_PCI_Tn_BASE(i);
+	}
+	mb();
+}
+
+void
+cia_restore_srm_settings(void)
+{
+	int i;
+
+	for (i = 0; i < 4; i++) {
+	    *(vip)CIA_IOC_PCI_Wn_BASE(i) = saved_config.window[i].w_base;
+	    *(vip)CIA_IOC_PCI_Wn_MASK(i) = saved_config.window[i].w_mask;
+	    *(vip)CIA_IOC_PCI_Tn_BASE(i) = saved_config.window[i].t_base;
+	}
+
+	*(vip)CIA_IOC_HAE_MEM   = saved_config.hae_mem;
+	*(vip)CIA_IOC_HAE_IO    = saved_config.hae_io;
+	*(vip)CIA_IOC_PCI_W_DAC = saved_config.pci_dac_offset;	
+	*(vip)CIA_IOC_ERR_MASK  = saved_config.err_mask;
+	*(vip)CIA_IOC_CIA_CTRL  = saved_config.cia_ctrl;
+
+	if (saved_config.cia_cnfg) /* Must be pyxis. */
+	    *(vip)CIA_IOC_CIA_CNFG  = saved_config.cia_cnfg;
+
+	mb();
+}
+#else /* ALPHA_RESTORE_SRM_SETUP */
+#define cia_save_srm_settings(p)	do {} while (0)
+#define cia_restore_srm_settings()	do {} while (0)
+#endif /* ALPHA_RESTORE_SRM_SETUP */
+
+
+static void __init
+do_init_arch(int is_pyxis)
+{
+	struct pci_controller *hose;
+	int temp, cia_rev, tbia_window;
+
+	cia_rev = *(vip)CIA_IOC_CIA_REV & CIA_REV_MASK;
+	printk("pci: cia revision %d%s\n",
+	       cia_rev, is_pyxis ? " (pyxis)" : "");
+
+	if (alpha_using_srm)
+		cia_save_srm_settings(is_pyxis);
+
+	/* Set up error reporting.  */
+	temp = *(vip)CIA_IOC_ERR_MASK;
+	temp &= ~(CIA_ERR_CPU_PE | CIA_ERR_MEM_NEM | CIA_ERR_PA_PTE_INV
+		  | CIA_ERR_RCVD_MAS_ABT | CIA_ERR_RCVD_TAR_ABT);
+	*(vip)CIA_IOC_ERR_MASK = temp;
+
+	/* Clear all currently pending errors.  */
+	temp = *(vip)CIA_IOC_CIA_ERR;
+	*(vip)CIA_IOC_CIA_ERR = temp;
+
+	/* Turn on mchecks.  */
+	temp = *(vip)CIA_IOC_CIA_CTRL;
+	temp |= CIA_CTRL_FILL_ERR_EN | CIA_CTRL_MCHK_ERR_EN;
+	*(vip)CIA_IOC_CIA_CTRL = temp;
+
+	/* Clear the CFG register, which gets used for PCI config space
+	   accesses.  That is the way we want to use it, and we do not
+	   want to depend on what ARC or SRM might have left behind.  */
+	*(vip)CIA_IOC_CFG = 0;
+ 
+	/* Zero the HAEs.  */
+	*(vip)CIA_IOC_HAE_MEM = 0;
+	*(vip)CIA_IOC_HAE_IO = 0;
+
+	/* For PYXIS, we always use BWX bus and i/o accesses.  To that end,
+	   make sure they're enabled on the controller.  At the same time,
+	   enable the monster window.  */
+	if (is_pyxis) {
+		temp = *(vip)CIA_IOC_CIA_CNFG;
+		temp |= CIA_CNFG_IOA_BWEN | CIA_CNFG_PCI_MWEN;
+		*(vip)CIA_IOC_CIA_CNFG = temp;
+	}
+
+	/* Synchronize with all previous changes.  */
+	mb();
+	*(vip)CIA_IOC_CIA_REV;
+
+	/*
+	 * Create our single hose.
+	 */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	if (! is_pyxis) {
+		struct resource *hae_mem = alloc_resource();
+		hose->mem_space = hae_mem;
+
+		hae_mem->start = 0;
+		hae_mem->end = CIA_MEM_R1_MASK;
+		hae_mem->name = pci_hae0_name;
+		hae_mem->flags = IORESOURCE_MEM;
+
+		if (request_resource(&iomem_resource, hae_mem) < 0)
+			printk(KERN_ERR "Failed to request HAE_MEM\n");
+
+		hose->sparse_mem_base = CIA_SPARSE_MEM - IDENT_ADDR;
+		hose->dense_mem_base = CIA_DENSE_MEM - IDENT_ADDR;
+		hose->sparse_io_base = CIA_IO - IDENT_ADDR;
+		hose->dense_io_base = 0;
+	} else {
+		hose->sparse_mem_base = 0;
+		hose->dense_mem_base = CIA_BW_MEM - IDENT_ADDR;
+		hose->sparse_io_base = 0;
+		hose->dense_io_base = CIA_BW_IO - IDENT_ADDR;
+	}
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Window 0 is S/G 8MB at 8MB (for isa)
+	 * Window 1 is S/G 1MB at 768MB (for tbia) (unused for CIA rev 1)
+	 * Window 2 is direct access 2GB at 2GB
+	 * Window 3 is DAC access 4GB at 8GB (or S/G for tbia if CIA rev 1)
+	 *
+	 * ??? NetBSD hints that page tables must be aligned to 32K,
+	 * possibly due to a hardware bug.  This is over-aligned
+	 * from the 8K alignment one would expect for an 8MB window. 
+	 * No description of what revisions affected.
+	 */
+
+	hose->sg_pci = NULL;
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 32768);
+
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x80000000;
+
+	*(vip)CIA_IOC_PCI_W0_BASE = hose->sg_isa->dma_base | 3;
+	*(vip)CIA_IOC_PCI_W0_MASK = (hose->sg_isa->size - 1) & 0xfff00000;
+	*(vip)CIA_IOC_PCI_T0_BASE = virt_to_phys(hose->sg_isa->ptes) >> 2;
+
+	*(vip)CIA_IOC_PCI_W2_BASE = __direct_map_base | 1;
+	*(vip)CIA_IOC_PCI_W2_MASK = (__direct_map_size - 1) & 0xfff00000;
+	*(vip)CIA_IOC_PCI_T2_BASE = 0 >> 2;
+
+	/* On PYXIS we have the monster window, selected by bit 40, so
+	   there is no need for window3 to be enabled.
+
+	   On CIA, we don't have true arbitrary addressing -- bits <39:32>
+	   are compared against W_DAC.  We can, however, directly map 4GB,
+	   which is better than before.  However, due to assumptions made
+	   elsewhere, we should not claim that we support DAC unless that
+	   4GB covers all of physical memory.
+
+	   On CIA rev 1, apparently W1 and W2 can't be used for SG. 
+	   At least, there are reports that it doesn't work for Alcor. 
+	   In that case, we have no choice but to use W3 for the TBIA 
+	   workaround, which means we can't use DAC at all. */ 
+
+	tbia_window = 1;
+	if (is_pyxis) {
+		*(vip)CIA_IOC_PCI_W3_BASE = 0;
+	} else if (cia_rev == 1) {
+		*(vip)CIA_IOC_PCI_W1_BASE = 0;
+		tbia_window = 3;
+	} else if (max_low_pfn > (0x100000000UL >> PAGE_SHIFT)) {
+		*(vip)CIA_IOC_PCI_W3_BASE = 0;
+	} else {
+		*(vip)CIA_IOC_PCI_W3_BASE = 0x00000000 | 1 | 8;
+		*(vip)CIA_IOC_PCI_W3_MASK = 0xfff00000;
+		*(vip)CIA_IOC_PCI_T3_BASE = 0 >> 2;
+
+		alpha_mv.pci_dac_offset = 0x200000000UL;
+		*(vip)CIA_IOC_PCI_W_DAC = alpha_mv.pci_dac_offset >> 32;
+	}
+
+	/* Prepare workaround for apparently broken tbia. */
+	cia_prepare_tbia_workaround(tbia_window);
+}
+
+void __init
+cia_init_arch(void)
+{
+	do_init_arch(0);
+}
+
+void __init
+pyxis_init_arch(void)
+{
+	/* On pyxis machines we can precisely calculate the
+	   CPU clock frequency using pyxis real time counter.
+	   It's especially useful for SX164 with broken RTC.
+
+	   Both CPU and chipset are driven by the single 16.666M
+	   or 16.667M crystal oscillator. PYXIS_RT_COUNT clock is
+	   66.66 MHz. -ink */
+
+	unsigned int cc0, cc1;
+	unsigned long pyxis_cc;
+
+	__asm__ __volatile__ ("rpcc %0" : "=r"(cc0));
+	pyxis_cc = *(vulp)PYXIS_RT_COUNT;
+	do { } while(*(vulp)PYXIS_RT_COUNT - pyxis_cc < 4096);
+	__asm__ __volatile__ ("rpcc %0" : "=r"(cc1));
+	cc1 -= cc0;
+	hwrpb->cycle_freq = ((cc1 >> 11) * 100000000UL) / 3;
+	hwrpb_update_checksum(hwrpb);
+
+	do_init_arch(1);
+}
+
+void
+cia_kill_arch(int mode)
+{
+	if (alpha_using_srm)
+		cia_restore_srm_settings();
+}
+
+void __init
+cia_init_pci(void)
+{
+	/* Must delay this from init_arch, as we need machine checks.  */
+	verify_tb_operation();
+	common_init_pci();
+}
+
+static inline void
+cia_pci_clr_err(void)
+{
+	int jd;
+
+	jd = *(vip)CIA_IOC_CIA_ERR;
+	*(vip)CIA_IOC_CIA_ERR = jd;
+	mb();
+	*(vip)CIA_IOC_CIA_ERR;		/* re-read to force write.  */
+}
+
+#ifdef CONFIG_VERBOSE_MCHECK
+static void
+cia_decode_pci_error(struct el_CIA_sysdata_mcheck *cia, const char *msg)
+{
+	static const char * const pci_cmd_desc[16] = {
+		"Interrupt Acknowledge", "Special Cycle", "I/O Read",
+		"I/O Write", "Reserved 0x4", "Reserved 0x5", "Memory Read",
+		"Memory Write", "Reserved 0x8", "Reserved 0x9",
+		"Configuration Read", "Configuration Write",
+		"Memory Read Multiple", "Dual Address Cycle",
+		"Memory Read Line", "Memory Write and Invalidate"
+	};
+
+	if (cia->cia_err & (CIA_ERR_COR_ERR
+			    | CIA_ERR_UN_COR_ERR
+			    | CIA_ERR_MEM_NEM
+			    | CIA_ERR_PA_PTE_INV)) {
+		static const char * const window_desc[6] = {
+			"No window active", "Window 0 hit", "Window 1 hit",
+			"Window 2 hit", "Window 3 hit", "Monster window hit"
+		};
+
+		const char *window;
+		const char *cmd;
+		unsigned long addr, tmp;
+		int lock, dac;
+	
+		cmd = pci_cmd_desc[cia->pci_err0 & 0x7];
+		lock = (cia->pci_err0 >> 4) & 1;
+		dac = (cia->pci_err0 >> 5) & 1;
+
+		tmp = (cia->pci_err0 >> 8) & 0x1F;
+		tmp = ffs(tmp);
+		window = window_desc[tmp];
+
+		addr = cia->pci_err1;
+		if (dac) {
+			tmp = *(vip)CIA_IOC_PCI_W_DAC & 0xFFUL;
+			addr |= tmp << 32;
+		}
+
+		printk(KERN_CRIT "CIA machine check: %s\n", msg);
+		printk(KERN_CRIT "  DMA command: %s\n", cmd);
+		printk(KERN_CRIT "  PCI address: %#010lx\n", addr);
+		printk(KERN_CRIT "  %s, Lock: %d, DAC: %d\n",
+		       window, lock, dac);
+	} else if (cia->cia_err & (CIA_ERR_PERR
+				   | CIA_ERR_PCI_ADDR_PE
+				   | CIA_ERR_RCVD_MAS_ABT
+				   | CIA_ERR_RCVD_TAR_ABT
+				   | CIA_ERR_IOA_TIMEOUT)) {
+		static const char * const master_st_desc[16] = {
+			"Idle", "Drive bus", "Address step cycle",
+			"Address cycle", "Data cycle", "Last read data cycle",
+			"Last write data cycle", "Read stop cycle",
+			"Write stop cycle", "Read turnaround cycle",
+			"Write turnaround cycle", "Reserved 0xB",
+			"Reserved 0xC", "Reserved 0xD", "Reserved 0xE",
+			"Unknown state"
+		};
+		static const char * const target_st_desc[16] = {
+			"Idle", "Busy", "Read data cycle", "Write data cycle",
+			"Read stop cycle", "Write stop cycle",
+			"Read turnaround cycle", "Write turnaround cycle",
+			"Read wait cycle", "Write wait cycle",
+			"Reserved 0xA", "Reserved 0xB", "Reserved 0xC",
+			"Reserved 0xD", "Reserved 0xE", "Unknown state"
+		};
+
+		const char *cmd;
+		const char *master, *target;
+		unsigned long addr, tmp;
+		int dac;
+
+		master = master_st_desc[(cia->pci_err0 >> 16) & 0xF];
+		target = target_st_desc[(cia->pci_err0 >> 20) & 0xF];
+		cmd = pci_cmd_desc[(cia->pci_err0 >> 24) & 0xF];
+		dac = (cia->pci_err0 >> 28) & 1;
+
+		addr = cia->pci_err2;
+		if (dac) {
+			tmp = *(volatile int *)CIA_IOC_PCI_W_DAC & 0xFFUL;
+			addr |= tmp << 32;
+		}
+
+		printk(KERN_CRIT "CIA machine check: %s\n", msg);
+		printk(KERN_CRIT "  PCI command: %s\n", cmd);
+		printk(KERN_CRIT "  Master state: %s, Target state: %s\n",
+		       master, target);
+		printk(KERN_CRIT "  PCI address: %#010lx, DAC: %d\n",
+		       addr, dac);
+	} else {
+		printk(KERN_CRIT "CIA machine check: %s\n", msg);
+		printk(KERN_CRIT "  Unknown PCI error\n");
+		printk(KERN_CRIT "  PCI_ERR0 = %#08lx", cia->pci_err0);
+		printk(KERN_CRIT "  PCI_ERR1 = %#08lx", cia->pci_err1);
+		printk(KERN_CRIT "  PCI_ERR2 = %#08lx", cia->pci_err2);
+	}
+}
+
+static void
+cia_decode_mem_error(struct el_CIA_sysdata_mcheck *cia, const char *msg)
+{
+	unsigned long mem_port_addr;
+	unsigned long mem_port_mask;
+	const char *mem_port_cmd;
+	const char *seq_state;
+	const char *set_select;
+	unsigned long tmp;
+
+	/* If this is a DMA command, also decode the PCI bits.  */
+	if ((cia->mem_err1 >> 20) & 1)
+		cia_decode_pci_error(cia, msg);
+	else
+		printk(KERN_CRIT "CIA machine check: %s\n", msg);
+
+	mem_port_addr = cia->mem_err0 & 0xfffffff0;
+	mem_port_addr |= (cia->mem_err1 & 0x83UL) << 32;
+
+	mem_port_mask = (cia->mem_err1 >> 12) & 0xF;
+
+	tmp = (cia->mem_err1 >> 8) & 0xF;
+	tmp |= ((cia->mem_err1 >> 20) & 1) << 4;
+	if ((tmp & 0x1E) == 0x06)
+		mem_port_cmd = "WRITE BLOCK or WRITE BLOCK LOCK";
+	else if ((tmp & 0x1C) == 0x08)
+		mem_port_cmd = "READ MISS or READ MISS MODIFY";
+	else if (tmp == 0x1C)
+		mem_port_cmd = "BC VICTIM";
+	else if ((tmp & 0x1E) == 0x0E)
+		mem_port_cmd = "READ MISS MODIFY";
+	else if ((tmp & 0x1C) == 0x18)
+		mem_port_cmd = "DMA READ or DMA READ MODIFY";
+	else if ((tmp & 0x1E) == 0x12)
+		mem_port_cmd = "DMA WRITE";
+	else
+		mem_port_cmd = "Unknown";
+
+	tmp = (cia->mem_err1 >> 16) & 0xF;
+	switch (tmp) {
+	case 0x0:
+		seq_state = "Idle";
+		break;
+	case 0x1:
+		seq_state = "DMA READ or DMA WRITE";
+		break;
+	case 0x2: case 0x3:
+		seq_state = "READ MISS (or READ MISS MODIFY) with victim";
+		break;
+	case 0x4: case 0x5: case 0x6:
+		seq_state = "READ MISS (or READ MISS MODIFY) with no victim";
+		break;
+	case 0x8: case 0x9: case 0xB:
+		seq_state = "Refresh";
+		break;
+	case 0xC:
+		seq_state = "Idle, waiting for DMA pending read";
+		break;
+	case 0xE: case 0xF:
+		seq_state = "Idle, ras precharge";
+		break;
+	default:
+		seq_state = "Unknown";
+		break;
+	}
+
+	tmp = (cia->mem_err1 >> 24) & 0x1F;
+	switch (tmp) {
+	case 0x00: set_select = "Set 0 selected"; break;
+	case 0x01: set_select = "Set 1 selected"; break;
+	case 0x02: set_select = "Set 2 selected"; break;
+	case 0x03: set_select = "Set 3 selected"; break;
+	case 0x04: set_select = "Set 4 selected"; break;
+	case 0x05: set_select = "Set 5 selected"; break;
+	case 0x06: set_select = "Set 6 selected"; break;
+	case 0x07: set_select = "Set 7 selected"; break;
+	case 0x08: set_select = "Set 8 selected"; break;
+	case 0x09: set_select = "Set 9 selected"; break;
+	case 0x0A: set_select = "Set A selected"; break;
+	case 0x0B: set_select = "Set B selected"; break;
+	case 0x0C: set_select = "Set C selected"; break;
+	case 0x0D: set_select = "Set D selected"; break;
+	case 0x0E: set_select = "Set E selected"; break;
+	case 0x0F: set_select = "Set F selected"; break;
+	case 0x10: set_select = "No set selected"; break;
+	case 0x1F: set_select = "Refresh cycle"; break;
+	default:   set_select = "Unknown"; break;
+	}
+
+	printk(KERN_CRIT "  Memory port command: %s\n", mem_port_cmd);
+	printk(KERN_CRIT "  Memory port address: %#010lx, mask: %#lx\n",
+	       mem_port_addr, mem_port_mask);
+	printk(KERN_CRIT "  Memory sequencer state: %s\n", seq_state);
+	printk(KERN_CRIT "  Memory set: %s\n", set_select);
+}
+
+static void
+cia_decode_ecc_error(struct el_CIA_sysdata_mcheck *cia, const char *msg)
+{
+	long syn;
+	long i;
+	const char *fmt;
+
+	cia_decode_mem_error(cia, msg);
+
+	syn = cia->cia_syn & 0xff;
+	if (syn == (syn & -syn)) {
+		fmt = KERN_CRIT "  ECC syndrome %#x -- check bit %d\n";
+		i = ffs(syn) - 1;
+	} else {
+		static unsigned char const data_bit[64] = {
+			0xCE, 0xCB, 0xD3, 0xD5,
+			0xD6, 0xD9, 0xDA, 0xDC,
+			0x23, 0x25, 0x26, 0x29,
+			0x2A, 0x2C, 0x31, 0x34,
+			0x0E, 0x0B, 0x13, 0x15,
+			0x16, 0x19, 0x1A, 0x1C,
+			0xE3, 0xE5, 0xE6, 0xE9,
+			0xEA, 0xEC, 0xF1, 0xF4,
+			0x4F, 0x4A, 0x52, 0x54,
+			0x57, 0x58, 0x5B, 0x5D,
+			0xA2, 0xA4, 0xA7, 0xA8,
+			0xAB, 0xAD, 0xB0, 0xB5,
+			0x8F, 0x8A, 0x92, 0x94,
+			0x97, 0x98, 0x9B, 0x9D,
+			0x62, 0x64, 0x67, 0x68,
+			0x6B, 0x6D, 0x70, 0x75
+		};
+
+		for (i = 0; i < 64; ++i)
+			if (data_bit[i] == syn)
+				break;
+
+		if (i < 64)
+			fmt = KERN_CRIT "  ECC syndrome %#x -- data bit %d\n";
+		else
+			fmt = KERN_CRIT "  ECC syndrome %#x -- unknown bit\n";
+	}
+
+	printk (fmt, syn, i);
+}
+
+static void
+cia_decode_parity_error(struct el_CIA_sysdata_mcheck *cia)
+{
+	static const char * const cmd_desc[16] = {
+		"NOP", "LOCK", "FETCH", "FETCH_M", "MEMORY BARRIER",
+		"SET DIRTY", "WRITE BLOCK", "WRITE BLOCK LOCK",
+		"READ MISS0", "READ MISS1", "READ MISS MOD0",
+		"READ MISS MOD1", "BCACHE VICTIM", "Spare",
+		"READ MISS MOD STC0", "READ MISS MOD STC1"
+	};
+
+	unsigned long addr;
+	unsigned long mask;
+	const char *cmd;
+	int par;
+
+	addr = cia->cpu_err0 & 0xfffffff0;
+	addr |= (cia->cpu_err1 & 0x83UL) << 32;
+	cmd = cmd_desc[(cia->cpu_err1 >> 8) & 0xF];
+	mask = (cia->cpu_err1 >> 12) & 0xF;
+	par = (cia->cpu_err1 >> 21) & 1;
+
+	printk(KERN_CRIT "CIA machine check: System bus parity error\n");
+	printk(KERN_CRIT "  Command: %s, Parity bit: %d\n", cmd, par);
+	printk(KERN_CRIT "  Address: %#010lx, Mask: %#lx\n", addr, mask);
+}
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+
+static int
+cia_decode_mchk(unsigned long la_ptr)
+{
+	struct el_common *com;
+	struct el_CIA_sysdata_mcheck *cia;
+
+	com = (void *)la_ptr;
+	cia = (void *)(la_ptr + com->sys_offset);
+
+	if ((cia->cia_err & CIA_ERR_VALID) == 0)
+		return 0;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (!alpha_verbose_mcheck)
+		return 1;
+
+	switch (ffs(cia->cia_err & 0xfff) - 1) {
+	case 0: /* CIA_ERR_COR_ERR */
+		cia_decode_ecc_error(cia, "Corrected ECC error");
+		break;
+	case 1: /* CIA_ERR_UN_COR_ERR */
+		cia_decode_ecc_error(cia, "Uncorrected ECC error");
+		break;
+	case 2: /* CIA_ERR_CPU_PE */
+		cia_decode_parity_error(cia);
+		break;
+	case 3: /* CIA_ERR_MEM_NEM */
+		cia_decode_mem_error(cia, "Access to nonexistent memory");
+		break;
+	case 4: /* CIA_ERR_PCI_SERR */
+		cia_decode_pci_error(cia, "PCI bus system error");
+		break;
+	case 5: /* CIA_ERR_PERR */
+		cia_decode_pci_error(cia, "PCI data parity error");
+		break;
+	case 6: /* CIA_ERR_PCI_ADDR_PE */
+		cia_decode_pci_error(cia, "PCI address parity error");
+		break;
+	case 7: /* CIA_ERR_RCVD_MAS_ABT */
+		cia_decode_pci_error(cia, "PCI master abort");
+		break;
+	case 8: /* CIA_ERR_RCVD_TAR_ABT */
+		cia_decode_pci_error(cia, "PCI target abort");
+		break;
+	case 9: /* CIA_ERR_PA_PTE_INV */
+		cia_decode_pci_error(cia, "PCI invalid PTE");
+		break;
+	case 10: /* CIA_ERR_FROM_WRT_ERR */
+		cia_decode_mem_error(cia, "Write to flash ROM attempted");
+		break;
+	case 11: /* CIA_ERR_IOA_TIMEOUT */
+		cia_decode_pci_error(cia, "I/O timeout");
+		break;
+	}
+
+	if (cia->cia_err & CIA_ERR_LOST_CORR_ERR)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "Correctable ECC error\n");
+	if (cia->cia_err & CIA_ERR_LOST_UN_CORR_ERR)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "Uncorrectable ECC error\n");
+	if (cia->cia_err & CIA_ERR_LOST_CPU_PE)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "System bus parity error\n");
+	if (cia->cia_err & CIA_ERR_LOST_MEM_NEM)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "Access to nonexistent memory\n");
+	if (cia->cia_err & CIA_ERR_LOST_PERR)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "PCI data parity error\n");
+	if (cia->cia_err & CIA_ERR_LOST_PCI_ADDR_PE)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "PCI address parity error\n");
+	if (cia->cia_err & CIA_ERR_LOST_RCVD_MAS_ABT)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "PCI master abort\n");
+	if (cia->cia_err & CIA_ERR_LOST_RCVD_TAR_ABT)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "PCI target abort\n");
+	if (cia->cia_err & CIA_ERR_LOST_PA_PTE_INV)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "PCI invalid PTE\n");
+	if (cia->cia_err & CIA_ERR_LOST_FROM_WRT_ERR)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "Write to flash ROM attempted\n");
+	if (cia->cia_err & CIA_ERR_LOST_IOA_TIMEOUT)
+		printk(KERN_CRIT "CIA lost machine check: "
+		       "I/O timeout\n");
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return 1;
+}
+
+void
+cia_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	int expected;
+
+	/* Clear the error before any reporting.  */
+	mb();
+	mb();  /* magic */
+	draina();
+	cia_pci_clr_err();
+	wrmces(rdmces());	/* reset machine check pending flag.  */
+	mb();
+
+	expected = mcheck_expected(0);
+	if (!expected && vector == 0x660)
+		expected = cia_decode_mchk(la_ptr);
+	process_mcheck_info(vector, la_ptr, "CIA", expected);
+}
diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
new file mode 100644
index 000000000..6b8ed1293
--- /dev/null
+++ b/arch/alpha/kernel/core_irongate.c
@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_irongate.c
+ *
+ * Based on code written by David A. Rusling (david.rusling@reo.mts.dec.com).
+ *
+ *	Copyright (C) 1999 Alpha Processor, Inc.,
+ *		(David Daniel, Stig Telfer, Soohoon Lee)
+ *
+ * Code common to all IRONGATE core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_irongate.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/memblock.h>
+
+#include <asm/ptrace.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+igcsr32 *IronECC;
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address accordingly.  It is therefore not safe
+ * to have concurrent invocations to configuration space access
+ * routines, but there really shouldn't be any need for this.
+ *
+ *	addr[31:24]		reserved
+ *	addr[23:16]		bus number (8 bits = 128 possible buses)
+ *	addr[15:11]		Device number (5 bits)
+ *	addr[10: 8]		function number
+ *	addr[ 7: 2]		register number
+ *
+ * For IRONGATE:
+ *    if (bus = addr[23:16]) == 0
+ *    then
+ *	  type 0 config cycle:
+ *	      addr_on_pci[31:11] = id selection for device = addr[15:11]
+ *	      addr_on_pci[10: 2] = addr[10: 2] ???
+ *	      addr_on_pci[ 1: 0] = 00
+ *    else
+ *	  type 1 config cycle (pass on with no decoding):
+ *	      addr_on_pci[31:24] = 0
+ *	      addr_on_pci[23: 2] = addr[23: 2]
+ *	      addr_on_pci[ 1: 0] = 01
+ *    fi
+ *
+ * Notes:
+ *	The function number selects which function of a multi-function device
+ *	(e.g., SCSI and Ethernet).
+ *
+ *	The register selects a DWORD (32 bit) register offset.	Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBG_CFG(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x, "
+		 "pci_addr=0x%p, type1=0x%p)\n",
+		 bus, device_fn, where, pci_addr, type1));
+
+	*type1 = (bus != 0);
+
+	addr = (bus << 16) | (device_fn << 8) | where;
+	addr |= IRONGATE_CONF;
+
+	*pci_addr = addr;
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static int
+irongate_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 *value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*value = *(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+irongate_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		      int size, u32 value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops irongate_pci_ops =
+{
+	.read =		irongate_read_config,
+	.write =	irongate_write_config,
+};
+
+int
+irongate_pci_clr_err(void)
+{
+	unsigned int nmi_ctl=0;
+	unsigned int IRONGATE_jd;
+
+again:
+	IRONGATE_jd = IRONGATE0->stat_cmd;
+	printk("Iron stat_cmd %x\n", IRONGATE_jd);
+	IRONGATE0->stat_cmd = IRONGATE_jd; /* write again clears error bits */
+	mb();
+	IRONGATE_jd = IRONGATE0->stat_cmd;  /* re-read to force write */
+
+	IRONGATE_jd = *IronECC;
+	printk("Iron ECC %x\n", IRONGATE_jd);
+	*IronECC = IRONGATE_jd; /* write again clears error bits */
+	mb();
+	IRONGATE_jd = *IronECC;  /* re-read to force write */
+
+	/* Clear ALI NMI */
+        nmi_ctl = inb(0x61);
+        nmi_ctl |= 0x0c;
+        outb(nmi_ctl, 0x61);
+        nmi_ctl &= ~0x0c;
+        outb(nmi_ctl, 0x61);
+
+	IRONGATE_jd = *IronECC;
+	if (IRONGATE_jd & 0x300) goto again;
+
+	return 0;
+}
+
+#define IRONGATE_3GB 0xc0000000UL
+
+/* On Albacore (aka UP1500) with 4Gb of RAM we have to reserve some
+   memory for PCI. At this point we just reserve memory above 3Gb. Most
+   of this memory will be freed after PCI setup is done. */
+static void __init
+albacore_init_arch(void)
+{
+	unsigned long memtop = max_low_pfn << PAGE_SHIFT;
+	unsigned long pci_mem = (memtop + 0x1000000UL) & ~0xffffffUL;
+	struct percpu_struct *cpu;
+	int pal_rev, pal_var;
+
+	cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset);
+	pal_rev = cpu->pal_revision & 0xffff;
+	pal_var = (cpu->pal_revision >> 16) & 0xff;
+
+	/* Consoles earlier than A5.6-18 (OSF PALcode v1.62-2) set up
+	   the CPU incorrectly (leave speculative stores enabled),
+	   which causes memory corruption under certain conditions.
+	   Issue a warning for such consoles. */
+	if (alpha_using_srm &&
+	    (pal_rev < 0x13e ||	(pal_rev == 0x13e && pal_var < 2)))
+		printk(KERN_WARNING "WARNING! Upgrade to SRM A5.6-19 "
+				    "or later\n");
+
+	if (pci_mem > IRONGATE_3GB)
+		pci_mem = IRONGATE_3GB;
+	IRONGATE0->pci_mem = pci_mem;
+	alpha_mv.min_mem_address = pci_mem;
+	if (memtop > pci_mem) {
+#ifdef CONFIG_BLK_DEV_INITRD
+		extern unsigned long initrd_start, initrd_end;
+		extern void *move_initrd(unsigned long);
+
+		/* Move the initrd out of the way. */
+		if (initrd_end && __pa(initrd_end) > pci_mem) {
+			unsigned long size;
+
+			size = initrd_end - initrd_start;
+			memblock_free((void *)initrd_start, PAGE_ALIGN(size));
+			if (!move_initrd(pci_mem))
+				printk("irongate_init_arch: initrd too big "
+				       "(%ldK)\ndisabling initrd\n",
+				       size / 1024);
+		}
+#endif
+		memblock_reserve(pci_mem, memtop - pci_mem);
+		printk("irongate_init_arch: temporarily reserving "
+			"region %08lx-%08lx for PCI\n", pci_mem, memtop - 1);
+	}
+}
+
+static void __init
+irongate_setup_agp(void)
+{
+	/* Disable the GART window. AGPGART doesn't work due to yet
+	   unresolved memory coherency issues... */
+	IRONGATE0->agpva = IRONGATE0->agpva & ~0xf;
+	alpha_agpgart_size = 0;
+}
+
+void __init
+irongate_init_arch(void)
+{
+	struct pci_controller *hose;
+	int amd761 = (IRONGATE0->dev_vendor >> 16) > 0x7006;	/* Albacore? */
+
+	IronECC = amd761 ? &IRONGATE0->bacsr54_eccms761 : &IRONGATE0->dramms;
+
+	irongate_pci_clr_err();
+
+	if (amd761)
+		albacore_init_arch();
+
+	irongate_setup_agp();
+
+	/*
+	 * Create our single hose.
+	 */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	/* This is for userland consumption.  For some reason, the 40-bit
+	   PIO bias that we use in the kernel through KSEG didn't work for
+	   the page table based user mappings.  So make sure we get the
+	   43-bit PIO bias.  */
+	hose->sparse_mem_base = 0;
+	hose->sparse_io_base = 0;
+	hose->dense_mem_base
+	  = (IRONGATE_MEM & 0xffffffffffUL) | 0x80000000000UL;
+	hose->dense_io_base
+	  = (IRONGATE_IO & 0xffffffffffUL) | 0x80000000000UL;
+
+	hose->sg_isa = hose->sg_pci = NULL;
+	__direct_map_base = 0;
+	__direct_map_size = 0xffffffff;
+}
+
+/*
+ * IO map and AGP support
+ */
+#include <linux/vmalloc.h>
+#include <linux/agp_backend.h>
+#include <linux/agpgart.h>
+#include <linux/export.h>
+
+#define GET_PAGE_DIR_OFF(addr) (addr >> 22)
+#define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr))
+
+#define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12) 
+#define GET_GATT(addr) (gatt_pages[GET_PAGE_DIR_IDX(addr)])
+
+void __iomem *
+irongate_ioremap(unsigned long addr, unsigned long size)
+{
+	struct vm_struct *area;
+	unsigned long vaddr;
+	unsigned long baddr, last;
+	u32 *mmio_regs, *gatt_pages, *cur_gatt, pte;
+	unsigned long gart_bus_addr;
+
+	if (!alpha_agpgart_size)
+		return (void __iomem *)(addr + IRONGATE_MEM);
+
+	gart_bus_addr = (unsigned long)IRONGATE0->bar0 &
+			PCI_BASE_ADDRESS_MEM_MASK; 
+
+	/* 
+	 * Check for within the AGP aperture...
+	 */
+	do {
+		/*
+		 * Check the AGP area
+		 */
+		if (addr >= gart_bus_addr && addr + size - 1 < 
+		    gart_bus_addr + alpha_agpgart_size)
+			break;
+
+		/*
+		 * Not found - assume legacy ioremap
+		 */
+		return (void __iomem *)(addr + IRONGATE_MEM);
+	} while(0);
+
+	mmio_regs = (u32 *)(((unsigned long)IRONGATE0->bar1 &
+			PCI_BASE_ADDRESS_MEM_MASK) + IRONGATE_MEM);
+
+	gatt_pages = (u32 *)(phys_to_virt(mmio_regs[1])); /* FIXME */
+
+	/*
+	 * Adjust the limits (mappings must be page aligned)
+	 */
+	if (addr & ~PAGE_MASK) {
+		printk("AGP ioremap failed... addr not page aligned (0x%lx)\n",
+		       addr);
+		return (void __iomem *)(addr + IRONGATE_MEM);
+	}
+	last = addr + size - 1;
+	size = PAGE_ALIGN(last) - addr;
+
+#if 0
+	printk("irongate_ioremap(0x%lx, 0x%lx)\n", addr, size);
+	printk("irongate_ioremap:  gart_bus_addr  0x%lx\n", gart_bus_addr);
+	printk("irongate_ioremap:  gart_aper_size 0x%lx\n", gart_aper_size);
+	printk("irongate_ioremap:  mmio_regs      %p\n", mmio_regs);
+	printk("irongate_ioremap:  gatt_pages     %p\n", gatt_pages);
+	
+	for(baddr = addr; baddr <= last; baddr += PAGE_SIZE)
+	{
+		cur_gatt = phys_to_virt(GET_GATT(baddr) & ~1);
+		pte = cur_gatt[GET_GATT_OFF(baddr)] & ~1;
+		printk("irongate_ioremap:  cur_gatt %p pte 0x%x\n",
+		       cur_gatt, pte);
+	}
+#endif
+
+	/*
+	 * Map it
+	 */
+	area = get_vm_area(size, VM_IOREMAP);
+	if (!area) return NULL;
+
+	for(baddr = addr, vaddr = (unsigned long)area->addr; 
+	    baddr <= last; 
+	    baddr += PAGE_SIZE, vaddr += PAGE_SIZE)
+	{
+		cur_gatt = phys_to_virt(GET_GATT(baddr) & ~1);
+		pte = cur_gatt[GET_GATT_OFF(baddr)] & ~1;
+
+		if (__alpha_remap_area_pages(vaddr,
+					     pte, PAGE_SIZE, 0)) {
+			printk("AGP ioremap: FAILED to map...\n");
+			vfree(area->addr);
+			return NULL;
+		}
+	}
+
+	flush_tlb_all();
+
+	vaddr = (unsigned long)area->addr + (addr & ~PAGE_MASK);
+#if 0
+	printk("irongate_ioremap(0x%lx, 0x%lx) returning 0x%lx\n",
+	       addr, size, vaddr);
+#endif
+	return (void __iomem *)vaddr;
+}
+EXPORT_SYMBOL(irongate_ioremap);
+
+void
+irongate_iounmap(volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (((long)addr >> 41) == -2)
+		return;	/* kseg map, nothing to do */
+	if (addr)
+		return vfree((void *)(PAGE_MASK & addr)); 
+}
+EXPORT_SYMBOL(irongate_iounmap);
diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c
new file mode 100644
index 000000000..57e075041
--- /dev/null
+++ b/arch/alpha/kernel/core_lca.c
@@ -0,0 +1,517 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_lca.c
+ *
+ * Written by David Mosberger (davidm@cs.arizona.edu) with some code
+ * taken from Dave Rusling's (david.rusling@reo.mts.dec.com) 32-bit
+ * bios code.
+ *
+ * Code common to all LCA core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_lca.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+
+#include <asm/ptrace.h>
+#include <asm/irq_regs.h>
+#include <asm/smp.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+/*
+ * Machine check reasons.  Defined according to PALcode sources
+ * (osf.h and platform.h).
+ */
+#define MCHK_K_TPERR		0x0080
+#define MCHK_K_TCPERR		0x0082
+#define MCHK_K_HERR		0x0084
+#define MCHK_K_ECC_C		0x0086
+#define MCHK_K_ECC_NC		0x0088
+#define MCHK_K_UNKNOWN		0x008A
+#define MCHK_K_CACKSOFT		0x008C
+#define MCHK_K_BUGCHECK		0x008E
+#define MCHK_K_OS_BUGCHECK	0x0090
+#define MCHK_K_DCPERR		0x0092
+#define MCHK_K_ICPERR		0x0094
+
+
+/*
+ * Platform-specific machine-check reasons:
+ */
+#define MCHK_K_SIO_SERR		0x204	/* all platforms so far */
+#define MCHK_K_SIO_IOCHK	0x206	/* all platforms so far */
+#define MCHK_K_DCSR		0x208	/* all but Noname */
+
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address and setup the LCA_IOC_CONF register
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Type 0:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | | | | | | | | | | | | | | |F|F|F|R|R|R|R|R|R|0|0|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:11	Device select bit.
+ * 	10:8	Function number
+ * 	 7:2	Register number
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr)
+{
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	if (bus == 0) {
+		int device = device_fn >> 3;
+		int func = device_fn & 0x7;
+
+		/* Type 0 configuration cycle.  */
+
+		if (device > 12) {
+			return -1;
+		}
+
+		*(vulp)LCA_IOC_CONF = 0;
+		addr = (1 << (11 + device)) | (func << 8) | where;
+	} else {
+		/* Type 1 configuration cycle.  */
+		*(vulp)LCA_IOC_CONF = 1;
+		addr = (bus << 16) | (device_fn << 8) | where;
+	}
+	*pci_addr = addr;
+	return 0;
+}
+
+static unsigned int
+conf_read(unsigned long addr)
+{
+	unsigned long flags, code, stat0;
+	unsigned int value;
+
+	local_irq_save(flags);
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vulp)LCA_IOC_STAT0;
+	*(vulp)LCA_IOC_STAT0 = stat0;
+	mb();
+
+	/* Access configuration space.  */
+	value = *(vuip)addr;
+	draina();
+
+	stat0 = *(vulp)LCA_IOC_STAT0;
+	if (stat0 & LCA_IOC_STAT0_ERR) {
+		code = ((stat0 >> LCA_IOC_STAT0_CODE_SHIFT)
+			& LCA_IOC_STAT0_CODE_MASK);
+		if (code != 1) {
+			printk("lca.c:conf_read: got stat0=%lx\n", stat0);
+		}
+
+		/* Reset error status.  */
+		*(vulp)LCA_IOC_STAT0 = stat0;
+		mb();
+
+		/* Reset machine check.  */
+		wrmces(0x7);
+
+		value = 0xffffffff;
+	}
+	local_irq_restore(flags);
+	return value;
+}
+
+static void
+conf_write(unsigned long addr, unsigned int value)
+{
+	unsigned long flags, code, stat0;
+
+	local_irq_save(flags);	/* avoid getting hit by machine check */
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vulp)LCA_IOC_STAT0;
+	*(vulp)LCA_IOC_STAT0 = stat0;
+	mb();
+
+	/* Access configuration space.  */
+	*(vuip)addr = value;
+	draina();
+
+	stat0 = *(vulp)LCA_IOC_STAT0;
+	if (stat0 & LCA_IOC_STAT0_ERR) {
+		code = ((stat0 >> LCA_IOC_STAT0_CODE_SHIFT)
+			& LCA_IOC_STAT0_CODE_MASK);
+		if (code != 1) {
+			printk("lca.c:conf_write: got stat0=%lx\n", stat0);
+		}
+
+		/* Reset error status.  */
+		*(vulp)LCA_IOC_STAT0 = stat0;
+		mb();
+
+		/* Reset machine check. */
+		wrmces(0x7);
+	}
+	local_irq_restore(flags);
+}
+
+static int
+lca_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		int size, u32 *value)
+{
+	unsigned long addr, pci_addr;
+	long mask;
+	int shift;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	shift = (where & 3) * 8;
+	mask = (size - 1) * 8;
+	addr = (pci_addr << 5) + mask + LCA_CONF;
+	*value = conf_read(addr) >> (shift);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+lca_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size,
+		 u32 value)
+{
+	unsigned long addr, pci_addr;
+	long mask;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	addr = (pci_addr << 5) + mask + LCA_CONF;
+	conf_write(addr, value << ((where & 3) * 8));
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops lca_pci_ops = 
+{
+	.read =		lca_read_config,
+	.write =	lca_write_config,
+};
+
+void
+lca_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	wmb();
+	*(vulp)LCA_IOC_TBIA = 0;
+	mb();
+}
+
+void __init
+lca_init_arch(void)
+{
+	struct pci_controller *hose;
+
+	/*
+	 * Create our single hose.
+	 */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	hose->sparse_mem_base = LCA_SPARSE_MEM - IDENT_ADDR;
+	hose->dense_mem_base = LCA_DENSE_MEM - IDENT_ADDR;
+	hose->sparse_io_base = LCA_IO - IDENT_ADDR;
+	hose->dense_io_base = 0;
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Mimic the SRM settings for the direct-map window.
+	 *   Window 0 is scatter-gather 8MB at 8MB (for isa).
+	 *   Window 1 is direct access 1GB at 1GB.
+	 *
+	 * Note that we do not try to save any of the DMA window CSRs
+	 * before setting them, since we cannot read those CSRs on LCA.
+	 */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci = NULL;
+	__direct_map_base = 0x40000000;
+	__direct_map_size = 0x40000000;
+
+	*(vulp)LCA_IOC_W_BASE0 = hose->sg_isa->dma_base | (3UL << 32);
+	*(vulp)LCA_IOC_W_MASK0 = (hose->sg_isa->size - 1) & 0xfff00000;
+	*(vulp)LCA_IOC_T_BASE0 = virt_to_phys(hose->sg_isa->ptes);
+
+	*(vulp)LCA_IOC_W_BASE1 = __direct_map_base | (2UL << 32);
+	*(vulp)LCA_IOC_W_MASK1 = (__direct_map_size - 1) & 0xfff00000;
+	*(vulp)LCA_IOC_T_BASE1 = 0;
+
+	*(vulp)LCA_IOC_TB_ENA = 0x80;
+
+	lca_pci_tbi(hose, 0, -1);
+
+	/*
+	 * Disable PCI parity for now.  The NCR53c810 chip has
+	 * troubles meeting the PCI spec which results in
+	 * data parity errors.
+	 */
+	*(vulp)LCA_IOC_PAR_DIS = 1UL<<5;
+
+	/*
+	 * Finally, set up for restoring the correct HAE if using SRM.
+	 * Again, since we cannot read many of the CSRs on the LCA,
+	 * one of which happens to be the HAE, we save the value that
+	 * the SRM will expect...
+	 */
+	if (alpha_using_srm)
+		srm_hae = 0x80000000UL;
+}
+
+/*
+ * Constants used during machine-check handling.  I suppose these
+ * could be moved into lca.h but I don't see much reason why anybody
+ * else would want to use them.
+ */
+
+#define ESR_EAV		(1UL<< 0)	/* error address valid */
+#define ESR_CEE		(1UL<< 1)	/* correctable error */
+#define ESR_UEE		(1UL<< 2)	/* uncorrectable error */
+#define ESR_WRE		(1UL<< 3)	/* write-error */
+#define ESR_SOR		(1UL<< 4)	/* error source */
+#define ESR_CTE		(1UL<< 7)	/* cache-tag error */
+#define ESR_MSE		(1UL<< 9)	/* multiple soft errors */
+#define ESR_MHE		(1UL<<10)	/* multiple hard errors */
+#define ESR_NXM		(1UL<<12)	/* non-existent memory */
+
+#define IOC_ERR		(  1<<4)	/* ioc logs an error */
+#define IOC_CMD_SHIFT	0
+#define IOC_CMD		(0xf<<IOC_CMD_SHIFT)
+#define IOC_CODE_SHIFT	8
+#define IOC_CODE	(0xf<<IOC_CODE_SHIFT)
+#define IOC_LOST	(  1<<5)
+#define IOC_P_NBR	((__u32) ~((1<<13) - 1))
+
+static void
+mem_error(unsigned long esr, unsigned long ear)
+{
+	printk("    %s %s error to %s occurred at address %x\n",
+	       ((esr & ESR_CEE) ? "Correctable" :
+		(esr & ESR_UEE) ? "Uncorrectable" : "A"),
+	       (esr & ESR_WRE) ? "write" : "read",
+	       (esr & ESR_SOR) ? "memory" : "b-cache",
+	       (unsigned) (ear & 0x1ffffff8));
+	if (esr & ESR_CTE) {
+		printk("    A b-cache tag parity error was detected.\n");
+	}
+	if (esr & ESR_MSE) {
+		printk("    Several other correctable errors occurred.\n");
+	}
+	if (esr & ESR_MHE) {
+		printk("    Several other uncorrectable errors occurred.\n");
+	}
+	if (esr & ESR_NXM) {
+		printk("    Attempted to access non-existent memory.\n");
+	}
+}
+
+static void
+ioc_error(__u32 stat0, __u32 stat1)
+{
+	static const char * const pci_cmd[] = {
+		"Interrupt Acknowledge", "Special", "I/O Read", "I/O Write",
+		"Rsvd 1", "Rsvd 2", "Memory Read", "Memory Write", "Rsvd3",
+		"Rsvd4", "Configuration Read", "Configuration Write",
+		"Memory Read Multiple", "Dual Address", "Memory Read Line",
+		"Memory Write and Invalidate"
+	};
+	static const char * const err_name[] = {
+		"exceeded retry limit", "no device", "bad data parity",
+		"target abort", "bad address parity", "page table read error",
+		"invalid page", "data error"
+	};
+	unsigned code = (stat0 & IOC_CODE) >> IOC_CODE_SHIFT;
+	unsigned cmd  = (stat0 & IOC_CMD)  >> IOC_CMD_SHIFT;
+
+	printk("    %s initiated PCI %s cycle to address %x"
+	       " failed due to %s.\n",
+	       code > 3 ? "PCI" : "CPU", pci_cmd[cmd], stat1, err_name[code]);
+
+	if (code == 5 || code == 6) {
+		printk("    (Error occurred at PCI memory address %x.)\n",
+		       (stat0 & ~IOC_P_NBR));
+	}
+	if (stat0 & IOC_LOST) {
+		printk("    Other PCI errors occurred simultaneously.\n");
+	}
+}
+
+void
+lca_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	const char * reason;
+	union el_lca el;
+
+	el.c = (struct el_common *) la_ptr;
+
+	wrmces(rdmces());	/* reset machine check pending flag */
+
+	printk(KERN_CRIT "LCA machine check: vector=%#lx pc=%#lx code=%#x\n",
+	       vector, get_irq_regs()->pc, (unsigned int) el.c->code);
+
+	/*
+	 * The first quadword after the common header always seems to
+	 * be the machine check reason---don't know why this isn't
+	 * part of the common header instead.  In the case of a long
+	 * logout frame, the upper 32 bits is the machine check
+	 * revision level, which we ignore for now.
+	 */
+	switch ((unsigned int) el.c->code) {
+	case MCHK_K_TPERR:	reason = "tag parity error"; break;
+	case MCHK_K_TCPERR:	reason = "tag control parity error"; break;
+	case MCHK_K_HERR:	reason = "access to non-existent memory"; break;
+	case MCHK_K_ECC_C:	reason = "correctable ECC error"; break;
+	case MCHK_K_ECC_NC:	reason = "non-correctable ECC error"; break;
+	case MCHK_K_CACKSOFT:	reason = "MCHK_K_CACKSOFT"; break;
+	case MCHK_K_BUGCHECK:	reason = "illegal exception in PAL mode"; break;
+	case MCHK_K_OS_BUGCHECK: reason = "callsys in kernel mode"; break;
+	case MCHK_K_DCPERR:	reason = "d-cache parity error"; break;
+	case MCHK_K_ICPERR:	reason = "i-cache parity error"; break;
+	case MCHK_K_SIO_SERR:	reason = "SIO SERR occurred on PCI bus"; break;
+	case MCHK_K_SIO_IOCHK:	reason = "SIO IOCHK occurred on ISA bus"; break;
+	case MCHK_K_DCSR:	reason = "MCHK_K_DCSR"; break;
+	case MCHK_K_UNKNOWN:
+	default:		reason = "unknown"; break;
+	}
+
+	switch (el.c->size) {
+	case sizeof(struct el_lca_mcheck_short):
+		printk(KERN_CRIT
+		       "  Reason: %s (short frame%s, dc_stat=%#lx):\n",
+		       reason, el.c->retry ? ", retryable" : "",
+		       el.s->dc_stat);
+		if (el.s->esr & ESR_EAV) {
+			mem_error(el.s->esr, el.s->ear);
+		}
+		if (el.s->ioc_stat0 & IOC_ERR) {
+			ioc_error(el.s->ioc_stat0, el.s->ioc_stat1);
+		}
+		break;
+
+	case sizeof(struct el_lca_mcheck_long):
+		printk(KERN_CRIT "  Reason: %s (long frame%s):\n",
+		       reason, el.c->retry ? ", retryable" : "");
+		printk(KERN_CRIT
+		       "    reason: %#lx  exc_addr: %#lx  dc_stat: %#lx\n", 
+		       el.l->pt[0], el.l->exc_addr, el.l->dc_stat);
+		printk(KERN_CRIT "    car: %#lx\n", el.l->car);
+		if (el.l->esr & ESR_EAV) {
+			mem_error(el.l->esr, el.l->ear);
+		}
+		if (el.l->ioc_stat0 & IOC_ERR) {
+			ioc_error(el.l->ioc_stat0, el.l->ioc_stat1);
+		}
+		break;
+
+	default:
+		printk(KERN_CRIT "  Unknown errorlog size %d\n", el.c->size);
+	}
+
+	/* Dump the logout area to give all info.  */
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		unsigned long * ptr = (unsigned long *) la_ptr;
+		long i;
+		for (i = 0; i < el.c->size / sizeof(long); i += 2) {
+			printk(KERN_CRIT " +%8lx %016lx %016lx\n",
+			       i*sizeof(long), ptr[i], ptr[i+1]);
+		}
+	}
+#endif /* CONFIG_VERBOSE_MCHECK */
+}
+
+/*
+ * The following routines are needed to support the SPEED changing
+ * necessary to successfully manage the thermal problem on the AlphaBook1.
+ */
+
+void
+lca_clock_print(void)
+{
+        long    pmr_reg;
+
+        pmr_reg = LCA_READ_PMR;
+
+        printk("Status of clock control:\n");
+        printk("\tPrimary clock divisor\t0x%lx\n", LCA_GET_PRIMARY(pmr_reg));
+        printk("\tOverride clock divisor\t0x%lx\n", LCA_GET_OVERRIDE(pmr_reg));
+        printk("\tInterrupt override is %s\n",
+	       (pmr_reg & LCA_PMR_INTO) ? "on" : "off"); 
+        printk("\tDMA override is %s\n",
+	       (pmr_reg & LCA_PMR_DMAO) ? "on" : "off"); 
+
+}
+
+int
+lca_get_clock(void)
+{
+        long    pmr_reg;
+
+        pmr_reg = LCA_READ_PMR;
+        return(LCA_GET_PRIMARY(pmr_reg));
+
+}
+
+void
+lca_clock_fiddle(int divisor)
+{
+        long    pmr_reg;
+
+        pmr_reg = LCA_READ_PMR;
+        LCA_SET_PRIMARY_CLOCK(pmr_reg, divisor);
+	/* lca_norm_clock = divisor; */
+        LCA_WRITE_PMR(pmr_reg);
+        mb();
+}
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
new file mode 100644
index 000000000..e9348aec4
--- /dev/null
+++ b/arch/alpha/kernel/core_marvel.c
@@ -0,0 +1,1099 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_marvel.c
+ *
+ * Code common to all Marvel based systems.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_marvel.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <linux/mc146818rtc.h>
+#include <linux/rtc.h>
+#include <linux/module.h>
+#include <linux/memblock.h>
+
+#include <asm/ptrace.h>
+#include <asm/smp.h>
+#include <asm/gct.h>
+#include <asm/tlbflush.h>
+#include <asm/vga.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+/*
+ * Debug helpers
+ */
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args) printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+
+/*
+ * Private data
+ */
+static struct io7 *io7_head = NULL;
+
+
+/*
+ * Helper functions
+ */
+static unsigned long __attribute__ ((unused))
+read_ev7_csr(int pe, unsigned long offset)
+{
+	ev7_csr *ev7csr = EV7_CSR_KERN(pe, offset);
+	unsigned long q;
+
+	mb();
+	q = ev7csr->csr;
+	mb();
+
+	return q;
+}
+
+static void __attribute__ ((unused))
+write_ev7_csr(int pe, unsigned long offset, unsigned long q)
+{
+	ev7_csr *ev7csr = EV7_CSR_KERN(pe, offset);
+
+	mb();
+	ev7csr->csr = q;
+	mb();
+}
+
+static char * __init
+mk_resource_name(int pe, int port, char *str)
+{
+	char tmp[80];
+	char *name;
+	
+	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
+	name = memblock_alloc(strlen(tmp) + 1, SMP_CACHE_BYTES);
+	if (!name)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      strlen(tmp) + 1);
+	strcpy(name, tmp);
+
+	return name;
+}
+
+inline struct io7 *
+marvel_next_io7(struct io7 *prev)
+{
+	return (prev ? prev->next : io7_head);
+}
+
+struct io7 *
+marvel_find_io7(int pe)
+{
+	struct io7 *io7;
+
+	for (io7 = io7_head; io7 && io7->pe != pe; io7 = io7->next)
+		continue;
+
+	return io7;
+}
+
+static struct io7 * __init
+alloc_io7(unsigned int pe)
+{
+	struct io7 *io7;
+	struct io7 *insp;
+	int h;
+
+	if (marvel_find_io7(pe)) {
+		printk(KERN_WARNING "IO7 at PE %d already allocated!\n", pe);
+		return NULL;
+	}
+
+	io7 = memblock_alloc(sizeof(*io7), SMP_CACHE_BYTES);
+	if (!io7)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(*io7));
+	io7->pe = pe;
+	raw_spin_lock_init(&io7->irq_lock);
+
+	for (h = 0; h < 4; h++) {
+		io7->ports[h].io7 = io7;
+		io7->ports[h].port = h;
+		io7->ports[h].enabled = 0; /* default to disabled */
+	}
+
+	/*
+	 * Insert in pe sorted order.
+	 */
+	if (NULL == io7_head)			/* empty list */
+		io7_head = io7;	
+	else if (io7_head->pe > io7->pe) {	/* insert at head */
+		io7->next = io7_head;
+		io7_head = io7;
+	} else {				/* insert at position */
+		for (insp = io7_head; insp; insp = insp->next) {
+			if (insp->pe == io7->pe) {
+				printk(KERN_ERR "Too many IO7s at PE %d\n", 
+				       io7->pe);
+				return NULL;
+			}
+
+			if (NULL == insp->next || 
+			    insp->next->pe > io7->pe) { /* insert here */
+				io7->next = insp->next;
+				insp->next = io7;
+				break;
+			}
+		}
+
+		if (NULL == insp) { /* couldn't insert ?!? */
+			printk(KERN_WARNING "Failed to insert IO7 at PE %d "
+			       " - adding at head of list\n", io7->pe);
+			io7->next = io7_head;
+			io7_head = io7;
+		}
+	}
+	
+	return io7;
+}
+
+void
+io7_clear_errors(struct io7 *io7)
+{
+	io7_port7_csrs *p7csrs;
+	io7_ioport_csrs *csrs;
+	int port;
+
+
+	/*
+	 * First the IO ports.
+	 */
+	for (port = 0; port < 4; port++) {
+		csrs = IO7_CSRS_KERN(io7->pe, port);
+
+		csrs->POx_ERR_SUM.csr = -1UL;
+		csrs->POx_TLB_ERR.csr = -1UL;
+		csrs->POx_SPL_COMPLT.csr = -1UL;
+		csrs->POx_TRANS_SUM.csr = -1UL;
+	}
+
+	/*
+	 * Then the common ones.
+	 */
+	p7csrs = IO7_PORT7_CSRS_KERN(io7->pe);
+
+	p7csrs->PO7_ERROR_SUM.csr = -1UL;
+	p7csrs->PO7_UNCRR_SYM.csr = -1UL;
+	p7csrs->PO7_CRRCT_SYM.csr = -1UL;
+}
+
+
+/*
+ * IO7 PCI, PCI/X, AGP configuration.
+ */
+static void __init
+io7_init_hose(struct io7 *io7, int port)
+{
+	static int hose_index = 0;
+
+	struct pci_controller *hose = alloc_pci_controller();
+	struct io7_port *io7_port = &io7->ports[port];
+	io7_ioport_csrs *csrs = IO7_CSRS_KERN(io7->pe, port);
+	int i;
+
+	hose->index = hose_index++;	/* arbitrary */
+	
+	/*
+	 * We don't have an isa or legacy hose, but glibc expects to be
+	 * able to use the bus == 0 / dev == 0 form of the iobase syscall
+	 * to determine information about the i/o system. Since XFree86 
+	 * relies on glibc's determination to tell whether or not to use
+	 * sparse access, we need to point the pci_isa_hose at a real hose
+	 * so at least that determination is correct.
+	 */
+	if (hose->index == 0)
+		pci_isa_hose = hose;
+
+	io7_port->csrs = csrs;
+	io7_port->hose = hose;
+	hose->sysdata = io7_port;
+
+	hose->io_space = alloc_resource();
+	hose->mem_space = alloc_resource();
+
+	/*
+	 * Base addresses for userland consumption. Since these are going
+	 * to be mapped, they are pure physical addresses.
+	 */
+	hose->sparse_mem_base = hose->sparse_io_base = 0;
+	hose->dense_mem_base = IO7_MEM_PHYS(io7->pe, port);
+	hose->dense_io_base = IO7_IO_PHYS(io7->pe, port);
+
+	/*
+	 * Base addresses and resource ranges for kernel consumption.
+	 */
+	hose->config_space_base = (unsigned long)IO7_CONF_KERN(io7->pe, port);
+
+	hose->io_space->start = (unsigned long)IO7_IO_KERN(io7->pe, port);
+	hose->io_space->end = hose->io_space->start + IO7_IO_SPACE - 1;
+	hose->io_space->name = mk_resource_name(io7->pe, port, "IO");
+	hose->io_space->flags = IORESOURCE_IO;
+
+	hose->mem_space->start = (unsigned long)IO7_MEM_KERN(io7->pe, port);
+	hose->mem_space->end = hose->mem_space->start + IO7_MEM_SPACE - 1;
+	hose->mem_space->name = mk_resource_name(io7->pe, port, "MEM");
+	hose->mem_space->flags = IORESOURCE_MEM;
+
+	if (request_resource(&ioport_resource, hose->io_space) < 0)
+		printk(KERN_ERR "Failed to request IO on hose %d\n", 
+		       hose->index);
+	if (request_resource(&iomem_resource, hose->mem_space) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose %d\n", 
+		       hose->index);
+
+	/*
+	 * Save the existing DMA window settings for later restoration.
+	 */
+	for (i = 0; i < 4; i++) {
+		io7_port->saved_wbase[i] = csrs->POx_WBASE[i].csr;
+		io7_port->saved_wmask[i] = csrs->POx_WMASK[i].csr;
+		io7_port->saved_tbase[i] = csrs->POx_TBASE[i].csr;
+	}
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Window 0 is scatter-gather 8MB at 8MB
+	 * Window 1 is direct access 1GB at 2GB
+	 * Window 2 is scatter-gather (up-to) 1GB at 3GB
+	 * Window 3 is disabled
+	 */
+
+	/*
+	 * TBIA before modifying windows.
+	 */
+	marvel_pci_tbi(hose, 0, -1);
+
+	/*
+	 * Set up window 0 for scatter-gather 8MB at 8MB.
+	 */
+	hose->sg_isa = iommu_arena_new_node(0, hose, 0x00800000, 0x00800000, 0);
+	hose->sg_isa->align_entry = 8;	/* cache line boundary */
+	csrs->POx_WBASE[0].csr = 
+		hose->sg_isa->dma_base | wbase_m_ena | wbase_m_sg;
+	csrs->POx_WMASK[0].csr = (hose->sg_isa->size - 1) & wbase_m_addr;
+	csrs->POx_TBASE[0].csr = virt_to_phys(hose->sg_isa->ptes);
+
+	/*
+	 * Set up window 1 for direct-mapped 1GB at 2GB.
+	 */
+	csrs->POx_WBASE[1].csr = __direct_map_base | wbase_m_ena;
+	csrs->POx_WMASK[1].csr = (__direct_map_size - 1) & wbase_m_addr;
+	csrs->POx_TBASE[1].csr = 0;
+
+	/*
+	 * Set up window 2 for scatter-gather (up-to) 1GB at 3GB.
+	 */
+	hose->sg_pci = iommu_arena_new_node(0, hose, 0xc0000000, 0x40000000, 0);
+	hose->sg_pci->align_entry = 8;	/* cache line boundary */
+	csrs->POx_WBASE[2].csr = 
+		hose->sg_pci->dma_base | wbase_m_ena | wbase_m_sg;
+	csrs->POx_WMASK[2].csr = (hose->sg_pci->size - 1) & wbase_m_addr;
+	csrs->POx_TBASE[2].csr = virt_to_phys(hose->sg_pci->ptes);
+
+	/*
+	 * Disable window 3.
+	 */
+	csrs->POx_WBASE[3].csr = 0;
+
+	/*
+	 * Make sure that the AGP Monster Window is disabled.
+	 */
+	csrs->POx_CTRL.csr &= ~(1UL << 61);
+
+#if 1
+	printk("FIXME: disabling master aborts\n");
+	csrs->POx_MSK_HEI.csr &= ~(3UL << 14);
+#endif
+	/*
+	 * TBIA after modifying windows.
+	 */
+	marvel_pci_tbi(hose, 0, -1);
+}
+
+static void __init
+marvel_init_io7(struct io7 *io7)
+{
+	int i;
+
+	printk("Initializing IO7 at PID %d\n", io7->pe);
+
+	/*
+	 * Get the Port 7 CSR pointer.
+	 */
+	io7->csrs = IO7_PORT7_CSRS_KERN(io7->pe);
+
+	/*
+	 * Init this IO7's hoses.
+	 */
+	for (i = 0; i < IO7_NUM_PORTS; i++) {
+		io7_ioport_csrs *csrs = IO7_CSRS_KERN(io7->pe, i);
+		if (csrs->POx_CACHE_CTL.csr == 8) {
+			io7->ports[i].enabled = 1;
+			io7_init_hose(io7, i);
+		}
+	}
+}
+
+void __init
+marvel_io7_present(gct6_node *node)
+{
+	int pe;
+
+	if (node->type != GCT_TYPE_HOSE ||
+	    node->subtype != GCT_SUBTYPE_IO_PORT_MODULE) 
+		return;
+
+	pe = (node->id >> 8) & 0xff;
+	printk("Found an IO7 at PID %d\n", pe);
+
+	alloc_io7(pe);
+}
+
+static void __init
+marvel_find_console_vga_hose(void)
+{
+#ifdef CONFIG_VGA_HOSE
+	u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
+
+	if (pu64[7] == 3) {	/* TERM_TYPE == graphics */
+		struct pci_controller *hose = NULL;
+		int h = (pu64[30] >> 24) & 0xff; /* TERM_OUT_LOC, hose # */
+		struct io7 *io7;
+		int pid, port;
+
+		/* FIXME - encoding is going to have to change for Marvel
+		 *         since hose will be able to overflow a byte...
+		 *         need to fix this decode when the console 
+		 *         changes its encoding
+		 */
+		printk("console graphics is on hose %d (console)\n", h);
+
+		/*
+		 * The console's hose numbering is:
+		 *
+		 *	hose<n:2>: PID
+		 *	hose<1:0>: PORT
+		 *
+		 * We need to find the hose at that pid and port
+		 */
+		pid = h >> 2;
+		port = h & 3;
+		if ((io7 = marvel_find_io7(pid)))
+			hose = io7->ports[port].hose;
+
+		if (hose) {
+			printk("Console graphics on hose %d\n", hose->index);
+			pci_vga_hose = hose;
+		}
+	}
+#endif
+}
+
+gct6_search_struct gct_wanted_node_list[] __initdata = {
+	{ GCT_TYPE_HOSE, GCT_SUBTYPE_IO_PORT_MODULE, marvel_io7_present },
+	{ 0, 0, NULL }
+};
+
+/*
+ * In case the GCT is not complete, let the user specify PIDs with IO7s
+ * at boot time. Syntax is 'io7=a,b,c,...,n' where a-n are the PIDs (decimal)
+ * where IO7s are connected
+ */
+static int __init
+marvel_specify_io7(char *str)
+{
+	unsigned long pid;
+	struct io7 *io7;
+	char *pchar;
+
+	do {
+		pid = simple_strtoul(str, &pchar, 0);
+		if (pchar != str) {
+			printk("User-specified IO7 at PID %lu\n", pid);
+			io7 = alloc_io7(pid);
+			if (io7) marvel_init_io7(io7);
+		}
+
+		if (pchar == str) pchar++;
+		str = pchar;
+	} while(*str);
+
+	return 1;
+}
+__setup("io7=", marvel_specify_io7);
+
+void __init
+marvel_init_arch(void)
+{
+	struct io7 *io7;
+
+	/* With multiple PCI busses, we play with I/O as physical addrs.  */
+	ioport_resource.end = ~0UL;
+
+	/* PCI DMA Direct Mapping is 1GB at 2GB.  */
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x40000000;
+
+	/* Parse the config tree.  */
+	gct6_find_nodes(GCT_NODE_PTR(0), gct_wanted_node_list);
+
+	/* Init the io7s.  */
+	for (io7 = NULL; NULL != (io7 = marvel_next_io7(io7)); ) 
+		marvel_init_io7(io7);
+
+	/* Check for graphic console location (if any).  */
+	marvel_find_console_vga_hose();
+}
+
+void
+marvel_kill_arch(int mode)
+{
+}
+
+
+/*
+ * PCI Configuration Space access functions
+ *
+ * Configuration space addresses have the following format:
+ *
+ * 	|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ * 	|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * 	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * 	|B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|R|R|
+ * 	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	 n:24	reserved for hose base
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	IO7 determines whether to use a type 0 or type 1 config cycle
+ *	based on the bus number. Therefore the bus number must be set 
+ *	to 0 for the root bus on any hose.
+ *	
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ */
+
+static inline unsigned long
+build_conf_addr(struct pci_controller *hose, u8 bus, 
+		unsigned int devfn, int where)
+{
+	return (hose->config_space_base | (bus << 16) | (devfn << 8) | where);
+}
+
+static unsigned long
+mk_conf_addr(struct pci_bus *pbus, unsigned int devfn, int where)
+{
+	struct pci_controller *hose = pbus->sysdata;
+	struct io7_port *io7_port;
+	unsigned long addr = 0;
+	u8 bus = pbus->number;
+
+	if (!hose)
+		return addr;
+
+	/* Check for enabled.  */
+	io7_port = hose->sysdata;
+	if (!io7_port->enabled)
+		return addr;
+
+	if (!pbus->parent) { /* No parent means peer PCI bus. */
+		/* Don't support idsel > 20 on primary bus.  */
+		if (devfn >= PCI_DEVFN(21, 0))
+			return addr;
+		bus = 0;
+	}
+
+	addr = build_conf_addr(hose, bus, devfn, where);
+
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return addr;
+}
+
+static int
+marvel_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		   int size, u32 *value)
+{
+	unsigned long addr;
+	
+	if (0 == (addr = mk_conf_addr(bus, devfn, where)))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch(size) {
+	case 1:	
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:	
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:	
+		*value = *(vuip)addr;
+		break;
+	default:
+		return PCIBIOS_FUNC_NOT_SUPPORTED;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+marvel_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 value)
+{
+	unsigned long addr;
+	
+	if (0 == (addr = mk_conf_addr(bus, devfn, where)))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	default:
+		return PCIBIOS_FUNC_NOT_SUPPORTED;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops marvel_pci_ops =
+{
+	.read =		marvel_read_config,
+	.write = 	marvel_write_config,
+};
+
+
+/*
+ * Other PCI helper functions.
+ */
+void
+marvel_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	io7_ioport_csrs *csrs = ((struct io7_port *)hose->sysdata)->csrs;
+
+	wmb();
+	csrs->POx_SG_TBIA.csr = 0;
+	mb();
+	csrs->POx_SG_TBIA.csr;
+}
+
+
+
+/*
+ * RTC Support
+ */
+struct marvel_rtc_access_info {
+	unsigned long function;
+	unsigned long index;
+	unsigned long data;
+};
+
+static void
+__marvel_access_rtc(void *info)
+{
+	struct marvel_rtc_access_info *rtc_access = info;
+
+	register unsigned long __r0 __asm__("$0");
+	register unsigned long __r16 __asm__("$16") = rtc_access->function;
+	register unsigned long __r17 __asm__("$17") = rtc_access->index;
+	register unsigned long __r18 __asm__("$18") = rtc_access->data;
+	
+	__asm__ __volatile__(
+		"call_pal %4 # cserve rtc"
+		: "=r"(__r16), "=r"(__r17), "=r"(__r18), "=r"(__r0)
+		: "i"(PAL_cserve), "0"(__r16), "1"(__r17), "2"(__r18)
+		: "$1", "$22", "$23", "$24", "$25");
+
+	rtc_access->data = __r0;
+}
+
+static u8
+__marvel_rtc_io(u8 b, unsigned long addr, int write)
+{
+	static u8 index = 0;
+
+	struct marvel_rtc_access_info rtc_access;
+	u8 ret = 0;
+
+	switch(addr) {
+	case 0x70:					/* RTC_PORT(0) */
+		if (write) index = b;
+		ret = index;
+		break;
+
+	case 0x71:					/* RTC_PORT(1) */
+		rtc_access.index = index;
+		rtc_access.data = bcd2bin(b);
+		rtc_access.function = 0x48 + !write;	/* GET/PUT_TOY */
+
+		__marvel_access_rtc(&rtc_access);
+
+		ret = bin2bcd(rtc_access.data);
+		break;
+
+	default:
+		printk(KERN_WARNING "Illegal RTC port %lx\n", addr);
+		break;
+	}
+
+	return ret;
+}
+
+
+/*
+ * IO map support.
+ */
+void __iomem *
+marvel_ioremap(unsigned long addr, unsigned long size)
+{
+	struct pci_controller *hose;
+	unsigned long baddr, last;
+	struct vm_struct *area;
+	unsigned long vaddr;
+	unsigned long *ptes;
+	unsigned long pfn;
+
+	/*
+	 * Adjust the address.
+	 */ 
+	FIXUP_MEMADDR_VGA(addr);
+
+	/*
+	 * Find the hose.
+	 */
+	for (hose = hose_head; hose; hose = hose->next) {
+		if ((addr >> 32) == (hose->mem_space->start >> 32))
+			break; 
+	}
+	if (!hose)
+		return NULL;
+
+	/*
+	 * We have the hose - calculate the bus limits.
+	 */
+	baddr = addr - hose->mem_space->start;
+	last = baddr + size - 1;
+
+	/*
+	 * Is it direct-mapped?
+	 */
+	if ((baddr >= __direct_map_base) && 
+	    ((baddr + size - 1) < __direct_map_base + __direct_map_size)) {
+		addr = IDENT_ADDR | (baddr - __direct_map_base);
+		return (void __iomem *) addr;
+	}
+
+	/* 
+	 * Check the scatter-gather arena.
+	 */
+	if (hose->sg_pci &&
+	    baddr >= (unsigned long)hose->sg_pci->dma_base &&
+	    last < (unsigned long)hose->sg_pci->dma_base + hose->sg_pci->size) {
+
+		/*
+		 * Adjust the limits (mappings must be page aligned)
+		 */
+		baddr -= hose->sg_pci->dma_base;
+		last -= hose->sg_pci->dma_base;
+		baddr &= PAGE_MASK;
+		size = PAGE_ALIGN(last) - baddr;
+
+		/*
+		 * Map it.
+		 */
+		area = get_vm_area(size, VM_IOREMAP);
+		if (!area)
+			return NULL;
+
+		ptes = hose->sg_pci->ptes;
+		for (vaddr = (unsigned long)area->addr; 
+		    baddr <= last; 
+		    baddr += PAGE_SIZE, vaddr += PAGE_SIZE) {
+			pfn = ptes[baddr >> PAGE_SHIFT];
+			if (!(pfn & 1)) {
+				printk("ioremap failed... pte not valid...\n");
+				vfree(area->addr);
+				return NULL;
+			}
+			pfn >>= 1;	/* make it a true pfn */
+			
+			if (__alpha_remap_area_pages(vaddr,
+						     pfn << PAGE_SHIFT, 
+						     PAGE_SIZE, 0)) {
+				printk("FAILED to map...\n");
+				vfree(area->addr);
+				return NULL;
+			}
+		}
+
+		flush_tlb_all();
+
+		vaddr = (unsigned long)area->addr + (addr & ~PAGE_MASK);
+
+		return (void __iomem *) vaddr;
+	}
+
+	/* Assume it was already a reasonable address */
+	vaddr = baddr + hose->mem_space->start;
+	return (void __iomem *) vaddr;
+}
+
+void
+marvel_iounmap(volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr >= VMALLOC_START)
+		vfree((void *)(PAGE_MASK & addr)); 
+}
+
+int
+marvel_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+
+	if (addr >= VMALLOC_START)
+		return 1;
+	else
+		return (addr & 0xFF000000UL) == 0;
+}
+
+#define __marvel_is_port_kbd(a)	(((a) == 0x60) || ((a) == 0x64))
+#define __marvel_is_port_rtc(a)	(((a) == 0x70) || ((a) == 0x71))
+
+void __iomem *marvel_ioportmap (unsigned long addr)
+{
+	FIXUP_IOADDR_VGA(addr);
+	return (void __iomem *)addr;
+}
+
+u8
+marvel_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (__marvel_is_port_kbd(addr))
+		return 0;
+	else if (__marvel_is_port_rtc(addr))
+		return __marvel_rtc_io(0, addr, 0);
+	else if (marvel_is_ioaddr(addr))
+		return __kernel_ldbu(*(vucp)addr);
+	else
+		/* this should catch other legacy addresses
+		   that would normally fail on MARVEL,
+		   because there really is nothing there...
+		*/
+		return ~0;
+}
+
+void
+marvel_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (__marvel_is_port_kbd(addr))
+		return;
+	else if (__marvel_is_port_rtc(addr)) 
+		__marvel_rtc_io(b, addr, 1);
+	else if (marvel_is_ioaddr(addr))
+		__kernel_stb(b, *(vucp)addr);
+}
+
+#ifndef CONFIG_ALPHA_GENERIC
+EXPORT_SYMBOL(marvel_ioremap);
+EXPORT_SYMBOL(marvel_iounmap);
+EXPORT_SYMBOL(marvel_is_mmio);
+EXPORT_SYMBOL(marvel_ioportmap);
+EXPORT_SYMBOL(marvel_ioread8);
+EXPORT_SYMBOL(marvel_iowrite8);
+#endif
+
+/*
+ * AGP GART Support.
+ */
+#include <linux/agp_backend.h>
+#include <asm/agp_backend.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+struct marvel_agp_aperture {
+	struct pci_iommu_arena *arena;
+	long pg_start;
+	long pg_count;
+};
+
+static int
+marvel_agp_setup(alpha_agp_info *agp)
+{
+	struct marvel_agp_aperture *aper;
+
+	if (!alpha_agpgart_size)
+		return -ENOMEM;
+
+	aper = kmalloc(sizeof(*aper), GFP_KERNEL);
+	if (aper == NULL) return -ENOMEM;
+
+	aper->arena = agp->hose->sg_pci;
+	aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
+	aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
+				       aper->pg_count - 1);
+
+	if (aper->pg_start < 0) {
+		printk(KERN_ERR "Failed to reserve AGP memory\n");
+		kfree(aper);
+		return -ENOMEM;
+	}
+
+	agp->aperture.bus_base = 
+		aper->arena->dma_base + aper->pg_start * PAGE_SIZE;
+	agp->aperture.size = aper->pg_count * PAGE_SIZE;
+	agp->aperture.sysdata = aper;
+
+	return 0;
+}
+
+static void
+marvel_agp_cleanup(alpha_agp_info *agp)
+{
+	struct marvel_agp_aperture *aper = agp->aperture.sysdata;
+	int status;
+
+	status = iommu_release(aper->arena, aper->pg_start, aper->pg_count);
+	if (status == -EBUSY) {
+		printk(KERN_WARNING
+		       "Attempted to release bound AGP memory - unbinding\n");
+		iommu_unbind(aper->arena, aper->pg_start, aper->pg_count);
+		status = iommu_release(aper->arena, aper->pg_start, 
+				       aper->pg_count);
+	}
+	if (status < 0)
+		printk(KERN_ERR "Failed to release AGP memory\n");
+
+	kfree(aper);
+	kfree(agp);
+}
+
+static int
+marvel_agp_configure(alpha_agp_info *agp)
+{
+	io7_ioport_csrs *csrs = ((struct io7_port *)agp->hose->sysdata)->csrs;
+	struct io7 *io7 = ((struct io7_port *)agp->hose->sysdata)->io7;
+	unsigned int new_rate = 0;
+	unsigned long agp_pll;
+
+	/*
+	 * Check the requested mode against the PLL setting.
+	 * The agpgart_be code has not programmed the card yet,
+	 * so we can still tweak mode here.
+	 */
+	agp_pll = io7->csrs->POx_RST[IO7_AGP_PORT].csr;
+	switch(IO7_PLL_RNGB(agp_pll)) {
+	case 0x4:				/* 2x only */
+		/* 
+		 * The PLL is only programmed for 2x, so adjust the
+		 * rate to 2x, if necessary.
+		 */
+		if (agp->mode.bits.rate != 2) 
+			new_rate = 2;
+		break;
+
+	case 0x6:				/* 1x / 4x */
+		/*
+		 * The PLL is programmed for 1x or 4x.  Don't go faster
+		 * than requested, so if the requested rate is 2x, use 1x.
+		 */
+		if (agp->mode.bits.rate == 2) 
+			new_rate = 1;
+		break;
+
+	default:				/* ??????? */
+		/*
+		 * Don't know what this PLL setting is, take the requested
+		 * rate, but warn the user.
+		 */
+		printk("%s: unknown PLL setting RNGB=%lx (PLL6_CTL=%016lx)\n",
+		       __func__, IO7_PLL_RNGB(agp_pll), agp_pll);
+		break;
+	}
+
+	/*
+	 * Set the new rate, if necessary.
+	 */
+	if (new_rate) {
+		printk("Requested AGP Rate %dX not compatible "
+		       "with PLL setting - using %dX\n",
+		       agp->mode.bits.rate,
+		       new_rate);
+
+		agp->mode.bits.rate = new_rate;
+	}
+		
+	printk("Enabling AGP on hose %d: %dX%s RQ %d\n", 
+	       agp->hose->index, agp->mode.bits.rate, 
+	       agp->mode.bits.sba ? " - SBA" : "", agp->mode.bits.rq);
+
+	csrs->AGP_CMD.csr = agp->mode.lw;
+
+	return 0;
+}
+
+static int 
+marvel_agp_bind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *mem)
+{
+	struct marvel_agp_aperture *aper = agp->aperture.sysdata;
+	return iommu_bind(aper->arena, aper->pg_start + pg_start, 
+			  mem->page_count, mem->pages);
+}
+
+static int 
+marvel_agp_unbind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *mem)
+{
+	struct marvel_agp_aperture *aper = agp->aperture.sysdata;
+	return iommu_unbind(aper->arena, aper->pg_start + pg_start,
+			    mem->page_count);
+}
+
+static unsigned long
+marvel_agp_translate(alpha_agp_info *agp, dma_addr_t addr)
+{
+	struct marvel_agp_aperture *aper = agp->aperture.sysdata;
+	unsigned long baddr = addr - aper->arena->dma_base;
+	unsigned long pte;
+
+	if (addr < agp->aperture.bus_base ||
+	    addr >= agp->aperture.bus_base + agp->aperture.size) {
+		printk("%s: addr out of range\n", __func__);
+		return -EINVAL;
+	}
+
+	pte = aper->arena->ptes[baddr >> PAGE_SHIFT];
+	if (!(pte & 1)) {
+		printk("%s: pte not valid\n", __func__);
+		return -EINVAL;
+	} 
+	return (pte >> 1) << PAGE_SHIFT;
+}
+
+struct alpha_agp_ops marvel_agp_ops =
+{
+	.setup		= marvel_agp_setup,
+	.cleanup	= marvel_agp_cleanup,
+	.configure	= marvel_agp_configure,
+	.bind		= marvel_agp_bind_memory,
+	.unbind		= marvel_agp_unbind_memory,
+	.translate	= marvel_agp_translate
+};
+
+alpha_agp_info *
+marvel_agp_info(void)
+{
+	struct pci_controller *hose;
+	io7_ioport_csrs *csrs;
+	alpha_agp_info *agp;
+	struct io7 *io7;
+
+	/*
+	 * Find the first IO7 with an AGP card.
+	 *
+	 * FIXME -- there should be a better way (we want to be able to
+	 * specify and what if the agp card is not video???)
+	 */
+	hose = NULL;
+	for (io7 = NULL; (io7 = marvel_next_io7(io7)) != NULL; ) {
+		struct pci_controller *h;
+		vuip addr;
+
+		if (!io7->ports[IO7_AGP_PORT].enabled)
+			continue;
+
+		h = io7->ports[IO7_AGP_PORT].hose;
+		addr = (vuip)build_conf_addr(h, 0, PCI_DEVFN(5, 0), 0);
+
+		if (*addr != 0xffffffffu) {
+			hose = h;
+			break;
+		}
+	}
+
+	if (!hose || !hose->sg_pci)
+		return NULL;
+
+	printk("MARVEL - using hose %d as AGP\n", hose->index);
+
+	/* 
+	 * Get the csrs from the hose.
+	 */
+	csrs = ((struct io7_port *)hose->sysdata)->csrs;
+
+	/*
+	 * Allocate the info structure.
+	 */
+	agp = kmalloc(sizeof(*agp), GFP_KERNEL);
+	if (!agp)
+		return NULL;
+
+	/*
+	 * Fill it in.
+	 */
+	agp->hose = hose;
+	agp->private = NULL;
+	agp->ops = &marvel_agp_ops;
+
+	/*
+	 * Aperture - not configured until ops.setup().
+	 */
+	agp->aperture.bus_base = 0;
+	agp->aperture.size = 0;
+	agp->aperture.sysdata = NULL;
+
+	/*
+	 * Capabilities.
+	 *
+	 * NOTE: IO7 reports through AGP_STAT that it can support a read queue
+	 *       depth of 17 (rq = 0x10). It actually only supports a depth of
+	 * 	 16 (rq = 0xf).
+	 */
+	agp->capability.lw = csrs->AGP_STAT.csr;
+	agp->capability.bits.rq = 0xf;
+	
+	/*
+	 * Mode.
+	 */
+	agp->mode.lw = csrs->AGP_CMD.csr;
+
+	return agp;
+}
diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
new file mode 100644
index 000000000..74b1d0181
--- /dev/null
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_mcpcia.c
+ *
+ * Based on code written by David A Rusling (david.rusling@reo.mts.dec.com).
+ *
+ * Code common to all MCbus-PCI Adaptor core logic chipsets
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_mcpcia.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/ptrace.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/*
+ * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
+ * One plausible explanation is that the i/o controller does not properly
+ * handle the system transaction.  Another involves timing.  Ho hum.
+ */
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CFG 0
+
+#if DEBUG_CFG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address and setup the MCPCIA_HAXR2 register
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Type 0:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:11	Device select bit.
+ * 	10:8	Function number
+ * 	 7:2	Register number
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static unsigned int
+conf_read(unsigned long addr, unsigned char type1,
+	  struct pci_controller *hose)
+{
+	unsigned long flags;
+	unsigned long mid = MCPCIA_HOSE2MID(hose->index);
+	unsigned int stat0, value, cpu;
+
+	cpu = smp_processor_id();
+
+	local_irq_save(flags);
+
+	DBG_CFG(("conf_read(addr=0x%lx, type1=%d, hose=%d)\n",
+		 addr, type1, mid));
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
+	*(vuip)MCPCIA_CAP_ERR(mid) = stat0;
+	mb();
+	*(vuip)MCPCIA_CAP_ERR(mid);
+	DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0));
+
+	mb();
+	draina();
+	mcheck_expected(cpu) = 1;
+	mcheck_taken(cpu) = 0;
+	mcheck_extra(cpu) = mid;
+	mb();
+
+	/* Access configuration space.  */
+	value = *((vuip)addr);
+	mb();
+	mb();  /* magic */
+
+	if (mcheck_taken(cpu)) {
+		mcheck_taken(cpu) = 0;
+		value = 0xffffffffU;
+		mb();
+	}
+	mcheck_expected(cpu) = 0;
+	mb();
+
+	DBG_CFG(("conf_read(): finished\n"));
+
+	local_irq_restore(flags);
+	return value;
+}
+
+static void
+conf_write(unsigned long addr, unsigned int value, unsigned char type1,
+	   struct pci_controller *hose)
+{
+	unsigned long flags;
+	unsigned long mid = MCPCIA_HOSE2MID(hose->index);
+	unsigned int stat0, cpu;
+
+	cpu = smp_processor_id();
+
+	local_irq_save(flags);	/* avoid getting hit by machine check */
+
+	/* Reset status register to avoid losing errors.  */
+	stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
+	*(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb();
+	*(vuip)MCPCIA_CAP_ERR(mid);
+	DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0));
+
+	draina();
+	mcheck_expected(cpu) = 1;
+	mcheck_extra(cpu) = mid;
+	mb();
+
+	/* Access configuration space.  */
+	*((vuip)addr) = value;
+	mb();
+	mb();  /* magic */
+	*(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
+	mcheck_expected(cpu) = 0;
+	mb();
+
+	DBG_CFG(("conf_write(): finished\n"));
+	local_irq_restore(flags);
+}
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int devfn, int where,
+	     struct pci_controller *hose, unsigned long *pci_addr,
+	     unsigned char *type1)
+{
+	u8 bus = pbus->number;
+	unsigned long addr;
+
+	DBG_CFG(("mk_conf_addr(bus=%d,devfn=0x%x,hose=%d,where=0x%x,"
+		 " pci_addr=0x%p, type1=0x%p)\n",
+		 bus, devfn, hose->index, where, pci_addr, type1));
+
+	/* Type 1 configuration cycle for *ALL* busses.  */
+	*type1 = 1;
+
+	if (!pbus->parent) /* No parent means peer PCI bus. */
+		bus = 0;
+	addr = (bus << 16) | (devfn << 8) | (where);
+	addr <<= 5; /* swizzle for SPARSE */
+	addr |= hose->config_space_base;
+
+	*pci_addr = addr;
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static int
+mcpcia_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		   int size, u32 *value)
+{
+	struct pci_controller *hose = bus->sysdata;
+	unsigned long addr, w;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, hose, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	addr |= (size - 1) * 8;
+	w = conf_read(addr, type1, hose);
+	switch (size) {
+	case 1:
+		*value = __kernel_extbl(w, where & 3);
+		break;
+	case 2:
+		*value = __kernel_extwl(w, where & 3);
+		break;
+	case 4:
+		*value = w;
+		break;
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+mcpcia_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 value)
+{
+	struct pci_controller *hose = bus->sysdata;
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, hose, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	addr |= (size - 1) * 8;
+	value = __kernel_insql(value, where & 3);
+	conf_write(addr, value, type1, hose);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops mcpcia_pci_ops = 
+{
+	.read =		mcpcia_read_config,
+	.write =	mcpcia_write_config,
+};
+
+void
+mcpcia_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	wmb();
+	*(vuip)MCPCIA_SG_TBIA(MCPCIA_HOSE2MID(hose->index)) = 0;
+	mb();
+}
+
+static int __init
+mcpcia_probe_hose(int h)
+{
+	int cpu = smp_processor_id();
+	int mid = MCPCIA_HOSE2MID(h);
+	unsigned int pci_rev;
+
+	/* Gotta be REAL careful.  If hose is absent, we get an mcheck.  */
+
+	mb();
+	mb();
+	draina();
+	wrmces(7);
+
+	mcheck_expected(cpu) = 2;	/* indicates probing */
+	mcheck_taken(cpu) = 0;
+	mcheck_extra(cpu) = mid;
+	mb();
+
+	/* Access the bus revision word. */
+	pci_rev = *(vuip)MCPCIA_REV(mid);
+
+	mb();
+	mb();  /* magic */
+	if (mcheck_taken(cpu)) {
+		mcheck_taken(cpu) = 0;
+		pci_rev = 0xffffffff;
+		mb();
+	}
+	mcheck_expected(cpu) = 0;
+	mb();
+
+	return (pci_rev >> 16) == PCI_CLASS_BRIDGE_HOST;
+}
+
+static void __init
+mcpcia_new_hose(int h)
+{
+	struct pci_controller *hose;
+	struct resource *io, *mem, *hae_mem;
+	int mid = MCPCIA_HOSE2MID(h);
+
+	hose = alloc_pci_controller();
+	if (h == 0)
+		pci_isa_hose = hose;
+	io = alloc_resource();
+	mem = alloc_resource();
+	hae_mem = alloc_resource();
+			
+	hose->io_space = io;
+	hose->mem_space = hae_mem;
+	hose->sparse_mem_base = MCPCIA_SPARSE(mid) - IDENT_ADDR;
+	hose->dense_mem_base = MCPCIA_DENSE(mid) - IDENT_ADDR;
+	hose->sparse_io_base = MCPCIA_IO(mid) - IDENT_ADDR;
+	hose->dense_io_base = 0;
+	hose->config_space_base = MCPCIA_CONF(mid);
+	hose->index = h;
+
+	io->start = MCPCIA_IO(mid) - MCPCIA_IO_BIAS;
+	io->end = io->start + 0xffff;
+	io->name = pci_io_names[h];
+	io->flags = IORESOURCE_IO;
+
+	mem->start = MCPCIA_DENSE(mid) - MCPCIA_MEM_BIAS;
+	mem->end = mem->start + 0xffffffff;
+	mem->name = pci_mem_names[h];
+	mem->flags = IORESOURCE_MEM;
+
+	hae_mem->start = mem->start;
+	hae_mem->end = mem->start + MCPCIA_MEM_MASK;
+	hae_mem->name = pci_hae0_name;
+	hae_mem->flags = IORESOURCE_MEM;
+
+	if (request_resource(&ioport_resource, io) < 0)
+		printk(KERN_ERR "Failed to request IO on hose %d\n", h);
+	if (request_resource(&iomem_resource, mem) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose %d\n", h);
+	if (request_resource(mem, hae_mem) < 0)
+		printk(KERN_ERR "Failed to request HAE_MEM on hose %d\n", h);
+}
+
+static void
+mcpcia_pci_clr_err(int mid)
+{
+	*(vuip)MCPCIA_CAP_ERR(mid);
+	*(vuip)MCPCIA_CAP_ERR(mid) = 0xffffffff;   /* Clear them all.  */
+	mb();
+	*(vuip)MCPCIA_CAP_ERR(mid);  /* Re-read for force write.  */
+}
+
+static void __init
+mcpcia_startup_hose(struct pci_controller *hose)
+{
+	int mid = MCPCIA_HOSE2MID(hose->index);
+	unsigned int tmp;
+
+	mcpcia_pci_clr_err(mid);
+
+	/* 
+	 * Set up error reporting.
+	 */
+	tmp = *(vuip)MCPCIA_CAP_ERR(mid);
+	tmp |= 0x0006;		/* master/target abort */
+	*(vuip)MCPCIA_CAP_ERR(mid) = tmp;
+	mb();
+	tmp = *(vuip)MCPCIA_CAP_ERR(mid);
+
+	/*
+	 * Set up the PCI->physical memory translation windows.
+	 *
+	 * Window 0 is scatter-gather 8MB at 8MB (for isa)
+	 * Window 1 is scatter-gather (up to) 1GB at 1GB (for pci)
+	 * Window 2 is direct access 2GB at 2GB
+	 */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci = iommu_arena_new(hose, 0x40000000,
+				       size_for_memory(0x40000000),
+				       SMP_CACHE_BYTES);
+
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x80000000;
+
+	*(vuip)MCPCIA_W0_BASE(mid) = hose->sg_isa->dma_base | 3;
+	*(vuip)MCPCIA_W0_MASK(mid) = (hose->sg_isa->size - 1) & 0xfff00000;
+	*(vuip)MCPCIA_T0_BASE(mid) = virt_to_phys(hose->sg_isa->ptes) >> 8;
+
+	*(vuip)MCPCIA_W1_BASE(mid) = hose->sg_pci->dma_base | 3;
+	*(vuip)MCPCIA_W1_MASK(mid) = (hose->sg_pci->size - 1) & 0xfff00000;
+	*(vuip)MCPCIA_T1_BASE(mid) = virt_to_phys(hose->sg_pci->ptes) >> 8;
+
+	*(vuip)MCPCIA_W2_BASE(mid) = __direct_map_base | 1;
+	*(vuip)MCPCIA_W2_MASK(mid) = (__direct_map_size - 1) & 0xfff00000;
+	*(vuip)MCPCIA_T2_BASE(mid) = 0;
+
+	*(vuip)MCPCIA_W3_BASE(mid) = 0x0;
+
+	mcpcia_pci_tbi(hose, 0, -1);
+
+	*(vuip)MCPCIA_HBASE(mid) = 0x0;
+	mb();
+
+	*(vuip)MCPCIA_HAE_MEM(mid) = 0U;
+	mb();
+	*(vuip)MCPCIA_HAE_MEM(mid); /* read it back. */
+	*(vuip)MCPCIA_HAE_IO(mid) = 0;
+	mb();
+	*(vuip)MCPCIA_HAE_IO(mid);  /* read it back. */
+}
+
+void __init
+mcpcia_init_arch(void)
+{
+	/* With multiple PCI busses, we play with I/O as physical addrs.  */
+	ioport_resource.end = ~0UL;
+
+	/* Allocate hose 0.  That's the one that all the ISA junk hangs
+	   off of, from which we'll be registering stuff here in a bit.
+	   Other hose detection is done in mcpcia_init_hoses, which is
+	   called from init_IRQ.  */
+
+	mcpcia_new_hose(0);
+}
+
+/* This is called from init_IRQ, since we cannot take interrupts
+   before then.  Which means we cannot do this in init_arch.  */
+
+void __init
+mcpcia_init_hoses(void)
+{
+	struct pci_controller *hose;
+	int hose_count;
+	int h;
+
+	/* First, find how many hoses we have.  */
+	hose_count = 0;
+	for (h = 0; h < MCPCIA_MAX_HOSES; ++h) {
+		if (mcpcia_probe_hose(h)) {
+			if (h != 0)
+				mcpcia_new_hose(h);
+			hose_count++;
+		}
+	}
+
+	printk("mcpcia_init_hoses: found %d hoses\n", hose_count);
+
+	/* Now do init for each hose.  */
+	for (hose = hose_head; hose; hose = hose->next)
+		mcpcia_startup_hose(hose);
+}
+
+static void
+mcpcia_print_uncorrectable(struct el_MCPCIA_uncorrected_frame_mcheck *logout)
+{
+	struct el_common_EV5_uncorrectable_mcheck *frame;
+	int i;
+
+	frame = &logout->procdata;
+
+	/* Print PAL fields */
+	for (i = 0; i < 24; i += 2) {
+		printk("  paltmp[%d-%d] = %16lx %16lx\n",
+		       i, i+1, frame->paltemp[i], frame->paltemp[i+1]);
+	}
+	for (i = 0; i < 8; i += 2) {
+		printk("  shadow[%d-%d] = %16lx %16lx\n",
+		       i, i+1, frame->shadow[i], 
+		       frame->shadow[i+1]);
+	}
+	printk("  Addr of excepting instruction  = %16lx\n",
+	       frame->exc_addr);
+	printk("  Summary of arithmetic traps    = %16lx\n",
+	       frame->exc_sum);
+	printk("  Exception mask                 = %16lx\n",
+	       frame->exc_mask);
+	printk("  Base address for PALcode       = %16lx\n",
+	       frame->pal_base);
+	printk("  Interrupt Status Reg           = %16lx\n",
+	       frame->isr);
+	printk("  CURRENT SETUP OF EV5 IBOX      = %16lx\n",
+	       frame->icsr);
+	printk("  I-CACHE Reg %s parity error   = %16lx\n",
+	       (frame->ic_perr_stat & 0x800L) ? 
+	       "Data" : "Tag", 
+	       frame->ic_perr_stat); 
+	printk("  D-CACHE error Reg              = %16lx\n",
+	       frame->dc_perr_stat);
+	if (frame->dc_perr_stat & 0x2) {
+		switch (frame->dc_perr_stat & 0x03c) {
+		case 8:
+			printk("    Data error in bank 1\n");
+			break;
+		case 4:
+			printk("    Data error in bank 0\n");
+			break;
+		case 20:
+			printk("    Tag error in bank 1\n");
+			break;
+		case 10:
+			printk("    Tag error in bank 0\n");
+			break;
+		}
+	}
+	printk("  Effective VA                   = %16lx\n",
+	       frame->va);
+	printk("  Reason for D-stream            = %16lx\n",
+	       frame->mm_stat);
+	printk("  EV5 SCache address             = %16lx\n",
+	       frame->sc_addr);
+	printk("  EV5 SCache TAG/Data parity     = %16lx\n",
+	       frame->sc_stat);
+	printk("  EV5 BC_TAG_ADDR                = %16lx\n",
+	       frame->bc_tag_addr);
+	printk("  EV5 EI_ADDR: Phys addr of Xfer = %16lx\n",
+	       frame->ei_addr);
+	printk("  Fill Syndrome                  = %16lx\n",
+	       frame->fill_syndrome);
+	printk("  EI_STAT reg                    = %16lx\n",
+	       frame->ei_stat);
+	printk("  LD_LOCK                        = %16lx\n",
+	       frame->ld_lock);
+}
+
+static void
+mcpcia_print_system_area(unsigned long la_ptr)
+{
+	struct el_common *frame;
+	struct pci_controller *hose;
+
+	struct IOD_subpacket {
+	  unsigned long base;
+	  unsigned int whoami;
+	  unsigned int rsvd1;
+	  unsigned int pci_rev;
+	  unsigned int cap_ctrl;
+	  unsigned int hae_mem;
+	  unsigned int hae_io;
+	  unsigned int int_ctl;
+	  unsigned int int_reg;
+	  unsigned int int_mask0;
+	  unsigned int int_mask1;
+	  unsigned int mc_err0;
+	  unsigned int mc_err1;
+	  unsigned int cap_err;
+	  unsigned int rsvd2;
+	  unsigned int pci_err1;
+	  unsigned int mdpa_stat;
+	  unsigned int mdpa_syn;
+	  unsigned int mdpb_stat;
+	  unsigned int mdpb_syn;
+	  unsigned int rsvd3;
+	  unsigned int rsvd4;
+	  unsigned int rsvd5;
+	} *iodpp;
+
+	frame = (struct el_common *)la_ptr;
+	iodpp = (struct IOD_subpacket *) (la_ptr + frame->sys_offset);
+
+	for (hose = hose_head; hose; hose = hose->next, iodpp++) {
+
+	  printk("IOD %d Register Subpacket - Bridge Base Address %16lx\n",
+		 hose->index, iodpp->base);
+	  printk("  WHOAMI      = %8x\n", iodpp->whoami);
+	  printk("  PCI_REV     = %8x\n", iodpp->pci_rev);
+	  printk("  CAP_CTRL    = %8x\n", iodpp->cap_ctrl);
+	  printk("  HAE_MEM     = %8x\n", iodpp->hae_mem);
+	  printk("  HAE_IO      = %8x\n", iodpp->hae_io);
+	  printk("  INT_CTL     = %8x\n", iodpp->int_ctl);
+	  printk("  INT_REG     = %8x\n", iodpp->int_reg);
+	  printk("  INT_MASK0   = %8x\n", iodpp->int_mask0);
+	  printk("  INT_MASK1   = %8x\n", iodpp->int_mask1);
+	  printk("  MC_ERR0     = %8x\n", iodpp->mc_err0);
+	  printk("  MC_ERR1     = %8x\n", iodpp->mc_err1);
+	  printk("  CAP_ERR     = %8x\n", iodpp->cap_err);
+	  printk("  PCI_ERR1    = %8x\n", iodpp->pci_err1);
+	  printk("  MDPA_STAT   = %8x\n", iodpp->mdpa_stat);
+	  printk("  MDPA_SYN    = %8x\n", iodpp->mdpa_syn);
+	  printk("  MDPB_STAT   = %8x\n", iodpp->mdpb_stat);
+	  printk("  MDPB_SYN    = %8x\n", iodpp->mdpb_syn);
+	}
+}
+
+void
+mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
+	unsigned int cpu = smp_processor_id();
+	int expected;
+
+	mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr;
+	expected = mcheck_expected(cpu);
+
+	mb();
+	mb();  /* magic */
+	draina();
+
+	switch (expected) {
+	case 0:
+	    {
+		/* FIXME: how do we figure out which hose the
+		   error was on?  */	
+		struct pci_controller *hose;
+		for (hose = hose_head; hose; hose = hose->next)
+			mcpcia_pci_clr_err(MCPCIA_HOSE2MID(hose->index));
+		break;
+	    }
+	case 1:
+		mcpcia_pci_clr_err(mcheck_extra(cpu));
+		break;
+	default:
+		/* Otherwise, we're being called from mcpcia_probe_hose
+		   and there's no hose clear an error from.  */
+		break;
+	}
+
+	wrmces(0x7);
+	mb();
+
+	process_mcheck_info(vector, la_ptr, "MCPCIA", expected != 0);
+	if (!expected && vector != 0x620 && vector != 0x630) {
+		mcpcia_print_uncorrectable(mchk_logout);
+		mcpcia_print_system_area(la_ptr);
+	}
+}
diff --git a/arch/alpha/kernel/core_polaris.c b/arch/alpha/kernel/core_polaris.c
new file mode 100644
index 000000000..75d622d96
--- /dev/null
+++ b/arch/alpha/kernel/core_polaris.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *      linux/arch/alpha/kernel/core_polaris.c
+ *
+ * POLARIS chip-specific code
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_polaris.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address.  This is fairly straightforward
+ * on POLARIS, since the chip itself generates Type 0 or Type 1
+ * cycles automatically depending on the bus number (Bus 0 is
+ * hardwired to Type 0, all others are Type 1.  Peer bridges
+ * are not supported).
+ *
+ * All types:
+ *
+ *  3 3 3 3|3 3 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |1|1|1|1|1|0|0|1|1|1|1|1|1|1|1|0|B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|x|x|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., scsi and ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, u8 *type1)
+{
+	u8 bus = pbus->number;
+
+	*type1 = (bus == 0) ? 0 : 1;
+	*pci_addr = (bus << 16) | (device_fn << 8) | (where) |
+		    POLARIS_DENSE_CONFIG_BASE;
+
+        DBG_CFG(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x,"
+                 " returning address 0x%p\n"
+                 bus, device_fn, where, *pci_addr));
+
+	return 0;
+}
+
+static int
+polaris_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 *value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*value = *(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+
+static int 
+polaris_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops polaris_pci_ops = 
+{
+	.read =		polaris_read_config,
+	.write =	polaris_write_config,
+};
+
+void __init
+polaris_init_arch(void)
+{
+	struct pci_controller *hose;
+
+	/* May need to initialize error reporting (see PCICTL0/1), but
+	 * for now assume that the firmware has done the right thing
+	 * already.
+	 */
+#if 0
+	printk("polaris_init_arch(): trusting firmware for setup\n");
+#endif
+
+	/*
+	 * Create our single hose.
+	 */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	hose->sparse_mem_base = 0;
+	hose->dense_mem_base = POLARIS_DENSE_MEM_BASE - IDENT_ADDR;
+	hose->sparse_io_base = 0;
+	hose->dense_io_base = POLARIS_DENSE_IO_BASE - IDENT_ADDR;
+
+	hose->sg_isa = hose->sg_pci = NULL;
+
+	/* The I/O window is fixed at 2G @ 2G.  */
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x80000000;
+}
+
+static inline void
+polaris_pci_clr_err(void)
+{
+	*(vusp)POLARIS_W_STATUS;
+	/* Write 1's to settable bits to clear errors */
+	*(vusp)POLARIS_W_STATUS = 0x7800;
+	mb();
+	*(vusp)POLARIS_W_STATUS;
+}
+
+void
+polaris_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	/* Clear the error before any reporting.  */
+	mb();
+	mb();
+	draina();
+	polaris_pci_clr_err();
+	wrmces(0x7);
+	mb();
+
+	process_mcheck_info(vector, la_ptr, "POLARIS",
+			    mcheck_expected(0));
+}
diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
new file mode 100644
index 000000000..98d5b6ff8
--- /dev/null
+++ b/arch/alpha/kernel/core_t2.c
@@ -0,0 +1,624 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_t2.c
+ *
+ * Written by Jay A Estabrook (jestabro@amt.tay1.dec.com).
+ * December 1996.
+ *
+ * based on CIA code by David A Rusling (david.rusling@reo.mts.dec.com)
+ *
+ * Code common to all T2 core logic chips.
+ */
+
+#define __EXTERN_INLINE
+#include <asm/io.h>
+#include <asm/core_t2.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/delay.h>
+#include <asm/mce.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/* For dumping initial DMA window settings. */
+#define DEBUG_PRINT_INITIAL_SETTINGS 0
+
+/* For dumping final DMA window settings. */
+#define DEBUG_PRINT_FINAL_SETTINGS 0
+
+/*
+ * By default, we direct-map starting at 2GB, in order to allow the
+ * maximum size direct-map window (2GB) to match the maximum amount of
+ * memory (2GB) that can be present on SABLEs. But that limits the
+ * floppy to DMA only via the scatter/gather window set up for 8MB
+ * ISA DMA, since the maximum ISA DMA address is 2GB-1.
+ *
+ * For now, this seems a reasonable trade-off: even though most SABLEs
+ * have less than 1GB of memory, floppy usage/performance will not
+ * really be affected by forcing it to go via scatter/gather...
+ */
+#define T2_DIRECTMAP_2G 1
+
+#if T2_DIRECTMAP_2G
+# define T2_DIRECTMAP_START	0x80000000UL
+# define T2_DIRECTMAP_LENGTH	0x80000000UL
+#else
+# define T2_DIRECTMAP_START	0x40000000UL
+# define T2_DIRECTMAP_LENGTH	0x40000000UL
+#endif
+
+/* The ISA scatter/gather window settings. */
+#define T2_ISA_SG_START		0x00800000UL
+#define T2_ISA_SG_LENGTH	0x00800000UL
+
+/*
+ * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
+ * One plausible explanation is that the i/o controller does not properly
+ * handle the system transaction.  Another involves timing.  Ho hum.
+ */
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG(args)	printk args
+#else
+# define DBG(args)
+#endif
+
+static volatile unsigned int t2_mcheck_any_expected;
+static volatile unsigned int t2_mcheck_last_taken;
+
+/* Place to save the DMA Window registers as set up by SRM
+   for restoration during shutdown. */
+static struct
+{
+	struct {
+		unsigned long wbase;
+		unsigned long wmask;
+		unsigned long tbase;
+	} window[2];
+	unsigned long hae_1;
+  	unsigned long hae_2;
+	unsigned long hae_3;
+	unsigned long hae_4;
+	unsigned long hbase;
+} t2_saved_config __attribute((common));
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address and setup the T2_HAXR2 register
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Type 0:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:11	Device select bit.
+ * 	10:8	Function number
+ * 	 7:2	Register number
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBG(("mk_conf_addr(bus=%d, dfn=0x%x, where=0x%x,"
+	     " addr=0x%lx, type1=0x%x)\n",
+	     bus, device_fn, where, pci_addr, type1));
+
+	if (bus == 0) {
+		int device = device_fn >> 3;
+
+		/* Type 0 configuration cycle.  */
+
+		if (device > 8) {
+			DBG(("mk_conf_addr: device (%d)>20, returning -1\n",
+			     device));
+			return -1;
+		}
+
+		*type1 = 0;
+		addr = (0x0800L << device) | ((device_fn & 7) << 8) | (where);
+	} else {
+		/* Type 1 configuration cycle.  */
+		*type1 = 1;
+		addr = (bus << 16) | (device_fn << 8) | (where);
+	}
+	*pci_addr = addr;
+	DBG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+/*
+ * NOTE: both conf_read() and conf_write() may set HAE_3 when needing
+ *       to do type1 access. This is protected by the use of spinlock IRQ
+ *       primitives in the wrapper functions pci_{read,write}_config_*()
+ *       defined in drivers/pci/pci.c.
+ */
+static unsigned int
+conf_read(unsigned long addr, unsigned char type1)
+{
+	unsigned int value, cpu, taken;
+	unsigned long t2_cfg = 0;
+
+	cpu = smp_processor_id();
+
+	DBG(("conf_read(addr=0x%lx, type1=%d)\n", addr, type1));
+
+	/* If Type1 access, must set T2 CFG.  */
+	if (type1) {
+		t2_cfg = *(vulp)T2_HAE_3 & ~0xc0000000UL;
+		*(vulp)T2_HAE_3 = 0x40000000UL | t2_cfg;
+		mb();
+	}
+	mb();
+	draina();
+
+	mcheck_expected(cpu) = 1;
+	mcheck_taken(cpu) = 0;
+	t2_mcheck_any_expected |= (1 << cpu);
+	mb();
+
+	/* Access configuration space. */
+	value = *(vuip)addr;
+	mb();
+	mb();  /* magic */
+
+	/* Wait for possible mcheck. Also, this lets other CPUs clear
+	   their mchecks as well, as they can reliably tell when
+	   another CPU is in the midst of handling a real mcheck via
+	   the "taken" function. */
+	udelay(100);
+
+	if ((taken = mcheck_taken(cpu))) {
+		mcheck_taken(cpu) = 0;
+		t2_mcheck_last_taken |= (1 << cpu);
+		value = 0xffffffffU;
+		mb();
+	}
+	mcheck_expected(cpu) = 0;
+	t2_mcheck_any_expected = 0;
+	mb();
+
+	/* If Type1 access, must reset T2 CFG so normal IO space ops work.  */
+	if (type1) {
+		*(vulp)T2_HAE_3 = t2_cfg;
+		mb();
+	}
+
+	return value;
+}
+
+static void
+conf_write(unsigned long addr, unsigned int value, unsigned char type1)
+{
+	unsigned int cpu, taken;
+	unsigned long t2_cfg = 0;
+
+	cpu = smp_processor_id();
+
+	/* If Type1 access, must set T2 CFG.  */
+	if (type1) {
+		t2_cfg = *(vulp)T2_HAE_3 & ~0xc0000000UL;
+		*(vulp)T2_HAE_3 = t2_cfg | 0x40000000UL;
+		mb();
+	}
+	mb();
+	draina();
+
+	mcheck_expected(cpu) = 1;
+	mcheck_taken(cpu) = 0;
+	t2_mcheck_any_expected |= (1 << cpu);
+	mb();
+
+	/* Access configuration space.  */
+	*(vuip)addr = value;
+	mb();
+	mb();  /* magic */
+
+	/* Wait for possible mcheck. Also, this lets other CPUs clear
+	   their mchecks as well, as they can reliably tell when
+	   this CPU is in the midst of handling a real mcheck via
+	   the "taken" function. */
+	udelay(100);
+
+	if ((taken = mcheck_taken(cpu))) {
+		mcheck_taken(cpu) = 0;
+		t2_mcheck_last_taken |= (1 << cpu);
+		mb();
+	}
+	mcheck_expected(cpu) = 0;
+	t2_mcheck_any_expected = 0;
+	mb();
+
+	/* If Type1 access, must reset T2 CFG so normal IO space ops work.  */
+	if (type1) {
+		*(vulp)T2_HAE_3 = t2_cfg;
+		mb();
+	}
+}
+
+static int
+t2_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+	       int size, u32 *value)
+{
+	unsigned long addr, pci_addr;
+	unsigned char type1;
+	int shift;
+	long mask;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	shift = (where & 3) * 8;
+	addr = (pci_addr << 5) + mask + T2_CONF;
+	*value = conf_read(addr, type1) >> (shift);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+t2_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size,
+		u32 value)
+{
+	unsigned long addr, pci_addr;
+	unsigned char type1;
+	long mask;
+
+	if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	mask = (size - 1) * 8;
+	addr = (pci_addr << 5) + mask + T2_CONF;
+	conf_write(addr, value << ((where & 3) * 8), type1);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops t2_pci_ops = 
+{
+	.read =		t2_read_config,
+	.write =	t2_write_config,
+};
+
+static void __init
+t2_direct_map_window1(unsigned long base, unsigned long length)
+{
+	unsigned long temp;
+
+	__direct_map_base = base;
+	__direct_map_size = length;
+
+	temp = (base & 0xfff00000UL) | ((base + length - 1) >> 20);
+	*(vulp)T2_WBASE1 = temp | 0x80000UL; /* OR in ENABLE bit */
+	temp = (length - 1) & 0xfff00000UL;
+	*(vulp)T2_WMASK1 = temp;
+	*(vulp)T2_TBASE1 = 0;
+
+#if DEBUG_PRINT_FINAL_SETTINGS
+	printk("%s: setting WBASE1=0x%lx WMASK1=0x%lx TBASE1=0x%lx\n",
+	       __func__, *(vulp)T2_WBASE1, *(vulp)T2_WMASK1, *(vulp)T2_TBASE1);
+#endif
+}
+
+static void __init
+t2_sg_map_window2(struct pci_controller *hose,
+		  unsigned long base,
+		  unsigned long length)
+{
+	unsigned long temp;
+
+	/* Note we can only do 1 SG window, as the other is for direct, so
+	   do an ISA SG area, especially for the floppy. */
+	hose->sg_isa = iommu_arena_new(hose, base, length, SMP_CACHE_BYTES);
+	hose->sg_pci = NULL;
+
+	temp = (base & 0xfff00000UL) | ((base + length - 1) >> 20);
+	*(vulp)T2_WBASE2 = temp | 0xc0000UL; /* OR in ENABLE/SG bits */
+	temp = (length - 1) & 0xfff00000UL;
+	*(vulp)T2_WMASK2 = temp;
+	*(vulp)T2_TBASE2 = virt_to_phys(hose->sg_isa->ptes) >> 1;
+	mb();
+
+	t2_pci_tbi(hose, 0, -1); /* flush TLB all */
+
+#if DEBUG_PRINT_FINAL_SETTINGS
+	printk("%s: setting WBASE2=0x%lx WMASK2=0x%lx TBASE2=0x%lx\n",
+	       __func__, *(vulp)T2_WBASE2, *(vulp)T2_WMASK2, *(vulp)T2_TBASE2);
+#endif
+}
+
+static void __init
+t2_save_configuration(void)
+{
+#if DEBUG_PRINT_INITIAL_SETTINGS
+	printk("%s: HAE_1 was 0x%lx\n", __func__, srm_hae); /* HW is 0 */
+	printk("%s: HAE_2 was 0x%lx\n", __func__, *(vulp)T2_HAE_2);
+	printk("%s: HAE_3 was 0x%lx\n", __func__, *(vulp)T2_HAE_3);
+	printk("%s: HAE_4 was 0x%lx\n", __func__, *(vulp)T2_HAE_4);
+	printk("%s: HBASE was 0x%lx\n", __func__, *(vulp)T2_HBASE);
+
+	printk("%s: WBASE1=0x%lx WMASK1=0x%lx TBASE1=0x%lx\n", __func__,
+	       *(vulp)T2_WBASE1, *(vulp)T2_WMASK1, *(vulp)T2_TBASE1);
+	printk("%s: WBASE2=0x%lx WMASK2=0x%lx TBASE2=0x%lx\n", __func__,
+	       *(vulp)T2_WBASE2, *(vulp)T2_WMASK2, *(vulp)T2_TBASE2);
+#endif
+
+	/*
+	 * Save the DMA Window registers.
+	 */
+	t2_saved_config.window[0].wbase = *(vulp)T2_WBASE1;
+	t2_saved_config.window[0].wmask = *(vulp)T2_WMASK1;
+	t2_saved_config.window[0].tbase = *(vulp)T2_TBASE1;
+	t2_saved_config.window[1].wbase = *(vulp)T2_WBASE2;
+	t2_saved_config.window[1].wmask = *(vulp)T2_WMASK2;
+	t2_saved_config.window[1].tbase = *(vulp)T2_TBASE2;
+
+	t2_saved_config.hae_1 = srm_hae; /* HW is already set to 0 */
+	t2_saved_config.hae_2 = *(vulp)T2_HAE_2;
+	t2_saved_config.hae_3 = *(vulp)T2_HAE_3;
+	t2_saved_config.hae_4 = *(vulp)T2_HAE_4;
+	t2_saved_config.hbase = *(vulp)T2_HBASE;
+}
+
+void __init
+t2_init_arch(void)
+{
+	struct pci_controller *hose;
+	struct resource *hae_mem;
+	unsigned long temp;
+	unsigned int i;
+
+	for (i = 0; i < NR_CPUS; i++) {
+		mcheck_expected(i) = 0;
+		mcheck_taken(i) = 0;
+	}
+	t2_mcheck_any_expected = 0;
+	t2_mcheck_last_taken = 0;
+
+	/* Enable scatter/gather TLB use.  */
+	temp = *(vulp)T2_IOCSR;
+	if (!(temp & (0x1UL << 26))) {
+		printk("t2_init_arch: enabling SG TLB, IOCSR was 0x%lx\n",
+		       temp);
+		*(vulp)T2_IOCSR = temp | (0x1UL << 26);
+		mb();	
+		*(vulp)T2_IOCSR; /* read it back to make sure */
+	}
+
+	t2_save_configuration();
+
+	/*
+	 * Create our single hose.
+	 */
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hae_mem = alloc_resource();
+	hae_mem->start = 0;
+	hae_mem->end = T2_MEM_R1_MASK;
+	hae_mem->name = pci_hae0_name;
+	if (request_resource(&iomem_resource, hae_mem) < 0)
+		printk(KERN_ERR "Failed to request HAE_MEM\n");
+	hose->mem_space = hae_mem;
+	hose->index = 0;
+
+	hose->sparse_mem_base = T2_SPARSE_MEM - IDENT_ADDR;
+	hose->dense_mem_base = T2_DENSE_MEM - IDENT_ADDR;
+	hose->sparse_io_base = T2_IO - IDENT_ADDR;
+	hose->dense_io_base = 0;
+
+	/*
+	 * Set up the PCI->physical memory translation windows.
+	 *
+	 * Window 1 is direct mapped.
+	 * Window 2 is scatter/gather (for ISA).
+	 */
+
+	t2_direct_map_window1(T2_DIRECTMAP_START, T2_DIRECTMAP_LENGTH);
+
+	/* Always make an ISA DMA window. */
+	t2_sg_map_window2(hose, T2_ISA_SG_START, T2_ISA_SG_LENGTH);
+
+	*(vulp)T2_HBASE = 0x0; /* Disable HOLES. */
+
+	/* Zero HAE.  */
+	*(vulp)T2_HAE_1 = 0; mb(); /* Sparse MEM HAE */
+	*(vulp)T2_HAE_2 = 0; mb(); /* Sparse I/O HAE */
+	*(vulp)T2_HAE_3 = 0; mb(); /* Config Space HAE */
+
+	/*
+	 * We also now zero out HAE_4, the dense memory HAE, so that
+	 * we need not account for its "offset" when accessing dense
+	 * memory resources which we allocated in our normal way. This
+	 * HAE would need to stay untouched were we to keep the SRM
+	 * resource settings.
+	 *
+	 * Thus we can now run standard X servers on SABLE/LYNX. :-)
+	 */
+	*(vulp)T2_HAE_4 = 0; mb();
+}
+
+void
+t2_kill_arch(int mode)
+{
+	/*
+	 * Restore the DMA Window registers.
+	 */
+	*(vulp)T2_WBASE1 = t2_saved_config.window[0].wbase;
+	*(vulp)T2_WMASK1 = t2_saved_config.window[0].wmask;
+	*(vulp)T2_TBASE1 = t2_saved_config.window[0].tbase;
+	*(vulp)T2_WBASE2 = t2_saved_config.window[1].wbase;
+	*(vulp)T2_WMASK2 = t2_saved_config.window[1].wmask;
+	*(vulp)T2_TBASE2 = t2_saved_config.window[1].tbase;
+	mb();
+
+	*(vulp)T2_HAE_1 = srm_hae;
+	*(vulp)T2_HAE_2 = t2_saved_config.hae_2;
+	*(vulp)T2_HAE_3 = t2_saved_config.hae_3;
+	*(vulp)T2_HAE_4 = t2_saved_config.hae_4;
+	*(vulp)T2_HBASE = t2_saved_config.hbase;
+	mb();
+	*(vulp)T2_HBASE; /* READ it back to ensure WRITE occurred. */
+}
+
+void
+t2_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	unsigned long t2_iocsr;
+
+	t2_iocsr = *(vulp)T2_IOCSR;
+
+	/* set the TLB Clear bit */
+	*(vulp)T2_IOCSR = t2_iocsr | (0x1UL << 28);
+	mb();
+	*(vulp)T2_IOCSR; /* read it back to make sure */
+
+	/* clear the TLB Clear bit */
+	*(vulp)T2_IOCSR = t2_iocsr & ~(0x1UL << 28);
+	mb();
+	*(vulp)T2_IOCSR; /* read it back to make sure */
+}
+
+#define SIC_SEIC (1UL << 33)    /* System Event Clear */
+
+static void
+t2_clear_errors(int cpu)
+{
+	struct sable_cpu_csr *cpu_regs;
+
+	cpu_regs = (struct sable_cpu_csr *)T2_CPUn_BASE(cpu);
+		
+	cpu_regs->sic &= ~SIC_SEIC;
+
+	/* Clear CPU errors.  */
+	cpu_regs->bcce |= cpu_regs->bcce;
+	cpu_regs->cbe  |= cpu_regs->cbe;
+	cpu_regs->bcue |= cpu_regs->bcue;
+	cpu_regs->dter |= cpu_regs->dter;
+
+	*(vulp)T2_CERR1 |= *(vulp)T2_CERR1;
+	*(vulp)T2_PERR1 |= *(vulp)T2_PERR1;
+
+	mb();
+	mb();  /* magic */
+}
+
+/*
+ * SABLE seems to have a "broadcast" style machine check, in that all
+ * CPUs receive it. And, the issuing CPU, in the case of PCI Config
+ * space read/write faults, will also receive a second mcheck, upon
+ * lowering IPL during completion processing in pci_read_config_byte()
+ * et al.
+ *
+ * Hence all the taken/expected/any_expected/last_taken stuff...
+ */
+void
+t2_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	int cpu = smp_processor_id();
+#ifdef CONFIG_VERBOSE_MCHECK
+	struct el_common *mchk_header = (struct el_common *)la_ptr;
+#endif
+
+	/* Clear the error before any reporting.  */
+	mb();
+	mb();  /* magic */
+	draina();
+	t2_clear_errors(cpu);
+
+	/* This should not actually be done until the logout frame is
+	   examined, but, since we don't do that, go on and do this... */
+	wrmces(0x7);
+	mb();
+
+	/* Now, do testing for the anomalous conditions. */
+	if (!mcheck_expected(cpu) && t2_mcheck_any_expected) {
+		/*
+		 * FUNKY: Received mcheck on a CPU and not
+		 * expecting it, but another CPU is expecting one.
+		 *
+		 * Just dismiss it for now on this CPU...
+		 */
+#ifdef CONFIG_VERBOSE_MCHECK
+		if (alpha_verbose_mcheck > 1) {
+			printk("t2_machine_check(cpu%d): any_expected 0x%x -"
+			       " (assumed) spurious -"
+			       " code 0x%x\n", cpu, t2_mcheck_any_expected,
+			       (unsigned int)mchk_header->code);
+		}
+#endif
+		return;
+	}
+
+	if (!mcheck_expected(cpu) && !t2_mcheck_any_expected) {
+		if (t2_mcheck_last_taken & (1 << cpu)) {
+#ifdef CONFIG_VERBOSE_MCHECK
+		    if (alpha_verbose_mcheck > 1) {
+			printk("t2_machine_check(cpu%d): last_taken 0x%x - "
+			       "unexpected mcheck - code 0x%x\n",
+			       cpu, t2_mcheck_last_taken,
+			       (unsigned int)mchk_header->code);
+		    }
+#endif
+		    t2_mcheck_last_taken = 0;
+		    mb();
+		    return;
+		} else {
+			t2_mcheck_last_taken = 0;
+			mb();
+		}
+	}
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		printk("%s t2_mcheck(cpu%d): last_taken 0x%x - "
+		       "any_expected 0x%x - code 0x%x\n",
+		       (mcheck_expected(cpu) ? "EX" : "UN"), cpu,
+		       t2_mcheck_last_taken, t2_mcheck_any_expected,
+		       (unsigned int)mchk_header->code);
+	}
+#endif
+
+	process_mcheck_info(vector, la_ptr, "T2", mcheck_expected(cpu));
+}
diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c
new file mode 100644
index 000000000..77f5d68ed
--- /dev/null
+++ b/arch/alpha/kernel/core_titan.c
@@ -0,0 +1,802 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_titan.c
+ *
+ * Code common to all TITAN core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_titan.h>
+#undef __EXTERN_INLINE
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <linux/memblock.h>
+
+#include <asm/ptrace.h>
+#include <asm/smp.h>
+#include <asm/tlbflush.h>
+#include <asm/vga.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/* Save Titan configuration data as the console had it set up.  */
+
+struct
+{
+	unsigned long wsba[4];
+	unsigned long wsm[4];
+	unsigned long tba[4];
+} saved_config[4] __attribute__((common));
+
+/*
+ * Is PChip 1 present? No need to query it more than once.
+ */
+static int titan_pchip1_present;
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+
+/*
+ * Routines to access TIG registers.
+ */
+static inline volatile unsigned long *
+mk_tig_addr(int offset)
+{
+	return (volatile unsigned long *)(TITAN_TIG_SPACE + (offset << 6));
+}
+
+static inline u8 
+titan_read_tig(int offset, u8 value)
+{
+	volatile unsigned long *tig_addr = mk_tig_addr(offset);
+	return (u8)(*tig_addr & 0xff);
+}
+
+static inline void 
+titan_write_tig(int offset, u8 value)
+{
+	volatile unsigned long *tig_addr = mk_tig_addr(offset);
+	*tig_addr = (unsigned long)value;
+}
+
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Note that all config space accesses use Type 1 address format.
+ *
+ * Note also that type 1 is determined by non-zero bus number.
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	struct pci_controller *hose = pbus->sysdata;
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBG_CFG(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x, "
+		 "pci_addr=0x%p, type1=0x%p)\n",
+		 bus, device_fn, where, pci_addr, type1));
+
+	if (!pbus->parent) /* No parent means peer PCI bus. */
+		bus = 0;
+        *type1 = (bus != 0);
+
+        addr = (bus << 16) | (device_fn << 8) | where;
+	addr |= hose->config_space_base;
+		
+	*pci_addr = addr;
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static int
+titan_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		  int size, u32 *value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*value = *(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+titan_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		   int size, u32 value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops titan_pci_ops = 
+{
+	.read =		titan_read_config,
+	.write =	titan_write_config,
+};
+
+
+void
+titan_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	titan_pachip *pachip = 
+	  (hose->index & 1) ? TITAN_pachip1 : TITAN_pachip0;
+	titan_pachip_port *port;
+	volatile unsigned long *csr;
+	unsigned long value;
+
+	/* Get the right hose.  */
+	port = &pachip->g_port;
+	if (hose->index & 2) 
+		port = &pachip->a_port;
+
+	/* We can invalidate up to 8 tlb entries in a go.  The flush
+	   matches against <31:16> in the pci address.  
+	   Note that gtlbi* and atlbi* are in the same place in the g_port
+	   and a_port, respectively, so the g_port offset can be used
+	   even if hose is an a_port */
+	csr = &port->port_specific.g.gtlbia.csr;
+	if (((start ^ end) & 0xffff0000) == 0)
+		csr = &port->port_specific.g.gtlbiv.csr;
+
+	/* For TBIA, it doesn't matter what value we write.  For TBI, 
+	   it's the shifted tag bits.  */
+	value = (start & 0xffff0000) >> 12;
+
+	wmb();
+	*csr = value;
+	mb();
+	*csr;
+}
+
+static int
+titan_query_agp(titan_pachip_port *port)
+{
+	union TPAchipPCTL pctl;
+
+	/* set up APCTL */
+	pctl.pctl_q_whole = port->pctl.csr;
+
+	return pctl.pctl_r_bits.apctl_v_agp_present;
+
+}
+
+static void __init
+titan_init_one_pachip_port(titan_pachip_port *port, int index)
+{
+	struct pci_controller *hose;
+
+	hose = alloc_pci_controller();
+	if (index == 0)
+		pci_isa_hose = hose;
+	hose->io_space = alloc_resource();
+	hose->mem_space = alloc_resource();
+
+	/*
+	 * This is for userland consumption.  The 40-bit PIO bias that we 
+	 * use in the kernel through KSEG doesn't work in the page table 
+	 * based user mappings. (43-bit KSEG sign extends the physical
+	 * address from bit 40 to hit the I/O bit - mapped addresses don't).
+	 * So make sure we get the 43-bit PIO bias.  
+	 */
+	hose->sparse_mem_base = 0;
+	hose->sparse_io_base = 0;
+	hose->dense_mem_base
+	  = (TITAN_MEM(index) & 0xffffffffffUL) | 0x80000000000UL;
+	hose->dense_io_base
+	  = (TITAN_IO(index) & 0xffffffffffUL) | 0x80000000000UL;
+
+	hose->config_space_base = TITAN_CONF(index);
+	hose->index = index;
+
+	hose->io_space->start = TITAN_IO(index) - TITAN_IO_BIAS;
+	hose->io_space->end = hose->io_space->start + TITAN_IO_SPACE - 1;
+	hose->io_space->name = pci_io_names[index];
+	hose->io_space->flags = IORESOURCE_IO;
+
+	hose->mem_space->start = TITAN_MEM(index) - TITAN_MEM_BIAS;
+	hose->mem_space->end = hose->mem_space->start + 0xffffffff;
+	hose->mem_space->name = pci_mem_names[index];
+	hose->mem_space->flags = IORESOURCE_MEM;
+
+	if (request_resource(&ioport_resource, hose->io_space) < 0)
+		printk(KERN_ERR "Failed to request IO on hose %d\n", index);
+	if (request_resource(&iomem_resource, hose->mem_space) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose %d\n", index);
+
+	/*
+	 * Save the existing PCI window translations.  SRM will 
+	 * need them when we go to reboot.
+	 */
+	saved_config[index].wsba[0] = port->wsba[0].csr;
+	saved_config[index].wsm[0]  = port->wsm[0].csr;
+	saved_config[index].tba[0]  = port->tba[0].csr;
+
+	saved_config[index].wsba[1] = port->wsba[1].csr;
+	saved_config[index].wsm[1]  = port->wsm[1].csr;
+	saved_config[index].tba[1]  = port->tba[1].csr;
+
+	saved_config[index].wsba[2] = port->wsba[2].csr;
+	saved_config[index].wsm[2]  = port->wsm[2].csr;
+	saved_config[index].tba[2]  = port->tba[2].csr;
+
+	saved_config[index].wsba[3] = port->wsba[3].csr;
+	saved_config[index].wsm[3]  = port->wsm[3].csr;
+	saved_config[index].tba[3]  = port->tba[3].csr;
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Note: Window 3 on Titan is Scatter-Gather ONLY.
+	 *
+	 * Window 0 is scatter-gather 8MB at 8MB (for isa)
+	 * Window 1 is direct access 1GB at 2GB
+	 * Window 2 is scatter-gather 1GB at 3GB
+	 */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_isa->align_entry = 8; /* 64KB for ISA */
+
+	hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci->align_entry = 4; /* Titan caches 4 PTEs at a time */
+
+	port->wsba[0].csr = hose->sg_isa->dma_base | 3;
+	port->wsm[0].csr  = (hose->sg_isa->size - 1) & 0xfff00000;
+	port->tba[0].csr  = virt_to_phys(hose->sg_isa->ptes);
+
+	port->wsba[1].csr = __direct_map_base | 1;
+	port->wsm[1].csr  = (__direct_map_size - 1) & 0xfff00000;
+	port->tba[1].csr  = 0;
+
+	port->wsba[2].csr = hose->sg_pci->dma_base | 3;
+	port->wsm[2].csr  = (hose->sg_pci->size - 1) & 0xfff00000;
+	port->tba[2].csr  = virt_to_phys(hose->sg_pci->ptes);
+
+	port->wsba[3].csr = 0;
+
+	/* Enable the Monster Window to make DAC pci64 possible.  */
+	port->pctl.csr |= pctl_m_mwin;
+
+	/*
+	 * If it's an AGP port, initialize agplastwr.
+	 */
+	if (titan_query_agp(port)) 
+		port->port_specific.a.agplastwr.csr = __direct_map_base;
+
+	titan_pci_tbi(hose, 0, -1);
+}
+
+static void __init
+titan_init_pachips(titan_pachip *pachip0, titan_pachip *pachip1)
+{
+	titan_pchip1_present = TITAN_cchip->csc.csr & 1L<<14;
+
+	/* Init the ports in hose order... */
+	titan_init_one_pachip_port(&pachip0->g_port, 0);	/* hose 0 */
+	if (titan_pchip1_present)
+		titan_init_one_pachip_port(&pachip1->g_port, 1);/* hose 1 */
+	titan_init_one_pachip_port(&pachip0->a_port, 2);	/* hose 2 */
+	if (titan_pchip1_present)
+		titan_init_one_pachip_port(&pachip1->a_port, 3);/* hose 3 */
+}
+
+void __init
+titan_init_arch(void)
+{
+#if 0
+	printk("%s: titan_init_arch()\n", __func__);
+	printk("%s: CChip registers:\n", __func__);
+	printk("%s: CSR_CSC 0x%lx\n", __func__, TITAN_cchip->csc.csr);
+	printk("%s: CSR_MTR 0x%lx\n", __func__, TITAN_cchip->mtr.csr);
+	printk("%s: CSR_MISC 0x%lx\n", __func__, TITAN_cchip->misc.csr);
+	printk("%s: CSR_DIM0 0x%lx\n", __func__, TITAN_cchip->dim0.csr);
+	printk("%s: CSR_DIM1 0x%lx\n", __func__, TITAN_cchip->dim1.csr);
+	printk("%s: CSR_DIR0 0x%lx\n", __func__, TITAN_cchip->dir0.csr);
+	printk("%s: CSR_DIR1 0x%lx\n", __func__, TITAN_cchip->dir1.csr);
+	printk("%s: CSR_DRIR 0x%lx\n", __func__, TITAN_cchip->drir.csr);
+
+	printk("%s: DChip registers:\n", __func__);
+	printk("%s: CSR_DSC 0x%lx\n", __func__, TITAN_dchip->dsc.csr);
+	printk("%s: CSR_STR 0x%lx\n", __func__, TITAN_dchip->str.csr);
+	printk("%s: CSR_DREV 0x%lx\n", __func__, TITAN_dchip->drev.csr);
+#endif
+
+	boot_cpuid = __hard_smp_processor_id();
+
+	/* With multiple PCI busses, we play with I/O as physical addrs.  */
+	ioport_resource.end = ~0UL;
+	iomem_resource.end = ~0UL;
+
+	/* PCI DMA Direct Mapping is 1GB at 2GB.  */
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x40000000;
+
+	/* Init the PA chip(s).  */
+	titan_init_pachips(TITAN_pachip0, TITAN_pachip1);
+
+	/* Check for graphic console location (if any).  */
+	find_console_vga_hose();
+}
+
+static void
+titan_kill_one_pachip_port(titan_pachip_port *port, int index)
+{
+	port->wsba[0].csr = saved_config[index].wsba[0];
+	port->wsm[0].csr  = saved_config[index].wsm[0];
+	port->tba[0].csr  = saved_config[index].tba[0];
+
+	port->wsba[1].csr = saved_config[index].wsba[1];
+	port->wsm[1].csr  = saved_config[index].wsm[1];
+	port->tba[1].csr  = saved_config[index].tba[1];
+
+	port->wsba[2].csr = saved_config[index].wsba[2];
+	port->wsm[2].csr  = saved_config[index].wsm[2];
+	port->tba[2].csr  = saved_config[index].tba[2];
+
+	port->wsba[3].csr = saved_config[index].wsba[3];
+	port->wsm[3].csr  = saved_config[index].wsm[3];
+	port->tba[3].csr  = saved_config[index].tba[3];
+}
+
+static void
+titan_kill_pachips(titan_pachip *pachip0, titan_pachip *pachip1)
+{
+	if (titan_pchip1_present) {
+		titan_kill_one_pachip_port(&pachip1->g_port, 1);
+		titan_kill_one_pachip_port(&pachip1->a_port, 3);
+	}
+	titan_kill_one_pachip_port(&pachip0->g_port, 0);
+	titan_kill_one_pachip_port(&pachip0->a_port, 2);
+}
+
+void
+titan_kill_arch(int mode)
+{
+	titan_kill_pachips(TITAN_pachip0, TITAN_pachip1);
+}
+
+
+/*
+ * IO map support.
+ */
+
+void __iomem *
+titan_ioportmap(unsigned long addr)
+{
+	FIXUP_IOADDR_VGA(addr);
+	return (void __iomem *)(addr + TITAN_IO_BIAS);
+}
+
+
+void __iomem *
+titan_ioremap(unsigned long addr, unsigned long size)
+{
+	int h = (addr & TITAN_HOSE_MASK) >> TITAN_HOSE_SHIFT;
+	unsigned long baddr = addr & ~TITAN_HOSE_MASK;
+	unsigned long last = baddr + size - 1;
+	struct pci_controller *hose;	
+	struct vm_struct *area;
+	unsigned long vaddr;
+	unsigned long *ptes;
+	unsigned long pfn;
+
+#ifdef CONFIG_VGA_HOSE
+	/*
+	 * Adjust the address and hose, if necessary.
+	 */ 
+	if (pci_vga_hose && __is_mem_vga(addr)) {
+		h = pci_vga_hose->index;
+		addr += pci_vga_hose->mem_space->start;
+	}
+#endif
+
+	/*
+	 * Find the hose.
+	 */
+	for (hose = hose_head; hose; hose = hose->next)
+		if (hose->index == h)
+			break;
+	if (!hose)
+		return NULL;
+
+	/*
+	 * Is it direct-mapped?
+	 */
+	if ((baddr >= __direct_map_base) && 
+	    ((baddr + size - 1) < __direct_map_base + __direct_map_size)) {
+		vaddr = addr - __direct_map_base + TITAN_MEM_BIAS;
+		return (void __iomem *) vaddr;
+	}
+
+	/* 
+	 * Check the scatter-gather arena.
+	 */
+	if (hose->sg_pci &&
+	    baddr >= (unsigned long)hose->sg_pci->dma_base &&
+	    last < (unsigned long)hose->sg_pci->dma_base + hose->sg_pci->size){
+
+		/*
+		 * Adjust the limits (mappings must be page aligned)
+		 */
+		baddr -= hose->sg_pci->dma_base;
+		last -= hose->sg_pci->dma_base;
+		baddr &= PAGE_MASK;
+		size = PAGE_ALIGN(last) - baddr;
+
+		/*
+		 * Map it
+		 */
+		area = get_vm_area(size, VM_IOREMAP);
+		if (!area) {
+			printk("ioremap failed... no vm_area...\n");
+			return NULL;
+		}
+
+		ptes = hose->sg_pci->ptes;
+		for (vaddr = (unsigned long)area->addr; 
+		    baddr <= last; 
+		    baddr += PAGE_SIZE, vaddr += PAGE_SIZE) {
+			pfn = ptes[baddr >> PAGE_SHIFT];
+			if (!(pfn & 1)) {
+				printk("ioremap failed... pte not valid...\n");
+				vfree(area->addr);
+				return NULL;
+			}
+			pfn >>= 1;	/* make it a true pfn */
+			
+			if (__alpha_remap_area_pages(vaddr,
+						     pfn << PAGE_SHIFT, 
+						     PAGE_SIZE, 0)) {
+				printk("FAILED to remap_area_pages...\n");
+				vfree(area->addr);
+				return NULL;
+			}
+		}
+
+		flush_tlb_all();
+
+		vaddr = (unsigned long)area->addr + (addr & ~PAGE_MASK);
+		return (void __iomem *) vaddr;
+	}
+
+	/* Assume a legacy (read: VGA) address, and return appropriately. */
+	return (void __iomem *)(addr + TITAN_MEM_BIAS);
+}
+
+void
+titan_iounmap(volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr >= VMALLOC_START)
+		vfree((void *)(PAGE_MASK & addr)); 
+}
+
+int
+titan_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+
+	if (addr >= VMALLOC_START)
+		return 1;
+	else
+		return (addr & 0x100000000UL) == 0;
+}
+
+#ifndef CONFIG_ALPHA_GENERIC
+EXPORT_SYMBOL(titan_ioportmap);
+EXPORT_SYMBOL(titan_ioremap);
+EXPORT_SYMBOL(titan_iounmap);
+EXPORT_SYMBOL(titan_is_mmio);
+#endif
+
+/*
+ * AGP GART Support.
+ */
+#include <linux/agp_backend.h>
+#include <asm/agp_backend.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+struct titan_agp_aperture {
+	struct pci_iommu_arena *arena;
+	long pg_start;
+	long pg_count;
+};
+
+static int
+titan_agp_setup(alpha_agp_info *agp)
+{
+	struct titan_agp_aperture *aper;
+
+	if (!alpha_agpgart_size)
+		return -ENOMEM;
+
+	aper = kmalloc(sizeof(struct titan_agp_aperture), GFP_KERNEL);
+	if (aper == NULL)
+		return -ENOMEM;
+
+	aper->arena = agp->hose->sg_pci;
+	aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
+	aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
+				       aper->pg_count - 1);
+	if (aper->pg_start < 0) {
+		printk(KERN_ERR "Failed to reserve AGP memory\n");
+		kfree(aper);
+		return -ENOMEM;
+	}
+
+	agp->aperture.bus_base = 
+		aper->arena->dma_base + aper->pg_start * PAGE_SIZE;
+	agp->aperture.size = aper->pg_count * PAGE_SIZE;
+	agp->aperture.sysdata = aper;
+
+	return 0;
+}
+
+static void
+titan_agp_cleanup(alpha_agp_info *agp)
+{
+	struct titan_agp_aperture *aper = agp->aperture.sysdata;
+	int status;
+
+	status = iommu_release(aper->arena, aper->pg_start, aper->pg_count);
+	if (status == -EBUSY) {
+		printk(KERN_WARNING 
+		       "Attempted to release bound AGP memory - unbinding\n");
+		iommu_unbind(aper->arena, aper->pg_start, aper->pg_count);
+		status = iommu_release(aper->arena, aper->pg_start, 
+				       aper->pg_count);
+	}
+	if (status < 0)
+		printk(KERN_ERR "Failed to release AGP memory\n");
+
+	kfree(aper);
+	kfree(agp);
+}
+
+static int
+titan_agp_configure(alpha_agp_info *agp)
+{
+	union TPAchipPCTL pctl;
+	titan_pachip_port *port = agp->private;
+	pctl.pctl_q_whole = port->pctl.csr;
+
+	/* Side-Band Addressing? */
+	pctl.pctl_r_bits.apctl_v_agp_sba_en = agp->mode.bits.sba;
+
+	/* AGP Rate? */
+	pctl.pctl_r_bits.apctl_v_agp_rate = 0;		/* 1x */
+	if (agp->mode.bits.rate & 2) 
+		pctl.pctl_r_bits.apctl_v_agp_rate = 1;	/* 2x */
+#if 0
+	if (agp->mode.bits.rate & 4) 
+		pctl.pctl_r_bits.apctl_v_agp_rate = 2;	/* 4x */
+#endif
+	
+	/* RQ Depth? */
+	pctl.pctl_r_bits.apctl_v_agp_hp_rd = 2;
+	pctl.pctl_r_bits.apctl_v_agp_lp_rd = 7;
+
+	/*
+	 * AGP Enable.
+	 */
+	pctl.pctl_r_bits.apctl_v_agp_en = agp->mode.bits.enable;
+
+	/* Tell the user.  */
+	printk("Enabling AGP: %dX%s\n", 
+	       1 << pctl.pctl_r_bits.apctl_v_agp_rate,
+	       pctl.pctl_r_bits.apctl_v_agp_sba_en ? " - SBA" : "");
+	       
+	/* Write it.  */
+	port->pctl.csr = pctl.pctl_q_whole;
+	
+	/* And wait at least 5000 66MHz cycles (per Titan spec).  */
+	udelay(100);
+
+	return 0;
+}
+
+static int 
+titan_agp_bind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *mem)
+{
+	struct titan_agp_aperture *aper = agp->aperture.sysdata;
+	return iommu_bind(aper->arena, aper->pg_start + pg_start, 
+			  mem->page_count, mem->pages);
+}
+
+static int 
+titan_agp_unbind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *mem)
+{
+	struct titan_agp_aperture *aper = agp->aperture.sysdata;
+	return iommu_unbind(aper->arena, aper->pg_start + pg_start,
+			    mem->page_count);
+}
+
+static unsigned long
+titan_agp_translate(alpha_agp_info *agp, dma_addr_t addr)
+{
+	struct titan_agp_aperture *aper = agp->aperture.sysdata;
+	unsigned long baddr = addr - aper->arena->dma_base;
+	unsigned long pte;
+
+	if (addr < agp->aperture.bus_base ||
+	    addr >= agp->aperture.bus_base + agp->aperture.size) {
+		printk("%s: addr out of range\n", __func__);
+		return -EINVAL;
+	}
+
+	pte = aper->arena->ptes[baddr >> PAGE_SHIFT];
+	if (!(pte & 1)) {
+		printk("%s: pte not valid\n", __func__);
+		return -EINVAL;
+	}
+
+	return (pte >> 1) << PAGE_SHIFT;
+}
+
+struct alpha_agp_ops titan_agp_ops =
+{
+	.setup		= titan_agp_setup,
+	.cleanup	= titan_agp_cleanup,
+	.configure	= titan_agp_configure,
+	.bind		= titan_agp_bind_memory,
+	.unbind		= titan_agp_unbind_memory,
+	.translate	= titan_agp_translate
+};
+
+alpha_agp_info *
+titan_agp_info(void)
+{
+	alpha_agp_info *agp;
+	struct pci_controller *hose;
+	titan_pachip_port *port;
+	int hosenum = -1;
+	union TPAchipPCTL pctl;
+
+	/*
+	 * Find the AGP port.
+	 */
+	port = &TITAN_pachip0->a_port;
+	if (titan_query_agp(port))
+		hosenum = 2;
+	if (hosenum < 0 && 
+	    titan_pchip1_present &&
+	    titan_query_agp(port = &TITAN_pachip1->a_port)) 
+		hosenum = 3;
+	
+	/*
+	 * Find the hose the port is on.
+	 */
+	for (hose = hose_head; hose; hose = hose->next)
+		if (hose->index == hosenum)
+			break;
+
+	if (!hose || !hose->sg_pci)
+		return NULL;
+
+	/*
+	 * Allocate the info structure.
+	 */
+	agp = kmalloc(sizeof(*agp), GFP_KERNEL);
+	if (!agp)
+		return NULL;
+
+	/*
+	 * Fill it in.
+	 */
+	agp->hose = hose;
+	agp->private = port;
+	agp->ops = &titan_agp_ops;
+
+	/*
+	 * Aperture - not configured until ops.setup().
+	 *
+	 * FIXME - should we go ahead and allocate it here?
+	 */
+	agp->aperture.bus_base = 0;
+	agp->aperture.size = 0;
+	agp->aperture.sysdata = NULL;
+
+	/*
+	 * Capabilities.
+	 */
+	agp->capability.lw = 0;
+	agp->capability.bits.rate = 3; 	/* 2x, 1x */
+	agp->capability.bits.sba = 1;
+	agp->capability.bits.rq = 7;	/* 8 - 1 */
+
+	/*
+	 * Mode.
+	 */
+	pctl.pctl_q_whole = port->pctl.csr;
+	agp->mode.lw = 0;
+	agp->mode.bits.rate = 1 << pctl.pctl_r_bits.apctl_v_agp_rate;
+	agp->mode.bits.sba = pctl.pctl_r_bits.apctl_v_agp_sba_en;
+	agp->mode.bits.rq = 7;	/* RQ Depth? */
+	agp->mode.bits.enable = pctl.pctl_r_bits.apctl_v_agp_en;
+
+	return agp;
+}
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
new file mode 100644
index 000000000..fc1ab73f2
--- /dev/null
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -0,0 +1,484 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/core_tsunami.c
+ *
+ * Based on code written by David A. Rusling (david.rusling@reo.mts.dec.com).
+ *
+ * Code common to all TSUNAMI core logic chips.
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_tsunami.h>
+#undef __EXTERN_INLINE
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/memblock.h>
+
+#include <asm/ptrace.h>
+#include <asm/smp.h>
+#include <asm/vga.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/* Save Tsunami configuration data as the console had it set up.  */
+
+struct 
+{
+	unsigned long wsba[4];
+	unsigned long wsm[4];
+	unsigned long tba[4];
+} saved_config[2] __attribute__((common));
+
+/*
+ * NOTE: Herein lie back-to-back mb instructions.  They are magic. 
+ * One plausible explanation is that the I/O controller does not properly
+ * handle the system transaction.  Another involves timing.  Ho hum.
+ */
+
+/*
+ * BIOS32-style PCI interface:
+ */
+
+#define DEBUG_CONFIG 0
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+
+/*
+ * Given a bus, device, and function number, compute resulting
+ * configuration space address
+ * accordingly.  It is therefore not safe to have concurrent
+ * invocations to configuration space access routines, but there
+ * really shouldn't be any need for this.
+ *
+ * Note that all config space accesses use Type 1 address format.
+ *
+ * Note also that type 1 is determined by non-zero bus number.
+ *
+ * Type 1:
+ *
+ *  3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 
+ *  3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	31:24	reserved
+ *	23:16	bus number (8 bits = 128 possible buses)
+ *	15:11	Device number (5 bits)
+ *	10:8	function number
+ *	 7:2	register number
+ *  
+ * Notes:
+ *	The function number selects which function of a multi-function device 
+ *	(e.g., SCSI and Ethernet).
+ * 
+ *	The register selects a DWORD (32 bit) register offset.  Hence it
+ *	doesn't get shifted by 2 bits as we want to "drop" the bottom two
+ *	bits.
+ */
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	struct pci_controller *hose = pbus->sysdata;
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBG_CFG(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x, "
+		 "pci_addr=0x%p, type1=0x%p)\n",
+		 bus, device_fn, where, pci_addr, type1));
+	
+	if (!pbus->parent) /* No parent means peer PCI bus. */
+		bus = 0;
+	*type1 = (bus != 0);
+
+	addr = (bus << 16) | (device_fn << 8) | where;
+	addr |= hose->config_space_base;
+		
+	*pci_addr = addr;
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static int 
+tsunami_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 *value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*value = *(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+tsunami_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops tsunami_pci_ops = 
+{
+	.read =		tsunami_read_config,
+	.write = 	tsunami_write_config,
+};
+
+void
+tsunami_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	tsunami_pchip *pchip = hose->index ? TSUNAMI_pchip1 : TSUNAMI_pchip0;
+	volatile unsigned long *csr;
+	unsigned long value;
+
+	/* We can invalidate up to 8 tlb entries in a go.  The flush
+	   matches against <31:16> in the pci address.  */
+	csr = &pchip->tlbia.csr;
+	if (((start ^ end) & 0xffff0000) == 0)
+		csr = &pchip->tlbiv.csr;
+
+	/* For TBIA, it doesn't matter what value we write.  For TBI, 
+	   it's the shifted tag bits.  */
+	value = (start & 0xffff0000) >> 12;
+
+	*csr = value;
+	mb();
+	*csr;
+}
+
+#ifdef NXM_MACHINE_CHECKS_ON_TSUNAMI
+static long __init
+tsunami_probe_read(volatile unsigned long *vaddr)
+{
+	long dont_care, probe_result;
+	int cpu = smp_processor_id();
+	int s = swpipl(IPL_MCHECK - 1);
+
+	mcheck_taken(cpu) = 0;
+	mcheck_expected(cpu) = 1;
+	mb();
+	dont_care = *vaddr;
+	draina();
+	mcheck_expected(cpu) = 0;
+	probe_result = !mcheck_taken(cpu);
+	mcheck_taken(cpu) = 0;
+	setipl(s);
+
+	printk("dont_care == 0x%lx\n", dont_care);
+
+	return probe_result;
+}
+
+static long __init
+tsunami_probe_write(volatile unsigned long *vaddr)
+{
+	long true_contents, probe_result = 1;
+
+	TSUNAMI_cchip->misc.csr |= (1L << 28); /* clear NXM... */
+	true_contents = *vaddr;
+	*vaddr = 0;
+	draina();
+	if (TSUNAMI_cchip->misc.csr & (1L << 28)) {
+		int source = (TSUNAMI_cchip->misc.csr >> 29) & 7;
+		TSUNAMI_cchip->misc.csr |= (1L << 28); /* ...and unlock NXS. */
+		probe_result = 0;
+		printk("tsunami_probe_write: unit %d at 0x%016lx\n", source,
+		       (unsigned long)vaddr);
+	}
+	if (probe_result)
+		*vaddr = true_contents;
+	return probe_result;
+}
+#else
+#define tsunami_probe_read(ADDR) 1
+#endif /* NXM_MACHINE_CHECKS_ON_TSUNAMI */
+
+static void __init
+tsunami_init_one_pchip(tsunami_pchip *pchip, int index)
+{
+	struct pci_controller *hose;
+
+	if (tsunami_probe_read(&pchip->pctl.csr) == 0)
+		return;
+
+	hose = alloc_pci_controller();
+	if (index == 0)
+		pci_isa_hose = hose;
+	hose->io_space = alloc_resource();
+	hose->mem_space = alloc_resource();
+
+	/* This is for userland consumption.  For some reason, the 40-bit
+	   PIO bias that we use in the kernel through KSEG didn't work for
+	   the page table based user mappings.  So make sure we get the
+	   43-bit PIO bias.  */
+	hose->sparse_mem_base = 0;
+	hose->sparse_io_base = 0;
+	hose->dense_mem_base
+	  = (TSUNAMI_MEM(index) & 0xffffffffffL) | 0x80000000000L;
+	hose->dense_io_base
+	  = (TSUNAMI_IO(index) & 0xffffffffffL) | 0x80000000000L;
+
+	hose->config_space_base = TSUNAMI_CONF(index);
+	hose->index = index;
+
+	hose->io_space->start = TSUNAMI_IO(index) - TSUNAMI_IO_BIAS;
+	hose->io_space->end = hose->io_space->start + TSUNAMI_IO_SPACE - 1;
+	hose->io_space->name = pci_io_names[index];
+	hose->io_space->flags = IORESOURCE_IO;
+
+	hose->mem_space->start = TSUNAMI_MEM(index) - TSUNAMI_MEM_BIAS;
+	hose->mem_space->end = hose->mem_space->start + 0xffffffff;
+	hose->mem_space->name = pci_mem_names[index];
+	hose->mem_space->flags = IORESOURCE_MEM;
+
+	if (request_resource(&ioport_resource, hose->io_space) < 0)
+		printk(KERN_ERR "Failed to request IO on hose %d\n", index);
+	if (request_resource(&iomem_resource, hose->mem_space) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose %d\n", index);
+
+	/*
+	 * Save the existing PCI window translations.  SRM will 
+	 * need them when we go to reboot.
+	 */
+
+	saved_config[index].wsba[0] = pchip->wsba[0].csr;
+	saved_config[index].wsm[0] = pchip->wsm[0].csr;
+	saved_config[index].tba[0] = pchip->tba[0].csr;
+
+	saved_config[index].wsba[1] = pchip->wsba[1].csr;
+	saved_config[index].wsm[1] = pchip->wsm[1].csr;
+	saved_config[index].tba[1] = pchip->tba[1].csr;
+
+	saved_config[index].wsba[2] = pchip->wsba[2].csr;
+	saved_config[index].wsm[2] = pchip->wsm[2].csr;
+	saved_config[index].tba[2] = pchip->tba[2].csr;
+
+	saved_config[index].wsba[3] = pchip->wsba[3].csr;
+	saved_config[index].wsm[3] = pchip->wsm[3].csr;
+	saved_config[index].tba[3] = pchip->tba[3].csr;
+
+	/*
+	 * Set up the PCI to main memory translation windows.
+	 *
+	 * Note: Window 3 is scatter-gather only
+	 * 
+	 * Window 0 is scatter-gather 8MB at 8MB (for isa)
+	 * Window 1 is scatter-gather (up to) 1GB at 1GB
+	 * Window 2 is direct access 2GB at 2GB
+	 *
+	 * NOTE: we need the align_entry settings for Acer devices on ES40,
+	 * specifically floppy and IDE when memory is larger than 2GB.
+	 */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	/* Initially set for 4 PTEs, but will be overridden to 64K for ISA. */
+        hose->sg_isa->align_entry = 4;
+
+	hose->sg_pci = iommu_arena_new(hose, 0x40000000,
+				       size_for_memory(0x40000000),
+				       SMP_CACHE_BYTES);
+        hose->sg_pci->align_entry = 4; /* Tsunami caches 4 PTEs at a time */
+
+	__direct_map_base = 0x80000000;
+	__direct_map_size = 0x80000000;
+
+	pchip->wsba[0].csr = hose->sg_isa->dma_base | 3;
+	pchip->wsm[0].csr  = (hose->sg_isa->size - 1) & 0xfff00000;
+	pchip->tba[0].csr  = virt_to_phys(hose->sg_isa->ptes);
+
+	pchip->wsba[1].csr = hose->sg_pci->dma_base | 3;
+	pchip->wsm[1].csr  = (hose->sg_pci->size - 1) & 0xfff00000;
+	pchip->tba[1].csr  = virt_to_phys(hose->sg_pci->ptes);
+
+	pchip->wsba[2].csr = 0x80000000 | 1;
+	pchip->wsm[2].csr  = (0x80000000 - 1) & 0xfff00000;
+	pchip->tba[2].csr  = 0;
+
+	pchip->wsba[3].csr = 0;
+
+	/* Enable the Monster Window to make DAC pci64 possible. */
+	pchip->pctl.csr |= pctl_m_mwin;
+
+	tsunami_pci_tbi(hose, 0, -1);
+}
+
+
+void __iomem *
+tsunami_ioportmap(unsigned long addr)
+{
+	FIXUP_IOADDR_VGA(addr);
+	return (void __iomem *)(addr + TSUNAMI_IO_BIAS);
+}
+
+void __iomem *
+tsunami_ioremap(unsigned long addr, unsigned long size)
+{
+	FIXUP_MEMADDR_VGA(addr);
+	return (void __iomem *)(addr + TSUNAMI_MEM_BIAS);
+}
+
+#ifndef CONFIG_ALPHA_GENERIC
+EXPORT_SYMBOL(tsunami_ioportmap);
+EXPORT_SYMBOL(tsunami_ioremap);
+#endif
+
+void __init
+tsunami_init_arch(void)
+{
+#ifdef NXM_MACHINE_CHECKS_ON_TSUNAMI
+	unsigned long tmp;
+	
+	/* Ho hum.. init_arch is called before init_IRQ, but we need to be
+	   able to handle machine checks.  So install the handler now.  */
+	wrent(entInt, 0);
+
+	/* NXMs just don't matter to Tsunami--unless they make it
+	   choke completely. */
+	tmp = (unsigned long)(TSUNAMI_cchip - 1);
+	printk("%s: probing bogus address:  0x%016lx\n", __func__, bogus_addr);
+	printk("\tprobe %s\n",
+	       tsunami_probe_write((unsigned long *)bogus_addr)
+	       ? "succeeded" : "failed");
+#endif /* NXM_MACHINE_CHECKS_ON_TSUNAMI */
+
+#if 0
+	printk("%s: CChip registers:\n", __func__);
+	printk("%s: CSR_CSC 0x%lx\n", __func__, TSUNAMI_cchip->csc.csr);
+	printk("%s: CSR_MTR 0x%lx\n", __func__, TSUNAMI_cchip.mtr.csr);
+	printk("%s: CSR_MISC 0x%lx\n", __func__, TSUNAMI_cchip->misc.csr);
+	printk("%s: CSR_DIM0 0x%lx\n", __func__, TSUNAMI_cchip->dim0.csr);
+	printk("%s: CSR_DIM1 0x%lx\n", __func__, TSUNAMI_cchip->dim1.csr);
+	printk("%s: CSR_DIR0 0x%lx\n", __func__, TSUNAMI_cchip->dir0.csr);
+	printk("%s: CSR_DIR1 0x%lx\n", __func__, TSUNAMI_cchip->dir1.csr);
+	printk("%s: CSR_DRIR 0x%lx\n", __func__, TSUNAMI_cchip->drir.csr);
+
+	printk("%s: DChip registers:\n");
+	printk("%s: CSR_DSC 0x%lx\n", __func__, TSUNAMI_dchip->dsc.csr);
+	printk("%s: CSR_STR 0x%lx\n", __func__, TSUNAMI_dchip->str.csr);
+	printk("%s: CSR_DREV 0x%lx\n", __func__, TSUNAMI_dchip->drev.csr);
+#endif
+	/* With multiple PCI busses, we play with I/O as physical addrs.  */
+	ioport_resource.end = ~0UL;
+
+	/* Find how many hoses we have, and initialize them.  TSUNAMI
+	   and TYPHOON can have 2, but might only have 1 (DS10).  */
+
+	tsunami_init_one_pchip(TSUNAMI_pchip0, 0);
+	if (TSUNAMI_cchip->csc.csr & 1L<<14)
+		tsunami_init_one_pchip(TSUNAMI_pchip1, 1);
+
+	/* Check for graphic console location (if any).  */
+	find_console_vga_hose();
+}
+
+static void
+tsunami_kill_one_pchip(tsunami_pchip *pchip, int index)
+{
+	pchip->wsba[0].csr = saved_config[index].wsba[0];
+	pchip->wsm[0].csr = saved_config[index].wsm[0];
+	pchip->tba[0].csr = saved_config[index].tba[0];
+
+	pchip->wsba[1].csr = saved_config[index].wsba[1];
+	pchip->wsm[1].csr = saved_config[index].wsm[1];
+	pchip->tba[1].csr = saved_config[index].tba[1];
+
+	pchip->wsba[2].csr = saved_config[index].wsba[2];
+	pchip->wsm[2].csr = saved_config[index].wsm[2];
+	pchip->tba[2].csr = saved_config[index].tba[2];
+
+	pchip->wsba[3].csr = saved_config[index].wsba[3];
+	pchip->wsm[3].csr = saved_config[index].wsm[3];
+	pchip->tba[3].csr = saved_config[index].tba[3];
+}
+
+void
+tsunami_kill_arch(int mode)
+{
+	tsunami_kill_one_pchip(TSUNAMI_pchip0, 0);
+	if (TSUNAMI_cchip->csc.csr & 1L<<14)
+		tsunami_kill_one_pchip(TSUNAMI_pchip1, 1);
+}
+
+static inline void
+tsunami_pci_clr_err_1(tsunami_pchip *pchip)
+{
+	pchip->perror.csr;
+	pchip->perror.csr = 0x040;
+	mb();
+	pchip->perror.csr;
+}
+
+static inline void
+tsunami_pci_clr_err(void)
+{
+	tsunami_pci_clr_err_1(TSUNAMI_pchip0);
+
+	/* TSUNAMI and TYPHOON can have 2, but might only have 1 (DS10) */
+	if (TSUNAMI_cchip->csc.csr & 1L<<14)
+		tsunami_pci_clr_err_1(TSUNAMI_pchip1);
+}
+
+void
+tsunami_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	/* Clear error before any reporting.  */
+	mb();
+	mb();  /* magic */
+	draina();
+	tsunami_pci_clr_err();
+	wrmces(0x7);
+	mb();
+
+	process_mcheck_info(vector, la_ptr, "TSUNAMI",
+			    mcheck_expected(smp_processor_id()));
+}
diff --git a/arch/alpha/kernel/core_wildfire.c b/arch/alpha/kernel/core_wildfire.c
new file mode 100644
index 000000000..3a804b67f
--- /dev/null
+++ b/arch/alpha/kernel/core_wildfire.c
@@ -0,0 +1,633 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/core_wildfire.c
+ *
+ *  Wildfire support.
+ *
+ *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
+ */
+
+#define __EXTERN_INLINE inline
+#include <asm/io.h>
+#include <asm/core_wildfire.h>
+#undef __EXTERN_INLINE
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/smp.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+#define DEBUG_CONFIG 0
+#define DEBUG_DUMP_REGS 0
+#define DEBUG_DUMP_CONFIG 1
+
+#if DEBUG_CONFIG
+# define DBG_CFG(args)	printk args
+#else
+# define DBG_CFG(args)
+#endif
+
+#if DEBUG_DUMP_REGS
+static void wildfire_dump_pci_regs(int qbbno, int hoseno);
+static void wildfire_dump_pca_regs(int qbbno, int pcano);
+static void wildfire_dump_qsa_regs(int qbbno);
+static void wildfire_dump_qsd_regs(int qbbno);
+static void wildfire_dump_iop_regs(int qbbno);
+static void wildfire_dump_gp_regs(int qbbno);
+#endif
+#if DEBUG_DUMP_CONFIG
+static void wildfire_dump_hardware_config(void);
+#endif
+
+unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
+unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
+#define QBB_MAP_EMPTY	0xff
+
+unsigned long wildfire_hard_qbb_mask;
+unsigned long wildfire_soft_qbb_mask;
+unsigned long wildfire_gp_mask;
+unsigned long wildfire_hs_mask;
+unsigned long wildfire_iop_mask;
+unsigned long wildfire_ior_mask;
+unsigned long wildfire_pca_mask;
+unsigned long wildfire_cpu_mask;
+unsigned long wildfire_mem_mask;
+
+void __init
+wildfire_init_hose(int qbbno, int hoseno)
+{
+	struct pci_controller *hose;
+	wildfire_pci *pci;
+
+	hose = alloc_pci_controller();
+	hose->io_space = alloc_resource();
+	hose->mem_space = alloc_resource();
+
+        /* This is for userland consumption. */
+        hose->sparse_mem_base = 0;
+        hose->sparse_io_base  = 0;
+        hose->dense_mem_base  = WILDFIRE_MEM(qbbno, hoseno);
+        hose->dense_io_base   = WILDFIRE_IO(qbbno, hoseno);
+
+	hose->config_space_base = WILDFIRE_CONF(qbbno, hoseno);
+	hose->index = (qbbno << 3) + hoseno;
+
+	hose->io_space->start = WILDFIRE_IO(qbbno, hoseno) - WILDFIRE_IO_BIAS;
+	hose->io_space->end = hose->io_space->start + WILDFIRE_IO_SPACE - 1;
+	hose->io_space->name = pci_io_names[hoseno];
+	hose->io_space->flags = IORESOURCE_IO;
+
+	hose->mem_space->start = WILDFIRE_MEM(qbbno, hoseno)-WILDFIRE_MEM_BIAS;
+	hose->mem_space->end = hose->mem_space->start + 0xffffffff;
+	hose->mem_space->name = pci_mem_names[hoseno];
+	hose->mem_space->flags = IORESOURCE_MEM;
+
+	if (request_resource(&ioport_resource, hose->io_space) < 0)
+		printk(KERN_ERR "Failed to request IO on qbb %d hose %d\n",
+		       qbbno, hoseno);
+	if (request_resource(&iomem_resource, hose->mem_space) < 0)
+		printk(KERN_ERR "Failed to request MEM on qbb %d hose %d\n",
+		       qbbno, hoseno);
+
+#if DEBUG_DUMP_REGS
+	wildfire_dump_pci_regs(qbbno, hoseno);
+#endif
+
+        /*
+         * Set up the PCI to main memory translation windows.
+         *
+         * Note: Window 3 is scatter-gather only
+         * 
+         * Window 0 is scatter-gather 8MB at 8MB (for isa)
+	 * Window 1 is direct access 1GB at 1GB
+	 * Window 2 is direct access 1GB at 2GB
+         * Window 3 is scatter-gather 128MB at 3GB
+         * ??? We ought to scale window 3 memory.
+         *
+         */
+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+				       SMP_CACHE_BYTES);
+	hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000,
+				       SMP_CACHE_BYTES);
+
+	pci = WILDFIRE_pci(qbbno, hoseno);
+
+	pci->pci_window[0].wbase.csr = hose->sg_isa->dma_base | 3;
+	pci->pci_window[0].wmask.csr = (hose->sg_isa->size - 1) & 0xfff00000;
+	pci->pci_window[0].tbase.csr = virt_to_phys(hose->sg_isa->ptes);
+
+	pci->pci_window[1].wbase.csr = 0x40000000 | 1;
+	pci->pci_window[1].wmask.csr = (0x40000000 -1) & 0xfff00000;
+	pci->pci_window[1].tbase.csr = 0;
+
+	pci->pci_window[2].wbase.csr = 0x80000000 | 1;
+	pci->pci_window[2].wmask.csr = (0x40000000 -1) & 0xfff00000;
+	pci->pci_window[2].tbase.csr = 0x40000000;
+
+	pci->pci_window[3].wbase.csr = hose->sg_pci->dma_base | 3;
+	pci->pci_window[3].wmask.csr = (hose->sg_pci->size - 1) & 0xfff00000;
+	pci->pci_window[3].tbase.csr = virt_to_phys(hose->sg_pci->ptes);
+
+	wildfire_pci_tbi(hose, 0, 0); /* Flush TLB at the end. */
+}
+
+void __init
+wildfire_init_pca(int qbbno, int pcano)
+{
+
+	/* Test for PCA existence first. */
+	if (!WILDFIRE_PCA_EXISTS(qbbno, pcano))
+	    return;
+
+#if DEBUG_DUMP_REGS
+	wildfire_dump_pca_regs(qbbno, pcano);
+#endif
+
+	/* Do both hoses of the PCA. */
+	wildfire_init_hose(qbbno, (pcano << 1) + 0);
+	wildfire_init_hose(qbbno, (pcano << 1) + 1);
+}
+
+void __init
+wildfire_init_qbb(int qbbno)
+{
+	int pcano;
+
+	/* Test for QBB existence first. */
+	if (!WILDFIRE_QBB_EXISTS(qbbno))
+		return;
+
+#if DEBUG_DUMP_REGS
+	wildfire_dump_qsa_regs(qbbno);
+	wildfire_dump_qsd_regs(qbbno);
+	wildfire_dump_iop_regs(qbbno);
+	wildfire_dump_gp_regs(qbbno);
+#endif
+
+	/* Init all PCAs here. */
+	for (pcano = 0; pcano < WILDFIRE_PCA_PER_QBB; pcano++) {
+		wildfire_init_pca(qbbno, pcano);
+	}
+}
+
+void __init
+wildfire_hardware_probe(void)
+{
+	unsigned long temp;
+	unsigned int hard_qbb, soft_qbb;
+	wildfire_fast_qsd *fast = WILDFIRE_fast_qsd();
+	wildfire_qsd *qsd;
+	wildfire_qsa *qsa;
+	wildfire_iop *iop;
+	wildfire_gp *gp;
+	wildfire_ne *ne;
+	wildfire_fe *fe;
+	int i;
+
+	temp = fast->qsd_whami.csr;
+#if 0
+	printk(KERN_ERR "fast QSD_WHAMI at base %p is 0x%lx\n", fast, temp);
+#endif
+
+	hard_qbb = (temp >> 8) & 7;
+	soft_qbb = (temp >> 4) & 7;
+
+	/* Init the HW configuration variables. */
+	wildfire_hard_qbb_mask = (1 << hard_qbb);
+	wildfire_soft_qbb_mask = (1 << soft_qbb);
+
+	wildfire_gp_mask = 0;
+	wildfire_hs_mask = 0;
+	wildfire_iop_mask = 0;
+	wildfire_ior_mask = 0;
+	wildfire_pca_mask = 0;
+
+	wildfire_cpu_mask = 0;
+	wildfire_mem_mask = 0;
+
+	memset(wildfire_hard_qbb_map, QBB_MAP_EMPTY, WILDFIRE_MAX_QBB);
+	memset(wildfire_soft_qbb_map, QBB_MAP_EMPTY, WILDFIRE_MAX_QBB);
+
+	/* First, determine which QBBs are present. */
+	qsa = WILDFIRE_qsa(soft_qbb);
+
+	temp = qsa->qsa_qbb_id.csr;
+#if 0
+	printk(KERN_ERR "QSA_QBB_ID at base %p is 0x%lx\n", qsa, temp);
+#endif
+
+	if (temp & 0x40) /* Is there an HS? */
+		wildfire_hs_mask = 1;
+
+	if (temp & 0x20) { /* Is there a GP? */
+		gp = WILDFIRE_gp(soft_qbb);
+		temp = 0;
+		for (i = 0; i < 4; i++) {
+			temp |= gp->gpa_qbb_map[i].csr << (i * 8);
+#if 0
+			printk(KERN_ERR "GPA_QBB_MAP[%d] at base %p is 0x%lx\n",
+			       i, gp, temp);
+#endif
+		}
+
+		for (hard_qbb = 0; hard_qbb < WILDFIRE_MAX_QBB; hard_qbb++) {
+			if (temp & 8) { /* Is there a QBB? */
+				soft_qbb = temp & 7;
+				wildfire_hard_qbb_mask |= (1 << hard_qbb);
+				wildfire_soft_qbb_mask |= (1 << soft_qbb);
+			}
+			temp >>= 4;
+		}
+		wildfire_gp_mask = wildfire_soft_qbb_mask;
+        }
+
+	/* Next determine each QBBs resources. */
+	for (soft_qbb = 0; soft_qbb < WILDFIRE_MAX_QBB; soft_qbb++) {
+	    if (WILDFIRE_QBB_EXISTS(soft_qbb)) {
+	        qsd = WILDFIRE_qsd(soft_qbb);
+		temp = qsd->qsd_whami.csr;
+#if 0
+	printk(KERN_ERR "QSD_WHAMI at base %p is 0x%lx\n", qsd, temp);
+#endif
+		hard_qbb = (temp >> 8) & 7;
+		wildfire_hard_qbb_map[hard_qbb] = soft_qbb;
+		wildfire_soft_qbb_map[soft_qbb] = hard_qbb;
+
+		qsa = WILDFIRE_qsa(soft_qbb);
+		temp = qsa->qsa_qbb_pop[0].csr;
+#if 0
+	printk(KERN_ERR "QSA_QBB_POP_0 at base %p is 0x%lx\n", qsa, temp);
+#endif
+		wildfire_cpu_mask |= ((temp >> 0) & 0xf) << (soft_qbb << 2);
+		wildfire_mem_mask |= ((temp >> 4) & 0xf) << (soft_qbb << 2);
+
+		temp = qsa->qsa_qbb_pop[1].csr;
+#if 0
+	printk(KERN_ERR "QSA_QBB_POP_1 at base %p is 0x%lx\n", qsa, temp);
+#endif
+		wildfire_iop_mask |= (1 << soft_qbb);
+		wildfire_ior_mask |= ((temp >> 4) & 0xf) << (soft_qbb << 2);
+
+		temp = qsa->qsa_qbb_id.csr;
+#if 0
+	printk(KERN_ERR "QSA_QBB_ID at %p is 0x%lx\n", qsa, temp);
+#endif
+		if (temp & 0x20)
+		    wildfire_gp_mask |= (1 << soft_qbb);
+
+		/* Probe for PCA existence here. */
+		for (i = 0; i < WILDFIRE_PCA_PER_QBB; i++) {
+		    iop = WILDFIRE_iop(soft_qbb);
+		    ne = WILDFIRE_ne(soft_qbb, i);
+		    fe = WILDFIRE_fe(soft_qbb, i);
+
+		    if ((iop->iop_hose[i].init.csr & 1) == 1 &&
+			((ne->ne_what_am_i.csr & 0xf00000300UL) == 0x100000300UL) &&
+			((fe->fe_what_am_i.csr & 0xf00000300UL) == 0x100000200UL))
+		    {
+		        wildfire_pca_mask |= 1 << ((soft_qbb << 2) + i);
+		    }
+		}
+
+	    }
+	}
+#if DEBUG_DUMP_CONFIG
+	wildfire_dump_hardware_config();
+#endif
+}
+
+void __init
+wildfire_init_arch(void)
+{
+	int qbbno;
+
+	/* With multiple PCI buses, we play with I/O as physical addrs.  */
+	ioport_resource.end = ~0UL;
+
+
+	/* Probe the hardware for info about configuration. */
+	wildfire_hardware_probe();
+
+	/* Now init all the found QBBs. */
+	for (qbbno = 0; qbbno < WILDFIRE_MAX_QBB; qbbno++) {
+		wildfire_init_qbb(qbbno);
+	}
+
+	/* Normal direct PCI DMA mapping. */ 
+	__direct_map_base = 0x40000000UL;
+	__direct_map_size = 0x80000000UL;
+}
+
+void
+wildfire_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	mb();
+	mb();  /* magic */
+	draina();
+	/* FIXME: clear pci errors */
+	wrmces(0x7);
+	mb();
+
+	process_mcheck_info(vector, la_ptr, "WILDFIRE",
+			    mcheck_expected(smp_processor_id()));
+}
+
+void
+wildfire_kill_arch(int mode)
+{
+}
+
+void
+wildfire_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
+{
+	int qbbno = hose->index >> 3;
+	int hoseno = hose->index & 7;
+	wildfire_pci *pci = WILDFIRE_pci(qbbno, hoseno);
+
+	mb();
+	pci->pci_flush_tlb.csr; /* reading does the trick */
+}
+
+static int
+mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where,
+	     unsigned long *pci_addr, unsigned char *type1)
+{
+	struct pci_controller *hose = pbus->sysdata;
+	unsigned long addr;
+	u8 bus = pbus->number;
+
+	DBG_CFG(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x, "
+		 "pci_addr=0x%p, type1=0x%p)\n",
+		 bus, device_fn, where, pci_addr, type1));
+
+	if (!pbus->parent) /* No parent means peer PCI bus. */
+		bus = 0;
+	*type1 = (bus != 0);
+
+	addr = (bus << 16) | (device_fn << 8) | where;
+	addr |= hose->config_space_base;
+		
+	*pci_addr = addr;
+	DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
+	return 0;
+}
+
+static int 
+wildfire_read_config(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 *value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*value = __kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		*value = __kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*value = *(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int 
+wildfire_write_config(struct pci_bus *bus, unsigned int devfn, int where,
+		      int size, u32 value)
+{
+	unsigned long addr;
+	unsigned char type1;
+
+	if (mk_conf_addr(bus, devfn, where, &addr, &type1))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		__kernel_stb(value, *(vucp)addr);
+		mb();
+		__kernel_ldbu(*(vucp)addr);
+		break;
+	case 2:
+		__kernel_stw(value, *(vusp)addr);
+		mb();
+		__kernel_ldwu(*(vusp)addr);
+		break;
+	case 4:
+		*(vuip)addr = value;
+		mb();
+		*(vuip)addr;
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops wildfire_pci_ops =
+{
+	.read =		wildfire_read_config,
+	.write =	wildfire_write_config,
+};
+
+#if DEBUG_DUMP_REGS
+
+static void __init
+wildfire_dump_pci_regs(int qbbno, int hoseno)
+{
+	wildfire_pci *pci = WILDFIRE_pci(qbbno, hoseno);
+	int i;
+
+	printk(KERN_ERR "PCI registers for QBB %d hose %d (%p)\n",
+	       qbbno, hoseno, pci);
+
+	printk(KERN_ERR " PCI_IO_ADDR_EXT: 0x%16lx\n",
+	       pci->pci_io_addr_ext.csr);
+	printk(KERN_ERR " PCI_CTRL:        0x%16lx\n", pci->pci_ctrl.csr);
+	printk(KERN_ERR " PCI_ERR_SUM:     0x%16lx\n", pci->pci_err_sum.csr);
+	printk(KERN_ERR " PCI_ERR_ADDR:    0x%16lx\n", pci->pci_err_addr.csr);
+	printk(KERN_ERR " PCI_STALL_CNT:   0x%16lx\n", pci->pci_stall_cnt.csr);
+	printk(KERN_ERR " PCI_PEND_INT:    0x%16lx\n", pci->pci_pend_int.csr);
+	printk(KERN_ERR " PCI_SENT_INT:    0x%16lx\n", pci->pci_sent_int.csr);
+
+	printk(KERN_ERR " DMA window registers for QBB %d hose %d (%p)\n",
+	       qbbno, hoseno, pci);
+	for (i = 0; i < 4; i++) {
+		printk(KERN_ERR "  window %d: 0x%16lx 0x%16lx 0x%16lx\n", i,
+		       pci->pci_window[i].wbase.csr,
+		       pci->pci_window[i].wmask.csr,
+		       pci->pci_window[i].tbase.csr);
+	}
+	printk(KERN_ERR "\n");
+}
+
+static void __init
+wildfire_dump_pca_regs(int qbbno, int pcano)
+{
+	wildfire_pca *pca = WILDFIRE_pca(qbbno, pcano);
+	int i;
+
+	printk(KERN_ERR "PCA registers for QBB %d PCA %d (%p)\n",
+	       qbbno, pcano, pca);
+
+	printk(KERN_ERR " PCA_WHAT_AM_I: 0x%16lx\n", pca->pca_what_am_i.csr);
+	printk(KERN_ERR " PCA_ERR_SUM:   0x%16lx\n", pca->pca_err_sum.csr);
+	printk(KERN_ERR " PCA_PEND_INT:  0x%16lx\n", pca->pca_pend_int.csr);
+	printk(KERN_ERR " PCA_SENT_INT:  0x%16lx\n", pca->pca_sent_int.csr);
+	printk(KERN_ERR " PCA_STDIO_EL:  0x%16lx\n",
+	       pca->pca_stdio_edge_level.csr);
+
+	printk(KERN_ERR " PCA target registers for QBB %d PCA %d (%p)\n",
+	       qbbno, pcano, pca);
+	for (i = 0; i < 4; i++) {
+	  printk(KERN_ERR "  target %d: 0x%16lx 0x%16lx\n", i,
+		       pca->pca_int[i].target.csr,
+		       pca->pca_int[i].enable.csr);
+	}
+
+	printk(KERN_ERR "\n");
+}
+
+static void __init
+wildfire_dump_qsa_regs(int qbbno)
+{
+	wildfire_qsa *qsa = WILDFIRE_qsa(qbbno);
+	int i;
+
+	printk(KERN_ERR "QSA registers for QBB %d (%p)\n", qbbno, qsa);
+
+	printk(KERN_ERR " QSA_QBB_ID:      0x%16lx\n", qsa->qsa_qbb_id.csr);
+	printk(KERN_ERR " QSA_PORT_ENA:    0x%16lx\n", qsa->qsa_port_ena.csr);
+	printk(KERN_ERR " QSA_REF_INT:     0x%16lx\n", qsa->qsa_ref_int.csr);
+
+	for (i = 0; i < 5; i++)
+		printk(KERN_ERR " QSA_CONFIG_%d:    0x%16lx\n",
+		       i, qsa->qsa_config[i].csr);
+
+	for (i = 0; i < 2; i++)
+		printk(KERN_ERR " QSA_QBB_POP_%d:   0x%16lx\n",
+		       i, qsa->qsa_qbb_pop[0].csr);
+
+	printk(KERN_ERR "\n");
+}
+
+static void __init
+wildfire_dump_qsd_regs(int qbbno)
+{
+	wildfire_qsd *qsd = WILDFIRE_qsd(qbbno);
+
+	printk(KERN_ERR "QSD registers for QBB %d (%p)\n", qbbno, qsd);
+
+	printk(KERN_ERR " QSD_WHAMI:         0x%16lx\n", qsd->qsd_whami.csr);
+	printk(KERN_ERR " QSD_REV:           0x%16lx\n", qsd->qsd_rev.csr);
+	printk(KERN_ERR " QSD_PORT_PRESENT:  0x%16lx\n",
+	       qsd->qsd_port_present.csr);
+	printk(KERN_ERR " QSD_PORT_ACTIVE:   0x%16lx\n",
+	       qsd->qsd_port_active.csr);
+	printk(KERN_ERR " QSD_FAULT_ENA:     0x%16lx\n",
+	       qsd->qsd_fault_ena.csr);
+	printk(KERN_ERR " QSD_CPU_INT_ENA:   0x%16lx\n",
+	       qsd->qsd_cpu_int_ena.csr);
+	printk(KERN_ERR " QSD_MEM_CONFIG:    0x%16lx\n",
+	       qsd->qsd_mem_config.csr);
+	printk(KERN_ERR " QSD_ERR_SUM:       0x%16lx\n",
+	       qsd->qsd_err_sum.csr);
+
+	printk(KERN_ERR "\n");
+}
+
+static void __init
+wildfire_dump_iop_regs(int qbbno)
+{
+	wildfire_iop *iop = WILDFIRE_iop(qbbno);
+	int i;
+
+	printk(KERN_ERR "IOP registers for QBB %d (%p)\n", qbbno, iop);
+
+	printk(KERN_ERR " IOA_CONFIG:          0x%16lx\n", iop->ioa_config.csr);
+	printk(KERN_ERR " IOD_CONFIG:          0x%16lx\n", iop->iod_config.csr);
+	printk(KERN_ERR " IOP_SWITCH_CREDITS:  0x%16lx\n",
+	       iop->iop_switch_credits.csr);
+	printk(KERN_ERR " IOP_HOSE_CREDITS:    0x%16lx\n",
+	       iop->iop_hose_credits.csr);
+
+	for (i = 0; i < 4; i++) 
+		printk(KERN_ERR " IOP_HOSE_%d_INIT:     0x%16lx\n",
+		       i, iop->iop_hose[i].init.csr);
+	for (i = 0; i < 4; i++) 
+		printk(KERN_ERR " IOP_DEV_INT_TARGET_%d: 0x%16lx\n",
+		       i, iop->iop_dev_int[i].target.csr);
+
+	printk(KERN_ERR "\n");
+}
+
+static void __init
+wildfire_dump_gp_regs(int qbbno)
+{
+	wildfire_gp *gp = WILDFIRE_gp(qbbno);
+	int i;
+
+	printk(KERN_ERR "GP registers for QBB %d (%p)\n", qbbno, gp);
+	for (i = 0; i < 4; i++) 
+		printk(KERN_ERR " GPA_QBB_MAP_%d:     0x%16lx\n",
+		       i, gp->gpa_qbb_map[i].csr);
+
+	printk(KERN_ERR " GPA_MEM_POP_MAP:   0x%16lx\n",
+	       gp->gpa_mem_pop_map.csr);
+	printk(KERN_ERR " GPA_SCRATCH:       0x%16lx\n", gp->gpa_scratch.csr);
+	printk(KERN_ERR " GPA_DIAG:          0x%16lx\n", gp->gpa_diag.csr);
+	printk(KERN_ERR " GPA_CONFIG_0:      0x%16lx\n", gp->gpa_config_0.csr);
+	printk(KERN_ERR " GPA_INIT_ID:       0x%16lx\n", gp->gpa_init_id.csr);
+	printk(KERN_ERR " GPA_CONFIG_2:      0x%16lx\n", gp->gpa_config_2.csr);
+
+	printk(KERN_ERR "\n");
+}
+#endif /* DUMP_REGS */
+
+#if DEBUG_DUMP_CONFIG
+static void __init
+wildfire_dump_hardware_config(void)
+{
+	int i;
+
+	printk(KERN_ERR "Probed Hardware Configuration\n");
+
+	printk(KERN_ERR " hard_qbb_mask:  0x%16lx\n", wildfire_hard_qbb_mask);
+	printk(KERN_ERR " soft_qbb_mask:  0x%16lx\n", wildfire_soft_qbb_mask);
+
+	printk(KERN_ERR " gp_mask:        0x%16lx\n", wildfire_gp_mask);
+	printk(KERN_ERR " hs_mask:        0x%16lx\n", wildfire_hs_mask);
+	printk(KERN_ERR " iop_mask:       0x%16lx\n", wildfire_iop_mask);
+	printk(KERN_ERR " ior_mask:       0x%16lx\n", wildfire_ior_mask);
+	printk(KERN_ERR " pca_mask:       0x%16lx\n", wildfire_pca_mask);
+
+	printk(KERN_ERR " cpu_mask:       0x%16lx\n", wildfire_cpu_mask);
+	printk(KERN_ERR " mem_mask:       0x%16lx\n", wildfire_mem_mask);
+
+	printk(" hard_qbb_map: ");
+	for (i = 0; i < WILDFIRE_MAX_QBB; i++)
+	    if (wildfire_hard_qbb_map[i] == QBB_MAP_EMPTY)
+		printk("--- ");
+	    else
+		printk("%3d ", wildfire_hard_qbb_map[i]);
+	printk("\n");
+
+	printk(" soft_qbb_map: ");
+	for (i = 0; i < WILDFIRE_MAX_QBB; i++)
+	    if (wildfire_soft_qbb_map[i] == QBB_MAP_EMPTY)
+		printk("--- ");
+	    else
+		printk("%3d ", wildfire_soft_qbb_map[i]);
+	printk("\n");
+}
+#endif /* DUMP_CONFIG */
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
new file mode 100644
index 000000000..c41a5a9c3
--- /dev/null
+++ b/arch/alpha/kernel/entry.S
@@ -0,0 +1,854 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/kernel/entry.S
+ *
+ * Kernel entry-points.
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/pal.h>
+#include <asm/errno.h>
+#include <asm/unistd.h>
+
+	.text
+	.set noat
+	.cfi_sections	.debug_frame
+
+/* Stack offsets.  */
+#define SP_OFF			184
+#define SWITCH_STACK_SIZE	320
+
+.macro	CFI_START_OSF_FRAME	func
+	.align	4
+	.globl	\func
+	.type	\func,@function
+\func:
+	.cfi_startproc simple
+	.cfi_return_column 64
+	.cfi_def_cfa	$sp, 48
+	.cfi_rel_offset	64, 8
+	.cfi_rel_offset	$gp, 16
+	.cfi_rel_offset	$16, 24
+	.cfi_rel_offset	$17, 32
+	.cfi_rel_offset	$18, 40
+.endm
+
+.macro	CFI_END_OSF_FRAME	func
+	.cfi_endproc
+	.size	\func, . - \func
+.endm
+
+/*
+ * This defines the normal kernel pt-regs layout.
+ *
+ * regs 9-15 preserved by C code
+ * regs 16-18 saved by PAL-code
+ * regs 29-30 saved and set up by PAL-code
+ * JRP - Save regs 16-18 in a special area of the stack, so that
+ * the palcode-provided values are available to the signal handler.
+ */
+
+.macro	SAVE_ALL
+	subq	$sp, SP_OFF, $sp
+	.cfi_adjust_cfa_offset	SP_OFF
+	stq	$0, 0($sp)
+	stq	$1, 8($sp)
+	stq	$2, 16($sp)
+	stq	$3, 24($sp)
+	stq	$4, 32($sp)
+	stq	$28, 144($sp)
+	.cfi_rel_offset	$0, 0
+	.cfi_rel_offset $1, 8
+	.cfi_rel_offset	$2, 16
+	.cfi_rel_offset	$3, 24
+	.cfi_rel_offset	$4, 32
+	.cfi_rel_offset	$28, 144
+	lda	$2, alpha_mv
+	stq	$5, 40($sp)
+	stq	$6, 48($sp)
+	stq	$7, 56($sp)
+	stq	$8, 64($sp)
+	stq	$19, 72($sp)
+	stq	$20, 80($sp)
+	stq	$21, 88($sp)
+	ldq	$2, HAE_CACHE($2)
+	stq	$22, 96($sp)
+	stq	$23, 104($sp)
+	stq	$24, 112($sp)
+	stq	$25, 120($sp)
+	stq	$26, 128($sp)
+	stq	$27, 136($sp)
+	stq	$2, 152($sp)
+	stq	$16, 160($sp)
+	stq	$17, 168($sp)
+	stq	$18, 176($sp)
+	.cfi_rel_offset	$5, 40
+	.cfi_rel_offset	$6, 48
+	.cfi_rel_offset	$7, 56
+	.cfi_rel_offset	$8, 64
+	.cfi_rel_offset $19, 72
+	.cfi_rel_offset	$20, 80
+	.cfi_rel_offset	$21, 88
+	.cfi_rel_offset $22, 96
+	.cfi_rel_offset	$23, 104
+	.cfi_rel_offset	$24, 112
+	.cfi_rel_offset	$25, 120
+	.cfi_rel_offset	$26, 128
+	.cfi_rel_offset	$27, 136
+.endm
+
+.macro	RESTORE_ALL
+	lda	$19, alpha_mv
+	ldq	$0, 0($sp)
+	ldq	$1, 8($sp)
+	ldq	$2, 16($sp)
+	ldq	$3, 24($sp)
+	ldq	$21, 152($sp)
+	ldq	$20, HAE_CACHE($19)
+	ldq	$4, 32($sp)
+	ldq	$5, 40($sp)
+	ldq	$6, 48($sp)
+	ldq	$7, 56($sp)
+	subq	$20, $21, $20
+	ldq	$8, 64($sp)
+	beq	$20, 99f
+	ldq	$20, HAE_REG($19)
+	stq	$21, HAE_CACHE($19)
+	stq	$21, 0($20)
+99:	ldq	$19, 72($sp)
+	ldq	$20, 80($sp)
+	ldq	$21, 88($sp)
+	ldq	$22, 96($sp)
+	ldq	$23, 104($sp)
+	ldq	$24, 112($sp)
+	ldq	$25, 120($sp)
+	ldq	$26, 128($sp)
+	ldq	$27, 136($sp)
+	ldq	$28, 144($sp)
+	addq	$sp, SP_OFF, $sp
+	.cfi_restore	$0
+	.cfi_restore	$1
+	.cfi_restore	$2
+	.cfi_restore	$3
+	.cfi_restore	$4
+	.cfi_restore	$5
+	.cfi_restore	$6
+	.cfi_restore	$7
+	.cfi_restore	$8
+	.cfi_restore	$19
+	.cfi_restore	$20
+	.cfi_restore	$21
+	.cfi_restore	$22
+	.cfi_restore	$23
+	.cfi_restore	$24
+	.cfi_restore	$25
+	.cfi_restore	$26
+	.cfi_restore	$27
+	.cfi_restore	$28
+	.cfi_adjust_cfa_offset	-SP_OFF
+.endm
+
+.macro	DO_SWITCH_STACK
+	bsr	$1, do_switch_stack
+	.cfi_adjust_cfa_offset	SWITCH_STACK_SIZE
+	.cfi_rel_offset	$9, 0
+	.cfi_rel_offset	$10, 8
+	.cfi_rel_offset	$11, 16
+	.cfi_rel_offset	$12, 24
+	.cfi_rel_offset	$13, 32
+	.cfi_rel_offset	$14, 40
+	.cfi_rel_offset	$15, 48
+	/* We don't really care about the FP registers for debugging.  */
+.endm
+
+.macro	UNDO_SWITCH_STACK
+	bsr	$1, undo_switch_stack
+	.cfi_restore	$9
+	.cfi_restore	$10
+	.cfi_restore	$11
+	.cfi_restore	$12
+	.cfi_restore	$13
+	.cfi_restore	$14
+	.cfi_restore	$15
+	.cfi_adjust_cfa_offset	-SWITCH_STACK_SIZE
+.endm
+
+/*
+ * Non-syscall kernel entry points.
+ */
+
+CFI_START_OSF_FRAME entInt
+	SAVE_ALL
+	lda	$8, 0x3fff
+	lda	$26, ret_from_sys_call
+	bic	$sp, $8, $8
+	mov	$sp, $19
+	jsr	$31, do_entInt
+CFI_END_OSF_FRAME entInt
+
+CFI_START_OSF_FRAME entArith
+	SAVE_ALL
+	lda	$8, 0x3fff
+	lda	$26, ret_from_sys_call
+	bic	$sp, $8, $8
+	mov	$sp, $18
+	jsr	$31, do_entArith
+CFI_END_OSF_FRAME entArith
+
+CFI_START_OSF_FRAME entMM
+	SAVE_ALL
+/* save $9 - $15 so the inline exception code can manipulate them.  */
+	subq	$sp, 56, $sp
+	.cfi_adjust_cfa_offset	56
+	stq	$9, 0($sp)
+	stq	$10, 8($sp)
+	stq	$11, 16($sp)
+	stq	$12, 24($sp)
+	stq	$13, 32($sp)
+	stq	$14, 40($sp)
+	stq	$15, 48($sp)
+	.cfi_rel_offset	$9, 0
+	.cfi_rel_offset	$10, 8
+	.cfi_rel_offset	$11, 16
+	.cfi_rel_offset	$12, 24
+	.cfi_rel_offset	$13, 32
+	.cfi_rel_offset	$14, 40
+	.cfi_rel_offset	$15, 48
+	addq	$sp, 56, $19
+/* handle the fault */
+	lda	$8, 0x3fff
+	bic	$sp, $8, $8
+	jsr	$26, do_page_fault
+/* reload the registers after the exception code played.  */
+	ldq	$9, 0($sp)
+	ldq	$10, 8($sp)
+	ldq	$11, 16($sp)
+	ldq	$12, 24($sp)
+	ldq	$13, 32($sp)
+	ldq	$14, 40($sp)
+	ldq	$15, 48($sp)
+	addq	$sp, 56, $sp
+	.cfi_restore	$9
+	.cfi_restore	$10
+	.cfi_restore	$11
+	.cfi_restore	$12
+	.cfi_restore	$13
+	.cfi_restore	$14
+	.cfi_restore	$15
+	.cfi_adjust_cfa_offset	-56
+/* finish up the syscall as normal.  */
+	br	ret_from_sys_call
+CFI_END_OSF_FRAME entMM
+
+CFI_START_OSF_FRAME entIF
+	SAVE_ALL
+	lda	$8, 0x3fff
+	lda	$26, ret_from_sys_call
+	bic	$sp, $8, $8
+	mov	$sp, $17
+	jsr	$31, do_entIF
+CFI_END_OSF_FRAME entIF
+
+CFI_START_OSF_FRAME entUna
+	lda	$sp, -256($sp)
+	.cfi_adjust_cfa_offset	256
+	stq	$0, 0($sp)
+	.cfi_rel_offset	$0, 0
+	.cfi_remember_state
+	ldq	$0, 256($sp)	/* get PS */
+	stq	$1, 8($sp)
+	stq	$2, 16($sp)
+	stq	$3, 24($sp)
+	and	$0, 8, $0		/* user mode? */
+	stq	$4, 32($sp)
+	bne	$0, entUnaUser	/* yup -> do user-level unaligned fault */
+	stq	$5, 40($sp)
+	stq	$6, 48($sp)
+	stq	$7, 56($sp)
+	stq	$8, 64($sp)
+	stq	$9, 72($sp)
+	stq	$10, 80($sp)
+	stq	$11, 88($sp)
+	stq	$12, 96($sp)
+	stq	$13, 104($sp)
+	stq	$14, 112($sp)
+	stq	$15, 120($sp)
+	/* 16-18 PAL-saved */
+	stq	$19, 152($sp)
+	stq	$20, 160($sp)
+	stq	$21, 168($sp)
+	stq	$22, 176($sp)
+	stq	$23, 184($sp)
+	stq	$24, 192($sp)
+	stq	$25, 200($sp)
+	stq	$26, 208($sp)
+	stq	$27, 216($sp)
+	stq	$28, 224($sp)
+	mov	$sp, $19
+	stq	$gp, 232($sp)
+	.cfi_rel_offset	$1, 1*8
+	.cfi_rel_offset	$2, 2*8
+	.cfi_rel_offset	$3, 3*8
+	.cfi_rel_offset	$4, 4*8
+	.cfi_rel_offset	$5, 5*8
+	.cfi_rel_offset	$6, 6*8
+	.cfi_rel_offset	$7, 7*8
+	.cfi_rel_offset	$8, 8*8
+	.cfi_rel_offset	$9, 9*8
+	.cfi_rel_offset	$10, 10*8
+	.cfi_rel_offset	$11, 11*8
+	.cfi_rel_offset	$12, 12*8
+	.cfi_rel_offset	$13, 13*8
+	.cfi_rel_offset	$14, 14*8
+	.cfi_rel_offset	$15, 15*8
+	.cfi_rel_offset	$19, 19*8
+	.cfi_rel_offset	$20, 20*8
+	.cfi_rel_offset	$21, 21*8
+	.cfi_rel_offset	$22, 22*8
+	.cfi_rel_offset	$23, 23*8
+	.cfi_rel_offset	$24, 24*8
+	.cfi_rel_offset	$25, 25*8
+	.cfi_rel_offset	$26, 26*8
+	.cfi_rel_offset	$27, 27*8
+	.cfi_rel_offset	$28, 28*8
+	.cfi_rel_offset	$29, 29*8
+	lda	$8, 0x3fff
+	stq	$31, 248($sp)
+	bic	$sp, $8, $8
+	jsr	$26, do_entUna
+	ldq	$0, 0($sp)
+	ldq	$1, 8($sp)
+	ldq	$2, 16($sp)
+	ldq	$3, 24($sp)
+	ldq	$4, 32($sp)
+	ldq	$5, 40($sp)
+	ldq	$6, 48($sp)
+	ldq	$7, 56($sp)
+	ldq	$8, 64($sp)
+	ldq	$9, 72($sp)
+	ldq	$10, 80($sp)
+	ldq	$11, 88($sp)
+	ldq	$12, 96($sp)
+	ldq	$13, 104($sp)
+	ldq	$14, 112($sp)
+	ldq	$15, 120($sp)
+	/* 16-18 PAL-saved */
+	ldq	$19, 152($sp)
+	ldq	$20, 160($sp)
+	ldq	$21, 168($sp)
+	ldq	$22, 176($sp)
+	ldq	$23, 184($sp)
+	ldq	$24, 192($sp)
+	ldq	$25, 200($sp)
+	ldq	$26, 208($sp)
+	ldq	$27, 216($sp)
+	ldq	$28, 224($sp)
+	ldq	$gp, 232($sp)
+	lda	$sp, 256($sp)
+	.cfi_restore	$1
+	.cfi_restore	$2
+	.cfi_restore	$3
+	.cfi_restore	$4
+	.cfi_restore	$5
+	.cfi_restore	$6
+	.cfi_restore	$7
+	.cfi_restore	$8
+	.cfi_restore	$9
+	.cfi_restore	$10
+	.cfi_restore	$11
+	.cfi_restore	$12
+	.cfi_restore	$13
+	.cfi_restore	$14
+	.cfi_restore	$15
+	.cfi_restore	$19
+	.cfi_restore	$20
+	.cfi_restore	$21
+	.cfi_restore	$22
+	.cfi_restore	$23
+	.cfi_restore	$24
+	.cfi_restore	$25
+	.cfi_restore	$26
+	.cfi_restore	$27
+	.cfi_restore	$28
+	.cfi_restore	$29
+	.cfi_adjust_cfa_offset	-256
+	call_pal PAL_rti
+
+	.align	4
+entUnaUser:
+	.cfi_restore_state
+	ldq	$0, 0($sp)	/* restore original $0 */
+	lda	$sp, 256($sp)	/* pop entUna's stack frame */
+	.cfi_restore	$0
+	.cfi_adjust_cfa_offset	-256
+	SAVE_ALL		/* setup normal kernel stack */
+	lda	$sp, -56($sp)
+	.cfi_adjust_cfa_offset	56
+	stq	$9, 0($sp)
+	stq	$10, 8($sp)
+	stq	$11, 16($sp)
+	stq	$12, 24($sp)
+	stq	$13, 32($sp)
+	stq	$14, 40($sp)
+	stq	$15, 48($sp)
+	.cfi_rel_offset	$9, 0
+	.cfi_rel_offset	$10, 8
+	.cfi_rel_offset	$11, 16
+	.cfi_rel_offset	$12, 24
+	.cfi_rel_offset	$13, 32
+	.cfi_rel_offset	$14, 40
+	.cfi_rel_offset	$15, 48
+	lda	$8, 0x3fff
+	addq	$sp, 56, $19
+	bic	$sp, $8, $8
+	jsr	$26, do_entUnaUser
+	ldq	$9, 0($sp)
+	ldq	$10, 8($sp)
+	ldq	$11, 16($sp)
+	ldq	$12, 24($sp)
+	ldq	$13, 32($sp)
+	ldq	$14, 40($sp)
+	ldq	$15, 48($sp)
+	lda	$sp, 56($sp)
+	.cfi_restore	$9
+	.cfi_restore	$10
+	.cfi_restore	$11
+	.cfi_restore	$12
+	.cfi_restore	$13
+	.cfi_restore	$14
+	.cfi_restore	$15
+	.cfi_adjust_cfa_offset	-56
+	br	ret_from_sys_call
+CFI_END_OSF_FRAME entUna
+
+CFI_START_OSF_FRAME entDbg
+	SAVE_ALL
+	lda	$8, 0x3fff
+	lda	$26, ret_from_sys_call
+	bic	$sp, $8, $8
+	mov	$sp, $16
+	jsr	$31, do_entDbg
+CFI_END_OSF_FRAME entDbg
+
+/*
+ * The system call entry point is special.  Most importantly, it looks
+ * like a function call to userspace as far as clobbered registers.  We
+ * do preserve the argument registers (for syscall restarts) and $26
+ * (for leaf syscall functions).
+ *
+ * So much for theory.  We don't take advantage of this yet.
+ *
+ * Note that a0-a2 are not saved by PALcode as with the other entry points.
+ */
+
+	.align	4
+	.globl	entSys
+	.type	entSys, @function
+	.cfi_startproc simple
+	.cfi_return_column 64
+	.cfi_def_cfa	$sp, 48
+	.cfi_rel_offset	64, 8
+	.cfi_rel_offset	$gp, 16
+entSys:
+	SAVE_ALL
+	lda	$8, 0x3fff
+	bic	$sp, $8, $8
+	lda	$4, NR_SYSCALLS($31)
+	stq	$16, SP_OFF+24($sp)
+	lda	$5, sys_call_table
+	lda	$27, sys_ni_syscall
+	cmpult	$0, $4, $4
+	ldl	$3, TI_FLAGS($8)
+	stq	$17, SP_OFF+32($sp)
+	s8addq	$0, $5, $5
+	stq	$18, SP_OFF+40($sp)
+	.cfi_rel_offset	$16, SP_OFF+24
+	.cfi_rel_offset	$17, SP_OFF+32
+	.cfi_rel_offset	$18, SP_OFF+40
+#ifdef CONFIG_AUDITSYSCALL
+	lda     $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+	and     $3, $6, $3
+	bne     $3, strace
+#else
+	blbs    $3, strace		/* check for SYSCALL_TRACE in disguise */
+#endif
+	beq	$4, 1f
+	ldq	$27, 0($5)
+1:	jsr	$26, ($27), sys_ni_syscall
+	ldgp	$gp, 0($26)
+	blt	$0, $syscall_error	/* the call failed */
+	stq	$0, 0($sp)
+	stq	$31, 72($sp)		/* a3=0 => no error */
+
+	.align	4
+	.globl	ret_from_sys_call
+ret_from_sys_call:
+	cmovne	$26, 0, $18		/* $18 = 0 => non-restartable */
+	ldq	$0, SP_OFF($sp)
+	and	$0, 8, $0
+	beq	$0, ret_to_kernel
+ret_to_user:
+	/* Make sure need_resched and sigpending don't change between
+		sampling and the rti.  */
+	lda	$16, 7
+	call_pal PAL_swpipl
+	ldl	$17, TI_FLAGS($8)
+	and	$17, _TIF_WORK_MASK, $2
+	bne	$2, work_pending
+restore_all:
+	.cfi_remember_state
+	RESTORE_ALL
+	call_pal PAL_rti
+
+ret_to_kernel:
+	.cfi_restore_state
+	lda	$16, 7
+	call_pal PAL_swpipl
+	br restore_all
+
+	.align 3
+$syscall_error:
+	/*
+	 * Some system calls (e.g., ptrace) can return arbitrary
+	 * values which might normally be mistaken as error numbers.
+	 * Those functions must zero $0 (v0) directly in the stack
+	 * frame to indicate that a negative return value wasn't an
+	 * error number..
+	 */
+	ldq	$18, 0($sp)	/* old syscall nr (zero if success) */
+	beq	$18, $ret_success
+
+	ldq	$19, 72($sp)	/* .. and this a3 */
+	subq	$31, $0, $0	/* with error in v0 */
+	addq	$31, 1, $1	/* set a3 for errno return */
+	stq	$0, 0($sp)
+	mov	$31, $26	/* tell "ret_from_sys_call" we can restart */
+	stq	$1, 72($sp)	/* a3 for return */
+	br	ret_from_sys_call
+
+$ret_success:
+	stq	$0, 0($sp)
+	stq	$31, 72($sp)	/* a3=0 => no error */
+	br	ret_from_sys_call
+
+/*
+ * Do all cleanup when returning from all interrupts and system calls.
+ *
+ * Arguments:
+ *       $8: current.
+ *      $17: TI_FLAGS.
+ *      $18: The old syscall number, or zero if this is not a return
+ *           from a syscall that errored and is possibly restartable.
+ *      $19: The old a3 value
+ */
+
+	.align	4
+	.type	work_pending, @function
+work_pending:
+	and	$17, _TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL, $2
+	bne	$2, $work_notifysig
+
+$work_resched:
+	/*
+	 * We can get here only if we returned from syscall without SIGPENDING
+	 * or got through work_notifysig already.  Either case means no syscall
+	 * restarts for us, so let $18 and $19 burn.
+	 */
+	jsr	$26, schedule
+	mov	0, $18
+	br	ret_to_user
+
+$work_notifysig:
+	mov	$sp, $16
+	DO_SWITCH_STACK
+	jsr	$26, do_work_pending
+	UNDO_SWITCH_STACK
+	br	restore_all
+
+/*
+ * PTRACE syscall handler
+ */
+
+	.align	4
+	.type	strace, @function
+strace:
+	/* set up signal stack, call syscall_trace */
+	DO_SWITCH_STACK
+	jsr	$26, syscall_trace_enter /* returns the syscall number */
+	UNDO_SWITCH_STACK
+
+	/* get the arguments back.. */
+	ldq	$16, SP_OFF+24($sp)
+	ldq	$17, SP_OFF+32($sp)
+	ldq	$18, SP_OFF+40($sp)
+	ldq	$19, 72($sp)
+	ldq	$20, 80($sp)
+	ldq	$21, 88($sp)
+
+	/* get the system call pointer.. */
+	lda	$1, NR_SYSCALLS($31)
+	lda	$2, sys_call_table
+	lda	$27, sys_ni_syscall
+	cmpult	$0, $1, $1
+	s8addq	$0, $2, $2
+	beq	$1, 1f
+	ldq	$27, 0($2)
+1:	jsr	$26, ($27), sys_gettimeofday
+ret_from_straced:
+	ldgp	$gp, 0($26)
+
+	/* check return.. */
+	blt	$0, $strace_error	/* the call failed */
+	stq	$31, 72($sp)		/* a3=0 => no error */
+$strace_success:
+	stq	$0, 0($sp)		/* save return value */
+
+	DO_SWITCH_STACK
+	jsr	$26, syscall_trace_leave
+	UNDO_SWITCH_STACK
+	br	$31, ret_from_sys_call
+
+	.align	3
+$strace_error:
+	ldq	$18, 0($sp)	/* old syscall nr (zero if success) */
+	beq	$18, $strace_success
+	ldq	$19, 72($sp)	/* .. and this a3 */
+
+	subq	$31, $0, $0	/* with error in v0 */
+	addq	$31, 1, $1	/* set a3 for errno return */
+	stq	$0, 0($sp)
+	stq	$1, 72($sp)	/* a3 for return */
+
+	DO_SWITCH_STACK
+	mov	$18, $9		/* save old syscall number */
+	mov	$19, $10	/* save old a3 */
+	jsr	$26, syscall_trace_leave
+	mov	$9, $18
+	mov	$10, $19
+	UNDO_SWITCH_STACK
+
+	mov	$31, $26	/* tell "ret_from_sys_call" we can restart */
+	br	ret_from_sys_call
+CFI_END_OSF_FRAME entSys
+
+/*
+ * Save and restore the switch stack -- aka the balance of the user context.
+ */
+
+	.align	4
+	.type	do_switch_stack, @function
+	.cfi_startproc simple
+	.cfi_return_column 64
+	.cfi_def_cfa $sp, 0
+	.cfi_register 64, $1
+do_switch_stack:
+	lda	$sp, -SWITCH_STACK_SIZE($sp)
+	.cfi_adjust_cfa_offset	SWITCH_STACK_SIZE
+	stq	$9, 0($sp)
+	stq	$10, 8($sp)
+	stq	$11, 16($sp)
+	stq	$12, 24($sp)
+	stq	$13, 32($sp)
+	stq	$14, 40($sp)
+	stq	$15, 48($sp)
+	stq	$26, 56($sp)
+	stt	$f0, 64($sp)
+	stt	$f1, 72($sp)
+	stt	$f2, 80($sp)
+	stt	$f3, 88($sp)
+	stt	$f4, 96($sp)
+	stt	$f5, 104($sp)
+	stt	$f6, 112($sp)
+	stt	$f7, 120($sp)
+	stt	$f8, 128($sp)
+	stt	$f9, 136($sp)
+	stt	$f10, 144($sp)
+	stt	$f11, 152($sp)
+	stt	$f12, 160($sp)
+	stt	$f13, 168($sp)
+	stt	$f14, 176($sp)
+	stt	$f15, 184($sp)
+	stt	$f16, 192($sp)
+	stt	$f17, 200($sp)
+	stt	$f18, 208($sp)
+	stt	$f19, 216($sp)
+	stt	$f20, 224($sp)
+	stt	$f21, 232($sp)
+	stt	$f22, 240($sp)
+	stt	$f23, 248($sp)
+	stt	$f24, 256($sp)
+	stt	$f25, 264($sp)
+	stt	$f26, 272($sp)
+	stt	$f27, 280($sp)
+	mf_fpcr	$f0		# get fpcr
+	stt	$f28, 288($sp)
+	stt	$f29, 296($sp)
+	stt	$f30, 304($sp)
+	stt	$f0, 312($sp)	# save fpcr in slot of $f31
+	ldt	$f0, 64($sp)	# dont let "do_switch_stack" change fp state.
+	ret	$31, ($1), 1
+	.cfi_endproc
+	.size	do_switch_stack, .-do_switch_stack
+
+	.align	4
+	.type	undo_switch_stack, @function
+	.cfi_startproc simple
+	.cfi_def_cfa $sp, 0
+	.cfi_register 64, $1
+undo_switch_stack:
+	ldq	$9, 0($sp)
+	ldq	$10, 8($sp)
+	ldq	$11, 16($sp)
+	ldq	$12, 24($sp)
+	ldq	$13, 32($sp)
+	ldq	$14, 40($sp)
+	ldq	$15, 48($sp)
+	ldq	$26, 56($sp)
+	ldt	$f30, 312($sp)	# get saved fpcr
+	ldt	$f0, 64($sp)
+	ldt	$f1, 72($sp)
+	ldt	$f2, 80($sp)
+	ldt	$f3, 88($sp)
+	mt_fpcr	$f30		# install saved fpcr
+	ldt	$f4, 96($sp)
+	ldt	$f5, 104($sp)
+	ldt	$f6, 112($sp)
+	ldt	$f7, 120($sp)
+	ldt	$f8, 128($sp)
+	ldt	$f9, 136($sp)
+	ldt	$f10, 144($sp)
+	ldt	$f11, 152($sp)
+	ldt	$f12, 160($sp)
+	ldt	$f13, 168($sp)
+	ldt	$f14, 176($sp)
+	ldt	$f15, 184($sp)
+	ldt	$f16, 192($sp)
+	ldt	$f17, 200($sp)
+	ldt	$f18, 208($sp)
+	ldt	$f19, 216($sp)
+	ldt	$f20, 224($sp)
+	ldt	$f21, 232($sp)
+	ldt	$f22, 240($sp)
+	ldt	$f23, 248($sp)
+	ldt	$f24, 256($sp)
+	ldt	$f25, 264($sp)
+	ldt	$f26, 272($sp)
+	ldt	$f27, 280($sp)
+	ldt	$f28, 288($sp)
+	ldt	$f29, 296($sp)
+	ldt	$f30, 304($sp)
+	lda	$sp, SWITCH_STACK_SIZE($sp)
+	ret	$31, ($1), 1
+	.cfi_endproc
+	.size	undo_switch_stack, .-undo_switch_stack
+
+/*
+ * The meat of the context switch code.
+ */
+
+	.align	4
+	.globl	alpha_switch_to
+	.type	alpha_switch_to, @function
+	.cfi_startproc
+alpha_switch_to:
+	DO_SWITCH_STACK
+	call_pal PAL_swpctx
+	lda	$8, 0x3fff
+	UNDO_SWITCH_STACK
+	bic	$sp, $8, $8
+	mov	$17, $0
+	ret
+	.cfi_endproc
+	.size	alpha_switch_to, .-alpha_switch_to
+
+/*
+ * New processes begin life here.
+ */
+
+	.globl	ret_from_fork
+	.align	4
+	.ent	ret_from_fork
+ret_from_fork:
+	lda	$26, ret_from_sys_call
+	mov	$17, $16
+	jmp	$31, schedule_tail
+.end ret_from_fork
+
+/*
+ * ... and new kernel threads - here
+ */
+	.align 4
+	.globl	ret_from_kernel_thread
+	.ent	ret_from_kernel_thread
+ret_from_kernel_thread:
+	mov	$17, $16
+	jsr	$26, schedule_tail
+	mov	$9, $27
+	mov	$10, $16
+	jsr	$26, ($9)
+	br	$31, ret_to_user
+.end ret_from_kernel_thread
+
+
+/*
+ * Special system calls.  Most of these are special in that they either
+ * have to play switch_stack games.
+ */
+
+.macro	fork_like name
+	.align	4
+	.globl	alpha_\name
+	.ent	alpha_\name
+alpha_\name:
+	.prologue 0
+	bsr	$1, do_switch_stack
+	jsr	$26, sys_\name
+	ldq	$26, 56($sp)
+	lda	$sp, SWITCH_STACK_SIZE($sp)
+	ret
+.end	alpha_\name
+.endm
+
+fork_like fork
+fork_like vfork
+fork_like clone
+
+.macro	sigreturn_like name
+	.align	4
+	.globl	sys_\name
+	.ent	sys_\name
+sys_\name:
+	.prologue 0
+	lda	$9, ret_from_straced
+	cmpult	$26, $9, $9
+	lda	$sp, -SWITCH_STACK_SIZE($sp)
+	jsr	$26, do_\name
+	bne	$9, 1f
+	jsr	$26, syscall_trace_leave
+1:	br	$1, undo_switch_stack
+	br	ret_from_sys_call
+.end sys_\name
+.endm
+
+sigreturn_like sigreturn
+sigreturn_like rt_sigreturn
+
+	.align	4
+	.globl	alpha_syscall_zero
+	.ent	alpha_syscall_zero
+alpha_syscall_zero:
+	.prologue 0
+	/* Special because it needs to do something opposite to
+	   force_successful_syscall_return().  We use the saved
+	   syscall number for that, zero meaning "not an error".
+	   That works nicely, but for real syscall 0 we need to
+	   make sure that this logics doesn't get confused.
+	   Store a non-zero there - -ENOSYS we need in register
+	   for our return value will do just fine.
+	  */
+	lda	$0, -ENOSYS
+	unop
+	stq	$0, 0($sp)
+	ret
+.end alpha_syscall_zero
diff --git a/arch/alpha/kernel/err_common.c b/arch/alpha/kernel/err_common.c
new file mode 100644
index 000000000..94e1b3dcf
--- /dev/null
+++ b/arch/alpha/kernel/err_common.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_common.c
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Error handling code supporting Alpha systems
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/hwrpb.h>
+#include <asm/smp.h>
+#include <asm/err_common.h>
+
+#include "err_impl.h"
+#include "proto.h"
+
+/*
+ * err_print_prefix -- error handling print routines should prefix
+ * all prints with this
+ */
+char *err_print_prefix = KERN_NOTICE;
+
+
+/*
+ * Generic
+ */
+void
+mchk_dump_mem(void *data, size_t length, char **annotation)
+{
+	unsigned long *ldata = data;
+	size_t i;
+	
+	for (i = 0; (i * sizeof(*ldata)) < length; i++) {
+		if (annotation && !annotation[i]) 
+			annotation = NULL;
+		printk("%s    %08x: %016lx    %s\n",
+		       err_print_prefix,
+		       (unsigned)(i * sizeof(*ldata)), ldata[i],
+		       annotation ? annotation[i] : "");
+	}
+}
+
+void
+mchk_dump_logout_frame(struct el_common *mchk_header)
+{
+	printk("%s  -- Frame Header --\n"
+	         "    Frame Size:   %d (0x%x) bytes\n"
+	         "    Flags:        %s%s\n"
+	         "    MCHK Code:    0x%x\n"
+	         "    Frame Rev:    %d\n"
+	         "    Proc Offset:  0x%08x\n"
+	         "    Sys Offset:   0x%08x\n"
+  	         "  -- Processor Region --\n",
+	       err_print_prefix, 
+	       mchk_header->size, mchk_header->size,
+	       mchk_header->retry ? "RETRY " : "", 
+  	         mchk_header->err2 ? "SECOND_ERR " : "",
+	       mchk_header->code,
+	       mchk_header->frame_rev,
+	       mchk_header->proc_offset,
+	       mchk_header->sys_offset);
+
+	mchk_dump_mem((void *)
+		      ((unsigned long)mchk_header + mchk_header->proc_offset),
+		      mchk_header->sys_offset - mchk_header->proc_offset,
+		      NULL);
+	
+	printk("%s  -- System Region --\n", err_print_prefix);
+	mchk_dump_mem((void *)
+		      ((unsigned long)mchk_header + mchk_header->sys_offset),
+		      mchk_header->size - mchk_header->sys_offset,
+		      NULL);
+	printk("%s  -- End of Frame --\n", err_print_prefix);
+}
+
+
+/*
+ * Console Data Log
+ */
+/* Data */
+static struct el_subpacket_handler *subpacket_handler_list = NULL;
+static struct el_subpacket_annotation *subpacket_annotation_list = NULL;
+
+static struct el_subpacket *
+el_process_header_subpacket(struct el_subpacket *header)
+{
+	union el_timestamp timestamp;
+	char *name = "UNKNOWN EVENT";
+	int packet_count = 0;
+	int length = 0;
+
+	if (header->class != EL_CLASS__HEADER) {
+		printk("%s** Unexpected header CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;
+	}
+
+	switch(header->type) {
+	case EL_TYPE__HEADER__SYSTEM_ERROR_FRAME:
+		name = "SYSTEM ERROR";
+		length = header->by_type.sys_err.frame_length;
+		packet_count = 
+			header->by_type.sys_err.frame_packet_count;
+		timestamp.as_int = 0;
+		break;
+	case EL_TYPE__HEADER__SYSTEM_EVENT_FRAME:
+		name = "SYSTEM EVENT";
+		length = header->by_type.sys_event.frame_length;
+		packet_count = 
+			header->by_type.sys_event.frame_packet_count;
+		timestamp = header->by_type.sys_event.timestamp;
+		break;
+	case EL_TYPE__HEADER__HALT_FRAME:
+		name = "ERROR HALT";
+		length = header->by_type.err_halt.frame_length;
+		packet_count = 
+			header->by_type.err_halt.frame_packet_count;
+		timestamp = header->by_type.err_halt.timestamp;
+		break;
+	case EL_TYPE__HEADER__LOGOUT_FRAME:
+		name = "LOGOUT FRAME";
+		length = header->by_type.logout_header.frame_length;
+		packet_count = 1;
+		timestamp.as_int = 0;
+		break;
+	default: /* Unknown */
+		printk("%s** Unknown header - CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;		
+	}
+
+	printk("%s*** %s:\n"
+	         "  CLASS %d, TYPE %d\n", 
+	       err_print_prefix,
+	       name,
+	       header->class, header->type);
+	el_print_timestamp(&timestamp);
+	
+	/*
+	 * Process the subpackets
+	 */
+	el_process_subpackets(header, packet_count);
+
+	/* return the next header */
+	header = (struct el_subpacket *)
+		((unsigned long)header + header->length + length);
+	return header;
+}
+
+static struct el_subpacket *
+el_process_subpacket_reg(struct el_subpacket *header)
+{
+	struct el_subpacket *next = NULL;
+	struct el_subpacket_handler *h = subpacket_handler_list;
+
+	for (; h && h->class != header->class; h = h->next);
+	if (h) next = h->handler(header);
+
+	return next;
+}
+
+void
+el_print_timestamp(union el_timestamp *timestamp)
+{
+	if (timestamp->as_int)
+		printk("%s  TIMESTAMP: %d/%d/%02d %d:%02d:%0d\n", 
+		       err_print_prefix,
+		       timestamp->b.month, timestamp->b.day,
+		       timestamp->b.year, timestamp->b.hour,
+		       timestamp->b.minute, timestamp->b.second);
+}
+
+void
+el_process_subpackets(struct el_subpacket *header, int packet_count)
+{
+	struct el_subpacket *subpacket;
+	int i;
+
+	subpacket = (struct el_subpacket *)
+		((unsigned long)header + header->length);
+
+	for (i = 0; subpacket && i < packet_count; i++) {
+		printk("%sPROCESSING SUBPACKET %d\n", err_print_prefix, i);
+		subpacket = el_process_subpacket(subpacket);
+	}
+}
+
+struct el_subpacket *
+el_process_subpacket(struct el_subpacket *header)
+{
+	struct el_subpacket *next = NULL;
+
+	switch(header->class) {
+	case EL_CLASS__TERMINATION:
+		/* Termination packet, there are no more */
+		break;
+	case EL_CLASS__HEADER: 
+		next = el_process_header_subpacket(header);
+		break;
+	default:
+		if (NULL == (next = el_process_subpacket_reg(header))) {
+			printk("%s** Unexpected header CLASS %d TYPE %d"
+			       " -- aborting.\n",
+			       err_print_prefix,
+			       header->class, header->type);
+		}
+		break;
+	}
+
+	return next;
+}
+
+void 
+el_annotate_subpacket(struct el_subpacket *header)
+{
+	struct el_subpacket_annotation *a;
+	char **annotation = NULL;
+
+	for (a = subpacket_annotation_list; a; a = a->next) {
+		if (a->class == header->class &&
+		    a->type == header->type &&
+		    a->revision == header->revision) {
+			/*
+			 * We found the annotation
+			 */
+			annotation = a->annotation;
+			printk("%s  %s\n", err_print_prefix, a->description);
+			break;
+		}
+	}
+
+	mchk_dump_mem(header, header->length, annotation);
+}
+
+static void __init
+cdl_process_console_data_log(int cpu, struct percpu_struct *pcpu)
+{
+	struct el_subpacket *header = (struct el_subpacket *)
+		(IDENT_ADDR | pcpu->console_data_log_pa);
+	int err;
+
+	printk("%s******* CONSOLE DATA LOG FOR CPU %d. *******\n"
+	         "*** Error(s) were logged on a previous boot\n",
+	       err_print_prefix, cpu);
+	
+	for (err = 0; header && (header->class != EL_CLASS__TERMINATION); err++)
+		header = el_process_subpacket(header);
+
+	/* let the console know it's ok to clear the error(s) at restart */
+	pcpu->console_data_log_pa = 0;
+
+	printk("%s*** %d total error(s) logged\n"
+	         "**** END OF CONSOLE DATA LOG FOR CPU %d ****\n", 
+	       err_print_prefix, err, cpu);
+}
+
+void __init
+cdl_check_console_data_log(void)
+{
+	struct percpu_struct *pcpu;
+	unsigned long cpu;
+
+	for (cpu = 0; cpu < hwrpb->nr_processors; cpu++) {
+		pcpu = (struct percpu_struct *)
+			((unsigned long)hwrpb + hwrpb->processor_offset 
+			 + cpu * hwrpb->processor_size);
+		if (pcpu->console_data_log_pa)
+			cdl_process_console_data_log(cpu, pcpu);
+	}
+
+}
+
+int __init
+cdl_register_subpacket_annotation(struct el_subpacket_annotation *new)
+{
+	struct el_subpacket_annotation *a = subpacket_annotation_list;
+
+	if (a == NULL) subpacket_annotation_list = new;
+	else {
+		for (; a->next != NULL; a = a->next) {
+			if ((a->class == new->class && a->type == new->type) ||
+			    a == new) {
+				printk("Attempted to re-register "
+				       "subpacket annotation\n");
+				return -EINVAL;
+			}
+		}
+		a->next = new;
+	}
+	new->next = NULL;
+
+	return 0;
+}
+
+int __init
+cdl_register_subpacket_handler(struct el_subpacket_handler *new)
+{
+	struct el_subpacket_handler *h = subpacket_handler_list;
+
+	if (h == NULL) subpacket_handler_list = new;
+	else {
+		for (; h->next != NULL; h = h->next) {
+			if (h->class == new->class || h == new) {
+				printk("Attempted to re-register "
+				       "subpacket handler\n");
+				return -EINVAL;
+			}
+		}
+		h->next = new;
+	}
+	new->next = NULL;
+
+	return 0;
+}
+
diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c
new file mode 100644
index 000000000..8144f2045
--- /dev/null
+++ b/arch/alpha/kernel/err_ev6.c
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_ev6.c
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Error handling code supporting Alpha systems
+ */
+
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/irq_regs.h>
+#include <asm/hwrpb.h>
+#include <asm/smp.h>
+#include <asm/err_common.h>
+#include <asm/err_ev6.h>
+
+#include "err_impl.h"
+#include "proto.h"
+
+static int
+ev6_parse_ibox(u64 i_stat, int print)
+{
+	int status = MCHK_DISPOSITION_REPORT;
+
+#define EV6__I_STAT__PAR	(1UL << 29)
+#define EV6__I_STAT__ERRMASK	(EV6__I_STAT__PAR)
+
+	if (!(i_stat & EV6__I_STAT__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	if (!print)
+		return status;
+
+	if (i_stat & EV6__I_STAT__PAR)
+		printk("%s    Icache parity error\n", err_print_prefix);
+
+	return status;
+}
+
+static int
+ev6_parse_mbox(u64 mm_stat, u64 d_stat, u64 c_stat, int print)
+{
+	int status = MCHK_DISPOSITION_REPORT;
+
+#define EV6__MM_STAT__DC_TAG_PERR	(1UL << 10)
+#define EV6__MM_STAT__ERRMASK		(EV6__MM_STAT__DC_TAG_PERR)
+#define EV6__D_STAT__TPERR_P0		(1UL << 0)
+#define EV6__D_STAT__TPERR_P1		(1UL << 1)
+#define EV6__D_STAT__ECC_ERR_ST		(1UL << 2)
+#define EV6__D_STAT__ECC_ERR_LD		(1UL << 3)
+#define EV6__D_STAT__SEO		(1UL << 4)
+#define EV6__D_STAT__ERRMASK		(EV6__D_STAT__TPERR_P0 |	\
+                                         EV6__D_STAT__TPERR_P1 | 	\
+                                         EV6__D_STAT__ECC_ERR_ST | 	\
+                                         EV6__D_STAT__ECC_ERR_LD | 	\
+                                         EV6__D_STAT__SEO)
+
+	if (!(d_stat & EV6__D_STAT__ERRMASK) && 
+	    !(mm_stat & EV6__MM_STAT__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	if (!print)
+		return status;
+
+	if (mm_stat & EV6__MM_STAT__DC_TAG_PERR)
+		printk("%s    Dcache tag parity error on probe\n",
+		       err_print_prefix);
+	if (d_stat & EV6__D_STAT__TPERR_P0)
+		printk("%s    Dcache tag parity error - pipe 0\n",
+		       err_print_prefix);
+	if (d_stat & EV6__D_STAT__TPERR_P1)
+		printk("%s    Dcache tag parity error - pipe 1\n",
+		       err_print_prefix);
+	if (d_stat & EV6__D_STAT__ECC_ERR_ST)
+		printk("%s    ECC error occurred on a store\n", 
+		       err_print_prefix);
+	if (d_stat & EV6__D_STAT__ECC_ERR_LD)
+		printk("%s    ECC error occurred on a %s load\n",
+		       err_print_prefix,
+		       c_stat ? "" : "speculative ");
+	if (d_stat & EV6__D_STAT__SEO)
+		printk("%s    Dcache second error\n", err_print_prefix);
+
+	return status;
+}
+
+static int
+ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn, 
+	       u64 c_stat, u64 c_sts, int print)
+{
+	static const char * const sourcename[] = {
+		"UNKNOWN", "UNKNOWN", "UNKNOWN",
+		"MEMORY", "BCACHE", "DCACHE",
+		"BCACHE PROBE", "BCACHE PROBE"
+	};
+	static const char * const streamname[] = { "D", "I" };
+	static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
+	int status = MCHK_DISPOSITION_REPORT;
+	int source = -1, stream = -1, bits = -1;
+
+#define EV6__C_STAT__BC_PERR		(0x01)
+#define EV6__C_STAT__DC_PERR		(0x02)
+#define EV6__C_STAT__DSTREAM_MEM_ERR	(0x03)
+#define EV6__C_STAT__DSTREAM_BC_ERR	(0x04)
+#define EV6__C_STAT__DSTREAM_DC_ERR	(0x05)
+#define EV6__C_STAT__PROBE_BC_ERR0	(0x06)	/* both 6 and 7 indicate... */
+#define EV6__C_STAT__PROBE_BC_ERR1	(0x07)	/* ...probe bc error.       */
+#define EV6__C_STAT__ISTREAM_MEM_ERR	(0x0B)
+#define EV6__C_STAT__ISTREAM_BC_ERR	(0x0C)
+#define EV6__C_STAT__DSTREAM_MEM_DBL	(0x13)
+#define EV6__C_STAT__DSTREAM_BC_DBL	(0x14)
+#define EV6__C_STAT__ISTREAM_MEM_DBL	(0x1B)
+#define EV6__C_STAT__ISTREAM_BC_DBL	(0x1C)
+#define EV6__C_STAT__SOURCE_MEMORY	(0x03)
+#define EV6__C_STAT__SOURCE_BCACHE	(0x04)
+#define EV6__C_STAT__SOURCE__S		(0)
+#define EV6__C_STAT__SOURCE__M 		(0x07)
+#define EV6__C_STAT__ISTREAM__S		(3)
+#define EV6__C_STAT__ISTREAM__M		(0x01)
+#define EV6__C_STAT__DOUBLE__S		(4)
+#define EV6__C_STAT__DOUBLE__M		(0x01)
+#define EV6__C_STAT__ERRMASK		(0x1F)
+#define EV6__C_STS__SHARED		(1 << 0)
+#define EV6__C_STS__DIRTY		(1 << 1)
+#define EV6__C_STS__VALID		(1 << 2)
+#define EV6__C_STS__PARITY		(1 << 3)
+
+	if (!(c_stat & EV6__C_STAT__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	if (!print)
+		return status;
+
+	source = EXTRACT(c_stat, EV6__C_STAT__SOURCE);
+	stream = EXTRACT(c_stat, EV6__C_STAT__ISTREAM);
+	bits = EXTRACT(c_stat, EV6__C_STAT__DOUBLE);
+
+	if (c_stat & EV6__C_STAT__BC_PERR) {
+		printk("%s    Bcache tag parity error\n", err_print_prefix);
+		source = -1;
+	}
+
+	if (c_stat & EV6__C_STAT__DC_PERR) {
+		printk("%s    Dcache tag parity error\n", err_print_prefix);
+		source = -1;
+	}
+
+	if (c_stat == EV6__C_STAT__PROBE_BC_ERR0 ||
+	    c_stat == EV6__C_STAT__PROBE_BC_ERR1) {
+		printk("%s    Bcache single-bit error on a probe hit\n",
+		       err_print_prefix);
+		source = -1;
+	}
+
+	if (source != -1) 
+		printk("%s    %s-STREAM %s-BIT ECC error from %s\n",
+		       err_print_prefix,
+		       streamname[stream], bitsname[bits], sourcename[source]);
+
+	printk("%s    Address: 0x%016llx\n"
+	         "    Syndrome[upper.lower]: %02llx.%02llx\n",
+	       err_print_prefix,
+	       c_addr,
+	       c2_syn, c1_syn);
+
+	if (source == EV6__C_STAT__SOURCE_MEMORY ||
+	    source == EV6__C_STAT__SOURCE_BCACHE) 
+		printk("%s    Block status: %s%s%s%s\n",
+		       err_print_prefix,
+		       (c_sts & EV6__C_STS__SHARED) ? "SHARED " : "",
+		       (c_sts & EV6__C_STS__DIRTY)  ? "DIRTY "  : "",
+		       (c_sts & EV6__C_STS__VALID)  ? "VALID "  : "",
+		       (c_sts & EV6__C_STS__PARITY) ? "PARITY " : "");
+		
+	return status;
+}
+
+void
+ev6_register_error_handlers(void)
+{
+	/* None right now. */
+}
+
+int
+ev6_process_logout_frame(struct el_common *mchk_header, int print)
+{
+	struct el_common_EV6_mcheck *ev6mchk = 
+		(struct el_common_EV6_mcheck *)mchk_header;
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	status |= ev6_parse_ibox(ev6mchk->I_STAT, print);
+	status |= ev6_parse_mbox(ev6mchk->MM_STAT, ev6mchk->DC_STAT, 
+				 ev6mchk->C_STAT, print);
+	status |= ev6_parse_cbox(ev6mchk->C_ADDR, ev6mchk->DC1_SYNDROME,
+				 ev6mchk->DC0_SYNDROME, ev6mchk->C_STAT,
+				 ev6mchk->C_STS, print);
+
+	if (!print)
+		return status;
+
+	if (status != MCHK_DISPOSITION_DISMISS) {
+		char *saved_err_prefix = err_print_prefix;
+
+		/*
+		 * Dump some additional information from the frame
+		 */
+		printk("%s    EXC_ADDR: 0x%016lx   IER_CM: 0x%016lx"
+		            "   ISUM: 0x%016lx\n"
+		         "    PAL_BASE: 0x%016lx   I_CTL:  0x%016lx"
+		            "   PCTX: 0x%016lx\n",
+		       err_print_prefix,
+		       ev6mchk->EXC_ADDR, ev6mchk->IER_CM, ev6mchk->ISUM,
+		       ev6mchk->PAL_BASE, ev6mchk->I_CTL, ev6mchk->PCTX);
+
+		if (status == MCHK_DISPOSITION_UNKNOWN_ERROR) {
+			printk("%s    UNKNOWN error, frame follows:\n",
+			       err_print_prefix);
+		} else {
+			/* had decode -- downgrade print level for frame */
+			err_print_prefix = KERN_NOTICE;
+		}
+
+		mchk_dump_logout_frame(mchk_header);
+
+		err_print_prefix = saved_err_prefix;
+	}
+
+	return status;
+}
+
+void
+ev6_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_common *mchk_header = (struct el_common *)la_ptr;
+
+	/*
+	 * Sync the processor
+	 */
+	mb();
+	draina();
+
+	/*
+	 * Parse the logout frame without printing first. If the only error(s)
+	 * found are have a disposition of "dismiss", then just dismiss them
+	 * and don't print any message
+	 */
+	if (ev6_process_logout_frame(mchk_header, 0) != 
+	    MCHK_DISPOSITION_DISMISS) {
+		char *saved_err_prefix = err_print_prefix;
+		err_print_prefix = KERN_CRIT;
+
+		/*
+		 * Either a nondismissable error was detected or no
+		 * recognized error was detected  in the logout frame 
+		 * -- report the error in either case
+		 */
+		printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d:\n", 
+		       err_print_prefix,
+		       (vector == SCB_Q_PROCERR)?"Correctable":"Uncorrectable",
+		       (unsigned int)vector, (int)smp_processor_id());
+		
+		ev6_process_logout_frame(mchk_header, 1);
+		dik_show_regs(get_irq_regs(), NULL);
+
+		err_print_prefix = saved_err_prefix;
+	}
+
+	/* 
+	 * Release the logout frame 
+	 */
+	wrmces(0x7);
+	mb();
+}
+
diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c
new file mode 100644
index 000000000..565de1acf
--- /dev/null
+++ b/arch/alpha/kernel/err_ev7.c
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_ev7.c
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Error handling code supporting Alpha systems
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/hwrpb.h>
+#include <asm/smp.h>
+#include <asm/err_common.h>
+#include <asm/err_ev7.h>
+
+#include "err_impl.h"
+#include "proto.h"
+
+struct ev7_lf_subpackets *
+ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
+				    struct ev7_lf_subpackets *lf_subpackets)
+{
+	struct el_subpacket *subpacket;
+	int i;
+
+	/*
+	 * A Marvel machine check frame is always packaged in an
+	 * el_subpacket of class HEADER, type LOGOUT_FRAME.
+	 */
+	if (el_ptr->class != EL_CLASS__HEADER || 
+	    el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
+		return NULL;
+
+	/*
+	 * It is a logout frame header. Look at the one subpacket.
+	 */
+	el_ptr = (struct el_subpacket *)
+		((unsigned long)el_ptr + el_ptr->length);
+
+	/*
+	 * It has to be class PAL, type LOGOUT_FRAME.
+	 */
+	if (el_ptr->class != EL_CLASS__PAL ||
+	    el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
+		return NULL;
+
+	lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
+		el_ptr->by_type.raw.data_start;
+
+	/*
+	 * Process the subpackets.
+	 */
+	subpacket = (struct el_subpacket *)
+		((unsigned long)el_ptr + el_ptr->length);
+	for (i = 0;
+	     subpacket && i < lf_subpackets->logout->subpacket_count;
+	     subpacket = (struct el_subpacket *)
+		     ((unsigned long)subpacket + subpacket->length), i++) {
+		/*
+		 * All subpackets should be class PAL.
+		 */
+		if (subpacket->class != EL_CLASS__PAL) {
+			printk("%s**UNEXPECTED SUBPACKET CLASS %d "
+			       "IN LOGOUT FRAME (packet %d\n",
+			       err_print_prefix, subpacket->class, i);
+			return NULL;
+		}
+
+		/*
+		 * Remember the subpacket.
+		 */
+		switch(subpacket->type) {
+		case EL_TYPE__PAL__EV7_PROCESSOR:
+			lf_subpackets->ev7 =
+				(struct ev7_pal_processor_subpacket *)
+				subpacket->by_type.raw.data_start;
+			break;
+
+		case EL_TYPE__PAL__EV7_RBOX:
+			lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
+				subpacket->by_type.raw.data_start;
+			break;
+
+		case EL_TYPE__PAL__EV7_ZBOX:
+			lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
+				subpacket->by_type.raw.data_start;
+			break;
+
+		case EL_TYPE__PAL__EV7_IO:
+			lf_subpackets->io = (struct ev7_pal_io_subpacket *)
+				subpacket->by_type.raw.data_start;
+			break;
+
+		case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
+		case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
+		case EL_TYPE__PAL__ENV__VOLTAGE:
+		case EL_TYPE__PAL__ENV__INTRUSION:
+		case EL_TYPE__PAL__ENV__POWER_SUPPLY:
+		case EL_TYPE__PAL__ENV__LAN:
+		case EL_TYPE__PAL__ENV__HOT_PLUG:
+			lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
+ 				(struct ev7_pal_environmental_subpacket *)
+				subpacket->by_type.raw.data_start;
+			break;
+				
+		default:
+			/*
+			 * Don't know what kind of frame this is.
+			 */
+			return NULL;
+		}
+	}
+
+	return lf_subpackets;
+}
+
+void
+ev7_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
+	char *saved_err_prefix = err_print_prefix;
+
+	/*
+	 * Sync the processor
+	 */
+	mb();
+	draina();
+
+	err_print_prefix = KERN_CRIT;
+	printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
+	       err_print_prefix, 
+	       (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
+	       (unsigned int)vector, (int)smp_processor_id());
+	el_process_subpacket(el_ptr);
+	err_print_prefix = saved_err_prefix;
+
+	/* 
+	 * Release the logout frame 
+	 */
+	wrmces(0x7);
+	mb();
+}
+
+static char *el_ev7_processor_subpacket_annotation[] = {
+	"Subpacket Header",	"I_STAT",	"DC_STAT",
+	"C_ADDR",		"C_SYNDROME_1",	"C_SYNDROME_0",
+	"C_STAT",		"C_STS",	"MM_STAT",
+	"EXC_ADDR",		"IER_CM",	"ISUM",
+	"PAL_BASE",		"I_CTL",	"PROCESS_CONTEXT",
+	"CBOX_CTL",		"CBOX_STP_CTL",	"CBOX_ACC_CTL",
+	"CBOX_LCL_SET",		"CBOX_GLB_SET",	"BBOX_CTL",
+	"BBOX_ERR_STS",		"BBOX_ERR_IDX",	"CBOX_DDP_ERR_STS",
+	"BBOX_DAT_RMP",		NULL
+};
+
+static char *el_ev7_zbox_subpacket_annotation[] = {
+	"Subpacket Header", 	
+	"ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
+	"ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
+	"ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
+	"ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
+	"ZBOX(0): reserved          / DIFT_ERR_STATUS",
+	"ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
+	"ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
+	"ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
+	"ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
+	"ZBOX(1): reserved          / DIFT_ERR_STATUS",
+	"CBOX_CTL",		"CBOX_STP_CTL",
+	"ZBOX(0)_ERROR_PA",	"ZBOX(1)_ERROR_PA",
+	"ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
+	NULL
+};
+
+static char *el_ev7_rbox_subpacket_annotation[] = {
+	"Subpacket Header",	"RBOX_CFG",	"RBOX_N_CFG",
+	"RBOX_S_CFG",		"RBOX_E_CFG",	"RBOX_W_CFG",
+	"RBOX_N_ERR",		"RBOX_S_ERR",	"RBOX_E_ERR",
+	"RBOX_W_ERR",		"RBOX_IO_CFG",	"RBOX_IO_ERR",
+	"RBOX_L_ERR",		"RBOX_WHOAMI",	"RBOX_IMASL",
+	"RBOX_INTQ",		"RBOX_INT",	NULL
+};
+
+static char *el_ev7_io_subpacket_annotation[] = {
+	"Subpacket Header",	"IO_ASIC_REV",	"IO_SYS_REV",
+	"IO7_UPH",		"HPI_CTL",	"CRD_CTL",
+	"HEI_CTL",		"PO7_ERROR_SUM","PO7_UNCRR_SYM",
+	"PO7_CRRCT_SYM",	"PO7_UGBGE_SYM","PO7_ERR_PKT0",
+	"PO7_ERR_PKT1",		"reserved",	"reserved",
+	"PO0_ERR_SUM",		"PO0_TLB_ERR",	"PO0_SPL_COMPLT",
+	"PO0_TRANS_SUM",	"PO0_FIRST_ERR","PO0_MULT_ERR",
+	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
+	"DM CSR PH",		"reserved",
+	"PO1_ERR_SUM",		"PO1_TLB_ERR",	"PO1_SPL_COMPLT",
+	"PO1_TRANS_SUM",	"PO1_FIRST_ERR","PO1_MULT_ERR",
+	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
+	"DM CSR PH",		"reserved",
+	"PO2_ERR_SUM",		"PO2_TLB_ERR",	"PO2_SPL_COMPLT",
+	"PO2_TRANS_SUM",	"PO2_FIRST_ERR","PO2_MULT_ERR",
+	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
+	"DM CSR PH",		"reserved",
+	"PO3_ERR_SUM",		"PO3_TLB_ERR",	"PO3_SPL_COMPLT",
+	"PO3_TRANS_SUM",	"PO3_FIRST_ERR","PO3_MULT_ERR",
+	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
+	"DM CSR PH",		"reserved",	
+	NULL
+};
+	
+static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
+	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
+			     EL_TYPE__PAL__EV7_PROCESSOR,
+			     1,
+			     "EV7 Processor Subpacket",
+			     el_ev7_processor_subpacket_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
+			     EL_TYPE__PAL__EV7_ZBOX,
+			     1,
+			     "EV7 ZBOX Subpacket",
+			     el_ev7_zbox_subpacket_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
+			     EL_TYPE__PAL__EV7_RBOX,
+			     1,
+			     "EV7 RBOX Subpacket",
+			     el_ev7_rbox_subpacket_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
+			     EL_TYPE__PAL__EV7_IO,
+			     1,
+			     "EV7 IO Subpacket",
+			     el_ev7_io_subpacket_annotation)
+};
+
+static struct el_subpacket *
+ev7_process_pal_subpacket(struct el_subpacket *header)
+{
+	struct ev7_pal_subpacket *packet;
+
+	if (header->class != EL_CLASS__PAL) {
+		printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;
+	}
+
+	packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;
+
+	switch(header->type) {
+	case EL_TYPE__PAL__LOGOUT_FRAME:
+		printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n",
+		       err_print_prefix,
+		       packet->by_type.logout.whami, 
+		       packet->by_type.logout.rbox_whami);
+		el_print_timestamp(&packet->by_type.logout.timestamp);
+		printk("%s  EXC_ADDR: %016llx\n"
+		         "  HALT_CODE: %llx\n",
+		       err_print_prefix,
+		       packet->by_type.logout.exc_addr,
+		       packet->by_type.logout.halt_code);
+		el_process_subpackets(header,
+                                      packet->by_type.logout.subpacket_count);
+		break;
+	default:
+		printk("%s  ** PAL TYPE %d SUBPACKET\n", 
+		       err_print_prefix,
+		       header->type);
+		el_annotate_subpacket(header);
+		break;
+	}
+	
+	return (struct el_subpacket *)((unsigned long)header + header->length);
+}
+
+struct el_subpacket_handler ev7_pal_subpacket_handler =
+	SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);
+
+void __init
+ev7_register_error_handlers(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
+		cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);
+
+	cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
+}
+
diff --git a/arch/alpha/kernel/err_impl.h b/arch/alpha/kernel/err_impl.h
new file mode 100644
index 000000000..737b958a5
--- /dev/null
+++ b/arch/alpha/kernel/err_impl.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/arch/alpha/kernel/err_impl.h
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Contains declarations and macros to support Alpha error handling
+ * 	implementations.
+ */
+
+#include <asm/mce.h>
+
+union el_timestamp;
+struct el_subpacket;
+struct ev7_lf_subpackets;
+
+struct el_subpacket_annotation {
+	struct el_subpacket_annotation *next;
+	u16 class;
+	u16 type;
+	u16 revision;
+	char *description;
+	char **annotation;
+};
+#define SUBPACKET_ANNOTATION(c, t, r, d, a) {NULL, (c), (t), (r), (d), (a)}
+
+struct el_subpacket_handler {
+	struct el_subpacket_handler *next;
+	u16 class;
+	struct el_subpacket *(*handler)(struct el_subpacket *);
+};
+#define SUBPACKET_HANDLER_INIT(c, h) {NULL, (c), (h)}
+
+/*
+ * Manipulate a field from a register given it's name. defines
+ * for the LSB (__S - shift count) and bitmask (__M) are required
+ *
+ * EXTRACT(u, f) - extracts the field and places it at bit position 0
+ * GEN_MASK(f) - creates an in-position mask for the field
+ */
+#define EXTRACT(u, f) (((u) >> f##__S) & f##__M)
+#define GEN_MASK(f) ((u64)f##__M << f##__S)
+
+/*
+ * err_common.c
+ */
+extern char *err_print_prefix;
+
+extern void mchk_dump_mem(void *, size_t, char **);
+extern void mchk_dump_logout_frame(struct el_common *);
+extern void el_print_timestamp(union el_timestamp *);
+extern void el_process_subpackets(struct el_subpacket *, int);
+extern struct el_subpacket *el_process_subpacket(struct el_subpacket *);
+extern void el_annotate_subpacket(struct el_subpacket *);
+extern void cdl_check_console_data_log(void);
+extern int cdl_register_subpacket_annotation(struct el_subpacket_annotation *);
+extern int cdl_register_subpacket_handler(struct el_subpacket_handler *);
+
+/*
+ * err_ev7.c
+ */
+extern struct ev7_lf_subpackets *
+ev7_collect_logout_frame_subpackets(struct el_subpacket *,
+				    struct ev7_lf_subpackets *);
+extern void ev7_register_error_handlers(void);
+extern void ev7_machine_check(unsigned long, unsigned long);
+
+/*
+ * err_ev6.c
+ */
+extern void ev6_register_error_handlers(void);
+extern int ev6_process_logout_frame(struct el_common *, int);
+extern void ev6_machine_check(unsigned long, unsigned long);
+
+/*
+ * err_marvel.c
+ */
+extern void marvel_machine_check(unsigned long, unsigned long);
+extern void marvel_register_error_handlers(void);
+
+/*
+ * err_titan.c
+ */
+extern int titan_process_logout_frame(struct el_common *, int);
+extern void titan_machine_check(unsigned long, unsigned long);
+extern void titan_register_error_handlers(void);
+extern int privateer_process_logout_frame(struct el_common *, int);
+extern void privateer_machine_check(unsigned long, unsigned long);
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
new file mode 100644
index 000000000..c0c0ccefc
--- /dev/null
+++ b/arch/alpha/kernel/err_marvel.c
@@ -0,0 +1,1161 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_marvel.c
+ *
+ *	Copyright (C) 2001 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/console.h>
+#include <asm/core_marvel.h>
+#include <asm/hwrpb.h>
+#include <asm/smp.h>
+#include <asm/err_common.h>
+#include <asm/err_ev7.h>
+
+#include "err_impl.h"
+#include "proto.h"
+
+static void
+marvel_print_680_frame(struct ev7_lf_subpackets *lf_subpackets)
+{
+#ifdef CONFIG_VERBOSE_MCHECK
+	struct ev7_pal_environmental_subpacket *env;
+	struct { int type; char *name; } ev_packets[] = {
+		{ EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE,
+		  "Ambient Temperature" },
+		{ EL_TYPE__PAL__ENV__AIRMOVER_FAN,
+		  "AirMover / Fan" },
+		{ EL_TYPE__PAL__ENV__VOLTAGE,
+		  "Voltage" },
+		{ EL_TYPE__PAL__ENV__INTRUSION,
+		  "Intrusion" },
+		{ EL_TYPE__PAL__ENV__POWER_SUPPLY,
+		  "Power Supply" },
+		{ EL_TYPE__PAL__ENV__LAN,
+		  "LAN" },
+		{ EL_TYPE__PAL__ENV__HOT_PLUG,
+		  "Hot Plug" },
+		{ 0, NULL }
+	};
+	int i;
+
+	for (i = 0; ev_packets[i].type != 0; i++) {
+		env = lf_subpackets->env[ev7_lf_env_index(ev_packets[i].type)];
+		if (!env)
+			continue;
+
+		printk("%s**%s event (cabinet %d, drawer %d)\n",
+		       err_print_prefix,
+		       ev_packets[i].name,
+		       env->cabinet,
+		       env->drawer);
+		printk("%s   Module Type: 0x%x - Unit ID 0x%x - "
+		       "Condition 0x%x\n",
+		       err_print_prefix,
+		       env->module_type,
+		       env->unit_id,
+		       env->condition);
+	}
+#endif /* CONFIG_VERBOSE_MCHECK */
+}
+
+static int
+marvel_process_680_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
+{
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+	int i;
+
+	for (i = ev7_lf_env_index(EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE);
+	     i <= ev7_lf_env_index(EL_TYPE__PAL__ENV__HOT_PLUG);
+	     i++) {
+		if (lf_subpackets->env[i])
+			status = MCHK_DISPOSITION_REPORT;
+	}
+
+	if (print)
+		marvel_print_680_frame(lf_subpackets);
+
+	return status;
+}
+
+#ifdef CONFIG_VERBOSE_MCHECK
+
+static void
+marvel_print_err_cyc(u64 err_cyc)
+{
+	static char *packet_desc[] = {
+		"No Error",
+		"UNKNOWN",
+		"1 cycle (1 or 2 flit packet)",
+		"2 cycles (3 flit packet)",
+		"9 cycles (18 flit packet)",
+		"10 cycles (19 flit packet)",
+		"UNKNOWN",
+		"UNKNOWN",
+		"UNKNOWN"
+	};
+
+#define IO7__ERR_CYC__ODD_FLT	(1UL <<  0)
+#define IO7__ERR_CYC__EVN_FLT	(1UL <<  1)
+#define IO7__ERR_CYC__PACKET__S	(6)
+#define IO7__ERR_CYC__PACKET__M	(0x7)
+#define IO7__ERR_CYC__LOC	(1UL <<  5)
+#define IO7__ERR_CYC__CYCLE__S	(2)
+#define IO7__ERR_CYC__CYCLE__M	(0x7)
+
+	printk("%s        Packet In Error: %s\n"
+	       "%s        Error in %s, cycle %lld%s%s\n",
+	       err_print_prefix, 
+	       packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)],
+	       err_print_prefix,
+	       (err_cyc & IO7__ERR_CYC__LOC) ? "DATA" : "HEADER",
+	       EXTRACT(err_cyc, IO7__ERR_CYC__CYCLE),
+	       (err_cyc & IO7__ERR_CYC__ODD_FLT) ? " [ODD Flit]": "",
+	       (err_cyc & IO7__ERR_CYC__EVN_FLT) ? " [Even Flit]": "");
+}
+
+static void
+marvel_print_po7_crrct_sym(u64 crrct_sym)
+{
+#define IO7__PO7_CRRCT_SYM__SYN__S	(0)
+#define IO7__PO7_CRRCT_SYM__SYN__M	(0x7f)
+#define IO7__PO7_CRRCT_SYM__ERR_CYC__S	(7)   /* ERR_CYC + ODD_FLT + EVN_FLT */
+#define IO7__PO7_CRRCT_SYM__ERR_CYC__M	(0x1ff)
+
+
+	printk("%s      Correctable Error Symptoms:\n"
+	       "%s        Syndrome: 0x%llx\n",
+	       err_print_prefix,
+	       err_print_prefix, EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__SYN));
+	marvel_print_err_cyc(EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__ERR_CYC));
+}
+
+static void
+marvel_print_po7_uncrr_sym(u64 uncrr_sym, u64 valid_mask)
+{
+	static char *clk_names[] = { "_h[0]", "_h[1]", "_n[0]", "_n[1]" };
+	static char *clk_decode[] = {
+		"No Error",
+		"One extra rising edge",
+		"Two extra rising edges",
+		"Lost one clock"
+	};
+	static char *port_names[] = { "Port 0", 	"Port 1", 
+				      "Port 2", 	"Port 3",
+				      "Unknown Port",	"Unknown Port",
+				      "Unknown Port",	"Port 7" };
+	int scratch, i;
+
+#define IO7__PO7_UNCRR_SYM__SYN__S	    (0)
+#define IO7__PO7_UNCRR_SYM__SYN__M	    (0x7f)
+#define IO7__PO7_UNCRR_SYM__ERR_CYC__S	    (7)      /* ERR_CYC + ODD_FLT... */
+#define IO7__PO7_UNCRR_SYM__ERR_CYC__M	    (0x1ff)  /* ... + EVN_FLT        */
+#define IO7__PO7_UNCRR_SYM__CLK__S	    (16)
+#define IO7__PO7_UNCRR_SYM__CLK__M	    (0xff)
+#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ (1UL << 24)
+#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO (1UL << 25)
+#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO (1UL << 26)
+#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK (1UL << 27)
+#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK (1UL << 28)
+#define IO7__PO7_UNCRR_SYM__OVF__READIO	    (1UL << 29)
+#define IO7__PO7_UNCRR_SYM__OVF__WRITEIO    (1UL << 30)
+#define IO7__PO7_UNCRR_SYM__OVF__FWD        (1UL << 31)
+#define IO7__PO7_UNCRR_SYM__VICTIM_SP__S    (32)
+#define IO7__PO7_UNCRR_SYM__VICTIM_SP__M    (0xff)
+#define IO7__PO7_UNCRR_SYM__DETECT_SP__S    (40)
+#define IO7__PO7_UNCRR_SYM__DETECT_SP__M    (0xff)
+#define IO7__PO7_UNCRR_SYM__STRV_VTR__S     (48)
+#define IO7__PO7_UNCRR_SYM__STRV_VTR__M     (0x3ff)
+
+#define IO7__STRV_VTR__LSI__INTX__S	    (0)
+#define IO7__STRV_VTR__LSI__INTX__M	    (0x3)
+#define IO7__STRV_VTR__LSI__SLOT__S	    (2)
+#define IO7__STRV_VTR__LSI__SLOT__M	    (0x7)
+#define IO7__STRV_VTR__LSI__BUS__S	    (5)
+#define IO7__STRV_VTR__LSI__BUS__M	    (0x3)
+#define IO7__STRV_VTR__MSI__INTNUM__S	    (0)
+#define IO7__STRV_VTR__MSI__INTNUM__M	    (0x1ff)
+#define IO7__STRV_VTR__IS_MSI		    (1UL << 9)
+
+	printk("%s      Uncorrectable Error Symptoms:\n", err_print_prefix);
+	uncrr_sym &= valid_mask;
+
+	if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__SYN))
+		printk("%s        Syndrome: 0x%llx\n",
+		       err_print_prefix, 
+		       EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__SYN));
+
+	if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__ERR_CYC))
+		marvel_print_err_cyc(EXTRACT(uncrr_sym, 
+					     IO7__PO7_UNCRR_SYM__ERR_CYC));
+
+	scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__CLK);
+	for (i = 0; i < 4; i++, scratch >>= 2) {
+		if (scratch & 0x3)
+			printk("%s        Clock %s: %s\n",
+			       err_print_prefix,
+			       clk_names[i], clk_decode[scratch & 0x3]);
+	}
+
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ) 
+		printk("%s       REQ Credit Timeout or Overflow\n",
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO) 
+		printk("%s       RIO Credit Timeout or Overflow\n",
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO) 
+		printk("%s       WIO Credit Timeout or Overflow\n",
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK) 
+		printk("%s       BLK Credit Timeout or Overflow\n",
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK) 
+		printk("%s       NBK Credit Timeout or Overflow\n",
+		       err_print_prefix);
+
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__READIO) 
+		printk("%s       Read I/O Buffer Overflow\n", 
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__WRITEIO) 
+		printk("%s       Write I/O Buffer Overflow\n", 
+		       err_print_prefix);
+	if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__FWD) 
+		printk("%s       FWD Buffer Overflow\n", 
+		       err_print_prefix);
+
+	if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__VICTIM_SP))) {
+		int lost = scratch & (1UL << 4);
+		scratch &= ~lost;
+		for (i = 0; i < 8; i++, scratch >>= 1) {
+			if (!(scratch & 1))
+				continue;
+			printk("%s        Error Response sent to %s",
+			       err_print_prefix, port_names[i]);
+		}
+		if (lost)
+			printk("%s        Lost Error sent somewhere else\n",
+			       err_print_prefix);
+	}
+	
+	if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__DETECT_SP))) {
+		for (i = 0; i < 8; i++, scratch >>= 1) {
+			if (!(scratch & 1))
+				continue;
+			printk("%s        Error Reported by %s",
+			       err_print_prefix, port_names[i]);
+		}
+	}
+
+	if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__STRV_VTR)) {
+		char starvation_message[80];
+
+		scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__STRV_VTR);
+		if (scratch & IO7__STRV_VTR__IS_MSI) 
+			sprintf(starvation_message, 
+				"MSI Interrupt 0x%x",
+				EXTRACT(scratch, IO7__STRV_VTR__MSI__INTNUM));
+		else
+			sprintf(starvation_message,
+				"LSI INT%c for Bus:Slot (%d:%d)\n",
+				'A' + EXTRACT(scratch, 
+					      IO7__STRV_VTR__LSI__INTX),
+				EXTRACT(scratch, IO7__STRV_VTR__LSI__BUS),
+				EXTRACT(scratch, IO7__STRV_VTR__LSI__SLOT));
+
+		printk("%s        Starvation Int Trigger By: %s\n",
+		       err_print_prefix, starvation_message);
+	}
+}
+
+static void
+marvel_print_po7_ugbge_sym(u64 ugbge_sym)
+{
+	char opcode_str[10];
+
+#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__S	(6)
+#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__M	(0xfffffffful)
+#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__S	(40)
+#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__M	(0xff)
+#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__S	(48)
+#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__M	(0xf)
+#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__S	(52)
+#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__M	(0x7ff)
+#define IO7__PO7_UGBGE_SYM__VALID		(1UL << 63)
+
+	if (!(ugbge_sym & IO7__PO7_UGBGE_SYM__VALID))
+		return;
+
+	switch(EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) {
+	case 0x51:
+		sprintf(opcode_str, "Wr32");
+		break;
+	case 0x50:
+		sprintf(opcode_str, "WrQW");
+		break;
+	case 0x54:
+		sprintf(opcode_str, "WrIPR");
+		break;
+	case 0xD8:
+		sprintf(opcode_str, "Victim");
+		break;
+	case 0xC5:
+		sprintf(opcode_str, "BlkIO");
+		break;
+	default:
+		sprintf(opcode_str, "0x%llx\n",
+			EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE));
+		break;
+	}
+
+	printk("%s      Up Hose Garbage Symptom:\n"
+	       "%s        Source Port: %lld - Dest PID: %lld - OpCode: %s\n",
+	       err_print_prefix,
+	       err_print_prefix, 
+	       EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT),
+	       EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_DEST_PID),
+	       opcode_str);
+
+	if (0xC5 != EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE))
+		printk("%s        Packet Offset 0x%08llx\n",
+		       err_print_prefix,
+		       EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_PKT_OFF));
+}
+
+static void
+marvel_print_po7_err_sum(struct ev7_pal_io_subpacket *io)
+{
+	u64	uncrr_sym_valid = 0;
+
+#define IO7__PO7_ERRSUM__CR_SBE		(1UL << 32)
+#define IO7__PO7_ERRSUM__CR_SBE2	(1UL << 33)
+#define IO7__PO7_ERRSUM__CR_PIO_WBYTE	(1UL << 34)
+#define IO7__PO7_ERRSUM__CR_CSR_NXM	(1UL << 35)
+#define IO7__PO7_ERRSUM__CR_RPID_ACV	(1UL << 36)
+#define IO7__PO7_ERRSUM__CR_RSP_NXM	(1UL << 37)
+#define IO7__PO7_ERRSUM__CR_ERR_RESP	(1UL << 38)
+#define IO7__PO7_ERRSUM__CR_CLK_DERR	(1UL << 39)
+#define IO7__PO7_ERRSUM__CR_DAT_DBE	(1UL << 40)
+#define IO7__PO7_ERRSUM__CR_DAT_GRBG	(1UL << 41)
+#define IO7__PO7_ERRSUM__MAF_TO		(1UL << 42)
+#define IO7__PO7_ERRSUM__UGBGE		(1UL << 43)
+#define IO7__PO7_ERRSUM__UN_MAF_LOST	(1UL << 44)
+#define IO7__PO7_ERRSUM__UN_PKT_OVF	(1UL << 45)
+#define IO7__PO7_ERRSUM__UN_CDT_OVF	(1UL << 46)
+#define IO7__PO7_ERRSUM__UN_DEALLOC	(1UL << 47)
+#define IO7__PO7_ERRSUM__BH_CDT_TO	(1UL << 51)
+#define IO7__PO7_ERRSUM__BH_CLK_HDR	(1UL << 52)
+#define IO7__PO7_ERRSUM__BH_DBE_HDR	(1UL << 53)
+#define IO7__PO7_ERRSUM__BH_GBG_HDR	(1UL << 54)
+#define IO7__PO7_ERRSUM__BH_BAD_CMD	(1UL << 55)
+#define IO7__PO7_ERRSUM__HLT_INT	(1UL << 56)
+#define IO7__PO7_ERRSUM__HP_INT		(1UL << 57)
+#define IO7__PO7_ERRSUM__CRD_INT	(1UL << 58)
+#define IO7__PO7_ERRSUM__STV_INT	(1UL << 59)
+#define IO7__PO7_ERRSUM__HRD_INT	(1UL << 60)
+#define IO7__PO7_ERRSUM__BH_SUM		(1UL << 61)
+#define IO7__PO7_ERRSUM__ERR_LST	(1UL << 62)
+#define IO7__PO7_ERRSUM__ERR_VALID	(1UL << 63)
+
+#define IO7__PO7_ERRSUM__ERR_MASK	(IO7__PO7_ERRSUM__ERR_VALID |	\
+					 IO7__PO7_ERRSUM__CR_SBE)
+
+	/*
+	 * Single bit errors aren't covered by ERR_VALID.
+	 */
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE) {
+		printk("%s    %sSingle Bit Error(s) detected/corrected\n",
+		       err_print_prefix,
+		       (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE2) 
+		       ? "Multiple " : "");
+		marvel_print_po7_crrct_sym(io->po7_crrct_sym);
+	}
+
+	/*
+	 * Neither are the interrupt status bits
+	 */
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__HLT_INT)
+		printk("%s    Halt Interrupt posted", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__HP_INT) {
+		printk("%s    Hot Plug Event Interrupt posted", 
+		       err_print_prefix);
+		uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP);
+	}
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CRD_INT)
+		printk("%s    Correctable Error Interrupt posted", 
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__STV_INT) {
+		printk("%s    Starvation Interrupt posted", err_print_prefix);
+		uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__STRV_VTR);
+	}
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__HRD_INT) {
+		printk("%s    Hard Error Interrupt posted", err_print_prefix);
+		uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP);
+	}
+
+	/*
+	 * Everything else is valid only with ERR_VALID, so skip to the end
+	 * (uncrr_sym check) unless ERR_VALID is set.
+	 */
+	if (!(io->po7_error_sum & IO7__PO7_ERRSUM__ERR_VALID)) 
+		goto check_uncrr_sym;
+
+	/*
+	 * Since ERR_VALID is set, VICTIM_SP in uncrr_sym is valid.
+	 * For bits [29:0] to also be valid, the following bits must
+	 * not be set:
+	 *	CR_PIO_WBYTE	CR_CSR_NXM	CR_RSP_NXM
+	 *	CR_ERR_RESP	MAF_TO
+	 */
+	uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__VICTIM_SP);
+	if (!(io->po7_error_sum & (IO7__PO7_ERRSUM__CR_PIO_WBYTE |
+				   IO7__PO7_ERRSUM__CR_CSR_NXM |
+				   IO7__PO7_ERRSUM__CR_RSP_NXM |
+				   IO7__PO7_ERRSUM__CR_ERR_RESP |
+				   IO7__PO7_ERRSUM__MAF_TO)))
+		uncrr_sym_valid |= 0x3ffffffful;
+
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_PIO_WBYTE)
+		printk("%s    Write byte into IO7 CSR\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CSR_NXM)
+		printk("%s    PIO to non-existent CSR\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RPID_ACV)
+		printk("%s    Bus Requester PID (Access Violation)\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RSP_NXM)
+		printk("%s    Received NXM response from EV7\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_ERR_RESP)
+		printk("%s    Received ERROR RESPONSE\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CLK_DERR)
+		printk("%s    Clock error on data flit\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_DBE)
+		printk("%s    Double Bit Error Data Error Detected\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_GRBG)
+		printk("%s    Garbage Encoding Detected on the data\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__UGBGE) {
+		printk("%s    Garbage Encoding sent up hose\n",
+		       err_print_prefix);
+		marvel_print_po7_ugbge_sym(io->po7_ugbge_sym);
+	}
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_MAF_LOST)
+		printk("%s    Orphan response (unexpected response)\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_PKT_OVF)
+		printk("%s    Down hose packet overflow\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_CDT_OVF)
+		printk("%s    Down hose credit overflow\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_DEALLOC)
+		printk("%s    Unexpected or bad dealloc field\n",
+		       err_print_prefix);
+
+	/*
+	 * The black hole events.
+	 */
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__MAF_TO)
+		printk("%s    BLACK HOLE: Timeout for all responses\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CDT_TO)
+		printk("%s    BLACK HOLE: Credit Timeout\n", err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CLK_HDR)
+		printk("%s    BLACK HOLE: Clock check on header\n", 
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_DBE_HDR)
+		printk("%s    BLACK HOLE: Uncorrectable Error on header\n",
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_GBG_HDR)
+		printk("%s    BLACK HOLE: Garbage on header\n", 
+		       err_print_prefix);
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_BAD_CMD)
+		printk("%s    BLACK HOLE: Bad EV7 command\n", 
+		       err_print_prefix);
+
+	if (io->po7_error_sum & IO7__PO7_ERRSUM__ERR_LST) 
+		printk("%s    Lost Error\n", err_print_prefix);
+
+	printk("%s    Failing Packet:\n"
+	       "%s      Cycle 1: %016llx\n"
+	       "%s      Cycle 2: %016llx\n",
+	       err_print_prefix,
+	       err_print_prefix, io->po7_err_pkt0,
+	       err_print_prefix, io->po7_err_pkt1);
+	/*
+	 * If there are any valid bits in UNCRR sym for this err, 
+	 * print UNCRR_SYM as well.
+	 */
+check_uncrr_sym:
+	if (uncrr_sym_valid)
+		marvel_print_po7_uncrr_sym(io->po7_uncrr_sym, uncrr_sym_valid);
+}
+
+static void
+marvel_print_pox_tlb_err(u64 tlb_err)
+{
+	static char *tlb_errors[] = {
+		"No Error",
+		"North Port Signaled Error fetching TLB entry",
+		"PTE invalid or UCC or GBG error on this entry",
+		"Address did not hit any DMA window"
+	};
+
+#define IO7__POX_TLBERR__ERR_VALID		(1UL << 63)
+#define IO7__POX_TLBERR__ERRCODE__S		(0)
+#define IO7__POX_TLBERR__ERRCODE__M		(0x3)
+#define IO7__POX_TLBERR__ERR_TLB_PTR__S		(3)
+#define IO7__POX_TLBERR__ERR_TLB_PTR__M		(0x7)
+#define IO7__POX_TLBERR__FADDR__S		(6)
+#define IO7__POX_TLBERR__FADDR__M		(0x3fffffffffful)
+
+	if (!(tlb_err & IO7__POX_TLBERR__ERR_VALID))
+		return;
+
+	printk("%s      TLB Error on index 0x%llx:\n"
+	       "%s        - %s\n"
+	       "%s        - Addr: 0x%016llx\n",
+	       err_print_prefix,
+	       EXTRACT(tlb_err, IO7__POX_TLBERR__ERR_TLB_PTR),
+	       err_print_prefix,
+	       tlb_errors[EXTRACT(tlb_err, IO7__POX_TLBERR__ERRCODE)],
+	       err_print_prefix,
+	       EXTRACT(tlb_err, IO7__POX_TLBERR__FADDR) << 6);
+}
+
+static  void
+marvel_print_pox_spl_cmplt(u64 spl_cmplt)
+{
+	char message[80];
+
+#define IO7__POX_SPLCMPLT__MESSAGE__S		(0)
+#define IO7__POX_SPLCMPLT__MESSAGE__M		(0x0fffffffful)
+#define IO7__POX_SPLCMPLT__SOURCE_BUS__S	(40)
+#define IO7__POX_SPLCMPLT__SOURCE_BUS__M	(0xfful)
+#define IO7__POX_SPLCMPLT__SOURCE_DEV__S	(35)
+#define IO7__POX_SPLCMPLT__SOURCE_DEV__M	(0x1ful)
+#define IO7__POX_SPLCMPLT__SOURCE_FUNC__S	(32)
+#define IO7__POX_SPLCMPLT__SOURCE_FUNC__M	(0x07ul)
+
+#define IO7__POX_SPLCMPLT__MSG_CLASS__S		(28)
+#define IO7__POX_SPLCMPLT__MSG_CLASS__M		(0xf)
+#define IO7__POX_SPLCMPLT__MSG_INDEX__S		(20)
+#define IO7__POX_SPLCMPLT__MSG_INDEX__M		(0xff)
+#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__S	(20)
+#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__M    (0xfff)
+#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__S	(12)
+#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__M	(0x7f)
+#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__S	(0)
+#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M	(0xfff)
+
+	printk("%s      Split Completion Error:\n"	
+	       "%s         Source (Bus:Dev:Func): %lld:%lld:%lld\n",
+	       err_print_prefix,
+	       err_print_prefix,
+	       EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS),
+	       EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_DEV),
+	       EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_FUNC));
+
+	switch(EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MSG_CLASSINDEX)) {
+	case 0x000:
+		sprintf(message, "Normal completion");
+		break;
+	case 0x100:
+		sprintf(message, "Bridge - Master Abort");
+		break;
+	case 0x101:
+		sprintf(message, "Bridge - Target Abort");
+		break;
+	case 0x102:
+		sprintf(message, "Bridge - Uncorrectable Write Data Error");
+		break;
+	case 0x200:
+		sprintf(message, "Byte Count Out of Range");
+		break;
+	case 0x201:
+		sprintf(message, "Uncorrectable Split Write Data Error");
+		break;
+	default:
+		sprintf(message, "%08llx\n",
+			EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MESSAGE));
+		break;
+	}
+	printk("%s	   Message: %s\n", err_print_prefix, message);
+}
+
+static void
+marvel_print_pox_trans_sum(u64 trans_sum)
+{
+	static const char * const pcix_cmd[] = {
+		"Interrupt Acknowledge",
+		"Special Cycle",
+		"I/O Read",
+		"I/O Write",
+		"Reserved",
+		"Reserved / Device ID Message",
+		"Memory Read",
+		"Memory Write",
+		"Reserved / Alias to Memory Read Block",
+		"Reserved / Alias to Memory Write Block",
+		"Configuration Read",
+		"Configuration Write",
+		"Memory Read Multiple / Split Completion",
+		"Dual Address Cycle",
+		"Memory Read Line / Memory Read Block",
+		"Memory Write and Invalidate / Memory Write Block"
+	};
+
+#define IO7__POX_TRANSUM__PCI_ADDR__S		(0)
+#define IO7__POX_TRANSUM__PCI_ADDR__M		(0x3fffffffffffful)
+#define IO7__POX_TRANSUM__DAC			(1UL << 50)
+#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__S	(52)
+#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__M	(0xf)
+#define IO7__POX_TRANSUM__PCIX_CMD__S		(56)
+#define IO7__POX_TRANSUM__PCIX_CMD__M		(0xf)
+#define IO7__POX_TRANSUM__ERR_VALID		(1UL << 63)
+
+	if (!(trans_sum & IO7__POX_TRANSUM__ERR_VALID))
+		return;
+
+	printk("%s      Transaction Summary:\n"
+	       "%s        Command: 0x%llx - %s\n"
+	       "%s        Address: 0x%016llx%s\n"
+	       "%s        PCI-X Master Slot: 0x%llx\n",
+	       err_print_prefix, 
+	       err_print_prefix, 
+	       EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD),
+	       pcix_cmd[EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD)],
+	       err_print_prefix,
+	       EXTRACT(trans_sum, IO7__POX_TRANSUM__PCI_ADDR),
+	       (trans_sum & IO7__POX_TRANSUM__DAC) ? " (DAC)" : "",
+	       err_print_prefix,
+	       EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_MASTER_SLOT));
+}
+
+static void
+marvel_print_pox_err(u64 err_sum, struct ev7_pal_io_one_port *port)
+{
+#define IO7__POX_ERRSUM__AGP_REQQ_OVFL    (1UL <<  4)
+#define IO7__POX_ERRSUM__AGP_SYNC_ERR     (1UL <<  5)
+#define IO7__POX_ERRSUM__MRETRY_TO        (1UL <<  6)
+#define IO7__POX_ERRSUM__PCIX_UX_SPL      (1UL <<  7)
+#define IO7__POX_ERRSUM__PCIX_SPLIT_TO    (1UL <<  8)
+#define IO7__POX_ERRSUM__PCIX_DISCARD_SPL (1UL <<  9)
+#define IO7__POX_ERRSUM__DMA_RD_TO        (1UL << 10)
+#define IO7__POX_ERRSUM__CSR_NXM_RD       (1UL << 11)
+#define IO7__POX_ERRSUM__CSR_NXM_WR       (1UL << 12)
+#define IO7__POX_ERRSUM__DMA_TO           (1UL << 13)
+#define IO7__POX_ERRSUM__ALL_MABORTS      (1UL << 14)
+#define IO7__POX_ERRSUM__MABORT		  (1UL << 15)
+#define IO7__POX_ERRSUM__MABORT_MASK	  (IO7__POX_ERRSUM__ALL_MABORTS|\
+					   IO7__POX_ERRSUM__MABORT)
+#define IO7__POX_ERRSUM__PT_TABORT        (1UL << 16)
+#define IO7__POX_ERRSUM__PM_TABORT        (1UL << 17)
+#define IO7__POX_ERRSUM__TABORT_MASK      (IO7__POX_ERRSUM__PT_TABORT | \
+                                           IO7__POX_ERRSUM__PM_TABORT)
+#define IO7__POX_ERRSUM__SERR             (1UL << 18)
+#define IO7__POX_ERRSUM__ADDRERR_STB      (1UL << 19)
+#define IO7__POX_ERRSUM__DETECTED_SERR    (1UL << 20)
+#define IO7__POX_ERRSUM__PERR             (1UL << 21)
+#define IO7__POX_ERRSUM__DATAERR_STB_NIOW (1UL << 22)
+#define IO7__POX_ERRSUM__DETECTED_PERR    (1UL << 23)
+#define IO7__POX_ERRSUM__PM_PERR          (1UL << 24)
+#define IO7__POX_ERRSUM__PT_SCERROR       (1UL << 26)
+#define IO7__POX_ERRSUM__HUNG_BUS         (1UL << 28)
+#define IO7__POX_ERRSUM__UPE_ERROR__S     (51)
+#define IO7__POX_ERRSUM__UPE_ERROR__M     (0xffUL)
+#define IO7__POX_ERRSUM__UPE_ERROR        GEN_MASK(IO7__POX_ERRSUM__UPE_ERROR)
+#define IO7__POX_ERRSUM__TLB_ERR          (1UL << 59)
+#define IO7__POX_ERRSUM__ERR_VALID        (1UL << 63)
+
+#define IO7__POX_ERRSUM__TRANS_SUM__MASK  (IO7__POX_ERRSUM__MRETRY_TO |       \
+					   IO7__POX_ERRSUM__PCIX_UX_SPL |     \
+					   IO7__POX_ERRSUM__PCIX_SPLIT_TO |   \
+					   IO7__POX_ERRSUM__DMA_TO |          \
+					   IO7__POX_ERRSUM__MABORT_MASK |     \
+					   IO7__POX_ERRSUM__TABORT_MASK |     \
+					   IO7__POX_ERRSUM__SERR |            \
+					   IO7__POX_ERRSUM__ADDRERR_STB |     \
+					   IO7__POX_ERRSUM__PERR |            \
+					   IO7__POX_ERRSUM__DATAERR_STB_NIOW |\
+					   IO7__POX_ERRSUM__DETECTED_PERR |   \
+					   IO7__POX_ERRSUM__PM_PERR |         \
+					   IO7__POX_ERRSUM__PT_SCERROR |      \
+					   IO7__POX_ERRSUM__UPE_ERROR)
+
+	if (!(err_sum & IO7__POX_ERRSUM__ERR_VALID))
+		return;
+
+	/*
+	 * First the transaction summary errors
+	 */
+	if (err_sum & IO7__POX_ERRSUM__MRETRY_TO)
+		printk("%s    IO7 Master Retry Timeout expired\n",
+		       err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PCIX_UX_SPL)
+		printk("%s    Unexpected Split Completion\n",
+		       err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PCIX_SPLIT_TO)
+		printk("%s    IO7 Split Completion Timeout expired\n",
+		       err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__DMA_TO)
+		printk("%s    Hung bus during DMA transaction\n",
+		       err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__MABORT_MASK)
+		printk("%s    Master Abort\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PT_TABORT)
+		printk("%s    IO7 Asserted Target Abort\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PM_TABORT)
+		printk("%s    IO7 Received Target Abort\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__ADDRERR_STB) {
+		printk("%s    Address or PCI-X Attribute Parity Error\n", 
+		       err_print_prefix);
+		if (err_sum & IO7__POX_ERRSUM__SERR)
+			printk("%s     IO7 Asserted SERR\n", err_print_prefix);
+	}
+	if (err_sum & IO7__POX_ERRSUM__PERR) {
+		if (err_sum & IO7__POX_ERRSUM__DATAERR_STB_NIOW)
+			printk("%s    IO7 Detected Data Parity Error\n",
+			       err_print_prefix);
+		else
+			printk("%s    Split Completion Response with "
+			       "Parity Error\n", err_print_prefix);
+	}
+	if (err_sum & IO7__POX_ERRSUM__DETECTED_PERR)
+		printk("%s    PERR detected\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PM_PERR)
+		printk("%s    PERR while IO7 is master\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PT_SCERROR) {
+		printk("%s    IO7 Received Split Completion Error message\n",
+		       err_print_prefix);
+		marvel_print_pox_spl_cmplt(port->pox_spl_cmplt);
+	}
+	if (err_sum & IO7__POX_ERRSUM__UPE_ERROR) {
+		unsigned int upe_error = EXTRACT(err_sum,
+						 IO7__POX_ERRSUM__UPE_ERROR);
+		int i;
+		static char *upe_errors[] = {
+			"Parity Error on MSI write data",
+			"MSI read (MSI window is write only",
+			"TLB - Invalid WR transaction",
+			"TLB - Invalid RD transaction",
+			"DMA - WR error (see north port)",
+			"DMA - RD error (see north port)",
+			"PPR - WR error (see north port)",
+			"PPR - RD error (see north port)"
+		};
+
+		printk("%s    UPE Error:\n", err_print_prefix);
+		for (i = 0; i < 8; i++) {
+			if (upe_error & (1 << i))
+				printk("%s      %s\n", err_print_prefix,
+				       upe_errors[i]);
+		}
+	}
+
+	/*
+	 * POx_TRANS_SUM, if appropriate.
+	 */
+	if (err_sum & IO7__POX_ERRSUM__TRANS_SUM__MASK) 
+		marvel_print_pox_trans_sum(port->pox_trans_sum);
+
+	/*
+	 * Then TLB_ERR.
+	 */
+	if (err_sum & IO7__POX_ERRSUM__TLB_ERR) {
+		printk("%s    TLB ERROR\n", err_print_prefix);
+		marvel_print_pox_tlb_err(port->pox_tlb_err);
+	}
+
+	/*
+	 * And the single bit status errors.
+	 */
+	if (err_sum & IO7__POX_ERRSUM__AGP_REQQ_OVFL)
+		printk("%s    AGP Request Queue Overflow\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__AGP_SYNC_ERR)
+		printk("%s    AGP Sync Error\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__PCIX_DISCARD_SPL)
+		printk("%s    Discarded split completion\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__DMA_RD_TO)
+		printk("%s    DMA Read Timeout\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__CSR_NXM_RD)
+		printk("%s    CSR NXM READ\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__CSR_NXM_WR)
+		printk("%s    CSR NXM WRITE\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__DETECTED_SERR)
+		printk("%s    SERR detected\n", err_print_prefix);
+	if (err_sum & IO7__POX_ERRSUM__HUNG_BUS)
+		printk("%s    HUNG BUS detected\n", err_print_prefix);
+}
+
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+static struct ev7_pal_io_subpacket *
+marvel_find_io7_with_error(struct ev7_lf_subpackets *lf_subpackets)
+{
+	struct ev7_pal_io_subpacket *io = lf_subpackets->io;
+	struct io7 *io7;
+	int i;
+
+	/*
+	 * Caller must provide the packet to fill
+	 */
+	if (!io)
+		return NULL;
+
+	/*
+	 * Fill the subpacket with the console's standard fill pattern
+	 */
+	memset(io, 0x55, sizeof(*io));
+
+	for (io7 = NULL; NULL != (io7 = marvel_next_io7(io7)); ) {
+		unsigned long err_sum = 0;
+
+		err_sum |= io7->csrs->PO7_ERROR_SUM.csr;
+		for (i = 0; i < IO7_NUM_PORTS; i++) {
+			if (!io7->ports[i].enabled)
+				continue;
+			err_sum |= io7->ports[i].csrs->POx_ERR_SUM.csr;
+		}
+
+		/*
+		 * Is there at least one error? 
+		 */
+		if (err_sum & (1UL << 63))
+			break;
+	}
+
+	/*
+	 * Did we find an IO7 with an error?
+	 */
+	if (!io7)
+		return NULL;
+
+	/*
+	 * We have an IO7 with an error. 
+	 *
+	 * Fill in the IO subpacket.
+	 */
+	io->io_asic_rev   = io7->csrs->IO_ASIC_REV.csr;
+	io->io_sys_rev    = io7->csrs->IO_SYS_REV.csr;
+	io->io7_uph       = io7->csrs->IO7_UPH.csr;
+	io->hpi_ctl       = io7->csrs->HPI_CTL.csr;
+	io->crd_ctl       = io7->csrs->CRD_CTL.csr;
+	io->hei_ctl       = io7->csrs->HEI_CTL.csr;
+	io->po7_error_sum = io7->csrs->PO7_ERROR_SUM.csr;
+	io->po7_uncrr_sym = io7->csrs->PO7_UNCRR_SYM.csr;
+	io->po7_crrct_sym = io7->csrs->PO7_CRRCT_SYM.csr;
+	io->po7_ugbge_sym = io7->csrs->PO7_UGBGE_SYM.csr;
+	io->po7_err_pkt0  = io7->csrs->PO7_ERR_PKT[0].csr;
+	io->po7_err_pkt1  = io7->csrs->PO7_ERR_PKT[1].csr;
+	
+	for (i = 0; i < IO7_NUM_PORTS; i++) {
+		io7_ioport_csrs *csrs = io7->ports[i].csrs;
+
+		if (!io7->ports[i].enabled)
+			continue;
+
+		io->ports[i].pox_err_sum   = csrs->POx_ERR_SUM.csr;
+		io->ports[i].pox_tlb_err   = csrs->POx_TLB_ERR.csr;
+		io->ports[i].pox_spl_cmplt = csrs->POx_SPL_COMPLT.csr;
+		io->ports[i].pox_trans_sum = csrs->POx_TRANS_SUM.csr;
+		io->ports[i].pox_first_err = csrs->POx_FIRST_ERR.csr;
+		io->ports[i].pox_mult_err  = csrs->POx_MULT_ERR.csr;
+		io->ports[i].pox_dm_source = csrs->POx_DM_SOURCE.csr;
+		io->ports[i].pox_dm_dest   = csrs->POx_DM_DEST.csr;
+		io->ports[i].pox_dm_size   = csrs->POx_DM_SIZE.csr;
+		io->ports[i].pox_dm_ctrl   = csrs->POx_DM_CTRL.csr;
+
+		/*
+		 * Ack this port's errors, if any. POx_ERR_SUM must be last.
+		 *
+		 * Most of the error registers get cleared and unlocked when
+		 * the associated bits in POx_ERR_SUM are cleared (by writing
+		 * 1). POx_TLB_ERR is an exception and must be explicitly 
+		 * cleared.
+		 */
+		csrs->POx_TLB_ERR.csr = io->ports[i].pox_tlb_err;
+		csrs->POx_ERR_SUM.csr =	io->ports[i].pox_err_sum;
+		mb();
+		csrs->POx_ERR_SUM.csr;		
+	}
+
+	/*
+	 * Ack any port 7 error(s).
+	 */
+	io7->csrs->PO7_ERROR_SUM.csr = io->po7_error_sum;
+	mb();
+	io7->csrs->PO7_ERROR_SUM.csr;
+	
+	/*
+	 * Correct the io7_pid.
+	 */
+	lf_subpackets->io_pid = io7->pe;
+
+	return io;
+}
+
+static int
+marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print)
+{
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	struct ev7_pal_io_subpacket *io = lf_subpackets->io;
+	int i;
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+#define MARVEL_IO_ERR_VALID(x)  ((x) & (1UL << 63))
+
+	if (!lf_subpackets->logout || !lf_subpackets->io)
+		return status;
+
+	/*
+	 * The PALcode only builds an IO subpacket if there is a 
+	 * locally connected IO7. In the cases of
+	 *	1) a uniprocessor kernel
+	 *	2) an mp kernel before the local secondary has called in
+	 * error interrupts are all directed to the primary processor.
+	 * In that case, we may not have an IO subpacket at all and, event
+	 * if we do, it may not be the right now. 
+	 *
+	 * If the RBOX indicates an I/O error interrupt, make sure we have
+	 * the correct IO7 information. If we don't have an IO subpacket
+	 * or it's the wrong one, try to find the right one.
+	 *
+	 * RBOX I/O error interrupts are indicated by RBOX_INT<29> and
+	 * RBOX_INT<10>.
+	 */
+	if ((lf_subpackets->io->po7_error_sum & (1UL << 32)) ||
+	    ((lf_subpackets->io->po7_error_sum        |
+	      lf_subpackets->io->ports[0].pox_err_sum |
+	      lf_subpackets->io->ports[1].pox_err_sum |
+	      lf_subpackets->io->ports[2].pox_err_sum |
+	      lf_subpackets->io->ports[3].pox_err_sum) & (1UL << 63))) {
+		/*
+		 * Either we have no IO subpacket or no error is
+		 * indicated in the one we do have. Try find the
+		 * one with the error.
+		 */
+		if (!marvel_find_io7_with_error(lf_subpackets))
+			return status;
+	}
+
+	/*
+	 * We have an IO7 indicating an error - we're going to report it
+	 */
+	status = MCHK_DISPOSITION_REPORT;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+
+	if (!print)
+		return status;
+
+	printk("%s*Error occurred on IO7 at PID %u\n", 
+	       err_print_prefix, lf_subpackets->io_pid);
+
+	/*
+	 * Check port 7 first
+	 */
+	if (lf_subpackets->io->po7_error_sum & IO7__PO7_ERRSUM__ERR_MASK) {
+		marvel_print_po7_err_sum(io);
+
+#if 0
+		printk("%s  PORT 7 ERROR:\n"
+		       "%s    PO7_ERROR_SUM: %016llx\n"
+		       "%s    PO7_UNCRR_SYM: %016llx\n"
+		       "%s    PO7_CRRCT_SYM: %016llx\n"
+		       "%s    PO7_UGBGE_SYM: %016llx\n"
+		       "%s    PO7_ERR_PKT0:  %016llx\n"
+		       "%s    PO7_ERR_PKT1:  %016llx\n",
+		       err_print_prefix,
+		       err_print_prefix, io->po7_error_sum,
+		       err_print_prefix, io->po7_uncrr_sym,
+		       err_print_prefix, io->po7_crrct_sym,
+		       err_print_prefix, io->po7_ugbge_sym,
+		       err_print_prefix, io->po7_err_pkt0,
+		       err_print_prefix, io->po7_err_pkt1);
+#endif
+	}
+
+	/*
+	 * Then loop through the ports
+	 */
+	for (i = 0; i < IO7_NUM_PORTS; i++) {
+		if (!MARVEL_IO_ERR_VALID(io->ports[i].pox_err_sum))
+			continue;
+
+		printk("%s  PID %u PORT %d POx_ERR_SUM: %016llx\n",
+		       err_print_prefix, 
+		       lf_subpackets->io_pid, i, io->ports[i].pox_err_sum);
+		marvel_print_pox_err(io->ports[i].pox_err_sum, &io->ports[i]);
+
+		printk("%s  [ POx_FIRST_ERR: %016llx ]\n",
+		       err_print_prefix, io->ports[i].pox_first_err);
+		marvel_print_pox_err(io->ports[i].pox_first_err, 
+				     &io->ports[i]);
+
+	}
+
+
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}
+
+static int
+marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
+{
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	/*
+	 * I/O error? 
+	 */
+#define EV7__RBOX_INT__IO_ERROR__MASK 0x20000400ul
+	if (lf_subpackets->logout &&
+	    (lf_subpackets->logout->rbox_int & 0x20000400ul))
+		status = marvel_process_io_error(lf_subpackets, print);
+
+	/*
+	 * Probing behind PCI-X bridges can cause machine checks on
+	 * Marvel when the probe is handled by the bridge as a split
+	 * completion transaction. The symptom is an ERROR_RESPONSE 
+	 * to a CONFIG address. Since these errors will happen in
+	 * normal operation, dismiss them.
+	 *
+	 * Dismiss if:
+	 *	C_STAT		= 0x14 		(Error Response)
+	 *	C_STS<3>	= 0    		(C_ADDR valid)
+	 *	C_ADDR<42>	= 1    		(I/O)
+	 *	C_ADDR<31:22>	= 111110xxb	(PCI Config space)
+	 */
+	if (lf_subpackets->ev7 &&
+	    (lf_subpackets->ev7->c_stat == 0x14) &&
+	    !(lf_subpackets->ev7->c_sts & 0x8) &&
+	    ((lf_subpackets->ev7->c_addr & 0x400ff000000ul) 
+	     == 0x400fe000000ul))
+		status = MCHK_DISPOSITION_DISMISS;
+
+	return status;
+}
+
+void
+marvel_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
+	int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL;
+	struct ev7_lf_subpackets subpacket_collection = { NULL, };
+	struct ev7_pal_io_subpacket scratch_io_packet = { 0, };
+	struct ev7_lf_subpackets *lf_subpackets = NULL;
+	int disposition = MCHK_DISPOSITION_UNKNOWN_ERROR;
+	char *saved_err_prefix = err_print_prefix;
+	char *error_type = NULL;
+
+	/*
+	 * Sync the processor
+	 */
+	mb();
+	draina();
+
+	switch(vector) {
+	case SCB_Q_SYSEVENT:
+		process_frame = marvel_process_680_frame;
+		error_type = "System Event";
+		break;
+
+	case SCB_Q_SYSMCHK:
+		process_frame = marvel_process_logout_frame;
+		error_type = "System Uncorrectable Error";
+		break;
+
+	case SCB_Q_SYSERR:
+		process_frame = marvel_process_logout_frame;
+		error_type = "System Correctable Error";
+		break;
+
+	default:
+		/* Don't know it - pass it up.  */
+		ev7_machine_check(vector, la_ptr);
+		return;
+	}	
+
+	/*
+	 * A system event or error has occurred, handle it here.
+	 *
+	 * Any errors in the logout frame have already been cleared by the
+	 * PALcode, so just parse it.
+	 */
+	err_print_prefix = KERN_CRIT;
+
+	/* 
+	 * Parse the logout frame without printing first. If the only error(s)
+	 * found are classified as "dismissable", then just dismiss them and
+	 * don't print any message
+	 */
+	lf_subpackets = 
+		ev7_collect_logout_frame_subpackets(el_ptr,
+						    &subpacket_collection);
+	if (process_frame && lf_subpackets && lf_subpackets->logout) {
+		/*
+		 * We might not have the correct (or any) I/O subpacket.
+		 * [ See marvel_process_io_error() for explanation. ]
+		 * If we don't have one, point the io subpacket in
+		 * lf_subpackets at scratch_io_packet so that 
+		 * marvel_find_io7_with_error() will have someplace to
+		 * store the info.
+		 */
+		if (!lf_subpackets->io)
+			lf_subpackets->io = &scratch_io_packet;
+
+		/*
+		 * Default io_pid to the processor reporting the error
+		 * [this will get changed in marvel_find_io7_with_error()
+		 * if a different one is needed]
+		 */
+		lf_subpackets->io_pid = lf_subpackets->logout->whami;
+
+		/*
+		 * Evaluate the frames.
+		 */
+		disposition = process_frame(lf_subpackets, 0);
+	}
+	switch(disposition) {
+	case MCHK_DISPOSITION_DISMISS:
+		/* Nothing to do. */
+		break;
+
+	case MCHK_DISPOSITION_REPORT:
+		/* Recognized error, report it. */
+		printk("%s*%s (Vector 0x%x) reported on CPU %d\n",
+		       err_print_prefix, error_type,
+		       (unsigned int)vector, (int)smp_processor_id());
+		el_print_timestamp(&lf_subpackets->logout->timestamp);
+		process_frame(lf_subpackets, 1);
+		break;
+
+	default:
+		/* Unknown - dump the annotated subpackets. */
+		printk("%s*%s (Vector 0x%x) reported on CPU %d\n",
+		       err_print_prefix, error_type,
+		       (unsigned int)vector, (int)smp_processor_id());
+		el_process_subpacket(el_ptr);
+		break;
+
+	}
+
+	err_print_prefix = saved_err_prefix;
+
+        /* Release the logout frame.  */
+	wrmces(0x7);
+	mb();
+}
+
+void __init
+marvel_register_error_handlers(void)
+{
+	ev7_register_error_handlers();
+}
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
new file mode 100644
index 000000000..0ffb2feea
--- /dev/null
+++ b/arch/alpha/kernel/err_titan.c
@@ -0,0 +1,761 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_titan.c
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Error handling code supporting TITAN systems
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/core_titan.h>
+#include <asm/hwrpb.h>
+#include <asm/smp.h>
+#include <asm/err_common.h>
+#include <asm/err_ev6.h>
+#include <asm/irq_regs.h>
+
+#include "err_impl.h"
+#include "proto.h"
+
+
+static int
+titan_parse_c_misc(u64 c_misc, int print)
+{
+#ifdef CONFIG_VERBOSE_MCHECK
+	char *src;
+	int nxs = 0;
+#endif
+	int status = MCHK_DISPOSITION_REPORT;
+
+#define TITAN__CCHIP_MISC__NXM		(1UL << 28)
+#define TITAN__CCHIP_MISC__NXS__S	(29)
+#define TITAN__CCHIP_MISC__NXS__M	(0x7)
+
+	if (!(c_misc & TITAN__CCHIP_MISC__NXM))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (!print)
+		return status;
+
+	nxs = EXTRACT(c_misc, TITAN__CCHIP_MISC__NXS);
+	switch(nxs) {
+	case 0:	/* CPU 0 */
+	case 1:	/* CPU 1 */
+	case 2:	/* CPU 2 */
+	case 3:	/* CPU 3 */
+		src = "CPU";
+		/* num is already the CPU number */
+		break;
+	case 4:	/* Pchip 0 */
+	case 5:	/* Pchip 1 */
+		src = "Pchip";
+		nxs -= 4;
+		break;
+	default:/* reserved */
+		src = "Unknown, NXS =";
+		/* leave num untouched */
+		break;
+	}
+
+	printk("%s    Non-existent memory access from: %s %d\n", 
+	       err_print_prefix, src, nxs);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}
+
+static int
+titan_parse_p_serror(int which, u64 serror, int print)
+{
+	int status = MCHK_DISPOSITION_REPORT;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	static const char * const serror_src[] = {
+		"GPCI", "APCI", "AGP HP", "AGP LP"
+	};
+	static const char * const serror_cmd[] = {
+		"DMA Read", "DMA RMW", "SGTE Read", "Reserved"
+	};
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+#define TITAN__PCHIP_SERROR__LOST_UECC	(1UL << 0)
+#define TITAN__PCHIP_SERROR__UECC	(1UL << 1)
+#define TITAN__PCHIP_SERROR__CRE	(1UL << 2)
+#define TITAN__PCHIP_SERROR__NXIO	(1UL << 3)
+#define TITAN__PCHIP_SERROR__LOST_CRE	(1UL << 4)
+#define TITAN__PCHIP_SERROR__ECCMASK	(TITAN__PCHIP_SERROR__UECC |	  \
+					 TITAN__PCHIP_SERROR__CRE)
+#define TITAN__PCHIP_SERROR__ERRMASK	(TITAN__PCHIP_SERROR__LOST_UECC | \
+					 TITAN__PCHIP_SERROR__UECC |	  \
+					 TITAN__PCHIP_SERROR__CRE |	  \
+					 TITAN__PCHIP_SERROR__NXIO |	  \
+					 TITAN__PCHIP_SERROR__LOST_CRE)
+#define TITAN__PCHIP_SERROR__SRC__S	(52)
+#define TITAN__PCHIP_SERROR__SRC__M	(0x3)
+#define TITAN__PCHIP_SERROR__CMD__S	(54)
+#define TITAN__PCHIP_SERROR__CMD__M	(0x3)
+#define TITAN__PCHIP_SERROR__SYN__S	(56)
+#define TITAN__PCHIP_SERROR__SYN__M	(0xff)
+#define TITAN__PCHIP_SERROR__ADDR__S	(15)
+#define TITAN__PCHIP_SERROR__ADDR__M	(0xffffffffUL)
+
+	if (!(serror & TITAN__PCHIP_SERROR__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (!print)
+		return status;
+
+	printk("%s  PChip %d SERROR: %016llx\n",
+	       err_print_prefix, which, serror);
+	if (serror & TITAN__PCHIP_SERROR__ECCMASK) {
+		printk("%s    %sorrectable ECC Error:\n"
+		       "      Source: %-6s  Command: %-8s  Syndrome: 0x%08x\n"
+		       "      Address: 0x%llx\n",
+		       err_print_prefix,
+		       (serror & TITAN__PCHIP_SERROR__UECC) ? "Unc" : "C",
+		       serror_src[EXTRACT(serror, TITAN__PCHIP_SERROR__SRC)],
+		       serror_cmd[EXTRACT(serror, TITAN__PCHIP_SERROR__CMD)],
+		       (unsigned)EXTRACT(serror, TITAN__PCHIP_SERROR__SYN),
+		       EXTRACT(serror, TITAN__PCHIP_SERROR__ADDR));
+	}
+	if (serror & TITAN__PCHIP_SERROR__NXIO)
+		printk("%s    Non Existent I/O Error\n", err_print_prefix);
+	if (serror & TITAN__PCHIP_SERROR__LOST_UECC)
+		printk("%s    Lost Uncorrectable ECC Error\n", 
+		       err_print_prefix);
+	if (serror & TITAN__PCHIP_SERROR__LOST_CRE)
+		printk("%s    Lost Correctable ECC Error\n", err_print_prefix);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}
+
+static int 
+titan_parse_p_perror(int which, int port, u64 perror, int print)
+{
+	int cmd;
+	unsigned long addr;
+	int status = MCHK_DISPOSITION_REPORT;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	static const char * const perror_cmd[] = {
+		"Interrupt Acknowledge", "Special Cycle",
+		"I/O Read",		"I/O Write",
+		"Reserved",		"Reserved",
+		"Memory Read",		"Memory Write",
+		"Reserved",		"Reserved",
+		"Configuration Read",	"Configuration Write",
+		"Memory Read Multiple",	"Dual Address Cycle",
+		"Memory Read Line",	"Memory Write and Invalidate"
+	};
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+#define TITAN__PCHIP_PERROR__LOST	(1UL << 0)
+#define TITAN__PCHIP_PERROR__SERR	(1UL << 1)
+#define TITAN__PCHIP_PERROR__PERR	(1UL << 2)
+#define TITAN__PCHIP_PERROR__DCRTO	(1UL << 3)
+#define TITAN__PCHIP_PERROR__SGE	(1UL << 4)
+#define TITAN__PCHIP_PERROR__APE	(1UL << 5)
+#define TITAN__PCHIP_PERROR__TA		(1UL << 6)
+#define TITAN__PCHIP_PERROR__DPE	(1UL << 7)
+#define TITAN__PCHIP_PERROR__NDS	(1UL << 8)
+#define TITAN__PCHIP_PERROR__IPTPR	(1UL << 9)
+#define TITAN__PCHIP_PERROR__IPTPW	(1UL << 10)
+#define TITAN__PCHIP_PERROR__ERRMASK	(TITAN__PCHIP_PERROR__LOST |	\
+					 TITAN__PCHIP_PERROR__SERR |	\
+					 TITAN__PCHIP_PERROR__PERR |	\
+					 TITAN__PCHIP_PERROR__DCRTO |	\
+					 TITAN__PCHIP_PERROR__SGE |	\
+					 TITAN__PCHIP_PERROR__APE |	\
+					 TITAN__PCHIP_PERROR__TA |	\
+					 TITAN__PCHIP_PERROR__DPE |	\
+					 TITAN__PCHIP_PERROR__NDS |	\
+					 TITAN__PCHIP_PERROR__IPTPR |	\
+					 TITAN__PCHIP_PERROR__IPTPW)
+#define TITAN__PCHIP_PERROR__DAC	(1UL << 47)
+#define TITAN__PCHIP_PERROR__MWIN	(1UL << 48)
+#define TITAN__PCHIP_PERROR__CMD__S	(52)
+#define TITAN__PCHIP_PERROR__CMD__M	(0x0f)
+#define TITAN__PCHIP_PERROR__ADDR__S	(14)
+#define TITAN__PCHIP_PERROR__ADDR__M	(0x1fffffffful)
+
+	if (!(perror & TITAN__PCHIP_PERROR__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	cmd = EXTRACT(perror, TITAN__PCHIP_PERROR__CMD);
+	addr = EXTRACT(perror, TITAN__PCHIP_PERROR__ADDR) << 2;
+
+	/*
+	 * Initializing the BIOS on a video card on a bus without
+	 * a south bridge (subtractive decode agent) can result in 
+	 * master aborts as the BIOS probes the capabilities of the
+	 * card. XFree86 does such initialization. If the error
+	 * is a master abort (No DevSel as PCI Master) and the command
+	 * is an I/O read or write below the address where we start
+	 * assigning PCI I/O spaces (SRM uses 0x1000), then mark the
+	 * error as dismissable so starting XFree86 doesn't result
+	 * in a series of uncorrectable errors being reported. Also
+	 * dismiss master aborts to VGA frame buffer space
+	 * (0xA0000 - 0xC0000) and legacy BIOS space (0xC0000 - 0x100000)
+	 * for the same reason.
+	 *
+	 * Also mark the error dismissible if it looks like the right
+	 * error but only the Lost bit is set. Since the BIOS initialization
+	 * can cause multiple master aborts and the error interrupt can
+	 * be handled on a different CPU than the BIOS code is run on,
+	 * it is possible for a second master abort to occur between the
+	 * time the PALcode reads PERROR and the time it writes PERROR
+	 * to acknowledge the error. If this timing happens, a second
+	 * error will be signalled after the first, and if no additional
+	 * errors occur, will look like a Lost error with no additional 
+	 * errors on the same transaction as the previous error.
+	 */
+	if (((perror & TITAN__PCHIP_PERROR__NDS) || 
+	     ((perror & TITAN__PCHIP_PERROR__ERRMASK) == 
+	      TITAN__PCHIP_PERROR__LOST)) &&
+	    ((((cmd & 0xE) == 2) && (addr < 0x1000)) ||
+	     (((cmd & 0xE) == 6) && (addr >= 0xA0000) && (addr < 0x100000)))) {
+		status = MCHK_DISPOSITION_DISMISS;
+	}
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (!print) 
+		return status;
+
+	printk("%s  PChip %d %cPERROR: %016llx\n",
+	       err_print_prefix, which, 
+	       port ? 'A' : 'G', perror);
+	if (perror & TITAN__PCHIP_PERROR__IPTPW)
+		printk("%s    Invalid Peer-to-Peer Write\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__IPTPR)
+		printk("%s    Invalid Peer-to-Peer Read\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__NDS)
+		printk("%s    No DEVSEL as PCI Master [Master Abort]\n",
+		       err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__DPE)
+		printk("%s    Data Parity Error\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__TA)
+		printk("%s    Target Abort\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__APE)
+		printk("%s    Address Parity Error\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__SGE)
+		printk("%s    Scatter-Gather Error, Invalid PTE\n", 
+		       err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__DCRTO)
+		printk("%s    Delayed-Completion Retry Timeout\n", 
+		       err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__PERR)
+		printk("%s    PERR Asserted\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__SERR)
+		printk("%s    SERR Asserted\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__LOST)
+		printk("%s    Lost Error\n", err_print_prefix);
+	printk("%s      Command: 0x%x - %s\n"
+		 "      Address: 0x%lx\n",
+	       err_print_prefix,
+	       cmd, perror_cmd[cmd],
+	       addr);
+	if (perror & TITAN__PCHIP_PERROR__DAC)
+		printk("%s      Dual Address Cycle\n", err_print_prefix);
+	if (perror & TITAN__PCHIP_PERROR__MWIN)
+		printk("%s      Hit in Monster Window\n", err_print_prefix);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}
+
+static int
+titan_parse_p_agperror(int which, u64 agperror, int print)
+{
+	int status = MCHK_DISPOSITION_REPORT;
+#ifdef CONFIG_VERBOSE_MCHECK
+	int cmd, len;
+	unsigned long addr;
+
+	static const char * const agperror_cmd[] = {
+		"Read (low-priority)",	"Read (high-priority)",
+		"Write (low-priority)",	"Write (high-priority)",
+		"Reserved",		"Reserved",
+		"Flush",		"Fence"
+	};
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+#define TITAN__PCHIP_AGPERROR__LOST	(1UL << 0)
+#define TITAN__PCHIP_AGPERROR__LPQFULL	(1UL << 1)
+#define TITAN__PCHIP_AGPERROR__HPQFULL	(1UL << 2)
+#define TITAN__PCHIP_AGPERROR__RESCMD	(1UL << 3)
+#define TITAN__PCHIP_AGPERROR__IPTE	(1UL << 4)
+#define TITAN__PCHIP_AGPERROR__PTP	(1UL << 5)
+#define TITAN__PCHIP_AGPERROR__NOWINDOW	(1UL << 6)
+#define TITAN__PCHIP_AGPERROR__ERRMASK	(TITAN__PCHIP_AGPERROR__LOST |    \
+					 TITAN__PCHIP_AGPERROR__LPQFULL | \
+					 TITAN__PCHIP_AGPERROR__HPQFULL | \
+					 TITAN__PCHIP_AGPERROR__RESCMD |  \
+					 TITAN__PCHIP_AGPERROR__IPTE |    \
+					 TITAN__PCHIP_AGPERROR__PTP |     \
+					 TITAN__PCHIP_AGPERROR__NOWINDOW)
+#define TITAN__PCHIP_AGPERROR__DAC	(1UL << 48)
+#define TITAN__PCHIP_AGPERROR__MWIN	(1UL << 49)
+#define TITAN__PCHIP_AGPERROR__FENCE	(1UL << 59)
+#define TITAN__PCHIP_AGPERROR__CMD__S	(50)
+#define TITAN__PCHIP_AGPERROR__CMD__M	(0x07)
+#define TITAN__PCHIP_AGPERROR__ADDR__S	(15)
+#define TITAN__PCHIP_AGPERROR__ADDR__M  (0xffffffffUL)
+#define TITAN__PCHIP_AGPERROR__LEN__S	(53)
+#define TITAN__PCHIP_AGPERROR__LEN__M	(0x3f)
+
+	if (!(agperror & TITAN__PCHIP_AGPERROR__ERRMASK))
+		return MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (!print)
+		return status;
+
+	cmd = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__CMD);
+	addr = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__ADDR) << 3;
+	len = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__LEN);
+
+	printk("%s  PChip %d AGPERROR: %016llx\n", err_print_prefix,
+	       which, agperror);
+	if (agperror & TITAN__PCHIP_AGPERROR__NOWINDOW)
+		printk("%s    No Window\n", err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__PTP)
+		printk("%s    Peer-to-Peer set\n", err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__IPTE)
+		printk("%s    Invalid PTE\n", err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__RESCMD)
+		printk("%s    Reserved Command\n", err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__HPQFULL)
+		printk("%s    HP Transaction Received while Queue Full\n", 
+		       err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__LPQFULL)
+		printk("%s    LP Transaction Received while Queue Full\n", 
+		       err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__LOST)
+		printk("%s    Lost Error\n", err_print_prefix);
+	printk("%s      Command: 0x%x - %s, %d Quadwords%s\n"
+		 "      Address: 0x%lx\n",
+	       err_print_prefix, cmd, agperror_cmd[cmd], len,
+	       (agperror & TITAN__PCHIP_AGPERROR__FENCE) ? ", FENCE" : "",
+	       addr);
+	if (agperror & TITAN__PCHIP_AGPERROR__DAC)
+		printk("%s      Dual Address Cycle\n", err_print_prefix);
+	if (agperror & TITAN__PCHIP_AGPERROR__MWIN)
+		printk("%s      Hit in Monster Window\n", err_print_prefix);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}	
+
+static int
+titan_parse_p_chip(int which, u64 serror, u64 gperror, 
+		   u64 aperror, u64 agperror, int print)
+{
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+	status |= titan_parse_p_serror(which, serror, print);
+	status |= titan_parse_p_perror(which, 0, gperror, print);
+	status |= titan_parse_p_perror(which, 1, aperror, print);
+	status |= titan_parse_p_agperror(which, agperror, print);
+	return status;
+}
+
+int
+titan_process_logout_frame(struct el_common *mchk_header, int print)
+{
+	struct el_TITAN_sysdata_mcheck *tmchk =
+		(struct el_TITAN_sysdata_mcheck *)
+		((unsigned long)mchk_header + mchk_header->sys_offset);
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	status |= titan_parse_c_misc(tmchk->c_misc, print);
+	status |= titan_parse_p_chip(0, tmchk->p0_serror, tmchk->p0_gperror,
+				     tmchk->p0_aperror, tmchk->p0_agperror, 
+				     print);
+	status |= titan_parse_p_chip(1, tmchk->p1_serror, tmchk->p1_gperror,
+				     tmchk->p1_aperror, tmchk->p1_agperror, 
+				     print);
+
+	return status;
+}
+
+void
+titan_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_common *mchk_header = (struct el_common *)la_ptr;
+	struct el_TITAN_sysdata_mcheck *tmchk =
+		(struct el_TITAN_sysdata_mcheck *)
+		((unsigned long)mchk_header + mchk_header->sys_offset);
+	u64 irqmask;
+
+	/*
+	 * Mask of Titan interrupt sources which are reported as machine checks
+	 *
+	 * 63 - CChip Error
+	 * 62 - PChip 0 H_Error
+	 * 61 - PChip 1 H_Error
+	 * 60 - PChip 0 C_Error
+	 * 59 - PChip 1 C_Error
+	 */
+#define TITAN_MCHECK_INTERRUPT_MASK	0xF800000000000000UL
+
+	/*
+	 * Sync the processor
+	 */
+	mb();
+	draina();
+	
+	/*
+	 * Only handle system errors here 
+	 */
+	if ((vector != SCB_Q_SYSMCHK) && (vector != SCB_Q_SYSERR)) {
+		ev6_machine_check(vector, la_ptr);
+		return;
+	}
+
+	/* 
+	 * It's a system error, handle it here
+	 *
+	 * The PALcode has already cleared the error, so just parse it
+	 */
+	
+	/* 
+	 * Parse the logout frame without printing first. If the only error(s)
+	 * found are classified as "dismissable", then just dismiss them and
+	 * don't print any message
+	 */
+	if (titan_process_logout_frame(mchk_header, 0) != 
+	    MCHK_DISPOSITION_DISMISS) {
+		char *saved_err_prefix = err_print_prefix;
+		err_print_prefix = KERN_CRIT;
+
+		/*
+		 * Either a nondismissable error was detected or no
+		 * recognized error was detected  in the logout frame 
+		 * -- report the error in either case
+		 */
+		printk("%s"
+		       "*System %s Error (Vector 0x%x) reported on CPU %d:\n", 
+		       err_print_prefix,
+		       (vector == SCB_Q_SYSERR)?"Correctable":"Uncorrectable",
+		       (unsigned int)vector, (int)smp_processor_id());
+		
+#ifdef CONFIG_VERBOSE_MCHECK
+		titan_process_logout_frame(mchk_header, alpha_verbose_mcheck);
+		if (alpha_verbose_mcheck)
+			dik_show_regs(get_irq_regs(), NULL);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+		err_print_prefix = saved_err_prefix;
+
+		/*
+		 * Convert any pending interrupts which report as system
+		 * machine checks to interrupts
+		 */
+		irqmask = tmchk->c_dirx & TITAN_MCHECK_INTERRUPT_MASK;
+		titan_dispatch_irqs(irqmask);
+	}	
+
+
+	/* 
+	 * Release the logout frame 
+	 */
+	wrmces(0x7);
+	mb();
+}
+
+/*
+ * Subpacket Annotations
+ */
+static char *el_titan_pchip0_extended_annotation[] = {
+	"Subpacket Header", 	"P0_SCTL",	"P0_SERREN",
+	"P0_APCTL",		"P0_APERREN",	"P0_AGPERREN",
+	"P0_ASPRST",		"P0_AWSBA0",	"P0_AWSBA1",
+	"P0_AWSBA2",		"P0_AWSBA3",	"P0_AWSM0",
+	"P0_AWSM1",		"P0_AWSM2",	"P0_AWSM3",
+	"P0_ATBA0",		"P0_ATBA1",	"P0_ATBA2",
+	"P0_ATBA3",		"P0_GPCTL",	"P0_GPERREN",
+	"P0_GSPRST",		"P0_GWSBA0",	"P0_GWSBA1",
+	"P0_GWSBA2",		"P0_GWSBA3",	"P0_GWSM0",
+	"P0_GWSM1",		"P0_GWSM2",	"P0_GWSM3",
+	"P0_GTBA0",		"P0_GTBA1",	"P0_GTBA2",
+	"P0_GTBA3",		NULL 
+};
+static char *el_titan_pchip1_extended_annotation[] = {
+	"Subpacket Header", 	"P1_SCTL",	"P1_SERREN",
+	"P1_APCTL",		"P1_APERREN",	"P1_AGPERREN",
+	"P1_ASPRST",		"P1_AWSBA0",	"P1_AWSBA1",
+	"P1_AWSBA2",		"P1_AWSBA3",	"P1_AWSM0",
+	"P1_AWSM1",		"P1_AWSM2",	"P1_AWSM3",
+	"P1_ATBA0",		"P1_ATBA1",	"P1_ATBA2",
+	"P1_ATBA3",		"P1_GPCTL",	"P1_GPERREN",
+	"P1_GSPRST",		"P1_GWSBA0",	"P1_GWSBA1",
+	"P1_GWSBA2",		"P1_GWSBA3",	"P1_GWSM0",
+	"P1_GWSM1",		"P1_GWSM2",	"P1_GWSM3",
+	"P1_GTBA0",		"P1_GTBA1",	"P1_GTBA2",
+	"P1_GTBA3",		NULL 
+};
+static char *el_titan_memory_extended_annotation[] = {
+	"Subpacket Header", 	"AAR0",		"AAR1",
+	"AAR2",			"AAR3",		"P0_SCTL",
+	"P0_GPCTL",		"P0_APCTL",	"P1_SCTL",
+	"P1_GPCTL",		"P1_SCTL",	NULL 
+};
+
+static struct el_subpacket_annotation el_titan_annotations[] = {
+	SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
+			     EL_TYPE__REGATTA__TITAN_PCHIP0_EXTENDED,
+			     1,
+			     "Titan PChip 0 Extended Frame",
+			     el_titan_pchip0_extended_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
+			     EL_TYPE__REGATTA__TITAN_PCHIP1_EXTENDED,
+			     1,
+			     "Titan PChip 1 Extended Frame",
+			     el_titan_pchip1_extended_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
+			     EL_TYPE__REGATTA__TITAN_MEMORY_EXTENDED,
+			     1,
+			     "Titan Memory Extended Frame",
+			     el_titan_memory_extended_annotation),
+	SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
+			     EL_TYPE__TERMINATION__TERMINATION,
+			     1,
+			     "Termination Subpacket",
+			     NULL)
+};
+
+static struct el_subpacket *
+el_process_regatta_subpacket(struct el_subpacket *header)
+{
+	if (header->class != EL_CLASS__REGATTA_FAMILY) {
+		printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;
+	}
+
+	switch(header->type) {
+	case EL_TYPE__REGATTA__PROCESSOR_ERROR_FRAME:
+	case EL_TYPE__REGATTA__SYSTEM_ERROR_FRAME:
+	case EL_TYPE__REGATTA__ENVIRONMENTAL_FRAME:
+	case EL_TYPE__REGATTA__PROCESSOR_DBL_ERROR_HALT:
+	case EL_TYPE__REGATTA__SYSTEM_DBL_ERROR_HALT:
+		printk("%s  ** Occurred on CPU %d:\n", 
+		       err_print_prefix,
+		       (int)header->by_type.regatta_frame.cpuid);
+		privateer_process_logout_frame((struct el_common *)
+			header->by_type.regatta_frame.data_start, 1);
+		break;
+	default:
+		printk("%s  ** REGATTA TYPE %d SUBPACKET\n", 
+		       err_print_prefix, header->type);
+		el_annotate_subpacket(header);
+		break;
+	}
+
+
+	return (struct el_subpacket *)((unsigned long)header + header->length);
+} 
+
+static struct el_subpacket_handler titan_subpacket_handler = 
+	SUBPACKET_HANDLER_INIT(EL_CLASS__REGATTA_FAMILY, 
+			       el_process_regatta_subpacket);
+
+void __init
+titan_register_error_handlers(void)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE (el_titan_annotations); i++)
+		cdl_register_subpacket_annotation(&el_titan_annotations[i]);
+
+	cdl_register_subpacket_handler(&titan_subpacket_handler);
+
+	ev6_register_error_handlers();
+}
+
+
+/*
+ * Privateer
+ */
+
+static int
+privateer_process_680_frame(struct el_common *mchk_header, int print)
+{
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+#ifdef CONFIG_VERBOSE_MCHECK
+	struct el_PRIVATEER_envdata_mcheck *emchk =
+		(struct el_PRIVATEER_envdata_mcheck *)
+		((unsigned long)mchk_header + mchk_header->sys_offset);
+
+	/* TODO - categorize errors, for now, no error */
+
+	if (!print)
+		return status;
+
+	/* TODO - decode instead of just dumping... */
+	printk("%s  Summary Flags:         %016llx\n"
+ 	         "  CChip DIRx:            %016llx\n"
+		 "  System Management IR:  %016llx\n"
+		 "  CPU IR:                %016llx\n"
+		 "  Power Supply IR:       %016llx\n"
+		 "  LM78 Fault Status:     %016llx\n"
+		 "  System Doors:          %016llx\n"
+		 "  Temperature Warning:   %016llx\n"
+		 "  Fan Control:           %016llx\n"
+		 "  Fatal Power Down Code: %016llx\n",
+	       err_print_prefix,
+	       emchk->summary,
+	       emchk->c_dirx,
+	       emchk->smir,
+	       emchk->cpuir,
+	       emchk->psir,
+	       emchk->fault,
+	       emchk->sys_doors,
+	       emchk->temp_warn,
+	       emchk->fan_ctrl,
+	       emchk->code);
+#endif /* CONFIG_VERBOSE_MCHECK */
+
+	return status;
+}
+
+int
+privateer_process_logout_frame(struct el_common *mchk_header, int print)
+{
+	struct el_common_EV6_mcheck *ev6mchk = 
+		(struct el_common_EV6_mcheck *)mchk_header;
+	int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
+
+	/*
+	 * Machine check codes
+	 */
+#define PRIVATEER_MCHK__CORR_ECC		0x86	/* 630 */
+#define PRIVATEER_MCHK__DC_TAG_PERR		0x9E	/* 630 */
+#define PRIVATEER_MCHK__PAL_BUGCHECK		0x8E	/* 670 */
+#define PRIVATEER_MCHK__OS_BUGCHECK		0x90	/* 670 */
+#define PRIVATEER_MCHK__PROC_HRD_ERR		0x98	/* 670 */
+#define PRIVATEER_MCHK__ISTREAM_CMOV_PRX	0xA0	/* 670 */
+#define PRIVATEER_MCHK__ISTREAM_CMOV_FLT	0xA2	/* 670 */
+#define PRIVATEER_MCHK__SYS_HRD_ERR		0x202	/* 660 */
+#define PRIVATEER_MCHK__SYS_CORR_ERR		0x204	/* 620 */
+#define PRIVATEER_MCHK__SYS_ENVIRON		0x206	/* 680 */
+
+	switch(ev6mchk->MCHK_Code) {
+	/*
+	 * Vector 630 - Processor, Correctable
+	 */
+	case PRIVATEER_MCHK__CORR_ECC:
+	case PRIVATEER_MCHK__DC_TAG_PERR:
+		/*
+		 * Fall through to vector 670 for processing...
+		 */
+	/*
+	 * Vector 670 - Processor, Uncorrectable
+	 */
+	case PRIVATEER_MCHK__PAL_BUGCHECK:
+	case PRIVATEER_MCHK__OS_BUGCHECK:
+	case PRIVATEER_MCHK__PROC_HRD_ERR:
+	case PRIVATEER_MCHK__ISTREAM_CMOV_PRX:
+	case PRIVATEER_MCHK__ISTREAM_CMOV_FLT:
+		status |= ev6_process_logout_frame(mchk_header, print);
+		break;
+
+	/*
+	 * Vector 620 - System, Correctable
+	 */
+	case PRIVATEER_MCHK__SYS_CORR_ERR:
+		/*
+		 * Fall through to vector 660 for processing...
+		 */
+	/*
+	 * Vector 660 - System, Uncorrectable
+	 */
+	case PRIVATEER_MCHK__SYS_HRD_ERR:
+		status |= titan_process_logout_frame(mchk_header, print);
+		break;
+
+	/* 
+	 * Vector 680 - System, Environmental
+	 */
+	case PRIVATEER_MCHK__SYS_ENVIRON:	/* System, Environmental */
+		status |= privateer_process_680_frame(mchk_header, print);
+		break;
+
+	/* 
+	 * Unknown
+	 */
+	default:
+		status |= MCHK_DISPOSITION_REPORT;
+		if (print) {
+			printk("%s** Unknown Error, frame follows\n", 
+			       err_print_prefix);
+			mchk_dump_logout_frame(mchk_header);
+		}
+
+	}
+
+	return status;
+}
+
+void
+privateer_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	struct el_common *mchk_header = (struct el_common *)la_ptr;
+	struct el_TITAN_sysdata_mcheck *tmchk =
+		(struct el_TITAN_sysdata_mcheck *)
+		(la_ptr + mchk_header->sys_offset);
+	u64 irqmask;
+	char *saved_err_prefix = err_print_prefix;
+
+#define PRIVATEER_680_INTERRUPT_MASK		(0xE00UL)
+#define PRIVATEER_HOTPLUG_INTERRUPT_MASK	(0xE00UL)
+
+	/*
+	 * Sync the processor.
+	 */
+	mb();
+	draina();
+
+	/* 
+	 * Only handle system events here.
+	 */
+	if (vector != SCB_Q_SYSEVENT) 
+		return titan_machine_check(vector, la_ptr);
+
+	/*
+	 * Report the event - System Events should be reported even if no
+	 * error is indicated since the event could indicate the return
+	 * to normal status.
+	 */
+	err_print_prefix = KERN_CRIT;
+	printk("%s*System Event (Vector 0x%x) reported on CPU %d:\n", 
+	       err_print_prefix,
+	       (unsigned int)vector, (int)smp_processor_id());
+	privateer_process_680_frame(mchk_header, 1);
+	err_print_prefix = saved_err_prefix;
+	
+	/* 
+	 * Convert any pending interrupts which report as 680 machine
+	 * checks to interrupts.
+	 */
+	irqmask = tmchk->c_dirx & PRIVATEER_680_INTERRUPT_MASK;
+
+	/*
+	 * Dispatch the interrupt(s).
+	 */
+	titan_dispatch_irqs(irqmask);
+
+	/* 
+	 * Release the logout frame.
+	 */
+	wrmces(0x7);
+	mb();
+}
diff --git a/arch/alpha/kernel/es1888.c b/arch/alpha/kernel/es1888.c
new file mode 100644
index 000000000..297476bb0
--- /dev/null
+++ b/arch/alpha/kernel/es1888.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/es1888.c
+ *
+ * Init the built-in ES1888 sound chip (SB16 compatible)
+ */
+
+#include <linux/init.h>
+#include <asm/io.h>
+#include "proto.h"
+
+void __init
+es1888_init(void)
+{
+	/* Sequence of IO reads to init the audio controller */
+	inb(0x0229);
+	inb(0x0229);
+	inb(0x0229);
+	inb(0x022b);
+	inb(0x0229);
+	inb(0x022b);
+	inb(0x0229);
+	inb(0x0229);
+	inb(0x022b);
+	inb(0x0229);
+	inb(0x0220); /* This sets the base address to 0x220 */
+
+	/* Sequence to set DMA channels */
+	outb(0x01, 0x0226);		/* reset */
+	inb(0x0226);			/* pause */
+	outb(0x00, 0x0226);		/* release reset */
+	while (!(inb(0x022e) & 0x80))	/* wait for bit 7 to assert*/
+		continue;
+	inb(0x022a);			/* pause */
+	outb(0xc6, 0x022c);		/* enable extended mode */
+	inb(0x022a);			/* pause, also forces the write */
+	while (inb(0x022c) & 0x80)	/* wait for bit 7 to deassert */
+		continue;
+	outb(0xb1, 0x022c);		/* setup for write to Interrupt CR */
+	while (inb(0x022c) & 0x80)	/* wait for bit 7 to deassert */
+		continue;
+	outb(0x14, 0x022c);		/* set IRQ 5 */
+	while (inb(0x022c) & 0x80)	/* wait for bit 7 to deassert */
+		continue;
+	outb(0xb2, 0x022c);		/* setup for write to DMA CR */
+	while (inb(0x022c) & 0x80)	/* wait for bit 7 to deassert */
+		continue;
+	outb(0x18, 0x022c);		/* set DMA channel 1 */
+	inb(0x022c);			/* force the write */
+}
diff --git a/arch/alpha/kernel/gct.c b/arch/alpha/kernel/gct.c
new file mode 100644
index 000000000..8ac0088dc
--- /dev/null
+++ b/arch/alpha/kernel/gct.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/gct.c
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+
+#include <asm/hwrpb.h>
+#include <asm/gct.h>
+
+int
+gct6_find_nodes(gct6_node *node, gct6_search_struct *search)
+{
+	gct6_search_struct *wanted;
+	int status = 0;
+
+	/* First check the magic number.  */
+	if (node->magic != GCT_NODE_MAGIC) {
+		printk(KERN_ERR "GCT Node MAGIC incorrect - GCT invalid\n");
+		return -EINVAL;
+	}
+
+	/* Check against the search struct.  */
+	for (wanted = search; 
+	     wanted && (wanted->type | wanted->subtype); 
+	     wanted++) {
+		if (node->type != wanted->type)
+			continue;
+		if (node->subtype != wanted->subtype)
+			continue;
+
+		/* Found it -- call out.  */
+		if (wanted->callout)
+			wanted->callout(node);
+	}
+
+	/* Now walk the tree, siblings first.  */
+	if (node->next) 
+		status |= gct6_find_nodes(GCT_NODE_PTR(node->next), search);
+
+	/* Then the children.  */
+	if (node->child) 
+		status |= gct6_find_nodes(GCT_NODE_PTR(node->child), search);
+
+	return status;
+}
diff --git a/arch/alpha/kernel/head.S b/arch/alpha/kernel/head.S
new file mode 100644
index 000000000..bb48a8ae4
--- /dev/null
+++ b/arch/alpha/kernel/head.S
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/kernel/head.S
+ *
+ * initial boot stuff.. At this point, the bootloader has already
+ * switched into OSF/1 PAL-code, and loaded us at the correct address
+ * (START_ADDR).  So there isn't much left for us to do: just set up
+ * the kernel global pointer and jump to the kernel entry-point.
+ */
+
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/pal.h>
+#include <asm/setup.h>
+
+__HEAD
+.globl _stext
+	.set noreorder
+	.globl	__start
+	.ent	__start
+_stext:
+__start:
+	.prologue 0
+	br	$27,1f
+1:	ldgp	$29,0($27)
+	/* We need to get current_task_info loaded up...  */
+	lda	$8,init_thread_union
+	/* ... and find our stack ... */
+	lda	$30,0x4000 - SIZEOF_PT_REGS($8)
+	/* ... and then we can start the kernel.  */
+	jsr	$26,start_kernel
+	call_pal PAL_halt
+	.end __start
+
+#ifdef CONFIG_SMP
+	.align 3
+	.globl	__smp_callin
+	.ent	__smp_callin
+	/* On entry here from SRM console, the HWPCB of the per-cpu
+	   slot for this processor has been loaded.  We've arranged
+	   for the UNIQUE value for this process to contain the PCBB
+	   of the target idle task.  */
+__smp_callin:
+	.prologue 1
+	ldgp	$29,0($27)	# First order of business, load the GP.
+
+	call_pal PAL_rduniq	# Grab the target PCBB.
+	mov	$0,$16		# Install it.
+	call_pal PAL_swpctx
+
+	lda	$8,0x3fff	# Find "current".
+	bic	$30,$8,$8
+	
+	jsr	$26,smp_callin
+	call_pal PAL_halt
+	.end __smp_callin
+#endif /* CONFIG_SMP */
+
+	#
+	# The following two functions are needed for supporting SRM PALcode
+	# on the PC164 (at least), since that PALcode manages the interrupt
+	# masking, and we cannot duplicate the effort without causing problems
+	#
+
+	.align 3
+	.globl	cserve_ena
+	.ent	cserve_ena
+cserve_ena:
+	.prologue 0
+	bis	$16,$16,$17
+	lda	$16,52($31)
+	call_pal PAL_cserve
+	ret	($26)
+	.end	cserve_ena
+
+	.align 3
+	.globl	cserve_dis
+	.ent	cserve_dis
+cserve_dis:
+	.prologue 0
+	bis	$16,$16,$17
+	lda	$16,53($31)
+	call_pal PAL_cserve
+	ret	($26)
+	.end	cserve_dis
+
+	#
+	# It is handy, on occasion, to make halt actually just loop. 
+	# Putting it here means we dont have to recompile the whole
+	# kernel.
+	#
+
+	.align 3
+	.globl	halt
+	.ent	halt
+halt:
+	.prologue 0
+	call_pal PAL_halt
+	.end	halt
diff --git a/arch/alpha/kernel/io.c b/arch/alpha/kernel/io.c
new file mode 100644
index 000000000..eda097782
--- /dev/null
+++ b/arch/alpha/kernel/io.c
@@ -0,0 +1,694 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Alpha IO and memory functions.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <asm/io.h>
+
+/* Out-of-line versions of the i/o routines that redirect into the 
+   platform-specific version.  Note that "platform-specific" may mean
+   "generic", which bumps through the machine vector.  */
+
+unsigned int
+ioread8(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+	mb();
+	return ret;
+}
+
+unsigned int ioread16(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+	mb();
+	return ret;
+}
+
+unsigned int ioread32(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr);
+	mb();
+	return ret;
+}
+
+u64 ioread64(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread64)(addr);
+	mb();
+	return ret;
+}
+
+void iowrite8(u8 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr);
+}
+
+void iowrite16(u16 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr);
+}
+
+void iowrite32(u32 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX,iowrite32)(b, addr);
+}
+
+void iowrite64(u64 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX,iowrite64)(b, addr);
+}
+
+EXPORT_SYMBOL(ioread8);
+EXPORT_SYMBOL(ioread16);
+EXPORT_SYMBOL(ioread32);
+EXPORT_SYMBOL(ioread64);
+EXPORT_SYMBOL(iowrite8);
+EXPORT_SYMBOL(iowrite16);
+EXPORT_SYMBOL(iowrite32);
+EXPORT_SYMBOL(iowrite64);
+
+u8 inb(unsigned long port)
+{
+	return ioread8(ioport_map(port, 1));
+}
+
+u16 inw(unsigned long port)
+{
+	return ioread16(ioport_map(port, 2));
+}
+
+u32 inl(unsigned long port)
+{
+	return ioread32(ioport_map(port, 4));
+}
+
+void outb(u8 b, unsigned long port)
+{
+	iowrite8(b, ioport_map(port, 1));
+}
+
+void outw(u16 b, unsigned long port)
+{
+	iowrite16(b, ioport_map(port, 2));
+}
+
+void outl(u32 b, unsigned long port)
+{
+	iowrite32(b, ioport_map(port, 4));
+}
+
+EXPORT_SYMBOL(inb);
+EXPORT_SYMBOL(inw);
+EXPORT_SYMBOL(inl);
+EXPORT_SYMBOL(outb);
+EXPORT_SYMBOL(outw);
+EXPORT_SYMBOL(outl);
+
+u8 __raw_readb(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readb)(addr);
+}
+
+u16 __raw_readw(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readw)(addr);
+}
+
+u32 __raw_readl(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readl)(addr);
+}
+
+u64 __raw_readq(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readq)(addr);
+}
+
+void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeb)(b, addr);
+}
+
+void __raw_writew(u16 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writew)(b, addr);
+}
+
+void __raw_writel(u32 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writel)(b, addr);
+}
+
+void __raw_writeq(u64 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeq)(b, addr);
+}
+
+EXPORT_SYMBOL(__raw_readb); 
+EXPORT_SYMBOL(__raw_readw); 
+EXPORT_SYMBOL(__raw_readl); 
+EXPORT_SYMBOL(__raw_readq); 
+EXPORT_SYMBOL(__raw_writeb); 
+EXPORT_SYMBOL(__raw_writew); 
+EXPORT_SYMBOL(__raw_writel); 
+EXPORT_SYMBOL(__raw_writeq); 
+
+u8 readb(const volatile void __iomem *addr)
+{
+	u8 ret;
+	mb();
+	ret = __raw_readb(addr);
+	mb();
+	return ret;
+}
+
+u16 readw(const volatile void __iomem *addr)
+{
+	u16 ret;
+	mb();
+	ret = __raw_readw(addr);
+	mb();
+	return ret;
+}
+
+u32 readl(const volatile void __iomem *addr)
+{
+	u32 ret;
+	mb();
+	ret = __raw_readl(addr);
+	mb();
+	return ret;
+}
+
+u64 readq(const volatile void __iomem *addr)
+{
+	u64 ret;
+	mb();
+	ret = __raw_readq(addr);
+	mb();
+	return ret;
+}
+
+void writeb(u8 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeb(b, addr);
+}
+
+void writew(u16 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writew(b, addr);
+}
+
+void writel(u32 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writel(b, addr);
+}
+
+void writeq(u64 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeq(b, addr);
+}
+
+EXPORT_SYMBOL(readb);
+EXPORT_SYMBOL(readw);
+EXPORT_SYMBOL(readl);
+EXPORT_SYMBOL(readq);
+EXPORT_SYMBOL(writeb);
+EXPORT_SYMBOL(writew);
+EXPORT_SYMBOL(writel);
+EXPORT_SYMBOL(writeq);
+
+/*
+ * The _relaxed functions must be ordered w.r.t. each other, but they don't
+ * have to be ordered w.r.t. other memory accesses.
+ */
+u8 readb_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readb(addr);
+}
+
+u16 readw_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readw(addr);
+}
+
+u32 readl_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readl(addr);
+}
+
+u64 readq_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readq(addr);
+}
+
+EXPORT_SYMBOL(readb_relaxed);
+EXPORT_SYMBOL(readw_relaxed);
+EXPORT_SYMBOL(readl_relaxed);
+EXPORT_SYMBOL(readq_relaxed);
+
+/*
+ * Read COUNT 8-bit bytes from port PORT into memory starting at SRC.
+ */
+void ioread8_rep(const void __iomem *port, void *dst, unsigned long count)
+{
+	while ((unsigned long)dst & 0x3) {
+		if (!count)
+			return;
+		count--;
+		*(unsigned char *)dst = ioread8(port);
+		dst += 1;
+	}
+
+	while (count >= 4) {
+		unsigned int w;
+		count -= 4;
+		w = ioread8(port);
+		w |= ioread8(port) << 8;
+		w |= ioread8(port) << 16;
+		w |= ioread8(port) << 24;
+		*(unsigned int *)dst = w;
+		dst += 4;
+	}
+
+	while (count) {
+		--count;
+		*(unsigned char *)dst = ioread8(port);
+		dst += 1;
+	}
+}
+
+void insb(unsigned long port, void *dst, unsigned long count)
+{
+	ioread8_rep(ioport_map(port, 1), dst, count);
+}
+
+EXPORT_SYMBOL(ioread8_rep);
+EXPORT_SYMBOL(insb);
+
+/*
+ * Read COUNT 16-bit words from port PORT into memory starting at
+ * SRC.  SRC must be at least short aligned.  This is used by the
+ * IDE driver to read disk sectors.  Performance is important, but
+ * the interfaces seems to be slow: just using the inlined version
+ * of the inw() breaks things.
+ */
+void ioread16_rep(const void __iomem *port, void *dst, unsigned long count)
+{
+	if (unlikely((unsigned long)dst & 0x3)) {
+		if (!count)
+			return;
+		BUG_ON((unsigned long)dst & 0x1);
+		count--;
+		*(unsigned short *)dst = ioread16(port);
+		dst += 2;
+	}
+
+	while (count >= 2) {
+		unsigned int w;
+		count -= 2;
+		w = ioread16(port);
+		w |= ioread16(port) << 16;
+		*(unsigned int *)dst = w;
+		dst += 4;
+	}
+
+	if (count) {
+		*(unsigned short*)dst = ioread16(port);
+	}
+}
+
+void insw(unsigned long port, void *dst, unsigned long count)
+{
+	ioread16_rep(ioport_map(port, 2), dst, count);
+}
+
+EXPORT_SYMBOL(ioread16_rep);
+EXPORT_SYMBOL(insw);
+
+
+/*
+ * Read COUNT 32-bit words from port PORT into memory starting at
+ * SRC. Now works with any alignment in SRC. Performance is important,
+ * but the interfaces seems to be slow: just using the inlined version
+ * of the inl() breaks things.
+ */
+void ioread32_rep(const void __iomem *port, void *dst, unsigned long count)
+{
+	if (unlikely((unsigned long)dst & 0x3)) {
+		while (count--) {
+			struct S { int x __attribute__((packed)); };
+			((struct S *)dst)->x = ioread32(port);
+			dst += 4;
+		}
+	} else {
+		/* Buffer 32-bit aligned.  */
+		while (count--) {
+			*(unsigned int *)dst = ioread32(port);
+			dst += 4;
+		}
+	}
+}
+
+void insl(unsigned long port, void *dst, unsigned long count)
+{
+	ioread32_rep(ioport_map(port, 4), dst, count);
+}
+
+EXPORT_SYMBOL(ioread32_rep);
+EXPORT_SYMBOL(insl);
+
+
+/*
+ * Like insb but in the opposite direction.
+ * Don't worry as much about doing aligned memory transfers:
+ * doing byte reads the "slow" way isn't nearly as slow as
+ * doing byte writes the slow way (no r-m-w cycle).
+ */
+void iowrite8_rep(void __iomem *port, const void *xsrc, unsigned long count)
+{
+	const unsigned char *src = xsrc;
+	while (count--)
+		iowrite8(*src++, port);
+}
+
+void outsb(unsigned long port, const void *src, unsigned long count)
+{
+	iowrite8_rep(ioport_map(port, 1), src, count);
+}
+
+EXPORT_SYMBOL(iowrite8_rep);
+EXPORT_SYMBOL(outsb);
+
+
+/*
+ * Like insw but in the opposite direction.  This is used by the IDE
+ * driver to write disk sectors.  Performance is important, but the
+ * interfaces seems to be slow: just using the inlined version of the
+ * outw() breaks things.
+ */
+void iowrite16_rep(void __iomem *port, const void *src, unsigned long count)
+{
+	if (unlikely((unsigned long)src & 0x3)) {
+		if (!count)
+			return;
+		BUG_ON((unsigned long)src & 0x1);
+		iowrite16(*(unsigned short *)src, port);
+		src += 2;
+		--count;
+	}
+
+	while (count >= 2) {
+		unsigned int w;
+		count -= 2;
+		w = *(unsigned int *)src;
+		src += 4;
+		iowrite16(w >>  0, port);
+		iowrite16(w >> 16, port);
+	}
+
+	if (count) {
+		iowrite16(*(unsigned short *)src, port);
+	}
+}
+
+void outsw(unsigned long port, const void *src, unsigned long count)
+{
+	iowrite16_rep(ioport_map(port, 2), src, count);
+}
+
+EXPORT_SYMBOL(iowrite16_rep);
+EXPORT_SYMBOL(outsw);
+
+
+/*
+ * Like insl but in the opposite direction.  This is used by the IDE
+ * driver to write disk sectors.  Works with any alignment in SRC.
+ * Performance is important, but the interfaces seems to be slow:
+ * just using the inlined version of the outl() breaks things.
+ */
+void iowrite32_rep(void __iomem *port, const void *src, unsigned long count)
+{
+	if (unlikely((unsigned long)src & 0x3)) {
+		while (count--) {
+			struct S { int x __attribute__((packed)); };
+			iowrite32(((struct S *)src)->x, port);
+			src += 4;
+		}
+	} else {
+		/* Buffer 32-bit aligned.  */
+		while (count--) {
+			iowrite32(*(unsigned int *)src, port);
+			src += 4;
+		}
+	}
+}
+
+void outsl(unsigned long port, const void *src, unsigned long count)
+{
+	iowrite32_rep(ioport_map(port, 4), src, count);
+}
+
+EXPORT_SYMBOL(iowrite32_rep);
+EXPORT_SYMBOL(outsl);
+
+
+/*
+ * Copy data from IO memory space to "real" memory space.
+ * This needs to be optimized.
+ */
+void memcpy_fromio(void *to, const volatile void __iomem *from, long count)
+{
+	/* Optimize co-aligned transfers.  Everything else gets handled
+	   a byte at a time. */
+
+	if (count >= 8 && ((u64)to & 7) == ((u64)from & 7)) {
+		count -= 8;
+		do {
+			*(u64 *)to = __raw_readq(from);
+			count -= 8;
+			to += 8;
+			from += 8;
+		} while (count >= 0);
+		count += 8;
+	}
+
+	if (count >= 4 && ((u64)to & 3) == ((u64)from & 3)) {
+		count -= 4;
+		do {
+			*(u32 *)to = __raw_readl(from);
+			count -= 4;
+			to += 4;
+			from += 4;
+		} while (count >= 0);
+		count += 4;
+	}
+
+	if (count >= 2 && ((u64)to & 1) == ((u64)from & 1)) {
+		count -= 2;
+		do {
+			*(u16 *)to = __raw_readw(from);
+			count -= 2;
+			to += 2;
+			from += 2;
+		} while (count >= 0);
+		count += 2;
+	}
+
+	while (count > 0) {
+		*(u8 *) to = __raw_readb(from);
+		count--;
+		to++;
+		from++;
+	}
+	mb();
+}
+
+EXPORT_SYMBOL(memcpy_fromio);
+
+
+/*
+ * Copy data from "real" memory space to IO memory space.
+ * This needs to be optimized.
+ */
+void memcpy_toio(volatile void __iomem *to, const void *from, long count)
+{
+	/* Optimize co-aligned transfers.  Everything else gets handled
+	   a byte at a time. */
+	/* FIXME -- align FROM.  */
+
+	if (count >= 8 && ((u64)to & 7) == ((u64)from & 7)) {
+		count -= 8;
+		do {
+			__raw_writeq(*(const u64 *)from, to);
+			count -= 8;
+			to += 8;
+			from += 8;
+		} while (count >= 0);
+		count += 8;
+	}
+
+	if (count >= 4 && ((u64)to & 3) == ((u64)from & 3)) {
+		count -= 4;
+		do {
+			__raw_writel(*(const u32 *)from, to);
+			count -= 4;
+			to += 4;
+			from += 4;
+		} while (count >= 0);
+		count += 4;
+	}
+
+	if (count >= 2 && ((u64)to & 1) == ((u64)from & 1)) {
+		count -= 2;
+		do {
+			__raw_writew(*(const u16 *)from, to);
+			count -= 2;
+			to += 2;
+			from += 2;
+		} while (count >= 0);
+		count += 2;
+	}
+
+	while (count > 0) {
+		__raw_writeb(*(const u8 *) from, to);
+		count--;
+		to++;
+		from++;
+	}
+	mb();
+}
+
+EXPORT_SYMBOL(memcpy_toio);
+
+
+/*
+ * "memset" on IO memory space.
+ */
+void _memset_c_io(volatile void __iomem *to, unsigned long c, long count)
+{
+	/* Handle any initial odd byte */
+	if (count > 0 && ((u64)to & 1)) {
+		__raw_writeb(c, to);
+		to++;
+		count--;
+	}
+
+	/* Handle any initial odd halfword */
+	if (count >= 2 && ((u64)to & 2)) {
+		__raw_writew(c, to);
+		to += 2;
+		count -= 2;
+	}
+
+	/* Handle any initial odd word */
+	if (count >= 4 && ((u64)to & 4)) {
+		__raw_writel(c, to);
+		to += 4;
+		count -= 4;
+	}
+
+	/* Handle all full-sized quadwords: we're aligned
+	   (or have a small count) */
+	count -= 8;
+	if (count >= 0) {
+		do {
+			__raw_writeq(c, to);
+			to += 8;
+			count -= 8;
+		} while (count >= 0);
+	}
+	count += 8;
+
+	/* The tail is word-aligned if we still have count >= 4 */
+	if (count >= 4) {
+		__raw_writel(c, to);
+		to += 4;
+		count -= 4;
+	}
+
+	/* The tail is half-word aligned if we have count >= 2 */
+	if (count >= 2) {
+		__raw_writew(c, to);
+		to += 2;
+		count -= 2;
+	}
+
+	/* And finally, one last byte.. */
+	if (count) {
+		__raw_writeb(c, to);
+	}
+	mb();
+}
+
+EXPORT_SYMBOL(_memset_c_io);
+
+/* A version of memcpy used by the vga console routines to move data around
+   arbitrarily between screen and main memory.  */
+
+void
+scr_memcpyw(u16 *d, const u16 *s, unsigned int count)
+{
+	const u16 __iomem *ios = (const u16 __iomem *) s;
+	u16 __iomem *iod = (u16 __iomem *) d;
+	int s_isio = __is_ioaddr(s);
+	int d_isio = __is_ioaddr(d);
+
+	if (s_isio) {
+		if (d_isio) {
+			/* FIXME: Should handle unaligned ops and
+			   operation widening.  */
+
+			count /= 2;
+			while (count--) {
+				u16 tmp = __raw_readw(ios++);
+				__raw_writew(tmp, iod++);
+			}
+		}
+		else
+			memcpy_fromio(d, ios, count);
+	} else {
+		if (d_isio)
+			memcpy_toio(iod, s, count);
+		else
+			memcpy(d, s, count);
+	}
+}
+
+EXPORT_SYMBOL(scr_memcpyw);
+
+void __iomem *ioport_map(unsigned long port, unsigned int size)
+{
+	return IO_CONCAT(__IO_PREFIX,ioportmap) (port);
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+}
+
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
new file mode 100644
index 000000000..15f2effd6
--- /dev/null
+++ b/arch/alpha/kernel/irq.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/irq.c
+ *
+ *	Copyright (C) 1995 Linus Torvalds
+ *
+ * This file contains the code used by various IRQ handling routines:
+ * asking for different IRQ's should be done through these routines
+ * instead of just grabbing them. Thus setups with different IRQ numbers
+ * shouldn't result in any weird surprises, and installing new handlers
+ * should be easier.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/interrupt.h>
+#include <linux/random.h>
+#include <linux/irq.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/profile.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <linux/uaccess.h>
+
+volatile unsigned long irq_err_count;
+DEFINE_PER_CPU(unsigned long, irq_pmi_count);
+
+void ack_bad_irq(unsigned int irq)
+{
+	irq_err_count++;
+	printk(KERN_CRIT "Unexpected IRQ trap at vector %u\n", irq);
+}
+
+#ifdef CONFIG_SMP 
+static char irq_user_affinity[NR_IRQS];
+
+int irq_select_affinity(unsigned int irq)
+{
+	struct irq_data *data = irq_get_irq_data(irq);
+	struct irq_chip *chip;
+	static int last_cpu;
+	int cpu = last_cpu + 1;
+
+	if (!data)
+		return 1;
+	chip = irq_data_get_irq_chip(data);
+
+	if (!chip->irq_set_affinity || irq_user_affinity[irq])
+		return 1;
+
+	while (!cpu_possible(cpu) ||
+	       !cpumask_test_cpu(cpu, irq_default_affinity))
+		cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0);
+	last_cpu = cpu;
+
+	irq_data_update_affinity(data, cpumask_of(cpu));
+	chip->irq_set_affinity(data, cpumask_of(cpu), false);
+	return 0;
+}
+#endif /* CONFIG_SMP */
+
+int arch_show_interrupts(struct seq_file *p, int prec)
+{
+	int j;
+
+#ifdef CONFIG_SMP
+	seq_puts(p, "IPI: ");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
+	seq_putc(p, '\n');
+#endif
+	seq_puts(p, "PMI: ");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
+	seq_puts(p, "          Performance Monitoring\n");
+	seq_printf(p, "ERR: %10lu\n", irq_err_count);
+	return 0;
+}
+
+/*
+ * handle_irq handles all normal device IRQ's (the special
+ * SMP cross-CPU interrupts have their own specific
+ * handlers).
+ */
+
+#define MAX_ILLEGAL_IRQS 16
+
+void
+handle_irq(int irq)
+{	
+	/* 
+	 * We ack quickly, we don't want the irq controller
+	 * thinking we're snobs just because some other CPU has
+	 * disabled global interrupts (we have already done the
+	 * INT_ACK cycles, it's too late to try to pretend to the
+	 * controller that we aren't taking the interrupt).
+	 *
+	 * 0 return value means that this irq is already being
+	 * handled by some other CPU. (or is disabled)
+	 */
+	static unsigned int illegal_count=0;
+	struct irq_desc *desc = irq_to_desc(irq);
+	
+	if (!desc || ((unsigned) irq > ACTUAL_NR_IRQS &&
+	    illegal_count < MAX_ILLEGAL_IRQS)) {
+		irq_err_count++;
+		illegal_count++;
+		printk(KERN_CRIT "device_interrupt: invalid interrupt %d\n",
+		       irq);
+		return;
+	}
+
+	irq_enter();
+	generic_handle_irq_desc(desc);
+	irq_exit();
+}
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
new file mode 100644
index 000000000..d17e44c99
--- /dev/null
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Alpha specific irq code.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+
+#include <asm/machvec.h>
+#include <asm/dma.h>
+#include <asm/perf_event.h>
+#include <asm/mce.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+/* Hack minimum IPL during interrupt processing for broken hardware.  */
+#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
+int __min_ipl;
+EXPORT_SYMBOL(__min_ipl);
+#endif
+
+/*
+ * Performance counter hook.  A module can override this to
+ * do something useful.
+ */
+static void
+dummy_perf(unsigned long vector, struct pt_regs *regs)
+{
+	irq_err_count++;
+	printk(KERN_CRIT "Performance counter interrupt!\n");
+}
+
+void (*perf_irq)(unsigned long, struct pt_regs *) = dummy_perf;
+EXPORT_SYMBOL(perf_irq);
+
+/*
+ * The main interrupt entry point.
+ */
+
+asmlinkage void 
+do_entInt(unsigned long type, unsigned long vector,
+	  unsigned long la_ptr, struct pt_regs *regs)
+{
+	struct pt_regs *old_regs;
+
+	/*
+	 * Disable interrupts during IRQ handling.
+	 * Note that there is no matching local_irq_enable() due to
+	 * severe problems with RTI at IPL0 and some MILO PALcode
+	 * (namely LX164).
+	 */
+	local_irq_disable();
+	switch (type) {
+	case 0:
+#ifdef CONFIG_SMP
+		handle_ipi(regs);
+		return;
+#else
+		irq_err_count++;
+		printk(KERN_CRIT "Interprocessor interrupt? "
+		       "You must be kidding!\n");
+#endif
+		break;
+	case 1:
+		old_regs = set_irq_regs(regs);
+		handle_irq(RTC_IRQ);
+		set_irq_regs(old_regs);
+		return;
+	case 2:
+		old_regs = set_irq_regs(regs);
+		alpha_mv.machine_check(vector, la_ptr);
+		set_irq_regs(old_regs);
+		return;
+	case 3:
+		old_regs = set_irq_regs(regs);
+		alpha_mv.device_interrupt(vector);
+		set_irq_regs(old_regs);
+		return;
+	case 4:
+		perf_irq(la_ptr, regs);
+		return;
+	default:
+		printk(KERN_CRIT "Hardware intr %ld %lx? Huh?\n",
+		       type, vector);
+	}
+	printk(KERN_CRIT "PC = %016lx PS=%04lx\n", regs->pc, regs->ps);
+}
+
+void __init
+common_init_isa_dma(void)
+{
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(0, DMA1_CLR_MASK_REG);
+	outb(0, DMA2_CLR_MASK_REG);
+}
+
+void __init
+init_IRQ(void)
+{
+	/* Just in case the platform init_irq() causes interrupts/mchecks
+	   (as is the case with RAWHIDE, at least).  */
+	wrent(entInt, 0);
+
+	alpha_mv.init_irq();
+}
+
+/*
+ * machine error checks
+ */
+#define MCHK_K_TPERR           0x0080
+#define MCHK_K_TCPERR          0x0082
+#define MCHK_K_HERR            0x0084
+#define MCHK_K_ECC_C           0x0086
+#define MCHK_K_ECC_NC          0x0088
+#define MCHK_K_OS_BUGCHECK     0x008A
+#define MCHK_K_PAL_BUGCHECK    0x0090
+
+#ifndef CONFIG_SMP
+struct mcheck_info __mcheck_info;
+#endif
+
+void
+process_mcheck_info(unsigned long vector, unsigned long la_ptr,
+		    const char *machine, int expected)
+{
+	struct el_common *mchk_header;
+	const char *reason;
+
+	/*
+	 * See if the machine check is due to a badaddr() and if so,
+	 * ignore it.
+	 */
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		printk(KERN_CRIT "%s machine check %s\n", machine,
+		       expected ? "expected." : "NOT expected!!!");
+	}
+#endif
+
+	if (expected) {
+		int cpu = smp_processor_id();
+		mcheck_expected(cpu) = 0;
+		mcheck_taken(cpu) = 1;
+		return;
+	}
+
+	mchk_header = (struct el_common *)la_ptr;
+
+	printk(KERN_CRIT "%s machine check: vector=0x%lx pc=0x%lx code=0x%x\n",
+	       machine, vector, get_irq_regs()->pc, mchk_header->code);
+
+	switch (mchk_header->code) {
+	/* Machine check reasons.  Defined according to PALcode sources.  */
+	case 0x80: reason = "tag parity error"; break;
+	case 0x82: reason = "tag control parity error"; break;
+	case 0x84: reason = "generic hard error"; break;
+	case 0x86: reason = "correctable ECC error"; break;
+	case 0x88: reason = "uncorrectable ECC error"; break;
+	case 0x8A: reason = "OS-specific PAL bugcheck"; break;
+	case 0x90: reason = "callsys in kernel mode"; break;
+	case 0x96: reason = "i-cache read retryable error"; break;
+	case 0x98: reason = "processor detected hard error"; break;
+	
+	/* System specific (these are for Alcor, at least): */
+	case 0x202: reason = "system detected hard error"; break;
+	case 0x203: reason = "system detected uncorrectable ECC error"; break;
+	case 0x204: reason = "SIO SERR occurred on PCI bus"; break;
+	case 0x205: reason = "parity error detected by core logic"; break;
+	case 0x206: reason = "SIO IOCHK occurred on ISA bus"; break;
+	case 0x207: reason = "non-existent memory error"; break;
+	case 0x208: reason = "MCHK_K_DCSR"; break;
+	case 0x209: reason = "PCI SERR detected"; break;
+	case 0x20b: reason = "PCI data parity error detected"; break;
+	case 0x20d: reason = "PCI address parity error detected"; break;
+	case 0x20f: reason = "PCI master abort error"; break;
+	case 0x211: reason = "PCI target abort error"; break;
+	case 0x213: reason = "scatter/gather PTE invalid error"; break;
+	case 0x215: reason = "flash ROM write error"; break;
+	case 0x217: reason = "IOA timeout detected"; break;
+	case 0x219: reason = "IOCHK#, EISA add-in board parity or other catastrophic error"; break;
+	case 0x21b: reason = "EISA fail-safe timer timeout"; break;
+	case 0x21d: reason = "EISA bus time-out"; break;
+	case 0x21f: reason = "EISA software generated NMI"; break;
+	case 0x221: reason = "unexpected ev5 IRQ[3] interrupt"; break;
+	default: reason = "unknown"; break;
+	}
+
+	printk(KERN_CRIT "machine check type: %s%s\n",
+	       reason, mchk_header->retry ? " (retryable)" : "");
+
+	dik_show_regs(get_irq_regs(), NULL);
+
+#ifdef CONFIG_VERBOSE_MCHECK
+	if (alpha_verbose_mcheck > 1) {
+		/* Dump the logout area to give all info.  */
+		unsigned long *ptr = (unsigned long *)la_ptr;
+		long i;
+		for (i = 0; i < mchk_header->size / sizeof(long); i += 2) {
+			printk(KERN_CRIT "   +%8lx %016lx %016lx\n",
+			       i*sizeof(long), ptr[i], ptr[i+1]);
+		}
+	}
+#endif /* CONFIG_VERBOSE_MCHECK */
+}
+
+/*
+ * The special RTC interrupt type.  The interrupt itself was
+ * processed by PALcode, and comes in via entInt vector 1.
+ */
+void __init
+init_rtc_irq(irq_handler_t handler)
+{
+	irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
+				      handle_percpu_irq, "RTC");
+	if (!handler)
+		handler = rtc_timer_interrupt;
+	if (request_irq(RTC_IRQ, handler, 0, "timer", NULL))
+		pr_err("Failed to register timer interrupt\n");
+}
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
new file mode 100644
index 000000000..1dcf0d903
--- /dev/null
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *      linux/arch/alpha/kernel/irq_i8259.c
+ *
+ * This is the 'legacy' 8259A Programmable Interrupt Controller,
+ * present in the majority of PC/AT boxes.
+ *
+ * Started hacking from linux-2.3.30pre6/arch/i386/kernel/i8259.c.
+ */
+
+#include <linux/init.h>
+#include <linux/cache.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+
+/* Note mask bit is true for DISABLED irqs.  */
+static unsigned int cached_irq_mask = 0xffff;
+static DEFINE_SPINLOCK(i8259_irq_lock);
+
+static inline void
+i8259_update_irq_hw(unsigned int irq, unsigned long mask)
+{
+	int port = 0x21;
+	if (irq & 8) mask >>= 8;
+	if (irq & 8) port = 0xA1;
+	outb(mask, port);
+}
+
+inline void
+i8259a_enable_irq(struct irq_data *d)
+{
+	spin_lock(&i8259_irq_lock);
+	i8259_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq));
+	spin_unlock(&i8259_irq_lock);
+}
+
+static inline void
+__i8259a_disable_irq(unsigned int irq)
+{
+	i8259_update_irq_hw(irq, cached_irq_mask |= 1 << irq);
+}
+
+void
+i8259a_disable_irq(struct irq_data *d)
+{
+	spin_lock(&i8259_irq_lock);
+	__i8259a_disable_irq(d->irq);
+	spin_unlock(&i8259_irq_lock);
+}
+
+void
+i8259a_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	spin_lock(&i8259_irq_lock);
+	__i8259a_disable_irq(irq);
+
+	/* Ack the interrupt making it the lowest priority.  */
+	if (irq >= 8) {
+		outb(0xE0 | (irq - 8), 0xa0);   /* ack the slave */
+		irq = 2;
+	}
+	outb(0xE0 | irq, 0x20);			/* ack the master */
+	spin_unlock(&i8259_irq_lock);
+}
+
+struct irq_chip i8259a_irq_type = {
+	.name		= "XT-PIC",
+	.irq_unmask	= i8259a_enable_irq,
+	.irq_mask	= i8259a_disable_irq,
+	.irq_mask_ack	= i8259a_mask_and_ack_irq,
+};
+
+void __init
+init_i8259a_irqs(void)
+{
+	long i;
+
+	outb(0xff, 0x21);	/* mask all of 8259A-1 */
+	outb(0xff, 0xA1);	/* mask all of 8259A-2 */
+
+	for (i = 0; i < 16; i++) {
+		irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
+	}
+
+	if (request_irq(2, no_action, 0, "cascade", NULL))
+		pr_err("Failed to request irq 2 (cascade)\n");
+}
+
+
+#if defined(CONFIG_ALPHA_GENERIC)
+# define IACK_SC	alpha_mv.iack_sc
+#elif defined(CONFIG_ALPHA_APECS)
+# define IACK_SC	APECS_IACK_SC
+#elif defined(CONFIG_ALPHA_LCA)
+# define IACK_SC	LCA_IACK_SC
+#elif defined(CONFIG_ALPHA_CIA)
+# define IACK_SC	CIA_IACK_SC
+#elif defined(CONFIG_ALPHA_PYXIS)
+# define IACK_SC	PYXIS_IACK_SC
+#elif defined(CONFIG_ALPHA_TITAN)
+# define IACK_SC	TITAN_IACK_SC
+#elif defined(CONFIG_ALPHA_TSUNAMI)
+# define IACK_SC	TSUNAMI_IACK_SC
+#elif defined(CONFIG_ALPHA_IRONGATE)
+# define IACK_SC        IRONGATE_IACK_SC
+#endif
+/* Note that CONFIG_ALPHA_POLARIS is intentionally left out here, since
+   sys_rx164 wants to use isa_no_iack_sc_device_interrupt for some reason.  */
+
+#if defined(IACK_SC)
+void
+isa_device_interrupt(unsigned long vector)
+{
+	/*
+	 * Generate a PCI interrupt acknowledge cycle.  The PIC will
+	 * respond with the interrupt vector of the highest priority
+	 * interrupt that is pending.  The PALcode sets up the
+	 * interrupts vectors such that irq level L generates vector L.
+	 */
+	int j = *(vuip) IACK_SC;
+	j &= 0xff;
+	handle_irq(j);
+}
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || !defined(IACK_SC)
+void
+isa_no_iack_sc_device_interrupt(unsigned long vector)
+{
+	unsigned long pic;
+
+	/*
+	 * It seems to me that the probability of two or more *device*
+	 * interrupts occurring at almost exactly the same time is
+	 * pretty low.  So why pay the price of checking for
+	 * additional interrupts here if the common case can be
+	 * handled so much easier?
+	 */
+	/* 
+	 *  The first read of gives you *all* interrupting lines.
+	 *  Therefore, read the mask register and and out those lines
+	 *  not enabled.  Note that some documentation has 21 and a1 
+	 *  write only.  This is not true.
+	 */
+	pic = inb(0x20) | (inb(0xA0) << 8);	/* read isr */
+	pic &= 0xFFFB;				/* mask out cascade & hibits */
+
+	while (pic) {
+		int j = ffz(~pic);
+		pic &= pic - 1;
+		handle_irq(j);
+	}
+}
+#endif
diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h
new file mode 100644
index 000000000..fbf21892e
--- /dev/null
+++ b/arch/alpha/kernel/irq_impl.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/arch/alpha/kernel/irq_impl.h
+ *
+ *	Copyright (C) 1995 Linus Torvalds
+ *	Copyright (C) 1998, 2000 Richard Henderson
+ *
+ * This file contains declarations and inline functions for interfacing
+ * with the IRQ handling routines in irq.c.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/profile.h>
+
+
+#define RTC_IRQ    8
+
+extern void isa_device_interrupt(unsigned long);
+extern void isa_no_iack_sc_device_interrupt(unsigned long);
+extern void srm_device_interrupt(unsigned long);
+extern void pyxis_device_interrupt(unsigned long);
+
+extern void init_srm_irqs(long, unsigned long);
+extern void init_pyxis_irqs(unsigned long);
+extern void init_rtc_irq(irq_handler_t  handler);
+
+extern void common_init_isa_dma(void);
+
+extern void i8259a_enable_irq(struct irq_data *d);
+extern void i8259a_disable_irq(struct irq_data *d);
+extern void i8259a_mask_and_ack_irq(struct irq_data *d);
+extern struct irq_chip i8259a_irq_type;
+extern void init_i8259a_irqs(void);
+
+extern void handle_irq(int irq);
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
new file mode 100644
index 000000000..27070b5bd
--- /dev/null
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/irq_pyxis.c
+ *
+ * Based on code written by David A Rusling (david.rusling@reo.mts.dec.com).
+ *
+ * IRQ Code common to all PYXIS core logic chips.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+
+#include <asm/io.h>
+#include <asm/core_cia.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+static unsigned long cached_irq_mask;
+
+static inline void
+pyxis_update_irq_hw(unsigned long mask)
+{
+	*(vulp)PYXIS_INT_MASK = mask;
+	mb();
+	*(vulp)PYXIS_INT_MASK;
+}
+
+static inline void
+pyxis_enable_irq(struct irq_data *d)
+{
+	pyxis_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16));
+}
+
+static void
+pyxis_disable_irq(struct irq_data *d)
+{
+	pyxis_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16)));
+}
+
+static void
+pyxis_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned long bit = 1UL << (d->irq - 16);
+	unsigned long mask = cached_irq_mask &= ~bit;
+
+	/* Disable the interrupt.  */
+	*(vulp)PYXIS_INT_MASK = mask;
+	wmb();
+	/* Ack PYXIS PCI interrupt.  */
+	*(vulp)PYXIS_INT_REQ = bit;
+	mb();
+	/* Re-read to force both writes.  */
+	*(vulp)PYXIS_INT_MASK;
+}
+
+static struct irq_chip pyxis_irq_type = {
+	.name		= "PYXIS",
+	.irq_mask_ack	= pyxis_mask_and_ack_irq,
+	.irq_mask	= pyxis_disable_irq,
+	.irq_unmask	= pyxis_enable_irq,
+};
+
+void 
+pyxis_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary register of PYXIS */
+	pld = *(vulp)PYXIS_INT_REQ;
+	pld &= cached_irq_mask;
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i == 7)
+			isa_device_interrupt(vector);
+		else
+			handle_irq(16+i);
+	}
+}
+
+void __init
+init_pyxis_irqs(unsigned long ignore_mask)
+{
+	long i;
+
+	*(vulp)PYXIS_INT_MASK = 0;		/* disable all */
+	*(vulp)PYXIS_INT_REQ  = -1;		/* flush all */
+	mb();
+
+	/* Send -INTA pulses to clear any pending interrupts ...*/
+	*(vuip) CIA_IACK_SC;
+
+	for (i = 16; i < 48; ++i) {
+		if ((ignore_mask >> i) & 1)
+			continue;
+		irq_set_chip_and_handler(i, &pyxis_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	if (request_irq(16 + 7, no_action, 0, "isa-cascade", NULL))
+		pr_err("Failed to register isa-cascade interrupt\n");
+}
diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c
new file mode 100644
index 000000000..bfacd6a06
--- /dev/null
+++ b/arch/alpha/kernel/irq_srm.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Handle interrupts from the SRM, assuming no additional weirdness.
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+
+/*
+ * Is the palcode SMP safe? In other words: can we call cserve_ena/dis
+ * at the same time in multiple CPUs? To be safe I added a spinlock
+ * but it can be removed trivially if the palcode is robust against smp.
+ */
+DEFINE_SPINLOCK(srm_irq_lock);
+
+static inline void
+srm_enable_irq(struct irq_data *d)
+{
+	spin_lock(&srm_irq_lock);
+	cserve_ena(d->irq - 16);
+	spin_unlock(&srm_irq_lock);
+}
+
+static void
+srm_disable_irq(struct irq_data *d)
+{
+	spin_lock(&srm_irq_lock);
+	cserve_dis(d->irq - 16);
+	spin_unlock(&srm_irq_lock);
+}
+
+/* Handle interrupts from the SRM, assuming no additional weirdness.  */
+static struct irq_chip srm_irq_type = {
+	.name		= "SRM",
+	.irq_unmask	= srm_enable_irq,
+	.irq_mask	= srm_disable_irq,
+	.irq_mask_ack	= srm_disable_irq,
+};
+
+void __init
+init_srm_irqs(long max, unsigned long ignore_mask)
+{
+	long i;
+
+	if (NR_IRQS <= 16)
+		return;
+	for (i = 16; i < max; ++i) {
+		if (i < 64 && ((ignore_mask >> i) & 1))
+			continue;
+		irq_set_chip_and_handler(i, &srm_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+}
+
+void 
+srm_device_interrupt(unsigned long vector)
+{
+	int irq = (vector - 0x800) >> 4;
+	handle_irq(irq);
+}
diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h
new file mode 100644
index 000000000..c2ebcb39e
--- /dev/null
+++ b/arch/alpha/kernel/machvec_impl.h
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/arch/alpha/kernel/machvec_impl.h
+ *
+ *	Copyright (C) 1997, 1998  Richard Henderson
+ *
+ * This file has goodies to help simplify instantiation of machine vectors.
+ */
+
+/* Whee.  These systems don't have an HAE:
+       IRONGATE, MARVEL, POLARIS, TSUNAMI, TITAN, WILDFIRE
+   Fix things up for the GENERIC kernel by defining the HAE address
+   to be that of the cache. Now we can read and write it as we like.  ;-)  */
+#define IRONGATE_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#define MARVEL_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#define POLARIS_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#define TSUNAMI_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#define TITAN_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#define WILDFIRE_HAE_ADDRESS	(&alpha_mv.hae_cache)
+
+#ifdef CIA_ONE_HAE_WINDOW
+#define CIA_HAE_ADDRESS		(&alpha_mv.hae_cache)
+#endif
+#ifdef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_HAE_ADDRESS	(&alpha_mv.hae_cache)
+#endif
+#ifdef T2_ONE_HAE_WINDOW
+#define T2_HAE_ADDRESS		(&alpha_mv.hae_cache)
+#endif
+
+/* Only a few systems don't define IACK_SC, handling all interrupts through
+   the SRM console.  But splitting out that one case from IO() below
+   seems like such a pain.  Define this to get things to compile.  */
+#define JENSEN_IACK_SC		1
+#define T2_IACK_SC		1
+#define WILDFIRE_IACK_SC	1 /* FIXME */
+
+/*
+ * Some helpful macros for filling in the blanks.
+ */
+
+#define CAT1(x,y)  x##y
+#define CAT(x,y)   CAT1(x,y)
+
+#define DO_DEFAULT_RTC			.rtc_port = 0x70
+
+#define DO_EV4_MMU							\
+	.max_asn =			EV4_MAX_ASN,			\
+	.mv_switch_mm =			ev4_switch_mm,			\
+	.mv_activate_mm =		ev4_activate_mm,		\
+	.mv_flush_tlb_current =		ev4_flush_tlb_current,		\
+	.mv_flush_tlb_current_page =	ev4_flush_tlb_current_page
+
+#define DO_EV5_MMU							\
+	.max_asn =			EV5_MAX_ASN,			\
+	.mv_switch_mm =			ev5_switch_mm,			\
+	.mv_activate_mm =		ev5_activate_mm,		\
+	.mv_flush_tlb_current =		ev5_flush_tlb_current,		\
+	.mv_flush_tlb_current_page =	ev5_flush_tlb_current_page
+
+#define DO_EV6_MMU							\
+	.max_asn =			EV6_MAX_ASN,			\
+	.mv_switch_mm =			ev5_switch_mm,			\
+	.mv_activate_mm =		ev5_activate_mm,		\
+	.mv_flush_tlb_current =		ev5_flush_tlb_current,		\
+	.mv_flush_tlb_current_page =	ev5_flush_tlb_current_page
+
+#define DO_EV7_MMU							\
+	.max_asn =			EV6_MAX_ASN,			\
+	.mv_switch_mm =			ev5_switch_mm,			\
+	.mv_activate_mm =		ev5_activate_mm,		\
+	.mv_flush_tlb_current =		ev5_flush_tlb_current,		\
+	.mv_flush_tlb_current_page =	ev5_flush_tlb_current_page
+
+#define IO_LITE(UP,low)							\
+	.hae_register =		(unsigned long *) CAT(UP,_HAE_ADDRESS),	\
+	.iack_sc =		CAT(UP,_IACK_SC),			\
+	.mv_ioread8 =		CAT(low,_ioread8),			\
+	.mv_ioread16 =		CAT(low,_ioread16),			\
+	.mv_ioread32 =		CAT(low,_ioread32),			\
+	.mv_ioread64 =		CAT(low,_ioread64),			\
+	.mv_iowrite8 =		CAT(low,_iowrite8),			\
+	.mv_iowrite16 =		CAT(low,_iowrite16),			\
+	.mv_iowrite32 =		CAT(low,_iowrite32),			\
+	.mv_iowrite64 =		CAT(low,_iowrite64),			\
+	.mv_readb =		CAT(low,_readb),			\
+	.mv_readw =		CAT(low,_readw),			\
+	.mv_readl =		CAT(low,_readl),			\
+	.mv_readq =		CAT(low,_readq),			\
+	.mv_writeb =		CAT(low,_writeb),			\
+	.mv_writew =		CAT(low,_writew),			\
+	.mv_writel =		CAT(low,_writel),			\
+	.mv_writeq =		CAT(low,_writeq),			\
+	.mv_ioportmap =		CAT(low,_ioportmap),			\
+	.mv_ioremap =		CAT(low,_ioremap),			\
+	.mv_iounmap =		CAT(low,_iounmap),			\
+	.mv_is_ioaddr =		CAT(low,_is_ioaddr),			\
+	.mv_is_mmio =		CAT(low,_is_mmio)			\
+
+#define IO(UP,low)							\
+	IO_LITE(UP,low),						\
+	.pci_ops =		&CAT(low,_pci_ops),			\
+	.mv_pci_tbi =		CAT(low,_pci_tbi)
+
+#define DO_APECS_IO	IO(APECS,apecs)
+#define DO_CIA_IO	IO(CIA,cia)
+#define DO_IRONGATE_IO	IO(IRONGATE,irongate)
+#define DO_LCA_IO	IO(LCA,lca)
+#define DO_MARVEL_IO	IO(MARVEL,marvel)
+#define DO_MCPCIA_IO	IO(MCPCIA,mcpcia)
+#define DO_POLARIS_IO	IO(POLARIS,polaris)
+#define DO_T2_IO	IO(T2,t2)
+#define DO_TSUNAMI_IO	IO(TSUNAMI,tsunami)
+#define DO_TITAN_IO	IO(TITAN,titan)
+#define DO_WILDFIRE_IO	IO(WILDFIRE,wildfire)
+
+#define DO_PYXIS_IO	IO_LITE(CIA,cia_bwx), \
+			.pci_ops = &cia_pci_ops, \
+			.mv_pci_tbi = cia_pci_tbi
+
+/*
+ * In a GENERIC kernel, we have lots of these vectors floating about,
+ * all but one of which we want to go away.  In a non-GENERIC kernel,
+ * we want only one, ever.
+ *
+ * Accomplish this in the GENERIC kernel by putting all of the vectors
+ * in the .init.data section where they'll go away.  We'll copy the
+ * one we want to the real alpha_mv vector in setup_arch.
+ *
+ * Accomplish this in a non-GENERIC kernel by ifdef'ing out all but
+ * one of the vectors, which will not reside in .init.data.  We then
+ * alias this one vector to alpha_mv, so no copy is needed.
+ *
+ * Upshot: set __initdata to nothing for non-GENERIC kernels.
+ */
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define __initmv __initdata
+#define ALIAS_MV(x)
+#else
+#define __initmv __refdata
+
+/* GCC actually has a syntax for defining aliases, but is under some
+   delusion that you shouldn't be able to declare it extern somewhere
+   else beforehand.  Fine.  We'll do it ourselves.  */
+#if 0
+#define ALIAS_MV(system) \
+  struct alpha_machine_vector alpha_mv __attribute__((alias(#system "_mv"))); \
+  EXPORT_SYMBOL(alpha_mv);
+#else
+#define ALIAS_MV(system) \
+  asm(".global alpha_mv\nalpha_mv = " #system "_mv"); \
+  EXPORT_SYMBOL(alpha_mv);
+#endif
+#endif /* GENERIC */
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
new file mode 100644
index 000000000..cbefa5a77
--- /dev/null
+++ b/arch/alpha/kernel/module.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*  Kernel module help for Alpha.
+    Copyright (C) 2002 Richard Henderson.
+
+*/
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(fmt...)
+#endif
+
+/* Allocate the GOT at the end of the core sections.  */
+
+struct got_entry {
+	struct got_entry *next;
+	Elf64_Sxword r_addend;
+	int got_offset;
+};
+
+static inline void
+process_reloc_for_got(Elf64_Rela *rela,
+		      struct got_entry *chains, Elf64_Xword *poffset)
+{
+	unsigned long r_sym = ELF64_R_SYM (rela->r_info);
+	unsigned long r_type = ELF64_R_TYPE (rela->r_info);
+	Elf64_Sxword r_addend = rela->r_addend;
+	struct got_entry *g;
+
+	if (r_type != R_ALPHA_LITERAL)
+		return;
+
+	for (g = chains + r_sym; g ; g = g->next)
+		if (g->r_addend == r_addend) {
+			if (g->got_offset == 0) {
+				g->got_offset = *poffset;
+				*poffset += 8;
+			}
+			goto found_entry;
+		}
+
+	g = kmalloc (sizeof (*g), GFP_KERNEL);
+	g->next = chains[r_sym].next;
+	g->r_addend = r_addend;
+	g->got_offset = *poffset;
+	*poffset += 8;
+	chains[r_sym].next = g;
+
+ found_entry:
+	/* Trick: most of the ELF64_R_TYPE field is unused.  There are
+	   42 valid relocation types, and a 32-bit field.  Co-opt the
+	   bits above 256 to store the got offset for this reloc.  */
+	rela->r_info |= g->got_offset << 8;
+}
+
+int
+module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs,
+			  char *secstrings, struct module *me)
+{
+	struct got_entry *chains;
+	Elf64_Rela *rela;
+	Elf64_Shdr *esechdrs, *symtab, *s, *got;
+	unsigned long nsyms, nrela, i;
+
+	esechdrs = sechdrs + hdr->e_shnum;
+	symtab = got = NULL;
+
+	/* Find out how large the symbol table is.  Allocate one got_entry
+	   head per symbol.  Normally this will be enough, but not always.
+	   We'll chain different offsets for the symbol down each head.  */
+	for (s = sechdrs; s < esechdrs; ++s)
+		if (s->sh_type == SHT_SYMTAB)
+			symtab = s;
+		else if (!strcmp(".got", secstrings + s->sh_name)) {
+			got = s;
+			me->arch.gotsecindex = s - sechdrs;
+		}
+
+	if (!symtab) {
+		printk(KERN_ERR "module %s: no symbol table\n", me->name);
+		return -ENOEXEC;
+	}
+	if (!got) {
+		printk(KERN_ERR "module %s: no got section\n", me->name);
+		return -ENOEXEC;
+	}
+
+	nsyms = symtab->sh_size / sizeof(Elf64_Sym);
+	chains = kcalloc(nsyms, sizeof(struct got_entry), GFP_KERNEL);
+	if (!chains) {
+		printk(KERN_ERR
+		       "module %s: no memory for symbol chain buffer\n",
+		       me->name);
+		return -ENOMEM;
+	}
+
+	got->sh_size = 0;
+	got->sh_addralign = 8;
+	got->sh_type = SHT_NOBITS;
+
+	/* Examine all LITERAL relocations to find out what GOT entries
+	   are required.  This sizes the GOT section as well.  */
+	for (s = sechdrs; s < esechdrs; ++s)
+		if (s->sh_type == SHT_RELA) {
+			nrela = s->sh_size / sizeof(Elf64_Rela);
+			rela = (void *)hdr + s->sh_offset;
+			for (i = 0; i < nrela; ++i)
+				process_reloc_for_got(rela+i, chains,
+						      &got->sh_size);
+		}
+
+	/* Free the memory we allocated.  */
+	for (i = 0; i < nsyms; ++i) {
+		struct got_entry *g, *n;
+		for (g = chains[i].next; g ; g = n) {
+			n = g->next;
+			kfree(g);
+		}
+	}
+	kfree(chains);
+
+	return 0;
+}
+
+int
+apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
+		   unsigned int symindex, unsigned int relsec,
+		   struct module *me)
+{
+	Elf64_Rela *rela = (void *)sechdrs[relsec].sh_addr;
+	unsigned long i, n = sechdrs[relsec].sh_size / sizeof(*rela);
+	Elf64_Sym *symtab, *sym;
+	void *base, *location;
+	unsigned long got, gp;
+
+	DEBUGP("Applying relocate section %u to %u\n", relsec,
+	       sechdrs[relsec].sh_info);
+
+	base = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr;
+	symtab = (Elf64_Sym *)sechdrs[symindex].sh_addr;
+
+	got = sechdrs[me->arch.gotsecindex].sh_addr;
+	gp = got + 0x8000;
+
+	for (i = 0; i < n; i++) {
+		unsigned long r_sym = ELF64_R_SYM (rela[i].r_info);
+		unsigned long r_type = ELF64_R_TYPE (rela[i].r_info);
+		unsigned long r_got_offset = r_type >> 8;
+		unsigned long value, hi, lo;
+		r_type &= 0xff;
+
+		/* This is where to make the change.  */
+		location = base + rela[i].r_offset;
+
+		/* This is the symbol it is referring to.  Note that all
+		   unresolved symbols have been resolved.  */
+		sym = symtab + r_sym;
+		value = sym->st_value + rela[i].r_addend;
+
+		switch (r_type) {
+		case R_ALPHA_NONE:
+			break;
+		case R_ALPHA_REFLONG:
+			*(u32 *)location = value;
+			break;
+		case R_ALPHA_REFQUAD:
+			/* BUG() can produce misaligned relocations. */
+			((u32 *)location)[0] = value;
+			((u32 *)location)[1] = value >> 32;
+			break;
+		case R_ALPHA_GPREL32:
+			value -= gp;
+			if ((int)value != value)
+				goto reloc_overflow;
+			*(u32 *)location = value;
+			break;
+		case R_ALPHA_LITERAL:
+			hi = got + r_got_offset;
+			lo = hi - gp;
+			if ((short)lo != lo)
+				goto reloc_overflow;
+			*(u16 *)location = lo;
+			*(u64 *)hi = value;
+			break;
+		case R_ALPHA_LITUSE:
+			break;
+		case R_ALPHA_GPDISP:
+			value = gp - (u64)location;
+			lo = (short)value;
+			hi = (int)(value - lo);
+			if (hi + lo != value)
+				goto reloc_overflow;
+			*(u16 *)location = hi >> 16;
+			*(u16 *)(location + rela[i].r_addend) = lo;
+			break;
+		case R_ALPHA_BRSGP:
+			/* BRSGP is only allowed to bind to local symbols.
+			   If the section is undef, this means that the
+			   value was resolved from somewhere else.  */
+			if (sym->st_shndx == SHN_UNDEF)
+				goto reloc_overflow;
+			if ((sym->st_other & STO_ALPHA_STD_GPLOAD) ==
+			    STO_ALPHA_STD_GPLOAD)
+				/* Omit the prologue. */
+				value += 8;
+			fallthrough;
+		case R_ALPHA_BRADDR:
+			value -= (u64)location + 4;
+			if (value & 3)
+				goto reloc_overflow;
+			value = (long)value >> 2;
+			if (value + (1<<21) >= 1<<22)
+				goto reloc_overflow;
+			value &= 0x1fffff;
+			value |= *(u32 *)location & ~0x1fffff;
+			*(u32 *)location = value;
+			break;
+		case R_ALPHA_HINT:
+			break;
+		case R_ALPHA_SREL32:
+			value -= (u64)location;
+			if ((int)value != value)
+				goto reloc_overflow;
+			*(u32 *)location = value;
+			break;
+		case R_ALPHA_SREL64:
+			value -= (u64)location;
+			*(u64 *)location = value;
+			break;
+		case R_ALPHA_GPRELHIGH:
+			value = (long)(value - gp + 0x8000) >> 16;
+			if ((short) value != value)
+				goto reloc_overflow;
+			*(u16 *)location = value;
+			break;
+		case R_ALPHA_GPRELLOW:
+			value -= gp;
+			*(u16 *)location = value;
+			break;
+		case R_ALPHA_GPREL16:
+			value -= gp;
+			if ((short) value != value)
+				goto reloc_overflow;
+			*(u16 *)location = value;
+			break;
+		default:
+			printk(KERN_ERR "module %s: Unknown relocation: %lu\n",
+			       me->name, r_type);
+			return -ENOEXEC;
+		reloc_overflow:
+			if (ELF64_ST_TYPE (sym->st_info) == STT_SECTION)
+			  printk(KERN_ERR
+			         "module %s: Relocation (type %lu) overflow vs section %d\n",
+			         me->name, r_type, sym->st_shndx);
+			else
+			  printk(KERN_ERR
+			         "module %s: Relocation (type %lu) overflow vs %s\n",
+			         me->name, r_type, strtab + sym->st_name);
+			return -ENOEXEC;
+		}
+	}
+
+	return 0;
+}
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
new file mode 100644
index 000000000..c54469b36
--- /dev/null
+++ b/arch/alpha/kernel/osf_sys.c
@@ -0,0 +1,1328 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/osf_sys.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+/*
+ * This file handles some of the stranger OSF/1 system call interfaces.
+ * Some of the system calls expect a non-C calling standard, others have
+ * special parameter blocks..
+ */
+
+#include <linux/errno.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/syscalls.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/utsname.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/major.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/shm.h>
+#include <linux/poll.h>
+#include <linux/file.h>
+#include <linux/types.h>
+#include <linux/ipc.h>
+#include <linux/namei.h>
+#include <linux/mount.h>
+#include <linux/uio.h>
+#include <linux/vfs.h>
+#include <linux/rcupdate.h>
+#include <linux/slab.h>
+
+#include <asm/fpu.h>
+#include <asm/io.h>
+#include <linux/uaccess.h>
+#include <asm/sysinfo.h>
+#include <asm/thread_info.h>
+#include <asm/hwrpb.h>
+#include <asm/processor.h>
+
+/*
+ * Brk needs to return an error.  Still support Linux's brk(0) query idiom,
+ * which OSF programs just shouldn't be doing.  We're still not quite
+ * identical to OSF as we don't return 0 on success, but doing otherwise
+ * would require changes to libc.  Hopefully this is good enough.
+ */
+SYSCALL_DEFINE1(osf_brk, unsigned long, brk)
+{
+	unsigned long retval = sys_brk(brk);
+	if (brk && brk != retval)
+		retval = -ENOMEM;
+	return retval;
+}
+ 
+/*
+ * This is pure guess-work..
+ */
+SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
+		unsigned long, text_len, unsigned long, bss_start,
+		unsigned long, bss_len)
+{
+	struct mm_struct *mm;
+
+	mm = current->mm;
+	mm->end_code = bss_start + bss_len;
+	mm->start_brk = bss_start + bss_len;
+	mm->brk = bss_start + bss_len;
+#if 0
+	printk("set_program_attributes(%lx %lx %lx %lx)\n",
+		text_start, text_len, bss_start, bss_len);
+#endif
+	return 0;
+}
+
+/*
+ * OSF/1 directory handling functions...
+ *
+ * The "getdents()" interface is much more sane: the "basep" stuff is
+ * braindamage (it can't really handle filesystems where the directory
+ * offset differences aren't the same as "d_reclen").
+ */
+#define NAME_OFFSET	offsetof (struct osf_dirent, d_name)
+
+struct osf_dirent {
+	unsigned int d_ino;
+	unsigned short d_reclen;
+	unsigned short d_namlen;
+	char d_name[1];
+};
+
+struct osf_dirent_callback {
+	struct dir_context ctx;
+	struct osf_dirent __user *dirent;
+	long __user *basep;
+	unsigned int count;
+	int error;
+};
+
+static bool
+osf_filldir(struct dir_context *ctx, const char *name, int namlen,
+	    loff_t offset, u64 ino, unsigned int d_type)
+{
+	struct osf_dirent __user *dirent;
+	struct osf_dirent_callback *buf =
+		container_of(ctx, struct osf_dirent_callback, ctx);
+	unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32));
+	unsigned int d_ino;
+
+	buf->error = -EINVAL;	/* only used if we fail */
+	if (reclen > buf->count)
+		return false;
+	d_ino = ino;
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->error = -EOVERFLOW;
+		return false;
+	}
+	if (buf->basep) {
+		if (put_user(offset, buf->basep))
+			goto Efault;
+		buf->basep = NULL;
+	}
+	dirent = buf->dirent;
+	if (put_user(d_ino, &dirent->d_ino) ||
+	    put_user(namlen, &dirent->d_namlen) ||
+	    put_user(reclen, &dirent->d_reclen) ||
+	    copy_to_user(dirent->d_name, name, namlen) ||
+	    put_user(0, dirent->d_name + namlen))
+		goto Efault;
+	dirent = (void __user *)dirent + reclen;
+	buf->dirent = dirent;
+	buf->count -= reclen;
+	return true;
+Efault:
+	buf->error = -EFAULT;
+	return false;
+}
+
+SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
+		struct osf_dirent __user *, dirent, unsigned int, count,
+		long __user *, basep)
+{
+	int error;
+	struct fd arg = fdget_pos(fd);
+	struct osf_dirent_callback buf = {
+		.ctx.actor = osf_filldir,
+		.dirent = dirent,
+		.basep = basep,
+		.count = count
+	};
+
+	if (!arg.file)
+		return -EBADF;
+
+	error = iterate_dir(arg.file, &buf.ctx);
+	if (error >= 0)
+		error = buf.error;
+	if (count != buf.count)
+		error = count - buf.count;
+
+	fdput_pos(arg);
+	return error;
+}
+
+#undef NAME_OFFSET
+
+SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
+		unsigned long, prot, unsigned long, flags, unsigned long, fd,
+		unsigned long, off)
+{
+	unsigned long ret = -EINVAL;
+
+#if 0
+	if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
+		printk("%s: unimplemented OSF mmap flags %04lx\n", 
+			current->comm, flags);
+#endif
+	if ((off + PAGE_ALIGN(len)) < off)
+		goto out;
+	if (off & ~PAGE_MASK)
+		goto out;
+	ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
+ out:
+	return ret;
+}
+
+struct osf_stat {
+	int		st_dev;
+	int		st_pad1;
+	unsigned	st_mode;
+	unsigned short	st_nlink;
+	short		st_nlink_reserved;
+	unsigned	st_uid;
+	unsigned	st_gid;
+	int		st_rdev;
+	int		st_ldev;
+	long		st_size;
+	int		st_pad2;
+	int		st_uatime;
+	int		st_pad3;
+	int		st_umtime;
+	int		st_pad4;
+	int		st_uctime;
+	int		st_pad5;
+	int		st_pad6;
+	unsigned	st_flags;
+	unsigned	st_gen;
+	long		st_spare[4];
+	unsigned	st_ino;
+	int		st_ino_reserved;
+	int		st_atime;
+	int		st_atime_reserved;
+	int		st_mtime;
+	int		st_mtime_reserved;
+	int		st_ctime;
+	int		st_ctime_reserved;
+	long		st_blksize;
+	long		st_blocks;
+};
+
+/*
+ * The OSF/1 statfs structure is much larger, but this should
+ * match the beginning, at least.
+ */
+struct osf_statfs {
+	short f_type;
+	short f_flags;
+	int f_fsize;
+	int f_bsize;
+	int f_blocks;
+	int f_bfree;
+	int f_bavail;
+	int f_files;
+	int f_ffree;
+	__kernel_fsid_t f_fsid;
+};
+
+struct osf_statfs64 {
+	short f_type;
+	short f_flags;
+	int f_pad1;
+	int f_pad2;
+	int f_pad3;
+	int f_pad4;
+	int f_pad5;
+	int f_pad6;
+	int f_pad7;
+	__kernel_fsid_t f_fsid;
+	u_short f_namemax;
+	short f_reserved1;
+	int f_spare[8];
+	char f_pad8[90];
+	char f_pad9[90];
+	long mount_info[10];
+	u_long f_flags2;
+	long f_spare2[14];
+	long f_fsize;
+	long f_bsize;
+	long f_blocks;
+	long f_bfree;
+	long f_bavail;
+	long f_files;
+	long f_ffree;
+};
+
+static int
+linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)
+{
+	struct osf_stat tmp = { 0 };
+
+	tmp.st_dev	= lstat->dev;
+	tmp.st_mode	= lstat->mode;
+	tmp.st_nlink	= lstat->nlink;
+	tmp.st_uid	= from_kuid_munged(current_user_ns(), lstat->uid);
+	tmp.st_gid	= from_kgid_munged(current_user_ns(), lstat->gid);
+	tmp.st_rdev	= lstat->rdev;
+	tmp.st_ldev	= lstat->rdev;
+	tmp.st_size	= lstat->size;
+	tmp.st_uatime	= lstat->atime.tv_nsec / 1000;
+	tmp.st_umtime	= lstat->mtime.tv_nsec / 1000;
+	tmp.st_uctime	= lstat->ctime.tv_nsec / 1000;
+	tmp.st_ino	= lstat->ino;
+	tmp.st_atime	= lstat->atime.tv_sec;
+	tmp.st_mtime	= lstat->mtime.tv_sec;
+	tmp.st_ctime	= lstat->ctime.tv_sec;
+	tmp.st_blksize	= lstat->blksize;
+	tmp.st_blocks	= lstat->blocks;
+
+	return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0;
+}
+
+static int
+linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
+		    unsigned long bufsiz)
+{
+	struct osf_statfs tmp_stat;
+
+	tmp_stat.f_type = linux_stat->f_type;
+	tmp_stat.f_flags = 0;	/* mount flags */
+	tmp_stat.f_fsize = linux_stat->f_frsize;
+	tmp_stat.f_bsize = linux_stat->f_bsize;
+	tmp_stat.f_blocks = linux_stat->f_blocks;
+	tmp_stat.f_bfree = linux_stat->f_bfree;
+	tmp_stat.f_bavail = linux_stat->f_bavail;
+	tmp_stat.f_files = linux_stat->f_files;
+	tmp_stat.f_ffree = linux_stat->f_ffree;
+	tmp_stat.f_fsid = linux_stat->f_fsid;
+	if (bufsiz > sizeof(tmp_stat))
+		bufsiz = sizeof(tmp_stat);
+	return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
+}
+
+static int
+linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat,
+		      unsigned long bufsiz)
+{
+	struct osf_statfs64 tmp_stat = { 0 };
+
+	tmp_stat.f_type = linux_stat->f_type;
+	tmp_stat.f_fsize = linux_stat->f_frsize;
+	tmp_stat.f_bsize = linux_stat->f_bsize;
+	tmp_stat.f_blocks = linux_stat->f_blocks;
+	tmp_stat.f_bfree = linux_stat->f_bfree;
+	tmp_stat.f_bavail = linux_stat->f_bavail;
+	tmp_stat.f_files = linux_stat->f_files;
+	tmp_stat.f_ffree = linux_stat->f_ffree;
+	tmp_stat.f_fsid = linux_stat->f_fsid;
+	if (bufsiz > sizeof(tmp_stat))
+		bufsiz = sizeof(tmp_stat);
+	return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
+}
+
+SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
+		struct osf_statfs __user *, buffer, unsigned long, bufsiz)
+{
+	struct kstatfs linux_stat;
+	int error = user_statfs(pathname, &linux_stat);
+	if (!error)
+		error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
+	return error;	
+}
+
+SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf)
+{
+	struct kstat stat;
+	int error;
+
+	error = vfs_stat(name, &stat);
+	if (error)
+		return error;
+
+	return linux_to_osf_stat(&stat, buf);
+}
+
+SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf)
+{
+	struct kstat stat;
+	int error;
+
+	error = vfs_lstat(name, &stat);
+	if (error)
+		return error;
+
+	return linux_to_osf_stat(&stat, buf);
+}
+
+SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf)
+{
+	struct kstat stat;
+	int error;
+
+	error = vfs_fstat(fd, &stat);
+	if (error)
+		return error;
+
+	return linux_to_osf_stat(&stat, buf);
+}
+
+SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
+		struct osf_statfs __user *, buffer, unsigned long, bufsiz)
+{
+	struct kstatfs linux_stat;
+	int error = fd_statfs(fd, &linux_stat);
+	if (!error)
+		error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
+	return error;
+}
+
+SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname,
+		struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
+{
+	struct kstatfs linux_stat;
+	int error = user_statfs(pathname, &linux_stat);
+	if (!error)
+		error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
+	return error;
+}
+
+SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd,
+		struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
+{
+	struct kstatfs linux_stat;
+	int error = fd_statfs(fd, &linux_stat);
+	if (!error)
+		error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
+	return error;
+}
+
+/*
+ * Uhh.. OSF/1 mount parameters aren't exactly obvious..
+ *
+ * Although to be frank, neither are the native Linux/i386 ones..
+ */
+struct ufs_args {
+	char __user *devname;
+	int flags;
+	uid_t exroot;
+};
+
+struct cdfs_args {
+	char __user *devname;
+	int flags;
+	uid_t exroot;
+
+	/* This has lots more here, which Linux handles with the option block
+	   but I'm too lazy to do the translation into ASCII.  */
+};
+
+struct procfs_args {
+	char __user *devname;
+	int flags;
+	uid_t exroot;
+};
+
+/*
+ * We can't actually handle ufs yet, so we translate UFS mounts to
+ * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
+ * layout is so braindead it's a major headache doing it.
+ *
+ * Just how long ago was it written? OTOH our UFS driver may be still
+ * unhappy with OSF UFS. [CHECKME]
+ */
+static int
+osf_ufs_mount(const char __user *dirname,
+	      struct ufs_args __user *args, int flags)
+{
+	int retval;
+	struct cdfs_args tmp;
+	struct filename *devname;
+
+	retval = -EFAULT;
+	if (copy_from_user(&tmp, args, sizeof(tmp)))
+		goto out;
+	devname = getname(tmp.devname);
+	retval = PTR_ERR(devname);
+	if (IS_ERR(devname))
+		goto out;
+	retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
+	putname(devname);
+ out:
+	return retval;
+}
+
+static int
+osf_cdfs_mount(const char __user *dirname,
+	       struct cdfs_args __user *args, int flags)
+{
+	int retval;
+	struct cdfs_args tmp;
+	struct filename *devname;
+
+	retval = -EFAULT;
+	if (copy_from_user(&tmp, args, sizeof(tmp)))
+		goto out;
+	devname = getname(tmp.devname);
+	retval = PTR_ERR(devname);
+	if (IS_ERR(devname))
+		goto out;
+	retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
+	putname(devname);
+ out:
+	return retval;
+}
+
+static int
+osf_procfs_mount(const char __user *dirname,
+		 struct procfs_args __user *args, int flags)
+{
+	struct procfs_args tmp;
+
+	if (copy_from_user(&tmp, args, sizeof(tmp)))
+		return -EFAULT;
+
+	return do_mount("", dirname, "proc", flags, NULL);
+}
+
+SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
+		int, flag, void __user *, data)
+{
+	int retval;
+
+	switch (typenr) {
+	case 1:
+		retval = osf_ufs_mount(path, data, flag);
+		break;
+	case 6:
+		retval = osf_cdfs_mount(path, data, flag);
+		break;
+	case 9:
+		retval = osf_procfs_mount(path, data, flag);
+		break;
+	default:
+		retval = -EINVAL;
+		printk("osf_mount(%ld, %x)\n", typenr, flag);
+	}
+
+	return retval;
+}
+
+SYSCALL_DEFINE1(osf_utsname, char __user *, name)
+{
+	char tmp[5 * 32];
+
+	down_read(&uts_sem);
+	memcpy(tmp + 0 * 32, utsname()->sysname, 32);
+	memcpy(tmp + 1 * 32, utsname()->nodename, 32);
+	memcpy(tmp + 2 * 32, utsname()->release, 32);
+	memcpy(tmp + 3 * 32, utsname()->version, 32);
+	memcpy(tmp + 4 * 32, utsname()->machine, 32);
+	up_read(&uts_sem);
+
+	if (copy_to_user(name, tmp, sizeof(tmp)))
+		return -EFAULT;
+	return 0;
+}
+
+SYSCALL_DEFINE0(getpagesize)
+{
+	return PAGE_SIZE;
+}
+
+SYSCALL_DEFINE0(getdtablesize)
+{
+	return sysctl_nr_open;
+}
+
+/*
+ * For compatibility with OSF/1 only.  Use utsname(2) instead.
+ */
+SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
+{
+	int len;
+	char *kname;
+	char tmp[32];
+
+	if (namelen < 0 || namelen > 32)
+		namelen = 32;
+
+	down_read(&uts_sem);
+	kname = utsname()->domainname;
+	len = strnlen(kname, namelen);
+	len = min(len + 1, namelen);
+	memcpy(tmp, kname, len);
+	up_read(&uts_sem);
+
+	if (copy_to_user(name, tmp, len))
+		return -EFAULT;
+	return 0;
+}
+
+/*
+ * The following stuff should move into a header file should it ever
+ * be labeled "officially supported."  Right now, there is just enough
+ * support to avoid applications (such as tar) printing error
+ * messages.  The attributes are not really implemented.
+ */
+
+/*
+ * Values for Property list entry flag
+ */
+#define PLE_PROPAGATE_ON_COPY		0x1	/* cp(1) will copy entry
+						   by default */
+#define PLE_FLAG_MASK			0x1	/* Valid flag values */
+#define PLE_FLAG_ALL			-1	/* All flag value */
+
+struct proplistname_args {
+	unsigned int pl_mask;
+	unsigned int pl_numnames;
+	char **pl_names;
+};
+
+union pl_args {
+	struct setargs {
+		char __user *path;
+		long follow;
+		long nbytes;
+		char __user *buf;
+	} set;
+	struct fsetargs {
+		long fd;
+		long nbytes;
+		char __user *buf;
+	} fset;
+	struct getargs {
+		char __user *path;
+		long follow;
+		struct proplistname_args __user *name_args;
+		long nbytes;
+		char __user *buf;
+		int __user *min_buf_size;
+	} get;
+	struct fgetargs {
+		long fd;
+		struct proplistname_args __user *name_args;
+		long nbytes;
+		char __user *buf;
+		int __user *min_buf_size;
+	} fget;
+	struct delargs {
+		char __user *path;
+		long follow;
+		struct proplistname_args __user *name_args;
+	} del;
+	struct fdelargs {
+		long fd;
+		struct proplistname_args __user *name_args;
+	} fdel;
+};
+
+enum pl_code {
+	PL_SET = 1, PL_FSET = 2,
+	PL_GET = 3, PL_FGET = 4,
+	PL_DEL = 5, PL_FDEL = 6
+};
+
+SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
+		union pl_args __user *, args)
+{
+	long error;
+	int __user *min_buf_size_ptr;
+
+	switch (code) {
+	case PL_SET:
+		if (get_user(error, &args->set.nbytes))
+			error = -EFAULT;
+		break;
+	case PL_FSET:
+		if (get_user(error, &args->fset.nbytes))
+			error = -EFAULT;
+		break;
+	case PL_GET:
+		error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
+		if (error)
+			break;
+		error = put_user(0, min_buf_size_ptr);
+		break;
+	case PL_FGET:
+		error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
+		if (error)
+			break;
+		error = put_user(0, min_buf_size_ptr);
+		break;
+	case PL_DEL:
+	case PL_FDEL:
+		error = 0;
+		break;
+	default:
+		error = -EOPNOTSUPP;
+		break;
+	}
+	return error;
+}
+
+SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
+		struct sigstack __user *, uoss)
+{
+	unsigned long usp = rdusp();
+	unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
+	unsigned long oss_os = on_sig_stack(usp);
+	int error;
+
+	if (uss) {
+		void __user *ss_sp;
+
+		error = -EFAULT;
+		if (get_user(ss_sp, &uss->ss_sp))
+			goto out;
+
+		/* If the current stack was set with sigaltstack, don't
+		   swap stacks while we are on it.  */
+		error = -EPERM;
+		if (current->sas_ss_sp && on_sig_stack(usp))
+			goto out;
+
+		/* Since we don't know the extent of the stack, and we don't
+		   track onstack-ness, but rather calculate it, we must 
+		   presume a size.  Ho hum this interface is lossy.  */
+		current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
+		current->sas_ss_size = SIGSTKSZ;
+	}
+
+	if (uoss) {
+		error = -EFAULT;
+		if (put_user(oss_sp, &uoss->ss_sp) ||
+		    put_user(oss_os, &uoss->ss_onstack))
+			goto out;
+	}
+
+	error = 0;
+ out:
+	return error;
+}
+
+SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
+{
+	const char *sysinfo_table[] = {
+		utsname()->sysname,
+		utsname()->nodename,
+		utsname()->release,
+		utsname()->version,
+		utsname()->machine,
+		"alpha",	/* instruction set architecture */
+		"dummy",	/* hardware serial number */
+		"dummy",	/* hardware manufacturer */
+		"dummy",	/* secure RPC domain */
+	};
+	unsigned long offset;
+	const char *res;
+	long len;
+	char tmp[__NEW_UTS_LEN + 1];
+
+	offset = command-1;
+	if (offset >= ARRAY_SIZE(sysinfo_table)) {
+		/* Digital UNIX has a few unpublished interfaces here */
+		printk("sysinfo(%d)", command);
+		return -EINVAL;
+	}
+
+	down_read(&uts_sem);
+	res = sysinfo_table[offset];
+	len = strlen(res)+1;
+	if ((unsigned long)len > (unsigned long)count)
+		len = count;
+	memcpy(tmp, res, len);
+	up_read(&uts_sem);
+	if (copy_to_user(buf, tmp, len))
+		return -EFAULT;
+	return 0;
+}
+
+SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
+		unsigned long, nbytes, int __user *, start, void __user *, arg)
+{
+	unsigned long w;
+	struct percpu_struct *cpu;
+
+	switch (op) {
+	case GSI_IEEE_FP_CONTROL:
+		/* Return current software fp control & status bits.  */
+		/* Note that DU doesn't verify available space here.  */
+
+ 		w = current_thread_info()->ieee_state & IEEE_SW_MASK;
+ 		w = swcr_update_status(w, rdfpcr());
+		if (put_user(w, (unsigned long __user *) buffer))
+			return -EFAULT;
+		return 0;
+
+	case GSI_IEEE_STATE_AT_SIGNAL:
+		/*
+		 * Not sure anybody will ever use this weird stuff.  These
+		 * ops can be used (under OSF/1) to set the fpcr that should
+		 * be used when a signal handler starts executing.
+		 */
+		break;
+
+ 	case GSI_UACPROC:
+		if (nbytes < sizeof(unsigned int))
+			return -EINVAL;
+		w = current_thread_info()->status & UAC_BITMASK;
+		if (put_user(w, (unsigned int __user *)buffer))
+			return -EFAULT;
+ 		return 1;
+
+	case GSI_PROC_TYPE:
+		if (nbytes < sizeof(unsigned long))
+			return -EINVAL;
+		cpu = (struct percpu_struct*)
+		  ((char*)hwrpb + hwrpb->processor_offset);
+		w = cpu->type;
+		if (put_user(w, (unsigned long  __user*)buffer))
+			return -EFAULT;
+		return 1;
+
+	case GSI_GET_HWRPB:
+		if (nbytes > sizeof(*hwrpb))
+			return -EINVAL;
+		if (copy_to_user(buffer, hwrpb, nbytes) != 0)
+			return -EFAULT;
+		return 1;
+
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
+		unsigned long, nbytes, int __user *, start, void __user *, arg)
+{
+	switch (op) {
+	case SSI_IEEE_FP_CONTROL: {
+		unsigned long swcr, fpcr;
+		unsigned int *state;
+
+		/* 
+		 * Alpha Architecture Handbook 4.7.7.3:
+		 * To be fully IEEE compiant, we must track the current IEEE
+		 * exception state in software, because spurious bits can be
+		 * set in the trap shadow of a software-complete insn.
+		 */
+
+		if (get_user(swcr, (unsigned long __user *)buffer))
+			return -EFAULT;
+		state = &current_thread_info()->ieee_state;
+
+		/* Update software trap enable bits.  */
+		*state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
+
+		/* Update the real fpcr.  */
+		fpcr = rdfpcr() & FPCR_DYN_MASK;
+		fpcr |= ieee_swcr_to_fpcr(swcr);
+		wrfpcr(fpcr);
+
+		return 0;
+	}
+
+	case SSI_IEEE_RAISE_EXCEPTION: {
+		unsigned long exc, swcr, fpcr, fex;
+		unsigned int *state;
+
+		if (get_user(exc, (unsigned long __user *)buffer))
+			return -EFAULT;
+		state = &current_thread_info()->ieee_state;
+		exc &= IEEE_STATUS_MASK;
+
+		/* Update software trap enable bits.  */
+ 		swcr = (*state & IEEE_SW_MASK) | exc;
+		*state |= exc;
+
+		/* Update the real fpcr.  */
+		fpcr = rdfpcr();
+		fpcr |= ieee_swcr_to_fpcr(swcr);
+		wrfpcr(fpcr);
+
+ 		/* If any exceptions set by this call, and are unmasked,
+		   send a signal.  Old exceptions are not signaled.  */
+		fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
+ 		if (fex) {
+			int si_code = FPE_FLTUNK;
+
+			if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
+			if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
+			if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
+			if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
+			if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
+			if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
+
+			send_sig_fault_trapno(SIGFPE, si_code,
+				       (void __user *)NULL,  /* FIXME */
+				       0, current);
+ 		}
+		return 0;
+	}
+
+	case SSI_IEEE_STATE_AT_SIGNAL:
+	case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
+		/*
+		 * Not sure anybody will ever use this weird stuff.  These
+		 * ops can be used (under OSF/1) to set the fpcr that should
+		 * be used when a signal handler starts executing.
+		 */
+		break;
+
+ 	case SSI_NVPAIRS: {
+		unsigned __user *p = buffer;
+		unsigned i;
+		
+		for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
+			unsigned v, w, status;
+
+			if (get_user(v, p) || get_user(w, p + 1))
+ 				return -EFAULT;
+ 			switch (v) {
+ 			case SSIN_UACPROC:
+				w &= UAC_BITMASK;
+				status = current_thread_info()->status;
+				status = (status & ~UAC_BITMASK) | w;
+				current_thread_info()->status = status;
+ 				break;
+ 
+ 			default:
+ 				return -EOPNOTSUPP;
+ 			}
+ 		}
+ 		return 0;
+	}
+ 
+	case SSI_LMF:
+		return 0;
+
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+/* Translations due to the fact that OSF's time_t is an int.  Which
+   affects all sorts of things, like timeval and itimerval.  */
+
+extern struct timezone sys_tz;
+
+struct timeval32
+{
+    int tv_sec, tv_usec;
+};
+
+struct itimerval32
+{
+    struct timeval32 it_interval;
+    struct timeval32 it_value;
+};
+
+static inline long
+get_tv32(struct timespec64 *o, struct timeval32 __user *i)
+{
+	struct timeval32 tv;
+	if (copy_from_user(&tv, i, sizeof(struct timeval32)))
+		return -EFAULT;
+	o->tv_sec = tv.tv_sec;
+	o->tv_nsec = tv.tv_usec * NSEC_PER_USEC;
+	return 0;
+}
+
+static inline long
+put_tv32(struct timeval32 __user *o, struct timespec64 *i)
+{
+	return copy_to_user(o, &(struct timeval32){
+				.tv_sec = i->tv_sec,
+				.tv_usec = i->tv_nsec / NSEC_PER_USEC},
+			    sizeof(struct timeval32));
+}
+
+static inline long
+put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i)
+{
+	return copy_to_user(o, &(struct timeval32){
+				.tv_sec = i->tv_sec,
+				.tv_usec = i->tv_usec},
+			    sizeof(struct timeval32));
+}
+
+static inline void
+jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
+{
+	value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
+	value->tv_sec = jiffies / HZ;
+}
+
+SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv,
+		struct timezone __user *, tz)
+{
+	if (tv) {
+		struct timespec64 kts;
+
+		ktime_get_real_ts64(&kts);
+		if (put_tv32(tv, &kts))
+			return -EFAULT;
+	}
+	if (tz) {
+		if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
+		struct timezone __user *, tz)
+{
+	struct timespec64 kts;
+	struct timezone ktz;
+
+ 	if (tv) {
+		if (get_tv32(&kts, tv))
+			return -EFAULT;
+	}
+	if (tz) {
+		if (copy_from_user(&ktz, tz, sizeof(*tz)))
+			return -EFAULT;
+	}
+
+	return do_sys_settimeofday64(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
+asmlinkage long sys_ni_posix_timers(void);
+
+SYSCALL_DEFINE2(osf_utimes, const char __user *, filename,
+		struct timeval32 __user *, tvs)
+{
+	struct timespec64 tv[2];
+
+	if (tvs) {
+		if (get_tv32(&tv[0], &tvs[0]) ||
+		    get_tv32(&tv[1], &tvs[1]))
+			return -EFAULT;
+
+		if (tv[0].tv_nsec < 0 || tv[0].tv_nsec >= 1000000000 ||
+		    tv[1].tv_nsec < 0 || tv[1].tv_nsec >= 1000000000)
+			return -EINVAL;
+	}
+
+	return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0);
+}
+
+SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp,
+		fd_set __user *, exp, struct timeval32 __user *, tvp)
+{
+	struct timespec64 end_time, *to = NULL;
+	if (tvp) {
+		struct timespec64 tv;
+		to = &end_time;
+
+		if (get_tv32(&tv, tvp))
+		    	return -EFAULT;
+
+		if (tv.tv_sec < 0 || tv.tv_nsec < 0)
+			return -EINVAL;
+
+		if (poll_select_set_timeout(to, tv.tv_sec, tv.tv_nsec))
+			return -EINVAL;		
+
+	}
+
+	/* OSF does not copy back the remaining time.  */
+	return core_sys_select(n, inp, outp, exp, to);
+}
+
+struct rusage32 {
+	struct timeval32 ru_utime;	/* user time used */
+	struct timeval32 ru_stime;	/* system time used */
+	long	ru_maxrss;		/* maximum resident set size */
+	long	ru_ixrss;		/* integral shared memory size */
+	long	ru_idrss;		/* integral unshared data size */
+	long	ru_isrss;		/* integral unshared stack size */
+	long	ru_minflt;		/* page reclaims */
+	long	ru_majflt;		/* page faults */
+	long	ru_nswap;		/* swaps */
+	long	ru_inblock;		/* block input operations */
+	long	ru_oublock;		/* block output operations */
+	long	ru_msgsnd;		/* messages sent */
+	long	ru_msgrcv;		/* messages received */
+	long	ru_nsignals;		/* signals received */
+	long	ru_nvcsw;		/* voluntary context switches */
+	long	ru_nivcsw;		/* involuntary " */
+};
+
+SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
+{
+	struct rusage32 r;
+	u64 utime, stime;
+	unsigned long utime_jiffies, stime_jiffies;
+
+	if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
+		return -EINVAL;
+
+	memset(&r, 0, sizeof(r));
+	switch (who) {
+	case RUSAGE_SELF:
+		task_cputime(current, &utime, &stime);
+		utime_jiffies = nsecs_to_jiffies(utime);
+		stime_jiffies = nsecs_to_jiffies(stime);
+		jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
+		jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
+		r.ru_minflt = current->min_flt;
+		r.ru_majflt = current->maj_flt;
+		break;
+	case RUSAGE_CHILDREN:
+		utime_jiffies = nsecs_to_jiffies(current->signal->cutime);
+		stime_jiffies = nsecs_to_jiffies(current->signal->cstime);
+		jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
+		jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
+		r.ru_minflt = current->signal->cmin_flt;
+		r.ru_majflt = current->signal->cmaj_flt;
+		break;
+	}
+
+	return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
+}
+
+SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
+		struct rusage32 __user *, ur)
+{
+	struct rusage r;
+	long err = kernel_wait4(pid, ustatus, options, &r);
+	if (err <= 0)
+		return err;
+	if (!ur)
+		return err;
+	if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime))
+		return -EFAULT;
+	if (put_tv_to_tv32(&ur->ru_stime, &r.ru_stime))
+		return -EFAULT;
+	if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss,
+	      sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss)))
+		return -EFAULT;
+	return err;
+}
+
+/*
+ * I don't know what the parameters are: the first one
+ * seems to be a timeval pointer, and I suspect the second
+ * one is the time remaining.. Ho humm.. No documentation.
+ */
+SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep,
+		struct timeval32 __user *, remain)
+{
+	struct timespec64 tmp;
+	unsigned long ticks;
+
+	if (get_tv32(&tmp, sleep))
+		goto fault;
+
+	ticks = timespec64_to_jiffies(&tmp);
+
+	ticks = schedule_timeout_interruptible(ticks);
+
+	if (remain) {
+		jiffies_to_timespec64(ticks, &tmp);
+		if (put_tv32(remain, &tmp))
+			goto fault;
+	}
+	
+	return 0;
+ fault:
+	return -EFAULT;
+}
+
+
+struct timex32 {
+	unsigned int modes;	/* mode selector */
+	long offset;		/* time offset (usec) */
+	long freq;		/* frequency offset (scaled ppm) */
+	long maxerror;		/* maximum error (usec) */
+	long esterror;		/* estimated error (usec) */
+	int status;		/* clock command/status */
+	long constant;		/* pll time constant */
+	long precision;		/* clock precision (usec) (read only) */
+	long tolerance;		/* clock frequency tolerance (ppm)
+				 * (read only)
+				 */
+	struct timeval32 time;	/* (read only) */
+	long tick;		/* (modified) usecs between clock ticks */
+
+	long ppsfreq;           /* pps frequency (scaled ppm) (ro) */
+	long jitter;            /* pps jitter (us) (ro) */
+	int shift;              /* interval duration (s) (shift) (ro) */
+	long stabil;            /* pps stability (scaled ppm) (ro) */
+	long jitcnt;            /* jitter limit exceeded (ro) */
+	long calcnt;            /* calibration intervals (ro) */
+	long errcnt;            /* calibration errors (ro) */
+	long stbcnt;            /* stability limit exceeded (ro) */
+
+	int  :32; int  :32; int  :32; int  :32;
+	int  :32; int  :32; int  :32; int  :32;
+	int  :32; int  :32; int  :32; int  :32;
+};
+
+SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
+{
+	struct __kernel_timex txc;
+	int ret;
+
+	/* copy relevant bits of struct timex. */
+	if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
+	    copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 
+			   offsetof(struct timex32, tick)))
+	  return -EFAULT;
+
+	ret = do_adjtimex(&txc);	
+	if (ret < 0)
+	  return ret;
+	
+	/* copy back to timex32 */
+	if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
+	    (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - 
+			  offsetof(struct timex32, tick))) ||
+	    (put_user(txc.time.tv_sec, &txc_p->time.tv_sec)) ||
+	    (put_user(txc.time.tv_usec, &txc_p->time.tv_usec)))
+	  return -EFAULT;
+
+	return ret;
+}
+
+/* Get an address range which is currently unmapped.  Similar to the
+   generic version except that we know how to honor ADDR_LIMIT_32BIT.  */
+
+static unsigned long
+arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
+		         unsigned long limit)
+{
+	struct vm_unmapped_area_info info;
+
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = limit;
+	info.align_mask = 0;
+	info.align_offset = 0;
+	return vm_unmapped_area(&info);
+}
+
+unsigned long
+arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		       unsigned long len, unsigned long pgoff,
+		       unsigned long flags)
+{
+	unsigned long limit;
+
+	/* "32 bit" actually means 31 bit, since pointers sign extend.  */
+	if (current->personality & ADDR_LIMIT_32BIT)
+		limit = 0x80000000;
+	else
+		limit = TASK_SIZE;
+
+	if (len > limit)
+		return -ENOMEM;
+
+	if (flags & MAP_FIXED)
+		return addr;
+
+	/* First, see if the given suggestion fits.
+
+	   The OSF/1 loader (/sbin/loader) relies on us returning an
+	   address larger than the requested if one exists, which is
+	   a terribly broken way to program.
+
+	   That said, I can see the use in being able to suggest not
+	   merely specific addresses, but regions of memory -- perhaps
+	   this feature should be incorporated into all ports?  */
+
+	if (addr) {
+		addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
+		if (addr != (unsigned long) -ENOMEM)
+			return addr;
+	}
+
+	/* Next, try allocating at TASK_UNMAPPED_BASE.  */
+	addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
+					 len, limit);
+	if (addr != (unsigned long) -ENOMEM)
+		return addr;
+
+	/* Finally, try allocating in low memory.  */
+	addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
+
+	return addr;
+}
+
+SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
+{
+	int prio = sys_getpriority(which, who);
+	if (prio >= 0) {
+		/* Return value is the unbiased priority, i.e. 20 - prio.
+		   This does result in negative return values, so signal
+		   no error */
+		force_successful_syscall_return();
+		prio = 20 - prio;
+	}
+	return prio;
+}
+
+SYSCALL_DEFINE0(getxuid)
+{
+	current_pt_regs()->r20 = sys_geteuid();
+	return sys_getuid();
+}
+
+SYSCALL_DEFINE0(getxgid)
+{
+	current_pt_regs()->r20 = sys_getegid();
+	return sys_getgid();
+}
+
+SYSCALL_DEFINE0(getxpid)
+{
+	current_pt_regs()->r20 = sys_getppid();
+	return sys_getpid();
+}
+
+SYSCALL_DEFINE0(alpha_pipe)
+{
+	int fd[2];
+	int res = do_pipe_flags(fd, 0);
+	if (!res) {
+		/* The return values are in $0 and $20.  */
+		current_pt_regs()->r20 = fd[1];
+		res = fd[0];
+	}
+	return res;
+}
+
+SYSCALL_DEFINE1(sethae, unsigned long, val)
+{
+	current_pt_regs()->hae = val;
+	return 0;
+}
diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c
new file mode 100644
index 000000000..82b19c9e5
--- /dev/null
+++ b/arch/alpha/kernel/pc873xx.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#include "pc873xx.h"
+
+static unsigned pc873xx_probelist[] = {0x398, 0x26e, 0};
+
+static char *pc873xx_names[] = {
+	"PC87303", "PC87306", "PC87312", "PC87332", "PC87334"
+};
+
+static unsigned int base, model;
+
+
+unsigned int __init pc873xx_get_base(void)
+{
+	return base;
+}
+
+char *__init pc873xx_get_model(void)
+{
+	return pc873xx_names[model];
+}
+
+static unsigned char __init pc873xx_read(unsigned int base, int reg)
+{
+	outb(reg, base);
+	return inb(base + 1);
+}
+
+static void __init pc873xx_write(unsigned int base, int reg, unsigned char data)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	outb(reg, base);
+	outb(data, base + 1);
+	outb(data, base + 1);		/* Must be written twice */
+	local_irq_restore(flags);
+}
+
+int __init pc873xx_probe(void)
+{
+	int val, index = 0;
+
+	while ((base = pc873xx_probelist[index++])) {
+
+		if (request_region(base, 2, "Super IO PC873xx") == NULL)
+			continue;
+
+		val = pc873xx_read(base, REG_SID);
+		if ((val & 0xf0) == 0x10) {
+			model = PC87332;
+			break;
+		} else if ((val & 0xf8) == 0x70) {
+			model = PC87306;
+			break;
+		} else if ((val & 0xf8) == 0x50) {
+			model = PC87334;
+			break;
+		} else if ((val & 0xf8) == 0x40) {
+			model = PC87303;
+			break;
+		}
+
+		release_region(base, 2);
+	}
+
+	return (base == 0) ? -1 : 1;
+}
+
+void __init pc873xx_enable_epp19(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling EPP v1.9\n");
+	data = pc873xx_read(base, REG_PCR);
+	pc873xx_write(base, REG_PCR, (data & 0xFC) | 0x02);
+}
+
+void __init pc873xx_enable_ide(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling IDE interrupt\n");
+	data = pc873xx_read(base, REG_FER);
+	pc873xx_write(base, REG_FER, data | 0x40);
+}
diff --git a/arch/alpha/kernel/pc873xx.h b/arch/alpha/kernel/pc873xx.h
new file mode 100644
index 000000000..043533027
--- /dev/null
+++ b/arch/alpha/kernel/pc873xx.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _PC873xx_H_
+#define _PC873xx_H_
+
+/*
+ * Control Register Values
+ */
+#define REG_FER	0x00
+#define REG_FAR	0x01
+#define REG_PTR	0x02
+#define REG_FCR	0x03
+#define REG_PCR	0x04
+#define REG_KRR	0x05
+#define REG_PMC	0x06
+#define REG_TUP	0x07
+#define REG_SID	0x08
+#define REG_ASC	0x09
+#define REG_IRC	0x0e
+
+/*
+ * Model numbers
+ */
+#define PC87303	0
+#define PC87306	1
+#define PC87312	2
+#define PC87332	3
+#define PC87334	4
+
+int pc873xx_probe(void);
+unsigned int pc873xx_get_base(void);
+char *pc873xx_get_model(void);
+void pc873xx_enable_epp19(void);
+void pc873xx_enable_ide(void);
+
+#endif
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
new file mode 100644
index 000000000..ae82061ed
--- /dev/null
+++ b/arch/alpha/kernel/pci-noop.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/pci-noop.c
+ *
+ * Stub PCI interfaces for Jensen-specific kernels.
+ */
+
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/memblock.h>
+#include <linux/gfp.h>
+#include <linux/capability.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <linux/syscalls.h>
+
+#include "proto.h"
+
+
+/*
+ * The PCI controller list.
+ */
+
+struct pci_controller *hose_head, **hose_tail = &hose_head;
+struct pci_controller *pci_isa_hose;
+
+
+struct pci_controller * __init
+alloc_pci_controller(void)
+{
+	struct pci_controller *hose;
+
+	hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
+	if (!hose)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(*hose));
+
+	*hose_tail = hose;
+	hose_tail = &hose->next;
+
+	return hose;
+}
+
+struct resource * __init
+alloc_resource(void)
+{
+	void *ptr = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+
+	if (!ptr)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(struct resource));
+
+	return ptr;
+}
+
+SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
+		unsigned long, dfn)
+{
+	struct pci_controller *hose;
+
+	/* from hose or from bus.devfn */
+	if (which & IOBASE_FROM_HOSE) {
+		for (hose = hose_head; hose; hose = hose->next)
+			if (hose->index == bus)
+				break;
+		if (!hose)
+			return -ENODEV;
+	} else {
+		/* Special hook for ISA access.  */
+		if (bus == 0 && dfn == 0)
+			hose = pci_isa_hose;
+		else
+			return -ENODEV;
+	}
+
+	switch (which & ~IOBASE_FROM_HOSE) {
+	case IOBASE_HOSE:
+		return hose->index;
+	case IOBASE_SPARSE_MEM:
+		return hose->sparse_mem_base;
+	case IOBASE_DENSE_MEM:
+		return hose->dense_mem_base;
+	case IOBASE_SPARSE_IO:
+		return hose->sparse_io_base;
+	case IOBASE_DENSE_IO:
+		return hose->dense_io_base;
+	case IOBASE_ROOT_BUS:
+		return hose->bus->number;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
+		unsigned long, off, unsigned long, len, void __user *, buf)
+{
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	else
+		return -ENODEV;
+}
+
+SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
+		unsigned long, off, unsigned long, len, void __user *, buf)
+{
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	else
+		return -ENODEV;
+}
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
new file mode 100644
index 000000000..5808a66e2
--- /dev/null
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -0,0 +1,372 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/kernel/pci-sysfs.c
+ *
+ * Copyright (C) 2009 Ivan Kokshaysky
+ *
+ * Alpha PCI resource files.
+ *
+ * Loosely based on generic HAVE_PCI_MMAP implementation in
+ * drivers/pci/pci-sysfs.c
+ */
+
+#include <linux/sched.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+
+static int hose_mmap_page_range(struct pci_controller *hose,
+				struct vm_area_struct *vma,
+				enum pci_mmap_state mmap_type, int sparse)
+{
+	unsigned long base;
+
+	if (mmap_type == pci_mmap_mem)
+		base = sparse ? hose->sparse_mem_base : hose->dense_mem_base;
+	else
+		base = sparse ? hose->sparse_io_base : hose->dense_io_base;
+
+	vma->vm_pgoff += base >> PAGE_SHIFT;
+
+	return io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+				  vma->vm_end - vma->vm_start,
+				  vma->vm_page_prot);
+}
+
+static int __pci_mmap_fits(struct pci_dev *pdev, int num,
+			   struct vm_area_struct *vma, int sparse)
+{
+	unsigned long nr, start, size;
+	int shift = sparse ? 5 : 0;
+
+	nr = vma_pages(vma);
+	start = vma->vm_pgoff;
+	size = ((pci_resource_len(pdev, num) - 1) >> (PAGE_SHIFT - shift)) + 1;
+
+	if (start < size && size - start >= nr)
+		return 1;
+	WARN(1, "process \"%s\" tried to map%s 0x%08lx-0x%08lx on %s BAR %d "
+		"(size 0x%08lx)\n",
+		current->comm, sparse ? " sparse" : "", start, start + nr,
+		pci_name(pdev), num, size);
+	return 0;
+}
+
+/**
+ * pci_mmap_resource - map a PCI resource into user memory space
+ * @kobj: kobject for mapping
+ * @attr: struct bin_attribute for the file being mapped
+ * @vma: struct vm_area_struct passed into the mmap
+ * @sparse: address space type
+ *
+ * Use the bus mapping routines to map a PCI resource into userspace.
+ *
+ * Return: %0 on success, negative error code otherwise
+ */
+static int pci_mmap_resource(struct kobject *kobj,
+			     struct bin_attribute *attr,
+			     struct vm_area_struct *vma, int sparse)
+{
+	struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));
+	struct resource *res = attr->private;
+	enum pci_mmap_state mmap_type;
+	struct pci_bus_region bar;
+	int i;
+
+	for (i = 0; i < PCI_STD_NUM_BARS; i++)
+		if (res == &pdev->resource[i])
+			break;
+	if (i >= PCI_STD_NUM_BARS)
+		return -ENODEV;
+
+	if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(res->start))
+		return -EINVAL;
+
+	if (!__pci_mmap_fits(pdev, i, vma, sparse))
+		return -EINVAL;
+
+	pcibios_resource_to_bus(pdev->bus, &bar, res);
+	vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0));
+	mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
+
+	return hose_mmap_page_range(pdev->sysdata, vma, mmap_type, sparse);
+}
+
+static int pci_mmap_resource_sparse(struct file *filp, struct kobject *kobj,
+				    struct bin_attribute *attr,
+				    struct vm_area_struct *vma)
+{
+	return pci_mmap_resource(kobj, attr, vma, 1);
+}
+
+static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj,
+				   struct bin_attribute *attr,
+				   struct vm_area_struct *vma)
+{
+	return pci_mmap_resource(kobj, attr, vma, 0);
+}
+
+/**
+ * pci_remove_resource_files - cleanup resource files
+ * @pdev: pci_dev to cleanup
+ *
+ * If we created resource files for @dev, remove them from sysfs and
+ * free their resources.
+ */
+void pci_remove_resource_files(struct pci_dev *pdev)
+{
+	int i;
+
+	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
+		struct bin_attribute *res_attr;
+
+		res_attr = pdev->res_attr[i];
+		if (res_attr) {
+			sysfs_remove_bin_file(&pdev->dev.kobj, res_attr);
+			kfree(res_attr);
+		}
+
+		res_attr = pdev->res_attr_wc[i];
+		if (res_attr) {
+			sysfs_remove_bin_file(&pdev->dev.kobj, res_attr);
+			kfree(res_attr);
+		}
+	}
+}
+
+static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num)
+{
+	struct pci_bus_region bar;
+	struct pci_controller *hose = pdev->sysdata;
+	long dense_offset;
+	unsigned long sparse_size;
+
+	pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]);
+
+	/* All core logic chips have 4G sparse address space, except
+	   CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM
+	   definitions in asm/core_xxx.h files). This corresponds
+	   to 128M or 512M of the bus space. */
+	dense_offset = (long)(hose->dense_mem_base - hose->sparse_mem_base);
+	sparse_size = dense_offset >= 0x400000000UL ? 0x20000000 : 0x8000000;
+
+	return bar.end < sparse_size;
+}
+
+static int pci_create_one_attr(struct pci_dev *pdev, int num, char *name,
+			       char *suffix, struct bin_attribute *res_attr,
+			       unsigned long sparse)
+{
+	size_t size = pci_resource_len(pdev, num);
+
+	sprintf(name, "resource%d%s", num, suffix);
+	res_attr->mmap = sparse ? pci_mmap_resource_sparse :
+				  pci_mmap_resource_dense;
+	res_attr->attr.name = name;
+	res_attr->attr.mode = S_IRUSR | S_IWUSR;
+	res_attr->size = sparse ? size << 5 : size;
+	res_attr->private = &pdev->resource[num];
+	return sysfs_create_bin_file(&pdev->dev.kobj, res_attr);
+}
+
+static int pci_create_attr(struct pci_dev *pdev, int num)
+{
+	/* allocate attribute structure, piggyback attribute name */
+	int retval, nlen1, nlen2 = 0, res_count = 1;
+	unsigned long sparse_base, dense_base;
+	struct bin_attribute *attr;
+	struct pci_controller *hose = pdev->sysdata;
+	char *suffix, *attr_name;
+
+	suffix = "";	/* Assume bwx machine, normal resourceN files. */
+	nlen1 = 10;
+
+	if (pdev->resource[num].flags & IORESOURCE_MEM) {
+		sparse_base = hose->sparse_mem_base;
+		dense_base = hose->dense_mem_base;
+		if (sparse_base && !sparse_mem_mmap_fits(pdev, num)) {
+			sparse_base = 0;
+			suffix = "_dense";
+			nlen1 = 16;	/* resourceN_dense */
+		}
+	} else {
+		sparse_base = hose->sparse_io_base;
+		dense_base = hose->dense_io_base;
+	}
+
+	if (sparse_base) {
+		suffix = "_sparse";
+		nlen1 = 17;
+		if (dense_base) {
+			nlen2 = 16;	/* resourceN_dense */
+			res_count = 2;
+		}
+	}
+
+	attr = kzalloc(sizeof(*attr) * res_count + nlen1 + nlen2, GFP_ATOMIC);
+	if (!attr)
+		return -ENOMEM;
+
+	/* Create bwx, sparse or single dense file */
+	attr_name = (char *)(attr + res_count);
+	pdev->res_attr[num] = attr;
+	retval = pci_create_one_attr(pdev, num, attr_name, suffix, attr,
+				     sparse_base);
+	if (retval || res_count == 1)
+		return retval;
+
+	/* Create dense file */
+	attr_name += nlen1;
+	attr++;
+	pdev->res_attr_wc[num] = attr;
+	return pci_create_one_attr(pdev, num, attr_name, "_dense", attr, 0);
+}
+
+/**
+ * pci_create_resource_files - create resource files in sysfs for @pdev
+ * @pdev: pci_dev in question
+ *
+ * Walk the resources in @dev creating files for each resource available.
+ *
+ * Return: %0 on success, or negative error code
+ */
+int pci_create_resource_files(struct pci_dev *pdev)
+{
+	int i;
+	int retval;
+
+	/* Expose the PCI resources from this device as files */
+	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
+
+		/* skip empty resources */
+		if (!pci_resource_len(pdev, i))
+			continue;
+
+		retval = pci_create_attr(pdev, i);
+		if (retval) {
+			pci_remove_resource_files(pdev);
+			return retval;
+		}
+	}
+	return 0;
+}
+
+/* Legacy I/O bus mapping stuff. */
+
+static int __legacy_mmap_fits(struct pci_controller *hose,
+			      struct vm_area_struct *vma,
+			      unsigned long res_size, int sparse)
+{
+	unsigned long nr, start, size;
+
+	nr = vma_pages(vma);
+	start = vma->vm_pgoff;
+	size = ((res_size - 1) >> PAGE_SHIFT) + 1;
+
+	if (start < size && size - start >= nr)
+		return 1;
+	WARN(1, "process \"%s\" tried to map%s 0x%08lx-0x%08lx on hose %d "
+		"(size 0x%08lx)\n",
+		current->comm, sparse ? " sparse" : "", start, start + nr,
+		hose->index, size);
+	return 0;
+}
+
+static inline int has_sparse(struct pci_controller *hose,
+			     enum pci_mmap_state mmap_type)
+{
+	unsigned long base;
+
+	base = (mmap_type == pci_mmap_mem) ? hose->sparse_mem_base :
+					     hose->sparse_io_base;
+
+	return base != 0;
+}
+
+int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma,
+			       enum pci_mmap_state mmap_type)
+{
+	struct pci_controller *hose = bus->sysdata;
+	int sparse = has_sparse(hose, mmap_type);
+	unsigned long res_size;
+
+	res_size = (mmap_type == pci_mmap_mem) ? bus->legacy_mem->size :
+						 bus->legacy_io->size;
+	if (!__legacy_mmap_fits(hose, vma, res_size, sparse))
+		return -EINVAL;
+
+	return hose_mmap_page_range(hose, vma, mmap_type, sparse);
+}
+
+/**
+ * pci_adjust_legacy_attr - adjustment of legacy file attributes
+ * @bus: bus to create files under
+ * @mmap_type: I/O port or memory
+ *
+ * Adjust file name and size for sparse mappings.
+ */
+void pci_adjust_legacy_attr(struct pci_bus *bus, enum pci_mmap_state mmap_type)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	if (!has_sparse(hose, mmap_type))
+		return;
+
+	if (mmap_type == pci_mmap_mem) {
+		bus->legacy_mem->attr.name = "legacy_mem_sparse";
+		bus->legacy_mem->size <<= 5;
+	} else {
+		bus->legacy_io->attr.name = "legacy_io_sparse";
+		bus->legacy_io->size <<= 5;
+	}
+	return;
+}
+
+/* Legacy I/O bus read/write functions */
+int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, size_t size)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	port += hose->io_space->start;
+
+	switch(size) {
+	case 1:
+		*((u8 *)val) = inb(port);
+		return 1;
+	case 2:
+		if (port & 1)
+			return -EINVAL;
+		*((u16 *)val) = inw(port);
+		return 2;
+	case 4:
+		if (port & 3)
+			return -EINVAL;
+		*((u32 *)val) = inl(port);
+		return 4;
+	}
+	return -EINVAL;
+}
+
+int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, size_t size)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	port += hose->io_space->start;
+
+	switch(size) {
+	case 1:
+		outb(port, val);
+		return 1;
+	case 2:
+		if (port & 1)
+			return -EINVAL;
+		outw(port, val);
+		return 2;
+	case 4:
+		if (port & 3)
+			return -EINVAL;
+		outl(port, val);
+		return 4;
+	}
+	return -EINVAL;
+}
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
new file mode 100644
index 000000000..64fbfb076
--- /dev/null
+++ b/arch/alpha/kernel/pci.c
@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/pci.c
+ *
+ * Extruded from code written by
+ *	Dave Rusling (david.rusling@reo.mts.dec.com)
+ *	David Mosberger (davidm@cs.arizona.edu)
+ */
+
+/* 2.3.x PCI/resources, 1999 Andrea Arcangeli <andrea@suse.de> */
+
+/*
+ * Nov 2000, Ivan Kokshaysky <ink@jurassic.park.msu.ru>
+ *	     PCI-PCI bridges cleanup
+ */
+#include <linux/string.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/memblock.h>
+#include <linux/module.h>
+#include <linux/cache.h>
+#include <linux/slab.h>
+#include <linux/syscalls.h>
+#include <asm/machvec.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+/*
+ * Some string constants used by the various core logics. 
+ */
+
+const char *const pci_io_names[] = {
+  "PCI IO bus 0", "PCI IO bus 1", "PCI IO bus 2", "PCI IO bus 3",
+  "PCI IO bus 4", "PCI IO bus 5", "PCI IO bus 6", "PCI IO bus 7"
+};
+
+const char *const pci_mem_names[] = {
+  "PCI mem bus 0", "PCI mem bus 1", "PCI mem bus 2", "PCI mem bus 3",
+  "PCI mem bus 4", "PCI mem bus 5", "PCI mem bus 6", "PCI mem bus 7"
+};
+
+const char pci_hae0_name[] = "HAE0";
+
+/*
+ * If PCI_PROBE_ONLY in pci_flags is set, we don't change any PCI resource
+ * assignments.
+ */
+
+/*
+ * The PCI controller list.
+ */
+
+struct pci_controller *hose_head, **hose_tail = &hose_head;
+struct pci_controller *pci_isa_hose;
+
+/*
+ * Quirks.
+ */
+
+static void quirk_isa_bridge(struct pci_dev *dev)
+{
+	dev->class = PCI_CLASS_BRIDGE_ISA << 8;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82378, quirk_isa_bridge);
+
+static void quirk_cypress(struct pci_dev *dev)
+{
+	/* The Notorious Cy82C693 chip.  */
+
+	/* The generic legacy mode IDE fixup in drivers/pci/probe.c
+	   doesn't work correctly with the Cypress IDE controller as
+	   it has non-standard register layout.  Fix that.  */
+	if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE) {
+		dev->resource[2].start = dev->resource[3].start = 0;
+		dev->resource[2].end = dev->resource[3].end = 0;
+		dev->resource[2].flags = dev->resource[3].flags = 0;
+		if (PCI_FUNC(dev->devfn) == 2) {
+			dev->resource[0].start = 0x170;
+			dev->resource[0].end = 0x177;
+			dev->resource[1].start = 0x376;
+			dev->resource[1].end = 0x376;
+		}
+	}
+
+	/* The Cypress bridge responds on the PCI bus in the address range
+	   0xffff0000-0xffffffff (conventional x86 BIOS ROM).  There is no
+	   way to turn this off.  The bridge also supports several extended
+	   BIOS ranges (disabled after power-up), and some consoles do turn
+	   them on.  So if we use a large direct-map window, or a large SG
+	   window, we must avoid the entire 0xfff00000-0xffffffff region.  */
+	if (dev->class >> 8 == PCI_CLASS_BRIDGE_ISA) {
+		if (__direct_map_base + __direct_map_size >= 0xfff00000UL)
+			__direct_map_size = 0xfff00000UL - __direct_map_base;
+		else {
+			struct pci_controller *hose = dev->sysdata;
+			struct pci_iommu_arena *pci = hose->sg_pci;
+			if (pci && pci->dma_base + pci->size >= 0xfff00000UL)
+				pci->size = 0xfff00000UL - pci->dma_base;
+		}
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, quirk_cypress);
+
+/* Called for each device after PCI setup is done. */
+static void pcibios_fixup_final(struct pci_dev *dev)
+{
+	unsigned int class = dev->class >> 8;
+
+	if (class == PCI_CLASS_BRIDGE_ISA || class == PCI_CLASS_BRIDGE_EISA) {
+		dev->dma_mask = MAX_ISA_DMA_ADDRESS - 1;
+		isa_bridge = dev;
+	}
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_final);
+
+/* Just declaring that the power-of-ten prefixes are actually the
+   power-of-two ones doesn't make it true :) */
+#define KB			1024
+#define MB			(1024*KB)
+#define GB			(1024*MB)
+
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
+		       resource_size_t size, resource_size_t align)
+{
+	struct pci_dev *dev = data;
+	struct pci_controller *hose = dev->sysdata;
+	unsigned long alignto;
+	resource_size_t start = res->start;
+
+	if (res->flags & IORESOURCE_IO) {
+		/* Make sure we start at our min on all hoses */
+		if (start - hose->io_space->start < PCIBIOS_MIN_IO)
+			start = PCIBIOS_MIN_IO + hose->io_space->start;
+
+		/*
+		 * Put everything into 0x00-0xff region modulo 0x400
+		 */
+		if (start & 0x300)
+			start = (start + 0x3ff) & ~0x3ff;
+	}
+	else if	(res->flags & IORESOURCE_MEM) {
+		/* Make sure we start at our min on all hoses */
+		if (start - hose->mem_space->start < PCIBIOS_MIN_MEM)
+			start = PCIBIOS_MIN_MEM + hose->mem_space->start;
+
+		/*
+		 * The following holds at least for the Low Cost
+		 * Alpha implementation of the PCI interface:
+		 *
+		 * In sparse memory address space, the first
+		 * octant (16MB) of every 128MB segment is
+		 * aliased to the very first 16 MB of the
+		 * address space (i.e., it aliases the ISA
+		 * memory address space).  Thus, we try to
+		 * avoid allocating PCI devices in that range.
+		 * Can be allocated in 2nd-7th octant only.
+		 * Devices that need more than 112MB of
+		 * address space must be accessed through
+		 * dense memory space only!
+		 */
+
+		/* Align to multiple of size of minimum base.  */
+		alignto = max_t(resource_size_t, 0x1000, align);
+		start = ALIGN(start, alignto);
+		if (hose->sparse_mem_base && size <= 7 * 16*MB) {
+			if (((start / (16*MB)) & 0x7) == 0) {
+				start &= ~(128*MB - 1);
+				start += 16*MB;
+				start  = ALIGN(start, alignto);
+			}
+			if (start/(128*MB) != (start + size - 1)/(128*MB)) {
+				start &= ~(128*MB - 1);
+				start += (128 + 16)*MB;
+				start  = ALIGN(start, alignto);
+			}
+		}
+	}
+
+	return start;
+}
+#undef KB
+#undef MB
+#undef GB
+
+static int __init
+pcibios_init(void)
+{
+	if (alpha_mv.init_pci)
+		alpha_mv.init_pci();
+	return 0;
+}
+
+subsys_initcall(pcibios_init);
+
+#ifdef ALPHA_RESTORE_SRM_SETUP
+/* Store PCI device configuration left by SRM here. */
+struct pdev_srm_saved_conf
+{
+	struct pdev_srm_saved_conf *next;
+	struct pci_dev *dev;
+};
+
+static struct pdev_srm_saved_conf *srm_saved_configs;
+
+static void pdev_save_srm_config(struct pci_dev *dev)
+{
+	struct pdev_srm_saved_conf *tmp;
+	static int printed = 0;
+
+	if (!alpha_using_srm || pci_has_flag(PCI_PROBE_ONLY))
+		return;
+
+	if (!printed) {
+		printk(KERN_INFO "pci: enabling save/restore of SRM state\n");
+		printed = 1;
+	}
+
+	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+	if (!tmp) {
+		printk(KERN_ERR "%s: kmalloc() failed!\n", __func__);
+		return;
+	}
+	tmp->next = srm_saved_configs;
+	tmp->dev = dev;
+
+	pci_save_state(dev);
+
+	srm_saved_configs = tmp;
+}
+
+void
+pci_restore_srm_config(void)
+{
+	struct pdev_srm_saved_conf *tmp;
+
+	/* No need to restore if probed only. */
+	if (pci_has_flag(PCI_PROBE_ONLY))
+		return;
+
+	/* Restore SRM config. */
+	for (tmp = srm_saved_configs; tmp; tmp = tmp->next) {
+		pci_restore_state(tmp->dev);
+	}
+}
+#else
+#define pdev_save_srm_config(dev)	do {} while (0)
+#endif
+
+void pcibios_fixup_bus(struct pci_bus *bus)
+{
+	struct pci_dev *dev = bus->self;
+
+	if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
+	    (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
+		pci_read_bridge_bases(bus);
+	}
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		pdev_save_srm_config(dev);
+	}
+}
+
+/*
+ *  If we set up a device for bus mastering, we need to check the latency
+ *  timer as certain firmware forgets to set it properly, as seen
+ *  on SX164 and LX164 with SRM.
+ */
+void
+pcibios_set_master(struct pci_dev *dev)
+{
+	u8 lat;
+	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
+	if (lat >= 16) return;
+	printk("PCI: Setting latency timer of device %s to 64\n",
+							pci_name(dev));
+	pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
+}
+
+void __init
+pcibios_claim_one_bus(struct pci_bus *b)
+{
+	struct pci_dev *dev;
+	struct pci_bus *child_bus;
+
+	list_for_each_entry(dev, &b->devices, bus_list) {
+		int i;
+
+		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+			struct resource *r = &dev->resource[i];
+
+			if (r->parent || !r->start || !r->flags)
+				continue;
+			if (pci_has_flag(PCI_PROBE_ONLY) ||
+			    (r->flags & IORESOURCE_PCI_FIXED)) {
+				if (pci_claim_resource(dev, i) == 0)
+					continue;
+
+				pci_claim_bridge_resource(dev, i);
+			}
+		}
+	}
+
+	list_for_each_entry(child_bus, &b->children, node)
+		pcibios_claim_one_bus(child_bus);
+}
+
+static void __init
+pcibios_claim_console_setup(void)
+{
+	struct pci_bus *b;
+
+	list_for_each_entry(b, &pci_root_buses, node)
+		pcibios_claim_one_bus(b);
+}
+
+void __init
+common_init_pci(void)
+{
+	struct pci_controller *hose;
+	struct list_head resources;
+	struct pci_host_bridge *bridge;
+	struct pci_bus *bus;
+	int ret, next_busno;
+	int need_domain_info = 0;
+	u32 pci_mem_end;
+	u32 sg_base;
+	unsigned long end;
+
+	/* Scan all of the recorded PCI controllers.  */
+	for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
+		sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0;
+
+		/* Adjust hose mem_space limit to prevent PCI allocations
+		   in the iommu windows. */
+		pci_mem_end = min((u32)__direct_map_base, sg_base) - 1;
+		end = hose->mem_space->start + pci_mem_end;
+		if (hose->mem_space->end > end)
+			hose->mem_space->end = end;
+
+		INIT_LIST_HEAD(&resources);
+		pci_add_resource_offset(&resources, hose->io_space,
+					hose->io_space->start);
+		pci_add_resource_offset(&resources, hose->mem_space,
+					hose->mem_space->start);
+
+		bridge = pci_alloc_host_bridge(0);
+		if (!bridge)
+			continue;
+
+		list_splice_init(&resources, &bridge->windows);
+		bridge->dev.parent = NULL;
+		bridge->sysdata = hose;
+		bridge->busnr = next_busno;
+		bridge->ops = alpha_mv.pci_ops;
+		bridge->swizzle_irq = alpha_mv.pci_swizzle;
+		bridge->map_irq = alpha_mv.pci_map_irq;
+
+		ret = pci_scan_root_bus_bridge(bridge);
+		if (ret) {
+			pci_free_host_bridge(bridge);
+			continue;
+		}
+
+		bus = hose->bus = bridge->bus;
+		hose->need_domain_info = need_domain_info;
+		next_busno = bus->busn_res.end + 1;
+		/* Don't allow 8-bit bus number overflow inside the hose -
+		   reserve some space for bridges. */ 
+		if (next_busno > 224) {
+			next_busno = 0;
+			need_domain_info = 1;
+		}
+	}
+
+	pcibios_claim_console_setup();
+
+	pci_assign_unassigned_resources();
+	for (hose = hose_head; hose; hose = hose->next) {
+		bus = hose->bus;
+		if (bus)
+			pci_bus_add_devices(bus);
+	}
+}
+
+struct pci_controller * __init
+alloc_pci_controller(void)
+{
+	struct pci_controller *hose;
+
+	hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);
+	if (!hose)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(*hose));
+
+	*hose_tail = hose;
+	hose_tail = &hose->next;
+
+	return hose;
+}
+
+struct resource * __init
+alloc_resource(void)
+{
+	void *ptr = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
+
+	if (!ptr)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(struct resource));
+
+	return ptr;
+}
+
+
+/* Provide information on locations of various I/O regions in physical
+   memory.  Do this on a per-card basis so that we choose the right hose.  */
+
+SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
+		unsigned long, dfn)
+{
+	struct pci_controller *hose;
+	struct pci_dev *dev;
+
+	/* from hose or from bus.devfn */
+	if (which & IOBASE_FROM_HOSE) {
+		for(hose = hose_head; hose; hose = hose->next) 
+			if (hose->index == bus) break;
+		if (!hose) return -ENODEV;
+	} else {
+		/* Special hook for ISA access.  */
+		if (bus == 0 && dfn == 0) {
+			hose = pci_isa_hose;
+		} else {
+			dev = pci_get_domain_bus_and_slot(0, bus, dfn);
+			if (!dev)
+				return -ENODEV;
+			hose = dev->sysdata;
+			pci_dev_put(dev);
+		}
+	}
+
+	switch (which & ~IOBASE_FROM_HOSE) {
+	case IOBASE_HOSE:
+		return hose->index;
+	case IOBASE_SPARSE_MEM:
+		return hose->sparse_mem_base;
+	case IOBASE_DENSE_MEM:
+		return hose->dense_mem_base;
+	case IOBASE_SPARSE_IO:
+		return hose->sparse_io_base;
+	case IOBASE_DENSE_IO:
+		return hose->dense_io_base;
+	case IOBASE_ROOT_BUS:
+		return hose->bus->number;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+/* Destroy an __iomem token.  Not copied from lib/iomap.c.  */
+
+void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
+{
+	if (__is_mmio(addr))
+		iounmap(addr);
+}
+
+EXPORT_SYMBOL(pci_iounmap);
+
+/* FIXME: Some boxes have multiple ISA bridges! */
+struct pci_dev *isa_bridge;
+EXPORT_SYMBOL(isa_bridge);
diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h
new file mode 100644
index 000000000..18043af45
--- /dev/null
+++ b/arch/alpha/kernel/pci_impl.h
@@ -0,0 +1,195 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/arch/alpha/kernel/pci_impl.h
+ *
+ * This file contains declarations and inline functions for interfacing
+ * with the PCI initialization routines.
+ */
+
+struct pci_dev;
+struct pci_controller;
+struct pci_iommu_arena;
+
+/*
+ * We can't just blindly use 64K for machines with EISA busses; they
+ * may also have PCI-PCI bridges present, and then we'd configure the
+ * bridge incorrectly.
+ *
+ * Also, we start at 0x8000 or 0x9000, in hopes to get all devices'
+ * IO space areas allocated *before* 0xC000; this is because certain
+ * BIOSes (Millennium for one) use PCI Config space "mechanism #2"
+ * accesses to probe the bus. If a device's registers appear at 0xC000,
+ * it may see an INx/OUTx at that address during BIOS emulation of the
+ * VGA BIOS, and some cards, notably Adaptec 2940UW, take mortal offense.
+ */
+
+#define EISA_DEFAULT_IO_BASE	0x9000	/* start above 8th slot */
+#define DEFAULT_IO_BASE		0x8000	/* start at 8th slot */
+
+/*
+ * We try to make the DEFAULT_MEM_BASE addresses *always* have more than
+ * a single bit set. This is so that devices like the broken Myrinet card
+ * will always have a PCI memory address that will never match a IDSEL
+ * address in PCI Config space, which can cause problems with early rev cards.
+ */
+
+/*
+ * An XL is AVANTI (APECS) family, *but* it has only 27 bits of ISA address
+ * that get passed through the PCI<->ISA bridge chip. Although this causes
+ * us to set the PCI->Mem window bases lower than normal, we still allocate
+ * PCI bus devices' memory addresses *below* the low DMA mapping window,
+ * and hope they fit below 64Mb (to avoid conflicts), and so that they can
+ * be accessed via SPARSE space.
+ *
+ * We accept the risk that a broken Myrinet card will be put into a true XL
+ * and thus can more easily run into the problem described below.
+ */
+#define XL_DEFAULT_MEM_BASE ((16+2)*1024*1024) /* 16M to 64M-1 is avail */
+
+/*
+ * APECS and LCA have only 34 bits for physical addresses, thus limiting PCI
+ * bus memory addresses for SPARSE access to be less than 128Mb.
+ */
+#define APECS_AND_LCA_DEFAULT_MEM_BASE ((16+2)*1024*1024)
+
+/*
+ * Because MCPCIA and T2 core logic support more bits for
+ * physical addresses, they should allow an expanded range of SPARSE
+ * memory addresses.  However, we do not use them all, in order to
+ * avoid the HAE manipulation that would be needed.
+ */
+#define MCPCIA_DEFAULT_MEM_BASE ((32+2)*1024*1024)
+#define T2_DEFAULT_MEM_BASE ((16+1)*1024*1024)
+
+/*
+ * Because CIA and PYXIS have more bits for physical addresses,
+ * they support an expanded range of SPARSE memory addresses.
+ */
+#define DEFAULT_MEM_BASE ((128+16)*1024*1024)
+
+/* ??? Experimenting with no HAE for CIA.  */
+#define CIA_DEFAULT_MEM_BASE ((32+2)*1024*1024)
+
+#define IRONGATE_DEFAULT_MEM_BASE ((256*8-16)*1024*1024)
+
+#define DEFAULT_AGP_APER_SIZE	(64*1024*1024)
+
+/* 
+ * A small note about bridges and interrupts.  The DECchip 21050 (and
+ * later) adheres to the PCI-PCI bridge specification.  This says that
+ * the interrupts on the other side of a bridge are swizzled in the
+ * following manner:
+ *
+ * Dev    Interrupt   Interrupt 
+ *        Pin on      Pin on 
+ *        Device      Connector
+ *
+ *   4    A           A
+ *        B           B
+ *        C           C
+ *        D           D
+ * 
+ *   5    A           B
+ *        B           C
+ *        C           D
+ *        D           A
+ *
+ *   6    A           C
+ *        B           D
+ *        C           A
+ *        D           B
+ *
+ *   7    A           D
+ *        B           A
+ *        C           B
+ *        D           C
+ *
+ *   Where A = pin 1, B = pin 2 and so on and pin=0 = default = A.
+ *   Thus, each swizzle is ((pin-1) + (device#-4)) % 4
+ *
+ *   pci_swizzle_interrupt_pin() swizzles for exactly one bridge.  The routine
+ *   pci_common_swizzle() handles multiple bridges.  But there are a
+ *   couple boards that do strange things.
+ */
+
+
+/* The following macro is used to implement the table-based irq mapping
+   function for all single-bus Alphas.  */
+
+#define COMMON_TABLE_LOOKUP						\
+({ long _ctl_ = -1; 							\
+   if (slot >= min_idsel && slot <= max_idsel && pin < irqs_per_slot)	\
+     _ctl_ = irq_tab[slot - min_idsel][pin];				\
+   _ctl_; })
+
+
+/* A PCI IOMMU allocation arena.  There are typically two of these
+   regions per bus.  */
+/* ??? The 8400 has a 32-byte pte entry, and the entire table apparently
+   lives directly on the host bridge (no tlb?).  We don't support this
+   machine, but if we ever did, we'd need to parameterize all this quite
+   a bit further.  Probably with per-bus operation tables.  */
+
+struct pci_iommu_arena
+{
+	spinlock_t lock;
+	struct pci_controller *hose;
+#define IOMMU_INVALID_PTE 0x2 /* 32:63 bits MBZ */
+#define IOMMU_RESERVED_PTE 0xface
+	unsigned long *ptes;
+	dma_addr_t dma_base;
+	unsigned int size;
+	unsigned int next_entry;
+	unsigned int align_entry;
+};
+
+#if defined(CONFIG_ALPHA_SRM) && \
+    (defined(CONFIG_ALPHA_CIA) || defined(CONFIG_ALPHA_LCA) || \
+     defined(CONFIG_ALPHA_AVANTI))
+# define NEED_SRM_SAVE_RESTORE
+#else
+# undef NEED_SRM_SAVE_RESTORE
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(NEED_SRM_SAVE_RESTORE)
+# define ALPHA_RESTORE_SRM_SETUP
+#else
+# undef ALPHA_RESTORE_SRM_SETUP
+#endif
+
+#ifdef ALPHA_RESTORE_SRM_SETUP
+extern void pci_restore_srm_config(void);
+#else
+#define pci_restore_srm_config()	do {} while (0)
+#endif
+
+/* The hose list.  */
+extern struct pci_controller *hose_head, **hose_tail;
+extern struct pci_controller *pci_isa_hose;
+
+extern unsigned long alpha_agpgart_size;
+
+extern void common_init_pci(void);
+#define common_swizzle pci_common_swizzle
+extern struct pci_controller *alloc_pci_controller(void);
+extern struct resource *alloc_resource(void);
+
+extern struct pci_iommu_arena *iommu_arena_new_node(int,
+						    struct pci_controller *,
+					            dma_addr_t, unsigned long,
+					            unsigned long);
+extern struct pci_iommu_arena *iommu_arena_new(struct pci_controller *,
+					       dma_addr_t, unsigned long,
+					       unsigned long);
+extern const char *const pci_io_names[];
+extern const char *const pci_mem_names[];
+extern const char pci_hae0_name[];
+
+extern unsigned long size_for_memory(unsigned long max);
+
+extern int iommu_reserve(struct pci_iommu_arena *, long, long);
+extern int iommu_release(struct pci_iommu_arena *, long, long);
+extern int iommu_bind(struct pci_iommu_arena *, long, long, struct page **);
+extern int iommu_unbind(struct pci_iommu_arena *, long, long);
+
+
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
new file mode 100644
index 000000000..e83a02ed5
--- /dev/null
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -0,0 +1,933 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/pci_iommu.c
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/gfp.h>
+#include <linux/memblock.h>
+#include <linux/export.h>
+#include <linux/scatterlist.h>
+#include <linux/log2.h>
+#include <linux/dma-map-ops.h>
+#include <linux/iommu-helper.h>
+
+#include <asm/io.h>
+#include <asm/hwrpb.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+#define DEBUG_ALLOC 0
+#if DEBUG_ALLOC > 0
+# define DBGA(args...)		printk(KERN_DEBUG args)
+#else
+# define DBGA(args...)
+#endif
+#if DEBUG_ALLOC > 1
+# define DBGA2(args...)		printk(KERN_DEBUG args)
+#else
+# define DBGA2(args...)
+#endif
+
+#define DEBUG_NODIRECT 0
+
+#define ISA_DMA_MASK		0x00ffffff
+
+static inline unsigned long
+mk_iommu_pte(unsigned long paddr)
+{
+	return (paddr >> (PAGE_SHIFT-1)) | 1;
+}
+
+/* Return the minimum of MAX or the first power of two larger
+   than main memory.  */
+
+unsigned long
+size_for_memory(unsigned long max)
+{
+	unsigned long mem = max_low_pfn << PAGE_SHIFT;
+	if (mem < max)
+		max = roundup_pow_of_two(mem);
+	return max;
+}
+
+struct pci_iommu_arena * __init
+iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
+		     unsigned long window_size, unsigned long align)
+{
+	unsigned long mem_size;
+	struct pci_iommu_arena *arena;
+
+	mem_size = window_size / (PAGE_SIZE / sizeof(unsigned long));
+
+	/* Note that the TLB lookup logic uses bitwise concatenation,
+	   not addition, so the required arena alignment is based on
+	   the size of the window.  Retain the align parameter so that
+	   particular systems can over-align the arena.  */
+	if (align < mem_size)
+		align = mem_size;
+
+	arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
+	if (!arena)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(*arena));
+	arena->ptes = memblock_alloc(mem_size, align);
+	if (!arena->ptes)
+		panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+		      __func__, mem_size, align);
+
+	spin_lock_init(&arena->lock);
+	arena->hose = hose;
+	arena->dma_base = base;
+	arena->size = window_size;
+	arena->next_entry = 0;
+
+	/* Align allocations to a multiple of a page size.  Not needed
+	   unless there are chip bugs.  */
+	arena->align_entry = 1;
+
+	return arena;
+}
+
+struct pci_iommu_arena * __init
+iommu_arena_new(struct pci_controller *hose, dma_addr_t base,
+		unsigned long window_size, unsigned long align)
+{
+	return iommu_arena_new_node(0, hose, base, window_size, align);
+}
+
+/* Must be called with the arena lock held */
+static long
+iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena,
+		       long n, long mask)
+{
+	unsigned long *ptes;
+	long i, p, nent;
+	int pass = 0;
+	unsigned long base;
+	unsigned long boundary_size;
+
+	base = arena->dma_base >> PAGE_SHIFT;
+	boundary_size = dma_get_seg_boundary_nr_pages(dev, PAGE_SHIFT);
+
+	/* Search forward for the first mask-aligned sequence of N free ptes */
+	ptes = arena->ptes;
+	nent = arena->size >> PAGE_SHIFT;
+	p = ALIGN(arena->next_entry, mask + 1);
+	i = 0;
+
+again:
+	while (i < n && p+i < nent) {
+		if (!i && iommu_is_span_boundary(p, n, base, boundary_size)) {
+			p = ALIGN(p + 1, mask + 1);
+			goto again;
+		}
+
+		if (ptes[p+i])
+			p = ALIGN(p + i + 1, mask + 1), i = 0;
+		else
+			i = i + 1;
+	}
+
+	if (i < n) {
+		if (pass < 1) {
+			/*
+			 * Reached the end.  Flush the TLB and restart
+			 * the search from the beginning.
+			*/
+			alpha_mv.mv_pci_tbi(arena->hose, 0, -1);
+
+			pass++;
+			p = 0;
+			i = 0;
+			goto again;
+		} else
+			return -1;
+	}
+
+	/* Success. It's the responsibility of the caller to mark them
+	   in use before releasing the lock */
+	return p;
+}
+
+static long
+iommu_arena_alloc(struct device *dev, struct pci_iommu_arena *arena, long n,
+		  unsigned int align)
+{
+	unsigned long flags;
+	unsigned long *ptes;
+	long i, p, mask;
+
+	spin_lock_irqsave(&arena->lock, flags);
+
+	/* Search for N empty ptes */
+	ptes = arena->ptes;
+	mask = max(align, arena->align_entry) - 1;
+	p = iommu_arena_find_pages(dev, arena, n, mask);
+	if (p < 0) {
+		spin_unlock_irqrestore(&arena->lock, flags);
+		return -1;
+	}
+
+	/* Success.  Mark them all in use, ie not zero and invalid
+	   for the iommu tlb that could load them from under us.
+	   The chip specific bits will fill this in with something
+	   kosher when we return.  */
+	for (i = 0; i < n; ++i)
+		ptes[p+i] = IOMMU_INVALID_PTE;
+
+	arena->next_entry = p + n;
+	spin_unlock_irqrestore(&arena->lock, flags);
+
+	return p;
+}
+
+static void
+iommu_arena_free(struct pci_iommu_arena *arena, long ofs, long n)
+{
+	unsigned long *p;
+	long i;
+
+	p = arena->ptes + ofs;
+	for (i = 0; i < n; ++i)
+		p[i] = 0;
+}
+
+/*
+ * True if the machine supports DAC addressing, and DEV can
+ * make use of it given MASK.
+ */
+static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask)
+{
+	dma_addr_t dac_offset = alpha_mv.pci_dac_offset;
+	int ok = 1;
+
+	/* If this is not set, the machine doesn't support DAC at all.  */
+	if (dac_offset == 0)
+		ok = 0;
+
+	/* The device has to be able to address our DAC bit.  */
+	if ((dac_offset & dev->dma_mask) != dac_offset)
+		ok = 0;
+
+	/* If both conditions above are met, we are fine. */
+	DBGA("pci_dac_dma_supported %s from %ps\n",
+	     ok ? "yes" : "no", __builtin_return_address(0));
+
+	return ok;
+}
+
+/* Map a single buffer of the indicated size for PCI DMA in streaming
+   mode.  The 32-bit PCI bus mastering address to use is returned.
+   Once the device is given the dma address, the device owns this memory
+   until either pci_unmap_single or pci_dma_sync_single is performed.  */
+
+static dma_addr_t
+pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
+		 int dac_allowed)
+{
+	struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose;
+	dma_addr_t max_dma = pdev ? pdev->dma_mask : ISA_DMA_MASK;
+	struct pci_iommu_arena *arena;
+	long npages, dma_ofs, i;
+	unsigned long paddr;
+	dma_addr_t ret;
+	unsigned int align = 0;
+	struct device *dev = pdev ? &pdev->dev : NULL;
+
+	paddr = __pa(cpu_addr);
+
+#if !DEBUG_NODIRECT
+	/* First check to see if we can use the direct map window.  */
+	if (paddr + size + __direct_map_base - 1 <= max_dma
+	    && paddr + size <= __direct_map_size) {
+		ret = paddr + __direct_map_base;
+
+		DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %ps\n",
+		      cpu_addr, size, ret, __builtin_return_address(0));
+
+		return ret;
+	}
+#endif
+
+	/* Next, use DAC if selected earlier.  */
+	if (dac_allowed) {
+		ret = paddr + alpha_mv.pci_dac_offset;
+
+		DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %ps\n",
+		      cpu_addr, size, ret, __builtin_return_address(0));
+
+		return ret;
+	}
+
+	/* If the machine doesn't define a pci_tbi routine, we have to
+	   assume it doesn't support sg mapping, and, since we tried to
+	   use direct_map above, it now must be considered an error. */
+	if (! alpha_mv.mv_pci_tbi) {
+		printk_once(KERN_WARNING "pci_map_single: no HW sg\n");
+		return DMA_MAPPING_ERROR;
+	}
+
+	arena = hose->sg_pci;
+	if (!arena || arena->dma_base + arena->size - 1 > max_dma)
+		arena = hose->sg_isa;
+
+	npages = iommu_num_pages(paddr, size, PAGE_SIZE);
+
+	/* Force allocation to 64KB boundary for ISA bridges. */
+	if (pdev && pdev == isa_bridge)
+		align = 8;
+	dma_ofs = iommu_arena_alloc(dev, arena, npages, align);
+	if (dma_ofs < 0) {
+		printk(KERN_WARNING "pci_map_single failed: "
+		       "could not allocate dma page tables\n");
+		return DMA_MAPPING_ERROR;
+	}
+
+	paddr &= PAGE_MASK;
+	for (i = 0; i < npages; ++i, paddr += PAGE_SIZE)
+		arena->ptes[i + dma_ofs] = mk_iommu_pte(paddr);
+
+	ret = arena->dma_base + dma_ofs * PAGE_SIZE;
+	ret += (unsigned long)cpu_addr & ~PAGE_MASK;
+
+	DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %ps\n",
+	      cpu_addr, size, npages, ret, __builtin_return_address(0));
+
+	return ret;
+}
+
+/* Helper for generic DMA-mapping functions. */
+static struct pci_dev *alpha_gendev_to_pci(struct device *dev)
+{
+	if (dev && dev_is_pci(dev))
+		return to_pci_dev(dev);
+
+	/* Assume that non-PCI devices asking for DMA are either ISA or EISA,
+	   BUG() otherwise. */
+	BUG_ON(!isa_bridge);
+
+	/* Assume non-busmaster ISA DMA when dma_mask is not set (the ISA
+	   bridge is bus master then). */
+	if (!dev || !dev->dma_mask || !*dev->dma_mask)
+		return isa_bridge;
+
+	/* For EISA bus masters, return isa_bridge (it might have smaller
+	   dma_mask due to wiring limitations). */
+	if (*dev->dma_mask >= isa_bridge->dma_mask)
+		return isa_bridge;
+
+	/* This assumes ISA bus master with dma_mask 0xffffff. */
+	return NULL;
+}
+
+static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page,
+				     unsigned long offset, size_t size,
+				     enum dma_data_direction dir,
+				     unsigned long attrs)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	int dac_allowed;
+
+	BUG_ON(dir == DMA_NONE);
+
+	dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; 
+	return pci_map_single_1(pdev, (char *)page_address(page) + offset, 
+				size, dac_allowed);
+}
+
+/* Unmap a single streaming mode DMA translation.  The DMA_ADDR and
+   SIZE must match what was provided for in a previous pci_map_single
+   call.  All other usages are undefined.  After this call, reads by
+   the cpu to the buffer are guaranteed to see whatever the device
+   wrote there.  */
+
+static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
+				 size_t size, enum dma_data_direction dir,
+				 unsigned long attrs)
+{
+	unsigned long flags;
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose;
+	struct pci_iommu_arena *arena;
+	long dma_ofs, npages;
+
+	BUG_ON(dir == DMA_NONE);
+
+	if (dma_addr >= __direct_map_base
+	    && dma_addr < __direct_map_base + __direct_map_size) {
+		/* Nothing to do.  */
+
+		DBGA2("pci_unmap_single: direct [%llx,%zx] from %ps\n",
+		      dma_addr, size, __builtin_return_address(0));
+
+		return;
+	}
+
+	if (dma_addr > 0xffffffff) {
+		DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %ps\n",
+		      dma_addr, size, __builtin_return_address(0));
+		return;
+	}
+
+	arena = hose->sg_pci;
+	if (!arena || dma_addr < arena->dma_base)
+		arena = hose->sg_isa;
+
+	dma_ofs = (dma_addr - arena->dma_base) >> PAGE_SHIFT;
+	if (dma_ofs * PAGE_SIZE >= arena->size) {
+		printk(KERN_ERR "Bogus pci_unmap_single: dma_addr %llx "
+		       " base %llx size %x\n",
+		       dma_addr, arena->dma_base, arena->size);
+		return;
+		BUG();
+	}
+
+	npages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
+
+	spin_lock_irqsave(&arena->lock, flags);
+
+	iommu_arena_free(arena, dma_ofs, npages);
+
+        /* If we're freeing ptes above the `next_entry' pointer (they
+           may have snuck back into the TLB since the last wrap flush),
+           we need to flush the TLB before reallocating the latter.  */
+	if (dma_ofs >= arena->next_entry)
+		alpha_mv.mv_pci_tbi(hose, dma_addr, dma_addr + size - 1);
+
+	spin_unlock_irqrestore(&arena->lock, flags);
+
+	DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %ps\n",
+	      dma_addr, size, npages, __builtin_return_address(0));
+}
+
+/* Allocate and map kernel buffer using consistent mode DMA for PCI
+   device.  Returns non-NULL cpu-view pointer to the buffer if
+   successful and sets *DMA_ADDRP to the pci side dma address as well,
+   else DMA_ADDRP is undefined.  */
+
+static void *alpha_pci_alloc_coherent(struct device *dev, size_t size,
+				      dma_addr_t *dma_addrp, gfp_t gfp,
+				      unsigned long attrs)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	void *cpu_addr;
+	long order = get_order(size);
+
+	gfp &= ~GFP_DMA;
+
+try_again:
+	cpu_addr = (void *)__get_free_pages(gfp | __GFP_ZERO, order);
+	if (! cpu_addr) {
+		printk(KERN_INFO "pci_alloc_consistent: "
+		       "get_free_pages failed from %ps\n",
+			__builtin_return_address(0));
+		/* ??? Really atomic allocation?  Otherwise we could play
+		   with vmalloc and sg if we can't find contiguous memory.  */
+		return NULL;
+	}
+	memset(cpu_addr, 0, size);
+
+	*dma_addrp = pci_map_single_1(pdev, cpu_addr, size, 0);
+	if (*dma_addrp == DMA_MAPPING_ERROR) {
+		free_pages((unsigned long)cpu_addr, order);
+		if (alpha_mv.mv_pci_tbi || (gfp & GFP_DMA))
+			return NULL;
+		/* The address doesn't fit required mask and we
+		   do not have iommu. Try again with GFP_DMA. */
+		gfp |= GFP_DMA;
+		goto try_again;
+	}
+
+	DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %ps\n",
+	      size, cpu_addr, *dma_addrp, __builtin_return_address(0));
+
+	return cpu_addr;
+}
+
+/* Free and unmap a consistent DMA buffer.  CPU_ADDR and DMA_ADDR must
+   be values that were returned from pci_alloc_consistent.  SIZE must
+   be the same as what as passed into pci_alloc_consistent.
+   References to the memory and mappings associated with CPU_ADDR or
+   DMA_ADDR past this call are illegal.  */
+
+static void alpha_pci_free_coherent(struct device *dev, size_t size,
+				    void *cpu_addr, dma_addr_t dma_addr,
+				    unsigned long attrs)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	dma_unmap_single(&pdev->dev, dma_addr, size, DMA_BIDIRECTIONAL);
+	free_pages((unsigned long)cpu_addr, get_order(size));
+
+	DBGA2("pci_free_consistent: [%llx,%zx] from %ps\n",
+	      dma_addr, size, __builtin_return_address(0));
+}
+
+/* Classify the elements of the scatterlist.  Write dma_address
+   of each element with:
+	0   : Followers all physically adjacent.
+	1   : Followers all virtually adjacent.
+	-1  : Not leader, physically adjacent to previous.
+	-2  : Not leader, virtually adjacent to previous.
+   Write dma_length of each leader with the combined lengths of
+   the mergable followers.  */
+
+#define SG_ENT_VIRT_ADDRESS(SG) (sg_virt((SG)))
+#define SG_ENT_PHYS_ADDRESS(SG) __pa(SG_ENT_VIRT_ADDRESS(SG))
+
+static void
+sg_classify(struct device *dev, struct scatterlist *sg, struct scatterlist *end,
+	    int virt_ok)
+{
+	unsigned long next_paddr;
+	struct scatterlist *leader;
+	long leader_flag, leader_length;
+	unsigned int max_seg_size;
+
+	leader = sg;
+	leader_flag = 0;
+	leader_length = leader->length;
+	next_paddr = SG_ENT_PHYS_ADDRESS(leader) + leader_length;
+
+	/* we will not marge sg without device. */
+	max_seg_size = dev ? dma_get_max_seg_size(dev) : 0;
+	for (++sg; sg < end; ++sg) {
+		unsigned long addr, len;
+		addr = SG_ENT_PHYS_ADDRESS(sg);
+		len = sg->length;
+
+		if (leader_length + len > max_seg_size)
+			goto new_segment;
+
+		if (next_paddr == addr) {
+			sg->dma_address = -1;
+			leader_length += len;
+		} else if (((next_paddr | addr) & ~PAGE_MASK) == 0 && virt_ok) {
+			sg->dma_address = -2;
+			leader_flag = 1;
+			leader_length += len;
+		} else {
+new_segment:
+			leader->dma_address = leader_flag;
+			leader->dma_length = leader_length;
+			leader = sg;
+			leader_flag = 0;
+			leader_length = len;
+		}
+
+		next_paddr = addr + len;
+	}
+
+	leader->dma_address = leader_flag;
+	leader->dma_length = leader_length;
+}
+
+/* Given a scatterlist leader, choose an allocation method and fill
+   in the blanks.  */
+
+static int
+sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
+	struct scatterlist *out, struct pci_iommu_arena *arena,
+	dma_addr_t max_dma, int dac_allowed)
+{
+	unsigned long paddr = SG_ENT_PHYS_ADDRESS(leader);
+	long size = leader->dma_length;
+	struct scatterlist *sg;
+	unsigned long *ptes;
+	long npages, dma_ofs, i;
+
+#if !DEBUG_NODIRECT
+	/* If everything is physically contiguous, and the addresses
+	   fall into the direct-map window, use it.  */
+	if (leader->dma_address == 0
+	    && paddr + size + __direct_map_base - 1 <= max_dma
+	    && paddr + size <= __direct_map_size) {
+		out->dma_address = paddr + __direct_map_base;
+		out->dma_length = size;
+
+		DBGA("    sg_fill: [%p,%lx] -> direct %llx\n",
+		     __va(paddr), size, out->dma_address);
+
+		return 0;
+	}
+#endif
+
+	/* If physically contiguous and DAC is available, use it.  */
+	if (leader->dma_address == 0 && dac_allowed) {
+		out->dma_address = paddr + alpha_mv.pci_dac_offset;
+		out->dma_length = size;
+
+		DBGA("    sg_fill: [%p,%lx] -> DAC %llx\n",
+		     __va(paddr), size, out->dma_address);
+
+		return 0;
+	}
+
+	/* Otherwise, we'll use the iommu to make the pages virtually
+	   contiguous.  */
+
+	paddr &= ~PAGE_MASK;
+	npages = iommu_num_pages(paddr, size, PAGE_SIZE);
+	dma_ofs = iommu_arena_alloc(dev, arena, npages, 0);
+	if (dma_ofs < 0) {
+		/* If we attempted a direct map above but failed, die.  */
+		if (leader->dma_address == 0)
+			return -1;
+
+		/* Otherwise, break up the remaining virtually contiguous
+		   hunks into individual direct maps and retry.  */
+		sg_classify(dev, leader, end, 0);
+		return sg_fill(dev, leader, end, out, arena, max_dma, dac_allowed);
+	}
+
+	out->dma_address = arena->dma_base + dma_ofs*PAGE_SIZE + paddr;
+	out->dma_length = size;
+
+	DBGA("    sg_fill: [%p,%lx] -> sg %llx np %ld\n",
+	     __va(paddr), size, out->dma_address, npages);
+
+	/* All virtually contiguous.  We need to find the length of each
+	   physically contiguous subsegment to fill in the ptes.  */
+	ptes = &arena->ptes[dma_ofs];
+	sg = leader;
+	do {
+#if DEBUG_ALLOC > 0
+		struct scatterlist *last_sg = sg;
+#endif
+
+		size = sg->length;
+		paddr = SG_ENT_PHYS_ADDRESS(sg);
+
+		while (sg+1 < end && (int) sg[1].dma_address == -1) {
+			size += sg[1].length;
+			sg = sg_next(sg);
+		}
+
+		npages = iommu_num_pages(paddr, size, PAGE_SIZE);
+
+		paddr &= PAGE_MASK;
+		for (i = 0; i < npages; ++i, paddr += PAGE_SIZE)
+			*ptes++ = mk_iommu_pte(paddr);
+
+#if DEBUG_ALLOC > 0
+		DBGA("    (%ld) [%p,%x] np %ld\n",
+		     last_sg - leader, SG_ENT_VIRT_ADDRESS(last_sg),
+		     last_sg->length, npages);
+		while (++last_sg <= sg) {
+			DBGA("        (%ld) [%p,%x] cont\n",
+			     last_sg - leader, SG_ENT_VIRT_ADDRESS(last_sg),
+			     last_sg->length);
+		}
+#endif
+	} while (++sg < end && (int) sg->dma_address < 0);
+
+	return 1;
+}
+
+static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,
+			    int nents, enum dma_data_direction dir,
+			    unsigned long attrs)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	struct scatterlist *start, *end, *out;
+	struct pci_controller *hose;
+	struct pci_iommu_arena *arena;
+	dma_addr_t max_dma;
+	int dac_allowed;
+
+	BUG_ON(dir == DMA_NONE);
+
+	dac_allowed = dev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0;
+
+	/* Fast path single entry scatterlists.  */
+	if (nents == 1) {
+		sg->dma_length = sg->length;
+		sg->dma_address
+		  = pci_map_single_1(pdev, SG_ENT_VIRT_ADDRESS(sg),
+				     sg->length, dac_allowed);
+		if (sg->dma_address == DMA_MAPPING_ERROR)
+			return -EIO;
+		return 1;
+	}
+
+	start = sg;
+	end = sg + nents;
+
+	/* First, prepare information about the entries.  */
+	sg_classify(dev, sg, end, alpha_mv.mv_pci_tbi != 0);
+
+	/* Second, figure out where we're going to map things.  */
+	if (alpha_mv.mv_pci_tbi) {
+		hose = pdev ? pdev->sysdata : pci_isa_hose;
+		max_dma = pdev ? pdev->dma_mask : ISA_DMA_MASK;
+		arena = hose->sg_pci;
+		if (!arena || arena->dma_base + arena->size - 1 > max_dma)
+			arena = hose->sg_isa;
+	} else {
+		max_dma = -1;
+		arena = NULL;
+		hose = NULL;
+	}
+
+	/* Third, iterate over the scatterlist leaders and allocate
+	   dma space as needed.  */
+	for (out = sg; sg < end; ++sg) {
+		if ((int) sg->dma_address < 0)
+			continue;
+		if (sg_fill(dev, sg, end, out, arena, max_dma, dac_allowed) < 0)
+			goto error;
+		out++;
+	}
+
+	/* Mark the end of the list for pci_unmap_sg.  */
+	if (out < end)
+		out->dma_length = 0;
+
+	if (out - start == 0) {
+		printk(KERN_WARNING "pci_map_sg failed: no entries?\n");
+		return -ENOMEM;
+	}
+	DBGA("pci_map_sg: %ld entries\n", out - start);
+
+	return out - start;
+
+ error:
+	printk(KERN_WARNING "pci_map_sg failed: "
+	       "could not allocate dma page tables\n");
+
+	/* Some allocation failed while mapping the scatterlist
+	   entries.  Unmap them now.  */
+	if (out > start)
+		dma_unmap_sg(&pdev->dev, start, out - start, dir);
+	return -ENOMEM;
+}
+
+/* Unmap a set of streaming mode DMA translations.  Again, cpu read
+   rules concerning calls here are the same as for pci_unmap_single()
+   above.  */
+
+static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg,
+			       int nents, enum dma_data_direction dir,
+			       unsigned long attrs)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	unsigned long flags;
+	struct pci_controller *hose;
+	struct pci_iommu_arena *arena;
+	struct scatterlist *end;
+	dma_addr_t max_dma;
+	dma_addr_t fbeg, fend;
+
+	BUG_ON(dir == DMA_NONE);
+
+	if (! alpha_mv.mv_pci_tbi)
+		return;
+
+	hose = pdev ? pdev->sysdata : pci_isa_hose;
+	max_dma = pdev ? pdev->dma_mask : ISA_DMA_MASK;
+	arena = hose->sg_pci;
+	if (!arena || arena->dma_base + arena->size - 1 > max_dma)
+		arena = hose->sg_isa;
+
+	fbeg = -1, fend = 0;
+
+	spin_lock_irqsave(&arena->lock, flags);
+
+	for (end = sg + nents; sg < end; ++sg) {
+		dma_addr_t addr;
+		size_t size;
+		long npages, ofs;
+		dma_addr_t tend;
+
+		addr = sg->dma_address;
+		size = sg->dma_length;
+		if (!size)
+			break;
+
+		if (addr > 0xffffffff) {
+			/* It's a DAC address -- nothing to do.  */
+			DBGA("    (%ld) DAC [%llx,%zx]\n",
+			      sg - end + nents, addr, size);
+			continue;
+		}
+
+		if (addr >= __direct_map_base
+		    && addr < __direct_map_base + __direct_map_size) {
+			/* Nothing to do.  */
+			DBGA("    (%ld) direct [%llx,%zx]\n",
+			      sg - end + nents, addr, size);
+			continue;
+		}
+
+		DBGA("    (%ld) sg [%llx,%zx]\n",
+		     sg - end + nents, addr, size);
+
+		npages = iommu_num_pages(addr, size, PAGE_SIZE);
+		ofs = (addr - arena->dma_base) >> PAGE_SHIFT;
+		iommu_arena_free(arena, ofs, npages);
+
+		tend = addr + size - 1;
+		if (fbeg > addr) fbeg = addr;
+		if (fend < tend) fend = tend;
+	}
+
+        /* If we're freeing ptes above the `next_entry' pointer (they
+           may have snuck back into the TLB since the last wrap flush),
+           we need to flush the TLB before reallocating the latter.  */
+	if ((fend - arena->dma_base) >> PAGE_SHIFT >= arena->next_entry)
+		alpha_mv.mv_pci_tbi(hose, fbeg, fend);
+
+	spin_unlock_irqrestore(&arena->lock, flags);
+
+	DBGA("pci_unmap_sg: %ld entries\n", nents - (end - sg));
+}
+
+/* Return whether the given PCI device DMA address mask can be
+   supported properly.  */
+
+static int alpha_pci_supported(struct device *dev, u64 mask)
+{
+	struct pci_dev *pdev = alpha_gendev_to_pci(dev);
+	struct pci_controller *hose;
+	struct pci_iommu_arena *arena;
+
+	/* If there exists a direct map, and the mask fits either
+	   the entire direct mapped space or the total system memory as
+	   shifted by the map base */
+	if (__direct_map_size != 0
+	    && (__direct_map_base + __direct_map_size - 1 <= mask ||
+		__direct_map_base + (max_low_pfn << PAGE_SHIFT) - 1 <= mask))
+		return 1;
+
+	/* Check that we have a scatter-gather arena that fits.  */
+	hose = pdev ? pdev->sysdata : pci_isa_hose;
+	arena = hose->sg_isa;
+	if (arena && arena->dma_base + arena->size - 1 <= mask)
+		return 1;
+	arena = hose->sg_pci;
+	if (arena && arena->dma_base + arena->size - 1 <= mask)
+		return 1;
+
+	/* As last resort try ZONE_DMA.  */
+	if (!__direct_map_base && MAX_DMA_ADDRESS - IDENT_ADDR - 1 <= mask)
+		return 1;
+
+	return 0;
+}
+
+
+/*
+ * AGP GART extensions to the IOMMU
+ */
+int
+iommu_reserve(struct pci_iommu_arena *arena, long pg_count, long align_mask) 
+{
+	unsigned long flags;
+	unsigned long *ptes;
+	long i, p;
+
+	if (!arena) return -EINVAL;
+
+	spin_lock_irqsave(&arena->lock, flags);
+
+	/* Search for N empty ptes.  */
+	ptes = arena->ptes;
+	p = iommu_arena_find_pages(NULL, arena, pg_count, align_mask);
+	if (p < 0) {
+		spin_unlock_irqrestore(&arena->lock, flags);
+		return -1;
+	}
+
+	/* Success.  Mark them all reserved (ie not zero and invalid)
+	   for the iommu tlb that could load them from under us.
+	   They will be filled in with valid bits by _bind() */
+	for (i = 0; i < pg_count; ++i)
+		ptes[p+i] = IOMMU_RESERVED_PTE;
+
+	arena->next_entry = p + pg_count;
+	spin_unlock_irqrestore(&arena->lock, flags);
+
+	return p;
+}
+
+int 
+iommu_release(struct pci_iommu_arena *arena, long pg_start, long pg_count)
+{
+	unsigned long *ptes;
+	long i;
+
+	if (!arena) return -EINVAL;
+
+	ptes = arena->ptes;
+
+	/* Make sure they're all reserved first... */
+	for(i = pg_start; i < pg_start + pg_count; i++)
+		if (ptes[i] != IOMMU_RESERVED_PTE)
+			return -EBUSY;
+
+	iommu_arena_free(arena, pg_start, pg_count);
+	return 0;
+}
+
+int
+iommu_bind(struct pci_iommu_arena *arena, long pg_start, long pg_count, 
+	   struct page **pages)
+{
+	unsigned long flags;
+	unsigned long *ptes;
+	long i, j;
+
+	if (!arena) return -EINVAL;
+	
+	spin_lock_irqsave(&arena->lock, flags);
+
+	ptes = arena->ptes;
+
+	for(j = pg_start; j < pg_start + pg_count; j++) {
+		if (ptes[j] != IOMMU_RESERVED_PTE) {
+			spin_unlock_irqrestore(&arena->lock, flags);
+			return -EBUSY;
+		}
+	}
+		
+	for(i = 0, j = pg_start; i < pg_count; i++, j++)
+		ptes[j] = mk_iommu_pte(page_to_phys(pages[i]));
+
+	spin_unlock_irqrestore(&arena->lock, flags);
+
+	return 0;
+}
+
+int
+iommu_unbind(struct pci_iommu_arena *arena, long pg_start, long pg_count)
+{
+	unsigned long *p;
+	long i;
+
+	if (!arena) return -EINVAL;
+
+	p = arena->ptes + pg_start;
+	for(i = 0; i < pg_count; i++)
+		p[i] = IOMMU_RESERVED_PTE;
+
+	return 0;
+}
+
+const struct dma_map_ops alpha_pci_ops = {
+	.alloc			= alpha_pci_alloc_coherent,
+	.free			= alpha_pci_free_coherent,
+	.map_page		= alpha_pci_map_page,
+	.unmap_page		= alpha_pci_unmap_page,
+	.map_sg			= alpha_pci_map_sg,
+	.unmap_sg		= alpha_pci_unmap_sg,
+	.dma_supported		= alpha_pci_supported,
+	.mmap			= dma_common_mmap,
+	.get_sgtable		= dma_common_get_sgtable,
+	.alloc_pages		= dma_common_alloc_pages,
+	.free_pages		= dma_common_free_pages,
+};
+EXPORT_SYMBOL(alpha_pci_ops);
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
new file mode 100644
index 000000000..efcf73217
--- /dev/null
+++ b/arch/alpha/kernel/perf_event.c
@@ -0,0 +1,899 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hardware performance events for the Alpha.
+ *
+ * We implement HW counts on the EV67 and subsequent CPUs only.
+ *
+ * (C) 2010 Michael J. Cree
+ *
+ * Somewhat based on the Sparc code, and to a lesser extent the PowerPC and
+ * ARM code, which are copyright by their respective authors.
+ */
+
+#include <linux/perf_event.h>
+#include <linux/kprobes.h>
+#include <linux/kernel.h>
+#include <linux/kdebug.h>
+#include <linux/mutex.h>
+#include <linux/init.h>
+
+#include <asm/hwrpb.h>
+#include <linux/atomic.h>
+#include <asm/irq.h>
+#include <asm/irq_regs.h>
+#include <asm/pal.h>
+#include <asm/wrperfmon.h>
+#include <asm/hw_irq.h>
+
+
+/* The maximum number of PMCs on any Alpha CPU whatsoever. */
+#define MAX_HWEVENTS 3
+#define PMC_NO_INDEX -1
+
+/* For tracking PMCs and the hw events they monitor on each CPU. */
+struct cpu_hw_events {
+	int			enabled;
+	/* Number of events scheduled; also number entries valid in arrays below. */
+	int			n_events;
+	/* Number events added since last hw_perf_disable(). */
+	int			n_added;
+	/* Events currently scheduled. */
+	struct perf_event	*event[MAX_HWEVENTS];
+	/* Event type of each scheduled event. */
+	unsigned long		evtype[MAX_HWEVENTS];
+	/* Current index of each scheduled event; if not yet determined
+	 * contains PMC_NO_INDEX.
+	 */
+	int			current_idx[MAX_HWEVENTS];
+	/* The active PMCs' config for easy use with wrperfmon(). */
+	unsigned long		config;
+	/* The active counters' indices for easy use with wrperfmon(). */
+	unsigned long		idx_mask;
+};
+DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
+
+
+
+/*
+ * A structure to hold the description of the PMCs available on a particular
+ * type of Alpha CPU.
+ */
+struct alpha_pmu_t {
+	/* Mapping of the perf system hw event types to indigenous event types */
+	const int *event_map;
+	/* The number of entries in the event_map */
+	int  max_events;
+	/* The number of PMCs on this Alpha */
+	int  num_pmcs;
+	/*
+	 * All PMC counters reside in the IBOX register PCTR.  This is the
+	 * LSB of the counter.
+	 */
+	int  pmc_count_shift[MAX_HWEVENTS];
+	/*
+	 * The mask that isolates the PMC bits when the LSB of the counter
+	 * is shifted to bit 0.
+	 */
+	unsigned long pmc_count_mask[MAX_HWEVENTS];
+	/* The maximum period the PMC can count. */
+	unsigned long pmc_max_period[MAX_HWEVENTS];
+	/*
+	 * The maximum value that may be written to the counter due to
+	 * hardware restrictions is pmc_max_period - pmc_left.
+	 */
+	long pmc_left[3];
+	 /* Subroutine for allocation of PMCs.  Enforces constraints. */
+	int (*check_constraints)(struct perf_event **, unsigned long *, int);
+	/* Subroutine for checking validity of a raw event for this PMU. */
+	int (*raw_event_valid)(u64 config);
+};
+
+/*
+ * The Alpha CPU PMU description currently in operation.  This is set during
+ * the boot process to the specific CPU of the machine.
+ */
+static const struct alpha_pmu_t *alpha_pmu;
+
+
+#define HW_OP_UNSUPPORTED -1
+
+/*
+ * The hardware description of the EV67, EV68, EV69, EV7 and EV79 PMUs
+ * follow. Since they are identical we refer to them collectively as the
+ * EV67 henceforth.
+ */
+
+/*
+ * EV67 PMC event types
+ *
+ * There is no one-to-one mapping of the possible hw event types to the
+ * actual codes that are used to program the PMCs hence we introduce our
+ * own hw event type identifiers.
+ */
+enum ev67_pmc_event_type {
+	EV67_CYCLES = 1,
+	EV67_INSTRUCTIONS,
+	EV67_BCACHEMISS,
+	EV67_MBOXREPLAY,
+	EV67_LAST_ET
+};
+#define EV67_NUM_EVENT_TYPES (EV67_LAST_ET-EV67_CYCLES)
+
+
+/* Mapping of the hw event types to the perf tool interface */
+static const int ev67_perfmon_event_map[] = {
+	[PERF_COUNT_HW_CPU_CYCLES]	 = EV67_CYCLES,
+	[PERF_COUNT_HW_INSTRUCTIONS]	 = EV67_INSTRUCTIONS,
+	[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
+	[PERF_COUNT_HW_CACHE_MISSES]	 = EV67_BCACHEMISS,
+};
+
+struct ev67_mapping_t {
+	int config;
+	int idx;
+};
+
+/*
+ * The mapping used for one event only - these must be in same order as enum
+ * ev67_pmc_event_type definition.
+ */
+static const struct ev67_mapping_t ev67_mapping[] = {
+	{EV67_PCTR_INSTR_CYCLES, 1},	 /* EV67_CYCLES, */
+	{EV67_PCTR_INSTR_CYCLES, 0},	 /* EV67_INSTRUCTIONS */
+	{EV67_PCTR_INSTR_BCACHEMISS, 1}, /* EV67_BCACHEMISS */
+	{EV67_PCTR_CYCLES_MBOX, 1}	 /* EV67_MBOXREPLAY */
+};
+
+
+/*
+ * Check that a group of events can be simultaneously scheduled on to the
+ * EV67 PMU.  Also allocate counter indices and config.
+ */
+static int ev67_check_constraints(struct perf_event **event,
+				unsigned long *evtype, int n_ev)
+{
+	int idx0;
+	unsigned long config;
+
+	idx0 = ev67_mapping[evtype[0]-1].idx;
+	config = ev67_mapping[evtype[0]-1].config;
+	if (n_ev == 1)
+		goto success;
+
+	BUG_ON(n_ev != 2);
+
+	if (evtype[0] == EV67_MBOXREPLAY || evtype[1] == EV67_MBOXREPLAY) {
+		/* MBOX replay traps must be on PMC 1 */
+		idx0 = (evtype[0] == EV67_MBOXREPLAY) ? 1 : 0;
+		/* Only cycles can accompany MBOX replay traps */
+		if (evtype[idx0] == EV67_CYCLES) {
+			config = EV67_PCTR_CYCLES_MBOX;
+			goto success;
+		}
+	}
+
+	if (evtype[0] == EV67_BCACHEMISS || evtype[1] == EV67_BCACHEMISS) {
+		/* Bcache misses must be on PMC 1 */
+		idx0 = (evtype[0] == EV67_BCACHEMISS) ? 1 : 0;
+		/* Only instructions can accompany Bcache misses */
+		if (evtype[idx0] == EV67_INSTRUCTIONS) {
+			config = EV67_PCTR_INSTR_BCACHEMISS;
+			goto success;
+		}
+	}
+
+	if (evtype[0] == EV67_INSTRUCTIONS || evtype[1] == EV67_INSTRUCTIONS) {
+		/* Instructions must be on PMC 0 */
+		idx0 = (evtype[0] == EV67_INSTRUCTIONS) ? 0 : 1;
+		/* By this point only cycles can accompany instructions */
+		if (evtype[idx0^1] == EV67_CYCLES) {
+			config = EV67_PCTR_INSTR_CYCLES;
+			goto success;
+		}
+	}
+
+	/* Otherwise, darn it, there is a conflict.  */
+	return -1;
+
+success:
+	event[0]->hw.idx = idx0;
+	event[0]->hw.config_base = config;
+	if (n_ev == 2) {
+		event[1]->hw.idx = idx0 ^ 1;
+		event[1]->hw.config_base = config;
+	}
+	return 0;
+}
+
+
+static int ev67_raw_event_valid(u64 config)
+{
+	return config >= EV67_CYCLES && config < EV67_LAST_ET;
+};
+
+
+static const struct alpha_pmu_t ev67_pmu = {
+	.event_map = ev67_perfmon_event_map,
+	.max_events = ARRAY_SIZE(ev67_perfmon_event_map),
+	.num_pmcs = 2,
+	.pmc_count_shift = {EV67_PCTR_0_COUNT_SHIFT, EV67_PCTR_1_COUNT_SHIFT, 0},
+	.pmc_count_mask = {EV67_PCTR_0_COUNT_MASK,  EV67_PCTR_1_COUNT_MASK,  0},
+	.pmc_max_period = {(1UL<<20) - 1, (1UL<<20) - 1, 0},
+	.pmc_left = {16, 4, 0},
+	.check_constraints = ev67_check_constraints,
+	.raw_event_valid = ev67_raw_event_valid,
+};
+
+
+
+/*
+ * Helper routines to ensure that we read/write only the correct PMC bits
+ * when calling the wrperfmon PALcall.
+ */
+static inline void alpha_write_pmc(int idx, unsigned long val)
+{
+	val &= alpha_pmu->pmc_count_mask[idx];
+	val <<= alpha_pmu->pmc_count_shift[idx];
+	val |= (1<<idx);
+	wrperfmon(PERFMON_CMD_WRITE, val);
+}
+
+static inline unsigned long alpha_read_pmc(int idx)
+{
+	unsigned long val;
+
+	val = wrperfmon(PERFMON_CMD_READ, 0);
+	val >>= alpha_pmu->pmc_count_shift[idx];
+	val &= alpha_pmu->pmc_count_mask[idx];
+	return val;
+}
+
+/* Set a new period to sample over */
+static int alpha_perf_event_set_period(struct perf_event *event,
+				struct hw_perf_event *hwc, int idx)
+{
+	long left = local64_read(&hwc->period_left);
+	long period = hwc->sample_period;
+	int ret = 0;
+
+	if (unlikely(left <= -period)) {
+		left = period;
+		local64_set(&hwc->period_left, left);
+		hwc->last_period = period;
+		ret = 1;
+	}
+
+	if (unlikely(left <= 0)) {
+		left += period;
+		local64_set(&hwc->period_left, left);
+		hwc->last_period = period;
+		ret = 1;
+	}
+
+	/*
+	 * Hardware restrictions require that the counters must not be
+	 * written with values that are too close to the maximum period.
+	 */
+	if (unlikely(left < alpha_pmu->pmc_left[idx]))
+		left = alpha_pmu->pmc_left[idx];
+
+	if (left > (long)alpha_pmu->pmc_max_period[idx])
+		left = alpha_pmu->pmc_max_period[idx];
+
+	local64_set(&hwc->prev_count, (unsigned long)(-left));
+
+	alpha_write_pmc(idx, (unsigned long)(-left));
+
+	perf_event_update_userpage(event);
+
+	return ret;
+}
+
+
+/*
+ * Calculates the count (the 'delta') since the last time the PMC was read.
+ *
+ * As the PMCs' full period can easily be exceeded within the perf system
+ * sampling period we cannot use any high order bits as a guard bit in the
+ * PMCs to detect overflow as is done by other architectures.  The code here
+ * calculates the delta on the basis that there is no overflow when ovf is
+ * zero.  The value passed via ovf by the interrupt handler corrects for
+ * overflow.
+ *
+ * This can be racey on rare occasions -- a call to this routine can occur
+ * with an overflowed counter just before the PMI service routine is called.
+ * The check for delta negative hopefully always rectifies this situation.
+ */
+static unsigned long alpha_perf_event_update(struct perf_event *event,
+					struct hw_perf_event *hwc, int idx, long ovf)
+{
+	long prev_raw_count, new_raw_count;
+	long delta;
+
+again:
+	prev_raw_count = local64_read(&hwc->prev_count);
+	new_raw_count = alpha_read_pmc(idx);
+
+	if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+			     new_raw_count) != prev_raw_count)
+		goto again;
+
+	delta = (new_raw_count - (prev_raw_count & alpha_pmu->pmc_count_mask[idx])) + ovf;
+
+	/* It is possible on very rare occasions that the PMC has overflowed
+	 * but the interrupt is yet to come.  Detect and fix this situation.
+	 */
+	if (unlikely(delta < 0)) {
+		delta += alpha_pmu->pmc_max_period[idx] + 1;
+	}
+
+	local64_add(delta, &event->count);
+	local64_sub(delta, &hwc->period_left);
+
+	return new_raw_count;
+}
+
+
+/*
+ * Collect all HW events into the array event[].
+ */
+static int collect_events(struct perf_event *group, int max_count,
+			  struct perf_event *event[], unsigned long *evtype,
+			  int *current_idx)
+{
+	struct perf_event *pe;
+	int n = 0;
+
+	if (!is_software_event(group)) {
+		if (n >= max_count)
+			return -1;
+		event[n] = group;
+		evtype[n] = group->hw.event_base;
+		current_idx[n++] = PMC_NO_INDEX;
+	}
+	for_each_sibling_event(pe, group) {
+		if (!is_software_event(pe) && pe->state != PERF_EVENT_STATE_OFF) {
+			if (n >= max_count)
+				return -1;
+			event[n] = pe;
+			evtype[n] = pe->hw.event_base;
+			current_idx[n++] = PMC_NO_INDEX;
+		}
+	}
+	return n;
+}
+
+
+
+/*
+ * Check that a group of events can be simultaneously scheduled on to the PMU.
+ */
+static int alpha_check_constraints(struct perf_event **events,
+				   unsigned long *evtypes, int n_ev)
+{
+
+	/* No HW events is possible from hw_perf_group_sched_in(). */
+	if (n_ev == 0)
+		return 0;
+
+	if (n_ev > alpha_pmu->num_pmcs)
+		return -1;
+
+	return alpha_pmu->check_constraints(events, evtypes, n_ev);
+}
+
+
+/*
+ * If new events have been scheduled then update cpuc with the new
+ * configuration.  This may involve shifting cycle counts from one PMC to
+ * another.
+ */
+static void maybe_change_configuration(struct cpu_hw_events *cpuc)
+{
+	int j;
+
+	if (cpuc->n_added == 0)
+		return;
+
+	/* Find counters that are moving to another PMC and update */
+	for (j = 0; j < cpuc->n_events; j++) {
+		struct perf_event *pe = cpuc->event[j];
+
+		if (cpuc->current_idx[j] != PMC_NO_INDEX &&
+			cpuc->current_idx[j] != pe->hw.idx) {
+			alpha_perf_event_update(pe, &pe->hw, cpuc->current_idx[j], 0);
+			cpuc->current_idx[j] = PMC_NO_INDEX;
+		}
+	}
+
+	/* Assign to counters all unassigned events. */
+	cpuc->idx_mask = 0;
+	for (j = 0; j < cpuc->n_events; j++) {
+		struct perf_event *pe = cpuc->event[j];
+		struct hw_perf_event *hwc = &pe->hw;
+		int idx = hwc->idx;
+
+		if (cpuc->current_idx[j] == PMC_NO_INDEX) {
+			alpha_perf_event_set_period(pe, hwc, idx);
+			cpuc->current_idx[j] = idx;
+		}
+
+		if (!(hwc->state & PERF_HES_STOPPED))
+			cpuc->idx_mask |= (1<<cpuc->current_idx[j]);
+	}
+	cpuc->config = cpuc->event[0]->hw.config_base;
+}
+
+
+
+/* Schedule perf HW event on to PMU.
+ *  - this function is called from outside this module via the pmu struct
+ *    returned from perf event initialisation.
+ */
+static int alpha_pmu_add(struct perf_event *event, int flags)
+{
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+	struct hw_perf_event *hwc = &event->hw;
+	int n0;
+	int ret;
+	unsigned long irq_flags;
+
+	/*
+	 * The Sparc code has the IRQ disable first followed by the perf
+	 * disable, however this can lead to an overflowed counter with the
+	 * PMI disabled on rare occasions.  The alpha_perf_event_update()
+	 * routine should detect this situation by noting a negative delta,
+	 * nevertheless we disable the PMCs first to enable a potential
+	 * final PMI to occur before we disable interrupts.
+	 */
+	perf_pmu_disable(event->pmu);
+	local_irq_save(irq_flags);
+
+	/* Default to error to be returned */
+	ret = -EAGAIN;
+
+	/* Insert event on to PMU and if successful modify ret to valid return */
+	n0 = cpuc->n_events;
+	if (n0 < alpha_pmu->num_pmcs) {
+		cpuc->event[n0] = event;
+		cpuc->evtype[n0] = event->hw.event_base;
+		cpuc->current_idx[n0] = PMC_NO_INDEX;
+
+		if (!alpha_check_constraints(cpuc->event, cpuc->evtype, n0+1)) {
+			cpuc->n_events++;
+			cpuc->n_added++;
+			ret = 0;
+		}
+	}
+
+	hwc->state = PERF_HES_UPTODATE;
+	if (!(flags & PERF_EF_START))
+		hwc->state |= PERF_HES_STOPPED;
+
+	local_irq_restore(irq_flags);
+	perf_pmu_enable(event->pmu);
+
+	return ret;
+}
+
+
+
+/* Disable performance monitoring unit
+ *  - this function is called from outside this module via the pmu struct
+ *    returned from perf event initialisation.
+ */
+static void alpha_pmu_del(struct perf_event *event, int flags)
+{
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+	struct hw_perf_event *hwc = &event->hw;
+	unsigned long irq_flags;
+	int j;
+
+	perf_pmu_disable(event->pmu);
+	local_irq_save(irq_flags);
+
+	for (j = 0; j < cpuc->n_events; j++) {
+		if (event == cpuc->event[j]) {
+			int idx = cpuc->current_idx[j];
+
+			/* Shift remaining entries down into the existing
+			 * slot.
+			 */
+			while (++j < cpuc->n_events) {
+				cpuc->event[j - 1] = cpuc->event[j];
+				cpuc->evtype[j - 1] = cpuc->evtype[j];
+				cpuc->current_idx[j - 1] =
+					cpuc->current_idx[j];
+			}
+
+			/* Absorb the final count and turn off the event. */
+			alpha_perf_event_update(event, hwc, idx, 0);
+			perf_event_update_userpage(event);
+
+			cpuc->idx_mask &= ~(1UL<<idx);
+			cpuc->n_events--;
+			break;
+		}
+	}
+
+	local_irq_restore(irq_flags);
+	perf_pmu_enable(event->pmu);
+}
+
+
+static void alpha_pmu_read(struct perf_event *event)
+{
+	struct hw_perf_event *hwc = &event->hw;
+
+	alpha_perf_event_update(event, hwc, hwc->idx, 0);
+}
+
+
+static void alpha_pmu_stop(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	if (!(hwc->state & PERF_HES_STOPPED)) {
+		cpuc->idx_mask &= ~(1UL<<hwc->idx);
+		hwc->state |= PERF_HES_STOPPED;
+	}
+
+	if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+		alpha_perf_event_update(event, hwc, hwc->idx, 0);
+		hwc->state |= PERF_HES_UPTODATE;
+	}
+
+	if (cpuc->enabled)
+		wrperfmon(PERFMON_CMD_DISABLE, (1UL<<hwc->idx));
+}
+
+
+static void alpha_pmu_start(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+		return;
+
+	if (flags & PERF_EF_RELOAD) {
+		WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
+		alpha_perf_event_set_period(event, hwc, hwc->idx);
+	}
+
+	hwc->state = 0;
+
+	cpuc->idx_mask |= 1UL<<hwc->idx;
+	if (cpuc->enabled)
+		wrperfmon(PERFMON_CMD_ENABLE, (1UL<<hwc->idx));
+}
+
+
+/*
+ * Check that CPU performance counters are supported.
+ * - currently support EV67 and later CPUs.
+ * - actually some later revisions of the EV6 have the same PMC model as the
+ *     EV67 but we don't do sufficiently deep CPU detection to detect them.
+ *     Bad luck to the very few people who might have one, I guess.
+ */
+static int supported_cpu(void)
+{
+	struct percpu_struct *cpu;
+	unsigned long cputype;
+
+	/* Get cpu type from HW */
+	cpu = (struct percpu_struct *)((char *)hwrpb + hwrpb->processor_offset);
+	cputype = cpu->type & 0xffffffff;
+	/* Include all of EV67, EV68, EV7, EV79 and EV69 as supported. */
+	return (cputype >= EV67_CPU) && (cputype <= EV69_CPU);
+}
+
+
+
+static void hw_perf_event_destroy(struct perf_event *event)
+{
+	/* Nothing to be done! */
+	return;
+}
+
+
+
+static int __hw_perf_event_init(struct perf_event *event)
+{
+	struct perf_event_attr *attr = &event->attr;
+	struct hw_perf_event *hwc = &event->hw;
+	struct perf_event *evts[MAX_HWEVENTS];
+	unsigned long evtypes[MAX_HWEVENTS];
+	int idx_rubbish_bin[MAX_HWEVENTS];
+	int ev;
+	int n;
+
+	/* We only support a limited range of HARDWARE event types with one
+	 * only programmable via a RAW event type.
+	 */
+	if (attr->type == PERF_TYPE_HARDWARE) {
+		if (attr->config >= alpha_pmu->max_events)
+			return -EINVAL;
+		ev = alpha_pmu->event_map[attr->config];
+	} else if (attr->type == PERF_TYPE_HW_CACHE) {
+		return -EOPNOTSUPP;
+	} else if (attr->type == PERF_TYPE_RAW) {
+		if (!alpha_pmu->raw_event_valid(attr->config))
+			return -EINVAL;
+		ev = attr->config;
+	} else {
+		return -EOPNOTSUPP;
+	}
+
+	if (ev < 0) {
+		return ev;
+	}
+
+	/*
+	 * We place the event type in event_base here and leave calculation
+	 * of the codes to programme the PMU for alpha_pmu_enable() because
+	 * it is only then we will know what HW events are actually
+	 * scheduled on to the PMU.  At that point the code to programme the
+	 * PMU is put into config_base and the PMC to use is placed into
+	 * idx.  We initialise idx (below) to PMC_NO_INDEX to indicate that
+	 * it is yet to be determined.
+	 */
+	hwc->event_base = ev;
+
+	/* Collect events in a group together suitable for calling
+	 * alpha_check_constraints() to verify that the group as a whole can
+	 * be scheduled on to the PMU.
+	 */
+	n = 0;
+	if (event->group_leader != event) {
+		n = collect_events(event->group_leader,
+				alpha_pmu->num_pmcs - 1,
+				evts, evtypes, idx_rubbish_bin);
+		if (n < 0)
+			return -EINVAL;
+	}
+	evtypes[n] = hwc->event_base;
+	evts[n] = event;
+
+	if (alpha_check_constraints(evts, evtypes, n + 1))
+		return -EINVAL;
+
+	/* Indicate that PMU config and idx are yet to be determined. */
+	hwc->config_base = 0;
+	hwc->idx = PMC_NO_INDEX;
+
+	event->destroy = hw_perf_event_destroy;
+
+	/*
+	 * Most architectures reserve the PMU for their use at this point.
+	 * As there is no existing mechanism to arbitrate usage and there
+	 * appears to be no other user of the Alpha PMU we just assume
+	 * that we can just use it, hence a NO-OP here.
+	 *
+	 * Maybe an alpha_reserve_pmu() routine should be implemented but is
+	 * anything else ever going to use it?
+	 */
+
+	if (!hwc->sample_period) {
+		hwc->sample_period = alpha_pmu->pmc_max_period[0];
+		hwc->last_period = hwc->sample_period;
+		local64_set(&hwc->period_left, hwc->sample_period);
+	}
+
+	return 0;
+}
+
+/*
+ * Main entry point to initialise a HW performance event.
+ */
+static int alpha_pmu_event_init(struct perf_event *event)
+{
+	int err;
+
+	/* does not support taken branch sampling */
+	if (has_branch_stack(event))
+		return -EOPNOTSUPP;
+
+	switch (event->attr.type) {
+	case PERF_TYPE_RAW:
+	case PERF_TYPE_HARDWARE:
+	case PERF_TYPE_HW_CACHE:
+		break;
+
+	default:
+		return -ENOENT;
+	}
+
+	if (!alpha_pmu)
+		return -ENODEV;
+
+	/* Do the real initialisation work. */
+	err = __hw_perf_event_init(event);
+
+	return err;
+}
+
+/*
+ * Main entry point - enable HW performance counters.
+ */
+static void alpha_pmu_enable(struct pmu *pmu)
+{
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	if (cpuc->enabled)
+		return;
+
+	cpuc->enabled = 1;
+	barrier();
+
+	if (cpuc->n_events > 0) {
+		/* Update cpuc with information from any new scheduled events. */
+		maybe_change_configuration(cpuc);
+
+		/* Start counting the desired events. */
+		wrperfmon(PERFMON_CMD_LOGGING_OPTIONS, EV67_PCTR_MODE_AGGREGATE);
+		wrperfmon(PERFMON_CMD_DESIRED_EVENTS, cpuc->config);
+		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
+	}
+}
+
+
+/*
+ * Main entry point - disable HW performance counters.
+ */
+
+static void alpha_pmu_disable(struct pmu *pmu)
+{
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	if (!cpuc->enabled)
+		return;
+
+	cpuc->enabled = 0;
+	cpuc->n_added = 0;
+
+	wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask);
+}
+
+static struct pmu pmu = {
+	.pmu_enable	= alpha_pmu_enable,
+	.pmu_disable	= alpha_pmu_disable,
+	.event_init	= alpha_pmu_event_init,
+	.add		= alpha_pmu_add,
+	.del		= alpha_pmu_del,
+	.start		= alpha_pmu_start,
+	.stop		= alpha_pmu_stop,
+	.read		= alpha_pmu_read,
+	.capabilities	= PERF_PMU_CAP_NO_EXCLUDE,
+};
+
+
+/*
+ * Main entry point - don't know when this is called but it
+ * obviously dumps debug info.
+ */
+void perf_event_print_debug(void)
+{
+	unsigned long flags;
+	unsigned long pcr;
+	int pcr0, pcr1;
+	int cpu;
+
+	if (!supported_cpu())
+		return;
+
+	local_irq_save(flags);
+
+	cpu = smp_processor_id();
+
+	pcr = wrperfmon(PERFMON_CMD_READ, 0);
+	pcr0 = (pcr >> alpha_pmu->pmc_count_shift[0]) & alpha_pmu->pmc_count_mask[0];
+	pcr1 = (pcr >> alpha_pmu->pmc_count_shift[1]) & alpha_pmu->pmc_count_mask[1];
+
+	pr_info("CPU#%d: PCTR0[%06x] PCTR1[%06x]\n", cpu, pcr0, pcr1);
+
+	local_irq_restore(flags);
+}
+
+
+/*
+ * Performance Monitoring Interrupt Service Routine called when a PMC
+ * overflows.  The PMC that overflowed is passed in la_ptr.
+ */
+static void alpha_perf_event_irq_handler(unsigned long la_ptr,
+					struct pt_regs *regs)
+{
+	struct cpu_hw_events *cpuc;
+	struct perf_sample_data data;
+	struct perf_event *event;
+	struct hw_perf_event *hwc;
+	int idx, j;
+
+	__this_cpu_inc(irq_pmi_count);
+	cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	/* Completely counting through the PMC's period to trigger a new PMC
+	 * overflow interrupt while in this interrupt routine is utterly
+	 * disastrous!  The EV6 and EV67 counters are sufficiently large to
+	 * prevent this but to be really sure disable the PMCs.
+	 */
+	wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask);
+
+	/* la_ptr is the counter that overflowed. */
+	if (unlikely(la_ptr >= alpha_pmu->num_pmcs)) {
+		/* This should never occur! */
+		irq_err_count++;
+		pr_warn("PMI: silly index %ld\n", la_ptr);
+		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
+		return;
+	}
+
+	idx = la_ptr;
+
+	for (j = 0; j < cpuc->n_events; j++) {
+		if (cpuc->current_idx[j] == idx)
+			break;
+	}
+
+	if (unlikely(j == cpuc->n_events)) {
+		/* This can occur if the event is disabled right on a PMC overflow. */
+		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
+		return;
+	}
+
+	event = cpuc->event[j];
+
+	if (unlikely(!event)) {
+		/* This should never occur! */
+		irq_err_count++;
+		pr_warn("PMI: No event at index %d!\n", idx);
+		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
+		return;
+	}
+
+	hwc = &event->hw;
+	alpha_perf_event_update(event, hwc, idx, alpha_pmu->pmc_max_period[idx]+1);
+	perf_sample_data_init(&data, 0, hwc->last_period);
+
+	if (alpha_perf_event_set_period(event, hwc, idx)) {
+		if (perf_event_overflow(event, &data, regs)) {
+			/* Interrupts coming too quickly; "throttle" the
+			 * counter, i.e., disable it for a little while.
+			 */
+			alpha_pmu_stop(event, 0);
+		}
+	}
+	wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
+
+	return;
+}
+
+
+
+/*
+ * Init call to initialise performance events at kernel startup.
+ */
+int __init init_hw_perf_events(void)
+{
+	pr_info("Performance events: ");
+
+	if (!supported_cpu()) {
+		pr_cont("No support for your CPU.\n");
+		return 0;
+	}
+
+	pr_cont("Supported CPU type!\n");
+
+	/* Override performance counter IRQ vector */
+
+	perf_irq = alpha_perf_event_irq_handler;
+
+	/* And set up PMU specification */
+	alpha_pmu = &ev67_pmu;
+
+	perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
+
+	return 0;
+}
+early_initcall(init_hw_perf_events);
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
new file mode 100644
index 000000000..dbf1bc5e2
--- /dev/null
+++ b/arch/alpha/kernel/process.c
@@ -0,0 +1,396 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/process.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling.
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/time.h>
+#include <linux/major.h>
+#include <linux/stat.h>
+#include <linux/vt.h>
+#include <linux/mman.h>
+#include <linux/elfcore.h>
+#include <linux/reboot.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/slab.h>
+#include <linux/rcupdate.h>
+
+#include <asm/reg.h>
+#include <linux/uaccess.h>
+#include <asm/io.h>
+#include <asm/hwrpb.h>
+#include <asm/fpu.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+/*
+ * Power off function, if any
+ */
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+#ifdef CONFIG_ALPHA_WTINT
+/*
+ * Sleep the CPU.
+ * EV6, LCA45 and QEMU know how to power down, skipping N timer interrupts.
+ */
+void arch_cpu_idle(void)
+{
+	wtint(0);
+	raw_local_irq_enable();
+}
+
+void arch_cpu_idle_dead(void)
+{
+	wtint(INT_MAX);
+}
+#endif /* ALPHA_WTINT */
+
+struct halt_info {
+	int mode;
+	char *restart_cmd;
+};
+
+static void
+common_shutdown_1(void *generic_ptr)
+{
+	struct halt_info *how = (struct halt_info *)generic_ptr;
+	struct percpu_struct *cpup;
+	unsigned long *pflags, flags;
+	int cpuid = smp_processor_id();
+
+	/* No point in taking interrupts anymore. */
+	local_irq_disable();
+
+	cpup = (struct percpu_struct *)
+			((unsigned long)hwrpb + hwrpb->processor_offset
+			 + hwrpb->processor_size * cpuid);
+	pflags = &cpup->flags;
+	flags = *pflags;
+
+	/* Clear reason to "default"; clear "bootstrap in progress". */
+	flags &= ~0x00ff0001UL;
+
+#ifdef CONFIG_SMP
+	/* Secondaries halt here. */
+	if (cpuid != boot_cpuid) {
+		flags |= 0x00040000UL; /* "remain halted" */
+		*pflags = flags;
+		set_cpu_present(cpuid, false);
+		set_cpu_possible(cpuid, false);
+		halt();
+	}
+#endif
+
+	if (how->mode == LINUX_REBOOT_CMD_RESTART) {
+		if (!how->restart_cmd) {
+			flags |= 0x00020000UL; /* "cold bootstrap" */
+		} else {
+			/* For SRM, we could probably set environment
+			   variables to get this to work.  We'd have to
+			   delay this until after srm_paging_stop unless
+			   we ever got srm_fixup working.
+
+			   At the moment, SRM will use the last boot device,
+			   but the file and flags will be the defaults, when
+			   doing a "warm" bootstrap.  */
+			flags |= 0x00030000UL; /* "warm bootstrap" */
+		}
+	} else {
+		flags |= 0x00040000UL; /* "remain halted" */
+	}
+	*pflags = flags;
+
+#ifdef CONFIG_SMP
+	/* Wait for the secondaries to halt. */
+	set_cpu_present(boot_cpuid, false);
+	set_cpu_possible(boot_cpuid, false);
+	while (!cpumask_empty(cpu_present_mask))
+		barrier();
+#endif
+
+	/* If booted from SRM, reset some of the original environment. */
+	if (alpha_using_srm) {
+#ifdef CONFIG_DUMMY_CONSOLE
+		/* If we've gotten here after SysRq-b, leave interrupt
+		   context before taking over the console. */
+		if (in_irq())
+			irq_exit();
+		/* This has the effect of resetting the VGA video origin.  */
+		console_lock();
+		do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES-1, 1);
+		console_unlock();
+#endif
+		pci_restore_srm_config();
+		set_hae(srm_hae);
+	}
+
+	if (alpha_mv.kill_arch)
+		alpha_mv.kill_arch(how->mode);
+
+	if (! alpha_using_srm && how->mode != LINUX_REBOOT_CMD_RESTART) {
+		/* Unfortunately, since MILO doesn't currently understand
+		   the hwrpb bits above, we can't reliably halt the 
+		   processor and keep it halted.  So just loop.  */
+		return;
+	}
+
+	if (alpha_using_srm)
+		srm_paging_stop();
+
+	halt();
+}
+
+static void
+common_shutdown(int mode, char *restart_cmd)
+{
+	struct halt_info args;
+	args.mode = mode;
+	args.restart_cmd = restart_cmd;
+	on_each_cpu(common_shutdown_1, &args, 0);
+}
+
+void
+machine_restart(char *restart_cmd)
+{
+	common_shutdown(LINUX_REBOOT_CMD_RESTART, restart_cmd);
+}
+
+
+void
+machine_halt(void)
+{
+	common_shutdown(LINUX_REBOOT_CMD_HALT, NULL);
+}
+
+
+void
+machine_power_off(void)
+{
+	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
+}
+
+
+/* Used by sysrq-p, among others.  I don't believe r9-r15 are ever
+   saved in the context it's used.  */
+
+void
+show_regs(struct pt_regs *regs)
+{
+	show_regs_print_info(KERN_DEFAULT);
+	dik_show_regs(regs, NULL);
+}
+
+/*
+ * Re-start a thread when doing execve()
+ */
+void
+start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
+{
+	regs->pc = pc;
+	regs->ps = 8;
+	wrusp(sp);
+}
+EXPORT_SYMBOL(start_thread);
+
+void
+flush_thread(void)
+{
+	/* Arrange for each exec'ed process to start off with a clean slate
+	   with respect to the FPU.  This is all exceptions disabled.  */
+	current_thread_info()->ieee_state = 0;
+	wrfpcr(FPCR_DYN_NORMAL | ieee_swcr_to_fpcr(0));
+
+	/* Clean slate for TLS.  */
+	current_thread_info()->pcb.unique = 0;
+}
+
+/*
+ * Copy architecture-specific thread state
+ */
+int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
+{
+	unsigned long clone_flags = args->flags;
+	unsigned long usp = args->stack;
+	unsigned long tls = args->tls;
+	extern void ret_from_fork(void);
+	extern void ret_from_kernel_thread(void);
+
+	struct thread_info *childti = task_thread_info(p);
+	struct pt_regs *childregs = task_pt_regs(p);
+	struct pt_regs *regs = current_pt_regs();
+	struct switch_stack *childstack, *stack;
+
+	childstack = ((struct switch_stack *) childregs) - 1;
+	childti->pcb.ksp = (unsigned long) childstack;
+	childti->pcb.flags = 1;	/* set FEN, clear everything else */
+
+	if (unlikely(args->fn)) {
+		/* kernel thread */
+		memset(childstack, 0,
+			sizeof(struct switch_stack) + sizeof(struct pt_regs));
+		childstack->r26 = (unsigned long) ret_from_kernel_thread;
+		childstack->r9 = (unsigned long) args->fn;
+		childstack->r10 = (unsigned long) args->fn_arg;
+		childregs->hae = alpha_mv.hae_cache;
+		childti->pcb.usp = 0;
+		return 0;
+	}
+	/* Note: if CLONE_SETTLS is not set, then we must inherit the
+	   value from the parent, which will have been set by the block
+	   copy in dup_task_struct.  This is non-intuitive, but is
+	   required for proper operation in the case of a threaded
+	   application calling fork.  */
+	if (clone_flags & CLONE_SETTLS)
+		childti->pcb.unique = tls;
+	else
+		regs->r20 = 0;	/* OSF/1 has some strange fork() semantics.  */
+	childti->pcb.usp = usp ?: rdusp();
+	*childregs = *regs;
+	childregs->r0 = 0;
+	childregs->r19 = 0;
+	childregs->r20 = 1;	/* OSF/1 has some strange fork() semantics.  */
+	stack = ((struct switch_stack *) regs) - 1;
+	*childstack = *stack;
+	childstack->r26 = (unsigned long) ret_from_fork;
+	return 0;
+}
+
+/*
+ * Fill in the user structure for a ELF core dump.
+ */
+void
+dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
+{
+	/* switch stack follows right below pt_regs: */
+	struct switch_stack * sw = ((struct switch_stack *) pt) - 1;
+
+	dest[ 0] = pt->r0;
+	dest[ 1] = pt->r1;
+	dest[ 2] = pt->r2;
+	dest[ 3] = pt->r3;
+	dest[ 4] = pt->r4;
+	dest[ 5] = pt->r5;
+	dest[ 6] = pt->r6;
+	dest[ 7] = pt->r7;
+	dest[ 8] = pt->r8;
+	dest[ 9] = sw->r9;
+	dest[10] = sw->r10;
+	dest[11] = sw->r11;
+	dest[12] = sw->r12;
+	dest[13] = sw->r13;
+	dest[14] = sw->r14;
+	dest[15] = sw->r15;
+	dest[16] = pt->r16;
+	dest[17] = pt->r17;
+	dest[18] = pt->r18;
+	dest[19] = pt->r19;
+	dest[20] = pt->r20;
+	dest[21] = pt->r21;
+	dest[22] = pt->r22;
+	dest[23] = pt->r23;
+	dest[24] = pt->r24;
+	dest[25] = pt->r25;
+	dest[26] = pt->r26;
+	dest[27] = pt->r27;
+	dest[28] = pt->r28;
+	dest[29] = pt->gp;
+	dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
+	dest[31] = pt->pc;
+
+	/* Once upon a time this was the PS value.  Which is stupid
+	   since that is always 8 for usermode.  Usurped for the more
+	   useful value of the thread's UNIQUE field.  */
+	dest[32] = ti->pcb.unique;
+}
+EXPORT_SYMBOL(dump_elf_thread);
+
+int
+dump_elf_task(elf_greg_t *dest, struct task_struct *task)
+{
+	dump_elf_thread(dest, task_pt_regs(task), task_thread_info(task));
+	return 1;
+}
+EXPORT_SYMBOL(dump_elf_task);
+
+int
+dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
+{
+	struct switch_stack *sw = (struct switch_stack *)task_pt_regs(task) - 1;
+	memcpy(dest, sw->fp, 32 * 8);
+	return 1;
+}
+EXPORT_SYMBOL(dump_elf_task_fp);
+
+/*
+ * Return saved PC of a blocked thread.  This assumes the frame
+ * pointer is the 6th saved long on the kernel stack and that the
+ * saved return address is the first long in the frame.  This all
+ * holds provided the thread blocked through a call to schedule() ($15
+ * is the frame pointer in schedule() and $15 is saved at offset 48 by
+ * entry.S:do_switch_stack).
+ *
+ * Under heavy swap load I've seen this lose in an ugly way.  So do
+ * some extra sanity checking on the ranges we expect these pointers
+ * to be in so that we can fail gracefully.  This is just for ps after
+ * all.  -- r~
+ */
+
+static unsigned long
+thread_saved_pc(struct task_struct *t)
+{
+	unsigned long base = (unsigned long)task_stack_page(t);
+	unsigned long fp, sp = task_thread_info(t)->pcb.ksp;
+
+	if (sp > base && sp+6*8 < base + 16*1024) {
+		fp = ((unsigned long*)sp)[6];
+		if (fp > sp && fp < base + 16*1024)
+			return *(unsigned long *)fp;
+	}
+
+	return 0;
+}
+
+unsigned long
+__get_wchan(struct task_struct *p)
+{
+	unsigned long schedule_frame;
+	unsigned long pc;
+
+	/*
+	 * This one depends on the frame size of schedule().  Do a
+	 * "disass schedule" in gdb to find the frame size.  Also, the
+	 * code assumes that sleep_on() follows immediately after
+	 * interruptible_sleep_on() and that add_timer() follows
+	 * immediately after interruptible_sleep().  Ugly, isn't it?
+	 * Maybe adding a wchan field to task_struct would be better,
+	 * after all...
+	 */
+
+	pc = thread_saved_pc(p);
+	if (in_sched_functions(pc)) {
+		schedule_frame = ((unsigned long *)task_thread_info(p)->pcb.ksp)[6];
+		return ((unsigned long *)schedule_frame)[12];
+	}
+	return pc;
+}
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
new file mode 100644
index 000000000..5816a31c1
--- /dev/null
+++ b/arch/alpha/kernel/proto.h
@@ -0,0 +1,213 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+/* Prototypes of functions used across modules here in this directory.  */
+
+#define vucp	volatile unsigned char  *
+#define vusp	volatile unsigned short *
+#define vip	volatile int *
+#define vuip	volatile unsigned int   *
+#define vulp	volatile unsigned long  *
+
+struct pt_regs;
+struct task_struct;
+struct pci_dev;
+struct pci_controller;
+
+/* core_apecs.c */
+extern struct pci_ops apecs_pci_ops;
+extern void apecs_init_arch(void);
+extern void apecs_pci_clr_err(void);
+extern void apecs_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void apecs_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_cia.c */
+extern struct pci_ops cia_pci_ops;
+extern void cia_init_pci(void);
+extern void cia_init_arch(void);
+extern void pyxis_init_arch(void);
+extern void cia_kill_arch(int);
+extern void cia_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_irongate.c */
+extern struct pci_ops irongate_pci_ops;
+extern int irongate_pci_clr_err(void);
+extern void irongate_init_arch(void);
+#define irongate_pci_tbi ((void *)0)
+
+/* core_lca.c */
+extern struct pci_ops lca_pci_ops;
+extern void lca_init_arch(void);
+extern void lca_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void lca_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_marvel.c */
+extern struct pci_ops marvel_pci_ops;
+extern void marvel_init_arch(void);
+extern void marvel_kill_arch(int);
+extern void marvel_machine_check(unsigned long, unsigned long);
+extern void marvel_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+extern struct _alpha_agp_info *marvel_agp_info(void);
+struct io7 *marvel_find_io7(int pe);
+struct io7 *marvel_next_io7(struct io7 *prev);
+void io7_clear_errors(struct io7 *io7);
+
+/* core_mcpcia.c */
+extern struct pci_ops mcpcia_pci_ops;
+extern void mcpcia_init_arch(void);
+extern void mcpcia_init_hoses(void);
+extern void mcpcia_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void mcpcia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_polaris.c */
+extern struct pci_ops polaris_pci_ops;
+extern int polaris_read_config_dword(struct pci_dev *, int, u32 *);
+extern int polaris_write_config_dword(struct pci_dev *, int, u32);
+extern void polaris_init_arch(void);
+extern void polaris_machine_check(unsigned long vector, unsigned long la_ptr);
+#define polaris_pci_tbi ((void *)0)
+
+/* core_t2.c */
+extern struct pci_ops t2_pci_ops;
+extern void t2_init_arch(void);
+extern void t2_kill_arch(int);
+extern void t2_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void t2_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_titan.c */
+extern struct pci_ops titan_pci_ops;
+extern void titan_init_arch(void);
+extern void titan_kill_arch(int);
+extern void titan_machine_check(unsigned long, unsigned long);
+extern void titan_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+extern struct _alpha_agp_info *titan_agp_info(void);
+
+/* core_tsunami.c */
+extern struct pci_ops tsunami_pci_ops;
+extern void tsunami_init_arch(void);
+extern void tsunami_kill_arch(int);
+extern void tsunami_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void tsunami_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* core_wildfire.c */
+extern struct pci_ops wildfire_pci_ops;
+extern void wildfire_init_arch(void);
+extern void wildfire_kill_arch(int);
+extern void wildfire_machine_check(unsigned long vector, unsigned long la_ptr);
+extern void wildfire_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t);
+
+/* console.c */
+#ifdef CONFIG_VGA_HOSE
+extern void find_console_vga_hose(void);
+extern void locate_and_init_vga(void *(*)(void *, void *));
+#else
+static inline void find_console_vga_hose(void) { }
+static inline void locate_and_init_vga(void *(*sel_func)(void *, void *)) { }
+#endif
+
+/* setup.c */
+extern unsigned long srm_hae;
+extern int boot_cpuid;
+#ifdef CONFIG_VERBOSE_MCHECK
+extern unsigned long alpha_verbose_mcheck;
+#endif
+
+/* srmcons.c */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
+extern void register_srm_console(void);
+extern void unregister_srm_console(void);
+#else
+#define register_srm_console()
+#define unregister_srm_console()
+#endif
+
+/* smp.c */
+extern void setup_smp(void);
+extern void handle_ipi(struct pt_regs *);
+
+/* bios32.c */
+/* extern void reset_for_srm(void); */
+
+/* time.c */
+extern irqreturn_t rtc_timer_interrupt(int irq, void *dev);
+extern void init_clockevent(void);
+extern void common_init_rtc(void);
+extern unsigned long est_cycle_freq;
+
+/* smc37c93x.c */
+extern void SMC93x_Init(void);
+
+/* smc37c669.c */
+extern void SMC669_Init(int);
+
+/* es1888.c */
+extern void es1888_init(void);
+
+/* ../lib/fpreg.c */
+extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
+extern unsigned long alpha_read_fp_reg (unsigned long reg);
+
+/* head.S */
+extern void wrmces(unsigned long mces);
+extern void cserve_ena(unsigned long);
+extern void cserve_dis(unsigned long);
+extern void __smp_callin(unsigned long);
+
+/* entry.S */
+extern void entArith(void);
+extern void entIF(void);
+extern void entInt(void);
+extern void entMM(void);
+extern void entSys(void);
+extern void entUna(void);
+extern void entDbg(void);
+
+/* ptrace.c */
+extern int ptrace_set_bpt (struct task_struct *child);
+extern int ptrace_cancel_bpt (struct task_struct *child);
+
+/* traps.c */
+extern void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15);
+extern void die_if_kernel(char *, struct pt_regs *, long, unsigned long *);
+
+/* sys_titan.c */
+extern void titan_dispatch_irqs(u64);
+
+/* ../mm/init.c */
+extern void switch_to_system_map(void);
+extern void srm_paging_stop(void);
+
+static inline int
+__alpha_remap_area_pages(unsigned long address, unsigned long phys_addr,
+			 unsigned long size, unsigned long flags)
+{
+	pgprot_t prot;
+
+	prot = __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE
+			| _PAGE_KWE | flags);
+	return ioremap_page_range(address, address + size, phys_addr, prot);
+}
+
+/* irq.c */
+
+#ifdef CONFIG_SMP
+#define mcheck_expected(cpu)	(cpu_data[cpu].mcheck_expected)
+#define mcheck_taken(cpu)	(cpu_data[cpu].mcheck_taken)
+#define mcheck_extra(cpu)	(cpu_data[cpu].mcheck_extra)
+#else
+extern struct mcheck_info
+{
+	unsigned char expected __attribute__((aligned(8)));
+	unsigned char taken;
+	unsigned char extra;
+} __mcheck_info;
+
+#define mcheck_expected(cpu)	(*((void)(cpu), &__mcheck_info.expected))
+#define mcheck_taken(cpu)	(*((void)(cpu), &__mcheck_info.taken))
+#define mcheck_extra(cpu)	(*((void)(cpu), &__mcheck_info.extra))
+#endif
+
+extern void process_mcheck_info(unsigned long vector, unsigned long la_ptr,
+				const char *machine, int expected);
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
new file mode 100644
index 000000000..a1a239ea0
--- /dev/null
+++ b/arch/alpha/kernel/ptrace.c
@@ -0,0 +1,337 @@
+// SPDX-License-Identifier: GPL-2.0
+/* ptrace.c */
+/* By Ross Biro 1/23/92 */
+/* edited by Linus Torvalds */
+/* mangled further by Bob Manson (manson@santafe.edu) */
+/* more mutilation by David Mosberger (davidm@azstarnet.com) */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/security.h>
+#include <linux/signal.h>
+#include <linux/audit.h>
+
+#include <linux/uaccess.h>
+#include <asm/fpu.h>
+
+#include "proto.h"
+
+#define DEBUG	DBG_MEM
+#undef DEBUG
+
+#ifdef DEBUG
+enum {
+	DBG_MEM		= (1<<0),
+	DBG_BPT		= (1<<1),
+	DBG_MEM_ALL	= (1<<2)
+};
+#define DBG(fac,args)	{if ((fac) & DEBUG) printk args;}
+#else
+#define DBG(fac,args)
+#endif
+
+#define BREAKINST	0x00000080	/* call_pal bpt */
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/*
+ * Processes always block with the following stack-layout:
+ *
+ *  +================================+ <---- task + 2*PAGE_SIZE
+ *  | PALcode saved frame (ps, pc,   | ^
+ *  | gp, a0, a1, a2)		     | |
+ *  +================================+ | struct pt_regs
+ *  |	        		     | |
+ *  | frame generated by SAVE_ALL    | |
+ *  |	        		     | v
+ *  +================================+
+ *  |	        		     | ^
+ *  | frame saved by do_switch_stack | | struct switch_stack
+ *  |	        		     | v
+ *  +================================+
+ */
+
+/* 
+ * The following table maps a register index into the stack offset at
+ * which the register is saved.  Register indices are 0-31 for integer
+ * regs, 32-63 for fp regs, and 64 for the pc.  Notice that sp and
+ * zero have no stack-slot and need to be treated specially (see
+ * get_reg/put_reg below).
+ */
+enum {
+	REG_R0 = 0, REG_F0 = 32, REG_FPCR = 63, REG_PC = 64
+};
+
+#define PT_REG(reg) \
+  (PAGE_SIZE*2 - sizeof(struct pt_regs) + offsetof(struct pt_regs, reg))
+
+#define SW_REG(reg) \
+ (PAGE_SIZE*2 - sizeof(struct pt_regs) - sizeof(struct switch_stack) \
+  + offsetof(struct switch_stack, reg))
+
+static int regoff[] = {
+	PT_REG(	   r0), PT_REG(	   r1), PT_REG(	   r2), PT_REG(	  r3),
+	PT_REG(	   r4), PT_REG(	   r5), PT_REG(	   r6), PT_REG(	  r7),
+	PT_REG(	   r8), SW_REG(	   r9), SW_REG(	  r10), SW_REG(	 r11),
+	SW_REG(	  r12), SW_REG(	  r13), SW_REG(	  r14), SW_REG(	 r15),
+	PT_REG(	  r16), PT_REG(	  r17), PT_REG(	  r18), PT_REG(	 r19),
+	PT_REG(	  r20), PT_REG(	  r21), PT_REG(	  r22), PT_REG(	 r23),
+	PT_REG(	  r24), PT_REG(	  r25), PT_REG(	  r26), PT_REG(	 r27),
+	PT_REG(	  r28), PT_REG(	   gp),		   -1,		   -1,
+	SW_REG(fp[ 0]), SW_REG(fp[ 1]), SW_REG(fp[ 2]), SW_REG(fp[ 3]),
+	SW_REG(fp[ 4]), SW_REG(fp[ 5]), SW_REG(fp[ 6]), SW_REG(fp[ 7]),
+	SW_REG(fp[ 8]), SW_REG(fp[ 9]), SW_REG(fp[10]), SW_REG(fp[11]),
+	SW_REG(fp[12]), SW_REG(fp[13]), SW_REG(fp[14]), SW_REG(fp[15]),
+	SW_REG(fp[16]), SW_REG(fp[17]), SW_REG(fp[18]), SW_REG(fp[19]),
+	SW_REG(fp[20]), SW_REG(fp[21]), SW_REG(fp[22]), SW_REG(fp[23]),
+	SW_REG(fp[24]), SW_REG(fp[25]), SW_REG(fp[26]), SW_REG(fp[27]),
+	SW_REG(fp[28]), SW_REG(fp[29]), SW_REG(fp[30]), SW_REG(fp[31]),
+	PT_REG(	   pc)
+};
+
+static unsigned long zero;
+
+/*
+ * Get address of register REGNO in task TASK.
+ */
+static unsigned long *
+get_reg_addr(struct task_struct * task, unsigned long regno)
+{
+	unsigned long *addr;
+
+	if (regno == 30) {
+		addr = &task_thread_info(task)->pcb.usp;
+	} else if (regno == 65) {
+		addr = &task_thread_info(task)->pcb.unique;
+	} else if (regno == 31 || regno > 65) {
+		zero = 0;
+		addr = &zero;
+	} else {
+		addr = task_stack_page(task) + regoff[regno];
+	}
+	return addr;
+}
+
+/*
+ * Get contents of register REGNO in task TASK.
+ */
+static unsigned long
+get_reg(struct task_struct * task, unsigned long regno)
+{
+	/* Special hack for fpcr -- combine hardware and software bits.  */
+	if (regno == 63) {
+		unsigned long fpcr = *get_reg_addr(task, regno);
+		unsigned long swcr
+		  = task_thread_info(task)->ieee_state & IEEE_SW_MASK;
+		swcr = swcr_update_status(swcr, fpcr);
+		return fpcr | swcr;
+	}
+	return *get_reg_addr(task, regno);
+}
+
+/*
+ * Write contents of register REGNO in task TASK.
+ */
+static int
+put_reg(struct task_struct *task, unsigned long regno, unsigned long data)
+{
+	if (regno == 63) {
+		task_thread_info(task)->ieee_state
+		  = ((task_thread_info(task)->ieee_state & ~IEEE_SW_MASK)
+		     | (data & IEEE_SW_MASK));
+		data = (data & FPCR_DYN_MASK) | ieee_swcr_to_fpcr(data);
+	}
+	*get_reg_addr(task, regno) = data;
+	return 0;
+}
+
+static inline int
+read_int(struct task_struct *task, unsigned long addr, int * data)
+{
+	int copied = access_process_vm(task, addr, data, sizeof(int),
+			FOLL_FORCE);
+	return (copied == sizeof(int)) ? 0 : -EIO;
+}
+
+static inline int
+write_int(struct task_struct *task, unsigned long addr, int data)
+{
+	int copied = access_process_vm(task, addr, &data, sizeof(int),
+			FOLL_FORCE | FOLL_WRITE);
+	return (copied == sizeof(int)) ? 0 : -EIO;
+}
+
+/*
+ * Set breakpoint.
+ */
+int
+ptrace_set_bpt(struct task_struct * child)
+{
+	int displ, i, res, reg_b, nsaved = 0;
+	unsigned int insn, op_code;
+	unsigned long pc;
+
+	pc  = get_reg(child, REG_PC);
+	res = read_int(child, pc, (int *) &insn);
+	if (res < 0)
+		return res;
+
+	op_code = insn >> 26;
+	if (op_code >= 0x30) {
+		/*
+		 * It's a branch: instead of trying to figure out
+		 * whether the branch will be taken or not, we'll put
+		 * a breakpoint at either location.  This is simpler,
+		 * more reliable, and probably not a whole lot slower
+		 * than the alternative approach of emulating the
+		 * branch (emulation can be tricky for fp branches).
+		 */
+		displ = ((s32)(insn << 11)) >> 9;
+		task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;
+		if (displ)		/* guard against unoptimized code */
+			task_thread_info(child)->bpt_addr[nsaved++]
+			  = pc + 4 + displ;
+		DBG(DBG_BPT, ("execing branch\n"));
+	} else if (op_code == 0x1a) {
+		reg_b = (insn >> 16) & 0x1f;
+		task_thread_info(child)->bpt_addr[nsaved++] = get_reg(child, reg_b);
+		DBG(DBG_BPT, ("execing jump\n"));
+	} else {
+		task_thread_info(child)->bpt_addr[nsaved++] = pc + 4;
+		DBG(DBG_BPT, ("execing normal insn\n"));
+	}
+
+	/* install breakpoints: */
+	for (i = 0; i < nsaved; ++i) {
+		res = read_int(child, task_thread_info(child)->bpt_addr[i],
+			       (int *) &insn);
+		if (res < 0)
+			return res;
+		task_thread_info(child)->bpt_insn[i] = insn;
+		DBG(DBG_BPT, ("    -> next_pc=%lx\n",
+			      task_thread_info(child)->bpt_addr[i]));
+		res = write_int(child, task_thread_info(child)->bpt_addr[i],
+				BREAKINST);
+		if (res < 0)
+			return res;
+	}
+	task_thread_info(child)->bpt_nsaved = nsaved;
+	return 0;
+}
+
+/*
+ * Ensure no single-step breakpoint is pending.  Returns non-zero
+ * value if child was being single-stepped.
+ */
+int
+ptrace_cancel_bpt(struct task_struct * child)
+{
+	int i, nsaved = task_thread_info(child)->bpt_nsaved;
+
+	task_thread_info(child)->bpt_nsaved = 0;
+
+	if (nsaved > 2) {
+		printk("ptrace_cancel_bpt: bogus nsaved: %d!\n", nsaved);
+		nsaved = 2;
+	}
+
+	for (i = 0; i < nsaved; ++i) {
+		write_int(child, task_thread_info(child)->bpt_addr[i],
+			  task_thread_info(child)->bpt_insn[i]);
+	}
+	return (nsaved != 0);
+}
+
+void user_enable_single_step(struct task_struct *child)
+{
+	/* Mark single stepping.  */
+	task_thread_info(child)->bpt_nsaved = -1;
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+	ptrace_cancel_bpt(child);
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure the single step bit is not set.
+ */
+void ptrace_disable(struct task_struct *child)
+{ 
+	user_disable_single_step(child);
+}
+
+long arch_ptrace(struct task_struct *child, long request,
+		 unsigned long addr, unsigned long data)
+{
+	unsigned long tmp;
+	size_t copied;
+	long ret;
+
+	switch (request) {
+	/* When I and D space are separate, these will need to be fixed.  */
+	case PTRACE_PEEKTEXT: /* read word at location addr. */
+	case PTRACE_PEEKDATA:
+		copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp),
+				FOLL_FORCE);
+		ret = -EIO;
+		if (copied != sizeof(tmp))
+			break;
+		
+		force_successful_syscall_return();
+		ret = tmp;
+		break;
+
+	/* Read register number ADDR. */
+	case PTRACE_PEEKUSR:
+		force_successful_syscall_return();
+		ret = get_reg(child, addr);
+		DBG(DBG_MEM, ("peek $%lu->%#lx\n", addr, ret));
+		break;
+
+	/* When I and D space are separate, this will have to be fixed.  */
+	case PTRACE_POKETEXT: /* write the word at location addr. */
+	case PTRACE_POKEDATA:
+		ret = generic_ptrace_pokedata(child, addr, data);
+		break;
+
+	case PTRACE_POKEUSR: /* write the specified register */
+		DBG(DBG_MEM, ("poke $%lu<-%#lx\n", addr, data));
+		ret = put_reg(child, addr, data);
+		break;
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+	return ret;
+}
+
+asmlinkage unsigned long syscall_trace_enter(void)
+{
+	unsigned long ret = 0;
+	struct pt_regs *regs = current_pt_regs();
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    ptrace_report_syscall_entry(current_pt_regs()))
+		ret = -1UL;
+	audit_syscall_entry(regs->r0, regs->r16, regs->r17, regs->r18, regs->r19);
+	return ret ?: current_pt_regs()->r0;
+}
+
+asmlinkage void
+syscall_trace_leave(void)
+{
+	audit_syscall_exit(current_pt_regs());
+	if (test_thread_flag(TIF_SYSCALL_TRACE))
+		ptrace_report_syscall_exit(current_pt_regs(), 0);
+}
diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
new file mode 100644
index 000000000..cfdf90bc8
--- /dev/null
+++ b/arch/alpha/kernel/rtc.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/rtc.c
+ *
+ *  Copyright (C) 1991, 1992, 1995, 1999, 2000  Linus Torvalds
+ *
+ * This file contains date handling.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mc146818rtc.h>
+#include <linux/bcd.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+
+#include "proto.h"
+
+
+/*
+ * Support for the RTC device.
+ *
+ * We don't want to use the rtc-cmos driver, because we don't want to support
+ * alarms, as that would be indistinguishable from timer interrupts.
+ *
+ * Further, generic code is really, really tied to a 1900 epoch.  This is
+ * true in __get_rtc_time as well as the users of struct rtc_time e.g.
+ * rtc_tm_to_time.  Thankfully all of the other epochs in use are later
+ * than 1900, and so it's easy to adjust.
+ */
+
+static unsigned long rtc_epoch;
+
+static int __init
+specifiy_epoch(char *str)
+{
+	unsigned long epoch = simple_strtoul(str, NULL, 0);
+	if (epoch < 1900)
+		printk("Ignoring invalid user specified epoch %lu\n", epoch);
+	else
+		rtc_epoch = epoch;
+	return 1;
+}
+__setup("epoch=", specifiy_epoch);
+
+static void __init
+init_rtc_epoch(void)
+{
+	int epoch, year, ctrl;
+
+	if (rtc_epoch != 0) {
+		/* The epoch was specified on the command-line.  */
+		return;
+	}
+
+	/* Detect the epoch in use on this computer.  */
+	ctrl = CMOS_READ(RTC_CONTROL);
+	year = CMOS_READ(RTC_YEAR);
+	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+		year = bcd2bin(year);
+
+	/* PC-like is standard; used for year >= 70 */
+	epoch = 1900;
+	if (year < 20) {
+		epoch = 2000;
+	} else if (year >= 20 && year < 48) {
+		/* NT epoch */
+		epoch = 1980;
+	} else if (year >= 48 && year < 70) {
+		/* Digital UNIX epoch */
+		epoch = 1952;
+	}
+	rtc_epoch = epoch;
+
+	printk(KERN_INFO "Using epoch %d for rtc year %d\n", epoch, year);
+}
+
+static int
+alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	int ret = mc146818_get_time(tm, 10);
+
+	if (ret < 0) {
+		dev_err_ratelimited(dev, "unable to read current time\n");
+		return ret;
+	}
+
+	/* Adjust for non-default epochs.  It's easier to depend on the
+	   generic __get_rtc_time and adjust the epoch here than create
+	   a copy of __get_rtc_time with the edits we need.  */
+	if (rtc_epoch != 1900) {
+		int year = tm->tm_year;
+		/* Undo the century adjustment made in __get_rtc_time.  */
+		if (year >= 100)
+			year -= 100;
+		year += rtc_epoch - 1900;
+		/* Redo the century adjustment with the epoch in place.  */
+		if (year <= 69)
+			year += 100;
+		tm->tm_year = year;
+	}
+
+	return 0;
+}
+
+static int
+alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct rtc_time xtm;
+
+	if (rtc_epoch != 1900) {
+		xtm = *tm;
+		xtm.tm_year -= rtc_epoch - 1900;
+		tm = &xtm;
+	}
+
+	return mc146818_set_time(tm);
+}
+
+static int
+alpha_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
+	case RTC_EPOCH_READ:
+		return put_user(rtc_epoch, (unsigned long __user *)arg);
+	case RTC_EPOCH_SET:
+		if (arg < 1900)
+			return -EINVAL;
+		rtc_epoch = arg;
+		return 0;
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+
+static const struct rtc_class_ops alpha_rtc_ops = {
+	.read_time = alpha_rtc_read_time,
+	.set_time = alpha_rtc_set_time,
+	.ioctl = alpha_rtc_ioctl,
+};
+
+/*
+ * Similarly, except do the actual CMOS access on the boot cpu only.
+ * This requires marshalling the data across an interprocessor call.
+ */
+
+#if defined(CONFIG_SMP) && \
+    (defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_MARVEL))
+# define HAVE_REMOTE_RTC 1
+
+union remote_data {
+	struct rtc_time *tm;
+	long retval;
+};
+
+static void
+do_remote_read(void *data)
+{
+	union remote_data *x = data;
+	x->retval = alpha_rtc_read_time(NULL, x->tm);
+}
+
+static int
+remote_read_time(struct device *dev, struct rtc_time *tm)
+{
+	union remote_data x;
+	if (smp_processor_id() != boot_cpuid) {
+		x.tm = tm;
+		smp_call_function_single(boot_cpuid, do_remote_read, &x, 1);
+		return x.retval;
+	}
+	return alpha_rtc_read_time(NULL, tm);
+}
+
+static void
+do_remote_set(void *data)
+{
+	union remote_data *x = data;
+	x->retval = alpha_rtc_set_time(NULL, x->tm);
+}
+
+static int
+remote_set_time(struct device *dev, struct rtc_time *tm)
+{
+	union remote_data x;
+	if (smp_processor_id() != boot_cpuid) {
+		x.tm = tm;
+		smp_call_function_single(boot_cpuid, do_remote_set, &x, 1);
+		return x.retval;
+	}
+	return alpha_rtc_set_time(NULL, tm);
+}
+
+static const struct rtc_class_ops remote_rtc_ops = {
+	.read_time = remote_read_time,
+	.set_time = remote_set_time,
+	.ioctl = alpha_rtc_ioctl,
+};
+#endif
+
+static int __init
+alpha_rtc_init(void)
+{
+	struct platform_device *pdev;
+	struct rtc_device *rtc;
+
+	init_rtc_epoch();
+
+	pdev = platform_device_register_simple("rtc-alpha", -1, NULL, 0);
+	rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(pdev, rtc);
+	rtc->ops = &alpha_rtc_ops;
+
+#ifdef HAVE_REMOTE_RTC
+	if (alpha_mv.rtc_boot_cpu_only)
+		rtc->ops = &remote_rtc_ops;
+#endif
+
+	return devm_rtc_register_device(rtc);
+}
+device_initcall(alpha_rtc_init);
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
new file mode 100644
index 000000000..45a920ba4
--- /dev/null
+++ b/arch/alpha/kernel/setup.c
@@ -0,0 +1,1457 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/setup.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+/* 2.3.x bootmem, 1999 Andrea Arcangeli <andrea@suse.de> */
+
+/*
+ * Bootup setup stuff.
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/screen_info.h>
+#include <linux/delay.h>
+#include <linux/mc146818rtc.h>
+#include <linux/console.h>
+#include <linux/cpu.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/panic_notifier.h>
+#include <linux/platform_device.h>
+#include <linux/memblock.h>
+#include <linux/pci.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/eisa.h>
+#include <linux/pfn.h>
+#ifdef CONFIG_MAGIC_SYSRQ
+#include <linux/sysrq.h>
+#include <linux/reboot.h>
+#endif
+#include <linux/notifier.h>
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <linux/log2.h>
+#include <linux/export.h>
+
+static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
+static struct notifier_block alpha_panic_block = {
+	alpha_panic_event,
+        NULL,
+        INT_MAX /* try to do it first */
+};
+
+#include <linux/uaccess.h>
+#include <asm/hwrpb.h>
+#include <asm/dma.h>
+#include <asm/mmu_context.h>
+#include <asm/console.h>
+
+#include "proto.h"
+#include "pci_impl.h"
+
+
+struct hwrpb_struct *hwrpb;
+EXPORT_SYMBOL(hwrpb);
+unsigned long srm_hae;
+
+int alpha_l1i_cacheshape;
+int alpha_l1d_cacheshape;
+int alpha_l2_cacheshape;
+int alpha_l3_cacheshape;
+
+#ifdef CONFIG_VERBOSE_MCHECK
+/* 0=minimum, 1=verbose, 2=all */
+/* These can be overridden via the command line, ie "verbose_mcheck=2") */
+unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON;
+#endif
+
+/* Which processor we booted from.  */
+int boot_cpuid;
+
+/*
+ * Using SRM callbacks for initial console output. This works from
+ * setup_arch() time through the end of time_init(), as those places
+ * are under our (Alpha) control.
+
+ * "srmcons" specified in the boot command arguments allows us to
+ * see kernel messages during the period of time before the true
+ * console device is "registered" during console_init(). 
+ * As of this version (2.5.59), console_init() will call
+ * disable_early_printk() as the last action before initializing
+ * the console drivers. That's the last possible time srmcons can be 
+ * unregistered without interfering with console behavior.
+ *
+ * By default, OFF; set it with a bootcommand arg of "srmcons" or 
+ * "console=srm". The meaning of these two args is:
+ *     "srmcons"     - early callback prints 
+ *     "console=srm" - full callback based console, including early prints
+ */
+int srmcons_output = 0;
+
+/* Enforce a memory size limit; useful for testing. By default, none. */
+unsigned long mem_size_limit = 0;
+
+/* Set AGP GART window size (0 means disabled). */
+unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE;
+
+#ifdef CONFIG_ALPHA_GENERIC
+struct alpha_machine_vector alpha_mv;
+EXPORT_SYMBOL(alpha_mv);
+#endif
+
+#ifndef alpha_using_srm
+int alpha_using_srm;
+EXPORT_SYMBOL(alpha_using_srm);
+#endif
+
+#ifndef alpha_using_qemu
+int alpha_using_qemu;
+#endif
+
+static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long,
+					       unsigned long);
+static struct alpha_machine_vector *get_sysvec_byname(const char *);
+static void get_sysnames(unsigned long, unsigned long, unsigned long,
+			 char **, char **);
+static void determine_cpu_caches (unsigned int);
+
+static char __initdata command_line[COMMAND_LINE_SIZE];
+
+/*
+ * The format of "screen_info" is strange, and due to early
+ * i386-setup code. This is just enough to make the console
+ * code think we're on a VGA color display.
+ */
+
+struct screen_info screen_info = {
+	.orig_x = 0,
+	.orig_y = 25,
+	.orig_video_cols = 80,
+	.orig_video_lines = 25,
+	.orig_video_isVGA = 1,
+	.orig_video_points = 16
+};
+
+EXPORT_SYMBOL(screen_info);
+
+/*
+ * The direct map I/O window, if any.  This should be the same
+ * for all busses, since it's used by virt_to_bus.
+ */
+
+unsigned long __direct_map_base;
+unsigned long __direct_map_size;
+EXPORT_SYMBOL(__direct_map_base);
+EXPORT_SYMBOL(__direct_map_size);
+
+/*
+ * Declare all of the machine vectors.
+ */
+
+/* GCC 2.7.2 (on alpha at least) is lame.  It does not support either 
+   __attribute__((weak)) or #pragma weak.  Bypass it and talk directly
+   to the assembler.  */
+
+#define WEAK(X) \
+	extern struct alpha_machine_vector X; \
+	asm(".weak "#X)
+
+WEAK(alcor_mv);
+WEAK(alphabook1_mv);
+WEAK(avanti_mv);
+WEAK(cabriolet_mv);
+WEAK(clipper_mv);
+WEAK(dp264_mv);
+WEAK(eb164_mv);
+WEAK(eb64p_mv);
+WEAK(eb66_mv);
+WEAK(eb66p_mv);
+WEAK(eiger_mv);
+WEAK(jensen_mv);
+WEAK(lx164_mv);
+WEAK(lynx_mv);
+WEAK(marvel_ev7_mv);
+WEAK(miata_mv);
+WEAK(mikasa_mv);
+WEAK(mikasa_primo_mv);
+WEAK(monet_mv);
+WEAK(nautilus_mv);
+WEAK(noname_mv);
+WEAK(noritake_mv);
+WEAK(noritake_primo_mv);
+WEAK(p2k_mv);
+WEAK(pc164_mv);
+WEAK(privateer_mv);
+WEAK(rawhide_mv);
+WEAK(ruffian_mv);
+WEAK(rx164_mv);
+WEAK(sable_mv);
+WEAK(sable_gamma_mv);
+WEAK(shark_mv);
+WEAK(sx164_mv);
+WEAK(takara_mv);
+WEAK(titan_mv);
+WEAK(webbrick_mv);
+WEAK(wildfire_mv);
+WEAK(xl_mv);
+WEAK(xlt_mv);
+
+#undef WEAK
+
+/*
+ * I/O resources inherited from PeeCees.  Except for perhaps the
+ * turbochannel alphas, everyone has these on some sort of SuperIO chip.
+ *
+ * ??? If this becomes less standard, move the struct out into the
+ * machine vector.
+ */
+
+static void __init
+reserve_std_resources(void)
+{
+	static struct resource standard_io_resources[] = {
+		{ .name = "rtc", .start = -1, .end = -1 },
+        	{ .name = "dma1", .start = 0x00, .end = 0x1f },
+        	{ .name = "pic1", .start = 0x20, .end = 0x3f },
+        	{ .name = "timer", .start = 0x40, .end = 0x5f },
+        	{ .name = "keyboard", .start = 0x60, .end = 0x6f },
+        	{ .name = "dma page reg", .start = 0x80, .end = 0x8f },
+        	{ .name = "pic2", .start = 0xa0, .end = 0xbf },
+        	{ .name = "dma2", .start = 0xc0, .end = 0xdf },
+	};
+
+	struct resource *io = &ioport_resource;
+	size_t i;
+
+	if (hose_head) {
+		struct pci_controller *hose;
+		for (hose = hose_head; hose; hose = hose->next)
+			if (hose->index == 0) {
+				io = hose->io_space;
+				break;
+			}
+	}
+
+	/* Fix up for the Jensen's queer RTC placement.  */
+	standard_io_resources[0].start = RTC_PORT(0);
+	standard_io_resources[0].end = RTC_PORT(0) + 0x0f;
+
+	for (i = 0; i < ARRAY_SIZE(standard_io_resources); ++i)
+		request_resource(io, standard_io_resources+i);
+}
+
+#define PFN_MAX		PFN_DOWN(0x80000000)
+#define for_each_mem_cluster(memdesc, _cluster, i)		\
+	for ((_cluster) = (memdesc)->cluster, (i) = 0;		\
+	     (i) < (memdesc)->numclusters; (i)++, (_cluster)++)
+
+static unsigned long __init
+get_mem_size_limit(char *s)
+{
+        unsigned long end = 0;
+        char *from = s;
+
+        end = simple_strtoul(from, &from, 0);
+        if ( *from == 'K' || *from == 'k' ) {
+                end = end << 10;
+                from++;
+        } else if ( *from == 'M' || *from == 'm' ) {
+                end = end << 20;
+                from++;
+        } else if ( *from == 'G' || *from == 'g' ) {
+                end = end << 30;
+                from++;
+        }
+        return end >> PAGE_SHIFT; /* Return the PFN of the limit. */
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void * __init
+move_initrd(unsigned long mem_limit)
+{
+	void *start;
+	unsigned long size;
+
+	size = initrd_end - initrd_start;
+	start = memblock_alloc(PAGE_ALIGN(size), PAGE_SIZE);
+	if (!start || __pa(start) + size > mem_limit) {
+		initrd_start = initrd_end = 0;
+		return NULL;
+	}
+	memmove(start, (void *)initrd_start, size);
+	initrd_start = (unsigned long)start;
+	initrd_end = initrd_start + size;
+	printk("initrd moved to %p\n", start);
+	return start;
+}
+#endif
+
+static void __init
+setup_memory(void *kernel_end)
+{
+	struct memclust_struct * cluster;
+	struct memdesc_struct * memdesc;
+	unsigned long kernel_size;
+	unsigned long i;
+
+	/* Find free clusters, and init and free the bootmem accordingly.  */
+	memdesc = (struct memdesc_struct *)
+	  (hwrpb->mddt_offset + (unsigned long) hwrpb);
+
+	for_each_mem_cluster(memdesc, cluster, i) {
+		unsigned long end;
+
+		printk("memcluster %lu, usage %01lx, start %8lu, end %8lu\n",
+		       i, cluster->usage, cluster->start_pfn,
+		       cluster->start_pfn + cluster->numpages);
+
+		end = cluster->start_pfn + cluster->numpages;
+		if (end > max_low_pfn)
+			max_low_pfn = end;
+
+		memblock_add(PFN_PHYS(cluster->start_pfn),
+			     cluster->numpages << PAGE_SHIFT);
+
+		/* Bit 0 is console/PALcode reserved.  Bit 1 is
+		   non-volatile memory -- we might want to mark
+		   this for later.  */
+		if (cluster->usage & 3)
+			memblock_reserve(PFN_PHYS(cluster->start_pfn),
+				         cluster->numpages << PAGE_SHIFT);
+	}
+
+	/*
+	 * Except for the NUMA systems (wildfire, marvel) all of the 
+	 * Alpha systems we run on support 32GB of memory or less.
+	 * Since the NUMA systems introduce large holes in memory addressing,
+	 * we can get into a situation where there is not enough contiguous
+	 * memory for the memory map. 
+	 *
+	 * Limit memory to the first 32GB to limit the NUMA systems to 
+	 * memory on their first node (wildfire) or 2 (marvel) to avoid 
+	 * not being able to produce the memory map. In order to access 
+	 * all of the memory on the NUMA systems, build with discontiguous
+	 * memory support.
+	 *
+	 * If the user specified a memory limit, let that memory limit stand.
+	 */
+	if (!mem_size_limit) 
+		mem_size_limit = (32ul * 1024 * 1024 * 1024) >> PAGE_SHIFT;
+
+	if (mem_size_limit && max_low_pfn >= mem_size_limit)
+	{
+		printk("setup: forcing memory size to %ldK (from %ldK).\n",
+		       mem_size_limit << (PAGE_SHIFT - 10),
+		       max_low_pfn    << (PAGE_SHIFT - 10));
+		max_low_pfn = mem_size_limit;
+	}
+
+	/* Reserve the kernel memory. */
+	kernel_size = virt_to_phys(kernel_end) - KERNEL_START_PHYS;
+	memblock_reserve(KERNEL_START_PHYS, kernel_size);
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	initrd_start = INITRD_START;
+	if (initrd_start) {
+		initrd_end = initrd_start+INITRD_SIZE;
+		printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
+		       (void *) initrd_start, INITRD_SIZE);
+
+		if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) {
+			if (!move_initrd(PFN_PHYS(max_low_pfn)))
+				printk("initrd extends beyond end of memory "
+				       "(0x%08lx > 0x%p)\ndisabling initrd\n",
+				       initrd_end,
+				       phys_to_virt(PFN_PHYS(max_low_pfn)));
+		} else {
+			memblock_reserve(virt_to_phys((void *)initrd_start),
+					INITRD_SIZE);
+		}
+	}
+#endif /* CONFIG_BLK_DEV_INITRD */
+}
+
+int page_is_ram(unsigned long pfn)
+{
+	struct memclust_struct * cluster;
+	struct memdesc_struct * memdesc;
+	unsigned long i;
+
+	memdesc = (struct memdesc_struct *)
+		(hwrpb->mddt_offset + (unsigned long) hwrpb);
+	for_each_mem_cluster(memdesc, cluster, i)
+	{
+		if (pfn >= cluster->start_pfn  &&
+		    pfn < cluster->start_pfn + cluster->numpages) {
+			return (cluster->usage & 3) ? 0 : 1;
+		}
+	}
+
+	return 0;
+}
+
+static int __init
+register_cpus(void)
+{
+	int i;
+
+	for_each_possible_cpu(i) {
+		struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
+		if (!p)
+			return -ENOMEM;
+		register_cpu(p, i);
+	}
+	return 0;
+}
+
+arch_initcall(register_cpus);
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static void sysrq_reboot_handler(int unused)
+{
+	machine_halt();
+}
+
+static const struct sysrq_key_op srm_sysrq_reboot_op = {
+	.handler	= sysrq_reboot_handler,
+	.help_msg       = "reboot(b)",
+	.action_msg     = "Resetting",
+	.enable_mask    = SYSRQ_ENABLE_BOOT,
+};
+#endif
+
+void __init
+setup_arch(char **cmdline_p)
+{
+	extern char _end[];
+
+	struct alpha_machine_vector *vec = NULL;
+	struct percpu_struct *cpu;
+	char *type_name, *var_name, *p;
+	void *kernel_end = _end; /* end of kernel */
+	char *args = command_line;
+
+	hwrpb = (struct hwrpb_struct*) __va(INIT_HWRPB->phys_addr);
+	boot_cpuid = hard_smp_processor_id();
+
+        /*
+	 * Pre-process the system type to make sure it will be valid.
+	 *
+	 * This may restore real CABRIO and EB66+ family names, ie
+	 * EB64+ and EB66.
+	 *
+	 * Oh, and "white box" AS800 (aka DIGITAL Server 3000 series)
+	 * and AS1200 (DIGITAL Server 5000 series) have the type as
+	 * the negative of the real one.
+	 */
+        if ((long)hwrpb->sys_type < 0) {
+		hwrpb->sys_type = -((long)hwrpb->sys_type);
+		hwrpb_update_checksum(hwrpb);
+	}
+
+	/* Register a call for panic conditions. */
+	atomic_notifier_chain_register(&panic_notifier_list,
+			&alpha_panic_block);
+
+#ifndef alpha_using_srm
+	/* Assume that we've booted from SRM if we haven't booted from MILO.
+	   Detect the later by looking for "MILO" in the system serial nr.  */
+	alpha_using_srm = !str_has_prefix((const char *)hwrpb->ssn, "MILO");
+#endif
+#ifndef alpha_using_qemu
+	/* Similarly, look for QEMU.  */
+	alpha_using_qemu = strstr((const char *)hwrpb->ssn, "QEMU") != 0;
+#endif
+
+	/* If we are using SRM, we want to allow callbacks
+	   as early as possible, so do this NOW, and then
+	   they should work immediately thereafter.
+	*/
+	kernel_end = callback_init(kernel_end);
+
+	/* 
+	 * Locate the command line.
+	 */
+	/* Hack for Jensen... since we're restricted to 8 or 16 chars for
+	   boot flags depending on the boot mode, we need some shorthand.
+	   This should do for installation.  */
+	if (strcmp(COMMAND_LINE, "INSTALL") == 0) {
+		strscpy(command_line, "root=/dev/fd0 load_ramdisk=1", sizeof(command_line));
+	} else {
+		strscpy(command_line, COMMAND_LINE, sizeof(command_line));
+	}
+	strcpy(boot_command_line, command_line);
+	*cmdline_p = command_line;
+
+	/* 
+	 * Process command-line arguments.
+	 */
+	while ((p = strsep(&args, " \t")) != NULL) {
+		if (!*p) continue;
+		if (strncmp(p, "alpha_mv=", 9) == 0) {
+			vec = get_sysvec_byname(p+9);
+			continue;
+		}
+		if (strncmp(p, "cycle=", 6) == 0) {
+			est_cycle_freq = simple_strtol(p+6, NULL, 0);
+			continue;
+		}
+		if (strncmp(p, "mem=", 4) == 0) {
+			mem_size_limit = get_mem_size_limit(p+4);
+			continue;
+		}
+		if (strncmp(p, "srmcons", 7) == 0) {
+			srmcons_output |= 1;
+			continue;
+		}
+		if (strncmp(p, "console=srm", 11) == 0) {
+			srmcons_output |= 2;
+			continue;
+		}
+		if (strncmp(p, "gartsize=", 9) == 0) {
+			alpha_agpgart_size =
+				get_mem_size_limit(p+9) << PAGE_SHIFT;
+			continue;
+		}
+#ifdef CONFIG_VERBOSE_MCHECK
+		if (strncmp(p, "verbose_mcheck=", 15) == 0) {
+			alpha_verbose_mcheck = simple_strtol(p+15, NULL, 0);
+			continue;
+		}
+#endif
+	}
+
+	/* Replace the command line, now that we've killed it with strsep.  */
+	strcpy(command_line, boot_command_line);
+
+	/* If we want SRM console printk echoing early, do it now. */
+	if (alpha_using_srm && srmcons_output) {
+		register_srm_console();
+
+		/*
+		 * If "console=srm" was specified, clear the srmcons_output
+		 * flag now so that time.c won't unregister_srm_console
+		 */
+		if (srmcons_output & 2)
+			srmcons_output = 0;
+	}
+
+#ifdef CONFIG_MAGIC_SYSRQ
+	/* If we're using SRM, make sysrq-b halt back to the prom,
+	   not auto-reboot.  */
+	if (alpha_using_srm) {
+		unregister_sysrq_key('b', __sysrq_reboot_op);
+		register_sysrq_key('b', &srm_sysrq_reboot_op);
+	}
+#endif
+
+	/*
+	 * Identify and reconfigure for the current system.
+	 */
+	cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset);
+
+	get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
+		     cpu->type, &type_name, &var_name);
+	if (*var_name == '0')
+		var_name = "";
+
+	if (!vec) {
+		vec = get_sysvec(hwrpb->sys_type, hwrpb->sys_variation,
+				 cpu->type);
+	}
+
+	if (!vec) {
+		panic("Unsupported system type: %s%s%s (%ld %ld)\n",
+		      type_name, (*var_name ? " variation " : ""), var_name,
+		      hwrpb->sys_type, hwrpb->sys_variation);
+	}
+	if (vec != &alpha_mv) {
+		alpha_mv = *vec;
+	}
+	
+	printk("Booting "
+#ifdef CONFIG_ALPHA_GENERIC
+	       "GENERIC "
+#endif
+	       "on %s%s%s using machine vector %s from %s\n",
+	       type_name, (*var_name ? " variation " : ""),
+	       var_name, alpha_mv.vector_name,
+	       (alpha_using_srm ? "SRM" : "MILO"));
+
+	printk("Major Options: "
+#ifdef CONFIG_SMP
+	       "SMP "
+#endif
+#ifdef CONFIG_ALPHA_EV56
+	       "EV56 "
+#endif
+#ifdef CONFIG_ALPHA_EV67
+	       "EV67 "
+#endif
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+	       "LEGACY_START "
+#endif
+#ifdef CONFIG_VERBOSE_MCHECK
+	       "VERBOSE_MCHECK "
+#endif
+
+#ifdef CONFIG_DEBUG_SPINLOCK
+	       "DEBUG_SPINLOCK "
+#endif
+#ifdef CONFIG_MAGIC_SYSRQ
+	       "MAGIC_SYSRQ "
+#endif
+	       "\n");
+
+	printk("Command line: %s\n", command_line);
+
+	/* 
+	 * Sync up the HAE.
+	 * Save the SRM's current value for restoration.
+	 */
+	srm_hae = *alpha_mv.hae_register;
+	__set_hae(alpha_mv.hae_cache);
+
+	/* Reset enable correctable error reports.  */
+	wrmces(0x7);
+
+	/* Find our memory.  */
+	setup_memory(kernel_end);
+	memblock_set_bottom_up(true);
+	sparse_init();
+
+	/* First guess at cpu cache sizes.  Do this before init_arch.  */
+	determine_cpu_caches(cpu->type);
+
+	/* Initialize the machine.  Usually has to do with setting up
+	   DMA windows and the like.  */
+	if (alpha_mv.init_arch)
+		alpha_mv.init_arch();
+
+	/* Reserve standard resources.  */
+	reserve_std_resources();
+
+	/* 
+	 * Give us a default console.  TGA users will see nothing until
+	 * chr_dev_init is called, rather late in the boot sequence.
+	 */
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_VGA_CONSOLE)
+	conswitchp = &vga_con;
+#endif
+#endif
+
+	/* Default root filesystem to sda2.  */
+	ROOT_DEV = Root_SDA2;
+
+#ifdef CONFIG_EISA
+	/* FIXME:  only set this when we actually have EISA in this box? */
+	EISA_bus = 1;
+#endif
+
+ 	/*
+	 * Check ASN in HWRPB for validity, report if bad.
+	 * FIXME: how was this failing?  Should we trust it instead,
+	 * and copy the value into alpha_mv.max_asn?
+ 	 */
+
+ 	if (hwrpb->max_asn != MAX_ASN) {
+		printk("Max ASN from HWRPB is bad (0x%lx)\n", hwrpb->max_asn);
+ 	}
+
+	/*
+	 * Identify the flock of penguins.
+	 */
+
+#ifdef CONFIG_SMP
+	setup_smp();
+#endif
+	paging_init();
+}
+
+static char sys_unknown[] = "Unknown";
+static char systype_names[][16] = {
+	"0",
+	"ADU", "Cobra", "Ruby", "Flamingo", "Mannequin", "Jensen",
+	"Pelican", "Morgan", "Sable", "Medulla", "Noname",
+	"Turbolaser", "Avanti", "Mustang", "Alcor", "Tradewind",
+	"Mikasa", "EB64", "EB66", "EB64+", "AlphaBook1",
+	"Rawhide", "K2", "Lynx", "XL", "EB164", "Noritake",
+	"Cortex", "29", "Miata", "XXM", "Takara", "Yukon",
+	"Tsunami", "Wildfire", "CUSCO", "Eiger", "Titan", "Marvel"
+};
+
+static char unofficial_names[][8] = {"100", "Ruffian"};
+
+static char api_names[][16] = {"200", "Nautilus"};
+
+static char eb164_names[][8] = {"EB164", "PC164", "LX164", "SX164", "RX164"};
+static int eb164_indices[] = {0,0,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4};
+
+static char alcor_names[][16] = {"Alcor", "Maverick", "Bret"};
+static int alcor_indices[] = {0,0,0,1,1,1,0,0,0,0,0,0,2,2,2,2,2,2};
+
+static char eb64p_names[][16] = {"EB64+", "Cabriolet", "AlphaPCI64"};
+static int eb64p_indices[] = {0,0,1,2};
+
+static char eb66_names[][8] = {"EB66", "EB66+"};
+static int eb66_indices[] = {0,0,1};
+
+static char marvel_names[][16] = {
+	"Marvel/EV7"
+};
+static int marvel_indices[] = { 0 };
+
+static char rawhide_names[][16] = {
+	"Dodge", "Wrangler", "Durango", "Tincup", "DaVinci"
+};
+static int rawhide_indices[] = {0,0,0,1,1,2,2,3,3,4,4};
+
+static char titan_names[][16] = {
+	"DEFAULT", "Privateer", "Falcon", "Granite"
+};
+static int titan_indices[] = {0,1,2,2,3};
+
+static char tsunami_names[][16] = {
+	"0", "DP264", "Warhol", "Windjammer", "Monet", "Clipper",
+	"Goldrush", "Webbrick", "Catamaran", "Brisbane", "Melbourne",
+	"Flying Clipper", "Shark"
+};
+static int tsunami_indices[] = {0,1,2,3,4,5,6,7,8,9,10,11,12};
+
+static struct alpha_machine_vector * __init
+get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu)
+{
+	static struct alpha_machine_vector *systype_vecs[] __initdata =
+	{
+		NULL,		/* 0 */
+		NULL,		/* ADU */
+		NULL,		/* Cobra */
+		NULL,		/* Ruby */
+		NULL,		/* Flamingo */
+		NULL,		/* Mannequin */
+		&jensen_mv,
+		NULL, 		/* Pelican */
+		NULL,		/* Morgan */
+		NULL,		/* Sable -- see below.  */
+		NULL,		/* Medulla */
+		&noname_mv,
+		NULL,		/* Turbolaser */
+		&avanti_mv,
+		NULL,		/* Mustang */
+		NULL,		/* Alcor, Bret, Maverick. HWRPB inaccurate? */
+		NULL,		/* Tradewind */
+		NULL,		/* Mikasa -- see below.  */
+		NULL,		/* EB64 */
+		NULL,		/* EB66 -- see variation.  */
+		NULL,		/* EB64+ -- see variation.  */
+		&alphabook1_mv,
+		&rawhide_mv,
+		NULL,		/* K2 */
+		&lynx_mv,	/* Lynx */
+		&xl_mv,
+		NULL,		/* EB164 -- see variation.  */
+		NULL,		/* Noritake -- see below.  */
+		NULL,		/* Cortex */
+		NULL,		/* 29 */
+		&miata_mv,
+		NULL,		/* XXM */
+		&takara_mv,
+		NULL,		/* Yukon */
+		NULL,		/* Tsunami -- see variation.  */
+		&wildfire_mv,	/* Wildfire */
+		NULL,		/* CUSCO */
+		&eiger_mv,	/* Eiger */
+		NULL,		/* Titan */
+		NULL,		/* Marvel */
+	};
+
+	static struct alpha_machine_vector *unofficial_vecs[] __initdata =
+	{
+		NULL,		/* 100 */
+		&ruffian_mv,
+	};
+
+	static struct alpha_machine_vector *api_vecs[] __initdata =
+	{
+		NULL,		/* 200 */
+		&nautilus_mv,
+	};
+
+	static struct alpha_machine_vector *alcor_vecs[] __initdata = 
+	{
+		&alcor_mv, &xlt_mv, &xlt_mv
+	};
+
+	static struct alpha_machine_vector *eb164_vecs[] __initdata =
+	{
+		&eb164_mv, &pc164_mv, &lx164_mv, &sx164_mv, &rx164_mv
+	};
+
+	static struct alpha_machine_vector *eb64p_vecs[] __initdata =
+	{
+		&eb64p_mv,
+		&cabriolet_mv,
+		&cabriolet_mv		/* AlphaPCI64 */
+	};
+
+	static struct alpha_machine_vector *eb66_vecs[] __initdata =
+	{
+		&eb66_mv,
+		&eb66p_mv
+	};
+
+	static struct alpha_machine_vector *marvel_vecs[] __initdata =
+	{
+		&marvel_ev7_mv,
+	};
+
+	static struct alpha_machine_vector *titan_vecs[] __initdata =
+	{
+		&titan_mv,		/* default   */
+		&privateer_mv,		/* privateer */
+		&titan_mv,		/* falcon    */
+		&privateer_mv,		/* granite   */
+	};
+
+	static struct alpha_machine_vector *tsunami_vecs[]  __initdata =
+	{
+		NULL,
+		&dp264_mv,		/* dp264 */
+		&dp264_mv,		/* warhol */
+		&dp264_mv,		/* windjammer */
+		&monet_mv,		/* monet */
+		&clipper_mv,		/* clipper */
+		&dp264_mv,		/* goldrush */
+		&webbrick_mv,		/* webbrick */
+		&dp264_mv,		/* catamaran */
+		NULL,			/* brisbane? */
+		NULL,			/* melbourne? */
+		NULL,			/* flying clipper? */
+		&shark_mv,		/* shark */
+	};
+
+	/* ??? Do we need to distinguish between Rawhides?  */
+
+	struct alpha_machine_vector *vec;
+
+	/* Search the system tables first... */
+	vec = NULL;
+	if (type < ARRAY_SIZE(systype_vecs)) {
+		vec = systype_vecs[type];
+	} else if ((type > ST_API_BIAS) &&
+		   (type - ST_API_BIAS) < ARRAY_SIZE(api_vecs)) {
+		vec = api_vecs[type - ST_API_BIAS];
+	} else if ((type > ST_UNOFFICIAL_BIAS) &&
+		   (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_vecs)) {
+		vec = unofficial_vecs[type - ST_UNOFFICIAL_BIAS];
+	}
+
+	/* If we've not found one, try for a variation.  */
+
+	if (!vec) {
+		/* Member ID is a bit-field. */
+		unsigned long member = (variation >> 10) & 0x3f;
+
+		cpu &= 0xffffffff; /* make it usable */
+
+		switch (type) {
+		case ST_DEC_ALCOR:
+			if (member < ARRAY_SIZE(alcor_indices))
+				vec = alcor_vecs[alcor_indices[member]];
+			break;
+		case ST_DEC_EB164:
+			if (member < ARRAY_SIZE(eb164_indices))
+				vec = eb164_vecs[eb164_indices[member]];
+			/* PC164 may show as EB164 variation with EV56 CPU,
+			   but, since no true EB164 had anything but EV5... */
+			if (vec == &eb164_mv && cpu == EV56_CPU)
+				vec = &pc164_mv;
+			break;
+		case ST_DEC_EB64P:
+			if (member < ARRAY_SIZE(eb64p_indices))
+				vec = eb64p_vecs[eb64p_indices[member]];
+			break;
+		case ST_DEC_EB66:
+			if (member < ARRAY_SIZE(eb66_indices))
+				vec = eb66_vecs[eb66_indices[member]];
+			break;
+		case ST_DEC_MARVEL:
+			if (member < ARRAY_SIZE(marvel_indices))
+				vec = marvel_vecs[marvel_indices[member]];
+			break;
+		case ST_DEC_TITAN:
+			vec = titan_vecs[0];	/* default */
+			if (member < ARRAY_SIZE(titan_indices))
+				vec = titan_vecs[titan_indices[member]];
+			break;
+		case ST_DEC_TSUNAMI:
+			if (member < ARRAY_SIZE(tsunami_indices))
+				vec = tsunami_vecs[tsunami_indices[member]];
+			break;
+		case ST_DEC_1000:
+			if (cpu == EV5_CPU || cpu == EV56_CPU)
+				vec = &mikasa_primo_mv;
+			else
+				vec = &mikasa_mv;
+			break;
+		case ST_DEC_NORITAKE:
+			if (cpu == EV5_CPU || cpu == EV56_CPU)
+				vec = &noritake_primo_mv;
+			else
+				vec = &noritake_mv;
+			break;
+		case ST_DEC_2100_A500:
+			if (cpu == EV5_CPU || cpu == EV56_CPU)
+				vec = &sable_gamma_mv;
+			else
+				vec = &sable_mv;
+			break;
+		}
+	}
+	return vec;
+}
+
+static struct alpha_machine_vector * __init
+get_sysvec_byname(const char *name)
+{
+	static struct alpha_machine_vector *all_vecs[] __initdata =
+	{
+		&alcor_mv,
+		&alphabook1_mv,
+		&avanti_mv,
+		&cabriolet_mv,
+		&clipper_mv,
+		&dp264_mv,
+		&eb164_mv,
+		&eb64p_mv,
+		&eb66_mv,
+		&eb66p_mv,
+		&eiger_mv,
+		&jensen_mv,
+		&lx164_mv,
+		&lynx_mv,
+		&miata_mv,
+		&mikasa_mv,
+		&mikasa_primo_mv,
+		&monet_mv,
+		&nautilus_mv,
+		&noname_mv,
+		&noritake_mv,
+		&noritake_primo_mv,
+		&p2k_mv,
+		&pc164_mv,
+		&privateer_mv,
+		&rawhide_mv,
+		&ruffian_mv,
+		&rx164_mv,
+		&sable_mv,
+		&sable_gamma_mv,
+		&shark_mv,
+		&sx164_mv,
+		&takara_mv,
+		&webbrick_mv,
+		&wildfire_mv,
+		&xl_mv,
+		&xlt_mv
+	};
+
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(all_vecs); ++i) {
+		struct alpha_machine_vector *mv = all_vecs[i];
+		if (strcasecmp(mv->vector_name, name) == 0)
+			return mv;
+	}
+	return NULL;
+}
+
+static void
+get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu,
+	     char **type_name, char **variation_name)
+{
+	unsigned long member;
+
+	/* If not in the tables, make it UNKNOWN,
+	   else set type name to family */
+	if (type < ARRAY_SIZE(systype_names)) {
+		*type_name = systype_names[type];
+	} else if ((type > ST_API_BIAS) &&
+		   (type - ST_API_BIAS) < ARRAY_SIZE(api_names)) {
+		*type_name = api_names[type - ST_API_BIAS];
+	} else if ((type > ST_UNOFFICIAL_BIAS) &&
+		   (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_names)) {
+		*type_name = unofficial_names[type - ST_UNOFFICIAL_BIAS];
+	} else {
+		*type_name = sys_unknown;
+		*variation_name = sys_unknown;
+		return;
+	}
+
+	/* Set variation to "0"; if variation is zero, done.  */
+	*variation_name = systype_names[0];
+	if (variation == 0) {
+		return;
+	}
+
+	member = (variation >> 10) & 0x3f; /* member ID is a bit-field */
+
+	cpu &= 0xffffffff; /* make it usable */
+
+	switch (type) { /* select by family */
+	default: /* default to variation "0" for now */
+		break;
+	case ST_DEC_EB164:
+		if (member >= ARRAY_SIZE(eb164_indices))
+			break;
+		*variation_name = eb164_names[eb164_indices[member]];
+		/* PC164 may show as EB164 variation, but with EV56 CPU,
+		   so, since no true EB164 had anything but EV5... */
+		if (eb164_indices[member] == 0 && cpu == EV56_CPU)
+			*variation_name = eb164_names[1]; /* make it PC164 */
+		break;
+	case ST_DEC_ALCOR:
+		if (member < ARRAY_SIZE(alcor_indices))
+			*variation_name = alcor_names[alcor_indices[member]];
+		break;
+	case ST_DEC_EB64P:
+		if (member < ARRAY_SIZE(eb64p_indices))
+			*variation_name = eb64p_names[eb64p_indices[member]];
+		break;
+	case ST_DEC_EB66:
+		if (member < ARRAY_SIZE(eb66_indices))
+			*variation_name = eb66_names[eb66_indices[member]];
+		break;
+	case ST_DEC_MARVEL:
+		if (member < ARRAY_SIZE(marvel_indices))
+			*variation_name = marvel_names[marvel_indices[member]];
+		break;
+	case ST_DEC_RAWHIDE:
+		if (member < ARRAY_SIZE(rawhide_indices))
+			*variation_name = rawhide_names[rawhide_indices[member]];
+		break;
+	case ST_DEC_TITAN:
+		*variation_name = titan_names[0];	/* default */
+		if (member < ARRAY_SIZE(titan_indices))
+			*variation_name = titan_names[titan_indices[member]];
+		break;
+	case ST_DEC_TSUNAMI:
+		if (member < ARRAY_SIZE(tsunami_indices))
+			*variation_name = tsunami_names[tsunami_indices[member]];
+		break;
+	}
+}
+
+/*
+ * A change was made to the HWRPB via an ECO and the following code
+ * tracks a part of the ECO.  In HWRPB versions less than 5, the ECO
+ * was not implemented in the console firmware.  If it's revision 5 or
+ * greater we can get the name of the platform as an ASCII string from
+ * the HWRPB.  That's what this function does.  It checks the revision
+ * level and if the string is in the HWRPB it returns the address of
+ * the string--a pointer to the name of the platform.
+ *
+ * Returns:
+ *      - Pointer to a ASCII string if it's in the HWRPB
+ *      - Pointer to a blank string if the data is not in the HWRPB.
+ */
+
+static char *
+platform_string(void)
+{
+	struct dsr_struct *dsr;
+	static char unk_system_string[] = "N/A";
+
+	/* Go to the console for the string pointer.
+	 * If the rpb_vers is not 5 or greater the rpb
+	 * is old and does not have this data in it.
+	 */
+	if (hwrpb->revision < 5)
+		return (unk_system_string);
+	else {
+		/* The Dynamic System Recognition struct
+		 * has the system platform name starting
+		 * after the character count of the string.
+		 */
+		dsr =  ((struct dsr_struct *)
+			((char *)hwrpb + hwrpb->dsr_offset));
+		return ((char *)dsr + (dsr->sysname_off +
+				       sizeof(long)));
+	}
+}
+
+static int
+get_nr_processors(struct percpu_struct *cpubase, unsigned long num)
+{
+	struct percpu_struct *cpu;
+	unsigned long i;
+	int count = 0;
+
+	for (i = 0; i < num; i++) {
+		cpu = (struct percpu_struct *)
+			((char *)cpubase + i*hwrpb->processor_size);
+		if ((cpu->flags & 0x1cc) == 0x1cc)
+			count++;
+	}
+	return count;
+}
+
+static void
+show_cache_size (struct seq_file *f, const char *which, int shape)
+{
+	if (shape == -1)
+		seq_printf (f, "%s\t\t: n/a\n", which);
+	else if (shape == 0)
+		seq_printf (f, "%s\t\t: unknown\n", which);
+	else
+		seq_printf (f, "%s\t\t: %dK, %d-way, %db line\n",
+			    which, shape >> 10, shape & 15,
+			    1 << ((shape >> 4) & 15));
+}
+
+static int
+show_cpuinfo(struct seq_file *f, void *slot)
+{
+	extern struct unaligned_stat {
+		unsigned long count, va, pc;
+	} unaligned[2];
+
+	static char cpu_names[][8] = {
+		"EV3", "EV4", "Simulate", "LCA4", "EV5", "EV45", "EV56",
+		"EV6", "PCA56", "PCA57", "EV67", "EV68CB", "EV68AL",
+		"EV68CX", "EV7", "EV79", "EV69"
+	};
+
+	struct percpu_struct *cpu = slot;
+	unsigned int cpu_index;
+	char *cpu_name;
+	char *systype_name;
+	char *sysvariation_name;
+	int nr_processors;
+	unsigned long timer_freq;
+
+	cpu_index = (unsigned) (cpu->type - 1);
+	cpu_name = "Unknown";
+	if (cpu_index < ARRAY_SIZE(cpu_names))
+		cpu_name = cpu_names[cpu_index];
+
+	get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
+		     cpu->type, &systype_name, &sysvariation_name);
+
+	nr_processors = get_nr_processors(cpu, hwrpb->nr_processors);
+
+#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200
+	timer_freq = (100UL * hwrpb->intr_freq) / 4096;
+#else
+	timer_freq = 100UL * CONFIG_HZ;
+#endif
+
+	seq_printf(f, "cpu\t\t\t: Alpha\n"
+		      "cpu model\t\t: %s\n"
+		      "cpu variation\t\t: %ld\n"
+		      "cpu revision\t\t: %ld\n"
+		      "cpu serial number\t: %s\n"
+		      "system type\t\t: %s\n"
+		      "system variation\t: %s\n"
+		      "system revision\t\t: %ld\n"
+		      "system serial number\t: %s\n"
+		      "cycle frequency [Hz]\t: %lu %s\n"
+		      "timer frequency [Hz]\t: %lu.%02lu\n"
+		      "page size [bytes]\t: %ld\n"
+		      "phys. address bits\t: %ld\n"
+		      "max. addr. space #\t: %ld\n"
+		      "BogoMIPS\t\t: %lu.%02lu\n"
+		      "kernel unaligned acc\t: %ld (pc=%lx,va=%lx)\n"
+		      "user unaligned acc\t: %ld (pc=%lx,va=%lx)\n"
+		      "platform string\t\t: %s\n"
+		      "cpus detected\t\t: %d\n",
+		       cpu_name, cpu->variation, cpu->revision,
+		       (char*)cpu->serial_no,
+		       systype_name, sysvariation_name, hwrpb->sys_revision,
+		       (char*)hwrpb->ssn,
+		       est_cycle_freq ? : hwrpb->cycle_freq,
+		       est_cycle_freq ? "est." : "",
+		       timer_freq / 100, timer_freq % 100,
+		       hwrpb->pagesize,
+		       hwrpb->pa_bits,
+		       hwrpb->max_asn,
+		       loops_per_jiffy / (500000/HZ),
+		       (loops_per_jiffy / (5000/HZ)) % 100,
+		       unaligned[0].count, unaligned[0].pc, unaligned[0].va,
+		       unaligned[1].count, unaligned[1].pc, unaligned[1].va,
+		       platform_string(), nr_processors);
+
+#ifdef CONFIG_SMP
+	seq_printf(f, "cpus active\t\t: %u\n"
+		      "cpu active mask\t\t: %016lx\n",
+		       num_online_cpus(), cpumask_bits(cpu_possible_mask)[0]);
+#endif
+
+	show_cache_size (f, "L1 Icache", alpha_l1i_cacheshape);
+	show_cache_size (f, "L1 Dcache", alpha_l1d_cacheshape);
+	show_cache_size (f, "L2 cache", alpha_l2_cacheshape);
+	show_cache_size (f, "L3 cache", alpha_l3_cacheshape);
+
+	return 0;
+}
+
+static int __init
+read_mem_block(int *addr, int stride, int size)
+{
+	long nloads = size / stride, cnt, tmp;
+
+	__asm__ __volatile__(
+	"	rpcc    %0\n"
+	"1:	ldl	%3,0(%2)\n"
+	"	subq	%1,1,%1\n"
+	/* Next two XORs introduce an explicit data dependency between
+	   consecutive loads in the loop, which will give us true load
+	   latency. */
+	"	xor	%3,%2,%2\n"
+	"	xor	%3,%2,%2\n"
+	"	addq	%2,%4,%2\n"
+	"	bne	%1,1b\n"
+	"	rpcc	%3\n"
+	"	subl	%3,%0,%0\n"
+	: "=&r" (cnt), "=&r" (nloads), "=&r" (addr), "=&r" (tmp)
+	: "r" (stride), "1" (nloads), "2" (addr));
+
+	return cnt / (size / stride);
+}
+
+#define CSHAPE(totalsize, linesize, assoc) \
+  ((totalsize & ~0xff) | (linesize << 4) | assoc)
+
+/* ??? EV5 supports up to 64M, but did the systems with more than
+   16M of BCACHE ever exist? */
+#define MAX_BCACHE_SIZE	16*1024*1024
+
+/* Note that the offchip caches are direct mapped on all Alphas. */
+static int __init
+external_cache_probe(int minsize, int width)
+{
+	int cycles, prev_cycles = 1000000;
+	int stride = 1 << width;
+	long size = minsize, maxsize = MAX_BCACHE_SIZE * 2;
+
+	if (maxsize > (max_low_pfn + 1) << PAGE_SHIFT)
+		maxsize = 1 << (ilog2(max_low_pfn + 1) + PAGE_SHIFT);
+
+	/* Get the first block cached. */
+	read_mem_block(__va(0), stride, size);
+
+	while (size < maxsize) {
+		/* Get an average load latency in cycles. */
+		cycles = read_mem_block(__va(0), stride, size);
+		if (cycles > prev_cycles * 2) {
+			/* Fine, we exceed the cache. */
+			printk("%ldK Bcache detected; load hit latency %d "
+			       "cycles, load miss latency %d cycles\n",
+			       size >> 11, prev_cycles, cycles);
+			return CSHAPE(size >> 1, width, 1);
+		}
+		/* Try to get the next block cached. */
+		read_mem_block(__va(size), stride, size);
+		prev_cycles = cycles;
+		size <<= 1;
+	}
+	return -1;	/* No BCACHE found. */
+}
+
+static void __init
+determine_cpu_caches (unsigned int cpu_type)
+{
+	int L1I, L1D, L2, L3;
+
+	switch (cpu_type) {
+	case EV4_CPU:
+	case EV45_CPU:
+	  {
+		if (cpu_type == EV4_CPU)
+			L1I = CSHAPE(8*1024, 5, 1);
+		else
+			L1I = CSHAPE(16*1024, 5, 1);
+		L1D = L1I;
+		L3 = -1;
+	
+		/* BIU_CTL is a write-only Abox register.  PALcode has a
+		   shadow copy, and may be available from some versions
+		   of the CSERVE PALcall.  If we can get it, then
+
+			unsigned long biu_ctl, size;
+			size = 128*1024 * (1 << ((biu_ctl >> 28) & 7));
+			L2 = CSHAPE (size, 5, 1);
+
+		   Unfortunately, we can't rely on that.
+		*/
+		L2 = external_cache_probe(128*1024, 5);
+		break;
+	  }
+
+	case LCA4_CPU:
+	  {
+		unsigned long car, size;
+
+		L1I = L1D = CSHAPE(8*1024, 5, 1);
+		L3 = -1;
+
+		car = *(vuip) phys_to_virt (0x120000078UL);
+		size = 64*1024 * (1 << ((car >> 5) & 7));
+		/* No typo -- 8 byte cacheline size.  Whodathunk.  */
+		L2 = (car & 1 ? CSHAPE (size, 3, 1) : -1);
+		break;
+	  }
+
+	case EV5_CPU:
+	case EV56_CPU:
+	  {
+		unsigned long sc_ctl, width;
+
+		L1I = L1D = CSHAPE(8*1024, 5, 1);
+
+		/* Check the line size of the Scache.  */
+		sc_ctl = *(vulp) phys_to_virt (0xfffff000a8UL);
+		width = sc_ctl & 0x1000 ? 6 : 5;
+		L2 = CSHAPE (96*1024, width, 3);
+
+		/* BC_CONTROL and BC_CONFIG are write-only IPRs.  PALcode
+		   has a shadow copy, and may be available from some versions
+		   of the CSERVE PALcall.  If we can get it, then
+
+			unsigned long bc_control, bc_config, size;
+			size = 1024*1024 * (1 << ((bc_config & 7) - 1));
+			L3 = (bc_control & 1 ? CSHAPE (size, width, 1) : -1);
+
+		   Unfortunately, we can't rely on that.
+		*/
+		L3 = external_cache_probe(1024*1024, width);
+		break;
+	  }
+
+	case PCA56_CPU:
+	case PCA57_CPU:
+	  {
+		if (cpu_type == PCA56_CPU) {
+			L1I = CSHAPE(16*1024, 6, 1);
+			L1D = CSHAPE(8*1024, 5, 1);
+		} else {
+			L1I = CSHAPE(32*1024, 6, 2);
+			L1D = CSHAPE(16*1024, 5, 1);
+		}
+		L3 = -1;
+
+#if 0
+		unsigned long cbox_config, size;
+
+		cbox_config = *(vulp) phys_to_virt (0xfffff00008UL);
+		size = 512*1024 * (1 << ((cbox_config >> 12) & 3));
+
+		L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1);
+#else
+		L2 = external_cache_probe(512*1024, 6);
+#endif
+		break;
+	  }
+
+	case EV6_CPU:
+	case EV67_CPU:
+	case EV68CB_CPU:
+	case EV68AL_CPU:
+	case EV68CX_CPU:
+	case EV69_CPU:
+		L1I = L1D = CSHAPE(64*1024, 6, 2);
+		L2 = external_cache_probe(1024*1024, 6);
+		L3 = -1;
+		break;
+
+	case EV7_CPU:
+	case EV79_CPU:
+		L1I = L1D = CSHAPE(64*1024, 6, 2);
+		L2 = CSHAPE(7*1024*1024/4, 6, 7);
+		L3 = -1;
+		break;
+
+	default:
+		/* Nothing known about this cpu type.  */
+		L1I = L1D = L2 = L3 = 0;
+		break;
+	}
+
+	alpha_l1i_cacheshape = L1I;
+	alpha_l1d_cacheshape = L1D;
+	alpha_l2_cacheshape = L2;
+	alpha_l3_cacheshape = L3;
+}
+
+/*
+ * We show only CPU #0 info.
+ */
+static void *
+c_start(struct seq_file *f, loff_t *pos)
+{
+	return *pos ? NULL : (char *)hwrpb + hwrpb->processor_offset;
+}
+
+static void *
+c_next(struct seq_file *f, void *v, loff_t *pos)
+{
+	(*pos)++;
+	return NULL;
+}
+
+static void
+c_stop(struct seq_file *f, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};
+
+
+static int
+alpha_panic_event(struct notifier_block *this, unsigned long event, void *ptr)
+{
+#if 1
+	/* FIXME FIXME FIXME */
+	/* If we are using SRM and serial console, just hard halt here. */
+	if (alpha_using_srm && srmcons_output)
+		__halt();
+#endif
+        return NOTIFY_DONE;
+}
+
+static __init int add_pcspkr(void)
+{
+	struct platform_device *pd;
+	int ret;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
new file mode 100644
index 000000000..6f47f256f
--- /dev/null
+++ b/arch/alpha/kernel/signal.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/signal.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ *
+ *  1997-11-02  Modified for POSIX.1b signals by Richard Henderson
+ */
+
+#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/tty.h>
+#include <linux/binfmts.h>
+#include <linux/bitops.h>
+#include <linux/syscalls.h>
+#include <linux/resume_user_mode.h>
+
+#include <linux/uaccess.h>
+#include <asm/sigcontext.h>
+#include <asm/ucontext.h>
+
+#include "proto.h"
+
+
+#define DEBUG_SIG 0
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage void ret_from_sys_call(void);
+
+/*
+ * The OSF/1 sigprocmask calling sequence is different from the
+ * C sigprocmask() sequence..
+ */
+SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
+{
+	sigset_t oldmask;
+	sigset_t mask;
+	unsigned long res;
+
+	siginitset(&mask, newmask & _BLOCKABLE);
+	res = sigprocmask(how, &mask, &oldmask);
+	if (!res) {
+		force_successful_syscall_return();
+		res = oldmask.sig[0];
+	}
+	return res;
+}
+
+SYSCALL_DEFINE3(osf_sigaction, int, sig,
+		const struct osf_sigaction __user *, act,
+		struct osf_sigaction __user *, oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	if (act) {
+		old_sigset_t mask;
+		if (!access_ok(act, sizeof(*act)) ||
+		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+		    __get_user(mask, &act->sa_mask))
+			return -EFAULT;
+		siginitset(&new_ka.sa.sa_mask, mask);
+		new_ka.ka_restorer = NULL;
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(oact, sizeof(*oact)) ||
+		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
+			return -EFAULT;
+	}
+
+	return ret;
+}
+
+SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
+		struct sigaction __user *, oact,
+		size_t, sigsetsize, void __user *, restorer)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	/* XXX: Don't preclude handling different sized sigset_t's.  */
+	if (sigsetsize != sizeof(sigset_t))
+		return -EINVAL;
+
+	if (act) {
+		new_ka.ka_restorer = restorer;
+		if (copy_from_user(&new_ka.sa, act, sizeof(*act)))
+			return -EFAULT;
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (copy_to_user(oact, &old_ka.sa, sizeof(*oact)))
+			return -EFAULT;
+	}
+
+	return ret;
+}
+
+/*
+ * Do a signal return; undo the signal stack.
+ */
+
+#if _NSIG_WORDS > 1
+# error "Non SA_SIGINFO frame needs rearranging"
+#endif
+
+struct sigframe
+{
+	struct sigcontext sc;
+	unsigned int retcode[3];
+};
+
+struct rt_sigframe
+{
+	struct siginfo info;
+	struct ucontext uc;
+	unsigned int retcode[3];
+};
+
+/* If this changes, userland unwinders that Know Things about our signal
+   frame will break.  Do not undertake lightly.  It also implies an ABI
+   change wrt the size of siginfo_t, which may cause some pain.  */
+extern char compile_time_assert
+        [offsetof(struct rt_sigframe, uc.uc_mcontext) == 176 ? 1 : -1];
+
+#define INSN_MOV_R30_R16	0x47fe0410
+#define INSN_LDI_R0		0x201f0000
+#define INSN_CALLSYS		0x00000083
+
+static long
+restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
+{
+	unsigned long usp;
+	struct switch_stack *sw = (struct switch_stack *)regs - 1;
+	long i, err = __get_user(regs->pc, &sc->sc_pc);
+
+	current->restart_block.fn = do_no_restart_syscall;
+
+	sw->r26 = (unsigned long) ret_from_sys_call;
+
+	err |= __get_user(regs->r0, sc->sc_regs+0);
+	err |= __get_user(regs->r1, sc->sc_regs+1);
+	err |= __get_user(regs->r2, sc->sc_regs+2);
+	err |= __get_user(regs->r3, sc->sc_regs+3);
+	err |= __get_user(regs->r4, sc->sc_regs+4);
+	err |= __get_user(regs->r5, sc->sc_regs+5);
+	err |= __get_user(regs->r6, sc->sc_regs+6);
+	err |= __get_user(regs->r7, sc->sc_regs+7);
+	err |= __get_user(regs->r8, sc->sc_regs+8);
+	err |= __get_user(sw->r9, sc->sc_regs+9);
+	err |= __get_user(sw->r10, sc->sc_regs+10);
+	err |= __get_user(sw->r11, sc->sc_regs+11);
+	err |= __get_user(sw->r12, sc->sc_regs+12);
+	err |= __get_user(sw->r13, sc->sc_regs+13);
+	err |= __get_user(sw->r14, sc->sc_regs+14);
+	err |= __get_user(sw->r15, sc->sc_regs+15);
+	err |= __get_user(regs->r16, sc->sc_regs+16);
+	err |= __get_user(regs->r17, sc->sc_regs+17);
+	err |= __get_user(regs->r18, sc->sc_regs+18);
+	err |= __get_user(regs->r19, sc->sc_regs+19);
+	err |= __get_user(regs->r20, sc->sc_regs+20);
+	err |= __get_user(regs->r21, sc->sc_regs+21);
+	err |= __get_user(regs->r22, sc->sc_regs+22);
+	err |= __get_user(regs->r23, sc->sc_regs+23);
+	err |= __get_user(regs->r24, sc->sc_regs+24);
+	err |= __get_user(regs->r25, sc->sc_regs+25);
+	err |= __get_user(regs->r26, sc->sc_regs+26);
+	err |= __get_user(regs->r27, sc->sc_regs+27);
+	err |= __get_user(regs->r28, sc->sc_regs+28);
+	err |= __get_user(regs->gp, sc->sc_regs+29);
+	err |= __get_user(usp, sc->sc_regs+30);
+	wrusp(usp);
+
+	for (i = 0; i < 31; i++)
+		err |= __get_user(sw->fp[i], sc->sc_fpregs+i);
+	err |= __get_user(sw->fp[31], &sc->sc_fpcr);
+
+	return err;
+}
+
+/* Note that this syscall is also used by setcontext(3) to install
+   a given sigcontext.  This because it's impossible to set *all*
+   registers and transfer control from userland.  */
+
+asmlinkage void
+do_sigreturn(struct sigcontext __user *sc)
+{
+	struct pt_regs *regs = current_pt_regs();
+	sigset_t set;
+
+	/* Verify that it's a good sigcontext before using it */
+	if (!access_ok(sc, sizeof(*sc)))
+		goto give_sigsegv;
+	if (__get_user(set.sig[0], &sc->sc_mask))
+		goto give_sigsegv;
+
+	set_current_blocked(&set);
+
+	if (restore_sigcontext(sc, regs))
+		goto give_sigsegv;
+
+	/* Send SIGTRAP if we're single-stepping: */
+	if (ptrace_cancel_bpt (current)) {
+		send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *) regs->pc,
+			       current);
+	}
+	return;
+
+give_sigsegv:
+	force_sig(SIGSEGV);
+}
+
+asmlinkage void
+do_rt_sigreturn(struct rt_sigframe __user *frame)
+{
+	struct pt_regs *regs = current_pt_regs();
+	sigset_t set;
+
+	/* Verify that it's a good ucontext_t before using it */
+	if (!access_ok(&frame->uc, sizeof(frame->uc)))
+		goto give_sigsegv;
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto give_sigsegv;
+
+	set_current_blocked(&set);
+
+	if (restore_sigcontext(&frame->uc.uc_mcontext, regs))
+		goto give_sigsegv;
+
+	/* Send SIGTRAP if we're single-stepping: */
+	if (ptrace_cancel_bpt (current)) {
+		send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *) regs->pc,
+			       current);
+	}
+	return;
+
+give_sigsegv:
+	force_sig(SIGSEGV);
+}
+
+
+/*
+ * Set up a signal frame.
+ */
+
+static inline void __user *
+get_sigframe(struct ksignal *ksig, unsigned long sp, size_t frame_size)
+{
+	return (void __user *)((sigsp(sp, ksig) - frame_size) & -32ul);
+}
+
+static long
+setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, 
+		 unsigned long mask, unsigned long sp)
+{
+	struct switch_stack *sw = (struct switch_stack *)regs - 1;
+	long i, err = 0;
+
+	err |= __put_user(on_sig_stack((unsigned long)sc), &sc->sc_onstack);
+	err |= __put_user(mask, &sc->sc_mask);
+	err |= __put_user(regs->pc, &sc->sc_pc);
+	err |= __put_user(8, &sc->sc_ps);
+
+	err |= __put_user(regs->r0 , sc->sc_regs+0);
+	err |= __put_user(regs->r1 , sc->sc_regs+1);
+	err |= __put_user(regs->r2 , sc->sc_regs+2);
+	err |= __put_user(regs->r3 , sc->sc_regs+3);
+	err |= __put_user(regs->r4 , sc->sc_regs+4);
+	err |= __put_user(regs->r5 , sc->sc_regs+5);
+	err |= __put_user(regs->r6 , sc->sc_regs+6);
+	err |= __put_user(regs->r7 , sc->sc_regs+7);
+	err |= __put_user(regs->r8 , sc->sc_regs+8);
+	err |= __put_user(sw->r9   , sc->sc_regs+9);
+	err |= __put_user(sw->r10  , sc->sc_regs+10);
+	err |= __put_user(sw->r11  , sc->sc_regs+11);
+	err |= __put_user(sw->r12  , sc->sc_regs+12);
+	err |= __put_user(sw->r13  , sc->sc_regs+13);
+	err |= __put_user(sw->r14  , sc->sc_regs+14);
+	err |= __put_user(sw->r15  , sc->sc_regs+15);
+	err |= __put_user(regs->r16, sc->sc_regs+16);
+	err |= __put_user(regs->r17, sc->sc_regs+17);
+	err |= __put_user(regs->r18, sc->sc_regs+18);
+	err |= __put_user(regs->r19, sc->sc_regs+19);
+	err |= __put_user(regs->r20, sc->sc_regs+20);
+	err |= __put_user(regs->r21, sc->sc_regs+21);
+	err |= __put_user(regs->r22, sc->sc_regs+22);
+	err |= __put_user(regs->r23, sc->sc_regs+23);
+	err |= __put_user(regs->r24, sc->sc_regs+24);
+	err |= __put_user(regs->r25, sc->sc_regs+25);
+	err |= __put_user(regs->r26, sc->sc_regs+26);
+	err |= __put_user(regs->r27, sc->sc_regs+27);
+	err |= __put_user(regs->r28, sc->sc_regs+28);
+	err |= __put_user(regs->gp , sc->sc_regs+29);
+	err |= __put_user(sp, sc->sc_regs+30);
+	err |= __put_user(0, sc->sc_regs+31);
+
+	for (i = 0; i < 31; i++)
+		err |= __put_user(sw->fp[i], sc->sc_fpregs+i);
+	err |= __put_user(0, sc->sc_fpregs+31);
+	err |= __put_user(sw->fp[31], &sc->sc_fpcr);
+
+	err |= __put_user(regs->trap_a0, &sc->sc_traparg_a0);
+	err |= __put_user(regs->trap_a1, &sc->sc_traparg_a1);
+	err |= __put_user(regs->trap_a2, &sc->sc_traparg_a2);
+
+	return err;
+}
+
+static int
+setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
+{
+	unsigned long oldsp, r26, err = 0;
+	struct sigframe __user *frame;
+
+	oldsp = rdusp();
+	frame = get_sigframe(ksig, oldsp, sizeof(*frame));
+	if (!access_ok(frame, sizeof(*frame)))
+		return -EFAULT;
+
+	err |= setup_sigcontext(&frame->sc, regs, set->sig[0], oldsp);
+	if (err)
+		return -EFAULT;
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	r26 = (unsigned long) ksig->ka.ka_restorer;
+	if (!r26) {
+		err |= __put_user(INSN_MOV_R30_R16, frame->retcode+0);
+		err |= __put_user(INSN_LDI_R0+__NR_sigreturn, frame->retcode+1);
+		err |= __put_user(INSN_CALLSYS, frame->retcode+2);
+		imb();
+		r26 = (unsigned long) frame->retcode;
+	}
+
+	/* Check that everything was written properly.  */
+	if (err)
+		return err;
+
+	/* "Return" to the handler */
+	regs->r26 = r26;
+	regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+	regs->r16 = ksig->sig;			/* a0: signal number */
+	regs->r17 = 0;				/* a1: exception code */
+	regs->r18 = (unsigned long) &frame->sc;	/* a2: sigcontext pointer */
+	wrusp((unsigned long) frame);
+	
+#if DEBUG_SIG
+	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+		current->comm, current->pid, frame, regs->pc, regs->r26);
+#endif
+	return 0;
+}
+
+static int
+setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
+{
+	unsigned long oldsp, r26, err = 0;
+	struct rt_sigframe __user *frame;
+
+	oldsp = rdusp();
+	frame = get_sigframe(ksig, oldsp, sizeof(*frame));
+	if (!access_ok(frame, sizeof(*frame)))
+		return -EFAULT;
+
+	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(0, &frame->uc.uc_link);
+	err |= __put_user(set->sig[0], &frame->uc.uc_osf_sigmask);
+	err |= __save_altstack(&frame->uc.uc_stack, oldsp);
+	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, 
+				set->sig[0], oldsp);
+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	if (err)
+		return -EFAULT;
+
+	/* Set up to return from userspace.  If provided, use a stub
+	   already in userspace.  */
+	r26 = (unsigned long) ksig->ka.ka_restorer;
+	if (!r26) {
+		err |= __put_user(INSN_MOV_R30_R16, frame->retcode+0);
+		err |= __put_user(INSN_LDI_R0+__NR_rt_sigreturn,
+				  frame->retcode+1);
+		err |= __put_user(INSN_CALLSYS, frame->retcode+2);
+		imb();
+		r26 = (unsigned long) frame->retcode;
+	}
+
+	if (err)
+		return -EFAULT;
+
+	/* "Return" to the handler */
+	regs->r26 = r26;
+	regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+	regs->r16 = ksig->sig;			  /* a0: signal number */
+	regs->r17 = (unsigned long) &frame->info; /* a1: siginfo pointer */
+	regs->r18 = (unsigned long) &frame->uc;	  /* a2: ucontext pointer */
+	wrusp((unsigned long) frame);
+
+#if DEBUG_SIG
+	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+		current->comm, current->pid, frame, regs->pc, regs->r26);
+#endif
+
+	return 0;
+}
+
+
+/*
+ * OK, we're invoking a handler.
+ */
+static inline void
+handle_signal(struct ksignal *ksig, struct pt_regs *regs)
+{
+	sigset_t *oldset = sigmask_to_save();
+	int ret;
+
+	if (ksig->ka.sa.sa_flags & SA_SIGINFO)
+		ret = setup_rt_frame(ksig, oldset, regs);
+	else
+		ret = setup_frame(ksig, oldset, regs);
+
+	signal_setup_done(ret, ksig, 0);
+}
+
+static inline void
+syscall_restart(unsigned long r0, unsigned long r19,
+		struct pt_regs *regs, struct k_sigaction *ka)
+{
+	switch (regs->r0) {
+	case ERESTARTSYS:
+		if (!(ka->sa.sa_flags & SA_RESTART)) {
+		case ERESTARTNOHAND:
+			regs->r0 = EINTR;
+			break;
+		}
+		fallthrough;
+	case ERESTARTNOINTR:
+		regs->r0 = r0;	/* reset v0 and a3 and replay syscall */
+		regs->r19 = r19;
+		regs->pc -= 4;
+		break;
+	case ERESTART_RESTARTBLOCK:
+		regs->r0 = EINTR;
+		break;
+	}
+}
+
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ *
+ * Note that we go through the signals twice: once to check the signals that
+ * the kernel can handle, and then we build all the user-level signal handling
+ * stack-frames in one go after that.
+ *
+ * "r0" and "r19" are the registers we need to restore for system call
+ * restart. "r0" is also used as an indicator whether we can restart at
+ * all (if we get here from anything but a syscall return, it will be 0)
+ */
+static void
+do_signal(struct pt_regs *regs, unsigned long r0, unsigned long r19)
+{
+	unsigned long single_stepping = ptrace_cancel_bpt(current);
+	struct ksignal ksig;
+
+	/* This lets the debugger run, ... */
+	if (get_signal(&ksig)) {
+		/* ... so re-check the single stepping. */
+		single_stepping |= ptrace_cancel_bpt(current);
+		/* Whee!  Actually deliver the signal.  */
+		if (r0)
+			syscall_restart(r0, r19, regs, &ksig.ka);
+		handle_signal(&ksig, regs);
+	} else {
+		single_stepping |= ptrace_cancel_bpt(current);
+		if (r0) {
+			switch (regs->r0) {
+			case ERESTARTNOHAND:
+			case ERESTARTSYS:
+			case ERESTARTNOINTR:
+				/* Reset v0 and a3 and replay syscall.  */
+				regs->r0 = r0;
+				regs->r19 = r19;
+				regs->pc -= 4;
+				break;
+			case ERESTART_RESTARTBLOCK:
+				/* Set v0 to the restart_syscall and replay */
+				regs->r0 = __NR_restart_syscall;
+				regs->pc -= 4;
+				break;
+			}
+		}
+		restore_saved_sigmask();
+	}
+	if (single_stepping)
+		ptrace_set_bpt(current);	/* re-set breakpoint */
+}
+
+void
+do_work_pending(struct pt_regs *regs, unsigned long thread_flags,
+		 unsigned long r0, unsigned long r19)
+{
+	do {
+		if (thread_flags & _TIF_NEED_RESCHED) {
+			schedule();
+		} else {
+			local_irq_enable();
+			if (thread_flags & (_TIF_SIGPENDING|_TIF_NOTIFY_SIGNAL)) {
+				do_signal(regs, r0, r19);
+				r0 = 0;
+			} else {
+				resume_user_mode_work(regs);
+			}
+		}
+		local_irq_disable();
+		thread_flags = read_thread_flags();
+	} while (thread_flags & _TIF_WORK_MASK);
+}
diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
new file mode 100644
index 000000000..bbbd34586
--- /dev/null
+++ b/arch/alpha/kernel/smc37c669.c
@@ -0,0 +1,2537 @@
+/*
+ * SMC 37C669 initialization code
+ */
+#include <linux/kernel.h>
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#if 0
+# define DBG_DEVS(args)         printk args
+#else
+# define DBG_DEVS(args)
+#endif
+
+#define KB              1024
+#define MB              (1024*KB)
+#define GB              (1024*MB)
+
+#define SMC_DEBUG   0
+
+/* File:	smcc669_def.h
+ *
+ * Copyright (C) 1997 by
+ * Digital Equipment Corporation, Maynard, Massachusetts.
+ * All rights reserved.
+ *
+ * This software is furnished under a license and may be used and copied
+ * only  in  accordance  of  the  terms  of  such  license  and with the
+ * inclusion of the above copyright notice. This software or  any  other
+ * copies thereof may not be provided or otherwise made available to any
+ * other person.  No title to and  ownership of the  software is  hereby
+ * transferred.
+ *
+ * The information in this software is  subject to change without notice
+ * and  should  not  be  construed  as a commitment by Digital Equipment
+ * Corporation.
+ *
+ * Digital assumes no responsibility for the use  or  reliability of its
+ * software on equipment which is not supplied by Digital.
+ *
+ *
+ * Abstract:	
+ *
+ *	This file contains header definitions for the SMC37c669 
+ *	Super I/O controller. 
+ *
+ * Author:	
+ *
+ *	Eric Rasmussen
+ *
+ * Modification History:
+ *
+ *	er	28-Jan-1997	Initial Entry
+ */
+
+#ifndef __SMC37c669_H
+#define __SMC37c669_H
+
+/*
+** Macros for handling device IRQs
+**
+** The mask acts as a flag used in mapping actual ISA IRQs (0 - 15) 
+** to device IRQs (A - H).
+*/
+#define SMC37c669_DEVICE_IRQ_MASK	0x80000000
+#define SMC37c669_DEVICE_IRQ( __i )	\
+	((SMC37c669_DEVICE_IRQ_MASK) | (__i))
+#define SMC37c669_IS_DEVICE_IRQ(__i)	\
+	(((__i) & (SMC37c669_DEVICE_IRQ_MASK)) == (SMC37c669_DEVICE_IRQ_MASK))
+#define SMC37c669_RAW_DEVICE_IRQ(__i)	\
+	((__i) & ~(SMC37c669_DEVICE_IRQ_MASK))
+
+/*
+** Macros for handling device DRQs
+**
+** The mask acts as a flag used in mapping actual ISA DMA
+** channels to device DMA channels (A - C).
+*/
+#define SMC37c669_DEVICE_DRQ_MASK	0x80000000
+#define SMC37c669_DEVICE_DRQ(__d)	\
+	((SMC37c669_DEVICE_DRQ_MASK) | (__d))
+#define SMC37c669_IS_DEVICE_DRQ(__d)	\
+	(((__d) & (SMC37c669_DEVICE_DRQ_MASK)) == (SMC37c669_DEVICE_DRQ_MASK))
+#define SMC37c669_RAW_DEVICE_DRQ(__d)	\
+	((__d) & ~(SMC37c669_DEVICE_DRQ_MASK))
+
+#define SMC37c669_DEVICE_ID	0x3
+
+/*
+** SMC37c669 Device Function Definitions
+*/
+#define SERIAL_0	0
+#define SERIAL_1	1
+#define PARALLEL_0	2
+#define FLOPPY_0	3
+#define IDE_0		4
+#define NUM_FUNCS	5
+
+/*
+** Default Device Function Mappings
+*/
+#define COM1_BASE	0x3F8
+#define COM1_IRQ	4
+#define COM2_BASE	0x2F8
+#define COM2_IRQ	3
+#define PARP_BASE	0x3BC
+#define PARP_IRQ	7
+#define PARP_DRQ	3
+#define FDC_BASE	0x3F0
+#define FDC_IRQ		6
+#define FDC_DRQ		2
+
+/*
+** Configuration On/Off Key Definitions
+*/
+#define SMC37c669_CONFIG_ON_KEY		0x55
+#define SMC37c669_CONFIG_OFF_KEY	0xAA
+
+/*
+** SMC 37c669 Device IRQs
+*/
+#define SMC37c669_DEVICE_IRQ_A	    ( SMC37c669_DEVICE_IRQ( 0x01 ) )
+#define SMC37c669_DEVICE_IRQ_B	    ( SMC37c669_DEVICE_IRQ( 0x02 ) )
+#define SMC37c669_DEVICE_IRQ_C	    ( SMC37c669_DEVICE_IRQ( 0x03 ) )
+#define SMC37c669_DEVICE_IRQ_D	    ( SMC37c669_DEVICE_IRQ( 0x04 ) )
+#define SMC37c669_DEVICE_IRQ_E	    ( SMC37c669_DEVICE_IRQ( 0x05 ) )
+#define SMC37c669_DEVICE_IRQ_F	    ( SMC37c669_DEVICE_IRQ( 0x06 ) )
+/*      SMC37c669_DEVICE_IRQ_G	    *** RESERVED ***/
+#define SMC37c669_DEVICE_IRQ_H	    ( SMC37c669_DEVICE_IRQ( 0x08 ) )
+
+/*
+** SMC 37c669 Device DMA Channel Definitions
+*/
+#define SMC37c669_DEVICE_DRQ_A		    ( SMC37c669_DEVICE_DRQ( 0x01 ) )
+#define SMC37c669_DEVICE_DRQ_B		    ( SMC37c669_DEVICE_DRQ( 0x02 ) )
+#define SMC37c669_DEVICE_DRQ_C		    ( SMC37c669_DEVICE_DRQ( 0x03 ) )
+
+/*
+** Configuration Register Index Definitions
+*/
+#define SMC37c669_CR00_INDEX	    0x00
+#define SMC37c669_CR01_INDEX	    0x01
+#define SMC37c669_CR02_INDEX	    0x02
+#define SMC37c669_CR03_INDEX	    0x03
+#define SMC37c669_CR04_INDEX	    0x04
+#define SMC37c669_CR05_INDEX	    0x05
+#define SMC37c669_CR06_INDEX	    0x06
+#define SMC37c669_CR07_INDEX	    0x07
+#define SMC37c669_CR08_INDEX	    0x08
+#define SMC37c669_CR09_INDEX	    0x09
+#define SMC37c669_CR0A_INDEX	    0x0A
+#define SMC37c669_CR0B_INDEX	    0x0B
+#define SMC37c669_CR0C_INDEX	    0x0C
+#define SMC37c669_CR0D_INDEX	    0x0D
+#define SMC37c669_CR0E_INDEX	    0x0E
+#define SMC37c669_CR0F_INDEX	    0x0F
+#define SMC37c669_CR10_INDEX	    0x10
+#define SMC37c669_CR11_INDEX	    0x11
+#define SMC37c669_CR12_INDEX	    0x12
+#define SMC37c669_CR13_INDEX	    0x13
+#define SMC37c669_CR14_INDEX	    0x14
+#define SMC37c669_CR15_INDEX	    0x15
+#define SMC37c669_CR16_INDEX	    0x16
+#define SMC37c669_CR17_INDEX	    0x17
+#define SMC37c669_CR18_INDEX	    0x18
+#define SMC37c669_CR19_INDEX	    0x19
+#define SMC37c669_CR1A_INDEX	    0x1A
+#define SMC37c669_CR1B_INDEX	    0x1B
+#define SMC37c669_CR1C_INDEX	    0x1C
+#define SMC37c669_CR1D_INDEX	    0x1D
+#define SMC37c669_CR1E_INDEX	    0x1E
+#define SMC37c669_CR1F_INDEX	    0x1F
+#define SMC37c669_CR20_INDEX	    0x20
+#define SMC37c669_CR21_INDEX	    0x21
+#define SMC37c669_CR22_INDEX	    0x22
+#define SMC37c669_CR23_INDEX	    0x23
+#define SMC37c669_CR24_INDEX	    0x24
+#define SMC37c669_CR25_INDEX	    0x25
+#define SMC37c669_CR26_INDEX	    0x26
+#define SMC37c669_CR27_INDEX	    0x27
+#define SMC37c669_CR28_INDEX	    0x28
+#define SMC37c669_CR29_INDEX	    0x29
+
+/*
+** Configuration Register Alias Definitions
+*/
+#define SMC37c669_DEVICE_ID_INDEX		    SMC37c669_CR0D_INDEX
+#define SMC37c669_DEVICE_REVISION_INDEX		    SMC37c669_CR0E_INDEX
+#define SMC37c669_FDC_BASE_ADDRESS_INDEX	    SMC37c669_CR20_INDEX
+#define SMC37c669_IDE_BASE_ADDRESS_INDEX	    SMC37c669_CR21_INDEX
+#define SMC37c669_IDE_ALTERNATE_ADDRESS_INDEX	    SMC37c669_CR22_INDEX
+#define SMC37c669_PARALLEL0_BASE_ADDRESS_INDEX	    SMC37c669_CR23_INDEX
+#define SMC37c669_SERIAL0_BASE_ADDRESS_INDEX	    SMC37c669_CR24_INDEX
+#define SMC37c669_SERIAL1_BASE_ADDRESS_INDEX	    SMC37c669_CR25_INDEX
+#define SMC37c669_PARALLEL_FDC_DRQ_INDEX	    SMC37c669_CR26_INDEX
+#define SMC37c669_PARALLEL_FDC_IRQ_INDEX	    SMC37c669_CR27_INDEX
+#define SMC37c669_SERIAL_IRQ_INDEX		    SMC37c669_CR28_INDEX
+
+/*
+** Configuration Register Definitions
+**
+** The INDEX (write only) and DATA (read/write) ports are effective 
+** only when the chip is in the Configuration State.
+*/
+typedef struct _SMC37c669_CONFIG_REGS {
+    unsigned char index_port;
+    unsigned char data_port;
+} SMC37c669_CONFIG_REGS;
+
+/*
+** CR00 - default value 0x28
+**
+**  IDE_EN (CR00<1:0>):
+**	0x - 30ua pull-ups on nIDEEN, nHDCS0, NHDCS1
+**	11 - IRQ_H available as IRQ output,
+**	     IRRX2, IRTX2 available as alternate IR pins
+**	10 - nIDEEN, nHDCS0, nHDCS1 used to control IDE
+**
+**  VALID (CR00<7>):
+**	A high level on this software controlled bit can
+**	be used to indicate that a valid configuration
+**	cycle has occurred.  The control software must
+**	take care to set this bit at the appropriate times.
+**	Set to zero after power up.  This bit has no
+**	effect on any other hardware in the chip.
+**
+*/
+typedef union _SMC37c669_CR00 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ide_en : 2;	    /* See note above		*/
+	unsigned reserved1 : 1;	    /* RAZ			*/
+	unsigned fdc_pwr : 1;	    /* 1 = supply power to FDC  */
+	unsigned reserved2 : 3;	    /* Read as 010b		*/
+	unsigned valid : 1;	    /* See note above		*/
+    }	by_field;
+} SMC37c669_CR00;
+
+/*
+** CR01 - default value 0x9C
+*/
+typedef union _SMC37c669_CR01 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned reserved1 : 2;	    /* RAZ			    */
+	unsigned ppt_pwr : 1;	    /* 1 = supply power to PPT	    */
+	unsigned ppt_mode : 1;	    /* 1 = Printer mode, 0 = EPP    */
+	unsigned reserved2 : 1;	    /* Read as 1		    */
+	unsigned reserved3 : 2;	    /* RAZ			    */
+	unsigned lock_crx: 1;	    /* Lock CR00 - CR18		    */
+    }	by_field;
+} SMC37c669_CR01;
+
+/*
+** CR02 - default value 0x88
+*/
+typedef union _SMC37c669_CR02 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned reserved1 : 3;	    /* RAZ			    */
+	unsigned uart1_pwr : 1;	    /* 1 = supply power to UART1    */
+	unsigned reserved2 : 3;	    /* RAZ			    */
+	unsigned uart2_pwr : 1;	    /* 1 = supply power to UART2    */
+    }	by_field;
+} SMC37c669_CR02;
+
+/*
+** CR03 - default value 0x78
+**
+**  CR03<7>	CR03<2>	    Pin 94
+**  -------	-------	    ------
+**     0	   X	    DRV2 (input)
+**     1	   0	    ADRX
+**     1	   1	    IRQ_B
+**
+**  CR03<6>	CR03<5>	    Op Mode
+**  -------	-------	    -------
+**     0	   0	    Model 30
+**     0	   1	    PS/2
+**     1	   0	    Reserved
+**     1	   1	    AT Mode
+*/
+typedef union _SMC37c669_CR03 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned pwrgd_gamecs : 1;  /* 1 = PWRGD, 0 = GAMECS	    */
+	unsigned fdc_mode2 : 1;	    /* 1 = Enhanced Mode 2	    */
+	unsigned pin94_0 : 1;	    /* See note above		    */
+	unsigned reserved1 : 1;	    /* RAZ			    */
+	unsigned drvden : 1;	    /* 1 = high, 0 - output	    */
+	unsigned op_mode : 2;	    /* See note above		    */
+	unsigned pin94_1 : 1;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR03;
+
+/*
+** CR04 - default value 0x00
+**
+**  PP_EXT_MODE:
+**	If CR01<PP_MODE> = 0 and PP_EXT_MODE =
+**	    00 - Standard and Bidirectional
+**	    01 - EPP mode and SPP
+**	    10 - ECP mode
+**		 In this mode, 2 drives can be supported
+**		 directly, 3 or 4 drives must use external
+**		 4 drive support.  SPP can be selected
+**		 through the ECR register of ECP as mode 000.
+**	    11 - ECP mode and EPP mode
+**		 In this mode, 2 drives can be supported
+**		 directly, 3 or 4 drives must use external
+**		 4 drive support.  SPP can be selected
+**		 through the ECR register of ECP as mode 000.
+**		 In this mode, EPP can be selected through
+**		 the ECR register of ECP as mode 100.
+**
+**  PP_FDC:
+**	00 - Normal
+**	01 - PPFD1
+**	10 - PPFD2
+**	11 - Reserved
+**
+**  MIDI1:
+**	Serial Clock Select: 
+**	    A low level on this bit disables MIDI support,
+**	    clock = divide by 13.  A high level on this 
+**	    bit enables MIDI support, clock = divide by 12.
+**
+**	MIDI operates at 31.25 Kbps which can be derived 
+**	from 125 KHz (24 MHz / 12 = 2 MHz, 2 MHz / 16 = 125 KHz)
+**
+**  ALT_IO:
+**	0 - Use pins IRRX, IRTX
+**	1 - Use pins IRRX2, IRTX2
+**
+**	If this bit is set, the IR receive and transmit
+**	functions will not be available on pins 25 and 26
+**	unless CR00<IDE_EN> = 11.
+*/
+typedef union _SMC37c669_CR04 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ppt_ext_mode : 2;  /* See note above		    */
+	unsigned ppt_fdc : 2;	    /* See note above		    */
+	unsigned midi1 : 1;	    /* See note above		    */
+	unsigned midi2 : 1;	    /* See note above		    */
+	unsigned epp_type : 1;	    /* 0 = EPP 1.9, 1 = EPP 1.7	    */
+	unsigned alt_io : 1;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR04;
+
+/*
+** CR05 - default value 0x00
+**
+**  DEN_SEL:
+**	00 - Densel output normal
+**	01 - Reserved
+**	10 - Densel output 1
+**	11 - Densel output 0
+**
+*/
+typedef union _SMC37c669_CR05 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned reserved1 : 2;	    /* RAZ					*/
+	unsigned fdc_dma_mode : 1;  /* 0 = burst, 1 = non-burst			*/
+	unsigned den_sel : 2;	    /* See note above				*/
+	unsigned swap_drv : 1;	    /* Swap the FDC motor selects		*/
+	unsigned extx4 : 1;	    /* 0 = 2 drive, 1 = external 4 drive decode	*/
+	unsigned reserved2 : 1;	    /* RAZ					*/
+    }	by_field;
+} SMC37c669_CR05;
+
+/*
+** CR06 - default value 0xFF
+*/
+typedef union _SMC37c669_CR06 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned floppy_a : 2;	    /* Type of floppy drive A	    */
+	unsigned floppy_b : 2;	    /* Type of floppy drive B	    */
+	unsigned floppy_c : 2;	    /* Type of floppy drive C	    */
+	unsigned floppy_d : 2;	    /* Type of floppy drive D	    */
+    }	by_field;
+} SMC37c669_CR06;
+
+/*
+** CR07 - default value 0x00
+**
+**  Auto Power Management CR07<7:4>:
+**	0 - Auto Powerdown disabled (default)
+**	1 - Auto Powerdown enabled
+**
+**	This bit is reset to the default state by POR or
+**	a hardware reset.
+**
+*/
+typedef union _SMC37c669_CR07 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned floppy_boot : 2;   /* 0 = A:, 1 = B:		    */
+	unsigned reserved1 : 2;	    /* RAZ			    */
+	unsigned ppt_en : 1;	    /* See note above		    */
+	unsigned uart1_en : 1;	    /* See note above		    */
+	unsigned uart2_en : 1;	    /* See note above		    */
+	unsigned fdc_en : 1;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR07;
+
+/*
+** CR08 - default value 0x00
+*/
+typedef union _SMC37c669_CR08 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 4;	    /* 0			    */
+	unsigned addrx7_4 : 4;	    /* ADR<7:3> for ADRx decode	    */
+    }	by_field;
+} SMC37c669_CR08;
+
+/*
+** CR09 - default value 0x00
+**
+**  ADRx_CONFIG:
+**	00 - ADRx disabled
+**	01 - 1 byte decode A<3:0> = 0000b
+**	10 - 8 byte block decode A<3:0> = 0XXXb
+**	11 - 16 byte block decode A<3:0> = XXXXb
+**
+*/
+typedef union _SMC37c669_CR09 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned adra8 : 3;	    /* ADR<10:8> for ADRx decode    */
+	unsigned reserved1 : 3;
+	unsigned adrx_config : 2;   /* See note above		    */
+    }	by_field;
+} SMC37c669_CR09;
+
+/*
+** CR0A - default value 0x00
+*/
+typedef union _SMC37c669_CR0A {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ecp_fifo_threshold : 4;
+	unsigned reserved1 : 4;
+    }	by_field;
+} SMC37c669_CR0A;
+
+/*
+** CR0B - default value 0x00
+*/
+typedef union _SMC37c669_CR0B {
+    unsigned char as_uchar;
+    struct {
+    	unsigned fdd0_drtx : 2;	    /* FDD0 Data Rate Table	    */
+	unsigned fdd1_drtx : 2;	    /* FDD1 Data Rate Table	    */
+	unsigned fdd2_drtx : 2;	    /* FDD2 Data Rate Table	    */
+	unsigned fdd3_drtx : 2;	    /* FDD3 Data Rate Table	    */
+    }	by_field;
+} SMC37c669_CR0B;
+
+/*
+** CR0C - default value 0x00
+**
+**  UART2_MODE:
+**	000 - Standard (default)
+**	001 - IrDA (HPSIR)
+**	010 - Amplitude Shift Keyed IR @500 KHz
+**	011 - Reserved
+**	1xx - Reserved
+**
+*/
+typedef union _SMC37c669_CR0C {
+    unsigned char as_uchar;
+    struct {
+    	unsigned uart2_rcv_polarity : 1;    /* 1 = invert RX		*/
+	unsigned uart2_xmit_polarity : 1;   /* 1 = invert TX		*/
+	unsigned uart2_duplex : 1;	    /* 1 = full, 0 = half	*/
+	unsigned uart2_mode : 3;	    /* See note above		*/
+	unsigned uart1_speed : 1;	    /* 1 = high speed enabled	*/
+	unsigned uart2_speed : 1;	    /* 1 = high speed enabled	*/
+    }	by_field;
+} SMC37c669_CR0C;
+
+/*
+** CR0D - default value 0x03
+**
+**  Device ID Register - read only
+*/
+typedef union _SMC37c669_CR0D {
+    unsigned char as_uchar;
+    struct {
+    	unsigned device_id : 8;	    /* Returns 0x3 in this field    */
+    }	by_field;
+} SMC37c669_CR0D;
+
+/*
+** CR0E - default value 0x02
+**
+**  Device Revision Register - read only
+*/
+typedef union _SMC37c669_CR0E {
+    unsigned char as_uchar;
+    struct {
+    	unsigned device_rev : 8;    /* Returns 0x2 in this field    */
+    }	by_field;
+} SMC37c669_CR0E;
+
+/*
+** CR0F - default value 0x00
+*/
+typedef union _SMC37c669_CR0F {
+    unsigned char as_uchar;
+    struct {
+    	unsigned test0 : 1;	    /* Reserved - set to 0	    */
+	unsigned test1 : 1;	    /* Reserved - set to 0	    */
+	unsigned test2 : 1;	    /* Reserved - set to 0	    */
+	unsigned test3 : 1;	    /* Reserved - set t0 0	    */
+	unsigned test4 : 1;	    /* Reserved - set to 0	    */
+	unsigned test5 : 1;	    /* Reserved - set t0 0	    */
+	unsigned test6 : 1;	    /* Reserved - set t0 0	    */
+	unsigned test7 : 1;	    /* Reserved - set to 0	    */
+    }	by_field;
+} SMC37c669_CR0F;
+
+/*
+** CR10 - default value 0x00
+*/
+typedef union _SMC37c669_CR10 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned reserved1 : 3;	     /* RAZ			    */
+	unsigned pll_gain : 1;	     /* 1 = 3V, 2 = 5V operation    */
+	unsigned pll_stop : 1;	     /* 1 = stop PLLs		    */
+	unsigned ace_stop : 1;	     /* 1 = stop UART clocks	    */
+	unsigned pll_clock_ctrl : 1; /* 0 = 14.318 MHz, 1 = 24 MHz  */
+	unsigned ir_test : 1;	     /* Enable IR test mode	    */
+    }	by_field;
+} SMC37c669_CR10;
+
+/*
+** CR11 - default value 0x00
+*/
+typedef union _SMC37c669_CR11 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ir_loopback : 1;   /* Internal IR loop back		    */
+	unsigned test_10ms : 1;	    /* Test 10ms autopowerdown FDC timeout  */
+	unsigned reserved1 : 6;	    /* RAZ				    */
+    }	by_field;
+} SMC37c669_CR11;
+
+/*
+** CR12 - CR1D are reserved registers
+*/
+
+/*
+** CR1E - default value 0x80
+**
+**  GAMECS:
+**	00 - GAMECS disabled
+**	01 - 1 byte decode ADR<3:0> = 0001b
+**	10 - 8 byte block decode ADR<3:0> = 0XXXb
+**	11 - 16 byte block decode ADR<3:0> = XXXXb
+**
+*/
+typedef union _SMC37c66_CR1E {
+    unsigned char as_uchar;
+    struct {
+    	unsigned gamecs_config: 2;   /* See note above		    */
+	unsigned gamecs_addr9_4 : 6; /* GAMECS Addr<9:4>	    */
+    }	by_field;
+} SMC37c669_CR1E;
+
+/*
+** CR1F - default value 0x00
+**
+**  DT0 DT1 DRVDEN0 DRVDEN1 Drive Type
+**  --- --- ------- ------- ----------
+**   0   0  DENSEL  DRATE0  4/2/1 MB 3.5"
+**                          2/1 MB 5.25"
+**                          2/1.6/1 MB 3.5" (3-mode)
+**   0   1  DRATE1  DRATE0
+**   1   0  nDENSEL DRATE0  PS/2
+**   1   1  DRATE0  DRATE1
+**
+**  Note: DENSEL, DRATE1, and DRATE0 map onto two output
+**	  pins - DRVDEN0 and DRVDEN1.
+**
+*/
+typedef union _SMC37c669_CR1F {
+    unsigned char as_uchar;
+    struct {
+    	unsigned fdd0_drive_type : 2;	/* FDD0 drive type	    */
+	unsigned fdd1_drive_type : 2;	/* FDD1 drive type	    */
+	unsigned fdd2_drive_type : 2;	/* FDD2 drive type	    */
+	unsigned fdd3_drive_type : 2;	/* FDD3 drive type	    */
+    }	by_field;
+} SMC37c669_CR1F;
+
+/*
+** CR20 - default value 0x3C
+**
+**  FDC Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0, A<3:0> = 0XXXb to access.
+**
+*/
+typedef union _SMC37c669_CR20 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 2;	    /* 0			    */
+	unsigned addr9_4 : 6;	    /* FDC Addr<9:4>		    */
+    }	by_field;
+} SMC37c669_CR20;
+
+/*
+** CR21 - default value 0x3C
+**
+**  IDE Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0, A<3:0> = 0XXXb to access.
+**
+*/
+typedef union _SMC37c669_CR21 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 2;	    /* 0			    */
+	unsigned addr9_4 : 6;	    /* IDE Addr<9:4>		    */
+    }	by_field;
+} SMC37c669_CR21;
+
+/*
+** CR22 - default value 0x3D
+**
+**  IDE Alternate Status Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0, A<3:0> = 0110b to access.
+**
+*/
+typedef union _SMC37c669_CR22 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 2;	    /* 0			    */
+	unsigned addr9_4 : 6;	    /* IDE Alt Status Addr<9:4>	    */
+    }	by_field;
+} SMC37c669_CR22;
+
+/*
+** CR23 - default value 0x00
+**
+**  Parallel Port Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0 to access.
+**	- If EPP is enabled, A<2:0> = XXXb to access.
+**	  If EPP is NOT enabled, A<1:0> = XXb to access
+**
+*/
+typedef union _SMC37c669_CR23 {
+    unsigned char as_uchar;
+    struct {
+	unsigned addr9_2 : 8;	    /* Parallel Port Addr<9:2>	    */
+    }	by_field;
+} SMC37c669_CR23;
+
+/*
+** CR24 - default value 0x00
+**
+**  UART1 Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0, A<2:0> = XXXb to access.
+**
+*/
+typedef union _SMC37c669_CR24 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 1;	    /* 0			    */
+	unsigned addr9_3 : 7;	    /* UART1 Addr<9:3>		    */
+    }	by_field;
+} SMC37c669_CR24;
+
+/*
+** CR25 - default value 0x00
+**
+**  UART2 Base Address Register
+**	- To disable this decode set Addr<9:8> = 0
+**	- A<10> = 0, A<2:0> = XXXb to access.
+**
+*/
+typedef union _SMC37c669_CR25 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned zero : 1;	    /* 0			    */
+	unsigned addr9_3 : 7;	    /* UART2 Addr<9:3>		    */
+    }	by_field;
+} SMC37c669_CR25;
+
+/*
+** CR26 - default value 0x00
+**
+**  Parallel Port / FDC DMA Select Register
+**
+**  D3 - D0	  DMA
+**  D7 - D4	Selected
+**  -------	--------
+**   0000	 None
+**   0001	 DMA_A
+**   0010	 DMA_B
+**   0011	 DMA_C
+**
+*/
+typedef union _SMC37c669_CR26 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ppt_drq : 4;	    /* See note above		    */
+	unsigned fdc_drq : 4;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR26;
+
+/*
+** CR27 - default value 0x00
+**
+**  Parallel Port / FDC IRQ Select Register
+**
+**  D3 - D0	  IRQ
+**  D7 - D4	Selected
+**  -------	--------
+**   0000	 None
+**   0001	 IRQ_A
+**   0010	 IRQ_B
+**   0011	 IRQ_C
+**   0100	 IRQ_D
+**   0101	 IRQ_E
+**   0110	 IRQ_F
+**   0111	 Reserved
+**   1000	 IRQ_H
+**
+**  Any unselected IRQ REQ is in tristate
+**
+*/
+typedef union _SMC37c669_CR27 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned ppt_irq : 4;	    /* See note above		    */
+	unsigned fdc_irq : 4;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR27;
+
+/*
+** CR28 - default value 0x00
+**
+**  UART IRQ Select Register
+**
+**  D3 - D0	  IRQ
+**  D7 - D4	Selected
+**  -------	--------
+**   0000	 None
+**   0001	 IRQ_A
+**   0010	 IRQ_B
+**   0011	 IRQ_C
+**   0100	 IRQ_D
+**   0101	 IRQ_E
+**   0110	 IRQ_F
+**   0111	 Reserved
+**   1000	 IRQ_H
+**   1111	 share with UART1 (only for UART2)
+**
+**  Any unselected IRQ REQ is in tristate
+**
+**  To share an IRQ between UART1 and UART2, set
+**  UART1 to use the desired IRQ and set UART2 to
+**  0xF to enable sharing mechanism.
+**
+*/
+typedef union _SMC37c669_CR28 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned uart2_irq : 4;	    /* See note above		    */
+	unsigned uart1_irq : 4;	    /* See note above		    */
+    }	by_field;
+} SMC37c669_CR28;
+
+/*
+** CR29 - default value 0x00
+**
+**  IRQIN IRQ Select Register
+**
+**  D3 - D0	  IRQ
+**  D7 - D4	Selected
+**  -------	--------
+**   0000	 None
+**   0001	 IRQ_A
+**   0010	 IRQ_B
+**   0011	 IRQ_C
+**   0100	 IRQ_D
+**   0101	 IRQ_E
+**   0110	 IRQ_F
+**   0111	 Reserved
+**   1000	 IRQ_H
+**
+**  Any unselected IRQ REQ is in tristate
+**
+*/
+typedef union _SMC37c669_CR29 {
+    unsigned char as_uchar;
+    struct {
+    	unsigned irqin_irq : 4;	    /* See note above		    */
+	unsigned reserved1 : 4;	    /* RAZ			    */
+    }	by_field;
+} SMC37c669_CR29;
+
+/*
+** Aliases of Configuration Register formats (should match
+** the set of index aliases).
+**
+** Note that CR24 and CR25 have the same format and are the
+** base address registers for UART1 and UART2.  Because of
+** this we only define 1 alias here - for CR24 - as the serial
+** base address register.
+**
+** Note that CR21 and CR22 have the same format and are the
+** base address and alternate status address registers for
+** the IDE controller.  Because of this we only define 1 alias
+** here - for CR21 - as the IDE address register.
+**
+*/
+typedef SMC37c669_CR0D SMC37c669_DEVICE_ID_REGISTER;
+typedef SMC37c669_CR0E SMC37c669_DEVICE_REVISION_REGISTER;
+typedef SMC37c669_CR20 SMC37c669_FDC_BASE_ADDRESS_REGISTER;
+typedef SMC37c669_CR21 SMC37c669_IDE_ADDRESS_REGISTER;
+typedef SMC37c669_CR23 SMC37c669_PARALLEL_BASE_ADDRESS_REGISTER;
+typedef SMC37c669_CR24 SMC37c669_SERIAL_BASE_ADDRESS_REGISTER;
+typedef SMC37c669_CR26 SMC37c669_PARALLEL_FDC_DRQ_REGISTER;
+typedef SMC37c669_CR27 SMC37c669_PARALLEL_FDC_IRQ_REGISTER;
+typedef SMC37c669_CR28 SMC37c669_SERIAL_IRQ_REGISTER;
+
+/*
+** ISA/Device IRQ Translation Table Entry Definition
+*/
+typedef struct _SMC37c669_IRQ_TRANSLATION_ENTRY {
+    int device_irq;
+    int isa_irq;
+} SMC37c669_IRQ_TRANSLATION_ENTRY;
+
+/*
+** ISA/Device DMA Translation Table Entry Definition
+*/
+typedef struct _SMC37c669_DRQ_TRANSLATION_ENTRY {
+    int device_drq;
+    int isa_drq;
+} SMC37c669_DRQ_TRANSLATION_ENTRY;
+
+/*
+** External Interface Function Prototype Declarations
+*/
+
+SMC37c669_CONFIG_REGS *SMC37c669_detect( 
+    int
+);
+
+unsigned int SMC37c669_enable_device( 
+    unsigned int func 
+);
+
+unsigned int SMC37c669_disable_device( 
+    unsigned int func 
+);
+
+unsigned int SMC37c669_configure_device( 
+    unsigned int func, 
+    int port, 
+    int irq, 
+    int drq 
+);
+
+void SMC37c669_display_device_info( 
+    void 
+);
+
+#endif	/* __SMC37c669_H */
+
+/* file:	smcc669.c
+ *
+ * Copyright (C) 1997 by
+ * Digital Equipment Corporation, Maynard, Massachusetts.
+ * All rights reserved.
+ *
+ * This software is furnished under a license and may be used and copied
+ * only  in  accordance  of  the  terms  of  such  license  and with the
+ * inclusion of the above copyright notice. This software or  any  other
+ * copies thereof may not be provided or otherwise made available to any
+ * other person.  No title to and  ownership of the  software is  hereby
+ * transferred.
+ *
+ * The information in this software is  subject to change without notice
+ * and  should  not  be  construed  as a commitment by digital equipment
+ * corporation.
+ *
+ * Digital assumes no responsibility for the use  or  reliability of its
+ * software on equipment which is not supplied by digital.
+ */
+
+/*
+ *++
+ *  FACILITY:
+ *
+ *      Alpha SRM Console Firmware
+ *
+ *  MODULE DESCRIPTION:
+ *
+ *	SMC37c669 Super I/O controller configuration routines.
+ *
+ *  AUTHORS:
+ *
+ *	Eric Rasmussen
+ *
+ *  CREATION DATE:
+ *  
+ *	28-Jan-1997
+ *
+ *  MODIFICATION HISTORY:
+ *	
+ *	er	01-May-1997	Fixed pointer conversion errors in 
+ *				SMC37c669_get_device_config().
+ *      er	28-Jan-1997	Initial version.
+ *
+ *--
+ */
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#define wb( _x_, _y_ )	outb( _y_, (unsigned int)((unsigned long)_x_) )
+#define rb( _x_ )	inb( (unsigned int)((unsigned long)_x_) )
+
+/*
+** Local storage for device configuration information.
+**
+** Since the SMC37c669 does not provide an explicit
+** mechanism for enabling/disabling individual device 
+** functions, other than unmapping the device, local 
+** storage for device configuration information is 
+** allocated here for use in implementing our own 
+** function enable/disable scheme.
+*/
+static struct DEVICE_CONFIG {
+    unsigned int port1;
+    unsigned int port2;
+    int irq;
+    int drq;
+} local_config [NUM_FUNCS];
+
+/*
+** List of all possible addresses for the Super I/O chip
+*/
+static unsigned long SMC37c669_Addresses[] __initdata =
+    {
+	0x3F0UL,	    /* Primary address	    */
+	0x370UL,	    /* Secondary address    */
+	0UL		    /* End of list	    */
+    };
+
+/*
+** Global Pointer to the Super I/O device
+*/
+static SMC37c669_CONFIG_REGS *SMC37c669 __initdata = NULL;
+
+/*
+** IRQ Translation Table
+**
+** The IRQ translation table is a list of SMC37c669 device 
+** and standard ISA IRQs.
+**
+*/
+static SMC37c669_IRQ_TRANSLATION_ENTRY *SMC37c669_irq_table __initdata; 
+
+/*
+** The following definition is for the default IRQ 
+** translation table.
+*/
+static SMC37c669_IRQ_TRANSLATION_ENTRY SMC37c669_default_irq_table[]
+__initdata = 
+    { 
+	{ SMC37c669_DEVICE_IRQ_A, -1 }, 
+	{ SMC37c669_DEVICE_IRQ_B, -1 }, 
+	{ SMC37c669_DEVICE_IRQ_C, 7 }, 
+	{ SMC37c669_DEVICE_IRQ_D, 6 }, 
+	{ SMC37c669_DEVICE_IRQ_E, 4 }, 
+	{ SMC37c669_DEVICE_IRQ_F, 3 }, 
+	{ SMC37c669_DEVICE_IRQ_H, -1 }, 
+	{ -1, -1 } /* End of table */
+    };
+
+/*
+** The following definition is for the MONET (XP1000) IRQ 
+** translation table.
+*/
+static SMC37c669_IRQ_TRANSLATION_ENTRY SMC37c669_monet_irq_table[]
+__initdata = 
+    { 
+	{ SMC37c669_DEVICE_IRQ_A, -1 }, 
+	{ SMC37c669_DEVICE_IRQ_B, -1 }, 
+	{ SMC37c669_DEVICE_IRQ_C, 6 }, 
+	{ SMC37c669_DEVICE_IRQ_D, 7 }, 
+	{ SMC37c669_DEVICE_IRQ_E, 4 }, 
+	{ SMC37c669_DEVICE_IRQ_F, 3 }, 
+	{ SMC37c669_DEVICE_IRQ_H, -1 }, 
+	{ -1, -1 } /* End of table */
+    };
+
+static SMC37c669_IRQ_TRANSLATION_ENTRY *SMC37c669_irq_tables[] __initdata =
+    {
+	SMC37c669_default_irq_table,
+	SMC37c669_monet_irq_table
+    }; 
+
+/*
+** DRQ Translation Table
+**
+** The DRQ translation table is a list of SMC37c669 device and
+** ISA DMA channels.
+**
+*/
+static SMC37c669_DRQ_TRANSLATION_ENTRY *SMC37c669_drq_table __initdata;
+
+/*
+** The following definition is the default DRQ
+** translation table.
+*/
+static SMC37c669_DRQ_TRANSLATION_ENTRY SMC37c669_default_drq_table[]
+__initdata = 
+    { 
+	{ SMC37c669_DEVICE_DRQ_A, 2 }, 
+	{ SMC37c669_DEVICE_DRQ_B, 3 }, 
+	{ SMC37c669_DEVICE_DRQ_C, -1 }, 
+	{ -1, -1 } /* End of table */
+    };
+
+/*
+** Local Function Prototype Declarations
+*/
+
+static unsigned int SMC37c669_is_device_enabled( 
+    unsigned int func 
+);
+
+#if 0
+static unsigned int SMC37c669_get_device_config( 
+    unsigned int func, 
+    int *port, 
+    int *irq, 
+    int *drq 
+);
+#endif
+
+static void SMC37c669_config_mode( 
+    unsigned int enable 
+);
+
+static unsigned char SMC37c669_read_config( 
+    unsigned char index 
+);
+
+static void SMC37c669_write_config( 
+    unsigned char index, 
+    unsigned char data 
+);
+
+static void SMC37c669_init_local_config( void );
+
+static struct DEVICE_CONFIG *SMC37c669_get_config(
+    unsigned int func
+);
+
+static int SMC37c669_xlate_irq(
+    int irq 
+);
+
+static int SMC37c669_xlate_drq(
+    int drq 
+);
+
+static  __cacheline_aligned DEFINE_SPINLOCK(smc_lock);
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function detects the presence of an SMC37c669 Super I/O
+**	controller.
+**
+**  FORMAL PARAMETERS:
+**
+**	None
+**
+**  RETURN VALUE:
+**
+**      Returns a pointer to the device if found, otherwise,
+**	the NULL pointer is returned.
+**
+**  SIDE EFFECTS:
+**
+**      None
+**
+**--
+*/
+SMC37c669_CONFIG_REGS * __init SMC37c669_detect( int index )
+{
+    int i;
+    SMC37c669_DEVICE_ID_REGISTER id;
+
+    for ( i = 0;  SMC37c669_Addresses[i] != 0;  i++ ) {
+/*
+** Initialize the device pointer even though we don't yet know if
+** the controller is at this address.  The support functions access
+** the controller through this device pointer so we need to set it
+** even when we are looking ...
+*/
+    	SMC37c669 = ( SMC37c669_CONFIG_REGS * )SMC37c669_Addresses[i];
+/*
+** Enter configuration mode
+*/
+	SMC37c669_config_mode( TRUE );
+/*
+** Read the device id
+*/
+	id.as_uchar = SMC37c669_read_config( SMC37c669_DEVICE_ID_INDEX );
+/*
+** Exit configuration mode
+*/
+	SMC37c669_config_mode( FALSE );
+/*
+** Does the device id match?  If so, assume we have found an
+** SMC37c669 controller at this address.
+*/
+	if ( id.by_field.device_id == SMC37c669_DEVICE_ID ) {
+/*
+** Initialize the IRQ and DRQ translation tables.
+*/
+    	    SMC37c669_irq_table = SMC37c669_irq_tables[ index ];
+	    SMC37c669_drq_table = SMC37c669_default_drq_table;
+/*
+** erfix
+**
+** If the platform can't use the IRQ and DRQ defaults set up in this 
+** file, it should call a platform-specific external routine at this 
+** point to reset the IRQ and DRQ translation table pointers to point 
+** at the appropriate tables for the platform.  If the defaults are 
+** acceptable, then the external routine should do nothing.
+*/
+
+/*
+** Put the chip back into configuration mode
+*/
+	    SMC37c669_config_mode( TRUE );
+/*
+** Initialize local storage for configuration information
+*/
+	    SMC37c669_init_local_config( );
+/*
+** Exit configuration mode
+*/
+	    SMC37c669_config_mode( FALSE );
+/*
+** SMC37c669 controller found, break out of search loop
+*/
+	    break;
+	}
+	else {
+/*
+** Otherwise, we did not find an SMC37c669 controller at this
+** address so set the device pointer to NULL.
+*/
+	    SMC37c669 = NULL;
+	}
+    }
+    return SMC37c669;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function enables an SMC37c669 device function.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which device function to enable
+**
+**  RETURN VALUE:
+**
+**      Returns TRUE is the device function was enabled, otherwise, FALSE
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**  DESIGN:
+**
+**      Enabling a device function in the SMC37c669 controller involves
+**	setting all of its mappings (port, irq, drq ...).  A local 
+**	"shadow" copy of the device configuration is kept so we can
+**	just set each mapping to what the local copy says.
+**
+**	This function ALWAYS updates the local shadow configuration of
+**	the device function being enabled, even if the device is always
+**	enabled.  To avoid replication of code, functions such as
+**	configure_device set up the local copy and then call this 
+**	function to the update the real device.
+**
+**--
+*/
+unsigned int __init SMC37c669_enable_device ( unsigned int func )
+{
+    unsigned int ret_val = FALSE;
+/*
+** Put the device into configuration mode
+*/
+    SMC37c669_config_mode( TRUE );
+    switch ( func ) {
+    	case SERIAL_0:
+	    {
+	    	SMC37c669_SERIAL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_SERIAL_IRQ_REGISTER irq;
+/*
+** Enable the serial 1 IRQ mapping
+*/
+	    	irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_SERIAL_IRQ_INDEX );
+
+		irq.by_field.uart1_irq =
+		    SMC37c669_RAW_DEVICE_IRQ(
+			SMC37c669_xlate_irq( local_config[ func ].irq )
+		    );
+
+		SMC37c669_write_config( SMC37c669_SERIAL_IRQ_INDEX, irq.as_uchar );
+/*
+** Enable the serial 1 port base address mapping
+*/
+		base_addr.as_uchar = 0;
+		base_addr.by_field.addr9_3 = local_config[ func ].port1 >> 3;
+
+		SMC37c669_write_config( 
+		    SMC37c669_SERIAL0_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case SERIAL_1:
+	    {
+	    	SMC37c669_SERIAL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_SERIAL_IRQ_REGISTER irq;
+/*
+** Enable the serial 2 IRQ mapping
+*/
+	    	irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_SERIAL_IRQ_INDEX );
+
+		irq.by_field.uart2_irq =
+		    SMC37c669_RAW_DEVICE_IRQ(
+			SMC37c669_xlate_irq( local_config[ func ].irq )
+		    );
+
+		SMC37c669_write_config( SMC37c669_SERIAL_IRQ_INDEX, irq.as_uchar );
+/*
+** Enable the serial 2 port base address mapping
+*/
+		base_addr.as_uchar = 0;
+		base_addr.by_field.addr9_3 = local_config[ func ].port1 >> 3;
+
+		SMC37c669_write_config( 
+		    SMC37c669_SERIAL1_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case PARALLEL_0:
+	    {
+	    	SMC37c669_PARALLEL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_PARALLEL_FDC_IRQ_REGISTER irq;
+		SMC37c669_PARALLEL_FDC_DRQ_REGISTER drq;
+/*
+** Enable the parallel port DMA channel mapping
+*/
+	    	drq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_DRQ_INDEX );
+
+		drq.by_field.ppt_drq = 
+		    SMC37c669_RAW_DEVICE_DRQ(
+			SMC37c669_xlate_drq( local_config[ func ].drq )
+		    );
+
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL_FDC_DRQ_INDEX,
+		    drq.as_uchar
+		);
+/*
+** Enable the parallel port IRQ mapping
+*/
+		irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_IRQ_INDEX );
+
+		irq.by_field.ppt_irq =
+		    SMC37c669_RAW_DEVICE_IRQ(
+			SMC37c669_xlate_irq( local_config[ func ].irq )
+		    );
+
+		SMC37c669_write_config( 
+		    SMC37c669_PARALLEL_FDC_IRQ_INDEX,
+		    irq.as_uchar
+		);
+/*
+** Enable the parallel port base address mapping
+*/
+		base_addr.as_uchar = 0;
+		base_addr.by_field.addr9_2 = local_config[ func ].port1 >> 2;
+
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL0_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case FLOPPY_0:
+	    {
+	    	SMC37c669_FDC_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_PARALLEL_FDC_IRQ_REGISTER irq;
+		SMC37c669_PARALLEL_FDC_DRQ_REGISTER drq;
+/*
+** Enable the floppy controller DMA channel mapping
+*/
+	    	drq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_DRQ_INDEX );
+		 
+		drq.by_field.fdc_drq =
+		    SMC37c669_RAW_DEVICE_DRQ(
+			SMC37c669_xlate_drq( local_config[ func ].drq )
+		    );
+		 
+		SMC37c669_write_config( 
+		    SMC37c669_PARALLEL_FDC_DRQ_INDEX,
+		    drq.as_uchar
+		);
+/*
+** Enable the floppy controller IRQ mapping
+*/
+		irq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_IRQ_INDEX );
+		 
+		irq.by_field.fdc_irq =
+		    SMC37c669_RAW_DEVICE_IRQ(
+			SMC37c669_xlate_irq( local_config[ func ].irq )
+		    );
+		 
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL_FDC_IRQ_INDEX,
+		    irq.as_uchar
+		);
+/*
+** Enable the floppy controller base address mapping
+*/
+		base_addr.as_uchar = 0;
+		base_addr.by_field.addr9_4 = local_config[ func ].port1 >> 4;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_FDC_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case IDE_0:
+	    {
+	    	SMC37c669_IDE_ADDRESS_REGISTER ide_addr;
+/*
+** Enable the IDE alternate status base address mapping
+*/
+	    	ide_addr.as_uchar = 0;
+		ide_addr.by_field.addr9_4 = local_config[ func ].port2 >> 4;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_IDE_ALTERNATE_ADDRESS_INDEX,
+		    ide_addr.as_uchar
+		);
+/*
+** Enable the IDE controller base address mapping
+*/
+		ide_addr.as_uchar = 0;
+		ide_addr.by_field.addr9_4 = local_config[ func ].port1 >> 4;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_IDE_BASE_ADDRESS_INDEX,
+		    ide_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+    }
+/*
+** Exit configuration mode and return
+*/
+    SMC37c669_config_mode( FALSE );
+
+    return ret_val;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function disables a device function within the
+**	SMC37c669 Super I/O controller.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which function to disable
+**
+**  RETURN VALUE:
+**
+**      Return TRUE if the device function was disabled, otherwise, FALSE
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**  DESIGN:
+**
+**      Disabling a function in the SMC37c669 device involves
+**	disabling all the function's mappings (port, irq, drq ...).
+**	A shadow copy of the device configuration is maintained
+**	in local storage so we won't worry aboving saving the
+**	current configuration information.
+**
+**--
+*/
+unsigned int __init SMC37c669_disable_device ( unsigned int func )
+{
+    unsigned int ret_val = FALSE;
+
+/*
+** Put the device into configuration mode
+*/
+    SMC37c669_config_mode( TRUE );
+    switch ( func ) {
+    	case SERIAL_0:
+	    {
+	    	SMC37c669_SERIAL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_SERIAL_IRQ_REGISTER irq;
+/*
+** Disable the serial 1 IRQ mapping
+*/
+	    	irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_SERIAL_IRQ_INDEX );
+
+		irq.by_field.uart1_irq = 0;
+
+		SMC37c669_write_config( SMC37c669_SERIAL_IRQ_INDEX, irq.as_uchar );
+/*
+** Disable the serial 1 port base address mapping
+*/
+		base_addr.as_uchar = 0;
+		SMC37c669_write_config( 
+		    SMC37c669_SERIAL0_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case SERIAL_1:
+	    {
+	    	SMC37c669_SERIAL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_SERIAL_IRQ_REGISTER irq;
+/*
+** Disable the serial 2 IRQ mapping
+*/
+	    	irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_SERIAL_IRQ_INDEX );
+
+		irq.by_field.uart2_irq = 0;
+
+		SMC37c669_write_config( SMC37c669_SERIAL_IRQ_INDEX, irq.as_uchar );
+/*
+** Disable the serial 2 port base address mapping
+*/
+		base_addr.as_uchar = 0;
+
+		SMC37c669_write_config( 
+		    SMC37c669_SERIAL1_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case PARALLEL_0:
+	    {
+	    	SMC37c669_PARALLEL_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_PARALLEL_FDC_IRQ_REGISTER irq;
+		SMC37c669_PARALLEL_FDC_DRQ_REGISTER drq;
+/*
+** Disable the parallel port DMA channel mapping
+*/
+	    	drq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_DRQ_INDEX );
+
+		drq.by_field.ppt_drq = 0;
+
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL_FDC_DRQ_INDEX,
+		    drq.as_uchar
+		);
+/*
+** Disable the parallel port IRQ mapping
+*/
+		irq.as_uchar = 
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_IRQ_INDEX );
+
+		irq.by_field.ppt_irq = 0;
+
+		SMC37c669_write_config( 
+		    SMC37c669_PARALLEL_FDC_IRQ_INDEX,
+		    irq.as_uchar
+		);
+/*
+** Disable the parallel port base address mapping
+*/
+		base_addr.as_uchar = 0;
+
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL0_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case FLOPPY_0:
+	    {
+	    	SMC37c669_FDC_BASE_ADDRESS_REGISTER base_addr;
+		SMC37c669_PARALLEL_FDC_IRQ_REGISTER irq;
+		SMC37c669_PARALLEL_FDC_DRQ_REGISTER drq;
+/*
+** Disable the floppy controller DMA channel mapping
+*/
+	    	drq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_DRQ_INDEX );
+		 
+		drq.by_field.fdc_drq = 0;
+		 
+		SMC37c669_write_config( 
+		    SMC37c669_PARALLEL_FDC_DRQ_INDEX,
+		    drq.as_uchar
+		);
+/*
+** Disable the floppy controller IRQ mapping
+*/
+		irq.as_uchar =
+		    SMC37c669_read_config( SMC37c669_PARALLEL_FDC_IRQ_INDEX );
+		 
+		irq.by_field.fdc_irq = 0;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_PARALLEL_FDC_IRQ_INDEX,
+		    irq.as_uchar
+		);
+/*
+** Disable the floppy controller base address mapping
+*/
+		base_addr.as_uchar = 0;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_FDC_BASE_ADDRESS_INDEX,
+		    base_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+	case IDE_0:
+	    {
+	    	SMC37c669_IDE_ADDRESS_REGISTER ide_addr;
+/*
+** Disable the IDE alternate status base address mapping
+*/
+	    	ide_addr.as_uchar = 0;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_IDE_ALTERNATE_ADDRESS_INDEX,
+		    ide_addr.as_uchar
+		);
+/*
+** Disable the IDE controller base address mapping
+*/
+		ide_addr.as_uchar = 0;
+		 
+		SMC37c669_write_config(
+		    SMC37c669_IDE_BASE_ADDRESS_INDEX,
+		    ide_addr.as_uchar
+		);
+		ret_val = TRUE;
+		break;
+	    }
+    }
+/*
+** Exit configuration mode and return
+*/
+    SMC37c669_config_mode( FALSE );
+
+    return ret_val;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function configures a device function within the 
+**	SMC37c669 Super I/O controller.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which device function
+**       
+**      port:
+**          I/O port for the function to use
+**	 
+**      irq:
+**          IRQ for the device function to use
+**	 
+**      drq:
+**          DMA channel for the device function to use
+**
+**  RETURN VALUE:
+**
+**      Returns TRUE if the device function was configured, 
+**	otherwise, FALSE.
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**  DESIGN:
+**
+**	If this function returns TRUE, the local shadow copy of
+**	the configuration is also updated.  If the device function
+**	is currently disabled, only the local shadow copy is 
+**	updated and the actual device function will be updated
+**	if/when it is enabled.
+**
+**--
+*/
+unsigned int __init SMC37c669_configure_device (
+    unsigned int func,
+    int port,
+    int irq,
+    int drq )
+{
+    struct DEVICE_CONFIG *cp;
+
+/*
+** Check for a valid configuration
+*/
+    if ( ( cp = SMC37c669_get_config ( func ) ) != NULL ) {
+/*
+** Configuration is valid, update the local shadow copy
+*/
+    	if ( ( drq & ~0xFF ) == 0 ) {
+	    cp->drq = drq;
+	}
+	if ( ( irq & ~0xFF ) == 0 ) {
+	    cp->irq = irq;
+	}
+	if ( ( port & ~0xFFFF ) == 0 ) {
+	    cp->port1 = port;
+	}
+/*
+** If the device function is enabled, update the actual
+** device configuration.
+*/
+	if ( SMC37c669_is_device_enabled( func ) ) {
+	    SMC37c669_enable_device( func );
+	}
+	return TRUE;
+    }
+    return FALSE;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function determines whether a device function
+**	within the SMC37c669 controller is enabled.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which device function
+**
+**  RETURN VALUE:
+**
+**      Returns TRUE if the device function is enabled, otherwise, FALSE
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**  DESIGN:
+**
+**      To check whether a device is enabled we will only look at 
+**	the port base address mapping.  According to the SMC37c669
+**	specification, all of the port base address mappings are
+**	disabled if the addr<9:8> (bits <7:6> of the register) are
+**	zero.
+**
+**--
+*/
+static unsigned int __init SMC37c669_is_device_enabled ( unsigned int func )
+{
+    unsigned char base_addr = 0;
+    unsigned int dev_ok = FALSE;
+    unsigned int ret_val = FALSE;
+/*
+** Enter configuration mode
+*/
+    SMC37c669_config_mode( TRUE );
+     
+    switch ( func ) {
+    	case SERIAL_0:
+	    base_addr =
+		SMC37c669_read_config( SMC37c669_SERIAL0_BASE_ADDRESS_INDEX );
+	    dev_ok = TRUE;
+	    break;
+	case SERIAL_1:
+	    base_addr =
+		SMC37c669_read_config( SMC37c669_SERIAL1_BASE_ADDRESS_INDEX );
+	    dev_ok = TRUE;
+	    break;
+	case PARALLEL_0:
+	    base_addr =
+		SMC37c669_read_config( SMC37c669_PARALLEL0_BASE_ADDRESS_INDEX );
+	    dev_ok = TRUE;
+	    break;
+	case FLOPPY_0:
+	    base_addr =
+		SMC37c669_read_config( SMC37c669_FDC_BASE_ADDRESS_INDEX );
+	    dev_ok = TRUE;
+	    break;
+	case IDE_0:
+	    base_addr =
+		SMC37c669_read_config( SMC37c669_IDE_BASE_ADDRESS_INDEX );
+	    dev_ok = TRUE;
+	    break;
+    }
+/*
+** If we have a valid device, check base_addr<7:6> to see if the
+** device is enabled (mapped).
+*/
+    if ( ( dev_ok ) && ( ( base_addr & 0xC0 ) != 0 ) ) {
+/*
+** The mapping is not disabled, so assume that the function is 
+** enabled.
+*/
+    	ret_val = TRUE;
+    }
+/*
+** Exit configuration mode 
+*/
+    SMC37c669_config_mode( FALSE );
+
+    return ret_val;
+}
+
+
+#if 0
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function retrieves the configuration information of a 
+**	device function within the SMC37c699 Super I/O controller.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which device function
+**       
+**      port:
+**          I/O port returned
+**	 
+**      irq:
+**          IRQ returned
+**	 
+**      drq:
+**          DMA channel returned
+**
+**  RETURN VALUE:
+**
+**      Returns TRUE if the device configuration was successfully
+**	retrieved, otherwise, FALSE.
+**
+**  SIDE EFFECTS:
+**
+**      The data pointed to by the port, irq, and drq parameters
+**	my be modified even if the configuration is not successfully
+**	retrieved.
+**
+**  DESIGN:
+**
+**      The device configuration is fetched from the local shadow
+**	copy.  Any unused parameters will be set to -1.  Any
+**	parameter which is not desired can specify the NULL
+**	pointer.
+**
+**--
+*/
+static unsigned int __init SMC37c669_get_device_config (
+    unsigned int func,
+    int *port,
+    int *irq,
+    int *drq )
+{
+    struct DEVICE_CONFIG *cp;
+    unsigned int ret_val = FALSE;
+/*
+** Check for a valid device configuration
+*/
+    if ( ( cp = SMC37c669_get_config( func ) ) != NULL ) {
+    	if ( drq != NULL ) {
+	    *drq = cp->drq;
+	    ret_val = TRUE;
+	}
+	if ( irq != NULL ) {
+	    *irq = cp->irq;
+	    ret_val = TRUE;
+	}
+	if ( port != NULL ) {
+	    *port = cp->port1;
+	    ret_val = TRUE;
+	}
+    }
+    return ret_val;
+}
+#endif
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function displays the current state of the SMC37c699
+**	Super I/O controller's device functions.
+**
+**  FORMAL PARAMETERS:
+**
+**      None
+**
+**  RETURN VALUE:
+**
+**      None
+**
+**  SIDE EFFECTS:
+**
+**      None
+**
+**--
+*/
+void __init SMC37c669_display_device_info ( void )
+{
+    if ( SMC37c669_is_device_enabled( SERIAL_0 ) ) {
+    	printk( "  Serial 0:    Enabled [ Port 0x%x, IRQ %d ]\n",
+		 local_config[ SERIAL_0 ].port1,
+		 local_config[ SERIAL_0 ].irq
+	);
+    }
+    else {
+    	printk( "  Serial 0:    Disabled\n" );
+    }
+
+    if ( SMC37c669_is_device_enabled( SERIAL_1 ) ) {
+    	printk( "  Serial 1:    Enabled [ Port 0x%x, IRQ %d ]\n",
+		 local_config[ SERIAL_1 ].port1,
+		 local_config[ SERIAL_1 ].irq
+	);
+    }
+    else {
+    	printk( "  Serial 1:    Disabled\n" );
+    }
+
+    if ( SMC37c669_is_device_enabled( PARALLEL_0 ) ) {
+    	printk( "  Parallel:    Enabled [ Port 0x%x, IRQ %d/%d ]\n",
+		 local_config[ PARALLEL_0 ].port1,
+		 local_config[ PARALLEL_0 ].irq,
+		 local_config[ PARALLEL_0 ].drq
+	);
+    }
+    else {
+    	printk( "  Parallel:    Disabled\n" );
+    }
+
+    if ( SMC37c669_is_device_enabled( FLOPPY_0 ) ) {
+    	printk( "  Floppy Ctrl: Enabled [ Port 0x%x, IRQ %d/%d ]\n",
+		 local_config[ FLOPPY_0 ].port1,
+		 local_config[ FLOPPY_0 ].irq,
+		 local_config[ FLOPPY_0 ].drq
+	);
+    }
+    else {
+    	printk( "  Floppy Ctrl: Disabled\n" );
+    }
+
+    if ( SMC37c669_is_device_enabled( IDE_0 ) ) {
+    	printk( "  IDE 0:       Enabled [ Port 0x%x, IRQ %d ]\n",
+		 local_config[ IDE_0 ].port1,
+		 local_config[ IDE_0 ].irq
+	);
+    }
+    else {
+    	printk( "  IDE 0:       Disabled\n" );
+    }
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function puts the SMC37c669 Super I/O controller into,
+**	and takes it out of, configuration mode.
+**
+**  FORMAL PARAMETERS:
+**
+**      enable:
+**          TRUE to enter configuration mode, FALSE to exit.
+**
+**  RETURN VALUE:
+**
+**      None
+**
+**  SIDE EFFECTS:
+**
+**      The SMC37c669 controller may be left in configuration mode.
+**
+**--
+*/
+static void __init SMC37c669_config_mode( 
+    unsigned int enable )
+{
+    if ( enable ) {
+/*
+** To enter configuration mode, two writes in succession to the index
+** port are required.  If a write to another address or port occurs
+** between these two writes, the chip does not enter configuration
+** mode.  Therefore, a spinlock is placed around the two writes to 
+** guarantee that they complete uninterrupted.
+*/
+	spin_lock(&smc_lock);
+    	wb( &SMC37c669->index_port, SMC37c669_CONFIG_ON_KEY );
+    	wb( &SMC37c669->index_port, SMC37c669_CONFIG_ON_KEY );
+	spin_unlock(&smc_lock);
+    }
+    else {
+    	wb( &SMC37c669->index_port, SMC37c669_CONFIG_OFF_KEY );
+    }
+}
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function reads an SMC37c669 Super I/O controller
+**	configuration register.  This function assumes that the
+**	device is already in configuration mode.
+**
+**  FORMAL PARAMETERS:
+**
+**      index:
+**          Index value of configuration register to read
+**
+**  RETURN VALUE:
+**
+**      Data read from configuration register
+**
+**  SIDE EFFECTS:
+**
+**      None
+**
+**--
+*/
+static unsigned char __init SMC37c669_read_config( 
+    unsigned char index )
+{
+	wb(&SMC37c669->index_port, index);
+	return rb(&SMC37c669->data_port);
+}
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function writes an SMC37c669 Super I/O controller
+**	configuration register.  This function assumes that the
+**	device is already in configuration mode.
+**
+**  FORMAL PARAMETERS:
+**
+**      index:
+**          Index of configuration register to write
+**       
+**      data:
+**          Data to be written
+**
+**  RETURN VALUE:
+**
+**      None
+**
+**  SIDE EFFECTS:
+**
+**      None
+**
+**--
+*/
+static void __init SMC37c669_write_config( 
+    unsigned char index, 
+    unsigned char data )
+{
+    wb( &SMC37c669->index_port, index );
+    wb( &SMC37c669->data_port, data );
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function initializes the local device
+**	configuration storage.  This function assumes
+**	that the device is already in configuration
+**	mode.
+**
+**  FORMAL PARAMETERS:
+**
+**      None
+**
+**  RETURN VALUE:
+**
+**      None
+**
+**  SIDE EFFECTS:
+**
+**      Local storage for device configuration information
+**	is initialized.
+**
+**--
+*/
+static void __init SMC37c669_init_local_config ( void )
+{
+    SMC37c669_SERIAL_BASE_ADDRESS_REGISTER uart_base;
+    SMC37c669_SERIAL_IRQ_REGISTER uart_irqs;
+    SMC37c669_PARALLEL_BASE_ADDRESS_REGISTER ppt_base;
+    SMC37c669_PARALLEL_FDC_IRQ_REGISTER ppt_fdc_irqs;
+    SMC37c669_PARALLEL_FDC_DRQ_REGISTER ppt_fdc_drqs;
+    SMC37c669_FDC_BASE_ADDRESS_REGISTER fdc_base;
+    SMC37c669_IDE_ADDRESS_REGISTER ide_base;
+    SMC37c669_IDE_ADDRESS_REGISTER ide_alt;
+
+/*
+** Get serial port 1 base address 
+*/
+    uart_base.as_uchar = 
+	SMC37c669_read_config( SMC37c669_SERIAL0_BASE_ADDRESS_INDEX );
+/*
+** Get IRQs for serial ports 1 & 2
+*/
+    uart_irqs.as_uchar = 
+	SMC37c669_read_config( SMC37c669_SERIAL_IRQ_INDEX );
+/*
+** Store local configuration information for serial port 1
+*/
+    local_config[SERIAL_0].port1 = uart_base.by_field.addr9_3 << 3;
+    local_config[SERIAL_0].irq = 
+	SMC37c669_xlate_irq( 
+	    SMC37c669_DEVICE_IRQ( uart_irqs.by_field.uart1_irq ) 
+	);
+/*
+** Get serial port 2 base address
+*/
+    uart_base.as_uchar = 
+	SMC37c669_read_config( SMC37c669_SERIAL1_BASE_ADDRESS_INDEX );
+/*
+** Store local configuration information for serial port 2
+*/
+    local_config[SERIAL_1].port1 = uart_base.by_field.addr9_3 << 3;
+    local_config[SERIAL_1].irq = 
+	SMC37c669_xlate_irq( 
+	    SMC37c669_DEVICE_IRQ( uart_irqs.by_field.uart2_irq ) 
+	);
+/*
+** Get parallel port base address
+*/
+    ppt_base.as_uchar =
+	SMC37c669_read_config( SMC37c669_PARALLEL0_BASE_ADDRESS_INDEX );
+/*
+** Get IRQs for parallel port and floppy controller
+*/
+    ppt_fdc_irqs.as_uchar =
+	SMC37c669_read_config( SMC37c669_PARALLEL_FDC_IRQ_INDEX );
+/*
+** Get DRQs for parallel port and floppy controller
+*/
+    ppt_fdc_drqs.as_uchar =
+	SMC37c669_read_config( SMC37c669_PARALLEL_FDC_DRQ_INDEX );
+/*
+** Store local configuration information for parallel port
+*/
+    local_config[PARALLEL_0].port1 = ppt_base.by_field.addr9_2 << 2;
+    local_config[PARALLEL_0].irq =
+	SMC37c669_xlate_irq(
+	    SMC37c669_DEVICE_IRQ( ppt_fdc_irqs.by_field.ppt_irq )
+	);
+    local_config[PARALLEL_0].drq =
+	SMC37c669_xlate_drq(
+	    SMC37c669_DEVICE_DRQ( ppt_fdc_drqs.by_field.ppt_drq )
+	);
+/*
+** Get floppy controller base address
+*/
+    fdc_base.as_uchar = 
+	SMC37c669_read_config( SMC37c669_FDC_BASE_ADDRESS_INDEX );
+/*
+** Store local configuration information for floppy controller
+*/
+    local_config[FLOPPY_0].port1 = fdc_base.by_field.addr9_4 << 4;
+    local_config[FLOPPY_0].irq =
+	SMC37c669_xlate_irq(
+	    SMC37c669_DEVICE_IRQ( ppt_fdc_irqs.by_field.fdc_irq )
+	);
+    local_config[FLOPPY_0].drq =
+	SMC37c669_xlate_drq(
+	    SMC37c669_DEVICE_DRQ( ppt_fdc_drqs.by_field.fdc_drq )
+	);
+/*
+** Get IDE controller base address
+*/
+    ide_base.as_uchar =
+	SMC37c669_read_config( SMC37c669_IDE_BASE_ADDRESS_INDEX );
+/*
+** Get IDE alternate status base address
+*/
+    ide_alt.as_uchar =
+	SMC37c669_read_config( SMC37c669_IDE_ALTERNATE_ADDRESS_INDEX );
+/*
+** Store local configuration information for IDE controller
+*/
+    local_config[IDE_0].port1 = ide_base.by_field.addr9_4 << 4;
+    local_config[IDE_0].port2 = ide_alt.by_field.addr9_4 << 4;
+    local_config[IDE_0].irq = 14;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function returns a pointer to the local shadow
+**	configuration of the requested device function.
+**
+**  FORMAL PARAMETERS:
+**
+**      func:
+**          Which device function
+**
+**  RETURN VALUE:
+**
+**      Returns a pointer to the DEVICE_CONFIG structure for the
+**	requested function, otherwise, NULL.
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**--
+*/
+static struct DEVICE_CONFIG * __init SMC37c669_get_config( unsigned int func )
+{
+    struct DEVICE_CONFIG *cp = NULL;
+
+    switch ( func ) {
+    	case SERIAL_0:
+	    cp = &local_config[ SERIAL_0 ];
+	    break;
+	case SERIAL_1:
+	    cp = &local_config[ SERIAL_1 ];
+	    break;
+	case PARALLEL_0:
+	    cp = &local_config[ PARALLEL_0 ];
+	    break;
+	case FLOPPY_0:
+	    cp = &local_config[ FLOPPY_0 ];
+	    break;
+	case IDE_0:
+	    cp = &local_config[ IDE_0 ];
+	    break;
+    }
+    return cp;
+}
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function translates IRQs back and forth between ISA
+**	IRQs and SMC37c669 device IRQs.
+**
+**  FORMAL PARAMETERS:
+**
+**      irq:
+**          The IRQ to translate
+**
+**  RETURN VALUE:
+**
+**      Returns the translated IRQ, otherwise, returns -1.
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**--
+*/
+static int __init SMC37c669_xlate_irq ( int irq )
+{
+    int i, translated_irq = -1;
+
+    if ( SMC37c669_IS_DEVICE_IRQ( irq ) ) {
+/*
+** We are translating a device IRQ to an ISA IRQ
+*/
+    	for ( i = 0; ( SMC37c669_irq_table[i].device_irq != -1 ) || ( SMC37c669_irq_table[i].isa_irq != -1 ); i++ ) {
+	    if ( irq == SMC37c669_irq_table[i].device_irq ) {
+	    	translated_irq = SMC37c669_irq_table[i].isa_irq;
+		break;
+	    }
+	}
+    }
+    else {
+/*
+** We are translating an ISA IRQ to a device IRQ
+*/
+    	for ( i = 0; ( SMC37c669_irq_table[i].isa_irq != -1 ) || ( SMC37c669_irq_table[i].device_irq != -1 ); i++ ) {
+	    if ( irq == SMC37c669_irq_table[i].isa_irq ) {
+	    	translated_irq = SMC37c669_irq_table[i].device_irq;
+		break;
+	    }
+	}
+    }
+    return translated_irq;
+}
+
+
+/*
+**++
+**  FUNCTIONAL DESCRIPTION:
+**
+**      This function translates DMA channels back and forth between
+**	ISA DMA channels and SMC37c669 device DMA channels.
+**
+**  FORMAL PARAMETERS:
+**
+**      drq:
+**          The DMA channel to translate
+**
+**  RETURN VALUE:
+**
+**      Returns the translated DMA channel, otherwise, returns -1
+**
+**  SIDE EFFECTS:
+**
+**      {@description or none@}
+**
+**--
+*/
+static int __init SMC37c669_xlate_drq ( int drq )
+{
+    int i, translated_drq = -1;
+
+    if ( SMC37c669_IS_DEVICE_DRQ( drq ) ) {
+/*
+** We are translating a device DMA channel to an ISA DMA channel
+*/
+    	for ( i = 0; ( SMC37c669_drq_table[i].device_drq != -1 ) || ( SMC37c669_drq_table[i].isa_drq != -1 ); i++ ) {
+	    if ( drq == SMC37c669_drq_table[i].device_drq ) {
+	    	translated_drq = SMC37c669_drq_table[i].isa_drq;
+		break;
+	    }
+	}
+    }
+    else {
+/*
+** We are translating an ISA DMA channel to a device DMA channel
+*/
+    	for ( i = 0; ( SMC37c669_drq_table[i].isa_drq != -1 ) || ( SMC37c669_drq_table[i].device_drq != -1 ); i++ ) {
+	    if ( drq == SMC37c669_drq_table[i].isa_drq ) {
+	    	translated_drq = SMC37c669_drq_table[i].device_drq;
+		break;
+	    }
+	}
+    }
+    return translated_drq;
+}
+
+#if 0
+int __init smcc669_init ( void )
+{
+    struct INODE *ip;
+
+    allocinode( smc_ddb.name, 1, &ip );
+    ip->dva = &smc_ddb;
+    ip->attr = ATTR$M_WRITE | ATTR$M_READ;
+    ip->len[0] = 0x30;
+    ip->misc = 0;
+    INODE_UNLOCK( ip );
+
+    return msg_success;
+}
+
+int __init smcc669_open( struct FILE *fp, char *info, char *next, char *mode )
+{
+    struct INODE *ip;
+/*
+** Allow multiple readers but only one writer.  ip->misc keeps track
+** of the number of writers
+*/
+    ip = fp->ip;
+    INODE_LOCK( ip );
+    if ( fp->mode & ATTR$M_WRITE ) {
+	if ( ip->misc ) {
+	    INODE_UNLOCK( ip );
+	    return msg_failure;	    /* too many writers */
+	}
+	ip->misc++;
+    }
+/*
+** Treat the information field as a byte offset
+*/
+    *fp->offset = xtoi( info );
+    INODE_UNLOCK( ip );
+
+    return msg_success;
+}
+
+int __init smcc669_close( struct FILE *fp )
+{
+    struct INODE *ip;
+
+    ip = fp->ip;
+    if ( fp->mode & ATTR$M_WRITE ) {
+	INODE_LOCK( ip );
+	ip->misc--;
+	INODE_UNLOCK( ip );
+    }
+    return msg_success;
+}
+
+int __init smcc669_read( struct FILE *fp, int size, int number, unsigned char *buf )
+{
+    int i;
+    int length;
+    int nbytes;
+    struct INODE *ip;
+
+/*
+** Always access a byte at a time
+*/
+    ip = fp->ip;
+    length = size * number;
+    nbytes = 0;
+
+    SMC37c669_config_mode( TRUE );
+    for ( i = 0; i < length; i++ ) {
+	if ( !inrange( *fp->offset, 0, ip->len[0] ) ) 
+	    break;
+	*buf++ = SMC37c669_read_config( *fp->offset );
+	*fp->offset += 1;
+	nbytes++;
+    }
+    SMC37c669_config_mode( FALSE );
+    return nbytes;
+}
+
+int __init smcc669_write( struct FILE *fp, int size, int number, unsigned char *buf )
+{
+    int i;
+    int length;
+    int nbytes;
+    struct INODE *ip;
+/*
+** Always access a byte at a time
+*/
+    ip = fp->ip;
+    length = size * number;
+    nbytes = 0;
+
+    SMC37c669_config_mode( TRUE );
+    for ( i = 0; i < length; i++ ) {
+	if ( !inrange( *fp->offset, 0, ip->len[0] ) ) 
+	    break;
+	SMC37c669_write_config( *fp->offset, *buf );
+	*fp->offset += 1;
+	buf++;
+	nbytes++;
+    }
+    SMC37c669_config_mode( FALSE );
+    return nbytes;
+}
+#endif
+
+void __init
+SMC37c669_dump_registers(void)
+{
+  int i;
+  for (i = 0; i <= 0x29; i++)
+    printk("-- CR%02x : %02x\n", i, SMC37c669_read_config(i));
+}
+/*+
+ * ============================================================================
+ * = SMC_init - SMC37c669 Super I/O controller initialization                 =
+ * ============================================================================
+ *
+ * OVERVIEW:
+ *
+ *      This routine configures and enables device functions on the
+ *      SMC37c669 Super I/O controller.
+ *
+ * FORM OF CALL:
+ *
+ *      SMC_init( );
+ *
+ * RETURNS:
+ *
+ *      Nothing
+ *
+ * ARGUMENTS:
+ *
+ *      None
+ *
+ * SIDE EFFECTS:
+ *
+ *      None
+ *
+ */
+void __init SMC669_Init ( int index )
+{
+    SMC37c669_CONFIG_REGS *SMC_base;
+    unsigned long flags;
+
+    local_irq_save(flags);
+    if ( ( SMC_base = SMC37c669_detect( index ) ) != NULL ) {
+#if SMC_DEBUG
+	SMC37c669_config_mode( TRUE );
+	SMC37c669_dump_registers( );
+	SMC37c669_config_mode( FALSE );
+        SMC37c669_display_device_info( );
+#endif
+        SMC37c669_disable_device( SERIAL_0 );
+        SMC37c669_configure_device(
+            SERIAL_0,
+            COM1_BASE,
+            COM1_IRQ,
+            -1
+        );
+        SMC37c669_enable_device( SERIAL_0 );
+
+        SMC37c669_disable_device( SERIAL_1 );
+        SMC37c669_configure_device(
+            SERIAL_1,
+            COM2_BASE,
+            COM2_IRQ,
+            -1
+        );
+        SMC37c669_enable_device( SERIAL_1 );
+
+        SMC37c669_disable_device( PARALLEL_0 );
+        SMC37c669_configure_device(
+            PARALLEL_0,
+            PARP_BASE,
+            PARP_IRQ,
+            PARP_DRQ
+        );
+        SMC37c669_enable_device( PARALLEL_0 );
+
+        SMC37c669_disable_device( FLOPPY_0 );
+        SMC37c669_configure_device(
+            FLOPPY_0,
+            FDC_BASE,
+            FDC_IRQ,
+            FDC_DRQ
+        );
+        SMC37c669_enable_device( FLOPPY_0 );
+          
+	/* Wake up sometimes forgotten floppy, especially on DP264. */
+	outb(0xc, 0x3f2);
+
+        SMC37c669_disable_device( IDE_0 );
+
+#if SMC_DEBUG
+	SMC37c669_config_mode( TRUE );
+	SMC37c669_dump_registers( );
+	SMC37c669_config_mode( FALSE );
+        SMC37c669_display_device_info( );
+#endif
+	local_irq_restore(flags);
+        printk( "SMC37c669 Super I/O Controller found @ 0x%p\n",
+		SMC_base );
+    }
+    else {
+	local_irq_restore(flags);
+#if SMC_DEBUG
+        printk( "No SMC37c669 Super I/O Controller found\n" );
+#endif
+    }
+}
diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c
new file mode 100644
index 000000000..71cd7aca3
--- /dev/null
+++ b/arch/alpha/kernel/smc37c93x.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SMC 37C93X initialization code
+ */
+
+#include <linux/kernel.h>
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#define SMC_DEBUG 0
+
+#if SMC_DEBUG
+# define DBG_DEVS(args)         printk args
+#else
+# define DBG_DEVS(args)
+#endif
+
+#define KB              1024
+#define MB              (1024*KB)
+#define GB              (1024*MB)
+
+/* device "activate" register contents */
+#define DEVICE_ON		1
+#define DEVICE_OFF		0
+
+/* configuration on/off keys */
+#define CONFIG_ON_KEY		0x55
+#define CONFIG_OFF_KEY		0xaa
+
+/* configuration space device definitions */
+#define FDC			0
+#define IDE1			1
+#define IDE2			2
+#define PARP			3
+#define SER1			4
+#define SER2			5
+#define RTCL			6
+#define KYBD			7
+#define AUXIO			8
+
+/* Chip register offsets from base */
+#define CONFIG_CONTROL		0x02
+#define INDEX_ADDRESS		0x03
+#define LOGICAL_DEVICE_NUMBER	0x07
+#define DEVICE_ID		0x20
+#define DEVICE_REV		0x21
+#define POWER_CONTROL		0x22
+#define POWER_MGMT		0x23
+#define OSC			0x24
+
+#define ACTIVATE		0x30
+#define ADDR_HI			0x60
+#define ADDR_LO			0x61
+#define INTERRUPT_SEL		0x70
+#define INTERRUPT_SEL_2		0x72 /* KYBD/MOUS only */
+#define DMA_CHANNEL_SEL		0x74 /* FDC/PARP only */
+
+#define FDD_MODE_REGISTER	0x90
+#define FDD_OPTION_REGISTER	0x91
+
+/* values that we read back that are expected ... */
+#define VALID_DEVICE_ID		2
+
+/* default device addresses */
+#define KYBD_INTERRUPT		1
+#define MOUS_INTERRUPT		12
+#define COM2_BASE		0x2f8
+#define COM2_INTERRUPT		3
+#define COM1_BASE		0x3f8
+#define COM1_INTERRUPT		4
+#define PARP_BASE		0x3bc
+#define PARP_INTERRUPT		7
+
+static unsigned long __init SMCConfigState(unsigned long baseAddr)
+{
+	unsigned char devId;
+
+	unsigned long configPort;
+	unsigned long indexPort;
+	unsigned long dataPort;
+
+	int i;
+
+	configPort = indexPort = baseAddr;
+	dataPort = configPort + 1;
+
+#define NUM_RETRIES 5
+
+	for (i = 0; i < NUM_RETRIES; i++)
+	{
+		outb(CONFIG_ON_KEY, configPort);
+		outb(CONFIG_ON_KEY, configPort);
+		outb(DEVICE_ID, indexPort);
+		devId = inb(dataPort);
+		if (devId == VALID_DEVICE_ID) {
+			outb(DEVICE_REV, indexPort);
+			/* unsigned char devRev = */ inb(dataPort);
+			break;
+		}
+		else
+			udelay(100);
+	}
+	return (i != NUM_RETRIES) ? baseAddr : 0L;
+}
+
+static void __init SMCRunState(unsigned long baseAddr)
+{
+	outb(CONFIG_OFF_KEY, baseAddr);
+}
+
+static unsigned long __init SMCDetectUltraIO(void)
+{
+	unsigned long baseAddr;
+
+	baseAddr = 0x3F0;
+	if ( ( baseAddr = SMCConfigState( baseAddr ) ) == 0x3F0 ) {
+		return( baseAddr );
+	}
+	baseAddr = 0x370;
+	if ( ( baseAddr = SMCConfigState( baseAddr ) ) == 0x370 ) {
+		return( baseAddr );
+	}
+	return( ( unsigned long )0 );
+}
+
+static void __init SMCEnableDevice(unsigned long baseAddr,
+			    unsigned long device,
+			    unsigned long portaddr,
+			    unsigned long interrupt)
+{
+	unsigned long indexPort;
+	unsigned long dataPort;
+
+	indexPort = baseAddr;
+	dataPort = baseAddr + 1;
+
+	outb(LOGICAL_DEVICE_NUMBER, indexPort);
+	outb(device, dataPort);
+
+	outb(ADDR_LO, indexPort);
+	outb(( portaddr & 0xFF ), dataPort);
+
+	outb(ADDR_HI, indexPort);
+	outb((portaddr >> 8) & 0xFF, dataPort);
+
+	outb(INTERRUPT_SEL, indexPort);
+	outb(interrupt, dataPort);
+
+	outb(ACTIVATE, indexPort);
+	outb(DEVICE_ON, dataPort);
+}
+
+static void __init SMCEnableKYBD(unsigned long baseAddr)
+{
+	unsigned long indexPort;
+	unsigned long dataPort;
+
+	indexPort = baseAddr;
+	dataPort = baseAddr + 1;
+
+	outb(LOGICAL_DEVICE_NUMBER, indexPort);
+	outb(KYBD, dataPort);
+
+	outb(INTERRUPT_SEL, indexPort); /* Primary interrupt select */
+	outb(KYBD_INTERRUPT, dataPort);
+
+	outb(INTERRUPT_SEL_2, indexPort); /* Secondary interrupt select */
+	outb(MOUS_INTERRUPT, dataPort);
+
+	outb(ACTIVATE, indexPort);
+	outb(DEVICE_ON, dataPort);
+}
+
+static void __init SMCEnableFDC(unsigned long baseAddr)
+{
+	unsigned long indexPort;
+	unsigned long dataPort;
+
+	unsigned char oldValue;
+
+	indexPort = baseAddr;
+	dataPort = baseAddr + 1;
+
+	outb(LOGICAL_DEVICE_NUMBER, indexPort);
+	outb(FDC, dataPort);
+
+	outb(FDD_MODE_REGISTER, indexPort);
+	oldValue = inb(dataPort);
+
+	oldValue |= 0x0E;                   /* Enable burst mode */
+	outb(oldValue, dataPort);
+
+	outb(INTERRUPT_SEL, indexPort);	    /* Primary interrupt select */
+	outb(0x06, dataPort );
+
+	outb(DMA_CHANNEL_SEL, indexPort);   /* DMA channel select */
+	outb(0x02, dataPort);
+
+	outb(ACTIVATE, indexPort);
+	outb(DEVICE_ON, dataPort);
+}
+
+#if SMC_DEBUG
+static void __init SMCReportDeviceStatus(unsigned long baseAddr)
+{
+	unsigned long indexPort;
+	unsigned long dataPort;
+	unsigned char currentControl;
+
+	indexPort = baseAddr;
+	dataPort = baseAddr + 1;
+
+	outb(POWER_CONTROL, indexPort);
+	currentControl = inb(dataPort);
+
+	printk(currentControl & (1 << FDC)
+	       ? "\t+FDC Enabled\n" : "\t-FDC Disabled\n");
+	printk(currentControl & (1 << IDE1)
+	       ? "\t+IDE1 Enabled\n" : "\t-IDE1 Disabled\n");
+	printk(currentControl & (1 << IDE2)
+	       ? "\t+IDE2 Enabled\n" : "\t-IDE2 Disabled\n");
+	printk(currentControl & (1 << PARP)
+	       ? "\t+PARP Enabled\n" : "\t-PARP Disabled\n");
+	printk(currentControl & (1 << SER1)
+	       ? "\t+SER1 Enabled\n" : "\t-SER1 Disabled\n");
+	printk(currentControl & (1 << SER2)
+	       ? "\t+SER2 Enabled\n" : "\t-SER2 Disabled\n");
+
+	printk( "\n" );
+}
+#endif
+
+int __init SMC93x_Init(void)
+{
+	unsigned long SMCUltraBase;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if ((SMCUltraBase = SMCDetectUltraIO()) != 0UL) {
+#if SMC_DEBUG
+		SMCReportDeviceStatus(SMCUltraBase);
+#endif
+		SMCEnableDevice(SMCUltraBase, SER1, COM1_BASE, COM1_INTERRUPT);
+		DBG_DEVS(("SMC FDC37C93X: SER1 done\n"));
+		SMCEnableDevice(SMCUltraBase, SER2, COM2_BASE, COM2_INTERRUPT);
+		DBG_DEVS(("SMC FDC37C93X: SER2 done\n"));
+		SMCEnableDevice(SMCUltraBase, PARP, PARP_BASE, PARP_INTERRUPT);
+		DBG_DEVS(("SMC FDC37C93X: PARP done\n"));
+		/* On PC164, IDE on the SMC is not enabled;
+		   CMD646 (PCI) on MB */
+		SMCEnableKYBD(SMCUltraBase);
+		DBG_DEVS(("SMC FDC37C93X: KYB done\n"));
+		SMCEnableFDC(SMCUltraBase);
+		DBG_DEVS(("SMC FDC37C93X: FDC done\n"));
+#if SMC_DEBUG
+		SMCReportDeviceStatus(SMCUltraBase);
+#endif
+		SMCRunState(SMCUltraBase);
+		local_irq_restore(flags);
+		printk("SMC FDC37C93X Ultra I/O Controller found @ 0x%lx\n",
+		       SMCUltraBase);
+		return 1;
+	}
+	else {
+		local_irq_restore(flags);
+		DBG_DEVS(("No SMC FDC37C93X Ultra I/O Controller found\n"));
+		return 0;
+	}
+}
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
new file mode 100644
index 000000000..f4e20f754
--- /dev/null
+++ b/arch/alpha/kernel/smp.c
@@ -0,0 +1,762 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/smp.c
+ *
+ *      2001-07-09 Phil Ezolt (Phillip.Ezolt@compaq.com)
+ *            Renamed modified smp_call_function to smp_call_function_on_cpu()
+ *            Created an function that conforms to the old calling convention
+ *            of smp_call_function().
+ *
+ *            This is helpful for DCPI.
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/sched/mm.h>
+#include <linux/mm.h>
+#include <linux/err.h>
+#include <linux/threads.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/irq.h>
+#include <linux/cache.h>
+#include <linux/profile.h>
+#include <linux/bitops.h>
+#include <linux/cpu.h>
+
+#include <asm/hwrpb.h>
+#include <asm/ptrace.h>
+#include <linux/atomic.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+
+#define DEBUG_SMP 0
+#if DEBUG_SMP
+#define DBGS(args)	printk args
+#else
+#define DBGS(args)
+#endif
+
+/* A collection of per-processor data.  */
+struct cpuinfo_alpha cpu_data[NR_CPUS];
+EXPORT_SYMBOL(cpu_data);
+
+/* A collection of single bit ipi messages.  */
+static struct {
+	unsigned long bits ____cacheline_aligned;
+} ipi_data[NR_CPUS] __cacheline_aligned;
+
+enum ipi_message_type {
+	IPI_RESCHEDULE,
+	IPI_CALL_FUNC,
+	IPI_CPU_STOP,
+};
+
+/* Set to a secondary's cpuid when it comes online.  */
+static int smp_secondary_alive = 0;
+
+int smp_num_probed;		/* Internal processor count */
+int smp_num_cpus = 1;		/* Number that came online.  */
+EXPORT_SYMBOL(smp_num_cpus);
+
+/*
+ * Called by both boot and secondaries to move global data into
+ *  per-processor storage.
+ */
+static inline void __init
+smp_store_cpu_info(int cpuid)
+{
+	cpu_data[cpuid].loops_per_jiffy = loops_per_jiffy;
+	cpu_data[cpuid].last_asn = ASN_FIRST_VERSION;
+	cpu_data[cpuid].need_new_asn = 0;
+	cpu_data[cpuid].asn_lock = 0;
+}
+
+/*
+ * Ideally sets up per-cpu profiling hooks.  Doesn't do much now...
+ */
+static inline void __init
+smp_setup_percpu_timer(int cpuid)
+{
+	cpu_data[cpuid].prof_counter = 1;
+	cpu_data[cpuid].prof_multiplier = 1;
+}
+
+static void __init
+wait_boot_cpu_to_stop(int cpuid)
+{
+	unsigned long stop = jiffies + 10*HZ;
+
+	while (time_before(jiffies, stop)) {
+	        if (!smp_secondary_alive)
+			return;
+		barrier();
+	}
+
+	printk("wait_boot_cpu_to_stop: FAILED on CPU %d, hanging now\n", cpuid);
+	for (;;)
+		barrier();
+}
+
+/*
+ * Where secondaries begin a life of C.
+ */
+void __init
+smp_callin(void)
+{
+	int cpuid = hard_smp_processor_id();
+
+	if (cpu_online(cpuid)) {
+		printk("??, cpu 0x%x already present??\n", cpuid);
+		BUG();
+	}
+	set_cpu_online(cpuid, true);
+
+	/* Turn on machine checks.  */
+	wrmces(7);
+
+	/* Set trap vectors.  */
+	trap_init();
+
+	/* Set interrupt vector.  */
+	wrent(entInt, 0);
+
+	/* Get our local ticker going. */
+	smp_setup_percpu_timer(cpuid);
+	init_clockevent();
+
+	/* Call platform-specific callin, if specified */
+	if (alpha_mv.smp_callin)
+		alpha_mv.smp_callin();
+
+	/* All kernel threads share the same mm context.  */
+	mmgrab(&init_mm);
+	current->active_mm = &init_mm;
+
+	/* inform the notifiers about the new cpu */
+	notify_cpu_starting(cpuid);
+
+	/* Must have completely accurate bogos.  */
+	local_irq_enable();
+
+	/* Wait boot CPU to stop with irq enabled before running
+	   calibrate_delay. */
+	wait_boot_cpu_to_stop(cpuid);
+	mb();
+	calibrate_delay();
+
+	smp_store_cpu_info(cpuid);
+	/* Allow master to continue only after we written loops_per_jiffy.  */
+	wmb();
+	smp_secondary_alive = 1;
+
+	DBGS(("smp_callin: commencing CPU %d current %p active_mm %p\n",
+	      cpuid, current, current->active_mm));
+
+	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
+}
+
+/* Wait until hwrpb->txrdy is clear for cpu.  Return -1 on timeout.  */
+static int
+wait_for_txrdy (unsigned long cpumask)
+{
+	unsigned long timeout;
+
+	if (!(hwrpb->txrdy & cpumask))
+		return 0;
+
+	timeout = jiffies + 10*HZ;
+	while (time_before(jiffies, timeout)) {
+		if (!(hwrpb->txrdy & cpumask))
+			return 0;
+		udelay(10);
+		barrier();
+	}
+
+	return -1;
+}
+
+/*
+ * Send a message to a secondary's console.  "START" is one such
+ * interesting message.  ;-)
+ */
+static void
+send_secondary_console_msg(char *str, int cpuid)
+{
+	struct percpu_struct *cpu;
+	register char *cp1, *cp2;
+	unsigned long cpumask;
+	size_t len;
+
+	cpu = (struct percpu_struct *)
+		((char*)hwrpb
+		 + hwrpb->processor_offset
+		 + cpuid * hwrpb->processor_size);
+
+	cpumask = (1UL << cpuid);
+	if (wait_for_txrdy(cpumask))
+		goto timeout;
+
+	cp2 = str;
+	len = strlen(cp2);
+	*(unsigned int *)&cpu->ipc_buffer[0] = len;
+	cp1 = (char *) &cpu->ipc_buffer[1];
+	memcpy(cp1, cp2, len);
+
+	/* atomic test and set */
+	wmb();
+	set_bit(cpuid, &hwrpb->rxrdy);
+
+	if (wait_for_txrdy(cpumask))
+		goto timeout;
+	return;
+
+ timeout:
+	printk("Processor %x not ready\n", cpuid);
+}
+
+/*
+ * A secondary console wants to send a message.  Receive it.
+ */
+static void
+recv_secondary_console_msg(void)
+{
+	int mycpu, i, cnt;
+	unsigned long txrdy = hwrpb->txrdy;
+	char *cp1, *cp2, buf[80];
+	struct percpu_struct *cpu;
+
+	DBGS(("recv_secondary_console_msg: TXRDY 0x%lx.\n", txrdy));
+
+	mycpu = hard_smp_processor_id();
+
+	for (i = 0; i < NR_CPUS; i++) {
+		if (!(txrdy & (1UL << i)))
+			continue;
+
+		DBGS(("recv_secondary_console_msg: "
+		      "TXRDY contains CPU %d.\n", i));
+
+		cpu = (struct percpu_struct *)
+		  ((char*)hwrpb
+		   + hwrpb->processor_offset
+		   + i * hwrpb->processor_size);
+
+ 		DBGS(("recv_secondary_console_msg: on %d from %d"
+		      " HALT_REASON 0x%lx FLAGS 0x%lx\n",
+		      mycpu, i, cpu->halt_reason, cpu->flags));
+
+		cnt = cpu->ipc_buffer[0] >> 32;
+		if (cnt <= 0 || cnt >= 80)
+			strcpy(buf, "<<< BOGUS MSG >>>");
+		else {
+			cp1 = (char *) &cpu->ipc_buffer[1];
+			cp2 = buf;
+			memcpy(cp2, cp1, cnt);
+			cp2[cnt] = '\0';
+			
+			while ((cp2 = strchr(cp2, '\r')) != 0) {
+				*cp2 = ' ';
+				if (cp2[1] == '\n')
+					cp2[1] = ' ';
+			}
+		}
+
+		DBGS((KERN_INFO "recv_secondary_console_msg: on %d "
+		      "message is '%s'\n", mycpu, buf));
+	}
+
+	hwrpb->txrdy = 0;
+}
+
+/*
+ * Convince the console to have a secondary cpu begin execution.
+ */
+static int
+secondary_cpu_start(int cpuid, struct task_struct *idle)
+{
+	struct percpu_struct *cpu;
+	struct pcb_struct *hwpcb, *ipcb;
+	unsigned long timeout;
+	  
+	cpu = (struct percpu_struct *)
+		((char*)hwrpb
+		 + hwrpb->processor_offset
+		 + cpuid * hwrpb->processor_size);
+	hwpcb = (struct pcb_struct *) cpu->hwpcb;
+	ipcb = &task_thread_info(idle)->pcb;
+
+	/* Initialize the CPU's HWPCB to something just good enough for
+	   us to get started.  Immediately after starting, we'll swpctx
+	   to the target idle task's pcb.  Reuse the stack in the mean
+	   time.  Precalculate the target PCBB.  */
+	hwpcb->ksp = (unsigned long)ipcb + sizeof(union thread_union) - 16;
+	hwpcb->usp = 0;
+	hwpcb->ptbr = ipcb->ptbr;
+	hwpcb->pcc = 0;
+	hwpcb->asn = 0;
+	hwpcb->unique = virt_to_phys(ipcb);
+	hwpcb->flags = ipcb->flags;
+	hwpcb->res1 = hwpcb->res2 = 0;
+
+#if 0
+	DBGS(("KSP 0x%lx PTBR 0x%lx VPTBR 0x%lx UNIQUE 0x%lx\n",
+	      hwpcb->ksp, hwpcb->ptbr, hwrpb->vptb, hwpcb->unique));
+#endif
+	DBGS(("Starting secondary cpu %d: state 0x%lx pal_flags 0x%lx\n",
+	      cpuid, idle->state, ipcb->flags));
+
+	/* Setup HWRPB fields that SRM uses to activate secondary CPU */
+	hwrpb->CPU_restart = __smp_callin;
+	hwrpb->CPU_restart_data = (unsigned long) __smp_callin;
+
+	/* Recalculate and update the HWRPB checksum */
+	hwrpb_update_checksum(hwrpb);
+
+	/*
+	 * Send a "start" command to the specified processor.
+	 */
+
+	/* SRM III 3.4.1.3 */
+	cpu->flags |= 0x22;	/* turn on Context Valid and Restart Capable */
+	cpu->flags &= ~1;	/* turn off Bootstrap In Progress */
+	wmb();
+
+	send_secondary_console_msg("START\r\n", cpuid);
+
+	/* Wait 10 seconds for an ACK from the console.  */
+	timeout = jiffies + 10*HZ;
+	while (time_before(jiffies, timeout)) {
+		if (cpu->flags & 1)
+			goto started;
+		udelay(10);
+		barrier();
+	}
+	printk(KERN_ERR "SMP: Processor %d failed to start.\n", cpuid);
+	return -1;
+
+ started:
+	DBGS(("secondary_cpu_start: SUCCESS for CPU %d!!!\n", cpuid));
+	return 0;
+}
+
+/*
+ * Bring one cpu online.
+ */
+static int
+smp_boot_one_cpu(int cpuid, struct task_struct *idle)
+{
+	unsigned long timeout;
+
+	/* Signal the secondary to wait a moment.  */
+	smp_secondary_alive = -1;
+
+	/* Whirrr, whirrr, whirrrrrrrrr... */
+	if (secondary_cpu_start(cpuid, idle))
+		return -1;
+
+	/* Notify the secondary CPU it can run calibrate_delay.  */
+	mb();
+	smp_secondary_alive = 0;
+
+	/* We've been acked by the console; wait one second for
+	   the task to start up for real.  */
+	timeout = jiffies + 1*HZ;
+	while (time_before(jiffies, timeout)) {
+		if (smp_secondary_alive == 1)
+			goto alive;
+		udelay(10);
+		barrier();
+	}
+
+	/* We failed to boot the CPU.  */
+
+	printk(KERN_ERR "SMP: Processor %d is stuck.\n", cpuid);
+	return -1;
+
+ alive:
+	/* Another "Red Snapper". */
+	return 0;
+}
+
+/*
+ * Called from setup_arch.  Detect an SMP system and which processors
+ * are present.
+ */
+void __init
+setup_smp(void)
+{
+	struct percpu_struct *cpubase, *cpu;
+	unsigned long i;
+
+	if (boot_cpuid != 0) {
+		printk(KERN_WARNING "SMP: Booting off cpu %d instead of 0?\n",
+		       boot_cpuid);
+	}
+
+	if (hwrpb->nr_processors > 1) {
+		int boot_cpu_palrev;
+
+		DBGS(("setup_smp: nr_processors %ld\n",
+		      hwrpb->nr_processors));
+
+		cpubase = (struct percpu_struct *)
+			((char*)hwrpb + hwrpb->processor_offset);
+		boot_cpu_palrev = cpubase->pal_revision;
+
+		for (i = 0; i < hwrpb->nr_processors; i++) {
+			cpu = (struct percpu_struct *)
+				((char *)cpubase + i*hwrpb->processor_size);
+			if ((cpu->flags & 0x1cc) == 0x1cc) {
+				smp_num_probed++;
+				set_cpu_possible(i, true);
+				set_cpu_present(i, true);
+				cpu->pal_revision = boot_cpu_palrev;
+			}
+
+			DBGS(("setup_smp: CPU %d: flags 0x%lx type 0x%lx\n",
+			      i, cpu->flags, cpu->type));
+			DBGS(("setup_smp: CPU %d: PAL rev 0x%lx\n",
+			      i, cpu->pal_revision));
+		}
+	} else {
+		smp_num_probed = 1;
+	}
+
+	printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n",
+	       smp_num_probed, cpumask_bits(cpu_present_mask)[0]);
+}
+
+/*
+ * Called by smp_init prepare the secondaries
+ */
+void __init
+smp_prepare_cpus(unsigned int max_cpus)
+{
+	/* Take care of some initial bookkeeping.  */
+	memset(ipi_data, 0, sizeof(ipi_data));
+
+	current_thread_info()->cpu = boot_cpuid;
+
+	smp_store_cpu_info(boot_cpuid);
+	smp_setup_percpu_timer(boot_cpuid);
+
+	/* Nothing to do on a UP box, or when told not to.  */
+	if (smp_num_probed == 1 || max_cpus == 0) {
+		init_cpu_possible(cpumask_of(boot_cpuid));
+		init_cpu_present(cpumask_of(boot_cpuid));
+		printk(KERN_INFO "SMP mode deactivated.\n");
+		return;
+	}
+
+	printk(KERN_INFO "SMP starting up secondaries.\n");
+
+	smp_num_cpus = smp_num_probed;
+}
+
+void
+smp_prepare_boot_cpu(void)
+{
+}
+
+int
+__cpu_up(unsigned int cpu, struct task_struct *tidle)
+{
+	smp_boot_one_cpu(cpu, tidle);
+
+	return cpu_online(cpu) ? 0 : -ENOSYS;
+}
+
+void __init
+smp_cpus_done(unsigned int max_cpus)
+{
+	int cpu;
+	unsigned long bogosum = 0;
+
+	for(cpu = 0; cpu < NR_CPUS; cpu++) 
+		if (cpu_online(cpu))
+			bogosum += cpu_data[cpu].loops_per_jiffy;
+	
+	printk(KERN_INFO "SMP: Total of %d processors activated "
+	       "(%lu.%02lu BogoMIPS).\n",
+	       num_online_cpus(), 
+	       (bogosum + 2500) / (500000/HZ),
+	       ((bogosum + 2500) / (5000/HZ)) % 100);
+}
+
+static void
+send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)
+{
+	int i;
+
+	mb();
+	for_each_cpu(i, to_whom)
+		set_bit(operation, &ipi_data[i].bits);
+
+	mb();
+	for_each_cpu(i, to_whom)
+		wripir(i);
+}
+
+void
+handle_ipi(struct pt_regs *regs)
+{
+	int this_cpu = smp_processor_id();
+	unsigned long *pending_ipis = &ipi_data[this_cpu].bits;
+	unsigned long ops;
+
+#if 0
+	DBGS(("handle_ipi: on CPU %d ops 0x%lx PC 0x%lx\n",
+	      this_cpu, *pending_ipis, regs->pc));
+#endif
+
+	mb();	/* Order interrupt and bit testing. */
+	while ((ops = xchg(pending_ipis, 0)) != 0) {
+	  mb();	/* Order bit clearing and data access. */
+	  do {
+		unsigned long which;
+
+		which = ops & -ops;
+		ops &= ~which;
+		which = __ffs(which);
+
+		switch (which) {
+		case IPI_RESCHEDULE:
+			scheduler_ipi();
+			break;
+
+		case IPI_CALL_FUNC:
+			generic_smp_call_function_interrupt();
+			break;
+
+		case IPI_CPU_STOP:
+			halt();
+
+		default:
+			printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n",
+			       this_cpu, which);
+			break;
+		}
+	  } while (ops);
+
+	  mb();	/* Order data access and bit testing. */
+	}
+
+	cpu_data[this_cpu].ipi_count++;
+
+	if (hwrpb->txrdy)
+		recv_secondary_console_msg();
+}
+
+void
+smp_send_reschedule(int cpu)
+{
+#ifdef DEBUG_IPI_MSG
+	if (cpu == hard_smp_processor_id())
+		printk(KERN_WARNING
+		       "smp_send_reschedule: Sending IPI to self.\n");
+#endif
+	send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);
+}
+
+void
+smp_send_stop(void)
+{
+	cpumask_t to_whom;
+	cpumask_copy(&to_whom, cpu_online_mask);
+	cpumask_clear_cpu(smp_processor_id(), &to_whom);
+#ifdef DEBUG_IPI_MSG
+	if (hard_smp_processor_id() != boot_cpu_id)
+		printk(KERN_WARNING "smp_send_stop: Not on boot cpu.\n");
+#endif
+	send_ipi_message(&to_whom, IPI_CPU_STOP);
+}
+
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+	send_ipi_message(mask, IPI_CALL_FUNC);
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+	send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);
+}
+
+static void
+ipi_imb(void *ignored)
+{
+	imb();
+}
+
+void
+smp_imb(void)
+{
+	/* Must wait other processors to flush their icache before continue. */
+	on_each_cpu(ipi_imb, NULL, 1);
+}
+EXPORT_SYMBOL(smp_imb);
+
+static void
+ipi_flush_tlb_all(void *ignored)
+{
+	tbia();
+}
+
+void
+flush_tlb_all(void)
+{
+	/* Although we don't have any data to pass, we do want to
+	   synchronize with the other processors.  */
+	on_each_cpu(ipi_flush_tlb_all, NULL, 1);
+}
+
+#define asn_locked() (cpu_data[smp_processor_id()].asn_lock)
+
+static void
+ipi_flush_tlb_mm(void *x)
+{
+	struct mm_struct *mm = (struct mm_struct *) x;
+	if (mm == current->active_mm && !asn_locked())
+		flush_tlb_current(mm);
+	else
+		flush_tlb_other(mm);
+}
+
+void
+flush_tlb_mm(struct mm_struct *mm)
+{
+	preempt_disable();
+
+	if (mm == current->active_mm) {
+		flush_tlb_current(mm);
+		if (atomic_read(&mm->mm_users) <= 1) {
+			int cpu, this_cpu = smp_processor_id();
+			for (cpu = 0; cpu < NR_CPUS; cpu++) {
+				if (!cpu_online(cpu) || cpu == this_cpu)
+					continue;
+				if (mm->context[cpu])
+					mm->context[cpu] = 0;
+			}
+			preempt_enable();
+			return;
+		}
+	}
+
+	smp_call_function(ipi_flush_tlb_mm, mm, 1);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(flush_tlb_mm);
+
+struct flush_tlb_page_struct {
+	struct vm_area_struct *vma;
+	struct mm_struct *mm;
+	unsigned long addr;
+};
+
+static void
+ipi_flush_tlb_page(void *x)
+{
+	struct flush_tlb_page_struct *data = (struct flush_tlb_page_struct *)x;
+	struct mm_struct * mm = data->mm;
+
+	if (mm == current->active_mm && !asn_locked())
+		flush_tlb_current_page(mm, data->vma, data->addr);
+	else
+		flush_tlb_other(mm);
+}
+
+void
+flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+	struct flush_tlb_page_struct data;
+	struct mm_struct *mm = vma->vm_mm;
+
+	preempt_disable();
+
+	if (mm == current->active_mm) {
+		flush_tlb_current_page(mm, vma, addr);
+		if (atomic_read(&mm->mm_users) <= 1) {
+			int cpu, this_cpu = smp_processor_id();
+			for (cpu = 0; cpu < NR_CPUS; cpu++) {
+				if (!cpu_online(cpu) || cpu == this_cpu)
+					continue;
+				if (mm->context[cpu])
+					mm->context[cpu] = 0;
+			}
+			preempt_enable();
+			return;
+		}
+	}
+
+	data.vma = vma;
+	data.mm = mm;
+	data.addr = addr;
+
+	smp_call_function(ipi_flush_tlb_page, &data, 1);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(flush_tlb_page);
+
+void
+flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
+{
+	/* On the Alpha we always flush the whole user tlb.  */
+	flush_tlb_mm(vma->vm_mm);
+}
+EXPORT_SYMBOL(flush_tlb_range);
+
+static void
+ipi_flush_icache_page(void *x)
+{
+	struct mm_struct *mm = (struct mm_struct *) x;
+	if (mm == current->active_mm && !asn_locked())
+		__load_new_mm_context(mm);
+	else
+		flush_tlb_other(mm);
+}
+
+void
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+			unsigned long addr, int len)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	if ((vma->vm_flags & VM_EXEC) == 0)
+		return;
+
+	preempt_disable();
+
+	if (mm == current->active_mm) {
+		__load_new_mm_context(mm);
+		if (atomic_read(&mm->mm_users) <= 1) {
+			int cpu, this_cpu = smp_processor_id();
+			for (cpu = 0; cpu < NR_CPUS; cpu++) {
+				if (!cpu_online(cpu) || cpu == this_cpu)
+					continue;
+				if (mm->context[cpu])
+					mm->context[cpu] = 0;
+			}
+			preempt_enable();
+			return;
+		}
+	}
+
+	smp_call_function(ipi_flush_icache_page, mm, 1);
+
+	preempt_enable();
+}
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
new file mode 100644
index 000000000..217b4dca5
--- /dev/null
+++ b/arch/alpha/kernel/srm_env.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * srm_env.c - Access to SRM environment
+ *             variables through linux' procfs
+ *
+ * (C) 2001,2002,2006 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
+ *
+ * This driver is a modified version of Erik Mouw's example proc
+ * interface, so: thank you, Erik! He can be reached via email at
+ * <J.A.K.Mouw@its.tudelft.nl>. It is based on an idea
+ * provided by DEC^WCompaq^WIntel's "Jumpstart" CD. They
+ * included a patch like this as well. Thanks for idea!
+ */
+
+#include <linux/kernel.h>
+#include <linux/gfp.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <asm/console.h>
+#include <linux/uaccess.h>
+#include <asm/machvec.h>
+
+#define BASE_DIR	"srm_environment"	/* Subdir in /proc/		*/
+#define NAMED_DIR	"named_variables"	/* Subdir for known variables	*/
+#define NUMBERED_DIR	"numbered_variables"	/* Subdir for all variables	*/
+#define VERSION		"0.0.6"			/* Module version		*/
+#define NAME		"srm_env"		/* Module name			*/
+
+MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
+MODULE_DESCRIPTION("Accessing Alpha SRM environment through procfs interface");
+MODULE_LICENSE("GPL");
+
+typedef struct _srm_env {
+	char			*name;
+	unsigned long		id;
+} srm_env_t;
+
+static struct proc_dir_entry	*base_dir;
+static struct proc_dir_entry	*named_dir;
+static struct proc_dir_entry	*numbered_dir;
+
+static srm_env_t	srm_named_entries[] = {
+	{ "auto_action",	ENV_AUTO_ACTION		},
+	{ "boot_dev",		ENV_BOOT_DEV		},
+	{ "bootdef_dev",	ENV_BOOTDEF_DEV		},
+	{ "booted_dev",		ENV_BOOTED_DEV		},
+	{ "boot_file",		ENV_BOOT_FILE		},
+	{ "booted_file",	ENV_BOOTED_FILE		},
+	{ "boot_osflags",	ENV_BOOT_OSFLAGS	},
+	{ "booted_osflags",	ENV_BOOTED_OSFLAGS	},
+	{ "boot_reset",		ENV_BOOT_RESET		},
+	{ "dump_dev",		ENV_DUMP_DEV		},
+	{ "enable_audit",	ENV_ENABLE_AUDIT	},
+	{ "license",		ENV_LICENSE		},
+	{ "char_set",		ENV_CHAR_SET		},
+	{ "language",		ENV_LANGUAGE		},
+	{ "tty_dev",		ENV_TTY_DEV		},
+	{ NULL,			0			},
+};
+
+static int srm_env_proc_show(struct seq_file *m, void *v)
+{
+	unsigned long	ret;
+	unsigned long	id = (unsigned long)m->private;
+	char		*page;
+
+	page = (char *)__get_free_page(GFP_USER);
+	if (!page)
+		return -ENOMEM;
+
+	ret = callback_getenv(id, page, PAGE_SIZE);
+
+	if ((ret >> 61) == 0) {
+		seq_write(m, page, ret);
+		ret = 0;
+	} else
+		ret = -EFAULT;
+	free_page((unsigned long)page);
+	return ret;
+}
+
+static int srm_env_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, srm_env_proc_show, pde_data(inode));
+}
+
+static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
+				  size_t count, loff_t *pos)
+{
+	int res;
+	unsigned long	id = (unsigned long)pde_data(file_inode(file));
+	char		*buf = (char *) __get_free_page(GFP_USER);
+	unsigned long	ret1, ret2;
+
+	if (!buf)
+		return -ENOMEM;
+
+	res = -EINVAL;
+	if (count >= PAGE_SIZE)
+		goto out;
+
+	res = -EFAULT;
+	if (copy_from_user(buf, buffer, count))
+		goto out;
+	buf[count] = '\0';
+
+	ret1 = callback_setenv(id, buf, count);
+	if ((ret1 >> 61) == 0) {
+		do
+			ret2 = callback_save_env();
+		while((ret2 >> 61) == 1);
+		res = (int) ret1;
+	}
+
+ out:
+	free_page((unsigned long)buf);
+	return res;
+}
+
+static const struct proc_ops srm_env_proc_ops = {
+	.proc_open	= srm_env_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= srm_env_proc_write,
+};
+
+static int __init
+srm_env_init(void)
+{
+	srm_env_t	*entry;
+	unsigned long	var_num;
+
+	/*
+	 * Check system
+	 */
+	if (!alpha_using_srm) {
+		printk(KERN_INFO "%s: This Alpha system doesn't "
+				"know about SRM (or you've booted "
+				"SRM->MILO->Linux, which gets "
+				"misdetected)...\n", __func__);
+		return -ENODEV;
+	}
+
+	/*
+	 * Create base directory
+	 */
+	base_dir = proc_mkdir(BASE_DIR, NULL);
+	if (!base_dir) {
+		printk(KERN_ERR "Couldn't create base dir /proc/%s\n",
+				BASE_DIR);
+		return -ENOMEM;
+	}
+
+	/*
+	 * Create per-name subdirectory
+	 */
+	named_dir = proc_mkdir(NAMED_DIR, base_dir);
+	if (!named_dir) {
+		printk(KERN_ERR "Couldn't create dir /proc/%s/%s\n",
+				BASE_DIR, NAMED_DIR);
+		goto cleanup;
+	}
+
+	/*
+	 * Create per-number subdirectory
+	 */
+	numbered_dir = proc_mkdir(NUMBERED_DIR, base_dir);
+	if (!numbered_dir) {
+		printk(KERN_ERR "Couldn't create dir /proc/%s/%s\n",
+				BASE_DIR, NUMBERED_DIR);
+		goto cleanup;
+
+	}
+
+	/*
+	 * Create all named nodes
+	 */
+	entry = srm_named_entries;
+	while (entry->name && entry->id) {
+		if (!proc_create_data(entry->name, 0644, named_dir,
+			     &srm_env_proc_ops, (void *)entry->id))
+			goto cleanup;
+		entry++;
+	}
+
+	/*
+	 * Create all numbered nodes
+	 */
+	for (var_num = 0; var_num <= 255; var_num++) {
+		char name[4];
+		sprintf(name, "%ld", var_num);
+		if (!proc_create_data(name, 0644, numbered_dir,
+			     &srm_env_proc_ops, (void *)var_num))
+			goto cleanup;
+	}
+
+	printk(KERN_INFO "%s: version %s loaded successfully\n", NAME,
+			VERSION);
+
+	return 0;
+
+cleanup:
+	remove_proc_subtree(BASE_DIR, NULL);
+	return -ENOMEM;
+}
+
+static void __exit
+srm_env_exit(void)
+{
+	remove_proc_subtree(BASE_DIR, NULL);
+	printk(KERN_INFO "%s: unloaded successfully\n", NAME);
+}
+
+module_init(srm_env_init);
+module_exit(srm_env_exit);
diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
new file mode 100644
index 000000000..6dc952b0d
--- /dev/null
+++ b/arch/alpha/kernel/srmcons.c
@@ -0,0 +1,289 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/srmcons.c
+ *
+ * Callback based driver for SRM Console console device.
+ * (TTY driver and console driver)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+
+#include <asm/console.h>
+#include <linux/uaccess.h>
+
+
+static DEFINE_SPINLOCK(srmcons_callback_lock);
+static int srm_is_registered_console = 0;
+
+/* 
+ * The TTY driver
+ */
+#define MAX_SRM_CONSOLE_DEVICES 1	/* only support 1 console device */
+
+struct srmcons_private {
+	struct tty_port port;
+	struct timer_list timer;
+} srmcons_singleton;
+
+typedef union _srmcons_result {
+	struct {
+		unsigned long c :61;
+		unsigned long status :3;
+	} bits;
+	long as_long;
+} srmcons_result;
+
+/* called with callback_lock held */
+static int
+srmcons_do_receive_chars(struct tty_port *port)
+{
+	srmcons_result result;
+	int count = 0, loops = 0;
+
+	do {
+		result.as_long = callback_getc(0);
+		if (result.bits.status < 2) {
+			tty_insert_flip_char(port, (char)result.bits.c, 0);
+			count++;
+		}
+	} while((result.bits.status & 1) && (++loops < 10));
+
+	if (count)
+		tty_flip_buffer_push(port);
+
+	return count;
+}
+
+static void
+srmcons_receive_chars(struct timer_list *t)
+{
+	struct srmcons_private *srmconsp = from_timer(srmconsp, t, timer);
+	struct tty_port *port = &srmconsp->port;
+	unsigned long flags;
+	int incr = 10;
+
+	local_irq_save(flags);
+	if (spin_trylock(&srmcons_callback_lock)) {
+		if (!srmcons_do_receive_chars(port))
+			incr = 100;
+		spin_unlock(&srmcons_callback_lock);
+	} 
+
+	spin_lock(&port->lock);
+	if (port->tty)
+		mod_timer(&srmconsp->timer, jiffies + incr);
+	spin_unlock(&port->lock);
+
+	local_irq_restore(flags);
+}
+
+/* called with callback_lock held */
+static int
+srmcons_do_write(struct tty_port *port, const char *buf, int count)
+{
+	static char str_cr[1] = "\r";
+	long c, remaining = count;
+	srmcons_result result;
+	char *cur;
+	int need_cr;
+
+	for (cur = (char *)buf; remaining > 0; ) {
+		need_cr = 0;
+		/* 
+		 * Break it up into reasonable size chunks to allow a chance
+		 * for input to get in
+		 */
+		for (c = 0; c < min_t(long, 128L, remaining) && !need_cr; c++)
+			if (cur[c] == '\n')
+				need_cr = 1;
+		
+		while (c > 0) {
+			result.as_long = callback_puts(0, cur, c);
+			c -= result.bits.c;
+			remaining -= result.bits.c;
+			cur += result.bits.c;
+
+			/*
+			 * Check for pending input iff a tty port was provided
+			 */
+			if (port)
+				srmcons_do_receive_chars(port);
+		}
+
+		while (need_cr) {
+			result.as_long = callback_puts(0, str_cr, 1);
+			if (result.bits.c > 0)
+				need_cr = 0;
+		}
+	}
+	return count;
+}
+
+static int
+srmcons_write(struct tty_struct *tty,
+	      const unsigned char *buf, int count)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&srmcons_callback_lock, flags);
+	srmcons_do_write(tty->port, (const char *) buf, count);
+	spin_unlock_irqrestore(&srmcons_callback_lock, flags);
+
+	return count;
+}
+
+static unsigned int
+srmcons_write_room(struct tty_struct *tty)
+{
+	return 512;
+}
+
+static int
+srmcons_open(struct tty_struct *tty, struct file *filp)
+{
+	struct srmcons_private *srmconsp = &srmcons_singleton;
+	struct tty_port *port = &srmconsp->port;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	if (!port->tty) {
+		tty->driver_data = srmconsp;
+		tty->port = port;
+		port->tty = tty; /* XXX proper refcounting */
+		mod_timer(&srmconsp->timer, jiffies + 10);
+	}
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return 0;
+}
+
+static void
+srmcons_close(struct tty_struct *tty, struct file *filp)
+{
+	struct srmcons_private *srmconsp = tty->driver_data;
+	struct tty_port *port = &srmconsp->port;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	if (tty->count == 1) {
+		port->tty = NULL;
+		del_timer(&srmconsp->timer);
+	}
+
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+
+static struct tty_driver *srmcons_driver;
+
+static const struct tty_operations srmcons_ops = {
+	.open		= srmcons_open,
+	.close		= srmcons_close,
+	.write		= srmcons_write,
+	.write_room	= srmcons_write_room,
+};
+
+static int __init
+srmcons_init(void)
+{
+	timer_setup(&srmcons_singleton.timer, srmcons_receive_chars, 0);
+	if (srm_is_registered_console) {
+		struct tty_driver *driver;
+		int err;
+
+		driver = tty_alloc_driver(MAX_SRM_CONSOLE_DEVICES, 0);
+		if (IS_ERR(driver))
+			return PTR_ERR(driver);
+
+		tty_port_init(&srmcons_singleton.port);
+
+		driver->driver_name = "srm";
+		driver->name = "srm";
+		driver->major = 0; 	/* dynamic */
+		driver->minor_start = 0;
+		driver->type = TTY_DRIVER_TYPE_SYSTEM;
+		driver->subtype = SYSTEM_TYPE_SYSCONS;
+		driver->init_termios = tty_std_termios;
+		tty_set_operations(driver, &srmcons_ops);
+		tty_port_link_device(&srmcons_singleton.port, driver, 0);
+		err = tty_register_driver(driver);
+		if (err) {
+			tty_driver_kref_put(driver);
+			tty_port_destroy(&srmcons_singleton.port);
+			return err;
+		}
+		srmcons_driver = driver;
+	}
+
+	return -ENODEV;
+}
+device_initcall(srmcons_init);
+
+
+/*
+ * The console driver
+ */
+static void
+srm_console_write(struct console *co, const char *s, unsigned count)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&srmcons_callback_lock, flags);
+	srmcons_do_write(NULL, s, count);
+	spin_unlock_irqrestore(&srmcons_callback_lock, flags);
+}
+
+static struct tty_driver *
+srm_console_device(struct console *co, int *index)
+{
+	*index = co->index;
+	return srmcons_driver;
+}
+
+static int
+srm_console_setup(struct console *co, char *options)
+{
+	return 0;
+}
+
+static struct console srmcons = {
+	.name		= "srm",
+	.write		= srm_console_write,
+	.device		= srm_console_device,
+	.setup		= srm_console_setup,
+	.flags		= CON_PRINTBUFFER | CON_BOOT,
+	.index		= -1,
+};
+
+void __init
+register_srm_console(void)
+{
+	if (!srm_is_registered_console) {
+		callback_open_console();
+		register_console(&srmcons);
+		srm_is_registered_console = 1;
+	}
+}
+
+void __init
+unregister_srm_console(void)
+{
+	if (srm_is_registered_console) {
+		callback_close_console();
+		unregister_console(&srmcons);
+		srm_is_registered_console = 0;
+	}
+}
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
new file mode 100644
index 000000000..e063b3857
--- /dev/null
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -0,0 +1,309 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_alcor.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the ALCOR and XLT (XL-300/366/433).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/mmu_context.h>
+#include <asm/irq.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+static unsigned long cached_irq_mask;
+
+static inline void
+alcor_update_irq_hw(unsigned long mask)
+{
+	*(vuip)GRU_INT_MASK = mask;
+	mb();
+}
+
+static inline void
+alcor_enable_irq(struct irq_data *d)
+{
+	alcor_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16));
+}
+
+static void
+alcor_disable_irq(struct irq_data *d)
+{
+	alcor_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16)));
+}
+
+static void
+alcor_mask_and_ack_irq(struct irq_data *d)
+{
+	alcor_disable_irq(d);
+
+	/* On ALCOR/XLT, need to dismiss interrupt via GRU. */
+	*(vuip)GRU_INT_CLEAR = 1 << (d->irq - 16); mb();
+	*(vuip)GRU_INT_CLEAR = 0; mb();
+}
+
+static void
+alcor_isa_mask_and_ack_irq(struct irq_data *d)
+{
+	i8259a_mask_and_ack_irq(d);
+
+	/* On ALCOR/XLT, need to dismiss interrupt via GRU. */
+	*(vuip)GRU_INT_CLEAR = 0x80000000; mb();
+	*(vuip)GRU_INT_CLEAR = 0; mb();
+}
+
+static struct irq_chip alcor_irq_type = {
+	.name		= "ALCOR",
+	.irq_unmask	= alcor_enable_irq,
+	.irq_mask	= alcor_disable_irq,
+	.irq_mask_ack	= alcor_mask_and_ack_irq,
+};
+
+static void
+alcor_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary register of the GRU */
+	pld = (*(vuip)GRU_INT_REQ) & GRU_INT_REQ_BITS;
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i == 31) {
+			isa_device_interrupt(vector);
+		} else {
+			handle_irq(16 + i);
+		}
+	}
+}
+
+static void __init
+alcor_init_irq(void)
+{
+	long i;
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = srm_device_interrupt;
+
+	*(vuip)GRU_INT_MASK  = 0; mb();			/* all disabled */
+	*(vuip)GRU_INT_EDGE  = 0; mb();			/* all are level */
+	*(vuip)GRU_INT_HILO  = 0x80000000U; mb();	/* ISA only HI */
+	*(vuip)GRU_INT_CLEAR = 0; mb();			/* all clear */
+
+	for (i = 16; i < 48; ++i) {
+		/* On Alcor, at least, lines 20..30 are not connected
+		   and can generate spurious interrupts if we turn them
+		   on while IRQ probing.  */
+		if (i >= 16+20 && i <= 16+30)
+			continue;
+		irq_set_chip_and_handler(i, &alcor_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+	i8259a_irq_type.irq_ack = alcor_isa_mask_and_ack_irq;
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+
+	if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL))
+		pr_err("Failed to register isa-cascade interrupt\n");
+}
+
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ GRU_INT_REQ:
+ * Bit      Meaning
+ * 0        Interrupt Line A from slot 2
+ * 1        Interrupt Line B from slot 2
+ * 2        Interrupt Line C from slot 2
+ * 3        Interrupt Line D from slot 2
+ * 4        Interrupt Line A from slot 1
+ * 5        Interrupt line B from slot 1
+ * 6        Interrupt Line C from slot 1
+ * 7        Interrupt Line D from slot 1
+ * 8        Interrupt Line A from slot 0
+ * 9        Interrupt Line B from slot 0
+ *10        Interrupt Line C from slot 0
+ *11        Interrupt Line D from slot 0
+ *12        Interrupt Line A from slot 4
+ *13        Interrupt Line B from slot 4
+ *14        Interrupt Line C from slot 4
+ *15        Interrupt Line D from slot 4
+ *16        Interrupt Line D from slot 3
+ *17        Interrupt Line D from slot 3
+ *18        Interrupt Line D from slot 3
+ *19        Interrupt Line D from slot 3
+ *20-30     Reserved
+ *31        EISA interrupt
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  6       built-in TULIP (XLT only)
+ *  7       PCI on board slot 0
+ *  8       PCI on board slot 3
+ *  9       PCI on board slot 4
+ * 10       PCEB (PCI-EISA bridge)
+ * 11       PCI on board slot 2
+ * 12       PCI on board slot 1
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+
+static int
+alcor_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[7][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		/* note: IDSEL 17 is XLT only */
+		{16+13, 16+13, 16+13, 16+13, 16+13},	/* IdSel 17,  TULIP  */
+		{ 16+8,  16+8,  16+9, 16+10, 16+11},	/* IdSel 18,  slot 0 */
+		{16+16, 16+16, 16+17, 16+18, 16+19},	/* IdSel 19,  slot 3 */
+		{16+12, 16+12, 16+13, 16+14, 16+15},	/* IdSel 20,  slot 4 */
+		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 21,  PCEB   */
+		{ 16+0,  16+0,  16+1,  16+2,  16+3},	/* IdSel 22,  slot 2 */
+		{ 16+4,  16+4,  16+5,  16+6,  16+7},	/* IdSel 23,  slot 1 */
+	};
+	const long min_idsel = 6, max_idsel = 12, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static void
+alcor_kill_arch(int mode)
+{
+	cia_kill_arch(mode);
+
+#ifndef ALPHA_RESTORE_SRM_SETUP
+	switch(mode) {
+	case LINUX_REBOOT_CMD_RESTART:
+		/* Who said DEC engineer's have no sense of humor? ;-)  */
+		if (alpha_using_srm) {
+			*(vuip) GRU_RESET = 0x0000dead;
+			mb();
+		}
+		break;
+	case LINUX_REBOOT_CMD_HALT:
+		break;
+	case LINUX_REBOOT_CMD_POWER_OFF:
+		break;
+	}
+
+	halt();
+#endif
+}
+
+static void __init
+alcor_init_pci(void)
+{
+	struct pci_dev *dev;
+
+	cia_init_pci();
+
+	/*
+	 * Now we can look to see if we are really running on an XLT-type
+	 * motherboard, by looking for a 21040 TULIP in slot 6, which is
+	 * built into XLT and BRET/MAVERICK, but not available on ALCOR.
+	 */
+	dev = pci_get_device(PCI_VENDOR_ID_DEC,
+			      PCI_DEVICE_ID_DEC_TULIP,
+			      NULL);
+	if (dev && dev->devfn == PCI_DEVFN(6,0)) {
+		alpha_mv.sys.cia.gru_int_req_bits = XLT_GRU_INT_REQ_BITS; 
+		printk(KERN_INFO "%s: Detected AS500 or XLT motherboard.\n",
+		       __func__);
+	}
+	pci_dev_put(dev);
+}
+
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector alcor_mv __initmv = {
+	.vector_name		= "Alcor",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= alcor_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= alcor_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= alcor_init_pci,
+	.kill_arch		= alcor_kill_arch,
+	.pci_map_irq		= alcor_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .cia = {
+		.gru_int_req_bits = ALCOR_GRU_INT_REQ_BITS
+	}}
+};
+ALIAS_MV(alcor)
+
+struct alpha_machine_vector xlt_mv __initmv = {
+	.vector_name		= "XLT",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= alcor_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= alcor_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= alcor_init_pci,
+	.kill_arch		= alcor_kill_arch,
+	.pci_map_irq		= alcor_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .cia = {
+		.gru_int_req_bits = XLT_GRU_INT_REQ_BITS
+	}}
+};
+
+/* No alpha_mv alias for XLT, since we compile it in unconditionally
+   with ALCOR; setup_arch knows how to cope.  */
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
new file mode 100644
index 000000000..47459b73c
--- /dev/null
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -0,0 +1,444 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_cabriolet.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999, 2000 Richard Henderson
+ *
+ * Code supporting the Cabriolet (AlphaPC64), EB66+, and EB164,
+ * PC164 and LX164.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#include <asm/core_cia.h>
+#include <asm/core_lca.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+#include "pc873xx.h"
+
+/* Note mask bit is true for DISABLED irqs.  */
+static unsigned long cached_irq_mask = ~0UL;
+
+static inline void
+cabriolet_update_irq_hw(unsigned int irq, unsigned long mask)
+{
+	int ofs = (irq - 16) / 8;
+	outb(mask >> (16 + ofs * 8), 0x804 + ofs);
+}
+
+static inline void
+cabriolet_enable_irq(struct irq_data *d)
+{
+	cabriolet_update_irq_hw(d->irq, cached_irq_mask &= ~(1UL << d->irq));
+}
+
+static void
+cabriolet_disable_irq(struct irq_data *d)
+{
+	cabriolet_update_irq_hw(d->irq, cached_irq_mask |= 1UL << d->irq);
+}
+
+static struct irq_chip cabriolet_irq_type = {
+	.name		= "CABRIOLET",
+	.irq_unmask	= cabriolet_enable_irq,
+	.irq_mask	= cabriolet_disable_irq,
+	.irq_mask_ack	= cabriolet_disable_irq,
+};
+
+static void 
+cabriolet_device_interrupt(unsigned long v)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary registers */
+	pld = inb(0x804) | (inb(0x805) << 8) | (inb(0x806) << 16);
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1;	/* clear least bit set */
+		if (i == 4) {
+			isa_device_interrupt(v);
+		} else {
+			handle_irq(16 + i);
+		}
+	}
+}
+
+static void __init
+common_init_irq(void (*srm_dev_int)(unsigned long v))
+{
+	init_i8259a_irqs();
+
+	if (alpha_using_srm) {
+		alpha_mv.device_interrupt = srm_dev_int;
+		init_srm_irqs(35, 0);
+	}
+	else {
+		long i;
+
+		outb(0xff, 0x804);
+		outb(0xff, 0x805);
+		outb(0xff, 0x806);
+
+		for (i = 16; i < 35; ++i) {
+			irq_set_chip_and_handler(i, &cabriolet_irq_type,
+						 handle_level_irq);
+			irq_set_status_flags(i, IRQ_LEVEL);
+		}
+	}
+
+	common_init_isa_dma();
+	if (request_irq(16 + 4, no_action, 0, "isa-cascade", NULL))
+		pr_err("Failed to register isa-cascade interrupt\n");
+}
+
+#ifndef CONFIG_ALPHA_PC164
+static void __init
+cabriolet_init_irq(void)
+{
+	common_init_irq(srm_device_interrupt);
+}
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PC164)
+/* In theory, the PC164 has the same interrupt hardware as the other
+   Cabriolet based systems.  However, something got screwed up late
+   in the development cycle which broke the interrupt masking hardware.
+   Repeat, it is not possible to mask and ack interrupts.  At all.
+
+   In an attempt to work around this, while processing interrupts,
+   we do not allow the IPL to drop below what it is currently.  This
+   prevents the possibility of recursion.  
+
+   ??? Another option might be to force all PCI devices to use edge
+   triggered rather than level triggered interrupts.  That might be
+   too invasive though.  */
+
+static void
+pc164_srm_device_interrupt(unsigned long v)
+{
+	__min_ipl = getipl();
+	srm_device_interrupt(v);
+	__min_ipl = 0;
+}
+
+static void
+pc164_device_interrupt(unsigned long v)
+{
+	__min_ipl = getipl();
+	cabriolet_device_interrupt(v);
+	__min_ipl = 0;
+}
+
+static void __init
+pc164_init_irq(void)
+{
+	common_init_irq(pc164_srm_device_interrupt);
+}
+#endif
+
+/*
+ * The EB66+ is very similar to the EB66 except that it does not have
+ * the on-board NCR and Tulip chips.  In the code below, I have used
+ * slot number to refer to the id select line and *not* the slot
+ * number used in the EB66+ documentation.  However, in the table,
+ * I've given the slot number, the id select line and the Jxx number
+ * that's printed on the board.  The interrupt pins from the PCI slots
+ * are wired into 3 interrupt summary registers at 0x804, 0x805 and
+ * 0x806 ISA.
+ *
+ * In the table, -1 means don't assign an IRQ number.  This is usually
+ * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip.
+ */
+
+static inline int
+eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT  INTA  INTB  INTC   INTD */
+		{16+0, 16+0, 16+5,  16+9, 16+13},  /* IdSel 6,  slot 0, J25 */
+		{16+1, 16+1, 16+6, 16+10, 16+14},  /* IdSel 7,  slot 1, J26 */
+		{  -1,   -1,   -1,    -1,    -1},  /* IdSel 8,  SIO         */
+		{16+2, 16+2, 16+7, 16+11, 16+15},  /* IdSel 9,  slot 2, J27 */
+		{16+3, 16+3, 16+8, 16+12,  16+6}   /* IdSel 10, slot 3, J28 */
+	};
+	const long min_idsel = 6, max_idsel = 10, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+
+/*
+ * The AlphaPC64 is very similar to the EB66+ except that its slots
+ * are numbered differently.  In the code below, I have used slot
+ * number to refer to the id select line and *not* the slot number
+ * used in the AlphaPC64 documentation.  However, in the table, I've
+ * given the slot number, the id select line and the Jxx number that's
+ * printed on the board.  The interrupt pins from the PCI slots are
+ * wired into 3 interrupt summary registers at 0x804, 0x805 and 0x806
+ * ISA.
+ *
+ * In the table, -1 means don't assign an IRQ number.  This is usually
+ * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip.
+ */
+
+static inline int
+cabriolet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT   INTA  INTB  INTC   INTD */
+		{ 16+2, 16+2, 16+7, 16+11, 16+15}, /* IdSel 5,  slot 2, J21 */
+		{ 16+0, 16+0, 16+5,  16+9, 16+13}, /* IdSel 6,  slot 0, J19 */
+		{ 16+1, 16+1, 16+6, 16+10, 16+14}, /* IdSel 7,  slot 1, J20 */
+		{   -1,   -1,   -1,    -1,    -1}, /* IdSel 8,  SIO         */
+		{ 16+3, 16+3, 16+8, 16+12, 16+16}  /* IdSel 9,  slot 3, J22 */
+	};
+	const long min_idsel = 5, max_idsel = 9, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static inline void __init
+cabriolet_enable_ide(void)
+{
+	if (pc873xx_probe() == -1) {
+		printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+	 } else {
+		printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+			pc873xx_get_model(), pc873xx_get_base());
+
+		pc873xx_enable_ide();
+	}
+}
+
+static inline void __init
+cabriolet_init_pci(void)
+{
+	common_init_pci();
+	cabriolet_enable_ide();
+}
+
+static inline void __init
+cia_cab_init_pci(void)
+{
+	cia_init_pci();
+	cabriolet_enable_ide();
+}
+
+/*
+ * The PC164 and LX164 have 19 PCI interrupts, four from each of the four
+ * PCI slots, the SIO, PCI/IDE, and USB.
+ * 
+ * Each of the interrupts can be individually masked. This is
+ * accomplished by setting the appropriate bit in the mask register.
+ * A bit is set by writing a "1" to the desired position in the mask
+ * register and cleared by writing a "0". There are 3 mask registers
+ * located at ISA address 804h, 805h and 806h.
+ * 
+ * An I/O read at ISA address 804h, 805h, 806h will return the
+ * state of the 11 PCI interrupts and not the state of the MASKED
+ * interrupts.
+ * 
+ * Note: A write to I/O 804h, 805h, and 806h the mask register will be
+ * updated.
+ * 
+ * 
+ * 				ISA DATA<7:0>
+ * ISA     +--------------------------------------------------------------+
+ * ADDRESS |   7   |   6   |   5   |   4   |   3   |   2  |   1   |   0   |
+ *         +==============================================================+
+ * 0x804   | INTB0 |  USB  |  IDE  |  SIO  | INTA3 |INTA2 | INTA1 | INTA0 |
+ *         +--------------------------------------------------------------+
+ * 0x805   | INTD0 | INTC3 | INTC2 | INTC1 | INTC0 |INTB3 | INTB2 | INTB1 |
+ *         +--------------------------------------------------------------+
+ * 0x806   | Rsrv  | Rsrv  | Rsrv  | Rsrv  | Rsrv  |INTD3 | INTD2 | INTD1 |
+ *         +--------------------------------------------------------------+
+ *         * Rsrv = reserved bits
+ *         Note: The mask register is write-only.
+ * 
+ * IdSel	
+ *   5	 32 bit PCI option slot 2
+ *   6	 64 bit PCI option slot 0
+ *   7	 64 bit PCI option slot 1
+ *   8	 Saturn I/O
+ *   9	 32 bit PCI option slot 3
+ *  10	 USB
+ *  11	 IDE
+ * 
+ */
+
+static inline int
+alphapc164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[7][5] = {
+		/*INT   INTA  INTB   INTC   INTD */
+		{ 16+2, 16+2, 16+9,  16+13, 16+17}, /* IdSel  5, slot 2, J20 */
+		{ 16+0, 16+0, 16+7,  16+11, 16+15}, /* IdSel  6, slot 0, J29 */
+		{ 16+1, 16+1, 16+8,  16+12, 16+16}, /* IdSel  7, slot 1, J26 */
+		{   -1,   -1,   -1,    -1,    -1},  /* IdSel  8, SIO */
+		{ 16+3, 16+3, 16+10, 16+14, 16+18}, /* IdSel  9, slot 3, J19 */
+		{ 16+6, 16+6, 16+6,  16+6,  16+6},  /* IdSel 10, USB */
+		{ 16+5, 16+5, 16+5,  16+5,  16+5}   /* IdSel 11, IDE */
+	};
+	const long min_idsel = 5, max_idsel = 11, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static inline void __init
+alphapc164_init_pci(void)
+{
+	cia_init_pci();
+	SMC93x_Init();
+}
+
+
+/*
+ * The System Vector
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_CABRIOLET)
+struct alpha_machine_vector cabriolet_mv __initmv = {
+	.vector_name		= "Cabriolet",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 35,
+	.device_interrupt	= cabriolet_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= cabriolet_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= cabriolet_init_pci,
+	.pci_map_irq		= cabriolet_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+#ifndef CONFIG_ALPHA_EB64P
+ALIAS_MV(cabriolet)
+#endif
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB164)
+struct alpha_machine_vector eb164_mv __initmv = {
+	.vector_name		= "EB164",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 35,
+	.device_interrupt	= cabriolet_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= cabriolet_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= cia_cab_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= cabriolet_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(eb164)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB66P)
+struct alpha_machine_vector eb66p_mv __initmv = {
+	.vector_name		= "EB66+",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_LCA_IO,
+	.machine_check		= lca_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 35,
+	.device_interrupt	= cabriolet_device_interrupt,
+
+	.init_arch		= lca_init_arch,
+	.init_irq		= cabriolet_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= cabriolet_init_pci,
+	.pci_map_irq		= eb66p_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(eb66p)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LX164)
+struct alpha_machine_vector lx164_mv __initmv = {
+	.vector_name		= "LX164",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_PYXIS_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= PYXIS_DAC_OFFSET,
+
+	.nr_irqs		= 35,
+	.device_interrupt	= cabriolet_device_interrupt,
+
+	.init_arch		= pyxis_init_arch,
+	.init_irq		= cabriolet_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= alphapc164_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= alphapc164_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(lx164)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PC164)
+struct alpha_machine_vector pc164_mv __initmv = {
+	.vector_name		= "PC164",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 35,
+	.device_interrupt	= pc164_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= pc164_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= alphapc164_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= alphapc164_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(pc164)
+#endif
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
new file mode 100644
index 000000000..9fb445d7d
--- /dev/null
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -0,0 +1,665 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_dp264.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996, 1999 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ *	Modified by Christopher C. Chimelis, 2001 to
+ *	add support for the addition of Shark to the
+ *	Tsunami family.
+ *
+ * Code supporting the DP264 (EV6+TSUNAMI).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_tsunami.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+static unsigned long cached_irq_mask;
+/* dp264 boards handle at max four CPUs */
+static unsigned long cpu_irq_affinity[4] = { 0UL, 0UL, 0UL, 0UL };
+
+DEFINE_SPINLOCK(dp264_irq_lock);
+
+static void
+tsunami_update_irq_hw(unsigned long mask)
+{
+	register tsunami_cchip *cchip = TSUNAMI_cchip;
+	unsigned long isa_enable = 1UL << 55;
+	register int bcpu = boot_cpuid;
+
+#ifdef CONFIG_SMP
+	volatile unsigned long *dim0, *dim1, *dim2, *dim3;
+	unsigned long mask0, mask1, mask2, mask3, dummy;
+
+	mask &= ~isa_enable;
+	mask0 = mask & cpu_irq_affinity[0];
+	mask1 = mask & cpu_irq_affinity[1];
+	mask2 = mask & cpu_irq_affinity[2];
+	mask3 = mask & cpu_irq_affinity[3];
+
+	if (bcpu == 0) mask0 |= isa_enable;
+	else if (bcpu == 1) mask1 |= isa_enable;
+	else if (bcpu == 2) mask2 |= isa_enable;
+	else mask3 |= isa_enable;
+
+	dim0 = &cchip->dim0.csr;
+	dim1 = &cchip->dim1.csr;
+	dim2 = &cchip->dim2.csr;
+	dim3 = &cchip->dim3.csr;
+	if (!cpu_possible(0)) dim0 = &dummy;
+	if (!cpu_possible(1)) dim1 = &dummy;
+	if (!cpu_possible(2)) dim2 = &dummy;
+	if (!cpu_possible(3)) dim3 = &dummy;
+
+	*dim0 = mask0;
+	*dim1 = mask1;
+	*dim2 = mask2;
+	*dim3 = mask3;
+	mb();
+	*dim0;
+	*dim1;
+	*dim2;
+	*dim3;
+#else
+	volatile unsigned long *dimB;
+	if (bcpu == 0) dimB = &cchip->dim0.csr;
+	else if (bcpu == 1) dimB = &cchip->dim1.csr;
+	else if (bcpu == 2) dimB = &cchip->dim2.csr;
+	else dimB = &cchip->dim3.csr;
+
+	*dimB = mask | isa_enable;
+	mb();
+	*dimB;
+#endif
+}
+
+static void
+dp264_enable_irq(struct irq_data *d)
+{
+	spin_lock(&dp264_irq_lock);
+	cached_irq_mask |= 1UL << d->irq;
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+}
+
+static void
+dp264_disable_irq(struct irq_data *d)
+{
+	spin_lock(&dp264_irq_lock);
+	cached_irq_mask &= ~(1UL << d->irq);
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+}
+
+static void
+clipper_enable_irq(struct irq_data *d)
+{
+	spin_lock(&dp264_irq_lock);
+	cached_irq_mask |= 1UL << (d->irq - 16);
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+}
+
+static void
+clipper_disable_irq(struct irq_data *d)
+{
+	spin_lock(&dp264_irq_lock);
+	cached_irq_mask &= ~(1UL << (d->irq - 16));
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+}
+
+static void
+cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
+{
+	int cpu;
+
+	for (cpu = 0; cpu < 4; cpu++) {
+		unsigned long aff = cpu_irq_affinity[cpu];
+		if (cpumask_test_cpu(cpu, &affinity))
+			aff |= 1UL << irq;
+		else
+			aff &= ~(1UL << irq);
+		cpu_irq_affinity[cpu] = aff;
+	}
+}
+
+static int
+dp264_set_affinity(struct irq_data *d, const struct cpumask *affinity,
+		   bool force)
+{
+	spin_lock(&dp264_irq_lock);
+	cpu_set_irq_affinity(d->irq, *affinity);
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+
+	return 0;
+}
+
+static int
+clipper_set_affinity(struct irq_data *d, const struct cpumask *affinity,
+		     bool force)
+{
+	spin_lock(&dp264_irq_lock);
+	cpu_set_irq_affinity(d->irq - 16, *affinity);
+	tsunami_update_irq_hw(cached_irq_mask);
+	spin_unlock(&dp264_irq_lock);
+
+	return 0;
+}
+
+static struct irq_chip dp264_irq_type = {
+	.name			= "DP264",
+	.irq_unmask		= dp264_enable_irq,
+	.irq_mask		= dp264_disable_irq,
+	.irq_mask_ack		= dp264_disable_irq,
+	.irq_set_affinity	= dp264_set_affinity,
+};
+
+static struct irq_chip clipper_irq_type = {
+	.name			= "CLIPPER",
+	.irq_unmask		= clipper_enable_irq,
+	.irq_mask		= clipper_disable_irq,
+	.irq_mask_ack		= clipper_disable_irq,
+	.irq_set_affinity	= clipper_set_affinity,
+};
+
+static void
+dp264_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary register of TSUNAMI */
+	pld = TSUNAMI_cchip->dir0.csr;
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i == 55)
+			isa_device_interrupt(vector);
+		else
+			handle_irq(16 + i);
+	}
+}
+
+static void 
+dp264_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+	/*
+	 * The SRM console reports PCI interrupts with a vector calculated by:
+	 *
+	 *	0x900 + (0x10 * DRIR-bit)
+	 *
+	 * So bit 16 shows up as IRQ 32, etc.
+	 * 
+	 * On DP264/BRICK/MONET, we adjust it down by 16 because at least
+	 * that many of the low order bits of the DRIR are not used, and
+	 * so we don't count them.
+	 */
+	if (irq >= 32)
+		irq -= 16;
+
+	handle_irq(irq);
+}
+
+static void 
+clipper_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+/*
+	 * The SRM console reports PCI interrupts with a vector calculated by:
+	 *
+	 *	0x900 + (0x10 * DRIR-bit)
+	 *
+	 * So bit 16 shows up as IRQ 32, etc.
+	 * 
+	 * CLIPPER uses bits 8-47 for PCI interrupts, so we do not need
+	 * to scale down the vector reported, we just use it.
+	 *
+	 * Eg IRQ 24 is DRIR bit 8, etc, etc
+	 */
+	handle_irq(irq);
+}
+
+static void __init
+init_tsunami_irqs(struct irq_chip * ops, int imin, int imax)
+{
+	long i;
+	for (i = imin; i <= imax; ++i) {
+		irq_set_chip_and_handler(i, ops, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+}
+
+static void __init
+dp264_init_irq(void)
+{
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
+	outb(0, DMA2_MASK_REG);
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = dp264_srm_device_interrupt;
+
+	tsunami_update_irq_hw(0);
+
+	init_i8259a_irqs();
+	init_tsunami_irqs(&dp264_irq_type, 16, 47);
+}
+
+static void __init
+clipper_init_irq(void)
+{
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
+	outb(0, DMA2_MASK_REG);
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = clipper_srm_device_interrupt;
+
+	tsunami_update_irq_hw(0);
+
+	init_i8259a_irqs();
+	init_tsunami_irqs(&clipper_irq_type, 24, 63);
+}
+
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ TSUNAMI_CSR_DIM0:
+ * Bit      Meaning
+ * 0-17     Unused
+ *18        Interrupt SCSI B (Adaptec 7895 builtin)
+ *19        Interrupt SCSI A (Adaptec 7895 builtin)
+ *20        Interrupt Line D from slot 2 PCI0
+ *21        Interrupt Line C from slot 2 PCI0
+ *22        Interrupt Line B from slot 2 PCI0
+ *23        Interrupt Line A from slot 2 PCI0
+ *24        Interrupt Line D from slot 1 PCI0
+ *25        Interrupt Line C from slot 1 PCI0
+ *26        Interrupt Line B from slot 1 PCI0
+ *27        Interrupt Line A from slot 1 PCI0
+ *28        Interrupt Line D from slot 0 PCI0
+ *29        Interrupt Line C from slot 0 PCI0
+ *30        Interrupt Line B from slot 0 PCI0
+ *31        Interrupt Line A from slot 0 PCI0
+ *
+ *32        Interrupt Line D from slot 3 PCI1
+ *33        Interrupt Line C from slot 3 PCI1
+ *34        Interrupt Line B from slot 3 PCI1
+ *35        Interrupt Line A from slot 3 PCI1
+ *36        Interrupt Line D from slot 2 PCI1
+ *37        Interrupt Line C from slot 2 PCI1
+ *38        Interrupt Line B from slot 2 PCI1
+ *39        Interrupt Line A from slot 2 PCI1
+ *40        Interrupt Line D from slot 1 PCI1
+ *41        Interrupt Line C from slot 1 PCI1
+ *42        Interrupt Line B from slot 1 PCI1
+ *43        Interrupt Line A from slot 1 PCI1
+ *44        Interrupt Line D from slot 0 PCI1
+ *45        Interrupt Line C from slot 0 PCI1
+ *46        Interrupt Line B from slot 0 PCI1
+ *47        Interrupt Line A from slot 0 PCI1
+ *48-52     Unused
+ *53        PCI0 NMI (from Cypress)
+ *54        PCI0 SMI INT (from Cypress)
+ *55        PCI0 ISA Interrupt (from Cypress)
+ *56-60     Unused
+ *61        PCI1 Bus Error
+ *62        PCI0 Bus Error
+ *63        Reserved
+ *
+ * IdSel	
+ *   5	 Cypress Bridge I/O
+ *   6	 SCSI Adaptec builtin
+ *   7	 64 bit PCI option slot 0 (all busses)
+ *   8	 64 bit PCI option slot 1 (all busses)
+ *   9	 64 bit PCI option slot 2 (all busses)
+ *  10	 64 bit PCI option slot 3 (not bus 0)
+ */
+
+static int
+isa_irq_fixup(const struct pci_dev *dev, int irq)
+{
+	u8 irq8;
+
+	if (irq > 0)
+		return irq;
+
+	/* This interrupt is routed via ISA bridge, so we'll
+	   just have to trust whatever value the console might
+	   have assigned.  */
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8);
+
+	return irq8 & 0xf;
+}
+
+static int
+dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[6][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 ISA Bridge */
+		{ 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/
+		{ 16+15, 16+15, 16+14, 16+13, 16+12}, /* IdSel 7 slot 0 */
+		{ 16+11, 16+11, 16+10, 16+ 9, 16+ 8}, /* IdSel 8 slot 1 */
+		{ 16+ 7, 16+ 7, 16+ 6, 16+ 5, 16+ 4}, /* IdSel 9 slot 2 */
+		{ 16+ 3, 16+ 3, 16+ 2, 16+ 1, 16+ 0}  /* IdSel 10 slot 3 */
+	};
+	const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5;
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+
+	if (irq > 0)
+		irq += 16 * hose->index;
+
+	return isa_irq_fixup(dev, irq);
+}
+
+static int
+monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[13][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{    45,    45,    45,    45,    45}, /* IdSel 3 21143 PCI1 */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 4 unused */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 unused */
+		{    47,    47,    47,    47,    47}, /* IdSel 6 SCSI PCI1 */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 P2P PCI1 */
+#if 1
+		{    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
+		{    24,    24,    25,    26,    27}, /* IdSel 15 slot 5 PCI2*/
+#else
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 9 unused */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
+#endif
+		{    40,    40,    41,    42,    43}, /* IdSel 11 slot 1 PCI0*/
+		{    36,    36,    37,    38,    39}, /* IdSel 12 slot 2 PCI0*/
+		{    32,    32,    33,    34,    35}, /* IdSel 13 slot 3 PCI0*/
+		{    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
+		{    24,    24,    25,    26,    27}  /* IdSel 15 slot 5 PCI2*/
+	};
+	const long min_idsel = 3, max_idsel = 15, irqs_per_slot = 5;
+
+	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
+}
+
+static u8
+monet_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	struct pci_controller *hose = dev->sysdata;
+	int slot, pin = *pinp;
+
+	if (!dev->bus->parent) {
+		slot = PCI_SLOT(dev->devfn);
+	}
+	/* Check for the built-in bridge on hose 1. */
+	else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) {
+		slot = PCI_SLOT(dev->devfn);
+	} else {
+		/* Must be a card-based bridge.  */
+		do {
+			/* Check for built-in bridge on hose 1. */
+			if (hose->index == 1 &&
+			    PCI_SLOT(dev->bus->self->devfn) == 8) {
+				slot = PCI_SLOT(dev->devfn);
+				break;
+			}
+			pin = pci_swizzle_interrupt_pin(dev, pin);
+
+			/* Move up the chain of bridges.  */
+			dev = dev->bus->self;
+			/* Slot of the next bridge.  */
+			slot = PCI_SLOT(dev->devfn);
+		} while (dev->bus->self);
+	}
+	*pinp = pin;
+	return slot;
+}
+
+static int
+webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[13][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 unused */
+		{    29,    29,    29,    29,    29}, /* IdSel 9 21143 #1 */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
+		{    30,    30,    30,    30,    30}, /* IdSel 11 21143 #2 */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 12 unused */
+		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 13 unused */
+		{    35,    35,    34,    33,    32}, /* IdSel 14 slot 0 */
+		{    39,    39,    38,    37,    36}, /* IdSel 15 slot 1 */
+		{    43,    43,    42,    41,    40}, /* IdSel 16 slot 2 */
+		{    47,    47,    46,    45,    44}, /* IdSel 17 slot 3 */
+	};
+	const long min_idsel = 7, max_idsel = 17, irqs_per_slot = 5;
+
+	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
+}
+
+static int
+clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[7][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */
+		{ 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */
+		{ 16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 3 slot 3 */
+		{ 16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 4 slot 4 */
+		{ 16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 5 slot 5 */
+		{ 16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 6 slot 6 */
+		{    -1,    -1,    -1,    -1,    -1}  /* IdSel 7 ISA Bridge */
+	};
+	const long min_idsel = 1, max_idsel = 7, irqs_per_slot = 5;
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+
+	if (irq > 0)
+		irq += 16 * hose->index;
+
+	return isa_irq_fixup(dev, irq);
+}
+
+static void __init
+dp264_init_pci(void)
+{
+	common_init_pci();
+	SMC669_Init(0);
+	locate_and_init_vga(NULL);
+}
+
+static void __init
+monet_init_pci(void)
+{
+	common_init_pci();
+	SMC669_Init(1);
+	es1888_init();
+	locate_and_init_vga(NULL);
+}
+
+static void __init
+clipper_init_pci(void)
+{
+	common_init_pci();
+	locate_and_init_vga(NULL);
+}
+
+static void __init
+webbrick_init_arch(void)
+{
+	tsunami_init_arch();
+
+	/* Tsunami caches 4 PTEs at a time; DS10 has only 1 hose. */
+	hose_head->sg_isa->align_entry = 4;
+	hose_head->sg_pci->align_entry = 4;
+}
+
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector dp264_mv __initmv = {
+	.vector_name		= "DP264",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= dp264_device_interrupt,
+
+	.init_arch		= tsunami_init_arch,
+	.init_irq		= dp264_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= dp264_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= dp264_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(dp264)
+
+struct alpha_machine_vector monet_mv __initmv = {
+	.vector_name		= "Monet",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= dp264_device_interrupt,
+
+	.init_arch		= tsunami_init_arch,
+	.init_irq		= dp264_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= monet_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= monet_map_irq,
+	.pci_swizzle		= monet_swizzle,
+};
+
+struct alpha_machine_vector webbrick_mv __initmv = {
+	.vector_name		= "Webbrick",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= dp264_device_interrupt,
+
+	.init_arch		= webbrick_init_arch,
+	.init_irq		= dp264_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= webbrick_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+
+struct alpha_machine_vector clipper_mv __initmv = {
+	.vector_name		= "Clipper",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= dp264_device_interrupt,
+
+	.init_arch		= tsunami_init_arch,
+	.init_irq		= clipper_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= clipper_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= clipper_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+
+/* Sharks strongly resemble Clipper, at least as far
+ * as interrupt routing, etc, so we're using the
+ * same functions as Clipper does
+ */
+
+struct alpha_machine_vector shark_mv __initmv = {
+	.vector_name		= "Shark",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= dp264_device_interrupt,
+
+	.init_arch		= tsunami_init_arch,
+	.init_irq		= clipper_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= clipper_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+
+/* No alpha_mv alias for webbrick/monet/clipper, since we compile them
+   in unconditionally with DP264; setup_arch knows how to cope.  */
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
new file mode 100644
index 000000000..3c43fd347
--- /dev/null
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -0,0 +1,238 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_eb64p.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the EB64+ and EB66.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#include <asm/core_lca.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note mask bit is true for DISABLED irqs.  */
+static unsigned int cached_irq_mask = -1;
+
+static inline void
+eb64p_update_irq_hw(unsigned int irq, unsigned long mask)
+{
+	outb(mask >> (irq >= 24 ? 24 : 16), (irq >= 24 ? 0x27 : 0x26));
+}
+
+static inline void
+eb64p_enable_irq(struct irq_data *d)
+{
+	eb64p_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq));
+}
+
+static void
+eb64p_disable_irq(struct irq_data *d)
+{
+	eb64p_update_irq_hw(d->irq, cached_irq_mask |= 1 << d->irq);
+}
+
+static struct irq_chip eb64p_irq_type = {
+	.name		= "EB64P",
+	.irq_unmask	= eb64p_enable_irq,
+	.irq_mask	= eb64p_disable_irq,
+	.irq_mask_ack	= eb64p_disable_irq,
+};
+
+static void 
+eb64p_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary registers */
+	pld = inb(0x26) | (inb(0x27) << 8);
+
+	/*
+	 * Now, for every possible bit set, work through
+	 * them and call the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1;	/* clear least bit set */
+
+		if (i == 5) {
+			isa_device_interrupt(vector);
+		} else {
+			handle_irq(16 + i);
+		}
+	}
+}
+
+static void __init
+eb64p_init_irq(void)
+{
+	long i;
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_CABRIOLET)
+	/*
+	 * CABRIO SRM may not set variation correctly, so here we test
+	 * the high word of the interrupt summary register for the RAZ
+	 * bits, and hope that a true EB64+ would read all ones...
+	 */
+	if (inw(0x806) != 0xffff) {
+		extern struct alpha_machine_vector cabriolet_mv;
+
+		printk("Detected Cabriolet: correcting HWRPB.\n");
+
+		hwrpb->sys_variation |= 2L << 10;
+		hwrpb_update_checksum(hwrpb);
+
+		alpha_mv = cabriolet_mv;
+		alpha_mv.init_irq();
+		return;
+	}
+#endif /* GENERIC */
+
+	outb(0xff, 0x26);
+	outb(0xff, 0x27);
+
+	init_i8259a_irqs();
+
+	for (i = 16; i < 32; ++i) {
+		irq_set_chip_and_handler(i, &eb64p_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	common_init_isa_dma();
+	if (request_irq(16 + 5, no_action, 0, "isa-cascade", NULL))
+		pr_err("Failed to register isa-cascade interrupt\n");
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * There are two 8 bit external summary registers as follows:
+ *
+ * Summary @ 0x26:
+ * Bit      Meaning
+ * 0        Interrupt Line A from slot 0
+ * 1        Interrupt Line A from slot 1
+ * 2        Interrupt Line B from slot 0
+ * 3        Interrupt Line B from slot 1
+ * 4        Interrupt Line C from slot 0
+ * 5        Interrupt line from the two ISA PICs
+ * 6        Tulip
+ * 7        NCR SCSI
+ *
+ * Summary @ 0x27
+ * Bit      Meaning
+ * 0        Interrupt Line C from slot 1
+ * 1        Interrupt Line D from slot 0
+ * 2        Interrupt Line D from slot 1
+ * 3        RAZ
+ * 4        RAZ
+ * 5        RAZ
+ * 6        RAZ
+ * 7        RAZ
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  5       NCR SCSI controller
+ *  6       PCI on board slot 0
+ *  7       PCI on board slot 1
+ *  8       Intel SIO PCI-ISA bridge chip
+ *  9       Tulip - DECchip 21040 Ethernet controller
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+
+static int
+eb64p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT  INTA  INTB  INTC   INTD */
+		{16+7, 16+7, 16+7, 16+7,  16+7},  /* IdSel 5,  slot ?, ?? */
+		{16+0, 16+0, 16+2, 16+4,  16+9},  /* IdSel 6,  slot ?, ?? */
+		{16+1, 16+1, 16+3, 16+8, 16+10},  /* IdSel 7,  slot ?, ?? */
+		{  -1,   -1,   -1,   -1,    -1},  /* IdSel 8,  SIO */
+		{16+6, 16+6, 16+6, 16+6,  16+6},  /* IdSel 9,  TULIP */
+	};
+	const long min_idsel = 5, max_idsel = 9, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+
+/*
+ * The System Vector
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB64P)
+struct alpha_machine_vector eb64p_mv __initmv = {
+	.vector_name		= "EB64+",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 32,
+	.device_interrupt	= eb64p_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= eb64p_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= NULL,
+	.pci_map_irq		= eb64p_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(eb64p)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB66)
+struct alpha_machine_vector eb66_mv __initmv = {
+	.vector_name		= "EB66",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_LCA_IO,
+	.machine_check		= lca_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 32,
+	.device_interrupt	= eb64p_device_interrupt,
+
+	.init_arch		= lca_init_arch,
+	.init_irq		= eb64p_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.pci_map_irq		= eb64p_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(eb66)
+#endif
diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c
new file mode 100644
index 000000000..aea8a54da
--- /dev/null
+++ b/arch/alpha/kernel/sys_eiger.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_eiger.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996, 1999 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *	Copyright (C) 1999 Iain Grant
+ *
+ * Code supporting the EIGER (EV6+TSUNAMI).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_tsunami.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note that this interrupt code is identical to TAKARA.  */
+
+/* Note mask bit is true for DISABLED irqs.  */
+static unsigned long cached_irq_mask[2] = { -1, -1 };
+
+static inline void
+eiger_update_irq_hw(unsigned long irq, unsigned long mask)
+{
+	int regaddr;
+
+	mask = (irq >= 64 ? mask << 16 : mask >> ((irq - 16) & 0x30));
+	regaddr = 0x510 + (((irq - 16) >> 2) & 0x0c);
+	outl(mask & 0xffff0000UL, regaddr);
+}
+
+static inline void
+eiger_enable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned long mask;
+	mask = (cached_irq_mask[irq >= 64] &= ~(1UL << (irq & 63)));
+	eiger_update_irq_hw(irq, mask);
+}
+
+static void
+eiger_disable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned long mask;
+	mask = (cached_irq_mask[irq >= 64] |= 1UL << (irq & 63));
+	eiger_update_irq_hw(irq, mask);
+}
+
+static struct irq_chip eiger_irq_type = {
+	.name		= "EIGER",
+	.irq_unmask	= eiger_enable_irq,
+	.irq_mask	= eiger_disable_irq,
+	.irq_mask_ack	= eiger_disable_irq,
+};
+
+static void
+eiger_device_interrupt(unsigned long vector)
+{
+	unsigned intstatus;
+
+	/*
+	 * The PALcode will have passed us vectors 0x800 or 0x810,
+	 * which are fairly arbitrary values and serve only to tell
+	 * us whether an interrupt has come in on IRQ0 or IRQ1. If
+	 * it's IRQ1 it's a PCI interrupt; if it's IRQ0, it's
+	 * probably ISA, but PCI interrupts can come through IRQ0
+	 * as well if the interrupt controller isn't in accelerated
+	 * mode.
+	 *
+	 * OTOH, the accelerator thing doesn't seem to be working
+	 * overly well, so what we'll do instead is try directly
+	 * examining the Master Interrupt Register to see if it's a
+	 * PCI interrupt, and if _not_ then we'll pass it on to the
+	 * ISA handler.
+	 */
+
+	intstatus = inw(0x500) & 15;
+	if (intstatus) {
+		/*
+		 * This is a PCI interrupt. Check each bit and
+		 * despatch an interrupt if it's set.
+		 */
+
+		if (intstatus & 8) handle_irq(16+3);
+		if (intstatus & 4) handle_irq(16+2);
+		if (intstatus & 2) handle_irq(16+1);
+		if (intstatus & 1) handle_irq(16+0);
+	} else {
+		isa_device_interrupt(vector);
+	}
+}
+
+static void
+eiger_srm_device_interrupt(unsigned long vector)
+{
+	int irq = (vector - 0x800) >> 4;
+	handle_irq(irq);
+}
+
+static void __init
+eiger_init_irq(void)
+{
+	long i;
+
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
+	outb(0, DMA2_MASK_REG);
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = eiger_srm_device_interrupt;
+
+	for (i = 16; i < 128; i += 16)
+		eiger_update_irq_hw(i, -1);
+
+	init_i8259a_irqs();
+
+	for (i = 16; i < 128; ++i) {
+		irq_set_chip_and_handler(i, &eiger_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+}
+
+static int
+eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	u8 irq_orig;
+
+	/* The SRM console has already calculated out the IRQ value's for
+	   option cards. As this works lets just read in the value already
+	   set and change it to a useable value by Linux.
+
+	   All the IRQ values generated by the console are greater than 90,
+	   so we subtract 80 because it is (90 - allocated ISA IRQ's).  */
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq_orig);
+
+	return irq_orig - 0x80;
+}
+
+static u8
+eiger_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	struct pci_controller *hose = dev->sysdata;
+	int slot, pin = *pinp;
+	int bridge_count = 0;
+
+	/* Find the number of backplane bridges.  */
+	int backplane = inw(0x502) & 0x0f;
+
+	switch (backplane)
+	{
+	   case 0x00: bridge_count = 0; break; /* No bridges */
+	   case 0x01: bridge_count = 1; break; /* 1 */
+	   case 0x03: bridge_count = 2; break; /* 2 */
+	   case 0x07: bridge_count = 3; break; /* 3 */
+	   case 0x0f: bridge_count = 4; break; /* 4 */
+	}
+
+	slot = PCI_SLOT(dev->devfn);
+	while (dev->bus->self) {
+		/* Check for built-in bridges on hose 0. */
+		if (hose->index == 0
+		    && (PCI_SLOT(dev->bus->self->devfn)
+			> 20 - bridge_count)) {
+			slot = PCI_SLOT(dev->devfn);
+			break;
+		}
+		/* Must be a card-based bridge.  */
+		pin = pci_swizzle_interrupt_pin(dev, pin);
+
+		/* Move up the chain of bridges.  */
+		dev = dev->bus->self;
+	}
+	*pinp = pin;
+	return slot;
+}
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector eiger_mv __initmv = {
+	.vector_name		= "Eiger",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TSUNAMI_IO,
+	.machine_check		= tsunami_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,
+
+	.nr_irqs		= 128,
+	.device_interrupt	= eiger_device_interrupt,
+
+	.init_arch		= tsunami_init_arch,
+	.init_irq		= eiger_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= tsunami_kill_arch,
+	.pci_map_irq		= eiger_map_irq,
+	.pci_swizzle		= eiger_swizzle,
+};
+ALIAS_MV(eiger)
diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c
new file mode 100644
index 000000000..5c9c88428
--- /dev/null
+++ b/arch/alpha/kernel/sys_jensen.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_jensen.c
+ *
+ *	Copyright (C) 1995 Linus Torvalds
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the Jensen.
+ */
+#define __EXTERN_INLINE
+#include <asm/io.h>
+#include <asm/jensen.h>
+#undef  __EXTERN_INLINE
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/*
+ * Jensen is special: the vector is 0x8X0 for EISA interrupt X, and
+ * 0x9X0 for the local motherboard interrupts.
+ *
+ * Note especially that those local interrupts CANNOT be masked,
+ * which causes much of the pain below...
+ *
+ *	0x660 - NMI
+ *
+ *	0x800 - IRQ0  interval timer (not used, as we use the RTC timer)
+ *	0x810 - IRQ1  line printer (duh..)
+ *	0x860 - IRQ6  floppy disk
+ *
+ *	0x900 - COM1
+ *	0x920 - COM2
+ *	0x980 - keyboard
+ *	0x990 - mouse
+ *
+ * PCI-based systems are more sane: they don't have the local
+ * interrupts at all, and have only normal PCI interrupts from
+ * devices.  Happily it's easy enough to do a sane mapping from the
+ * Jensen.
+ * 
+ * Note that this means that we may have to do a hardware
+ * "local_op" to a different interrupt than we report to the rest of the
+ * world.
+ */
+
+static void
+jensen_local_enable(struct irq_data *d)
+{
+	/* the parport is really hw IRQ 1, silly Jensen.  */
+	if (d->irq == 7)
+		i8259a_enable_irq(d);
+}
+
+static void
+jensen_local_disable(struct irq_data *d)
+{
+	/* the parport is really hw IRQ 1, silly Jensen.  */
+	if (d->irq == 7)
+		i8259a_disable_irq(d);
+}
+
+static void
+jensen_local_mask_ack(struct irq_data *d)
+{
+	/* the parport is really hw IRQ 1, silly Jensen.  */
+	if (d->irq == 7)
+		i8259a_mask_and_ack_irq(d);
+}
+
+static struct irq_chip jensen_local_irq_type = {
+	.name		= "LOCAL",
+	.irq_unmask	= jensen_local_enable,
+	.irq_mask	= jensen_local_disable,
+	.irq_mask_ack	= jensen_local_mask_ack,
+};
+
+static void 
+jensen_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	switch (vector) {
+	case 0x660:
+		printk("Whee.. NMI received. Probable hardware error\n");
+		printk("61=%02x, 461=%02x\n", inb(0x61), inb(0x461));
+		return;
+
+	/* local device interrupts: */
+	case 0x900: irq = 4; break;		/* com1 -> irq 4 */
+	case 0x920: irq = 3; break;		/* com2 -> irq 3 */
+	case 0x980: irq = 1; break;		/* kbd -> irq 1 */
+	case 0x990: irq = 9; break;		/* mouse -> irq 9 */
+
+	default:
+		if (vector > 0x900) {
+			printk("Unknown local interrupt %lx\n", vector);
+			return;
+		}
+
+		irq = (vector - 0x800) >> 4;
+		if (irq == 1)
+			irq = 7;
+		break;
+	}
+
+	/* If there is no handler yet... */
+	if (!irq_has_action(irq)) {
+	    /* If it is a local interrupt that cannot be masked... */
+	    if (vector >= 0x900)
+	    {
+	        /* Clear keyboard/mouse state */
+	    	inb(0x64);
+		inb(0x60);
+		/* Reset serial ports */
+		inb(0x3fa);
+		inb(0x2fa);
+		outb(0x0c, 0x3fc);
+		outb(0x0c, 0x2fc);
+		/* Clear NMI */
+		outb(0,0x61);
+		outb(0,0x461);
+	    }
+	}
+
+#if 0
+        /* A useful bit of code to find out if an interrupt is going wild.  */
+        {
+          static unsigned int last_msg = 0, last_cc = 0;
+          static int last_irq = -1, count = 0;
+          unsigned int cc;
+
+          __asm __volatile("rpcc %0" : "=r"(cc));
+          ++count;
+#define JENSEN_CYCLES_PER_SEC	(150000000)
+          if (cc - last_msg > ((JENSEN_CYCLES_PER_SEC) * 3) ||
+	      irq != last_irq) {
+                printk(KERN_CRIT " irq %d count %d cc %u @ %lx\n",
+                       irq, count, cc-last_cc, get_irq_regs()->pc);
+                count = 0;
+                last_msg = cc;
+                last_irq = irq;
+          }
+          last_cc = cc;
+        }
+#endif
+
+	handle_irq(irq);
+}
+
+static void __init
+jensen_init_irq(void)
+{
+	init_i8259a_irqs();
+
+	irq_set_chip_and_handler(1, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(4, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(3, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(7, &jensen_local_irq_type, handle_level_irq);
+	irq_set_chip_and_handler(9, &jensen_local_irq_type, handle_level_irq);
+
+	common_init_isa_dma();
+}
+
+static void __init
+jensen_init_arch(void)
+{
+	struct pci_controller *hose;
+#ifdef CONFIG_PCI
+	static struct pci_dev fake_isa_bridge = { .dma_mask = 0xffffffffUL, };
+
+	isa_bridge = &fake_isa_bridge;
+#endif
+
+	/* Create a hose so that we can report i/o base addresses to
+	   userland.  */
+
+	pci_isa_hose = hose = alloc_pci_controller();
+	hose->io_space = &ioport_resource;
+	hose->mem_space = &iomem_resource;
+	hose->index = 0;
+
+	hose->sparse_mem_base = EISA_MEM - IDENT_ADDR;
+	hose->dense_mem_base = 0;
+	hose->sparse_io_base = EISA_IO - IDENT_ADDR;
+	hose->dense_io_base = 0;
+
+	hose->sg_isa = hose->sg_pci = NULL;
+	__direct_map_base = 0;
+	__direct_map_size = 0xffffffff;
+}
+
+static void
+jensen_machine_check(unsigned long vector, unsigned long la)
+{
+	printk(KERN_CRIT "Machine check\n");
+}
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector jensen_mv __initmv = {
+	.vector_name		= "Jensen",
+	DO_EV4_MMU,
+	IO_LITE(JENSEN,jensen),
+	.machine_check		= jensen_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.rtc_port		= 0x170,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= jensen_device_interrupt,
+
+	.init_arch		= jensen_init_arch,
+	.init_irq		= jensen_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= NULL,
+	.kill_arch		= NULL,
+};
+ALIAS_MV(jensen)
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
new file mode 100644
index 000000000..1f99b03ef
--- /dev/null
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -0,0 +1,465 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/alpha/kernel/sys_marvel.c
+ *
+ * Marvel / IO7 support
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_marvel.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+#include <asm/vga.h>
+
+#include "proto.h"
+#include "err_impl.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+#if NR_IRQS < MARVEL_NR_IRQS
+# error NR_IRQS < MARVEL_NR_IRQS !!!
+#endif
+
+
+/*
+ * Interrupt handling.
+ */
+static void 
+io7_device_interrupt(unsigned long vector)
+{
+	unsigned int pid;
+	unsigned int irq;
+
+	/*
+	 * Vector is 0x800 + (interrupt)
+	 *
+	 * where (interrupt) is:
+	 *
+	 *	...16|15 14|13     4|3 0
+	 *	-----+-----+--------+---
+	 *	  PE |  0  |   irq  | 0
+	 *
+	 * where (irq) is 
+	 *
+	 *       0x0800 - 0x0ff0	 - 0x0800 + (LSI id << 4)
+	 *	 0x1000 - 0x2ff0	 - 0x1000 + (MSI_DAT<8:0> << 4)
+	 */
+	pid = vector >> 16;
+	irq = ((vector & 0xffff) - 0x800) >> 4;
+
+	irq += 16;				/* offset for legacy */
+	irq &= MARVEL_IRQ_VEC_IRQ_MASK;		/* not too many bits */
+	irq |= pid << MARVEL_IRQ_VEC_PE_SHIFT;	/* merge the pid     */
+
+	handle_irq(irq);
+}
+
+static volatile unsigned long *
+io7_get_irq_ctl(unsigned int irq, struct io7 **pio7)
+{
+	volatile unsigned long *ctl;
+	unsigned int pid;
+	struct io7 *io7;
+
+	pid = irq >> MARVEL_IRQ_VEC_PE_SHIFT;
+
+	if (!(io7 = marvel_find_io7(pid))) {
+		printk(KERN_ERR 
+		       "%s for nonexistent io7 -- vec %x, pid %d\n",
+		       __func__, irq, pid);
+		return NULL;
+	}
+
+	irq &= MARVEL_IRQ_VEC_IRQ_MASK;	/* isolate the vector    */
+	irq -= 16;			/* subtract legacy bias  */
+
+	if (irq >= 0x180) {
+		printk(KERN_ERR 
+		       "%s for invalid irq -- pid %d adjusted irq %x\n",
+		       __func__, pid, irq);
+		return NULL;
+	}
+
+	ctl = &io7->csrs->PO7_LSI_CTL[irq & 0xff].csr; /* assume LSI */
+	if (irq >= 0x80)	     	/* MSI */
+		ctl = &io7->csrs->PO7_MSI_CTL[((irq - 0x80) >> 5) & 0x0f].csr;
+
+	if (pio7) *pio7 = io7;
+	return ctl;
+}
+
+static void
+io7_enable_irq(struct irq_data *d)
+{
+	volatile unsigned long *ctl;
+	unsigned int irq = d->irq;
+	struct io7 *io7;
+
+	ctl = io7_get_irq_ctl(irq, &io7);
+	if (!ctl || !io7) {
+		printk(KERN_ERR "%s: get_ctl failed for irq %x\n",
+		       __func__, irq);
+		return;
+	}
+
+	raw_spin_lock(&io7->irq_lock);
+	*ctl |= 1UL << 24;
+	mb();
+	*ctl;
+	raw_spin_unlock(&io7->irq_lock);
+}
+
+static void
+io7_disable_irq(struct irq_data *d)
+{
+	volatile unsigned long *ctl;
+	unsigned int irq = d->irq;
+	struct io7 *io7;
+
+	ctl = io7_get_irq_ctl(irq, &io7);
+	if (!ctl || !io7) {
+		printk(KERN_ERR "%s: get_ctl failed for irq %x\n",
+		       __func__, irq);
+		return;
+	}
+
+	raw_spin_lock(&io7->irq_lock);
+	*ctl &= ~(1UL << 24);
+	mb();
+	*ctl;
+	raw_spin_unlock(&io7->irq_lock);
+}
+
+static void
+marvel_irq_noop(struct irq_data *d)
+{
+	return;
+}
+
+static struct irq_chip marvel_legacy_irq_type = {
+	.name		= "LEGACY",
+	.irq_mask	= marvel_irq_noop,
+	.irq_unmask	= marvel_irq_noop,
+};
+
+static struct irq_chip io7_lsi_irq_type = {
+	.name		= "LSI",
+	.irq_unmask	= io7_enable_irq,
+	.irq_mask	= io7_disable_irq,
+	.irq_mask_ack	= io7_disable_irq,
+};
+
+static struct irq_chip io7_msi_irq_type = {
+	.name		= "MSI",
+	.irq_unmask	= io7_enable_irq,
+	.irq_mask	= io7_disable_irq,
+	.irq_ack	= marvel_irq_noop,
+};
+
+static void
+io7_redirect_irq(struct io7 *io7, 
+		 volatile unsigned long *csr, 
+		 unsigned int where)
+{
+	unsigned long val;
+	
+	val = *csr;
+	val &= ~(0x1ffUL << 24);		/* clear the target pid   */
+	val |= ((unsigned long)where << 24);	/* set the new target pid */
+	
+	*csr = val;
+	mb();
+	*csr;
+}
+
+static void 
+io7_redirect_one_lsi(struct io7 *io7, unsigned int which, unsigned int where)
+{
+	unsigned long val;
+
+	/*
+	 * LSI_CTL has target PID @ 14
+	 */
+	val = io7->csrs->PO7_LSI_CTL[which].csr;
+	val &= ~(0x1ffUL << 14);		/* clear the target pid */
+	val |= ((unsigned long)where << 14);	/* set the new target pid */
+
+	io7->csrs->PO7_LSI_CTL[which].csr = val;
+	mb();
+	io7->csrs->PO7_LSI_CTL[which].csr;
+}
+
+static void 
+io7_redirect_one_msi(struct io7 *io7, unsigned int which, unsigned int where)
+{
+	unsigned long val;
+
+	/*
+	 * MSI_CTL has target PID @ 14
+	 */
+	val = io7->csrs->PO7_MSI_CTL[which].csr;
+	val &= ~(0x1ffUL << 14);		/* clear the target pid */
+	val |= ((unsigned long)where << 14);	/* set the new target pid */
+
+	io7->csrs->PO7_MSI_CTL[which].csr = val;
+	mb();
+	io7->csrs->PO7_MSI_CTL[which].csr;
+}
+
+static void __init
+init_one_io7_lsi(struct io7 *io7, unsigned int which, unsigned int where)
+{
+	/*
+	 * LSI_CTL has target PID @ 14
+	 */
+	io7->csrs->PO7_LSI_CTL[which].csr = ((unsigned long)where << 14);
+	mb();
+	io7->csrs->PO7_LSI_CTL[which].csr;
+}
+
+static void __init
+init_one_io7_msi(struct io7 *io7, unsigned int which, unsigned int where)
+{
+	/*
+	 * MSI_CTL has target PID @ 14
+	 */
+	io7->csrs->PO7_MSI_CTL[which].csr = ((unsigned long)where << 14);
+	mb();
+	io7->csrs->PO7_MSI_CTL[which].csr;
+}
+
+static void __init
+init_io7_irqs(struct io7 *io7, 
+	      struct irq_chip *lsi_ops,
+	      struct irq_chip *msi_ops)
+{
+	long base = (io7->pe << MARVEL_IRQ_VEC_PE_SHIFT) + 16;
+	long i;
+
+	printk("Initializing interrupts for IO7 at PE %u - base %lx\n",
+		io7->pe, base);
+
+	/*
+	 * Where should interrupts from this IO7 go?
+	 *
+	 * They really should be sent to the local CPU to avoid having to
+	 * traverse the mesh, but if it's not an SMP kernel, they have to
+	 * go to the boot CPU. Send them all to the boot CPU for now,
+	 * as each secondary starts, it can redirect it's local device 
+	 * interrupts.
+	 */
+	printk("  Interrupts reported to CPU at PE %u\n", boot_cpuid);
+
+	raw_spin_lock(&io7->irq_lock);
+
+	/* set up the error irqs */
+	io7_redirect_irq(io7, &io7->csrs->HLT_CTL.csr, boot_cpuid);
+	io7_redirect_irq(io7, &io7->csrs->HPI_CTL.csr, boot_cpuid);
+	io7_redirect_irq(io7, &io7->csrs->CRD_CTL.csr, boot_cpuid);
+	io7_redirect_irq(io7, &io7->csrs->STV_CTL.csr, boot_cpuid);
+	io7_redirect_irq(io7, &io7->csrs->HEI_CTL.csr, boot_cpuid);
+
+	/* Set up the lsi irqs.  */
+	for (i = 0; i < 128; ++i) {
+		irq_set_chip_and_handler(base + i, lsi_ops, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	/* Disable the implemented irqs in hardware.  */
+	for (i = 0; i < 0x60; ++i) 
+		init_one_io7_lsi(io7, i, boot_cpuid);
+
+	init_one_io7_lsi(io7, 0x74, boot_cpuid);
+	init_one_io7_lsi(io7, 0x75, boot_cpuid);
+
+
+	/* Set up the msi irqs.  */
+	for (i = 128; i < (128 + 512); ++i) {
+		irq_set_chip_and_handler(base + i, msi_ops, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	for (i = 0; i < 16; ++i)
+		init_one_io7_msi(io7, i, boot_cpuid);
+
+	raw_spin_unlock(&io7->irq_lock);
+}
+
+static void __init
+marvel_init_irq(void)
+{
+	int i;
+	struct io7 *io7 = NULL;
+
+	/* Reserve the legacy irqs.  */
+	for (i = 0; i < 16; ++i) {
+		irq_set_chip_and_handler(i, &marvel_legacy_irq_type,
+					 handle_level_irq);
+	}
+
+	/* Init the io7 irqs.  */
+	for (io7 = NULL; (io7 = marvel_next_io7(io7)) != NULL; )
+		init_io7_irqs(io7, &io7_lsi_irq_type, &io7_msi_irq_type);
+}
+
+static int 
+marvel_map_irq(const struct pci_dev *cdev, u8 slot, u8 pin)
+{
+	struct pci_dev *dev = (struct pci_dev *)cdev;
+	struct pci_controller *hose = dev->sysdata;
+	struct io7_port *io7_port = hose->sysdata;
+	struct io7 *io7 = io7_port->io7;
+	int msi_loc, msi_data_off;
+	u16 msg_ctl;
+	u16 msg_dat;
+	u8 intline; 
+	int irq;
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &intline);
+	irq = intline;
+
+	msi_loc = dev->msi_cap;
+	msg_ctl = 0;
+	if (msi_loc) 
+		pci_read_config_word(dev, msi_loc + PCI_MSI_FLAGS, &msg_ctl);
+
+	if (msg_ctl & PCI_MSI_FLAGS_ENABLE) {
+ 		msi_data_off = PCI_MSI_DATA_32;
+		if (msg_ctl & PCI_MSI_FLAGS_64BIT) 
+			msi_data_off = PCI_MSI_DATA_64;
+		pci_read_config_word(dev, msi_loc + msi_data_off, &msg_dat);
+
+		irq = msg_dat & 0x1ff;		/* we use msg_data<8:0> */
+		irq += 0x80;			/* offset for lsi       */
+
+#if 1
+		printk("PCI:%d:%d:%d (hose %d) is using MSI\n",
+		       dev->bus->number, 
+		       PCI_SLOT(dev->devfn), 
+		       PCI_FUNC(dev->devfn),
+		       hose->index);
+		printk("  %d message(s) from 0x%04x\n", 
+		       1 << ((msg_ctl & PCI_MSI_FLAGS_QSIZE) >> 4),
+		       msg_dat);
+		printk("  reporting on %d IRQ(s) from %d (0x%x)\n", 
+		       1 << ((msg_ctl & PCI_MSI_FLAGS_QSIZE) >> 4),
+		       (irq + 16) | (io7->pe << MARVEL_IRQ_VEC_PE_SHIFT),
+		       (irq + 16) | (io7->pe << MARVEL_IRQ_VEC_PE_SHIFT));
+#endif
+
+#if 0
+		pci_write_config_word(dev, msi_loc + PCI_MSI_FLAGS,
+				      msg_ctl & ~PCI_MSI_FLAGS_ENABLE);
+		pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &intline);
+		irq = intline;
+
+		printk("  forcing LSI interrupt on irq %d [0x%x]\n", irq, irq);
+#endif
+	}
+
+	irq += 16;					/* offset for legacy */
+	irq |= io7->pe << MARVEL_IRQ_VEC_PE_SHIFT;	/* merge the pid     */
+
+	return irq; 
+}
+
+static void __init
+marvel_init_pci(void)
+{
+	struct io7 *io7;
+
+	marvel_register_error_handlers();
+
+	/* Indicate that we trust the console to configure things properly */
+	pci_set_flags(PCI_PROBE_ONLY);
+	common_init_pci();
+	locate_and_init_vga(NULL);
+
+	/* Clear any io7 errors.  */
+	for (io7 = NULL; (io7 = marvel_next_io7(io7)) != NULL; ) 
+		io7_clear_errors(io7);
+}
+
+static void __init
+marvel_init_rtc(void)
+{
+	init_rtc_irq(NULL);
+}
+
+static void
+marvel_smp_callin(void)
+{
+	int cpuid = hard_smp_processor_id();
+	struct io7 *io7 = marvel_find_io7(cpuid);
+	unsigned int i;
+
+	if (!io7)
+		return;
+
+	/* 
+	 * There is a local IO7 - redirect all of its interrupts here.
+	 */
+	printk("Redirecting IO7 interrupts to local CPU at PE %u\n", cpuid);
+
+	/* Redirect the error IRQS here.  */
+	io7_redirect_irq(io7, &io7->csrs->HLT_CTL.csr, cpuid);
+	io7_redirect_irq(io7, &io7->csrs->HPI_CTL.csr, cpuid);
+	io7_redirect_irq(io7, &io7->csrs->CRD_CTL.csr, cpuid);
+	io7_redirect_irq(io7, &io7->csrs->STV_CTL.csr, cpuid);
+	io7_redirect_irq(io7, &io7->csrs->HEI_CTL.csr, cpuid);
+
+	/* Redirect the implemented LSIs here.  */
+	for (i = 0; i < 0x60; ++i) 
+		io7_redirect_one_lsi(io7, i, cpuid);
+
+	io7_redirect_one_lsi(io7, 0x74, cpuid);
+	io7_redirect_one_lsi(io7, 0x75, cpuid);
+
+	/* Redirect the MSIs here.  */
+	for (i = 0; i < 16; ++i)
+		io7_redirect_one_msi(io7, i, cpuid);
+}
+
+/*
+ * System Vectors
+ */
+struct alpha_machine_vector marvel_ev7_mv __initmv = {
+	.vector_name		= "MARVEL/EV7",
+	DO_EV7_MMU,
+	.rtc_port		= 0x70,
+	.rtc_boot_cpu_only	= 1,
+	DO_MARVEL_IO,
+	.machine_check		= marvel_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= IO7_DAC_OFFSET,
+
+	.nr_irqs		= MARVEL_NR_IRQS,
+	.device_interrupt	= io7_device_interrupt,
+
+	.agp_info		= marvel_agp_info,
+
+	.smp_callin		= marvel_smp_callin,
+	.init_arch		= marvel_init_arch,
+	.init_irq		= marvel_init_irq,
+	.init_rtc		= marvel_init_rtc,
+	.init_pci		= marvel_init_pci,
+	.kill_arch		= marvel_kill_arch,
+	.pci_map_irq		= marvel_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(marvel_ev7)
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
new file mode 100644
index 000000000..e1bee8f84
--- /dev/null
+++ b/arch/alpha/kernel/sys_miata.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_miata.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999, 2000 Richard Henderson
+ *
+ * Code supporting the MIATA (EV56+PYXIS).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+static void 
+miata_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+	/*
+	 * I really hate to do this, but the MIATA SRM console ignores the
+	 *  low 8 bits in the interrupt summary register, and reports the
+	 *  vector 0x80 *lower* than I expected from the bit numbering in
+	 *  the documentation.
+	 * This was done because the low 8 summary bits really aren't used
+	 *  for reporting any interrupts (the PCI-ISA bridge, bit 7, isn't
+	 *  used for this purpose, as PIC interrupts are delivered as the
+	 *  vectors 0x800-0x8f0).
+	 * But I really don't want to change the fixup code for allocation
+	 *  of IRQs, nor the alpha_irq_mask maintenance stuff, both of which
+	 *  look nice and clean now.
+	 * So, here's this grotty hack... :-(
+	 */
+	if (irq >= 16)
+		irq = irq + 8;
+
+	handle_irq(irq);
+}
+
+static void __init
+miata_init_irq(void)
+{
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = miata_srm_device_interrupt;
+
+#if 0
+	/* These break on MiataGL so we'll try not to do it at all.  */
+	*(vulp)PYXIS_INT_HILO = 0x000000B2UL; mb();	/* ISA/NMI HI */
+	*(vulp)PYXIS_RT_COUNT = 0UL; mb();		/* clear count */
+#endif
+
+	init_i8259a_irqs();
+
+	/* Not interested in the bogus interrupts (3,10), Fan Fault (0),
+           NMI (1), or EIDE (9).
+
+	   We also disable the risers (4,5), since we don't know how to
+	   route the interrupts behind the bridge.  */
+	init_pyxis_irqs(0x63b0000);
+
+	common_init_isa_dma();
+	if (request_irq(16 + 2, no_action, 0, "halt-switch", NULL))
+		pr_err("Failed to register halt-switch interrupt\n");
+	if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+		pr_err("Failed to register timer-cascade interrupt\n");
+}
+
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ PYXIS_INT_REQ:
+ * Bit      Meaning
+ * 0        Fan Fault
+ * 1        NMI
+ * 2        Halt/Reset switch
+ * 3        none
+ * 4        CID0 (Riser ID)
+ * 5        CID1 (Riser ID)
+ * 6        Interval timer
+ * 7        PCI-ISA Bridge
+ * 8        Ethernet
+ * 9        EIDE (deprecated, ISA 14/15 used)
+ *10        none
+ *11        USB
+ *12        Interrupt Line A from slot 4
+ *13        Interrupt Line B from slot 4
+ *14        Interrupt Line C from slot 4
+ *15        Interrupt Line D from slot 4
+ *16        Interrupt Line A from slot 5
+ *17        Interrupt line B from slot 5
+ *18        Interrupt Line C from slot 5
+ *19        Interrupt Line D from slot 5
+ *20        Interrupt Line A from slot 1
+ *21        Interrupt Line B from slot 1
+ *22        Interrupt Line C from slot 1
+ *23        Interrupt Line D from slot 1
+ *24        Interrupt Line A from slot 2
+ *25        Interrupt Line B from slot 2
+ *26        Interrupt Line C from slot 2
+ *27        Interrupt Line D from slot 2
+ *27        Interrupt Line A from slot 3
+ *29        Interrupt Line B from slot 3
+ *30        Interrupt Line C from slot 3
+ *31        Interrupt Line D from slot 3
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  3       DC21142 Ethernet
+ *  4       EIDE CMD646
+ *  5       none
+ *  6       USB
+ *  7       PCI-ISA bridge
+ *  8       PCI-PCI Bridge      (SBU Riser)
+ *  9       none
+ * 10       none
+ * 11       PCI on board slot 4 (SBU Riser)
+ * 12       PCI on board slot 5 (SBU Riser)
+ *
+ *  These are behind the bridge, so I'm not sure what to do...
+ *
+ * 13       PCI on board slot 1 (SBU Riser)
+ * 14       PCI on board slot 2 (SBU Riser)
+ * 15       PCI on board slot 3 (SBU Riser)
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+
+static int
+miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        static char irq_tab[18][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{16+ 8, 16+ 8, 16+ 8, 16+ 8, 16+ 8},  /* IdSel 14,  DC21142 */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 15,  EIDE    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 16,  none    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 17,  none    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 18,  PCI-ISA */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 19,  PCI-PCI */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 20,  none    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 21,  none    */
+		{16+12, 16+12, 16+13, 16+14, 16+15},  /* IdSel 22,  slot 4  */
+		{16+16, 16+16, 16+17, 16+18, 16+19},  /* IdSel 23,  slot 5  */
+		/* the next 7 are actually on PCI bus 1, across the bridge */
+		{16+11, 16+11, 16+11, 16+11, 16+11},  /* IdSel 24,  QLISP/GL*/
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 25,  none    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 26,  none    */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 27,  none    */
+		{16+20, 16+20, 16+21, 16+22, 16+23},  /* IdSel 28,  slot 1  */
+		{16+24, 16+24, 16+25, 16+26, 16+27},  /* IdSel 29,  slot 2  */
+		{16+28, 16+28, 16+29, 16+30, 16+31},  /* IdSel 30,  slot 3  */
+		/* This bridge is on the main bus of the later orig MIATA */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 31,  PCI-PCI */
+        };
+	const long min_idsel = 3, max_idsel = 20, irqs_per_slot = 5;
+	
+	/* the USB function of the 82c693 has it's interrupt connected to 
+           the 2nd 8259 controller. So we have to check for it first. */
+
+	if((slot == 7) && (PCI_FUNC(dev->devfn) == 3)) {
+		u8 irq=0;
+		struct pci_dev *pdev = pci_get_slot(dev->bus, dev->devfn & ~7);
+		if(pdev == NULL || pci_read_config_byte(pdev, 0x40,&irq) != PCIBIOS_SUCCESSFUL) {
+			pci_dev_put(pdev);
+			return -1;
+		}
+		else	{
+			pci_dev_put(pdev);
+			return irq;
+		}
+	}
+
+	return COMMON_TABLE_LOOKUP;
+}
+
+static u8
+miata_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	int slot, pin = *pinp;
+
+	if (dev->bus->number == 0) {
+		slot = PCI_SLOT(dev->devfn);
+	}		
+	/* Check for the built-in bridge.  */
+	else if ((PCI_SLOT(dev->bus->self->devfn) == 8) ||
+		 (PCI_SLOT(dev->bus->self->devfn) == 20)) {
+		slot = PCI_SLOT(dev->devfn) + 9;
+	}
+	else 
+	{
+		/* Must be a card-based bridge.  */
+		do {
+			if ((PCI_SLOT(dev->bus->self->devfn) == 8) ||
+			    (PCI_SLOT(dev->bus->self->devfn) == 20)) {
+				slot = PCI_SLOT(dev->devfn) + 9;
+				break;
+			}
+			pin = pci_swizzle_interrupt_pin(dev, pin);
+
+			/* Move up the chain of bridges.  */
+			dev = dev->bus->self;
+			/* Slot of the next bridge.  */
+			slot = PCI_SLOT(dev->devfn);
+		} while (dev->bus->self);
+	}
+	*pinp = pin;
+	return slot;
+}
+
+static void __init
+miata_init_pci(void)
+{
+	cia_init_pci();
+	SMC669_Init(0); /* it might be a GL (fails harmlessly if not) */
+	es1888_init();
+}
+
+static void
+miata_kill_arch(int mode)
+{
+	cia_kill_arch(mode);
+
+#ifndef ALPHA_RESTORE_SRM_SETUP
+	switch(mode) {
+	case LINUX_REBOOT_CMD_RESTART:
+		/* Who said DEC engineers have no sense of humor? ;-)  */ 
+		if (alpha_using_srm) {
+			*(vuip) PYXIS_RESET = 0x0000dead; 
+			mb(); 
+		}
+		break;
+	case LINUX_REBOOT_CMD_HALT:
+		break;
+	case LINUX_REBOOT_CMD_POWER_OFF:
+		break;
+	}
+
+	halt();
+#endif
+}
+
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector miata_mv __initmv = {
+	.vector_name		= "Miata",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_PYXIS_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= PYXIS_DAC_OFFSET,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= pyxis_device_interrupt,
+
+	.init_arch		= pyxis_init_arch,
+	.init_irq		= miata_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= miata_init_pci,
+	.kill_arch		= miata_kill_arch,
+	.pci_map_irq		= miata_map_irq,
+	.pci_swizzle		= miata_swizzle,
+};
+ALIAS_MV(miata)
diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c
new file mode 100644
index 000000000..7690dfd57
--- /dev/null
+++ b/arch/alpha/kernel/sys_mikasa.c
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_mikasa.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the MIKASA (AlphaServer 1000).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/mce.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+static int cached_irq_mask;
+
+static inline void
+mikasa_update_irq_hw(int mask)
+{
+	outw(mask, 0x536);
+}
+
+static inline void
+mikasa_enable_irq(struct irq_data *d)
+{
+	mikasa_update_irq_hw(cached_irq_mask |= 1 << (d->irq - 16));
+}
+
+static void
+mikasa_disable_irq(struct irq_data *d)
+{
+	mikasa_update_irq_hw(cached_irq_mask &= ~(1 << (d->irq - 16)));
+}
+
+static struct irq_chip mikasa_irq_type = {
+	.name		= "MIKASA",
+	.irq_unmask	= mikasa_enable_irq,
+	.irq_mask	= mikasa_disable_irq,
+	.irq_mask_ack	= mikasa_disable_irq,
+};
+
+static void 
+mikasa_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary registers */
+	pld = (((~inw(0x534) & 0x0000ffffUL) << 16)
+	       | (((unsigned long) inb(0xa0)) << 8)
+	       | inb(0x20));
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i < 16) {
+			isa_device_interrupt(vector);
+		} else {
+			handle_irq(i);
+		}
+	}
+}
+
+static void __init
+mikasa_init_irq(void)
+{
+	long i;
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = srm_device_interrupt;
+
+	mikasa_update_irq_hw(0);
+
+	for (i = 16; i < 32; ++i) {
+		irq_set_chip_and_handler(i, &mikasa_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ 0x536:
+ * Bit      Meaning
+ * 0        Interrupt Line A from slot 0
+ * 1        Interrupt Line B from slot 0
+ * 2        Interrupt Line C from slot 0
+ * 3        Interrupt Line D from slot 0
+ * 4        Interrupt Line A from slot 1
+ * 5        Interrupt line B from slot 1
+ * 6        Interrupt Line C from slot 1
+ * 7        Interrupt Line D from slot 1
+ * 8        Interrupt Line A from slot 2
+ * 9        Interrupt Line B from slot 2
+ *10        Interrupt Line C from slot 2
+ *11        Interrupt Line D from slot 2
+ *12        NCR 810 SCSI
+ *13        Power Supply Fail
+ *14        Temperature Warn
+ *15        Reserved
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  6       NCR SCSI controller
+ *  7       Intel PCI-EISA bridge chip
+ * 11       PCI on board slot 0
+ * 12       PCI on board slot 1
+ * 13       PCI on board slot 2
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+
+static int
+mikasa_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[8][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{16+12, 16+12, 16+12, 16+12, 16+12},	/* IdSel 17,  SCSI */
+		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 18,  PCEB */
+		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 19,  ???? */
+		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 20,  ???? */
+		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 21,  ???? */
+		{ 16+0,  16+0,  16+1,  16+2,  16+3},	/* IdSel 22,  slot 0 */
+		{ 16+4,  16+4,  16+5,  16+6,  16+7},	/* IdSel 23,  slot 1 */
+		{ 16+8,  16+8,  16+9, 16+10, 16+11},	/* IdSel 24,  slot 2 */
+	};
+	const long min_idsel = 6, max_idsel = 13, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+
+#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
+static void
+mikasa_apecs_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+#define MCHK_NO_DEVSEL 0x205U
+#define MCHK_NO_TABT 0x204U
+
+	struct el_common *mchk_header;
+	unsigned int code;
+
+	mchk_header = (struct el_common *)la_ptr;
+
+	/* Clear the error before any reporting.  */
+	mb();
+	mb(); /* magic */
+	draina();
+	apecs_pci_clr_err();
+	wrmces(0x7);
+	mb();
+
+	code = mchk_header->code;
+	process_mcheck_info(vector, la_ptr, "MIKASA APECS",
+			    (mcheck_expected(0)
+			     && (code == MCHK_NO_DEVSEL
+			         || code == MCHK_NO_TABT)));
+}
+#endif
+
+
+/*
+ * The System Vector
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
+struct alpha_machine_vector mikasa_mv __initmv = {
+	.vector_name		= "Mikasa",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= mikasa_apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 32,
+	.device_interrupt	= mikasa_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= mikasa_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.pci_map_irq		= mikasa_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(mikasa)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PRIMO)
+struct alpha_machine_vector mikasa_primo_mv __initmv = {
+	.vector_name		= "Mikasa-Primo",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 32,
+	.device_interrupt	= mikasa_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= mikasa_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= cia_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= mikasa_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(mikasa_primo)
+#endif
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
new file mode 100644
index 000000000..96fd6ff3f
--- /dev/null
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_nautilus.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1998 Richard Henderson
+ *	Copyright (C) 1999 Alpha Processor, Inc.,
+ *		(David Daniel, Stig Telfer, Soohoon Lee)
+ *
+ * Code supporting NAUTILUS systems.
+ *
+ *
+ * NAUTILUS has the following I/O features:
+ *
+ * a) Driven by AMD 751 aka IRONGATE (northbridge):
+ *     4 PCI slots
+ *     1 AGP slot
+ *
+ * b) Driven by ALI M1543C (southbridge)
+ *     2 ISA slots
+ *     2 IDE connectors
+ *     1 dual drive capable FDD controller
+ *     2 serial ports
+ *     1 ECP/EPP/SP parallel port
+ *     2 USB ports
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/reboot.h>
+#include <linux/memblock.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_irongate.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "err_impl.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+static void __init
+nautilus_init_irq(void)
+{
+	if (alpha_using_srm) {
+		alpha_mv.device_interrupt = srm_device_interrupt;
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+static int
+nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/* Preserve the IRQ set up by the console.  */
+
+	u8 irq;
+	/* UP1500: AGP INTA is actually routed to IRQ 5, not IRQ 10 as
+	   console reports. Check the device id of AGP bridge to distinguish
+	   UP1500 from UP1000/1100. Note: 'pin' is 2 due to bridge swizzle. */
+	if (slot == 1 && pin == 2 &&
+	    dev->bus->self && dev->bus->self->device == 0x700f)
+		return 5;
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+	return irq;
+}
+
+void
+nautilus_kill_arch(int mode)
+{
+	struct pci_bus *bus = pci_isa_hose->bus;
+	u32 pmuport;
+	int off;
+
+	switch (mode) {
+	case LINUX_REBOOT_CMD_RESTART:
+		if (! alpha_using_srm) {
+			u8 t8;
+			pci_bus_read_config_byte(bus, 0x38, 0x43, &t8);
+			pci_bus_write_config_byte(bus, 0x38, 0x43, t8 | 0x80);
+			outb(1, 0x92);
+			outb(0, 0x92);
+			/* NOTREACHED */
+		}
+		break;
+
+	case LINUX_REBOOT_CMD_POWER_OFF:
+		/* Assume M1543C */
+		off = 0x2000;		/* SLP_TYPE = 0, SLP_EN = 1 */
+		pci_bus_read_config_dword(bus, 0x88, 0x10, &pmuport);
+		if (!pmuport) {
+			/* M1535D/D+ */
+			off = 0x3400;	/* SLP_TYPE = 5, SLP_EN = 1 */
+			pci_bus_read_config_dword(bus, 0x88, 0xe0, &pmuport);
+		}
+		pmuport &= 0xfffe;
+		outw(0xffff, pmuport);	/* Clear pending events. */
+		outw(off, pmuport + 4);
+		/* NOTREACHED */
+		break;
+	}
+}
+
+/* Perform analysis of a machine check that arrived from the system (NMI) */
+
+static void
+naut_sys_machine_check(unsigned long vector, unsigned long la_ptr,
+		       struct pt_regs *regs)
+{
+	printk("PC %lx RA %lx\n", regs->pc, regs->r26);
+	irongate_pci_clr_err();
+}
+
+/* Machine checks can come from two sources - those on the CPU and those
+   in the system.  They are analysed separately but all starts here.  */
+
+void
+nautilus_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+	char *mchk_class;
+
+	/* Now for some analysis.  Machine checks fall into two classes --
+	   those picked up by the system, and those picked up by the CPU.
+	   Add to that the two levels of severity - correctable or not.  */
+
+	if (vector == SCB_Q_SYSMCHK
+	    && ((IRONGATE0->dramms & 0x300) == 0x300)) {
+		unsigned long nmi_ctl;
+
+		/* Clear ALI NMI */
+		nmi_ctl = inb(0x61);
+		nmi_ctl |= 0x0c;
+		outb(nmi_ctl, 0x61);
+		nmi_ctl &= ~0x0c;
+		outb(nmi_ctl, 0x61);
+
+		/* Write again clears error bits.  */
+		IRONGATE0->stat_cmd = IRONGATE0->stat_cmd & ~0x100;
+		mb();
+		IRONGATE0->stat_cmd;
+
+		/* Write again clears error bits.  */
+		IRONGATE0->dramms = IRONGATE0->dramms;
+		mb();
+		IRONGATE0->dramms;
+
+		draina();
+		wrmces(0x7);
+		mb();
+		return;
+	}
+
+	if (vector == SCB_Q_SYSERR)
+		mchk_class = "Correctable";
+	else if (vector == SCB_Q_SYSMCHK)
+		mchk_class = "Fatal";
+	else {
+		ev6_machine_check(vector, la_ptr);
+		return;
+	}
+
+	printk(KERN_CRIT "NAUTILUS Machine check 0x%lx "
+			 "[%s System Machine Check (NMI)]\n",
+	       vector, mchk_class);
+
+	naut_sys_machine_check(vector, la_ptr, get_irq_regs());
+
+	/* Tell the PALcode to clear the machine check */
+	draina();
+	wrmces(0x7);
+	mb();
+}
+
+extern void pcibios_claim_one_bus(struct pci_bus *);
+
+static struct resource irongate_mem = {
+	.name	= "Irongate PCI MEM",
+	.flags	= IORESOURCE_MEM,
+};
+static struct resource busn_resource = {
+	.name	= "PCI busn",
+	.start	= 0,
+	.end	= 255,
+	.flags	= IORESOURCE_BUS,
+};
+
+void __init
+nautilus_init_pci(void)
+{
+	struct pci_controller *hose = hose_head;
+	struct pci_host_bridge *bridge;
+	struct pci_bus *bus;
+	unsigned long bus_align, bus_size, pci_mem;
+	unsigned long memtop = max_low_pfn << PAGE_SHIFT;
+
+	bridge = pci_alloc_host_bridge(0);
+	if (!bridge)
+		return;
+
+	/* Use default IO. */
+	pci_add_resource(&bridge->windows, &ioport_resource);
+	/* Irongate PCI memory aperture, calculate required size before
+	   setting it up. */
+	pci_add_resource(&bridge->windows, &irongate_mem);
+
+	pci_add_resource(&bridge->windows, &busn_resource);
+	bridge->dev.parent = NULL;
+	bridge->sysdata = hose;
+	bridge->busnr = 0;
+	bridge->ops = alpha_mv.pci_ops;
+	bridge->swizzle_irq = alpha_mv.pci_swizzle;
+	bridge->map_irq = alpha_mv.pci_map_irq;
+	bridge->size_windows = 1;
+
+	/* Scan our single hose.  */
+	if (pci_scan_root_bus_bridge(bridge)) {
+		pci_free_host_bridge(bridge);
+		return;
+	}
+	bus = hose->bus = bridge->bus;
+	pcibios_claim_one_bus(bus);
+
+	pci_bus_size_bridges(bus);
+
+	/* Now we've got the size and alignment of PCI memory resources
+	   stored in irongate_mem. Set up the PCI memory range: limit is
+	   hardwired to 0xffffffff, base must be aligned to 16Mb. */
+	bus_align = irongate_mem.start;
+	bus_size = irongate_mem.end + 1 - bus_align;
+	if (bus_align < 0x1000000UL)
+		bus_align = 0x1000000UL;
+
+	pci_mem = (0x100000000UL - bus_size) & -bus_align;
+	irongate_mem.start = pci_mem;
+	irongate_mem.end = 0xffffffffUL;
+
+	/* Register our newly calculated PCI memory window in the resource
+	   tree. */
+	if (request_resource(&iomem_resource, &irongate_mem) < 0)
+		printk(KERN_ERR "Failed to request MEM on hose 0\n");
+
+	printk(KERN_INFO "Irongate pci_mem %pR\n", &irongate_mem);
+
+	if (pci_mem < memtop)
+		memtop = pci_mem;
+	if (memtop > alpha_mv.min_mem_address) {
+		free_reserved_area(__va(alpha_mv.min_mem_address),
+				   __va(memtop), -1, NULL);
+		printk(KERN_INFO "nautilus_init_pci: %ldk freed\n",
+			(memtop - alpha_mv.min_mem_address) >> 10);
+	}
+	if ((IRONGATE0->dev_vendor >> 16) > 0x7006)	/* Albacore? */
+		IRONGATE0->pci_mem = pci_mem;
+
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
+}
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector nautilus_mv __initmv = {
+	.vector_name		= "Nautilus",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_IRONGATE_IO,
+	.machine_check		= nautilus_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= IRONGATE_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= isa_device_interrupt,
+
+	.init_arch		= irongate_init_arch,
+	.init_irq		= nautilus_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= nautilus_init_pci,
+	.kill_arch		= nautilus_kill_arch,
+	.pci_map_irq		= nautilus_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(nautilus)
diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c
new file mode 100644
index 000000000..47f3ce4f7
--- /dev/null
+++ b/arch/alpha/kernel/sys_noritake.c
@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_noritake.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the NORITAKE (AlphaServer 1000A), 
+ * CORELLE (AlphaServer 800), and ALCOR Primo (AlphaStation 600A).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/mce.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+/* Note mask bit is true for ENABLED irqs.  */
+static int cached_irq_mask;
+
+static inline void
+noritake_update_irq_hw(int irq, int mask)
+{
+	int port = 0x54a;
+	if (irq >= 32) {
+	    mask >>= 16;
+	    port = 0x54c;
+	}
+	outw(mask, port);
+}
+
+static void
+noritake_enable_irq(struct irq_data *d)
+{
+	noritake_update_irq_hw(d->irq, cached_irq_mask |= 1 << (d->irq - 16));
+}
+
+static void
+noritake_disable_irq(struct irq_data *d)
+{
+	noritake_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << (d->irq - 16)));
+}
+
+static struct irq_chip noritake_irq_type = {
+	.name		= "NORITAKE",
+	.irq_unmask	= noritake_enable_irq,
+	.irq_mask	= noritake_disable_irq,
+	.irq_mask_ack	= noritake_disable_irq,
+};
+
+static void 
+noritake_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	unsigned int i;
+
+	/* Read the interrupt summary registers of NORITAKE */
+	pld = (((unsigned long) inw(0x54c) << 32)
+	       | ((unsigned long) inw(0x54a) << 16)
+	       | ((unsigned long) inb(0xa0) << 8)
+	       | inb(0x20));
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i < 16) {
+			isa_device_interrupt(vector);
+		} else {
+			handle_irq(i);
+		}
+	}
+}
+
+static void 
+noritake_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+	/*
+	 * I really hate to do this, too, but the NORITAKE SRM console also
+	 * reports PCI vectors *lower* than I expected from the bit numbers
+	 * in the documentation.
+	 * But I really don't want to change the fixup code for allocation
+	 * of IRQs, nor the alpha_irq_mask maintenance stuff, both of which
+	 * look nice and clean now.
+	 * So, here's this additional grotty hack... :-(
+	 */
+	if (irq >= 16)
+		irq = irq + 1;
+
+	handle_irq(irq);
+}
+
+static void __init
+noritake_init_irq(void)
+{
+	long i;
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = noritake_srm_device_interrupt;
+
+	outw(0, 0x54a);
+	outw(0, 0x54c);
+
+	for (i = 16; i < 48; ++i) {
+		irq_set_chip_and_handler(i, &noritake_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ 0x542, summary register #1:
+ * Bit      Meaning
+ * 0        All valid ints from summary regs 2 & 3
+ * 1        QLOGIC ISP1020A SCSI
+ * 2        Interrupt Line A from slot 0
+ * 3        Interrupt Line B from slot 0
+ * 4        Interrupt Line A from slot 1
+ * 5        Interrupt line B from slot 1
+ * 6        Interrupt Line A from slot 2
+ * 7        Interrupt Line B from slot 2
+ * 8        Interrupt Line A from slot 3
+ * 9        Interrupt Line B from slot 3
+ *10        Interrupt Line A from slot 4
+ *11        Interrupt Line B from slot 4
+ *12        Interrupt Line A from slot 5
+ *13        Interrupt Line B from slot 5
+ *14        Interrupt Line A from slot 6
+ *15        Interrupt Line B from slot 6
+ *
+ * Summary @ 0x544, summary register #2:
+ * Bit      Meaning
+ * 0        OR of all unmasked ints in SR #2
+ * 1        OR of secondary bus ints
+ * 2        Interrupt Line C from slot 0
+ * 3        Interrupt Line D from slot 0
+ * 4        Interrupt Line C from slot 1
+ * 5        Interrupt line D from slot 1
+ * 6        Interrupt Line C from slot 2
+ * 7        Interrupt Line D from slot 2
+ * 8        Interrupt Line C from slot 3
+ * 9        Interrupt Line D from slot 3
+ *10        Interrupt Line C from slot 4
+ *11        Interrupt Line D from slot 4
+ *12        Interrupt Line C from slot 5
+ *13        Interrupt Line D from slot 5
+ *14        Interrupt Line C from slot 6
+ *15        Interrupt Line D from slot 6
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  7       Intel PCI-EISA bridge chip
+ *  8       DEC PCI-PCI bridge chip
+ * 11       PCI on board slot 0
+ * 12       PCI on board slot 1
+ * 13       PCI on board slot 2
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+
+static int
+noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[15][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		/* note: IDSELs 16, 17, and 25 are CORELLE only */
+		{ 16+1,  16+1,  16+1,  16+1,  16+1},  /* IdSel 16,  QLOGIC */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 17, S3 Trio64 */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 18,  PCEB */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 19,  PPB  */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 20,  ???? */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 21,  ???? */
+		{ 16+2,  16+2,  16+3,  32+2,  32+3},  /* IdSel 22,  slot 0 */
+		{ 16+4,  16+4,  16+5,  32+4,  32+5},  /* IdSel 23,  slot 1 */
+		{ 16+6,  16+6,  16+7,  32+6,  32+7},  /* IdSel 24,  slot 2 */
+		{ 16+8,  16+8,  16+9,  32+8,  32+9},  /* IdSel 25,  slot 3 */
+		/* The following 5 are actually on PCI bus 1, which is 
+		   across the built-in bridge of the NORITAKE only.  */
+		{ 16+1,  16+1,  16+1,  16+1,  16+1},  /* IdSel 16,  QLOGIC */
+		{ 16+8,  16+8,  16+9,  32+8,  32+9},  /* IdSel 17,  slot 3 */
+		{16+10, 16+10, 16+11, 32+10, 32+11},  /* IdSel 18,  slot 4 */
+		{16+12, 16+12, 16+13, 32+12, 32+13},  /* IdSel 19,  slot 5 */
+		{16+14, 16+14, 16+15, 32+14, 32+15},  /* IdSel 20,  slot 6 */
+	};
+	const long min_idsel = 5, max_idsel = 19, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static u8
+noritake_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	int slot, pin = *pinp;
+
+	if (dev->bus->number == 0) {
+		slot = PCI_SLOT(dev->devfn);
+	}
+	/* Check for the built-in bridge */
+	else if (PCI_SLOT(dev->bus->self->devfn) == 8) {
+		slot = PCI_SLOT(dev->devfn) + 15; /* WAG! */
+	}
+	else
+	{
+		/* Must be a card-based bridge.  */
+		do {
+			if (PCI_SLOT(dev->bus->self->devfn) == 8) {
+				slot = PCI_SLOT(dev->devfn) + 15;
+				break;
+			}
+			pin = pci_swizzle_interrupt_pin(dev, pin);
+
+			/* Move up the chain of bridges.  */
+			dev = dev->bus->self;
+			/* Slot of the next bridge.  */
+			slot = PCI_SLOT(dev->devfn);
+		} while (dev->bus->self);
+	}
+	*pinp = pin;
+	return slot;
+}
+
+#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
+static void
+noritake_apecs_machine_check(unsigned long vector, unsigned long la_ptr)
+{
+#define MCHK_NO_DEVSEL 0x205U
+#define MCHK_NO_TABT 0x204U
+
+        struct el_common *mchk_header;
+        unsigned int code;
+
+        mchk_header = (struct el_common *)la_ptr;
+
+        /* Clear the error before any reporting.  */
+        mb();
+        mb(); /* magic */
+        draina();
+        apecs_pci_clr_err();
+        wrmces(0x7);
+        mb();
+
+        code = mchk_header->code;
+        process_mcheck_info(vector, la_ptr, "NORITAKE APECS",
+                            (mcheck_expected(0)
+                             && (code == MCHK_NO_DEVSEL
+                                 || code == MCHK_NO_TABT)));
+}
+#endif
+
+
+/*
+ * The System Vectors
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO)
+struct alpha_machine_vector noritake_mv __initmv = {
+	.vector_name		= "Noritake",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= noritake_apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= noritake_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= noritake_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.pci_map_irq		= noritake_map_irq,
+	.pci_swizzle		= noritake_swizzle,
+};
+ALIAS_MV(noritake)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PRIMO)
+struct alpha_machine_vector noritake_primo_mv __initmv = {
+	.vector_name		= "Noritake-Primo",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= noritake_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= noritake_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= cia_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= noritake_map_irq,
+	.pci_swizzle		= noritake_swizzle,
+};
+ALIAS_MV(noritake_primo)
+#endif
diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c
new file mode 100644
index 000000000..b5846ffda
--- /dev/null
+++ b/arch/alpha/kernel/sys_rawhide.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_rawhide.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the RAWHIDE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_mcpcia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/*
+ * HACK ALERT! only the boot cpu is used for interrupts.
+ */
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+
+static unsigned int hose_irq_masks[4] = {
+	0xff0000, 0xfe0000, 0xff0000, 0xff0000
+};
+static unsigned int cached_irq_masks[4];
+DEFINE_SPINLOCK(rawhide_irq_lock);
+
+static inline void
+rawhide_update_irq_hw(int hose, int mask)
+{
+	*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(hose)) = mask;
+	mb();
+	*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(hose));
+}
+
+#define hose_exists(h) \
+  (((h) < MCPCIA_MAX_HOSES) && (cached_irq_masks[(h)] != 0))
+
+static inline void 
+rawhide_enable_irq(struct irq_data *d)
+{
+	unsigned int mask, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask = 1 << irq;
+
+	spin_lock(&rawhide_irq_lock);
+	mask |= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static void 
+rawhide_disable_irq(struct irq_data *d)
+{
+	unsigned int mask, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask = ~(1 << irq) | hose_irq_masks[hose];
+
+	spin_lock(&rawhide_irq_lock);
+	mask &= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static void
+rawhide_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned int mask, mask1, hose;
+	unsigned int irq = d->irq;
+
+	irq -= 16;
+	hose = irq / 24;
+	if (!hose_exists(hose)) /* if hose non-existent, exit */
+		return;
+
+	irq -= hose * 24;
+	mask1 = 1 << irq;
+	mask = ~mask1 | hose_irq_masks[hose];
+
+	spin_lock(&rawhide_irq_lock);
+
+	mask &= cached_irq_masks[hose];
+	cached_irq_masks[hose] = mask;
+	rawhide_update_irq_hw(hose, mask);
+
+	/* Clear the interrupt.  */
+	*(vuip)MCPCIA_INT_REQ(MCPCIA_HOSE2MID(hose)) = mask1;
+
+	spin_unlock(&rawhide_irq_lock);
+}
+
+static struct irq_chip rawhide_irq_type = {
+	.name		= "RAWHIDE",
+	.irq_unmask	= rawhide_enable_irq,
+	.irq_mask	= rawhide_disable_irq,
+	.irq_mask_ack	= rawhide_mask_and_ack_irq,
+};
+
+static void 
+rawhide_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+        /*
+         * The RAWHIDE SRM console reports PCI interrupts with a vector
+	 * 0x80 *higher* than one might expect, as PCI IRQ 0 (ie bit 0)
+	 * shows up as IRQ 24, etc, etc. We adjust it down by 8 to have
+	 * it line up with the actual bit numbers from the REQ registers,
+	 * which is how we manage the interrupts/mask. Sigh...
+	 *
+	 * Also, PCI #1 interrupts are offset some more... :-(
+         */
+
+	if (irq == 52) {
+		/* SCSI on PCI1 is special.  */
+		irq = 72;
+	}
+
+	/* Adjust by which hose it is from.  */
+	irq -= ((irq + 16) >> 2) & 0x38;
+
+	handle_irq(irq);
+}
+
+static void __init
+rawhide_init_irq(void)
+{
+	struct pci_controller *hose;
+	long i;
+
+	mcpcia_init_hoses();
+
+	/* Clear them all; only hoses that exist will be non-zero. */
+	for (i = 0; i < MCPCIA_MAX_HOSES; i++) cached_irq_masks[i] = 0;
+
+	for (hose = hose_head; hose; hose = hose->next) {
+		unsigned int h = hose->index;
+		unsigned int mask = hose_irq_masks[h];
+
+		cached_irq_masks[h] = mask;
+		*(vuip)MCPCIA_INT_MASK0(MCPCIA_HOSE2MID(h)) = mask;
+		*(vuip)MCPCIA_INT_MASK1(MCPCIA_HOSE2MID(h)) = 0;
+	}
+
+	for (i = 16; i < 128; ++i) {
+		irq_set_chip_and_handler(i, &rawhide_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ MCPCIA_PCI0_INT_REQ:
+ * Bit      Meaning
+ * 0        Interrupt Line A from slot 2 PCI0
+ * 1        Interrupt Line B from slot 2 PCI0
+ * 2        Interrupt Line C from slot 2 PCI0
+ * 3        Interrupt Line D from slot 2 PCI0
+ * 4        Interrupt Line A from slot 3 PCI0
+ * 5        Interrupt Line B from slot 3 PCI0
+ * 6        Interrupt Line C from slot 3 PCI0
+ * 7        Interrupt Line D from slot 3 PCI0
+ * 8        Interrupt Line A from slot 4 PCI0
+ * 9        Interrupt Line B from slot 4 PCI0
+ * 10       Interrupt Line C from slot 4 PCI0
+ * 11       Interrupt Line D from slot 4 PCI0
+ * 12       Interrupt Line A from slot 5 PCI0
+ * 13       Interrupt Line B from slot 5 PCI0
+ * 14       Interrupt Line C from slot 5 PCI0
+ * 15       Interrupt Line D from slot 5 PCI0
+ * 16       EISA interrupt (PCI 0) or SCSI interrupt (PCI 1)
+ * 17-23    NA
+ *
+ * IdSel	
+ *   1	 EISA bridge (PCI bus 0 only)
+ *   2 	 PCI option slot 2
+ *   3	 PCI option slot 3
+ *   4   PCI option slot 4
+ *   5   PCI option slot 5
+ * 
+ */
+
+static int
+rawhide_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ 16+16, 16+16, 16+16, 16+16, 16+16}, /* IdSel 1 SCSI PCI 1 */
+		{ 16+ 0, 16+ 0, 16+ 1, 16+ 2, 16+ 3}, /* IdSel 2 slot 2 */
+		{ 16+ 4, 16+ 4, 16+ 5, 16+ 6, 16+ 7}, /* IdSel 3 slot 3 */
+		{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 4 slot 4 */
+		{ 16+12, 16+12, 16+13, 16+14, 16+15}  /* IdSel 5 slot 5 */
+	};
+	const long min_idsel = 1, max_idsel = 5, irqs_per_slot = 5;
+
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+	if (irq >= 0)
+		irq += 24 * hose->index;
+	return irq;
+}
+
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector rawhide_mv __initmv = {
+	.vector_name		= "Rawhide",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_MCPCIA_IO,
+	.machine_check		= mcpcia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= MCPCIA_DEFAULT_MEM_BASE,
+	.pci_dac_offset		= MCPCIA_DAC_OFFSET,
+
+	.nr_irqs		= 128,
+	.device_interrupt	= rawhide_srm_device_interrupt,
+
+	.init_arch		= mcpcia_init_arch,
+	.init_irq		= rawhide_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= NULL,
+	.pci_map_irq		= rawhide_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(rawhide)
diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c
new file mode 100644
index 000000000..4b1c8d85c
--- /dev/null
+++ b/arch/alpha/kernel/sys_ruffian.c
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_ruffian.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999, 2000 Richard Henderson
+ *
+ * Code supporting the RUFFIAN.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+static void __init
+ruffian_init_irq(void)
+{
+	/* Invert 6&7 for i82371 */
+	*(vulp)PYXIS_INT_HILO  = 0x000000c0UL; mb();
+	*(vulp)PYXIS_INT_CNFG  = 0x00002064UL; mb();	 /* all clear */
+
+	outb(0x11,0xA0);
+	outb(0x08,0xA1);
+	outb(0x02,0xA1);
+	outb(0x01,0xA1);
+	outb(0xFF,0xA1);
+	
+	outb(0x11,0x20);
+	outb(0x00,0x21);
+	outb(0x04,0x21);
+	outb(0x01,0x21);
+	outb(0xFF,0x21);
+	
+	/* Finish writing the 82C59A PIC Operation Control Words */
+	outb(0x20,0xA0);
+	outb(0x20,0x20);
+	
+	init_i8259a_irqs();
+
+	/* Not interested in the bogus interrupts (0,3,6),
+	   NMI (1), HALT (2), flash (5), or 21142 (8).  */
+	init_pyxis_irqs(0x16f0000);
+
+	common_init_isa_dma();
+}
+
+#define RUFFIAN_LATCH	DIV_ROUND_CLOSEST(PIT_TICK_RATE, HZ)
+
+static void __init
+ruffian_init_rtc(void)
+{
+	/* Ruffian does not have the RTC connected to the CPU timer
+	   interrupt.  Instead, it uses the PIT connected to IRQ 0.  */
+
+	/* Setup interval timer.  */
+	outb(0x34, 0x43);		/* binary, mode 2, LSB/MSB, ch 0 */
+	outb(RUFFIAN_LATCH & 0xff, 0x40);	/* LSB */
+	outb(RUFFIAN_LATCH >> 8, 0x40);		/* MSB */
+
+	outb(0xb6, 0x43);		/* pit counter 2: speaker */
+	outb(0x31, 0x42);
+	outb(0x13, 0x42);
+
+	if (request_irq(0, rtc_timer_interrupt, 0, "timer", NULL))
+		pr_err("Failed to request irq 0 (timer)\n");
+}
+
+static void
+ruffian_kill_arch (int mode)
+{
+	cia_kill_arch(mode);
+#if 0
+	/* This only causes re-entry to ARCSBIOS */
+	/* Perhaps this works for other PYXIS as well?  */
+	*(vuip) PYXIS_RESET = 0x0000dead;
+	mb();
+#endif
+}
+
+/*
+ *  Interrupt routing:
+ *
+ *		Primary bus
+ *	  IdSel		INTA	INTB	INTC	INTD
+ * 21052   13		  -	  -	  -	  -
+ * SIO	   14		 23	  -	  -	  -
+ * 21143   15		 44	  -	  -	  -
+ * Slot 0  17		 43	 42	 41	 40
+ *
+ *		Secondary bus
+ *	  IdSel		INTA	INTB	INTC	INTD
+ * Slot 0   8 (18)	 19	 18	 17	 16
+ * Slot 1   9 (19)	 31	 30	 29	 28
+ * Slot 2  10 (20)	 27	 26	 25	 24
+ * Slot 3  11 (21)	 39	 38	 37	 36
+ * Slot 4  12 (22)	 35	 34	 33	 32
+ * 53c875  13 (23)	 20	  -	  -	  -
+ *
+ */
+
+static int
+ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        static char irq_tab[11][5] = {
+	      /*INT  INTA INTB INTC INTD */
+		{-1,  -1,  -1,  -1,  -1},  /* IdSel 13,  21052	     */
+		{-1,  -1,  -1,  -1,  -1},  /* IdSel 14,  SIO	     */
+		{44,  44,  44,  44,  44},  /* IdSel 15,  21143	     */
+		{-1,  -1,  -1,  -1,  -1},  /* IdSel 16,  none	     */
+		{43,  43,  42,  41,  40},  /* IdSel 17,  64-bit slot */
+		/* the next 6 are actually on PCI bus 1, across the bridge */
+		{19,  19,  18,  17,  16},  /* IdSel  8,  slot 0	     */
+		{31,  31,  30,  29,  28},  /* IdSel  9,  slot 1	     */
+		{27,  27,  26,  25,  24},  /* IdSel 10,  slot 2	     */
+		{39,  39,  38,  37,  36},  /* IdSel 11,  slot 3	     */
+		{35,  35,  34,  33,  32},  /* IdSel 12,  slot 4	     */
+		{20,  20,  20,  20,  20},  /* IdSel 13,  53c875	     */
+        };
+	const long min_idsel = 13, max_idsel = 23, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static u8
+ruffian_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	int slot, pin = *pinp;
+
+	if (dev->bus->number == 0) {
+		slot = PCI_SLOT(dev->devfn);
+	}		
+	/* Check for the built-in bridge.  */
+	else if (PCI_SLOT(dev->bus->self->devfn) == 13) {
+		slot = PCI_SLOT(dev->devfn) + 10;
+	}
+	else 
+	{
+		/* Must be a card-based bridge.  */
+		do {
+			if (PCI_SLOT(dev->bus->self->devfn) == 13) {
+				slot = PCI_SLOT(dev->devfn) + 10;
+				break;
+			}
+			pin = pci_swizzle_interrupt_pin(dev, pin);
+
+			/* Move up the chain of bridges.  */
+			dev = dev->bus->self;
+			/* Slot of the next bridge.  */
+			slot = PCI_SLOT(dev->devfn);
+		} while (dev->bus->self);
+	}
+	*pinp = pin;
+	return slot;
+}
+
+#ifdef BUILDING_FOR_MILO
+/*
+ * The DeskStation Ruffian motherboard firmware does not place
+ * the memory size in the PALimpure area.  Therefore, we use
+ * the Bank Configuration Registers in PYXIS to obtain the size.
+ */
+static unsigned long __init
+ruffian_get_bank_size(unsigned long offset)
+{
+	unsigned long bank_addr, bank, ret = 0;
+
+	/* Valid offsets are: 0x800, 0x840 and 0x880
+	   since Ruffian only uses three banks.  */
+	bank_addr = (unsigned long)PYXIS_MCR + offset;
+	bank = *(vulp)bank_addr;
+
+	/* Check BANK_ENABLE */
+	if (bank & 0x01) {
+		static unsigned long size[] __initdata = {
+			0x40000000UL, /* 0x00,   1G */
+			0x20000000UL, /* 0x02, 512M */
+			0x10000000UL, /* 0x04, 256M */
+			0x08000000UL, /* 0x06, 128M */
+			0x04000000UL, /* 0x08,  64M */
+			0x02000000UL, /* 0x0a,  32M */
+			0x01000000UL, /* 0x0c,  16M */
+			0x00800000UL, /* 0x0e,   8M */
+			0x80000000UL, /* 0x10,   2G */
+		};
+
+		bank = (bank & 0x1e) >> 1;
+		if (bank < ARRAY_SIZE(size))
+			ret = size[bank];
+	}
+
+	return ret;
+}
+#endif /* BUILDING_FOR_MILO */
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector ruffian_mv __initmv = {
+	.vector_name		= "Ruffian",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_PYXIS_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= PYXIS_DAC_OFFSET,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= pyxis_device_interrupt,
+
+	.init_arch		= pyxis_init_arch,
+	.init_irq		= ruffian_init_irq,
+	.init_rtc		= ruffian_init_rtc,
+	.init_pci		= cia_init_pci,
+	.kill_arch		= ruffian_kill_arch,
+	.pci_map_irq		= ruffian_map_irq,
+	.pci_swizzle		= ruffian_swizzle,
+};
+ALIAS_MV(ruffian)
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
new file mode 100644
index 000000000..94046f9ae
--- /dev/null
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_rx164.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the RX164 (PCA56+POLARIS).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_polaris.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+/* Note mask bit is true for ENABLED irqs.  */
+static unsigned long cached_irq_mask;
+
+static inline void
+rx164_update_irq_hw(unsigned long mask)
+{
+	volatile unsigned int *irq_mask;
+
+	irq_mask = (void *)(POLARIS_DENSE_CONFIG_BASE + 0x74);
+	*irq_mask = mask;
+	mb();
+	*irq_mask;
+}
+
+static inline void
+rx164_enable_irq(struct irq_data *d)
+{
+	rx164_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16));
+}
+
+static void
+rx164_disable_irq(struct irq_data *d)
+{
+	rx164_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16)));
+}
+
+static struct irq_chip rx164_irq_type = {
+	.name		= "RX164",
+	.irq_unmask	= rx164_enable_irq,
+	.irq_mask	= rx164_disable_irq,
+	.irq_mask_ack	= rx164_disable_irq,
+};
+
+static void 
+rx164_device_interrupt(unsigned long vector)
+{
+	unsigned long pld;
+	volatile unsigned int *dirr;
+	long i;
+
+	/* Read the interrupt summary register.  On Polaris, this is
+	   the DIRR register in PCI config space (offset 0x84).  */
+	dirr = (void *)(POLARIS_DENSE_CONFIG_BASE + 0x84);
+	pld = *dirr;
+
+	/*
+	 * Now for every possible bit set, work through them and call
+	 * the appropriate interrupt handler.
+	 */
+	while (pld) {
+		i = ffz(~pld);
+		pld &= pld - 1; /* clear least bit set */
+		if (i == 20) {
+			isa_no_iack_sc_device_interrupt(vector);
+		} else {
+			handle_irq(16+i);
+		}
+	}
+}
+
+static void __init
+rx164_init_irq(void)
+{
+	long i;
+
+	rx164_update_irq_hw(0);
+	for (i = 16; i < 40; ++i) {
+		irq_set_chip_and_handler(i, &rx164_irq_type, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+
+	if (request_irq(16 + 20, no_action, 0, "isa-cascade", NULL))
+		pr_err("Failed to register isa-cascade interrupt\n");
+}
+
+
+/*
+ * The RX164 changed its interrupt routing between pass1 and pass2...
+ *
+ * PASS1:
+ *
+ *      Slot    IDSEL   INTA    INTB    INTC    INTD    
+ *      0       6       5       10      15      20
+ *      1       7       4       9       14      19
+ *      2       5       3       8       13      18
+ *      3       9       2       7       12      17
+ *      4       10      1       6       11      16
+ *
+ * PASS2:
+ *      Slot    IDSEL   INTA    INTB    INTC    INTD    
+ *      0       5       1       7       12      17
+ *      1       6       2       8       13      18
+ *      2       8       3       9       14      19
+ *      3       9       4       10      15      20
+ *      4       10      5       11      16      6
+ *      
+ */
+
+/*
+ * IdSel       
+ *   5  32 bit PCI option slot 0
+ *   6  64 bit PCI option slot 1
+ *   7  PCI-ISA bridge
+ *   7  64 bit PCI option slot 2
+ *   9  32 bit PCI option slot 3
+ *  10  PCI-PCI bridge
+ * 
+ */
+
+static int
+rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+#if 0
+	static char irq_tab_pass1[6][5] __initdata = {
+	  /*INT   INTA  INTB  INTC   INTD */
+	  { 16+3, 16+3, 16+8, 16+13, 16+18},      /* IdSel 5,  slot 2 */
+	  { 16+5, 16+5, 16+10, 16+15, 16+20},     /* IdSel 6,  slot 0 */
+	  { 16+4, 16+4, 16+9, 16+14, 16+19},      /* IdSel 7,  slot 1 */
+	  { -1,     -1,    -1,    -1,   -1},      /* IdSel 8, PCI/ISA bridge */
+	  { 16+2, 16+2, 16+7, 16+12, 16+17},      /* IdSel 9,  slot 3 */
+	  { 16+1, 16+1, 16+6, 16+11, 16+16},      /* IdSel 10, slot 4 */
+	};
+#else
+	static char irq_tab[6][5] = {
+	  /*INT   INTA  INTB  INTC   INTD */
+	  { 16+0, 16+0, 16+6, 16+11, 16+16},      /* IdSel 5,  slot 0 */
+	  { 16+1, 16+1, 16+7, 16+12, 16+17},      /* IdSel 6,  slot 1 */
+	  { -1,     -1,    -1,    -1,   -1},      /* IdSel 7, PCI/ISA bridge */
+	  { 16+2, 16+2, 16+8, 16+13, 16+18},      /* IdSel 8,  slot 2 */
+	  { 16+3, 16+3, 16+9, 16+14, 16+19},      /* IdSel 9,  slot 3 */
+	  { 16+4, 16+4, 16+10, 16+15, 16+5},      /* IdSel 10, PCI-PCI */
+	};
+#endif
+	const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5;
+
+	/* JRP - Need to figure out how to distinguish pass1 from pass2,
+	   and use the correct table.  */
+	return COMMON_TABLE_LOOKUP;
+}
+
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector rx164_mv __initmv = {
+	.vector_name		= "RX164",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_POLARIS_IO,
+	.machine_check		= polaris_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 40,
+	.device_interrupt	= rx164_device_interrupt,
+
+	.init_arch		= polaris_init_arch,
+	.init_irq		= rx164_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= NULL,
+	.pci_map_irq		= rx164_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(rx164)
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
new file mode 100644
index 000000000..930005b2f
--- /dev/null
+++ b/arch/alpha/kernel/sys_sable.c
@@ -0,0 +1,635 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_sable.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the Sable, Sable-Gamma, and Lynx systems.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_t2.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+DEFINE_SPINLOCK(sable_lynx_irq_lock);
+
+typedef struct irq_swizzle_struct
+{
+	char irq_to_mask[64];
+	char mask_to_irq[64];
+
+	/* Note mask bit is true for DISABLED irqs.  */
+	unsigned long shadow_mask;
+
+	void (*update_irq_hw)(unsigned long bit, unsigned long mask);
+	void (*ack_irq_hw)(unsigned long bit);
+
+} irq_swizzle_t;
+
+static irq_swizzle_t *sable_lynx_irq_swizzle;
+
+static void sable_lynx_init_irq(int nr_of_irqs);
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE)
+
+/***********************************************************************/
+/*
+ *   For SABLE, which is really baroque, we manage 40 IRQ's, but the
+ *   hardware really only supports 24, not via normal ISA PIC,
+ *   but cascaded custom 8259's, etc.
+ *	 0-7  (char at 536)
+ *	 8-15 (char at 53a)
+ *	16-23 (char at 53c)
+ *
+ * Summary Registers (536/53a/53c):
+ *
+ * Bit      Meaning               Kernel IRQ
+ *------------------------------------------
+ * 0        PCI slot 0			34
+ * 1        NCR810 (builtin)		33
+ * 2        TULIP (builtin)		32
+ * 3        mouse			12
+ * 4        PCI slot 1			35
+ * 5        PCI slot 2			36
+ * 6        keyboard			1
+ * 7        floppy			6
+ * 8        COM2			3
+ * 9        parallel port		7
+ *10        EISA irq 3			-
+ *11        EISA irq 4			-
+ *12        EISA irq 5			5
+ *13        EISA irq 6			-
+ *14        EISA irq 7			-
+ *15        COM1			4
+ *16        EISA irq 9			9
+ *17        EISA irq 10			10
+ *18        EISA irq 11			11
+ *19        EISA irq 12			-
+ *20        EISA irq 13			-
+ *21        EISA irq 14			14
+ *22        NC				15
+ *23        IIC				-
+ */
+
+static void
+sable_update_irq_hw(unsigned long bit, unsigned long mask)
+{
+	int port = 0x537;
+
+	if (bit >= 16) {
+		port = 0x53d;
+		mask >>= 16;
+	} else if (bit >= 8) {
+		port = 0x53b;
+		mask >>= 8;
+	}
+
+	outb(mask, port);
+}
+
+static void
+sable_ack_irq_hw(unsigned long bit)
+{
+	int port, val1, val2;
+
+	if (bit >= 16) {
+		port = 0x53c;
+		val1 = 0xE0 | (bit - 16);
+		val2 = 0xE0 | 4;
+	} else if (bit >= 8) {
+		port = 0x53a;
+		val1 = 0xE0 | (bit - 8);
+		val2 = 0xE0 | 3;
+	} else {
+		port = 0x536;
+		val1 = 0xE0 | (bit - 0);
+		val2 = 0xE0 | 1;
+	}
+
+	outb(val1, port);	/* ack the slave */
+	outb(val2, 0x534);	/* ack the master */
+}
+
+static irq_swizzle_t sable_irq_swizzle = {
+	{
+		-1,  6, -1,  8, 15, 12,  7,  9,	/* pseudo PIC  0-7  */
+		-1, 16, 17, 18,  3, -1, 21, 22,	/* pseudo PIC  8-15 */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo EISA 0-7  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo EISA 8-15  */
+		 2,  1,  0,  4,  5, -1, -1, -1,	/* pseudo PCI */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1 	/*  */
+	},
+	{
+		34, 33, 32, 12, 35, 36,  1,  6,	/* mask 0-7  */
+		 3,  7, -1, -1,  5, -1, -1,  4,	/* mask 8-15  */
+		 9, 10, 11, -1, -1, 14, 15, -1,	/* mask 16-23  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
+		-1, -1, -1, -1, -1, -1, -1, -1	/*  */
+	},
+	-1,
+	sable_update_irq_hw,
+	sable_ack_irq_hw
+};
+
+static void __init
+sable_init_irq(void)
+{
+	outb(-1, 0x537);	/* slave 0 */
+	outb(-1, 0x53b);	/* slave 1 */
+	outb(-1, 0x53d);	/* slave 2 */
+	outb(0x44, 0x535);	/* enable cascades in master */
+
+	sable_lynx_irq_swizzle = &sable_irq_swizzle;
+	sable_lynx_init_irq(40);
+}
+
+/*
+ * PCI Fixup configuration for ALPHA SABLE (2100).
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  0       TULIP
+ *  1       SCSI
+ *  2       PCI-EISA bridge
+ *  3       none
+ *  4       none
+ *  5       none
+ *  6       PCI on board slot 0
+ *  7       PCI on board slot 1
+ *  8       PCI on board slot 2
+ *   
+ *
+ * This two layered interrupt approach means that we allocate IRQ 16 and 
+ * above for PCI interrupts.  The IRQ relates to which bit the interrupt
+ * comes in on.  This makes interrupt processing much easier.
+ */
+/*
+ * NOTE: the IRQ assignments below are arbitrary, but need to be consistent
+ * with the values in the irq swizzling tables above.
+ */
+
+static int
+sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[9][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ 32+0,  32+0,  32+0,  32+0,  32+0},  /* IdSel 0,  TULIP  */
+		{ 32+1,  32+1,  32+1,  32+1,  32+1},  /* IdSel 1,  SCSI   */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 2,  SIO   */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 3,  none   */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 4,  none   */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 5,  none   */
+		{ 32+2,  32+2,  32+2,  32+2,  32+2},  /* IdSel 6,  slot 0 */
+		{ 32+3,  32+3,  32+3,  32+3,  32+3},  /* IdSel 7,  slot 1 */
+		{ 32+4,  32+4,  32+4,  32+4,  32+4}   /* IdSel 8,  slot 2 */
+	};
+	long min_idsel = 0, max_idsel = 8, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) */
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
+
+/***********************************************************************/
+/* LYNX hardware specifics
+ */
+/*
+ *   For LYNX, which is also baroque, we manage 64 IRQs, via a custom IC.
+ *
+ * Bit      Meaning               Kernel IRQ
+ *------------------------------------------
+ * 0        
+ * 1        
+ * 2        
+ * 3        mouse			12
+ * 4        
+ * 5        
+ * 6        keyboard			1
+ * 7        floppy			6
+ * 8        COM2			3
+ * 9        parallel port		7
+ *10        EISA irq 3			-
+ *11        EISA irq 4			-
+ *12        EISA irq 5			5
+ *13        EISA irq 6			-
+ *14        EISA irq 7			-
+ *15        COM1			4
+ *16        EISA irq 9			9
+ *17        EISA irq 10			10
+ *18        EISA irq 11			11
+ *19        EISA irq 12			-
+ *20        
+ *21        EISA irq 14			14
+ *22        EISA irq 15			15
+ *23        IIC				-
+ *24        VGA (builtin)               -
+ *25
+ *26
+ *27
+ *28        NCR810 (builtin)		28
+ *29
+ *30
+ *31
+ *32        PCI 0 slot 4 A primary bus  32
+ *33        PCI 0 slot 4 B primary bus  33
+ *34        PCI 0 slot 4 C primary bus  34
+ *35        PCI 0 slot 4 D primary bus
+ *36        PCI 0 slot 5 A primary bus
+ *37        PCI 0 slot 5 B primary bus
+ *38        PCI 0 slot 5 C primary bus
+ *39        PCI 0 slot 5 D primary bus
+ *40        PCI 0 slot 6 A primary bus
+ *41        PCI 0 slot 6 B primary bus
+ *42        PCI 0 slot 6 C primary bus
+ *43        PCI 0 slot 6 D primary bus
+ *44        PCI 0 slot 7 A primary bus
+ *45        PCI 0 slot 7 B primary bus
+ *46        PCI 0 slot 7 C primary bus
+ *47        PCI 0 slot 7 D primary bus
+ *48        PCI 0 slot 0 A secondary bus
+ *49        PCI 0 slot 0 B secondary bus
+ *50        PCI 0 slot 0 C secondary bus
+ *51        PCI 0 slot 0 D secondary bus
+ *52        PCI 0 slot 1 A secondary bus
+ *53        PCI 0 slot 1 B secondary bus
+ *54        PCI 0 slot 1 C secondary bus
+ *55        PCI 0 slot 1 D secondary bus
+ *56        PCI 0 slot 2 A secondary bus
+ *57        PCI 0 slot 2 B secondary bus
+ *58        PCI 0 slot 2 C secondary bus
+ *59        PCI 0 slot 2 D secondary bus
+ *60        PCI 0 slot 3 A secondary bus
+ *61        PCI 0 slot 3 B secondary bus
+ *62        PCI 0 slot 3 C secondary bus
+ *63        PCI 0 slot 3 D secondary bus
+ */
+
+static void
+lynx_update_irq_hw(unsigned long bit, unsigned long mask)
+{
+	/*
+	 * Write the AIR register on the T3/T4 with the
+	 * address of the IC mask register (offset 0x40)
+	 */
+	*(vulp)T2_AIR = 0x40;
+	mb();
+	*(vulp)T2_AIR; /* re-read to force write */
+	mb();
+	*(vulp)T2_DIR = mask;    
+	mb();
+	mb();
+}
+
+static void
+lynx_ack_irq_hw(unsigned long bit)
+{
+	*(vulp)T2_VAR = (u_long) bit;
+	mb();
+	mb();
+}
+
+static irq_swizzle_t lynx_irq_swizzle = {
+	{ /* irq_to_mask */
+		-1,  6, -1,  8, 15, 12,  7,  9,	/* pseudo PIC  0-7  */
+		-1, 16, 17, 18,  3, -1, 21, 22,	/* pseudo PIC  8-15 */
+		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo */
+		-1, -1, -1, -1, 28, -1, -1, -1,	/* pseudo */
+		32, 33, 34, 35, 36, 37, 38, 39,	/* mask 32-39 */
+		40, 41, 42, 43, 44, 45, 46, 47,	/* mask 40-47 */
+		48, 49, 50, 51, 52, 53, 54, 55,	/* mask 48-55 */
+		56, 57, 58, 59, 60, 61, 62, 63	/* mask 56-63 */
+	},
+	{ /* mask_to_irq */
+		-1, -1, -1, 12, -1, -1,  1,  6,	/* mask 0-7   */
+		 3,  7, -1, -1,  5, -1, -1,  4,	/* mask 8-15  */
+		 9, 10, 11, -1, -1, 14, 15, -1,	/* mask 16-23 */
+		-1, -1, -1, -1, 28, -1, -1, -1,	/* mask 24-31 */
+		32, 33, 34, 35, 36, 37, 38, 39,	/* mask 32-39 */
+		40, 41, 42, 43, 44, 45, 46, 47,	/* mask 40-47 */
+		48, 49, 50, 51, 52, 53, 54, 55,	/* mask 48-55 */
+		56, 57, 58, 59, 60, 61, 62, 63	/* mask 56-63 */
+	},
+	-1,
+	lynx_update_irq_hw,
+	lynx_ack_irq_hw
+};
+
+static void __init
+lynx_init_irq(void)
+{
+	sable_lynx_irq_swizzle = &lynx_irq_swizzle;
+	sable_lynx_init_irq(64);
+}
+
+/*
+ * PCI Fixup configuration for ALPHA LYNX (2100A)
+ *
+ * The device to slot mapping looks like:
+ *
+ * Slot     Device
+ *  0       none
+ *  1       none
+ *  2       PCI-EISA bridge
+ *  3       PCI-PCI bridge
+ *  4       NCR 810 (Demi-Lynx only)
+ *  5       none
+ *  6       PCI on board slot 4
+ *  7       PCI on board slot 5
+ *  8       PCI on board slot 6
+ *  9       PCI on board slot 7
+ *
+ * And behind the PPB we have:
+ *
+ * 11       PCI on board slot 0
+ * 12       PCI on board slot 1
+ * 13       PCI on board slot 2
+ * 14       PCI on board slot 3
+ */
+/*
+ * NOTE: the IRQ assignments below are arbitrary, but need to be consistent
+ * with the values in the irq swizzling tables above.
+ */
+
+static int
+lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[19][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 13,  PCEB   */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 14,  PPB    */
+		{   28,    28,    28,    28,    28},  /* IdSel 15,  NCR demi */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 16,  none   */
+		{   32,    32,    33,    34,    35},  /* IdSel 17,  slot 4 */
+		{   36,    36,    37,    38,    39},  /* IdSel 18,  slot 5 */
+		{   40,    40,    41,    42,    43},  /* IdSel 19,  slot 6 */
+		{   44,    44,    45,    46,    47},  /* IdSel 20,  slot 7 */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 22,  none   */
+		/* The following are actually behind the PPB. */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 16   none */
+		{   28,    28,    28,    28,    28},  /* IdSel 17   NCR lynx */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 18   none */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 19   none */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 20   none */
+		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 21   none */
+		{   48,    48,    49,    50,    51},  /* IdSel 22   slot 0 */
+		{   52,    52,    53,    54,    55},  /* IdSel 23   slot 1 */
+		{   56,    56,    57,    58,    59},  /* IdSel 24   slot 2 */
+		{   60,    60,    61,    62,    63}   /* IdSel 25   slot 3 */
+	};
+	const long min_idsel = 2, max_idsel = 20, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static u8
+lynx_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	int slot, pin = *pinp;
+
+	if (dev->bus->number == 0) {
+		slot = PCI_SLOT(dev->devfn);
+	}
+	/* Check for the built-in bridge */
+	else if (PCI_SLOT(dev->bus->self->devfn) == 3) {
+		slot = PCI_SLOT(dev->devfn) + 11;
+	}
+	else
+	{
+		/* Must be a card-based bridge.  */
+		do {
+			if (PCI_SLOT(dev->bus->self->devfn) == 3) {
+				slot = PCI_SLOT(dev->devfn) + 11;
+				break;
+			}
+			pin = pci_swizzle_interrupt_pin(dev, pin);
+
+			/* Move up the chain of bridges.  */
+			dev = dev->bus->self;
+			/* Slot of the next bridge.  */
+			slot = PCI_SLOT(dev->devfn);
+		} while (dev->bus->self);
+	}
+	*pinp = pin;
+	return slot;
+}
+
+#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) */
+
+/***********************************************************************/
+/* GENERIC irq routines */
+
+static inline void
+sable_lynx_enable_irq(struct irq_data *d)
+{
+	unsigned long bit, mask;
+
+	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
+	spin_lock(&sable_lynx_irq_lock);
+	mask = sable_lynx_irq_swizzle->shadow_mask &= ~(1UL << bit);
+	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
+	spin_unlock(&sable_lynx_irq_lock);
+#if 0
+	printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
+	       __func__, mask, bit, irq);
+#endif
+}
+
+static void
+sable_lynx_disable_irq(struct irq_data *d)
+{
+	unsigned long bit, mask;
+
+	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
+	spin_lock(&sable_lynx_irq_lock);
+	mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
+	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
+	spin_unlock(&sable_lynx_irq_lock);
+#if 0
+	printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
+	       __func__, mask, bit, irq);
+#endif
+}
+
+static void
+sable_lynx_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned long bit, mask;
+
+	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
+	spin_lock(&sable_lynx_irq_lock);
+	mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
+	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
+	sable_lynx_irq_swizzle->ack_irq_hw(bit);
+	spin_unlock(&sable_lynx_irq_lock);
+}
+
+static struct irq_chip sable_lynx_irq_type = {
+	.name		= "SABLE/LYNX",
+	.irq_unmask	= sable_lynx_enable_irq,
+	.irq_mask	= sable_lynx_disable_irq,
+	.irq_mask_ack	= sable_lynx_mask_and_ack_irq,
+};
+
+static void 
+sable_lynx_srm_device_interrupt(unsigned long vector)
+{
+	/* Note that the vector reported by the SRM PALcode corresponds
+	   to the interrupt mask bits, but we have to manage via the
+	   so-called legacy IRQs for many common devices.  */
+
+	int bit, irq;
+
+	bit = (vector - 0x800) >> 4;
+	irq = sable_lynx_irq_swizzle->mask_to_irq[bit];
+#if 0
+	printk("%s: vector 0x%lx bit 0x%x irq 0x%x\n",
+	       __func__, vector, bit, irq);
+#endif
+	handle_irq(irq);
+}
+
+static void __init
+sable_lynx_init_irq(int nr_of_irqs)
+{
+	long i;
+
+	for (i = 0; i < nr_of_irqs; ++i) {
+		irq_set_chip_and_handler(i, &sable_lynx_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	common_init_isa_dma();
+}
+
+static void __init
+sable_lynx_init_pci(void)
+{
+	common_init_pci();
+}
+
+/*****************************************************************/
+/*
+ * The System Vectors
+ *
+ * In order that T2_HAE_ADDRESS should be a constant, we play
+ * these games with GAMMA_BIAS.
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || \
+    (defined(CONFIG_ALPHA_SABLE) && !defined(CONFIG_ALPHA_GAMMA))
+#undef GAMMA_BIAS
+#define GAMMA_BIAS 0
+struct alpha_machine_vector sable_mv __initmv = {
+	.vector_name		= "Sable",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_T2_IO,
+	.machine_check		= t2_machine_check,
+	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= T2_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 40,
+	.device_interrupt	= sable_lynx_srm_device_interrupt,
+
+	.init_arch		= t2_init_arch,
+	.init_irq		= sable_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= sable_lynx_init_pci,
+	.kill_arch		= t2_kill_arch,
+	.pci_map_irq		= sable_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .t2 = {
+	    .gamma_bias		= 0
+	} }
+};
+ALIAS_MV(sable)
+#endif /* GENERIC || (SABLE && !GAMMA) */
+
+#if defined(CONFIG_ALPHA_GENERIC) || \
+    (defined(CONFIG_ALPHA_SABLE) && defined(CONFIG_ALPHA_GAMMA))
+#undef GAMMA_BIAS
+#define GAMMA_BIAS _GAMMA_BIAS
+struct alpha_machine_vector sable_gamma_mv __initmv = {
+	.vector_name		= "Sable-Gamma",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_T2_IO,
+	.machine_check		= t2_machine_check,
+	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= T2_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 40,
+	.device_interrupt	= sable_lynx_srm_device_interrupt,
+
+	.init_arch		= t2_init_arch,
+	.init_irq		= sable_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= sable_lynx_init_pci,
+	.kill_arch		= t2_kill_arch,
+	.pci_map_irq		= sable_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .t2 = {
+	    .gamma_bias		= _GAMMA_BIAS
+	} }
+};
+ALIAS_MV(sable_gamma)
+#endif /* GENERIC || (SABLE && GAMMA) */
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
+#undef GAMMA_BIAS
+#define GAMMA_BIAS _GAMMA_BIAS
+struct alpha_machine_vector lynx_mv __initmv = {
+	.vector_name		= "Lynx",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_T2_IO,
+	.machine_check		= t2_machine_check,
+	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= EISA_DEFAULT_IO_BASE,
+	.min_mem_address	= T2_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 64,
+	.device_interrupt	= sable_lynx_srm_device_interrupt,
+
+	.init_arch		= t2_init_arch,
+	.init_irq		= lynx_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= sable_lynx_init_pci,
+	.kill_arch		= t2_kill_arch,
+	.pci_map_irq		= lynx_map_irq,
+	.pci_swizzle		= lynx_swizzle,
+
+	.sys = { .t2 = {
+	    .gamma_bias		= _GAMMA_BIAS
+	} }
+};
+ALIAS_MV(lynx)
+#endif /* GENERIC || LYNX */
diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c
new file mode 100644
index 000000000..7c420d8da
--- /dev/null
+++ b/arch/alpha/kernel/sys_sio.c
@@ -0,0 +1,484 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_sio.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code for all boards that route the PCI interrupts through the SIO
+ * PCI/ISA bridge.  This includes Noname (AXPpci33), Multia (UDB),
+ * Kenetics's Platform 2000, Avanti (AlphaStation), XL, and AlphaBook1.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/screen_info.h>
+
+#include <asm/compiler.h>
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_apecs.h>
+#include <asm/core_lca.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+#include "pc873xx.h"
+
+#if defined(ALPHA_RESTORE_SRM_SETUP)
+/* Save LCA configuration data as the console had it set up.  */
+struct 
+{
+	unsigned int orig_route_tab; /* for SAVE/RESTORE */
+} saved_config __attribute((common));
+#endif
+
+
+static void __init
+sio_init_irq(void)
+{
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = srm_device_interrupt;
+
+	init_i8259a_irqs();
+	common_init_isa_dma();
+}
+
+static inline void __init
+alphabook1_init_arch(void)
+{
+	/* The AlphaBook1 has LCD video fixed at 800x600,
+	   37 rows and 100 cols. */
+	screen_info.orig_y = 37;
+	screen_info.orig_video_cols = 100;
+	screen_info.orig_video_lines = 37;
+
+	lca_init_arch();
+}
+
+
+/*
+ * sio_route_tab selects irq routing in PCI/ISA bridge so that:
+ *		PIRQ0 -> irq 15
+ *		PIRQ1 -> irq  9
+ *		PIRQ2 -> irq 10
+ *		PIRQ3 -> irq 11
+ *
+ * This probably ought to be configurable via MILO.  For
+ * example, sound boards seem to like using IRQ 9.
+ *
+ * This is NOT how we should do it. PIRQ0-X should have
+ * their own IRQs, the way intel uses the IO-APIC IRQs.
+ */
+
+static void __init
+sio_pci_route(void)
+{
+	unsigned int orig_route_tab;
+
+	/* First, ALWAYS read and print the original setting. */
+	pci_bus_read_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60,
+				  &orig_route_tab);
+	printk("%s: PIRQ original 0x%x new 0x%x\n", __func__,
+	       orig_route_tab, alpha_mv.sys.sio.route_tab);
+
+#if defined(ALPHA_RESTORE_SRM_SETUP)
+	saved_config.orig_route_tab = orig_route_tab;
+#endif
+
+	/* Now override with desired setting. */
+	pci_bus_write_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60,
+				   alpha_mv.sys.sio.route_tab);
+}
+
+static bool sio_pci_dev_irq_needs_level(const struct pci_dev *dev)
+{
+	if ((dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) &&
+	    (dev->class >> 8 != PCI_CLASS_BRIDGE_PCMCIA))
+		return false;
+
+	return true;
+}
+
+static unsigned int __init
+sio_collect_irq_levels(void)
+{
+	unsigned int level_bits = 0;
+	struct pci_dev *dev = NULL;
+
+	/* Iterate through the devices, collecting IRQ levels.  */
+	for_each_pci_dev(dev) {
+		if (!sio_pci_dev_irq_needs_level(dev))
+			continue;
+
+		if (dev->irq)
+			level_bits |= (1 << dev->irq);
+	}
+	return level_bits;
+}
+
+static void __sio_fixup_irq_levels(unsigned int level_bits, bool reset)
+{
+	unsigned int old_level_bits;
+
+	/*
+	 * Now, make all PCI interrupts level sensitive.  Notice:
+	 * these registers must be accessed byte-wise.  inw()/outw()
+	 * don't work.
+	 *
+	 * Make sure to turn off any level bits set for IRQs 9,10,11,15,
+	 *  so that the only bits getting set are for devices actually found.
+	 * Note that we do preserve the remainder of the bits, which we hope
+	 *  will be set correctly by ARC/SRM.
+	 *
+	 * Note: we at least preserve any level-set bits on AlphaBook1
+	 */
+	old_level_bits = inb(0x4d0) | (inb(0x4d1) << 8);
+
+	if (reset)
+		old_level_bits &= 0x71ff;
+
+	level_bits |= old_level_bits;
+
+	outb((level_bits >> 0) & 0xff, 0x4d0);
+	outb((level_bits >> 8) & 0xff, 0x4d1);
+}
+
+static inline void
+sio_fixup_irq_levels(unsigned int level_bits)
+{
+	__sio_fixup_irq_levels(level_bits, true);
+}
+
+static inline int
+noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	/*
+	 * The Noname board has 5 PCI slots with each of the 4
+	 * interrupt pins routed to different pins on the PCI/ISA
+	 * bridge (PIRQ0-PIRQ3).  The table below is based on
+	 * information available at:
+	 *
+	 *   http://ftp.digital.com/pub/DEC/axppci/ref_interrupts.txt
+	 *
+	 * I have no information on the Avanti interrupt routing, but
+	 * the routing seems to be identical to the Noname except
+	 * that the Avanti has an additional slot whose routing I'm
+	 * unsure of.
+	 *
+	 * pirq_tab[0] is a fake entry to deal with old PCI boards
+	 * that have the interrupt pin number hardwired to 0 (meaning
+	 * that they use the default INTA line, if they are interrupt
+	 * driven at all).
+	 */
+	static char irq_tab[][5] = {
+		/*INT A   B   C   D */
+		{ 3,  3,  3,  3,  3}, /* idsel  6 (53c810) */ 
+		{-1, -1, -1, -1, -1}, /* idsel  7 (SIO: PCI/ISA bridge) */
+		{ 2,  2, -1, -1, -1}, /* idsel  8 (Hack: slot closest ISA) */
+		{-1, -1, -1, -1, -1}, /* idsel  9 (unused) */
+		{-1, -1, -1, -1, -1}, /* idsel 10 (unused) */
+		{ 0,  0,  2,  1,  0}, /* idsel 11 KN25_PCI_SLOT0 */
+		{ 1,  1,  0,  2,  1}, /* idsel 12 KN25_PCI_SLOT1 */
+		{ 2,  2,  1,  0,  2}, /* idsel 13 KN25_PCI_SLOT2 */
+		{ 0,  0,  0,  0,  0}, /* idsel 14 AS255 TULIP */
+	};
+	const long min_idsel = 6, max_idsel = 14, irqs_per_slot = 5;
+	int irq = COMMON_TABLE_LOOKUP, tmp;
+	tmp = __kernel_extbl(alpha_mv.sys.sio.route_tab, irq);
+
+	irq = irq >= 0 ? tmp : -1;
+
+	/* Fixup IRQ level if an actual IRQ mapping is detected */
+	if (sio_pci_dev_irq_needs_level(dev) && irq >= 0)
+		__sio_fixup_irq_levels(1 << irq, false);
+
+	return irq;
+}
+
+static inline int
+p2k_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[][5] = {
+		/*INT A   B   C   D */
+		{ 0,  0, -1, -1, -1}, /* idsel  6 (53c810) */
+		{-1, -1, -1, -1, -1}, /* idsel  7 (SIO: PCI/ISA bridge) */
+		{ 1,  1,  2,  3,  0}, /* idsel  8 (slot A) */
+		{ 2,  2,  3,  0,  1}, /* idsel  9 (slot B) */
+		{-1, -1, -1, -1, -1}, /* idsel 10 (unused) */
+		{-1, -1, -1, -1, -1}, /* idsel 11 (unused) */
+		{ 3,  3, -1, -1, -1}, /* idsel 12 (CMD0646) */
+	};
+	const long min_idsel = 6, max_idsel = 12, irqs_per_slot = 5;
+	int irq = COMMON_TABLE_LOOKUP, tmp;
+	tmp = __kernel_extbl(alpha_mv.sys.sio.route_tab, irq);
+	return irq >= 0 ? tmp : -1;
+}
+
+static inline void __init
+noname_init_pci(void)
+{
+	common_init_pci();
+	sio_pci_route();
+	sio_fixup_irq_levels(sio_collect_irq_levels());
+
+	if (pc873xx_probe() == -1) {
+		printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+	} else {
+		printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+			pc873xx_get_model(), pc873xx_get_base());
+
+		/* Enabling things in the Super IO chip doesn't actually
+		 * configure and enable things, the legacy drivers still
+		 * need to do the actual configuration and enabling.
+		 * This only unblocks them.
+		 */
+
+#if !defined(CONFIG_ALPHA_AVANTI)
+		/* Don't bother on the Avanti family.
+		 * None of them had on-board IDE.
+		 */
+		pc873xx_enable_ide();
+#endif
+		pc873xx_enable_epp19();
+	}
+}
+
+static inline void __init
+alphabook1_init_pci(void)
+{
+	struct pci_dev *dev;
+	unsigned char orig, config;
+
+	common_init_pci();
+	sio_pci_route();
+
+	/*
+	 * On the AlphaBook1, the PCMCIA chip (Cirrus 6729)
+	 * is sensitive to PCI bus bursts, so we must DISABLE
+	 * burst mode for the NCR 8xx SCSI... :-(
+	 *
+	 * Note that the NCR810 SCSI driver must preserve the
+	 * setting of the bit in order for this to work.  At the
+	 * moment (2.0.29), ncr53c8xx.c does NOT do this, but
+	 * 53c7,8xx.c DOES.
+	 */
+
+	dev = NULL;
+	while ((dev = pci_get_device(PCI_VENDOR_ID_NCR, PCI_ANY_ID, dev))) {
+		if (dev->device == PCI_DEVICE_ID_NCR_53C810
+		    || dev->device == PCI_DEVICE_ID_NCR_53C815
+		    || dev->device == PCI_DEVICE_ID_NCR_53C820
+		    || dev->device == PCI_DEVICE_ID_NCR_53C825) {
+			unsigned long io_port;
+			unsigned char ctest4;
+
+			io_port = dev->resource[0].start;
+			ctest4 = inb(io_port+0x21);
+			if (!(ctest4 & 0x80)) {
+				printk("AlphaBook1 NCR init: setting"
+				       " burst disable\n");
+				outb(ctest4 | 0x80, io_port+0x21);
+			}
+                }
+	}
+
+	/* Do not set *ANY* level triggers for AlphaBook1. */
+	sio_fixup_irq_levels(0);
+
+	/* Make sure that register PR1 indicates 1Mb mem */
+	outb(0x0f, 0x3ce); orig = inb(0x3cf);   /* read PR5  */
+	outb(0x0f, 0x3ce); outb(0x05, 0x3cf);   /* unlock PR0-4 */
+	outb(0x0b, 0x3ce); config = inb(0x3cf); /* read PR1 */
+	if ((config & 0xc0) != 0xc0) {
+		printk("AlphaBook1 VGA init: setting 1Mb memory\n");
+		config |= 0xc0;
+		outb(0x0b, 0x3ce); outb(config, 0x3cf); /* write PR1 */
+	}
+	outb(0x0f, 0x3ce); outb(orig, 0x3cf); /* (re)lock PR0-4 */
+}
+
+void
+sio_kill_arch(int mode)
+{
+#if defined(ALPHA_RESTORE_SRM_SETUP)
+	/* Since we cannot read the PCI DMA Window CSRs, we
+	 * cannot restore them here.
+	 *
+	 * However, we CAN read the PIRQ route register, so restore it
+	 * now...
+	 */
+ 	pci_bus_write_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60,
+				   saved_config.orig_route_tab);
+#endif
+}
+
+
+/*
+ * The System Vectors
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_BOOK1)
+struct alpha_machine_vector alphabook1_mv __initmv = {
+	.vector_name		= "AlphaBook1",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_LCA_IO,
+	.machine_check		= lca_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= isa_device_interrupt,
+
+	.init_arch		= alphabook1_init_arch,
+	.init_irq		= sio_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= alphabook1_init_pci,
+	.kill_arch		= sio_kill_arch,
+	.pci_map_irq		= noname_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .sio = {
+		/* NCR810 SCSI is 14, PCMCIA controller is 15.  */
+		.route_tab	= 0x0e0f0a0a,
+	}}
+};
+ALIAS_MV(alphabook1)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_AVANTI)
+struct alpha_machine_vector avanti_mv __initmv = {
+	.vector_name		= "Avanti",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= isa_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= sio_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= noname_init_pci,
+	.kill_arch		= sio_kill_arch,
+	.pci_map_irq		= noname_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .sio = {
+		.route_tab	= 0x0b0a050f, /* leave 14 for IDE, 9 for SND */
+	}}
+};
+ALIAS_MV(avanti)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_NONAME)
+struct alpha_machine_vector noname_mv __initmv = {
+	.vector_name		= "Noname",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_LCA_IO,
+	.machine_check		= lca_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= srm_device_interrupt,
+
+	.init_arch		= lca_init_arch,
+	.init_irq		= sio_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= noname_init_pci,
+	.kill_arch		= sio_kill_arch,
+	.pci_map_irq		= noname_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .sio = {
+		/* For UDB, the only available PCI slot must not map to IRQ 9,
+		   since that's the builtin MSS sound chip. That PCI slot
+		   will map to PIRQ1 (for INTA at least), so we give it IRQ 15
+		   instead.
+
+		   Unfortunately we have to do this for NONAME as well, since
+		   they are co-indicated when the platform type "Noname" is
+		   selected... :-(  */
+
+		.route_tab	= 0x0b0a0f0d,
+	}}
+};
+ALIAS_MV(noname)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_P2K)
+struct alpha_machine_vector p2k_mv __initmv = {
+	.vector_name		= "Platform2000",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_LCA_IO,
+	.machine_check		= lca_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= APECS_AND_LCA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= srm_device_interrupt,
+
+	.init_arch		= lca_init_arch,
+	.init_irq		= sio_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= noname_init_pci,
+	.kill_arch		= sio_kill_arch,
+	.pci_map_irq		= p2k_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .sio = {
+		.route_tab	= 0x0b0a090f,
+	}}
+};
+ALIAS_MV(p2k)
+#endif
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_XL)
+struct alpha_machine_vector xl_mv __initmv = {
+	.vector_name		= "XL",
+	DO_EV4_MMU,
+	DO_DEFAULT_RTC,
+	DO_APECS_IO,
+	.machine_check		= apecs_machine_check,
+	.max_isa_dma_address	= ALPHA_XL_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= XL_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 16,
+	.device_interrupt	= isa_device_interrupt,
+
+	.init_arch		= apecs_init_arch,
+	.init_irq		= sio_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= noname_init_pci,
+	.kill_arch		= sio_kill_arch,
+	.pci_map_irq		= noname_map_irq,
+	.pci_swizzle		= common_swizzle,
+
+	.sys = { .sio = {
+		.route_tab	= 0x0b0a090f,
+	}}
+};
+ALIAS_MV(xl)
+#endif
diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c
new file mode 100644
index 000000000..dd9de84b6
--- /dev/null
+++ b/arch/alpha/kernel/sys_sx164.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_sx164.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999, 2000 Richard Henderson
+ *
+ * Code supporting the SX164 (PCA56+PYXIS).
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_cia.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+#include <asm/special_insns.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+
+static void __init
+sx164_init_irq(void)
+{
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
+	outb(0, DMA2_MASK_REG);
+
+	if (alpha_using_srm)
+		alpha_mv.device_interrupt = srm_device_interrupt;
+
+	init_i8259a_irqs();
+
+	/* Not interested in the bogus interrupts (0,3,4,5,40-47),
+	   NMI (1), or HALT (2).  */
+	if (alpha_using_srm)
+		init_srm_irqs(40, 0x3f0000);
+	else
+		init_pyxis_irqs(0xff00003f0000UL);
+
+	if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+		pr_err("Failed to register timer-cascade interrupt\n");
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary @ PYXIS_INT_REQ:
+ * Bit      Meaning
+ * 0        RSVD
+ * 1        NMI
+ * 2        Halt/Reset switch
+ * 3        MBZ
+ * 4        RAZ
+ * 5        RAZ
+ * 6        Interval timer (RTC)
+ * 7        PCI-ISA Bridge
+ * 8        Interrupt Line A from slot 3
+ * 9        Interrupt Line A from slot 2
+ *10        Interrupt Line A from slot 1
+ *11        Interrupt Line A from slot 0
+ *12        Interrupt Line B from slot 3
+ *13        Interrupt Line B from slot 2
+ *14        Interrupt Line B from slot 1
+ *15        Interrupt line B from slot 0
+ *16        Interrupt Line C from slot 3
+ *17        Interrupt Line C from slot 2
+ *18        Interrupt Line C from slot 1
+ *19        Interrupt Line C from slot 0
+ *20        Interrupt Line D from slot 3
+ *21        Interrupt Line D from slot 2
+ *22        Interrupt Line D from slot 1
+ *23        Interrupt Line D from slot 0
+ *
+ * IdSel       
+ *   5  32 bit PCI option slot 2
+ *   6  64 bit PCI option slot 0
+ *   7  64 bit PCI option slot 1
+ *   8  Cypress I/O
+ *   9  32 bit PCI option slot 3
+ */
+
+static int
+sx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[5][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ 16+ 9, 16+ 9, 16+13, 16+17, 16+21}, /* IdSel 5 slot 2 J17 */
+		{ 16+11, 16+11, 16+15, 16+19, 16+23}, /* IdSel 6 slot 0 J19 */
+		{ 16+10, 16+10, 16+14, 16+18, 16+22}, /* IdSel 7 slot 1 J18 */
+		{    -1,    -1,    -1,	  -1,    -1}, /* IdSel 8 SIO        */
+		{ 16+ 8, 16+ 8, 16+12, 16+16, 16+20}  /* IdSel 9 slot 3 J15 */
+	};
+	const long min_idsel = 5, max_idsel = 9, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static void __init
+sx164_init_pci(void)
+{
+	cia_init_pci();
+	SMC669_Init(0);
+}
+
+static void __init
+sx164_init_arch(void)
+{
+	/*
+	 * OSF palcode v1.23 forgets to enable PCA56 Motion Video
+	 * Instructions. Let's enable it.
+	 * We have to check palcode revision because CSERVE interface
+	 * is subject to change without notice. For example, it
+	 * has been changed completely since v1.16 (found in MILO
+	 * distribution). -ink
+	 */
+	struct percpu_struct *cpu = (struct percpu_struct*)
+		((char*)hwrpb + hwrpb->processor_offset);
+
+	if (amask(AMASK_MAX) != 0
+	    && alpha_using_srm
+	    && (cpu->pal_revision & 0xffff) <= 0x117) {
+		__asm__ __volatile__(
+		"lda	$16,8($31)\n"
+		"call_pal 9\n"		/* Allow PALRES insns in kernel mode */
+		".long  0x64000118\n\n"	/* hw_mfpr $0,icsr */
+		"ldah	$16,(1<<(19-16))($31)\n"
+		"or	$0,$16,$0\n"	/* set MVE bit */
+		".long  0x74000118\n"	/* hw_mtpr $0,icsr */
+		"lda	$16,9($31)\n"
+		"call_pal 9"		/* Disable PALRES insns */
+		: : : "$0", "$16");
+		printk("PCA56 MVI set enabled\n");
+	}
+
+	pyxis_init_arch();
+}
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector sx164_mv __initmv = {
+	.vector_name		= "SX164",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_PYXIS_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= PYXIS_DAC_OFFSET,
+
+	.nr_irqs		= 48,
+	.device_interrupt	= pyxis_device_interrupt,
+
+	.init_arch		= sx164_init_arch,
+	.init_irq		= sx164_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= sx164_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= sx164_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(sx164)
diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c
new file mode 100644
index 000000000..9e2adb69b
--- /dev/null
+++ b/arch/alpha/kernel/sys_takara.c
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_takara.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *
+ * Code supporting the TAKARA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_cia.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+#include "pc873xx.h"
+
+/* Note mask bit is true for DISABLED irqs.  */
+static unsigned long cached_irq_mask[2] = { -1, -1 };
+
+static inline void
+takara_update_irq_hw(unsigned long irq, unsigned long mask)
+{
+	int regaddr;
+
+	mask = (irq >= 64 ? mask << 16 : mask >> ((irq - 16) & 0x30));
+	regaddr = 0x510 + (((irq - 16) >> 2) & 0x0c);
+	outl(mask & 0xffff0000UL, regaddr);
+}
+
+static inline void
+takara_enable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned long mask;
+	mask = (cached_irq_mask[irq >= 64] &= ~(1UL << (irq & 63)));
+	takara_update_irq_hw(irq, mask);
+}
+
+static void
+takara_disable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned long mask;
+	mask = (cached_irq_mask[irq >= 64] |= 1UL << (irq & 63));
+	takara_update_irq_hw(irq, mask);
+}
+
+static struct irq_chip takara_irq_type = {
+	.name		= "TAKARA",
+	.irq_unmask	= takara_enable_irq,
+	.irq_mask	= takara_disable_irq,
+	.irq_mask_ack	= takara_disable_irq,
+};
+
+static void
+takara_device_interrupt(unsigned long vector)
+{
+	unsigned intstatus;
+
+	/*
+	 * The PALcode will have passed us vectors 0x800 or 0x810,
+	 * which are fairly arbitrary values and serve only to tell
+	 * us whether an interrupt has come in on IRQ0 or IRQ1. If
+	 * it's IRQ1 it's a PCI interrupt; if it's IRQ0, it's
+	 * probably ISA, but PCI interrupts can come through IRQ0
+	 * as well if the interrupt controller isn't in accelerated
+	 * mode.
+	 *
+	 * OTOH, the accelerator thing doesn't seem to be working
+	 * overly well, so what we'll do instead is try directly
+	 * examining the Master Interrupt Register to see if it's a
+	 * PCI interrupt, and if _not_ then we'll pass it on to the
+	 * ISA handler.
+	 */
+
+	intstatus = inw(0x500) & 15;
+	if (intstatus) {
+		/*
+		 * This is a PCI interrupt. Check each bit and
+		 * despatch an interrupt if it's set.
+		 */
+
+		if (intstatus & 8) handle_irq(16+3);
+		if (intstatus & 4) handle_irq(16+2);
+		if (intstatus & 2) handle_irq(16+1);
+		if (intstatus & 1) handle_irq(16+0);
+	} else {
+		isa_device_interrupt (vector);
+	}
+}
+
+static void 
+takara_srm_device_interrupt(unsigned long vector)
+{
+	int irq = (vector - 0x800) >> 4;
+	handle_irq(irq);
+}
+
+static void __init
+takara_init_irq(void)
+{
+	long i;
+
+	init_i8259a_irqs();
+
+	if (alpha_using_srm) {
+		alpha_mv.device_interrupt = takara_srm_device_interrupt;
+	} else {
+		unsigned int ctlreg = inl(0x500);
+
+		/* Return to non-accelerated mode.  */
+		ctlreg &= ~0x8000;
+		outl(ctlreg, 0x500);
+
+		/* Enable the PCI interrupt register.  */
+		ctlreg = 0x05107c00;
+		outl(ctlreg, 0x500);
+	}
+
+	for (i = 16; i < 128; i += 16)
+		takara_update_irq_hw(i, -1);
+
+	for (i = 16; i < 128; ++i) {
+		irq_set_chip_and_handler(i, &takara_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+
+	common_init_isa_dma();
+}
+
+
+/*
+ * The Takara has PCI devices 1, 2, and 3 configured to slots 20,
+ * 19, and 18 respectively, in the default configuration. They can
+ * also be jumpered to slots 8, 7, and 6 respectively, which is fun
+ * because the SIO ISA bridge can also be slot 7. However, the SIO
+ * doesn't explicitly generate PCI-type interrupts, so we can
+ * assign it whatever the hell IRQ we like and it doesn't matter.
+ */
+
+static int
+takara_map_irq_srm(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[15][5] = {
+		{ 16+3, 16+3, 16+3, 16+3, 16+3},   /* slot  6 == device 3 */
+		{ 16+2, 16+2, 16+2, 16+2, 16+2},   /* slot  7 == device 2 */
+		{ 16+1, 16+1, 16+1, 16+1, 16+1},   /* slot  8 == device 1 */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot  9 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 10 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 11 == nothing */
+		/* These are behind the bridges.  */
+		{   12,   12,   13,   14,   15},   /* slot 12 == nothing */
+		{    8,    8,    9,   19,   11},   /* slot 13 == nothing */
+		{    4,    4,    5,    6,    7},   /* slot 14 == nothing */
+		{    0,    0,    1,    2,    3},   /* slot 15 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 16 == nothing */
+		{64+ 0, 64+0, 64+1, 64+2, 64+3},   /* slot 17= device 4 */
+		{48+ 0, 48+0, 48+1, 48+2, 48+3},   /* slot 18= device 3 */
+		{32+ 0, 32+0, 32+1, 32+2, 32+3},   /* slot 19= device 2 */
+		{16+ 0, 16+0, 16+1, 16+2, 16+3},   /* slot 20= device 1 */
+	};
+	const long min_idsel = 6, max_idsel = 20, irqs_per_slot = 5;
+        int irq = COMMON_TABLE_LOOKUP;
+	if (irq >= 0 && irq < 16) {
+		/* Guess that we are behind a bridge.  */
+		unsigned int busslot = PCI_SLOT(dev->bus->self->devfn);
+		irq += irq_tab[busslot-min_idsel][0];
+	}
+	return irq;
+}
+
+static int __init
+takara_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[15][5] __initdata = {
+		{ 16+3, 16+3, 16+3, 16+3, 16+3},   /* slot  6 == device 3 */
+		{ 16+2, 16+2, 16+2, 16+2, 16+2},   /* slot  7 == device 2 */
+		{ 16+1, 16+1, 16+1, 16+1, 16+1},   /* slot  8 == device 1 */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot  9 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 10 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 11 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 12 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 13 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 14 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 15 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 16 == nothing */
+		{   -1,   -1,   -1,   -1,   -1},   /* slot 17 == nothing */
+		{ 16+3, 16+3, 16+3, 16+3, 16+3},   /* slot 18 == device 3 */
+		{ 16+2, 16+2, 16+2, 16+2, 16+2},   /* slot 19 == device 2 */
+		{ 16+1, 16+1, 16+1, 16+1, 16+1},   /* slot 20 == device 1 */
+	};
+	const long min_idsel = 6, max_idsel = 20, irqs_per_slot = 5;
+	return COMMON_TABLE_LOOKUP;
+}
+
+static u8
+takara_swizzle(struct pci_dev *dev, u8 *pinp)
+{
+	int slot = PCI_SLOT(dev->devfn);
+	int pin = *pinp;
+	unsigned int ctlreg = inl(0x500);
+	unsigned int busslot;
+
+	if (!dev->bus->self)
+		return slot;
+
+	busslot = PCI_SLOT(dev->bus->self->devfn);
+	/* Check for built-in bridges.  */
+	if (dev->bus->number != 0
+	    && busslot > 16
+	    && ((1<<(36-busslot)) & ctlreg)) {
+		if (pin == 1)
+			pin += (20 - busslot);
+		else {
+			printk(KERN_WARNING "takara_swizzle: can only "
+			       "handle cards with INTA IRQ pin.\n");
+		}
+	} else {
+		/* Must be a card-based bridge.  */
+		printk(KERN_WARNING "takara_swizzle: cannot handle "
+		       "card-bridge behind builtin bridge yet.\n");
+	}
+
+	*pinp = pin;
+	return slot;
+}
+
+static void __init
+takara_init_pci(void)
+{
+	if (alpha_using_srm)
+		alpha_mv.pci_map_irq = takara_map_irq_srm;
+
+	cia_init_pci();
+
+	if (pc873xx_probe() == -1) {
+		printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+	} else {
+		printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+			pc873xx_get_model(), pc873xx_get_base());
+		pc873xx_enable_ide();
+	}
+}
+
+
+/*
+ * The System Vector
+ */
+
+struct alpha_machine_vector takara_mv __initmv = {
+	.vector_name		= "Takara",
+	DO_EV5_MMU,
+	DO_DEFAULT_RTC,
+	DO_CIA_IO,
+	.machine_check		= cia_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= CIA_DEFAULT_MEM_BASE,
+
+	.nr_irqs		= 128,
+	.device_interrupt	= takara_device_interrupt,
+
+	.init_arch		= cia_init_arch,
+	.init_irq		= takara_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= takara_init_pci,
+	.kill_arch		= cia_kill_arch,
+	.pci_map_irq		= takara_map_irq,
+	.pci_swizzle		= takara_swizzle,
+};
+ALIAS_MV(takara)
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
new file mode 100644
index 000000000..b1f3b4fcf
--- /dev/null
+++ b/arch/alpha/kernel/sys_titan.c
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/sys_titan.c
+ *
+ *	Copyright (C) 1995 David A Rusling
+ *	Copyright (C) 1996, 1999 Jay A Estabrook
+ *	Copyright (C) 1998, 1999 Richard Henderson
+ *      Copyright (C) 1999, 2000 Jeff Wiedemeier
+ *
+ * Code supporting TITAN systems (EV6+TITAN), currently:
+ *      Privateer
+ *	Falcon
+ *	Granite
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_titan.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+#include "err_impl.h"
+
+
+/*
+ * Titan generic
+ */
+
+/*
+ * Titan supports up to 4 CPUs
+ */
+static unsigned long titan_cpu_irq_affinity[4] = { ~0UL, ~0UL, ~0UL, ~0UL };
+
+/*
+ * Mask is set (1) if enabled
+ */
+static unsigned long titan_cached_irq_mask;
+
+/*
+ * Need SMP-safe access to interrupt CSRs
+ */
+DEFINE_SPINLOCK(titan_irq_lock);
+
+static void
+titan_update_irq_hw(unsigned long mask)
+{
+	register titan_cchip *cchip = TITAN_cchip;
+	unsigned long isa_enable = 1UL << 55;
+	register int bcpu = boot_cpuid;
+
+#ifdef CONFIG_SMP
+	cpumask_t cpm;
+	volatile unsigned long *dim0, *dim1, *dim2, *dim3;
+	unsigned long mask0, mask1, mask2, mask3, dummy;
+
+	cpumask_copy(&cpm, cpu_present_mask);
+	mask &= ~isa_enable;
+	mask0 = mask & titan_cpu_irq_affinity[0];
+	mask1 = mask & titan_cpu_irq_affinity[1];
+	mask2 = mask & titan_cpu_irq_affinity[2];
+	mask3 = mask & titan_cpu_irq_affinity[3];
+
+	if (bcpu == 0) mask0 |= isa_enable;
+	else if (bcpu == 1) mask1 |= isa_enable;
+	else if (bcpu == 2) mask2 |= isa_enable;
+	else mask3 |= isa_enable;
+
+	dim0 = &cchip->dim0.csr;
+	dim1 = &cchip->dim1.csr;
+	dim2 = &cchip->dim2.csr;
+	dim3 = &cchip->dim3.csr;
+	if (!cpumask_test_cpu(0, &cpm)) dim0 = &dummy;
+	if (!cpumask_test_cpu(1, &cpm)) dim1 = &dummy;
+	if (!cpumask_test_cpu(2, &cpm)) dim2 = &dummy;
+	if (!cpumask_test_cpu(3, &cpm)) dim3 = &dummy;
+
+	*dim0 = mask0;
+	*dim1 = mask1;
+	*dim2 = mask2;
+	*dim3 = mask3;
+	mb();
+	*dim0;
+	*dim1;
+	*dim2;
+	*dim3;
+#else
+	volatile unsigned long *dimB;
+	dimB = &cchip->dim0.csr;
+	if (bcpu == 1) dimB = &cchip->dim1.csr;
+	else if (bcpu == 2) dimB = &cchip->dim2.csr;
+	else if (bcpu == 3) dimB = &cchip->dim3.csr;
+
+	*dimB = mask | isa_enable;
+	mb();
+	*dimB;
+#endif
+}
+
+static inline void
+titan_enable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	spin_lock(&titan_irq_lock);
+	titan_cached_irq_mask |= 1UL << (irq - 16);
+	titan_update_irq_hw(titan_cached_irq_mask);
+	spin_unlock(&titan_irq_lock);
+}
+
+static inline void
+titan_disable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	spin_lock(&titan_irq_lock);
+	titan_cached_irq_mask &= ~(1UL << (irq - 16));
+	titan_update_irq_hw(titan_cached_irq_mask);
+	spin_unlock(&titan_irq_lock);
+}
+
+static void
+titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
+{
+	int cpu;
+
+	for (cpu = 0; cpu < 4; cpu++) {
+		if (cpumask_test_cpu(cpu, &affinity))
+			titan_cpu_irq_affinity[cpu] |= 1UL << irq;
+		else
+			titan_cpu_irq_affinity[cpu] &= ~(1UL << irq);
+	}
+
+}
+
+static int
+titan_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity,
+		       bool force)
+{ 
+	unsigned int irq = d->irq;
+	spin_lock(&titan_irq_lock);
+	titan_cpu_set_irq_affinity(irq - 16, *affinity);
+	titan_update_irq_hw(titan_cached_irq_mask);
+	spin_unlock(&titan_irq_lock);
+
+	return 0;
+}
+
+static void
+titan_device_interrupt(unsigned long vector)
+{
+	printk("titan_device_interrupt: NOT IMPLEMENTED YET!!\n");
+}
+
+static void 
+titan_srm_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+	handle_irq(irq);
+}
+
+
+static void __init
+init_titan_irqs(struct irq_chip * ops, int imin, int imax)
+{
+	long i;
+	for (i = imin; i <= imax; ++i) {
+		irq_set_chip_and_handler(i, ops, handle_level_irq);
+		irq_set_status_flags(i, IRQ_LEVEL);
+	}
+}
+
+static struct irq_chip titan_irq_type = {
+       .name			= "TITAN",
+       .irq_unmask		= titan_enable_irq,
+       .irq_mask		= titan_disable_irq,
+       .irq_mask_ack		= titan_disable_irq,
+       .irq_set_affinity	= titan_set_irq_affinity,
+};
+
+static irqreturn_t
+titan_intr_nop(int irq, void *dev_id)
+{
+      /*
+       * This is a NOP interrupt handler for the purposes of
+       * event counting -- just return.
+       */                                                                     
+       return IRQ_HANDLED;
+}
+
+static void __init
+titan_init_irq(void)
+{
+	if (alpha_using_srm && !alpha_mv.device_interrupt)
+		alpha_mv.device_interrupt = titan_srm_device_interrupt;
+	if (!alpha_mv.device_interrupt)
+		alpha_mv.device_interrupt = titan_device_interrupt;
+
+	titan_update_irq_hw(0);
+
+	init_titan_irqs(&titan_irq_type, 16, 63 + 16);
+}
+  
+static void __init
+titan_legacy_init_irq(void)
+{
+	/* init the legacy dma controller */
+	outb(0, DMA1_RESET_REG);
+	outb(0, DMA2_RESET_REG);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
+	outb(0, DMA2_MASK_REG);
+
+	/* init the legacy irq controller */
+	init_i8259a_irqs();
+
+	/* init the titan irqs */
+	titan_init_irq();
+}
+
+void
+titan_dispatch_irqs(u64 mask)
+{
+	unsigned long vector;
+
+	/*
+	 * Mask down to those interrupts which are enable on this processor
+	 */
+	mask &= titan_cpu_irq_affinity[smp_processor_id()];
+
+	/*
+	 * Dispatch all requested interrupts 
+	 */
+	while (mask) {
+		/* convert to SRM vector... priority is <63> -> <0> */
+		vector = 63 - __kernel_ctlz(mask);
+		mask &= ~(1UL << vector);	/* clear it out 	 */
+		vector = 0x900 + (vector << 4);	/* convert to SRM vector */
+		
+		/* dispatch it */
+		alpha_mv.device_interrupt(vector);
+	}
+}
+  
+
+/*
+ * Titan Family
+ */
+static void __init
+titan_request_irq(unsigned int irq, irq_handler_t handler,
+		  unsigned long irqflags, const char *devname,
+		  void *dev_id)
+{
+	int err;
+	err = request_irq(irq, handler, irqflags, devname, dev_id);
+	if (err) {
+		printk("titan_request_irq for IRQ %d returned %d; ignoring\n",
+		       irq, err);
+	}
+}
+
+static void __init
+titan_late_init(void)
+{
+	/*
+	 * Enable the system error interrupts. These interrupts are 
+	 * all reported to the kernel as machine checks, so the handler
+	 * is a nop so it can be called to count the individual events.
+	 */
+	titan_request_irq(63+16, titan_intr_nop, 0,
+		    "CChip Error", NULL);
+	titan_request_irq(62+16, titan_intr_nop, 0,
+		    "PChip 0 H_Error", NULL);
+	titan_request_irq(61+16, titan_intr_nop, 0,
+		    "PChip 1 H_Error", NULL);
+	titan_request_irq(60+16, titan_intr_nop, 0,
+		    "PChip 0 C_Error", NULL);
+	titan_request_irq(59+16, titan_intr_nop, 0,
+		    "PChip 1 C_Error", NULL);
+
+	/* 
+	 * Register our error handlers.
+	 */
+	titan_register_error_handlers();
+
+	/*
+	 * Check if the console left us any error logs.
+	 */
+	cdl_check_console_data_log();
+
+}
+
+static int
+titan_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	u8 intline;
+	int irq;
+
+ 	/* Get the current intline.  */
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &intline);
+	irq = intline;
+
+ 	/* Is it explicitly routed through ISA?  */
+ 	if ((irq & 0xF0) == 0xE0)
+ 		return irq;
+ 
+ 	/* Offset by 16 to make room for ISA interrupts 0 - 15.  */
+ 	return irq + 16;
+}
+
+static void __init
+titan_init_pci(void)
+{
+ 	/*
+ 	 * This isn't really the right place, but there's some init
+ 	 * that needs to be done after everything is basically up.
+ 	 */
+ 	titan_late_init();
+ 
+	/* Indicate that we trust the console to configure things properly */
+	pci_set_flags(PCI_PROBE_ONLY);
+	common_init_pci();
+	SMC669_Init(0);
+	locate_and_init_vga(NULL);
+}
+
+
+/*
+ * Privateer
+ */
+static void __init
+privateer_init_pci(void)
+{
+	/*
+	 * Hook a couple of extra err interrupts that the
+	 * common titan code won't.
+	 */
+	titan_request_irq(53+16, titan_intr_nop, 0,
+		    "NMI", NULL);
+	titan_request_irq(50+16, titan_intr_nop, 0,
+		    "Temperature Warning", NULL);
+
+	/*
+	 * Finish with the common version.
+	 */
+	return titan_init_pci();
+}
+
+
+/*
+ * The System Vectors.
+ */
+struct alpha_machine_vector titan_mv __initmv = {
+	.vector_name		= "TITAN",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TITAN_IO,
+	.machine_check		= titan_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TITAN_DAC_OFFSET,
+
+	.nr_irqs		= 80,	/* 64 + 16 */
+	/* device_interrupt will be filled in by titan_init_irq */
+
+	.agp_info		= titan_agp_info,
+
+	.init_arch		= titan_init_arch,
+	.init_irq		= titan_legacy_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= titan_init_pci,
+
+	.kill_arch		= titan_kill_arch,
+	.pci_map_irq		= titan_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(titan)
+
+struct alpha_machine_vector privateer_mv __initmv = {
+	.vector_name		= "PRIVATEER",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_TITAN_IO,
+	.machine_check		= privateer_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+	.pci_dac_offset		= TITAN_DAC_OFFSET,
+
+	.nr_irqs		= 80,	/* 64 + 16 */
+	/* device_interrupt will be filled in by titan_init_irq */
+
+	.agp_info		= titan_agp_info,
+
+	.init_arch		= titan_init_arch,
+	.init_irq		= titan_legacy_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= privateer_init_pci,
+
+	.kill_arch		= titan_kill_arch,
+	.pci_map_irq		= titan_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+/* No alpha_mv alias for privateer since we compile it 
+   in unconditionally with titan; setup_arch knows how to cope. */
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
new file mode 100644
index 000000000..3cee05443
--- /dev/null
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/sys_wildfire.c
+ *
+ *  Wildfire support.
+ *
+ *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/ptrace.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/mmu_context.h>
+#include <asm/io.h>
+#include <asm/core_wildfire.h>
+#include <asm/hwrpb.h>
+#include <asm/tlbflush.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+#include "pci_impl.h"
+#include "machvec_impl.h"
+
+static unsigned long cached_irq_mask[WILDFIRE_NR_IRQS/(sizeof(long)*8)];
+
+DEFINE_SPINLOCK(wildfire_irq_lock);
+
+static int doing_init_irq_hw = 0;
+
+static void
+wildfire_update_irq_hw(unsigned int irq)
+{
+	int qbbno = (irq >> 8) & (WILDFIRE_MAX_QBB - 1);
+	int pcano = (irq >> 6) & (WILDFIRE_PCA_PER_QBB - 1);
+	wildfire_pca *pca;
+	volatile unsigned long * enable0;
+
+	if (!WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
+		if (!doing_init_irq_hw) {
+			printk(KERN_ERR "wildfire_update_irq_hw:"
+			       " got irq %d for non-existent PCA %d"
+			       " on QBB %d.\n",
+			       irq, pcano, qbbno);
+		}
+		return;
+	}
+
+	pca = WILDFIRE_pca(qbbno, pcano);
+	enable0 = (unsigned long *) &pca->pca_int[0].enable; /* ??? */
+
+	*enable0 = cached_irq_mask[qbbno * WILDFIRE_PCA_PER_QBB + pcano];
+	mb();
+	*enable0;
+}
+
+static void __init
+wildfire_init_irq_hw(void)
+{
+#if 0
+	register wildfire_pca * pca = WILDFIRE_pca(0, 0);
+	volatile unsigned long * enable0, * enable1, * enable2, *enable3;
+	volatile unsigned long * target0, * target1, * target2, *target3;
+
+	enable0 = (unsigned long *) &pca->pca_int[0].enable;
+	enable1 = (unsigned long *) &pca->pca_int[1].enable;
+	enable2 = (unsigned long *) &pca->pca_int[2].enable;
+	enable3 = (unsigned long *) &pca->pca_int[3].enable;
+
+	target0 = (unsigned long *) &pca->pca_int[0].target;
+	target1 = (unsigned long *) &pca->pca_int[1].target;
+	target2 = (unsigned long *) &pca->pca_int[2].target;
+	target3 = (unsigned long *) &pca->pca_int[3].target;
+
+	*enable0 = *enable1 = *enable2 = *enable3 = 0;
+
+	*target0 = (1UL<<8) | WILDFIRE_QBB(0);
+	*target1 = *target2 = *target3 = 0;
+
+	mb();
+
+	*enable0; *enable1; *enable2; *enable3;
+	*target0; *target1; *target2; *target3;
+
+#else
+	int i;
+
+	doing_init_irq_hw = 1;
+
+	/* Need to update only once for every possible PCA. */
+	for (i = 0; i < WILDFIRE_NR_IRQS; i+=WILDFIRE_IRQ_PER_PCA)
+		wildfire_update_irq_hw(i);
+
+	doing_init_irq_hw = 0;
+#endif
+}
+
+static void
+wildfire_enable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_enable_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	set_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static void
+wildfire_disable_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_disable_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	clear_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static void
+wildfire_mask_and_ack_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+
+	if (irq < 16)
+		i8259a_mask_and_ack_irq(d);
+
+	spin_lock(&wildfire_irq_lock);
+	clear_bit(irq, &cached_irq_mask);
+	wildfire_update_irq_hw(irq);
+	spin_unlock(&wildfire_irq_lock);
+}
+
+static struct irq_chip wildfire_irq_type = {
+	.name		= "WILDFIRE",
+	.irq_unmask	= wildfire_enable_irq,
+	.irq_mask	= wildfire_disable_irq,
+	.irq_mask_ack	= wildfire_mask_and_ack_irq,
+};
+
+static void __init
+wildfire_init_irq_per_pca(int qbbno, int pcano)
+{
+	int i, irq_bias;
+
+	irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+		 + pcano * WILDFIRE_IRQ_PER_PCA;
+
+#if 0
+	unsigned long io_bias;
+
+	/* Only need the following for first PCI bus per PCA. */
+	io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;
+
+	outb(0, DMA1_RESET_REG + io_bias);
+	outb(0, DMA2_RESET_REG + io_bias);
+	outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
+	outb(0, DMA2_MASK_REG + io_bias);
+#endif
+
+#if 0
+	/* ??? Not sure how to do this, yet... */
+	init_i8259a_irqs(); /* ??? */
+#endif
+
+	for (i = 0; i < 16; ++i) {
+		if (i == 2)
+			continue;
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
+	}
+
+	irq_set_chip_and_handler(36 + irq_bias, &wildfire_irq_type,
+				 handle_level_irq);
+	irq_set_status_flags(36 + irq_bias, IRQ_LEVEL);
+	for (i = 40; i < 64; ++i) {
+		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
+					 handle_level_irq);
+		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
+	}
+
+	if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL))
+		pr_err("Failed to register isa_enable interrupt\n");
+}
+
+static void __init
+wildfire_init_irq(void)
+{
+	int qbbno, pcano;
+
+#if 1
+	wildfire_init_irq_hw();
+	init_i8259a_irqs();
+#endif
+
+	for (qbbno = 0; qbbno < WILDFIRE_MAX_QBB; qbbno++) {
+	  if (WILDFIRE_QBB_EXISTS(qbbno)) {
+	    for (pcano = 0; pcano < WILDFIRE_PCA_PER_QBB; pcano++) {
+	      if (WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
+		wildfire_init_irq_per_pca(qbbno, pcano);
+	      }
+	    }
+	  }
+	}
+}
+
+static void 
+wildfire_device_interrupt(unsigned long vector)
+{
+	int irq;
+
+	irq = (vector - 0x800) >> 4;
+
+	/*
+	 * bits 10-8:	source QBB ID
+	 * bits 7-6:	PCA
+	 * bits 5-0:	irq in PCA
+	 */
+
+	handle_irq(irq);
+	return;
+}
+
+/*
+ * PCI Fixup configuration.
+ *
+ * Summary per PCA (2 PCI or HIPPI buses):
+ *
+ * Bit      Meaning
+ * 0-15     ISA
+ *
+ *32        ISA summary
+ *33        SMI
+ *34        NMI
+ *36        builtin QLogic SCSI (or slot 0 if no IO module)
+ *40        Interrupt Line A from slot 2 PCI0
+ *41        Interrupt Line B from slot 2 PCI0
+ *42        Interrupt Line C from slot 2 PCI0
+ *43        Interrupt Line D from slot 2 PCI0
+ *44        Interrupt Line A from slot 3 PCI0
+ *45        Interrupt Line B from slot 3 PCI0
+ *46        Interrupt Line C from slot 3 PCI0
+ *47        Interrupt Line D from slot 3 PCI0
+ *
+ *48        Interrupt Line A from slot 4 PCI1
+ *49        Interrupt Line B from slot 4 PCI1
+ *50        Interrupt Line C from slot 4 PCI1
+ *51        Interrupt Line D from slot 4 PCI1
+ *52        Interrupt Line A from slot 5 PCI1
+ *53        Interrupt Line B from slot 5 PCI1
+ *54        Interrupt Line C from slot 5 PCI1
+ *55        Interrupt Line D from slot 5 PCI1
+ *56        Interrupt Line A from slot 6 PCI1
+ *57        Interrupt Line B from slot 6 PCI1
+ *58        Interrupt Line C from slot 6 PCI1
+ *50        Interrupt Line D from slot 6 PCI1
+ *60        Interrupt Line A from slot 7 PCI1
+ *61        Interrupt Line B from slot 7 PCI1
+ *62        Interrupt Line C from slot 7 PCI1
+ *63        Interrupt Line D from slot 7 PCI1
+ * 
+ *
+ * IdSel	
+ *   0	 Cypress Bridge I/O (ISA summary interrupt)
+ *   1	 64 bit PCI 0 option slot 1 (SCSI QLogic builtin)
+ *   2	 64 bit PCI 0 option slot 2
+ *   3	 64 bit PCI 0 option slot 3
+ *   4	 64 bit PCI 1 option slot 4
+ *   5	 64 bit PCI 1 option slot 5
+ *   6	 64 bit PCI 1 option slot 6
+ *   7	 64 bit PCI 1 option slot 7
+ */
+
+static int
+wildfire_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static char irq_tab[8][5] = {
+		/*INT    INTA   INTB   INTC   INTD */
+		{ -1,    -1,    -1,    -1,    -1}, /* IdSel 0 ISA Bridge */
+		{ 36,    36,    36+1, 36+2, 36+3}, /* IdSel 1 SCSI builtin */
+		{ 40,    40,    40+1, 40+2, 40+3}, /* IdSel 2 PCI 0 slot 2 */
+		{ 44,    44,    44+1, 44+2, 44+3}, /* IdSel 3 PCI 0 slot 3 */
+		{ 48,    48,    48+1, 48+2, 48+3}, /* IdSel 4 PCI 1 slot 4 */
+		{ 52,    52,    52+1, 52+2, 52+3}, /* IdSel 5 PCI 1 slot 5 */
+		{ 56,    56,    56+1, 56+2, 56+3}, /* IdSel 6 PCI 1 slot 6 */
+		{ 60,    60,    60+1, 60+2, 60+3}, /* IdSel 7 PCI 1 slot 7 */
+	};
+	long min_idsel = 0, max_idsel = 7, irqs_per_slot = 5;
+
+	struct pci_controller *hose = dev->sysdata;
+	int irq = COMMON_TABLE_LOOKUP;
+
+	if (irq > 0) {
+		int qbbno = hose->index >> 3;
+		int pcano = (hose->index >> 1) & 3;
+		irq += (qbbno << 8) + (pcano << 6);
+	}
+	return irq;
+}
+
+
+/*
+ * The System Vectors
+ */
+
+struct alpha_machine_vector wildfire_mv __initmv = {
+	.vector_name		= "WILDFIRE",
+	DO_EV6_MMU,
+	DO_DEFAULT_RTC,
+	DO_WILDFIRE_IO,
+	.machine_check		= wildfire_machine_check,
+	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
+	.min_io_address		= DEFAULT_IO_BASE,
+	.min_mem_address	= DEFAULT_MEM_BASE,
+
+	.nr_irqs		= WILDFIRE_NR_IRQS,
+	.device_interrupt	= wildfire_device_interrupt,
+
+	.init_arch		= wildfire_init_arch,
+	.init_irq		= wildfire_init_irq,
+	.init_rtc		= common_init_rtc,
+	.init_pci		= common_init_pci,
+	.kill_arch		= wildfire_kill_arch,
+	.pci_map_irq		= wildfire_map_irq,
+	.pci_swizzle		= common_swizzle,
+};
+ALIAS_MV(wildfire)
diff --git a/arch/alpha/kernel/syscalls/Makefile b/arch/alpha/kernel/syscalls/Makefile
new file mode 100644
index 000000000..b265e4bc1
--- /dev/null
+++ b/arch/alpha/kernel/syscalls/Makefile
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+$(shell mkdir -p $(uapi) $(kapi))
+
+syscall := $(src)/syscall.tbl
+syshdr := $(srctree)/scripts/syscallhdr.sh
+systbl := $(srctree)/scripts/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr $< $@
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@
+
+$(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
+	$(call if_changed,syshdr)
+
+$(kapi)/syscall_table.h: $(syscall) $(systbl) FORCE
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_32.h
+kapisyshdr-y		+= syscall_table.h
+
+uapisyshdr-y	:= $(addprefix $(uapi)/, $(uapisyshdr-y))
+kapisyshdr-y	:= $(addprefix $(kapi)/, $(kapisyshdr-y))
+targets		+= $(addprefix ../../../../, $(uapisyshdr-y) $(kapisyshdr-y))
+
+PHONY += all
+all: $(uapisyshdr-y) $(kapisyshdr-y)
+	@:
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
new file mode 100644
index 000000000..8ebacf37a
--- /dev/null
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -0,0 +1,492 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for alpha
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The <abi> is always "common" for this file
+#
+0	common	osf_syscall			alpha_syscall_zero
+1	common	exit				sys_exit
+2	common	fork				alpha_fork
+3	common	read				sys_read
+4	common	write				sys_write
+5	common	osf_old_open			sys_ni_syscall
+6	common	close				sys_close
+7	common	osf_wait4			sys_osf_wait4
+8	common	osf_old_creat			sys_ni_syscall
+9	common	link				sys_link
+10	common	unlink				sys_unlink
+11	common	osf_execve			sys_ni_syscall
+12	common	chdir				sys_chdir
+13	common	fchdir				sys_fchdir
+14	common	mknod				sys_mknod
+15	common	chmod				sys_chmod
+16	common	chown				sys_chown
+17	common	brk				sys_osf_brk
+18	common	osf_getfsstat			sys_ni_syscall
+19	common	lseek				sys_lseek
+20	common	getxpid				sys_getxpid
+21	common	osf_mount			sys_osf_mount
+22	common	umount2				sys_umount
+23	common	setuid				sys_setuid
+24	common	getxuid				sys_getxuid
+25	common	exec_with_loader		sys_ni_syscall
+26	common	ptrace				sys_ptrace
+27	common	osf_nrecvmsg			sys_ni_syscall
+28	common	osf_nsendmsg			sys_ni_syscall
+29	common	osf_nrecvfrom			sys_ni_syscall
+30	common	osf_naccept			sys_ni_syscall
+31	common	osf_ngetpeername		sys_ni_syscall
+32	common	osf_ngetsockname		sys_ni_syscall
+33	common	access				sys_access
+34	common	osf_chflags			sys_ni_syscall
+35	common	osf_fchflags			sys_ni_syscall
+36	common	sync				sys_sync
+37	common	kill				sys_kill
+38	common	osf_old_stat			sys_ni_syscall
+39	common	setpgid				sys_setpgid
+40	common	osf_old_lstat			sys_ni_syscall
+41	common	dup				sys_dup
+42	common	pipe				sys_alpha_pipe
+43	common	osf_set_program_attributes	sys_osf_set_program_attributes
+44	common	osf_profil			sys_ni_syscall
+45	common	open				sys_open
+46	common	osf_old_sigaction		sys_ni_syscall
+47	common	getxgid				sys_getxgid
+48	common	osf_sigprocmask			sys_osf_sigprocmask
+49	common	osf_getlogin			sys_ni_syscall
+50	common	osf_setlogin			sys_ni_syscall
+51	common	acct				sys_acct
+52	common	sigpending			sys_sigpending
+54	common	ioctl				sys_ioctl
+55	common	osf_reboot			sys_ni_syscall
+56	common	osf_revoke			sys_ni_syscall
+57	common	symlink				sys_symlink
+58	common	readlink			sys_readlink
+59	common	execve				sys_execve
+60	common	umask				sys_umask
+61	common	chroot				sys_chroot
+62	common	osf_old_fstat			sys_ni_syscall
+63	common	getpgrp				sys_getpgrp
+64	common	getpagesize			sys_getpagesize
+65	common	osf_mremap			sys_ni_syscall
+66	common	vfork				alpha_vfork
+67	common	stat				sys_newstat
+68	common	lstat				sys_newlstat
+69	common	osf_sbrk			sys_ni_syscall
+70	common	osf_sstk			sys_ni_syscall
+71	common	mmap				sys_osf_mmap
+72	common	osf_old_vadvise			sys_ni_syscall
+73	common	munmap				sys_munmap
+74	common	mprotect			sys_mprotect
+75	common	madvise				sys_madvise
+76	common	vhangup				sys_vhangup
+77	common	osf_kmodcall			sys_ni_syscall
+78	common	osf_mincore			sys_ni_syscall
+79	common	getgroups			sys_getgroups
+80	common	setgroups			sys_setgroups
+81	common	osf_old_getpgrp			sys_ni_syscall
+82	common	setpgrp				sys_setpgid
+83	common	osf_setitimer			compat_sys_setitimer
+84	common	osf_old_wait			sys_ni_syscall
+85	common	osf_table			sys_ni_syscall
+86	common	osf_getitimer			compat_sys_getitimer
+87	common	gethostname			sys_gethostname
+88	common	sethostname			sys_sethostname
+89	common	getdtablesize			sys_getdtablesize
+90	common	dup2				sys_dup2
+91	common	fstat				sys_newfstat
+92	common	fcntl				sys_fcntl
+93	common	osf_select			sys_osf_select
+94	common	poll				sys_poll
+95	common	fsync				sys_fsync
+96	common	setpriority			sys_setpriority
+97	common	socket				sys_socket
+98	common	connect				sys_connect
+99	common	accept				sys_accept
+100	common	getpriority			sys_osf_getpriority
+101	common	send				sys_send
+102	common	recv				sys_recv
+103	common	sigreturn			sys_sigreturn
+104	common	bind				sys_bind
+105	common	setsockopt			sys_setsockopt
+106	common	listen				sys_listen
+107	common	osf_plock			sys_ni_syscall
+108	common	osf_old_sigvec			sys_ni_syscall
+109	common	osf_old_sigblock		sys_ni_syscall
+110	common	osf_old_sigsetmask		sys_ni_syscall
+111	common	sigsuspend			sys_sigsuspend
+112	common	osf_sigstack			sys_osf_sigstack
+113	common	recvmsg				sys_recvmsg
+114	common	sendmsg				sys_sendmsg
+115	common	osf_old_vtrace			sys_ni_syscall
+116	common	osf_gettimeofday		sys_osf_gettimeofday
+117	common	osf_getrusage			sys_osf_getrusage
+118	common	getsockopt			sys_getsockopt
+120	common	readv				sys_readv
+121	common	writev				sys_writev
+122	common	osf_settimeofday		sys_osf_settimeofday
+123	common	fchown				sys_fchown
+124	common	fchmod				sys_fchmod
+125	common	recvfrom			sys_recvfrom
+126	common	setreuid			sys_setreuid
+127	common	setregid			sys_setregid
+128	common	rename				sys_rename
+129	common	truncate			sys_truncate
+130	common	ftruncate			sys_ftruncate
+131	common	flock				sys_flock
+132	common	setgid				sys_setgid
+133	common	sendto				sys_sendto
+134	common	shutdown			sys_shutdown
+135	common	socketpair			sys_socketpair
+136	common	mkdir				sys_mkdir
+137	common	rmdir				sys_rmdir
+138	common	osf_utimes			sys_osf_utimes
+139	common	osf_old_sigreturn		sys_ni_syscall
+140	common	osf_adjtime			sys_ni_syscall
+141	common	getpeername			sys_getpeername
+142	common	osf_gethostid			sys_ni_syscall
+143	common	osf_sethostid			sys_ni_syscall
+144	common	getrlimit			sys_getrlimit
+145	common	setrlimit			sys_setrlimit
+146	common	osf_old_killpg			sys_ni_syscall
+147	common	setsid				sys_setsid
+148	common	quotactl			sys_quotactl
+149	common	osf_oldquota			sys_ni_syscall
+150	common	getsockname			sys_getsockname
+153	common	osf_pid_block			sys_ni_syscall
+154	common	osf_pid_unblock			sys_ni_syscall
+156	common	sigaction			sys_osf_sigaction
+157	common	osf_sigwaitprim			sys_ni_syscall
+158	common	osf_nfssvc			sys_ni_syscall
+159	common	osf_getdirentries		sys_osf_getdirentries
+160	common	osf_statfs			sys_osf_statfs
+161	common	osf_fstatfs			sys_osf_fstatfs
+163	common	osf_asynch_daemon		sys_ni_syscall
+164	common	osf_getfh			sys_ni_syscall
+165	common	osf_getdomainname		sys_osf_getdomainname
+166	common	setdomainname			sys_setdomainname
+169	common	osf_exportfs			sys_ni_syscall
+181	common	osf_alt_plock			sys_ni_syscall
+184	common	osf_getmnt			sys_ni_syscall
+187	common	osf_alt_sigpending		sys_ni_syscall
+188	common	osf_alt_setsid			sys_ni_syscall
+199	common	osf_swapon			sys_swapon
+200	common	msgctl				sys_old_msgctl
+201	common	msgget				sys_msgget
+202	common	msgrcv				sys_msgrcv
+203	common	msgsnd				sys_msgsnd
+204	common	semctl				sys_old_semctl
+205	common	semget				sys_semget
+206	common	semop				sys_semop
+207	common	osf_utsname			sys_osf_utsname
+208	common	lchown				sys_lchown
+209	common	shmat				sys_shmat
+210	common	shmctl				sys_old_shmctl
+211	common	shmdt				sys_shmdt
+212	common	shmget				sys_shmget
+213	common	osf_mvalid			sys_ni_syscall
+214	common	osf_getaddressconf		sys_ni_syscall
+215	common	osf_msleep			sys_ni_syscall
+216	common	osf_mwakeup			sys_ni_syscall
+217	common	msync				sys_msync
+218	common	osf_signal			sys_ni_syscall
+219	common	osf_utc_gettime			sys_ni_syscall
+220	common	osf_utc_adjtime			sys_ni_syscall
+222	common	osf_security			sys_ni_syscall
+223	common	osf_kloadcall			sys_ni_syscall
+224	common	osf_stat			sys_osf_stat
+225	common	osf_lstat			sys_osf_lstat
+226	common	osf_fstat			sys_osf_fstat
+227	common	osf_statfs64			sys_osf_statfs64
+228	common	osf_fstatfs64			sys_osf_fstatfs64
+233	common	getpgid				sys_getpgid
+234	common	getsid				sys_getsid
+235	common	sigaltstack			sys_sigaltstack
+236	common	osf_waitid			sys_ni_syscall
+237	common	osf_priocntlset			sys_ni_syscall
+238	common	osf_sigsendset			sys_ni_syscall
+239	common	osf_set_speculative		sys_ni_syscall
+240	common	osf_msfs_syscall		sys_ni_syscall
+241	common	osf_sysinfo			sys_osf_sysinfo
+242	common	osf_uadmin			sys_ni_syscall
+243	common	osf_fuser			sys_ni_syscall
+244	common	osf_proplist_syscall		sys_osf_proplist_syscall
+245	common	osf_ntp_adjtime			sys_ni_syscall
+246	common	osf_ntp_gettime			sys_ni_syscall
+247	common	osf_pathconf			sys_ni_syscall
+248	common	osf_fpathconf			sys_ni_syscall
+250	common	osf_uswitch			sys_ni_syscall
+251	common	osf_usleep_thread		sys_osf_usleep_thread
+252	common	osf_audcntl			sys_ni_syscall
+253	common	osf_audgen			sys_ni_syscall
+254	common	sysfs				sys_sysfs
+255	common	osf_subsys_info			sys_ni_syscall
+256	common	osf_getsysinfo			sys_osf_getsysinfo
+257	common	osf_setsysinfo			sys_osf_setsysinfo
+258	common	osf_afs_syscall			sys_ni_syscall
+259	common	osf_swapctl			sys_ni_syscall
+260	common	osf_memcntl			sys_ni_syscall
+261	common	osf_fdatasync			sys_ni_syscall
+300	common	bdflush				sys_ni_syscall
+301	common	sethae				sys_sethae
+302	common	mount				sys_mount
+303	common	old_adjtimex			sys_old_adjtimex
+304	common	swapoff				sys_swapoff
+305	common	getdents			sys_getdents
+306	common	create_module			sys_ni_syscall
+307	common	init_module			sys_init_module
+308	common	delete_module			sys_delete_module
+309	common	get_kernel_syms			sys_ni_syscall
+310	common	syslog				sys_syslog
+311	common	reboot				sys_reboot
+312	common	clone				alpha_clone
+313	common	uselib				sys_uselib
+314	common	mlock				sys_mlock
+315	common	munlock				sys_munlock
+316	common	mlockall			sys_mlockall
+317	common	munlockall			sys_munlockall
+318	common	sysinfo				sys_sysinfo
+319	common	_sysctl				sys_ni_syscall
+# 320 was sys_idle
+321	common	oldumount			sys_oldumount
+322	common	swapon				sys_swapon
+323	common	times				sys_times
+324	common	personality			sys_personality
+325	common	setfsuid			sys_setfsuid
+326	common	setfsgid			sys_setfsgid
+327	common	ustat				sys_ustat
+328	common	statfs				sys_statfs
+329	common	fstatfs				sys_fstatfs
+330	common	sched_setparam			sys_sched_setparam
+331	common	sched_getparam			sys_sched_getparam
+332	common	sched_setscheduler		sys_sched_setscheduler
+333	common	sched_getscheduler		sys_sched_getscheduler
+334	common	sched_yield			sys_sched_yield
+335	common	sched_get_priority_max		sys_sched_get_priority_max
+336	common	sched_get_priority_min		sys_sched_get_priority_min
+337	common	sched_rr_get_interval		sys_sched_rr_get_interval
+338	common	afs_syscall			sys_ni_syscall
+339	common	uname				sys_newuname
+340	common	nanosleep			sys_nanosleep
+341	common	mremap				sys_mremap
+342	common	nfsservctl			sys_ni_syscall
+343	common	setresuid			sys_setresuid
+344	common	getresuid			sys_getresuid
+345	common	pciconfig_read			sys_pciconfig_read
+346	common	pciconfig_write			sys_pciconfig_write
+347	common	query_module			sys_ni_syscall
+348	common	prctl				sys_prctl
+349	common	pread64				sys_pread64
+350	common	pwrite64			sys_pwrite64
+351	common	rt_sigreturn			sys_rt_sigreturn
+352	common	rt_sigaction			sys_rt_sigaction
+353	common	rt_sigprocmask			sys_rt_sigprocmask
+354	common	rt_sigpending			sys_rt_sigpending
+355	common	rt_sigtimedwait			sys_rt_sigtimedwait
+356	common	rt_sigqueueinfo			sys_rt_sigqueueinfo
+357	common	rt_sigsuspend			sys_rt_sigsuspend
+358	common	select				sys_select
+359	common	gettimeofday			sys_gettimeofday
+360	common	settimeofday			sys_settimeofday
+361	common	getitimer			sys_getitimer
+362	common	setitimer			sys_setitimer
+363	common	utimes				sys_utimes
+364	common	getrusage			sys_getrusage
+365	common	wait4				sys_wait4
+366	common	adjtimex			sys_adjtimex
+367	common	getcwd				sys_getcwd
+368	common	capget				sys_capget
+369	common	capset				sys_capset
+370	common	sendfile			sys_sendfile64
+371	common	setresgid			sys_setresgid
+372	common	getresgid			sys_getresgid
+373	common	dipc				sys_ni_syscall
+374	common	pivot_root			sys_pivot_root
+375	common	mincore				sys_mincore
+376	common	pciconfig_iobase		sys_pciconfig_iobase
+377	common	getdents64			sys_getdents64
+378	common	gettid				sys_gettid
+379	common	readahead			sys_readahead
+# 380 is unused
+381	common	tkill				sys_tkill
+382	common	setxattr			sys_setxattr
+383	common	lsetxattr			sys_lsetxattr
+384	common	fsetxattr			sys_fsetxattr
+385	common	getxattr			sys_getxattr
+386	common	lgetxattr			sys_lgetxattr
+387	common	fgetxattr			sys_fgetxattr
+388	common	listxattr			sys_listxattr
+389	common	llistxattr			sys_llistxattr
+390	common	flistxattr			sys_flistxattr
+391	common	removexattr			sys_removexattr
+392	common	lremovexattr			sys_lremovexattr
+393	common	fremovexattr			sys_fremovexattr
+394	common	futex				sys_futex
+395	common	sched_setaffinity		sys_sched_setaffinity
+396	common	sched_getaffinity		sys_sched_getaffinity
+397	common	tuxcall				sys_ni_syscall
+398	common	io_setup			sys_io_setup
+399	common	io_destroy			sys_io_destroy
+400	common	io_getevents			sys_io_getevents
+401	common	io_submit			sys_io_submit
+402	common	io_cancel			sys_io_cancel
+405	common	exit_group			sys_exit_group
+406	common	lookup_dcookie			sys_lookup_dcookie
+407	common	epoll_create			sys_epoll_create
+408	common	epoll_ctl			sys_epoll_ctl
+409	common	epoll_wait			sys_epoll_wait
+410	common	remap_file_pages		sys_remap_file_pages
+411	common	set_tid_address			sys_set_tid_address
+412	common	restart_syscall			sys_restart_syscall
+413	common	fadvise64			sys_fadvise64
+414	common	timer_create			sys_timer_create
+415	common	timer_settime			sys_timer_settime
+416	common	timer_gettime			sys_timer_gettime
+417	common	timer_getoverrun		sys_timer_getoverrun
+418	common	timer_delete			sys_timer_delete
+419	common	clock_settime			sys_clock_settime
+420	common	clock_gettime			sys_clock_gettime
+421	common	clock_getres			sys_clock_getres
+422	common	clock_nanosleep			sys_clock_nanosleep
+423	common	semtimedop			sys_semtimedop
+424	common	tgkill				sys_tgkill
+425	common	stat64				sys_stat64
+426	common	lstat64				sys_lstat64
+427	common	fstat64				sys_fstat64
+428	common	vserver				sys_ni_syscall
+429	common	mbind				sys_ni_syscall
+430	common	get_mempolicy			sys_ni_syscall
+431	common	set_mempolicy			sys_ni_syscall
+432	common	mq_open				sys_mq_open
+433	common	mq_unlink			sys_mq_unlink
+434	common	mq_timedsend			sys_mq_timedsend
+435	common	mq_timedreceive			sys_mq_timedreceive
+436	common	mq_notify			sys_mq_notify
+437	common	mq_getsetattr			sys_mq_getsetattr
+438	common	waitid				sys_waitid
+439	common	add_key				sys_add_key
+440	common	request_key			sys_request_key
+441	common	keyctl				sys_keyctl
+442	common	ioprio_set			sys_ioprio_set
+443	common	ioprio_get			sys_ioprio_get
+444	common	inotify_init			sys_inotify_init
+445	common	inotify_add_watch		sys_inotify_add_watch
+446	common	inotify_rm_watch		sys_inotify_rm_watch
+447	common	fdatasync			sys_fdatasync
+448	common	kexec_load			sys_kexec_load
+449	common	migrate_pages			sys_migrate_pages
+450	common	openat				sys_openat
+451	common	mkdirat				sys_mkdirat
+452	common	mknodat				sys_mknodat
+453	common	fchownat			sys_fchownat
+454	common	futimesat			sys_futimesat
+455	common	fstatat64			sys_fstatat64
+456	common	unlinkat			sys_unlinkat
+457	common	renameat			sys_renameat
+458	common	linkat				sys_linkat
+459	common	symlinkat			sys_symlinkat
+460	common	readlinkat			sys_readlinkat
+461	common	fchmodat			sys_fchmodat
+462	common	faccessat			sys_faccessat
+463	common	pselect6			sys_pselect6
+464	common	ppoll				sys_ppoll
+465	common	unshare				sys_unshare
+466	common	set_robust_list			sys_set_robust_list
+467	common	get_robust_list			sys_get_robust_list
+468	common	splice				sys_splice
+469	common	sync_file_range			sys_sync_file_range
+470	common	tee				sys_tee
+471	common	vmsplice			sys_vmsplice
+472	common	move_pages			sys_move_pages
+473	common	getcpu				sys_getcpu
+474	common	epoll_pwait			sys_epoll_pwait
+475	common	utimensat			sys_utimensat
+476	common	signalfd			sys_signalfd
+477	common	timerfd				sys_ni_syscall
+478	common	eventfd				sys_eventfd
+479	common	recvmmsg			sys_recvmmsg
+480	common	fallocate			sys_fallocate
+481	common	timerfd_create			sys_timerfd_create
+482	common	timerfd_settime			sys_timerfd_settime
+483	common	timerfd_gettime			sys_timerfd_gettime
+484	common	signalfd4			sys_signalfd4
+485	common	eventfd2			sys_eventfd2
+486	common	epoll_create1			sys_epoll_create1
+487	common	dup3				sys_dup3
+488	common	pipe2				sys_pipe2
+489	common	inotify_init1			sys_inotify_init1
+490	common	preadv				sys_preadv
+491	common	pwritev				sys_pwritev
+492	common	rt_tgsigqueueinfo		sys_rt_tgsigqueueinfo
+493	common	perf_event_open			sys_perf_event_open
+494	common	fanotify_init			sys_fanotify_init
+495	common	fanotify_mark			sys_fanotify_mark
+496	common	prlimit64			sys_prlimit64
+497	common	name_to_handle_at		sys_name_to_handle_at
+498	common	open_by_handle_at		sys_open_by_handle_at
+499	common	clock_adjtime			sys_clock_adjtime
+500	common	syncfs				sys_syncfs
+501	common	setns				sys_setns
+502	common	accept4				sys_accept4
+503	common	sendmmsg			sys_sendmmsg
+504	common	process_vm_readv		sys_process_vm_readv
+505	common	process_vm_writev		sys_process_vm_writev
+506	common	kcmp				sys_kcmp
+507	common	finit_module			sys_finit_module
+508	common	sched_setattr			sys_sched_setattr
+509	common	sched_getattr			sys_sched_getattr
+510	common	renameat2			sys_renameat2
+511	common	getrandom			sys_getrandom
+512	common	memfd_create			sys_memfd_create
+513	common	execveat			sys_execveat
+514	common	seccomp				sys_seccomp
+515	common	bpf				sys_bpf
+516	common	userfaultfd			sys_userfaultfd
+517	common	membarrier			sys_membarrier
+518	common	mlock2				sys_mlock2
+519	common	copy_file_range			sys_copy_file_range
+520	common	preadv2				sys_preadv2
+521	common	pwritev2			sys_pwritev2
+522	common	statx				sys_statx
+523	common	io_pgetevents			sys_io_pgetevents
+524	common	pkey_mprotect			sys_pkey_mprotect
+525	common	pkey_alloc			sys_pkey_alloc
+526	common	pkey_free			sys_pkey_free
+527	common	rseq				sys_rseq
+528	common	statfs64			sys_statfs64
+529	common	fstatfs64			sys_fstatfs64
+530	common	getegid				sys_getegid
+531	common	geteuid				sys_geteuid
+532	common	getppid				sys_getppid
+# all other architectures have common numbers for new syscall, alpha
+# is the exception.
+534	common	pidfd_send_signal		sys_pidfd_send_signal
+535	common	io_uring_setup			sys_io_uring_setup
+536	common	io_uring_enter			sys_io_uring_enter
+537	common	io_uring_register		sys_io_uring_register
+538	common	open_tree			sys_open_tree
+539	common	move_mount			sys_move_mount
+540	common	fsopen				sys_fsopen
+541	common	fsconfig			sys_fsconfig
+542	common	fsmount				sys_fsmount
+543	common	fspick				sys_fspick
+544	common	pidfd_open			sys_pidfd_open
+# 545 reserved for clone3
+546	common	close_range			sys_close_range
+547	common	openat2				sys_openat2
+548	common	pidfd_getfd			sys_pidfd_getfd
+549	common	faccessat2			sys_faccessat2
+550	common	process_madvise			sys_process_madvise
+551	common	epoll_pwait2			sys_epoll_pwait2
+552	common	mount_setattr			sys_mount_setattr
+553	common	quotactl_fd			sys_quotactl_fd
+554	common	landlock_create_ruleset		sys_landlock_create_ruleset
+555	common	landlock_add_rule		sys_landlock_add_rule
+556	common	landlock_restrict_self		sys_landlock_restrict_self
+# 557 reserved for memfd_secret
+558	common	process_mrelease		sys_process_mrelease
+559	common  futex_waitv                     sys_futex_waitv
+560	common	set_mempolicy_home_node		sys_ni_syscall
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
new file mode 100644
index 000000000..68f3e4f32
--- /dev/null
+++ b/arch/alpha/kernel/systbls.S
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/kernel/systbls.S
+ *
+ * The system call table. 
+ */
+
+#include <asm/unistd.h>
+
+#define __SYSCALL(nr, entry) .quad entry
+	.data
+	.align 3
+	.globl sys_call_table
+sys_call_table:
+#include <asm/syscall_table.h>
diff --git a/arch/alpha/kernel/termios.c b/arch/alpha/kernel/termios.c
new file mode 100644
index 000000000..a4c29a22e
--- /dev/null
+++ b/arch/alpha/kernel/termios.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/termios_internal.h>
+
+int user_termio_to_kernel_termios(struct ktermios *termios,
+						struct termio __user *termio)
+{
+	struct termio v;
+	bool canon;
+
+	if (copy_from_user(&v, termio, sizeof(struct termio)))
+		return -EFAULT;
+
+	termios->c_iflag = (0xffff0000 & termios->c_iflag) | v.c_iflag;
+	termios->c_oflag = (0xffff0000 & termios->c_oflag) | v.c_oflag;
+	termios->c_cflag = (0xffff0000 & termios->c_cflag) | v.c_cflag;
+	termios->c_lflag = (0xffff0000 & termios->c_lflag) | v.c_lflag;
+	termios->c_line = (0xffff0000 & termios->c_lflag) | v.c_line;
+
+	canon = v.c_lflag & ICANON;
+	termios->c_cc[VINTR]  = v.c_cc[_VINTR];
+	termios->c_cc[VQUIT]  = v.c_cc[_VQUIT];
+	termios->c_cc[VERASE] = v.c_cc[_VERASE];
+	termios->c_cc[VKILL]  = v.c_cc[_VKILL];
+	termios->c_cc[VEOL2]  = v.c_cc[_VEOL2];
+	termios->c_cc[VSWTC]  = v.c_cc[_VSWTC];
+	termios->c_cc[canon ? VEOF : VMIN]  = v.c_cc[_VEOF];
+	termios->c_cc[canon ? VEOL : VTIME] = v.c_cc[_VEOL];
+
+	return 0;
+}
+
+int kernel_termios_to_user_termio(struct termio __user *termio,
+						struct ktermios *termios)
+{
+	struct termio v;
+	bool canon;
+
+	memset(&v, 0, sizeof(struct termio));
+	v.c_iflag = termios->c_iflag;
+	v.c_oflag = termios->c_oflag;
+	v.c_cflag = termios->c_cflag;
+	v.c_lflag = termios->c_lflag;
+	v.c_line = termios->c_line;
+
+	canon = v.c_lflag & ICANON;
+	v.c_cc[_VINTR]  = termios->c_cc[VINTR];
+	v.c_cc[_VQUIT]  = termios->c_cc[VQUIT];
+	v.c_cc[_VERASE] = termios->c_cc[VERASE];
+	v.c_cc[_VKILL]  = termios->c_cc[VKILL];
+	v.c_cc[_VEOF]   = termios->c_cc[canon ? VEOF : VMIN];
+	v.c_cc[_VEOL]   = termios->c_cc[canon ? VEOL : VTIME];
+	v.c_cc[_VEOL2]  = termios->c_cc[VEOL2];
+	v.c_cc[_VSWTC]  = termios->c_cc[VSWTC];
+
+	return copy_to_user(termio, &v, sizeof(struct termio));
+}
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
new file mode 100644
index 000000000..4d01c392a
--- /dev/null
+++ b/arch/alpha/kernel/time.c
@@ -0,0 +1,458 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/kernel/time.c
+ *
+ *  Copyright (C) 1991, 1992, 1995, 1999, 2000  Linus Torvalds
+ *
+ * This file contains the clocksource time handling.
+ * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
+ *		"A Kernel Model for Precision Timekeeping" by Dave Mills
+ * 1997-01-09    Adrian Sun
+ *      use interval timer if CONFIG_RTC=y
+ * 1997-10-29    John Bowman (bowman@math.ualberta.ca)
+ *      fixed tick loss calculation in timer_interrupt
+ *      (round system clock to nearest tick instead of truncating)
+ *      fixed algorithm in time_init for getting time from CMOS clock
+ * 1999-04-16	Thorsten Kranzkowski (dl8bcu@gmx.net)
+ *	fixed algorithm in do_gettimeofday() for calculating the precise time
+ *	from processor cycle counter (now taking lost_ticks into account)
+ * 2003-06-03	R. Scott Bailey <scott.bailey@eds.com>
+ *	Tighten sanity in time_init from 1% (10,000 PPM) to 250 PPM
+ */
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/bcd.h>
+#include <linux/profile.h>
+#include <linux/irq_work.h>
+
+#include <linux/uaccess.h>
+#include <asm/io.h>
+#include <asm/hwrpb.h>
+
+#include <linux/mc146818rtc.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+
+#include "proto.h"
+#include "irq_impl.h"
+
+DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
+
+unsigned long est_cycle_freq;
+
+#ifdef CONFIG_IRQ_WORK
+
+DEFINE_PER_CPU(u8, irq_work_pending);
+
+#define set_irq_work_pending_flag()  __this_cpu_write(irq_work_pending, 1)
+#define test_irq_work_pending()      __this_cpu_read(irq_work_pending)
+#define clear_irq_work_pending()     __this_cpu_write(irq_work_pending, 0)
+
+void arch_irq_work_raise(void)
+{
+	set_irq_work_pending_flag();
+}
+
+#else  /* CONFIG_IRQ_WORK */
+
+#define test_irq_work_pending()      0
+#define clear_irq_work_pending()
+
+#endif /* CONFIG_IRQ_WORK */
+
+
+static inline __u32 rpcc(void)
+{
+	return __builtin_alpha_rpcc();
+}
+
+
+
+/*
+ * The RTC as a clock_event_device primitive.
+ */
+
+static DEFINE_PER_CPU(struct clock_event_device, cpu_ce);
+
+irqreturn_t
+rtc_timer_interrupt(int irq, void *dev)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	/* Don't run the hook for UNUSED or SHUTDOWN.  */
+	if (likely(clockevent_state_periodic(ce)))
+		ce->event_handler(ce);
+
+	if (test_irq_work_pending()) {
+		clear_irq_work_pending();
+		irq_work_run();
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int
+rtc_ce_set_next_event(unsigned long evt, struct clock_event_device *ce)
+{
+	/* This hook is for oneshot mode, which we don't support.  */
+	return -EINVAL;
+}
+
+static void __init
+init_rtc_clockevent(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	*ce = (struct clock_event_device){
+		.name = "rtc",
+		.features = CLOCK_EVT_FEAT_PERIODIC,
+		.rating = 100,
+		.cpumask = cpumask_of(cpu),
+		.set_next_event = rtc_ce_set_next_event,
+	};
+
+	clockevents_config_and_register(ce, CONFIG_HZ, 0, 0);
+}
+
+
+/*
+ * The QEMU clock as a clocksource primitive.
+ */
+
+static u64
+qemu_cs_read(struct clocksource *cs)
+{
+	return qemu_get_vmtime();
+}
+
+static struct clocksource qemu_cs = {
+	.name                   = "qemu",
+	.rating                 = 400,
+	.read                   = qemu_cs_read,
+	.mask                   = CLOCKSOURCE_MASK(64),
+	.flags                  = CLOCK_SOURCE_IS_CONTINUOUS,
+	.max_idle_ns		= LONG_MAX
+};
+
+
+/*
+ * The QEMU alarm as a clock_event_device primitive.
+ */
+
+static int qemu_ce_shutdown(struct clock_event_device *ce)
+{
+	/* The mode member of CE is updated for us in generic code.
+	   Just make sure that the event is disabled.  */
+	qemu_set_alarm_abs(0);
+	return 0;
+}
+
+static int
+qemu_ce_set_next_event(unsigned long evt, struct clock_event_device *ce)
+{
+	qemu_set_alarm_rel(evt);
+	return 0;
+}
+
+static irqreturn_t
+qemu_timer_interrupt(int irq, void *dev)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	ce->event_handler(ce);
+	return IRQ_HANDLED;
+}
+
+static void __init
+init_qemu_clockevent(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	*ce = (struct clock_event_device){
+		.name = "qemu",
+		.features = CLOCK_EVT_FEAT_ONESHOT,
+		.rating = 400,
+		.cpumask = cpumask_of(cpu),
+		.set_state_shutdown = qemu_ce_shutdown,
+		.set_state_oneshot = qemu_ce_shutdown,
+		.tick_resume = qemu_ce_shutdown,
+		.set_next_event = qemu_ce_set_next_event,
+	};
+
+	clockevents_config_and_register(ce, NSEC_PER_SEC, 1000, LONG_MAX);
+}
+
+
+void __init
+common_init_rtc(void)
+{
+	unsigned char x, sel = 0;
+
+	/* Reset periodic interrupt frequency.  */
+#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200
+ 	x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f;
+	/* Test includes known working values on various platforms
+	   where 0x26 is wrong; we refuse to change those. */
+ 	if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) {
+		sel = RTC_REF_CLCK_32KHZ + 6;
+	}
+#elif CONFIG_HZ == 256 || CONFIG_HZ == 128 || CONFIG_HZ == 64 || CONFIG_HZ == 32
+	sel = RTC_REF_CLCK_32KHZ + __builtin_ffs(32768 / CONFIG_HZ);
+#else
+# error "Unknown HZ from arch/alpha/Kconfig"
+#endif
+	if (sel) {
+		printk(KERN_INFO "Setting RTC_FREQ to %d Hz (%x)\n",
+		       CONFIG_HZ, sel);
+		CMOS_WRITE(sel, RTC_FREQ_SELECT);
+ 	}
+
+	/* Turn on periodic interrupts.  */
+	x = CMOS_READ(RTC_CONTROL);
+	if (!(x & RTC_PIE)) {
+		printk("Turning on RTC interrupts.\n");
+		x |= RTC_PIE;
+		x &= ~(RTC_AIE | RTC_UIE);
+		CMOS_WRITE(x, RTC_CONTROL);
+	}
+	(void) CMOS_READ(RTC_INTR_FLAGS);
+
+	outb(0x36, 0x43);	/* pit counter 0: system timer */
+	outb(0x00, 0x40);
+	outb(0x00, 0x40);
+
+	outb(0xb6, 0x43);	/* pit counter 2: speaker */
+	outb(0x31, 0x42);
+	outb(0x13, 0x42);
+
+	init_rtc_irq(NULL);
+}
+
+
+#ifndef CONFIG_ALPHA_WTINT
+/*
+ * The RPCC as a clocksource primitive.
+ *
+ * While we have free-running timecounters running on all CPUs, and we make
+ * a half-hearted attempt in init_rtc_rpcc_info to sync the timecounter
+ * with the wall clock, that initialization isn't kept up-to-date across
+ * different time counters in SMP mode.  Therefore we can only use this
+ * method when there's only one CPU enabled.
+ *
+ * When using the WTINT PALcall, the RPCC may shift to a lower frequency,
+ * or stop altogether, while waiting for the interrupt.  Therefore we cannot
+ * use this method when WTINT is in use.
+ */
+
+static u64 read_rpcc(struct clocksource *cs)
+{
+	return rpcc();
+}
+
+static struct clocksource clocksource_rpcc = {
+	.name                   = "rpcc",
+	.rating                 = 300,
+	.read                   = read_rpcc,
+	.mask                   = CLOCKSOURCE_MASK(32),
+	.flags                  = CLOCK_SOURCE_IS_CONTINUOUS
+};
+#endif /* ALPHA_WTINT */
+
+
+/* Validate a computed cycle counter result against the known bounds for
+   the given processor core.  There's too much brokenness in the way of
+   timing hardware for any one method to work everywhere.  :-(
+
+   Return 0 if the result cannot be trusted, otherwise return the argument.  */
+
+static unsigned long __init
+validate_cc_value(unsigned long cc)
+{
+	static struct bounds {
+		unsigned int min, max;
+	} cpu_hz[] __initdata = {
+		[EV3_CPU]    = {   50000000,  200000000 },	/* guess */
+		[EV4_CPU]    = {  100000000,  300000000 },
+		[LCA4_CPU]   = {  100000000,  300000000 },	/* guess */
+		[EV45_CPU]   = {  200000000,  300000000 },
+		[EV5_CPU]    = {  250000000,  433000000 },
+		[EV56_CPU]   = {  333000000,  667000000 },
+		[PCA56_CPU]  = {  400000000,  600000000 },	/* guess */
+		[PCA57_CPU]  = {  500000000,  600000000 },	/* guess */
+		[EV6_CPU]    = {  466000000,  600000000 },
+		[EV67_CPU]   = {  600000000,  750000000 },
+		[EV68AL_CPU] = {  750000000,  940000000 },
+		[EV68CB_CPU] = { 1000000000, 1333333333 },
+		/* None of the following are shipping as of 2001-11-01.  */
+		[EV68CX_CPU] = { 1000000000, 1700000000 },	/* guess */
+		[EV69_CPU]   = { 1000000000, 1700000000 },	/* guess */
+		[EV7_CPU]    = {  800000000, 1400000000 },	/* guess */
+		[EV79_CPU]   = { 1000000000, 2000000000 },	/* guess */
+	};
+
+	/* Allow for some drift in the crystal.  10MHz is more than enough.  */
+	const unsigned int deviation = 10000000;
+
+	struct percpu_struct *cpu;
+	unsigned int index;
+
+	cpu = (struct percpu_struct *)((char*)hwrpb + hwrpb->processor_offset);
+	index = cpu->type & 0xffffffff;
+
+	/* If index out of bounds, no way to validate.  */
+	if (index >= ARRAY_SIZE(cpu_hz))
+		return cc;
+
+	/* If index contains no data, no way to validate.  */
+	if (cpu_hz[index].max == 0)
+		return cc;
+
+	if (cc < cpu_hz[index].min - deviation
+	    || cc > cpu_hz[index].max + deviation)
+		return 0;
+
+	return cc;
+}
+
+
+/*
+ * Calibrate CPU clock using legacy 8254 timer/counter. Stolen from
+ * arch/i386/time.c.
+ */
+
+#define CALIBRATE_LATCH	0xffff
+#define TIMEOUT_COUNT	0x100000
+
+static unsigned long __init
+calibrate_cc_with_pit(void)
+{
+	int cc, count = 0;
+
+	/* Set the Gate high, disable speaker */
+	outb((inb(0x61) & ~0x02) | 0x01, 0x61);
+
+	/*
+	 * Now let's take care of CTC channel 2
+	 *
+	 * Set the Gate high, program CTC channel 2 for mode 0,
+	 * (interrupt on terminal count mode), binary count,
+	 * load 5 * LATCH count, (LSB and MSB) to begin countdown.
+	 */
+	outb(0xb0, 0x43);		/* binary, mode 0, LSB/MSB, Ch 2 */
+	outb(CALIBRATE_LATCH & 0xff, 0x42);	/* LSB of count */
+	outb(CALIBRATE_LATCH >> 8, 0x42);	/* MSB of count */
+
+	cc = rpcc();
+	do {
+		count++;
+	} while ((inb(0x61) & 0x20) == 0 && count < TIMEOUT_COUNT);
+	cc = rpcc() - cc;
+
+	/* Error: ECTCNEVERSET or ECPUTOOFAST.  */
+	if (count <= 1 || count == TIMEOUT_COUNT)
+		return 0;
+
+	return ((long)cc * PIT_TICK_RATE) / (CALIBRATE_LATCH + 1);
+}
+
+/* The Linux interpretation of the CMOS clock register contents:
+   When the Update-In-Progress (UIP) flag goes from 1 to 0, the
+   RTC registers show the second which has precisely just started.
+   Let's hope other operating systems interpret the RTC the same way.  */
+
+static unsigned long __init
+rpcc_after_update_in_progress(void)
+{
+	do { } while (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP));
+	do { } while (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
+
+	return rpcc();
+}
+
+void __init
+time_init(void)
+{
+	unsigned int cc1, cc2;
+	unsigned long cycle_freq, tolerance;
+	long diff;
+
+	if (alpha_using_qemu) {
+		clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
+		init_qemu_clockevent();
+		init_rtc_irq(qemu_timer_interrupt);
+		return;
+	}
+
+	/* Calibrate CPU clock -- attempt #1.  */
+	if (!est_cycle_freq)
+		est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());
+
+	cc1 = rpcc();
+
+	/* Calibrate CPU clock -- attempt #2.  */
+	if (!est_cycle_freq) {
+		cc1 = rpcc_after_update_in_progress();
+		cc2 = rpcc_after_update_in_progress();
+		est_cycle_freq = validate_cc_value(cc2 - cc1);
+		cc1 = cc2;
+	}
+
+	cycle_freq = hwrpb->cycle_freq;
+	if (est_cycle_freq) {
+		/* If the given value is within 250 PPM of what we calculated,
+		   accept it.  Otherwise, use what we found.  */
+		tolerance = cycle_freq / 4000;
+		diff = cycle_freq - est_cycle_freq;
+		if (diff < 0)
+			diff = -diff;
+		if ((unsigned long)diff > tolerance) {
+			cycle_freq = est_cycle_freq;
+			printk("HWRPB cycle frequency bogus.  "
+			       "Estimated %lu Hz\n", cycle_freq);
+		} else {
+			est_cycle_freq = 0;
+		}
+	} else if (! validate_cc_value (cycle_freq)) {
+		printk("HWRPB cycle frequency bogus, "
+		       "and unable to estimate a proper value!\n");
+	}
+
+	/* See above for restrictions on using clocksource_rpcc.  */
+#ifndef CONFIG_ALPHA_WTINT
+	if (hwrpb->nr_processors == 1)
+		clocksource_register_hz(&clocksource_rpcc, cycle_freq);
+#endif
+
+	/* Startup the timer source. */
+	alpha_mv.init_rtc();
+	init_rtc_clockevent();
+}
+
+/* Initialize the clock_event_device for secondary cpus.  */
+#ifdef CONFIG_SMP
+void __init
+init_clockevent(void)
+{
+	if (alpha_using_qemu)
+		init_qemu_clockevent();
+	else
+		init_rtc_clockevent();
+}
+#endif
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
new file mode 100644
index 000000000..d9a67b370
--- /dev/null
+++ b/arch/alpha/kernel/traps.c
@@ -0,0 +1,992 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/kernel/traps.c
+ *
+ * (C) Copyright 1994 Linus Torvalds
+ */
+
+/*
+ * This file initializes the trap entry points
+ */
+
+#include <linux/jiffies.h>
+#include <linux/mm.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
+#include <linux/tty.h>
+#include <linux/delay.h>
+#include <linux/extable.h>
+#include <linux/kallsyms.h>
+#include <linux/ratelimit.h>
+
+#include <asm/gentrap.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/sysinfo.h>
+#include <asm/hwrpb.h>
+#include <asm/mmu_context.h>
+#include <asm/special_insns.h>
+
+#include "proto.h"
+
+/* Work-around for some SRMs which mishandle opDEC faults.  */
+
+static int opDEC_fix;
+
+static void
+opDEC_check(void)
+{
+	__asm__ __volatile__ (
+	/* Load the address of... */
+	"	br	$16, 1f\n"
+	/* A stub instruction fault handler.  Just add 4 to the
+	   pc and continue.  */
+	"	ldq	$16, 8($sp)\n"
+	"	addq	$16, 4, $16\n"
+	"	stq	$16, 8($sp)\n"
+	"	call_pal %[rti]\n"
+	/* Install the instruction fault handler.  */
+	"1:	lda	$17, 3\n"
+	"	call_pal %[wrent]\n"
+	/* With that in place, the fault from the round-to-minf fp
+	   insn will arrive either at the "lda 4" insn (bad) or one
+	   past that (good).  This places the correct fixup in %0.  */
+	"	lda %[fix], 0\n"
+	"	cvttq/svm $f31,$f31\n"
+	"	lda %[fix], 4"
+	: [fix] "=r" (opDEC_fix)
+	: [rti] "n" (PAL_rti), [wrent] "n" (PAL_wrent)
+	: "$0", "$1", "$16", "$17", "$22", "$23", "$24", "$25");
+
+	if (opDEC_fix)
+		printk("opDEC fixup enabled.\n");
+}
+
+void
+dik_show_regs(struct pt_regs *regs, unsigned long *r9_15)
+{
+	printk("pc = [<%016lx>]  ra = [<%016lx>]  ps = %04lx    %s\n",
+	       regs->pc, regs->r26, regs->ps, print_tainted());
+	printk("pc is at %pSR\n", (void *)regs->pc);
+	printk("ra is at %pSR\n", (void *)regs->r26);
+	printk("v0 = %016lx  t0 = %016lx  t1 = %016lx\n",
+	       regs->r0, regs->r1, regs->r2);
+	printk("t2 = %016lx  t3 = %016lx  t4 = %016lx\n",
+ 	       regs->r3, regs->r4, regs->r5);
+	printk("t5 = %016lx  t6 = %016lx  t7 = %016lx\n",
+	       regs->r6, regs->r7, regs->r8);
+
+	if (r9_15) {
+		printk("s0 = %016lx  s1 = %016lx  s2 = %016lx\n",
+		       r9_15[9], r9_15[10], r9_15[11]);
+		printk("s3 = %016lx  s4 = %016lx  s5 = %016lx\n",
+		       r9_15[12], r9_15[13], r9_15[14]);
+		printk("s6 = %016lx\n", r9_15[15]);
+	}
+
+	printk("a0 = %016lx  a1 = %016lx  a2 = %016lx\n",
+	       regs->r16, regs->r17, regs->r18);
+	printk("a3 = %016lx  a4 = %016lx  a5 = %016lx\n",
+ 	       regs->r19, regs->r20, regs->r21);
+ 	printk("t8 = %016lx  t9 = %016lx  t10= %016lx\n",
+	       regs->r22, regs->r23, regs->r24);
+	printk("t11= %016lx  pv = %016lx  at = %016lx\n",
+	       regs->r25, regs->r27, regs->r28);
+	printk("gp = %016lx  sp = %p\n", regs->gp, regs+1);
+#if 0
+__halt();
+#endif
+}
+
+#if 0
+static char * ireg_name[] = {"v0", "t0", "t1", "t2", "t3", "t4", "t5", "t6",
+			   "t7", "s0", "s1", "s2", "s3", "s4", "s5", "s6",
+			   "a0", "a1", "a2", "a3", "a4", "a5", "t8", "t9",
+			   "t10", "t11", "ra", "pv", "at", "gp", "sp", "zero"};
+#endif
+
+static void
+dik_show_code(unsigned int *pc)
+{
+	long i;
+
+	printk("Code:");
+	for (i = -6; i < 2; i++) {
+		unsigned int insn;
+		if (__get_user(insn, (unsigned int __user *)pc + i))
+			break;
+		printk("%c%08x%c", i ? ' ' : '<', insn, i ? ' ' : '>');
+	}
+	printk("\n");
+}
+
+static void
+dik_show_trace(unsigned long *sp, const char *loglvl)
+{
+	long i = 0;
+	printk("%sTrace:\n", loglvl);
+	while (0x1ff8 & (unsigned long) sp) {
+		extern char _stext[], _etext[];
+		unsigned long tmp = *sp;
+		sp++;
+		if (!is_kernel_text(tmp))
+			continue;
+		printk("%s[<%lx>] %pSR\n", loglvl, tmp, (void *)tmp);
+		if (i > 40) {
+			printk("%s ...", loglvl);
+			break;
+		}
+	}
+	printk("%s\n", loglvl);
+}
+
+static int kstack_depth_to_print = 24;
+
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
+{
+	unsigned long *stack;
+	int i;
+
+	/*
+	 * debugging aid: "show_stack(NULL, NULL, KERN_EMERG);" prints the
+	 * back trace for this cpu.
+	 */
+	if(sp==NULL)
+		sp=(unsigned long*)&sp;
+
+	stack = sp;
+	for(i=0; i < kstack_depth_to_print; i++) {
+		if (((long) stack & (THREAD_SIZE-1)) == 0)
+			break;
+		if ((i % 4) == 0) {
+			if (i)
+				pr_cont("\n");
+			printk("%s       ", loglvl);
+		} else {
+			pr_cont(" ");
+		}
+		pr_cont("%016lx", *stack++);
+	}
+	pr_cont("\n");
+	dik_show_trace(sp, loglvl);
+}
+
+void
+die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
+{
+	if (regs->ps & 8)
+		return;
+#ifdef CONFIG_SMP
+	printk("CPU %d ", hard_smp_processor_id());
+#endif
+	printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);
+	dik_show_regs(regs, r9_15);
+	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
+	dik_show_trace((unsigned long *)(regs+1), KERN_DEFAULT);
+	dik_show_code((unsigned int *)regs->pc);
+
+	if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) {
+		printk("die_if_kernel recursion detected.\n");
+		local_irq_enable();
+		while (1);
+	}
+	make_task_dead(SIGSEGV);
+}
+
+#ifndef CONFIG_MATHEMU
+static long dummy_emul(void) { return 0; }
+long (*alpha_fp_emul_imprecise)(struct pt_regs *regs, unsigned long writemask)
+  = (void *)dummy_emul;
+EXPORT_SYMBOL_GPL(alpha_fp_emul_imprecise);
+long (*alpha_fp_emul) (unsigned long pc)
+  = (void *)dummy_emul;
+EXPORT_SYMBOL_GPL(alpha_fp_emul);
+#else
+long alpha_fp_emul_imprecise(struct pt_regs *regs, unsigned long writemask);
+long alpha_fp_emul (unsigned long pc);
+#endif
+
+asmlinkage void
+do_entArith(unsigned long summary, unsigned long write_mask,
+	    struct pt_regs *regs)
+{
+	long si_code = FPE_FLTINV;
+
+	if (summary & 1) {
+		/* Software-completion summary bit is set, so try to
+		   emulate the instruction.  If the processor supports
+		   precise exceptions, we don't have to search.  */
+		if (!amask(AMASK_PRECISE_TRAP))
+			si_code = alpha_fp_emul(regs->pc - 4);
+		else
+			si_code = alpha_fp_emul_imprecise(regs, write_mask);
+		if (si_code == 0)
+			return;
+	}
+	die_if_kernel("Arithmetic fault", regs, 0, NULL);
+
+	send_sig_fault_trapno(SIGFPE, si_code, (void __user *) regs->pc, 0, current);
+}
+
+asmlinkage void
+do_entIF(unsigned long type, struct pt_regs *regs)
+{
+	int signo, code;
+
+	if (type == 3) { /* FEN fault */
+		/* Irritating users can call PAL_clrfen to disable the
+		   FPU for the process.  The kernel will then trap in
+		   do_switch_stack and undo_switch_stack when we try
+		   to save and restore the FP registers.
+
+		   Given that GCC by default generates code that uses the
+		   FP registers, PAL_clrfen is not useful except for DoS
+		   attacks.  So turn the bleeding FPU back on and be done
+		   with it.  */
+		current_thread_info()->pcb.flags |= 1;
+		__reload_thread(&current_thread_info()->pcb);
+		return;
+	}
+	if (!user_mode(regs)) {
+		if (type == 1) {
+			const unsigned int *data
+			  = (const unsigned int *) regs->pc;
+			printk("Kernel bug at %s:%d\n",
+			       (const char *)(data[1] | (long)data[2] << 32), 
+			       data[0]);
+		}
+#ifdef CONFIG_ALPHA_WTINT
+		if (type == 4) {
+			/* If CALL_PAL WTINT is totally unsupported by the
+			   PALcode, e.g. MILO, "emulate" it by overwriting
+			   the insn.  */
+			unsigned int *pinsn
+			  = (unsigned int *) regs->pc - 1;
+			if (*pinsn == PAL_wtint) {
+				*pinsn = 0x47e01400; /* mov 0,$0 */
+				imb();
+				regs->r0 = 0;
+				return;
+			}
+		}
+#endif /* ALPHA_WTINT */
+		die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"),
+			      regs, type, NULL);
+	}
+
+	switch (type) {
+	      case 0: /* breakpoint */
+		if (ptrace_cancel_bpt(current)) {
+			regs->pc -= 4;	/* make pc point to former bpt */
+		}
+
+		send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc,
+			       current);
+		return;
+
+	      case 1: /* bugcheck */
+		send_sig_fault_trapno(SIGTRAP, TRAP_UNK,
+				      (void __user *) regs->pc, 0, current);
+		return;
+		
+	      case 2: /* gentrap */
+		switch ((long) regs->r16) {
+		case GEN_INTOVF:
+			signo = SIGFPE;
+			code = FPE_INTOVF;
+			break;
+		case GEN_INTDIV:
+			signo = SIGFPE;
+			code = FPE_INTDIV;
+			break;
+		case GEN_FLTOVF:
+			signo = SIGFPE;
+			code = FPE_FLTOVF;
+			break;
+		case GEN_FLTDIV:
+			signo = SIGFPE;
+			code = FPE_FLTDIV;
+			break;
+		case GEN_FLTUND:
+			signo = SIGFPE;
+			code = FPE_FLTUND;
+			break;
+		case GEN_FLTINV:
+			signo = SIGFPE;
+			code = FPE_FLTINV;
+			break;
+		case GEN_FLTINE:
+			signo = SIGFPE;
+			code = FPE_FLTRES;
+			break;
+		case GEN_ROPRAND:
+			signo = SIGFPE;
+			code = FPE_FLTUNK;
+			break;
+
+		case GEN_DECOVF:
+		case GEN_DECDIV:
+		case GEN_DECINV:
+		case GEN_ASSERTERR:
+		case GEN_NULPTRERR:
+		case GEN_STKOVF:
+		case GEN_STRLENERR:
+		case GEN_SUBSTRERR:
+		case GEN_RANGERR:
+		case GEN_SUBRNG:
+		case GEN_SUBRNG1:
+		case GEN_SUBRNG2:
+		case GEN_SUBRNG3:
+		case GEN_SUBRNG4:
+		case GEN_SUBRNG5:
+		case GEN_SUBRNG6:
+		case GEN_SUBRNG7:
+		default:
+			signo = SIGTRAP;
+			code = TRAP_UNK;
+			break;
+		}
+
+		send_sig_fault_trapno(signo, code, (void __user *) regs->pc,
+				      regs->r16, current);
+		return;
+
+	      case 4: /* opDEC */
+		if (implver() == IMPLVER_EV4) {
+			long si_code;
+
+			/* The some versions of SRM do not handle
+			   the opDEC properly - they return the PC of the
+			   opDEC fault, not the instruction after as the
+			   Alpha architecture requires.  Here we fix it up.
+			   We do this by intentionally causing an opDEC
+			   fault during the boot sequence and testing if
+			   we get the correct PC.  If not, we set a flag
+			   to correct it every time through.  */
+			regs->pc += opDEC_fix; 
+			
+			/* EV4 does not implement anything except normal
+			   rounding.  Everything else will come here as
+			   an illegal instruction.  Emulate them.  */
+			si_code = alpha_fp_emul(regs->pc - 4);
+			if (si_code == 0)
+				return;
+			if (si_code > 0) {
+				send_sig_fault_trapno(SIGFPE, si_code,
+						      (void __user *) regs->pc,
+						      0, current);
+				return;
+			}
+		}
+		break;
+
+	      case 5: /* illoc */
+	      default: /* unexpected instruction-fault type */
+		      ;
+	}
+
+	send_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, current);
+}
+
+/* There is an ifdef in the PALcode in MILO that enables a 
+   "kernel debugging entry point" as an unprivileged call_pal.
+
+   We don't want to have anything to do with it, but unfortunately
+   several versions of MILO included in distributions have it enabled,
+   and if we don't put something on the entry point we'll oops.  */
+
+asmlinkage void
+do_entDbg(struct pt_regs *regs)
+{
+	die_if_kernel("Instruction fault", regs, 0, NULL);
+
+	force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc);
+}
+
+
+/*
+ * entUna has a different register layout to be reasonably simple. It
+ * needs access to all the integer registers (the kernel doesn't use
+ * fp-regs), and it needs to have them in order for simpler access.
+ *
+ * Due to the non-standard register layout (and because we don't want
+ * to handle floating-point regs), user-mode unaligned accesses are
+ * handled separately by do_entUnaUser below.
+ *
+ * Oh, btw, we don't handle the "gp" register correctly, but if we fault
+ * on a gp-register unaligned load/store, something is _very_ wrong
+ * in the kernel anyway..
+ */
+struct allregs {
+	unsigned long regs[32];
+	unsigned long ps, pc, gp, a0, a1, a2;
+};
+
+struct unaligned_stat {
+	unsigned long count, va, pc;
+} unaligned[2];
+
+
+/* Macro for exception fixup code to access integer registers.  */
+#define una_reg(r)  (_regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)])
+
+
+asmlinkage void
+do_entUna(void * va, unsigned long opcode, unsigned long reg,
+	  struct allregs *regs)
+{
+	long error, tmp1, tmp2, tmp3, tmp4;
+	unsigned long pc = regs->pc - 4;
+	unsigned long *_regs = regs->regs;
+	const struct exception_table_entry *fixup;
+
+	unaligned[0].count++;
+	unaligned[0].va = (unsigned long) va;
+	unaligned[0].pc = pc;
+
+	/* We don't want to use the generic get/put unaligned macros as
+	   we want to trap exceptions.  Only if we actually get an
+	   exception will we decide whether we should have caught it.  */
+
+	switch (opcode) {
+	case 0x0c: /* ldwu */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,1(%3)\n"
+		"	extwl %1,%3,%1\n"
+		"	extwh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto got_exception;
+		una_reg(reg) = tmp1|tmp2;
+		return;
+
+	case 0x28: /* ldl */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,3(%3)\n"
+		"	extll %1,%3,%1\n"
+		"	extlh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto got_exception;
+		una_reg(reg) = (int)(tmp1|tmp2);
+		return;
+
+	case 0x29: /* ldq */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,7(%3)\n"
+		"	extql %1,%3,%1\n"
+		"	extqh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto got_exception;
+		una_reg(reg) = tmp1|tmp2;
+		return;
+
+	/* Note that the store sequences do not indicate that they change
+	   memory because it _should_ be affecting nothing in this context.
+	   (Otherwise we have other, much larger, problems.)  */
+	case 0x0d: /* stw */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,1(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	inswh %6,%5,%4\n"
+		"	inswl %6,%5,%3\n"
+		"	mskwh %2,%5,%2\n"
+		"	mskwl %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,1(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(una_reg(reg)), "0"(0));
+		if (error)
+			goto got_exception;
+		return;
+
+	case 0x2c: /* stl */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,3(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	inslh %6,%5,%4\n"
+		"	insll %6,%5,%3\n"
+		"	msklh %2,%5,%2\n"
+		"	mskll %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,3(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(una_reg(reg)), "0"(0));
+		if (error)
+			goto got_exception;
+		return;
+
+	case 0x2d: /* stq */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,7(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	insqh %6,%5,%4\n"
+		"	insql %6,%5,%3\n"
+		"	mskqh %2,%5,%2\n"
+		"	mskql %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,7(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(una_reg(reg)), "0"(0));
+		if (error)
+			goto got_exception;
+		return;
+	}
+
+	printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
+		pc, va, opcode, reg);
+	make_task_dead(SIGSEGV);
+
+got_exception:
+	/* Ok, we caught the exception, but we don't want it.  Is there
+	   someone to pass it along to?  */
+	if ((fixup = search_exception_tables(pc)) != 0) {
+		unsigned long newpc;
+		newpc = fixup_exception(una_reg, fixup, pc);
+
+		printk("Forwarding unaligned exception at %lx (%lx)\n",
+		       pc, newpc);
+
+		regs->pc = newpc;
+		return;
+	}
+
+	/*
+	 * Yikes!  No one to forward the exception to.
+	 * Since the registers are in a weird format, dump them ourselves.
+ 	 */
+
+	printk("%s(%d): unhandled unaligned exception\n",
+	       current->comm, task_pid_nr(current));
+
+	printk("pc = [<%016lx>]  ra = [<%016lx>]  ps = %04lx\n",
+	       pc, una_reg(26), regs->ps);
+	printk("r0 = %016lx  r1 = %016lx  r2 = %016lx\n",
+	       una_reg(0), una_reg(1), una_reg(2));
+	printk("r3 = %016lx  r4 = %016lx  r5 = %016lx\n",
+ 	       una_reg(3), una_reg(4), una_reg(5));
+	printk("r6 = %016lx  r7 = %016lx  r8 = %016lx\n",
+	       una_reg(6), una_reg(7), una_reg(8));
+	printk("r9 = %016lx  r10= %016lx  r11= %016lx\n",
+	       una_reg(9), una_reg(10), una_reg(11));
+	printk("r12= %016lx  r13= %016lx  r14= %016lx\n",
+	       una_reg(12), una_reg(13), una_reg(14));
+	printk("r15= %016lx\n", una_reg(15));
+	printk("r16= %016lx  r17= %016lx  r18= %016lx\n",
+	       una_reg(16), una_reg(17), una_reg(18));
+	printk("r19= %016lx  r20= %016lx  r21= %016lx\n",
+ 	       una_reg(19), una_reg(20), una_reg(21));
+ 	printk("r22= %016lx  r23= %016lx  r24= %016lx\n",
+	       una_reg(22), una_reg(23), una_reg(24));
+	printk("r25= %016lx  r27= %016lx  r28= %016lx\n",
+	       una_reg(25), una_reg(27), una_reg(28));
+	printk("gp = %016lx  sp = %p\n", regs->gp, regs+1);
+
+	dik_show_code((unsigned int *)pc);
+	dik_show_trace((unsigned long *)(regs+1), KERN_DEFAULT);
+
+	if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) {
+		printk("die_if_kernel recursion detected.\n");
+		local_irq_enable();
+		while (1);
+	}
+	make_task_dead(SIGSEGV);
+}
+
+/*
+ * Convert an s-floating point value in memory format to the
+ * corresponding value in register format.  The exponent
+ * needs to be remapped to preserve non-finite values
+ * (infinities, not-a-numbers, denormals).
+ */
+static inline unsigned long
+s_mem_to_reg (unsigned long s_mem)
+{
+	unsigned long frac    = (s_mem >>  0) & 0x7fffff;
+	unsigned long sign    = (s_mem >> 31) & 0x1;
+	unsigned long exp_msb = (s_mem >> 30) & 0x1;
+	unsigned long exp_low = (s_mem >> 23) & 0x7f;
+	unsigned long exp;
+
+	exp = (exp_msb << 10) | exp_low;	/* common case */
+	if (exp_msb) {
+		if (exp_low == 0x7f) {
+			exp = 0x7ff;
+		}
+	} else {
+		if (exp_low == 0x00) {
+			exp = 0x000;
+		} else {
+			exp |= (0x7 << 7);
+		}
+	}
+	return (sign << 63) | (exp << 52) | (frac << 29);
+}
+
+/*
+ * Convert an s-floating point value in register format to the
+ * corresponding value in memory format.
+ */
+static inline unsigned long
+s_reg_to_mem (unsigned long s_reg)
+{
+	return ((s_reg >> 62) << 30) | ((s_reg << 5) >> 34);
+}
+
+/*
+ * Handle user-level unaligned fault.  Handling user-level unaligned
+ * faults is *extremely* slow and produces nasty messages.  A user
+ * program *should* fix unaligned faults ASAP.
+ *
+ * Notice that we have (almost) the regular kernel stack layout here,
+ * so finding the appropriate registers is a little more difficult
+ * than in the kernel case.
+ *
+ * Finally, we handle regular integer load/stores only.  In
+ * particular, load-linked/store-conditionally and floating point
+ * load/stores are not supported.  The former make no sense with
+ * unaligned faults (they are guaranteed to fail) and I don't think
+ * the latter will occur in any decent program.
+ *
+ * Sigh. We *do* have to handle some FP operations, because GCC will
+ * uses them as temporary storage for integer memory to memory copies.
+ * However, we need to deal with stt/ldt and sts/lds only.
+ */
+
+#define OP_INT_MASK	( 1L << 0x28 | 1L << 0x2c   /* ldl stl */	\
+			| 1L << 0x29 | 1L << 0x2d   /* ldq stq */	\
+			| 1L << 0x0c | 1L << 0x0d   /* ldwu stw */	\
+			| 1L << 0x0a | 1L << 0x0e ) /* ldbu stb */
+
+#define OP_WRITE_MASK	( 1L << 0x26 | 1L << 0x27   /* sts stt */	\
+			| 1L << 0x2c | 1L << 0x2d   /* stl stq */	\
+			| 1L << 0x0d | 1L << 0x0e ) /* stw stb */
+
+#define R(x)	((size_t) &((struct pt_regs *)0)->x)
+
+static int unauser_reg_offsets[32] = {
+	R(r0), R(r1), R(r2), R(r3), R(r4), R(r5), R(r6), R(r7), R(r8),
+	/* r9 ... r15 are stored in front of regs.  */
+	-56, -48, -40, -32, -24, -16, -8,
+	R(r16), R(r17), R(r18),
+	R(r19), R(r20), R(r21), R(r22), R(r23), R(r24), R(r25), R(r26),
+	R(r27), R(r28), R(gp),
+	0, 0
+};
+
+#undef R
+
+asmlinkage void
+do_entUnaUser(void __user * va, unsigned long opcode,
+	      unsigned long reg, struct pt_regs *regs)
+{
+	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
+
+	unsigned long tmp1, tmp2, tmp3, tmp4;
+	unsigned long fake_reg, *reg_addr = &fake_reg;
+	int si_code;
+	long error;
+
+	/* Check the UAC bits to decide what the user wants us to do
+	   with the unaligned access.  */
+
+	if (!(current_thread_info()->status & TS_UAC_NOPRINT)) {
+		if (__ratelimit(&ratelimit)) {
+			printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
+			       current->comm, task_pid_nr(current),
+			       regs->pc - 4, va, opcode, reg);
+		}
+	}
+	if ((current_thread_info()->status & TS_UAC_SIGBUS))
+		goto give_sigbus;
+	/* Not sure why you'd want to use this, but... */
+	if ((current_thread_info()->status & TS_UAC_NOFIX))
+		return;
+
+	/* Don't bother reading ds in the access check since we already
+	   know that this came from the user.  Also rely on the fact that
+	   the page at TASK_SIZE is unmapped and so can't be touched anyway. */
+	if ((unsigned long)va >= TASK_SIZE)
+		goto give_sigsegv;
+
+	++unaligned[1].count;
+	unaligned[1].va = (unsigned long)va;
+	unaligned[1].pc = regs->pc - 4;
+
+	if ((1L << opcode) & OP_INT_MASK) {
+		/* it's an integer load/store */
+		if (reg < 30) {
+			reg_addr = (unsigned long *)
+			  ((char *)regs + unauser_reg_offsets[reg]);
+		} else if (reg == 30) {
+			/* usp in PAL regs */
+			fake_reg = rdusp();
+		} else {
+			/* zero "register" */
+			fake_reg = 0;
+		}
+	}
+
+	/* We don't want to use the generic get/put unaligned macros as
+	   we want to trap exceptions.  Only if we actually get an
+	   exception will we decide whether we should have caught it.  */
+
+	switch (opcode) {
+	case 0x0c: /* ldwu */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,1(%3)\n"
+		"	extwl %1,%3,%1\n"
+		"	extwh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		*reg_addr = tmp1|tmp2;
+		break;
+
+	case 0x22: /* lds */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,3(%3)\n"
+		"	extll %1,%3,%1\n"
+		"	extlh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		alpha_write_fp_reg(reg, s_mem_to_reg((int)(tmp1|tmp2)));
+		return;
+
+	case 0x23: /* ldt */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,7(%3)\n"
+		"	extql %1,%3,%1\n"
+		"	extqh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		alpha_write_fp_reg(reg, tmp1|tmp2);
+		return;
+
+	case 0x28: /* ldl */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,3(%3)\n"
+		"	extll %1,%3,%1\n"
+		"	extlh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		*reg_addr = (int)(tmp1|tmp2);
+		break;
+
+	case 0x29: /* ldq */
+		__asm__ __volatile__(
+		"1:	ldq_u %1,0(%3)\n"
+		"2:	ldq_u %2,7(%3)\n"
+		"	extql %1,%3,%1\n"
+		"	extqh %2,%3,%2\n"
+		"3:\n"
+		EXC(1b,3b,%1,%0)
+		EXC(2b,3b,%2,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
+			: "r"(va), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		*reg_addr = tmp1|tmp2;
+		break;
+
+	/* Note that the store sequences do not indicate that they change
+	   memory because it _should_ be affecting nothing in this context.
+	   (Otherwise we have other, much larger, problems.)  */
+	case 0x0d: /* stw */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,1(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	inswh %6,%5,%4\n"
+		"	inswl %6,%5,%3\n"
+		"	mskwh %2,%5,%2\n"
+		"	mskwl %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,1(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(*reg_addr), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		return;
+
+	case 0x26: /* sts */
+		fake_reg = s_reg_to_mem(alpha_read_fp_reg(reg));
+		fallthrough;
+
+	case 0x2c: /* stl */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,3(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	inslh %6,%5,%4\n"
+		"	insll %6,%5,%3\n"
+		"	msklh %2,%5,%2\n"
+		"	mskll %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,3(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(*reg_addr), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		return;
+
+	case 0x27: /* stt */
+		fake_reg = alpha_read_fp_reg(reg);
+		fallthrough;
+
+	case 0x2d: /* stq */
+		__asm__ __volatile__(
+		"1:	ldq_u %2,7(%5)\n"
+		"2:	ldq_u %1,0(%5)\n"
+		"	insqh %6,%5,%4\n"
+		"	insql %6,%5,%3\n"
+		"	mskqh %2,%5,%2\n"
+		"	mskql %1,%5,%1\n"
+		"	or %2,%4,%2\n"
+		"	or %1,%3,%1\n"
+		"3:	stq_u %2,7(%5)\n"
+		"4:	stq_u %1,0(%5)\n"
+		"5:\n"
+		EXC(1b,5b,%2,%0)
+		EXC(2b,5b,%1,%0)
+		EXC(3b,5b,$31,%0)
+		EXC(4b,5b,$31,%0)
+			: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
+			  "=&r"(tmp3), "=&r"(tmp4)
+			: "r"(va), "r"(*reg_addr), "0"(0));
+		if (error)
+			goto give_sigsegv;
+		return;
+
+	default:
+		/* What instruction were you trying to use, exactly?  */
+		goto give_sigbus;
+	}
+
+	/* Only integer loads should get here; everyone else returns early. */
+	if (reg == 30)
+		wrusp(fake_reg);
+	return;
+
+give_sigsegv:
+	regs->pc -= 4;  /* make pc point to faulting insn */
+
+	/* We need to replicate some of the logic in mm/fault.c,
+	   since we don't have access to the fault code in the
+	   exception handling return path.  */
+	if ((unsigned long)va >= TASK_SIZE)
+		si_code = SEGV_ACCERR;
+	else {
+		struct mm_struct *mm = current->mm;
+		mmap_read_lock(mm);
+		if (find_vma(mm, (unsigned long)va))
+			si_code = SEGV_ACCERR;
+		else
+			si_code = SEGV_MAPERR;
+		mmap_read_unlock(mm);
+	}
+	send_sig_fault(SIGSEGV, si_code, va, current);
+	return;
+
+give_sigbus:
+	regs->pc -= 4;
+	send_sig_fault(SIGBUS, BUS_ADRALN, va, current);
+	return;
+}
+
+void
+trap_init(void)
+{
+	/* Tell PAL-code what global pointer we want in the kernel.  */
+	register unsigned long gptr __asm__("$29");
+	wrkgp(gptr);
+
+	/* Hack for Multia (UDB) and JENSEN: some of their SRMs have
+	   a bug in the handling of the opDEC fault.  Fix it up if so.  */
+	if (implver() == IMPLVER_EV4)
+		opDEC_check();
+
+	wrent(entArith, 1);
+	wrent(entMM, 2);
+	wrent(entIF, 3);
+	wrent(entUna, 4);
+	wrent(entSys, 5);
+	wrent(entDbg, 6);
+}
diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
new file mode 100644
index 000000000..5b78d6407
--- /dev/null
+++ b/arch/alpha/kernel/vmlinux.lds.S
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define EMITS_PT_NOTE
+#define RO_EXCEPTION_TABLE_ALIGN	16
+
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/thread_info.h>
+#include <asm/cache.h>
+#include <asm/page.h>
+#include <asm/setup.h>
+
+OUTPUT_FORMAT("elf64-alpha")
+OUTPUT_ARCH(alpha)
+ENTRY(__start)
+PHDRS { text PT_LOAD; note PT_NOTE; }
+jiffies = jiffies_64;
+SECTIONS
+{
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+	. = 0xfffffc0000310000;
+#else
+	. = 0xfffffc0001010000;
+#endif
+
+	_text = .;	/* Text and read-only data */
+	.text : {
+		HEAD_TEXT
+		TEXT_TEXT
+		SCHED_TEXT
+		CPUIDLE_TEXT
+		LOCK_TEXT
+		*(.fixup)
+		*(.gnu.warning)
+	} :text
+	swapper_pg_dir = SWAPPER_PGD;
+	_etext = .;	/* End of text section */
+
+	RO_DATA(4096)
+
+	/* Will be freed after init */
+	__init_begin = ALIGN(PAGE_SIZE);
+	INIT_TEXT_SECTION(PAGE_SIZE)
+	INIT_DATA_SECTION(16)
+	PERCPU_SECTION(L1_CACHE_BYTES)
+	/* Align to THREAD_SIZE rather than PAGE_SIZE here so any padding page
+	   needed for the THREAD_SIZE aligned init_task gets freed after init */
+	. = ALIGN(THREAD_SIZE);
+	__init_end = .;
+	/* Freed after init ends here */
+
+	_sdata = .;	/* Start of rw data section */
+	_data = .;
+	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
+
+	.got : {
+		*(.got)
+	}
+	.sdata : {
+		*(.sdata)
+	}
+	_edata = .;	/* End of data section */
+
+	BSS_SECTION(0, 0, 0)
+	_end = .;
+
+	.mdebug 0 : {
+		*(.mdebug)
+	}
+	.note 0 : {
+		*(.note)
+	}
+
+	STABS_DEBUG
+	DWARF_DEBUG
+	ELF_DETAILS
+
+	DISCARDS
+}
diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile
new file mode 100644
index 000000000..1cc74f7b5
--- /dev/null
+++ b/arch/alpha/lib/Makefile
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for alpha-specific library files..
+#
+
+asflags-y := $(KBUILD_CFLAGS)
+ccflags-y := -Werror
+
+# Many of these routines have implementations tuned for ev6.
+# Choose them iff we're targeting ev6 specifically.
+ev6-$(CONFIG_ALPHA_EV6) := ev6-
+
+# Several make use of the cttz instruction introduced in ev67.
+ev67-$(CONFIG_ALPHA_EV67) := ev67-
+
+lib-y =	__divqu.o __remqu.o __divlu.o __remlu.o \
+	udiv-qrnnd.o \
+	udelay.o \
+	$(ev6-y)memset.o \
+	$(ev6-y)memcpy.o \
+	memmove.o \
+	checksum.o \
+	csum_partial_copy.o \
+	$(ev67-y)strlen.o \
+	stycpy.o \
+	styncpy.o \
+	$(ev67-y)strchr.o \
+	$(ev67-y)strrchr.o \
+	$(ev6-y)memchr.o \
+	$(ev6-y)copy_user.o \
+	$(ev6-y)clear_user.o \
+	$(ev6-y)csum_ipv6_magic.o \
+	$(ev6-y)clear_page.o \
+	$(ev6-y)copy_page.o \
+	fpreg.o \
+	callback_srm.o srm_puts.o srm_printk.o \
+	fls.o
+
+# The division routines are built from single source, with different defines.
+AFLAGS___divqu.o = -DDIV
+AFLAGS___remqu.o =       -DREM
+AFLAGS___divlu.o = -DDIV       -DINTSIZE
+AFLAGS___remlu.o =       -DREM -DINTSIZE
+
+$(addprefix $(obj)/,__divqu.o __remqu.o __divlu.o __remlu.o): \
+						$(src)/$(ev6-y)divide.S FORCE
+	$(call if_changed_rule,as_o_S)
+
+# There are direct branches between {str*cpy,str*cat} and stx*cpy.
+# Ensure the branches are within range by merging these objects.
+
+LDFLAGS_stycpy.o := -r
+LDFLAGS_styncpy.o := -r
+
+$(obj)/stycpy.o: $(obj)/strcpy.o $(obj)/$(ev67-y)strcat.o \
+		 $(obj)/$(ev6-y)stxcpy.o FORCE
+	$(call if_changed,ld)
+
+$(obj)/styncpy.o: $(obj)/strncpy.o $(obj)/$(ev67-y)strncat.o \
+		 $(obj)/$(ev6-y)stxncpy.o FORCE
+	$(call if_changed,ld)
diff --git a/arch/alpha/lib/callback_srm.S b/arch/alpha/lib/callback_srm.S
new file mode 100644
index 000000000..b13c4a231
--- /dev/null
+++ b/arch/alpha/lib/callback_srm.S
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	arch/alpha/lib/callback_srm.S
+ */
+
+#include <asm/console.h>
+#include <asm/export.h>
+
+.text
+#define HWRPB_CRB_OFFSET 0xc0
+
+#if defined(CONFIG_ALPHA_SRM) || defined(CONFIG_ALPHA_GENERIC)
+.align 4
+srm_dispatch:
+#if defined(CONFIG_ALPHA_GENERIC)
+	ldl	$4,alpha_using_srm
+	beq	$4,nosrm
+#endif
+	ldq	$0,hwrpb	# gp is set up by CALLBACK macro.
+	ldl	$25,0($25)	# Pick up the wrapper data.
+	mov	$20,$21		# Shift arguments right.
+	mov	$19,$20
+	ldq	$1,HWRPB_CRB_OFFSET($0)
+	mov	$18,$19
+	mov	$17,$18
+	mov	$16,$17
+	addq	$0,$1,$2	# CRB address
+	ldq	$27,0($2)	# DISPATCH procedure descriptor (VMS call std)
+	extwl	$25,0,$16	# SRM callback function code
+	ldq	$3,8($27)	# call address
+	extwl	$25,2,$25	# argument information (VMS calling std)
+	jmp	($3)		# Return directly to caller of wrapper.
+
+.align 4
+.globl	srm_fixup
+.ent	srm_fixup
+srm_fixup:
+	ldgp	$29,0($27)
+#if defined(CONFIG_ALPHA_GENERIC)
+	ldl	$4,alpha_using_srm
+	beq	$4,nosrm
+#endif
+	ldq	$0,hwrpb
+	ldq	$1,HWRPB_CRB_OFFSET($0)
+	addq	$0,$1,$2	# CRB address
+	ldq	$27,16($2)	# VA of FIXUP procedure descriptor
+	ldq	$3,8($27)	# call address
+	lda	$25,2($31)	# two integer arguments
+	jmp	($3)		# Return directly to caller of srm_fixup.
+.end    srm_fixup
+
+#if defined(CONFIG_ALPHA_GENERIC)
+.align 3
+nosrm:
+	lda	$0,-1($31)
+	ret
+#endif
+
+#define CALLBACK(NAME, CODE, ARG_CNT) \
+.align 4; .globl callback_##NAME; .ent callback_##NAME; callback_##NAME##: \
+ldgp $29,0($27); br $25,srm_dispatch; .word CODE, ARG_CNT; .end callback_##NAME
+
+#else /* defined(CONFIG_ALPHA_SRM) || defined(CONFIG_ALPHA_GENERIC) */
+
+#define CALLBACK(NAME, CODE, ARG_CNT) \
+.align 3; .globl callback_##NAME; .ent callback_##NAME; callback_##NAME##: \
+lda $0,-1($31); ret; .end callback_##NAME
+
+.align 3
+.globl	srm_fixup
+.ent	srm_fixup
+srm_fixup:
+	lda	$0,-1($31)
+	ret
+.end	srm_fixup
+#endif /* defined(CONFIG_ALPHA_SRM) || defined(CONFIG_ALPHA_GENERIC) */
+
+CALLBACK(puts, CCB_PUTS, 4)
+CALLBACK(open, CCB_OPEN, 3)
+CALLBACK(close, CCB_CLOSE, 2)
+CALLBACK(read, CCB_READ, 5)
+CALLBACK(open_console, CCB_OPEN_CONSOLE, 1)
+CALLBACK(close_console, CCB_CLOSE_CONSOLE, 1)
+CALLBACK(getenv, CCB_GET_ENV, 4)
+CALLBACK(setenv, CCB_SET_ENV, 4)
+CALLBACK(getc, CCB_GETC, 2)
+CALLBACK(reset_term, CCB_RESET_TERM, 2)
+CALLBACK(term_int, CCB_SET_TERM_INT, 3)
+CALLBACK(term_ctl, CCB_SET_TERM_CTL, 3)
+CALLBACK(process_keycode, CCB_PROCESS_KEYCODE, 3)
+CALLBACK(ioctl, CCB_IOCTL, 6)
+CALLBACK(write, CCB_WRITE, 5)
+CALLBACK(reset_env, CCB_RESET_ENV, 4)
+CALLBACK(save_env, CCB_SAVE_ENV, 1)
+CALLBACK(pswitch, CCB_PSWITCH, 3)
+CALLBACK(bios_emul, CCB_BIOS_EMUL, 5)
+
+EXPORT_SYMBOL(callback_getenv)
+EXPORT_SYMBOL(callback_setenv)
+EXPORT_SYMBOL(callback_save_env)
+	
+.data
+__alpha_using_srm:		# For use by bootpheader
+	.long 7			# value is not 1 for link debugging
+	.weak alpha_using_srm; alpha_using_srm = __alpha_using_srm
+__callback_init_done:		# For use by bootpheader
+	.long 7			# value is not 1 for link debugging
+	.weak callback_init_done; callback_init_done = __callback_init_done
+
diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c
new file mode 100644
index 000000000..3f35c3ed6
--- /dev/null
+++ b/arch/alpha/lib/checksum.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/lib/checksum.c
+ *
+ * This file contains network checksum routines that are better done
+ * in an architecture-specific manner due to speed..
+ * Comments in other versions indicate that the algorithms are from RFC1071
+ *
+ * accelerated versions (and 21264 assembly versions ) contributed by
+ *	Rick Gorton	<rick.gorton@alpha-processor.com>
+ */
+ 
+#include <linux/module.h>
+#include <linux/string.h>
+
+#include <asm/byteorder.h>
+
+static inline unsigned short from64to16(unsigned long x)
+{
+	/* Using extract instructions is a bit more efficient
+	   than the original shift/bitmask version.  */
+
+	union {
+		unsigned long	ul;
+		unsigned int	ui[2];
+		unsigned short	us[4];
+	} in_v, tmp_v, out_v;
+
+	in_v.ul = x;
+	tmp_v.ul = (unsigned long) in_v.ui[0] + (unsigned long) in_v.ui[1];
+
+	/* Since the bits of tmp_v.sh[3] are going to always be zero,
+	   we don't have to bother to add that in.  */
+	out_v.ul = (unsigned long) tmp_v.us[0] + (unsigned long) tmp_v.us[1]
+			+ (unsigned long) tmp_v.us[2];
+
+	/* Similarly, out_v.us[2] is always zero for the final add.  */
+	return out_v.us[0] + out_v.us[1];
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented.
+ */
+__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum)
+{
+	return (__force __sum16)~from64to16(
+		(__force u64)saddr + (__force u64)daddr +
+		(__force u64)sum + ((len + proto) << 8));
+}
+EXPORT_SYMBOL(csum_tcpudp_magic);
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum)
+{
+	unsigned long result;
+
+	result = (__force u64)saddr + (__force u64)daddr +
+		 (__force u64)sum + ((len + proto) << 8);
+
+	/* Fold down to 32-bits so we don't lose in the typedef-less 
+	   network stack.  */
+	/* 64 to 33 */
+	result = (result & 0xffffffff) + (result >> 32);
+	/* 33 to 32 */
+	result = (result & 0xffffffff) + (result >> 32);
+	return (__force __wsum)result;
+}
+EXPORT_SYMBOL(csum_tcpudp_nofold);
+
+/*
+ * Do a 64-bit checksum on an arbitrary memory area..
+ *
+ * This isn't a great routine, but it's not _horrible_ either. The
+ * inner loop could be unrolled a bit further, and there are better
+ * ways to do the carry, but this is reasonable.
+ */
+static inline unsigned long do_csum(const unsigned char * buff, int len)
+{
+	int odd, count;
+	unsigned long result = 0;
+
+	if (len <= 0)
+		goto out;
+	odd = 1 & (unsigned long) buff;
+	if (odd) {
+		result = *buff << 8;
+		len--;
+		buff++;
+	}
+	count = len >> 1;		/* nr of 16-bit words.. */
+	if (count) {
+		if (2 & (unsigned long) buff) {
+			result += *(unsigned short *) buff;
+			count--;
+			len -= 2;
+			buff += 2;
+		}
+		count >>= 1;		/* nr of 32-bit words.. */
+		if (count) {
+			if (4 & (unsigned long) buff) {
+				result += *(unsigned int *) buff;
+				count--;
+				len -= 4;
+				buff += 4;
+			}
+			count >>= 1;	/* nr of 64-bit words.. */
+			if (count) {
+				unsigned long carry = 0;
+				do {
+					unsigned long w = *(unsigned long *) buff;
+					count--;
+					buff += 8;
+					result += carry;
+					result += w;
+					carry = (w > result);
+				} while (count);
+				result += carry;
+				result = (result & 0xffffffff) + (result >> 32);
+			}
+			if (len & 4) {
+				result += *(unsigned int *) buff;
+				buff += 4;
+			}
+		}
+		if (len & 2) {
+			result += *(unsigned short *) buff;
+			buff += 2;
+		}
+	}
+	if (len & 1)
+		result += *buff;
+	result = from64to16(result);
+	if (odd)
+		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+	return result;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	return (__force __sum16)~do_csum(iph,ihl*4);
+}
+EXPORT_SYMBOL(ip_fast_csum);
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+	unsigned long result = do_csum(buff, len);
+
+	/* add in old sum, and carry.. */
+	result += (__force u32)sum;
+	/* 32+c bits -> 32 bits */
+	result = (result & 0xffffffff) + (result >> 32);
+	return (__force __wsum)result;
+}
+
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+__sum16 ip_compute_csum(const void *buff, int len)
+{
+	return (__force __sum16)~from64to16(do_csum(buff,len));
+}
+EXPORT_SYMBOL(ip_compute_csum);
diff --git a/arch/alpha/lib/clear_page.S b/arch/alpha/lib/clear_page.S
new file mode 100644
index 000000000..ce02de7b0
--- /dev/null
+++ b/arch/alpha/lib/clear_page.S
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/clear_page.S
+ *
+ * Zero an entire page.
+ */
+#include <asm/export.h>
+	.text
+	.align 4
+	.global clear_page
+	.ent clear_page
+clear_page:
+	.prologue 0
+
+	lda	$0,128
+	nop
+	unop
+	nop
+
+1:	stq	$31,0($16)
+	stq	$31,8($16)
+	stq	$31,16($16)
+	stq	$31,24($16)
+
+	stq	$31,32($16)
+	stq	$31,40($16)
+	stq	$31,48($16)
+	subq	$0,1,$0
+
+	stq	$31,56($16)
+	addq	$16,64,$16
+	unop
+	bne	$0,1b
+
+	ret
+	nop
+	unop
+	nop
+
+	.end clear_page
+	EXPORT_SYMBOL(clear_page)
diff --git a/arch/alpha/lib/clear_user.S b/arch/alpha/lib/clear_user.S
new file mode 100644
index 000000000..db6c6ca45
--- /dev/null
+++ b/arch/alpha/lib/clear_user.S
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/clear_user.S
+ * Contributed by Richard Henderson <rth@tamu.edu>
+ *
+ * Zero user space, handling exceptions as we go.
+ *
+ * We have to make sure that $0 is always up-to-date and contains the
+ * right "bytes left to zero" value (and that it is updated only _after_
+ * a successful copy).  There is also some rather minor exception setup
+ * stuff.
+ */
+#include <asm/export.h>
+
+/* Allow an exception for an insn; exit if we get one.  */
+#define EX(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exception-99b($31); 	\
+	.previous
+
+	.set noat
+	.set noreorder
+	.align 4
+
+	.globl __clear_user
+	.ent __clear_user
+	.frame	$30, 0, $26
+	.prologue 0
+
+$loop:
+	and	$1, 3, $4	# e0    :
+	beq	$4, 1f		# .. e1 :
+
+0:	EX( stq_u $31, 0($16) )	# e0    : zero one word
+	subq	$0, 8, $0	# .. e1 :
+	subq	$4, 1, $4	# e0    :
+	addq	$16, 8, $16	# .. e1 :
+	bne	$4, 0b		# e1    :
+	unop			#       :
+
+1:	bic	$1, 3, $1	# e0    :
+	beq	$1, $tail	# .. e1 :
+
+2:	EX( stq_u $31, 0($16) )	# e0    : zero four words
+	subq	$0, 8, $0	# .. e1 :
+	EX( stq_u $31, 8($16) )	# e0    :
+	subq	$0, 8, $0	# .. e1 :
+	EX( stq_u $31, 16($16) )	# e0    :
+	subq	$0, 8, $0	# .. e1 :
+	EX( stq_u $31, 24($16) )	# e0    :
+	subq	$0, 8, $0	# .. e1 :
+	subq	$1, 4, $1	# e0    :
+	addq	$16, 32, $16	# .. e1 :
+	bne	$1, 2b		# e1    :
+
+$tail:
+	bne	$2, 1f		# e1    : is there a tail to do?
+	ret	$31, ($26), 1	# .. e1 :
+
+1:	EX( ldq_u $5, 0($16) )	# e0    :
+	clr	$0		# .. e1 :
+	nop			# e1    :
+	mskqh	$5, $0, $5	# e0    :
+	EX( stq_u $5, 0($16) )	# e0    :
+	ret	$31, ($26), 1	# .. e1 :
+
+__clear_user:
+	and	$17, $17, $0
+	and	$16, 7, $4	# e0    : find dest misalignment
+	beq	$0, $zerolength # .. e1 :
+	addq	$0, $4, $1	# e0    : bias counter
+	and	$1, 7, $2	# e1    : number of bytes in tail
+	srl	$1, 3, $1	# e0    :
+	beq	$4, $loop	# .. e1 :
+
+	EX( ldq_u $5, 0($16) )	# e0    : load dst word to mask back in
+	beq	$1, $oneword	# .. e1 : sub-word store?
+
+	mskql	$5, $16, $5	# e0    : take care of misaligned head
+	addq	$16, 8, $16	# .. e1 :
+	EX( stq_u $5, -8($16) )	# e0    :
+	addq	$0, $4, $0	# .. e1 : bytes left -= 8 - misalignment
+	subq	$1, 1, $1	# e0    :
+	subq	$0, 8, $0	# .. e1 :
+	br	$loop		# e1    :
+	unop			#       :
+
+$oneword:
+	mskql	$5, $16, $4	# e0    :
+	mskqh	$5, $2, $5	# e0    :
+	or	$5, $4, $5	# e1    :
+	EX( stq_u $5, 0($16) )	# e0    :
+	clr	$0		# .. e1 :
+
+$zerolength:
+$exception:
+	ret	$31, ($26), 1	# .. e1 :
+
+	.end __clear_user
+	EXPORT_SYMBOL(__clear_user)
diff --git a/arch/alpha/lib/copy_page.S b/arch/alpha/lib/copy_page.S
new file mode 100644
index 000000000..5439a30c7
--- /dev/null
+++ b/arch/alpha/lib/copy_page.S
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/copy_page.S
+ *
+ * Copy an entire page.
+ */
+#include <asm/export.h>
+	.text
+	.align 4
+	.global copy_page
+	.ent copy_page
+copy_page:
+	.prologue 0
+
+	lda	$18,128
+	nop
+	unop
+	nop
+
+1:	ldq	$0,0($17)
+	ldq	$1,8($17)
+	ldq	$2,16($17)
+	ldq	$3,24($17)
+
+	ldq	$4,32($17)
+	ldq	$5,40($17)
+	ldq	$6,48($17)
+	ldq	$7,56($17)
+
+	stq	$0,0($16)
+	subq	$18,1,$18
+	stq	$1,8($16)
+	addq	$17,64,$17
+
+	stq	$2,16($16)
+	stq	$3,24($16)
+	stq	$4,32($16)
+	stq	$5,40($16)
+
+	stq	$6,48($16)
+	stq	$7,56($16)
+	addq	$16,64,$16
+	bne	$18, 1b
+
+	ret
+	nop
+	unop
+	nop
+
+	.end copy_page
+	EXPORT_SYMBOL(copy_page)
diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S
new file mode 100644
index 000000000..32ab0344b
--- /dev/null
+++ b/arch/alpha/lib/copy_user.S
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/copy_user.S
+ *
+ * Copy to/from user space, handling exceptions as we go..  This
+ * isn't exactly pretty.
+ *
+ * This is essentially the same as "memcpy()", but with a few twists.
+ * Notably, we have to make sure that $0 is always up-to-date and
+ * contains the right "bytes left to copy" value (and that it is updated
+ * only _after_ a successful copy). There is also some rather minor
+ * exception setup stuff..
+ */
+
+#include <asm/export.h>
+
+/* Allow an exception for an insn; exit if we get one.  */
+#define EXI(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exitin-99b($31);	\
+	.previous
+
+#define EXO(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exitout-99b($31);	\
+	.previous
+
+	.set noat
+	.align 4
+	.globl __copy_user
+	.ent __copy_user
+__copy_user:
+	.prologue 0
+	mov $18,$0
+	and $16,7,$3
+	beq $0,$35
+	beq $3,$36
+	subq $3,8,$3
+	.align 4
+$37:
+	EXI( ldq_u $1,0($17) )
+	EXO( ldq_u $2,0($16) )
+	extbl $1,$17,$1
+	mskbl $2,$16,$2
+	insbl $1,$16,$1
+	addq $3,1,$3
+	bis $1,$2,$1
+	EXO( stq_u $1,0($16) )
+	subq $0,1,$0
+	addq $16,1,$16
+	addq $17,1,$17
+	beq $0,$41
+	bne $3,$37
+$36:
+	and $17,7,$1
+	bic $0,7,$4
+	beq $1,$43
+	beq $4,$48
+	EXI( ldq_u $3,0($17) )
+	.align 4
+$50:
+	EXI( ldq_u $2,8($17) )
+	subq $4,8,$4
+	extql $3,$17,$3
+	extqh $2,$17,$1
+	bis $3,$1,$1
+	EXO( stq $1,0($16) )
+	addq $17,8,$17
+	subq $0,8,$0
+	addq $16,8,$16
+	bis $2,$2,$3
+	bne $4,$50
+$48:
+	beq $0,$41
+	.align 4
+$57:
+	EXI( ldq_u $1,0($17) )
+	EXO( ldq_u $2,0($16) )
+	extbl $1,$17,$1
+	mskbl $2,$16,$2
+	insbl $1,$16,$1
+	bis $1,$2,$1
+	EXO( stq_u $1,0($16) )
+	subq $0,1,$0
+	addq $16,1,$16
+	addq $17,1,$17
+	bne $0,$57
+	br $31,$41
+	.align 4
+$43:
+	beq $4,$65
+	.align 4
+$66:
+	EXI( ldq $1,0($17) )
+	subq $4,8,$4
+	EXO( stq $1,0($16) )
+	addq $17,8,$17
+	subq $0,8,$0
+	addq $16,8,$16
+	bne $4,$66
+$65:
+	beq $0,$41
+	EXI( ldq $2,0($17) )
+	EXO( ldq $1,0($16) )
+	mskql $2,$0,$2
+	mskqh $1,$0,$1
+	bis $2,$1,$2
+	EXO( stq $2,0($16) )
+	bis $31,$31,$0
+$41:
+$35:
+$exitin:
+$exitout:
+	ret $31,($26),1
+
+	.end __copy_user
+EXPORT_SYMBOL(__copy_user)
diff --git a/arch/alpha/lib/csum_ipv6_magic.S b/arch/alpha/lib/csum_ipv6_magic.S
new file mode 100644
index 000000000..c7b213ab0
--- /dev/null
+++ b/arch/alpha/lib/csum_ipv6_magic.S
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/csum_ipv6_magic.S
+ * Contributed by Richard Henderson <rth@tamu.edu>
+ *
+ * unsigned short csum_ipv6_magic(struct in6_addr *saddr,
+ *                                struct in6_addr *daddr,
+ *                                __u32 len,
+ *                                unsigned short proto,
+ *                                unsigned int csum);
+ *
+ * Misalignment handling (which costs 16 instructions / 8 cycles)
+ * added by Ivan Kokshaysky <ink@jurassic.park.msu.ru>
+ */
+
+#include <asm/export.h>
+	.globl csum_ipv6_magic
+	.align 4
+	.ent csum_ipv6_magic
+	.frame $30,0,$26,0
+csum_ipv6_magic:
+	.prologue 0
+
+	ldq_u	$0,0($16)	# e0    : load src & dst addr words
+	zapnot	$20,15,$20	# .. e1 : zero extend incoming csum
+	extqh	$18,1,$4	# e0    : byte swap len & proto while we wait
+	ldq_u	$21,7($16)	# .. e1 : handle misalignment
+
+	extbl	$18,1,$5	# e0	:
+	ldq_u	$1,8($16)	# .. e1 :
+	extbl	$18,2,$6	# e0 	:
+	ldq_u	$22,15($16)	# .. e1 :
+
+	extbl	$18,3,$18	# e0	:
+	ldq_u	$2,0($17)	# .. e1 :
+	sra	$4,32,$4	# e0	:
+	ldq_u	$23,7($17)	# .. e1 :
+
+	extql	$0,$16,$0	# e0	:
+	ldq_u	$3,8($17)	# .. e1 :
+	extqh	$21,$16,$21	# e0	:
+	ldq_u	$24,15($17)	# .. e1 :
+
+	sll	$5,16,$5	# e0	:
+	or	$0,$21,$0	# .. e1 : 1st src word complete
+	extql	$1,$16,$1	# e0	:
+	addq	$20,$0,$20	# .. e1 : begin summing the words
+
+	extqh	$22,$16,$22	# e0	:
+	cmpult	$20,$0,$0	# .. e1 :
+	sll	$6,8,$6		# e0	:
+	or	$1,$22,$1	# .. e1 : 2nd src word complete
+
+	extql	$2,$17,$2	# e0	:
+	or	$4,$18,$18	# .. e1 :
+	extqh	$23,$17,$23	# e0	:
+	or	$5,$6,$5	# .. e1 :
+
+	extql	$3,$17,$3	# e0	:
+	or	$2,$23,$2	# .. e1 : 1st dst word complete
+	extqh	$24,$17,$24	# e0	:
+	or	$18,$5,$18	# .. e1 : len complete
+
+	extwh	$19,7,$7	# e0    :
+	or	$3,$24,$3	# .. e1 : 2nd dst word complete
+	extbl	$19,1,$19	# e0    :
+	addq	$20,$1,$20	# .. e1 :
+
+	or	$19,$7,$19	# e0    :
+	cmpult	$20,$1,$1	# .. e1 :
+	sll	$19,48,$19	# e0    :
+	nop			# .. e0 :
+
+	sra	$19,32,$19	# e0    : proto complete
+	addq	$20,$2,$20	# .. e1 :
+	cmpult	$20,$2,$2	# e0    :
+	addq	$20,$3,$20	# .. e1 :
+
+	cmpult	$20,$3,$3	# e0    :
+	addq	$20,$18,$20	# .. e1 :
+	cmpult	$20,$18,$18	# e0    :
+	addq	$20,$19,$20	# .. e1 :
+
+	cmpult	$20,$19,$19	# e0    :
+	addq	$0,$1,$0	# .. e1 : merge the carries back into the csum
+	addq	$2,$3,$2	# e0    :
+	addq	$18,$19,$18	# .. e1 :
+
+	addq	$0,$2,$0	# e0    :
+	addq	$20,$18,$20	# .. e1 :
+	addq	$0,$20,$0	# e0    :
+	unop			#       :
+
+	extwl	$0,2,$2		# e0    : begin folding the 64-bit value
+	zapnot	$0,3,$3		# .. e1 :
+	extwl	$0,4,$1		# e0    :
+	addq	$2,$3,$3	# .. e1 :
+
+	extwl	$0,6,$0		# e0    :
+	addq	$3,$1,$3	# .. e1 :
+	addq	$0,$3,$0	# e0    :
+	unop			#       :
+
+	extwl	$0,2,$1		# e0    : fold 18-bit value
+	zapnot	$0,3,$0		# .. e1 :
+	addq	$0,$1,$0	# e0    :
+	unop			#       :
+
+	extwl	$0,2,$1		# e0    : fold 17-bit value
+	zapnot	$0,3,$0		# .. e1 :
+	addq	$0,$1,$0	# e0    :
+	not	$0,$0		# .. e1 : and complement.
+
+	zapnot	$0,3,$0		# e0    :
+	ret			# .. e1 :
+
+	.end csum_ipv6_magic
+	EXPORT_SYMBOL(csum_ipv6_magic)
diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c
new file mode 100644
index 000000000..4d180d96f
--- /dev/null
+++ b/arch/alpha/lib/csum_partial_copy.c
@@ -0,0 +1,363 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * csum_partial_copy - do IP checksumming and copy
+ *
+ * (C) Copyright 1996 Linus Torvalds
+ * accelerated versions (and 21264 assembly versions ) contributed by
+ *	Rick Gorton	<rick.gorton@alpha-processor.com>
+ *
+ * Don't look at this too closely - you'll go mad. The things
+ * we do for performance..
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+#include <net/checksum.h>
+
+
+#define ldq_u(x,y) \
+__asm__ __volatile__("ldq_u %0,%1":"=r" (x):"m" (*(const unsigned long *)(y)))
+
+#define stq_u(x,y) \
+__asm__ __volatile__("stq_u %1,%0":"=m" (*(unsigned long *)(y)):"r" (x))
+
+#define extql(x,y,z) \
+__asm__ __volatile__("extql %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define extqh(x,y,z) \
+__asm__ __volatile__("extqh %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define mskql(x,y,z) \
+__asm__ __volatile__("mskql %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define mskqh(x,y,z) \
+__asm__ __volatile__("mskqh %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define insql(x,y,z) \
+__asm__ __volatile__("insql %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define insqh(x,y,z) \
+__asm__ __volatile__("insqh %1,%2,%0":"=r" (z):"r" (x),"r" (y))
+
+#define __get_word(insn,x,ptr)				\
+({							\
+	long __guu_err;					\
+	__asm__ __volatile__(				\
+	"1:	"#insn" %0,%2\n"			\
+	"2:\n"						\
+	EXC(1b,2b,%0,%1)				\
+		: "=r"(x), "=r"(__guu_err)		\
+		: "m"(__m(ptr)), "1"(0));		\
+	__guu_err;					\
+})
+
+static inline unsigned short from64to16(unsigned long x)
+{
+	/* Using extract instructions is a bit more efficient
+	   than the original shift/bitmask version.  */
+
+	union {
+		unsigned long	ul;
+		unsigned int	ui[2];
+		unsigned short	us[4];
+	} in_v, tmp_v, out_v;
+
+	in_v.ul = x;
+	tmp_v.ul = (unsigned long) in_v.ui[0] + (unsigned long) in_v.ui[1];
+
+	/* Since the bits of tmp_v.sh[3] are going to always be zero,
+	   we don't have to bother to add that in.  */
+	out_v.ul = (unsigned long) tmp_v.us[0] + (unsigned long) tmp_v.us[1]
+			+ (unsigned long) tmp_v.us[2];
+
+	/* Similarly, out_v.us[2] is always zero for the final add.  */
+	return out_v.us[0] + out_v.us[1];
+}
+
+
+
+/*
+ * Ok. This isn't fun, but this is the EASY case.
+ */
+static inline unsigned long
+csum_partial_cfu_aligned(const unsigned long __user *src, unsigned long *dst,
+			 long len)
+{
+	unsigned long checksum = ~0U;
+	unsigned long carry = 0;
+
+	while (len >= 0) {
+		unsigned long word;
+		if (__get_word(ldq, word, src))
+			return 0;
+		checksum += carry;
+		src++;
+		checksum += word;
+		len -= 8;
+		carry = checksum < word;
+		*dst = word;
+		dst++;
+	}
+	len += 8;
+	checksum += carry;
+	if (len) {
+		unsigned long word, tmp;
+		if (__get_word(ldq, word, src))
+			return 0;
+		tmp = *dst;
+		mskql(word, len, word);
+		checksum += word;
+		mskqh(tmp, len, tmp);
+		carry = checksum < word;
+		*dst = word | tmp;
+		checksum += carry;
+	}
+	return checksum;
+}
+
+/*
+ * This is even less fun, but this is still reasonably
+ * easy.
+ */
+static inline unsigned long
+csum_partial_cfu_dest_aligned(const unsigned long __user *src,
+			      unsigned long *dst,
+			      unsigned long soff,
+			      long len)
+{
+	unsigned long first;
+	unsigned long word, carry;
+	unsigned long lastsrc = 7+len+(unsigned long)src;
+	unsigned long checksum = ~0U;
+
+	if (__get_word(ldq_u, first,src))
+		return 0;
+	carry = 0;
+	while (len >= 0) {
+		unsigned long second;
+
+		if (__get_word(ldq_u, second, src+1))
+			return 0;
+		extql(first, soff, word);
+		len -= 8;
+		src++;
+		extqh(second, soff, first);
+		checksum += carry;
+		word |= first;
+		first = second;
+		checksum += word;
+		*dst = word;
+		dst++;
+		carry = checksum < word;
+	}
+	len += 8;
+	checksum += carry;
+	if (len) {
+		unsigned long tmp;
+		unsigned long second;
+		if (__get_word(ldq_u, second, lastsrc))
+			return 0;
+		tmp = *dst;
+		extql(first, soff, word);
+		extqh(second, soff, first);
+		word |= first;
+		mskql(word, len, word);
+		checksum += word;
+		mskqh(tmp, len, tmp);
+		carry = checksum < word;
+		*dst = word | tmp;
+		checksum += carry;
+	}
+	return checksum;
+}
+
+/*
+ * This is slightly less fun than the above..
+ */
+static inline unsigned long
+csum_partial_cfu_src_aligned(const unsigned long __user *src,
+			     unsigned long *dst,
+			     unsigned long doff,
+			     long len,
+			     unsigned long partial_dest)
+{
+	unsigned long carry = 0;
+	unsigned long word;
+	unsigned long second_dest;
+	unsigned long checksum = ~0U;
+
+	mskql(partial_dest, doff, partial_dest);
+	while (len >= 0) {
+		if (__get_word(ldq, word, src))
+			return 0;
+		len -= 8;
+		insql(word, doff, second_dest);
+		checksum += carry;
+		stq_u(partial_dest | second_dest, dst);
+		src++;
+		checksum += word;
+		insqh(word, doff, partial_dest);
+		carry = checksum < word;
+		dst++;
+	}
+	len += 8;
+	if (len) {
+		checksum += carry;
+		if (__get_word(ldq, word, src))
+			return 0;
+		mskql(word, len, word);
+		len -= 8;
+		checksum += word;
+		insql(word, doff, second_dest);
+		len += doff;
+		carry = checksum < word;
+		partial_dest |= second_dest;
+		if (len >= 0) {
+			stq_u(partial_dest, dst);
+			if (!len) goto out;
+			dst++;
+			insqh(word, doff, partial_dest);
+		}
+		doff = len;
+	}
+	ldq_u(second_dest, dst);
+	mskqh(second_dest, doff, second_dest);
+	stq_u(partial_dest | second_dest, dst);
+out:
+	checksum += carry;
+	return checksum;
+}
+
+/*
+ * This is so totally un-fun that it's frightening. Don't
+ * look at this too closely, you'll go blind.
+ */
+static inline unsigned long
+csum_partial_cfu_unaligned(const unsigned long __user * src,
+			   unsigned long * dst,
+			   unsigned long soff, unsigned long doff,
+			   long len, unsigned long partial_dest)
+{
+	unsigned long carry = 0;
+	unsigned long first;
+	unsigned long lastsrc;
+	unsigned long checksum = ~0U;
+
+	if (__get_word(ldq_u, first, src))
+		return 0;
+	lastsrc = 7+len+(unsigned long)src;
+	mskql(partial_dest, doff, partial_dest);
+	while (len >= 0) {
+		unsigned long second, word;
+		unsigned long second_dest;
+
+		if (__get_word(ldq_u, second, src+1))
+			return 0;
+		extql(first, soff, word);
+		checksum += carry;
+		len -= 8;
+		extqh(second, soff, first);
+		src++;
+		word |= first;
+		first = second;
+		insql(word, doff, second_dest);
+		checksum += word;
+		stq_u(partial_dest | second_dest, dst);
+		carry = checksum < word;
+		insqh(word, doff, partial_dest);
+		dst++;
+	}
+	len += doff;
+	checksum += carry;
+	if (len >= 0) {
+		unsigned long second, word;
+		unsigned long second_dest;
+
+		if (__get_word(ldq_u, second, lastsrc))
+			return 0;
+		extql(first, soff, word);
+		extqh(second, soff, first);
+		word |= first;
+		first = second;
+		mskql(word, len-doff, word);
+		checksum += word;
+		insql(word, doff, second_dest);
+		carry = checksum < word;
+		stq_u(partial_dest | second_dest, dst);
+		if (len) {
+			ldq_u(second_dest, dst+1);
+			insqh(word, doff, partial_dest);
+			mskqh(second_dest, len, second_dest);
+			stq_u(partial_dest | second_dest, dst+1);
+		}
+		checksum += carry;
+	} else {
+		unsigned long second, word;
+		unsigned long second_dest;
+
+		if (__get_word(ldq_u, second, lastsrc))
+			return 0;
+		extql(first, soff, word);
+		extqh(second, soff, first);
+		word |= first;
+		ldq_u(second_dest, dst);
+		mskql(word, len-doff, word);
+		checksum += word;
+		mskqh(second_dest, len, second_dest);
+		carry = checksum < word;
+		insql(word, doff, word);
+		stq_u(partial_dest | word | second_dest, dst);
+		checksum += carry;
+	}
+	return checksum;
+}
+
+static __wsum __csum_and_copy(const void __user *src, void *dst, int len)
+{
+	unsigned long soff = 7 & (unsigned long) src;
+	unsigned long doff = 7 & (unsigned long) dst;
+	unsigned long checksum;
+
+	if (!doff) {
+		if (!soff)
+			checksum = csum_partial_cfu_aligned(
+				(const unsigned long __user *) src,
+				(unsigned long *) dst, len-8);
+		else
+			checksum = csum_partial_cfu_dest_aligned(
+				(const unsigned long __user *) src,
+				(unsigned long *) dst,
+				soff, len-8);
+	} else {
+		unsigned long partial_dest;
+		ldq_u(partial_dest, dst);
+		if (!soff)
+			checksum = csum_partial_cfu_src_aligned(
+				(const unsigned long __user *) src,
+				(unsigned long *) dst,
+				doff, len-8, partial_dest);
+		else
+			checksum = csum_partial_cfu_unaligned(
+				(const unsigned long __user *) src,
+				(unsigned long *) dst,
+				soff, doff, len-8, partial_dest);
+	}
+	return (__force __wsum)from64to16 (checksum);
+}
+
+__wsum
+csum_and_copy_from_user(const void __user *src, void *dst, int len)
+{
+	if (!access_ok(src, len))
+		return 0;
+	return __csum_and_copy(src, dst, len);
+}
+
+__wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len)
+{
+	return __csum_and_copy((__force const void __user *)src,
+						dst, len);
+}
+EXPORT_SYMBOL(csum_partial_copy_nocheck);
diff --git a/arch/alpha/lib/dbg_current.S b/arch/alpha/lib/dbg_current.S
new file mode 100644
index 000000000..be6612131
--- /dev/null
+++ b/arch/alpha/lib/dbg_current.S
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/dbg_current.S
+ * Contributed by Richard Henderson (rth@cygnus.com)
+ *
+ * Trap if we find current not correct.
+ */
+
+#include <asm/pal.h>
+
+	.text
+	.set noat
+
+	.globl _mcount
+	.ent _mcount
+_mcount:
+	.frame $30, 0, $28, 0
+	.prologue 0
+
+	lda	$0, -0x4000($30)
+	cmpult	$8, $30, $1
+	cmpule	$0, $30, $2
+	and	$1, $2, $3
+	bne	$3, 1f
+
+	call_pal PAL_bugchk
+
+1:	ret	$31, ($28), 1
+
+	.end _mcount
diff --git a/arch/alpha/lib/dbg_stackcheck.S b/arch/alpha/lib/dbg_stackcheck.S
new file mode 100644
index 000000000..b3b6fc94f
--- /dev/null
+++ b/arch/alpha/lib/dbg_stackcheck.S
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/dbg_stackcheck.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Verify that we have not overflowed the stack.  Oops if we have.
+ */
+
+#include <asm/asm-offsets.h>
+
+	.text
+	.set noat
+
+	.align 3
+	.globl _mcount
+	.ent _mcount
+_mcount:
+	.frame $30, 0, $28, 0
+	.prologue 0
+
+	lda	$0, TASK_SIZE($8)
+	cmpult	$30, $0, $0
+	bne	$0, 1f
+	ret	($28)
+1:	stq	$31, -8($31)	# oops me, damn it.
+	br	1b
+
+	.end _mcount
diff --git a/arch/alpha/lib/dbg_stackkill.S b/arch/alpha/lib/dbg_stackkill.S
new file mode 100644
index 000000000..6d9197e52
--- /dev/null
+++ b/arch/alpha/lib/dbg_stackkill.S
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/dbg_stackkill.S
+ * Contributed by Richard Henderson (rth@cygnus.com)
+ *
+ * Clobber the balance of the kernel stack, hoping to catch
+ * uninitialized local variables in the act.
+ */
+
+#include <asm/asm-offsets.h>
+
+	.text
+	.set noat
+
+	.align 5
+	.globl _mcount
+	.ent _mcount
+_mcount:
+	.frame $30, 0, $28, 0
+	.prologue 0
+
+	ldi	$0, 0xdeadbeef
+	lda	$2, -STACK_SIZE
+	sll	$0, 32, $1
+	and	$30, $2, $2
+	or	$0, $1, $0
+	lda	$2, TASK_SIZE($2)
+	cmpult	$2, $30, $1
+	beq	$1, 2f
+1:	stq	$0, 0($2)
+	addq	$2, 8, $2
+	cmpult	$2, $30, $1
+	bne	$1, 1b
+2:	ret	($28)
+
+	.end _mcount
diff --git a/arch/alpha/lib/divide.S b/arch/alpha/lib/divide.S
new file mode 100644
index 000000000..2b60eb45e
--- /dev/null
+++ b/arch/alpha/lib/divide.S
@@ -0,0 +1,199 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/divide.S
+ *
+ * (C) 1995 Linus Torvalds
+ *
+ * Alpha division..
+ */
+
+/*
+ * The alpha chip doesn't provide hardware division, so we have to do it
+ * by hand.  The compiler expects the functions
+ *
+ *	__divqu: 64-bit unsigned long divide
+ *	__remqu: 64-bit unsigned long remainder
+ *	__divqs/__remqs: signed 64-bit
+ *	__divlu/__remlu: unsigned 32-bit
+ *	__divls/__remls: signed 32-bit
+ *
+ * These are not normal C functions: instead of the normal
+ * calling sequence, these expect their arguments in registers
+ * $24 and $25, and return the result in $27. Register $28 may
+ * be clobbered (assembly temporary), anything else must be saved. 
+ *
+ * In short: painful.
+ *
+ * This is a rather simple bit-at-a-time algorithm: it's very good
+ * at dividing random 64-bit numbers, but the more usual case where
+ * the divisor is small is handled better by the DEC algorithm
+ * using lookup tables. This uses much less memory, though, and is
+ * nicer on the cache.. Besides, I don't know the copyright status
+ * of the DEC code.
+ */
+
+/*
+ * My temporaries:
+ *	$0 - current bit
+ *	$1 - shifted divisor
+ *	$2 - modulus/quotient
+ *
+ *	$23 - return address
+ *	$24 - dividend
+ *	$25 - divisor
+ *
+ *	$27 - quotient/modulus
+ *	$28 - compare status
+ */
+
+#include <asm/export.h>
+#define halt .long 0
+
+/*
+ * Select function type and registers
+ */
+#define mask	$0
+#define divisor	$1
+#define compare $28
+#define tmp1	$3
+#define tmp2	$4
+
+#ifdef DIV
+#define DIV_ONLY(x,y...) x,##y
+#define MOD_ONLY(x,y...)
+#define func(x) __div##x
+#define modulus $2
+#define quotient $27
+#define GETSIGN(x) xor $24,$25,x
+#define STACK 48
+#else
+#define DIV_ONLY(x,y...)
+#define MOD_ONLY(x,y...) x,##y
+#define func(x) __rem##x
+#define modulus $27
+#define quotient $2
+#define GETSIGN(x) bis $24,$24,x
+#define STACK 32
+#endif
+
+/*
+ * For 32-bit operations, we need to extend to 64-bit
+ */
+#ifdef INTSIZE
+#define ufunction func(lu)
+#define sfunction func(l)
+#define LONGIFY(x) zapnot x,15,x
+#define SLONGIFY(x) addl x,0,x
+#else
+#define ufunction func(qu)
+#define sfunction func(q)
+#define LONGIFY(x)
+#define SLONGIFY(x)
+#endif
+
+.set noat
+.align	3
+.globl	ufunction
+.ent	ufunction
+ufunction:
+	subq	$30,STACK,$30
+	.frame	$30,STACK,$23
+	.prologue 0
+
+7:	stq	$1, 0($30)
+	bis	$25,$25,divisor
+	stq	$2, 8($30)
+	bis	$24,$24,modulus
+	stq	$0,16($30)
+	bis	$31,$31,quotient
+	LONGIFY(divisor)
+	stq	tmp1,24($30)
+	LONGIFY(modulus)
+	bis	$31,1,mask
+	DIV_ONLY(stq tmp2,32($30))
+	beq	divisor, 9f			/* div by zero */
+
+#ifdef INTSIZE
+	/*
+	 * shift divisor left, using 3-bit shifts for
+	 * 32-bit divides as we can't overflow. Three-bit
+	 * shifts will result in looping three times less
+	 * here, but can result in two loops more later.
+	 * Thus using a large shift isn't worth it (and
+	 * s8add pairs better than a sll..)
+	 */
+1:	cmpult	divisor,modulus,compare
+	s8addq	divisor,$31,divisor
+	s8addq	mask,$31,mask
+	bne	compare,1b
+#else
+1:	cmpult	divisor,modulus,compare
+	blt     divisor, 2f
+	addq	divisor,divisor,divisor
+	addq	mask,mask,mask
+	bne	compare,1b
+	unop
+#endif
+
+	/* ok, start to go right again.. */
+2:	DIV_ONLY(addq quotient,mask,tmp2)
+	srl	mask,1,mask
+	cmpule	divisor,modulus,compare
+	subq	modulus,divisor,tmp1
+	DIV_ONLY(cmovne compare,tmp2,quotient)
+	srl	divisor,1,divisor
+	cmovne	compare,tmp1,modulus
+	bne	mask,2b
+
+9:	ldq	$1, 0($30)
+	ldq	$2, 8($30)
+	ldq	$0,16($30)
+	ldq	tmp1,24($30)
+	DIV_ONLY(ldq tmp2,32($30))
+	addq	$30,STACK,$30
+	ret	$31,($23),1
+	.end	ufunction
+EXPORT_SYMBOL(ufunction)
+
+/*
+ * Uhh.. Ugly signed division. I'd rather not have it at all, but
+ * it's needed in some circumstances. There are different ways to
+ * handle this, really. This does:
+ * 	-a / b = a / -b = -(a / b)
+ *	-a % b = -(a % b)
+ *	a % -b = a % b
+ * which is probably not the best solution, but at least should
+ * have the property that (x/y)*y + (x%y) = x.
+ */
+.align 3
+.globl	sfunction
+.ent	sfunction
+sfunction:
+	subq	$30,STACK,$30
+	.frame	$30,STACK,$23
+	.prologue 0
+	bis	$24,$25,$28
+	SLONGIFY($28)
+	bge	$28,7b
+	stq	$24,0($30)
+	subq	$31,$24,$28
+	stq	$25,8($30)
+	cmovlt	$24,$28,$24	/* abs($24) */
+	stq	$23,16($30)
+	subq	$31,$25,$28
+	stq	tmp1,24($30)
+	cmovlt	$25,$28,$25	/* abs($25) */
+	unop
+	bsr	$23,ufunction
+	ldq	$24,0($30)
+	ldq	$25,8($30)
+	GETSIGN($28)
+	subq	$31,$27,tmp1
+	SLONGIFY($28)
+	ldq	$23,16($30)
+	cmovlt	$28,tmp1,$27
+	ldq	tmp1,24($30)
+	addq	$30,STACK,$30
+	ret	$31,($23),1
+	.end	sfunction
+EXPORT_SYMBOL(sfunction)
diff --git a/arch/alpha/lib/ev6-clear_page.S b/arch/alpha/lib/ev6-clear_page.S
new file mode 100644
index 000000000..325864c81
--- /dev/null
+++ b/arch/alpha/lib/ev6-clear_page.S
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-clear_page.S
+ *
+ * Zero an entire page.
+ */
+#include <asm/export.h>
+        .text
+        .align 4
+        .global clear_page
+        .ent clear_page
+clear_page:
+        .prologue 0
+
+	lda	$0,128
+	lda	$1,125
+	addq	$16,64,$2
+	addq	$16,128,$3
+
+	addq	$16,192,$17
+	wh64	($16)
+	wh64	($2)
+	wh64	($3)
+
+1:	wh64	($17)
+	stq	$31,0($16)
+	subq	$0,1,$0
+	subq	$1,1,$1
+
+	stq	$31,8($16)
+	stq	$31,16($16)
+	addq	$17,64,$2
+	nop
+
+	stq	$31,24($16)
+	stq	$31,32($16)
+	cmovgt	$1,$2,$17
+	nop
+
+	stq	$31,40($16)
+	stq	$31,48($16)
+	nop
+	nop
+
+	stq	$31,56($16)
+	addq	$16,64,$16
+	nop
+	bne	$0,1b
+
+	ret
+	nop
+	nop
+	nop
+
+	.end clear_page
+	EXPORT_SYMBOL(clear_page)
diff --git a/arch/alpha/lib/ev6-clear_user.S b/arch/alpha/lib/ev6-clear_user.S
new file mode 100644
index 000000000..7e644f83c
--- /dev/null
+++ b/arch/alpha/lib/ev6-clear_user.S
@@ -0,0 +1,213 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-clear_user.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Zero user space, handling exceptions as we go.
+ *
+ * We have to make sure that $0 is always up-to-date and contains the
+ * right "bytes left to zero" value (and that it is updated only _after_
+ * a successful copy).  There is also some rather minor exception setup
+ * stuff.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ * Determining actual stalls (other than slotting) doesn't appear to be easy to do.
+ * From perusing the source code context where this routine is called, it is
+ * a fair assumption that significant fractions of entire pages are zeroed, so
+ * it's going to be worth the effort to hand-unroll a big loop, and use wh64.
+ * ASSUMPTION:
+ *	The believed purpose of only updating $0 after a store is that a signal
+ *	may come along during the execution of this chunk of code, and we don't
+ *	want to leave a hole (and we also want to avoid repeating lots of work)
+ */
+
+#include <asm/export.h>
+/* Allow an exception for an insn; exit if we get one.  */
+#define EX(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exception-99b($31); 	\
+	.previous
+
+	.set noat
+	.set noreorder
+	.align 4
+
+	.globl __clear_user
+	.ent __clear_user
+	.frame	$30, 0, $26
+	.prologue 0
+
+				# Pipeline info : Slotting & Comments
+__clear_user:
+	and	$17, $17, $0
+	and	$16, 7, $4	# .. E  .. ..	: find dest head misalignment
+	beq	$0, $zerolength # U  .. .. ..	:  U L U L
+
+	addq	$0, $4, $1	# .. .. .. E	: bias counter
+	and	$1, 7, $2	# .. .. E  ..	: number of misaligned bytes in tail
+# Note - we never actually use $2, so this is a moot computation
+# and we can rewrite this later...
+	srl	$1, 3, $1	# .. E  .. ..	: number of quadwords to clear
+	beq	$4, $headalign	# U  .. .. ..	: U L U L
+
+/*
+ * Head is not aligned.  Write (8 - $4) bytes to head of destination
+ * This means $16 is known to be misaligned
+ */
+	EX( ldq_u $5, 0($16) )	# .. .. .. L	: load dst word to mask back in
+	beq	$1, $onebyte	# .. .. U  ..	: sub-word store?
+	mskql	$5, $16, $5	# .. U  .. ..	: take care of misaligned head
+	addq	$16, 8, $16	# E  .. .. .. 	: L U U L
+
+	EX( stq_u $5, -8($16) )	# .. .. .. L	:
+	subq	$1, 1, $1	# .. .. E  ..	:
+	addq	$0, $4, $0	# .. E  .. ..	: bytes left -= 8 - misalignment
+	subq	$0, 8, $0	# E  .. .. ..	: U L U L
+
+	.align	4
+/*
+ * (The .align directive ought to be a moot point)
+ * values upon initial entry to the loop
+ * $1 is number of quadwords to clear (zero is a valid value)
+ * $2 is number of trailing bytes (0..7) ($2 never used...)
+ * $16 is known to be aligned 0mod8
+ */
+$headalign:
+	subq	$1, 16, $4	# .. .. .. E	: If < 16, we can not use the huge loop
+	and	$16, 0x3f, $2	# .. .. E  ..	: Forward work for huge loop
+	subq	$2, 0x40, $3	# .. E  .. ..	: bias counter (huge loop)
+	blt	$4, $trailquad	# U  .. .. ..	: U L U L
+
+/*
+ * We know that we're going to do at least 16 quads, which means we are
+ * going to be able to use the large block clear loop at least once.
+ * Figure out how many quads we need to clear before we are 0mod64 aligned
+ * so we can use the wh64 instruction.
+ */
+
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	beq	$3, $bigalign	# U  .. .. ..	: U L U L : Aligned 0mod64
+
+$alignmod64:
+	EX( stq_u $31, 0($16) )	# .. .. .. L
+	addq	$3, 8, $3	# .. .. E  ..
+	subq	$0, 8, $0	# .. E  .. ..
+	nop			# E  .. .. ..	: U L U L
+
+	nop			# .. .. .. E
+	subq	$1, 1, $1	# .. .. E  ..
+	addq	$16, 8, $16	# .. E  .. ..
+	blt	$3, $alignmod64	# U  .. .. ..	: U L U L
+
+$bigalign:
+/*
+ * $0 is the number of bytes left
+ * $1 is the number of quads left
+ * $16 is aligned 0mod64
+ * we know that we'll be taking a minimum of one trip through
+ * CWG Section 3.7.6: do not expect a sustained store rate of > 1/cycle
+ * We are _not_ going to update $0 after every single store.  That
+ * would be silly, because there will be cross-cluster dependencies
+ * no matter how the code is scheduled.  By doing it in slightly
+ * staggered fashion, we can still do this loop in 5 fetches
+ * The worse case will be doing two extra quads in some future execution,
+ * in the event of an interrupted clear.
+ * Assumes the wh64 needs to be for 2 trips through the loop in the future
+ * The wh64 is issued on for the starting destination address for trip +2
+ * through the loop, and if there are less than two trips left, the target
+ * address will be for the current trip.
+ */
+	nop			# E :
+	nop			# E :
+	nop			# E :
+	bis	$16,$16,$3	# E : U L U L : Initial wh64 address is dest
+	/* This might actually help for the current trip... */
+
+$do_wh64:
+	wh64	($3)		# .. .. .. L1	: memory subsystem hint
+	subq	$1, 16, $4	# .. .. E  ..	: Forward calculation - repeat the loop?
+	EX( stq_u $31, 0($16) )	# .. L  .. ..
+	subq	$0, 8, $0	# E  .. .. ..	: U L U L
+
+	addq	$16, 128, $3	# E : Target address of wh64
+	EX( stq_u $31, 8($16) )	# L :
+	EX( stq_u $31, 16($16) )	# L :
+	subq	$0, 16, $0	# E : U L L U
+
+	nop			# E :
+	EX( stq_u $31, 24($16) )	# L :
+	EX( stq_u $31, 32($16) )	# L :
+	subq	$0, 168, $5	# E : U L L U : two trips through the loop left?
+	/* 168 = 192 - 24, since we've already completed some stores */
+
+	subq	$0, 16, $0	# E :
+	EX( stq_u $31, 40($16) )	# L :
+	EX( stq_u $31, 48($16) )	# L :
+	cmovlt	$5, $16, $3	# E : U L L U : Latency 2, extra mapping cycle
+
+	subq	$1, 8, $1	# E :
+	subq	$0, 16, $0	# E :
+	EX( stq_u $31, 56($16) )	# L :
+	nop			# E : U L U L
+
+	nop			# E :
+	subq	$0, 8, $0	# E :
+	addq	$16, 64, $16	# E :
+	bge	$4, $do_wh64	# U : U L U L
+
+$trailquad:
+	# zero to 16 quadwords left to store, plus any trailing bytes
+	# $1 is the number of quadwords left to go.
+	# 
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	beq	$1, $trailbytes	# U  .. .. ..	: U L U L : Only 0..7 bytes to go
+
+$onequad:
+	EX( stq_u $31, 0($16) )	# .. .. .. L
+	subq	$1, 1, $1	# .. .. E  ..
+	subq	$0, 8, $0	# .. E  .. ..
+	nop			# E  .. .. ..	: U L U L
+
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	addq	$16, 8, $16	# .. E  .. ..
+	bgt	$1, $onequad	# U  .. .. ..	: U L U L
+
+	# We have an unknown number of bytes left to go.
+$trailbytes:
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	beq	$0, $zerolength	# U  .. .. ..	: U L U L
+
+	# $0 contains the number of bytes left to copy (0..31)
+	# so we will use $0 as the loop counter
+	# We know for a fact that $0 > 0 zero due to previous context
+$onebyte:
+	EX( stb $31, 0($16) )	# .. .. .. L
+	subq	$0, 1, $0	# .. .. E  ..	:
+	addq	$16, 1, $16	# .. E  .. ..	:
+	bgt	$0, $onebyte	# U  .. .. ..	: U L U L
+
+$zerolength:
+$exception:			# Destination for exception recovery(?)
+	nop			# .. .. .. E	:
+	nop			# .. .. E  ..	:
+	nop			# .. E  .. ..	:
+	ret	$31, ($26), 1	# L0 .. .. ..	: L U L U
+	.end __clear_user
+	EXPORT_SYMBOL(__clear_user)
diff --git a/arch/alpha/lib/ev6-copy_page.S b/arch/alpha/lib/ev6-copy_page.S
new file mode 100644
index 000000000..fd7212c8d
--- /dev/null
+++ b/arch/alpha/lib/ev6-copy_page.S
@@ -0,0 +1,205 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-copy_page.S
+ *
+ * Copy an entire page.
+ */
+
+/* The following comparison of this routine vs the normal copy_page.S
+   was written by an unnamed ev6 hardware designer and forwarded to me
+   via Steven Hobbs <hobbs@steven.zko.dec.com>.
+ 
+   First Problem: STQ overflows.
+   -----------------------------
+
+	It would be nice if EV6 handled every resource overflow efficiently,
+	but for some it doesn't.  Including store queue overflows.  It causes
+	a trap and a restart of the pipe.
+
+	To get around this we sometimes use (to borrow a term from a VSSAD
+	researcher) "aeration".  The idea is to slow the rate at which the
+	processor receives valid instructions by inserting nops in the fetch
+	path.  In doing so, you can prevent the overflow and actually make
+	the code run faster.  You can, of course, take advantage of the fact
+	that the processor can fetch at most 4 aligned instructions per cycle.
+
+	I inserted enough nops to force it to take 10 cycles to fetch the
+	loop code.  In theory, EV6 should be able to execute this loop in
+	9 cycles but I was not able to get it to run that fast -- the initial
+	conditions were such that I could not reach this optimum rate on
+	(chaotic) EV6.  I wrote the code such that everything would issue
+	in order. 
+
+   Second Problem: Dcache index matches.
+   -------------------------------------
+
+	If you are going to use this routine on random aligned pages, there
+	is a 25% chance that the pages will be at the same dcache indices.
+	This results in many nasty memory traps without care.
+
+	The solution is to schedule the prefetches to avoid the memory
+	conflicts.  I schedule the wh64 prefetches farther ahead of the
+	read prefetches to avoid this problem.
+
+   Third Problem: Needs more prefetching.
+   --------------------------------------
+
+	In order to improve the code I added deeper prefetching to take the
+	most advantage of EV6's bandwidth.
+
+	I also prefetched the read stream. Note that adding the read prefetch
+	forced me to add another cycle to the inner-most kernel - up to 11
+	from the original 8 cycles per iteration.  We could improve performance
+	further by unrolling the loop and doing multiple prefetches per cycle.
+
+   I think that the code below will be very robust and fast code for the
+   purposes of copying aligned pages.  It is slower when both source and
+   destination pages are in the dcache, but it is my guess that this is
+   less important than the dcache miss case.  */
+
+#include <asm/export.h>
+	.text
+	.align 4
+	.global copy_page
+	.ent copy_page
+copy_page:
+	.prologue 0
+
+	/* Prefetch 5 read cachelines; write-hint 10 cache lines.  */
+	wh64	($16)
+	ldl	$31,0($17)
+	ldl	$31,64($17)
+	lda	$1,1*64($16)
+
+	wh64	($1)
+	ldl	$31,128($17)
+	ldl	$31,192($17)
+	lda	$1,2*64($16)
+
+	wh64	($1)
+	ldl	$31,256($17)
+	lda	$18,118
+	lda	$1,3*64($16)
+
+	wh64	($1)
+	nop
+	lda	$1,4*64($16)
+	lda	$2,5*64($16)
+
+	wh64	($1)
+	wh64	($2)
+	lda	$1,6*64($16)
+	lda	$2,7*64($16)
+
+	wh64	($1)
+	wh64	($2)
+	lda	$1,8*64($16)
+	lda	$2,9*64($16)
+
+	wh64	($1)
+	wh64	($2)
+	lda	$19,10*64($16)
+	nop
+
+	/* Main prefetching/write-hinting loop.  */
+1:	ldq	$0,0($17)
+	ldq	$1,8($17)
+	unop
+	unop
+
+	unop
+	unop
+	ldq	$2,16($17)
+	ldq	$3,24($17)
+
+	ldq	$4,32($17)
+	ldq	$5,40($17)
+	unop
+	unop
+
+	unop
+	unop
+	ldq	$6,48($17)
+	ldq	$7,56($17)
+
+	ldl	$31,320($17)
+	unop
+	unop
+	unop
+
+	/* This gives the extra cycle of aeration above the minimum.  */
+	unop			
+	unop
+	unop
+	unop
+
+	wh64	($19)
+	unop
+	unop
+	unop
+
+	stq	$0,0($16)
+	subq	$18,1,$18
+	stq	$1,8($16)
+	unop
+
+	unop
+	stq	$2,16($16)
+	addq	$17,64,$17
+	stq	$3,24($16)
+
+	stq	$4,32($16)
+	stq	$5,40($16)
+	addq	$19,64,$19
+	unop
+
+	stq	$6,48($16)
+	stq	$7,56($16)
+	addq	$16,64,$16
+	bne	$18, 1b
+
+	/* Prefetch the final 5 cache lines of the read stream.  */
+	lda	$18,10
+	ldl	$31,320($17)
+	ldl	$31,384($17)
+	ldl	$31,448($17)
+
+	ldl	$31,512($17)
+	ldl	$31,576($17)
+	nop
+	nop
+
+	/* Non-prefetching, non-write-hinting cleanup loop for the
+	   final 10 cache lines.  */
+2:	ldq	$0,0($17)
+	ldq	$1,8($17)
+	ldq	$2,16($17)
+	ldq	$3,24($17)
+
+	ldq	$4,32($17)
+	ldq	$5,40($17)
+	ldq	$6,48($17)
+	ldq	$7,56($17)
+
+	stq	$0,0($16)
+	subq	$18,1,$18
+	stq	$1,8($16)
+	addq	$17,64,$17
+
+	stq	$2,16($16)
+	stq	$3,24($16)
+	stq	$4,32($16)
+	stq	$5,40($16)
+
+	stq	$6,48($16)
+	stq	$7,56($16)
+	addq	$16,64,$16
+	bne	$18, 2b
+
+	ret
+	nop
+	unop
+	nop
+
+	.end copy_page
+	EXPORT_SYMBOL(copy_page)
diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S
new file mode 100644
index 000000000..f3e433754
--- /dev/null
+++ b/arch/alpha/lib/ev6-copy_user.S
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-copy_user.S
+ *
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Copy to/from user space, handling exceptions as we go..  This
+ * isn't exactly pretty.
+ *
+ * This is essentially the same as "memcpy()", but with a few twists.
+ * Notably, we have to make sure that $0 is always up-to-date and
+ * contains the right "bytes left to copy" value (and that it is updated
+ * only _after_ a successful copy). There is also some rather minor
+ * exception setup stuff..
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ */
+
+#include <asm/export.h>
+/* Allow an exception for an insn; exit if we get one.  */
+#define EXI(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exitin-99b($31);	\
+	.previous
+
+#define EXO(x,y...)			\
+	99: x,##y;			\
+	.section __ex_table,"a";	\
+	.long 99b - .;			\
+	lda $31, $exitout-99b($31);	\
+	.previous
+
+	.set noat
+	.align 4
+	.globl __copy_user
+	.ent __copy_user
+				# Pipeline info: Slotting & Comments
+__copy_user:
+	.prologue 0
+	mov $18, $0		# .. .. .. E
+	subq $18, 32, $1	# .. .. E. ..	: Is this going to be a small copy?
+	nop			# .. E  .. ..
+	beq $18, $zerolength	# U  .. .. ..	: U L U L
+
+	and $16,7,$3		# .. .. .. E	: is leading dest misalignment
+	ble $1, $onebyteloop	# .. .. U  ..	: 1st branch : small amount of data
+	beq $3, $destaligned	# .. U  .. ..	: 2nd (one cycle fetcher stall)
+	subq $3, 8, $3		# E  .. .. ..	: L U U L : trip counter
+/*
+ * The fetcher stall also hides the 1 cycle cross-cluster stall for $3 (L --> U)
+ * This loop aligns the destination a byte at a time
+ * We know we have at least one trip through this loop
+ */
+$aligndest:
+	EXI( ldbu $1,0($17) )	# .. .. .. L	: Keep loads separate from stores
+	addq $16,1,$16		# .. .. E  ..	: Section 3.8 in the CWG
+	addq $3,1,$3		# .. E  .. ..	:
+	nop			# E  .. .. ..	: U L U L
+
+/*
+ * the -1 is to compensate for the inc($16) done in a previous quadpack
+ * which allows us zero dependencies within either quadpack in the loop
+ */
+	EXO( stb $1,-1($16) )	# .. .. .. L	:
+	addq $17,1,$17		# .. .. E  ..	: Section 3.8 in the CWG
+	subq $0,1,$0		# .. E  .. ..	:
+	bne $3, $aligndest	# U  .. .. ..	: U L U L
+
+/*
+ * If we fell through into here, we have a minimum of 33 - 7 bytes
+ * If we arrived via branch, we have a minimum of 32 bytes
+ */
+$destaligned:
+	and $17,7,$1		# .. .. .. E	: Check _current_ source alignment
+	bic $0,7,$4		# .. .. E  ..	: number bytes as a quadword loop
+	EXI( ldq_u $3,0($17) )	# .. L  .. ..	: Forward fetch for fallthrough code
+	beq $1,$quadaligned	# U  .. .. ..	: U L U L
+
+/*
+ * In the worst case, we've just executed an ldq_u here from 0($17)
+ * and we'll repeat it once if we take the branch
+ */
+
+/* Misaligned quadword loop - not unrolled.  Leave it that way. */
+$misquad:
+	EXI( ldq_u $2,8($17) )	# .. .. .. L	:
+	subq $4,8,$4		# .. .. E  ..	:
+	extql $3,$17,$3		# .. U  .. ..	:
+	extqh $2,$17,$1		# U  .. .. ..	: U U L L
+
+	bis $3,$1,$1		# .. .. .. E	:
+	EXO( stq $1,0($16) )	# .. .. L  ..	:
+	addq $17,8,$17		# .. E  .. ..	:
+	subq $0,8,$0		# E  .. .. ..	: U L L U
+
+	addq $16,8,$16		# .. .. .. E	:
+	bis $2,$2,$3		# .. .. E  ..	:
+	nop			# .. E  .. ..	:
+	bne $4,$misquad		# U  .. .. ..	: U L U L
+
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	beq $0,$zerolength	# U  .. .. ..	: U L U L
+
+/* We know we have at least one trip through the byte loop */
+	EXI ( ldbu $2,0($17) )	# .. .. .. L	: No loads in the same quad
+	addq $16,1,$16		# .. .. E  ..	: as the store (Section 3.8 in CWG)
+	nop			# .. E  .. ..	:
+	br $31, $dirtyentry	# L0 .. .. ..	: L U U L
+/* Do the trailing byte loop load, then hop into the store part of the loop */
+
+/*
+ * A minimum of (33 - 7) bytes to do a quad at a time.
+ * Based upon the usage context, it's worth the effort to unroll this loop
+ * $0 - number of bytes to be moved
+ * $4 - number of bytes to move as quadwords
+ * $16 is current destination address
+ * $17 is current source address
+ */
+$quadaligned:
+	subq	$4, 32, $2	# .. .. .. E	: do not unroll for small stuff
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	blt	$2, $onequad	# U  .. .. ..	: U L U L
+
+/*
+ * There is a significant assumption here that the source and destination
+ * addresses differ by more than 32 bytes.  In this particular case, a
+ * sparsity of registers further bounds this to be a minimum of 8 bytes.
+ * But if this isn't met, then the output result will be incorrect.
+ * Furthermore, due to a lack of available registers, we really can't
+ * unroll this to be an 8x loop (which would enable us to use the wh64
+ * instruction memory hint instruction).
+ */
+$unroll4:
+	EXI( ldq $1,0($17) )	# .. .. .. L
+	EXI( ldq $2,8($17) )	# .. .. L  ..
+	subq	$4,32,$4	# .. E  .. ..
+	nop			# E  .. .. ..	: U U L L
+
+	addq	$17,16,$17	# .. .. .. E
+	EXO( stq $1,0($16) )	# .. .. L  ..
+	EXO( stq $2,8($16) )	# .. L  .. ..
+	subq	$0,16,$0	# E  .. .. ..	: U L L U
+
+	addq	$16,16,$16	# .. .. .. E
+	EXI( ldq $1,0($17) )	# .. .. L  ..
+	EXI( ldq $2,8($17) )	# .. L  .. ..
+	subq	$4, 32, $3	# E  .. .. ..	: U U L L : is there enough for another trip?
+
+	EXO( stq $1,0($16) )	# .. .. .. L
+	EXO( stq $2,8($16) )	# .. .. L  ..
+	subq	$0,16,$0	# .. E  .. ..
+	addq	$17,16,$17	# E  .. .. ..	: U L L U
+
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	addq	$16,16,$16	# .. E  .. ..
+	bgt	$3,$unroll4	# U  .. .. ..	: U L U L
+
+	nop
+	nop
+	nop
+	beq	$4, $noquads
+
+$onequad:
+	EXI( ldq $1,0($17) )
+	subq	$4,8,$4
+	addq	$17,8,$17
+	nop
+
+	EXO( stq $1,0($16) )
+	subq	$0,8,$0
+	addq	$16,8,$16
+	bne	$4,$onequad
+
+$noquads:
+	nop
+	nop
+	nop
+	beq $0,$zerolength
+
+/*
+ * For small copies (or the tail of a larger copy), do a very simple byte loop.
+ * There's no point in doing a lot of complex alignment calculations to try to
+ * to quadword stuff for a small amount of data.
+ *	$0 - remaining number of bytes left to copy
+ *	$16 - current dest addr
+ *	$17 - current source addr
+ */
+
+$onebyteloop:
+	EXI ( ldbu $2,0($17) )	# .. .. .. L	: No loads in the same quad
+	addq $16,1,$16		# .. .. E  ..	: as the store (Section 3.8 in CWG)
+	nop			# .. E  .. ..	:
+	nop			# E  .. .. ..	: U L U L
+
+$dirtyentry:
+/*
+ * the -1 is to compensate for the inc($16) done in a previous quadpack
+ * which allows us zero dependencies within either quadpack in the loop
+ */
+	EXO ( stb $2,-1($16) )	# .. .. .. L	:
+	addq $17,1,$17		# .. .. E  ..	: quadpack as the load
+	subq $0,1,$0		# .. E  .. ..	: change count _after_ copy
+	bgt $0,$onebyteloop	# U  .. .. ..	: U L U L
+
+$zerolength:
+$exitin:
+$exitout:			# Destination for exception recovery(?)
+	nop			# .. .. .. E
+	nop			# .. .. E  ..
+	nop			# .. E  .. ..
+	ret $31,($26),1		# L0 .. .. ..	: L U L U
+
+	.end __copy_user
+	EXPORT_SYMBOL(__copy_user)
diff --git a/arch/alpha/lib/ev6-csum_ipv6_magic.S b/arch/alpha/lib/ev6-csum_ipv6_magic.S
new file mode 100644
index 000000000..9a73f9070
--- /dev/null
+++ b/arch/alpha/lib/ev6-csum_ipv6_magic.S
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-csum_ipv6_magic.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * unsigned short csum_ipv6_magic(struct in6_addr *saddr,
+ *                                struct in6_addr *daddr,
+ *                                __u32 len,
+ *                                unsigned short proto,
+ *                                unsigned int csum);
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ * Determining actual stalls (other than slotting) doesn't appear to be easy to do.
+ *
+ * unsigned short csum_ipv6_magic(struct in6_addr *saddr,
+ *                                struct in6_addr *daddr,
+ *                                __u32 len,
+ *                                unsigned short proto,
+ *                                unsigned int csum);
+ *
+ * Swap <proto> (takes form 0xaabb)
+ * Then shift it left by 48, so result is:
+ *	0xbbaa0000 00000000
+ * Then turn it back into a sign extended 32-bit item
+ *	0xbbaa0000
+ *
+ * Swap <len> (an unsigned int) using Mike Burrows' 7-instruction sequence
+ * (we can't hide the 3-cycle latency of the unpkbw in the 6-instruction sequence)
+ * Assume input takes form 0xAABBCCDD
+ *
+ * Finally, original 'folding' approach is to split the long into 4 unsigned shorts
+ * add 4 ushorts, resulting in ushort/carry
+ * add carry bits + ushort --> ushort
+ * add carry bits + ushort --> ushort (in case the carry results in an overflow)
+ * Truncate to a ushort.  (took 13 instructions)
+ * From doing some testing, using the approach in checksum.c:from64to16()
+ * results in the same outcome:
+ * split into 2 uints, add those, generating a ulong
+ * add the 3 low ushorts together, generating a uint
+ * a final add of the 2 lower ushorts
+ * truncating the result.
+ *
+ * Misalignment handling added by Ivan Kokshaysky <ink@jurassic.park.msu.ru>
+ * The cost is 16 instructions (~8 cycles), including two extra loads which
+ * may cause additional delay in rare cases (load-load replay traps).
+ */
+
+#include <asm/export.h>
+	.globl csum_ipv6_magic
+	.align 4
+	.ent csum_ipv6_magic
+	.frame $30,0,$26,0
+csum_ipv6_magic:
+	.prologue 0
+
+	ldq_u	$0,0($16)	# L : Latency: 3
+	inslh	$18,7,$4	# U : 0000000000AABBCC
+	ldq_u	$1,8($16)	# L : Latency: 3
+	sll	$19,8,$7	# U : U L U L : 0x00000000 00aabb00
+
+	and	$16,7,$6	# E : src misalignment
+	ldq_u	$5,15($16)	# L : Latency: 3
+	zapnot	$20,15,$20	# U : zero extend incoming csum
+	ldq_u	$2,0($17)	# L : U L U L : Latency: 3
+
+	extql	$0,$6,$0	# U :
+	extqh	$1,$6,$22	# U :
+	ldq_u	$3,8($17)	# L : Latency: 3
+	sll	$19,24,$19	# U : U U L U : 0x000000aa bb000000
+
+	cmoveq	$6,$31,$22	# E : src aligned?
+	ldq_u	$23,15($17)	# L : Latency: 3
+	inswl	$18,3,$18	# U : 000000CCDD000000
+	addl	$19,$7,$19	# E : U L U L : <sign bits>bbaabb00
+
+	or	$0,$22,$0	# E : 1st src word complete
+	extql	$1,$6,$1	# U :
+	or	$18,$4,$18	# E : 000000CCDDAABBCC
+	extqh	$5,$6,$5	# U : L U L U
+
+	and	$17,7,$6	# E : dst misalignment
+	extql	$2,$6,$2	# U :
+	or	$1,$5,$1	# E : 2nd src word complete
+	extqh	$3,$6,$22	# U : L U L U :
+
+	cmoveq	$6,$31,$22	# E : dst aligned?
+	extql	$3,$6,$3	# U :
+	addq	$20,$0,$20	# E : begin summing the words
+	extqh	$23,$6,$23	# U : L U L U :
+
+	srl	$18,16,$4	# U : 0000000000CCDDAA
+	or	$2,$22,$2	# E : 1st dst word complete
+	zap	$19,0x3,$19	# U : <sign bits>bbaa0000
+	or	$3,$23,$3	# E : U L U L : 2nd dst word complete
+
+	cmpult	$20,$0,$0	# E :
+	addq	$20,$1,$20	# E :
+	zapnot	$18,0xa,$18	# U : 00000000DD00BB00
+	zap	$4,0xa,$4	# U : U U L L : 0000000000CC00AA
+
+	or	$18,$4,$18	# E : 00000000DDCCBBAA
+	nop			# E :
+	cmpult	$20,$1,$1	# E :
+	addq	$20,$2,$20	# E : U L U L
+
+	cmpult	$20,$2,$2	# E :
+	addq	$20,$3,$20	# E :
+	cmpult	$20,$3,$3	# E : (1 cycle stall on $20)
+	addq	$20,$18,$20	# E : U L U L (1 cycle stall on $20)
+
+	cmpult	$20,$18,$18	# E :
+	addq	$20,$19,$20	# E : (1 cycle stall on $20)
+	addq	$0,$1,$0	# E : merge the carries back into the csum
+	addq	$2,$3,$2	# E :
+
+	cmpult	$20,$19,$19	# E :
+	addq	$18,$19,$18	# E : (1 cycle stall on $19)
+	addq	$0,$2,$0	# E :
+	addq	$20,$18,$20	# E : U L U L :
+		/* (1 cycle stall on $18, 2 cycles on $20) */
+
+	addq	$0,$20,$0	# E :
+	zapnot	$0,15,$1	# U : Start folding output (1 cycle stall on $0)
+	nop			# E :
+	srl	$0,32,$0	# U : U L U L : (1 cycle stall on $0)
+
+	addq	$1,$0,$1	# E : Finished generating ulong
+	extwl	$1,2,$2		# U : ushort[1] (1 cycle stall on $1)
+	zapnot	$1,3,$0		# U : ushort[0] (1 cycle stall on $1)
+	extwl	$1,4,$1		# U : ushort[2] (1 cycle stall on $1)
+
+	addq	$0,$2,$0	# E
+	addq	$0,$1,$3	# E : Finished generating uint
+		/* (1 cycle stall on $0) */
+	extwl	$3,2,$1		# U : ushort[1] (1 cycle stall on $3)
+	nop			# E : L U L U
+
+	addq	$1,$3,$0	# E : Final carry
+	not	$0,$4		# E : complement (1 cycle stall on $0)
+	zapnot	$4,3,$0		# U : clear upper garbage bits
+		/* (1 cycle stall on $4) */
+	ret			# L0 : L U L U
+
+	.end csum_ipv6_magic
+	EXPORT_SYMBOL(csum_ipv6_magic)
diff --git a/arch/alpha/lib/ev6-divide.S b/arch/alpha/lib/ev6-divide.S
new file mode 100644
index 000000000..137ff1a07
--- /dev/null
+++ b/arch/alpha/lib/ev6-divide.S
@@ -0,0 +1,263 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-divide.S
+ *
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Alpha division..
+ */
+
+/*
+ * The alpha chip doesn't provide hardware division, so we have to do it
+ * by hand.  The compiler expects the functions
+ *
+ *	__divqu: 64-bit unsigned long divide
+ *	__remqu: 64-bit unsigned long remainder
+ *	__divqs/__remqs: signed 64-bit
+ *	__divlu/__remlu: unsigned 32-bit
+ *	__divls/__remls: signed 32-bit
+ *
+ * These are not normal C functions: instead of the normal
+ * calling sequence, these expect their arguments in registers
+ * $24 and $25, and return the result in $27. Register $28 may
+ * be clobbered (assembly temporary), anything else must be saved. 
+ *
+ * In short: painful.
+ *
+ * This is a rather simple bit-at-a-time algorithm: it's very good
+ * at dividing random 64-bit numbers, but the more usual case where
+ * the divisor is small is handled better by the DEC algorithm
+ * using lookup tables. This uses much less memory, though, and is
+ * nicer on the cache.. Besides, I don't know the copyright status
+ * of the DEC code.
+ */
+
+/*
+ * My temporaries:
+ *	$0 - current bit
+ *	$1 - shifted divisor
+ *	$2 - modulus/quotient
+ *
+ *	$23 - return address
+ *	$24 - dividend
+ *	$25 - divisor
+ *
+ *	$27 - quotient/modulus
+ *	$28 - compare status
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+
+#include <asm/export.h>
+#define halt .long 0
+
+/*
+ * Select function type and registers
+ */
+#define mask	$0
+#define divisor	$1
+#define compare $28
+#define tmp1	$3
+#define tmp2	$4
+
+#ifdef DIV
+#define DIV_ONLY(x,y...) x,##y
+#define MOD_ONLY(x,y...)
+#define func(x) __div##x
+#define modulus $2
+#define quotient $27
+#define GETSIGN(x) xor $24,$25,x
+#define STACK 48
+#else
+#define DIV_ONLY(x,y...)
+#define MOD_ONLY(x,y...) x,##y
+#define func(x) __rem##x
+#define modulus $27
+#define quotient $2
+#define GETSIGN(x) bis $24,$24,x
+#define STACK 32
+#endif
+
+/*
+ * For 32-bit operations, we need to extend to 64-bit
+ */
+#ifdef INTSIZE
+#define ufunction func(lu)
+#define sfunction func(l)
+#define LONGIFY(x) zapnot x,15,x
+#define SLONGIFY(x) addl x,0,x
+#else
+#define ufunction func(qu)
+#define sfunction func(q)
+#define LONGIFY(x)
+#define SLONGIFY(x)
+#endif
+
+.set noat
+.align	4
+.globl	ufunction
+.ent	ufunction
+ufunction:
+	subq	$30,STACK,$30		# E :
+	.frame	$30,STACK,$23
+	.prologue 0
+
+7:	stq	$1, 0($30)		# L :
+	bis	$25,$25,divisor		# E :
+	stq	$2, 8($30)		# L : L U L U
+
+	bis	$24,$24,modulus		# E :
+	stq	$0,16($30)		# L :
+	bis	$31,$31,quotient	# E :
+	LONGIFY(divisor)		# E : U L L U
+
+	stq	tmp1,24($30)		# L :
+	LONGIFY(modulus)		# E :
+	bis	$31,1,mask		# E :
+	DIV_ONLY(stq tmp2,32($30))	# L : L U U L
+
+	beq	divisor, 9f			/* div by zero */
+	/*
+	 * In spite of the DIV_ONLY being either a non-instruction
+	 * or an actual stq, the addition of the .align directive
+	 * below ensures that label 1 is going to be nicely aligned
+	 */
+
+	.align	4
+#ifdef INTSIZE
+	/*
+	 * shift divisor left, using 3-bit shifts for
+	 * 32-bit divides as we can't overflow. Three-bit
+	 * shifts will result in looping three times less
+	 * here, but can result in two loops more later.
+	 * Thus using a large shift isn't worth it (and
+	 * s8add pairs better than a sll..)
+	 */
+1:	cmpult	divisor,modulus,compare	# E :
+	s8addq	divisor,$31,divisor	# E :
+	s8addq	mask,$31,mask		# E :
+	bne	compare,1b		# U : U L U L
+#else
+1:	cmpult	divisor,modulus,compare	# E :
+	nop				# E :
+	nop				# E :
+	blt     divisor, 2f		# U : U L U L
+
+	addq	divisor,divisor,divisor	# E :
+	addq	mask,mask,mask		# E :
+	unop				# E :
+	bne	compare,1b		# U : U L U L
+#endif
+
+	/* ok, start to go right again.. */
+2:
+	/*
+	 * Keep things nicely bundled... use a nop instead of not
+	 * having an instruction for DIV_ONLY
+	 */
+#ifdef DIV
+	DIV_ONLY(addq quotient,mask,tmp2) # E :
+#else
+	nop				# E :
+#endif
+	srl	mask,1,mask		# U :
+	cmpule	divisor,modulus,compare	# E :
+	subq	modulus,divisor,tmp1	# E :
+
+#ifdef DIV
+	DIV_ONLY(cmovne compare,tmp2,quotient)	# E : Latency 2, extra map slot
+	nop				# E : as part of the cmovne
+	srl	divisor,1,divisor	# U :
+	nop				# E : L U L U
+
+	nop				# E :
+	cmovne	compare,tmp1,modulus	# E : Latency 2, extra map slot
+	nop				# E : as part of the cmovne
+	bne	mask,2b			# U : U L U L
+#else
+	srl	divisor,1,divisor	# U :
+	cmovne	compare,tmp1,modulus	# E : Latency 2, extra map slot
+	nop				# E : as part of the cmovne
+	bne	mask,2b			# U : U L L U
+#endif
+
+9:	ldq	$1, 0($30)		# L :
+	ldq	$2, 8($30)		# L :
+	nop				# E :
+	nop				# E : U U L L
+
+	ldq	$0,16($30)		# L :
+	ldq	tmp1,24($30)		# L :
+	nop				# E :
+	nop				# E :
+
+#ifdef DIV
+	DIV_ONLY(ldq tmp2,32($30))	# L :
+#else
+	nop				# E :
+#endif
+	addq	$30,STACK,$30		# E :
+	ret	$31,($23),1		# L0 : L U U L
+	.end	ufunction
+EXPORT_SYMBOL(ufunction)
+
+/*
+ * Uhh.. Ugly signed division. I'd rather not have it at all, but
+ * it's needed in some circumstances. There are different ways to
+ * handle this, really. This does:
+ * 	-a / b = a / -b = -(a / b)
+ *	-a % b = -(a % b)
+ *	a % -b = a % b
+ * which is probably not the best solution, but at least should
+ * have the property that (x/y)*y + (x%y) = x.
+ */
+.align 4
+.globl	sfunction
+.ent	sfunction
+sfunction:
+	subq	$30,STACK,$30		# E :
+	.frame	$30,STACK,$23
+	.prologue 0
+	bis	$24,$25,$28		# E :
+	SLONGIFY($28)			# E :
+	bge	$28,7b			# U :
+
+	stq	$24,0($30)		# L :
+	subq	$31,$24,$28		# E :
+	stq	$25,8($30)		# L :
+	nop				# E : U L U L
+
+	cmovlt	$24,$28,$24	/* abs($24) */ # E : Latency 2, extra map slot
+	nop				# E : as part of the cmov
+	stq	$23,16($30)		# L :
+	subq	$31,$25,$28		# E : U L U L
+
+	stq	tmp1,24($30)		# L :
+	cmovlt	$25,$28,$25	/* abs($25) */ # E : Latency 2, extra map slot
+	nop				# E :
+	bsr	$23,ufunction		# L0: L U L U
+
+	ldq	$24,0($30)		# L :
+	ldq	$25,8($30)		# L :
+	GETSIGN($28)			# E :
+	subq	$31,$27,tmp1		# E : U U L L
+
+	SLONGIFY($28)			# E :
+	ldq	$23,16($30)		# L :
+	cmovlt	$28,tmp1,$27		# E : Latency 2, extra map slot
+	nop				# E : U L L U : as part of the cmov
+
+	ldq	tmp1,24($30)		# L :
+	nop				# E : as part of the cmov
+	addq	$30,STACK,$30		# E :
+	ret	$31,($23),1		# L0 : L U U L
+	.end	sfunction
+EXPORT_SYMBOL(sfunction)
diff --git a/arch/alpha/lib/ev6-memchr.S b/arch/alpha/lib/ev6-memchr.S
new file mode 100644
index 000000000..56bf9e14e
--- /dev/null
+++ b/arch/alpha/lib/ev6-memchr.S
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-memchr.S
+ *
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Finds characters in a memory area.  Optimized for the Alpha:
+ *
+ *    - memory accessed as aligned quadwords only
+ *    - uses cmpbge to compare 8 bytes in parallel
+ *    - does binary search to find 0 byte in last
+ *      quadword (HAKMEM needed 12 instructions to
+ *      do this instead of the 9 instructions that
+ *      binary search needs).
+ *
+ * For correctness consider that:
+ *
+ *    - only minimum number of quadwords may be accessed
+ *    - the third argument is an unsigned long
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+#include <asm/export.h>
+        .set noreorder
+        .set noat
+
+	.align	4
+	.globl memchr
+	.ent memchr
+memchr:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	# Hack -- if someone passes in (size_t)-1, hoping to just
+	# search til the end of the address space, we will overflow
+	# below when we find the address of the last byte.  Given
+	# that we will never have a 56-bit address space, cropping
+	# the length is the easiest way to avoid trouble.
+	zap	$18, 0x80, $5	# U : Bound length
+	beq	$18, $not_found	# U :
+        ldq_u   $1, 0($16)	# L : load first quadword Latency=3
+	and	$17, 0xff, $17	# E : L L U U : 00000000000000ch
+
+	insbl	$17, 1, $2	# U : 000000000000ch00
+	cmpult	$18, 9, $4	# E : small (< 1 quad) string?
+	or	$2, $17, $17	# E : 000000000000chch
+        lda     $3, -1($31)	# E : U L L U
+
+	sll	$17, 16, $2	# U : 00000000chch0000
+	addq	$16, $5, $5	# E : Max search address
+	or	$2, $17, $17	# E : 00000000chchchch
+	sll	$17, 32, $2	# U : U L L U : chchchch00000000
+
+	or	$2, $17, $17	# E : chchchchchchchch
+	extql	$1, $16, $7	# U : $7 is upper bits
+	beq	$4, $first_quad	# U :
+	ldq_u	$6, -1($5)	# L : L U U L : eight or less bytes to search Latency=3
+
+	extqh	$6, $16, $6	# U : 2 cycle stall for $6
+	mov	$16, $0		# E :
+	nop			# E :
+	or	$7, $6, $1	# E : L U L U $1 = quadword starting at $16
+
+	# Deal with the case where at most 8 bytes remain to be searched
+	# in $1.  E.g.:
+	#	$18 = 6
+	#	$1 = ????c6c5c4c3c2c1
+$last_quad:
+	negq	$18, $6		# E :
+        xor	$17, $1, $1	# E :
+	srl	$3, $6, $6	# U : $6 = mask of $18 bits set
+        cmpbge  $31, $1, $2	# E : L U L U
+
+	nop
+	nop
+	and	$2, $6, $2	# E :
+        beq     $2, $not_found	# U : U L U L
+
+$found_it:
+#ifdef CONFIG_ALPHA_EV67
+	/*
+	 * Since we are guaranteed to have set one of the bits, we don't
+	 * have to worry about coming back with a 0x40 out of cttz...
+	 */
+	cttz	$2, $3		# U0 :
+	addq	$0, $3, $0	# E : All done
+	nop			# E :
+	ret			# L0 : L U L U
+#else
+	/*
+	 * Slow and clunky.  It can probably be improved.
+	 * An exercise left for others.
+	 */
+        negq    $2, $3		# E :
+        and     $2, $3, $2	# E :
+        and     $2, 0x0f, $1	# E :
+        addq    $0, 4, $3	# E :
+
+        cmoveq  $1, $3, $0	# E : Latency 2, extra map cycle
+	nop			# E : keep with cmov
+        and     $2, 0x33, $1	# E :
+        addq    $0, 2, $3	# E : U L U L : 2 cycle stall on $0
+
+        cmoveq  $1, $3, $0	# E : Latency 2, extra map cycle
+	nop			# E : keep with cmov
+        and     $2, 0x55, $1	# E :
+        addq    $0, 1, $3	# E : U L U L : 2 cycle stall on $0
+
+        cmoveq  $1, $3, $0	# E : Latency 2, extra map cycle
+	nop
+	nop
+	ret			# L0 : L U L U
+#endif
+
+	# Deal with the case where $18 > 8 bytes remain to be
+	# searched.  $16 may not be aligned.
+	.align 4
+$first_quad:
+	andnot	$16, 0x7, $0	# E :
+        insqh   $3, $16, $2	# U : $2 = 0000ffffffffffff ($16<0:2> ff)
+        xor	$1, $17, $1	# E :
+	or	$1, $2, $1	# E : U L U L $1 = ====ffffffffffff
+
+        cmpbge  $31, $1, $2	# E :
+        bne     $2, $found_it	# U :
+	# At least one byte left to process.
+	ldq	$1, 8($0)	# L :
+	subq	$5, 1, $18	# E : U L U L
+
+	addq	$0, 8, $0	# E :
+	# Make $18 point to last quad to be accessed (the
+	# last quad may or may not be partial).
+	andnot	$18, 0x7, $18	# E :
+	cmpult	$0, $18, $2	# E :
+	beq	$2, $final	# U : U L U L
+
+	# At least two quads remain to be accessed.
+
+	subq	$18, $0, $4	# E : $4 <- nr quads to be processed
+	and	$4, 8, $4	# E : odd number of quads?
+	bne	$4, $odd_quad_count # U :
+	# At least three quads remain to be accessed
+	mov	$1, $4		# E : L U L U : move prefetched value to correct reg
+
+	.align	4
+$unrolled_loop:
+	ldq	$1, 8($0)	# L : prefetch $1
+	xor	$17, $4, $2	# E :
+	cmpbge	$31, $2, $2	# E :
+	bne	$2, $found_it	# U : U L U L
+
+	addq	$0, 8, $0	# E :
+	nop			# E :
+	nop			# E :
+	nop			# E :
+
+$odd_quad_count:
+	xor	$17, $1, $2	# E :
+	ldq	$4, 8($0)	# L : prefetch $4
+	cmpbge	$31, $2, $2	# E :
+	addq	$0, 8, $6	# E :
+
+	bne	$2, $found_it	# U :
+	cmpult	$6, $18, $6	# E :
+	addq	$0, 8, $0	# E :
+	nop			# E :
+
+	bne	$6, $unrolled_loop # U :
+	mov	$4, $1		# E : move prefetched value into $1
+	nop			# E :
+	nop			# E :
+
+$final:	subq	$5, $0, $18	# E : $18 <- number of bytes left to do
+	nop			# E :
+	nop			# E :
+	bne	$18, $last_quad	# U :
+
+$not_found:
+	mov	$31, $0		# E :
+	nop			# E :
+	nop			# E :
+	ret			# L0 :
+
+        .end memchr
+	EXPORT_SYMBOL(memchr)
diff --git a/arch/alpha/lib/ev6-memcpy.S b/arch/alpha/lib/ev6-memcpy.S
new file mode 100644
index 000000000..ffbd056b6
--- /dev/null
+++ b/arch/alpha/lib/ev6-memcpy.S
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-memcpy.S
+ * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Reasonably optimized memcpy() routine for the Alpha 21264
+ *
+ *	- memory accessed as aligned quadwords only
+ *	- uses bcmpge to compare 8 bytes in parallel
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ *
+ * Temp usage notes:
+ *	$1,$2,		- scratch
+ */
+#include <asm/export.h>
+	.set noreorder
+	.set noat
+
+	.align	4
+	.globl memcpy
+	.ent memcpy
+memcpy:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	mov	$16, $0			# E : copy dest to return
+	ble	$18, $nomoredata	# U : done with the copy?
+	xor	$16, $17, $1		# E : are source and dest alignments the same?
+	and	$1, 7, $1		# E : are they the same mod 8?
+
+	bne	$1, $misaligned		# U : Nope - gotta do this the slow way
+	/* source and dest are same mod 8 address */
+	and	$16, 7, $1		# E : Are both 0mod8?
+	beq	$1, $both_0mod8		# U : Yes
+	nop				# E :
+
+	/*
+	 * source and dest are same misalignment.  move a byte at a time
+	 * until a 0mod8 alignment for both is reached.
+	 * At least one byte more to move
+	 */
+
+$head_align:
+	ldbu	$1, 0($17)		# L : grab a byte
+	subq	$18, 1, $18		# E : count--
+	addq	$17, 1, $17		# E : src++
+	stb	$1, 0($16)		# L :
+	addq	$16, 1, $16		# E : dest++
+	and	$16, 7, $1		# E : Are we at 0mod8 yet?
+	ble	$18, $nomoredata	# U : done with the copy?
+	bne	$1, $head_align		# U :
+
+$both_0mod8:
+	cmple	$18, 127, $1		# E : Can we unroll the loop?
+	bne	$1, $no_unroll		# U :
+	and	$16, 63, $1		# E : get mod64 alignment
+	beq	$1, $do_unroll		# U : no single quads to fiddle
+
+$single_head_quad:
+	ldq	$1, 0($17)		# L : get 8 bytes
+	subq	$18, 8, $18		# E : count -= 8
+	addq	$17, 8, $17		# E : src += 8
+	nop				# E :
+
+	stq	$1, 0($16)		# L : store
+	addq	$16, 8, $16		# E : dest += 8
+	and	$16, 63, $1		# E : get mod64 alignment
+	bne	$1, $single_head_quad	# U : still not fully aligned
+
+$do_unroll:
+	addq	$16, 64, $7		# E : Initial (+1 trip) wh64 address
+	cmple	$18, 127, $1		# E : Can we go through the unrolled loop?
+	bne	$1, $tail_quads		# U : Nope
+	nop				# E : 
+
+$unroll_body:
+	wh64	($7)			# L1 : memory subsystem hint: 64 bytes at
+					# ($7) are about to be over-written
+	ldq	$6, 0($17)		# L0 : bytes 0..7
+	nop				# E :
+	nop				# E :
+
+	ldq	$4, 8($17)		# L : bytes 8..15
+	ldq	$5, 16($17)		# L : bytes 16..23
+	addq	$7, 64, $7		# E : Update next wh64 address
+	nop				# E :
+
+	ldq	$3, 24($17)		# L : bytes 24..31
+	addq	$16, 64, $1		# E : fallback value for wh64
+	nop				# E :
+	nop				# E :
+
+	addq	$17, 32, $17		# E : src += 32 bytes
+	stq	$6, 0($16)		# L : bytes 0..7
+	nop				# E :
+	nop				# E :
+
+	stq	$4, 8($16)		# L : bytes 8..15
+	stq	$5, 16($16)		# L : bytes 16..23
+	subq	$18, 192, $2		# E : At least two more trips to go?
+	nop				# E :
+
+	stq	$3, 24($16)		# L : bytes 24..31
+	addq	$16, 32, $16		# E : dest += 32 bytes
+	nop				# E :
+	nop				# E :
+
+	ldq	$6, 0($17)		# L : bytes 0..7
+	ldq	$4, 8($17)		# L : bytes 8..15
+	cmovlt	$2, $1, $7		# E : Latency 2, extra map slot - Use
+					# fallback wh64 address if < 2 more trips
+	nop				# E :
+
+	ldq	$5, 16($17)		# L : bytes 16..23
+	ldq	$3, 24($17)		# L : bytes 24..31
+	addq	$16, 32, $16		# E : dest += 32
+	subq	$18, 64, $18		# E : count -= 64
+
+	addq	$17, 32, $17		# E : src += 32
+	stq	$6, -32($16)		# L : bytes 0..7
+	stq	$4, -24($16)		# L : bytes 8..15
+	cmple	$18, 63, $1		# E : At least one more trip?
+
+	stq	$5, -16($16)		# L : bytes 16..23
+	stq	$3, -8($16)		# L : bytes 24..31
+	nop				# E :
+	beq	$1, $unroll_body
+
+$tail_quads:
+$no_unroll:
+	.align 4
+	subq	$18, 8, $18		# E : At least a quad left?
+	blt	$18, $less_than_8	# U : Nope
+	nop				# E :
+	nop				# E :
+
+$move_a_quad:
+	ldq	$1, 0($17)		# L : fetch 8
+	subq	$18, 8, $18		# E : count -= 8
+	addq	$17, 8, $17		# E : src += 8
+	nop				# E :
+
+	stq	$1, 0($16)		# L : store 8
+	addq	$16, 8, $16		# E : dest += 8
+	bge	$18, $move_a_quad	# U :
+	nop				# E :
+
+$less_than_8:
+	.align 4
+	addq	$18, 8, $18		# E : add back for trailing bytes
+	ble	$18, $nomoredata	# U : All-done
+	nop				# E :
+	nop				# E :
+
+	/* Trailing bytes */
+$tail_bytes:
+	subq	$18, 1, $18		# E : count--
+	ldbu	$1, 0($17)		# L : fetch a byte
+	addq	$17, 1, $17		# E : src++
+	nop				# E :
+
+	stb	$1, 0($16)		# L : store a byte
+	addq	$16, 1, $16		# E : dest++
+	bgt	$18, $tail_bytes	# U : more to be done?
+	nop				# E :
+
+	/* branching to exit takes 3 extra cycles, so replicate exit here */
+	ret	$31, ($26), 1		# L0 :
+	nop				# E :
+	nop				# E :
+	nop				# E :
+
+$misaligned:
+	mov	$0, $4			# E : dest temp
+	and	$0, 7, $1		# E : dest alignment mod8
+	beq	$1, $dest_0mod8		# U : life doesnt totally suck
+	nop
+
+$aligndest:
+	ble	$18, $nomoredata	# U :
+	ldbu	$1, 0($17)		# L : fetch a byte
+	subq	$18, 1, $18		# E : count--
+	addq	$17, 1, $17		# E : src++
+
+	stb	$1, 0($4)		# L : store it
+	addq	$4, 1, $4		# E : dest++
+	and	$4, 7, $1		# E : dest 0mod8 yet?
+	bne	$1, $aligndest		# U : go until we are aligned.
+
+	/* Source has unknown alignment, but dest is known to be 0mod8 */
+$dest_0mod8:
+	subq	$18, 8, $18		# E : At least a quad left?
+	blt	$18, $misalign_tail	# U : Nope
+	ldq_u	$3, 0($17)		# L : seed (rotating load) of 8 bytes
+	nop				# E :
+
+$mis_quad:
+	ldq_u	$16, 8($17)		# L : Fetch next 8
+	extql	$3, $17, $3		# U : masking
+	extqh	$16, $17, $1		# U : masking
+	bis	$3, $1, $1		# E : merged bytes to store
+
+	subq	$18, 8, $18		# E : count -= 8
+	addq	$17, 8, $17		# E : src += 8
+	stq	$1, 0($4)		# L : store 8 (aligned)
+	mov	$16, $3			# E : "rotate" source data
+
+	addq	$4, 8, $4		# E : dest += 8
+	bge	$18, $mis_quad		# U : More quads to move
+	nop
+	nop
+
+$misalign_tail:
+	addq	$18, 8, $18		# E : account for tail stuff
+	ble	$18, $nomoredata	# U :
+	nop
+	nop
+
+$misalign_byte:
+	ldbu	$1, 0($17)		# L : fetch 1
+	subq	$18, 1, $18		# E : count--
+	addq	$17, 1, $17		# E : src++
+	nop				# E :
+
+	stb	$1, 0($4)		# L : store
+	addq	$4, 1, $4		# E : dest++
+	bgt	$18, $misalign_byte	# U : more to go?
+	nop
+
+
+$nomoredata:
+	ret	$31, ($26), 1		# L0 :
+	nop				# E :
+	nop				# E :
+	nop				# E :
+
+	.end memcpy
+	EXPORT_SYMBOL(memcpy)
+
+/* For backwards module compatibility.  */
+__memcpy = memcpy
+.globl __memcpy
diff --git a/arch/alpha/lib/ev6-memset.S b/arch/alpha/lib/ev6-memset.S
new file mode 100644
index 000000000..1cfcfbbea
--- /dev/null
+++ b/arch/alpha/lib/ev6-memset.S
@@ -0,0 +1,605 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-memset.S
+ *
+ * This is an efficient (and relatively small) implementation of the C library
+ * "memset()" function for the 21264 implementation of Alpha.
+ *
+ * 21264 version  contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * The algorithm for the leading and trailing quadwords remains the same,
+ * however the loop has been unrolled to enable better memory throughput,
+ * and the code has been replicated for each of the entry points: __memset
+ * and __memset16 to permit better scheduling to eliminate the stalling
+ * encountered during the mask replication.
+ * A future enhancement might be to put in a byte store loop for really
+ * small (say < 32 bytes) memset()s.  Whether or not that change would be
+ * a win in the kernel would depend upon the contextual usage.
+ * WARNING: Maintaining this is going to be more work than the above version,
+ * as fixes will need to be made in multiple places.  The performance gain
+ * is worth it.
+ */
+#include <asm/export.h>
+	.set noat
+	.set noreorder
+.text
+	.globl memset
+	.globl __memset
+	.globl ___memset
+	.globl __memset16
+	.globl __constant_c_memset
+
+	.ent ___memset
+.align 5
+___memset:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	/*
+	 * Serious stalling happens.  The only way to mitigate this is to
+	 * undertake a major re-write to interleave the constant materialization
+	 * with other parts of the fall-through code.  This is important, even
+	 * though it makes maintenance tougher.
+	 * Do this later.
+	 */
+	and $17,255,$1		# E : 00000000000000ch
+	insbl $17,1,$2		# U : 000000000000ch00
+	bis $16,$16,$0		# E : return value
+	ble $18,end_b		# U : zero length requested?
+
+	addq $18,$16,$6		# E : max address to write to
+	bis	$1,$2,$17	# E : 000000000000chch
+	insbl	$1,2,$3		# U : 0000000000ch0000
+	insbl	$1,3,$4		# U : 00000000ch000000
+
+	or	$3,$4,$3	# E : 00000000chch0000
+	inswl	$17,4,$5	# U : 0000chch00000000
+	xor	$16,$6,$1	# E : will complete write be within one quadword?
+	inswl	$17,6,$2	# U : chch000000000000
+
+	or	$17,$3,$17	# E : 00000000chchchch
+	or	$2,$5,$2	# E : chchchch00000000
+	bic	$1,7,$1		# E : fit within a single quadword?
+	and	$16,7,$3	# E : Target addr misalignment
+
+	or	$17,$2,$17	# E : chchchchchchchch
+	beq	$1,within_quad_b # U :
+	nop			# E :
+	beq	$3,aligned_b	# U : target is 0mod8
+
+	/*
+	 * Target address is misaligned, and won't fit within a quadword
+	 */
+	ldq_u $4,0($16)		# L : Fetch first partial
+	bis $16,$16,$5		# E : Save the address
+	insql $17,$16,$2	# U : Insert new bytes
+	subq $3,8,$3		# E : Invert (for addressing uses)
+
+	addq $18,$3,$18		# E : $18 is new count ($3 is negative)
+	mskql $4,$16,$4		# U : clear relevant parts of the quad
+	subq $16,$3,$16		# E : $16 is new aligned destination
+	bis $2,$4,$1		# E : Final bytes
+
+	nop
+	stq_u $1,0($5)		# L : Store result
+	nop
+	nop
+
+.align 4
+aligned_b:
+	/*
+	 * We are now guaranteed to be quad aligned, with at least
+	 * one partial quad to write.
+	 */
+
+	sra $18,3,$3		# U : Number of remaining quads to write
+	and $18,7,$18		# E : Number of trailing bytes to write
+	bis $16,$16,$5		# E : Save dest address
+	beq $3,no_quad_b	# U : tail stuff only
+
+	/*
+	 * it's worth the effort to unroll this and use wh64 if possible
+	 * Lifted a bunch of code from clear_user.S
+	 * At this point, entry values are:
+	 * $16	Current destination address
+	 * $5	A copy of $16
+	 * $6	The max quadword address to write to
+	 * $18	Number trailer bytes
+	 * $3	Number quads to write
+	 */
+
+	and	$16, 0x3f, $2	# E : Forward work (only useful for unrolled loop)
+	subq	$3, 16, $4	# E : Only try to unroll if > 128 bytes
+	subq	$2, 0x40, $1	# E : bias counter (aligning stuff 0mod64)
+	blt	$4, loop_b	# U :
+
+	/*
+	 * We know we've got at least 16 quads, minimum of one trip
+	 * through unrolled loop.  Do a quad at a time to get us 0mod64
+	 * aligned.
+	 */
+
+	nop			# E :
+	nop			# E :
+	nop			# E :
+	beq	$1, $bigalign_b	# U :
+
+$alignmod64_b:
+	stq	$17, 0($5)	# L :
+	subq	$3, 1, $3	# E : For consistency later
+	addq	$1, 8, $1	# E : Increment towards zero for alignment
+	addq	$5, 8, $4	# E : Initial wh64 address (filler instruction)
+
+	nop
+	nop
+	addq	$5, 8, $5	# E : Inc address
+	blt	$1, $alignmod64_b # U :
+
+$bigalign_b:
+	/*
+	 * $3 - number quads left to go
+	 * $5 - target address (aligned 0mod64)
+	 * $17 - mask of stuff to store
+	 * Scratch registers available: $7, $2, $4, $1
+	 * we know that we'll be taking a minimum of one trip through
+ 	 * CWG Section 3.7.6: do not expect a sustained store rate of > 1/cycle
+	 * Assumes the wh64 needs to be for 2 trips through the loop in the future
+	 * The wh64 is issued on for the starting destination address for trip +2
+	 * through the loop, and if there are less than two trips left, the target
+	 * address will be for the current trip.
+	 */
+
+$do_wh64_b:
+	wh64	($4)		# L1 : memory subsystem write hint
+	subq	$3, 24, $2	# E : For determining future wh64 addresses
+	stq	$17, 0($5)	# L :
+	nop			# E :
+
+	addq	$5, 128, $4	# E : speculative target of next wh64
+	stq	$17, 8($5)	# L :
+	stq	$17, 16($5)	# L :
+	addq	$5, 64, $7	# E : Fallback address for wh64 (== next trip addr)
+
+	stq	$17, 24($5)	# L :
+	stq	$17, 32($5)	# L :
+	cmovlt	$2, $7, $4	# E : Latency 2, extra mapping cycle
+	nop
+
+	stq	$17, 40($5)	# L :
+	stq	$17, 48($5)	# L :
+	subq	$3, 16, $2	# E : Repeat the loop at least once more?
+	nop
+
+	stq	$17, 56($5)	# L :
+	addq	$5, 64, $5	# E :
+	subq	$3, 8, $3	# E :
+	bge	$2, $do_wh64_b	# U :
+
+	nop
+	nop
+	nop
+	beq	$3, no_quad_b	# U : Might have finished already
+
+.align 4
+	/*
+	 * Simple loop for trailing quadwords, or for small amounts
+	 * of data (where we can't use an unrolled loop and wh64)
+	 */
+loop_b:
+	stq $17,0($5)		# L :
+	subq $3,1,$3		# E : Decrement number quads left
+	addq $5,8,$5		# E : Inc address
+	bne $3,loop_b		# U : more?
+
+no_quad_b:
+	/*
+	 * Write 0..7 trailing bytes.
+	 */
+	nop			# E :
+	beq $18,end_b		# U : All done?
+	ldq $7,0($5)		# L :
+	mskqh $7,$6,$2		# U : Mask final quad
+
+	insqh $17,$6,$4		# U : New bits
+	bis $2,$4,$1		# E : Put it all together
+	stq $1,0($5)		# L : And back to memory
+	ret $31,($26),1		# L0 :
+
+within_quad_b:
+	ldq_u $1,0($16)		# L :
+	insql $17,$16,$2	# U : New bits
+	mskql $1,$16,$4		# U : Clear old
+	bis $2,$4,$2		# E : New result
+
+	mskql $2,$6,$4		# U :
+	mskqh $1,$6,$2		# U :
+	bis $2,$4,$1		# E :
+	stq_u $1,0($16)		# L :
+
+end_b:
+	nop
+	nop
+	nop
+	ret $31,($26),1		# L0 :
+	.end ___memset
+	EXPORT_SYMBOL(___memset)
+
+	/*
+	 * This is the original body of code, prior to replication and
+	 * rescheduling.  Leave it here, as there may be calls to this
+	 * entry point.
+	 */
+.align 4
+	.ent __constant_c_memset
+__constant_c_memset:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	addq $18,$16,$6		# E : max address to write to
+	bis $16,$16,$0		# E : return value
+	xor $16,$6,$1		# E : will complete write be within one quadword?
+	ble $18,end		# U : zero length requested?
+
+	bic $1,7,$1		# E : fit within a single quadword
+	beq $1,within_one_quad	# U :
+	and $16,7,$3		# E : Target addr misalignment
+	beq $3,aligned		# U : target is 0mod8
+
+	/*
+	 * Target address is misaligned, and won't fit within a quadword
+	 */
+	ldq_u $4,0($16)		# L : Fetch first partial
+	bis $16,$16,$5		# E : Save the address
+	insql $17,$16,$2	# U : Insert new bytes
+	subq $3,8,$3		# E : Invert (for addressing uses)
+
+	addq $18,$3,$18		# E : $18 is new count ($3 is negative)
+	mskql $4,$16,$4		# U : clear relevant parts of the quad
+	subq $16,$3,$16		# E : $16 is new aligned destination
+	bis $2,$4,$1		# E : Final bytes
+
+	nop
+	stq_u $1,0($5)		# L : Store result
+	nop
+	nop
+
+.align 4
+aligned:
+	/*
+	 * We are now guaranteed to be quad aligned, with at least
+	 * one partial quad to write.
+	 */
+
+	sra $18,3,$3		# U : Number of remaining quads to write
+	and $18,7,$18		# E : Number of trailing bytes to write
+	bis $16,$16,$5		# E : Save dest address
+	beq $3,no_quad		# U : tail stuff only
+
+	/*
+	 * it's worth the effort to unroll this and use wh64 if possible
+	 * Lifted a bunch of code from clear_user.S
+	 * At this point, entry values are:
+	 * $16	Current destination address
+	 * $5	A copy of $16
+	 * $6	The max quadword address to write to
+	 * $18	Number trailer bytes
+	 * $3	Number quads to write
+	 */
+
+	and	$16, 0x3f, $2	# E : Forward work (only useful for unrolled loop)
+	subq	$3, 16, $4	# E : Only try to unroll if > 128 bytes
+	subq	$2, 0x40, $1	# E : bias counter (aligning stuff 0mod64)
+	blt	$4, loop	# U :
+
+	/*
+	 * We know we've got at least 16 quads, minimum of one trip
+	 * through unrolled loop.  Do a quad at a time to get us 0mod64
+	 * aligned.
+	 */
+
+	nop			# E :
+	nop			# E :
+	nop			# E :
+	beq	$1, $bigalign	# U :
+
+$alignmod64:
+	stq	$17, 0($5)	# L :
+	subq	$3, 1, $3	# E : For consistency later
+	addq	$1, 8, $1	# E : Increment towards zero for alignment
+	addq	$5, 8, $4	# E : Initial wh64 address (filler instruction)
+
+	nop
+	nop
+	addq	$5, 8, $5	# E : Inc address
+	blt	$1, $alignmod64	# U :
+
+$bigalign:
+	/*
+	 * $3 - number quads left to go
+	 * $5 - target address (aligned 0mod64)
+	 * $17 - mask of stuff to store
+	 * Scratch registers available: $7, $2, $4, $1
+	 * we know that we'll be taking a minimum of one trip through
+ 	 * CWG Section 3.7.6: do not expect a sustained store rate of > 1/cycle
+	 * Assumes the wh64 needs to be for 2 trips through the loop in the future
+	 * The wh64 is issued on for the starting destination address for trip +2
+	 * through the loop, and if there are less than two trips left, the target
+	 * address will be for the current trip.
+	 */
+
+$do_wh64:
+	wh64	($4)		# L1 : memory subsystem write hint
+	subq	$3, 24, $2	# E : For determining future wh64 addresses
+	stq	$17, 0($5)	# L :
+	nop			# E :
+
+	addq	$5, 128, $4	# E : speculative target of next wh64
+	stq	$17, 8($5)	# L :
+	stq	$17, 16($5)	# L :
+	addq	$5, 64, $7	# E : Fallback address for wh64 (== next trip addr)
+
+	stq	$17, 24($5)	# L :
+	stq	$17, 32($5)	# L :
+	cmovlt	$2, $7, $4	# E : Latency 2, extra mapping cycle
+	nop
+
+	stq	$17, 40($5)	# L :
+	stq	$17, 48($5)	# L :
+	subq	$3, 16, $2	# E : Repeat the loop at least once more?
+	nop
+
+	stq	$17, 56($5)	# L :
+	addq	$5, 64, $5	# E :
+	subq	$3, 8, $3	# E :
+	bge	$2, $do_wh64	# U :
+
+	nop
+	nop
+	nop
+	beq	$3, no_quad	# U : Might have finished already
+
+.align 4
+	/*
+	 * Simple loop for trailing quadwords, or for small amounts
+	 * of data (where we can't use an unrolled loop and wh64)
+	 */
+loop:
+	stq $17,0($5)		# L :
+	subq $3,1,$3		# E : Decrement number quads left
+	addq $5,8,$5		# E : Inc address
+	bne $3,loop		# U : more?
+
+no_quad:
+	/*
+	 * Write 0..7 trailing bytes.
+	 */
+	nop			# E :
+	beq $18,end		# U : All done?
+	ldq $7,0($5)		# L :
+	mskqh $7,$6,$2		# U : Mask final quad
+
+	insqh $17,$6,$4		# U : New bits
+	bis $2,$4,$1		# E : Put it all together
+	stq $1,0($5)		# L : And back to memory
+	ret $31,($26),1		# L0 :
+
+within_one_quad:
+	ldq_u $1,0($16)		# L :
+	insql $17,$16,$2	# U : New bits
+	mskql $1,$16,$4		# U : Clear old
+	bis $2,$4,$2		# E : New result
+
+	mskql $2,$6,$4		# U :
+	mskqh $1,$6,$2		# U :
+	bis $2,$4,$1		# E :
+	stq_u $1,0($16)		# L :
+
+end:
+	nop
+	nop
+	nop
+	ret $31,($26),1		# L0 :
+	.end __constant_c_memset
+	EXPORT_SYMBOL(__constant_c_memset)
+
+	/*
+	 * This is a replicant of the __constant_c_memset code, rescheduled
+	 * to mask stalls.  Note that entry point names also had to change
+	 */
+	.align 5
+	.ent __memset16
+
+__memset16:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	inswl $17,0,$5		# U : 000000000000c1c2
+	inswl $17,2,$2		# U : 00000000c1c20000
+	bis $16,$16,$0		# E : return value
+	addq	$18,$16,$6	# E : max address to write to
+
+	ble $18, end_w		# U : zero length requested?
+	inswl	$17,4,$3	# U : 0000c1c200000000
+	inswl	$17,6,$4	# U : c1c2000000000000
+	xor	$16,$6,$1	# E : will complete write be within one quadword?
+
+	or	$2,$5,$2	# E : 00000000c1c2c1c2
+	or	$3,$4,$17	# E : c1c2c1c200000000
+	bic	$1,7,$1		# E : fit within a single quadword
+	and	$16,7,$3	# E : Target addr misalignment
+
+	or	$17,$2,$17	# E : c1c2c1c2c1c2c1c2
+	beq $1,within_quad_w	# U :
+	nop
+	beq $3,aligned_w	# U : target is 0mod8
+
+	/*
+	 * Target address is misaligned, and won't fit within a quadword
+	 */
+	ldq_u $4,0($16)		# L : Fetch first partial
+	bis $16,$16,$5		# E : Save the address
+	insql $17,$16,$2	# U : Insert new bytes
+	subq $3,8,$3		# E : Invert (for addressing uses)
+
+	addq $18,$3,$18		# E : $18 is new count ($3 is negative)
+	mskql $4,$16,$4		# U : clear relevant parts of the quad
+	subq $16,$3,$16		# E : $16 is new aligned destination
+	bis $2,$4,$1		# E : Final bytes
+
+	nop
+	stq_u $1,0($5)		# L : Store result
+	nop
+	nop
+
+.align 4
+aligned_w:
+	/*
+	 * We are now guaranteed to be quad aligned, with at least
+	 * one partial quad to write.
+	 */
+
+	sra $18,3,$3		# U : Number of remaining quads to write
+	and $18,7,$18		# E : Number of trailing bytes to write
+	bis $16,$16,$5		# E : Save dest address
+	beq $3,no_quad_w	# U : tail stuff only
+
+	/*
+	 * it's worth the effort to unroll this and use wh64 if possible
+	 * Lifted a bunch of code from clear_user.S
+	 * At this point, entry values are:
+	 * $16	Current destination address
+	 * $5	A copy of $16
+	 * $6	The max quadword address to write to
+	 * $18	Number trailer bytes
+	 * $3	Number quads to write
+	 */
+
+	and	$16, 0x3f, $2	# E : Forward work (only useful for unrolled loop)
+	subq	$3, 16, $4	# E : Only try to unroll if > 128 bytes
+	subq	$2, 0x40, $1	# E : bias counter (aligning stuff 0mod64)
+	blt	$4, loop_w	# U :
+
+	/*
+	 * We know we've got at least 16 quads, minimum of one trip
+	 * through unrolled loop.  Do a quad at a time to get us 0mod64
+	 * aligned.
+	 */
+
+	nop			# E :
+	nop			# E :
+	nop			# E :
+	beq	$1, $bigalign_w	# U :
+
+$alignmod64_w:
+	stq	$17, 0($5)	# L :
+	subq	$3, 1, $3	# E : For consistency later
+	addq	$1, 8, $1	# E : Increment towards zero for alignment
+	addq	$5, 8, $4	# E : Initial wh64 address (filler instruction)
+
+	nop
+	nop
+	addq	$5, 8, $5	# E : Inc address
+	blt	$1, $alignmod64_w	# U :
+
+$bigalign_w:
+	/*
+	 * $3 - number quads left to go
+	 * $5 - target address (aligned 0mod64)
+	 * $17 - mask of stuff to store
+	 * Scratch registers available: $7, $2, $4, $1
+	 * we know that we'll be taking a minimum of one trip through
+ 	 * CWG Section 3.7.6: do not expect a sustained store rate of > 1/cycle
+	 * Assumes the wh64 needs to be for 2 trips through the loop in the future
+	 * The wh64 is issued on for the starting destination address for trip +2
+	 * through the loop, and if there are less than two trips left, the target
+	 * address will be for the current trip.
+	 */
+
+$do_wh64_w:
+	wh64	($4)		# L1 : memory subsystem write hint
+	subq	$3, 24, $2	# E : For determining future wh64 addresses
+	stq	$17, 0($5)	# L :
+	nop			# E :
+
+	addq	$5, 128, $4	# E : speculative target of next wh64
+	stq	$17, 8($5)	# L :
+	stq	$17, 16($5)	# L :
+	addq	$5, 64, $7	# E : Fallback address for wh64 (== next trip addr)
+
+	stq	$17, 24($5)	# L :
+	stq	$17, 32($5)	# L :
+	cmovlt	$2, $7, $4	# E : Latency 2, extra mapping cycle
+	nop
+
+	stq	$17, 40($5)	# L :
+	stq	$17, 48($5)	# L :
+	subq	$3, 16, $2	# E : Repeat the loop at least once more?
+	nop
+
+	stq	$17, 56($5)	# L :
+	addq	$5, 64, $5	# E :
+	subq	$3, 8, $3	# E :
+	bge	$2, $do_wh64_w	# U :
+
+	nop
+	nop
+	nop
+	beq	$3, no_quad_w	# U : Might have finished already
+
+.align 4
+	/*
+	 * Simple loop for trailing quadwords, or for small amounts
+	 * of data (where we can't use an unrolled loop and wh64)
+	 */
+loop_w:
+	stq $17,0($5)		# L :
+	subq $3,1,$3		# E : Decrement number quads left
+	addq $5,8,$5		# E : Inc address
+	bne $3,loop_w		# U : more?
+
+no_quad_w:
+	/*
+	 * Write 0..7 trailing bytes.
+	 */
+	nop			# E :
+	beq $18,end_w		# U : All done?
+	ldq $7,0($5)		# L :
+	mskqh $7,$6,$2		# U : Mask final quad
+
+	insqh $17,$6,$4		# U : New bits
+	bis $2,$4,$1		# E : Put it all together
+	stq $1,0($5)		# L : And back to memory
+	ret $31,($26),1		# L0 :
+
+within_quad_w:
+	ldq_u $1,0($16)		# L :
+	insql $17,$16,$2	# U : New bits
+	mskql $1,$16,$4		# U : Clear old
+	bis $2,$4,$2		# E : New result
+
+	mskql $2,$6,$4		# U :
+	mskqh $1,$6,$2		# U :
+	bis $2,$4,$1		# E :
+	stq_u $1,0($16)		# L :
+
+end_w:
+	nop
+	nop
+	nop
+	ret $31,($26),1		# L0 :
+
+	.end __memset16
+	EXPORT_SYMBOL(__memset16)
+
+memset = ___memset
+__memset = ___memset
+	EXPORT_SYMBOL(memset)
+	EXPORT_SYMBOL(__memset)
diff --git a/arch/alpha/lib/ev6-stxcpy.S b/arch/alpha/lib/ev6-stxcpy.S
new file mode 100644
index 000000000..65f5f7310
--- /dev/null
+++ b/arch/alpha/lib/ev6-stxcpy.S
@@ -0,0 +1,322 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-stxcpy.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Copy a null-terminated string from SRC to DST.
+ *
+ * This is an internal routine used by strcpy, stpcpy, and strcat.
+ * As such, it uses special linkage conventions to make implementation
+ * of these public functions more efficient.
+ *
+ * On input:
+ *	t9 = return address
+ *	a0 = DST
+ *	a1 = SRC
+ *
+ * On output:
+ *	t12 = bitmask (with one bit set) indicating the last byte written
+ *	a0  = unaligned address of the last *word* written
+ *
+ * Furthermore, v0, a3-a5, t11, and t12 are untouched.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+
+#include <asm/regdef.h>
+
+	.set noat
+	.set noreorder
+
+	.text
+
+/* There is a problem with either gdb (as of 4.16) or gas (as of 2.7) that
+   doesn't like putting the entry point for a procedure somewhere in the
+   middle of the procedure descriptor.  Work around this by putting the
+   aligned copy in its own procedure descriptor */
+
+
+	.ent stxcpy_aligned
+	.align 4
+stxcpy_aligned:
+	.frame sp, 0, t9
+	.prologue 0
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == the first source word.  */
+
+	/* Create the 1st output word and detect 0's in the 1st input word.  */
+	lda	t2, -1		# E : build a mask against false zero
+	mskqh	t2, a1, t2	# U :   detection in the src word (stall)
+	mskqh	t1, a1, t3	# U :
+	ornot	t1, t2, t2	# E : (stall)
+
+	mskql	t0, a1, t0	# U : assemble the first output word
+	cmpbge	zero, t2, t8	# E : bits set iff null found
+	or	t0, t3, t1	# E : (stall)
+	bne	t8, $a_eos	# U : (stall)
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == a source word not containing a null.  */
+	/* Nops here to separate store quads from load quads */
+
+$a_loop:
+	stq_u	t1, 0(a0)	# L :
+	addq	a0, 8, a0	# E :
+	nop
+	nop
+
+	ldq_u	t1, 0(a1)	# L : Latency=3
+	addq	a1, 8, a1	# E :
+	cmpbge	zero, t1, t8	# E : (3 cycle stall)
+	beq	t8, $a_loop	# U : (stall for t8)
+
+	/* Take care of the final (partial) word store.
+	   On entry to this basic block we have:
+	   t1 == the source word containing the null
+	   t8 == the cmpbge mask that found it.  */
+$a_eos:
+	negq	t8, t6		# E : find low bit set
+	and	t8, t6, t12	# E : (stall)
+	/* For the sake of the cache, don't read a destination word
+	   if we're not going to need it.  */
+	and	t12, 0x80, t6	# E : (stall)
+	bne	t6, 1f		# U : (stall)
+
+	/* We're doing a partial word store and so need to combine
+	   our source and original destination words.  */
+	ldq_u	t0, 0(a0)	# L : Latency=3
+	subq	t12, 1, t6	# E :
+	zapnot	t1, t6, t1	# U : clear src bytes >= null (stall)
+	or	t12, t6, t8	# E : (stall)
+
+	zap	t0, t8, t0	# E : clear dst bytes <= null
+	or	t0, t1, t1	# E : (stall)
+	nop
+	nop
+
+1:	stq_u	t1, 0(a0)	# L :
+	ret	(t9)		# L0 : Latency=3
+	nop
+	nop
+
+	.end stxcpy_aligned
+
+	.align 4
+	.ent __stxcpy
+	.globl __stxcpy
+__stxcpy:
+	.frame sp, 0, t9
+	.prologue 0
+
+	/* Are source and destination co-aligned?  */
+	xor	a0, a1, t0	# E :
+	unop			# E :
+	and	t0, 7, t0	# E : (stall)
+	bne	t0, $unaligned	# U : (stall)
+
+	/* We are co-aligned; take care of a partial first word.  */
+	ldq_u	t1, 0(a1)		# L : load first src word
+	and	a0, 7, t0		# E : take care not to load a word ...
+	addq	a1, 8, a1		# E :
+	beq	t0, stxcpy_aligned	# U : ... if we wont need it (stall)
+
+	ldq_u	t0, 0(a0)	# L :
+	br	stxcpy_aligned	# L0 : Latency=3
+	nop
+	nop
+
+
+/* The source and destination are not co-aligned.  Align the destination
+   and cope.  We have to be very careful about not reading too much and
+   causing a SEGV.  */
+
+	.align 4
+$u_head:
+	/* We know just enough now to be able to assemble the first
+	   full source word.  We can still find a zero at the end of it
+	   that prevents us from outputting the whole thing.
+
+	   On entry to this basic block:
+	   t0 == the first dest word, for masking back in, if needed else 0
+	   t1 == the low bits of the first source word
+	   t6 == bytemask that is -1 in dest word bytes */
+
+	ldq_u	t2, 8(a1)	# L :
+	addq	a1, 8, a1	# E :
+	extql	t1, a1, t1	# U : (stall on a1)
+	extqh	t2, a1, t4	# U : (stall on a1)
+
+	mskql	t0, a0, t0	# U :
+	or	t1, t4, t1	# E :
+	mskqh	t1, a0, t1	# U : (stall on t1)
+	or	t0, t1, t1	# E : (stall on t1)
+
+	or	t1, t6, t6	# E :
+	cmpbge	zero, t6, t8	# E : (stall)
+	lda	t6, -1		# E : for masking just below
+	bne	t8, $u_final	# U : (stall)
+
+	mskql	t6, a1, t6		# U : mask out the bits we have
+	or	t6, t2, t2		# E :   already extracted before (stall)
+	cmpbge	zero, t2, t8		# E :   testing eos (stall)
+	bne	t8, $u_late_head_exit	# U : (stall)
+
+	/* Finally, we've got all the stupid leading edge cases taken care
+	   of and we can set up to enter the main loop.  */
+
+	stq_u	t1, 0(a0)	# L : store first output word
+	addq	a0, 8, a0	# E :
+	extql	t2, a1, t0	# U : position ho-bits of lo word
+	ldq_u	t2, 8(a1)	# U : read next high-order source word
+
+	addq	a1, 8, a1	# E :
+	cmpbge	zero, t2, t8	# E : (stall for t2)
+	nop			# E :
+	bne	t8, $u_eos	# U : (stall)
+
+	/* Unaligned copy main loop.  In order to avoid reading too much,
+	   the loop is structured to detect zeros in aligned source words.
+	   This has, unfortunately, effectively pulled half of a loop
+	   iteration out into the head and half into the tail, but it does
+	   prevent nastiness from accumulating in the very thing we want
+	   to run as fast as possible.
+
+	   On entry to this basic block:
+	   t0 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word
+
+	   We further know that t2 does not contain a null terminator.  */
+
+	.align 3
+$u_loop:
+	extqh	t2, a1, t1	# U : extract high bits for current word
+	addq	a1, 8, a1	# E : (stall)
+	extql	t2, a1, t3	# U : extract low bits for next time (stall)
+	addq	a0, 8, a0	# E :
+
+	or	t0, t1, t1	# E : current dst word now complete
+	ldq_u	t2, 0(a1)	# L : Latency=3 load high word for next time
+	stq_u	t1, -8(a0)	# L : save the current word (stall)
+	mov	t3, t0		# E :
+
+	cmpbge	zero, t2, t8	# E : test new word for eos
+	beq	t8, $u_loop	# U : (stall)
+	nop
+	nop
+
+	/* We've found a zero somewhere in the source word we just read.
+	   If it resides in the lower half, we have one (probably partial)
+	   word to write out, and if it resides in the upper half, we
+	   have one full and one partial word left to write out.
+
+	   On entry to this basic block:
+	   t0 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word.  */
+$u_eos:
+	extqh	t2, a1, t1	# U :
+	or	t0, t1, t1	# E : first (partial) source word complete (stall)
+	cmpbge	zero, t1, t8	# E : is the null in this first bit? (stall)
+	bne	t8, $u_final	# U : (stall)
+
+$u_late_head_exit:
+	stq_u	t1, 0(a0)	# L : the null was in the high-order bits
+	addq	a0, 8, a0	# E :
+	extql	t2, a1, t1	# U :
+	cmpbge	zero, t1, t8	# E : (stall)
+
+	/* Take care of a final (probably partial) result word.
+	   On entry to this basic block:
+	   t1 == assembled source word
+	   t8 == cmpbge mask that found the null.  */
+$u_final:
+	negq	t8, t6		# E : isolate low bit set
+	and	t6, t8, t12	# E : (stall)
+	and	t12, 0x80, t6	# E : avoid dest word load if we can (stall)
+	bne	t6, 1f		# U : (stall)
+
+	ldq_u	t0, 0(a0)	# E :
+	subq	t12, 1, t6	# E :
+	or	t6, t12, t8	# E : (stall)
+	zapnot	t1, t6, t1	# U : kill source bytes >= null (stall)
+
+	zap	t0, t8, t0	# U : kill dest bytes <= null (2 cycle data stall)
+	or	t0, t1, t1	# E : (stall)
+	nop
+	nop
+
+1:	stq_u	t1, 0(a0)	# L :
+	ret	(t9)		# L0 : Latency=3
+	nop
+	nop
+
+	/* Unaligned copy entry point.  */
+	.align 4
+$unaligned:
+
+	ldq_u	t1, 0(a1)	# L : load first source word
+	and	a0, 7, t4	# E : find dest misalignment
+	and	a1, 7, t5	# E : find src misalignment
+	/* Conditionally load the first destination word and a bytemask
+	   with 0xff indicating that the destination byte is sacrosanct.  */
+	mov	zero, t0	# E :
+
+	mov	zero, t6	# E :
+	beq	t4, 1f		# U :
+	ldq_u	t0, 0(a0)	# L :
+	lda	t6, -1		# E :
+
+	mskql	t6, a0, t6	# U :
+	nop
+	nop
+	nop
+1:
+	subq	a1, t4, a1	# E : sub dest misalignment from src addr
+	/* If source misalignment is larger than dest misalignment, we need
+	   extra startup checks to avoid SEGV.  */
+	cmplt	t4, t5, t12	# E :
+	beq	t12, $u_head	# U :
+	lda	t2, -1		# E : mask out leading garbage in source
+
+	mskqh	t2, t5, t2	# U :
+	ornot	t1, t2, t3	# E : (stall)
+	cmpbge	zero, t3, t8	# E : is there a zero? (stall)
+	beq	t8, $u_head	# U : (stall)
+
+	/* At this point we've found a zero in the first partial word of
+	   the source.  We need to isolate the valid source data and mask
+	   it into the original destination data.  (Incidentally, we know
+	   that we'll need at least one byte of that original dest word.) */
+
+	ldq_u	t0, 0(a0)	# L :
+	negq	t8, t6		# E : build bitmask of bytes <= zero
+	and	t6, t8, t12	# E : (stall)
+	and	a1, 7, t5	# E :
+
+	subq	t12, 1, t6	# E :
+	or	t6, t12, t8	# E : (stall)
+	srl	t12, t5, t12	# U : adjust final null return value
+	zapnot	t2, t8, t2	# U : prepare source word; mirror changes (stall)
+
+	and	t1, t2, t1	# E : to source validity mask
+	extql	t2, a1, t2	# U :
+	extql	t1, a1, t1	# U : (stall)
+	andnot	t0, t2, t0	# .. e1 : zero place for source to reside (stall)
+
+	or	t0, t1, t1	# e1    : and put it there
+	stq_u	t1, 0(a0)	# .. e0 : (stall)
+	ret	(t9)		# e1    :
+	nop
+
+	.end __stxcpy
+
diff --git a/arch/alpha/lib/ev6-stxncpy.S b/arch/alpha/lib/ev6-stxncpy.S
new file mode 100644
index 000000000..76da20528
--- /dev/null
+++ b/arch/alpha/lib/ev6-stxncpy.S
@@ -0,0 +1,398 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev6-stxncpy.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
+ *
+ * Copy no more than COUNT bytes of the null-terminated string from
+ * SRC to DST.
+ *
+ * This is an internal routine used by strncpy, stpncpy, and strncat.
+ * As such, it uses special linkage conventions to make implementation
+ * of these public functions more efficient.
+ *
+ * On input:
+ *	t9 = return address
+ *	a0 = DST
+ *	a1 = SRC
+ *	a2 = COUNT
+ *
+ * Furthermore, COUNT may not be zero.
+ *
+ * On output:
+ *	t0  = last word written
+ *	t10 = bitmask (with one bit set) indicating the byte position of
+ *	      the end of the range specified by COUNT
+ *	t12 = bitmask (with one bit set) indicating the last byte written
+ *	a0  = unaligned address of the last *word* written
+ *	a2  = the number of full words left in COUNT
+ *
+ * Furthermore, v0, a3-a5, t11, and $at are untouched.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+
+#include <asm/regdef.h>
+
+	.set noat
+	.set noreorder
+
+	.text
+
+/* There is a problem with either gdb (as of 4.16) or gas (as of 2.7) that
+   doesn't like putting the entry point for a procedure somewhere in the
+   middle of the procedure descriptor.  Work around this by putting the
+   aligned copy in its own procedure descriptor */
+
+
+	.ent stxncpy_aligned
+	.align 4
+stxncpy_aligned:
+	.frame sp, 0, t9, 0
+	.prologue 0
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == the first source word.  */
+
+	/* Create the 1st output word and detect 0's in the 1st input word.  */
+	lda	t2, -1		# E : build a mask against false zero
+	mskqh	t2, a1, t2	# U :   detection in the src word (stall)
+	mskqh	t1, a1, t3	# U :
+	ornot	t1, t2, t2	# E : (stall)
+
+	mskql	t0, a1, t0	# U : assemble the first output word
+	cmpbge	zero, t2, t8	# E : bits set iff null found
+	or	t0, t3, t0	# E : (stall)
+	beq	a2, $a_eoc	# U :
+
+	bne	t8, $a_eos	# U :
+	nop
+	nop
+	nop
+
+	/* On entry to this basic block:
+	   t0 == a source word not containing a null.  */
+
+	/*
+	 * nops here to:
+	 *	separate store quads from load quads
+	 *	limit of 1 bcond/quad to permit training
+	 */
+$a_loop:
+	stq_u	t0, 0(a0)	# L :
+	addq	a0, 8, a0	# E :
+	subq	a2, 1, a2	# E :
+	nop
+
+	ldq_u	t0, 0(a1)	# L :
+	addq	a1, 8, a1	# E :
+	cmpbge	zero, t0, t8	# E :
+	beq	a2, $a_eoc      # U :
+
+	beq	t8, $a_loop	# U :
+	nop
+	nop
+	nop
+
+	/* Take care of the final (partial) word store.  At this point
+	   the end-of-count bit is set in t8 iff it applies.
+
+	   On entry to this basic block we have:
+	   t0 == the source word containing the null
+	   t8 == the cmpbge mask that found it.  */
+
+$a_eos:
+	negq	t8, t12		# E : find low bit set
+	and	t8, t12, t12	# E : (stall)
+	/* For the sake of the cache, don't read a destination word
+	   if we're not going to need it.  */
+	and	t12, 0x80, t6	# E : (stall)
+	bne	t6, 1f		# U : (stall)
+
+	/* We're doing a partial word store and so need to combine
+	   our source and original destination words.  */
+	ldq_u	t1, 0(a0)	# L :
+	subq	t12, 1, t6	# E :
+	or	t12, t6, t8	# E : (stall)
+	zapnot	t0, t8, t0	# U : clear src bytes > null (stall)
+
+	zap	t1, t8, t1	# .. e1 : clear dst bytes <= null
+	or	t0, t1, t0	# e1    : (stall)
+	nop
+	nop
+
+1:	stq_u	t0, 0(a0)	# L :
+	ret	(t9)		# L0 : Latency=3
+	nop
+	nop
+
+	/* Add the end-of-count bit to the eos detection bitmask.  */
+$a_eoc:
+	or	t10, t8, t8	# E :
+	br	$a_eos		# L0 : Latency=3
+	nop
+	nop
+
+	.end stxncpy_aligned
+
+	.align 4
+	.ent __stxncpy
+	.globl __stxncpy
+__stxncpy:
+	.frame sp, 0, t9, 0
+	.prologue 0
+
+	/* Are source and destination co-aligned?  */
+	xor	a0, a1, t1	# E :
+	and	a0, 7, t0	# E : find dest misalignment
+	and	t1, 7, t1	# E : (stall)
+	addq	a2, t0, a2	# E : bias count by dest misalignment (stall)
+
+	subq	a2, 1, a2	# E :
+	and	a2, 7, t2	# E : (stall)
+	srl	a2, 3, a2	# U : a2 = loop counter = (count - 1)/8 (stall)
+	addq	zero, 1, t10	# E :
+
+	sll	t10, t2, t10	# U : t10 = bitmask of last count byte
+	bne	t1, $unaligned	# U :
+	/* We are co-aligned; take care of a partial first word.  */
+	ldq_u	t1, 0(a1)	# L : load first src word
+	addq	a1, 8, a1	# E :
+
+	beq	t0, stxncpy_aligned     # U : avoid loading dest word if not needed
+	ldq_u	t0, 0(a0)	# L :
+	nop
+	nop
+
+	br	stxncpy_aligned	# .. e1 :
+	nop
+	nop
+	nop
+
+
+
+/* The source and destination are not co-aligned.  Align the destination
+   and cope.  We have to be very careful about not reading too much and
+   causing a SEGV.  */
+
+	.align 4
+$u_head:
+	/* We know just enough now to be able to assemble the first
+	   full source word.  We can still find a zero at the end of it
+	   that prevents us from outputting the whole thing.
+
+	   On entry to this basic block:
+	   t0 == the first dest word, unmasked
+	   t1 == the shifted low bits of the first source word
+	   t6 == bytemask that is -1 in dest word bytes */
+
+	ldq_u	t2, 8(a1)	# L : Latency=3 load second src word
+	addq	a1, 8, a1	# E :
+	mskql	t0, a0, t0	# U : mask trailing garbage in dst
+	extqh	t2, a1, t4	# U : (3 cycle stall on t2)
+
+	or	t1, t4, t1	# E : first aligned src word complete (stall)
+	mskqh	t1, a0, t1	# U : mask leading garbage in src (stall)
+	or	t0, t1, t0	# E : first output word complete (stall)
+	or	t0, t6, t6	# E : mask original data for zero test (stall)
+
+	cmpbge	zero, t6, t8	# E :
+	beq	a2, $u_eocfin	# U :
+	lda	t6, -1		# E :
+	nop
+
+	bne	t8, $u_final	# U :
+	mskql	t6, a1, t6	# U : mask out bits already seen
+	stq_u	t0, 0(a0)	# L : store first output word
+	or      t6, t2, t2	# E : (stall)
+
+	cmpbge	zero, t2, t8	# E : find nulls in second partial
+	addq	a0, 8, a0	# E :
+	subq	a2, 1, a2	# E :
+	bne	t8, $u_late_head_exit	# U :
+
+	/* Finally, we've got all the stupid leading edge cases taken care
+	   of and we can set up to enter the main loop.  */
+	extql	t2, a1, t1	# U : position hi-bits of lo word
+	beq	a2, $u_eoc	# U :
+	ldq_u	t2, 8(a1)	# L : read next high-order source word
+	addq	a1, 8, a1	# E :
+
+	extqh	t2, a1, t0	# U : position lo-bits of hi word (stall)
+	cmpbge	zero, t2, t8	# E :
+	nop
+	bne	t8, $u_eos	# U :
+
+	/* Unaligned copy main loop.  In order to avoid reading too much,
+	   the loop is structured to detect zeros in aligned source words.
+	   This has, unfortunately, effectively pulled half of a loop
+	   iteration out into the head and half into the tail, but it does
+	   prevent nastiness from accumulating in the very thing we want
+	   to run as fast as possible.
+
+	   On entry to this basic block:
+	   t0 == the shifted low-order bits from the current source word
+	   t1 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word
+
+	   We further know that t2 does not contain a null terminator.  */
+
+	.align 4
+$u_loop:
+	or	t0, t1, t0	# E : current dst word now complete
+	subq	a2, 1, a2	# E : decrement word count
+	extql	t2, a1, t1	# U : extract low bits for next time
+	addq	a0, 8, a0	# E :
+
+	stq_u	t0, -8(a0)	# U : save the current word
+	beq	a2, $u_eoc	# U :
+	ldq_u	t2, 8(a1)	# U : Latency=3 load high word for next time
+	addq	a1, 8, a1	# E :
+
+	extqh	t2, a1, t0	# U : extract low bits (2 cycle stall)
+	cmpbge	zero, t2, t8	# E : test new word for eos
+	nop
+	beq	t8, $u_loop	# U :
+
+	/* We've found a zero somewhere in the source word we just read.
+	   If it resides in the lower half, we have one (probably partial)
+	   word to write out, and if it resides in the upper half, we
+	   have one full and one partial word left to write out.
+
+	   On entry to this basic block:
+	   t0 == the shifted low-order bits from the current source word
+	   t1 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word.  */
+$u_eos:
+	or	t0, t1, t0	# E : first (partial) source word complete
+	nop
+	cmpbge	zero, t0, t8	# E : is the null in this first bit? (stall)
+	bne	t8, $u_final	# U : (stall)
+
+	stq_u	t0, 0(a0)	# L : the null was in the high-order bits
+	addq	a0, 8, a0	# E :
+	subq	a2, 1, a2	# E :
+	nop
+
+$u_late_head_exit:
+	extql	t2, a1, t0	# U :
+	cmpbge	zero, t0, t8	# E :
+	or	t8, t10, t6	# E : (stall)
+	cmoveq	a2, t6, t8	# E : Latency=2, extra map slot (stall)
+
+	/* Take care of a final (probably partial) result word.
+	   On entry to this basic block:
+	   t0 == assembled source word
+	   t8 == cmpbge mask that found the null.  */
+$u_final:
+	negq	t8, t6		# E : isolate low bit set
+	and	t6, t8, t12	# E : (stall)
+	and	t12, 0x80, t6	# E : avoid dest word load if we can (stall)
+	bne	t6, 1f		# U : (stall)
+
+	ldq_u	t1, 0(a0)	# L :
+	subq	t12, 1, t6	# E :
+	or	t6, t12, t8	# E : (stall)
+	zapnot	t0, t8, t0	# U : kill source bytes > null
+
+	zap	t1, t8, t1	# U : kill dest bytes <= null
+	or	t0, t1, t0	# E : (stall)
+	nop
+	nop
+
+1:	stq_u	t0, 0(a0)	# L :
+	ret	(t9)		# L0 : Latency=3
+
+	  /* Got to end-of-count before end of string.  
+	     On entry to this basic block:
+	     t1 == the shifted high-order bits from the previous source word  */
+$u_eoc:
+	and	a1, 7, t6	# E : avoid final load if possible
+	sll	t10, t6, t6	# U : (stall)
+	and	t6, 0xff, t6	# E : (stall)
+	bne	t6, 1f		# U : (stall)
+
+	ldq_u	t2, 8(a1)	# L : load final src word
+	nop
+	extqh	t2, a1, t0	# U : extract low bits for last word (stall)
+	or	t1, t0, t1	# E : (stall)
+
+1:	cmpbge	zero, t1, t8	# E :
+	mov	t1, t0		# E :
+
+$u_eocfin:			# end-of-count, final word
+	or	t10, t8, t8	# E :
+	br	$u_final	# L0 : Latency=3
+
+	/* Unaligned copy entry point.  */
+	.align 4
+$unaligned:
+
+	ldq_u	t1, 0(a1)	# L : load first source word
+	and	a0, 7, t4	# E : find dest misalignment
+	and	a1, 7, t5	# E : find src misalignment
+	/* Conditionally load the first destination word and a bytemask
+	   with 0xff indicating that the destination byte is sacrosanct.  */
+	mov	zero, t0	# E :
+
+	mov	zero, t6	# E :
+	beq	t4, 1f		# U :
+	ldq_u	t0, 0(a0)	# L :
+	lda	t6, -1		# E :
+
+	mskql	t6, a0, t6	# U :
+	nop
+	nop
+	subq	a1, t4, a1	# E : sub dest misalignment from src addr
+
+	/* If source misalignment is larger than dest misalignment, we need
+	   extra startup checks to avoid SEGV.  */
+
+1:	cmplt	t4, t5, t12	# E :
+	extql	t1, a1, t1	# U : shift src into place
+	lda	t2, -1		# E : for creating masks later
+	beq	t12, $u_head	# U : (stall)
+
+	extql	t2, a1, t2	# U :
+	cmpbge	zero, t1, t8	# E : is there a zero?
+	andnot	t2, t6, t2	# E : dest mask for a single word copy
+	or	t8, t10, t5	# E : test for end-of-count too
+
+	cmpbge	zero, t2, t3	# E :
+	cmoveq	a2, t5, t8	# E : Latency=2, extra map slot
+	nop			# E : keep with cmoveq
+	andnot	t8, t3, t8	# E : (stall)
+
+	beq	t8, $u_head	# U :
+	/* At this point we've found a zero in the first partial word of
+	   the source.  We need to isolate the valid source data and mask
+	   it into the original destination data.  (Incidentally, we know
+	   that we'll need at least one byte of that original dest word.) */
+	ldq_u	t0, 0(a0)	# L :
+	negq	t8, t6		# E : build bitmask of bytes <= zero
+	mskqh	t1, t4, t1	# U :
+
+	and	t6, t8, t12	# E :
+	subq	t12, 1, t6	# E : (stall)
+	or	t6, t12, t8	# E : (stall)
+	zapnot	t2, t8, t2	# U : prepare source word; mirror changes (stall)
+
+	zapnot	t1, t8, t1	# U : to source validity mask
+	andnot	t0, t2, t0	# E : zero place for source to reside
+	or	t0, t1, t0	# E : and put it there (stall both t0, t1)
+	stq_u	t0, 0(a0)	# L : (stall)
+
+	ret	(t9)		# L0 : Latency=3
+	nop
+	nop
+	nop
+
+	.end __stxncpy
diff --git a/arch/alpha/lib/ev67-strcat.S b/arch/alpha/lib/ev67-strcat.S
new file mode 100644
index 000000000..ec3096a9e
--- /dev/null
+++ b/arch/alpha/lib/ev67-strcat.S
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev67-strcat.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Append a null-terminated string from SRC to DST.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ * Commentary: It seems bogus to walk the input string twice - once
+ * to determine the length, and then again while doing the copy.
+ * A significant (future) enhancement would be to only read the input
+ * string once.
+ */
+
+#include <asm/export.h>
+	.text
+
+	.align 4
+	.globl strcat
+	.ent strcat
+strcat:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# E : set up return value
+	/* Find the end of the string.  */
+	ldq_u   $1, 0($16)	# L : load first quadword (a0 may be misaligned)
+	lda     $2, -1		# E :
+	insqh   $2, $16, $2	# U :
+
+	andnot  $16, 7, $16	# E :
+	or      $2, $1, $1	# E :
+	cmpbge  $31, $1, $2	# E : bits set iff byte == 0
+	bne     $2, $found	# U :
+
+$loop:	ldq     $1, 8($16)	# L :
+	addq    $16, 8, $16	# E :
+	cmpbge  $31, $1, $2	# E :
+	beq     $2, $loop	# U :
+
+$found:	cttz	$2, $3		# U0 :
+	addq	$16, $3, $16	# E :
+	/* Now do the append.  */
+	mov	$26, $23	# E :
+	br	__stxcpy	# L0 :
+
+	.end strcat
+	EXPORT_SYMBOL(strcat)
diff --git a/arch/alpha/lib/ev67-strchr.S b/arch/alpha/lib/ev67-strchr.S
new file mode 100644
index 000000000..fbf89e0b6
--- /dev/null
+++ b/arch/alpha/lib/ev67-strchr.S
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev67-strchr.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Return the address of a given character within a null-terminated
+ * string, or null if it is not found.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+#include <asm/export.h>
+#include <asm/regdef.h>
+
+	.set noreorder
+	.set noat
+
+	.align 4
+	.globl strchr
+	.ent strchr
+strchr:
+	.frame sp, 0, ra
+	.prologue 0
+
+	ldq_u   t0, 0(a0)	# L : load first quadword Latency=3
+	and	a1, 0xff, t3	# E : 00000000000000ch
+	insbl	a1, 1, t5	# U : 000000000000ch00
+	insbl	a1, 7, a2	# U : ch00000000000000
+
+	insbl	t3, 6, a3	# U : 00ch000000000000
+	or	t5, t3, a1	# E : 000000000000chch
+	andnot  a0, 7, v0	# E : align our loop pointer
+	lda	t4, -1		# E : build garbage mask
+
+	mskqh	t4, a0, t4	# U : only want relevant part of first quad
+	or	a2, a3, a2	# E : chch000000000000
+	inswl	a1, 2, t5	# E : 00000000chch0000
+	inswl	a1, 4, a3	# E : 0000chch00000000
+
+	or	a1, a2, a1	# E : chch00000000chch
+	or	a3, t5, t5	# E : 0000chchchch0000
+	cmpbge  zero, t0, t2	# E : bits set iff byte == zero
+	cmpbge	zero, t4, t4	# E : bits set iff byte is garbage
+
+	/* This quad is _very_ serialized.  Lots of stalling happens */
+	or	t5, a1, a1	# E : chchchchchchchch
+	xor	t0, a1, t1	# E : make bytes == c zero
+	cmpbge  zero, t1, t3	# E : bits set iff byte == c
+	or	t2, t3, t0	# E : bits set iff char match or zero match
+
+	andnot	t0, t4, t0	# E : clear garbage bits
+	cttz	t0, a2		# U0 : speculative (in case we get a match)
+	nop			# E :
+	bne	t0, $found	# U :
+
+	/*
+	 * Yuk.  This loop is going to stall like crazy waiting for the
+	 * data to be loaded.  Not much can be done about it unless it's
+	 * unrolled multiple times - is that safe to do in kernel space?
+	 * Or would exception handling recovery code do the trick here?
+	 */
+$loop:	ldq	t0, 8(v0)	# L : Latency=3
+	addq	v0, 8, v0	# E :
+	xor	t0, a1, t1	# E :
+	cmpbge	zero, t0, t2	# E : bits set iff byte == 0
+
+	cmpbge	zero, t1, t3	# E : bits set iff byte == c
+	or	t2, t3, t0	# E :
+	cttz	t3, a2		# U0 : speculative (in case we get a match)
+	beq	t0, $loop	# U :
+
+$found:	negq    t0, t1		# E : clear all but least set bit
+	and     t0, t1, t0	# E :
+	and	t0, t3, t1	# E : bit set iff byte was the char
+	addq	v0, a2, v0	# E : Add in the bit number from above
+
+	cmoveq	t1, $31, v0	# E : Two mapping slots, latency = 2
+	nop
+	nop
+	ret			# L0 :
+
+	.end strchr
+	EXPORT_SYMBOL(strchr)
diff --git a/arch/alpha/lib/ev67-strlen.S b/arch/alpha/lib/ev67-strlen.S
new file mode 100644
index 000000000..b73106ffb
--- /dev/null
+++ b/arch/alpha/lib/ev67-strlen.S
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev67-strlen.S
+ * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Finds length of a 0-terminated string.  Optimized for the
+ * Alpha architecture:
+ *
+ *	- memory accessed as aligned quadwords only
+ *	- uses bcmpge to compare 8 bytes in parallel
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ */
+#include <asm/export.h>
+	.set noreorder
+	.set noat
+
+	.globl	strlen
+	.ent	strlen
+	.align 4
+strlen:
+	ldq_u	$1, 0($16)	# L : load first quadword ($16  may be misaligned)
+	lda	$2, -1($31)	# E :
+	insqh	$2, $16, $2	# U :
+	andnot	$16, 7, $0	# E :
+
+	or	$2, $1, $1	# E :
+	cmpbge	$31, $1, $2	# E : $2  <- bitmask: bit i == 1 <==> i-th byte == 0
+	nop			# E :
+	bne	$2, $found	# U :
+
+$loop:	ldq	$1, 8($0)	# L :
+	addq	$0, 8, $0	# E : addr += 8
+	cmpbge	$31, $1, $2	# E :
+	beq	$2, $loop	# U :
+
+$found:
+	cttz	$2, $3		# U0 :
+	addq	$0, $3, $0	# E :
+	subq	$0, $16, $0	# E :
+	ret	$31, ($26)	# L0 :
+
+	.end	strlen
+	EXPORT_SYMBOL(strlen)
diff --git a/arch/alpha/lib/ev67-strncat.S b/arch/alpha/lib/ev67-strncat.S
new file mode 100644
index 000000000..ceb0ca528
--- /dev/null
+++ b/arch/alpha/lib/ev67-strncat.S
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev67-strncat.S
+ * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
+ *
+ * Append no more than COUNT characters from the null-terminated string SRC
+ * to the null-terminated string DST.  Always null-terminate the new DST.
+ *
+ * This differs slightly from the semantics in libc in that we never write
+ * past count, whereas libc may write to count+1.  This follows the generic
+ * implementation in lib/string.c and is, IMHO, more sensible.
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ * Try not to change the actual algorithm if possible for consistency.
+ */
+
+#include <asm/export.h>
+	.text
+
+	.align 4
+	.globl strncat
+	.ent strncat
+strncat:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# set up return value
+	beq	$18, $zerocount	# U :
+	/* Find the end of the string.  */
+	ldq_u   $1, 0($16)	# L : load first quadword ($16 may be misaligned)
+	lda     $2, -1($31)	# E :
+
+	insqh   $2, $0, $2	# U :
+	andnot  $16, 7, $16	# E :
+	nop			# E :
+	or      $2, $1, $1	# E :
+
+	nop			# E :
+	nop			# E :
+	cmpbge  $31, $1, $2	# E : bits set iff byte == 0
+	bne     $2, $found	# U :
+
+$loop:	ldq     $1, 8($16)	# L :
+	addq    $16, 8, $16	# E :
+	cmpbge  $31, $1, $2	# E :
+	beq     $2, $loop	# U :
+
+$found:	cttz	$2, $3		# U0 :
+	addq	$16, $3, $16	# E :
+	nop			# E :
+	bsr	$23, __stxncpy	# L0 :/* Now do the append.  */
+
+	/* Worry about the null termination.  */
+
+	zapnot	$1, $27, $2	# U : was last byte a null?
+	cmplt	$27, $24, $5	# E : did we fill the buffer completely?
+	bne	$2, 0f		# U :
+	ret			# L0 :
+
+0:	or	$5, $18, $2	# E :
+	nop
+	bne	$2, 2f		# U :
+	and	$24, 0x80, $3	# E : no zero next byte
+
+	nop			# E :
+	bne	$3, 1f		# U :
+	/* Here there are bytes left in the current word.  Clear one.  */
+	addq	$24, $24, $24	# E : end-of-count bit <<= 1
+	nop			# E :
+
+2:	zap	$1, $24, $1	# U :
+	nop			# E :
+	stq_u	$1, 0($16)	# L :
+	ret			# L0 :
+
+1:	/* Here we must clear the first byte of the next DST word */
+	stb	$31, 8($16)	# L :
+	nop			# E :
+	nop			# E :
+	ret			# L0 :
+
+$zerocount:
+	nop			# E :
+	nop			# E :
+	nop			# E :
+	ret			# L0 :
+
+	.end strncat
+	EXPORT_SYMBOL(strncat)
diff --git a/arch/alpha/lib/ev67-strrchr.S b/arch/alpha/lib/ev67-strrchr.S
new file mode 100644
index 000000000..7f80e3985
--- /dev/null
+++ b/arch/alpha/lib/ev67-strrchr.S
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/ev67-strrchr.S
+ * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
+ *
+ * Finds length of a 0-terminated string.  Optimized for the
+ * Alpha architecture:
+ *
+ *	- memory accessed as aligned quadwords only
+ *	- uses bcmpge to compare 8 bytes in parallel
+ *
+ * Much of the information about 21264 scheduling/coding comes from:
+ *	Compiler Writer's Guide for the Alpha 21264
+ *	abbreviated as 'CWG' in other comments here
+ *	ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
+ * Scheduling notation:
+ *	E	- either cluster
+ *	U	- upper subcluster; U0 - subcluster U0; U1 - subcluster U1
+ *	L	- lower subcluster; L0 - subcluster L0; L1 - subcluster L1
+ */
+
+#include <asm/export.h>
+#include <asm/regdef.h>
+
+	.set noreorder
+	.set noat
+
+	.align 4
+	.ent strrchr
+	.globl strrchr
+strrchr:
+	.frame sp, 0, ra
+	.prologue 0
+
+	and	a1, 0xff, t2	# E : 00000000000000ch
+	insbl	a1, 1, t4	# U : 000000000000ch00
+	insbl	a1, 2, t5	# U : 0000000000ch0000
+	ldq_u   t0, 0(a0)	# L : load first quadword Latency=3
+
+	mov	zero, t6	# E : t6 is last match aligned addr
+	or	t2, t4, a1	# E : 000000000000chch
+	sll	t5, 8, t3	# U : 00000000ch000000
+	mov	zero, t8	# E : t8 is last match byte compare mask
+
+	andnot  a0, 7, v0	# E : align source addr
+	or	t5, t3, t3	# E : 00000000chch0000
+	sll	a1, 32, t2	# U : 0000chch00000000
+	sll	a1, 48, t4	# U : chch000000000000
+
+	or	t4, a1, a1	# E : chch00000000chch
+	or	t2, t3, t2	# E : 0000chchchch0000
+	or	a1, t2, a1	# E : chchchchchchchch
+	lda	t5, -1		# E : build garbage mask
+
+	cmpbge  zero, t0, t1	# E : bits set iff byte == zero
+	mskqh	t5, a0, t4	# E : Complete garbage mask
+	xor	t0, a1, t2	# E : make bytes == c zero
+	cmpbge	zero, t4, t4	# E : bits set iff byte is garbage
+
+	cmpbge  zero, t2, t3	# E : bits set iff byte == c
+	andnot	t1, t4, t1	# E : clear garbage from null test
+	andnot	t3, t4, t3	# E : clear garbage from char test
+	bne	t1, $eos	# U : did we already hit the terminator?
+
+	/* Character search main loop */
+$loop:
+	ldq	t0, 8(v0)	# L : load next quadword
+	cmovne	t3, v0, t6	# E : save previous comparisons match
+	nop			#   : Latency=2, extra map slot (keep nop with cmov)
+	nop
+
+	cmovne	t3, t3, t8	# E : Latency=2, extra map slot
+	nop			#   : keep with cmovne
+	addq	v0, 8, v0	# E :
+	xor	t0, a1, t2	# E :
+
+	cmpbge	zero, t0, t1	# E : bits set iff byte == zero
+	cmpbge	zero, t2, t3	# E : bits set iff byte == c
+	beq	t1, $loop	# U : if we havnt seen a null, loop
+	nop
+
+	/* Mask out character matches after terminator */
+$eos:
+	negq	t1, t4		# E : isolate first null byte match
+	and	t1, t4, t4	# E :
+	subq	t4, 1, t5	# E : build a mask of the bytes up to...
+	or	t4, t5, t4	# E : ... and including the null
+
+	and	t3, t4, t3	# E : mask out char matches after null
+	cmovne	t3, t3, t8	# E : save it, if match found Latency=2, extra map slot
+	nop			#   : Keep with cmovne
+	nop
+
+	cmovne	t3, v0, t6	# E :
+	nop			#   : Keep with cmovne
+	/* Locate the address of the last matched character */
+	ctlz	t8, t2		# U0 : Latency=3 (0x40 for t8=0)
+	nop
+
+	cmoveq	t8, 0x3f, t2	# E : Compensate for case when no match is seen
+	nop			# E : hide the cmov latency (2) behind ctlz latency
+	lda	t5, 0x3f($31)	# E :
+	subq	t5, t2, t5	# E : Normalize leading zero count
+
+	addq	t6, t5, v0	# E : and add to quadword address
+	ret			# L0 : Latency=3
+	nop
+	nop
+
+	.end strrchr
+	EXPORT_SYMBOL(strrchr)
diff --git a/arch/alpha/lib/fls.c b/arch/alpha/lib/fls.c
new file mode 100644
index 000000000..02e156776
--- /dev/null
+++ b/arch/alpha/lib/fls.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+/* 
+ * arch/alpha/lib/fls.c
+ */
+
+#include <linux/module.h>
+#include <linux/bitops.h>
+
+/* This is fls(x)-1, except zero is held to zero.  This allows most
+   efficient input into extbl, plus it allows easy handling of fls(0)=0.  */
+
+const unsigned char __flsm1_tab[256] = 
+{
+  0,
+  0,
+  1, 1,
+  2, 2, 2, 2,
+  3, 3, 3, 3, 3, 3, 3, 3,
+  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+
+  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+
+  6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+  6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+};
+
+EXPORT_SYMBOL(__flsm1_tab);
diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c
new file mode 100644
index 000000000..34fea4656
--- /dev/null
+++ b/arch/alpha/lib/fpreg.c
@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/lib/fpreg.c
+ *
+ * (C) Copyright 1998 Linus Torvalds
+ */
+
+#include <linux/compiler.h>
+#include <linux/export.h>
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+#define STT(reg,val)  asm volatile ("ftoit $f"#reg",%0" : "=r"(val));
+#else
+#define STT(reg,val)  asm volatile ("stt $f"#reg",%0" : "=m"(val));
+#endif
+
+unsigned long
+alpha_read_fp_reg (unsigned long reg)
+{
+	unsigned long val;
+
+	switch (reg) {
+	      case  0: STT( 0, val); break;
+	      case  1: STT( 1, val); break;
+	      case  2: STT( 2, val); break;
+	      case  3: STT( 3, val); break;
+	      case  4: STT( 4, val); break;
+	      case  5: STT( 5, val); break;
+	      case  6: STT( 6, val); break;
+	      case  7: STT( 7, val); break;
+	      case  8: STT( 8, val); break;
+	      case  9: STT( 9, val); break;
+	      case 10: STT(10, val); break;
+	      case 11: STT(11, val); break;
+	      case 12: STT(12, val); break;
+	      case 13: STT(13, val); break;
+	      case 14: STT(14, val); break;
+	      case 15: STT(15, val); break;
+	      case 16: STT(16, val); break;
+	      case 17: STT(17, val); break;
+	      case 18: STT(18, val); break;
+	      case 19: STT(19, val); break;
+	      case 20: STT(20, val); break;
+	      case 21: STT(21, val); break;
+	      case 22: STT(22, val); break;
+	      case 23: STT(23, val); break;
+	      case 24: STT(24, val); break;
+	      case 25: STT(25, val); break;
+	      case 26: STT(26, val); break;
+	      case 27: STT(27, val); break;
+	      case 28: STT(28, val); break;
+	      case 29: STT(29, val); break;
+	      case 30: STT(30, val); break;
+	      case 31: STT(31, val); break;
+	      default: return 0;
+	}
+	return val;
+}
+EXPORT_SYMBOL(alpha_read_fp_reg);
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+#define LDT(reg,val)  asm volatile ("itoft %0,$f"#reg : : "r"(val));
+#else
+#define LDT(reg,val)  asm volatile ("ldt $f"#reg",%0" : : "m"(val));
+#endif
+
+void
+alpha_write_fp_reg (unsigned long reg, unsigned long val)
+{
+	switch (reg) {
+	      case  0: LDT( 0, val); break;
+	      case  1: LDT( 1, val); break;
+	      case  2: LDT( 2, val); break;
+	      case  3: LDT( 3, val); break;
+	      case  4: LDT( 4, val); break;
+	      case  5: LDT( 5, val); break;
+	      case  6: LDT( 6, val); break;
+	      case  7: LDT( 7, val); break;
+	      case  8: LDT( 8, val); break;
+	      case  9: LDT( 9, val); break;
+	      case 10: LDT(10, val); break;
+	      case 11: LDT(11, val); break;
+	      case 12: LDT(12, val); break;
+	      case 13: LDT(13, val); break;
+	      case 14: LDT(14, val); break;
+	      case 15: LDT(15, val); break;
+	      case 16: LDT(16, val); break;
+	      case 17: LDT(17, val); break;
+	      case 18: LDT(18, val); break;
+	      case 19: LDT(19, val); break;
+	      case 20: LDT(20, val); break;
+	      case 21: LDT(21, val); break;
+	      case 22: LDT(22, val); break;
+	      case 23: LDT(23, val); break;
+	      case 24: LDT(24, val); break;
+	      case 25: LDT(25, val); break;
+	      case 26: LDT(26, val); break;
+	      case 27: LDT(27, val); break;
+	      case 28: LDT(28, val); break;
+	      case 29: LDT(29, val); break;
+	      case 30: LDT(30, val); break;
+	      case 31: LDT(31, val); break;
+	}
+}
+EXPORT_SYMBOL(alpha_write_fp_reg);
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+#define STS(reg,val)  asm volatile ("ftois $f"#reg",%0" : "=r"(val));
+#else
+#define STS(reg,val)  asm volatile ("sts $f"#reg",%0" : "=m"(val));
+#endif
+
+unsigned long
+alpha_read_fp_reg_s (unsigned long reg)
+{
+	unsigned long val;
+
+	switch (reg) {
+	      case  0: STS( 0, val); break;
+	      case  1: STS( 1, val); break;
+	      case  2: STS( 2, val); break;
+	      case  3: STS( 3, val); break;
+	      case  4: STS( 4, val); break;
+	      case  5: STS( 5, val); break;
+	      case  6: STS( 6, val); break;
+	      case  7: STS( 7, val); break;
+	      case  8: STS( 8, val); break;
+	      case  9: STS( 9, val); break;
+	      case 10: STS(10, val); break;
+	      case 11: STS(11, val); break;
+	      case 12: STS(12, val); break;
+	      case 13: STS(13, val); break;
+	      case 14: STS(14, val); break;
+	      case 15: STS(15, val); break;
+	      case 16: STS(16, val); break;
+	      case 17: STS(17, val); break;
+	      case 18: STS(18, val); break;
+	      case 19: STS(19, val); break;
+	      case 20: STS(20, val); break;
+	      case 21: STS(21, val); break;
+	      case 22: STS(22, val); break;
+	      case 23: STS(23, val); break;
+	      case 24: STS(24, val); break;
+	      case 25: STS(25, val); break;
+	      case 26: STS(26, val); break;
+	      case 27: STS(27, val); break;
+	      case 28: STS(28, val); break;
+	      case 29: STS(29, val); break;
+	      case 30: STS(30, val); break;
+	      case 31: STS(31, val); break;
+	      default: return 0;
+	}
+	return val;
+}
+EXPORT_SYMBOL(alpha_read_fp_reg_s);
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+#define LDS(reg,val)  asm volatile ("itofs %0,$f"#reg : : "r"(val));
+#else
+#define LDS(reg,val)  asm volatile ("lds $f"#reg",%0" : : "m"(val));
+#endif
+
+void
+alpha_write_fp_reg_s (unsigned long reg, unsigned long val)
+{
+	switch (reg) {
+	      case  0: LDS( 0, val); break;
+	      case  1: LDS( 1, val); break;
+	      case  2: LDS( 2, val); break;
+	      case  3: LDS( 3, val); break;
+	      case  4: LDS( 4, val); break;
+	      case  5: LDS( 5, val); break;
+	      case  6: LDS( 6, val); break;
+	      case  7: LDS( 7, val); break;
+	      case  8: LDS( 8, val); break;
+	      case  9: LDS( 9, val); break;
+	      case 10: LDS(10, val); break;
+	      case 11: LDS(11, val); break;
+	      case 12: LDS(12, val); break;
+	      case 13: LDS(13, val); break;
+	      case 14: LDS(14, val); break;
+	      case 15: LDS(15, val); break;
+	      case 16: LDS(16, val); break;
+	      case 17: LDS(17, val); break;
+	      case 18: LDS(18, val); break;
+	      case 19: LDS(19, val); break;
+	      case 20: LDS(20, val); break;
+	      case 21: LDS(21, val); break;
+	      case 22: LDS(22, val); break;
+	      case 23: LDS(23, val); break;
+	      case 24: LDS(24, val); break;
+	      case 25: LDS(25, val); break;
+	      case 26: LDS(26, val); break;
+	      case 27: LDS(27, val); break;
+	      case 28: LDS(28, val); break;
+	      case 29: LDS(29, val); break;
+	      case 30: LDS(30, val); break;
+	      case 31: LDS(31, val); break;
+	}
+}
+EXPORT_SYMBOL(alpha_write_fp_reg_s);
diff --git a/arch/alpha/lib/memchr.S b/arch/alpha/lib/memchr.S
new file mode 100644
index 000000000..c13d3eca2
--- /dev/null
+++ b/arch/alpha/lib/memchr.S
@@ -0,0 +1,165 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David Mosberger (davidm@cs.arizona.edu).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Finds characters in a memory area.  Optimized for the Alpha:
+
+      - memory accessed as aligned quadwords only
+      - uses cmpbge to compare 8 bytes in parallel
+      - does binary search to find 0 byte in last
+        quadword (HAKMEM needed 12 instructions to
+        do this instead of the 9 instructions that
+        binary search needs).
+
+For correctness consider that:
+
+      - only minimum number of quadwords may be accessed
+      - the third argument is an unsigned long
+*/
+#include <asm/export.h>
+        .set noreorder
+        .set noat
+
+	.globl memchr
+	.ent memchr
+memchr:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	# Hack -- if someone passes in (size_t)-1, hoping to just
+	# search til the end of the address space, we will overflow
+	# below when we find the address of the last byte.  Given
+	# that we will never have a 56-bit address space, cropping
+	# the length is the easiest way to avoid trouble.
+	zap	$18, 0x80, $5	#-e0	:
+
+	beq	$18, $not_found	# .. e1 :
+        ldq_u   $1, 0($16)	# e1	: load first quadword
+	insbl	$17, 1, $2	# .. e0 : $2 = 000000000000ch00
+	and	$17, 0xff, $17	#-e0    : $17 = 00000000000000ch
+	cmpult	$18, 9, $4	# .. e1 :
+	or	$2, $17, $17	# e0    : $17 = 000000000000chch
+        lda     $3, -1($31)	# .. e1 :
+	sll	$17, 16, $2	#-e0    : $2 = 00000000chch0000
+	addq	$16, $5, $5	# .. e1 :
+	or	$2, $17, $17	# e1    : $17 = 00000000chchchch
+	unop			#	:
+	sll	$17, 32, $2	#-e0    : $2 = chchchch00000000
+	or	$2, $17, $17	# e1	: $17 = chchchchchchchch
+	extql	$1, $16, $7	# e0    : 
+	beq	$4, $first_quad	# .. e1 :
+
+	ldq_u	$6, -1($5)	#-e1	: eight or less bytes to search
+	extqh	$6, $16, $6	# .. e0 :
+	mov	$16, $0		# e0	:
+	or	$7, $6, $1	# .. e1 : $1 = quadword starting at $16
+
+	# Deal with the case where at most 8 bytes remain to be searched
+	# in $1.  E.g.:
+	#	$18 = 6
+	#	$1 = ????c6c5c4c3c2c1
+$last_quad:
+	negq	$18, $6		#-e0	:
+        xor	$17, $1, $1	# .. e1 :
+	srl	$3, $6, $6	# e0    : $6 = mask of $18 bits set
+        cmpbge  $31, $1, $2	# .. e1 :
+	and	$2, $6, $2	#-e0	:
+        beq     $2, $not_found	# .. e1 :
+
+$found_it:
+	# Now, determine which byte matched:
+        negq    $2, $3		# e0	:
+        and     $2, $3, $2	# e1	:
+
+        and     $2, 0x0f, $1	#-e0	:
+        addq    $0, 4, $3	# .. e1 :
+        cmoveq  $1, $3, $0	# e0	:
+
+        addq    $0, 2, $3	# .. e1 :
+        and     $2, 0x33, $1	#-e0	:
+        cmoveq  $1, $3, $0	# .. e1 :
+
+        and     $2, 0x55, $1	# e0	:
+        addq    $0, 1, $3	# .. e1 :
+        cmoveq  $1, $3, $0	#-e0	:
+
+$done:	ret			# .. e1 :
+
+	# Deal with the case where $18 > 8 bytes remain to be
+	# searched.  $16 may not be aligned.
+	.align 4
+$first_quad:
+	andnot	$16, 0x7, $0	#-e1	:
+        insqh   $3, $16, $2	# .. e0	: $2 = 0000ffffffffffff ($16<0:2> ff)
+        xor	$1, $17, $1	# e0	:
+	or	$1, $2, $1	# e1	: $1 = ====ffffffffffff
+        cmpbge  $31, $1, $2	#-e0	:
+        bne     $2, $found_it	# .. e1 :
+
+	# At least one byte left to process.
+
+	ldq	$1, 8($0)	# e0	:
+	subq	$5, 1, $18	# .. e1 :
+	addq	$0, 8, $0	#-e0	:
+
+	# Make $18 point to last quad to be accessed (the
+	# last quad may or may not be partial).
+
+	andnot	$18, 0x7, $18	# .. e1 :
+	cmpult	$0, $18, $2	# e0	:
+	beq	$2, $final	# .. e1 :
+
+	# At least two quads remain to be accessed.
+
+	subq	$18, $0, $4	#-e0	: $4 <- nr quads to be processed
+	and	$4, 8, $4	# e1	: odd number of quads?
+	bne	$4, $odd_quad_count # e1 :
+
+	# At least three quads remain to be accessed
+
+	mov	$1, $4		# e0	: move prefetched value to correct reg
+
+	.align	4
+$unrolled_loop:
+	ldq	$1, 8($0)	#-e0	: prefetch $1
+	xor	$17, $4, $2	# .. e1 :
+	cmpbge	$31, $2, $2	# e0	:
+	bne	$2, $found_it	# .. e1 :
+
+	addq	$0, 8, $0	#-e0	:
+$odd_quad_count:
+	xor	$17, $1, $2	# .. e1 :
+	ldq	$4, 8($0)	# e0	: prefetch $4
+	cmpbge	$31, $2, $2	# .. e1 :
+	addq	$0, 8, $6	#-e0	:
+	bne	$2, $found_it	# .. e1	:
+
+	cmpult	$6, $18, $6	# e0	:
+	addq	$0, 8, $0	# .. e1 :
+	bne	$6, $unrolled_loop #-e1 :
+
+	mov	$4, $1		# e0	: move prefetched value into $1
+$final:	subq	$5, $0, $18	# .. e1	: $18 <- number of bytes left to do
+	bne	$18, $last_quad	# e1	:
+
+$not_found:
+	mov	$31, $0		#-e0	:
+	ret			# .. e1 :
+
+        .end memchr
+	EXPORT_SYMBOL(memchr)
diff --git a/arch/alpha/lib/memcpy.c b/arch/alpha/lib/memcpy.c
new file mode 100644
index 000000000..cbac3dc6d
--- /dev/null
+++ b/arch/alpha/lib/memcpy.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/lib/memcpy.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+/*
+ * This is a reasonably optimized memcpy() routine.
+ */
+
+/*
+ * Note that the C code is written to be optimized into good assembly. However,
+ * at this point gcc is unable to sanely compile "if (n >= 0)", resulting in a
+ * explicit compare against 0 (instead of just using the proper "blt reg, xx" or
+ * "bge reg, xx"). I hope alpha-gcc will be fixed to notice this eventually..
+ */
+
+#include <linux/types.h>
+#include <linux/export.h>
+
+/*
+ * This should be done in one go with ldq_u*2/mask/stq_u. Do it
+ * with a macro so that we can fix it up later..
+ */
+#define ALIGN_DEST_TO8_UP(d,s,n) \
+	while (d & 7) { \
+		if (n <= 0) return; \
+		n--; \
+		*(char *) d = *(char *) s; \
+		d++; s++; \
+	}
+#define ALIGN_DEST_TO8_DN(d,s,n) \
+	while (d & 7) { \
+		if (n <= 0) return; \
+		n--; \
+		d--; s--; \
+		*(char *) d = *(char *) s; \
+	}
+
+/*
+ * This should similarly be done with ldq_u*2/mask/stq. The destination
+ * is aligned, but we don't fill in a full quad-word
+ */
+#define DO_REST_UP(d,s,n) \
+	while (n > 0) { \
+		n--; \
+		*(char *) d = *(char *) s; \
+		d++; s++; \
+	}
+#define DO_REST_DN(d,s,n) \
+	while (n > 0) { \
+		n--; \
+		d--; s--; \
+		*(char *) d = *(char *) s; \
+	}
+
+/*
+ * This should be done with ldq/mask/stq. The source and destination are
+ * aligned, but we don't fill in a full quad-word
+ */
+#define DO_REST_ALIGNED_UP(d,s,n) DO_REST_UP(d,s,n)
+#define DO_REST_ALIGNED_DN(d,s,n) DO_REST_DN(d,s,n)
+
+/*
+ * This does unaligned memory copies. We want to avoid storing to
+ * an unaligned address, as that would do a read-modify-write cycle.
+ * We also want to avoid double-reading the unaligned reads.
+ *
+ * Note the ordering to try to avoid load (and address generation) latencies.
+ */
+static inline void __memcpy_unaligned_up (unsigned long d, unsigned long s,
+					  long n)
+{
+	ALIGN_DEST_TO8_UP(d,s,n);
+	n -= 8;			/* to avoid compare against 8 in the loop */
+	if (n >= 0) {
+		unsigned long low_word, high_word;
+		__asm__("ldq_u %0,%1":"=r" (low_word):"m" (*(unsigned long *) s));
+		do {
+			unsigned long tmp;
+			__asm__("ldq_u %0,%1":"=r" (high_word):"m" (*(unsigned long *)(s+8)));
+			n -= 8;
+			__asm__("extql %1,%2,%0"
+				:"=r" (low_word)
+				:"r" (low_word), "r" (s));
+			__asm__("extqh %1,%2,%0"
+				:"=r" (tmp)
+				:"r" (high_word), "r" (s));
+			s += 8;
+			*(unsigned long *) d = low_word | tmp;
+			d += 8;
+			low_word = high_word;
+		} while (n >= 0);
+	}
+	n += 8;
+	DO_REST_UP(d,s,n);
+}
+
+static inline void __memcpy_unaligned_dn (unsigned long d, unsigned long s,
+					  long n)
+{
+	/* I don't understand AXP assembler well enough for this. -Tim */
+	s += n;
+	d += n;
+	while (n--)
+		* (char *) --d = * (char *) --s;
+}
+
+/*
+ * Hmm.. Strange. The __asm__ here is there to make gcc use an integer register
+ * for the load-store. I don't know why, but it would seem that using a floating
+ * point register for the move seems to slow things down (very small difference,
+ * though).
+ *
+ * Note the ordering to try to avoid load (and address generation) latencies.
+ */
+static inline void __memcpy_aligned_up (unsigned long d, unsigned long s,
+					long n)
+{
+	ALIGN_DEST_TO8_UP(d,s,n);
+	n -= 8;
+	while (n >= 0) {
+		unsigned long tmp;
+		__asm__("ldq %0,%1":"=r" (tmp):"m" (*(unsigned long *) s));
+		n -= 8;
+		s += 8;
+		*(unsigned long *) d = tmp;
+		d += 8;
+	}
+	n += 8;
+	DO_REST_ALIGNED_UP(d,s,n);
+}
+static inline void __memcpy_aligned_dn (unsigned long d, unsigned long s,
+					long n)
+{
+	s += n;
+	d += n;
+	ALIGN_DEST_TO8_DN(d,s,n);
+	n -= 8;
+	while (n >= 0) {
+		unsigned long tmp;
+		s -= 8;
+		__asm__("ldq %0,%1":"=r" (tmp):"m" (*(unsigned long *) s));
+		n -= 8;
+		d -= 8;
+		*(unsigned long *) d = tmp;
+	}
+	n += 8;
+	DO_REST_ALIGNED_DN(d,s,n);
+}
+
+void * memcpy(void * dest, const void *src, size_t n)
+{
+	if (!(((unsigned long) dest ^ (unsigned long) src) & 7)) {
+		__memcpy_aligned_up ((unsigned long) dest, (unsigned long) src,
+				     n);
+		return dest;
+	}
+	__memcpy_unaligned_up ((unsigned long) dest, (unsigned long) src, n);
+	return dest;
+}
+EXPORT_SYMBOL(memcpy);
diff --git a/arch/alpha/lib/memmove.S b/arch/alpha/lib/memmove.S
new file mode 100644
index 000000000..42d1922d0
--- /dev/null
+++ b/arch/alpha/lib/memmove.S
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/memmove.S
+ *
+ * Barely optimized memmove routine for Alpha EV5.
+ *
+ * This is hand-massaged output from the original memcpy.c.  We defer to
+ * memcpy whenever possible; the backwards copy loops are not unrolled.
+ */
+#include <asm/export.h>        
+	.set noat
+	.set noreorder
+	.text
+
+	.align 4
+	.globl memmove
+	.ent memmove
+memmove:
+	ldgp $29, 0($27)
+	unop
+	nop
+	.prologue 1
+
+	addq $16,$18,$4
+	addq $17,$18,$5
+	cmpule $4,$17,$1		/*  dest + n <= src  */
+	cmpule $5,$16,$2		/*  dest >= src + n  */
+
+	bis $1,$2,$1
+	mov $16,$0
+	xor $16,$17,$2
+	bne $1,memcpy			!samegp
+
+	and $2,7,$2			/* Test for src/dest co-alignment.  */
+	and $16,7,$1
+	cmpule $16,$17,$3
+	bne $3,$memmove_up		/* dest < src */
+
+	and $4,7,$1
+	bne $2,$misaligned_dn
+	unop
+	beq $1,$skip_aligned_byte_loop_head_dn
+
+$aligned_byte_loop_head_dn:
+	lda $4,-1($4)
+	lda $5,-1($5)
+	unop
+	ble $18,$egress
+
+	ldq_u $3,0($5)
+	ldq_u $2,0($4)
+	lda $18,-1($18)
+	extbl $3,$5,$1
+
+	insbl $1,$4,$1
+	mskbl $2,$4,$2
+	bis $1,$2,$1
+	and $4,7,$6
+
+	stq_u $1,0($4)
+	bne $6,$aligned_byte_loop_head_dn
+
+$skip_aligned_byte_loop_head_dn:
+	lda $18,-8($18)
+	blt $18,$skip_aligned_word_loop_dn
+
+$aligned_word_loop_dn:
+	ldq $1,-8($5)
+	nop
+	lda $5,-8($5)
+	lda $18,-8($18)
+
+	stq $1,-8($4)
+	nop
+	lda $4,-8($4)
+	bge $18,$aligned_word_loop_dn
+
+$skip_aligned_word_loop_dn:
+	lda $18,8($18)
+	bgt $18,$byte_loop_tail_dn
+	unop
+	ret $31,($26),1
+
+	.align 4
+$misaligned_dn:
+	nop
+	fnop
+	unop
+	beq $18,$egress
+
+$byte_loop_tail_dn:
+	ldq_u $3,-1($5)
+	ldq_u $2,-1($4)
+	lda $5,-1($5)
+	lda $4,-1($4)
+
+	lda $18,-1($18)
+	extbl $3,$5,$1
+	insbl $1,$4,$1
+	mskbl $2,$4,$2
+
+	bis $1,$2,$1
+	stq_u $1,0($4)
+	bgt $18,$byte_loop_tail_dn
+	br $egress
+
+$memmove_up:
+	mov $16,$4
+	mov $17,$5
+	bne $2,$misaligned_up
+	beq $1,$skip_aligned_byte_loop_head_up
+
+$aligned_byte_loop_head_up:
+	unop
+	ble $18,$egress
+	ldq_u $3,0($5)
+	ldq_u $2,0($4)
+
+	lda $18,-1($18)
+	extbl $3,$5,$1
+	insbl $1,$4,$1
+	mskbl $2,$4,$2
+
+	bis $1,$2,$1
+	lda $5,1($5)
+	stq_u $1,0($4)
+	lda $4,1($4)
+
+	and $4,7,$6
+	bne $6,$aligned_byte_loop_head_up
+
+$skip_aligned_byte_loop_head_up:
+	lda $18,-8($18)
+	blt $18,$skip_aligned_word_loop_up
+
+$aligned_word_loop_up:
+	ldq $1,0($5)
+	nop
+	lda $5,8($5)
+	lda $18,-8($18)
+
+	stq $1,0($4)
+	nop
+	lda $4,8($4)
+	bge $18,$aligned_word_loop_up
+
+$skip_aligned_word_loop_up:
+	lda $18,8($18)
+	bgt $18,$byte_loop_tail_up
+	unop
+	ret $31,($26),1
+
+	.align 4
+$misaligned_up:
+	nop
+	fnop
+	unop
+	beq $18,$egress
+
+$byte_loop_tail_up:
+	ldq_u $3,0($5)
+	ldq_u $2,0($4)
+	lda $18,-1($18)
+	extbl $3,$5,$1
+
+	insbl $1,$4,$1
+	mskbl $2,$4,$2
+	bis $1,$2,$1
+	stq_u $1,0($4)
+
+	lda $5,1($5)
+	lda $4,1($4)
+	nop
+	bgt $18,$byte_loop_tail_up
+
+$egress:
+	ret $31,($26),1
+	nop
+	nop
+	nop
+
+	.end memmove
+	EXPORT_SYMBOL(memmove)
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S
new file mode 100644
index 000000000..00393e30d
--- /dev/null
+++ b/arch/alpha/lib/memset.S
@@ -0,0 +1,133 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/arch/alpha/lib/memset.S
+ *
+ * This is an efficient (and small) implementation of the C library "memset()"
+ * function for the alpha.
+ *
+ *	(C) Copyright 1996 Linus Torvalds
+ *
+ * This routine is "moral-ware": you are free to use it any way you wish, and
+ * the only obligation I put on you is a moral one: if you make any improvements
+ * to the routine, please send me your improvements for me to use similarly.
+ *
+ * The scheduling comments are according to the EV5 documentation (and done by 
+ * hand, so they might well be incorrect, please do tell me about it..)
+ */
+#include <asm/export.h>
+	.set noat
+	.set noreorder
+.text
+	.globl memset
+	.globl __memset
+	.globl ___memset
+	.globl __memset16
+	.globl __constant_c_memset
+
+	.ent ___memset
+.align 5
+___memset:
+	.frame $30,0,$26,0
+	.prologue 0
+
+	and $17,255,$1		/* E1 */
+	insbl $17,1,$17		/* .. E0 */
+	bis $17,$1,$17		/* E0 (p-c latency, next cycle) */
+	sll $17,16,$1		/* E1 (p-c latency, next cycle) */
+
+	bis $17,$1,$17		/* E0 (p-c latency, next cycle) */
+	sll $17,32,$1		/* E1 (p-c latency, next cycle) */
+	bis $17,$1,$17		/* E0 (p-c latency, next cycle) */
+	ldq_u $31,0($30)	/* .. E1 */
+
+.align 5
+__constant_c_memset:
+	addq $18,$16,$6		/* E0 */
+	bis $16,$16,$0		/* .. E1 */
+	xor $16,$6,$1		/* E0 */
+	ble $18,end		/* .. E1 */
+
+	bic $1,7,$1		/* E0 */
+	beq $1,within_one_quad	/* .. E1 (note EV5 zero-latency forwarding) */
+	and $16,7,$3		/* E0 */
+	beq $3,aligned		/* .. E1 (note EV5 zero-latency forwarding) */
+
+	ldq_u $4,0($16)		/* E0 */
+	bis $16,$16,$5		/* .. E1 */
+	insql $17,$16,$2	/* E0 */
+	subq $3,8,$3		/* .. E1 */
+
+	addq $18,$3,$18		/* E0	$18 is new count ($3 is negative) */
+	mskql $4,$16,$4		/* .. E1 (and possible load stall) */
+	subq $16,$3,$16		/* E0 	$16 is new aligned destination */
+	bis $2,$4,$1		/* .. E1 */
+
+	bis $31,$31,$31		/* E0 */
+	ldq_u $31,0($30)	/* .. E1 */
+	stq_u $1,0($5)		/* E0 */
+	bis $31,$31,$31		/* .. E1 */
+
+.align 4
+aligned:
+	sra $18,3,$3		/* E0 */
+	and $18,7,$18		/* .. E1 */
+	bis $16,$16,$5		/* E0 */
+	beq $3,no_quad		/* .. E1 */
+
+.align 3
+loop:
+	stq $17,0($5)		/* E0 */
+	subq $3,1,$3		/* .. E1 */
+	addq $5,8,$5		/* E0 */
+	bne $3,loop		/* .. E1 */
+
+no_quad:
+	bis $31,$31,$31		/* E0 */
+	beq $18,end		/* .. E1 */
+	ldq $7,0($5)		/* E0 */
+	mskqh $7,$6,$2		/* .. E1 (and load stall) */
+
+	insqh $17,$6,$4		/* E0 */
+	bis $2,$4,$1		/* .. E1 */
+	stq $1,0($5)		/* E0 */
+	ret $31,($26),1		/* .. E1 */
+
+.align 3
+within_one_quad:
+	ldq_u $1,0($16)		/* E0 */
+	insql $17,$16,$2	/* E1 */
+	mskql $1,$16,$4		/* E0 (after load stall) */
+	bis $2,$4,$2		/* E0 */
+
+	mskql $2,$6,$4		/* E0 */
+	mskqh $1,$6,$2		/* .. E1 */
+	bis $2,$4,$1		/* E0 */
+	stq_u $1,0($16)		/* E0 */
+
+end:
+	ret $31,($26),1		/* E1 */
+	.end ___memset
+EXPORT_SYMBOL(___memset)
+EXPORT_SYMBOL(__constant_c_memset)
+
+	.align 5
+	.ent __memset16
+__memset16:
+	.prologue 0
+
+	inswl $17,0,$1		/* E0 */
+	inswl $17,2,$2		/* E0 */
+	inswl $17,4,$3		/* E0 */
+	or $1,$2,$1		/* .. E1 */
+	inswl $17,6,$4		/* E0 */
+	or $1,$3,$1		/* .. E1 */
+	or $1,$4,$17		/* E0 */
+	br __constant_c_memset	/* .. E1 */
+
+	.end __memset16
+EXPORT_SYMBOL(__memset16)
+
+memset = ___memset
+__memset = ___memset
+	EXPORT_SYMBOL(memset)
+	EXPORT_SYMBOL(__memset)
diff --git a/arch/alpha/lib/srm_printk.c b/arch/alpha/lib/srm_printk.c
new file mode 100644
index 000000000..6276eed76
--- /dev/null
+++ b/arch/alpha/lib/srm_printk.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	arch/alpha/lib/srm_printk.c
+ */
+
+#include <linux/kernel.h>
+#include <asm/console.h>
+
+long
+srm_printk(const char *fmt, ...)
+{
+	static char buf[1024];
+	va_list args;
+	long len, num_lf;
+	char *src, *dst;
+
+	va_start(args, fmt);
+	len = vsprintf(buf, fmt, args);
+	va_end(args);
+
+	/* count number of linefeeds in string: */
+
+	num_lf = 0;
+	for (src = buf; *src; ++src) {
+		if (*src == '\n') {
+			++num_lf;
+		}
+	}
+
+	if (num_lf) {
+		/* expand each linefeed into carriage-return/linefeed: */
+		for (dst = src + num_lf; src >= buf; ) {
+			if (*src == '\n') {
+				*dst-- = '\r';
+			}
+			*dst-- = *src--;
+		}
+	}
+
+	srm_puts(buf, num_lf+len);	
+        return len;
+}
diff --git a/arch/alpha/lib/srm_puts.c b/arch/alpha/lib/srm_puts.c
new file mode 100644
index 000000000..df7991f6f
--- /dev/null
+++ b/arch/alpha/lib/srm_puts.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	arch/alpha/lib/srm_puts.c
+ */
+
+#include <linux/string.h>
+#include <asm/console.h>
+
+long
+srm_puts(const char *str, long len)
+{
+	long remaining, written;
+
+	if (!callback_init_done)
+		return len;
+
+	for (remaining = len; remaining > 0; remaining -= written)
+	{
+		written = callback_puts(0, str, remaining);
+		written &= 0xffffffff;
+		str += written;
+	}
+	return len;
+}
diff --git a/arch/alpha/lib/stacktrace.c b/arch/alpha/lib/stacktrace.c
new file mode 100644
index 000000000..62454a781
--- /dev/null
+++ b/arch/alpha/lib/stacktrace.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/kernel.h>
+
+typedef unsigned int instr;
+
+#define MAJOR_OP	0xfc000000
+#define LDA_OP		0x20000000
+#define STQ_OP		0xb4000000
+#define BR_OP		0xc0000000
+
+#define STK_ALLOC_1	0x23de8000 /* lda $30,-X($30) */
+#define STK_ALLOC_1M	0xffff8000
+#define STK_ALLOC_2	0x43c0153e /* subq $30,X,$30 */
+#define STK_ALLOC_2M	0xffe01fff
+
+#define MEM_REG		0x03e00000
+#define MEM_BASE	0x001f0000
+#define MEM_OFF		0x0000ffff
+#define MEM_OFF_SIGN	0x00008000
+#define	BASE_SP		0x001e0000
+
+#define STK_ALLOC_MATCH(INSTR)			\
+  (((INSTR) & STK_ALLOC_1M) == STK_ALLOC_1	\
+   || ((INSTR) & STK_ALLOC_2M) == STK_ALLOC_2)
+#define STK_PUSH_MATCH(INSTR) \
+  (((INSTR) & (MAJOR_OP | MEM_BASE | MEM_OFF_SIGN)) == (STQ_OP | BASE_SP))
+#define MEM_OP_OFFSET(INSTR) \
+  (((long)((INSTR) & MEM_OFF) << 48) >> 48)
+#define MEM_OP_REG(INSTR) \
+  (((INSTR) & MEM_REG) >> 22)
+
+/* Branches, jumps, PAL calls, and illegal opcodes end a basic block. */
+#define BB_END(INSTR)						\
+  (((instr)(INSTR) >= BR_OP) | ((instr)(INSTR) < LDA_OP) |	\
+   ((((instr)(INSTR) ^ 0x60000000) < 0x20000000) &		\
+    (((instr)(INSTR) & 0x0c000000) != 0)))
+
+#define IS_KERNEL_TEXT(PC) ((unsigned long)(PC) > START_ADDR)
+
+static char reg_name[][4] = {
+	"v0 ", "t0 ", "t1 ", "t2 ", "t3 ", "t4 ", "t5 ", "t6 ", "t7 ",
+	"s0 ", "s1 ", "s2 ", "s3 ", "s4 ", "s5 ", "s6 ", "a0 ", "a1 ",
+	"a2 ", "a3 ", "a4 ", "a5 ", "t8 ", "t9 ", "t10", "t11", "ra ",
+	"pv ", "at ", "gp ", "sp ", "0"
+};
+
+
+static instr *
+display_stored_regs(instr * pro_pc, unsigned char * sp)
+{
+	instr * ret_pc = 0;
+	int reg;
+	unsigned long value;
+
+	printk("Prologue [<%p>], Frame %p:\n", pro_pc, sp);
+	while (!BB_END(*pro_pc))
+		if (STK_PUSH_MATCH(*pro_pc)) {
+			reg = (*pro_pc & MEM_REG) >> 21;
+			value = *(unsigned long *)(sp + (*pro_pc & MEM_OFF));
+			if (reg == 26)
+				ret_pc = (instr *)value;
+			printk("\t\t%s / 0x%016lx\n", reg_name[reg], value);
+		}
+	return ret_pc;
+}
+
+static instr *
+seek_prologue(instr * pc)
+{
+	while (!STK_ALLOC_MATCH(*pc))
+		--pc;
+	while (!BB_END(*(pc - 1)))
+		--pc;
+	return pc;
+}
+
+static long
+stack_increment(instr * prologue_pc)
+{
+	while (!STK_ALLOC_MATCH(*prologue_pc))
+		++prologue_pc;
+
+	/* Count the bytes allocated. */
+	if ((*prologue_pc & STK_ALLOC_1M) == STK_ALLOC_1M)
+		return -(((long)(*prologue_pc) << 48) >> 48);
+	else
+		return (*prologue_pc >> 13) & 0xff;
+}
+
+void
+stacktrace(void)
+{
+	instr * ret_pc;
+	instr * prologue = (instr *)stacktrace;
+	register unsigned char * sp __asm__ ("$30");
+
+	printk("\tstack trace:\n");
+	do {
+		ret_pc = display_stored_regs(prologue, sp);
+		sp += stack_increment(prologue);
+		prologue = seek_prologue(ret_pc);
+	} while (IS_KERNEL_TEXT(ret_pc));
+}
diff --git a/arch/alpha/lib/strcat.S b/arch/alpha/lib/strcat.S
new file mode 100644
index 000000000..055877dcc
--- /dev/null
+++ b/arch/alpha/lib/strcat.S
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strcat.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Append a null-terminated string from SRC to DST.
+ */
+#include <asm/export.h>
+
+	.text
+
+	.align 3
+	.globl strcat
+	.ent strcat
+strcat:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# set up return value
+
+	/* Find the end of the string.  */
+
+	ldq_u   $1, 0($16)	# load first quadword (a0 may be misaligned)
+	lda     $2, -1
+	insqh   $2, $16, $2
+	andnot  $16, 7, $16
+	or      $2, $1, $1
+	cmpbge  $31, $1, $2	# bits set iff byte == 0
+	bne     $2, $found
+
+$loop:	ldq     $1, 8($16)
+	addq    $16, 8, $16
+	cmpbge  $31, $1, $2
+	beq     $2, $loop
+
+$found:	negq    $2, $3		# clear all but least set bit
+	and     $2, $3, $2
+
+	and     $2, 0xf0, $3	# binary search for that set bit
+	and	$2, 0xcc, $4
+	and	$2, 0xaa, $5
+	cmovne	$3, 4, $3
+	cmovne	$4, 2, $4
+	cmovne	$5, 1, $5
+	addq	$3, $4, $3
+	addq	$16, $5, $16
+	addq	$16, $3, $16
+
+	/* Now do the append.  */
+
+	mov	$26, $23
+	br	__stxcpy
+
+	.end strcat
+EXPORT_SYMBOL(strcat);
diff --git a/arch/alpha/lib/strchr.S b/arch/alpha/lib/strchr.S
new file mode 100644
index 000000000..17871dd00
--- /dev/null
+++ b/arch/alpha/lib/strchr.S
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strchr.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Return the address of a given character within a null-terminated
+ * string, or null if it is not found.
+ */
+#include <asm/export.h>
+#include <asm/regdef.h>
+
+	.set noreorder
+	.set noat
+
+	.align 3
+	.globl strchr
+	.ent strchr
+strchr:
+	.frame sp, 0, ra
+	.prologue 0
+
+	zapnot	a1, 1, a1	# e0    : zero extend the search character
+	ldq_u   t0, 0(a0)	# .. e1 : load first quadword
+	sll	a1, 8, t5	# e0    : replicate the search character
+	andnot  a0, 7, v0	# .. e1 : align our loop pointer
+	or	t5, a1, a1	# e0    :
+	lda	t4, -1		# .. e1 : build garbage mask
+	sll	a1, 16, t5	# e0    :
+	cmpbge  zero, t0, t2	# .. e1 : bits set iff byte == zero
+	mskqh	t4, a0, t4	# e0    :
+	or	t5, a1, a1	# .. e1 :
+	sll	a1, 32, t5	# e0    :
+	cmpbge	zero, t4, t4	# .. e1 : bits set iff byte is garbage
+	or	t5, a1, a1	# e0    :
+	xor	t0, a1, t1	# .. e1 : make bytes == c zero
+	cmpbge  zero, t1, t3	# e0    : bits set iff byte == c
+	or	t2, t3, t0	# e1    : bits set iff char match or zero match
+	andnot	t0, t4, t0	# e0    : clear garbage bits
+	bne	t0, $found	# .. e1 (zdb)
+
+$loop:	ldq	t0, 8(v0)	# e0    :
+	addq	v0, 8, v0	# .. e1 :
+	nop			# e0    :
+	xor	t0, a1, t1	# .. e1 (ev5 data stall)
+	cmpbge	zero, t0, t2	# e0    : bits set iff byte == 0
+	cmpbge	zero, t1, t3	# .. e1 : bits set iff byte == c
+	or	t2, t3, t0	# e0    :
+	beq	t0, $loop	# .. e1 (zdb)
+
+$found:	negq    t0, t1		# e0    : clear all but least set bit
+	and     t0, t1, t0	# e1 (stall)
+
+	and	t0, t3, t1	# e0    : bit set iff byte was the char
+	beq	t1, $retnull	# .. e1 (zdb)
+
+	and     t0, 0xf0, t2	# e0    : binary search for that set bit
+	and	t0, 0xcc, t3	# .. e1 :
+	and	t0, 0xaa, t4	# e0    :
+	cmovne	t2, 4, t2	# .. e1 :
+	cmovne	t3, 2, t3	# e0    :
+	cmovne	t4, 1, t4	# .. e1 :
+	addq	t2, t3, t2	# e0    :
+	addq	v0, t4, v0	# .. e1 :
+	addq	v0, t2, v0	# e0    :
+	ret			# .. e1 :
+
+$retnull:
+	mov	zero, v0	# e0    :
+	ret			# .. e1 :
+
+	.end strchr
+	EXPORT_SYMBOL(strchr)
diff --git a/arch/alpha/lib/strcpy.S b/arch/alpha/lib/strcpy.S
new file mode 100644
index 000000000..cb74ad23a
--- /dev/null
+++ b/arch/alpha/lib/strcpy.S
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strcpy.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Copy a null-terminated string from SRC to DST.  Return a pointer
+ * to the null-terminator in the source.
+ */
+#include <asm/export.h>
+	.text
+
+	.align 3
+	.globl strcpy
+	.ent strcpy
+strcpy:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# set up return value
+	mov	$26, $23	# set up return address
+	unop
+	br	__stxcpy	# do the copy
+
+	.end strcpy
+	EXPORT_SYMBOL(strcpy)
diff --git a/arch/alpha/lib/strlen.S b/arch/alpha/lib/strlen.S
new file mode 100644
index 000000000..dd882fe4d
--- /dev/null
+++ b/arch/alpha/lib/strlen.S
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * strlen.S (c) 1995 David Mosberger (davidm@cs.arizona.edu)
+ *
+ * Finds length of a 0-terminated string.  Optimized for the
+ * Alpha architecture:
+ *
+ *	- memory accessed as aligned quadwords only
+ *	- uses bcmpge to compare 8 bytes in parallel
+ *	- does binary search to find 0 byte in last
+ *	  quadword (HAKMEM needed 12 instructions to
+ *	  do this instead of the 9 instructions that
+ *	  binary search needs).
+ */
+#include <asm/export.h>
+	.set noreorder
+	.set noat
+
+	.align 3
+
+	.globl	strlen
+	.ent	strlen
+
+strlen:
+	ldq_u	$1, 0($16)	# load first quadword ($16  may be misaligned)
+	lda	$2, -1($31)
+	insqh	$2, $16, $2
+	andnot	$16, 7, $0
+	or	$2, $1, $1
+	cmpbge	$31, $1, $2	# $2  <- bitmask: bit i == 1 <==> i-th byte == 0
+	bne	$2, found
+
+loop:	ldq	$1, 8($0)
+	addq	$0, 8, $0	# addr += 8
+	nop			# helps dual issue last two insns
+	cmpbge	$31, $1, $2
+	beq	$2, loop
+
+found:	blbs	$2, done	# make aligned case fast
+	negq	$2, $3
+	and	$2, $3, $2
+
+	and	$2, 0x0f, $1
+	addq	$0, 4, $3
+	cmoveq	$1, $3, $0
+
+	and	$2, 0x33, $1
+	addq	$0, 2, $3
+	cmoveq	$1, $3, $0
+
+	and	$2, 0x55, $1
+	addq	$0, 1, $3
+	cmoveq	$1, $3, $0
+
+done:	subq	$0, $16, $0
+	ret	$31, ($26)
+
+	.end	strlen
+	EXPORT_SYMBOL(strlen)
diff --git a/arch/alpha/lib/strncat.S b/arch/alpha/lib/strncat.S
new file mode 100644
index 000000000..522fee3e2
--- /dev/null
+++ b/arch/alpha/lib/strncat.S
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strncat.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Append no more than COUNT characters from the null-terminated string SRC
+ * to the null-terminated string DST.  Always null-terminate the new DST.
+ *
+ * This differs slightly from the semantics in libc in that we never write
+ * past count, whereas libc may write to count+1.  This follows the generic
+ * implementation in lib/string.c and is, IMHO, more sensible.
+ */
+#include <asm/export.h>
+	.text
+
+	.align 3
+	.globl strncat
+	.ent strncat
+strncat:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# set up return value
+	beq	$18, $zerocount
+
+	/* Find the end of the string.  */
+
+	ldq_u   $1, 0($16)	# load first quadword ($16 may be misaligned)
+	lda     $2, -1($31)
+	insqh   $2, $16, $2
+	andnot  $16, 7, $16
+	or      $2, $1, $1
+	cmpbge  $31, $1, $2	# bits set iff byte == 0
+	bne     $2, $found
+
+$loop:	ldq     $1, 8($16)
+	addq    $16, 8, $16
+	cmpbge  $31, $1, $2
+	beq     $2, $loop
+
+$found:	negq    $2, $3		# clear all but least set bit
+	and     $2, $3, $2
+
+	and     $2, 0xf0, $3	# binary search for that set bit
+	and	$2, 0xcc, $4
+	and	$2, 0xaa, $5
+	cmovne	$3, 4, $3
+	cmovne	$4, 2, $4
+	cmovne	$5, 1, $5
+	addq	$3, $4, $3
+	addq	$16, $5, $16
+	addq	$16, $3, $16
+
+	/* Now do the append.  */
+
+	bsr	$23, __stxncpy
+
+	/* Worry about the null termination.  */
+
+	zapnot	$1, $27, $2	# was last byte a null?
+	bne	$2, 0f
+	ret
+
+0:	cmplt	$27, $24, $2	# did we fill the buffer completely?
+	or	$2, $18, $2
+	bne	$2, 2f
+
+	and	$24, 0x80, $2	# no zero next byte
+	bne	$2, 1f
+
+	/* Here there are bytes left in the current word.  Clear one.  */
+	addq	$24, $24, $24	# end-of-count bit <<= 1
+2:	zap	$1, $24, $1
+	stq_u	$1, 0($16)
+	ret
+
+1:	/* Here we must read the next DST word and clear the first byte.  */
+	ldq_u	$1, 8($16)
+	zap	$1, 1, $1
+	stq_u	$1, 8($16)
+
+$zerocount:
+	ret
+
+	.end strncat
+	EXPORT_SYMBOL(strncat)
diff --git a/arch/alpha/lib/strncpy.S b/arch/alpha/lib/strncpy.S
new file mode 100644
index 000000000..cc57fad8b
--- /dev/null
+++ b/arch/alpha/lib/strncpy.S
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strncpy.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Copy no more than COUNT bytes of the null-terminated string from
+ * SRC to DST.  If SRC does not cover all of COUNT, the balance is
+ * zeroed.
+ *
+ * Or, rather, if the kernel cared about that weird ANSI quirk.  This
+ * version has cropped that bit o' nastiness as well as assuming that
+ * __stxncpy is in range of a branch.
+ */
+#include <asm/export.h>
+	.set noat
+	.set noreorder
+
+	.text
+
+	.align 4
+	.globl strncpy
+	.ent strncpy
+strncpy:
+	.frame $30, 0, $26
+	.prologue 0
+
+	mov	$16, $0		# set return value now
+	beq	$18, $zerolen
+	unop
+	bsr	$23, __stxncpy	# do the work of the copy
+
+	unop
+	bne	$18, $multiword	# do we have full words left?
+	subq	$24, 1, $3	# nope
+	subq	$27, 1, $4
+
+	or	$3, $24, $3	# clear the bits between the last
+	or	$4, $27, $4	# written byte and the last byte in COUNT
+	andnot	$3, $4, $4
+	zap	$1, $4, $1
+
+	stq_u	$1, 0($16)
+	ret
+
+	.align	4
+$multiword:
+	subq	$27, 1, $2	# clear the final bits in the prev word
+	or	$2, $27, $2
+	zapnot	$1, $2, $1
+	subq	$18, 1, $18
+
+	stq_u	$1, 0($16)
+	addq	$16, 8, $16
+	unop
+	beq	$18, 1f
+
+	nop
+	unop
+	nop
+	blbc	$18, 0f
+
+	stq_u	$31, 0($16)	# zero one word
+	subq	$18, 1, $18
+	addq	$16, 8, $16
+	beq	$18, 1f
+
+0:	stq_u	$31, 0($16)	# zero two words
+	subq	$18, 2, $18
+	stq_u	$31, 8($16)
+	addq	$16, 16, $16
+	bne	$18, 0b
+
+1:	ldq_u	$1, 0($16)	# clear the leading bits in the final word
+	subq	$24, 1, $2
+	or	$2, $24, $2
+
+	zap	$1, $2, $1
+	stq_u	$1, 0($16)
+$zerolen:
+	ret
+
+	.end	strncpy
+	EXPORT_SYMBOL(strncpy)
diff --git a/arch/alpha/lib/strrchr.S b/arch/alpha/lib/strrchr.S
new file mode 100644
index 000000000..7650ba99b
--- /dev/null
+++ b/arch/alpha/lib/strrchr.S
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/strrchr.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Return the address of the last occurrence of a given character
+ * within a null-terminated string, or null if it is not found.
+ */
+#include <asm/export.h>
+#include <asm/regdef.h>
+
+	.set noreorder
+	.set noat
+
+	.align 3
+	.ent strrchr
+	.globl strrchr
+strrchr:
+	.frame sp, 0, ra
+	.prologue 0
+
+	zapnot	a1, 1, a1	# e0    : zero extend our test character
+	mov	zero, t6	# .. e1 : t6 is last match aligned addr
+	sll	a1, 8, t5	# e0    : replicate our test character
+	mov	zero, t8	# .. e1 : t8 is last match byte compare mask
+	or	t5, a1, a1	# e0    :
+	ldq_u   t0, 0(a0)	# .. e1 : load first quadword
+	sll	a1, 16, t5	# e0    :
+	andnot  a0, 7, v0	# .. e1 : align source addr
+	or	t5, a1, a1	# e0    :
+	lda	t4, -1		# .. e1 : build garbage mask
+	sll	a1, 32, t5	# e0    :
+	cmpbge  zero, t0, t1	# .. e1 : bits set iff byte == zero
+	mskqh	t4, a0, t4	# e0    :
+	or	t5, a1, a1	# .. e1 : character replication complete
+	xor	t0, a1, t2	# e0    : make bytes == c zero
+	cmpbge	zero, t4, t4	# .. e1 : bits set iff byte is garbage
+	cmpbge  zero, t2, t3	# e0    : bits set iff byte == c
+	andnot	t1, t4, t1	# .. e1 : clear garbage from null test
+	andnot	t3, t4, t3	# e0    : clear garbage from char test
+	bne	t1, $eos	# .. e1 : did we already hit the terminator?
+
+	/* Character search main loop */
+$loop:
+	ldq	t0, 8(v0)	# e0    : load next quadword
+	cmovne	t3, v0, t6	# .. e1 : save previous comparisons match
+	cmovne	t3, t3, t8	# e0    :
+	addq	v0, 8, v0	# .. e1 :
+	xor	t0, a1, t2	# e0    :
+	cmpbge	zero, t0, t1	# .. e1 : bits set iff byte == zero
+	cmpbge	zero, t2, t3	# e0    : bits set iff byte == c
+	beq	t1, $loop	# .. e1 : if we havnt seen a null, loop
+
+	/* Mask out character matches after terminator */
+$eos:
+	negq	t1, t4		# e0    : isolate first null byte match
+	and	t1, t4, t4	# e1    :
+	subq	t4, 1, t5	# e0    : build a mask of the bytes up to...
+	or	t4, t5, t4	# e1    : ... and including the null
+
+	and	t3, t4, t3	# e0    : mask out char matches after null
+	cmovne	t3, t3, t8	# .. e1 : save it, if match found
+	cmovne	t3, v0, t6	# e0    :
+
+	/* Locate the address of the last matched character */
+
+	/* Retain the early exit for the ev4 -- the ev5 mispredict penalty
+	   is 5 cycles -- the same as just falling through.  */
+	beq	t8, $retnull	# .. e1 :
+
+	and	t8, 0xf0, t2	# e0    : binary search for the high bit set
+	cmovne	t2, t2, t8	# .. e1 (zdb)
+	cmovne	t2, 4, t2	# e0    :
+	and	t8, 0xcc, t1	# .. e1 :
+	cmovne	t1, t1, t8	# e0    :
+	cmovne	t1, 2, t1	# .. e1 :
+	and	t8, 0xaa, t0	# e0    :
+	cmovne	t0, 1, t0	# .. e1 (zdb)
+	addq	t2, t1, t1	# e0    :
+	addq	t6, t0, v0	# .. e1 : add our aligned base ptr to the mix
+	addq	v0, t1, v0	# e0    :
+	ret			# .. e1 :
+
+$retnull:
+	mov	zero, v0	# e0    :
+	ret			# .. e1 :
+
+	.end strrchr
+	EXPORT_SYMBOL(strrchr)
diff --git a/arch/alpha/lib/stxcpy.S b/arch/alpha/lib/stxcpy.S
new file mode 100644
index 000000000..58723b0a3
--- /dev/null
+++ b/arch/alpha/lib/stxcpy.S
@@ -0,0 +1,290 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/stxcpy.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Copy a null-terminated string from SRC to DST.
+ *
+ * This is an internal routine used by strcpy, stpcpy, and strcat.
+ * As such, it uses special linkage conventions to make implementation
+ * of these public functions more efficient.
+ *
+ * On input:
+ *	t9 = return address
+ *	a0 = DST
+ *	a1 = SRC
+ *
+ * On output:
+ *	t12 = bitmask (with one bit set) indicating the last byte written
+ *	a0  = unaligned address of the last *word* written
+ *
+ * Furthermore, v0, a3-a5, t11, and t12 are untouched.
+ */
+
+#include <asm/regdef.h>
+
+	.set noat
+	.set noreorder
+
+	.text
+
+/* There is a problem with either gdb (as of 4.16) or gas (as of 2.7) that
+   doesn't like putting the entry point for a procedure somewhere in the
+   middle of the procedure descriptor.  Work around this by putting the
+   aligned copy in its own procedure descriptor */
+
+	.ent stxcpy_aligned
+	.align 3
+stxcpy_aligned:
+	.frame sp, 0, t9
+	.prologue 0
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == the first source word.  */
+
+	/* Create the 1st output word and detect 0's in the 1st input word.  */
+	lda	t2, -1		# e1    : build a mask against false zero
+	mskqh	t2, a1, t2	# e0    :   detection in the src word
+	mskqh	t1, a1, t3	# e0    :
+	ornot	t1, t2, t2	# .. e1 :
+	mskql	t0, a1, t0	# e0    : assemble the first output word
+	cmpbge	zero, t2, t8	# .. e1 : bits set iff null found
+	or	t0, t3, t1	# e0    :
+	bne	t8, $a_eos	# .. e1 :
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == a source word not containing a null.  */
+
+$a_loop:
+	stq_u	t1, 0(a0)	# e0    :
+	addq	a0, 8, a0	# .. e1 :
+	ldq_u	t1, 0(a1)	# e0    :
+	addq	a1, 8, a1	# .. e1 :
+	cmpbge	zero, t1, t8	# e0 (stall)
+	beq	t8, $a_loop	# .. e1 (zdb)
+
+	/* Take care of the final (partial) word store.
+	   On entry to this basic block we have:
+	   t1 == the source word containing the null
+	   t8 == the cmpbge mask that found it.  */
+$a_eos:
+	negq	t8, t6		# e0    : find low bit set
+	and	t8, t6, t12	# e1 (stall)
+
+	/* For the sake of the cache, don't read a destination word
+	   if we're not going to need it.  */
+	and	t12, 0x80, t6	# e0    :
+	bne	t6, 1f		# .. e1 (zdb)
+
+	/* We're doing a partial word store and so need to combine
+	   our source and original destination words.  */
+	ldq_u	t0, 0(a0)	# e0    :
+	subq	t12, 1, t6	# .. e1 :
+	zapnot	t1, t6, t1	# e0    : clear src bytes >= null
+	or	t12, t6, t8	# .. e1 :
+	zap	t0, t8, t0	# e0    : clear dst bytes <= null
+	or	t0, t1, t1	# e1    :
+
+1:	stq_u	t1, 0(a0)	# e0    :
+	ret	(t9)		# .. e1 :
+
+	.end stxcpy_aligned
+
+	.align 3
+	.ent __stxcpy
+	.globl __stxcpy
+__stxcpy:
+	.frame sp, 0, t9
+	.prologue 0
+
+	/* Are source and destination co-aligned?  */
+	xor	a0, a1, t0	# e0    :
+	unop			#       :
+	and	t0, 7, t0	# e0    :
+	bne	t0, $unaligned	# .. e1 :
+
+	/* We are co-aligned; take care of a partial first word.  */
+	ldq_u	t1, 0(a1)	# e0    : load first src word
+	and	a0, 7, t0	# .. e1 : take care not to load a word ...
+	addq	a1, 8, a1		# e0    :
+	beq	t0, stxcpy_aligned	# .. e1 : ... if we wont need it
+	ldq_u	t0, 0(a0)	# e0    :
+	br	stxcpy_aligned	# .. e1 :
+
+
+/* The source and destination are not co-aligned.  Align the destination
+   and cope.  We have to be very careful about not reading too much and
+   causing a SEGV.  */
+
+	.align 3
+$u_head:
+	/* We know just enough now to be able to assemble the first
+	   full source word.  We can still find a zero at the end of it
+	   that prevents us from outputting the whole thing.
+
+	   On entry to this basic block:
+	   t0 == the first dest word, for masking back in, if needed else 0
+	   t1 == the low bits of the first source word
+	   t6 == bytemask that is -1 in dest word bytes */
+
+	ldq_u	t2, 8(a1)	# e0    :
+	addq	a1, 8, a1	# .. e1 :
+
+	extql	t1, a1, t1	# e0    :
+	extqh	t2, a1, t4	# e0    :
+	mskql	t0, a0, t0	# e0    :
+	or	t1, t4, t1	# .. e1 :
+	mskqh	t1, a0, t1	# e0    :
+	or	t0, t1, t1	# e1    :
+
+	or	t1, t6, t6	# e0    :
+	cmpbge	zero, t6, t8	# .. e1 :
+	lda	t6, -1		# e0    : for masking just below
+	bne	t8, $u_final	# .. e1 :
+
+	mskql	t6, a1, t6		# e0    : mask out the bits we have
+	or	t6, t2, t2		# e1    :   already extracted before
+	cmpbge	zero, t2, t8		# e0    :   testing eos
+	bne	t8, $u_late_head_exit	# .. e1 (zdb)
+
+	/* Finally, we've got all the stupid leading edge cases taken care
+	   of and we can set up to enter the main loop.  */
+
+	stq_u	t1, 0(a0)	# e0    : store first output word
+	addq	a0, 8, a0	# .. e1 :
+	extql	t2, a1, t0	# e0    : position ho-bits of lo word
+	ldq_u	t2, 8(a1)	# .. e1 : read next high-order source word
+	addq	a1, 8, a1	# e0    :
+	cmpbge	zero, t2, t8	# .. e1 :
+	nop			# e0    :
+	bne	t8, $u_eos	# .. e1 :
+
+	/* Unaligned copy main loop.  In order to avoid reading too much,
+	   the loop is structured to detect zeros in aligned source words.
+	   This has, unfortunately, effectively pulled half of a loop
+	   iteration out into the head and half into the tail, but it does
+	   prevent nastiness from accumulating in the very thing we want
+	   to run as fast as possible.
+
+	   On entry to this basic block:
+	   t0 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word
+
+	   We further know that t2 does not contain a null terminator.  */
+
+	.align 3
+$u_loop:
+	extqh	t2, a1, t1	# e0    : extract high bits for current word
+	addq	a1, 8, a1	# .. e1 :
+	extql	t2, a1, t3	# e0    : extract low bits for next time
+	addq	a0, 8, a0	# .. e1 :
+	or	t0, t1, t1	# e0    : current dst word now complete
+	ldq_u	t2, 0(a1)	# .. e1 : load high word for next time
+	stq_u	t1, -8(a0)	# e0    : save the current word
+	mov	t3, t0		# .. e1 :
+	cmpbge	zero, t2, t8	# e0    : test new word for eos
+	beq	t8, $u_loop	# .. e1 :
+
+	/* We've found a zero somewhere in the source word we just read.
+	   If it resides in the lower half, we have one (probably partial)
+	   word to write out, and if it resides in the upper half, we
+	   have one full and one partial word left to write out.
+
+	   On entry to this basic block:
+	   t0 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word.  */
+$u_eos:
+	extqh	t2, a1, t1	# e0    :
+	or	t0, t1, t1	# e1    : first (partial) source word complete
+
+	cmpbge	zero, t1, t8	# e0    : is the null in this first bit?
+	bne	t8, $u_final	# .. e1 (zdb)
+
+$u_late_head_exit:
+	stq_u	t1, 0(a0)	# e0    : the null was in the high-order bits
+	addq	a0, 8, a0	# .. e1 :
+	extql	t2, a1, t1	# e0    :
+	cmpbge	zero, t1, t8	# .. e1 :
+
+	/* Take care of a final (probably partial) result word.
+	   On entry to this basic block:
+	   t1 == assembled source word
+	   t8 == cmpbge mask that found the null.  */
+$u_final:
+	negq	t8, t6		# e0    : isolate low bit set
+	and	t6, t8, t12	# e1    :
+
+	and	t12, 0x80, t6	# e0    : avoid dest word load if we can
+	bne	t6, 1f		# .. e1 (zdb)
+
+	ldq_u	t0, 0(a0)	# e0    :
+	subq	t12, 1, t6	# .. e1 :
+	or	t6, t12, t8	# e0    :
+	zapnot	t1, t6, t1	# .. e1 : kill source bytes >= null
+	zap	t0, t8, t0	# e0    : kill dest bytes <= null
+	or	t0, t1, t1	# e1    :
+
+1:	stq_u	t1, 0(a0)	# e0    :
+	ret	(t9)		# .. e1 :
+
+	/* Unaligned copy entry point.  */
+	.align 3
+$unaligned:
+
+	ldq_u	t1, 0(a1)	# e0    : load first source word
+
+	and	a0, 7, t4	# .. e1 : find dest misalignment
+	and	a1, 7, t5	# e0    : find src misalignment
+
+	/* Conditionally load the first destination word and a bytemask
+	   with 0xff indicating that the destination byte is sacrosanct.  */
+
+	mov	zero, t0	# .. e1 :
+	mov	zero, t6	# e0    :
+	beq	t4, 1f		# .. e1 :
+	ldq_u	t0, 0(a0)	# e0    :
+	lda	t6, -1		# .. e1 :
+	mskql	t6, a0, t6	# e0    :
+1:
+	subq	a1, t4, a1	# .. e1 : sub dest misalignment from src addr
+
+	/* If source misalignment is larger than dest misalignment, we need
+	   extra startup checks to avoid SEGV.  */
+
+	cmplt	t4, t5, t12	# e0    :
+	beq	t12, $u_head	# .. e1 (zdb)
+
+	lda	t2, -1		# e1    : mask out leading garbage in source
+	mskqh	t2, t5, t2	# e0    :
+	nop			# e0    :
+	ornot	t1, t2, t3	# .. e1 :
+	cmpbge	zero, t3, t8	# e0    : is there a zero?
+	beq	t8, $u_head	# .. e1 (zdb)
+
+	/* At this point we've found a zero in the first partial word of
+	   the source.  We need to isolate the valid source data and mask
+	   it into the original destination data.  (Incidentally, we know
+	   that we'll need at least one byte of that original dest word.) */
+
+	ldq_u	t0, 0(a0)	# e0    :
+
+	negq	t8, t6		# .. e1 : build bitmask of bytes <= zero
+	and	t6, t8, t12	# e0    :
+	and	a1, 7, t5	# .. e1 :
+	subq	t12, 1, t6	# e0    :
+	or	t6, t12, t8	# e1    :
+	srl	t12, t5, t12	# e0    : adjust final null return value
+
+	zapnot	t2, t8, t2	# .. e1 : prepare source word; mirror changes
+	and	t1, t2, t1	# e1    : to source validity mask
+	extql	t2, a1, t2	# .. e0 :
+	extql	t1, a1, t1	# e0    :
+
+	andnot	t0, t2, t0	# .. e1 : zero place for source to reside
+	or	t0, t1, t1	# e1    : and put it there
+	stq_u	t1, 0(a0)	# .. e0 :
+	ret	(t9)		# e1    :
+
+	.end __stxcpy
diff --git a/arch/alpha/lib/stxncpy.S b/arch/alpha/lib/stxncpy.S
new file mode 100644
index 000000000..011d9091c
--- /dev/null
+++ b/arch/alpha/lib/stxncpy.S
@@ -0,0 +1,346 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/lib/stxncpy.S
+ * Contributed by Richard Henderson (rth@tamu.edu)
+ *
+ * Copy no more than COUNT bytes of the null-terminated string from
+ * SRC to DST.
+ *
+ * This is an internal routine used by strncpy, stpncpy, and strncat.
+ * As such, it uses special linkage conventions to make implementation
+ * of these public functions more efficient.
+ *
+ * On input:
+ *	t9 = return address
+ *	a0 = DST
+ *	a1 = SRC
+ *	a2 = COUNT
+ *
+ * Furthermore, COUNT may not be zero.
+ *
+ * On output:
+ *	t0  = last word written
+ *	t10 = bitmask (with one bit set) indicating the byte position of
+ *	      the end of the range specified by COUNT
+ *	t12 = bitmask (with one bit set) indicating the last byte written
+ *	a0  = unaligned address of the last *word* written
+ *	a2  = the number of full words left in COUNT
+ *
+ * Furthermore, v0, a3-a5, t11, and $at are untouched.
+ */
+
+#include <asm/regdef.h>
+
+	.set noat
+	.set noreorder
+
+	.text
+
+/* There is a problem with either gdb (as of 4.16) or gas (as of 2.7) that
+   doesn't like putting the entry point for a procedure somewhere in the
+   middle of the procedure descriptor.  Work around this by putting the
+   aligned copy in its own procedure descriptor */
+
+	.ent stxncpy_aligned
+	.align 3
+stxncpy_aligned:
+	.frame sp, 0, t9, 0
+	.prologue 0
+
+	/* On entry to this basic block:
+	   t0 == the first destination word for masking back in
+	   t1 == the first source word.  */
+
+	/* Create the 1st output word and detect 0's in the 1st input word.  */
+	lda	t2, -1		# e1    : build a mask against false zero
+	mskqh	t2, a1, t2	# e0    :   detection in the src word
+	mskqh	t1, a1, t3	# e0    :
+	ornot	t1, t2, t2	# .. e1 :
+	mskql	t0, a1, t0	# e0    : assemble the first output word
+	cmpbge	zero, t2, t8	# .. e1 : bits set iff null found
+	or	t0, t3, t0	# e0    :
+	beq	a2, $a_eoc	# .. e1 :
+	bne	t8, $a_eos	# .. e1 :
+
+	/* On entry to this basic block:
+	   t0 == a source word not containing a null.  */
+
+$a_loop:
+	stq_u	t0, 0(a0)	# e0    :
+	addq	a0, 8, a0	# .. e1 :
+	ldq_u	t0, 0(a1)	# e0    :
+	addq	a1, 8, a1	# .. e1 :
+	subq	a2, 1, a2	# e0    :
+	cmpbge	zero, t0, t8	# .. e1 (stall)
+	beq	a2, $a_eoc      # e1    :
+	beq	t8, $a_loop	# e1    :
+
+	/* Take care of the final (partial) word store.  At this point
+	   the end-of-count bit is set in t8 iff it applies.
+
+	   On entry to this basic block we have:
+	   t0 == the source word containing the null
+	   t8 == the cmpbge mask that found it.  */
+
+$a_eos:
+	negq	t8, t12		# e0    : find low bit set
+	and	t8, t12, t12	# e1 (stall)
+
+	/* For the sake of the cache, don't read a destination word
+	   if we're not going to need it.  */
+	and	t12, 0x80, t6	# e0    :
+	bne	t6, 1f		# .. e1 (zdb)
+
+	/* We're doing a partial word store and so need to combine
+	   our source and original destination words.  */
+	ldq_u	t1, 0(a0)	# e0    :
+	subq	t12, 1, t6	# .. e1 :
+	or	t12, t6, t8	# e0    :
+	unop			#
+	zapnot	t0, t8, t0	# e0    : clear src bytes > null
+	zap	t1, t8, t1	# .. e1 : clear dst bytes <= null
+	or	t0, t1, t0	# e1    :
+
+1:	stq_u	t0, 0(a0)	# e0    :
+	ret	(t9)		# e1    :
+
+	/* Add the end-of-count bit to the eos detection bitmask.  */
+$a_eoc:
+	or	t10, t8, t8
+	br	$a_eos
+
+	.end stxncpy_aligned
+
+	.align 3
+	.ent __stxncpy
+	.globl __stxncpy
+__stxncpy:
+	.frame sp, 0, t9, 0
+	.prologue 0
+
+	/* Are source and destination co-aligned?  */
+	xor	a0, a1, t1	# e0    :
+	and	a0, 7, t0	# .. e1 : find dest misalignment
+	and	t1, 7, t1	# e0    :
+	addq	a2, t0, a2	# .. e1 : bias count by dest misalignment
+	subq	a2, 1, a2	# e0    :
+	and	a2, 7, t2	# e1    :
+	srl	a2, 3, a2	# e0    : a2 = loop counter = (count - 1)/8
+	addq	zero, 1, t10	# .. e1 :
+	sll	t10, t2, t10	# e0    : t10 = bitmask of last count byte
+	bne	t1, $unaligned	# .. e1 :
+
+	/* We are co-aligned; take care of a partial first word.  */
+
+	ldq_u	t1, 0(a1)	# e0    : load first src word
+	addq	a1, 8, a1	# .. e1 :
+
+	beq	t0, stxncpy_aligned     # avoid loading dest word if not needed
+	ldq_u	t0, 0(a0)	# e0    :
+	br	stxncpy_aligned	# .. e1 :
+
+
+/* The source and destination are not co-aligned.  Align the destination
+   and cope.  We have to be very careful about not reading too much and
+   causing a SEGV.  */
+
+	.align 3
+$u_head:
+	/* We know just enough now to be able to assemble the first
+	   full source word.  We can still find a zero at the end of it
+	   that prevents us from outputting the whole thing.
+
+	   On entry to this basic block:
+	   t0 == the first dest word, unmasked
+	   t1 == the shifted low bits of the first source word
+	   t6 == bytemask that is -1 in dest word bytes */
+
+	ldq_u	t2, 8(a1)	# e0    : load second src word
+	addq	a1, 8, a1	# .. e1 :
+	mskql	t0, a0, t0	# e0    : mask trailing garbage in dst
+	extqh	t2, a1, t4	# e0    :
+	or	t1, t4, t1	# e1    : first aligned src word complete
+	mskqh	t1, a0, t1	# e0    : mask leading garbage in src
+	or	t0, t1, t0	# e0    : first output word complete
+	or	t0, t6, t6	# e1    : mask original data for zero test
+	cmpbge	zero, t6, t8	# e0    :
+	beq	a2, $u_eocfin	# .. e1 :
+	lda	t6, -1		# e0    :
+	bne	t8, $u_final	# .. e1 :
+
+	mskql	t6, a1, t6	# e0    : mask out bits already seen
+	nop			# .. e1 :
+	stq_u	t0, 0(a0)	# e0    : store first output word
+	or      t6, t2, t2	# .. e1 :
+	cmpbge	zero, t2, t8	# e0    : find nulls in second partial
+	addq	a0, 8, a0	# .. e1 :
+	subq	a2, 1, a2	# e0    :
+	bne	t8, $u_late_head_exit	# .. e1 :
+
+	/* Finally, we've got all the stupid leading edge cases taken care
+	   of and we can set up to enter the main loop.  */
+
+	extql	t2, a1, t1	# e0    : position hi-bits of lo word
+	beq	a2, $u_eoc	# .. e1 :
+	ldq_u	t2, 8(a1)	# e0    : read next high-order source word
+	addq	a1, 8, a1	# .. e1 :
+	extqh	t2, a1, t0	# e0    : position lo-bits of hi word (stall)
+	cmpbge	zero, t2, t8	# .. e1 :
+	nop			# e0    :
+	bne	t8, $u_eos	# .. e1 :
+
+	/* Unaligned copy main loop.  In order to avoid reading too much,
+	   the loop is structured to detect zeros in aligned source words.
+	   This has, unfortunately, effectively pulled half of a loop
+	   iteration out into the head and half into the tail, but it does
+	   prevent nastiness from accumulating in the very thing we want
+	   to run as fast as possible.
+
+	   On entry to this basic block:
+	   t0 == the shifted low-order bits from the current source word
+	   t1 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word
+
+	   We further know that t2 does not contain a null terminator.  */
+
+	.align 3
+$u_loop:
+	or	t0, t1, t0	# e0    : current dst word now complete
+	subq	a2, 1, a2	# .. e1 : decrement word count
+	stq_u	t0, 0(a0)	# e0    : save the current word
+	addq	a0, 8, a0	# .. e1 :
+	extql	t2, a1, t1	# e0    : extract high bits for next time
+	beq	a2, $u_eoc	# .. e1 :
+	ldq_u	t2, 8(a1)	# e0    : load high word for next time
+	addq	a1, 8, a1	# .. e1 :
+	nop			# e0    :
+	cmpbge	zero, t2, t8	# e1    : test new word for eos (stall)
+	extqh	t2, a1, t0	# e0    : extract low bits for current word
+	beq	t8, $u_loop	# .. e1 :
+
+	/* We've found a zero somewhere in the source word we just read.
+	   If it resides in the lower half, we have one (probably partial)
+	   word to write out, and if it resides in the upper half, we
+	   have one full and one partial word left to write out.
+
+	   On entry to this basic block:
+	   t0 == the shifted low-order bits from the current source word
+	   t1 == the shifted high-order bits from the previous source word
+	   t2 == the unshifted current source word.  */
+$u_eos:
+	or	t0, t1, t0	# e0    : first (partial) source word complete
+	nop			# .. e1 :
+	cmpbge	zero, t0, t8	# e0    : is the null in this first bit?
+	bne	t8, $u_final	# .. e1 (zdb)
+
+	stq_u	t0, 0(a0)	# e0    : the null was in the high-order bits
+	addq	a0, 8, a0	# .. e1 :
+	subq	a2, 1, a2	# e1    :
+
+$u_late_head_exit:
+	extql	t2, a1, t0	# .. e0 :
+	cmpbge	zero, t0, t8	# e0    :
+	or	t8, t10, t6	# e1    :
+	cmoveq	a2, t6, t8	# e0    :
+	nop			# .. e1 :
+
+	/* Take care of a final (probably partial) result word.
+	   On entry to this basic block:
+	   t0 == assembled source word
+	   t8 == cmpbge mask that found the null.  */
+$u_final:
+	negq	t8, t6		# e0    : isolate low bit set
+	and	t6, t8, t12	# e1    :
+
+	and	t12, 0x80, t6	# e0    : avoid dest word load if we can
+	bne	t6, 1f		# .. e1 (zdb)
+
+	ldq_u	t1, 0(a0)	# e0    :
+	subq	t12, 1, t6	# .. e1 :
+	or	t6, t12, t8	# e0    :
+	zapnot	t0, t8, t0	# .. e1 : kill source bytes > null
+	zap	t1, t8, t1	# e0    : kill dest bytes <= null
+	or	t0, t1, t0	# e1    :
+
+1:	stq_u	t0, 0(a0)	# e0    :
+	ret	(t9)		# .. e1 :
+
+	/* Got to end-of-count before end of string.  
+	   On entry to this basic block:
+	   t1 == the shifted high-order bits from the previous source word  */
+$u_eoc:
+	and	a1, 7, t6	# e1    :
+	sll	t10, t6, t6	# e0    :
+	and	t6, 0xff, t6	# e0    :
+	bne	t6, 1f		# .. e1 :
+
+	ldq_u	t2, 8(a1)	# e0    : load final src word
+	nop			# .. e1 :
+	extqh	t2, a1, t0	# e0    : extract low bits for last word
+	or	t1, t0, t1	# e1    :
+
+1:	cmpbge	zero, t1, t8
+	mov	t1, t0
+
+$u_eocfin:			# end-of-count, final word
+	or	t10, t8, t8
+	br	$u_final
+
+	/* Unaligned copy entry point.  */
+	.align 3
+$unaligned:
+
+	ldq_u	t1, 0(a1)	# e0    : load first source word
+
+	and	a0, 7, t4	# .. e1 : find dest misalignment
+	and	a1, 7, t5	# e0    : find src misalignment
+
+	/* Conditionally load the first destination word and a bytemask
+	   with 0xff indicating that the destination byte is sacrosanct.  */
+
+	mov	zero, t0	# .. e1 :
+	mov	zero, t6	# e0    :
+	beq	t4, 1f		# .. e1 :
+	ldq_u	t0, 0(a0)	# e0    :
+	lda	t6, -1		# .. e1 :
+	mskql	t6, a0, t6	# e0    :
+	subq	a1, t4, a1	# .. e1 : sub dest misalignment from src addr
+
+	/* If source misalignment is larger than dest misalignment, we need
+	   extra startup checks to avoid SEGV.  */
+
+1:	cmplt	t4, t5, t12	# e1    :
+	extql	t1, a1, t1	# .. e0 : shift src into place
+	lda	t2, -1		# e0    : for creating masks later
+	beq	t12, $u_head	# .. e1 :
+
+	extql	t2, a1, t2	# e0    :
+	cmpbge	zero, t1, t8	# .. e1 : is there a zero?
+	andnot	t2, t6, t2	# e0    : dest mask for a single word copy
+	or	t8, t10, t5	# .. e1 : test for end-of-count too
+	cmpbge	zero, t2, t3	# e0    :
+	cmoveq	a2, t5, t8	# .. e1 :
+	andnot	t8, t3, t8	# e0    :
+	beq	t8, $u_head	# .. e1 (zdb)
+
+	/* At this point we've found a zero in the first partial word of
+	   the source.  We need to isolate the valid source data and mask
+	   it into the original destination data.  (Incidentally, we know
+	   that we'll need at least one byte of that original dest word.) */
+
+	ldq_u	t0, 0(a0)	# e0    :
+	negq	t8, t6		# .. e1 : build bitmask of bytes <= zero
+	mskqh	t1, t4, t1	# e0    :
+	and	t6, t8, t12	# .. e1 :
+	subq	t12, 1, t6	# e0    :
+	or	t6, t12, t8	# e1    :
+
+	zapnot	t2, t8, t2	# e0    : prepare source word; mirror changes
+	zapnot	t1, t8, t1	# .. e1 : to source validity mask
+
+	andnot	t0, t2, t0	# e0    : zero place for source to reside
+	or	t0, t1, t0	# e1    : and put it there
+	stq_u	t0, 0(a0)	# e0    :
+	ret	(t9)		# .. e1 :
+
+	.end __stxncpy
diff --git a/arch/alpha/lib/udelay.c b/arch/alpha/lib/udelay.c
new file mode 100644
index 000000000..873648263
--- /dev/null
+++ b/arch/alpha/lib/udelay.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 1993, 2000 Linus Torvalds
+ *
+ * Delay routines, using a pre-computed "loops_per_jiffy" value.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h> /* for udelay's use of smp_processor_id */
+#include <asm/param.h>
+#include <asm/smp.h>
+#include <linux/delay.h>
+
+/*
+ * Use only for very small delays (< 1 msec). 
+ *
+ * The active part of our cycle counter is only 32-bits wide, and
+ * we're treating the difference between two marks as signed.  On
+ * a 1GHz box, that's about 2 seconds.
+ */
+
+void
+__delay(int loops)
+{
+	int tmp;
+	__asm__ __volatile__(
+		"	rpcc %0\n"
+		"	addl %1,%0,%1\n"
+		"1:	rpcc %0\n"
+		"	subl %1,%0,%0\n"
+		"	bgt %0,1b"
+		: "=&r" (tmp), "=r" (loops) : "1"(loops));
+}
+EXPORT_SYMBOL(__delay);
+
+#ifdef CONFIG_SMP
+#define LPJ	 cpu_data[smp_processor_id()].loops_per_jiffy
+#else
+#define LPJ	 loops_per_jiffy
+#endif
+
+void
+udelay(unsigned long usecs)
+{
+	usecs *= (((unsigned long)HZ << 32) / 1000000) * LPJ;
+	__delay((long)usecs >> 32);
+}
+EXPORT_SYMBOL(udelay);
+
+void
+ndelay(unsigned long nsecs)
+{
+	nsecs *= (((unsigned long)HZ << 32) / 1000000000) * LPJ;
+	__delay((long)nsecs >> 32);
+}
+EXPORT_SYMBOL(ndelay);
diff --git a/arch/alpha/lib/udiv-qrnnd.S b/arch/alpha/lib/udiv-qrnnd.S
new file mode 100644
index 000000000..b887aa542
--- /dev/null
+++ b/arch/alpha/lib/udiv-qrnnd.S
@@ -0,0 +1,165 @@
+ # Alpha 21064 __udiv_qrnnd
+ # Copyright (C) 1992, 1994, 1995, 2000 Free Software Foundation, Inc.
+
+ # This file is part of GCC.
+
+ # The GNU MP Library is free software; you can redistribute it and/or modify
+ # it under the terms of the GNU General Public License as published by
+ # the Free Software Foundation; either version 2 of the License, or (at your
+ # option) any later version.
+
+ # In addition to the permissions in the GNU General Public License, the
+ # Free Software Foundation gives you unlimited permission to link the
+ # compiled version of this file with other programs, and to distribute
+ # those programs without any restriction coming from the use of this
+ # file.  (The General Public License restrictions do apply in other
+ # respects; for example, they cover modification of the file, and
+ # distribution when not linked into another program.)
+
+ # This file is distributed in the hope that it will be useful, but
+ # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+ # License for more details.
+
+ # You should have received a copy of the GNU General Public License
+ # along with GCC; see the file COPYING.  If not, write to the 
+ # Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+#include <asm/export.h>
+
+        .set noreorder
+        .set noat
+
+	.text
+
+	.globl __udiv_qrnnd
+	.ent __udiv_qrnnd
+__udiv_qrnnd:
+	.frame $30,0,$26,0
+	.prologue 0
+
+#define cnt	$2
+#define tmp	$3
+#define rem_ptr	$16
+#define n1	$17
+#define n0	$18
+#define d	$19
+#define qb	$20
+#define AT	$at
+
+	ldiq	cnt,16
+	blt	d,$largedivisor
+
+$loop1:	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	d,n1,qb
+	subq	n1,d,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	d,n1,qb
+	subq	n1,d,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	d,n1,qb
+	subq	n1,d,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	d,n1,qb
+	subq	n1,d,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	subq	cnt,1,cnt
+	bgt	cnt,$loop1
+	stq	n1,0(rem_ptr)
+	bis	$31,n0,$0
+	ret	$31,($26),1
+
+$largedivisor:
+	and	n0,1,$4
+
+	srl	n0,1,n0
+	sll	n1,63,tmp
+	or	tmp,n0,n0
+	srl	n1,1,n1
+
+	and	d,1,$6
+	srl	d,1,$5
+	addq	$5,$6,$5
+
+$loop2:	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	$5,n1,qb
+	subq	n1,$5,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	$5,n1,qb
+	subq	n1,$5,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	$5,n1,qb
+	subq	n1,$5,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	cmplt	n0,0,tmp
+	addq	n1,n1,n1
+	bis	n1,tmp,n1
+	addq	n0,n0,n0
+	cmpule	$5,n1,qb
+	subq	n1,$5,tmp
+	cmovne	qb,tmp,n1
+	bis	n0,qb,n0
+	subq	cnt,1,cnt
+	bgt	cnt,$loop2
+
+	addq	n1,n1,n1
+	addq	$4,n1,n1
+	bne	$6,$Odd
+	stq	n1,0(rem_ptr)
+	bis	$31,n0,$0
+	ret	$31,($26),1
+
+$Odd:
+	/* q' in n0. r' in n1 */
+	addq	n1,n0,n1
+
+	cmpult	n1,n0,tmp	# tmp := carry from addq
+	subq	n1,d,AT
+	addq	n0,tmp,n0
+	cmovne	tmp,AT,n1
+
+	cmpult	n1,d,tmp
+	addq	n0,1,AT
+	cmoveq	tmp,AT,n0
+	subq	n1,d,AT
+	cmoveq	tmp,AT,n1
+
+	stq	n1,0(rem_ptr)
+	bis	$31,n0,$0
+	ret	$31,($26),1
+
+	.end	__udiv_qrnnd
+EXPORT_SYMBOL(__udiv_qrnnd)
diff --git a/arch/alpha/math-emu/Makefile b/arch/alpha/math-emu/Makefile
new file mode 100644
index 000000000..3206402a8
--- /dev/null
+++ b/arch/alpha/math-emu/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the FPU instruction emulation.
+#
+
+ccflags-y := -w
+
+obj-$(CONFIG_MATHEMU) += math-emu.o
+
+math-emu-objs := math.o
diff --git a/arch/alpha/math-emu/math.c b/arch/alpha/math-emu/math.c
new file mode 100644
index 000000000..4212258f3
--- /dev/null
+++ b/arch/alpha/math-emu/math.c
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/ptrace.h>
+
+#include <linux/uaccess.h>
+
+#include "sfp-util.h"
+#include <math-emu/soft-fp.h>
+#include <math-emu/single.h>
+#include <math-emu/double.h>
+
+#define	OPC_PAL		0x00
+#define OPC_INTA	0x10
+#define OPC_INTL	0x11
+#define OPC_INTS	0x12
+#define OPC_INTM	0x13
+#define OPC_FLTC	0x14
+#define OPC_FLTV	0x15
+#define OPC_FLTI	0x16
+#define OPC_FLTL	0x17
+#define OPC_MISC	0x18
+#define	OPC_JSR		0x1a
+
+#define FOP_SRC_S	0
+#define FOP_SRC_T	2
+#define FOP_SRC_Q	3
+
+#define FOP_FNC_ADDx	0
+#define FOP_FNC_CVTQL	0
+#define FOP_FNC_SUBx	1
+#define FOP_FNC_MULx	2
+#define FOP_FNC_DIVx	3
+#define FOP_FNC_CMPxUN	4
+#define FOP_FNC_CMPxEQ	5
+#define FOP_FNC_CMPxLT	6
+#define FOP_FNC_CMPxLE	7
+#define FOP_FNC_SQRTx	11
+#define FOP_FNC_CVTxS	12
+#define FOP_FNC_CVTxT	14
+#define FOP_FNC_CVTxQ	15
+
+#define MISC_TRAPB	0x0000
+#define MISC_EXCB	0x0400
+
+extern unsigned long alpha_read_fp_reg (unsigned long reg);
+extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
+extern unsigned long alpha_read_fp_reg_s (unsigned long reg);
+extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val);
+
+
+#ifdef MODULE
+
+MODULE_DESCRIPTION("FP Software completion module");
+MODULE_LICENSE("GPL v2");
+
+extern long (*alpha_fp_emul_imprecise)(struct pt_regs *, unsigned long);
+extern long (*alpha_fp_emul) (unsigned long pc);
+
+static long (*save_emul_imprecise)(struct pt_regs *, unsigned long);
+static long (*save_emul) (unsigned long pc);
+
+long do_alpha_fp_emul_imprecise(struct pt_regs *, unsigned long);
+long do_alpha_fp_emul(unsigned long);
+
+static int alpha_fp_emul_init_module(void)
+{
+	save_emul_imprecise = alpha_fp_emul_imprecise;
+	save_emul = alpha_fp_emul;
+	alpha_fp_emul_imprecise = do_alpha_fp_emul_imprecise;
+	alpha_fp_emul = do_alpha_fp_emul;
+	return 0;
+}
+module_init(alpha_fp_emul_init_module);
+
+static void alpha_fp_emul_cleanup_module(void)
+{
+	alpha_fp_emul_imprecise = save_emul_imprecise;
+	alpha_fp_emul = save_emul;
+}
+module_exit(alpha_fp_emul_cleanup_module);
+
+#undef  alpha_fp_emul_imprecise
+#define alpha_fp_emul_imprecise		do_alpha_fp_emul_imprecise
+#undef  alpha_fp_emul
+#define alpha_fp_emul			do_alpha_fp_emul
+
+#endif /* MODULE */
+
+
+/*
+ * Emulate the floating point instruction at address PC.  Returns -1 if the
+ * instruction to be emulated is illegal (such as with the opDEC trap), else
+ * the SI_CODE for a SIGFPE signal, else 0 if everything's ok.
+ *
+ * Notice that the kernel does not and cannot use FP regs.  This is good
+ * because it means that instead of saving/restoring all fp regs, we simply
+ * stick the result of the operation into the appropriate register.
+ */
+long
+alpha_fp_emul (unsigned long pc)
+{
+	FP_DECL_EX;
+	FP_DECL_S(SA); FP_DECL_S(SB); FP_DECL_S(SR);
+	FP_DECL_D(DA); FP_DECL_D(DB); FP_DECL_D(DR);
+
+	unsigned long fa, fb, fc, func, mode, src;
+	unsigned long res, va, vb, vc, swcr, fpcr;
+	__u32 insn;
+	long si_code;
+
+	get_user(insn, (__u32 __user *)pc);
+	fc     = (insn >>  0) & 0x1f;	/* destination register */
+	fb     = (insn >> 16) & 0x1f;
+	fa     = (insn >> 21) & 0x1f;
+	func   = (insn >>  5) & 0xf;
+	src    = (insn >>  9) & 0x3;
+	mode   = (insn >> 11) & 0x3;
+	
+	fpcr = rdfpcr();
+	swcr = swcr_update_status(current_thread_info()->ieee_state, fpcr);
+
+	if (mode == 3) {
+		/* Dynamic -- get rounding mode from fpcr.  */
+		mode = (fpcr >> FPCR_DYN_SHIFT) & 3;
+	}
+
+	switch (src) {
+	case FOP_SRC_S:
+		va = alpha_read_fp_reg_s(fa);
+		vb = alpha_read_fp_reg_s(fb);
+		
+		FP_UNPACK_SP(SA, &va);
+		FP_UNPACK_SP(SB, &vb);
+
+		switch (func) {
+		case FOP_FNC_SUBx:
+			FP_SUB_S(SR, SA, SB);
+			goto pack_s;
+
+		case FOP_FNC_ADDx:
+			FP_ADD_S(SR, SA, SB);
+			goto pack_s;
+
+		case FOP_FNC_MULx:
+			FP_MUL_S(SR, SA, SB);
+			goto pack_s;
+
+		case FOP_FNC_DIVx:
+			FP_DIV_S(SR, SA, SB);
+			goto pack_s;
+
+		case FOP_FNC_SQRTx:
+			FP_SQRT_S(SR, SB);
+			goto pack_s;
+		}
+		goto bad_insn;
+
+	case FOP_SRC_T:
+		va = alpha_read_fp_reg(fa);
+		vb = alpha_read_fp_reg(fb);
+
+		if ((func & ~3) == FOP_FNC_CMPxUN) {
+			FP_UNPACK_RAW_DP(DA, &va);
+			FP_UNPACK_RAW_DP(DB, &vb);
+			if (!DA_e && !_FP_FRAC_ZEROP_1(DA)) {
+				FP_SET_EXCEPTION(FP_EX_DENORM);
+				if (FP_DENORM_ZERO)
+					_FP_FRAC_SET_1(DA, _FP_ZEROFRAC_1);
+			}
+			if (!DB_e && !_FP_FRAC_ZEROP_1(DB)) {
+				FP_SET_EXCEPTION(FP_EX_DENORM);
+				if (FP_DENORM_ZERO)
+					_FP_FRAC_SET_1(DB, _FP_ZEROFRAC_1);
+			}
+			FP_CMP_D(res, DA, DB, 3);
+			vc = 0x4000000000000000UL;
+			/* CMPTEQ, CMPTUN don't trap on QNaN,
+			   while CMPTLT and CMPTLE do */
+			if (res == 3
+			    && ((func & 3) >= 2
+				|| FP_ISSIGNAN_D(DA)
+				|| FP_ISSIGNAN_D(DB))) {
+				FP_SET_EXCEPTION(FP_EX_INVALID);
+			}
+			switch (func) {
+			case FOP_FNC_CMPxUN: if (res != 3) vc = 0; break;
+			case FOP_FNC_CMPxEQ: if (res) vc = 0; break;
+			case FOP_FNC_CMPxLT: if (res != -1) vc = 0; break;
+			case FOP_FNC_CMPxLE: if ((long)res > 0) vc = 0; break;
+			}
+			goto done_d;
+		}
+
+		FP_UNPACK_DP(DA, &va);
+		FP_UNPACK_DP(DB, &vb);
+
+		switch (func) {
+		case FOP_FNC_SUBx:
+			FP_SUB_D(DR, DA, DB);
+			goto pack_d;
+
+		case FOP_FNC_ADDx:
+			FP_ADD_D(DR, DA, DB);
+			goto pack_d;
+
+		case FOP_FNC_MULx:
+			FP_MUL_D(DR, DA, DB);
+			goto pack_d;
+
+		case FOP_FNC_DIVx:
+			FP_DIV_D(DR, DA, DB);
+			goto pack_d;
+
+		case FOP_FNC_SQRTx:
+			FP_SQRT_D(DR, DB);
+			goto pack_d;
+
+		case FOP_FNC_CVTxS:
+			/* It is irritating that DEC encoded CVTST with
+			   SRC == T_floating.  It is also interesting that
+			   the bit used to tell the two apart is /U... */
+			if (insn & 0x2000) {
+				FP_CONV(S,D,1,1,SR,DB);
+				goto pack_s;
+			} else {
+				vb = alpha_read_fp_reg_s(fb);
+				FP_UNPACK_SP(SB, &vb);
+				DR_c = DB_c;
+				DR_s = DB_s;
+				DR_e = DB_e + (1024 - 128);
+				DR_f = SB_f << (52 - 23);
+				goto pack_d;
+			}
+
+		case FOP_FNC_CVTxQ:
+			if (DB_c == FP_CLS_NAN
+			    && (_FP_FRAC_HIGH_RAW_D(DB) & _FP_QNANBIT_D)) {
+			  /* AAHB Table B-2 says QNaN should not trigger INV */
+				vc = 0;
+			} else
+				FP_TO_INT_ROUND_D(vc, DB, 64, 2);
+			goto done_d;
+		}
+		goto bad_insn;
+
+	case FOP_SRC_Q:
+		vb = alpha_read_fp_reg(fb);
+
+		switch (func) {
+		case FOP_FNC_CVTQL:
+			/* Notice: We can get here only due to an integer
+			   overflow.  Such overflows are reported as invalid
+			   ops.  We return the result the hw would have
+			   computed.  */
+			vc = ((vb & 0xc0000000) << 32 |	/* sign and msb */
+			      (vb & 0x3fffffff) << 29);	/* rest of the int */
+			FP_SET_EXCEPTION (FP_EX_INVALID);
+			goto done_d;
+
+		case FOP_FNC_CVTxS:
+			FP_FROM_INT_S(SR, ((long)vb), 64, long);
+			goto pack_s;
+
+		case FOP_FNC_CVTxT:
+			FP_FROM_INT_D(DR, ((long)vb), 64, long);
+			goto pack_d;
+		}
+		goto bad_insn;
+	}
+	goto bad_insn;
+
+pack_s:
+	FP_PACK_SP(&vc, SR);
+	if ((_fex & FP_EX_UNDERFLOW) && (swcr & IEEE_MAP_UMZ))
+		vc = 0;
+	alpha_write_fp_reg_s(fc, vc);
+	goto done;
+
+pack_d:
+	FP_PACK_DP(&vc, DR);
+	if ((_fex & FP_EX_UNDERFLOW) && (swcr & IEEE_MAP_UMZ))
+		vc = 0;
+done_d:
+	alpha_write_fp_reg(fc, vc);
+	goto done;
+
+	/*
+	 * Take the appropriate action for each possible
+	 * floating-point result:
+	 *
+	 *	- Set the appropriate bits in the FPCR
+	 *	- If the specified exception is enabled in the FPCR,
+	 *	  return.  The caller (entArith) will dispatch
+	 *	  the appropriate signal to the translated program.
+	 *
+	 * In addition, properly track the exception state in software
+	 * as described in the Alpha Architecture Handbook section 4.7.7.3.
+	 */
+done:
+	if (_fex) {
+		/* Record exceptions in software control word.  */
+		swcr |= (_fex << IEEE_STATUS_TO_EXCSUM_SHIFT);
+		current_thread_info()->ieee_state
+		  |= (_fex << IEEE_STATUS_TO_EXCSUM_SHIFT);
+
+		/* Update hardware control register.  */
+		fpcr &= (~FPCR_MASK | FPCR_DYN_MASK);
+		fpcr |= ieee_swcr_to_fpcr(swcr);
+		wrfpcr(fpcr);
+
+		/* Do we generate a signal?  */
+		_fex = _fex & swcr & IEEE_TRAP_ENABLE_MASK;
+		si_code = 0;
+		if (_fex) {
+			if (_fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
+			if (_fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
+			if (_fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
+			if (_fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
+			if (_fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
+			if (_fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
+		}
+
+		return si_code;
+	}
+
+	/* We used to write the destination register here, but DEC FORTRAN
+	   requires that the result *always* be written... so we do the write
+	   immediately after the operations above.  */
+
+	return 0;
+
+bad_insn:
+	printk(KERN_ERR "alpha_fp_emul: Invalid FP insn %#x at %#lx\n",
+	       insn, pc);
+	return -1;
+}
+
+long
+alpha_fp_emul_imprecise (struct pt_regs *regs, unsigned long write_mask)
+{
+	unsigned long trigger_pc = regs->pc - 4;
+	unsigned long insn, opcode, rc, si_code = 0;
+
+	/*
+	 * Turn off the bits corresponding to registers that are the
+	 * target of instructions that set bits in the exception
+	 * summary register.  We have some slack doing this because a
+	 * register that is the target of a trapping instruction can
+	 * be written at most once in the trap shadow.
+	 *
+	 * Branches, jumps, TRAPBs, EXCBs and calls to PALcode all
+	 * bound the trap shadow, so we need not look any further than
+	 * up to the first occurrence of such an instruction.
+	 */
+	while (write_mask) {
+		get_user(insn, (__u32 __user *)(trigger_pc));
+		opcode = insn >> 26;
+		rc = insn & 0x1f;
+
+		switch (opcode) {
+		      case OPC_PAL:
+		      case OPC_JSR:
+		      case 0x30 ... 0x3f:	/* branches */
+			goto egress;
+
+		      case OPC_MISC:
+			switch (insn & 0xffff) {
+			      case MISC_TRAPB:
+			      case MISC_EXCB:
+				goto egress;
+
+			      default:
+				break;
+			}
+			break;
+
+		      case OPC_INTA:
+		      case OPC_INTL:
+		      case OPC_INTS:
+		      case OPC_INTM:
+			write_mask &= ~(1UL << rc);
+			break;
+
+		      case OPC_FLTC:
+		      case OPC_FLTV:
+		      case OPC_FLTI:
+		      case OPC_FLTL:
+			write_mask &= ~(1UL << (rc + 32));
+			break;
+		}
+		if (!write_mask) {
+			/* Re-execute insns in the trap-shadow.  */
+			regs->pc = trigger_pc + 4;
+			si_code = alpha_fp_emul(trigger_pc);
+			goto egress;
+		}
+		trigger_pc -= 4;
+	}
+
+egress:
+	return si_code;
+}
diff --git a/arch/alpha/math-emu/sfp-util.h b/arch/alpha/math-emu/sfp-util.h
new file mode 100644
index 000000000..ae30f3417
--- /dev/null
+++ b/arch/alpha/math-emu/sfp-util.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/fpu.h>
+
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+  ((sl) = (al) + (bl), (sh) = (ah) + (bh) + ((sl) < (al)))
+
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+  ((sl) = (al) - (bl), (sh) = (ah) - (bh) - ((al) < (bl)))
+
+#define umul_ppmm(wh, wl, u, v)			\
+  __asm__ ("mulq %2,%3,%1; umulh %2,%3,%0"	\
+	   : "=r" ((UDItype)(wh)),		\
+	     "=&r" ((UDItype)(wl))		\
+	   : "r" ((UDItype)(u)),		\
+	     "r" ((UDItype)(v)))
+
+#define udiv_qrnnd(q, r, n1, n0, d)				\
+  do { unsigned long __r;					\
+    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));			\
+    (r) = __r;							\
+  } while (0)
+extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long,
+				   unsigned long , unsigned long);
+
+#define UDIV_NEEDS_NORMALIZATION 1  
+
+#define abort()			goto bad_insn
+
+#ifndef __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN -1
+#endif
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/arch/alpha/mm/Makefile b/arch/alpha/mm/Makefile
new file mode 100644
index 000000000..bd770302e
--- /dev/null
+++ b/arch/alpha/mm/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the linux alpha-specific parts of the memory manager.
+#
+
+ccflags-y := -Werror
+
+obj-y	:= init.o fault.o
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
new file mode 100644
index 000000000..2b49aa94e
--- /dev/null
+++ b/arch/alpha/mm/fault.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/mm/fault.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+#include <linux/sched/signal.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+
+#define __EXTERN_INLINE inline
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+#undef  __EXTERN_INLINE
+
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/extable.h>
+#include <linux/uaccess.h>
+#include <linux/perf_event.h>
+
+extern void die_if_kernel(char *,struct pt_regs *,long, unsigned long *);
+
+
+/*
+ * Force a new ASN for a task.
+ */
+
+#ifndef CONFIG_SMP
+unsigned long last_asn = ASN_FIRST_VERSION;
+#endif
+
+void
+__load_new_mm_context(struct mm_struct *next_mm)
+{
+	unsigned long mmc;
+	struct pcb_struct *pcb;
+
+	mmc = __get_new_mm_context(next_mm, smp_processor_id());
+	next_mm->context[smp_processor_id()] = mmc;
+
+	pcb = &current_thread_info()->pcb;
+	pcb->asn = mmc & HARDWARE_ASN_MASK;
+	pcb->ptbr = ((unsigned long) next_mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+
+	__reload_thread(pcb);
+}
+
+
+/*
+ * This routine handles page faults.  It determines the address,
+ * and the problem, and then passes it off to handle_mm_fault().
+ *
+ * mmcsr:
+ *	0 = translation not valid
+ *	1 = access violation
+ *	2 = fault-on-read
+ *	3 = fault-on-execute
+ *	4 = fault-on-write
+ *
+ * cause:
+ *	-1 = instruction fetch
+ *	0 = load
+ *	1 = store
+ *
+ * Registers $9 through $15 are saved in a block just prior to `regs' and
+ * are saved and restored around the call to allow exception code to
+ * modify them.
+ */
+
+/* Macro for exception fixup code to access integer registers.  */
+#define dpf_reg(r)							\
+	(((unsigned long *)regs)[(r) <= 8 ? (r) : (r) <= 15 ? (r)-16 :	\
+				 (r) <= 18 ? (r)+10 : (r)-10])
+
+asmlinkage void
+do_page_fault(unsigned long address, unsigned long mmcsr,
+	      long cause, struct pt_regs *regs)
+{
+	struct vm_area_struct * vma;
+	struct mm_struct *mm = current->mm;
+	const struct exception_table_entry *fixup;
+	int si_code = SEGV_MAPERR;
+	vm_fault_t fault;
+	unsigned int flags = FAULT_FLAG_DEFAULT;
+
+	/* As of EV6, a load into $31/$f31 is a prefetch, and never faults
+	   (or is suppressed by the PALcode).  Support that for older CPUs
+	   by ignoring such an instruction.  */
+	if (cause == 0) {
+		unsigned int insn;
+		__get_user(insn, (unsigned int __user *)regs->pc);
+		if ((insn >> 21 & 0x1f) == 0x1f &&
+		    /* ldq ldl ldt lds ldg ldf ldwu ldbu */
+		    (1ul << (insn >> 26) & 0x30f00001400ul)) {
+			regs->pc += 4;
+			return;
+		}
+	}
+
+	/* If we're in an interrupt context, or have no user context,
+	   we must not take the fault.  */
+	if (!mm || faulthandler_disabled())
+		goto no_context;
+
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+	if (address >= TASK_SIZE)
+		goto vmalloc_fault;
+#endif
+	if (user_mode(regs))
+		flags |= FAULT_FLAG_USER;
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+retry:
+	vma = lock_mm_and_find_vma(mm, address, regs);
+	if (!vma)
+		goto bad_area_nosemaphore;
+
+	/* Ok, we have a good vm_area for this memory access, so
+	   we can handle it.  */
+	si_code = SEGV_ACCERR;
+	if (cause < 0) {
+		if (!(vma->vm_flags & VM_EXEC))
+			goto bad_area;
+	} else if (!cause) {
+		/* Allow reads even for write-only mappings */
+		if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
+			goto bad_area;
+	} else {
+		if (!(vma->vm_flags & VM_WRITE))
+			goto bad_area;
+		flags |= FAULT_FLAG_WRITE;
+	}
+
+	/* If for any reason at all we couldn't handle the fault,
+	   make sure we exit gracefully rather than endlessly redo
+	   the fault.  */
+	fault = handle_mm_fault(vma, address, flags, regs);
+
+	if (fault_signal_pending(fault, regs))
+		return;
+
+	/* The fault is fully completed (including releasing mmap lock) */
+	if (fault & VM_FAULT_COMPLETED)
+		return;
+
+	if (unlikely(fault & VM_FAULT_ERROR)) {
+		if (fault & VM_FAULT_OOM)
+			goto out_of_memory;
+		else if (fault & VM_FAULT_SIGSEGV)
+			goto bad_area;
+		else if (fault & VM_FAULT_SIGBUS)
+			goto do_sigbus;
+		BUG();
+	}
+
+	if (fault & VM_FAULT_RETRY) {
+		flags |= FAULT_FLAG_TRIED;
+
+		/* No need to mmap_read_unlock(mm) as we would
+		 * have already released it in __lock_page_or_retry
+		 * in mm/filemap.c.
+		 */
+
+		goto retry;
+	}
+
+	mmap_read_unlock(mm);
+
+	return;
+
+	/* Something tried to access memory that isn't in our memory map.
+	   Fix it, but check if it's kernel or user first.  */
+ bad_area:
+	mmap_read_unlock(mm);
+
+ bad_area_nosemaphore:
+	if (user_mode(regs))
+		goto do_sigsegv;
+
+ no_context:
+	/* Are we prepared to handle this fault as an exception?  */
+	if ((fixup = search_exception_tables(regs->pc)) != 0) {
+		unsigned long newpc;
+		newpc = fixup_exception(dpf_reg, fixup, regs->pc);
+		regs->pc = newpc;
+		return;
+	}
+
+	/* Oops. The kernel tried to access some bad page. We'll have to
+	   terminate things with extreme prejudice.  */
+	printk(KERN_ALERT "Unable to handle kernel paging request at "
+	       "virtual address %016lx\n", address);
+	die_if_kernel("Oops", regs, cause, (unsigned long*)regs - 16);
+	make_task_dead(SIGKILL);
+
+	/* We ran out of memory, or some other thing happened to us that
+	   made us unable to handle the page fault gracefully.  */
+ out_of_memory:
+	mmap_read_unlock(mm);
+	if (!user_mode(regs))
+		goto no_context;
+	pagefault_out_of_memory();
+	return;
+
+ do_sigbus:
+	mmap_read_unlock(mm);
+	/* Send a sigbus, regardless of whether we were in kernel
+	   or user mode.  */
+	force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *) address);
+	if (!user_mode(regs))
+		goto no_context;
+	return;
+
+ do_sigsegv:
+	force_sig_fault(SIGSEGV, si_code, (void __user *) address);
+	return;
+
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+ vmalloc_fault:
+	if (user_mode(regs))
+		goto do_sigsegv;
+	else {
+		/* Synchronize this task's top level page-table
+		   with the "reference" page table from init.  */
+		long index = pgd_index(address);
+		pgd_t *pgd, *pgd_k;
+
+		pgd = current->active_mm->pgd + index;
+		pgd_k = swapper_pg_dir + index;
+		if (!pgd_present(*pgd) && pgd_present(*pgd_k)) {
+			pgd_val(*pgd) = pgd_val(*pgd_k);
+			return;
+		}
+		goto no_context;
+	}
+#endif
+}
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
new file mode 100644
index 000000000..a155180d7
--- /dev/null
+++ b/arch/alpha/mm/init.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/arch/alpha/mm/init.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ */
+
+/* 2.3.x zone allocator, 1999 Andrea Arcangeli <andrea@suse.de> */
+
+#include <linux/pagemap.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/init.h>
+#include <linux/memblock.h> /* max_low_pfn */
+#include <linux/vmalloc.h>
+#include <linux/gfp.h>
+
+#include <linux/uaccess.h>
+#include <asm/pgalloc.h>
+#include <asm/hwrpb.h>
+#include <asm/dma.h>
+#include <asm/mmu_context.h>
+#include <asm/console.h>
+#include <asm/tlb.h>
+#include <asm/setup.h>
+#include <asm/sections.h>
+
+extern void die_if_kernel(char *,struct pt_regs *,long);
+
+static struct pcb_struct original_pcb;
+
+pgd_t *
+pgd_alloc(struct mm_struct *mm)
+{
+	pgd_t *ret, *init;
+
+	ret = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+	init = pgd_offset(&init_mm, 0UL);
+	if (ret) {
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+		memcpy (ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
+			(PTRS_PER_PGD - USER_PTRS_PER_PGD - 1)*sizeof(pgd_t));
+#else
+		pgd_val(ret[PTRS_PER_PGD-2]) = pgd_val(init[PTRS_PER_PGD-2]);
+#endif
+
+		/* The last PGD entry is the VPTB self-map.  */
+		pgd_val(ret[PTRS_PER_PGD-1])
+		  = pte_val(mk_pte(virt_to_page(ret), PAGE_KERNEL));
+	}
+	return ret;
+}
+
+
+/*
+ * BAD_PAGE is the page that is used for page faults when linux
+ * is out-of-memory. Older versions of linux just did a
+ * do_exit(), but using this instead means there is less risk
+ * for a process dying in kernel mode, possibly leaving an inode
+ * unused etc..
+ *
+ * BAD_PAGETABLE is the accompanying page-table: it is initialized
+ * to point to BAD_PAGE entries.
+ *
+ * ZERO_PAGE is a special page that is used for zero-initialized
+ * data and COW.
+ */
+pmd_t *
+__bad_pagetable(void)
+{
+	memset(absolute_pointer(EMPTY_PGT), 0, PAGE_SIZE);
+	return (pmd_t *) EMPTY_PGT;
+}
+
+pte_t
+__bad_page(void)
+{
+	memset(absolute_pointer(EMPTY_PGE), 0, PAGE_SIZE);
+	return pte_mkdirty(mk_pte(virt_to_page(EMPTY_PGE), PAGE_SHARED));
+}
+
+static inline unsigned long
+load_PCB(struct pcb_struct *pcb)
+{
+	register unsigned long sp __asm__("$30");
+	pcb->ksp = sp;
+	return __reload_thread(pcb);
+}
+
+/* Set up initial PCB, VPTB, and other such nicities.  */
+
+static inline void
+switch_to_system_map(void)
+{
+	unsigned long newptbr;
+	unsigned long original_pcb_ptr;
+
+	/* Initialize the kernel's page tables.  Linux puts the vptb in
+	   the last slot of the L1 page table.  */
+	memset(swapper_pg_dir, 0, PAGE_SIZE);
+	newptbr = ((unsigned long) swapper_pg_dir - PAGE_OFFSET) >> PAGE_SHIFT;
+	pgd_val(swapper_pg_dir[1023]) =
+		(newptbr << 32) | pgprot_val(PAGE_KERNEL);
+
+	/* Set the vptb.  This is often done by the bootloader, but 
+	   shouldn't be required.  */
+	if (hwrpb->vptb != 0xfffffffe00000000UL) {
+		wrvptptr(0xfffffffe00000000UL);
+		hwrpb->vptb = 0xfffffffe00000000UL;
+		hwrpb_update_checksum(hwrpb);
+	}
+
+	/* Also set up the real kernel PCB while we're at it.  */
+	init_thread_info.pcb.ptbr = newptbr;
+	init_thread_info.pcb.flags = 1;	/* set FEN, clear everything else */
+	original_pcb_ptr = load_PCB(&init_thread_info.pcb);
+	tbia();
+
+	/* Save off the contents of the original PCB so that we can
+	   restore the original console's page tables for a clean reboot.
+
+	   Note that the PCB is supposed to be a physical address, but
+	   since KSEG values also happen to work, folks get confused.
+	   Check this here.  */
+
+	if (original_pcb_ptr < PAGE_OFFSET) {
+		original_pcb_ptr = (unsigned long)
+			phys_to_virt(original_pcb_ptr);
+	}
+	original_pcb = *(struct pcb_struct *) original_pcb_ptr;
+}
+
+int callback_init_done;
+
+void * __init
+callback_init(void * kernel_end)
+{
+	struct crb_struct * crb;
+	pgd_t *pgd;
+	p4d_t *p4d;
+	pud_t *pud;
+	pmd_t *pmd;
+	void *two_pages;
+
+	/* Starting at the HWRPB, locate the CRB. */
+	crb = (struct crb_struct *)((char *)hwrpb + hwrpb->crb_offset);
+
+	if (alpha_using_srm) {
+		/* Tell the console whither it is to be remapped. */
+		if (srm_fixup(VMALLOC_START, (unsigned long)hwrpb))
+			__halt();		/* "We're boned."  --Bender */
+
+		/* Edit the procedure descriptors for DISPATCH and FIXUP. */
+		crb->dispatch_va = (struct procdesc_struct *)
+			(VMALLOC_START + (unsigned long)crb->dispatch_va
+			 - crb->map[0].va);
+		crb->fixup_va = (struct procdesc_struct *)
+			(VMALLOC_START + (unsigned long)crb->fixup_va
+			 - crb->map[0].va);
+	}
+
+	switch_to_system_map();
+
+	/* Allocate one PGD and one PMD.  In the case of SRM, we'll need
+	   these to actually remap the console.  There is an assumption
+	   here that only one of each is needed, and this allows for 8MB.
+	   On systems with larger consoles, additional pages will be
+	   allocated as needed during the mapping process.
+
+	   In the case of not SRM, but not CONFIG_ALPHA_LARGE_VMALLOC,
+	   we need to allocate the PGD we use for vmalloc before we start
+	   forking other tasks.  */
+
+	two_pages = (void *)
+	  (((unsigned long)kernel_end + ~PAGE_MASK) & PAGE_MASK);
+	kernel_end = two_pages + 2*PAGE_SIZE;
+	memset(two_pages, 0, 2*PAGE_SIZE);
+
+	pgd = pgd_offset_k(VMALLOC_START);
+	p4d = p4d_offset(pgd, VMALLOC_START);
+	pud = pud_offset(p4d, VMALLOC_START);
+	pud_set(pud, (pmd_t *)two_pages);
+	pmd = pmd_offset(pud, VMALLOC_START);
+	pmd_set(pmd, (pte_t *)(two_pages + PAGE_SIZE));
+
+	if (alpha_using_srm) {
+		static struct vm_struct console_remap_vm;
+		unsigned long nr_pages = 0;
+		unsigned long vaddr;
+		unsigned long i, j;
+
+		/* calculate needed size */
+		for (i = 0; i < crb->map_entries; ++i)
+			nr_pages += crb->map[i].count;
+
+		/* register the vm area */
+		console_remap_vm.flags = VM_ALLOC;
+		console_remap_vm.size = nr_pages << PAGE_SHIFT;
+		vm_area_register_early(&console_remap_vm, PAGE_SIZE);
+
+		vaddr = (unsigned long)console_remap_vm.addr;
+
+		/* Set up the third level PTEs and update the virtual
+		   addresses of the CRB entries.  */
+		for (i = 0; i < crb->map_entries; ++i) {
+			unsigned long pfn = crb->map[i].pa >> PAGE_SHIFT;
+			crb->map[i].va = vaddr;
+			for (j = 0; j < crb->map[i].count; ++j) {
+				/* Newer consoles (especially on larger
+				   systems) may require more pages of
+				   PTEs. Grab additional pages as needed. */
+				if (pmd != pmd_offset(pud, vaddr)) {
+					memset(kernel_end, 0, PAGE_SIZE);
+					pmd = pmd_offset(pud, vaddr);
+					pmd_set(pmd, (pte_t *)kernel_end);
+					kernel_end += PAGE_SIZE;
+				}
+				set_pte(pte_offset_kernel(pmd, vaddr),
+					pfn_pte(pfn, PAGE_KERNEL));
+				pfn++;
+				vaddr += PAGE_SIZE;
+			}
+		}
+	}
+
+	callback_init_done = 1;
+	return kernel_end;
+}
+
+/*
+ * paging_init() sets up the memory map.
+ */
+void __init paging_init(void)
+{
+	unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, };
+	unsigned long dma_pfn;
+
+	dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+	max_pfn = max_low_pfn;
+
+	max_zone_pfn[ZONE_DMA] = dma_pfn;
+	max_zone_pfn[ZONE_NORMAL] = max_pfn;
+
+	/* Initialize mem_map[].  */
+	free_area_init(max_zone_pfn);
+
+	/* Initialize the kernel's ZERO_PGE. */
+	memset(absolute_pointer(ZERO_PGE), 0, PAGE_SIZE);
+}
+
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
+void
+srm_paging_stop (void)
+{
+	/* Move the vptb back to where the SRM console expects it.  */
+	swapper_pg_dir[1] = swapper_pg_dir[1023];
+	tbia();
+	wrvptptr(0x200000000UL);
+	hwrpb->vptb = 0x200000000UL;
+	hwrpb_update_checksum(hwrpb);
+
+	/* Reload the page tables that the console had in use.  */
+	load_PCB(&original_pcb);
+	tbia();
+}
+#endif
+
+void __init
+mem_init(void)
+{
+	set_max_mapnr(max_low_pfn);
+	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
+	memblock_free_all();
+}
+
+static const pgprot_t protection_map[16] = {
+	[VM_NONE]					= _PAGE_P(_PAGE_FOE | _PAGE_FOW |
+								  _PAGE_FOR),
+	[VM_READ]					= _PAGE_P(_PAGE_FOE | _PAGE_FOW),
+	[VM_WRITE]					= _PAGE_P(_PAGE_FOE),
+	[VM_WRITE | VM_READ]				= _PAGE_P(_PAGE_FOE),
+	[VM_EXEC]					= _PAGE_P(_PAGE_FOW | _PAGE_FOR),
+	[VM_EXEC | VM_READ]				= _PAGE_P(_PAGE_FOW),
+	[VM_EXEC | VM_WRITE]				= _PAGE_P(0),
+	[VM_EXEC | VM_WRITE | VM_READ]			= _PAGE_P(0),
+	[VM_SHARED]					= _PAGE_S(_PAGE_FOE | _PAGE_FOW |
+								  _PAGE_FOR),
+	[VM_SHARED | VM_READ]				= _PAGE_S(_PAGE_FOE | _PAGE_FOW),
+	[VM_SHARED | VM_WRITE]				= _PAGE_S(_PAGE_FOE),
+	[VM_SHARED | VM_WRITE | VM_READ]		= _PAGE_S(_PAGE_FOE),
+	[VM_SHARED | VM_EXEC]				= _PAGE_S(_PAGE_FOW | _PAGE_FOR),
+	[VM_SHARED | VM_EXEC | VM_READ]			= _PAGE_S(_PAGE_FOW),
+	[VM_SHARED | VM_EXEC | VM_WRITE]		= _PAGE_S(0),
+	[VM_SHARED | VM_EXEC | VM_WRITE | VM_READ]	= _PAGE_S(0)
+};
+DECLARE_VM_GET_PAGE_PROT