Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 468 insertions, 0 deletions

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
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+# SPDX-License-Identifier: GPL-2.0
+# Put here option for CPU selection and depending optimization
+choice
+	prompt "Processor family"
+	default M686 if X86_32
+	default GENERIC_CPU if X86_64
+	---help---
+	  This is the processor type of your CPU. This information is
+	  used for optimizing purposes. In order to compile a kernel
+	  that can run on all supported x86 CPU types (albeit not
+	  optimally fast), you can specify "486" here.
+
+	  Note that the 386 is no longer supported, this includes
+	  AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI 486DLC/DLC2,
+	  UMC 486SX-S and the NexGen Nx586.
+
+	  The kernel will not necessarily run on earlier architectures than
+	  the one you have chosen, e.g. a Pentium optimized kernel will run on
+	  a PPro, but not necessarily on a i486.
+
+	  Here are the settings recommended for greatest speed:
+	  - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
+	    SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
+	  - "586" for generic Pentium CPUs lacking the TSC
+	    (time stamp counter) register.
+	  - "Pentium-Classic" for the Intel Pentium.
+	  - "Pentium-MMX" for the Intel Pentium MMX.
+	  - "Pentium-Pro" for the Intel Pentium Pro.
+	  - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
+	  - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
+	  - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
+	  - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
+	  - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
+	  - "Opteron/Athlon64/Hammer/K8" for all K8 and newer AMD CPUs.
+	  - "Crusoe" for the Transmeta Crusoe series.
+	  - "Efficeon" for the Transmeta Efficeon series.
+	  - "Winchip-C6" for original IDT Winchip.
+	  - "Winchip-2" for IDT Winchips with 3dNow! capabilities.
+	  - "AMD Elan" for the 32-bit AMD Elan embedded CPU.
+	  - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
+	  - "Geode GX/LX" For AMD Geode GX and LX processors.
+	  - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
+	  - "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above).
+	  - "VIA C7" for VIA C7.
+	  - "Intel P4" for the Pentium 4/Netburst microarchitecture.
+	  - "Core 2/newer Xeon" for all core2 and newer Intel CPUs.
+	  - "Intel Atom" for the Atom-microarchitecture CPUs.
+	  - "Generic-x86-64" for a kernel which runs on any x86-64 CPU.
+
+	  See each option's help text for additional details. If you don't know
+	  what to do, choose "486".
+
+config M486
+	bool "486"
+	depends on X86_32
+	---help---
+	  Select this for an 486-class CPU such as AMD/Cyrix/IBM/Intel
+	  486DX/DX2/DX4 or SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
+
+config M586
+	bool "586/K5/5x86/6x86/6x86MX"
+	depends on X86_32
+	---help---
+	  Select this for an 586 or 686 series processor such as the AMD K5,
+	  the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
+	  assume the RDTSC (Read Time Stamp Counter) instruction.
+
+config M586TSC
+	bool "Pentium-Classic"
+	depends on X86_32
+	---help---
+	  Select this for a Pentium Classic processor with the RDTSC (Read
+	  Time Stamp Counter) instruction for benchmarking.
+
+config M586MMX
+	bool "Pentium-MMX"
+	depends on X86_32
+	---help---
+	  Select this for a Pentium with the MMX graphics/multimedia
+	  extended instructions.
+
+config M686
+	bool "Pentium-Pro"
+	depends on X86_32
+	---help---
+	  Select this for Intel Pentium Pro chips.  This enables the use of
+	  Pentium Pro extended instructions, and disables the init-time guard
+	  against the f00f bug found in earlier Pentiums.
+
+config MPENTIUMII
+	bool "Pentium-II/Celeron(pre-Coppermine)"
+	depends on X86_32
+	---help---
+	  Select this for Intel chips based on the Pentium-II and
+	  pre-Coppermine Celeron core.  This option enables an unaligned
+	  copy optimization, compiles the kernel with optimization flags
+	  tailored for the chip, and applies any applicable Pentium Pro
+	  optimizations.
+
+config MPENTIUMIII
+	bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
+	depends on X86_32
+	---help---
+	  Select this for Intel chips based on the Pentium-III and
+	  Celeron-Coppermine core.  This option enables use of some
+	  extended prefetch instructions in addition to the Pentium II
+	  extensions.
+
+config MPENTIUMM
+	bool "Pentium M"
+	depends on X86_32
+	---help---
+	  Select this for Intel Pentium M (not Pentium-4 M)
+	  notebook chips.
+
+config MPENTIUM4
+	bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
+	depends on X86_32
+	---help---
+	  Select this for Intel Pentium 4 chips.  This includes the
+	  Pentium 4, Pentium D, P4-based Celeron and Xeon, and
+	  Pentium-4 M (not Pentium M) chips.  This option enables compile
+	  flags optimized for the chip, uses the correct cache line size, and
+	  applies any applicable optimizations.
+
+	  CPUIDs: F[0-6][1-A] (in /proc/cpuinfo show = cpu family : 15 )
+
+	  Select this for:
+	    Pentiums (Pentium 4, Pentium D, Celeron, Celeron D) corename:
+		-Willamette
+		-Northwood
+		-Mobile Pentium 4
+		-Mobile Pentium 4 M
+		-Extreme Edition (Gallatin)
+		-Prescott
+		-Prescott 2M
+		-Cedar Mill
+		-Presler
+		-Smithfiled
+	    Xeons (Intel Xeon, Xeon MP, Xeon LV, Xeon MV) corename:
+		-Foster
+		-Prestonia
+		-Gallatin
+		-Nocona
+		-Irwindale
+		-Cranford
+		-Potomac
+		-Paxville
+		-Dempsey
+
+
+config MK6
+	bool "K6/K6-II/K6-III"
+	depends on X86_32
+	---help---
+	  Select this for an AMD K6-family processor.  Enables use of
+	  some extended instructions, and passes appropriate optimization
+	  flags to GCC.
+
+config MK7
+	bool "Athlon/Duron/K7"
+	depends on X86_32
+	---help---
+	  Select this for an AMD Athlon K7-family processor.  Enables use of
+	  some extended instructions, and passes appropriate optimization
+	  flags to GCC.
+
+config MK8
+	bool "Opteron/Athlon64/Hammer/K8"
+	---help---
+	  Select this for an AMD Opteron or Athlon64 Hammer-family processor.
+	  Enables use of some extended instructions, and passes appropriate
+	  optimization flags to GCC.
+
+config MCRUSOE
+	bool "Crusoe"
+	depends on X86_32
+	---help---
+	  Select this for a Transmeta Crusoe processor.  Treats the processor
+	  like a 586 with TSC, and sets some GCC optimization flags (like a
+	  Pentium Pro with no alignment requirements).
+
+config MEFFICEON
+	bool "Efficeon"
+	depends on X86_32
+	---help---
+	  Select this for a Transmeta Efficeon processor.
+
+config MWINCHIPC6
+	bool "Winchip-C6"
+	depends on X86_32
+	---help---
+	  Select this for an IDT Winchip C6 chip.  Linux and GCC
+	  treat this chip as a 586TSC with some extended instructions
+	  and alignment requirements.
+
+config MWINCHIP3D
+	bool "Winchip-2/Winchip-2A/Winchip-3"
+	depends on X86_32
+	---help---
+	  Select this for an IDT Winchip-2, 2A or 3.  Linux and GCC
+	  treat this chip as a 586TSC with some extended instructions
+	  and alignment requirements.  Also enable out of order memory
+	  stores for this CPU, which can increase performance of some
+	  operations.
+
+config MELAN
+	bool "AMD Elan"
+	depends on X86_32
+	---help---
+	  Select this for an AMD Elan processor.
+
+	  Do not use this option for K6/Athlon/Opteron processors!
+
+config MGEODEGX1
+	bool "GeodeGX1"
+	depends on X86_32
+	---help---
+	  Select this for a Geode GX1 (Cyrix MediaGX) chip.
+
+config MGEODE_LX
+	bool "Geode GX/LX"
+	depends on X86_32
+	---help---
+	  Select this for AMD Geode GX and LX processors.
+
+config MCYRIXIII
+	bool "CyrixIII/VIA-C3"
+	depends on X86_32
+	---help---
+	  Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
+	  treat this chip as a generic 586. Whilst the CPU is 686 class,
+	  it lacks the cmov extension which gcc assumes is present when
+	  generating 686 code.
+	  Note that Nehemiah (Model 9) and above will not boot with this
+	  kernel due to them lacking the 3DNow! instructions used in earlier
+	  incarnations of the CPU.
+
+config MVIAC3_2
+	bool "VIA C3-2 (Nehemiah)"
+	depends on X86_32
+	---help---
+	  Select this for a VIA C3 "Nehemiah". Selecting this enables usage
+	  of SSE and tells gcc to treat the CPU as a 686.
+	  Note, this kernel will not boot on older (pre model 9) C3s.
+
+config MVIAC7
+	bool "VIA C7"
+	depends on X86_32
+	---help---
+	  Select this for a VIA C7.  Selecting this uses the correct cache
+	  shift and tells gcc to treat the CPU as a 686.
+
+config MPSC
+	bool "Intel P4 / older Netburst based Xeon"
+	depends on X86_64
+	---help---
+	  Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
+	  Xeon CPUs with Intel 64bit which is compatible with x86-64.
+	  Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
+	  Netburst core and shouldn't use this option. You can distinguish them
+	  using the cpu family field
+	  in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
+
+config MCORE2
+	bool "Core 2/newer Xeon"
+	---help---
+
+	  Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
+	  53xx) CPUs. You can distinguish newer from older Xeons by the CPU
+	  family in /proc/cpuinfo. Newer ones have 6 and older ones 15
+	  (not a typo)
+
+config MATOM
+	bool "Intel Atom"
+	---help---
+
+	  Select this for the Intel Atom platform. Intel Atom CPUs have an
+	  in-order pipelining architecture and thus can benefit from
+	  accordingly optimized code. Use a recent GCC with specific Atom
+	  support in order to fully benefit from selecting this option.
+
+config GENERIC_CPU
+	bool "Generic-x86-64"
+	depends on X86_64
+	---help---
+	  Generic x86-64 CPU.
+	  Run equally well on all x86-64 CPUs.
+
+endchoice
+
+config X86_GENERIC
+	bool "Generic x86 support"
+	depends on X86_32
+	---help---
+	  Instead of just including optimizations for the selected
+	  x86 variant (e.g. PII, Crusoe or Athlon), include some more
+	  generic optimizations as well. This will make the kernel
+	  perform better on x86 CPUs other than that selected.
+
+	  This is really intended for distributors who need more
+	  generic optimizations.
+
+#
+# Define implied options from the CPU selection here
+config X86_INTERNODE_CACHE_SHIFT
+	int
+	default "12" if X86_VSMP
+	default X86_L1_CACHE_SHIFT
+
+config X86_L1_CACHE_SHIFT
+	int
+	default "7" if MPENTIUM4 || MPSC
+	default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU
+	default "4" if MELAN || M486 || MGEODEGX1
+	default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
+
+config X86_F00F_BUG
+	def_bool y
+	depends on M586MMX || M586TSC || M586 || M486
+
+config X86_INVD_BUG
+	def_bool y
+	depends on M486
+
+config X86_ALIGNMENT_16
+	def_bool y
+	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+
+config X86_INTEL_USERCOPY
+	def_bool y
+	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
+
+config X86_USE_PPRO_CHECKSUM
+	def_bool y
+	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MATOM
+
+config X86_USE_3DNOW
+	def_bool y
+	depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
+
+#
+# P6_NOPs are a relatively minor optimization that require a family >=
+# 6 processor, except that it is broken on certain VIA chips.
+# Furthermore, AMD chips prefer a totally different sequence of NOPs
+# (which work on all CPUs).  In addition, it looks like Virtual PC
+# does not understand them.
+#
+# As a result, disallow these if we're not compiling for X86_64 (these
+# NOPs do work on all x86-64 capable chips); the list of processors in
+# the right-hand clause are the cores that benefit from this optimization.
+#
+config X86_P6_NOP
+	def_bool y
+	depends on X86_64
+	depends on (MCORE2 || MPENTIUM4 || MPSC)
+
+config X86_TSC
+	def_bool y
+	depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || MATOM) || X86_64
+
+config X86_CMPXCHG64
+	def_bool y
+	depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586TSC || M586MMX || MATOM || MGEODE_LX || MGEODEGX1 || MK6 || MK7 || MK8
+
+# this should be set for all -march=.. options where the compiler
+# generates cmov.
+config X86_CMOV
+	def_bool y
+	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
+
+config X86_MINIMUM_CPU_FAMILY
+	int
+	default "64" if X86_64
+	default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCRUSOE || MCORE2 || MK7 || MK8)
+	default "5" if X86_32 && X86_CMPXCHG64
+	default "4"
+
+config X86_DEBUGCTLMSR
+	def_bool y
+	depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486) && !UML
+
+menuconfig PROCESSOR_SELECT
+	bool "Supported processor vendors" if EXPERT
+	---help---
+	  This lets you choose what x86 vendor support code your kernel
+	  will include.
+
+config CPU_SUP_INTEL
+	default y
+	bool "Support Intel processors" if PROCESSOR_SELECT
+	---help---
+	  This enables detection, tunings and quirks for Intel processors
+
+	  You need this enabled if you want your kernel to run on an
+	  Intel CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on an Intel
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.
+
+config CPU_SUP_CYRIX_32
+	default y
+	bool "Support Cyrix processors" if PROCESSOR_SELECT
+	depends on M486 || M586 || M586TSC || M586MMX || (EXPERT && !64BIT)
+	---help---
+	  This enables detection, tunings and quirks for Cyrix processors
+
+	  You need this enabled if you want your kernel to run on a
+	  Cyrix CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on a Cyrix
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.
+
+config CPU_SUP_AMD
+	default y
+	bool "Support AMD processors" if PROCESSOR_SELECT
+	---help---
+	  This enables detection, tunings and quirks for AMD processors
+
+	  You need this enabled if you want your kernel to run on an
+	  AMD CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on an AMD
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.
+
+config CPU_SUP_CENTAUR
+	default y
+	bool "Support Centaur processors" if PROCESSOR_SELECT
+	---help---
+	  This enables detection, tunings and quirks for Centaur processors
+
+	  You need this enabled if you want your kernel to run on a
+	  Centaur CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on a Centaur
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.
+
+config CPU_SUP_TRANSMETA_32
+	default y
+	bool "Support Transmeta processors" if PROCESSOR_SELECT
+	depends on !64BIT
+	---help---
+	  This enables detection, tunings and quirks for Transmeta processors
+
+	  You need this enabled if you want your kernel to run on a
+	  Transmeta CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on a Transmeta
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.
+
+config CPU_SUP_UMC_32
+	default y
+	bool "Support UMC processors" if PROCESSOR_SELECT
+	depends on M486 || (EXPERT && !64BIT)
+	---help---
+	  This enables detection, tunings and quirks for UMC processors
+
+	  You need this enabled if you want your kernel to run on a
+	  UMC CPU. Disabling this option on other types of CPUs
+	  makes the kernel a tiny bit smaller. Disabling it on a UMC
+	  CPU might render the kernel unbootable.
+
+	  If unsure, say N.