Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 440 insertions, 0 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
new file mode 100644
index 000000000..26654d0c2
--- /dev/null
+++ b/arch/powerpc/Makefile
@@ -0,0 +1,440 @@
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture.
+#
+# 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
+# Changes for PPC by Gary Thomas
+# Rewritten by Cort Dougan and Paul Mackerras
+#
+
+HAS_BIARCH	:= $(call cc-option-yn, -m32)
+
+# Set default 32 bits cross compilers for vdso and boot wrapper
+CROSS32_COMPILE ?=
+
+ifeq ($(HAS_BIARCH),y)
+ifeq ($(CROSS32_COMPILE),)
+ifdef CONFIG_PPC32
+# These options will be overridden by any -mcpu option that the CPU
+# or platform code sets later on the command line, but they are needed
+# to set a sane 32-bit cpu target for the 64-bit cross compiler which
+# may default to the wrong ISA.
+KBUILD_CFLAGS		+= -mcpu=powerpc
+KBUILD_AFLAGS		+= -mcpu=powerpc
+endif
+endif
+endif
+
+ifeq ($(CROSS_COMPILE),)
+KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
+else
+KBUILD_DEFCONFIG := ppc64_defconfig
+endif
+
+ifdef CONFIG_PPC64
+new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
+
+ifeq ($(new_nm),y)
+NM		:= $(NM) --synthetic
+endif
+endif
+
+# BITS is used as extension for files which are available in a 32 bit
+# and a 64 bit version to simplify shared Makefiles.
+# e.g.: obj-y += foo_$(BITS).o
+export BITS
+
+ifdef CONFIG_PPC64
+        BITS := 64
+else
+        BITS := 32
+endif
+
+machine-y = ppc
+machine-$(CONFIG_PPC64) += 64
+machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
+UTS_MACHINE := $(subst $(space),,$(machine-y))
+
+# XXX This needs to be before we override LD below
+ifdef CONFIG_PPC32
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+else
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/powerpc/kernel/module.lds
+ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+# Have the linker provide sfpr if possible.
+# There is a corresponding test in arch/powerpc/lib/Makefile
+KBUILD_LDFLAGS_MODULE += --save-restore-funcs
+else
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+endif
+endif
+
+ifdef CONFIG_CPU_LITTLE_ENDIAN
+KBUILD_CFLAGS	+= -mlittle-endian
+KBUILD_LDFLAGS	+= -EL
+LDEMULATION	:= lppc
+GNUTARGET	:= powerpcle
+MULTIPLEWORD	:= -mno-multiple
+KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
+else
+KBUILD_CFLAGS += $(call cc-option,-mbig-endian)
+KBUILD_LDFLAGS	+= -EB
+LDEMULATION	:= ppc
+GNUTARGET	:= powerpc
+MULTIPLEWORD	:= -mmultiple
+endif
+
+ifdef CONFIG_PPC64
+ifndef CONFIG_CC_IS_CLANG
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)
+aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2
+endif
+endif
+
+ifneq ($(cc-name),clang)
+  cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mno-strict-align
+endif
+
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
+cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
+aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
+aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
+
+ifeq ($(HAS_BIARCH),y)
+KBUILD_CFLAGS	+= -m$(BITS)
+KBUILD_AFLAGS	+= -m$(BITS) -Wl,-a$(BITS)
+KBUILD_LDFLAGS	+= -m elf$(BITS)$(LDEMULATION)
+KBUILD_ARFLAGS	+= --target=elf$(BITS)-$(GNUTARGET)
+endif
+
+LDFLAGS_vmlinux-y := -Bstatic
+LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
+LDFLAGS_vmlinux	:= $(LDFLAGS_vmlinux-y)
+LDFLAGS_vmlinux += $(call ld-option,--orphan-handling=warn)
+
+ifdef CONFIG_PPC64
+ifeq ($(call cc-option-yn,-mcmodel=medium),y)
+	# -mcmodel=medium breaks modules because it uses 32bit offsets from
+	# the TOC pointer to create pointers where possible. Pointers into the
+	# percpu data area are created by this method.
+	#
+	# The kernel module loader relocates the percpu data section from the
+	# original location (starting with 0xd...) to somewhere in the base
+	# kernel percpu data space (starting with 0xc...). We need a full
+	# 64bit relocation for this to work, hence -mcmodel=large.
+	KBUILD_CFLAGS_MODULE += -mcmodel=large
+else
+	export NO_MINIMAL_TOC := -mno-minimal-toc
+endif
+endif
+
+CFLAGS-$(CONFIG_PPC64)	:= $(call cc-option,-mtraceback=no)
+ifndef CONFIG_CC_IS_CLANG
+ifdef CONFIG_CPU_LITTLE_ENDIAN
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)
+else
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
+AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+endif
+endif
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
+
+# Clang unconditionally reserves r2 on ppc32 and does not support the flag
+# https://bugs.llvm.org/show_bug.cgi?id=39555
+CFLAGS-$(CONFIG_PPC32)	:= $(call cc-option, -ffixed-r2)
+
+# Clang doesn't support -mmultiple / -mno-multiple
+# https://bugs.llvm.org/show_bug.cgi?id=39556
+CFLAGS-$(CONFIG_PPC32)	+= $(call cc-option, $(MULTIPLEWORD))
+
+CFLAGS-$(CONFIG_PPC32)	+= $(call cc-option,-mno-readonly-in-sdata)
+
+ifdef CONFIG_PPC_BOOK3S_64
+ifdef CONFIG_CPU_LITTLE_ENDIAN
+CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8
+CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power9,-mtune=power8)
+else
+CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,$(call cc-option,-mtune=power5))
+CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mcpu=power5,-mcpu=power4)
+endif
+else ifdef CONFIG_PPC_BOOK3E_64
+CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
+endif
+
+ifdef CONFIG_FUNCTION_TRACER
+CC_FLAGS_FTRACE := -pg
+ifdef CONFIG_MPROFILE_KERNEL
+CC_FLAGS_FTRACE += -mprofile-kernel
+endif
+# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828
+ifneq ($(cc-name),clang)
+CC_FLAGS_FTRACE	+= $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)
+endif
+endif
+
+CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
+
+# Altivec option not allowed with e500mc64 in GCC.
+ifdef CONFIG_ALTIVEC
+E5500_CPU := -mcpu=powerpc64
+else
+E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
+endif
+CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
+CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
+
+ifdef CONFIG_PPC32
+ifdef CONFIG_PPC_E500MC
+CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
+else
+CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
+endif
+endif
+
+asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
+
+KBUILD_CPPFLAGS	+= -Iarch/$(ARCH) $(asinstr)
+KBUILD_AFLAGS	+= -Iarch/$(ARCH) $(AFLAGS-y)
+KBUILD_CFLAGS	+= $(call cc-option,-msoft-float)
+KBUILD_CFLAGS	+= -pipe -Iarch/$(ARCH) $(CFLAGS-y)
+CPP		= $(CC) -E $(KBUILD_CFLAGS)
+
+CHECKFLAGS	+= -m$(BITS) -D__powerpc__ -D__powerpc$(BITS)__
+ifdef CONFIG_CPU_BIG_ENDIAN
+CHECKFLAGS	+= -D__BIG_ENDIAN__
+else
+CHECKFLAGS	+= -D__LITTLE_ENDIAN__
+endif
+
+ifdef CONFIG_476FPE_ERR46
+	KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
+		-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
+endif
+
+# No AltiVec or VSX instructions when building kernel
+KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
+KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
+
+# No SPE instruction when building kernel
+# (We use all available options to help semi-broken compilers)
+KBUILD_CFLAGS += $(call cc-option,-mno-spe)
+KBUILD_CFLAGS += $(call cc-option,-mspe=no)
+
+# Enable unit-at-a-time mode when possible. It shrinks the
+# kernel considerably.
+KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
+
+# FIXME: the module load should be taught about the additional relocs
+# generated by this.
+# revert to pre-gcc-4.4 behaviour of .eh_frame
+KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
+
+# Never use string load/store instructions as they are
+# often slow when they are implemented at all
+KBUILD_CFLAGS		+= $(call cc-option,-mno-string)
+
+ifdef CONFIG_6xx
+KBUILD_CFLAGS		+= -mcpu=powerpc
+endif
+
+cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
+cpu-as-$(CONFIG_ALTIVEC)	+= $(call as-option,-Wa$(comma)-maltivec)
+cpu-as-$(CONFIG_E500)		+= -Wa,-me500
+
+# When using '-many -mpower4' gas will first try and find a matching power4
+# mnemonic and failing that it will allow any valid mnemonic that GAS knows
+# about. GCC will pass -many to GAS when assembling, clang does not.
+cpu-as-$(CONFIG_PPC_BOOK3S_64)	+= -Wa,-mpower4 -Wa,-many
+cpu-as-$(CONFIG_PPC_E500MC)	+= $(call as-option,-Wa$(comma)-me500mc)
+
+KBUILD_AFLAGS += $(cpu-as-y)
+KBUILD_CFLAGS += $(cpu-as-y)
+
+KBUILD_AFLAGS += $(aflags-y)
+KBUILD_CFLAGS += $(cflags-y)
+
+head-y				:= arch/powerpc/kernel/head_$(BITS).o
+head-$(CONFIG_PPC_8xx)		:= arch/powerpc/kernel/head_8xx.o
+head-$(CONFIG_40x)		:= arch/powerpc/kernel/head_40x.o
+head-$(CONFIG_44x)		:= arch/powerpc/kernel/head_44x.o
+head-$(CONFIG_FSL_BOOKE)	:= arch/powerpc/kernel/head_fsl_booke.o
+
+head-$(CONFIG_PPC64)		+= arch/powerpc/kernel/entry_64.o
+head-$(CONFIG_PPC_FPU)		+= arch/powerpc/kernel/fpu.o
+head-$(CONFIG_ALTIVEC)		+= arch/powerpc/kernel/vector.o
+head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)  += arch/powerpc/kernel/prom_init.o
+
+core-y				+= arch/powerpc/kernel/ \
+				   arch/powerpc/mm/ \
+				   arch/powerpc/lib/ \
+				   arch/powerpc/sysdev/ \
+				   arch/powerpc/platforms/ \
+				   arch/powerpc/math-emu/ \
+				   arch/powerpc/crypto/ \
+				   arch/powerpc/net/
+core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
+core-$(CONFIG_KVM) 		+= arch/powerpc/kvm/
+core-$(CONFIG_PERF_EVENTS)	+= arch/powerpc/perf/
+core-$(CONFIG_KEXEC_FILE)	+= arch/powerpc/purgatory/
+
+drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
+
+# Default to zImage, override when needed
+all: zImage
+
+# With make 3.82 we cannot mix normal and wildcard targets
+BOOT_TARGETS1 := zImage zImage.initrd uImage
+BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.%
+
+PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2)
+
+boot := arch/$(ARCH)/boot
+
+$(BOOT_TARGETS1): vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+$(BOOT_TARGETS2): vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+
+bootwrapper_install:
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+%.dtb: scripts
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+# Used to create 'merged defconfigs'
+# To use it $(call) it with the first argument as the base defconfig
+# and the second argument as a space separated list of .config files to merge,
+# without the .config suffix.
+define merge_into_defconfig
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
+		-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \
+		$(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config)
+	+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
+endef
+
+PHONY += pseries_le_defconfig
+pseries_le_defconfig:
+	$(call merge_into_defconfig,pseries_defconfig,le)
+
+PHONY += ppc64le_defconfig
+ppc64le_defconfig:
+	$(call merge_into_defconfig,ppc64_defconfig,le)
+
+PHONY += powernv_be_defconfig
+powernv_be_defconfig:
+	$(call merge_into_defconfig,powernv_defconfig,be)
+
+PHONY += mpc85xx_defconfig
+mpc85xx_defconfig:
+	$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
+		85xx-32bit 85xx-hw fsl-emb-nonhw)
+
+PHONY += mpc85xx_smp_defconfig
+mpc85xx_smp_defconfig:
+	$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
+		85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw)
+
+PHONY += corenet32_smp_defconfig
+corenet32_smp_defconfig:
+	$(call merge_into_defconfig,corenet_basic_defconfig,\
+		85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw dpaa)
+
+PHONY += corenet64_smp_defconfig
+corenet64_smp_defconfig:
+	$(call merge_into_defconfig,corenet_basic_defconfig,\
+		85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw dpaa)
+
+PHONY += mpc86xx_defconfig
+mpc86xx_defconfig:
+	$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
+		86xx-hw fsl-emb-nonhw)
+
+PHONY += mpc86xx_smp_defconfig
+mpc86xx_smp_defconfig:
+	$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
+		86xx-smp 86xx-hw fsl-emb-nonhw)
+
+PHONY += ppc32_allmodconfig
+ppc32_allmodconfig:
+	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/book3s_32.config \
+		-f $(srctree)/Makefile allmodconfig
+
+PHONY += ppc64le_allmodconfig
+ppc64le_allmodconfig:
+	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/le.config \
+		-f $(srctree)/Makefile allmodconfig
+
+PHONY += ppc64_book3e_allmodconfig
+ppc64_book3e_allmodconfig:
+	$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/85xx-64bit.config \
+		-f $(srctree)/Makefile allmodconfig
+
+define archhelp
+  @echo '* zImage          - Build default images selected by kernel config'
+  @echo '  zImage.*        - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
+  @echo '  uImage          - U-Boot native image format'
+  @echo '  cuImage.<dt>    - Backwards compatible U-Boot image for older'
+  @echo '                    versions which do not support device trees'
+  @echo '  dtbImage.<dt>   - zImage with an embedded device tree blob'
+  @echo '  simpleImage.<dt> - Firmware independent image.'
+  @echo '  treeImage.<dt>  - Support for older IBM 4xx firmware (not U-Boot)'
+  @echo '  install         - Install kernel using'
+  @echo '                    (your) ~/bin/$(INSTALLKERNEL) or'
+  @echo '                    (distribution) /sbin/$(INSTALLKERNEL) or'
+  @echo '                    install to $$(INSTALL_PATH) and run lilo'
+  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/configs'
+  @echo ''
+  @echo '  Targets with <dt> embed a device tree blob inside the image'
+  @echo '  These targets support board with firmware that does not'
+  @echo '  support passing a device tree directly.  Replace <dt> with the'
+  @echo '  name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
+  @echo '  (minus the .dts extension).'
+endef
+
+install:
+	$(Q)$(MAKE) $(build)=$(boot) install
+
+vdso_install:
+ifdef CONFIG_PPC64
+	$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
+endif
+ifdef CONFIG_VDSO32
+	$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
+endif
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+archprepare: checkbin
+
+# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
+# to stdout and these checks are run even on install targets.
+TOUT	:= .tmp_gas_check
+
+# Check toolchain versions:
+# - gcc-4.6 is the minimum kernel-wide version so nothing required.
+checkbin:
+	@if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \
+	    && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \
+		echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \
+		echo 'in some circumstances.' ; \
+		echo -n '*** Please use a different binutils version.' ; \
+		false ; \
+	fi
+
+
+CLEAN_FILES += $(TOUT)
+