mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 04:36:44 +07:00
39a33ff80a
Documentation/kbuild/makefiles.txt says the change for align options occurred at GCC 3.0, and Documentation/process/changes.rst says the minimal supported GCC version is 3.2, so it should be safe to hard-code -falign* options. Fix the only user arch/x86/Makefile_32.cpu and remove cc-option-align. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Ingo Molnar <mingo@kernel.org>
52 lines
2.4 KiB
Plaintext
52 lines
2.4 KiB
Plaintext
# CPU tuning section - shared with UML.
|
|
# Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
|
|
|
|
#-mtune exists since gcc 3.4
|
|
HAS_MTUNE := $(call cc-option-yn, -mtune=i386)
|
|
ifeq ($(HAS_MTUNE),y)
|
|
tune = $(call cc-option,-mtune=$(1),$(2))
|
|
else
|
|
tune = $(call cc-option,-mcpu=$(1),$(2))
|
|
endif
|
|
|
|
cflags-$(CONFIG_M486) += -march=i486
|
|
cflags-$(CONFIG_M586) += -march=i586
|
|
cflags-$(CONFIG_M586TSC) += -march=i586
|
|
cflags-$(CONFIG_M586MMX) += -march=pentium-mmx
|
|
cflags-$(CONFIG_M686) += -march=i686
|
|
cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call tune,pentium2)
|
|
cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call tune,pentium3)
|
|
cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call tune,pentium3)
|
|
cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call tune,pentium4)
|
|
cflags-$(CONFIG_MK6) += -march=k6
|
|
# Please note, that patches that add -march=athlon-xp and friends are pointless.
|
|
# They make zero difference whatsosever to performance at this time.
|
|
cflags-$(CONFIG_MK7) += -march=athlon
|
|
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,-march=athlon)
|
|
cflags-$(CONFIG_MCRUSOE) += -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
|
|
cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) -falign-functions=0 -falign-jumps=0 -falign-loops=0
|
|
cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
|
|
cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
|
|
cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) -falign-functions=0 -falign-jumps=0 -falign-loops=0
|
|
cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
|
|
cflags-$(CONFIG_MVIAC7) += -march=i686
|
|
cflags-$(CONFIG_MCORE2) += -march=i686 $(call tune,core2)
|
|
cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom,$(call cc-option,-march=core2,-march=i686)) \
|
|
$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
|
|
|
|
# AMD Elan support
|
|
cflags-$(CONFIG_MELAN) += -march=i486
|
|
|
|
# Geode GX1 support
|
|
cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx
|
|
cflags-$(CONFIG_MGEODE_LX) += $(call cc-option,-march=geode,-march=pentium-mmx)
|
|
# add at the end to overwrite eventual tuning options from earlier
|
|
# cpu entries
|
|
cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic,$(call tune,i686))
|
|
|
|
# Bug fix for binutils: this option is required in order to keep
|
|
# binutils from generating NOPL instructions against our will.
|
|
ifneq ($(CONFIG_X86_P6_NOP),y)
|
|
cflags-y += $(call cc-option,-Wa$(comma)-mtune=generic32,)
|
|
endif
|