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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-21 05:08:30 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-04-01 21:52:52 +1000 |
| commit | a73657ea19aeb92f98438263d42f90188f115d58 (patch) | |
| tree | 7971c9025369b30fab25b416136f40bd24961bbf /arch/powerpc/Makefile | |
| parent | 471d7ff8b51b63521c8ea35c51966ab4caa434ee (diff) | |
| download | op-kernel-dev-a73657ea19aeb92f98438263d42f90188f115d58.zip op-kernel-dev-a73657ea19aeb92f98438263d42f90188f115d58.tar.gz | |
powerpc/64: Add GENERIC_CPU support for little endian
Add GENERIC_CPU support for little-endian rather than using POWER8
specific selection for POWER9 and above.
Restrict GENERIC_CPU to POWER8 and above on little endian.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Duplicate GENERIC_CPU to avoid a kbuild warning about the prompt
being redefined. Spell out that GENERIC means >= POWER4 for BE.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Makefile')
| -rw-r--r-- | arch/powerpc/Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 373d7f5..d6fa140 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -146,8 +146,13 @@ CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata) ifeq ($(CONFIG_PPC_BOOK3S_64),y) +ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) +CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8 +CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power8) +else CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,$(call cc-option,-mtune=power5)) CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mcpu=power5,-mcpu=power4) +endif else CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 endif |
