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authorNicholas Piggin <npiggin@gmail.com>2022-09-23 13:30:04 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2022-09-28 19:22:12 +1000
commit4b2a9315f20d98576e25c9e4572e9a8e028d7aa2 (patch)
tree3be463b2f99cb47d7673ec8c119e9fdd7ecb14e2 /arch/powerpc/Makefile
parentpowerpc/pseries: Move vas_migration_handler early during migration (diff)
downloadlinux-dev-4b2a9315f20d98576e25c9e4572e9a8e028d7aa2.tar.xz
linux-dev-4b2a9315f20d98576e25c9e4572e9a8e028d7aa2.zip
powerpc/64s: POWER10 CPU Kconfig build option
This adds basic POWER10_CPU option, which builds with -mcpu=power10. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220923033004.536127-1-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/Makefile')
-rw-r--r--arch/powerpc/Makefile7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index aeabcc945110..19470d29de16 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -192,9 +192,14 @@ ifdef CONFIG_476FPE_ERR46
-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
endif
-# No AltiVec or VSX instructions when building kernel
+# No prefix or pcrel
+KBUILD_CFLAGS += $(call cc-option,-mno-prefixed)
+KBUILD_CFLAGS += $(call cc-option,-mno-pcrel)
+
+# No AltiVec or VSX or MMA instructions when building kernel
KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
+KBUILD_CFLAGS += $(call cc-option,-mno-mma)
# No SPE instruction when building kernel
# (We use all available options to help semi-broken compilers)