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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-03-26 09:00:55 +0100 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-04-08 17:01:59 +0200 |
| commit | 42251572c4687813d8e7b1d363a23d0f9201e69f (patch) | |
| tree | b6321c02de1b4950ebb8dc4015b9cc0ca72e4b29 /arch/x86/Makefile | |
| parent | x86: remove always-defined CONFIG_AS_SSSE3 (diff) | |
| download | linux-42251572c4687813d8e7b1d363a23d0f9201e69f.tar.xz linux-42251572c4687813d8e7b1d363a23d0f9201e69f.zip | |
x86: remove always-defined CONFIG_AS_AVX
CONFIG_AS_AVX was introduced by commit ea4d26ae24e5 ("raid5: add AVX
optimized RAID5 checksumming").
We raise the minimal supported binutils version from time to time.
The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum
required binutils version to 2.21").
I confirmed the code in $(call as-instr,...) can be assembled by the
binutils 2.21 assembler and also by LLVM integrated assembler.
Remove CONFIG_AS_AVX, which is always defined.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Makefile')
| -rw-r--r-- | arch/x86/Makefile | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 94f89612e024..f32ef7b8d5ca 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -178,15 +178,14 @@ ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) endif # does binutils support specific instructions? -avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1) avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1) avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1) sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1) sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1) adx_instr := $(call as-instr,adox %r10$(comma)%r10,-DCONFIG_AS_ADX=1) -KBUILD_AFLAGS += $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) -KBUILD_CFLAGS += $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) +KBUILD_AFLAGS += $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) +KBUILD_CFLAGS += $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) |