diff options
| author | Jan Beulich <JBeulich@suse.com> | 2015-01-23 08:29:50 +0000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2015-02-04 08:35:51 +1100 |
| commit | 75aaf4c3e6a4ed48207230cf133a02258ca5abd5 (patch) | |
| tree | 4d4eba8a7ead427b30f41b0566838e8ff5b91688 /arch/x86/Makefile | |
| parent | d95901433436aeb921eac58bfd8a2aa77f110384 (diff) | |
| download | lwn-75aaf4c3e6a4ed48207230cf133a02258ca5abd5.tar.gz lwn-75aaf4c3e6a4ed48207230cf133a02258ca5abd5.zip | |
x86/raid6: correctly check for assembler capabilities
Just like for AVX2 (which simply needs an #if -> #ifdef conversion),
SSSE3 assembler support should be checked for before using it.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Jim Kukunas <james.t.kukunas@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'arch/x86/Makefile')
| -rw-r--r-- | arch/x86/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 920e6160c535..5ba2d9ce82dc 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -148,6 +148,7 @@ cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTI # does binutils support specific instructions? asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1) +asinstr += $(call as-instr,pshufb %xmm0$(comma)%xmm0,-DCONFIG_AS_SSSE3=1) asinstr += $(call as-instr,crc32l %eax$(comma)%eax,-DCONFIG_AS_CRC32=1) 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) |