diff options
| author | Gayatri Kammela <gayatri.kammela@intel.com> | 2016-11-16 12:11:00 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-17 01:09:40 +0100 |
| commit | a8d9df5a509a232a959e4ef2e281f7ecd77810d6 (patch) | |
| tree | bae048446dbd7fb3ecd05f97b894f7e18a8f0915 /arch/x86/kernel/fpu/xstate.c | |
| parent | 47bdf3378d62a627cfb8a54e1180c08d67078b61 (diff) | |
| download | talos-obmc-linux-a8d9df5a509a232a959e4ef2e281f7ecd77810d6.tar.gz talos-obmc-linux-a8d9df5a509a232a959e4ef2e281f7ecd77810d6.zip | |
x86/cpufeatures: Enable new AVX512 cpu features
Add a few new AVX512 instruction groups/features for enumeration in
/proc/cpuinfo: AVX512IFMA and AVX512VBMI.
Clear the flags in fpu_xstate_clear_all_cpu_caps().
CPUID.(EAX=7,ECX=0):EBX[bit 21] AVX512IFMA
CPUID.(EAX=7,ECX=0):ECX[bit 1] AVX512VBMI
Detailed information of cpuid bits for the features can be found at
https://bugzilla.kernel.org/show_bug.cgi?id=187891
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: mingo@elte.hu
Link: http://lkml.kernel.org/r/1479327060-18668-1-git-send-email-gayatri.kammela@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/fpu/xstate.c')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 095ef7ddd6ae..ce47452879fd 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -65,6 +65,7 @@ void fpu__xstate_clear_all_cpu_caps(void) setup_clear_cpu_cap(X86_FEATURE_AVX); setup_clear_cpu_cap(X86_FEATURE_AVX2); setup_clear_cpu_cap(X86_FEATURE_AVX512F); + setup_clear_cpu_cap(X86_FEATURE_AVX512IFMA); setup_clear_cpu_cap(X86_FEATURE_AVX512PF); setup_clear_cpu_cap(X86_FEATURE_AVX512ER); setup_clear_cpu_cap(X86_FEATURE_AVX512CD); @@ -73,6 +74,7 @@ void fpu__xstate_clear_all_cpu_caps(void) setup_clear_cpu_cap(X86_FEATURE_AVX512VL); setup_clear_cpu_cap(X86_FEATURE_MPX); setup_clear_cpu_cap(X86_FEATURE_XGETBV1); + setup_clear_cpu_cap(X86_FEATURE_AVX512VBMI); setup_clear_cpu_cap(X86_FEATURE_PKU); setup_clear_cpu_cap(X86_FEATURE_AVX512_4VNNIW); setup_clear_cpu_cap(X86_FEATURE_AVX512_4FMAPS); |
