x86/cpufeatures: Enable new SSE/AVX/AVX512 CPU features
authorGayatri Kammela <gayatri.kammela@intel.com>
Tue, 31 Oct 2017 01:20:29 +0000 (18:20 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Dec 2017 13:26:16 +0000 (14:26 +0100)
commit12dc3fa30178a4635e435ed2b4e543f76c10dc93
treee1497e895a38a62d27e15282501f113018e91eb9
parentc60238f5712ba5a7d8391914f8290ae1bf5c08c0
x86/cpufeatures: Enable new SSE/AVX/AVX512 CPU features

commit c128dbfa0f879f8ce7b79054037889b0b2240728 upstream.

Add a few new SSE/AVX/AVX512 instruction groups/features for enumeration
in /proc/cpuinfo: AVX512_VBMI2, GFNI, VAES, VPCLMULQDQ, AVX512_VNNI,
AVX512_BITALG.

 CPUID.(EAX=7,ECX=0):ECX[bit 6]  AVX512_VBMI2
 CPUID.(EAX=7,ECX=0):ECX[bit 8]  GFNI
 CPUID.(EAX=7,ECX=0):ECX[bit 9]  VAES
 CPUID.(EAX=7,ECX=0):ECX[bit 10] VPCLMULQDQ
 CPUID.(EAX=7,ECX=0):ECX[bit 11] AVX512_VNNI
 CPUID.(EAX=7,ECX=0):ECX[bit 12] AVX512_BITALG

Detailed information of CPUID bits for these features can be found
in the Intel Architecture Instruction Set Extensions and Future Features
Programming Interface document (refer to Table 1-1. and Table 1-2.).
A copy of this document is available at
https://bugzilla.kernel.org/show_bug.cgi?id=197239

Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Ricardo Neri <ricardo.neri@intel.com>
Cc: Yang Zhong <yang.zhong@intel.com>
Cc: bp@alien8.de
Link: http://lkml.kernel.org/r/1509412829-23380-1-git-send-email-gayatri.kammela@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/cpufeatures.h
arch/x86/kernel/cpu/cpuid-deps.c