Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752812AbaBTV1e (ORCPT ); Thu, 20 Feb 2014 16:27:34 -0500 Received: from mga09.intel.com ([134.134.136.24]:31960 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751706AbaBTV1d (ORCPT ); Thu, 20 Feb 2014 16:27:33 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,514,1389772800"; d="scan'208";a="459078454" From: "Fenghua Yu" To: "Ingo Molnar" , "H. Peter Anvin" , "Thomas Gleixner" , "Asit K Mallick" Cc: "linux-kernel" , "x86" , "Fenghua Yu" Subject: [PATCH 1/2] x86/AVX-512: AVX-512 Feature Detection Date: Thu, 20 Feb 2014 13:24:50 -0800 Message-Id: <1392931491-33237-1-git-send-email-fenghua.yu@intel.com> X-Mailer: git-send-email 1.8.0.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Fenghua Yu AVX-512 is an extention of AVX2. Its spec can be found at: http://download-software.intel.com/sites/default/files/managed/71/2e/319433-017.pdf This patch detects AVX-512 features by CPUID. Signed-off-by: Fenghua Yu --- arch/x86/include/asm/cpufeature.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index e099f95..5f12968 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -217,9 +217,13 @@ #define X86_FEATURE_INVPCID (9*32+10) /* Invalidate Processor Context ID */ #define X86_FEATURE_RTM (9*32+11) /* Restricted Transactional Memory */ #define X86_FEATURE_MPX (9*32+14) /* Memory Protection Extension */ +#define X86_FEATURE_AVX512F (9*32+16) /* AVX-512 Foundation */ #define X86_FEATURE_RDSEED (9*32+18) /* The RDSEED instruction */ #define X86_FEATURE_ADX (9*32+19) /* The ADCX and ADOX instructions */ #define X86_FEATURE_SMAP (9*32+20) /* Supervisor Mode Access Prevention */ +#define X86_FEATURE_AVX512PF (9*32+26) /* AVX-512 Prefetch */ +#define X86_FEATURE_AVX512ER (9*32+27) /* AVX-512 Exponential and Reciprocal */ +#define X86_FEATURE_AVX512CD (9*32+28) /* AVX-512 Conflict Detection */ /* * BUG word(s) -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/