Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754989AbcCJXSf (ORCPT ); Thu, 10 Mar 2016 18:18:35 -0500 Received: from mga03.intel.com ([134.134.136.65]:45115 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751370AbcCJXSe (ORCPT ); Thu, 10 Mar 2016 18:18:34 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,317,1455004800"; d="scan'208";a="667334487" Subject: Re: [PATCH v2] x86/cpufeatures.h: Enumerate A Few New AVX-512 Features To: Dave Hansen , Fenghua Yu , Ingo Molnar , Thomas Gleixner , Ravi V Shankar References: <1457655828-35106-1-git-send-email-fenghua.yu@intel.com> <56E1E8A1.5040105@intel.com> Cc: linux-kernel , x86 From: "H. Peter Anvin" Message-ID: <56E200C8.90707@linux.intel.com> Date: Thu, 10 Mar 2016 15:18:32 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <56E1E8A1.5040105@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 473 Lines: 14 On 03/10/2016 01:35 PM, Dave Hansen wrote: > On 03/10/2016 04:23 PM, Fenghua Yu wrote: >> A few new AVX-512 instruction groups/features are added in cpufeatures.h >> for enuermation: AVX512DQ, AVX512BW, and AVX512VL. >> >> The specification for latest AVX-512 including the features can be found at >> https://software.intel.com/sites/default/files/managed/07/b7/319433-023.pdf > > Do we need to add these to fpu__xstate_clear_all_cpu_caps()? > I would think so. -hpa