Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760398AbcJRNI0 (ORCPT ); Tue, 18 Oct 2016 09:08:26 -0400 Received: from mail-qt0-f180.google.com ([209.85.216.180]:33510 "EHLO mail-qt0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755399AbcJRNIZ (ORCPT ); Tue, 18 Oct 2016 09:08:25 -0400 Date: Tue, 18 Oct 2016 15:08:18 +0200 From: Ingo Molnar To: "Luc, Piotr" Cc: "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "peterz@infradead.org" , "torvalds@linux-foundation.org" , "tglx@linutronix.de" , "jpoimboe@redhat.com" , "hpa@zytor.com" , "brgerst@gmail.com" , "mingo@redhat.com" , "luto@kernel.org" , "bp@alien8.de" , "Hansen, Dave" , "dvlasenk@redhat.com" Subject: Re: [v2] x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features. Message-ID: <20161018130818.GA25251@gmail.com> References: <20161017150353.11276-1-piotr.luc@intel.com> <1476795301.10038.4.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1476795301.10038.4.camel@intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 598 Lines: 20 * Luc, Piotr wrote: > On Mon, 2016-10-17 at 17:03 +0200, Piotr Luc wrote: > > v2: Initialize new bits in the scattered group. Add > > The commit message is obviously broken. Sorry for that. > I will resend with fixed message. In the v3 patchlog please also please describe to what extent new instructions are enabled by the patch when run on real hardware (or on a simulator). I.e. can user-space run those new instructions, while it couldn't before - or is the patch purely for /proc/cpuinfo enumeration? I.e. a comprehensive before/after comparison. Thanks, Ingo