From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751482AbZEUGNL (ORCPT ); Thu, 21 May 2009 02:13:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750924AbZEUGM6 (ORCPT ); Thu, 21 May 2009 02:12:58 -0400 Received: from terminus.zytor.com ([198.137.202.10]:51166 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750725AbZEUGM6 (ORCPT ); Thu, 21 May 2009 02:12:58 -0400 Message-ID: <4A14F0A1.3000605@kernel.org> Date: Wed, 20 May 2009 23:11:45 -0700 From: "H. Peter Anvin" Organization: Linux Kernel Organization, Inc. User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Jaswinder Singh Rajput CC: Ingo Molnar , Robert Richter , Dave Jones , LKML , x86 maintainers Subject: Re: [PATCH 1/10 -tip] x86: Add cpufeature for Processor Name References: <1242142530.2547.11.camel@ht.satnam> <1242142623.2547.13.camel@ht.satnam> In-Reply-To: <1242142623.2547.13.camel@ht.satnam> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jaswinder Singh Rajput wrote: > Processor Name / Brand String (Function 8000_0002h, 8000_0003h, 8000_0004h) > Functions 8000_0002h, 8000_0003h, and 8000_0004h each return up to 16 ASCII > bytes of the processor name in the EAX, EBX, ECX and EDX registers. > > X86_FEATURE_PNAME will be useful for displaying MSRs like AMD: > MSRC001_00[35:30] Processor Name String Registers > Pointless and wrong. The presence of the processor name is not the same thing as the presence of specific MSRs, which are model-specific. -hpa