Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759256AbYHFCdb (ORCPT ); Tue, 5 Aug 2008 22:33:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763043AbYHFCdR (ORCPT ); Tue, 5 Aug 2008 22:33:17 -0400 Received: from ti-out-0910.google.com ([209.85.142.186]:60996 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762557AbYHFCdP (ORCPT ); Tue, 5 Aug 2008 22:33:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=rmj7NjK5xYX7Juvs1iCx1CPna3z+tskeXFi0JUCIAgPZmzP5vIgNUtN+TWZ5r+zza7 1FaPt0U8gzWB6asZaZSJFzkjlRmiJL2yoZ1c++B5fZNqjBu8EWEkuoP+bvgiUBk9dQM2 O/hUfoQN+YFXX2C6bLMoFhhv0xQ2YlSiL80RE= Message-ID: Date: Wed, 6 Aug 2008 10:33:13 +0800 From: "Jike Song" To: "David Wilson" Subject: Re: What is the best way to identify a new x86 processor that does not implement the CPUID instruction? Cc: linux-kernel@vger.kernel.org In-Reply-To: <3666888f0808050008h38e11737k8e6cb9c4c85aa457@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <3666888f0808050008h38e11737k8e6cb9c4c85aa457@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 795 Lines: 17 On Tue, Aug 5, 2008 at 3:08 PM, David Wilson wrote: > I have thought of a couple of schemes but am not really keen on either: > > 1) Clock speed - the SoC runs at 300+ MHz while the Cyrix part is < 100 MHz at which speed this Soc is running when being recognized as Cyrix part by Linux? > 2) Look at the PCI VID/PID for the north bridge as this is part of the CPU die. > As you said, since the manufacturer has provided some codes to tune the CPU speed, did they provide any method to identify the CPU without a cpuid function? -- 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/