Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 16 Nov 2001 17:12:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 16 Nov 2001 17:12:16 -0500 Received: from ns.suse.de ([213.95.15.193]:34308 "HELO Cantor.suse.de") by vger.kernel.org with SMTP id ; Fri, 16 Nov 2001 17:11:59 -0500 Date: Fri, 16 Nov 2001 23:11:56 +0100 (CET) From: Dave Jones To: Stefan Smietanowski Cc: Linux Kernel Mailing List Subject: Re: [PATCH] AMD SMP capability sanity checking. In-Reply-To: <3BF58C31.4050402@stesmi.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 16 Nov 2001, Stefan Smietanowski wrote: > Would you mind writing what each of these actually is? > Athlon 661 doesn't tell me much, neither does Duron 671. > That's just an example, which is which? The numbers translate to the family/model/stepping fields of /proc/cpuinfo. The only older models certified as safe for SMP are. Athlon model 6, stepping 0 CPUID = 660 Athlon model 6, stepping 1 CPUID = 661 Duron model 7, stepping 0 CPUID = 670 The newer models.. model 6 stepping 2 and above 662 model 7 stepping 1 and above 671 have a cpuid flag that must be compared to find out if they are capable or not. Note that these id's tally with XP's and MP's. The capability bit is the only way to distinguish between these models. Hope this makes it clearer. regards, Dave. -- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - 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/