Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751066AbVLBXs2 (ORCPT ); Fri, 2 Dec 2005 18:48:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751072AbVLBXs2 (ORCPT ); Fri, 2 Dec 2005 18:48:28 -0500 Received: from mx2.suse.de ([195.135.220.15]:35565 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S1751054AbVLBXs1 (ORCPT ); Fri, 2 Dec 2005 18:48:27 -0500 Date: Sat, 3 Dec 2005 00:48:26 +0100 From: Andi Kleen To: Ravikiran G Thirumalai Cc: Andi Kleen , Andrew Morton , linux-kernel@vger.kernel.org, discuss@x86-64.org, shai@scalex86.org Subject: Re: [discuss] Re: [patch 1/3] x86_64: Node local PDA -- early cpu_to_node Message-ID: <20051202234826.GG9766@wotan.suse.de> References: <20051202081028.GA5312@localhost.localdomain> <20051202114349.GL997@wotan.suse.de> <20051202225156.GC3727@localhost.localdomain> <20051202230206.GF9766@wotan.suse.de> <20051202234330.GA7426@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051202234330.GA7426@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1347 Lines: 29 On Fri, Dec 02, 2005 at 03:43:30PM -0800, Ravikiran G Thirumalai wrote: > On Sat, Dec 03, 2005 at 12:02:06AM +0100, Andi Kleen wrote: > > On Fri, Dec 02, 2005 at 02:51:56PM -0800, Ravikiran G Thirumalai wrote: > > > On Fri, Dec 02, 2005 at 12:43:49PM +0100, Andi Kleen wrote: > > > > And are you sure it will work with k8topology.c. Doesn't look like > > > > that to me. > > > > > > I don't have a K8 box yet :(, so I cannot confirm either ways. > > > But I thought newer opterons need to use ACPI_NUMA instead... > > > > k8topology still needs to work - e.g. for LinuxBios and users which use > > acpi=off and as a fallback for broken SRAT tables. You can't break it right now. > > > > I don't think this breaks K8 per-se, because x86_cpu_to_apicid[] is setup if > acpi is compiled in and k8topology sets up apicid_to_node[] at > k8_scan_nodes. That said, I don't know for sure as I don't have a K8 yet. If > someone can test this patch on a opteron, compiled with > ACPI_NUMA as well as K8, (but which falls back to K8 at boot), > it will be helpful. I can do that with the next patch. -Andi - 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/