From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 22 Dec 2002 12:39:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 22 Dec 2002 12:39:31 -0500 Received: from franka.aracnet.com ([216.99.193.44]:17342 "EHLO franka.aracnet.com") by vger.kernel.org with ESMTP id ; Sun, 22 Dec 2002 12:39:31 -0500 Date: Sun, 22 Dec 2002 09:47:28 -0800 From: "Martin J. Bligh" To: William Lee Irwin III , "Pallipadi, Venkatesh" cc: "Nakajima, Jun" , "Van Maren, Kevin" , Christoph Hellwig , James Cleverdon , John Stultz , "Mallick, Asit K" , "Saxena, Sunil" , Linux Kernel , "Protasevich, Natalie" Subject: Re: [PATCH][2.4] generic support for systems with more than 8 CPUs (2/2) Message-ID: <36680000.1040579247@titus> In-Reply-To: <20021222121717.GH25000@holomorphy.com> References: <20021222121717.GH25000@holomorphy.com> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > IIRC NUMA-Q can be dynamically detected at boot by means of an MP OEM > table's presence, in particular if there's a matching string in the 8B > OEM record in the OEM table, with a value of "IBM NUMA" IIRC. This is > probably a line or two's worth of change to mpparse.c and declaring a > variable for clustered_apic_mode. If it were difficult to detect, I > wouldn't have suggested implementing it (though do so at your leisure). =) > > I still think this is 2.5 material + backport once it gets testing there. I think there are still some things around that are switched on #defines for NUMA-Q. Also older machines will probably say Sequent instead of IBM in the OEM table. Would need some testing ... M.