From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262109AbTEACh4 (ORCPT ); Wed, 30 Apr 2003 22:37:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262111AbTEACh4 (ORCPT ); Wed, 30 Apr 2003 22:37:56 -0400 Received: from holomorphy.com ([66.224.33.161]:30679 "EHLO holomorphy") by vger.kernel.org with ESMTP id S262109AbTEAChz (ORCPT ); Wed, 30 Apr 2003 22:37:55 -0400 Date: Wed, 30 Apr 2003 19:49:48 -0700 From: William Lee Irwin III To: Andrew Morton Cc: Keith Mannthey , linux-kernel@vger.kernel.org Subject: Re: [RFC] clustered apic irq affinity fix for i386 Message-ID: <20030501024948.GF8978@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Andrew Morton , Keith Mannthey , linux-kernel@vger.kernel.org References: <1051744032.16886.80.camel@dyn9-47-17-180.beaverton.ibm.com> <20030430163637.04f06ba6.akpm@digeo.com> <1051751157.16886.91.camel@dyn9-47-17-180.beaverton.ibm.com> <20030430192205.13491d61.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030430192205.13491d61.akpm@digeo.com> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 30, 2003 at 07:22:05PM -0700, Andrew Morton wrote: > Is it not possible to fix set_ioapic_affinity() for real for clustered APIC > mode? What is involved in that? The clustered hierarchical destination format formats destinations as bits | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | -------------------------------------- | cluster id no | local cpumask | -------------------------------------- which can only describe 15*16 of the 2**60 nonempty subsets of 60 cpus. -- wli