Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751115AbWAYLKq (ORCPT ); Wed, 25 Jan 2006 06:10:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751117AbWAYLKq (ORCPT ); Wed, 25 Jan 2006 06:10:46 -0500 Received: from mail.ocs.com.au ([202.147.117.210]:22468 "EHLO mail.ocs.com.au") by vger.kernel.org with ESMTP id S1751115AbWAYLKq (ORCPT ); Wed, 25 Jan 2006 06:10:46 -0500 X-Mailer: exmh version 2.7.0 06/18/2004 with nmh-1.1-RC1 From: Keith Owens To: eranian@hpl.hp.com cc: "Bryan O'Sullivan" , linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/6] 2.6.16-rc1 perfmon2 patch for review In-reply-to: Your message of "Tue, 24 Jan 2006 07:13:25 -0800." <20060124151325.GC7130@frankl.hpl.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 25 Jan 2006 22:10:44 +1100 Message-ID: <23407.1138187444@ocs3.ocs.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 958 Lines: 17 Stephane Eranian (on Tue, 24 Jan 2006 07:13:25 -0800) wrote: >Well, I am not sure why the smp_call_function_single() is not already >implemented for i386. I can see that the underlying function send_IPI_mask() >is there. It also looks like flush_tlb_others() is also selecting CPUs a subset >of CPUs. I am not a big enough expert on x86 to understand if there are gotchas >to watch for. Yet it would surprise me if this is radically different than on >x86_64 (em64t) which already has the call. Maybe someone can clarify this? There is no hardware reason why smp_call_function_single() cannot be implemented on i386. The only reason it has not been implemented on i386 is that nobody has had a need for it yet. - 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/