Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263588AbUC3NAk (ORCPT ); Tue, 30 Mar 2004 08:00:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263638AbUC3NAg (ORCPT ); Tue, 30 Mar 2004 08:00:36 -0500 Received: from cpc3-cwma1-6-0-cust199.swan.cable.ntl.com ([81.101.209.199]:58070 "EHLO dhcp23.swansea.linux.org.uk") by vger.kernel.org with ESMTP id S263588AbUC3NAf (ORCPT ); Tue, 30 Mar 2004 08:00:35 -0500 Subject: Re: [ACPI] Re: Linux 2.4.26-rc1 (cmpxchg vs 80386 build) From: Alan Cox To: Len Brown Cc: Willy Tarreau , Arkadiusz Miskiewicz , Marcelo Tosatti , Linux Kernel Mailing List , ACPI Developers In-Reply-To: <1080598062.983.3.camel@dhcppc4> References: <1080535754.16221.188.camel@dhcppc4> <20040329052238.GD1276@alpha.home.local> <1080598062.983.3.camel@dhcppc4> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1080651370.25228.1.camel@dhcp23.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-7) Date: Tue, 30 Mar 2004 13:56:12 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 609 Lines: 14 On Llu, 2004-03-29 at 23:07, Len Brown wrote: > Linux uses this locking mechanism to coordinate shared access > to hardware registers with embedded controllers, > which is true also on uniprocessors too. If the ACPI layer simply refuses to run on a CPU without cmpxchg then I can't see there being a problem, there don't appear to be any 386 processors with ACPI - 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/