Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 23 Sep 2002 17:19:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 23 Sep 2002 17:19:14 -0400 Received: from deimos.hpl.hp.com ([192.6.19.190]:28665 "EHLO deimos.hpl.hp.com") by vger.kernel.org with ESMTP id ; Mon, 23 Sep 2002 17:19:10 -0400 From: David Mosberger MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15759.34428.608321.969391@napali.hpl.hp.com> Date: Mon, 23 Sep 2002 14:24:12 -0700 To: "David S. Miller" Cc: davidm@hpl.hp.com, davidm@napali.hpl.hp.com, dmo@osdl.org, axboe@suse.de, phillips@arcor.de, _deepfire@mail.ru, linux-kernel@vger.kernel.org Subject: Re: DAC960 in 2.5.38, with new changes In-Reply-To: <20020923.135708.10698522.davem@redhat.com> References: <15759.26918.381273.951266@napali.hpl.hp.com> <20020923.134000.123546377.davem@redhat.com> <15759.32569.964762.776074@napali.hpl.hp.com> <20020923.135708.10698522.davem@redhat.com> X-Mailer: VM 7.07 under Emacs 21.2.1 Reply-To: davidm@hpl.hp.com X-URL: http://www.hpl.hp.com/personal/David_Mosberger/ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 815 Lines: 20 >>>>> On Mon, 23 Sep 2002 13:57:08 -0700 (PDT), "David S. Miller" said: >> On many platforms, two consequetive __raw_writel()'s might even >> combine to an atomic 64-bit store to PCI space. :-) Yes, but that's no guarantee. >> I don't think the proposed 32-bit behavior is off the mark, and >> anyways x86 can actually make the 64-bit store I believe if it >> wants at least on more recent processors. Surely we wouldn't want to define a new API that can't be supported on all 32-bit platforms, no? Perhaps writeq_nonatomic()? --david - 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/