From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 21 May 2001 06:05:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 21 May 2001 06:05:23 -0400 Received: from penguin.e-mind.com ([195.223.140.120]:8561 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Mon, 21 May 2001 06:05:16 -0400 Date: Mon, 21 May 2001 12:02:28 +0200 From: Andrea Arcangeli To: Andi Kleen Cc: "David S. Miller" , Andrew Morton , Ivan Kokshaysky , Richard Henderson , linux-kernel@vger.kernel.org Subject: Re: alpha iommu fixes Message-ID: <20010521120228.J30738@athlon.random> In-Reply-To: <3B07CF20.2ABB5468@uow.edu.au> <20010520163323.G18119@athlon.random> <15112.26868.5999.368209@pizda.ninka.net> <20010521034726.G30738@athlon.random> <15112.48708.639090.348990@pizda.ninka.net> <20010521105944.H30738@athlon.random> <15112.55709.565823.676709@pizda.ninka.net> <20010521112357.A1718@gruyere.muc.suse.de> <15112.57377.723591.710628@pizda.ninka.net> <20010521114216.A1968@gruyere.muc.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20010521114216.A1968@gruyere.muc.suse.de>; from ak@suse.de on Mon, May 21, 2001 at 11:42:16AM +0200 X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 21, 2001 at 11:42:16AM +0200, Andi Kleen wrote: > [actually most IA32 boxes already have one in form of the AGP GART, it's just > not commonly used for serious things yet] I can be really wrong on this because I didn't checked anything about the GART yet but I suspect you cannot use the GART for this stuff on ia32 in 2.4 because I think I recall it provides not an huge marging of mapping entries that so would far too easily trigger the bugs in the device drivers not checking for pci_map_* faliures also in a common desktop/webserver/fileserver kind of usage of an high end machine. Andrea