From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761145AbZEGKWV (ORCPT ); Thu, 7 May 2009 06:22:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756060AbZEGKWL (ORCPT ); Thu, 7 May 2009 06:22:11 -0400 Received: from casper.infradead.org ([85.118.1.10]:40624 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755419AbZEGKWK (ORCPT ); Thu, 7 May 2009 06:22:10 -0400 Subject: Re: IOMMU and graphics cards From: David Woodhouse To: Joerg Roedel Cc: FUJITA Tomonori , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mingo@redhat.com, airlied@linux.ie In-Reply-To: <20090507100114.GF4059@amd.com> References: <20090428150531.GZ17438@amd.com> <1240932530.2567.91.camel@macbook.infradead.org> <20090428160448.GA17438@amd.com> <20090507164742V.fujita.tomonori@lab.ntt.co.jp> <20090507100114.GF4059@amd.com> Content-Type: text/plain Date: Thu, 07 May 2009 11:22:01 +0100 Message-Id: <1241691721.3531.73.camel@macbook.infradead.org> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 (2.26.1-2.fc11) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2009-05-07 at 12:01 +0200, Joerg Roedel wrote: > > Looks like the DRM code uses the DMA API. > > The proprietary drivers make problems so far. For the ATI one I am in > contact with the developers to try to fix it. But I can't do anything > about the other proprietary driver I am aware of :-( I see no harm in "breaking" code which was already broken. If that's the only reason we're enabling the graphics workaround, let's turn it off. -- David Woodhouse Open Source Technology Centre David.Woodhouse@intel.com Intel Corporation