From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760907AbZEGLCT (ORCPT ); Thu, 7 May 2009 07:02:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753706AbZEGLCF (ORCPT ); Thu, 7 May 2009 07:02:05 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:51194 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752310AbZEGLCE (ORCPT ); Thu, 7 May 2009 07:02:04 -0400 Date: Thu, 7 May 2009 13:01:35 +0200 From: Ingo Molnar To: FUJITA Tomonori Cc: joerg.roedel@amd.com, dwmw2@infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mingo@redhat.com, airlied@linux.ie Subject: Re: IOMMU and graphics cards Message-ID: <20090507110135.GC28398@elte.hu> References: <20090428160448.GA17438@amd.com> <20090507164742V.fujita.tomonori@lab.ntt.co.jp> <20090507100114.GF4059@amd.com> <20090507191724N.fujita.tomonori@lab.ntt.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090507191724N.fujita.tomonori@lab.ntt.co.jp> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * FUJITA Tomonori wrote: > > 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 don't know anything about the graphic drivers but are there any > other proprietary drivers except for ATI and AMD? Fixing only two > drivers to make the majority happy? ATI ~== AMD these days. The problem is Nvidia cards stuck into AMD systems. I guess refusing those DMA accesses (and printing something meaningful and relentlessly honest so that the user knows where the problem comes from) is the proper solution. There will be some end-user moaning, there might be distros turning off the IOMMU code summarily, but nvidia-in-AMD-box is an unfriendly alliance to begin with. Ingo