From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757291AbZEDPSA (ORCPT ); Mon, 4 May 2009 11:18:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753846AbZEDPRw (ORCPT ); Mon, 4 May 2009 11:17:52 -0400 Received: from darkcity.gna.ch ([195.226.6.51]:36063 "EHLO mail.gna.ch" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751567AbZEDPRv convert rfc822-to-8bit (ORCPT ); Mon, 4 May 2009 11:17:51 -0400 X-Greylist: delayed 603 seconds by postgrey-1.27 at vger.kernel.org; Mon, 04 May 2009 11:17:51 EDT Subject: Re: PROBLEM: 2.6.29.2 - AGP doesn't work anymore on my nforce2 From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Karsten Mehrhoff Cc: Shaohua Li , Dave Airlie , "linux-kernel@vger.kernel.org" , Andrew Morton , "dri-devel@lists.sourceforge.net" , "stable@kernel.org" In-Reply-To: References: <20090430175927.a89f1cd3.akpm@linux-foundation.org> <1241179733.2606.1.camel@localhost.localdomain> <55bc079c-5c3d-465a-be28-0e38c0b48b14@rrsmsx603.amr.corp.intel.com> <20090504014151.GA22872@sli10-desk.sh.intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Mon, 04 May 2009 17:07:40 +0200 Message-Id: <1241449660.24202.1041.camel@thor.local> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2009-05-04 at 08:31 +0200, Karsten Mehrhoff wrote: > On Mon, 04 May 2009 03:41:51 +0200, Shaohua Li wrote: > > On Fri, May 01, 2009 at 09:22:19PM +0800, kawime@gmx.de wrote: > >>> On Thu, 2009-04-30 at 17:59 -0700, Andrew Morton wrote: > >>>> On Thu, 30 Apr 2009 10:51:47 +0200 > >>>> Karsten Mehrhoff wrote: > >>>> > >>>>> [1.] > >>>>> PROBLEM: No more agp card functionality with the patch 2.6.29.2 of > >>>> 'a/drivers/char/agp/generic.c' > >>>>> > >>>>> [2.] > >>>>> I compiled the kernel 2.6.29.2 with my .config of 2.6.29.1 and run > >>>> into problems with the speed of my ATI RADEON 9600 (rv350) > >>>>> > >>>> > >>> > >>> Is your problem speed issue ? ie just a slowdown ? Or does AGP stop > >>> working with this patch ? Slowdown is expected from this patch but > >>> it should hurt too much. > >>> > >> > >> 2.6.29.1 | 2.6.29.2 > >> -------- | -------- > >> glxgears ~ 2900 FPS | ~ 75 FPS > >> glxgears -fullscreen ~ 500 FPS | ~ 11 FPS > > Does this patch alone give so huge slowdown? From my little knowledge, > > xserver > > does agp pages allocation only at startup. > > I only reverted this patch in the source file (/drivers/char/agp/generic.c) and got back my old speed on 2.6.29.2. Is the DRI enabled in both cases? Compare the Xorg.0.log file and the output of dmesg|grep -e agp -e drm -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer