From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754446AbZBXD4y (ORCPT ); Mon, 23 Feb 2009 22:56:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751711AbZBXD4p (ORCPT ); Mon, 23 Feb 2009 22:56:45 -0500 Received: from straum.hexapodia.org ([64.81.70.185]:46254 "EHLO straum.hexapodia.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751277AbZBXD4p (ORCPT ); Mon, 23 Feb 2009 22:56:45 -0500 Date: Mon, 23 Feb 2009 19:56:43 -0800 From: Andy Isaacson To: Maciej Rutecki Cc: "Rafael J. Wysocki" , Eric Anholt , Linus Torvalds , Linux Kernel Mailing List , Jesse Barnes , "lenb@kernel.org" , Ingo Molnar , mjg@redhat.com, Andrew Morton , rui.zhang@intel.com, airlied@redhat.com Subject: Re: [Linux 2.6.29-rc6] [drm:i915_set_status_page] *ERROR* can not ioremap virtual address for G33 hw status page Message-ID: <20090224035643.GA13066@hexapodia.org> References: <8db1092f0902230646o78a07a09t920ad65369b5a20d@mail.gmail.com> <1235419343.4816.27.camel@gaiman> <200902232230.29501.rjw@sisk.pl> <8db1092f0902231340k7c7d0fd1me49302f2efd03491@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=unknown-8bit Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8db1092f0902231340k7c7d0fd1me49302f2efd03491@mail.gmail.com> User-Agent: Mutt/1.4.2.3i X-GPG-Fingerprint: 1914 0645 FD53 C18E EEEF C402 4A69 B1F3 68D2 A63F X-GPG-Key-URL: http://web.hexapodia.org/~adi/gpg.txt X-Domestic-Surveillance: money launder bomb tax evasion Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 23, 2009 at 10:40:36PM +0100, Maciej Rutecki wrote: > 2009/2/23 Rafael J. Wysocki : > > This is a serious regression on this particular hardware, though. > > We need it fixed before 2.6.29-final, this way or another. > > root@zlom:/usr/src/git/linux-2.6# git bisect bad > 6fb88588555a18792a27f483887fe1f2af5f9c9b is first bad commit > commit 6fb88588555a18792a27f483887fe1f2af5f9c9b > Author: Jesse Barnes > Date: Mon Feb 23 10:08:21 2009 +1000 > > drm/i915: fix WC mapping in non-GEM i915 code. > > [airlied - taken from mailing list posting] > > Signed-off-by: Dave Airlie > > :040000 040000 94fbea685d2937dbe9f3ef861283724262d8443f > 451872e14d914a3457adf9c144a705b646d887b4 M drivers > > Revert this commit helps, and Xwindow works, still (like in previous > -rc*) I have this message: > [ 16.897361] mtrr: type mismatch for d0000000,10000000 old: > write-back new: write-combining > [ 16.897369] [drm] MTRR allocation failed > [ 16.897371] . Graphics performance may suffer. > [ 16.897401] pci 0000:00:02.0: irq 27 for MSI/MSI-X > [ 16.897432] [drm] Initialized i915 1.6.0 20080730 on minor 0 > [ 16.931100] mtrr: type mismatch for d0000000,10000000 old: > write-back new: write-combining > [ 17.397378] set status page addr 0x00043000 > > but I don't notice any problems. Same here (Dell E6400). Reverting 6fb885 gets X working again; I have "MTRR allocation failed" in dmesg, but performance seems OK. Oddly, though, 2.6.29-rc6 works just fine on Dell E4300 which appears to have the same chipset, same PCI id, etc. On E4300 with -rc6 I see [ 0.895956] Linux agpgart interface v0.103 [ 0.896076] agpgart-intel 0000:00:00.0: Intel Mobile Intel® GM45 Express Chipset [ 0.898082] agpgart-intel 0000:00:00.0: detected 32764K stolen memory [ 0.901880] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000 [ 0.902083] [drm] Initialized drm 1.1.0 20060810 [ 0.902247] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 0.902357] pci 0000:00:02.0: setting latency timer to 64 [ 0.917157] mtrr: type mismatch for e0000000,10000000 old: write-back new: write-combining [ 0.917327] [drm] MTRR allocation failed [ 0.917328] . Graphics performance may suffer. [ 0.917551] pci 0000:00:02.0: irq 27 for MSI/MSI-X [ 0.917564] [drm] Initialized i915 1.6.0 20080730 on minor 0 and X works just fine. -andy