Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756617AbbGPB6H (ORCPT ); Wed, 15 Jul 2015 21:58:07 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:55623 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754543AbbGPBKj (ORCPT ); Wed, 15 Jul 2015 21:10:39 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Bjorn Helgaas , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 096/251] x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A Date: Wed, 15 Jul 2015 18:06:57 -0700 Message-Id: <1437008972-9140-97-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1437008972-9140-1-git-send-email-kamal@canonical.com> References: <1437008972-9140-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2916 Lines: 70 3.19.8-ckt4 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Bjorn Helgaas commit 1dace0116d0b05c967d94644fc4dfe96be2ecd3d upstream. The Foxconn K8M890-8237A has two PCI host bridges, and we can't assign resources correctly without the information from _CRS that tells us which address ranges are claimed by which bridge. In the bugs mentioned below, we incorrectly assign a sound card address (this example is from 1033299): bus: 00 index 2 [mem 0x80000000-0xfcffffffff] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-7f]) pci_root PNP0A08:00: host bridge window [mem 0x80000000-0xbfefffff] (ignored) pci_root PNP0A08:00: host bridge window [mem 0xc0000000-0xdfffffff] (ignored) pci_root PNP0A08:00: host bridge window [mem 0xf0000000-0xfebfffff] (ignored) ACPI: PCI Root Bridge [PCI1] (domain 0000 [bus 80-ff]) pci_root PNP0A08:01: host bridge window [mem 0xbff00000-0xbfffffff] (ignored) pci 0000:80:01.0: [1106:3288] type 0 class 0x000403 pci 0000:80:01.0: reg 10: [mem 0xbfffc000-0xbfffffff 64bit] pci 0000:80:01.0: address space collision: [mem 0xbfffc000-0xbfffffff 64bit] conflicts with PCI Bus #00 [mem 0x80000000-0xfcffffffff] pci 0000:80:01.0: BAR 0: assigned [mem 0xfd00000000-0xfd00003fff 64bit] BUG: unable to handle kernel paging request at ffffc90000378000 IP: [] azx_create+0x37c/0x822 [snd_hda_intel] We assigned 0xfd_0000_0000, but that is not in any of the host bridge windows, and the sound card doesn't work. Turn on pci=use_crs automatically for this system. Link: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/931368 Link: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033299 Signed-off-by: Bjorn Helgaas Signed-off-by: Kamal Mostafa --- arch/x86/pci/acpi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index cfd1b13..7dc56c0 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -84,6 +84,17 @@ static const struct dmi_system_id pci_crs_quirks[] __initconst = { DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"), }, }, + /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/931368 */ + /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033299 */ + { + .callback = set_use_crs, + .ident = "Foxconn K8M890-8237A", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Foxconn"), + DMI_MATCH(DMI_BOARD_NAME, "K8M890-8237A"), + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"), + }, + }, /* Now for the blacklist.. */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/