https://bugzilla.kernel.org/show_bug.cgi?id=68591
--- Comment #6 from Bodo Eggert <7egg...@gmx.de> ---
commit 7bc5e3f2be32ae6fb0c74cd0f707f986b3a01a26
Author: Bjorn Helgaas <bjorn.helg...@hp.com>
Date: Tue Feb 23 10:24:41 2010 -0700
x86/PCI: use host bridge _CRS info by default on 2008 and newer machines
The main benefit of using ACPI host bridge window information is that
we can do better resource allocation in systems with multiple host bridges,
e.g., http://bugzilla.kernel.org/show_bug.cgi?id=14183
Sometimes we need _CRS information even if we only have one host bridge,
e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/341681
Most of these systems are relatively new, so this patch turns on
"pci=use_crs" only on machines with a BIOS date of 2008 or newer.
Signed-off-by: Bjorn Helgaas <bjorn.helg...@hp.com>
Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
-----------------------------------
pci=nocrs allows booting current kernels (kubuntu live 13.x), so this is the
correct bug this time.
What do you need to know for a workaround?
Mainboard: Asrock M3A UCC
BIOS Date: 08/26/11
Version: 1.40 (and 1.30)
---«lspci -nnM»--------------
00:00.0 Host bridge [0600]: ATI Technologies Inc Radeon Xpress 200
(RS480/RS482/RX480/RX482) Chipset - Host bridge [1002:5951] (rev 01)
00:02.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI-X Root Port
[1002:5a34]
## 00.02:0 is a bridge from 00 to 01-01
00:05.0 PCI bridge [0604]: ATI Technologies Inc RS480 PCI Bridge [1002:5a37]
## 00.05:0 is a bridge from 00 to 03-03
00:12.0 SATA controller [0106]: ATI Technologies Inc SB600 Non-Raid-5 SATA
[1002:4380]
00:13.0 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI0)
[1002:4387]
00:13.1 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI1)
[1002:4388]
00:13.2 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI2)
[1002:4389]
00:13.3 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI3)
[1002:438a]
00:13.4 USB Controller [0c03]: ATI Technologies Inc SB600 USB (OHCI4)
[1002:438b]
00:13.5 USB Controller [0c03]: ATI Technologies Inc SB600 USB Controller (EHCI)
[1002:4386]
00:14.0 SMBus [0c05]: ATI Technologies Inc SBx00 SMBus Controller [1002:4385]
(rev 13)
00:14.1 IDE interface [0101]: ATI Technologies Inc SB600 IDE [1002:438c]
00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia (Intel HDA)
[1002:4383]
00:14.3 ISA bridge [0601]: ATI Technologies Inc SB600 PCI to LPC Bridge
[1002:438d]
00:14.4 PCI bridge [0604]: ATI Technologies Inc SBx00 PCI to PCI Bridge
[1002:4384]
## 00.14:4 is a bridge from 00 to 02-02
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor
HyperTransport Configuration [1022:1200]
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor
Address Map [1022:1201]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor
DRAM Controller [1022:1202]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor
Miscellaneous Control [1022:1203]
00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor
Link Control [1022:1204]
01:00.0 VGA compatible controller [0300]: nVidia Corporation G92 [GeForce 9800
GT] [10de:0614] (rev a2)
02:05.0 Network controller [0280]: Cologne Chip Designs GmbH ISDN network
controller [HFC-PCI] [1397:2bd0] (rev 02)
02:07.0 SCSI storage controller [0100]: Advanced Micro Devices [AMD] 53c974
[PCscsi] [1022:2020] (rev 10)
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)
Summary of buses:
00: Primary host bus
14.4 Bridge to 02-02
05.0 Bridge to 03-03
02.0 Bridge to 01-01
01: Entered via 00:02.0
02: Entered via 00:14.4
03: Entered via 00:05.0
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