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authorJonathan Nieder <jrnieder@gmail.com>2012-02-28 11:51:10 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-02-28 11:09:09 -0800
commit8411371709610c826bf65684f886bfdfb5780ca1 (patch)
tree7d536d5fb26e39d1c86ce776a0b46cf3a585d483
parent1cc1c96c1658bfaf85d06d764bd7ac00640ae90f (diff)
downloadop-kernel-dev-8411371709610c826bf65684f886bfdfb5780ca1.zip
op-kernel-dev-8411371709610c826bf65684f886bfdfb5780ca1.tar.gz
x86/PCI: use host bridge _CRS info on MSI MS-7253
In the spirit of commit 29cf7a30f8a0 ("x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE"), this DMI quirk turns on "pci_use_crs" by default on a board that needs it. This fixes boot failures and oopses introduced in 3e3da00c01d0 ("x86/pci: AMD one chain system to use pci read out res"). The quirk is quite targetted (to a specific board and BIOS version) for two reasons: (1) to emphasize that this method of tackling the problem one quirk at a time is a little insane (2) to give BIOS vendors an opportunity to use simpler tables and allow us to return to generic behavior (whatever that happens to be) with a later BIOS update In other words, I am not at all happy with having quirks like this. But it is even worse for the kernel not to work out of the box on these machines, so... Reference: https://bugzilla.kernel.org/show_bug.cgi?id=42619 Reported-by: Svante Signell <svante.signell@telia.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
-rw-r--r--arch/x86/pci/acpi.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c33e097..7034c08 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -60,6 +60,17 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = {
DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
},
},
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=42619 */
+ {
+ .callback = set_use_crs,
+ .ident = "MSI MS-7253",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+ DMI_MATCH(DMI_BOARD_NAME, "MS-7253"),
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+ DMI_MATCH(DMI_BIOS_VERSION, "V1.6"),
+ },
+ },
/* Now for the blacklist.. */
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