Doug / smarc-fsl-linux-kernel

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Commit 8411371709610c826bf65684f886bfdfb5780ca1

Authored by Jonathan Nieder
Committed by Jesse Barnes
1 parent 1cc1c96c16
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

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>

Showing 1 changed file with 11 additions and 0 deletions Side-by-side Diff

... ... @@ -60,6 +60,17 @@
60 60 DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
61 61 },
62 62 },
  63 + /* https://bugzilla.kernel.org/show_bug.cgi?id=42619 */
  64 + {
  65 + .callback = set_use_crs,
  66 + .ident = "MSI MS-7253",
  67 + .matches = {
  68 + DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
  69 + DMI_MATCH(DMI_BOARD_NAME, "MS-7253"),
  70 + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
  71 + DMI_MATCH(DMI_BIOS_VERSION, "V1.6"),
  72 + },
  73 + },
63 74  
64 75 /* Now for the blacklist.. */
65 76