diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2015-06-09 18:54:07 -0500 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-10-22 09:20:03 +0800 |
| commit | 61473c581da9f97ea703b8b1a693300e138456e1 (patch) | |
| tree | c27307fbfa1cf6539ed8fba4a257b33a13661c80 | |
| parent | 0e782ba3f77e7474d0ea1d04a739396b2436cf54 (diff) | |
x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
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: [<ffffffffa0345f63>] 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 <bhelgaas@google.com>
Signed-off-by: Zefan Li <lizefan@huawei.com>
| -rw-r--r-- | arch/x86/pci/acpi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index ed2835e148b5..65cf4f22bd6e 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -70,6 +70,17 @@ static const struct dmi_system_id pci_use_crs_table[] __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.. */ |