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android_kernel_google_msm/arch/x86
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Bjorn Helgaas 61473c581d 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>
2015-10-22 09:20:03 +08:00
..
boot x86, build: Pass in additional -mno-mmx, -mno-sse options 2014-06-07 16:02:08 -07:00
configs
crypto crypto: aesni - fix memory usage in GCM decryption 2015-06-19 11:40:28 +08:00
ia32 x86-64: Replace left over sti/cli in ia32 audit exit code 2013-02-11 08:47:18 -08:00
include/asm x86, kvm: fix kvm's usage of kernel_fpu_begin/end() 2015-09-18 09:20:46 +08:00
kernel x86, kvm: fix kvm's usage of kernel_fpu_begin/end() 2015-09-18 09:20:46 +08:00
kvm x86, kvm: fix kvm's usage of kernel_fpu_begin/end() 2015-09-18 09:20:46 +08:00
lguest x86, mm: Patch out arch_flush_lazy_mmu_mode() when running on bare metal 2013-04-16 21:27:27 -07:00
lib x86-64: Fix the failure case in copy_user_handle_tail() 2013-03-28 12:12:26 -07:00
math-emu
mm x86, mm/ASLR: Fix stack randomization on 64-bit systems 2015-04-14 17:33:58 +08:00
net x86: bpf_jit: fix compilation of large bpf programs 2015-09-18 09:20:42 +08:00
oprofile oprofile, x86: Fix wrapping bug in op_x86_get_ctrl() 2012-10-28 10:14:13 -07:00
pci x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A 2015-10-22 09:20:03 +08:00
platform x86/efi: Fix dummy variable buffer allocation 2014-06-07 16:02:10 -07:00
power perf,x86: fix kernel crash with PEBS/BTS after suspend/resume 2013-03-20 13:04:59 -07:00
syscalls x86, x32: Use compat shims for io_{setup,submit} 2014-06-30 20:01:33 -07:00
tools
um x86, um: actually mark system call tables readonly 2015-04-14 17:33:49 +08:00
vdso x86/vdso: Fix the build on GCC5 2015-06-19 11:40:25 +08:00
video
xen xen/smp/spinlock: Fix leakage of the spinlock interrupt line for every CPU online/offline 2014-03-11 16:10:06 -07:00
.gitignore
Kbuild
Kconfig config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected 2015-06-19 11:40:34 +08:00
Kconfig.cpu
Kconfig.debug
Makefile kbuild: Fix gcc -x syntax 2012-10-13 05:38:37 +09:00
Makefile.um
Makefile_32.cpu