diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-01-17 17:41:21 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-02-14 08:44:49 -0800 |
| commit | 316d86fe8641abfad32702c77d9e62cf19e68b00 (patch) | |
| tree | d3f32aaf5deaea326b225bd22f8a2e760eae3266 /drivers/pci/setup-res.c | |
| parent | 11608318037f07fe08d64ebcd3f65691cfd77076 (diff) | |
x86/PCI: don't fall back to defaults if _CRS has no apertures
Host bridges that lead to things like the Uncore need not have any
I/O port or MMIO apertures. For example, in this case:
ACPI: PCI Root Bridge [UNC1] (domain 0000 [bus ff])
PCI: root bus ff: using default resources
PCI host bridge to bus 0000:ff
pci_bus 0000:ff: root bus resource [io 0x0000-0xffff]
pci_bus 0000:ff: root bus resource [mem 0x00000000-0x3fffffffffff]
we should not pretend those default resources are available on bus ff.
CC: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/setup-res.c')
0 files changed, 0 insertions, 0 deletions