x86/PCI: amd: factor out MMCONFIG discovery

Browse source

This factors out the AMD native MMCONFIG discovery so we can use it
outside amd_bus.c.

amd_bus.c reads AMD MSRs so it can remove the MMCONFIG area from the
PCI resources.  We may also need the MMCONFIG information to work
around BIOS defects in the ACPI MCFG table.

Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: stable@kernel.org       # 2.6.34+
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

...

This commit is contained in:

Bjorn Helgaas 2012-01-05 14:27:19 -07:00 • committed by Jesse Barnes

parent 1900ca132f

commit 24d25dbfa6

3 changed files with 44 additions and 31 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/x86/include/asm/amd_nb.h

View file

31

arch/x86/kernel/amd_nb.c

View file

42

arch/x86/pci/amd_bus.c

View file