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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2008-06-09 22:10:48 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-12 12:11:25 (GMT) |
| commit | 6703f6d10dcd3316e03641a5ecaa6c8a04374d98 (patch) | |
| tree | f8c1d9bbc5695979d2ad822a7bccb42f375dc904 /arch/x86/kernel/aperture_64.c | |
| parent | bb6dfb32f90094fea647e1f27d994a8b6ddd2766 (diff) | |
| download | linux-6703f6d10dcd3316e03641a5ecaa6c8a04374d98.tar.xz | |
x86, gart: add resume handling
If GART IOMMU is used on an AMD64 system, the northbridge registers
related to it should be restored during resume so that memory is not
corrupted. Make gart_resume() handle that as appropriate.
Ref. http://lkml.org/lkml/2008/5/25/96 and the following thread.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/aperture_64.c')
| -rw-r--r-- | arch/x86/kernel/aperture_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index eb20f16..3409abb 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -496,4 +496,6 @@ out: write_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE, aper_alloc >> 25); } } + + set_up_gart_resume(aper_order, aper_alloc); } |