| commit | d054ac16eeb658bccadb06b12c39cee22243b10f | |
| author | Alex Deucher <alexander.deucher@amd.com> | |
| Thu, 1 Sep 2011 17:46:15 +0000 (1 17:46 +0000) | ||
| committer | Dave Airlie <airlied@redhat.com> | |
| Fri, 2 Sep 2011 08:40:20 +0000 (2 09:40 +0100) | ||
| tree | 22a3382e7ceb3469e6723cf6ce42828e42a35df6 | treesnapshot (tar.gz zip) |
| parent | 9adceaa5b3d2480e2252c4a7f9c4bd7d66b8c4a2 | commitdiff |
drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
If the bios or OS sets the pci max read request size to 0 or an
invalid value (6,7), it can result in a hang or slowdown. Check
and set it to something sane if it's invalid.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=42162
v2: use pci reg defines from include/linux/pci_regs.h
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
If the bios or OS sets the pci max read request size to 0 or an
invalid value (6,7), it can result in a hang or slowdown. Check
and set it to something sane if it's invalid.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=42162
v2: use pci reg defines from include/linux/pci_regs.h
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| drivers/gpu/drm/radeon/evergreen.c | diffblobblamehistory | |
| drivers/gpu/drm/radeon/ni.c | diffblobblamehistory |