diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2011-09-01 17:46:15 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:04 -0700 |
| commit | 10927d967aa3e7031b0a573be8f002af607e6227 (patch) | |
| tree | 890f4f10ba071cc90cfbd07c2658a926b9aaf705 /mm | |
| parent | 34b64435133e6feea81571344077738cfd4f7ede (diff) | |
drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
commit d054ac16eeb658bccadb06b12c39cee22243b10f upstream.
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>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions