diff options
| author | Dave Airlie <airlied@redhat.com> | 2012-04-03 14:53:05 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-12 12:27:47 +0400 |
| commit | 2099810f903caa1920f3ef6014fb7f36e4786490 (patch) | |
| tree | d1cc8db0b4e224c83ccd5ea071102212b37185a3 /drivers/gpu/drm/radeon/r100.c | |
| parent | 0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff) | |
| download | linux-2099810f903caa1920f3ef6014fb7f36e4786490.tar.xz | |
drm/radeon: enable pci bus mastering after card is initialised (v2)
This closes a race seen with kexec where we enable PCI bus mastering
but the card has been reinitialised fully yet.
This was previously fixed by a patch from Jerome, but this should
close the race completely.
v2: add SI support as suggested by Alex.
Reported-and-tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r100.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 81801c176aa5..e11df778e194 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -1180,6 +1180,10 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size) WREG32(RADEON_CP_RB_WPTR_DELAY, 0); WREG32(RADEON_CP_CSQ_MODE, 0x00004D4D); WREG32(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIBM_INDBM); + + /* at this point everything should be setup correctly to enable master */ + pci_set_master(rdev->pdev); + radeon_ring_start(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]); r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, ring); if (r) { |