diff options
| author |   Jerome Glisse <jglisse@redhat.com> | 2013-06-06 17:51:21 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2013-06-12 08:16:29 -0400 |
| commit | 089920f21db0108fb105ecfd81de4c92d88f06d0 (patch) | |
| tree | 2bdece83b9d396767ff6795b110af36a2dd0c388 /drivers/gpu/drm/radeon/radeon_uvd.c | |
| parent | drm/radeon: do not try to uselessly update virtual memory pagetable (diff) | |
| download | linux-dev-089920f21db0108fb105ecfd81de4c92d88f06d0.tar.xz linux-dev-089920f21db0108fb105ecfd81de4c92d88f06d0.zip | |
drm/radeon: fix write back suspend regression with uvd v2
UVD ring can't use scratch thus it does need writeback buffer to keep
a valid address or radeon_ring_backup will trigger a kernel fault.
It's ok to not unpin the write back buffer on suspend as it leave in
gtt and thus does not need eviction.
v2: Fix the uvd case.
Reported and tracked by Wojtek <wojtask9@wp.pl>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_uvd.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_uvd.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c index 906e5c0ca3b9..9f55adefa8e0 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -159,7 +159,17 @@ int radeon_uvd_suspend(struct radeon_device *rdev) if (!r) { radeon_bo_kunmap(rdev->uvd.vcpu_bo); radeon_bo_unpin(rdev->uvd.vcpu_bo); + rdev->uvd.cpu_addr = NULL; + if (!radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_CPU, NULL)) { + radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr); + } radeon_bo_unreserve(rdev->uvd.vcpu_bo); + + if (rdev->uvd.cpu_addr) { + radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX); + } else { + rdev->fence_drv[R600_RING_TYPE_UVD_INDEX].cpu_addr = NULL; + } } return r; } @@ -178,6 +188,10 @@ int radeon_uvd_resume(struct radeon_device *rdev) return r; } + /* Have been pin in cpu unmap unpin */ + radeon_bo_kunmap(rdev->uvd.vcpu_bo); + radeon_bo_unpin(rdev->uvd.vcpu_bo); + r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM, &rdev->uvd.gpu_addr); if (r) { |