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drm/radeon: fix scratch reg handling for UVD fence 

Also init the scratch reg to zero on the UVD ring.
This fixes UVD on AGP based cards.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2013-04-24 14:11:09 +02:00 committed by Alex Deucher
parent 7220f639c2
commit 581bc3a9f6
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/radeon_fence.c
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@ -767,8 +767,8 @@ int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring)
radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
if (rdev->wb.use_event || !radeon_ring_supports_scratch_reg(rdev, &rdev->ring[ring])) {
rdev->fence_drv[ring].scratch_reg = 0;
if (ring != R600_RING_TYPE_UVD_INDEX) {
rdev->fence_drv[ring].scratch_reg = 0;
index = R600_WB_EVENT_OFFSET + ring * 4;
rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4];
rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr +