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drm/radeon: rework UVD writeback & [rw]ptr handling

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The hardware just doesn't support this correctly.
Disable it before we accidentally write anywhere we shouldn't.

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
2013-08-13 11:56:51 +02:00
committed by Alex Deucher
parent 76a0df859d
commit 02c9f7fa4e
10 changed files with 38 additions and 31 deletions
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3
drivers/gpu/drm/radeon/si.c
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@@ -6416,8 +6416,7 @@ static int si_startup(struct radeon_device *rdev)
if (rdev->has_uvd) {
ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
if (ring->ring_size) {
r = radeon_ring_init(rdev, ring, ring->ring_size,
R600_WB_UVD_RPTR_OFFSET,
r = radeon_ring_init(rdev, ring, ring->ring_size, 0,
UVD_RBC_RB_RPTR, UVD_RBC_RB_WPTR,
0, 0xfffff, RADEON_CP_PACKET2);
if (!r)