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drm/radeon: fix ring commit padding

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We don't need to pad anything if the number of dwords
written to the ring already matches the requirements.

Fixes some "writting more dword to ring than expected"
warnings.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Jerome Glisse <[email protected]>
Reviewed-by: Michel Dänzer <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
This commit is contained in:
Christian König 2012-07-07 12:11:32 +02:00
commit 07a713305a
1 changed files with 1 additions and 6 deletions
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7
drivers/gpu/drm/radeon/radeon_ring.c
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@ -272,13 +272,8 @@ int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsig
void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
{
unsigned count_dw_pad;
unsigned i;
/* We pad to match fetch size */
count_dw_pad = (ring->align_mask + 1) -
(ring->wptr & ring->align_mask);
for (i = 0; i < count_dw_pad; i++) {
while (ring->wptr & ring->align_mask) {
radeon_ring_write(ring, ring->nop);
}
DRM_MEMORYBARRIER();