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| author | Christian König <christian.koenig@amd.com> | 2013-11-12 12:58:05 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-11-15 21:56:09 +0100 |
| commit | 1654b817d8f5f1c27ebc98773fe0e517b0ba2f1e (patch) | |
| tree | b12139b37c3d712973baabfd5f8142728e36ef2a /drivers/gpu/drm/radeon/cik_sdma.c | |
| parent | drm/radeon: add semaphore trace point (diff) | |
| download | linux-1654b817d8f5f1c27ebc98773fe0e517b0ba2f1e.tar.xz linux-1654b817d8f5f1c27ebc98773fe0e517b0ba2f1e.zip | |
drm/radeon: allow semaphore emission to fail
To workaround bugs and/or certain limits it's sometimes
useful to fall back to waiting on fences.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/cik_sdma.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/cik_sdma.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c index 9c9529de20ee..0300727a4f70 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -130,7 +130,7 @@ void cik_sdma_fence_ring_emit(struct radeon_device *rdev, * Add a DMA semaphore packet to the ring wait on or signal * other rings (CIK). */ -void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, +bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -141,6 +141,8 @@ void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits)); radeon_ring_write(ring, addr & 0xfffffff8); radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff); + + return true; } /** @@ -443,13 +445,8 @@ int cik_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; |