drm/radeon: add the infrastructure for concurrent buffer access
This allows us to specify if we want to sync to
the shared fences of a reservation object or not.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index 51fd985..fc54224 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -436,18 +436,19 @@
* @src_offset: src GPU address
* @dst_offset: dst GPU address
* @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
+ * @resv: reservation object to sync to
*
* Copy GPU paging using the DMA engine (r6xx).
* Used by the radeon ttm implementation to move pages if
* registered as the asic copy callback.
*/
-int r600_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
+struct radeon_fence *r600_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct reservation_object *resv)
{
struct radeon_semaphore *sem = NULL;
+ struct radeon_fence *fence;
int ring_index = rdev->asic->copy.dma_ring_index;
struct radeon_ring *ring = &rdev->ring[ring_index];
u32 size_in_dw, cur_size_in_dw;
@@ -457,7 +458,7 @@
r = radeon_semaphore_create(rdev, &sem);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
+ return ERR_PTR(r);
}
size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
@@ -466,10 +467,10 @@
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
radeon_semaphore_free(rdev, &sem, NULL);
- return r;
+ return ERR_PTR(r);
}
- radeon_semaphore_sync_to(sem, *fence);
+ radeon_semaphore_sync_resv(sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
@@ -486,15 +487,15 @@
dst_offset += cur_size_in_dw * 4;
}
- r = radeon_fence_emit(rdev, fence, ring->idx);
+ r = radeon_fence_emit(rdev, &fence, ring->idx);
if (r) {
radeon_ring_unlock_undo(rdev, ring);
radeon_semaphore_free(rdev, &sem, NULL);
- return r;
+ return ERR_PTR(r);
}
radeon_ring_unlock_commit(rdev, ring, false);
- radeon_semaphore_free(rdev, &sem, *fence);
+ radeon_semaphore_free(rdev, &sem, fence);
- return r;
+ return fence;
}