*/
static int ttm_bo_add_move_fence(struct ttm_buffer_object *bo,
struct ttm_mem_type_manager *man,
- struct ttm_mem_reg *mem)
+ struct ttm_mem_reg *mem,
+ bool no_wait_gpu)
{
struct dma_fence *fence;
int ret;
fence = dma_fence_get(man->move);
spin_unlock(&man->move_lock);
- if (fence) {
- dma_resv_add_shared_fence(bo->base.resv, fence);
+ if (!fence)
+ return 0;
- ret = dma_resv_reserve_shared(bo->base.resv, 1);
- if (unlikely(ret)) {
- dma_fence_put(fence);
- return ret;
- }
+ if (no_wait_gpu)
+ return -EBUSY;
+
+ dma_resv_add_shared_fence(bo->base.resv, fence);
- dma_fence_put(bo->moving);
- bo->moving = fence;
+ ret = dma_resv_reserve_shared(bo->base.resv, 1);
+ if (unlikely(ret)) {
+ dma_fence_put(fence);
+ return ret;
}
+ dma_fence_put(bo->moving);
+ bo->moving = fence;
return 0;
}
return ret;
} while (1);
- return ttm_bo_add_move_fence(bo, man, mem);
+ return ttm_bo_add_move_fence(bo, man, mem, ctx->no_wait_gpu);
}
static uint32_t ttm_bo_select_caching(struct ttm_mem_type_manager *man,
if (unlikely(ret))
goto error;
- if (mem->mm_node) {
- ret = ttm_bo_add_move_fence(bo, man, mem);
- if (unlikely(ret)) {
- (*man->func->put_node)(man, mem);
- goto error;
- }
- return 0;
+ if (!mem->mm_node)
+ continue;
+
+ ret = ttm_bo_add_move_fence(bo, man, mem, ctx->no_wait_gpu);
+ if (unlikely(ret)) {
+ (*man->func->put_node)(man, mem);
+ if (ret == -EBUSY)
+ continue;
+
+ goto error;
}
+ return 0;
}
for (i = 0; i < placement->num_busy_placement; ++i) {