bool old_use_tt, new_use_tt;
int ret;
- old_use_tt = bo->resource &&
- ttm_manager_type(bdev, bo->resource->mem_type)->use_tt;
+ old_use_tt = !bo->resource || ttm_manager_type(bdev, bo->resource->mem_type)->use_tt;
new_use_tt = ttm_manager_type(bdev, mem->mem_type)->use_tt;
ttm_bo_unmap_virtual(bo);
if (ret == -EMULTIHOP) {
ret = ttm_bo_bounce_temp_buffer(bo, &evict_mem, ctx, &hop);
if (ret) {
- pr_err("Buffer eviction failed\n");
+ if (ret != -ERESTARTSYS && ret != -EINTR)
+ pr_err("Buffer eviction failed\n");
ttm_resource_free(bo, &evict_mem);
goto out;
}
if (!placement->num_placement && !placement->num_busy_placement)
return ttm_bo_pipeline_gutting(bo);
- /*
- * Check whether we need to move buffer.
- */
- if (!bo->resource || !ttm_resource_compat(bo->resource, placement)) {
- ret = ttm_bo_move_buffer(bo, placement, ctx);
- if (ret)
- return ret;
- }
+ /* Check whether we need to move buffer. */
+ if (bo->resource && ttm_resource_compat(bo->resource, placement))
+ return 0;
+
+ /* Moving of pinned BOs is forbidden */
+ if (bo->pin_count)
+ return -EINVAL;
+
+ ret = ttm_bo_move_buffer(bo, placement, ctx);
+ if (ret)
+ return ret;
+
/*
* We might need to add a TTM.
*/
struct sg_table *sg, struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *))
{
- static const struct ttm_place sys_mem = { .mem_type = TTM_PL_SYSTEM };
int ret;
kref_init(&bo->kref);
bo->base.resv = &bo->base._resv;
atomic_inc(&ttm_glob.bo_count);
- ret = ttm_resource_alloc(bo, &sys_mem, &bo->resource);
- if (unlikely(ret)) {
- ttm_bo_put(bo);
- return ret;
- }
-
/*
* For ttm_bo_type_device buffers, allocate
* address space from the device.