diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index c286c6ffe07f..bd5dae4d1624 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -84,6 +84,7 @@ EXPORT_SYMBOL(ttm_bo_move_to_lru_tail); * ttm_bo_set_bulk_move - update BOs bulk move object * * @bo: The buffer object. + * @bulk: bulk move structure * * Update the BOs bulk move object, making sure that resources are added/removed * as well. A bulk move allows to move many resource on the LRU at once, @@ -120,8 +121,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo, 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); @@ -463,7 +463,8 @@ bounce: 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; } @@ -746,7 +747,7 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo, * * @bo: Pointer to a struct ttm_buffer_object. the data of which * we want to allocate space for. - * @proposed_placement: Proposed new placement for the buffer object. + * @placement: Proposed new placement for the buffer object. * @mem: A struct ttm_resource. * @ctx: if and how to sleep, lock buffers and alloc memory * @@ -892,14 +893,18 @@ int ttm_bo_validate(struct ttm_buffer_object *bo, 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. */ @@ -951,7 +956,6 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo, 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); @@ -968,12 +972,6 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo, 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. |