diff options
| author |   Felix Kuehling <Felix.Kuehling@amd.com> | 2019-07-09 19:09:42 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-08-02 10:18:04 -0500 |
| commit | 274840e544225657fbca4f12efa1ee55474bb800 (patch) | |
| tree | a1a64a945e2c45aa2890f2dd63bf4843eb661ed4 | |
| parent | drm/amd/display: Use switch table for dc_to_smu_clock_type (diff) | |
| download | linux-dev-274840e544225657fbca4f12efa1ee55474bb800.tar.xz linux-dev-274840e544225657fbca4f12efa1ee55474bb800.zip | |
drm/ttm: Add release_notify callback to ttm_bo_driver
This notifies the driver that a BO is about to be released.
Releasing a BO also invokes the move_notify callback from
ttm_bo_cleanup_memtype_use, but that happens too late for anything
that would add fences to the BO and require a delayed delete.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 3 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index a7fd5a4955c9..939b9258d513 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -671,6 +671,9 @@ static void ttm_bo_release(struct kref *kref) struct ttm_bo_device *bdev = bo->bdev; struct ttm_mem_type_manager *man = &bdev->man[bo->mem.mem_type]; + if (bo->bdev->driver->release_notify) + bo->bdev->driver->release_notify(bo); + drm_vma_offset_remove(&bdev->vma_manager, &bo->vma_node); ttm_mem_io_lock(man, false); ttm_mem_io_free_vm(bo); diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index a2d810a2504d..81077e5b4b7e 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -390,6 +390,16 @@ struct ttm_bo_driver { * notify driver that a BO was deleted from LRU. */ void (*del_from_lru_notify)(struct ttm_buffer_object *bo); + + /** + * Notify the driver that we're about to release a BO + * + * @bo: BO that is about to be released + * + * Gives the driver a chance to do any cleanup, including + * adding fences that may force a delayed delete + */ + void (*release_notify)(struct ttm_buffer_object *bo); }; /** |