diff options
Diffstat (limited to 'include/drm/ttm/ttm_bo_driver.h')
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 44dea22d594e..e2ebe6666e2b 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -258,8 +258,10 @@ struct ttm_mem_type_manager_func { * reserved by the TTM vm system. * @io_reserve_lru: Optional lru list for unreserving io mem regions. * @io_reserve_fastpath: Only use bdev::driver::io_mem_reserve to obtain + * @move_lock: lock for move fence * static information. bdev::driver::io_mem_free is never used. * @lru: The lru list for this memory type. + * @move: The fence of the last pipelined move operation. * * This structure is used to identify and manage memory types for a device. * It's set up by the ttm_bo_driver::init_mem_type method. @@ -286,6 +288,7 @@ struct ttm_mem_type_manager { struct mutex io_reserve_mutex; bool use_io_reserve_lru; bool io_reserve_fastpath; + spinlock_t move_lock; /* * Protected by @io_reserve_mutex: @@ -298,6 +301,11 @@ struct ttm_mem_type_manager { */ struct list_head lru; + + /* + * Protected by @move_lock. + */ + struct fence *move; }; /** @@ -1014,6 +1022,22 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo); extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo, struct fence *fence, bool evict, struct ttm_mem_reg *new_mem); + +/** + * ttm_bo_pipeline_move. + * + * @bo: A pointer to a struct ttm_buffer_object. + * @fence: A fence object that signals when moving is complete. + * @evict: This is an evict move. Don't return until the buffer is idle. + * @new_mem: struct ttm_mem_reg indicating where to move. + * + * Function for pipelining accelerated moves. Either free the memory + * immediately or hang it on a temporary buffer object. + */ +int ttm_bo_pipeline_move(struct ttm_buffer_object *bo, + struct fence *fence, bool evict, + struct ttm_mem_reg *new_mem); + /** * ttm_io_prot * |