gpu/drm/drm_exec.c

11  * multiple GEM objects while preparing hardware operations (e.g. command
14  * If a contention is detected while locking a GEM object the cleanup procedure
15  * unlocks all previously locked GEM objects and locks the contended one first
19  * dma_resv object inside the GEM object.
197  * drm_exec_lock_obj - lock a GEM object for use
199  * @obj: the GEM object to lock
201  * Lock a GEM object for use and grab a reference to it.
252  * drm_exec_unlock_obj - unlock a GEM object in this exec context
254  * @obj: the GEM object to unlock
256  * Unlock the GEM object and remove it from the collection of locked objects.
279  * drm_exec_prepare_obj - prepare a GEM object for use
281  * @obj: the GEM object to prepare
284  * Prepare a GEM object for use by locking it and reserving fence slots.
311  * @objects: array of GEM object to prepare
312  * @num_objects: number of GEM objects in the array
313  * @num_fences: number of fences to reserve on each GEM object
315  * Prepares all GEM objects in an array, aborts on first error.
316  * Reserves @num_fences on each GEM object after locking it.