gpu/drm/drm_exec.c

23  *	struct drm_gem_object *obj;
41  *	drm_exec_for_each_locked_object(&exec, index, obj) {
42  *		dma_resv_add_fence(obj->resv, fence, DMA_RESV_USAGE_READ);
56 	struct drm_gem_object *obj;
59 	drm_exec_for_each_locked_object_reverse(exec, index, obj) {
60 		dma_resv_unlock(obj->resv);
61 		drm_gem_object_put(obj);
142 			       struct drm_gem_object *obj)
156 	drm_gem_object_get(obj);
157 	exec->objects[exec->num_objects++] = obj;
165 	struct drm_gem_object *obj = exec->contended;
168 	if (likely(!obj))
174 		ret = dma_resv_lock_slow_interruptible(obj->resv,
179 		dma_resv_lock_slow(obj->resv, &exec->ticket);
182 	ret = drm_exec_obj_locked(exec, obj);
186 	exec->prelocked = obj;
190 	dma_resv_unlock(obj->resv);
193 	drm_gem_object_put(obj);
200  * @obj: the GEM object to lock
208 int drm_exec_lock_obj(struct drm_exec *exec, struct drm_gem_object *obj)
216 	if (exec->prelocked == obj) {
223 		ret = dma_resv_lock_interruptible(obj->resv, &exec->ticket);
225 		ret = dma_resv_lock(obj->resv, &exec->ticket);
228 		drm_gem_object_get(obj);
229 		exec->contended = obj;
240 	ret = drm_exec_obj_locked(exec, obj);
247 	dma_resv_unlock(obj->resv);
255  * @obj: the GEM object to unlock
261 void drm_exec_unlock_obj(struct drm_exec *exec, struct drm_gem_object *obj)
266 		if (exec->objects[i] == obj) {
267 			dma_resv_unlock(obj->resv);
271 			drm_gem_object_put(obj);
282  * @obj: the GEM object to prepare
290 int drm_exec_prepare_obj(struct drm_exec *exec, struct drm_gem_object *obj,
295 	ret = drm_exec_lock_obj(exec, obj);
299 	ret = dma_resv_reserve_fences(obj->resv, num_fences);
301 		drm_exec_unlock_obj(exec, obj);