17 static bool retire_requests(struct intel_timeline *tl)  in retire_requests()  argument
21 	list_for_each_entry_safe(rq, rn, &tl->requests, link)  in retire_requests()
26 	return !i915_active_fence_isset(&tl->last_request);  in retire_requests()
64 	struct intel_timeline *tl = xchg(&engine->retire, NULL);  in engine_retire()  local
67 		struct intel_timeline *next = xchg(&tl->retire, NULL);  in engine_retire()
77 		if (mutex_trylock(&tl->mutex)) {  in engine_retire()
78 			retire_requests(tl);  in engine_retire()
79 			mutex_unlock(&tl->mutex);  in engine_retire()
81 		intel_timeline_put(tl);  in engine_retire()
84 		tl = ptr_mask_bits(next, 1);  in engine_retire()
85 	} while (tl);  in engine_retire()
89 		       struct intel_timeline *tl)  in add_retire()  argument
100 	if (cmpxchg(&tl->retire, NULL, STUB)) /* already queued */  in add_retire()
103 	intel_timeline_get(tl);  in add_retire()
106 		tl->retire = ptr_pack_bits(first, 1, 1);  in add_retire()
107 	while (!try_cmpxchg(&engine->retire, &first, tl));  in add_retire()
113 			     struct intel_timeline *tl)  in intel_engine_add_retire()  argument
118 	if (add_retire(engine, tl))  in intel_engine_add_retire()
137 	struct intel_timeline *tl, *tn;  in intel_gt_retire_requests_timeout()  local
143 	list_for_each_entry_safe(tl, tn, &timelines->active_list, link) {  in intel_gt_retire_requests_timeout()
144 		if (!mutex_trylock(&tl->mutex)) {  in intel_gt_retire_requests_timeout()
149 		intel_timeline_get(tl);  in intel_gt_retire_requests_timeout()
150 		GEM_BUG_ON(!atomic_read(&tl->active_count));  in intel_gt_retire_requests_timeout()
151 		atomic_inc(&tl->active_count); /* pin the list element */  in intel_gt_retire_requests_timeout()
157 			fence = i915_active_fence_get(&tl->last_request);  in intel_gt_retire_requests_timeout()
159 				mutex_unlock(&tl->mutex);  in intel_gt_retire_requests_timeout()
167 				if (!mutex_trylock(&tl->mutex)) {  in intel_gt_retire_requests_timeout()
174 		if (!retire_requests(tl))  in intel_gt_retire_requests_timeout()
176 		mutex_unlock(&tl->mutex);  in intel_gt_retire_requests_timeout()
181 		list_safe_reset_next(tl, tn, link);  in intel_gt_retire_requests_timeout()
182 		if (atomic_dec_and_test(&tl->active_count))  in intel_gt_retire_requests_timeout()
183 			list_del(&tl->link);  in intel_gt_retire_requests_timeout()
186 		if (refcount_dec_and_test(&tl->kref.refcount)) {  in intel_gt_retire_requests_timeout()
187 			GEM_BUG_ON(atomic_read(&tl->active_count));  in intel_gt_retire_requests_timeout()
188 			list_add(&tl->link, &free);  in intel_gt_retire_requests_timeout()
193 	list_for_each_entry_safe(tl, tn, &free, link)  in intel_gt_retire_requests_timeout()
194 		__intel_timeline_free(&tl->kref);  in intel_gt_retire_requests_timeout()