i915/gt/intel_execlists_submission.c

318 	 *      prio >= max(0, last);
835 		 * Sentinels are supposed to be the last request so they flush
1282 	struct i915_request *last, * const *active;
1293 	 * where it got up to last time, and through RING_TAIL we tell the CS
1312 	 * If the queue is higher priority than the last
1321 	while ((last = *active) && completed(last))
1324 	if (last) {
1325 		if (need_preempt(engine, last)) {
1327 				     "preempting last=%llx:%lld, prio=%d, hint=%d\n",
1328 				     last->fence.context,
1329 				     last->fence.seqno,
1330 				     last->sched.attr.priority,
1350 			last = NULL;
1351 		} else if (timeslice_expired(engine, last)) {
1353 				     "expired:%s last=%llx:%lld, prio=%d, hint=%d, yield?=%s\n",
1355 				     last->fence.context, last->fence.seqno,
1356 				     rq_prio(last),
1358 				     str_yes_no(timeslice_yield(execlists, last)));
1393 			last = NULL;
1433 		if (last && !can_merge_rq(last, rq)) {
1476 			last = rq;
1512 			if (last && !can_merge_rq(last, rq)) {
1515 				 * combine this request with the last, then we
1526 				if (last->context == rq->context)
1529 				if (i915_request_has_sentinel(last))
1548 				if (ctx_single_port_submission(last->context) ||
1557 					*port++ = i915_request_get(last);
1558 					last = NULL;
1561 				GEM_BUG_ON(last &&
1562 					   !can_merge_ctx(last->context,
1564 				GEM_BUG_ON(last &&
1565 					   i915_seqno_passed(last->fence.seqno,
1569 				last = rq;
1577 	*port++ = i915_request_get(last);
1588 	 * the priority of the lowest executing request, i.e. last.
1763 	 * we prefer the path that is self-checking and as a last resort,
1880 	/* Remember who was last running under the timer */
2053 			     struct i915_request **last)
2055 	while (port != last)
2832 	 * fake the HW write to point back to the last entry so that our
2833 	 * inline comparison of our cached head position against the last HW
4098 	struct i915_request *rq, *last;
4105 	last = NULL;
4111 			last = rq;
4113 	if (last) {
4119 		show_request(m, last, "\t\t", 0);
4126 	last = NULL;
4135 				last = rq;
4138 	if (last) {
4144 		show_request(m, last, "\t\t", 0);
4147 	last = NULL;
4158 				last = rq;
4161 	if (last) {
4167 		show_request(m, last, "\t\t", 0);