1 // SPDX-License-Identifier: GPL-2.0
26 	rq->sched.attr.priority = I915_PRIORITY_BARRIER;  in request_sync()
35 	lockdep_unpin_lock(&tl->mutex, rq->cookie);  in request_sync()
36 	mutex_unlock(&tl->mutex);  in request_sync()
46 	struct intel_timeline *tl = ce->timeline;  in context_sync()
49 	mutex_lock(&tl->mutex);  in context_sync()
54 		if (list_empty(&tl->requests))  in context_sync()
57 		rq = list_last_entry(&tl->requests, typeof(*rq), link);  in context_sync()
68 	mutex_unlock(&tl->mutex);  in context_sync()
71 	i915_active_unlock_wait(&ce->active);  in context_sync()
90 	vaddr = i915_gem_object_pin_map_unlocked(ce->state->obj,  in __live_context_size()
91 						 intel_gt_coherent_map_type(engine->gt,  in __live_context_size()
92 									    ce->state->obj,  in __live_context_size()
108 	 * to be written into the context state.  in __live_context_size()
112 	vaddr += engine->context_size - I915_GTT_PAGE_SIZE;  in __live_context_size()
137 		pr_err("%s context overwrote trailing red-zone!", engine->name);  in __live_context_size()
138 		err = -EINVAL;  in __live_context_size()
142 	i915_gem_object_unpin_map(ce->state->obj);  in __live_context_size()
163 		if (!engine->context_size)  in live_context_size()
169 		 * Hide the old default state -- we lie about the context size  in live_context_size()
170 		 * and get confused when the default state is smaller than  in live_context_size()
172 		 * active state is sufficient, we are only checking that we  in live_context_size()
175 		saved = fetch_and_zero(&engine->default_state);  in live_context_size()
178 		engine->context_size += I915_GTT_PAGE_SIZE;  in live_context_size()
182 		engine->context_size -= I915_GTT_PAGE_SIZE;  in live_context_size()
184 		engine->default_state = saved;  in live_context_size()
204 	 * switch as the final write from the context-save will be after  in __live_active_context()
208 	 * to unpin the context from the next idle-barrier.  in __live_active_context()
211 	 * subsequent idle-barrier (emitted when the engine wakeref hits 0  in __live_active_context()
214 	 * In GuC submission mode we don't use idle barriers and we instead  in __live_active_context()
223 		       engine->name, __func__);  in __live_active_context()
224 		return -EINVAL;  in __live_active_context()
231 	saved_heartbeat = engine->props.heartbeat_interval_ms;  in __live_active_context()
232 	engine->props.heartbeat_interval_ms = 0;  in __live_active_context()
249 		/* Context will be kept active until after an idle-barrier. */  in __live_active_context()
250 		if (i915_active_is_idle(&ce->active)) {  in __live_active_context()
251 			pr_err("context is not active; expected idle-barrier (%s pass %d)\n",  in __live_active_context()
252 			       engine->name, pass);  in __live_active_context()
253 			err = -EINVAL;  in __live_active_context()
258 			pr_err("%s is asleep before idle-barrier\n",  in __live_active_context()
259 			       engine->name);  in __live_active_context()
260 			err = -EINVAL;  in __live_active_context()
270 	/* Now make sure our idle-barriers are flushed */  in __live_active_context()
276 	err = context_sync(engine->kernel_context);  in __live_active_context()
280 	if (!i915_active_is_idle(&ce->active)) {  in __live_active_context()
282 		err = -EINVAL;  in __live_active_context()
288 		struct drm_printer p = drm_dbg_printer(&engine->i915->drm,  in __live_active_context()
292 				  "%s is still awake:%d after idle-barriers\n",  in __live_active_context()
293 				  engine->name,  in __live_active_context()
294 				  atomic_read(&engine->wakeref.count));  in __live_active_context()
297 		err = -EINVAL;  in __live_active_context()
302 	engine->props.heartbeat_interval_ms = saved_heartbeat;  in __live_active_context()
319 		err = igt_flush_test(gt->i915);  in live_active_context()
363 	 * Check that our idle barriers do not interfere with normal  in __live_remote_context()
367 	 * clobber the idle-barrier.  in __live_remote_context()
369 	 * In GuC submission mode we don't use idle barriers.  in __live_remote_context()
376 		       engine->name, __func__);  in __live_remote_context()
377 		return -EINVAL;  in __live_remote_context()
390 	saved_heartbeat = engine->props.heartbeat_interval_ms;  in __live_remote_context()
391 	engine->props.heartbeat_interval_ms = 0;  in __live_remote_context()
399 		err = __remote_sync(engine->kernel_context, remote);  in __live_remote_context()
403 		if (i915_active_is_idle(&remote->active)) {  in __live_remote_context()
404 			pr_err("remote context is not active; expected idle-barrier (%s pass %d)\n",  in __live_remote_context()
405 			       engine->name, pass);  in __live_remote_context()
406 			err = -EINVAL;  in __live_remote_context()
412 	engine->props.heartbeat_interval_ms = saved_heartbeat;  in __live_remote_context()
432 		err = igt_flush_test(gt->i915);  in live_remote_context()