27 	struct intel_context *ce = container_of(rcu, typeof(*ce), rcu);  in rcu_context_free()  local
29 	trace_intel_context_free(ce);  in rcu_context_free()
30 	if (intel_context_has_own_state(ce))  in rcu_context_free()
31 		fput(ce->default_state);  in rcu_context_free()
32 	kmem_cache_free(slab_ce, ce);  in rcu_context_free()
35 void intel_context_free(struct intel_context *ce)  in intel_context_free()  argument
37 	call_rcu(&ce->rcu, rcu_context_free);  in intel_context_free()
43 	struct intel_context *ce;  in intel_context_create()  local
45 	ce = intel_context_alloc();  in intel_context_create()
46 	if (!ce)  in intel_context_create()
49 	intel_context_init(ce, engine);  in intel_context_create()
50 	trace_intel_context_create(ce);  in intel_context_create()
51 	return ce;  in intel_context_create()
54 int intel_context_alloc_state(struct intel_context *ce)  in intel_context_alloc_state()  argument
59 	if (mutex_lock_interruptible(&ce->pin_mutex))  in intel_context_alloc_state()
62 	if (!test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) {  in intel_context_alloc_state()
63 		if (intel_context_is_banned(ce)) {  in intel_context_alloc_state()
68 		err = ce->ops->alloc(ce);  in intel_context_alloc_state()
72 		set_bit(CONTEXT_ALLOC_BIT, &ce->flags);  in intel_context_alloc_state()
75 		ctx = rcu_dereference(ce->gem_context);  in intel_context_alloc_state()
82 								    ce);  in intel_context_alloc_state()
88 	mutex_unlock(&ce->pin_mutex);  in intel_context_alloc_state()
92 static int intel_context_active_acquire(struct intel_context *ce)  in intel_context_active_acquire()  argument
96 	__i915_active_acquire(&ce->active);  in intel_context_active_acquire()
98 	if (intel_context_is_barrier(ce) || intel_engine_uses_guc(ce->engine) ||  in intel_context_active_acquire()
99 	    intel_context_is_parallel(ce))  in intel_context_active_acquire()
103 	err = i915_active_acquire_preallocate_barrier(&ce->active,  in intel_context_active_acquire()
104 						      ce->engine);  in intel_context_active_acquire()
106 		i915_active_release(&ce->active);  in intel_context_active_acquire()
111 static void intel_context_active_release(struct intel_context *ce)  in intel_context_active_release()  argument
114 	i915_active_acquire_barrier(&ce->active);  in intel_context_active_release()
115 	i915_active_release(&ce->active);  in intel_context_active_release()
178 static int intel_context_pre_pin(struct intel_context *ce,  in intel_context_pre_pin()  argument
183 	CE_TRACE(ce, "active\n");  in intel_context_pre_pin()
185 	err = __ring_active(ce->ring, ww);  in intel_context_pre_pin()
189 	err = intel_timeline_pin(ce->timeline, ww);  in intel_context_pre_pin()
193 	if (!ce->state)  in intel_context_pre_pin()
196 	err = __context_pin_state(ce->state, ww);  in intel_context_pre_pin()
204 	intel_timeline_unpin(ce->timeline);  in intel_context_pre_pin()
206 	__ring_retire(ce->ring);  in intel_context_pre_pin()
210 static void intel_context_post_unpin(struct intel_context *ce)  in intel_context_post_unpin()  argument
212 	if (ce->state)  in intel_context_post_unpin()
213 		__context_unpin_state(ce->state);  in intel_context_post_unpin()
215 	intel_timeline_unpin(ce->timeline);  in intel_context_post_unpin()
216 	__ring_retire(ce->ring);  in intel_context_post_unpin()
219 int __intel_context_do_pin_ww(struct intel_context *ce,  in __intel_context_do_pin_ww()  argument
226 	if (unlikely(!test_bit(CONTEXT_ALLOC_BIT, &ce->flags))) {  in __intel_context_do_pin_ww()
227 		err = intel_context_alloc_state(ce);  in __intel_context_do_pin_ww()
238 	err = i915_gem_object_lock(ce->timeline->hwsp_ggtt->obj, ww);  in __intel_context_do_pin_ww()
240 		err = i915_gem_object_lock(ce->ring->vma->obj, ww);  in __intel_context_do_pin_ww()
241 	if (!err && ce->state)  in __intel_context_do_pin_ww()
242 		err = i915_gem_object_lock(ce->state->obj, ww);  in __intel_context_do_pin_ww()
244 		err = intel_context_pre_pin(ce, ww);  in __intel_context_do_pin_ww()
248 	err = ce->ops->pre_pin(ce, ww, &vaddr);  in __intel_context_do_pin_ww()
252 	err = i915_active_acquire(&ce->active);  in __intel_context_do_pin_ww()
256 	err = mutex_lock_interruptible(&ce->pin_mutex);  in __intel_context_do_pin_ww()
260 	intel_engine_pm_might_get(ce->engine);  in __intel_context_do_pin_ww()
262 	if (unlikely(intel_context_is_closed(ce))) {  in __intel_context_do_pin_ww()
267 	if (likely(!atomic_add_unless(&ce->pin_count, 1, 0))) {  in __intel_context_do_pin_ww()
268 		err = intel_context_active_acquire(ce);  in __intel_context_do_pin_ww()
272 		err = ce->ops->pin(ce, vaddr);  in __intel_context_do_pin_ww()
274 			intel_context_active_release(ce);  in __intel_context_do_pin_ww()
278 		CE_TRACE(ce, "pin ring:{start:%08x, head:%04x, tail:%04x}\n",  in __intel_context_do_pin_ww()
279 			 i915_ggtt_offset(ce->ring->vma),  in __intel_context_do_pin_ww()
280 			 ce->ring->head, ce->ring->tail);  in __intel_context_do_pin_ww()
284 		atomic_inc(&ce->pin_count);  in __intel_context_do_pin_ww()
287 	GEM_BUG_ON(!intel_context_is_pinned(ce)); /* no overflow! */  in __intel_context_do_pin_ww()
289 	trace_intel_context_do_pin(ce);  in __intel_context_do_pin_ww()
292 	mutex_unlock(&ce->pin_mutex);  in __intel_context_do_pin_ww()
294 	i915_active_release(&ce->active);  in __intel_context_do_pin_ww()
297 		ce->ops->post_unpin(ce);  in __intel_context_do_pin_ww()
299 	intel_context_post_unpin(ce);  in __intel_context_do_pin_ww()
307 	i915_gem_ww_unlock_single(ce->timeline->hwsp_ggtt->obj);  in __intel_context_do_pin_ww()
312 int __intel_context_do_pin(struct intel_context *ce)  in __intel_context_do_pin()  argument
319 	err = __intel_context_do_pin_ww(ce, &ww);  in __intel_context_do_pin()
329 void __intel_context_do_unpin(struct intel_context *ce, int sub)  in __intel_context_do_unpin()  argument
331 	if (!atomic_sub_and_test(sub, &ce->pin_count))  in __intel_context_do_unpin()
334 	CE_TRACE(ce, "unpin\n");  in __intel_context_do_unpin()
335 	ce->ops->unpin(ce);  in __intel_context_do_unpin()
336 	ce->ops->post_unpin(ce);  in __intel_context_do_unpin()
344 	intel_context_get(ce);  in __intel_context_do_unpin()
345 	intel_context_active_release(ce);  in __intel_context_do_unpin()
346 	trace_intel_context_do_unpin(ce);  in __intel_context_do_unpin()
347 	intel_context_put(ce);  in __intel_context_do_unpin()
352 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_retire()  local
354 	CE_TRACE(ce, "retire runtime: { total:%lluns, avg:%lluns }\n",  in __intel_context_retire()
355 		 intel_context_get_total_runtime_ns(ce),  in __intel_context_retire()
356 		 intel_context_get_avg_runtime_ns(ce));  in __intel_context_retire()
358 	set_bit(CONTEXT_VALID_BIT, &ce->flags);  in __intel_context_retire()
359 	intel_context_post_unpin(ce);  in __intel_context_retire()
360 	intel_context_put(ce);  in __intel_context_retire()
365 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_active()  local
367 	intel_context_get(ce);  in __intel_context_active()
370 	GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->ring->vma->active));  in __intel_context_active()
371 	__intel_ring_pin(ce->ring);  in __intel_context_active()
373 	__intel_timeline_pin(ce->timeline);  in __intel_context_active()
375 	if (ce->state) {  in __intel_context_active()
376 		GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->state->active));  in __intel_context_active()
377 		__i915_vma_pin(ce->state);  in __intel_context_active()
378 		i915_vma_make_unshrinkable(ce->state);  in __intel_context_active()
392 intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)  in intel_context_init()  argument
397 	kref_init(&ce->ref);  in intel_context_init()
399 	ce->engine = engine;  in intel_context_init()
400 	ce->ops = engine->cops;  in intel_context_init()
401 	ce->sseu = engine->sseu;  in intel_context_init()
402 	ce->ring = NULL;  in intel_context_init()
403 	ce->ring_size = SZ_4K;  in intel_context_init()
405 	ewma_runtime_init(&ce->stats.runtime.avg);  in intel_context_init()
407 	ce->vm = i915_vm_get(engine->gt->vm);  in intel_context_init()
410 	spin_lock_init(&ce->signal_lock);  in intel_context_init()
411 	INIT_LIST_HEAD(&ce->signals);  in intel_context_init()
413 	mutex_init(&ce->pin_mutex);  in intel_context_init()
415 	spin_lock_init(&ce->guc_state.lock);  in intel_context_init()
416 	INIT_LIST_HEAD(&ce->guc_state.fences);  in intel_context_init()
417 	INIT_LIST_HEAD(&ce->guc_state.requests);  in intel_context_init()
419 	ce->guc_id.id = GUC_INVALID_CONTEXT_ID;  in intel_context_init()
420 	INIT_LIST_HEAD(&ce->guc_id.link);  in intel_context_init()
422 	INIT_LIST_HEAD(&ce->destroyed_link);  in intel_context_init()
424 	INIT_LIST_HEAD(&ce->parallel.child_list);  in intel_context_init()
430 	i915_sw_fence_init(&ce->guc_state.blocked,  in intel_context_init()
432 	i915_sw_fence_commit(&ce->guc_state.blocked);  in intel_context_init()
434 	i915_active_init(&ce->active,  in intel_context_init()
438 void intel_context_fini(struct intel_context *ce)  in intel_context_fini()  argument
442 	if (ce->timeline)  in intel_context_fini()
443 		intel_timeline_put(ce->timeline);  in intel_context_fini()
444 	i915_vm_put(ce->vm);  in intel_context_fini()
447 	if (intel_context_is_parent(ce))  in intel_context_fini()
448 		for_each_child_safe(ce, child, next)  in intel_context_fini()
451 	mutex_destroy(&ce->pin_mutex);  in intel_context_fini()
452 	i915_active_fini(&ce->active);  in intel_context_fini()
453 	i915_sw_fence_fini(&ce->guc_state.blocked);  in intel_context_fini()
470 void intel_context_enter_engine(struct intel_context *ce)  in intel_context_enter_engine()  argument
472 	intel_engine_pm_get(ce->engine);  in intel_context_enter_engine()
473 	intel_timeline_enter(ce->timeline);  in intel_context_enter_engine()
476 void intel_context_exit_engine(struct intel_context *ce)  in intel_context_exit_engine()  argument
478 	intel_timeline_exit(ce->timeline);  in intel_context_exit_engine()
479 	intel_engine_pm_put(ce->engine);  in intel_context_exit_engine()
482 int intel_context_prepare_remote_request(struct intel_context *ce,  in intel_context_prepare_remote_request()  argument
485 	struct intel_timeline *tl = ce->timeline;  in intel_context_prepare_remote_request()
489 	GEM_BUG_ON(rq->context == ce);  in intel_context_prepare_remote_request()
505 	GEM_BUG_ON(i915_active_is_idle(&ce->active));  in intel_context_prepare_remote_request()
506 	return i915_active_add_request(&ce->active, rq);  in intel_context_prepare_remote_request()
509 struct i915_request *intel_context_create_request(struct intel_context *ce)  in intel_context_create_request()  argument
517 	err = intel_context_pin_ww(ce, &ww);  in intel_context_create_request()
519 		rq = i915_request_create(ce);  in intel_context_create_request()
520 		intel_context_unpin(ce);  in intel_context_create_request()
539 	lockdep_unpin_lock(&ce->timeline->mutex, rq->cookie);  in intel_context_create_request()
540 	mutex_release(&ce->timeline->mutex.dep_map, _RET_IP_);  in intel_context_create_request()
541 	mutex_acquire(&ce->timeline->mutex.dep_map, SINGLE_DEPTH_NESTING, 0, _RET_IP_);  in intel_context_create_request()
542 	rq->cookie = lockdep_pin_lock(&ce->timeline->mutex);  in intel_context_create_request()
547 struct i915_request *intel_context_get_active_request(struct intel_context *ce)  in intel_context_get_active_request()  argument
549 	struct intel_context *parent = intel_context_to_parent(ce);  in intel_context_get_active_request()
553 	GEM_BUG_ON(!intel_engine_uses_guc(ce->engine));  in intel_context_get_active_request()
564 		if (rq->context != ce)  in intel_context_get_active_request()
597 u64 intel_context_get_total_runtime_ns(struct intel_context *ce)  in intel_context_get_total_runtime_ns()  argument
601 	if (ce->ops->update_stats)  in intel_context_get_total_runtime_ns()
602 		ce->ops->update_stats(ce);  in intel_context_get_total_runtime_ns()
604 	total = ce->stats.runtime.total;  in intel_context_get_total_runtime_ns()
605 	if (ce->ops->flags & COPS_RUNTIME_CYCLES)  in intel_context_get_total_runtime_ns()
606 		total *= ce->engine->gt->clock_period_ns;  in intel_context_get_total_runtime_ns()
608 	active = READ_ONCE(ce->stats.active);  in intel_context_get_total_runtime_ns()
615 u64 intel_context_get_avg_runtime_ns(struct intel_context *ce)  in intel_context_get_avg_runtime_ns()  argument
617 	u64 avg = ewma_runtime_read(&ce->stats.runtime.avg);  in intel_context_get_avg_runtime_ns()
619 	if (ce->ops->flags & COPS_RUNTIME_CYCLES)  in intel_context_get_avg_runtime_ns()
620 		avg *= ce->engine->gt->clock_period_ns;  in intel_context_get_avg_runtime_ns()
625 bool intel_context_ban(struct intel_context *ce, struct i915_request *rq)  in intel_context_ban()  argument
627 	bool ret = intel_context_set_banned(ce);  in intel_context_ban()
629 	trace_intel_context_ban(ce);  in intel_context_ban()
631 	if (ce->ops->revoke)  in intel_context_ban()
632 		ce->ops->revoke(ce, rq,  in intel_context_ban()
638 bool intel_context_revoke(struct intel_context *ce)  in intel_context_revoke()  argument
640 	bool ret = intel_context_set_exiting(ce);  in intel_context_revoke()
642 	if (ce->ops->revoke)  in intel_context_revoke()
643 		ce->ops->revoke(ce, NULL, ce->engine->props.preempt_timeout_ms);  in intel_context_revoke()