26 	struct intel_context *ce = container_of(rcu, typeof(*ce), rcu);  in rcu_context_free()  local
28 	trace_intel_context_free(ce);  in rcu_context_free()
29 	kmem_cache_free(slab_ce, ce);  in rcu_context_free()
32 void intel_context_free(struct intel_context *ce)  in intel_context_free()  argument
34 	call_rcu(&ce->rcu, rcu_context_free);  in intel_context_free()
40 	struct intel_context *ce;  in intel_context_create()  local
42 	ce = intel_context_alloc();  in intel_context_create()
43 	if (!ce)  in intel_context_create()
46 	intel_context_init(ce, engine);  in intel_context_create()
47 	trace_intel_context_create(ce);  in intel_context_create()
48 	return ce;  in intel_context_create()
51 int intel_context_alloc_state(struct intel_context *ce)  in intel_context_alloc_state()  argument
55 	if (mutex_lock_interruptible(&ce->pin_mutex))  in intel_context_alloc_state()
58 	if (!test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) {  in intel_context_alloc_state()
59 		if (intel_context_is_banned(ce)) {  in intel_context_alloc_state()
64 		err = ce->ops->alloc(ce);  in intel_context_alloc_state()
68 		set_bit(CONTEXT_ALLOC_BIT, &ce->flags);  in intel_context_alloc_state()
72 	mutex_unlock(&ce->pin_mutex);  in intel_context_alloc_state()
76 static int intel_context_active_acquire(struct intel_context *ce)  in intel_context_active_acquire()  argument
80 	__i915_active_acquire(&ce->active);  in intel_context_active_acquire()
82 	if (intel_context_is_barrier(ce) || intel_engine_uses_guc(ce->engine) ||  in intel_context_active_acquire()
83 	    intel_context_is_parallel(ce))  in intel_context_active_acquire()
87 	err = i915_active_acquire_preallocate_barrier(&ce->active,  in intel_context_active_acquire()
88 						      ce->engine);  in intel_context_active_acquire()
90 		i915_active_release(&ce->active);  in intel_context_active_acquire()
95 static void intel_context_active_release(struct intel_context *ce)  in intel_context_active_release()  argument
98 	i915_active_acquire_barrier(&ce->active);  in intel_context_active_release()
99 	i915_active_release(&ce->active);  in intel_context_active_release()
162 static int intel_context_pre_pin(struct intel_context *ce,  in intel_context_pre_pin()  argument
167 	CE_TRACE(ce, "active\n");  in intel_context_pre_pin()
169 	err = __ring_active(ce->ring, ww);  in intel_context_pre_pin()
173 	err = intel_timeline_pin(ce->timeline, ww);  in intel_context_pre_pin()
177 	if (!ce->state)  in intel_context_pre_pin()
180 	err = __context_pin_state(ce->state, ww);  in intel_context_pre_pin()
188 	intel_timeline_unpin(ce->timeline);  in intel_context_pre_pin()
190 	__ring_retire(ce->ring);  in intel_context_pre_pin()
194 static void intel_context_post_unpin(struct intel_context *ce)  in intel_context_post_unpin()  argument
196 	if (ce->state)  in intel_context_post_unpin()
197 		__context_unpin_state(ce->state);  in intel_context_post_unpin()
199 	intel_timeline_unpin(ce->timeline);  in intel_context_post_unpin()
200 	__ring_retire(ce->ring);  in intel_context_post_unpin()
203 int __intel_context_do_pin_ww(struct intel_context *ce,  in __intel_context_do_pin_ww()  argument
210 	if (unlikely(!test_bit(CONTEXT_ALLOC_BIT, &ce->flags))) {  in __intel_context_do_pin_ww()
211 		err = intel_context_alloc_state(ce);  in __intel_context_do_pin_ww()
222 	err = i915_gem_object_lock(ce->timeline->hwsp_ggtt->obj, ww);  in __intel_context_do_pin_ww()
224 		err = i915_gem_object_lock(ce->ring->vma->obj, ww);  in __intel_context_do_pin_ww()
225 	if (!err && ce->state)  in __intel_context_do_pin_ww()
226 		err = i915_gem_object_lock(ce->state->obj, ww);  in __intel_context_do_pin_ww()
228 		err = intel_context_pre_pin(ce, ww);  in __intel_context_do_pin_ww()
232 	err = ce->ops->pre_pin(ce, ww, &vaddr);  in __intel_context_do_pin_ww()
236 	err = i915_active_acquire(&ce->active);  in __intel_context_do_pin_ww()
240 	err = mutex_lock_interruptible(&ce->pin_mutex);  in __intel_context_do_pin_ww()
244 	intel_engine_pm_might_get(ce->engine);  in __intel_context_do_pin_ww()
246 	if (unlikely(intel_context_is_closed(ce))) {  in __intel_context_do_pin_ww()
251 	if (likely(!atomic_add_unless(&ce->pin_count, 1, 0))) {  in __intel_context_do_pin_ww()
252 		err = intel_context_active_acquire(ce);  in __intel_context_do_pin_ww()
256 		err = ce->ops->pin(ce, vaddr);  in __intel_context_do_pin_ww()
258 			intel_context_active_release(ce);  in __intel_context_do_pin_ww()
262 		CE_TRACE(ce, "pin ring:{start:%08x, head:%04x, tail:%04x}\n",  in __intel_context_do_pin_ww()
263 			 i915_ggtt_offset(ce->ring->vma),  in __intel_context_do_pin_ww()
264 			 ce->ring->head, ce->ring->tail);  in __intel_context_do_pin_ww()
268 		atomic_inc(&ce->pin_count);  in __intel_context_do_pin_ww()
271 	GEM_BUG_ON(!intel_context_is_pinned(ce)); /* no overflow! */  in __intel_context_do_pin_ww()
273 	trace_intel_context_do_pin(ce);  in __intel_context_do_pin_ww()
276 	mutex_unlock(&ce->pin_mutex);  in __intel_context_do_pin_ww()
278 	i915_active_release(&ce->active);  in __intel_context_do_pin_ww()
281 		ce->ops->post_unpin(ce);  in __intel_context_do_pin_ww()
283 	intel_context_post_unpin(ce);  in __intel_context_do_pin_ww()
291 	i915_gem_ww_unlock_single(ce->timeline->hwsp_ggtt->obj);  in __intel_context_do_pin_ww()
296 int __intel_context_do_pin(struct intel_context *ce)  in __intel_context_do_pin()  argument
303 	err = __intel_context_do_pin_ww(ce, &ww);  in __intel_context_do_pin()
313 void __intel_context_do_unpin(struct intel_context *ce, int sub)  in __intel_context_do_unpin()  argument
315 	if (!atomic_sub_and_test(sub, &ce->pin_count))  in __intel_context_do_unpin()
318 	CE_TRACE(ce, "unpin\n");  in __intel_context_do_unpin()
319 	ce->ops->unpin(ce);  in __intel_context_do_unpin()
320 	ce->ops->post_unpin(ce);  in __intel_context_do_unpin()
328 	intel_context_get(ce);  in __intel_context_do_unpin()
329 	intel_context_active_release(ce);  in __intel_context_do_unpin()
330 	trace_intel_context_do_unpin(ce);  in __intel_context_do_unpin()
331 	intel_context_put(ce);  in __intel_context_do_unpin()
336 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_retire()  local
338 	CE_TRACE(ce, "retire runtime: { total:%lluns, avg:%lluns }\n",  in __intel_context_retire()
339 		 intel_context_get_total_runtime_ns(ce),  in __intel_context_retire()
340 		 intel_context_get_avg_runtime_ns(ce));  in __intel_context_retire()
342 	set_bit(CONTEXT_VALID_BIT, &ce->flags);  in __intel_context_retire()
343 	intel_context_post_unpin(ce);  in __intel_context_retire()
344 	intel_context_put(ce);  in __intel_context_retire()
349 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_active()  local
351 	intel_context_get(ce);  in __intel_context_active()
354 	GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->ring->vma->active));  in __intel_context_active()
355 	__intel_ring_pin(ce->ring);  in __intel_context_active()
357 	__intel_timeline_pin(ce->timeline);  in __intel_context_active()
359 	if (ce->state) {  in __intel_context_active()
360 		GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->state->active));  in __intel_context_active()
361 		__i915_vma_pin(ce->state);  in __intel_context_active()
362 		i915_vma_make_unshrinkable(ce->state);  in __intel_context_active()
376 intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)  in intel_context_init()  argument
381 	kref_init(&ce->ref);  in intel_context_init()
383 	ce->engine = engine;  in intel_context_init()
384 	ce->ops = engine->cops;  in intel_context_init()
385 	ce->sseu = engine->sseu;  in intel_context_init()
386 	ce->ring = NULL;  in intel_context_init()
387 	ce->ring_size = SZ_4K;  in intel_context_init()
389 	ewma_runtime_init(&ce->stats.runtime.avg);  in intel_context_init()
391 	ce->vm = i915_vm_get(engine->gt->vm);  in intel_context_init()
394 	spin_lock_init(&ce->signal_lock);  in intel_context_init()
395 	INIT_LIST_HEAD(&ce->signals);  in intel_context_init()
397 	mutex_init(&ce->pin_mutex);  in intel_context_init()
399 	spin_lock_init(&ce->guc_state.lock);  in intel_context_init()
400 	INIT_LIST_HEAD(&ce->guc_state.fences);  in intel_context_init()
401 	INIT_LIST_HEAD(&ce->guc_state.requests);  in intel_context_init()
403 	ce->guc_id.id = GUC_INVALID_CONTEXT_ID;  in intel_context_init()
404 	INIT_LIST_HEAD(&ce->guc_id.link);  in intel_context_init()
406 	INIT_LIST_HEAD(&ce->destroyed_link);  in intel_context_init()
408 	INIT_LIST_HEAD(&ce->parallel.child_list);  in intel_context_init()
414 	i915_sw_fence_init(&ce->guc_state.blocked,  in intel_context_init()
416 	i915_sw_fence_commit(&ce->guc_state.blocked);  in intel_context_init()
418 	i915_active_init(&ce->active,  in intel_context_init()
422 void intel_context_fini(struct intel_context *ce)  in intel_context_fini()  argument
426 	if (ce->timeline)  in intel_context_fini()
427 		intel_timeline_put(ce->timeline);  in intel_context_fini()
428 	i915_vm_put(ce->vm);  in intel_context_fini()
431 	if (intel_context_is_parent(ce))  in intel_context_fini()
432 		for_each_child_safe(ce, child, next)  in intel_context_fini()
435 	mutex_destroy(&ce->pin_mutex);  in intel_context_fini()
436 	i915_active_fini(&ce->active);  in intel_context_fini()
437 	i915_sw_fence_fini(&ce->guc_state.blocked);  in intel_context_fini()
454 void intel_context_enter_engine(struct intel_context *ce)  in intel_context_enter_engine()  argument
456 	intel_engine_pm_get(ce->engine);  in intel_context_enter_engine()
457 	intel_timeline_enter(ce->timeline);  in intel_context_enter_engine()
460 void intel_context_exit_engine(struct intel_context *ce)  in intel_context_exit_engine()  argument
462 	intel_timeline_exit(ce->timeline);  in intel_context_exit_engine()
463 	intel_engine_pm_put(ce->engine);  in intel_context_exit_engine()
466 int intel_context_prepare_remote_request(struct intel_context *ce,  in intel_context_prepare_remote_request()  argument
469 	struct intel_timeline *tl = ce->timeline;  in intel_context_prepare_remote_request()
473 	GEM_BUG_ON(rq->context == ce);  in intel_context_prepare_remote_request()
489 	GEM_BUG_ON(i915_active_is_idle(&ce->active));  in intel_context_prepare_remote_request()
490 	return i915_active_add_request(&ce->active, rq);  in intel_context_prepare_remote_request()
493 struct i915_request *intel_context_create_request(struct intel_context *ce)  in intel_context_create_request()  argument
501 	err = intel_context_pin_ww(ce, &ww);  in intel_context_create_request()
503 		rq = i915_request_create(ce);  in intel_context_create_request()
504 		intel_context_unpin(ce);  in intel_context_create_request()
523 	lockdep_unpin_lock(&ce->timeline->mutex, rq->cookie);  in intel_context_create_request()
524 	mutex_release(&ce->timeline->mutex.dep_map, _RET_IP_);  in intel_context_create_request()
525 	mutex_acquire(&ce->timeline->mutex.dep_map, SINGLE_DEPTH_NESTING, 0, _RET_IP_);  in intel_context_create_request()
526 	rq->cookie = lockdep_pin_lock(&ce->timeline->mutex);  in intel_context_create_request()
531 struct i915_request *intel_context_get_active_request(struct intel_context *ce)  in intel_context_get_active_request()  argument
533 	struct intel_context *parent = intel_context_to_parent(ce);  in intel_context_get_active_request()
537 	GEM_BUG_ON(!intel_engine_uses_guc(ce->engine));  in intel_context_get_active_request()
548 		if (rq->context != ce)  in intel_context_get_active_request()
581 u64 intel_context_get_total_runtime_ns(struct intel_context *ce)  in intel_context_get_total_runtime_ns()  argument
585 	if (ce->ops->update_stats)  in intel_context_get_total_runtime_ns()
586 		ce->ops->update_stats(ce);  in intel_context_get_total_runtime_ns()
588 	total = ce->stats.runtime.total;  in intel_context_get_total_runtime_ns()
589 	if (ce->ops->flags & COPS_RUNTIME_CYCLES)  in intel_context_get_total_runtime_ns()
590 		total *= ce->engine->gt->clock_period_ns;  in intel_context_get_total_runtime_ns()
592 	active = READ_ONCE(ce->stats.active);  in intel_context_get_total_runtime_ns()
599 u64 intel_context_get_avg_runtime_ns(struct intel_context *ce)  in intel_context_get_avg_runtime_ns()  argument
601 	u64 avg = ewma_runtime_read(&ce->stats.runtime.avg);  in intel_context_get_avg_runtime_ns()
603 	if (ce->ops->flags & COPS_RUNTIME_CYCLES)  in intel_context_get_avg_runtime_ns()
604 		avg *= ce->engine->gt->clock_period_ns;  in intel_context_get_avg_runtime_ns()
609 bool intel_context_ban(struct intel_context *ce, struct i915_request *rq)  in intel_context_ban()  argument
611 	bool ret = intel_context_set_banned(ce);  in intel_context_ban()
613 	trace_intel_context_ban(ce);  in intel_context_ban()
615 	if (ce->ops->revoke)  in intel_context_ban()
616 		ce->ops->revoke(ce, rq,  in intel_context_ban()
622 bool intel_context_revoke(struct intel_context *ce)  in intel_context_revoke()  argument
624 	bool ret = intel_context_set_exiting(ce);  in intel_context_revoke()
626 	if (ce->ops->revoke)  in intel_context_revoke()
627 		ce->ops->revoke(ce, NULL, ce->engine->props.preempt_timeout_ms);  in intel_context_revoke()