30 	struct intel_context *ce = container_of(rcu, typeof(*ce), rcu);  in rcu_context_free()  local
32 	kmem_cache_free(global.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 	return ce;  in intel_context_create()
53 int intel_context_alloc_state(struct intel_context *ce)  in intel_context_alloc_state()  argument
57 	if (mutex_lock_interruptible(&ce->pin_mutex))  in intel_context_alloc_state()
60 	if (!test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) {  in intel_context_alloc_state()
61 		if (intel_context_is_banned(ce)) {  in intel_context_alloc_state()
66 		err = ce->ops->alloc(ce);  in intel_context_alloc_state()
70 		set_bit(CONTEXT_ALLOC_BIT, &ce->flags);  in intel_context_alloc_state()
74 	mutex_unlock(&ce->pin_mutex);  in intel_context_alloc_state()
78 static int intel_context_active_acquire(struct intel_context *ce)  in intel_context_active_acquire()  argument
82 	__i915_active_acquire(&ce->active);  in intel_context_active_acquire()
84 	if (intel_context_is_barrier(ce))  in intel_context_active_acquire()
88 	err = i915_active_acquire_preallocate_barrier(&ce->active,  in intel_context_active_acquire()
89 						      ce->engine);  in intel_context_active_acquire()
91 		i915_active_release(&ce->active);  in intel_context_active_acquire()
96 static void intel_context_active_release(struct intel_context *ce)  in intel_context_active_release()  argument
99 	i915_active_acquire_barrier(&ce->active);  in intel_context_active_release()
100 	i915_active_release(&ce->active);  in intel_context_active_release()
163 static int intel_context_pre_pin(struct intel_context *ce,  in intel_context_pre_pin()  argument
168 	CE_TRACE(ce, "active\n");  in intel_context_pre_pin()
170 	err = __ring_active(ce->ring, ww);  in intel_context_pre_pin()
174 	err = intel_timeline_pin(ce->timeline, ww);  in intel_context_pre_pin()
178 	if (!ce->state)  in intel_context_pre_pin()
181 	err = __context_pin_state(ce->state, ww);  in intel_context_pre_pin()
189 	intel_timeline_unpin(ce->timeline);  in intel_context_pre_pin()
191 	__ring_retire(ce->ring);  in intel_context_pre_pin()
195 static void intel_context_post_unpin(struct intel_context *ce)  in intel_context_post_unpin()  argument
197 	if (ce->state)  in intel_context_post_unpin()
198 		__context_unpin_state(ce->state);  in intel_context_post_unpin()
200 	intel_timeline_unpin(ce->timeline);  in intel_context_post_unpin()
201 	__ring_retire(ce->ring);  in intel_context_post_unpin()
204 int __intel_context_do_pin_ww(struct intel_context *ce,  in __intel_context_do_pin_ww()  argument
211 	if (unlikely(!test_bit(CONTEXT_ALLOC_BIT, &ce->flags))) {  in __intel_context_do_pin_ww()
212 		err = intel_context_alloc_state(ce);  in __intel_context_do_pin_ww()
223 	err = i915_gem_object_lock(ce->timeline->hwsp_ggtt->obj, ww);  in __intel_context_do_pin_ww()
224 	if (!err && ce->ring->vma->obj)  in __intel_context_do_pin_ww()
225 		err = i915_gem_object_lock(ce->ring->vma->obj, ww);  in __intel_context_do_pin_ww()
226 	if (!err && ce->state)  in __intel_context_do_pin_ww()
227 		err = i915_gem_object_lock(ce->state->obj, ww);  in __intel_context_do_pin_ww()
229 		err = intel_context_pre_pin(ce, ww);  in __intel_context_do_pin_ww()
233 	err = i915_active_acquire(&ce->active);  in __intel_context_do_pin_ww()
237 	err = ce->ops->pre_pin(ce, ww, &vaddr);  in __intel_context_do_pin_ww()
241 	err = mutex_lock_interruptible(&ce->pin_mutex);  in __intel_context_do_pin_ww()
245 	if (unlikely(intel_context_is_closed(ce))) {  in __intel_context_do_pin_ww()
250 	if (likely(!atomic_add_unless(&ce->pin_count, 1, 0))) {  in __intel_context_do_pin_ww()
251 		err = intel_context_active_acquire(ce);  in __intel_context_do_pin_ww()
255 		err = ce->ops->pin(ce, vaddr);  in __intel_context_do_pin_ww()
257 			intel_context_active_release(ce);  in __intel_context_do_pin_ww()
261 		CE_TRACE(ce, "pin ring:{start:%08x, head:%04x, tail:%04x}\n",  in __intel_context_do_pin_ww()
262 			 i915_ggtt_offset(ce->ring->vma),  in __intel_context_do_pin_ww()
263 			 ce->ring->head, ce->ring->tail);  in __intel_context_do_pin_ww()
267 		atomic_inc(&ce->pin_count);  in __intel_context_do_pin_ww()
270 	GEM_BUG_ON(!intel_context_is_pinned(ce)); /* no overflow! */  in __intel_context_do_pin_ww()
273 	mutex_unlock(&ce->pin_mutex);  in __intel_context_do_pin_ww()
276 		ce->ops->post_unpin(ce);  in __intel_context_do_pin_ww()
278 	i915_active_release(&ce->active);  in __intel_context_do_pin_ww()
280 	intel_context_post_unpin(ce);  in __intel_context_do_pin_ww()
288 	i915_gem_ww_unlock_single(ce->timeline->hwsp_ggtt->obj);  in __intel_context_do_pin_ww()
293 int __intel_context_do_pin(struct intel_context *ce)  in __intel_context_do_pin()  argument
300 	err = __intel_context_do_pin_ww(ce, &ww);  in __intel_context_do_pin()
310 void intel_context_unpin(struct intel_context *ce)  in intel_context_unpin()  argument
312 	if (!atomic_dec_and_test(&ce->pin_count))  in intel_context_unpin()
315 	CE_TRACE(ce, "unpin\n");  in intel_context_unpin()
316 	ce->ops->unpin(ce);  in intel_context_unpin()
317 	ce->ops->post_unpin(ce);  in intel_context_unpin()
325 	intel_context_get(ce);  in intel_context_unpin()
326 	intel_context_active_release(ce);  in intel_context_unpin()
327 	intel_context_put(ce);  in intel_context_unpin()
333 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_retire()  local
335 	CE_TRACE(ce, "retire runtime: { total:%lluns, avg:%lluns }\n",  in __intel_context_retire()
336 		 intel_context_get_total_runtime_ns(ce),  in __intel_context_retire()
337 		 intel_context_get_avg_runtime_ns(ce));  in __intel_context_retire()
339 	set_bit(CONTEXT_VALID_BIT, &ce->flags);  in __intel_context_retire()
340 	intel_context_post_unpin(ce);  in __intel_context_retire()
341 	intel_context_put(ce);  in __intel_context_retire()
346 	struct intel_context *ce = container_of(active, typeof(*ce), active);  in __intel_context_active()  local
348 	intel_context_get(ce);  in __intel_context_active()
351 	GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->ring->vma->active));  in __intel_context_active()
352 	__intel_ring_pin(ce->ring);  in __intel_context_active()
354 	__intel_timeline_pin(ce->timeline);  in __intel_context_active()
356 	if (ce->state) {  in __intel_context_active()
357 		GEM_WARN_ON(!i915_active_acquire_if_busy(&ce->state->active));  in __intel_context_active()
358 		__i915_vma_pin(ce->state);  in __intel_context_active()
359 		i915_vma_make_unshrinkable(ce->state);  in __intel_context_active()
366 intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)  in intel_context_init()  argument
371 	kref_init(&ce->ref);  in intel_context_init()
373 	ce->engine = engine;  in intel_context_init()
374 	ce->ops = engine->cops;  in intel_context_init()
375 	ce->sseu = engine->sseu;  in intel_context_init()
376 	ce->ring = __intel_context_ring_size(SZ_4K);  in intel_context_init()
378 	ewma_runtime_init(&ce->runtime.avg);  in intel_context_init()
380 	ce->vm = i915_vm_get(engine->gt->vm);  in intel_context_init()
383 	spin_lock_init(&ce->signal_lock);  in intel_context_init()
384 	INIT_LIST_HEAD(&ce->signals);  in intel_context_init()
386 	mutex_init(&ce->pin_mutex);  in intel_context_init()
388 	i915_active_init(&ce->active,  in intel_context_init()
392 void intel_context_fini(struct intel_context *ce)  in intel_context_fini()  argument
394 	if (ce->timeline)  in intel_context_fini()
395 		intel_timeline_put(ce->timeline);  in intel_context_fini()
396 	i915_vm_put(ce->vm);  in intel_context_fini()
398 	mutex_destroy(&ce->pin_mutex);  in intel_context_fini()
399 	i915_active_fini(&ce->active);  in intel_context_fini()
427 void intel_context_enter_engine(struct intel_context *ce)  in intel_context_enter_engine()  argument
429 	intel_engine_pm_get(ce->engine);  in intel_context_enter_engine()
430 	intel_timeline_enter(ce->timeline);  in intel_context_enter_engine()
433 void intel_context_exit_engine(struct intel_context *ce)  in intel_context_exit_engine()  argument
435 	intel_timeline_exit(ce->timeline);  in intel_context_exit_engine()
436 	intel_engine_pm_put(ce->engine);  in intel_context_exit_engine()
439 int intel_context_prepare_remote_request(struct intel_context *ce,  in intel_context_prepare_remote_request()  argument
442 	struct intel_timeline *tl = ce->timeline;  in intel_context_prepare_remote_request()
446 	GEM_BUG_ON(rq->context == ce);  in intel_context_prepare_remote_request()
462 	GEM_BUG_ON(i915_active_is_idle(&ce->active));  in intel_context_prepare_remote_request()
463 	return i915_active_add_request(&ce->active, rq);  in intel_context_prepare_remote_request()
466 struct i915_request *intel_context_create_request(struct intel_context *ce)  in intel_context_create_request()  argument
474 	err = intel_context_pin_ww(ce, &ww);  in intel_context_create_request()
476 		rq = i915_request_create(ce);  in intel_context_create_request()
477 		intel_context_unpin(ce);  in intel_context_create_request()
496 	lockdep_unpin_lock(&ce->timeline->mutex, rq->cookie);  in intel_context_create_request()
497 	mutex_release(&ce->timeline->mutex.dep_map, _RET_IP_);  in intel_context_create_request()
498 	mutex_acquire(&ce->timeline->mutex.dep_map, SINGLE_DEPTH_NESTING, 0, _RET_IP_);  in intel_context_create_request()
499 	rq->cookie = lockdep_pin_lock(&ce->timeline->mutex);  in intel_context_create_request()