33 static struct mock_request *first_request(struct mock_engine *engine)  in first_request()  argument
35 	return list_first_entry_or_null(&engine->hw_queue,  in first_request()
40 static void advance(struct mock_engine *engine,  in advance()  argument
44 	mock_seqno_advance(&engine->base, request->base.global_seqno);  in advance()
49 	struct mock_engine *engine = from_timer(engine, t, hw_delay);  in hw_delay_complete()  local
52 	spin_lock(&engine->hw_lock);  in hw_delay_complete()
55 	request = first_request(engine);  in hw_delay_complete()
57 		advance(engine, request);  in hw_delay_complete()
63 	while ((request = first_request(engine))) {  in hw_delay_complete()
65 			mod_timer(&engine->hw_delay, jiffies + request->delay);  in hw_delay_complete()
69 		advance(engine, request);  in hw_delay_complete()
72 	spin_unlock(&engine->hw_lock);  in hw_delay_complete()
91 mock_context_pin(struct intel_engine_cs *engine,  in mock_context_pin()  argument
94 	struct intel_context *ce = to_intel_context(ctx, engine);  in mock_context_pin()
98 		ce->ring = engine->buffer;  in mock_context_pin()
129 	struct mock_engine *engine =  in mock_submit_request()  local
130 		container_of(request->engine, typeof(*engine), base);  in mock_submit_request()
135 	spin_lock_irq(&engine->hw_lock);  in mock_submit_request()
136 	list_add_tail(&mock->link, &engine->hw_queue);  in mock_submit_request()
137 	if (mock->link.prev == &engine->hw_queue) {  in mock_submit_request()
139 			mod_timer(&engine->hw_delay, jiffies + mock->delay);  in mock_submit_request()
141 			advance(engine, mock);  in mock_submit_request()
143 	spin_unlock_irq(&engine->hw_lock);  in mock_submit_request()
146 static struct intel_ring *mock_ring(struct intel_engine_cs *engine)  in mock_ring()  argument
157 	i915_timeline_init(engine->i915, &ring->timeline, engine->name);  in mock_ring()
182 	struct mock_engine *engine;  in mock_engine()  local
186 	engine = kzalloc(sizeof(*engine) + PAGE_SIZE, GFP_KERNEL);  in mock_engine()
187 	if (!engine)  in mock_engine()
191 	engine->base.i915 = i915;  in mock_engine()
192 	snprintf(engine->base.name, sizeof(engine->base.name), "%s", name);  in mock_engine()
193 	engine->base.id = id;  in mock_engine()
194 	engine->base.status_page.page_addr = (void *)(engine + 1);  in mock_engine()
196 	engine->base.context_pin = mock_context_pin;  in mock_engine()
197 	engine->base.request_alloc = mock_request_alloc;  in mock_engine()
198 	engine->base.emit_flush = mock_emit_flush;  in mock_engine()
199 	engine->base.emit_breadcrumb = mock_emit_breadcrumb;  in mock_engine()
200 	engine->base.submit_request = mock_submit_request;  in mock_engine()
202 	i915_timeline_init(i915, &engine->base.timeline, engine->base.name);  in mock_engine()
203 	lockdep_set_subclass(&engine->base.timeline.lock, TIMELINE_ENGINE);  in mock_engine()
205 	intel_engine_init_breadcrumbs(&engine->base);  in mock_engine()
206 	engine->base.breadcrumbs.mock = true; /* prevent touching HW for irqs */  in mock_engine()
209 	spin_lock_init(&engine->hw_lock);  in mock_engine()
210 	timer_setup(&engine->hw_delay, hw_delay_complete, 0);  in mock_engine()
211 	INIT_LIST_HEAD(&engine->hw_queue);  in mock_engine()
213 	engine->base.buffer = mock_ring(&engine->base);  in mock_engine()
214 	if (!engine->base.buffer)  in mock_engine()
217 	if (IS_ERR(intel_context_pin(i915->kernel_context, &engine->base)))  in mock_engine()
220 	return &engine->base;  in mock_engine()
223 	mock_ring_free(engine->base.buffer);  in mock_engine()
225 	intel_engine_fini_breadcrumbs(&engine->base);  in mock_engine()
226 	i915_timeline_fini(&engine->base.timeline);  in mock_engine()
227 	kfree(engine);  in mock_engine()
231 void mock_engine_flush(struct intel_engine_cs *engine)  in mock_engine_flush()  argument
234 		container_of(engine, typeof(*mock), base);  in mock_engine_flush()
247 void mock_engine_reset(struct intel_engine_cs *engine)  in mock_engine_reset()  argument
249 	intel_write_status_page(engine, I915_GEM_HWS_INDEX, 0);  in mock_engine_reset()
252 void mock_engine_free(struct intel_engine_cs *engine)  in mock_engine_free()  argument
255 		container_of(engine, typeof(*mock), base);  in mock_engine_free()
260 	ce = fetch_and_zero(&engine->last_retired_context);  in mock_engine_free()
264 	__intel_context_unpin(engine->i915->kernel_context, engine);  in mock_engine_free()
266 	mock_ring_free(engine->buffer);  in mock_engine_free()
268 	intel_engine_fini_breadcrumbs(engine);  in mock_engine_free()
269 	i915_timeline_fini(&engine->timeline);  in mock_engine_free()
271 	kfree(engine);  in mock_engine_free()