hwtracing/coresight/coresight-etm-perf.c

38  * the handle will be cleared. Thus, the event_data may not be accessible
40  * for stopping the trace path. The event_data is guaranteed to stay alive
42  * the ETM. Thus the event_data for the session must be part of the ETM context
47 	struct etm_event_data *event_data;
195 static void free_sink_buffer(struct etm_event_data *event_data)
198 	cpumask_t *mask = &event_data->mask;
201 	if (!event_data->snk_config)
208 	sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
209 	sink_ops(sink)->free_buffer(event_data->snk_config);
216 	struct etm_event_data *event_data;
218 	event_data = container_of(work, struct etm_event_data, work);
219 	mask = &event_data->mask;
222 	free_sink_buffer(event_data);
225 	if (event_data->cfg_hash)
226 		cscfg_deactivate_config(event_data->cfg_hash);
231 		ppath = etm_event_cpu_path_ptr(event_data, cpu);
241 	free_percpu(event_data->path);
242 	kfree(event_data);
248 	struct etm_event_data *event_data;
251 	event_data = kzalloc(sizeof(struct etm_event_data), GFP_KERNEL);
252 	if (!event_data)
256 	mask = &event_data->mask;
270 	event_data->path = alloc_percpu(struct list_head *);
272 	if (!event_data->path) {
273 		kfree(event_data);
277 	return event_data;
282 	struct etm_event_data *event_data = data;
284 	schedule_work(&event_data->work);
315 	struct etm_event_data *event_data = NULL;
317 	event_data = alloc_event_data(cpu);
318 	if (!event_data)
320 	INIT_WORK(&event_data->work, free_event_data);
336 		event_data->cfg_hash = cfg_hash;
339 	mask = &event_data->mask;
411 		*etm_event_cpu_path_ptr(event_data, cpu) = path;
432 	event_data->snk_config =
435 	if (!event_data->snk_config)
439 	return event_data;
442 	etm_free_aux(event_data);
443 	event_data = NULL;
450 	struct etm_event_data *event_data;
461 	if (WARN_ON(ctxt->event_data))
468 	event_data = perf_aux_output_begin(handle, event);
469 	if (!event_data)
484 	if (!cpumask_test_cpu(cpu, &event_data->mask))
487 	path = etm_event_cpu_path(event_data, cpu);
505 	if (!cpumask_test_cpu(cpu, &event_data->aux_hwid_done)) {
506 		cpumask_set_cpu(cpu, &event_data->aux_hwid_done);
517 	/* Save the event_data for this ETM */
518 	ctxt->event_data = event_data;
545 	struct etm_event_data *event_data;
549 	 * If we still have access to the event_data via handle,
553 	    WARN_ON(perf_get_aux(handle) != ctxt->event_data))
556 	event_data = ctxt->event_data;
557 	/* Clear the event_data as this ETM is stopping the trace. */
558 	ctxt->event_data = NULL;
563 	/* We must have a valid event_data for a running event */
564 	if (WARN_ON(!event_data))
574 	    !cpumask_test_cpu(cpu, &event_data->mask)) {
583 	path = etm_event_cpu_path(event_data, cpu);
612 					      event_data->snk_config);