perf/util/intel-bts.c

151 	struct intel_bts_queue *btsq;
153 	btsq = zalloc(sizeof(struct intel_bts_queue));
154 	if (!btsq)
157 	btsq->bts = bts;
158 	btsq->queue_nr = queue_nr;
159 	btsq->pid = -1;
160 	btsq->tid = -1;
161 	btsq->cpu = -1;
163 	return btsq;
170 	struct intel_bts_queue *btsq = queue->priv;
175 	if (!btsq) {
176 		btsq = intel_bts_alloc_queue(bts, queue_nr);
177 		if (!btsq)
179 		queue->priv = btsq;
182 			btsq->cpu = queue->cpu;
183 		btsq->tid = queue->tid;
189 	if (!btsq->on_heap && !btsq->buffer) {
192 		btsq->buffer = auxtrace_buffer__next(queue, NULL);
193 		if (!btsq->buffer)
197 					 btsq->buffer->reference);
200 		btsq->on_heap = true;
272 static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
276 	struct intel_bts *bts = btsq->bts;
286 	sample.pid = btsq->pid;
287 	sample.tid = btsq->tid;
289 	sample.id = btsq->bts->branches_id;
290 	sample.stream_id = btsq->bts->branches_id;
292 	sample.cpu = btsq->cpu;
293 	sample.flags = btsq->sample_flags;
294 	sample.insn_len = btsq->intel_pt_insn.length;
295 	memcpy(sample.insn, btsq->intel_pt_insn.buf, INTEL_PT_INSN_BUF_SZ);
318 static int intel_bts_get_next_insn(struct intel_bts_queue *btsq, u64 ip)
320 	struct machine *machine = btsq->bts->machine;
327 	thread = machine__find_thread(machine, -1, btsq->tid);
335 	if (intel_pt_get_insn(buf, len, x86_64, &btsq->intel_pt_insn))
362 static int intel_bts_get_branch_type(struct intel_bts_queue *btsq,
369 			btsq->sample_flags = PERF_IP_FLAG_BRANCH |
372 			btsq->sample_flags = 0;
373 		btsq->intel_pt_insn.length = 0;
375 		btsq->sample_flags = PERF_IP_FLAG_BRANCH |
377 		btsq->intel_pt_insn.length = 0;
379 		err = intel_bts_get_next_insn(btsq, branch->from);
381 			btsq->sample_flags = 0;
382 			btsq->intel_pt_insn.length = 0;
383 			if (!btsq->bts->synth_opts.errors)
385 			err = intel_bts_synth_error(btsq->bts, btsq->cpu,
386 						    btsq->pid, btsq->tid,
390 		btsq->sample_flags = intel_pt_insn_type(btsq->intel_pt_insn.op);
392 		if (!machine__kernel_ip(btsq->bts->machine, branch->from) &&
393 		    machine__kernel_ip(btsq->bts->machine, branch->to) &&
394 		    btsq->sample_flags != (PERF_IP_FLAG_BRANCH |
397 			btsq->sample_flags = PERF_IP_FLAG_BRANCH |
406 static int intel_bts_process_buffer(struct intel_bts_queue *btsq,
412 	u32 filter = btsq->bts->branches_filter;
423 	if (!btsq->bts->sample_branches)
429 		intel_bts_get_branch_type(btsq, branch);
430 		if (btsq->bts->synth_opts.thread_stack)
431 			thread_stack__event(thread, btsq->cpu, btsq->sample_flags,
434 					    btsq->intel_pt_insn.length,
436 		if (filter && !(filter & btsq->sample_flags))
438 		err = intel_bts_synth_branch_sample(btsq, branch);
445 static int intel_bts_process_queue(struct intel_bts_queue *btsq, u64 *timestamp)
447 	struct auxtrace_buffer *buffer = btsq->buffer, *old_buffer = buffer;
452 	if (btsq->done)
455 	if (btsq->pid == -1) {
456 		thread = machine__find_thread(btsq->bts->machine, -1,
457 					      btsq->tid);
459 			btsq->pid = thread__pid(thread);
461 		thread = machine__findnew_thread(btsq->bts->machine, btsq->pid,
462 						 btsq->tid);
465 	queue = &btsq->bts->queues.queue_array[btsq->queue_nr];
471 		if (!btsq->bts->sampling_mode)
472 			btsq->done = 1;
484 		int fd = perf_data__fd(btsq->bts->session->data);
493 	if (btsq->bts->snapshot_mode && !buffer->consecutive &&
499 	if (!btsq->bts->synth_opts.callchain &&
500 	    !btsq->bts->synth_opts.thread_stack && thread &&
501 	    (!old_buffer || btsq->bts->sampling_mode ||
502 	     (btsq->bts->snapshot_mode && !buffer->consecutive)))
503 		thread_stack__set_trace_nr(thread, btsq->cpu, buffer->buffer_nr + 1);
505 	err = intel_bts_process_buffer(btsq, buffer, thread);
509 	btsq->buffer = auxtrace_buffer__next(queue, buffer);
510 	if (btsq->buffer) {
512 			*timestamp = btsq->buffer->reference;
514 		if (!btsq->bts->sampling_mode)
515 			btsq->done = 1;
522 static int intel_bts_flush_queue(struct intel_bts_queue *btsq)
528 		ret = intel_bts_process_queue(btsq, &ts);
544 		struct intel_bts_queue *btsq = queue->priv;
546 		if (btsq && btsq->tid == tid)
547 			return intel_bts_flush_queue(btsq);
557 		struct intel_bts_queue *btsq;
569 		btsq = queue->priv;
573 		ret = intel_bts_process_queue(btsq, &ts);
584 			btsq->on_heap = false;
699 	struct intel_bts_queue *btsq = priv;
701 	if (!btsq)
703 	free(btsq);