linux-kernel - [PATCH v2 11/17] perf tools: Move thread to traceid

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Date:   Fri, 24 May 2019 11:35:02 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     acme@...nel.org
Cc:     peterz@...radead.org, mingo@...hat.com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, suzuki.poulose@....com, leo.yan@...aro.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        coresight@...ts.linaro.org
Subject: [PATCH v2 11/17] perf tools: Move thread to traceid_queue

The thread field of structure cs_etm_queue is CPU dependent and as
such need to be part of the cs_etm_traceid_queue in order to support
CPU-wide trace scenarios.

Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 tools/perf/util/cs-etm.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 531bbb355ba4..0d51d6d9a594 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -65,6 +65,7 @@ struct cs_etm_traceid_queue {
 	u64 period_instructions;
 	size_t last_branch_pos;
 	union perf_event *event_buf;
+	struct thread *thread;
 	struct branch_stack *last_branch;
 	struct branch_stack *last_branch_rb;
 	struct cs_etm_packet *prev_packet;
@@ -74,7 +75,6 @@ struct cs_etm_traceid_queue {
 
 struct cs_etm_queue {
 	struct cs_etm_auxtrace *etm;
-	struct thread *thread;
 	struct cs_etm_decoder *decoder;
 	struct auxtrace_buffer *buffer;
 	unsigned int queue_nr;
@@ -415,7 +415,7 @@ static void cs_etm__free_queue(void *priv)
 	if (!etmq)
 		return;
 
-	thread__zput(etmq->thread);
+	thread__zput(etmq->traceid_queues->thread);
 	cs_etm_decoder__free(etmq->decoder);
 	zfree(&etmq->traceid_queues->event_buf);
 	zfree(&etmq->traceid_queues->last_branch);
@@ -503,7 +503,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
 	machine = etmq->etm->machine;
 	cpumode = cs_etm__cpu_mode(etmq, address);
 
-	thread = etmq->thread;
+	thread = etmq->traceid_queues->thread;
 	if (!thread) {
 		if (cpumode != PERF_RECORD_MISC_KERNEL)
 			return 0;
@@ -819,18 +819,21 @@ cs_etm__get_trace(struct cs_etm_queue *etmq)
 static void cs_etm__set_pid_tid_cpu(struct cs_etm_auxtrace *etm,
 				    struct auxtrace_queue *queue)
 {
+	struct cs_etm_traceid_queue *tidq;
 	struct cs_etm_queue *etmq = queue->priv;
 
+	tidq = cs_etm__etmq_get_traceid_queue(etmq, CS_ETM_PER_THREAD_TRACEID);
+
 	/* CPU-wide tracing isn't supported yet */
 	if (queue->tid == -1)
 		return;
 
-	if ((!etmq->thread) && (etmq->tid != -1))
-		etmq->thread = machine__find_thread(etm->machine, -1,
+	if ((!tidq->thread) && (etmq->tid != -1))
+		tidq->thread = machine__find_thread(etm->machine, -1,
 						    etmq->tid);
 
-	if (etmq->thread)
-		etmq->pid = etmq->thread->pid_;
+	if (tidq->thread)
+		etmq->pid = tidq->thread->pid_;
 }
 
 static int cs_etm__synth_instruction_sample(struct cs_etm_queue *etmq,
-- 
2.17.1