perf: cs-etm: Print queue number in raw trace dump

Now that we have overlapping trace IDs it's also useful to know what the
queue number is to be able to distinguish the source of the trace so
print it inline. Hide it behind the -v option because it might not be
obvious to users what the queue number is.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240722101202.26915-8-james.clark@linaro.orgSigned-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/cs-etm-decoder/cs-etm-decoder.c

@@ -41,7 +41,7 @@ const u32 INSTR_PER_NS = 10;
 
 struct cs_etm_decoder {
 	void *data;
-	void (*packet_printer)(const char *msg);
+	void (*packet_printer)(const char *msg, void *data);
 	bool suppress_printing;
 	dcd_tree_handle_t dcd_tree;
 	cs_etm_mem_cb_type mem_access;
@@ -202,7 +202,7 @@ static void cs_etm_decoder__print_str_cb(const void *p_context,
 	const struct cs_etm_decoder *decoder = p_context;
 
 	if (p_context && str_len && !decoder->suppress_printing)
-		decoder->packet_printer(msg);
+		decoder->packet_printer(msg, decoder->data);
 }
 
 static int

tools/perf/util/cs-etm-decoder/cs-etm-decoder.h

@@ -60,7 +60,7 @@ struct cs_etm_trace_params {
 
 struct cs_etm_decoder_params {
 	int operation;
-	void (*packet_printer)(const char *msg);
+	void (*packet_printer)(const char *msg, void *data);
 	cs_etm_mem_cb_type mem_acc_cb;
 	bool formatted;
 	bool fsyncs;

tools/perf/util/cs-etm.c

@@ -762,15 +762,22 @@ static void cs_etm__packet_swap(struct cs_etm_auxtrace *etm,
 	}
 }
 
-static void cs_etm__packet_dump(const char *pkt_string)
+static void cs_etm__packet_dump(const char *pkt_string, void *data)
 {
 	const char *color = PERF_COLOR_BLUE;
 	int len = strlen(pkt_string);
+	struct cs_etm_queue *etmq = data;
+	char queue_nr[64];
+
+	if (verbose)
+		snprintf(queue_nr, sizeof(queue_nr), "Qnr:%d; ", etmq->queue_nr);
+	else
+		queue_nr[0] = '\0';
 
 	if (len && (pkt_string[len-1] == '\n'))
-		color_fprintf(stdout, color, "	%s", pkt_string);
+		color_fprintf(stdout, color, "	%s%s", queue_nr, pkt_string);
 	else
-		color_fprintf(stdout, color, "	%s\n", pkt_string);
+		color_fprintf(stdout, color, "	%s%s\n", queue_nr, pkt_string);
 
 	fflush(stdout);
 }