performance measurements: add CONFIG for perf meas

Add config to enable global performance measurements.

Signed-off-by: Tobiasz Dryjanski <tobiaszx.dryjanski@intel.com>

Author: tobonex

src/debug/telemetry/Kconfig

@@ -9,3 +9,12 @@ config SOF_TELEMETRY
 	  systick_info measurement which measures scheduler task performance and may
 	  slightly affect overall performance.
 
+config SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS
+	bool "enable performance measurements"
+	default n
+	help
+	  Enables performance measurements. Requires ADSP_MW interface. Each created component
+	  can have its performance checked by measuring execution time of copy function.
+	  Performance records are stored in the limited number of slots in Memory Window 3,
+	  so only a certain number (PERFORMANCE_DATA_ENTRIES_COUNT) of components can be measured.
+

src/debug/telemetry/telemetry.c

@@ -23,11 +23,14 @@ LOG_MODULE_DECLARE(ipc, CONFIG_SOF_LOG_LEVEL);
 
 /* Systic variables, one set per core */
 static int telemetry_systick_counter[CONFIG_MAX_CORE_COUNT];
+#ifdef CONFIG_SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS
 static int telemetry_prev_ccount[CONFIG_MAX_CORE_COUNT];
 static int telemetry_perf_period_sum[CONFIG_MAX_CORE_COUNT];
 static int telemetry_perf_period_cnt[CONFIG_MAX_CORE_COUNT];
 static struct telemetry_perf_queue telemetry_perf_queue[CONFIG_MAX_CORE_COUNT];
+#endif
 
+#ifdef CONFIG_SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS
 static void telemetry_perf_queue_append(struct telemetry_perf_queue *q, size_t element)
 {
 	if (!q->full) {
@@ -59,6 +62,7 @@ static size_t telemetry_perf_queue_avg(struct telemetry_perf_queue *q)
 		return 0;
 	return q->sum / q->size;
 }
+#endif
 
 int telemetry_init(void)
 {
@@ -107,7 +111,7 @@ void telemetry_update(uint32_t begin_stamp, uint32_t current_stamp)
 			    systick_info[prid].max_time_elapsed);
 	systick_info[prid].last_ccount = current_stamp;
 
-#ifdef SOF_PERFORMANCE_MEASUREMENTS
+#ifdef CONFIG_SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS
 	const size_t measured_systick = begin_stamp - telemetry_prev_ccount[prid];
 
 	telemetry_prev_ccount[prid] = begin_stamp;

src/include/sof/debug/telemetry/telemetry.h

@@ -12,8 +12,6 @@
 #define SOF_AVG_PERF_MEAS_DEPTH 64
 /* Number of runs taken to calculate average (algorithm resolution) */
 #define SOF_AVG_PERF_MEAS_PERIOD 16
-/* disables calculating systick_averages */
-#define SOF_PERFORMANCE_MEASUREMENTS
 
 /* to be moved to Zephyr */
 #define WIN3_MBASE DT_REG_ADDR(DT_PHANDLE(DT_NODELABEL(mem_window3), memory))