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Commit 4185d52d authored by Ram Chandrasekar's avatar Ram Chandrasekar
Browse files

drivers: thermal: Add trace events for thermal device update events 



Add trace events for the actions like set trip temperature,
handle thermal trip and the thermal device update events.

Change-Id: I2157cb5004da50df3abcc45ad72e93719acb7638
Signed-off-by: default avatarRam Chandrasekar <rkumbako@codeaurora.org>
parent e19174d2

drivers/thermal/thermal_core.c

+4 −0
Original line number Diff line number Diff line
@@ -477,6 +477,7 @@ void handle_thermal_trip(struct thermal_zone_device *tz, int trip) 
	 * So, start monitoring again.

	 */

	monitor_thermal_zone(tz);

	trace_thermal_handle_trip(tz, trip);

}



/**
@@ -567,6 +568,7 @@ void thermal_zone_set_trips(struct thermal_zone_device *tz) 
	ret = tz->ops->set_trips(tz, low, high);

	if (ret)

		dev_err(&tz->device, "Failed to set trips: %d\n", ret);

	trace_thermal_set_trip(tz);



exit:

	mutex_unlock(&tz->lock);
@@ -621,6 +623,7 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, 
	if (!tz->ops->get_temp)

		return;



	trace_thermal_device_update(tz, event);

	update_temperature(tz);



	thermal_zone_set_trips(tz);
@@ -1826,6 +1829,7 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) 
				current_target = instance->target;

		}

	}

	trace_cdev_update_start(cdev);

	cdev->ops->set_cur_state(cdev, current_target);

	if (cdev->ops->set_min_state)

		cdev->ops->set_min_state(cdev, min_target);

include/trace/events/thermal.h

+86 −0
Original line number Diff line number Diff line
@@ -45,6 +45,23 @@ TRACE_EVENT(thermal_temperature, 
		__entry->temp)

);



TRACE_EVENT(cdev_update_start,



	TP_PROTO(struct thermal_cooling_device *cdev),



	TP_ARGS(cdev),



	TP_STRUCT__entry(

		__string(type, cdev->type)

	),



	TP_fast_assign(

		__assign_str(type, cdev->type);

	),



	TP_printk("type=%s update start", __get_str(type))

);



TRACE_EVENT(cdev_update,



	TP_PROTO(struct thermal_cooling_device *cdev, unsigned long target,
@@ -98,6 +115,75 @@ TRACE_EVENT(thermal_zone_trip, 
		show_tzt_type(__entry->trip_type))

);



TRACE_EVENT(thermal_handle_trip,



	TP_PROTO(struct thermal_zone_device *tz, int trip),



	TP_ARGS(tz, trip),



	TP_STRUCT__entry(

		__string(thermal_zone, tz->type)

		__field(int, id)

		__field(int, trip)

	),



	TP_fast_assign(

		__assign_str(thermal_zone, tz->type);

		__entry->id = tz->id;

		__entry->trip = trip;

	),



	TP_printk("thermal_zone=%s id=%d handle trip=%d",

		__get_str(thermal_zone), __entry->id, __entry->trip)

);



TRACE_EVENT(thermal_device_update,



	TP_PROTO(struct thermal_zone_device *tz, int event),



	TP_ARGS(tz, event),



	TP_STRUCT__entry(

		__string(thermal_zone, tz->type)

		__field(int, id)

		__field(int, event)

	),



	TP_fast_assign(

		__assign_str(thermal_zone, tz->type);

		__entry->id = tz->id;

		__entry->event = event;

	),



	TP_printk("thermal_zone=%s id=%d received event:%d",

		__get_str(thermal_zone), __entry->id, __entry->event)

);



TRACE_EVENT(thermal_set_trip,



	TP_PROTO(struct thermal_zone_device *tz),



	TP_ARGS(tz),



	TP_STRUCT__entry(

		__string(thermal_zone, tz->type)

		__field(int, id)

		__field(int, low)

		__field(int, high)

	),



	TP_fast_assign(

		__assign_str(thermal_zone, tz->type);

		__entry->id = tz->id;

		__entry->low = tz->prev_low_trip;

		__entry->high = tz->prev_high_trip;

	),



	TP_printk("thermal_zone=%s id=%d low trip=%d high trip=%d",

		__get_str(thermal_zone), __entry->id, __entry->low,

		__entry->high)

);



TRACE_EVENT(thermal_power_cpu_get_power,

	TP_PROTO(const struct cpumask *cpus, unsigned long freq, u32 *load,

		size_t load_len, u32 dynamic_power, u32 static_power),