[PATCH v1 1/7] thermal/debugfs: Use helper to update trip point overstepping duration

Rafael J. Wysocki
2024-05-09T19:17:53Z

Add a helper for updating trip point overstepping duration to be called
from thermal_debug_tz_trip_down().

Subsequently, it will also be used during resume from system-wide
suspend.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/thermal/thermal_debugfs.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

Index: linux-pm/drivers/thermal/thermal_debugfs.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_debugfs.c
+++ linux-pm/drivers/thermal/thermal_debugfs.c
@@ -645,14 +645,24 @@ unlock:
mutex_unlock(&thermal_dbg->lock);
}

+static void tz_episode_close_trip(struct tz_episode *tze, int trip_id, ktime_t now)
+{
+ struct trip_stats *trip_stats = &tze->trip_stats[trip_id];
+ ktime_t delta = ktime_sub(now, trip_stats->timestamp);
+
+ trip_stats->duration = ktime_add(delta, trip_stats->duration);
+ /* Mark the end of mitigation for this trip point. */
+ trip_stats->timestamp = KTIME_MAX;
+}
+
void thermal_debug_tz_trip_down(struct thermal_zone_device *tz,
const struct thermal_trip *trip)
{
struct thermal_debugfs *thermal_dbg = tz->debugfs;
+ int trip_id = thermal_zone_trip_id(tz, trip);
+ ktime_t now = ktime_get();
struct tz_episode *tze;
struct tz_debugfs *tz_dbg;
- ktime_t delta, now = ktime_get();
- int trip_id = thermal_zone_trip_id(tz, trip);
int i;

if (!thermal_dbg)
@@ -687,13 +697,7 @@ void thermal_debug_tz_trip_down(struct t

tze = list_first_entry(&tz_dbg->tz_episodes, struct tz_episode, node);

- delta = ktime_sub(now, tze->trip_stats[trip_id].timestamp);
-
- tze->trip_stats[trip_id].duration =
- ktime_add(delta, tze->trip_stats[trip_id].duration);
-
- /* Mark the end of mitigation for this trip point. */
- tze->trip_stats[trip_id].timestamp = KTIME_MAX;
+ tz_episode_close_trip(tze, trip_id, now);

/*
* This event closes the mitigation as we are crossing the