From 976f44133f76eb24becdf3336d832eb3c720b458 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 10 Apr 2024 18:08:12 +0200 Subject: [PATCH] thermal: core: Introduce .manage() callback for thermal governors Introduce a new thermal governor callback called .manage() that will be invoked once per thermal zone update after processing all of the trip points in the core. This will allow governors that look at multiple trip points together to check all of them in a consistent configuration, so they don't need to play tricks with skipping .throttle() invocations that they are not interested in and they can avoid carrying out the same computations for multiple times in one cycle. Signed-off-by: Rafael J. Wysocki Reviewed-by: Lukasz Luba Acked-by: Daniel Lezcano --- drivers/thermal/thermal_core.c | 3 +++ drivers/thermal/thermal_core.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 62fe062d7ff54..221e1924240d8 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -516,6 +516,9 @@ void __thermal_zone_device_update(struct thermal_zone_device *tz, governor->trip_crossed(tz, &td->trip, false); } + if (governor->manage) + governor->manage(tz); + monitor_thermal_zone(tz); } diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 9a3585492558d..95cbf7a3d169e 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -31,6 +31,7 @@ struct thermal_trip_desc { * @unbind_from_tz: callback called when a governor is unbound from a * thermal zone. * @trip_crossed: called for trip points that have just been crossed + * @manage: called on thermal zone temperature updates * @throttle: callback called for every trip point even if temperature is * below the trip point temperature * @update_tz: callback called when thermal zone internals have changed, e.g. @@ -44,6 +45,7 @@ struct thermal_governor { void (*trip_crossed)(struct thermal_zone_device *tz, const struct thermal_trip *trip, bool crossed_up); + void (*manage)(struct thermal_zone_device *tz); int (*throttle)(struct thermal_zone_device *tz, const struct thermal_trip *trip); void (*update_tz)(struct thermal_zone_device *tz, -- 2.30.2