Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH v1 3/6] thermal: gov_fair_share: Rearrange get_trip_level() | Date | Fri, 06 Oct 2023 19:42:48 +0200 |
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Make get_trip_level() use for_each_trip() to iterate over trip points and make it call thermal_zone_trip_id() to obtain the integer ID of a given trip point so as to avoid relying on the knowledge of struct thermal_zone_device internals.
The general functionality is not expected to be changed.
This change causes the governor to use trip pointers instead of trip indices everywhere except for the fair_share_throttle() second argument that will be modified subsequently along with the definition of the governor .throttle() callback.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/thermal/gov_fair_share.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-)
Index: linux-pm/drivers/thermal/gov_fair_share.c =================================================================== --- linux-pm.orig/drivers/thermal/gov_fair_share.c +++ linux-pm/drivers/thermal/gov_fair_share.c @@ -15,29 +15,27 @@ #include "thermal_core.h" -/** - * get_trip_level: - obtains the current trip level for a zone - * @tz: thermal zone device - */ static int get_trip_level(struct thermal_zone_device *tz) { - struct thermal_trip trip; - int count; + const struct thermal_trip *trip, *level_trip = NULL; + int trip_level; - for (count = 0; count < tz->num_trips; count++) { - __thermal_zone_get_trip(tz, count, &trip); - if (tz->temperature < trip.temperature) + for_each_trip(tz, trip) { + if (level_trip && trip->temperature >= tz->temperature) break; + + level_trip = trip; } - /* - * count > 0 only if temperature is greater than first trip - * point, in which case, trip_point = count - 1 - */ - if (count > 0) - trace_thermal_zone_trip(tz, count - 1, trip.type); + /* Bail out if the temperature is not greater than any trips. */ + if (level_trip->temperature >= tz->temperature) + return 0; + + trip_level = thermal_zone_trip_id(tz, level_trip); + + trace_thermal_zone_trip(tz, trip_level, level_trip->type); - return count; + return trip_level; } static long get_target_state(struct thermal_zone_device *tz,
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