Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH v1 06/16] thermal: gov_power_allocator: Use .manage() callback instead of .throttle() | Date | Wed, 10 Apr 2024 18:10:14 +0200 |
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The Power Allocator governor really only wants to be called once per thermal zone update and it does a special check to skip the extra, from its perspective, invocations of the .throttle() callback.
Make it use .manage() instead of .throttle().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/thermal/gov_power_allocator.c | 24 +++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-)
Index: linux-pm/drivers/thermal/gov_power_allocator.c =================================================================== --- linux-pm.orig/drivers/thermal/gov_power_allocator.c +++ linux-pm/drivers/thermal/gov_power_allocator.c @@ -395,7 +395,7 @@ static void divvy_up_power(struct power_ } } -static int allocate_power(struct thermal_zone_device *tz, int control_temp) +static void allocate_power(struct thermal_zone_device *tz, int control_temp) { struct power_allocator_params *params = tz->governor_data; unsigned int num_actors = params->num_actors; @@ -410,7 +410,7 @@ static int allocate_power(struct thermal int i = 0, ret; if (!num_actors) - return -ENODEV; + return; /* Clean all buffers for new power estimations */ memset(power, 0, params->buffer_size); @@ -471,8 +471,6 @@ static int allocate_power(struct thermal num_actors, power_range, max_allocatable_power, tz->temperature, control_temp - tz->temperature); - - return 0; } /** @@ -745,40 +743,32 @@ static void power_allocator_unbind(struc tz->governor_data = NULL; } -static int power_allocator_throttle(struct thermal_zone_device *tz, - const struct thermal_trip *trip) +static void power_allocator_manage(struct thermal_zone_device *tz) { struct power_allocator_params *params = tz->governor_data; + const struct thermal_trip *trip = params->trip_switch_on; bool update; lockdep_assert_held(&tz->lock); - /* - * We get called for every trip point but we only need to do - * our calculations once - */ - if (trip != params->trip_max) - return 0; - - trip = params->trip_switch_on; if (trip && tz->temperature < trip->temperature) { update = tz->passive; tz->passive = 0; reset_pid_controller(params); allow_maximum_power(tz, update); - return 0; + return; } tz->passive = 1; - return allocate_power(tz, params->trip_max->temperature); + allocate_power(tz, params->trip_max->temperature); } static struct thermal_governor thermal_gov_power_allocator = { .name = "power_allocator", .bind_to_tz = power_allocator_bind, .unbind_from_tz = power_allocator_unbind, - .throttle = power_allocator_throttle, + .manage = power_allocator_manage, .update_tz = power_allocator_update_tz, }; THERMAL_GOVERNOR_DECLARE(thermal_gov_power_allocator);
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