Messages in this thread | | | Date | Tue, 23 Apr 2024 20:00:32 +0200 | Subject | Re: [PATCH v1 07/16] thermal: gov_power_allocator: Eliminate a redundant variable | From | Daniel Lezcano <> |
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On 23/04/2024 19:54, Rafael J. Wysocki wrote: > On Tue, Apr 23, 2024 at 7:35 PM Daniel Lezcano > <daniel.lezcano@linaro.org> wrote: >> >> On 10/04/2024 18:12, Rafael J. Wysocki wrote: >>> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> >>> >>> Notice that the passive field in struct thermal_zone_device is not >>> used by the Power Allocator governor itself and so the ordering of >>> its updates with respect to allow_maximum_power() or allocate_power() >>> does not matter. >>> >>> Accordingly, make power_allocator_manage() update that field right >>> before returning, which allows the current value of it to be passed >>> directly to allow_maximum_power() without using the additional update >>> variable that can be dropped. >>> >>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> >>> --- >> >> The step_wise and the power allocator are changing the tz->passive >> values, so telling the core to start and stop the passive mitigation timer. >> >> It looks strange that a plugin controls the core internal and not the >> opposite. >> >> I'm wondering if it would not make sense to have the following ops: >> >> .start >> .stop >> >> .start is called when the first trip point is crossed the way up >> .stop is called when the first trip point is crossed the way down >> >> - The core is responsible to start and stop the passive mitigation timer. >> >> - the governors do no longer us tz->passive >> >> The reset of the governor can happen at start or stop, as well as the >> device cooling states. > > I have a patch that simply increments tz->passive when a passive trip > point is passed on the way up and decrements it when a passive trip > point is crossed on the way down. It appears to work reasonably well.
Does it make the governors getting ride of it ? Or at least not changing its value ?
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