[PATCH v7 00/15] Add support for devices in the Energy Model

Lukasz Luba lukasz.luba at arm.com
Fri May 22 12:58:12 UTC 2020

Hi Daniel,

On 5/22/20 11:43 AM, Daniel Lezcano wrote:
> Hi Lukasz,
> On 11/05/2020 13:18, Lukasz Luba wrote:
>> Hi all,
>> This patch set introduces support for devices in the Energy Model (EM)
>> framework. It will unify the power model for thermal subsystem. It will
>> make simpler to add support for new devices willing to use more
>> advanced features (like Intelligent Power Allocation). Now it should
>> require less knowledge and effort for driver developer to add e.g.
>> GPU driver with simple energy model. A more sophisticated energy model
>> in the thermal framework is also possible, driver needs to provide
>> a dedicated callback function. More information can be found in the
>> updated documentation file.
>> First 7 patches are refactoring Energy Model framework to add support
>> of other devices that CPUs. They change:
>> - naming convention from 'capacity' to 'performance' state,
>> - API arguments adding device pointer and not rely only on cpumask,
>> - change naming when 'cpu' was used, now it's a 'device'
>> - internal structure to maintain registered devices
>> - update users to the new API
>> Patch 8 updates OPP framework helper function to be more generic, not
>> CPU specific.
>> Patches 9-14 change devfreq cooling, dropping part of old power model and
>> adding registration with Energy Model via exported GPL function.
>> The last path is a simple change for Panfrost GPU driver.
>> The patch set is based on linux-next tag next-20200508.
> Do you think it is possible to respin against linux-pm next ?

Yes, I will do it and send the v8.

> I wanted to try the series but I'm getting non trivial conflicts with
> the devfreq_cooling changes

Let me take care of this.


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