linux-kernel - Re: [PATCH v7 00/15] Add support for devices in the Energy Model

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Message-ID: <3f6652a5-ad9b-15cb-08a8-160becd3f912@arm.com>
Date:   Fri, 22 May 2020 13:58:12 +0100
From:   Lukasz Luba <lukasz.luba@....com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org, linux-omap@...r.kernel.org,
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        linux-imx@....com
Cc:     Dietmar.Eggemann@....com, cw00.choi@...sung.com,
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        viresh.kumar@...aro.org, nm@...com, sboyd@...nel.org,
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        orjan.eide@....com, rdunlap@...radead.org, mka@...omium.org
Subject: Re: [PATCH v7 00/15] Add support for devices in the Energy Model

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.

Regards,
Lukasz