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

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Date:   Fri, 22 May 2020 12:43:13 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Lukasz Luba <lukasz.luba@....com>, 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,
        linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-imx@....com
Cc:     Dietmar.Eggemann@....com, cw00.choi@...sung.com,
        b.zolnierkie@...sung.com, rjw@...ysocki.net, sudeep.holla@....com,
        viresh.kumar@...aro.org, nm@...com, sboyd@...nel.org,
        rui.zhang@...el.com, amit.kucheria@...durent.com, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, rostedt@...dmis.org,
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        lorenzo.pieralisi@....com, patrick.bellasi@...bug.net,
        orjan.eide@....com, rdunlap@...radead.org, mka@...omium.org
Subject: Re: [PATCH v7 00/15] Add support for devices in the Energy Model


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 ?

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


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