linux-kernel - Re: [PATCH v2 3/3] PM / EM: Skip inefficient OPPs

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Message-ID: <20210601085628.75atoc4e34uttqqw@vireshk-i7>
Date:   Tue, 1 Jun 2021 14:26:28 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Vincent Donnefort <vincent.donnefort@....com>
Cc:     Peter Zijlstra <peterz@...radead.org>, rjw@...ysocki.net,
        vincent.guittot@...aro.org, qperret@...gle.com,
        linux-kernel@...r.kernel.org, ionela.voinescu@....com,
        lukasz.luba@....com, dietmar.eggemann@....com
Subject: Re: [PATCH v2 3/3] PM / EM: Skip inefficient OPPs

On 01-06-21, 09:47, Vincent Donnefort wrote:
> Seems like no one has been really convinced about the arguments in favor of
> keeping inefficiencies into EM :) Let me then give a shot with marking the OPPs
> for the next version.

Right, I think this is what you should do:

- Add another flag for OPP entries, and mark them inefficient.

- Whoever traverses the list to find the next frequency (cpufreq here), checks
  that flag somehow (or replicates that to its own table) and get the right
  frequency out.

-- 
viresh