linux-kernel - Re: [PATCH v2 1/1] x86,sched: On AMD EPYC set freq_max = max

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Date:   Tue, 2 Feb 2021 20:00:49 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Giovanni Gherdovich <ggherdovich@...e.cz>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Jon Grimm <Jon.Grimm@....com>,
        Nathan Fontenot <Nathan.Fontenot@....com>,
        Yazen Ghannam <Yazen.Ghannam@....com>,
        Thomas Lendacky <Thomas.Lendacky@....com>,
        Suthikulpanit Suravee <Suravee.Suthikulpanit@....com>,
        Pu Wen <puwen@...on.cn>, Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Michael Larabel <Michael@...ronix.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] x86,sched: On AMD EPYC set freq_max = max_boost in
 schedutil invariant formula

On Tue, Feb 2, 2021 at 7:29 PM Rafael J. Wysocki <rafael@...nel.org> wrote:
>
> On Tue, Feb 2, 2021 at 7:24 PM Peter Zijlstra <peterz@...radead.org> wrote:
> >
> > On Tue, Feb 02, 2021 at 03:17:05PM +0100, Giovanni Gherdovich wrote:
> > > Hello Rafael,
> > >
> > > you haven't replied to this patch, which was written aiming at v5.11.
> >
> > I've tentatively queued this for x86/urgent, but ideally this goes
> > through a cpufreq tree. Rafael, Viresh?
>
> I've missed it, sorry.
>
> I can queue it up tomorrow if all goes well.

So actually I'm not sure about it.

Looks overly complicated to me.