linux-kernel - Re: [PATCH v2 2/2] [RFC] CPUFreq: Add support for cpu-perf-dependencies

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Message-ID: <20201012160633.GG16519@bogus>
Date:   Mon, 12 Oct 2020 17:06:33 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Ionela Voinescu <ionela.voinescu@....com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Nicola Mazzucato <nicola.mazzucato@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Viresh Kumar <vireshk@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Chris Redpath <chris.redpath@....com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 2/2] [RFC] CPUFreq: Add support for
 cpu-perf-dependencies

On Thu, Oct 08, 2020 at 05:57:23PM +0200, Rafael J. Wysocki wrote:
> On Thu, Oct 8, 2020 at 5:03 PM Ionela Voinescu <ionela.voinescu@....com> wrote:

[...]

>
> >    The PSD domains (ACPI) and the new DT binding will tell
> >    which CPUs are actually in the same clock domain for whomever is
> >    interested, despite those CPUs not being in the same policy.
>
> And this information hasn't been used so far in those cases.
>

Indeed, do you see that will change for new heterogeneous CPUs ? Are there
any plans to use EAS on those ?

--
Regards,
Sudeep