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References: <20221208111852.386731-1-perry.yuan@amd.com>
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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Thu, 8 Dec 2022 12:36:23 +0100
Message-ID: <CAJZ5v0grDdCtWdKHEybb9kX_JWHsb_4x-7eA6mmiRbBaTmDSxg@mail.gmail.com>
Subject: Re: [PATCH v7 00/13] Implement AMD Pstate EPP Driver
To:     Perry Yuan <perry.yuan@amd.com>
Cc:     rafael.j.wysocki@intel.com, Mario.Limonciello@amd.com,
        ray.huang@amd.com, viresh.kumar@linaro.org, Deepak.Sharma@amd.com,
        Nathan.Fontenot@amd.com, Alexander.Deucher@amd.com,
        Shimmer.Huang@amd.com, Xiaojian.Du@amd.com, Li.Meng@amd.com,
        wyes.karny@amd.com, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
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Hi,

On Thu, Dec 8, 2022 at 12:19 PM Perry Yuan <perry.yuan@amd.com> wrote:
>
> Hi all,
>
> This patchset implements one new AMD CPU frequency driver
> `amd-pstate-epp` instance for better performance and power control.
> CPPC has a parameter called energy preference performance (EPP).
> The EPP is used in the CCLK DPM controller to drive the frequency that a core
> is going to operate during short periods of activity.
> EPP values will be utilized for different OS profiles (balanced, performance, power savings).

I honestly don't think that this work is ready for 6.2.

The number of patches in the series seems to change frequently and
there are active discussions around specific patches.

Accordingly, I will not consider applying it until 6.2-rc1 is out.

Thanks!