linux-kernel - Re: [RFT][PATCH 0/2] cpufreq: intel_pstate: Handle _PPC updates on global turbo disable/enable

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Date:   Sun, 3 Mar 2019 23:42:01 +0100
From:   Gabriele Mazzotta <gabriele.mzt@...il.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Chen Yu <yu.c.chen@...el.com>
Subject: Re: [RFT][PATCH 0/2] cpufreq: intel_pstate: Handle _PPC updates on
 global turbo disable/enable

Hi,

I applied these patches on top of 4.20. The max frequency of all the
cores now reflects the actual value and it's updated whenever I
change the power source.

Regards,
Gabriele

On Fri, 1 Mar 2019 at 13:51, Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>
> Hi All,
>
> This is how I would fix the issue reported in BZ 200759 (see this patch series
> from Yu too: https://marc.info/?l=linux-pm&m=155137672924029&w=2).
>
> Patch [1/2] causes intel_pstate to update all policies if it gets a _PPC change
> notification and sees a global turbo disable/enable change.
>
> Patch [2/2] makes it update cpuinfo.max_freq for all policies in those cases.
>
> The patches here have not been tested yet, so testing would be much appreciated.
>
> Of course, comments are welcome too!
>
> Thanks,
> Rafael
>