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Subject: Re: [PATCH V2 1/4] powercap/drivers/idle_inject: Specify idle state
 max latency
To:     "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc:     rafael@kernel.org, robh@kernel.org,
        "open list:POWER MANAGEMENT CORE" <linux-pm@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>
References: <20200329220324.8785-1-daniel.lezcano@linaro.org>
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From:   Daniel Lezcano <daniel.lezcano@linaro.org>
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Message-ID: <42519038-66ec-49d8-d77d-ba98a0d9cc50@linaro.org>
Date:   Fri, 3 Apr 2020 13:09:26 +0200
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On 03/04/2020 11:38, Rafael J. Wysocki wrote:
> On Monday, March 30, 2020 12:03:17 AM CEST Daniel Lezcano wrote:
>> Currently the idle injection framework uses the play_idle()
>> function which puts the current CPU in an idle state. The idle
>> state is the deepest one, as specified by the latency constraint
>> when calling the subsequent play_idle_precise() function with the
>> INT_MAX.
>>
>> The idle_injection is used by the cpuidle_cooling device which
>> computes the idle / run duration to mitigate the temperature by
>> injecting idle cycles. The cooling device has no control on the
>> depth of the idle state.
>>
>> Allow finer control of the idle injection mechanism by allowing
>> to specify the latency for the idle state. Thus the cooling
>> device has the ability to have a guarantee on the exit latency of
>> the idle states it is injecting.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> And I'm assuming that you will take care of the series yourself.

Yes, thanks for reviewing.

 - Daniel


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