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Re: [PATCH v4 02/10] cpufreq: provide default frequency-invariance setter function

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  Re: [PATCH v4 02/10] cpufreq: provide default frequency-invariance  setter function Viresh Kumar <viresh.kumar@linaro.org> - 2017-09-19 20:40 +0200

#1735153 — Re: [PATCH v4 02/10] cpufreq: provide default frequency-invariance setter function

On 25-08-17, 15:31, Dietmar Eggemann wrote:
> Frequency-invariant accounting support based on the ratio of current
> frequency and maximum supported frequency is an optional feature an arch
> can implement.
> 
> Since there are cpufreq drivers (e.g. cpufreq-dt) which can be build for
> different arch's a default implementation of the frequency-invariance
> setter function arch_set_freq_scale() is needed.
> 
> This default implementation is an empty weak function which will be
> overwritten by a strong function in case the arch provides one.
> 
> The setter function passes the cpumask of related (to the frequency
> change) cpus (online and offline cpus), the (new) current frequency and
> the maximum supported frequency.
> 
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
> ---
>  drivers/cpufreq/cpufreq.c | 6 ++++++
>  include/linux/cpufreq.h   | 3 +++
>  2 files changed, 9 insertions(+)

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

-- 
viresh

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