Re: [PATCH V3 1/2] topology: Allow multiple entities to provide sched_freq_tick() callback
From: Viresh Kumar
Date: Thu Feb 18 2021 - 03:28:07 EST
On 17-02-21, 11:57, Ionela Voinescu wrote:
> See a very useful comment someone added recently :) :
>
> """
> + /*
> + * We don't need to handle CPUFREQ_REMOVE_POLICY event as the AMU
> + * counters don't have any dependency on cpufreq driver once we have
> + * initialized AMU support and enabled invariance. The AMU counters will
> + * keep on working just fine in the absence of the cpufreq driver, and
> + * for the CPUs for which there are no counters available, the last set
> + * value of freq_scale will remain valid as that is the frequency those
> + * CPUs are running at.
> + */
> """
Lol...
--
viresh