Re: [PATCH v3 3/3] [RFC] CPUFreq: Add support for cpu-perf-dependencies

[Viresh Kumar]

On 17-11-20, 14:06, Rafael J. Wysocki wrote:
> Is this really a cpufreq thing, though, or is it arch stuff?  I think
> the latter, because it is not necessary for anything in cpufreq.
> 
> Yes, acpi-cpufreq happens to know this information, because it uses
> processor_perflib, but the latter may as well be used by the arch
> enumeration of CPUs and the freqdomain_cpus mask may be populated from
> there.
> 
> As far as cpufreq is concerned, if the interface to the hardware is
> per-CPU, there is one CPU per policy and cpufreq has no business
> knowing anything about the underlying hardware coordination.

It won't be used by cpufreq for now at least and yes I understand your
concern. I opted for this because we already have a cpufreq
implementation for the same thing and it is usually better to reuse
this kind of stuff instead of inventing it over.

-- 
viresh