Re: [PATCH 0/3] drivers: Frequency constraint infrastructure

[Viresh Kumar]

On 28-01-19, 14:04, Qais Yousef wrote:
> But we have no way to enforce this, no? I'm thinking if frequency can be
> constrained in PM QoS framework, then we will end up with some drivers that
> think it's a good idea to use it and potentially end up breaking this "should
> not work against schedutil and similar".
> 
> Or did I miss something?
> 
> My point is that if we introduce something too generic we might end up
> encouraging more users and end up with a complex set of rules/interactions and
> lose some determinism. But I could be reading too much into it :-)

People are free to use notifiers today as well and there is nobody
stopping them. A new framework/layer may actually make them more
accountable as we can easily record which all entities have requested
to impose a freq-limit on CPUs.

-- 
viresh