Messages in this thread | | | Date | Tue, 19 Jun 2018 11:47:14 +0200 | From | Juri Lelli <> | Subject | Re: [RFC PATCH v3 10/10] arch_topology: Start Energy Aware Scheduling |
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On 19/06/18 10:40, Quentin Perret wrote: > Hi Pavan, > > On Tuesday 19 Jun 2018 at 14:48:41 (+0530), Pavan Kondeti wrote:
[...]
> > There seems to be a sysfs interface exposed by this driver to change cpu_scale. > > Should we worry about it? I don't know what is the usecase for changing the > > cpu_scale from user space. > > This is something I've been wondering as well. TBH, I'm not sure what to > do in this case. And I'm not sure to know what is the use-case either. > Debugging purpose I assume ? > > Juri, did you have a specific use-case for this feature when the > arch_topology driver was first introduced ? Or was it just to align > with the existing arm/arm64 code ?
It was requested (IIRC) because DT might have bogus values and not be easily modifiable. So, this is another way to get things right for your platform at runtime.
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