linux-kernel - Re: [PATCH] ACPI: CPPC: add sysfs entry for guaranteed performance

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Date: Fri, 21 Jun 2024 13:09:39 +0200
From: Petr Tesarik <petr.tesarik@...e.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Petr Tesarik <petr.tesarik@...e.com>, Len Brown <lenb@...nel.org>,
 linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: CPPC: add sysfs entry for guaranteed performance

On Fri, 21 Jun 2024 12:16:06 +0200
"Rafael J. Wysocki" <rafael@...nel.org> wrote:

> On Fri, Jun 21, 2024 at 10:49 AM Petr Tesarik <petr.tesarik@...e.com> wrote:
> >
> > On Thu,  6 Jun 2024 13:55:41 +0200
> > Petr Tesarik <ptesarik@...e.com> wrote:
> >  
> > > Expose the CPPC guaranteed performance as reported by the platform through
> > > GuaranteedPerformanceRegister.
> > >
> > > The current value is already read in cppc_get_perf_caps() and stored in
> > > struct cppc_perf_caps (to be used by the intel_pstate driver), so only the
> > > attribute itself needs to be defined.  
> >
> > Are there any objections to exposing this CPPC register through sysfs?
> > I mean, if everybody is OK with it, the patch could be acked and queued
> > for 6.11, right?  
> 
> It actually has been queued already, sorry for the missing notice.
> 
> It's been in linux-next for some time even.

Oh, OK, I could have checked myself. ;-)

Thanks!
Petr T