Re: [PATCH v2 0/6] cpufreq: intel_pstate: Set cpuinfo_min_freq to a lower value with HWP enabled plus cleanups

[Rafael J. Wysocki]

On Sun, Jun 21, 2026 at 11:50 PM srinivas pandruvada
<srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
>
> On Fri, 2026-06-19 at 19:31 +0200, Rafael J. Wysocki wrote:
> > Hi,
> >
> > This is in v2 because technically it is an update of
> >
> > https://lore.kernel.org/linux-pm/2381464.iZASKD2KPV@rafael.j.wysocki/
> >
> > but it contains new patches.
> >
> > This series updates the intel_pstate driver to set cpuinfo_min_freq
> > to a lower
> > value when HWP is enabled to support systems in which CPUs can
> > actually run
> > at performance levels below the current minimum level.
> >
>
> Is this intentional?
>
> HWP_CAP: 0x10f163e
> MSR 0xce(platform_info: 0x804043df8811b00
>
> cpu0/cpufreq/cpuinfo_min_freq
> 100000
>
> cpu0/cpufreq/scaling_min_freq
> 400000

Yes, cpuinfo_min_freq comes from HWP_CAP and the scaling_min_freq
value comes from PLATFORM_INFO if that's what you are asking about.