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SubjectRE: [PATCH] 1/3 Dynamic cpufreq governor and updates to ACPI P-state driver
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> -----Original Message-----
> From: Ducrot Bruno [mailto:ducrot@poupinou.org]
>
> There is already a patch from Dominik Brodowski for the apci
> p-state which IMHO
> is better at least by design.

Are you referring to cleanup of ACPI P-state driver by Dominik?
That patch is indeed nice and clean. But that is mostly
orthogonal to this patch. I mean,
- SMP awareness in P-state driver
- P-state coordination between HT siblings
will still be required even after Dominik's patch. Though exact
location of these changes will change when applied over Dominik's
patch.

There is a small overlap in handling MSR based P-state transitions,
but that is a real minor change in my patch and I am reusing most
of the existing IO based transitions code for MSR based ones.


> Your do not handle correctly
> other processors
> than Intel.

I am sorry. I do not understand this comment.
- Major part of Patch 1 is adding SMP awareness, which has
nothing specific to Intel at all.
- A part of patch 1 adds MSR based transition capability.
This is based on ACPI spec. It will work any processor
that is ACPI compatible and again there are no specific
checks for Intel here.


> But the HT stuff may be interresting, though.

Thanks.
-Venkatesh
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