RE: [PATCH] 1/3 Dynamic cpufreq governor and updates to ACPI P-state driver

[Pallipadi, Venkatesh]

> -----Original Message-----
> From: Ducrot Bruno [mailto:ducrot@xxxxxxxxxxxx] 
> 
> 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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