RE: [PATCH] ACPI/Processor: C1/C3 states promotion and demotion

-----Original Message-----
From: eric.piel-VkQ1JFuSMpfAbQlEx87xDw@public.gmane.org [mailto:eric.piel@tremplin-utc.net]
Sent: Monday, February 09, 2004 10:07 PM
To: len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: [ACPI] [PATCH] ACPI/Processor: C1/C3 states promotion and

Some processors seems to support only C1 and C3 states, for 
instance... mine ;-)
(Pentium III Coppermine). The problem is that, in this case, 
no promotion or
demotion are linking those two states, therefore the 
preocessor never goes to C3!

Hmmm so.. your processor only has C1 and C3 and no C2 right??
and you're saying since there's no C2, it will never go to c3

The attached patch (against kernel 2.6.1) should do the 
trick, that's mainly a
copy-paste of the C2/C3 code. It works fine on my computer 
(and the temperature
really goes down :-) ).

Any idea what is 'threshold_count' and 'latency_ticks'
and what it does? My Processor Pentium M doen't go to C3 much.

 


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