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Subject: Re: [PATCH][2.5.32] CPU frequency and voltage scaling (0/4)
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Dominik Brodowski <devel@brodo.de>, cpufreq@www.linux.org.uk,
       linux-kernel@vger.kernel.org
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Date: 29 Aug 2002 00:30:06 +0100
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On Wed, 2002-08-28 at 22:08, Linus Torvalds wrote:
> 
> On Wed, 28 Aug 2002, Dominik Brodowski wrote:
> > 
> > "policy input" --> "frequency input" --> cpufreq core --> cpufreq driver
> >   user-space    |                 k e r n e l  -  s p a c e
> 
> No.
> 
> The "policy input" has to filter down ALL THE WAY. If you turn it into a 
> frequency-only input at _any_ time, you've lost information that the 
> lowest levels need. 

So what you are saying is that you want to be sure that something like
"please run at a low speed to save battery" is translated by smarter
cpus into "please save battery" and on spudstop the CPU would go "umm
duh ok 300MHz"

Ok now I think I understand your gripe.




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