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* question for cpu voltage scaling in linux
@ 2011-01-27  9:11 mihn
  0 siblings, 0 replies; only message in thread
From: mihn @ 2011-01-27  9:11 UTC (permalink / raw)
  To: linux-kernel

Hi,

Sorry for posting cpufreq, linux-acpi as well.

I want to change voltage and frequency seperately.
With cpu-freq, i can change frequency, but cannot change voltage AFAIK.

Can I do this using cpu-freq?

If possible, how can I set voltage with the fixed value?
If not, is there any way to do that?

FYI, i'm using intel i7-core(nehalem) and ubuntu 10.10.
FYI2, i found out i can do using IA32_PERF_CTL register, but there's no
detail from intel.
FYI3, can i change P-state table so that i can only change voltage in P
states?

Thanks,
mihn



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2011-01-27  9:11 question for cpu voltage scaling in linux mihn

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