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Date: Tue, 23 Nov 2010 17:22:44 +0200
From: Andriy Gapon <avg@freebsd.org>
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Cc: freebsd-acpi@freebsd.org, freebsd-current@freebsd.org
Subject: Re: aperf/mperf
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on 20/11/2010 11:54 Andriy Gapon said the following:
> This suggestion sounds quite appealing.
> But I have some concerns.
> What if hardware has the capability, but there is no cpufreq - could these MSRs
> be still useful?  Or are they useful only with cpufreq?  Probably the latter...
> Then, another exotic case - if a driver like est or hwpstate is attached
> "directly", i.e. there is no acpi_perf/_PSS - would the MSRs be still useful?
> Not sure.

Perhaps this could be done in some common code to be shared between est for Intel
and hwpstate and amdtemp for AMD?

-- 
Andriy Gapon