Messages in this thread | | | Subject | RE: [PATCH] 1/3 Dynamic cpufreq governor and updates to ACPI P-state driver | Date | Wed, 22 Oct 2003 11:40:15 -0700 | From | "Grover, Andrew" <> |
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> From: Ducrot Bruno [mailto:ducrot@poupinou.org]
> Looking around some other asl, it seems also that if you verify that > _PCT return FFixedHW, but length and address are both different to 0, > it may be possible that a generic driver via MSR could work, but there > is nothing in specs afaik (and specs can be changed if compatible..).
My understanding was that if the operation region is FFixedHW, the parameters are meaningless (and should be 0). FFixedHW means the OS knows without ACPI telling it how to switch states. That is, while R40 lists the MSRs for the addresses, that is useless and confusing, because the OS should a priori know via a driver how to switch, and therefore isn't looking at those parameters.
Regards -- Andy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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