[LinuxBIOS] GA-M57SLI - Nvidia X Server

yhlu yinghailu at gmail.com
Sun Jul 29 21:23:54 CEST 2007

On 7/29/07, Stefan Reinauer <stepan at coresystems.de> wrote:
> Peter Stuge wrote:
> >> 2. I've lost cpu frequency control (no powernow-k8) so now both my
> >> CPUs are running flat out at 3000 MHz. Core temperatures are
> >> hovering just  below 70C (63C and 67C).
> >>
> >
> > I just had a look at arch/i386/kernel/cpu/cpufreq/powernow-k8.c and
> > it currently depends on ACPI and the BIOS keeping a table of
> > parameters that it needs;
> >
> ...
> > Once the table has been initialized in the driver ACPI is not used
> > at all - the real work is done using rdmsr() and wrmsr().
> >
> > I think it would be easy enough to change the initialization so that
> > ACPI is not required.
> >
> >
> And it means the kernel driver has to maintain alll the tables for all
> CPU revisions and options.
> > AMD: Are these tables board dependent? Why not put the tables,
> > arranged by cpuid, into the powernow driver and do without ACPI?
> >
> >
> I am not AMD, but I guess it is preferred to do the efford once instead
> of once per OS.
> Fixing things that we do wrong in Linux is a bad thing. It will only
> help us with Linux and lock out all others. Did we do this whole free
> bios thing to make it easier to lock others out? Ouch.
that is not the point. you need to do implenmentation in DSDT for
chipset in a clean room.
current nvidia chipset dsdt is belonging to IBV...instead of nvidia. or AMD.


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