RE: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH]for idle=C1halt, 2.6.5

From: Craig Bradney
Date: Tue May 04 2004 - 16:17:46 EST


On Tue, 2004-05-04 at 22:38, Jesse Allen wrote:
> Allen Martin wrote:
> > This will require changing the value for register at bus:0 dev:0 func:0
> > offset 6c.
> >
> > Chip Current Value New Value
> > C17 1F0FFF01 1F01FF01
> > C18D 9F0FFF01 9F01FF01
> >
> > Northbridge chip version may be determined by reading the PCI revision
> > ID (offset 8) of the host bridge at bus:0 dev:0 func:0. C1 or greater
> > is C18D.
>
> I believe I have confirmed that the Shuttle AN35N BIOS indeed has this fix as
> of Dec 5th 03 version.
>
> lspci -xxx -vvv
> 00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?)
> (rev c1)
> ...
> 60: 08 00 01 20 20 00 88 80 10 00 00 00 01 ff 01 9f

I can confirm on my Asus A7N8X Deluxe v2.0 with BIOS 1007 (the latest),
that its reporting

60: 08 00 01 20 20 00 88 80 10 00 00 00 01 ff 0f 9f

So, it looks like it needs the new value as per the note.

I haven't applied that patch that was posted yesterday, am awaiting more
reaction from Len, Ross and all.

Craig

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