On Mon, Jun 06, 2005 at 11:21:59AM +0200, Andi Kleen wrote:
> > IIRC (from the comment above) several chipsets suffer from this
> > inconsistency, namely the widely used PIIX4(E) and ICH(4 only? or also other
> > ICH-ones?). Therefore, we'd need at least some sort of boot-time check to
> > decide which method to use... and based on the method, we can adjust the
> > priority maybe?
>
> At least on x86-64 there are no ICH4s or PIIX4Es. Actually I think
> there was one early prototype machine from Intel with ICH4, but I am willing
> to ignore these. So please dont do any such things on the x86-64 version.
>
> Also didnt ICH4 already have HPET? it might not be enabled on many
> boxes, but given the chip datasheet one can write enable code to
> fix that.
At least on my notebook, which has an ICH4-M, there is no HPET. AFAIK it
resides on a separate chip which may or may not exist. I'd be glad if the
opposite were true, though :)
Dominik
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