2004-04-23 01:24:24

by Allen Martin

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Subject: RE: IO-APIC on nforce2 [PATCH]

> Allen, is there a possibility to get a clarification from
> Nvidia on that?
> Specifically, assuming both an 8254 and an I/O APIC core are
> integrated
> into the chip, whether OUT0 of the 8254 is unconditionally routed to
> INTIN0 of the I/O APIC or is it configurable somehow.

The 8254 PIT is hardwared to IRQ0 on all nForce chipsets, it can't be routed.

-Allen


2004-04-23 15:39:08

by Maciej W. Rozycki

[permalink] [raw]
Subject: RE: IO-APIC on nforce2 [PATCH]

On Thu, 22 Apr 2004, Allen Martin wrote:

> The 8254 PIT is hardwared to IRQ0 on all nForce chipsets, it can't be routed.

Thanks for this info. Thus the workaround can be unconditional.

--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: [email protected], PGP key available +