Re: IO-APIC on nforce2 [PATCH]

From: Len Brown
Date: Wed Apr 21 2004 - 23:02:26 EST


On Fri, 2004-04-16 at 04:27, Jamie Lokier wrote:
> Len Brown wrote:
> > As we expected, an automatic workaround based on chip-set would
> > fail because some BIOS's are fixed and some are not.
>
> Does the workaround actually fail with the fixed BIOSes?

A fixed BIOS will not have a bogus IRQ2->pin-2 mapping,
so the acpi_skip_timer_override workaround would not
find an entry to ignore, and would become a NOP.

So if
1. all nforce2 chipsets have timer connected to pin0
2. we can safely discover we're on nforce2 early enough,
like andi did on x86_64

then we could apply the workaround automatically always
w/o any harm.

-Len


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