"Yinghai Lu" <[email protected]> writes:
> On 12/18/06, Eric W. Biederman <[email protected]> wrote:
>> Thanks. The bug is simply that the new code doesn't setup the
>> ioapic for the cases it intends to test. But it does clear out
>> the original programming. So if the normal good case doesn't work the
>> code is going to have problems.
>
> Please check the patch.
Getting there but I don't think we are quite there yet.
One of the issues that this does not address is that currently our probe
order in check_timer is wrong. We should first check what the BIOS
has told us about. And only if that fails should we start guessing,
common configurations.
So the pin2 case should be tested right after the pin1 case as we do
currently. On most new boards that will be a complete noop.
But it is better than our current blind guess at using ExtINT mode.
I figure after we try what the BIOS has told us about and that
has failed we should first try the common irq 0 apic mappings,
and then try the common ExtINT mappings.
The current code causes me to want to scream, it is so silly.
Eric
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