[LinuxBIOS] More MCP55 hacking
Stefan Reinauer
stepan at coresystems.de
Wed Dec 13 00:45:45 CET 2006
* Lu, Yinghai <yinghai.lu at amd.com> [061212 22:45]:
> For later AMD CPU, you could acpi for SRAT, SLIT..., plus irq routing in
> mptable.
> And not use DSDT for irq routing.
Are you certain that Linux reads PIRQ at all when it finds an
SRAT/SLIT/..?
If you implement enough of ACPI to have Linux use the HPET timer, you
need all IRQ routing in ACPI as well. I had cases where Linux would use
the PIRQ/MP table values but never ever read a PIRQ/MP table since it
found a little bit of ACPI.
Stefan
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