[ACPI] ACPI -> $PIR (IRQ routing on "legacy free" systems)

[<ti...@ja...>]

How about this?
Is it possible to synthesize a correct PIRQ table for satellite 5005-S504,
and modify the $PIR search routine pirq_find_routing_table() in pci-irq.c
to get it from a static memory location (like we do now with substituting
DSDT), and simply let the current logic of pirq routing work as usual?

Does the ACPI table have enough information to produce a working PIRQ
table out of the junk in _PRT and whatnot?

any input from PCI people would be appreciated

there seem to be docs describing format of $PIR at
http://www.microsoft.com/hwdev/archive/BUSBIOS/pciirq.asp

tim

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