Re: SMP Interrupt patches

Benny Amorsen (
23 Jan 1998 00:47:12 +0100

>>>>> "lka" == linux kernel account <> writes:

lka> I agree with this.. A table would be nice.. There aren't that
lka> many boards out there are there??

lka> It would be ashame to deprive people of IO-APIC.. It would be
lka> nice to have the kernel detect differnt boards and have a mapping
lka> table (It wouldn't take up much memory).. There should also be a
lka> diasable boot param (incase of a defective/falsely reporting
lka> board), and a manual set (for yet to be supported boards)..

lka> If it was a userspace solution, nobody would ever use it..

Imagine that a distribution runs the userspace IO-APIC detection
program during the installation. Most distributions do a reboot after
succesful installation, and after that reboot the IRQ mapping should
be up.

It does require help from the distributors, but the kernel cannot
contain everything just so it will work even when the distributors
fail to do their jobs. And there are no motherboards that depend on
the new IRQ mapping, right? (That would obviously mean not supporting
DOS or Windows 95... Yeah right)