Detangling the ppbus/ppc interrupt stuff..
jhb at FreeBSD.org
Fri Aug 22 21:42:25 UTC 2008
So I have a patch to try and straighten out the ppbus/ppc interrupt stuff a
bit. Rather than passing IRQ numbers around as ivars, etc., ppc is smart
enough to let child devices ask for SYS_RES_IRQ rid 0 and let them use its
assigned IRQ resource. It then uses an interrupt event to mange the list of
child interrupt handlers which it invokes from its own interrupt handler. I
don't currently have any boxes running HEAD that have anything hooked up to
their ppc0 port, so I'd appreciate folks testing this if possible.
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