- Use PCI_INTERRUPT_PIN_MAX and I386_PCI_INTERRUPT_LINE_NO_CONNECTION
instead of magic number.
the Following changes are
{Modified with,Approved by} UCHIYAMA Yasushi <uch@netbsd.org>:
- Do not touch a PIRQ router, if the PIRQ is already routed
by the BIOS, or no appropriate IRQ is found for the PIRQ.
The latter prevents a panic on the machine of Frank van der Linden.
- Do not modify a PCI Interrupt Configuration register,
if it is already set by the BIOS, even if it is inconsistent
with the PCI IRQ routing table provided by the BIOS.
(The PCI Interrupt Configuration register seems to be more reliable
than the PCI IRQ routing table.)
This is needed to prevent a incorrect header_fixup() caused
by the incorrect PIR table on a Panasonic Let's Note AL-N2T516J5.
Provide "options PCIBIOS_INTR_FIXUP_FORCE" to retain
previous behavior, i.e. believe the PCI IRQ routing table
and ignore the PCI Interrupt Configuration register.
Although I'm not sure this is really needed.
- Do not modify a PCI Interrupt Configuration register,
if appropriate IRQ is not found for the link.
- Move a pciintr_icu_getclink() call and a pciintr_icu_get_intr()
call from pciintr_link_fixup() to pciintr_link_alloc(),
and only allocate pciintr_link_map if those calls succeeded.
This reduces number of calls of pciintr_icu_getclink(),
and also avoid necessity to validate a clink value in
ICU's {get,set}_{intr,trigger}() functions.
The sanity checks are not removed yet, though.
- Fix uninitialized usage of variable `bitmap' on stage 3
of pciintr_link_fixup().
- Remove a member variable `old_irq' from struct pciintr_link_map.
- Always use 0x%02x for printf format of canonical link value.
- Use DIAGNOSTIC instead of PCIINTR_DEBUG for really weird situation.
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