If you use sys/param.h, you don't need sys/types.h

Make sure pci_intr_map() will perform proper interrupt swizzling for devices
behind a bridge, if the SRM didn't pick an interrupt line for them.

Remove unused last argument of alpha_shared_intr_disestablish().

Constify the what/name parameter of pci_intr_establish().

Tested by myself, sthen, oga, kettenis, and jasper.
Input from sthen and jasper.

ok kettenis

(Manpage follows shortly.)

Modify pci_intr_map() implementation to pass the pci_attach_args to the
per-platform implementation, instead of selected members of it; this allows
us to get rid of some globals, and paves the way for better bridge support
on some models.

First pass at removing clauses 3 and 4 from NetBSD licenses.

Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code that NetBSD has claimed for itself without attributing to the
actual authors.

OK deraadt@

Make dec_xxx_intr_map() fail silently; caller will print a message if
appropriate. Removes unwanted messages that got printed when mapping pins
on PCI-PCI bridges that don't matter.

ok miod@

Rework the interrupt code, shaving some cycles off in the process.
Rather than an "iointr" routine that decomposes a vector into an
IRQ, we maintain a vector table directly, hooking up each "iointr"
routine at the correct vector. This also allows us to hook device
interrupts up to specific vectors.

From thorpej NetBSD

Tested by myself and a number of end-users.

Replace usage of alpha_pci_decompose_tag() with pci_decompose_tag() and
remove alpha_pci_decompose_tag().

From NetBSD

ok martin@

Add a alpha_shared_intr_reset_strays() function that resets the stray
interrupt counter for a given shared interrupt descriptor.
When an interrupt is successfully handled, reset the strays counter,
thus preventing a "slow leak" from eventually shutting off the interrupt
vector.

from NetBSD via KUDO Takashi

Use new event counter API for interrupt counting on alpha. By me, with some
edits by Theo. deraadt@ ok

branches: 1.1.4;
AlphaServer 800 and 1000 support; from NetBSD. Tested by Tor Houghton.
Added to floppy31 still fits.