Constify struct cfattach.

Convert watchdog(4) devices to use autoconf(9) framework.

ok deraadt, tests on glxpcib and ok mpi

Add a DVACT_WAKEUP op to the *_activate() API. This is called after the
kernel resumes normal (non-cold, able to run processes, etc) operation.
Previously we were relying on specific DVACT_RESUME op

Add a DVACT_WAKEUP op to the *_activate() API. This is called after the
kernel resumes normal (non-cold, able to run processes, etc) operation.
Previously we were relying on specific DVACT_RESUME op's in drivers
creating callback/threads themselves, but that has become too common,
indicating the need for a built-in mechanism.
ok dlg kettenis, tested by a sufficient amount of people

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1 << 31 cleanup. Eitan Adler pointed out that there has been a
resurrection of the bad idiom in the tree.
sufficient review by miod, kettenis, tedu

Enforce ca_activate tree-walks over the entire heirarchy for all events,
cleaning up some shutdown-hook related code on the way.
(A few drivers related to sparc are still skipped at kettenis' request

Enforce ca_activate tree-walks over the entire heirarchy for all events,
cleaning up some shutdown-hook related code on the way.
(A few drivers related to sparc are still skipped at kettenis' request)
ok kettenis mlarkin, tested by many others too

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Swap arguments to wdog_register() since it is nicer, and prepare
wdog_shutdown() for external usage.

Add support for the HPET on this device.

From Matt Dainty.

ok deraadt@

Remove unnecessary tcpib_wdt_unlock() calls.

From Matt Dainty.

Add tcpcib(4) to support Intel Atom E600 watchdog.
From Matt Dainty. ok kettenis@