Fix language.

Split device_t/softc with misc cosmetic changes.

Use generic atomic_cas_uint() for mutex(9) and rwlock(9), and
remodel old RAS based _lock_cas() implementation for m68010
into genereic atomic_cas_32().
Now sun2 kernel compiles and even works on mul

Use generic atomic_cas_uint() for mutex(9) and rwlock(9), and
remodel old RAS based _lock_cas() implementation for m68010
into genereic atomic_cas_32().
Now sun2 kernel compiles and even works on multiuser. (hehe)

Tested on tme (emulationg 2/120 and 3/150) and (real) 3/80.

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Also account idepth in clock interrupt handlers
(which are registered directly by isr_add_custom())
and use the idepth value for CLKF_INTR().

- Define LOCK_CAS_CHECK() in m68k/frame.h (there because it operates on
a clockframe).
- Call LOCK_CAS_CHECK() in clock_intr() (noted by Izumi Tsutsui).

Convert to timecounters. Since sun2 lacks a separate timer for microsecond
interpolation, we just use the default clock interrupt timer. (100Hz)

merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

for drivers that support only one instance, use a global variable to ensure
that only one instance is configured rather than requiring that its
unit number be zero.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

__KERNEL_RCSID()

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Converted to use the new bus-specific attach args,
and the bus_space_peek_N functions.

Added.