Add _KERNEL guards around most of the definitions in these files.

G/C __HAVE_LEGACY_INTRCNT from cesfic.

Switch cesfic over to the common interrupt dispatch code.

cesfic/intr.h: Expose ipl_cookie_t to userland only with _KMEMUSER.

Probably not necessary but let's be a little more cautious about
this.

cesfic/intr.h: Expose ipl_cookie_t to userland for crash(8).

branches: 1.13.78;
No need to include <m68k/softintr.h>.
Old softintr(9) was superseded by MI softint(9).

branches: 1.12.4; 1.12.8;
Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.11.4; 1.11.6; 1.11.8;
Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.10.4; 1.10.10;
Unify splraiseipl(9) implementation among m68k ports as per
suggestion from isaki@ on port-m68k.

For cesfic (compile test only):
- use static splraise4() for splvm() and remove isrcomputeipl() for IPL_VM
because this port supports only one model
- make makeiplcookie(9) return PSL bits via ipl2psl_table[] rather than
ipl indexes
- make ipl2psl_table[] uint16_t rather than int

branches: 1.9.14; 1.9.18; 1.9.20; 1.9.22;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.8.16; 1.8.18; 1.8.24;
- Shrink ipl_cookie_t from 32-bits to 16-bits (large enough to hold
an SR value or an IPL_* constant).
- Take advange of the smaller ipl_cookie_t to shrink kmutex_t from
16 bytes to 8 bytes by overlapping storage where possible.
- Implement a RAS-based _lock_cas() for mc68010 systems (Sun2). See
sun68k/sun68k/isr.c.

Tested on various m68k platforms, but NOT Sun2. In any case, at least
Sun2 compiles now.

branches: 1.7.2;
MI softintr(9)'fy. Untested.

This port needs much more cleanups, it seems...

branches: 1.6.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

branches: 1.4.20; 1.4.22;
merge ktrace-lwp.

branches: 1.3.16;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

branches: 1.2.16;
Move spl*() interfaces from from param.h to intr.h; for compatibility,
still let them available from param.h as well like all other platforms
currently do.

branches: 1.1.2; 1.1.8;
Initial import of the known working kernel bits for the NetBSD/cesfic
port. cesfic is a VME board with one or two mc68040 processors. See
the README file for details.
The port is working well with a.out userland, there are some problems
with ELF still, like applications running out of memory where it is not
expected. Some parts, in particular the pmap (which was taken from hp300
four years ago), need updating, but this is easier done within the NetBSD
CVS tree.