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

G/C __HAVE_LEGACY_INTRCNT from news68k.

Switch news68k over to the common interrupt dispatch code.

news68k/intr.h: Fix includes. Put some definitions under _KERNEL.

branches: 1.27.32;
s/static inline/static __inline/g for consistency.

branches: 1.26.54;
Remove trailing spaces and TABs.

branches: 1.25.4; 1.25.6;
Include <sys/evcnt.h> instead of <sys/device.h> for struct evcnt
to avoid recursive dependency (though news68k has not been switched
to using intr evcnt yet).

branches: 1.24.2;
__inline -> inline

branches: 1.23.4;
Make cpu_intr_p() inline.

Unify splraiseipl(9) implementation among m68k ports as per
suggestion from isaki@ on port-m68k.

For news68k:
- export ipl2psl_table[] and make it uint16_t
- make makeiplcookie(9) inline
- put PSL_S bit into ipl2psl_table[] rather than adding it in makeiplcookie(9)
- define both IPL_SCHED and IPL_HIGH independently to avoid confusion

branches: 1.21.2; 1.21.4;
Certainly this file is derived from src/sys/arch/x68k/include/intr.h,
so sync copyright notice with it. Approved by martin@.

branches: 1.20.6; 1.20.8; 1.20.10;
- account idepth in all interrupt handlers
- use idepth for CLKF_INTR()

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: 1.18.16; 1.18.18; 1.18.24;
- 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: 1.17.2;
Remove #ifdef _KERNEL since this file is no longer exported.

branches: 1.16.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

- fix prototype for ctrl_int2 port (u_char -> uint8_t) in intr.h
- use proper macro to assert/clear ctrl_int2 port for softintr
- use KDASSERT() rather than #ifdef DEBUG + assert()
- don't count uvmexp.softs twice in softintr_dispatch()

XXX: Maybe we should have common m68k/softintr.c like mips ports.

Implement generic softintr(9) support for news68k.
Mostly taken from mvme68k.

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: 1.12.14; 1.12.16;
Change "inline" back to "__inline" in .h files -- C99 is still too
new, and some apps compile things in C89 mode. C89 keywords stay.

As per core@.

branches: 1.11.2; 1.11.4; 1.11.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.9.16;
splx() doesn't require a return value. (from mvme68k)

branches: 1.8.2;
Remove __P().

branches: 1.7.8;
Remove the use of splimp() from the NetBSD kernel. splnet()
and only splnet() is allowed for the protection of data structures
used by network devices.

branches: 1.6.2;
Make sure everybody has an splvm() and equate it with splimp() (splimp()
is the historical name for this interrupt level, and the historical name
is going to go away in the near future).

Use single_inst_b{set,clr}_b() macro defined in m68k/asm_single.h.

branches: 1.4.2;
Add spllock(). See spl(9) for details.

Make sure access of ssir atomic. (from luna68k)

Modify software interrupt handling a bit.

branches: 1.1.2;
Initial import of news68k port.