Rename the cpu_id() define to cpu_idnum() so that it does not conflict with
dtrace and friends.

branches: 1.20.6;
_setsoftintr is long dead. reap any leftovers from arm.

branches: 1.19.2; 1.19.4;
Remove safepri and use IPL_SAFEPRI instead. This may be defined in a MD
header file (if not, a value of 0 is assmued).

branches: 1.18.14; 1.18.22;
fix splx() function prototype.

branches: 1.17.4; 1.17.12;
Let the shark boot again. Fixes port-shark/38929. While I'm here fix the
splsoft... macros to always raise the IPL (oops!).

branches: 1.16.2; 1.16.4;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.15.6; 1.15.8; 1.15.10;
Cleanup softint lossage.

branches: 1.14.6;
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: 1.13.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.12.2; 1.12.4;
Remove obsolete spllowersoftclock(9).

branches: 1.11.4; 1.11.6; 1.11.8;
Quick and dirty fix for hpcarm build failure, using hpcarm specific
softintr code for now.

branches: 1.10.2; 1.10.4; 1.10.10;
Make ipl_t and ipl_cookie_t 8-bit values. kmutex is now down to 12 bytes
(from 20) on ARM.

Approved by Matt Thomas.

Don't export spl_smasks or soft_interrupts. They are local to intr.c
Make sure that softintr_init() is called when needed.
Assume __HAVE_GENERIC_SOFT_INTERRUPTS is defined (since newlock2 requires it).

Add __HAVE_GENERIC_SOFT_INTERRUPTS support for shark. This was done by
extenting the current arm generic intrs to support softintrs. Add
IPL_SOFTCLOCK, IPL_SOFTNET, IPL_SOFTSERIAL.

branches: 1.7.2;
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: 1.6.18; 1.6.48; 1.6.50;
Rename IPL_IMP -> IPL_VM.

branches: 1.5.2;
Add new spl level -- _SPL_STATCLOCK.

branches: 1.4.2; 1.4.6;
Multiple-inclusion protection.

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.

Increase spl_masks[] size by one and set the extra element to 0.
irq_entry accesses here.

branches: 1.1.2; 1.1.4;
Big patch for merging common include files of the new hpcarm tree and the old arm32
tree into the new arm substree. All moved files are relinked with a stub that included
the file from the new location; this might be done better later.