evbarm/intr.h: Define ipl_cookie_t before including ARM_INTR_IMPL.

Otherwise arm/mutex.h doesn't work, due to a cyclic dependency which
should really be fixed.

branches: 1.28.20;
Don't remove the _LKM #ifdefs, but do s/_LKM/_MODULE/

unidef -U_LKM

Add IST_MPSAFE flag

_setsoftintr is long dead. reap any leftovers from arm.

branches: 1.24.2;
unifdef __OLD_INTERRUPT_CODE

branches: 1.23.2;
Remove unused __NEWINTR defines

branches: 1.22.8; 1.22.16;
sys/device.h is not suitable for such low-level definitions.

Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.

branches: 1.20.18; 1.20.20; 1.20.22;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.19.6; 1.19.8; 1.19.10;
Cleanup softint lossage.

branches: 1.18.6;
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: 1.17.2; 1.17.16; 1.17.18; 1.17.20; 1.17.26;
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.

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.

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: 1.14.18; 1.14.20;
implement splraiseipl() for the following ports.
evbarm, iyonix, cats, netwinder, acorn26

reviewed by Bill Studenmund.

branches: 1.13.2;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

branches: 1.12.18;
Rename IPL_IMP -> IPL_VM.

Some interrupt controllers can select polarity of interrupt signals.
add IST_LEVEL_{LOW,HIGH} and IST_EDGE_{FALLING,RISING,BOTH} for them.

Clean up evbarm interrupt support a little:
* Define an ARM_INTR_IMPL option, which specifies a header file
describing the interrupt implementation for the platform. Use
this instead of the list of EVBARM_BOARDTYPE checks.
* Make the s3c2xx0 interrupt dispatch code a bit more generic, and move
it to a generic location so that other platforms can use it.

This eliminates all uses of the EVBARM_BOARDTYPE stuff, so delete it.

Intel PXA2X0 based and Samsung S3C2XX0 based boards.

Add a new option EVBARM_BOARDTYPE to differentiate between different
evbarm ports. Inline _splraise/_spllower/splx for i80321 and iq80310
for more performance.

branches: 1.7.2; 1.7.6; 1.7.10;
New interrupt framework for NetBSD/evbarm, and accompanying new
interrupt code for the IQ80310 board support package.

XXX The Integrator board support package still uses the old-style
arm32 interrupt code, so some compatibility hacks have been added
for it. When the Integrator uses new-style interrupts, those hacks
can go away.

Use <arm/arm32/psl.h> rather than <machine/psl.h>.

Remove the NEWINTR stuff; it's not used, incomplete, and I'm trying
to detangle the ARM interrupt code.

End the "new ARM includes strategy" experiment. The new strategy
broke too many assumptions makde by other parts of the source tree,
and the strategy and how it was supposed to work was never discussed
on tech-userlevel, nor was it applied consistently (to all ARM ports
and to other ports which have common MACHINE_ARCH code, such as MIPS,
m68k, powerpc).

Verified to complete a full "make build" on cats, dnard, evbarm,
and netwinder.

branches: 1.3.2;
Add code to support machines that don't use NEWINTR.

branches: 1.2.4;
Add a NEWINTR option to reflect the new interrupt/spl being implemented in
evbarm.

more evbarm files (very incomplete).