CVS log for src/sys/arch/powerpc/include/intr.h

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PR 56922: disabel fast softints for powerpc for now.

Sync with HEAD.

Turn imask into static.

XXX
Other macro etc. in powerpc/intr.h should also be moved into
powerpc/pic/intr.c, or protected by __INTR_PRIVATE.

Sync with HEAD

Revert previous for now:
http://mail-index.netbsd.org/source-changes/2020/04/16/msg116278.html

The reasoning turned out to be wrong; __KERNEL_RCSID() in header files
does *not* overwrite RCSID in main source files. The real problem is that
it inserts its RCSID into *every* object files. However, it can be still
useful even if heavily duplicated.

Stop using __KERNEL_RCSID() in header files; it confuses ident(1) by
overwriting RCSID in main source files.

XXX
The first argument of __KERNEL_RCSID() is neglected for ELF. If we wish
to have RCSID of header files in kernel binary, we need something like
__FBSDID() macro in FreeBSD.

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

Sync with head.

Pull up following revision(s) (requested by rin in ticket #729):

	sys/arch/powerpc/include/intr.h: revision 1.15

Fix !__HAVE_FAST_SOFTINTS build for debugging.

Fix !__HAVE_FAST_SOFTINTS build for debugging.

bump NIRQ to 256 since we're going to use vectors above 128

Sync with HEAD

s/static inline/static __inline/g for consistency.

update from HEAD

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Sync with HEAD

Added MSI/MSI-X and interrupt_distribute(9) support for powerpc.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Fix kern_softint.c errors (tested with WALNUT & EV64260)

sync with head

merge to -current.

Some PICs have the capability to define the interrupt's polarity (OpenPIC
for example). So the accepted interrupt types have been extended to:
- IST_EDGE_FALLING (which is the same as IST_EDGE)
- IST_EDGE_RISING (new)
- IST_LEVEL_LOW (is the same as IST_LEVEL)
- IST_LEVEL_HIGH (new)
Old code will continue to work without modification.

Catchup with rmind-uvmplock merge.

PowerPC now exports a common view of cpu.h, vmparam.h and pmap.h
when building a MODULAR kernel or compiling _MODULE.
It should be noted that MODULAR or _MODULE export a view of the kernel
as being MULTIPROCESSOR (even if isn't).
The shared pmap TLB uses mdpg in places where it used mdpg to avoid
deadly embrance inclusion problems.

intr.h must not include cpu due to deadly embrace with SOFTINT_COUNT.
Cleanup intr.h so MD definitions can overload common definitions.
Rototill pic/intr.c.  Virtual IRQs can now be reclaimed.  separate virq
from hwirq from picirq.  Redo intr mask calculations.
tested on pmppc and macppc (MP).

Change from level to ipl since we aren't dealing a mask anymore, just a
simple value.
Fix intr_calculatemasks to deal with ipl isn't a mask.  Let establish
and disestablish determine the highest ipl for the interrut source being
modified.  No reason to recompute that for every source when only one changes
at a time.  Only change idepth while in the loop.

enable FAST_SOFTINTR support for all ports that use powerpc/pic/
This has been successfully tested on macppc
TODO:
- ibm4xx needs to be adapted
- SMP doesn't work yet, 2nd CPU crashes when trying to leave the idle loop

sync with head.

sync with head

Sync with HEAD.

Fix forgot to commit.
  Support 64-bit imask for powerpc/pic.

Sync with HEAD.

sync with head.

sync with head.

Convert to new 2 clause license

sync with HEAD

Sync with HEAD.

Sync with HEAD.

sync with head

Sync with HEAD.

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.

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Sync with HEAD.

Sync with head.

sync with head.

file intr.h was added on branch matt-armv6 on 2007-11-06 23:20:34 +0000

file intr.h was added on branch yamt-lazymbuf on 2007-10-27 11:27:45 +0000

file intr.h was added on branch vmlocking on 2007-10-23 20:36:02 +0000

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.

More cleanup:
1) Remove lcsplx, strayintr, and foosoft from all the converted ports.
None of this stuff is needed anymore.
2) because lcsplx is just "return spllower", just call spllower from
locore_subr.S instead.
3) Every port (except macppc) had a pretty similar cpu_configure(), so
take the common parts out and make a genppc_cpu_configure() in an attempt
to stop using imask[] outside of intr.c

Make powerpc/intr.h more common than it previously was.  Having done
that, delete all the duplicate entries from the 4 ports that have
converted to shared pic code. Also, commit a minor change to sandpoint
that I forgot to commit earlier (delete an unused variable)

move some common interrupt-related stuff here

file intr.h was initially added on branch ppcoea-renovation.