Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

branches: 1.13.36;
Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.12.16; 1.12.18;
Add mips fenv.h (From FreeBSD)

branches: 1.11.6; 1.11.8;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.10.10; 1.10.16;
Remove support for NetBSD/playstation2.

branches: 1.9.48; 1.9.62;
Merge newlock2 to head.

branches: 1.8.4;
don't install <machine/db_machdep.h>, this is kernel only

branches: 1.7.4; 1.7.8;
merge ktrace-lwp.

branches: 1.6.12;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.

branches: 1.5.2;
Merge the nathanw_sa branch.

Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more.

Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

branches: 1.2.4; 1.2.6; 1.2.14;
remove conf.h from install header list.

playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.4; 1.1.6; 1.1.124; 1.1.126; 1.1.128;
playstation2 port

branches: 1.5.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.4.10; 1.4.16;
Remove support for NetBSD/playstation2.

branches: 1.3.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.74; 1.2.76; 1.2.78;
__asm__ -> __asm
__const__ -> const
__inline__ -> inline
__volatile__ -> volatile

branches: 1.1.4; 1.1.6; 1.1.38;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

Provide PRIxBUSADDR, PRIxBUSSIZE, PRIuBUSSIZE, and PRIxBSH for all arches
to follow arm and (generic) mips.

Reviewed by christos.

branches: 1.15.4; 1.15.30;
Use .set arch=r5900 to enable r5900 specific instructions

branches: 1.14.2;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.13.10; 1.13.16;
Remove support for NetBSD/playstation2.

branches: 1.12.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.11.40; 1.11.42; 1.11.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

add a pair of new bus_dma(9) functions:
int _bus_dmatag_subregion(bus_dma_tag_t tag,
bus_addr_t min_addr,
bus_addr_t max_addr,
bus_dma_tag_t *newtag,
int flags)
void _bus_dmatag_destroy(bus_dma_tag_t tag)

that allow a (normally broken/limited) device to restrict the bus address
range it can talk to. this is used by bce(4) to limit DMA addresses to
1GB range, the maximum the chip can address.

all this is from Yorick Hardy <yhardy@uj.ac.za> with input from several
people on tech-kern.

XXX: bus_dma(9) needs an update still.

branches: 1.9.20;
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: 1.8.2; 1.8.4; 1.8.6;
__asm__ -> __asm
__const__ -> const
__inline__ -> inline
__volatile__ -> volatile

merge ktrace-lwp.

branches: 1.6.4;
Add a dm_maxsegsz public member to bus_dmamap_t. This allows a user of the API
to select the maximum segment size for each bus_dmamap_load (up to the maxsegsz
supplied to bus_dmamap_create). dm_maxsegsz is reset to the value supplied to
bus_dmamap_create when the dmamap is unloaded.

branches: 1.5.2; 1.5.10; 1.5.12;
Handle 64bit DMA addresses on PCI for platforms that can (currently only
enabled on amd64). Add a dmat64 field to various PCI attach structures,
and pass it down where needed. Implement a simple new function called
pci_dma64_available(pa) to test if 64bit DMA addresses may be used.
This returns 1 iff _PCI_HAVE_DMA64 is defined in <machine/pci_machdep.h>,
and there is more than 4G of memory.

Introduce BUS_DMA_NOCACHE, and bus_dmamem_map() of i386 supports it.

Fix incorrect ## usage.

branches: 1.2.4;
Make sure that private DMA flags don't overlap with standard DMA flags;
start these at 0x10000 to leave room for an increase in the latter.

branches: 1.1.4; 1.1.6;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.2.8;
- define other DEV_ constants that the local port uses.
- delete cdev_decl(mm) since <sys/conf.h> does it.

branches: 1.1.4; 1.1.6;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.108; 1.1.122;
Replace machine/rnd.h with more appropriate name to share it
with cycle counter based microtime in kern/kern_microtime.c.

Cleanup and clarify the ELFSIZE mess:

We now have 2 variables automatically set in elf_machdep.h:

ARCH_ELFSIZE: the size for userland binaries
KERN_ELFSIZE: the size for the kernel binaries

DB_ELFSIZE has been deleted and KERN_ELFSIZE should have always the
same values DB_ELFSIZE used to have.

In sys/exec_elf.h, if ELFSIZE is not set, it is set to KERN_ELFSIZE
for the kernel and ARCH_ELFSIZE for userland. These defaults should
eliminate the need for most manual ELFSIZE setting.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.10.6;
Seems we use MBR labels

Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.8.10; 1.8.16;
Remove support for NetBSD/playstation2.

If cpu_disklabel includes struct dkbad, define __HAVE_DISKLABEL_DKBAD.
This allows use of subr_disk_mbr on all archs. Default to it for
the rump disk component. No functional change for regular kernels.
(The other option would've been to include dkbad in disklabels
everywhere, but arguably this approach has less possible side-effects,
especially given that wedges and related magic will take over the
world any second now).

branches: 1.6.78; 1.6.92;
merge ktrace-lwp.

Make disklabel(8) and fdisk(8) into "host tools " last step: build
and install ${TOOLDIR}/bin/${MACHINE_GNU_PLATFORM}-disklabel,
${TOOLDIR}/bin/${MACHINE_GNU_PLATFORM}-fdisk by "reaching over" to
the sources in ${NETBSDSRCDIR}/sbin/{disklabel fdisk}/.

To avoid clashes with a build-host's header files, especially on
*BSD, the host-tools versions of fdisk and disklabel search for
#includes such as disklabel.h, disklabel_acorn.h, disklabel_gpt.h,
and bootinfo.h in a new #includes namespace, nbinclude/. That is,
they #include <nbinclude/sys/disklabel.h>, <nbinclude/machine/disklabel.h>,
<nbinclude/sparc64/disklabel.h>, instead of <sys/disklabel.h> and
such. I have also updated the system headers to #include from
nbinclude/-space when HAVE_NBTOOL_CONFIG_H is #defined.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.3.8;
BSD raw partition is obsolete. raw partition is changed to C.

branches: 1.2.2;
change MAXPARTITIONS to 16.

branches: 1.1.4; 1.1.6;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142; 1.1.146;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.1.2; 1.1.18;
Add mips fenv.h (From FreeBSD)

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.12.6;
Adapt to -current

Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.10.10; 1.10.16;
Remove support for NetBSD/playstation2.

branches: 1.9.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.8.6; 1.8.8; 1.8.10;
Don't pull in unrelated gunk.

branches: 1.7.6;
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: 1.6.2;
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: 1.5.8; 1.5.10;
Move declaretions of _spl*() and _{clr,set}softintr() functions
(which are in mips/locore.S) into <mips/locore.h>
from various MD files.

branches: 1.4.6; 1.4.8; 1.4.14;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

branches: 1.3.2; 1.3.34;
_intr_suspend and _intr_resume declarations are moved to intr.h.

branches: 1.2.2;
Merge the thorpej-mips-cache branch onto the trunk. This is an
overhaul of how caches are handled for NetBSD's MIPS ports.

branches: 1.1.2;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

fix various typos in documentation, comments and sysctl device description.
mainly aion -> ation and inlude -> include.

Fix some more uvm header fallout. Add include guards while here.

Declare or #define avail_start and avail_end as appropriate

branches: 1.5.6; 1.5.8;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.4.10; 1.4.16;
Remove support for NetBSD/playstation2.

branches: 1.3.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.74; 1.2.76; 1.2.78;
merge ktrace-lwp.

branches: 1.1.2;
MI part of kloader moved to dev/kloader.c from arch/hpc/hpc/
dreamcast and playstation2 port are changed to use this.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.112; 1.2.126;
Simplify include files that just include <mips/locore.h>.

branches: 1.1.4; 1.1.6; 1.1.14;
playstation2 port

branches: 1.1.4;
Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.108; 1.2.122;
Merge the nathanw_sa branch.

branches: 1.1.2;
file mcontext.h was initially added on branch nathanw_sa.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.4; 1.2.50; 1.2.64;
Merge newlock2 to head.

branches: 1.1.2;
file mutex.h was initially added on branch newlock2.

move DEV_BSIZE, DEV_BSHIFT out of MD param.h, they are same on all ports

also move BLKDEV_IOSIZE, MAXPHYS, but allow override since some ports
have different value (powerpc uses NBPG for BLKDEV_IOSIZE, sun2/sun3
have lower MAXPHYS)

branches: 1.10.6; 1.10.30; 1.10.32;
Rearrange order of includes

Adapt to -current

Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.7.10; 1.7.16;
Remove support for NetBSD/playstation2.

Move MID_MACHINE to <mips/mips_param.h> and use local values so we don't
need to include exec_aout.h

branches: 1.5.56; 1.5.70; 1.5.74;
Protect from multiple inclusion.

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;
Purge CLSIZE, CLSIZELOG2 and MCLOFSET.
Be consistant in the way that MSIZE, MCLSHIFT, MCLBYTES and NMBCLUSTERS
are defined.
Remove old VM constants from cesfic port.
Bump MSIZE to 256 on mipsco (the only one that wasn't already 256).

branches: 1.1.4; 1.1.6;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.3.6; 1.3.30; 1.3.32;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.118; 1.1.132;
Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

Replace machine/rnd.h with more appropriate name to share it
with cycle counter based microtime in kern/kern_microtime.c.

branches: 1.1.4; 1.1.6;
playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.4; 1.2.50; 1.2.64;
Merge newlock2 to head.

branches: 1.1.2;
file rwlock.h was initially added on branch newlock2.

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.8.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.7.10; 1.7.16;
Remove support for NetBSD/playstation2.

branches: 1.6.10; 1.6.24;
Now that __HAVE_TIMECOUNTER and __HAVE_GENERIC_TODR are invariants,
remove the conditionals and the code associated with the undef case.

branches: 1.5.2; 1.5.8;
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: 1.4.10;
Generic soft interrupts are mandatory.

branches: 1.3.10; 1.3.18;
Convert playstation2 to todr and tc. This is not compile tested, as the
current tree isn't buildable even by the cross tools (which I lack), due
to C99. Approved in principle by martin@, simon@

branches: 1.2.2; 1.2.34; 1.2.64;
int128_t and u_int128_t are wrapped in defined(_KERNEL) && defined(MIPS3_5900)

branches: 1.1.4;
playstation2 port

branches: 1.3.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.2.10; 1.2.16;
Remove support for NetBSD/playstation2.

branches: 1.1.4; 1.1.6; 1.1.128; 1.1.142;
playstation2 port

branches: 1.5.6;
Adapt to -current

Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.4; 1.2.6; 1.2.128; 1.2.142;
cosmetic change.

playstation2 port

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.78; 1.2.92;
merge ktrace-lwp.

branches: 1.1.2;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.

branches: 1.4.6;
Bring back the playstation2 port - now that a toolchain for it is
available again.

branches: 1.3.10; 1.3.16;
Remove support for NetBSD/playstation2.

branches: 1.2.18; 1.2.80; 1.2.94;
merge ktrace-lwp.

branches: 1.1.2;
Add empty <machine/wired_map.h> for the MI mips/wired_map.c.