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: 1.54.6;
Make KGDB config files just include GENERIC{,3X} and
use <no> keyword of config(9).

branches: 1.53.8; 1.53.16; 1.53.20; 1.53.22;
- Document COMPAT_15 as doing nothing
- Add COMPAT_15 to all the kernel that had COMPAT_14, for the sake of coherency
- Remove the only occurences of #ifdef COMPAT_15 in the tree: for the ARM
ports, COMPAT_15 was always used in conjunction with EXEC_AOUT. Only EXEC_AOUT
matters here.

This address kern/18407

branches: 1.52.2; 1.52.4;
PR/34283: Gene ENonymous: Add IPFILTER_LOOKUP to the default kernel options
Also remove CCITT,NS,NIP

branches: 1.51.2;
Remove 'count' argument for pseudo-devices that ignore it
(vnd, bpfilter, ppp, gif, gre, tun, sl, strip, faith, stf).

bpfilter doesn't accept count anymore.

branches: 1.49.2; 1.49.4; 1.49.6;
Adjust comments for options FFS_NO_SNAPSHOT.

XXX: This option should be mentioned in options(4).

typo in comment. (since 1994?!)

Enable ptyfs by default on the non-install and non small/tiny/ramdisk kernels

64 bit inode changes.

revert "defflag VMSWAP" changes for now.
there seems to be far more people who don't want to edit
their kernel config files than i thought.

add "options VMSWAP" to non INSTALL kernels.

branches: 1.43.6;
Invert FFS_SNAPSHOT to FFS_NO_SNAPSHOT

Add file system snapshots to kernel configs.

- Ffs internal snapshots get compiled in unconditionally.

- File system snapshot device fss(4) added to all kernel configs that
have a disk. Device is commented out on all non-GENERIC kernels.

Reviewed by: Jason Thorpe <thorpej@netbsd.org>

Enable disconnect/reselect for esp(4) on 3/80 by default.

It also implies to enable tagged queueing, which works fine on my 3/80:
---
NetBSD 2.99.15 (CHARIOT) #184: Sun Jan 30 07:13:08 JST 2005
tsutsui@mirage:/usr/src/sys/arch/sun3/compile/CHARIOT
Model: sun3x 80
fpu: mc68882
total memory = 65536 KB
avail memory = 62496 KB
mainbus0 (root)
obio0 at mainbus0
:
dma0 at obio0 addr 0x66001000 ipl 2: rev 0
esp0 at obio0 addr 0x66000000 ipl 2: ESP100, 20MHz, SCSI ID 7
scsibus0 at esp0: 8 targets, 8 luns per target
:
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST31230N, HP04> disk fixed
sd0: 1001 MB, 3992 cyl, 5 head, 102 sec, 512 bytes/sect x 2051460 sectors
sd0: async, 8-bit transfers, tagged queueing
sd1 at scsibus0 target 3 lun 0: <FUJITSU, M1606S-512, 6237> disk fixed
sd1: 1041 MB, 3457 cyl, 6 head, 102 sec, 512 bytes/sect x 2131992 sectors
sd1: async, 8-bit transfers, tagged queueing
boot device: sd0a
:
---
(yes, async but tagged queueing :-)

branches: 1.40.2;
Remove options COMPAT_15 and add options COMPAT_20.

branches: 1.39.4;
Add COMPAT_BSDPTY to the rest of the config files.

Add "options SYSCTL_INCLUDE_DESCR" to a lot of configs, but commented
out in most of them.

branches: 1.37.2;
add COMPAT_15/COMPAT_16

branches: 1.36.2;
Bye Bye UCONSOLE

enable USERCONF by default; it's small and extremely useful to have available.

Enable "pseudo-device clockctl" in all kernels, except
installation related kernels (INSTALL* and RAMDISK*).
This enables rc.conf(5) $ntpd_chroot to be used "out of the box"

branches: 1.33.2; 1.33.4;
Add the INCLUDE_CONFIG_FILE option to all config files. In config
files that are generic (ie, GENERIC, GENERICSBC, GENERIC32, ALL, or
ALPHA), it is uncommented.

Add commented-out USERCONF option. Mainly useful for install media
and can be optionally enabled based on miniroot and ramdisk size
requirements.

add options PIPE_SOCKETPAIR to individual kernel configs
the option is commented out on everything but kernels I was able
to recognize as INSTALL-like or ones for small memory machines

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

- pull in opt_kgdb.h where necessary
- replace opt_kgdb_machdep.h with opt_kgdb.h
- defparam opt_kgdb.h:
KGDB_DEV KGDB_DEVNAME KGDB_DEVADDR KGDB_DEVRATE KGDB_DEVMODE
- move from opt_ddbparam.h to opt_ddb.h:
DDB_FROMCONSOLE DDB_ONPANIC DDB_HISTORY_SIZE DDB_BREAK_CHAR SYMTAB_SPACE
- replace KGDBDEV with KGDB_DEV
- replace KGDBADDR with KGDB_DEVADDR
- replace KGDBMODE with KGDB_DEVMODE
- replace KGDBRATE with KGDB_DEVRATE
- use `9600' instead of `0x2580' for 9600 baud rate
- use correct quotes for options KGDB_DEVNAME="\"com\""
- use correct quotes for options KGDB_DEV="17*256+0"
- remove unnecessary dependancy on Makefile for kgdb_stub.o
- minor whitespace cleanup

branches: 1.28.2; 1.28.8;
Standardise TCP_COMPAT_42 as commented out, grouped with other COMPAT options,
and with the comment '4.2BSD TCP/IP bug compat. Not recommended'
Add commented out 'TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG'
(All hail amiga and atari which make some attempt to automate the
multiplicity of config files...)

Fix various misspellings of compatible/compatibility.

branches: 1.26.2;
switch sun3 to ELF. highlight include:
add "%" prefix to register names in assembly code.
change assembly functions to return values in %a0 instead of %d0.
C symbols no longer prepend an underscore, adjust assembly code for this.
32-bit values are now 32-bit aligned instead of 16-bit aligned,
adjust structure packing and padding to override this where necessary.
make EXEC_ELF std, make EXEC_AOUT and COMPAT_AOUT_M68K optional.
use the MI loadfile() instead of several home-grown versions.

Remove "rnd is EXPERIMANTAL" comments.

don't specify number of ptys if >= 16 (current default initial number)
pty comments: normalize and g/c what is no longer relevant

branches: 1.23.2;
It's time to be COMPAT_14.

branches: 1.22.2; 1.22.4;
sync with GENERIC3X

remove options FIFO; it's now the default

Make comments refer to GENERIC3X, not GENERIC

Move the sun3-vs-sun3x stuff into std.sun3 and std.sun3x
Configure P4 frame buffers at the address of their P4 reg.
Move messy Sun3 bw2 and cg4 configs to included files.

Merge arch/sun3x into arch/sun3

branches: 1.17.4;
Remove the config flags from "si" lines so the driver default will
be used. That also makes it possible to patch the kernel in case
the default option causes boot failures or something...

Add COMPAT_13.

add pseudo-device rnd, commented out

* add commented out DDB_HISTORY_SIZE=100 if DDB exists in config file
* fix up use of 'options<SPACE><TAB>'

branches: 1.13.2;
Add COMPAT_1?

Add VME support

cosmetic

Add the ie driver (and reorder some things)

add a before tab to SCSIVERBOSE

add commented out reference SCSIVERBOSE option

branches: 1.7.4;
cleanup use of whitespace

Document the flags accepted by the esp driver.

Add floppy controller and floppy drive. Also add MS-DOS filesystem for
use with floppies. Remove 'SYMTAB_SPACE' now that we have our own
bootloader.

No longer need SYMTAB_SPACE now that sun3x/stand/* works.
(Thanks, Jeremy!)

Fixed address for bwtwo framebuffer.

New ARP system, supports IPv4 over any hardware link.

Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.

For the detailed change history, look at the commit log entries for
the is-newarp branch.

branches: 1.1.2;
The first GENERIC config for sun3x. Includes new esp driver.