Enable VMSWAP_DEFAULT_PLAINTEXT as default.

branches: 1.27.6;
Enable MULTIPROCESSOR by default, but disable it in the RAMDISK
and INSTALL kernels to save some space.

let ath(4) build on alpha

branches: 1.25.20; 1.25.40; 1.25.42;
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: 1.24.10;
Add "options HZ=1024" by default for alpha.

All alpha machines use arch/alpha/alpha/mcclock.c for hardclock(9)
and it always sets MC_RATE_1024_Hz.
The default HZ value also affects tick and tickadj in conf/param.c.

branches: 1.23.30; 1.23.32; 1.23.38;
merge ktrace-lwp.

include "conf/std".

branches: 1.21.10; 1.21.26;
Revert revision 1.20.

Provide _LP64 definition if we are generating LP64 binaries.

branches: 1.19.2; 1.19.4;
Remove prefix construction for softdeps. Add SOFTDEP option to GENERIC.

branches: 1.18.4;
Add

prefix ../gnu/sys
cinclude "conf/files.softdep"
prefix

to all std.* files, so that soft dependencies can be activated using
"options SOFTDEP".

branches: 1.17.2; 1.17.8;
eliminate the PMAP_NEW option by making it required for all ports.
ports which previously had no support for PMAP_NEW now implement
the pmap_k* interfaces as wrappers around the non-k versions.

clean up kernel/config files files for machVM lossage.

Make UVM+PMAP_NEW the standard VM system on NetBSD/alpha.

1. Always link at the high address, now that we can use free ram below
the kernel on most platforms, including all of the entry-level platforms.
2. Kill the comments and options for load address selection.
3. Kill the default -g.

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

clean up NetBSD RCS ID strings

branches: 1.11.2;
move DEVPAGER, SWAPPAGER, VNODEPAGER options into std.alpha since they're
mandatory, and clean up their descriptions.

kill the makeoptions spec of CWARNFLAGS

add -Wcast-qual

add EXEC_ELF64 and EXEC_SCRIPT as standard options

kill OLD_PMAP, since it now takes 'NEW_PMAP' to get the new pmap code.

add -Werror -Wall -Wstrict-prototypes -Wmissing-prototypes as
CWARNFLAGS in the Makefile, but (for the time being, i.e. until that
works) override that with 'makeoptions' in std.alpha.

define OLD_PMAP for all Alpha kernels. Eventually, when a new pmap module
works, this will be removed.

pull in ECOFF exec code with EXEC_ECOFF

wholesale update from my NetBSD/Alpha source tree. Includes:
Support for AXPpci CPUs,
Support for AlphaStation 600 CPUs,
new boot block structure, which requires an 'installboot'
program and works a lot like the NetBSD/sparc boot blocks.

update for current configuration descriptions

preliminary Alpha support. note that NOT ALL OF THE MODIFICATIONS TO
THE REST OF THE KERNEL ARE IN THE TREE YET. Also, some of this is
_incredibly_ hack-ish, etc., but it works.