sun2/sun3:
- build libkern as an archive for non modular builds. from maya@
sun3:
- cut down GENERIC a bunch to bring below 2MB.
- reduce UBC_NWINS, MAXEXEC, and PAGER_MAP_DEFAULT_SIZE to recover
enough lost VA to actually run basic tests.

branches: 1.38.6;
PR port-mac68k/51923
Bump default MAXTSIZ to 32MB for m68k ports, which allos us to use GCC 5.4 on
GENERIC kernels.
Ok jklos

branches: 1.37.18; 1.37.36; 1.37.40; 1.37.44;
Make common kernel module binaries work on both sun3 and sun3x.
Tested on 3/160 (on TME) and (real) 3/80.

XXX: module files can be loaded only on single user?

Raise the blade, make the change, don't quite rearrange to where
it's sane. But improves the non-monolithic kernel case anyway.

branches: 1.35.2; 1.35.4;
Remove SHMMAXPGS from all kernel configs. Dynamically compute the
initial limit as 1/4 of the physical memory. Ensure the limit is at
least 1024 pages, the old default on most platforms.

branches: 1.34.20; 1.34.28; 1.34.34;
defparam PAGER_MAP_SIZE.

branches: 1.33.30; 1.33.48; 1.33.50; 1.33.54;
merge ktrace-lwp.

branches: 1.32.16;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.6;
Use __LDPGSZ (which must be == USRTEXT) as the text address for a.out
executables, and eliminate the USRTEXT constant, which was only used
by the a.out exec code.

branches: 1.30.8;
move parts that are the same from vmparam3{,x}.h to vmparam.h.

reduce PAGER_MAP_SIZE to 4MB, we're short on KVA.

Update for the NKMEMPAGES changes.

CL* discarding.

branches: 1.26.2; 1.26.8;
Garbage-collect the VM_MBUF_SIZE constant. Instead, use the size
(nmbclusters * mclbytes), so that the right amount of KVA space is
allocated if those variables are patched.

branches: 1.25.2; 1.25.4;
Move VM_PHYSSEG_MAX to the common vmparam.h (needed by LKMs).

It appears that pmap_physseg is now required in userland. Too bad.

MNN is no longer optional, remove dead code

Define one page free list, and put all pages on it.

Switch to MACHINE_NEW_NONCONTIG

Merge arch/sun3x into arch/sun3

branches: 1.19.4;
update comment from 1981 on memory and disk prices -- pr-2754 from Curt Sampson

bring mrg-vm-swap2 onto mainilne.

Increase the default datasize limit to 16MB (enough to build libc).

branches: 1.16.2;
Define VM_MAX_KERNEL_ADDRESS using KERN_END instead of a constant.

branches: 1.15.2; 1.15.4;
Define MACHINE_NONCONTIG here instead of in conf/std.sun3.

New DVMA interface, and various cleanup.

Add default value for SHMMAXPGS (from Jason Thorpe - fixes PR#1220)

Update cpu_fork() to eliminate double mapping of kernel stacks.

DVMA slave mapping support.

Lots of changes. Fairly stable now.

new RCS ID format.

snapshot of my private sources

last snapshot before uploading. we still have serious clock problems

snapshot. for uploading. gets lost in swtch after enablertclock()

runs up to and including configure().
todo: exceptions, interrupt support, make isrs affect vector table
kernel/user stacks

snapshot. ready to call configure(), partial integration of torek's config
stuff, i.e it looks to do the right thing but we haven't written any code
yet :)

stupid cleanup; fixes to mon.h; rewrote asm.h based on old asm.h
and the i386 one from jolitz
cleaned up ending of virtaul addr space.

new pmap module

adding include files...not much of this works