Let pmap_bootstrap() round the "nextpa" argument to a page boundary.

G/C the legacy-and-unused "mem_size" pmap variable, but preserve it for the
machdep cases where it was used (atari, mac68k).

Change the signature of pmap_bootstrap() to return a paddr_t, the
next available PA after the static memory allocation performed in
pmap_bootstrap() itself.

NFC for now -- eventually, this will be used to move system-specific
code out of pmap_bootstrap(), and thus make it more sharable between
system types. (Necessary, but not sufficient, as the kids say...)

Rename pmap_bootstrap_finalize() to pmap_bootstrap2(), and change it
to return a pointer to the lwp0 u-area (in preparation for an upcoming
change).

Other than the return value, NFC.

Remove an obsolete comment.

physmem should be of type psize_t

Also, use PRIxPSIZE when printf(9)ing physmem.

branches: 1.60.6; 1.60.10;
Probe extended memories before pmap_boostrap() for actual fix of PR/45915.

Also expand expected maximum extended memory regions to recognize
upto 1008 MB RAM that is supported by the XM6i emulator.

See my post on port-x68k@ for more details:
http://mail-index.NetBSD.org/port-x68k/2013/10/19/msg000039.html

Probably worth to pullup to netbsd-6.

branches: 1.59.2; 1.59.4;
Reserve more bootstrap kernel PT pages if options EXTENDED_MEMORY is defined
for VA allocation in the extended memory probe function and possible 128MB
memory on 060turbo, as worksaround for x68k specific part of PR/45915.
Fixes GENERIC kernel panic on X68030 even without extended memory.
XXX: we should rather have proper probe function before pmap_bootstrap()

Tested on 060turbo with 128MB SIMM by Y.Sugahara, and also
tested on XM6i with 68030 and custom 128MB memory settings by isaki@.

Should be pulled up to netbsd-6.

branches: 1.58.2;
Sigh, it's been too long since I've done some of this. Fix the RELOC().

Oops - have to RELOC(physmem) here.

The recent kmem changes allocate a large kernel address space before
pmap_init() is called, and the initial kernel PT pages aren't enough
for the allocations pmap_init(). This fails because pmap_kenter_pa()
tries to allocate a new kernel PT page and traps because the pmap has
not been initialized. When computing the number if initial kernel PT
pages, include enough to allow kmem to map the physical memory. This
should fix PR/45915. OK by releng@. One mac68k system has been verified
to boot. Volunteers to test the others welcome. Amigas with at least
up to 128MB of memory were OK, but larger memory will need some adjusting.

branches: 1.55.4; 1.55.8;
IODEVbase is the same address as intiobase, so make it an alias macro
and remove now almost empty x68k_init.c.

branches: 1.54.2;
Tidy up common comments. (Yes, too many dup code...)

Misc cosmetics to reduce diffs among these ports.

Fix one more typo that affects x68k with 040/060.
I hope this is the last one...

fix PR 6724 - convert m68k options to defflag's. this means that
M680[12346] are now available from opt_m68k_arch.h. FPSP meantioned
in the PR has already been fixed, and i could not find any more.

i built these kernels to ensure i did not break their builds:

amiga: GENERIC DRACO
atari: HADES FALCON MILAN-PCIIDE
mac68k: GENERIC
sun2: GENERIC
sun3: GENERIC GENERIC3X
cesfic: attempted GENERIC, does not build due to lack of machine/bus.h
hp300: GENERIC
luna68k: GENERIC
mvme68k: GENERIC
news68k: GENERIC
next68k: GENERIC
x68k: GENERIC

branches: 1.50.2; 1.50.4;
Use appropriate macro during pmap initialization:
- use SYSMAP_VA, SEGSHIFT for Sysmap address and table entries
- use TIA_SIZE, TIB_SIZE for sizes of table entries

Now page size dependent numbers are almost replaced with proper macro.

Tested on atari, hp300, and news68k.

Fix leftover botch in rev 1.48:
Remove initialization of protection_codes[] which has been movde into
pmap_bootstrap_finalize().

Move initialization of protection_codes[] and kernel_pmap()
from MD pmap bootstrap sources to common pmap_bootstrap_finalize().

Tested on atari, hp300, mac68k, and news68k.

XXX: Why is protection_codes[] array initialized at run time?

Sync MMU table initialization with amiga and atari a bit:

- for 040/060, move L2 descs for Sysptmap from the last L2 block in segment
table pages to the contiguous block with ones for segment table mappings

- for 020/030, invalidate ste and pte entries separately since
ste size (TIA_SIZE) and pte size (TIB_SIZE) could be different
on 8KB/page systems

Tested on hp300 (040), mac68k (LC040), and news68k (030)
(and untested on others).

XXX: some more stuff in pmap_bootstrap.c could be moved into
XXX: common pmap_bootstrap_finalize()?

Use proper macro, variable names, types, and assignments for readability.

Allocate lwp0upa (PA of lwp0 uarea) right after kernel rather than
between other page tables to use different mappings for ste/pte pages
as well as amiga and atari. Should resolve XXX comments in next68k and x68k.

Tested on hp300 and mac68k.

No need to initialize lwp0 u-area in pmap_bootstrap()
since it will be done in pmap_bootstrap_finalize().

Use common pmap_bootstrap_finalize() to initialize lwp0 uarea etc.
Also update some comment.
Compile test only.

Kill proc0paddr. Use lwp0.l_addr instead.

Move extern decls for Sysseg, Sysptmap, Sysptsize, mem_size, virtual_avail,
virtual_end, and protection_codes[] to common <m68k/pmap_motorola.h>,
and also make protection_codes[] unsigned.

XXX: avail_start and avail_end should also be moved, but it causes
XXX: -Wshadow warnings in uvm/uvm_page.c:uvm_page_physload() and
XXX: I don't have a good idea of alternative names for now.

Use the global kernel_pmap_ptr pointer in each MD pmap_bootstrap.c
(where MMU is not enabled yet) and make kernel_pmap_store static again.
Also consistently use uintptr_t on address conversion in RELOC() macro.

Tested on hp300 (PA != VA) and news68k (PA == VA).

Move external decl. of intiobase: dev/intiovar.h -> include/cpu.h
Move definition of intiobase: x68k/pmap_bootstrap.c -> x68k/locore.s
These synchronize code with other m68k ports.

There's no need to use initial value to intiobase and IODEVbase.
They are not refered to before it's initialized in pmap_bootstrap().

Swap initialization of intiobase and IODEVbase.
It synchronizes other m68k ports (news68k, mvme68k, ...).

branches: 1.36.16; 1.36.20; 1.36.28;
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: 1.35.10;
Update comments to sync yamt-km merge (Sysmap has been moved).

See also:
http://mail-index.netbsd.org/source-changes/2005/02/23/0004.html

Clean up white spaces and tabs.

branches: 1.33.2; 1.33.4; 1.33.10;
Cast to char* before doing pointer arithmetic.

Allocate msgbufaddr in pmap_bootstrap.c where it's initilized,
and move its declaration into <m68k/pmap_motorola.h>.

- add missed '*'
- vmmap is (char *) in pmap_motorola.h

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.29.26;
merge ktrace-lwp.

branches: 1.28.2;
merge yamt-km branch.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.

branches: 1.27.2;
de-__P, remove register, ansify.

branches: 1.26.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

rcsid

branches: 1.24.2;
Use PAGE_SIZE rather than NBPG.

merge pmap.c for all 4k-page motorola-MMU (or compatible) m68k platforms.

Fix uvm fault at startup on 040/060. (patch by minoura)

branches: 1.21.4; 1.21.8;
Sync. w/ luna68k; eliminate irrelavant code imposed by
the restriction of hp300 hardware and HP-UX compatibility.

Eliminate EIOMAPSIZE.

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

Explicitly include opt_m680x0.h.

branches: 1.17.8;
Move high-memory detect routine.
This seems to fix the problem that it hangs up on 040turbo without
high-memory.

MACHINE_NONCONTIG -> EXTENDED_MEMORY.

Merged minoura_x68k_bus_h branch.

MACHINE_NEW_NONCONTIG is no longer optional
remove non-MNN code

branches: 1.13.6;
Eliminated vm_offset_t and vm_size_t.

sync with -current after a long silence

Back out the defopt for M680?0. As pointed out to me, this breaks ports which
dont use the M680?0 the way Amiga, Atari, Mac68k, and X68k do. I must have
missed this in the past discussion about this project.

Move M680[2346]0 to opt_m68kcpu.h.
XXX Some explicit dependencies could be removed now from the individual
arch/$ARCH/conf/Makefile.$ARCH files, but this is still to be done.

branches: 1.9.2;
Fix compiler warnings.

WARNify, add prototype, remove use of register.

Implement the kernel part of pr-1891. This allows for a more flexible sized
msgbuf. Note that old 'dmesg' and 'syslogd' binaries will continue running,
though old 'dmesg' binaries will output a few bytes of junk at the start of
the buffer, and will miss a few bytes at the end of the buffer.

branches: 1.6.4;
s/x68k_round_page/m68k_round_page/ s/x68k_trunc_page/m68k_trunc_page/
s/x68k_btop/m68k_btop/ s/x68k_ptob/m68k_ptob/

first commit of M68060 and FPU_EMULATE support.
M68060 support by YAMASAKI Yasushi, few arranged by me.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Some cleanup.
- Add missing return-type of function.
- Add missing prototype.
- some gcc -Wall printf warning.

branches: 1.1.1;
Initial revision