Tab/whitespace cleanup.

branches: 1.32.12; 1.32.22; 1.32.26;
Add a flags argument to pmap_kenter_pa(9).
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006434.html
No objections.

Remove clause 3 and 4 from TNF licenses

branches: 1.30.52; 1.30.54; 1.30.56;
- change find_prom_map() to take paddr_t and return vaddr_t rather than
bus_space_handle_t since bus space handle without bus space tag looks weird
- replace old sun3 obio_find_mapping() with new common find_prom_map()
- add bus_space_vaddr(), from hp300

Unmap pmap region in bus_mapout() as well as sun3/sun3/bus_subr.c does.

branches: 1.28.20; 1.28.22;
merge ktrace-lwp.

branches: 1.27.2;
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: 1.26.2;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.25.8;
__KERNEL_RCSID()

branches: 1.24.2;
Use PAGE_SIZE rather than NBPG.

branches: 1.23.4;
replace pmap_enter() with pmap_kenter_pa() where appropriate.

Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

branches: 1.21.2;
- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.20.2;
Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative. It may be possible to
optimize these a little more.

branches: 1.19.2;
splimp() -> splvm()

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

remove/move more mach vm header files:

<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.

Update for pmap_enter() API change. No functional difference.

branches: 1.15.8; 1.15.10; 1.15.14;
Changes for modified pmap_enter() API:
* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot. Also, DO NOT use
pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
access_type = 0. This should probably be revisited.

completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

First cut at UVM support. Compiles, but not tested yet.

Fix a warning

Factor *peek out of bus_subr.c and move it to autoconf.c
(to reduce duplication). Add bus_tmapin and bus_tmapout
for use in probe functions (gets a temporary mapping).
Add bus_mapout() to undo bus_mapin() if needed.

Merge arch/sun3x into arch/sun3

branches: 1.9.4;
Add VME support

s/_trunc_page/m68k_trunc_page/

Undo changes which make pmap_xxxx_page() functions re-entrant; just block
all interrupts which might cause re-entrancy.

Allow virtual addresses which are not managed by the MI VM system to
participate in the PV system.

Remove a few frivoulous TLB cache flushes.

Coded to work with new lock system for tmp_vpages.

Moved bus_scan() and bus_print() here from autoconf.c
because they are now different in sun3 vs sun3x.

s/sun3x_/_/ in sun3x_(round|trunc)_(page|seg) macros

branches: 1.3.2;
Get rid of inclusion of pmap_pvt.h and use the standard pmap functions for
mapping.

Suport size=4 in bus_peek(), and clean out some junk.

Move bus_peek(), bus_mapin() here from autoconf.c so the latter
may be shared with the sun3 port.

Consistently use "intr_depth" as the name of the interrupt depth counter
on m68k platforms.

Provide a m68k_count_intr() macro that hides the details of how interrupts
are counted, and also ensures that ci_data.cpu_nintr is incremented.

G/C __HAVE_LEGACY_INTRCNT from the sun68k platforms.

Don't bother with isr_add_custom(). It's just a thin wrapper around
vec_set_entry(), so just use vec_set_entry() directly.

For ports with __HAVE_LEGACY_INTRCNT, turn intrcnt[] and derived
variables into u_int, to match with kern/subr_evcnt.c.

branches: 1.40.42; 1.40.44;
Tab/whitespace cleanup.

branches: 1.39.8; 1.39.18; 1.39.22;
Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits. Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

branches: 1.38.4;
Fix language.

branches: 1.37.4;
Don't forget to initialize sc_dev.

Split device_t and softc for MI mk48txx(4) and intersil7170(4) clocks,
and other related misc cosmetics.

branches: 1.35.6;
Also account idepth in clock interrupt handlers
(which are registered directly by isr_add_custom())
and use the idepth value for CLKF_INTR().

Move todr_attach(9) calls from each MD attachment to MI intersil7170_attach().

- move todr_attach(9) calls from each MD attachment to MI mk48txx_attach()
- don't clear todr_setwen in mk48txx_attach() since it might be set by
MD attachments

branches: 1.32.28; 1.32.34; 1.32.42;
Make sun3 port use MI mk48txx(4) and intersil7170(4) TOD clock drivers
with bus_space(9) support.
Note clock device name in obio.sun3 is renamed to oclock to use the same
MI attribute (intersil7170) with sun3x.

Tested on 3/80 and TME emulating 3/120 (but not on 3/4xx VME monsters).

branches: 1.31.2; 1.31.4;
Update sun3 to use timecounters (interrupt clock only) and generic-todr.

branches: 1.30.4; 1.30.8;
merge ktrace-lwp.

branches: 1.29.2;
Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.27.8;
Count clock interrupts.
clock_intr() functions on sun3 are called directly without dispatchers.

XXX should use evcnt(9)?

KNF a bit.

Move UCB-licensed code from 4-clause to 3-clause licence.

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

__KERNEL_RCSID()

branches: 1.23.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.20.6;
bcopy() -> memcpy(), bzero() -> memset()

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.18.4;
Remove some of broken cf_unit usage.

check whether tv_usec >= 1000000

branches: 1.16.14;
Default the interrupt priority in match functions.

Merge arch/sun3x into arch/sun3

branches: 1.14.4;
Update for config changes.

Make the "hydra" call leds_hydra() from clock_attach().

oops...

Drivers that use obio_mapin should enforce OBIO attachment
(just to be paranoid).

Add "oclock" support for the Sun3/470.

Fix race conditions that allowed the interrupt latch register to have
the wrong value. Now using the <m68k/asm_single.h> stuff from Leo.

Make this use sys/dev/clock_subr.[ch]

Must convert from/to BCD when reading/writing the clock chip.

branches: 1.6.4;
Kill sunmon.h

Check interrupt_reg==0, not clock_va (Oops!)

Just return if clock_va is not set.
Use <sun3/sun3/sunmon.h> for abort.

Replace the intersil7170 stuff with mostek48t02 stuff.
XXX: Still need to move date conversion functions to
XXX: libkern or somewhere...

Fixed leap year bug. (Doesn't happen until 2100, but still important.)

branches: 1.1.1;
Initial revision

fix a/an grammar in obvious cases

branches: 1.45.2;
Remove unnecessary <sys/malloc.h>.

Use vmem(9) rather than extent(9) to manage DVMA mappings.

fix variable usage

Tab/whitespace cleanup.

branches: 1.41.6; 1.41.10;
converting extent(9) from malloc(9) to kmem(9)
preceding kmem-vmem-pool-uvm patch

releng@ acknowledged

branches: 1.40.12; 1.40.16;
Use lwp_getpcb() on sparc{64} and sun2/3 MD code, clean from struct user usage.

Add a zero argument to pmap_kenter_pa() invocations.
According to cegger@ this is the right thing to do for the moment.

Remove clause 3 and 4 from TNF licenses

branches: 1.37.40; 1.37.42; 1.37.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type. A
future commit will replace use of TRUE and FALSE with true and false.

branches: 1.34.2;
Fix botch in #ifdef DIAGNOSTIC.

Implement bus_dmamap_load(9) and bus_dmamap_unload(9) for sun3x.

KNF

First attempt at bus_space(9) support for sun3 with common sun68k/bus.c:
- make sun3 port use common sun68k files as much as possible
- add temporary options _SUN2_ in std.sun2 until sun3 can share all
sun68k files (autoconf.c and isr.c are not yet)
- move sun68kvme declaration temporary as well from files.sun68k to files.sun2
- rename and move sun68k_find_prom_map() function to MD sources since it
can't be shared with sun3
- add bus tag members to struct confargs and initilize them where appropriate

XXX1: MD bus_dma(9) backends are not implemented (yet).
XXX2: more code (obio etc.) should be shared among sun3, sun3x and sun2.

branches: 1.30.20; 1.30.22;
merge ktrace-lwp.

branches: 1.29.2;
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: 1.28.2;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.27.8;
__KERNEL_RCSID()

branches: 1.26.2;
Use PAGE_SIZE rather than NBPG.

remove trailing \n in panic(). approved perry.

Don't use rmaps; use extent maps.

branches: 1.23.4;
replace pmap_enter() with pmap_kenter_pa() where appropriate.

Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

branches: 1.21.2;
- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

Use comments around the token after a #endif.

branches: 1.19.2;
Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative. It may be possible to
optimize these a little more.

branches: 1.18.2;
splimp() -> splvm()

Fix printf formats in panic messages.

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

remove/move more mach vm header files:

<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.

Update for pmap_enter() API change. No functional difference.

branches: 1.13.2; 1.13.4; 1.13.8;
Change the pmap_extract() interface to:
boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
This makes it possible for the pmap to map physical address 0.

branches: 1.12.4;
Changes for modified pmap_enter() API:
* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot. Also, DO NOT use
pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
access_type = 0. This should probably be revisited.

completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

First cut at UVM support. Compiles, but not tested yet.

Merge arch/sun3x into arch/sun3

branches: 1.8.4;
Change our DVMA map from the last 16MB to the last 1MB because that is
the only part that is visible to VME masters, and is adequate space.
This allows the "si" driver (on VME) to use DMA transfers.

When calling iommu_* functions, use IOMMU_VA_MASK.

Check bustype in dvma_kvtopa()

Corrected typo in comments.

Add dvma_malloc() for the ie driver.

branches: 1.3.4;
Added some more comments and disabled removal of DVMA alias mapping from
kernel space in dvma_mapout() as it may cause problems with the current
pmap_remove().

branches: 1.2.4;
Use <machine/machdep.h>

branches: 1.1.1;
Initial revision

Tab/whitespace cleanup.

branches: 1.8.34; 1.8.44; 1.8.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.52; 1.7.54; 1.7.56;
- change find_prom_map() to take paddr_t and return vaddr_t rather than
bus_space_handle_t since bus space handle without bus space tag looks weird
- replace old sun3 obio_find_mapping() with new common find_prom_map()
- add bus_space_vaddr(), from hp300

branches: 1.6.20; 1.6.22;
merge ktrace-lwp.

branches: 1.5.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.4.8;
__KERNEL_RCSID()

branches: 1.3.4; 1.3.20;
machine/fbio.h -> dev/sun/fbio.h

branches: 1.2.26; 1.2.28;
Merge arch/sun3x into arch/sun3

branches: 1.1.2;
file enable.c was initially added on branch gwr-3x3.

Tab/whitespace cleanup.

branches: 1.2.34; 1.2.44; 1.2.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.152; 1.1.154; 1.1.156;
Initial revision

convert to use genassym.cf & genassym.sh, as other ports do

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

Introduce a new process state distinct from SRUN called SONPROC
which indicates that the process is actually running on a
processor. Test against SONPROC as appropriate rather than
combinations of SRUN and curproc. Update all context switch code
to properly set SONPROC when the process becomes the current
process on the CPU.

Fix the problem that single-step tracing of a trap instruction
drops the system into kernel debugger.

branches: 1.21.2; 1.21.4; 1.21.6;
Const poison local printf prototype.

SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.18.8;
Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

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.

Merge arch/sun3x into arch/sun3

branches: 1.13.4;
Use MONEND instead of DVMA_SPACE_START in the "DDB convenience" symbols.

Make this generate the same output as kern/genassym.awk

Eliminate references to vmspace.vm_pmap
(also fix some comments).

Just M68030 is enough.

Forgot the quotes (slow down...)

Oops... need to define M68020 for copy.s

Adapt to changes in pmap.h

Add NBPG

branches: 1.5.2;
Put all the name/value pairs in an initialized array of structures
so that this can be compiled to assembly code and then translated
directly into assym.h by a simple awk program (genassym.awk).
This program can still be run the old way for verification.

Use <machine/machdep.h>

Remove PCB_MMUCRP, add VM_PMAP_MMUCRP and VM_PMAP_A_TMGR

Update for rename of pcb_mmuctx to pcb_mmucrp
Also reorder things a little.

branches: 1.1.1;
Initial revision

Remove redundant cache.h header; all of these values are already defined
in generic m68k code.

Switch the sun68k platforms over to the common m68k interrupt dispatch code.

Re-factor the 680x0 Function Code definitions into their own
separate file (as was done on the sun2/sun3 ports ages ago)
and switch everyone to the common header.

G/C

G/C LS{SLEEP,RUN,ONPROC}

LWP status manipulation was moved out of assembly long ago.

branches: 1.14.6;
Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.13.58; 1.13.60;
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?

enable usermode RAS for sun[23] also.

branches: 1.11.2; 1.11.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.9.4; 1.9.6; 1.9.10;
Remove <m68k/saframe.h> here as well, patterned after hp300.

branches: 1.8.16;
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: 1.7.10;
Adapt sun68k ports to yamt-idlelwp.
Tested on TME (sun2 and sun3) and 3/80 (sun3x).

branches: 1.6.30; 1.6.32; 1.6.38;
merge ktrace-lwp.

branches: 1.5.16;
sys__sigreturn14 -> compat_16_sys___sigreturn14

branches: 1.4.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.1.2; 1.1.6; 1.1.10;
convert to use genassym.cf & genassym.sh, as other ports do

Tab/whitespace cleanup.

branches: 1.15.34; 1.15.44; 1.15.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.14.40; 1.14.42; 1.14.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.13.4;
- change find_prom_map() to take paddr_t and return vaddr_t rather than
bus_space_handle_t since bus space handle without bus space tag looks weird
- replace old sun3 obio_find_mapping() with new common find_prom_map()
- add bus_space_vaddr(), from hp300

branches: 1.12.20; 1.12.22;
merge ktrace-lwp.

branches: 1.11.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.10.8;
__KERNEL_RCSID()

branches: 1.9.6; 1.9.22;
bcopy() -> memcpy(), bzero() -> memset()

branches: 1.8.2; 1.8.22;
Fix unused variable warning

Fix the IDPROM checksum. It should check only the first 16 bytes.
Also try to make the sun3 and sun3x versions more similar.

Merge arch/sun3x into arch/sun3

branches: 1.5.4;
Remove the autoconfig glue. This driver is mandatory,
and the match/attach functions did nothing anyway.

Use unsigned when doing copy/xor check.

Make idprom_init() figure out where the IDPROM resides.
Add autoconfig glue, which currently just shows the
address where the IDPROM was found.

Add machdep.h; use sunmon_abort() instead of mon_exit_to_mon().

branches: 1.1.1;
Initial revision

Remove unnecessary <sys/malloc.h>.

Tab/whitespace cleanup.

branches: 1.17.30; 1.17.40; 1.17.46;
Split softc/device_t, with misc cosmetic changes.

branches: 1.16.2; 1.16.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.15.74; 1.15.76; 1.15.78;
merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.13.8;
__KERNEL_RCSID()

branches: 1.12.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.9.2; 1.9.8;
don't abuse cf_unit.

branches: 1.8.26;
Merge arch/sun3x into arch/sun3

branches: 1.7.4;
No need to print the size (it's constant).

Update for config changes.

Use bus_mapin, and minor tweaks.

Use IOMMU_PAGE_SIZE instead of NBPG, since theoretically the IOMMU page size
is different than the CPU page size.

Make the device attach output look more like the SPARC iommu.

Convert meaningless '0' into a more human readable 'IOMMU_PDE_DT_INVALID'.

branches: 1.1.1;
Initial revision

Tab/whitespace cleanup.

branches: 1.8.34; 1.8.44; 1.8.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.74; 1.7.76; 1.7.78;
merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.5.50; 1.5.58;
Add: IOMMU_VA_MASK

Rewrote the comments about the operation of the I/O mapper to make them more
accurate and (hopefully) easier to understand.

branches: 1.3.4;
Add page size constant, since I/O mapper page size may differ from cpu page
size.

branches: 1.2.6;
Added conditional include of iommu kernel driver manipulation routines.
Fixed a few comments.

branches: 1.1.1;
Initial revision

Make sigcode.s and sunos_sigcode.s build as their own stand-alone files.

Make compat_13_sigreturn13.s and compat_16_sigreturn14.s build as their
own stand-alone files and G/C the now-empty sigreturn.s.

Build m68k/support.s on its own; don't include it from locore.s

G/C __HAVE_LEGACY_INTRCNT from the sun68k platforms.

Switch the sun68k platforms over to the common m68k interrupt dispatch code.

G/C unreferenced copies of _spl() and _splraise().

We only need one copy of getvbr() and setvbr().

Make getsr() an inline in <m68k/psl.h> and G/C all of the now-redudant
copies.

Remove getsp(); nothing uses it.

branches: 1.69.4;
s/paniced/panicked/ and s/borken/broken/ in comments.

Adjust the number of entries in the intrcnt array to match the number
of names in the intrnames list.

branches: 1.67.2;
Remove #undefs against INTERRUPT_SAVEREG and INTERRUPT_RESTOREREG.

They have been defined in <m68k/asm.h> for years.

branches: 1.66.12;
Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.65.28; 1.65.30;
avoid dup defs, use global macros

branches: 1.64.6; 1.64.10;
Merge m68881_save() and m68881_restore() (using most common mvme68k ones).
All functions are checked by my eyes, and all GENERIC kernels compile.

branches: 1.63.4;
Move spread getsfc() and getdfc() functions into common m68k/support.s.

Note:
- ENTRY_NOPROFILE() is okay since they are used only for debug printf
- they are declared to return int so no need to put a return value into %a0

branches: 1.62.4;
Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.61.2; 1.61.4;
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?

branches: 1.60.2;
s/cpu_fork/cpu_lwp_fork/ in comment

branches: 1.59.2;
Rename L_ADDR to L_PCB and amend some comments accordingly.

Kill proc0paddr. Use lwp0.l_addr instead.

branches: 1.57.20;
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: 1.56.6;
Sync with sun3/locore.s rev 1.88:
> Pass a frame pointer to trap() rather than the 'entire frame' trick. Gcc4
> was optimizing away modifications to the frame contents (it's not nice to
> trick gcc). Pass the pointer as the first argument to reduce the number
> of places that would be changed otherwise. Fixes the getcwd regression
> test on most m68k ports.
Fixes MMU fault panic in trap() on sun3x.

This should be pulled up to netbsd-4 too.

branches: 1.55.2; 1.55.4;
Adapt sun68k ports to yamt-idlelwp.
Tested on TME (sun2 and sun3) and 3/80 (sun3x).

branches: 1.54.24; 1.54.30; 1.54.32; 1.54.38; 1.54.40;
merge ktrace-lwp.

branches: 1.53.16;
Remove the local proc_trampoline definition from this file as well.

Move UCB-licensed code from 4-clause to 3-clause licence.

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

branches: 1.51.2;
Merge the nathanw_sa branch.

finish conversion to the common m68k cacheops:
add support for machine-specific flavors of the ops for off-chip caches.
many thanks to Izumi Tsutsui for his help with this.

merge the 12 copies of vm_machdep.c on the m68k platforms.
clean up some other stuff along the way, including:
- use m68k/cacheops.*, remove duplicates from cpu.h.
- centralize a few declarations in (all the copies of) cpu.h.
- define M68K_VAC on platforms which have a VAC.
- switch the sun platforms to the (now common) proc_trampoline().
- do the phys_map thang on the sun platforms too, no reason not to.

branches: 1.48.6;
ptest_addr() is prototyped (in pmap.c) to return a u_long not a pointer.
Therefore the return value should be in %d0, not %a0.

branches: 1.47.2;
add missing #include "opt_kgdb.h"

Update to reflect that unlike in m68k a.out environments, where the .align
directive is given a log2 argument, .align is given a linear argument in
m68k ELF environments.

branches: 1.45.2;
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.

split m68k SunOS and SVR4-specific sigcode.s code to sunos_sigcode.s
and svr4_sigcode.s respectively
adjust individual m68k port's locore.s to include new sigcode files if
appropriate

Fix typo in the previous revision. (s/LIdle/Lidle/)

Add a lock around the scheduler, and use it as necessary, including
in the non-MULTIPROCESSOR case (LOCKDEBUG requires it). Scheduler
lock is held upon entry to mi_switch() and cpu_switch(), and
cpu_switch() releases the lock before returning.

Largely from Bill Sommerfeld, with some minor bug fixes and
machine-dependent code hacking from me.

Add a comment on single-processor systems about p_cpu being initialized
by fork1().

Update for qs -> sched_qs change.
Kernel compiles again.

branches: 1.39.2;
First sweep at scheduler state cleanup. Collect MI scheduler
state into global and per-CPU scheduler state:

- Global state: sched_qs (run queues), sched_whichqs (bitmap
of non-empty run queues), sched_slpque (sleep queues).
NOTE: These may collectively move into a struct schedstate
at some point in the future.

- Per-CPU state, struct schedstate_percpu: spc_runtime
(time process on this CPU started running), spc_flags
(replaces struct proc's p_schedflags), and
spc_curpriority (usrpri of processes on this CPU).

- Every platform must now supply a struct cpu_info and
a curcpu() macro. Simplify existing cpu_info declarations
where appropriate.

- All references to per-CPU scheduler state now made through
curcpu(). NOTE: this will likely be adjusted in the future
after further changes to struct proc are made.

Tested on i386 and Alpha. Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.

Introduce a new process state distinct from SRUN called SONPROC
which indicates that the process is actually running on a
processor. Test against SONPROC as appropriate rather than
combinations of SRUN and curproc. Update all context switch code
to properly set SONPROC when the process becomes the current
process on the CPU.

Fix the problem that single-step tracing of a trap instruction
drops the system into kernel debugger.

branches: 1.36.2; 1.36.4; 1.36.6;
Make sure the branch target of the delay loop is aligned to a cache
half-line (8-byte) boundary. Inspired by a discussion w/ Scott Reynolds.

Include opt_compat_sunos.h

Add COMPAT_SVR4 for m68k.

branches: 1.33.2;
completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

sun3 part of fix for PR 6152

Changes to support fork_kthread():
- cpu_set_kpc() now takes void *arg third argument, passed to the
entry point.
- cpu_fork() allows parent to be non-curproc iff parent is proc0.
When forking non-curproc, assume its state has already been saved.
- Adjust various pieces of machine-dependent code to account of all of this.

Garbage collect trap #1 and trap #2 handlers; they're moved to
trap_subr.s

Pull in opt_compat_netbsd.h

Adjust for the new "reaper" kernel thread: do not free the vmspace and
u-area in machine-dependent code. Instead, call exit2() to schedule
the reaper to free them for us, once it is safe to do so (i.e. we are
no longer running on the dead proc's vmspace and stack).

First cut at UVM support. Compiles, but not tested yet.

Merge arch/sun3x into arch/sun3

branches: 1.25.4;
Separate pmap_activate() from _pmap_switch(), so the latter can remain
equivalent to what locore.s:cpu_switch does with in-line assembly when
PMAP_DEBUG is not defined. Also do splimp/splx in pmap_activate.

Use MONEND instead of DVMA_SPACE_START in the "DDB convenience" symbols.

Make pmap_activate() take a proc *.

MONSTART/monstart symbol

Add non-inline version of _splraise.

Eliminate references to vmspace.vm_pmap
(also fix some comments).

Wrap all label references with new macros in m68k/asm.h in preperation
for ELF switchover. (eventually)

Rename "Idle" to "_Idle" so clock.c can reference it.

Adjust for <m68k/m68k/trap_subr.s>

Use common m68k sigcode.

Use <m68k/m68k/proc_subr.s>

In-tree GNU ``as'' does not know of 'pmove <reg>,tt0' instruction. Changed
instances of this instruction to hardcoded opcode statements. Thanks to
jthorpe for pointing this out.

s/fpu_type/fputype/g

Use <m68k/m68k/support.s>

Sync with sun3 (Trap 1,2,15 handlers)

Add ptest_addr

Added the '@' symbols that GAS needs for address register indirect addressing
statements that are used when PMAP_DEBUG is undefined.

Reinstate call to pmap_activate() for now, because it is helpful
for debugging the pmap code. The in-line version of the same is
still here and will be used if PMAP_DEBUG is not defined.

Add a few more coments. (i.e. why init a6=0)

Sync with sun3.

branches: 1.5.2;
Remove an un-true comment.

Load the root pointer using VM_PMAP_MMUCRP
Also rename nodb_trap to _nodb_trap

Fix a comment (PCB_MMUCTX is a virtual address).

Adapt to rename of pcb_mmuctx to pcb_mmucrp, and corrected
prototype of loadcrp(), which kills some bogus type casts.

branches: 1.1.1;
Initial revision

Switch the sun68k platforms over to the common m68k vector table.

Fix various typos of "system" in comments. Mainly copypasto errors.

from vezhlys on freenode.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.40.28; 1.40.30;
Tab/whitespace cleanup.

branches: 1.39.2; 1.39.4;
Appease gcc -fno-common:
- initialize cn_tab in locore2.c:_bootstrap() for early printf calls
Tested on sun3 (3/160 on TME) and sun3x (real 3/80).

XXX: sun3 with >16MB RAM gets "panic: ubc_init: failed to map ubc_object"

branches: 1.38.12;
Cast a vaddr_t to void* before passing to memset, so that this builds again.

- Use uvm_lwp_setuarea() instead of directly setting address to lwp_t::l_addr.
- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places. Reduce sys/user.h inclusions.

Kill proc0paddr. Use lwp0.l_addr instead.

Use lwp_getpcb() on sparc{64} and sun2/3 MD code, clean from struct user usage.

Remove clause 3 and 4 from TNF licenses

branches: 1.33.40; 1.33.42; 1.33.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.32.4;
First attempt at bus_space(9) support for sun3 with common sun68k/bus.c:
- make sun3 port use common sun68k files as much as possible
- add temporary options _SUN2_ in std.sun2 until sun3 can share all
sun68k files (autoconf.c and isr.c are not yet)
- move sun68kvme declaration temporary as well from files.sun68k to files.sun2
- rename and move sun68k_find_prom_map() function to MD sources since it
can't be shared with sun3
- add bus tag members to struct confargs and initilize them where appropriate

XXX1: MD bus_dma(9) backends are not implemented (yet).
XXX2: more code (obio etc.) should be shared among sun3, sun3x and sun2.

branches: 1.31.20; 1.31.22;
merge ktrace-lwp.

branches: 1.30.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.29.8;
__KERNEL_RCSID()

branches: 1.28.2;
Merge the nathanw_sa branch.

G/c vestiges of old sun3-specific SYMTAB_SPACE support.

branches: 1.26.6; 1.26.14;
bcopy() -> memcpy(), bzero() -> memset()

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.24.4;
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.

Use macro in <m68k/m68k.h> for cputype and mmutype.

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

branches: 1.21.14;
defopt DDB.

Sync with the sun3 version.

Merge arch/sun3x into arch/sun3

branches: 1.18.4;
Move the call to cninit() up a level (easier to find).

branches: 1.17.4;
s/_round_page/m68k_round_page/

Remove call to leds_init (it is already in obio_init).

Add call to leds_init() after everything has started up ok.

Move the _verify_hardware() work into machdep.c:identifycpu().
Call obio_init() after _vm_init() so we can use peek_byte() to
probe the idprom. Be quiet in _save_symtab() when all is well.

No longer force boothowto=RB_SINGLE|RB_KDB
(Yes, it goes multi-user just fine! 8^)

s/sun3x_/_/ in sun3x_(round|trunc)_(page|seg) macros

Define "cold" over in autoconf.c

Force RB_SINGLE for now (in addition to RB_KDB).

Sync with sun3.

branches: 1.8.2;
Declare and set cputype and mmutype.

Kill sunmon.h; add sun "code names" (Hydra, Pegasus).

Use sunmon_abort() instead of mon_panic().

Move a bunch of stuff to sun3/sunmon.c where we can share it.

Do loadcrp(&mon_crp) only when returning permanently to the monitor.

Adapt to rename of pcb_mmuctx to pcb_mmucrp, and corrected
prototype of loadcrp(), which kills some bogus type casts.

Before dropping into the PROM monitor, restore its CPU Root Pointer (CRP),
and restore our own CRP if we resume. Make sure the string passed to
mon_reboot() is in our data segment where the PROM can see it.

branches: 1.1.1;
Initial revision

s/congiguous/contiguous/ in comment.

branches: 1.140.2;
Remove unnecessary <sys/malloc.h>.

uvm_availmem(): give it a boolean argument to specify whether a recent
cached value will do, or if the very latest total must be fetched. It can
be called thousands of times a second and fetching the totals impacts not
only the calling LWP but other CPUs doing unrelated activity in the VM
system.

Rename uvm_free() -> uvm_availmem().

uvmexp.free -> uvm_free()

Fix typo in comment(s/similiar/similar/).

branches: 1.135.10; 1.135.20; 1.135.30;
use cpu_{g,s}etmodel

Tab/whitespace cleanup.

branches: 1.133.2; 1.133.4;
Remove declartions of physmem

Remove safepri and use IPL_SAFEPRI instead. This may be defined in a MD
header file (if not, a value of 0 is assmued).

implement bdev_size(9) wrapper around d_psize() routine, so we can take
the device lock in relevant places. avoid doing so while actually dumping.

tested i386 crash dumps still work, and that all touched files compile.

fixes PR#45705.

branches: 1.130.2; 1.130.6;
Fix merge botch. KERNBASE macro was split into KERNBASE3 and KERNBASE3X
for kernel, and was replaced with kernbase constant for possible reference
of USRSTACK in module(7).

Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.128.2;
- merge and move pasted m68k MD setreg() functions into m68k/m68k_machdep.c
- move m68881_save() and m68881_restore() declarations into <m68k/m68k.h>

Briefly tested and no obvious breakage on atari, sun3, and x68k.

Refactor ps_strings access. Based on PK_32, write either the normal
version or the 32bit compat layout in execve1. Introduce a new function
copyin_psstrings for reading it back from userland and converting it to
the native layout. Refactor procfs to share most of the code with the
kern.proc_args sysctl handler.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.125.2;
Explicitly include <machine/pcb.h> for struct pcb.

branches: 1.124.2;
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?

branches: 1.123.2;
Remove separate mb_map. The nmbclusters is computed at boot time based
on the amount of physical memory and limited by NMBCLUSTERS if present.
Architectures without direct mapping also limit it based on the kmem_map
size, which is used as backing store. On i386 and ARM, the maximum KVA
used for mbuf clusters is limited to 64MB by default.

The old default limits and limits based on GATEWAY have been removed.
key_registered_sb_max is hard-wired to a value derived from 2048
clusters.

branches: 1.122.2;
Change u_long to vaddr_t/vsize_t in exec code where appropriate (mostly
involves setregs and vmcmds). Should result in no code differences.

Use lwp_getpcb() on sparc{64} and sun2/3 MD code, clean from struct user usage.

Add a zero argument to pmap_kenter_pa() invocations.
According to cegger@ this is the right thing to do for the moment.

Include <sys/exec_aout.h> explicitly instead of relying on <sys/exec.h> to
do it for us.

Use "defopt MODULAR" in sys/conf/files, and #include "opt_modular.h"
in all kernel sources that use the MODULAR option.
Proposed in tech-kern on 18 Jan 2009.

branches: 1.117.2;
Re-adapt to the changed return types for major() and minor().

Use PRIu64 to print 64 bit dev_t.

As discussed on tech-kern: mutex_init is too heavyweight for early bootstrap
phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.

dumpsys: don't spew numbers into the log.

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

It is not appropriate to call pmf_system_shutdown(9) from
doshutdownhooks(9): shutdown hooks registered by shutdownhook_establish(9)
expect to be called with interrupts disabled, but shutdown hooks
registered with pmf_device_register1(9) expect to be called with
interrupts enabled. So I have made two changes:

1 Do not call pmf_system_shutdown() from doshutdownhooks(). Instead,
change every call to doshutdownhooks() to a call to doshutdownhooks()
followed by a call to pmf_system_shutdown(). No functional change
is intended by this change.

2 Make i386 re-enable interrupts briefly while it calls
pmf_system_shutdown(). I leave it to others either to fix the
other ports, or to factor out some MI shutdown code, as joerg@
suggests, and fix that. Note that a functional change *is* intended
by this change.

I hope that this patch will stop us from flip-flopping between
calling doshutdownhooks() and pmf_system_shutdown() sometimes with
and sometimes without interrupts enabled.

branches: 1.111.2; 1.111.4; 1.111.6;
Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.110.16; 1.110.20; 1.110.22; 1.110.24;
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: 1.109.10;
- Don't refer fputype before FPU is probed.
- Call m68k_make_fpu_idle_frame() from initfpu().

branches: 1.108.2; 1.108.4; 1.108.10;
Use (char *) on pointer arith.

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

TRUE -> true, FALSE -> false

branches: 1.105.2;
Merge newlock2 to head.

in cpu_dumpconf(), don't panic() if we can't bdevsw_lookup() the
dumpdev. this occurs when we try to set the dumpdev to a device
with no driver loaded. this fixes PR#34872.

in sys_swapctl, if bdevsw_lookup() fails, set dumpdev = NODEV
before calling cpu_dumpconf(). (this also fixes PR#34872.)

XXX: cpu_dumpconf() should probably be changed to take a dumpdev
XXX: and return an error in such cases, but that is a much more
XXX: intrusive change.

XXX2: this is only run-tested on sparc64 and compile tested on a
XXX2: couple of platforms.

Make sun3 use common sun68k/sun68k/isr.c, sun68k/include/cpu.h and
sun68k/include/intr.h.

This also means now sun3 has GENERIC_SOFT_INTERRUPTS support,
so also adapt fd.c and zs.c to MI softintr(9) APIs.

(I'll also update related sources in yamt-splraiseipl branch later)

branches: 1.102.20; 1.102.22;
merge ktrace-lwp.

branches: 1.101.2;
Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

Constify.

Move the MI printing of `copyright' to the MD cpu_startup() code
where the printing of `version' is already performed.
This has the benefit of allowing the copyright to be available
via dmesg(8) on platforms which need the `msgbuf' to be setup
in cpu_startup() before printed output is remembered.

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: 1.97.2;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.96.8;
Tango on sysctl_createv() and flags. The flags have all been renamed,
and sysctl_createv() now uses more arguments.

Uppercase CPU, plural is CPUs.

Replace the traditional buffer memory management -- based on fixed per buffer
virtual memory reservation and a private pool of memory pages -- by a scheme
based on memory pools.

This allows better utilization of memory because buffers can now be allocated
with a granularity finer than the system's native page size (useful for
filesystems with e.g. 1k or 2k fragment sizes). It also avoids fragmentation
of virtual to physical memory mappings (due to the former fixed virtual
address reservation) resulting in better utilization of MMU resources on some
platforms. Finally, the scheme is more flexible by allowing run-time decisions
on the amount of memory to be used for buffers.

On the other hand, the effectiveness of the LRU queue for buffer recycling
may be somewhat reduced compared to the traditional method since, due to the
nature of the pool based memory allocation, the actual least recently used
buffer may release its memory to a pool different from the one needed by a
newly allocated buffer. However, this effect will kick in only if the
system is under memory pressure.

Dynamic sysctl.

Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(),
vfs_sysctl(), etc, routines, along with sysctl_int() et al. Now all
nodes are registered with the tree, and nodes can be added (or
removed) easily, and I/O to and from the tree is handled generically.

Since the nodes are registered with the tree, the mapping from name to
number (and back again) can now be discovered, instead of having to be
hard coded. Adding new nodes to the tree is likewise much simpler --
the new infrastructure handles almost all the work for simple types,
and just about anything else can be done with a small helper function.

All existing nodes are where they were before (numerically speaking),
so all existing consumers of sysctl information should notice no
difference.

PS - I'm sorry, but there's a distinct lack of documentation at the
moment. I'm working on sysctl(3/8/9) right now, and I promise to
watch out for buses.

Fix a compiler warning.

Move UCB-licensed code from 4-clause to 3-clause licence.

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

__KERNEL_RCSID()

branches: 1.89.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Call ksyms_init() instead of ddb_init() in case of
NKSYMS || defined(DDB) || defined(LKM)

Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

merge the 12 copies of vm_machdep.c on the m68k platforms.
clean up some other stuff along the way, including:
- use m68k/cacheops.*, remove duplicates from cpu.h.
- centralize a few declarations in (all the copies of) cpu.h.
- define M68K_VAC on platforms which have a VAC.
- switch the sun platforms to the (now common) proc_trampoline().
- do the phys_map thang on the sun platforms too, no reason not to.

Don't include <sys/map.h>.

Do not include <sys/clist.h>, it's not used in NetBSD at all.

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.

Make nbuf, nswbuf, and bufpages unsigned. Make all operations on these
variables unsigned, and update places where their values are printed.

add missing union sun3sir sun3sir; (hi gimpy!)

branches: 1.78.4;
kill remaining PS_STRINGS instances.

Change type of dumpmag to u_int32_t since it is actually
a 32bit unsigned magic number.
As per discussion on tech-kern, and fixes port-sparc64/11949.

branches: 1.76.4;
replace pmap_enter() with pmap_kenter_pa() where appropriate.

Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

branches: 1.74.2;
bcopy() -> memcpy(), bzero() -> memset()

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

Use comments around the token after a #endif.

branches: 1.71.2;
Make sure to write out the dump header into an independent block
on the dump device on sun3x. (sync with sun3)
Now savecore(8) can find core dump in dumpdev properly.

XXX "target kcore /dev/mem" on gdb does not work yet.

replace vm_map{,_entry}_t with struct vm_map{,_entry} *.

add missing #include "opt_kgdb.h"

remove check for too-small MSGBUFOFF now that the reason for it is gone.

remove a useless call to uvm_map_protect(). the kernel text is already
mapped read-only in pmap_bootstrap() and the comment which tried to
explain why this might be needed anyway didn't make any sense.

make sun3x work again after the recent change to the m68k cpu_kcore_hdr:
allocate a page for dumps like the sun3 does rather than using part of
the msgbuf page. this also lets the msgbuf use the full msgbuf page.

Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative. It may be possible to
optimize these a little more.

eliminate the KERN_* error codes in favor of the traditional E* codes.
the mapping is:

KERN_SUCCESS 0
KERN_INVALID_ADDRESS EFAULT
KERN_PROTECTION_FAILURE EACCES
KERN_NO_SPACE ENOMEM
KERN_INVALID_ARGUMENT EINVAL
KERN_FAILURE various, mostly turn into KASSERTs
KERN_RESOURCE_SHORTAGE ENOMEM
KERN_NOT_RECEIVER <unused>
KERN_NO_ACCESS <unused>
KERN_PAGES_LOCKED <unused>

branches: 1.63.2;
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.

Sync with sun3/machdep.c:

> Require the machine-dependant DDB commands to be in db_machine_command_table[]
> and link it directly to db_command_table[] so that it's not necessary
> to do this at runtime. Make db_machine_command_table[] const on all ports.
> g/c now unneded stuff, like db_machine_commands_install(), db_machine_init()
>
> Patch written by enami.

On sun3x, cpu_reboot() calls sunmon_abort() for PROM bug work-around,
but sunmon_abort() does not restore mon_crp so it causes problems.
Instead, call romVectorPtr->abortEntry (via trap14) from sunmon_halt()
and call it from cpu_reboot().

Now PROM boot command works properly even after halt on my 3/80.

Add an align argument to uvm_map() and some callers of that
routine. Works similarly fto pmap_prefer(), but allows callers
to specify a minimum power-of-two alignment of the region.
How we ever got along without this for so long is beyond me.

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

remove/move more mach vm header files:

<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.

branches: 1.57.2;
Do not clear msgbufenabled in dumpsys(). Dump messages will now go to
the message buffer. This can be invaluable in debugging if the dump
fails (assuming a persistant message buffer)

branches: 1.56.2;
First sweep at scheduler state cleanup. Collect MI scheduler
state into global and per-CPU scheduler state:

- Global state: sched_qs (run queues), sched_whichqs (bitmap
of non-empty run queues), sched_slpque (sleep queues).
NOTE: These may collectively move into a struct schedstate
at some point in the future.

- Per-CPU state, struct schedstate_percpu: spc_runtime
(time process on this CPU started running), spc_flags
(replaces struct proc's p_schedflags), and
spc_curpriority (usrpri of processes on this CPU).

- Every platform must now supply a struct cpu_info and
a curcpu() macro. Simplify existing cpu_info declarations
where appropriate.

- All references to per-CPU scheduler state now made through
curcpu(). NOTE: this will likely be adjusted in the future
after further changes to struct proc are made.

Tested on i386 and Alpha. Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.

Move callout initialization to a single location; no need to duplicate
that code all over the place.

CL* discarding.

Update for pmap_enter() API change. No functional difference.

branches: 1.52.2; 1.52.4; 1.52.8;
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.

Change the vm_map's "entries_pageable" member to a r/o flags member, which
has PAGEABLE and INTRSAFE flags. PAGEABLE now really means "pageable",
not "allocate vm_map_entry's from non-static pool", so update all map
creations to reflect that. INTRSAFE maps are maps that are used in
interrupt context (e.g. kmem_map, mb_map), and thus use the static
map entry pool (XXX as does kernel_map, for now). This will eventually
change now these maps are locked, as well.

* convert to using MI allocsys(). most ports were using an MD allocsys(),
although a couple still used the old pre-4.4-lite (?) mechanism.
* use format_bytes() to format the various printf()s that print out memory sizes

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.

g/c REAL_CLISTS.

add a `flags' argument to uvm_pagealloc_strat().
define a flag UVM_PGA_USERESERVE to allow non-kernel object
allocations to use pages from the reserve.
use the new flag for allocations in pmap modules.

branches: 1.46.2;
Use the string kernel_arch to determine "sun3" vs "sun3x"
and leave the machine string as it was (make uses it).

Don't call configure() from cpu_startup().

Arrange for "sysctl hw.machine" to show sun3x.
(Needed by the miniroot, etc.)

Changes for modified pmap_enter() API:
* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot. Also, DO NOT use
pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
access_type = 0. This should probably be revisited.

completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

Need to include DDB headers only if DDB is defined.

defopt BUFCACHE and BUFPAGES.

Garbage-collect `mbutl'.

Printf format warning cleanup: the type of the result of a shift operation is
that of the promoted left operand.

Need <sys/device.h> to bring configure() declaration in scope.

Defopt SYSVMSG, SYSVSEM and SYSVSHM.

defopt DDB.

First cut at UVM support. Compiles, but not tested yet.

Make this compile...

Change ddb_init() for a.out to provision for kernels which are not booted by
the current 'bootblock' method, like the Shark, which preloads and preformats
the symbol table right in the boot code.

Sync with sun3/machdep.c (should factor out common stuff...)
> Do the "early breakpoint" (if booted with "-d") even if we
> have only the PROM to handle it, so one can patch things.

Disable the message buffer during crash dumps by clearing msgbufenabled,
not msgbufmapped.

Merge arch/sun3x into arch/sun3

When dumping, print out the device number as major,minor.

branches: 1.27.2;
Standardize COMPAT_SUNOS -- remove all references to
sunos_exec_aout_makecmds() in machdep.c for various architectures and put
it in exec_conf.c like the other emulations; rename exec.h to
sunos_exec.h.

Change order of include files. See PR #4532.

branches: 1.25.2;
Do the cpu_kcore_hdr initialization a little differently.
(also fix - was not setting pg_frame, pg_valid)

Make cpu_reboot un-blank the screen (cnpollc(1)).
Validate space in page zero for the kcore header.

Make msgbuf stay in page zero

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.

Set the status word as well, and remove a bogus comment.

Always initialize all registers in setregs().

Fix execve(2) and *setregs() interfaces so emulations can set registers in a
more correct way. (See tech-kern.)

branches: 1.18.4;
bring mrg-vm-swap2 onto mainilne.

Initialize machine from MACHINE.

The Hydra is 20 MHz and the Pegasus is 33 MHz.

branches: 1.15.2;
Moved the actual model identification work into identifycpu(),
which used to be in _startup.c:_verify_hardware().
Use sunmon_abort() in cpu_reboot() for now...

Adjust for new kcore.h

Add a comment.

Don't allocate mclrefcnt[]; it's dead and gone.

Renames: /dumpconf/cpu_dumpconf/, /boot/cpu_reboot/

First cut at crashdump support.

s/fpu_type/fputype/g

Moved straytrap() to trap.c (and minor cleanup)

Moved sendsig(), sys_sigreturn() to sun3/sig_machdep.c
Moved regdump() and friends to sun3/regdump.c

Avoid dereferencing null curproc in dumpmem().

branches: 1.5.2;
Sync with sun3.

branches: 1.4.2;
Kill sunmon.h

Use <machine/machdep.h> and <sun3/sun3/sunmon.h>

Make sure the string passed to mon_reboot() is in our data segment
where the PROM can see it. (Bug found by Jeremy -- Thanks!)

Initial revision

Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.35.2;
Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

branches: 1.34.2; 1.34.4;
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?

branches: 1.33.64; 1.33.66;
Use (char *) casts.

Umm, vmmap on sun3/sun3x is vaddr_t, not (char *)...

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

branches: 1.31.26;
merge ktrace-lwp.

branches: 1.30.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.29.8;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

__KERNEL_RCSID()

branches: 1.27.2;
Use PAGE_SIZE rather than NBPG.

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

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: 1.24.8;
s/DEL_ZERO/DEV_ZERO/

- Use DEV_ constants, instead of documenting the numbers!
- Delete cdev_decl(mm); where appropriate, and other hand-crufting [hi powerpc!]

branches: 1.22.4;
Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

branches: 1.21.2;
bcopy() -> memcpy(), bzero() -> memset()

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.19.2;
Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative. It may be possible to
optimize these a little more.

branches: 1.18.2;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

remove/move more mach vm header files:

<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.15.4;
CL* discarding.

Update for pmap_enter() API change. No functional difference.

branches: 1.13.8; 1.13.10; 1.13.14;
Oops; vm_offset_t -> vaddr_t.

Changes for modified pmap_enter() API:
* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot. Also, DO NOT use
pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
access_type = 0. This should probably be revisited.

completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

First cut at UVM support. Compiles, but not tested yet.

Merge arch/sun3x into arch/sun3

branches: 1.7.4;
Add /dev/leds support.

Change continue to break in a few places (as suggested by mycroft).

Sync with the sun3 version.

Allow access to the PROM via /dev/kmem (like the sparc port)

branches: 1.3.4;
zeropage -> devzeropage, and make it static.

Use <machine/machdep.h>

branches: 1.1.1;
Initial revision

Remove an obsolete file. (superseded by MI mk48txx(4))

branches: 1.4.30; 1.4.32; 1.4.38;
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: 1.2.50;
Provide a struct representing only the clock.

branches: 1.1.1;
Initial revision

Tab/whitespace cleanup.

branches: 1.2.2; 1.2.4; 1.2.14; 1.2.18;
Welcome to 5.99.53! Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

branches: 1.1.2;
file mm_md.c was initially added on branch rmind-uvmplock.

Merge thorpej-cfargs2.

branches: 1.35.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.34.44;
Tab/whitespace cleanup.

branches: 1.33.2;
struct device * -> device_t, struct cfdata * -> cfdata_t
use device_xname() (from chs@)

branches: 1.32.30; 1.32.40;
Split softc/device_t, with misc cosmetic changes.

branches: 1.31.2; 1.31.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.30.14; 1.30.16; 1.30.18;
- use __arraycount()
- some KNF
- use __func__ to print function names

branches: 1.29.6; 1.29.22; 1.29.24; 1.29.30;
Prepare bus_dma(9) structures for sun3x obio devices.

- change find_prom_map() to take paddr_t and return vaddr_t rather than
bus_space_handle_t since bus space handle without bus space tag looks weird
- replace old sun3 obio_find_mapping() with new common find_prom_map()
- add bus_space_vaddr(), from hp300

First attempt at bus_space(9) support for sun3 with common sun68k/bus.c:
- make sun3 port use common sun68k files as much as possible
- add temporary options _SUN2_ in std.sun2 until sun3 can share all
sun68k files (autoconf.c and isr.c are not yet)
- move sun68kvme declaration temporary as well from files.sun68k to files.sun2
- rename and move sun68k_find_prom_map() function to MD sources since it
can't be shared with sun3
- add bus tag members to struct confargs and initilize them where appropriate

XXX1: MD bus_dma(9) backends are not implemented (yet).
XXX2: more code (obio etc.) should be shared among sun3, sun3x and sun2.

branches: 1.26.20; 1.26.22;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.24.2;
convert remaining autoconf bus "submatch" functions to use the new
signature (passing locators), and remove some which obviously don't
serve any purpose
(untested, sorry)

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.22.8;
__KERNEL_RCSID()

branches: 1.21.2;
Use PAGE_SIZE rather than NBPG.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.14.6;
obio_find_mapping() takes PA. (missed in the previous commit)

- vm_offset_t -> [pv]addr_t
- vm_size_t -> vsize_t
- remove register prefixes

branches: 1.12.4;
Fix typo in comment.

branches: 1.11.2; 1.11.8;
Add the address of the DMA gate array (used by the esp driver).

Improve some diagnostics.

Merge arch/sun3x into arch/sun3

branches: 1.8.4;
Update for config changes.

Move the call to cninit() up a level (easier to find).

branches: 1.6.4;
Add a comment about obio_mapin().

Change the OBIO address probe order a little, to allow determination of
which kind of idprom and clock we have (3/80 vs 3/470 differences).
Fix a bug where obio_submatch() failed to copy some locators.
Rename obio_alloc to obio_mapin. Add lots of comments.

Add OBIO_EMULEX_SCSI, and some comments about attach order.

branches: 1.3.4;
Kill sunmon.h

Use sunmon_abort() instead of mon_panic().

branches: 1.1.1;
Initial revision

Remove clause 3 and 4 from TNF licenses

branches: 1.6.2; 1.6.144; 1.6.146; 1.6.148;
Add the address of the DMA gate array (used by the esp driver).

Merge arch/sun3x into arch/sun3