Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

branches: 1.25.36;
Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.24.16; 1.24.18;
fenv for m68k

branches: 1.23.12; 1.23.30;
Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

Merge newlock2 to head.

branches: 1.21.4;
don't install <machine/db_machdep.h>, this is kernel only

branches: 1.20.4; 1.20.8;
merge ktrace-lwp.

branches: 1.19.12;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.

branches: 1.18.2;
Merge the nathanw_sa branch.

Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more.

Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

branches: 1.15.8;
No point in installing svr4_machdep.h.

branches: 1.14.2; 1.14.8;
Cosmetical oversight.

Add definitions of C99 integer format conversion macros.
XXX Fastest minimum-width integer types haven't been decided upon yet.

Add definitions of C99 specified-width integer type limits.
XXX Fastest minimum-width integer types haven't been decided upon yet.

Add definitions of C99 integer constant macros.
Tidy Makefiles up a little.

Add definitions of C99 minimum-width and greatest-width integer types.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.9.2;
Add <machine/int_types.h>, which provides namespace-pure definitions
of exact-width integer types.

Require that each each MACHINE/MACHINE_ARCH supply a lock.h. This file
contains the values __SIMPLELOCK_LOCKED and __SIMPLELOCK_UNLOCKED, which
replace the old SIMPLELOCK_LOCKED and SIMPLELOCK_UNLOCKED. These files
are also required to supply inline functions __cpu_simple_lock(),
__cpu_simple_lock_try(), and __cpu_simple_unlock() if locking is to be
supported on that platform (i.e. if MULTIPROCESSOR is defined in the
_KERNEL case). Change these functions to take an int * (&alp->lock_data)
rather than the struct simplelock * itself.

These changes make it possible for userland to use the locking primitives
by including <machine/lock.h>.

Install "machineendian_machdep.h".

C99: Define a NAN macro in <math.h> which evaulates to a constant expression of
a single-precision quiet NaN; only to be defined on platforms that do support
this value.

branches: 1.5.2;
Add COMPAT_SVR4 for m68k.

branches: 1.4.4;
Pullin m68k/ieee.h.

branches: 1.3.2;
Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Add elf_machdep.h to the INCS list.

Rework the way kernel include files are installed. In the new method,
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.

Merge wscons work onto the main development branch.

branches: 1.12.6; 1.12.14;
New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Patch from Takashi NAKAMURA <QZM00427@nifty.ne.jp> to support the
Contour 3-button mouse from the Contour Design Corp.
It looks like a Microspeed mouse.

Recognize Apple Standard Keyboard (ISO layout)

branches: 1.9.2;
port-mac68k/4158: current kernel doesn't recognize some adb devices.
Patch applied. Thanks to SUNAGAWA Keiki for the change-request.

o Fixed definition of PowerBook extended keyboard from previous commit
o Added recognition of some additional ADB device types

Add recognition of more keyboard types (including ISO layouts)

branches: 1.6.4;
Add support for Mouse Systems A3 mouse. From Colin Wood.

MicroSpeed mouse support from Taras Ivanenko <ivanenko@ctpa03.mit.edu>.
Also some updates to actually used #defined constants instead of numeric
constants.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Mac ROM Glue changes from grantham@tenon.com.

new RCS ID format.

branches: 1.1.2;
Moved adbsys.h grfioctl.h and keyboard.h to include to make desktop
and X compile more cleanly.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

repoint at shared aout_machdep.h, not exec.h

Use <m68k/exec.h>.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

Move MID_MACHINE to param.h from exec.h and get rid of bogus includes.

Added struct relocation_info_mac68k. Copied from hp300.

Update MACHINE to mac68k in param.h.
Update MACHINE_MID to MID_M68K -- untested.
Add __LDPGSZ as 8192 -- untested.

Added signal.h for -current. The rest is formatting changes.

Put definition of __LDPGSZ and `struct relocation_info' where they belong:
in <machine/exec.h>.

branches: 1.1.1;
Initial revision

new RCS ID format.

stub

dumpconf(void) long doesn't exist, remove the prototype

PR kern/39714 by Henning Petersen

branches: 1.12.88; 1.12.108;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.11.4;
Add Timecounter support for mac68k, using the otherwise idle second
timer of VIA1. Passes regression/sys/kern/time regression test.

While we are here, GC leftover prototypes from MI todr integration,
and clean up clockreg.h in the light of "Guide to the Macintosh
Hardware" information.

(Reviewed and okayed by Martin Husemann)

branches: 1.10.20; 1.10.22;
merge ktrace-lwp.

branches: 1.9.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.8.10;
Use m68k/m68k/cacheops.[ch]
Use m68k/m68k/bus_dma.c
- Add mainbus_attach_args with bus_space_tag_t and bus_dma_tag_t.
- Use passed-in tags for nubus scan.

branches: 1.7.24; 1.7.28;
vm_offset_t -> {paddr_t, vaddr_t}

configure() prototype is in <sys/device.h>

Revamp mainbus and obio autoconfiguration, with some direction (and the
indirect bus code framework) from Jason Thorpe. This allows us to dump
bus_scan() and bus_print(), and move bus_peek() and bus_mapin() to the
NuBus code (since they'll eventually go away, anyway).

Convert all foo_match() functions to use a `struct cfdata *' for their
second argument. The NuBus autoconfig code had to be reorganized as a
result of this, and looks much more like a directly-attached bus now.
These changes eliminate __BROKEN_INDIRECT_CONFIG.

Update prototypes to match Chris' cfprint_t change. Also, update comments
in autoconf.h to reflect the mainbus.c split.

Fixup a few prototypes and put 'em in their place.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Include <sys/bswap.h> for function prototypes. i386, pc532 and vax
still include <machine/byte_swap.h> and define macros for some of
the bswap*() functions.

branches: 1.1.2;
Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Remove cargo-culted '#if 0' code that was designed to produce a
compile-time error if any of the bus_space_*_8 functions was used,
but was documented that it produces a link-time error.

branches: 1.29.4;
s/impliment/implement/ in comment.

Provide PRIxBUSADDR, PRIxBUSSIZE, PRIuBUSSIZE, and PRIxBSH for all arches
to follow arm and (generic) mips.

Reviewed by christos.

PR port-mac68k/24883

Style-only changes in preparation to import AV DMA code:

- G/C unused from esp_softc
- clean up headers:
- prefer <sys/bus.h> over <machine/bus.h>
- G/C unused
- sort
- staticify private functions and variables
- stop using inline qualifier for functions called via function pointers
- use C99 initializer
- provide bus_space_vaddr(9) and use it, instead of using member of
bus_handle_t directly
- use uint*_t:
- u_char --> uint8_t
- u_int*_t --> uint*_t
- use proper names from ncr53c9xreg.h instead of magic numbers
- and some KNF, and etc.

No functional changes intended.

branches: 1.26.88;
Remove clause 3 and 4 from TNF licenses

branches: 1.25.54; 1.25.56; 1.25.58;
Apply patch in PR port-mac68k/33636 from Dave Huang (with wrapping long lines).
i.e. args in macro should be wrapped with parentheses.

branches: 1.24.2; 1.24.12; 1.24.14;
Change "inline" back to "__inline" in .h files -- C99 is still too
new, and some apps compile things in C89 mode. C89 keywords stay.

As per core@.

branches: 1.23.2; 1.23.4; 1.23.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.21.8; 1.21.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.20.10; 1.20.16;
Use m68k/m68k/cacheops.[ch]
Use m68k/m68k/bus_dma.c
- Add mainbus_attach_args with bus_space_tag_t and bus_dma_tag_t.
- Use passed-in tags for nubus scan.

Constify bus_space_write_multi_N() and bus_space_write_region_N().
Addresses PR port-mac68k/16233.

branches: 1.18.4;
Define __BUS_SPACE_HAS_STREAM_METHODS since the functions are there. Noted
on tech-kern & port-mac68k by "John Ruschmeyer" <jruschme@mac.com>.

branches: 1.17.2; 1.17.4;
Add bus_space_*_stream_N functions.

Add a DIAGNOSTIC panic if (count-using) bus_space macros are called with
a count of zero. Some drivers do this accidentally and some bus_space
implementations will fail if count is passed as zero (they are set up in
a do-{}-while structure).

Make sure that bus_space read/write functions that take a count will not be
called if count is zero. The smc91cxx driver, for example, may try to call
bus_space_write_multi_2() with a count of 0.

Add byte-swap and stride options to bus_space. Allocate as normal, then
call mac68k_bus_space_handle_swapped() or mac68k_bus_space_handle_set_stride().
Stride is untested. Swapped code works for SMC ethernet.

branches: 1.13.4;
define a "BUS_SPACE_MAP_PREFETCHABLE" flag which basically means that
device accesses are idempotent (but should not be cached by the CPU)

branches: 1.12.8;
Add a macro to check for sufficient pointer alignment in bus.h context,
"BUS_SPACE_ALIGNED_POINTER()".
Equal to the param.h "ALIGNED_POINTER()" normally, but obeys additional
requirements of the bus_space_xxx_n() macros. (BUS_SPACE_DEBUG)

branches: 1.11.2;
Fix PR port-mac68k/6665 from Paul Goyette with some minor mods.
Cast values is bus_space macros to the appropriate types so we end up
with valid assembly.

Remove semicolons from the end of bus_space_*_multi_*(). From Ken Nakata
in PR 5965.

Conform to spec, and make bus_space_copy() handle overlapping copies.
From Jason Thorpe.

Remove advertising clause.

Copyright assigned to The NetBSD Foundation.

branches: 1.6.4;
The bus space tag really isn't used; stop the compiler from complaining.

Remove niggles that made it into the copyright, and correct the
license terms (added Jason Thorpe).

Implement bus_space_set_multi_N(), bus_space_set_region_N(), and
bus_space_copy_N(). Bus space support is now complete.

Add prototypes for bus_space_alloc() and bus_space_free()

Initialize and use extent manager for bus space mapping functions.
Tweak bus_space_{tag,handle}_t types slightly to facilitate this.

branches: 1.1.2;
Implement basic bus space access macros/functions.

Note: we currently do not use the extent manager.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

This file, which will be included by <sys/cdefs.h>, will contain macros
such as __warn_references() and __weak_reference() which are actually
machine dependant. This will make it easier for ports that are being
bootstraped with ELF and ECOFF based toolchains.

This change also introduces a new macro, _C_LABEL(x). _C_LABEL expands
its argument, an identifier, to a character string of the identifier
name as it is represented in an object file.

For most ports, _C_LABEL(x) will expand to "_x", for ELF based ports
_C_LABEL(x) will expand to "x".

Fix up the mac68k interrupt handlers to work with the new style common
clockframe layout and remove the CLOCK_FORMAT0 work-around. As a nice
side-effect, this also eliminates the super-sketchy stack unwinding used
by rtclock_intr to get at the interrupt stack frame.

Use proper clockframe size for those platforms that require it.

XXX This is a tempory measure, better to fix clock interrupts to take the
common clockframe size.

OK thorpej@.

Largely unify the <machine/cpu.h> headers on the m68k platforms.

Make the M68K_MMU_* defines real kernel options, available in opt_m68k_arch.h.
For 68030, 68040, and 68060, infer M68K_MMU_MOTOROLA. For 68010 and 68020, it
must be an explicit option (set in std.${MACHINE} or, in the case of hp300,
inferred from the specific model option).

Remove duplicated / slightly-tweaked loadustp() (load user segment table)
routines from all of the m68k ports using the shared pmap. Instead, in
pmap_init(), set up a function pointer to the appropriate mmu_load_urp*()
function in mmu_subr.s.

cpu_need_resched():

- Remove all code that should be MI, leaving the bare minimum under arch/.
- Make the required actions very explicit.
- Pass in LWP pointer for convenience.
- When a trap is required on another CPU, have the IPI set it locally.
- Expunge cpu_did_resched().

Refactor the 68040 writeback() from each m68k port's trap handler into a
shared copy: m68040_writeback(). It is essentially a copy of the Atari
version, with some minor cosmetic tweaks and one small performance optimization
from the mvme68k port.

Tested by rjs@ on a Quadra 950. (Thanks!)

- Cleanup for dynamic sysctl:
- Remove unused *_NAMES macros for sysctl.
- Remove unused *_MAXID for sysctls.
- Move CTL_MACHDEP sysctl definitions for m68k into m68k/include/cpu.h and
use them on all m68k machines.

branches: 1.99.14; 1.99.16;
Fix typo "one the" and architecture where appropriate.

branches: 1.98.6; 1.98.10;
make cpu_need_resched() macros consistent; __USE flags

branches: 1.97.6; 1.97.10;
Always include <m68k/cpu.h> (i.e. outside #if defined(_KERNEL))
for crash(8) as amiga and sun3. There are _KERNEL protections in it.

Briefly tested by "build.sh -m news68k -U build".
Further possible botch will be fixed later.

branches: 1.96.4; 1.96.8;
- 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.

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: 1.94.2; 1.94.4;
Collect cpu_info and friends and move to m68k/include/cpu.h
Add a define __HAVE_CPU_DATA_FIRST which means that cpu_data is the first
member in struct cpu_info.

branches: 1.93.4;
Remove uarea swap-out functionality:

- Addresses the issue described in PR/38828.
- Some simplification in threading and sleepq subsystems.
- Eliminates pmap_collect() and, as a side note, allows pmap optimisations.
- Eliminates XS_CTL_DATA_ONSTACK in scsipi code.
- Avoids few scans on LWP list and thus potentially long holds of proc_lock.
- Cuts ~1.5k lines of code. Reduces amd64 kernel size by ~4k.
- Removes __SWAP_BROKEN cases.

Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on
acorn26 (thanks to <bjh21>).

Discussed on <tech-kern>, reviewed by <ad>.

branches: 1.92.4;
Remove CTL_MACHDEP_NAMES, it's not used anywhere.

Ok by martin@.

branches: 1.91.2; 1.91.6;
revert previous; as yamt pointed out, these bits are in <sys/cpu.h>.

cargo-cult CPU_INFOITERATOR and _FOREACH to make kern_prf.c build again.
These should probably be abstracted out to sys/cpu.h at some point, since
they don't really change from arch to arch.

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: 1.88.2;
Add ci_cpuid where it's missing.

branches: 1.87.2; 1.87.4; 1.87.8;
Rather than attaching fpu as a usual device during cpu_configure(9),
initialize it explicitly in identifycpu() (before cpu_configure(9))
because after yamt-idlelwp merge savectx() is called before
cpu_configure(9) and it requires fputype initialized properly,
otherwise a kernel fails in savectx() if a machine doesn't have an FPU.

Move declarations of m68k common functions
from <machine/cpu.h> to <m68k/m68k.h>.
While here, remove some obsolete function decls.

Remove obsolete decralations of switch_exit() and switch_lwp_ext().

Add missing call to lwp_startup() in lwp_trampoline() (which was renamed
from proc_trampoline to match the other ports).

A DIAGNOSTIC kernel will now boot and run. LOCKDEBUG still doesn't work yet.
Also, my amiga no longer loses time.

Start yamt-idlelwp fixes.

branches: 1.82.2; 1.82.4; 1.82.10;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.81.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

Merge newlock2 to head.

branches: 1.79.20;
merge ktrace-lwp.

branches: 1.78.2;
Add const.

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

don't expose cpu_info to userland.

move some per-cpu data definitions to MI place so that they can be modified
without touching all ports. discussed on tech-kern@.

Rearrange process exit path to avoid need to free resources from different
process context ('reaper').

From within the exiting process context:
* deactivate pmap and free vmspace while we can still block
* introduce MD cpu_lwp_free() - this cleans all MD-specific context (such
as FPU state), and is the last potentially blocking operation;
all of cpu_wait(), and most of cpu_exit(), is now folded into cpu_lwp_free()
* process is now immediatelly marked as zombie and made available for pickup
by parent; the remaining last lwp continues the exit as fully detached
* MI (rather than MD) code bumps uvmexp.swtch, cpu_exit() is now same
for both 'process' and 'lwp' exit

uvm_lwp_exit() is modified to never block; the u-area memory is now
always just linked to the list of available u-areas. Introduce (blocking)
uvm_uarea_drain(), which is called to release the excessive u-area memory;
this is called by parent within wait4(), or by pagedaemon on memory shortage.
uvm_uarea_free() is now private function within uvm_glue.c.

MD process/lwp exit code now always calls lwp_exit2() immediatelly after
switching away from the exiting lwp.

g/c now unneeded routines and variables, including the reaper kernel thread

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

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

branches: 1.72.2;
Merge the nathanw_sa branch.

untangle includes a bit:
don't include cpu.h in pmap.h, nor cacheops.h in cpu.h. instead,
include cpu.h and cacheops.h in just those .c files that need them.

Use m68k/m68k/cacheops.[ch]
Use m68k/m68k/bus_dma.c
- Add mainbus_attach_args with bus_space_tag_t and bus_dma_tag_t.
- Use passed-in tags for nubus scan.

Add the machine id of PowerBook 190CS.

prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.67.2; 1.67.8;
use _KERNEL_OPT

branches: 1.66.2;
Unification of the m68k syscall() function.

Make need_resched() take a "struct cpu_info *" argument. This
causes gives a primitive form of processor affinity. Its use in
roundrobin() still needs some work.

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.

branches: 1.63.2;
Define cpu_number() as discussed on tech-smp.

Unfortunately, several changes that are intermingled:
- Add initial IOP support. ADB doesn't work yet for me, but it's here so
that others will be encouraged to work on it. ADB_HW_IOP basically
is configured as a NOP so that serial consoles will continue to work.
- Roll via1_intr and via2_intr into the intr.c scheme--this also required
changing rtclock_intr to grovel the stack differently so that hardclock
gets the right arguments and softclock() doesn't get all reentrant.
- Make via1 interrupts parallel to via2 interrupts--handlers get a pass-
through pointer and we can register handlers. Register via1 interrupt
with intr_establish()--normally level 1, level 6 for A/UX scheme.
- Use intr_establish() to set real via2 interrupt handler instead of the
hacked function pointer.
- Reorganize adb-direct interrupts so that a function call is removed.
- Implement A/UX interrupts for all Quadras right now. We may need to
special case some Quadras, but Linux folks are reporting success on
several models.
- Fix intrnames to be accurate for the normal, PSC, and A/UX interrupt
configurations.

Prototype kvtop() here.

branches: 1.60.2; 1.60.4;
oops. void->int

synchronize types, and s/curproc/p/ in one forgotten place

mac68k part of pr 6152 fix, and missing bits for the others

vm_offset_t -> {paddr_t, vaddr_t}

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.

Add gestalt machine type for the PowerBook 190/190cs.

Avoid declaring the "astpending" and "want_resched" globals in cpu.h,
as this breaks C++ code that happens to indirectly include this header.
Both Matthias Scheler and I noticed this, independently.

This problem notably does not affect the atari and sun3/sun3x ports,
which have already implemented a similar solution.

Make these compile after m68k/m68k.h 1.4->1.5.

branches: 1.52.2;
Convert to MI 8530 SCC driver, from Bill Studenmund. The new front end
also supports DTR/CTS flow control.

port-mac68k/4175: Need to add support for 33 MHz LC475/Q605.
Fix applied. Thanks to David Johnston for the PR and the reminder.

branches: 1.50.4;
Prototype DCIS().

Remove redundant cpu_set_kpc() prototype, found by Paul Goyette.

Adjust for previous m68k/pcb.h change

Move all splxxx() and softint-related macros and prototypes to intr.h,
and include it where appropriate.

Move physaccess/physunaccess prototypes.

Console bell callback support prototypes

branches: 1.44.2;
Define single-instruction implementations of setsoft*() and siroff(),
and declare ssir as volatile. This avoids the problem of lost softints
should a hard interrupt cause a softint to be flagged while we are
clearing a different one.

Idea from atari mtpr.h, modified/optimized by me.

Define MACH_CLASSQ2, used by Performa 575.
Remove susword() because of prototype conflict with <sys/systm.h>.

Add second Quadra class and machineid (gestalt value) for Color Classic II

Use <m68k/cpu.h>.

Back out previous; actually, this is never a problem for us. (Duh.)

Fix from Leo Weppelman: Change accesses to 'ssir' to inline asm macro's.

Add Powerbook 500 series machine ID

Patches from Bill Studenmund to get serial default settings from the booter.

More from Dave Huang (khym@bga.com)--set ROMLEN to 2MB and make another
class for AV machines (C660AV and Q840AV).

Add MACH_CLASSDUO.

branches: 1.34.4;
m68881_restore takes struct fpframe *, not int [].

Prototype for sunos_sendsig() is now in sunos.h as suggested by veego.

Include pcb.h for prototypes.

Move a few prototypes into machine/cpu.h.

Prototype for sunos_sendsig().

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Clean out some unneeded constants.

Add #defines for some more machines.

Remove deprecated cpu_setstack().

Shuffle MACH_CLASSes around a tad and add IIvx as a seperate class because
it may have a different method for accessing the 'via2' functions.

Get rid of cpu040 for good.

Change NBSBASE to 0x90000000 and let it and NBSTOP be defined.

Remove cpu_set_init_frame() define.
Remove BROKEN_SWAP
Change cpu_swapout() to null-op.
Remove profile_tick() define.
Add some 040 stuff and make other 040 stuff compat. with hp300 port.
Cleanup a bit.

Nuke cpu_exec and remove extra semicolon on cpu_swapout() panic string
(preparing for more changes in a bit...)

define BROKEN_SWAP and/or cpu_swapout as appropriate.

- added sunos_machdep.c for sun3, atari, amiga and mac68k.
- changed machdep.c and trap.c to use struct emul.
- remove ep_setup references.
- added struct emul to all emulations.

KERNEL -> _KERNEL

Mac ROM Glue changes from grantham@tenon.com.

new RCS ID format.

Add a serial console flag that's passed in from the booter.

Add a field for cpu-dependent structure to flag if SONIC is on-board.

Be somewhat better at machine dependence.

branches: 1.12.2;
Revert back to old HP MMU defines so we can use fpsp w/o changes.

Cleanup a lot and bring in line w/ 4.4-lite.

Get things to compile with latest changes.

Make external definition for cpu040.

'040 changes from Amiga.
Protect against multiple inclusion.
Swap arguments in struct clockframe.

At least recognize different machine types.

Add LCII machine id.

Add a few new defined machine type constants and a few new globals.

We aren't a VAX.

Change constants and comments to reflect the current MACHINE value.
Define T_BRKPT and T_WATCHPOINT.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Cleanup and clarify the ELFSIZE mess:

We now have 2 variables automatically set in elf_machdep.h:

ARCH_ELFSIZE: the size for userland binaries
KERN_ELFSIZE: the size for the kernel binaries

DB_ELFSIZE has been deleted and KERN_ELFSIZE should have always the
same values DB_ELFSIZE used to have.

In sys/exec_elf.h, if ELFSIZE is not set, it is set to KERN_ELFSIZE
for the kernel and ARCH_ELFSIZE for userland. These defaults should
eliminate the need for most manual ELFSIZE setting.

branches: 1.4.166;
prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.3.48; 1.3.52;
new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added for ddb support. I think it's at least partially wrong. This and
the files in mac68k/db_* started off as the sun3 files...

centralize setdisklabel(9)

branches: 1.7.54;
Add getlabelusesmbr(), as proposed in
http://mail-index.netbsd.org/tech-userlevel/2011/08/25/msg005404.html
This is used by disk tools such as disklabel(8) to dynamically decide is
the undelyling platform uses a disklabel-in-mbr-partition or not
(instead of using a compile-time list of ports).
getlabelusesmbr() reads the sysctl kern.labelusesmbr, takes its value from the
machdep #define LABELUSESMBR.
For evbmips, make LABELUSESMBR 1 if the platform uses pmon
as bootloader, and 0 (the previous value) otherwise.

Use <sys/disklabel_mbr.h>.

Add DOS partition handling, from Ken Nakata in PR 4999, with
only slight tweaking by me.

XXX - does not currently handle NetBSD/i386 or 386BSD/FreeBSD partitions.

Add magic number for driver map structure. (oops!)

Integrate Macintosh partition map and driver descriptor map definitions.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

move arch dependence to archs. clean up a bit. deal with weird MAXPARTITONS.

Basic elf_machdep.h for m68k; doesn't include relocations, yet.

In the `MY THAT'S GROSS' department...
Eliminate the recursive include of machine/endian.h from sys/endian.h.

branches: 1.5.34;
new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Add symbols for quads to limits and endian and protect endian from mult.
inclusion.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

branches: 1.1.6;
In the `MY THAT'S GROSS' department...
Eliminate the recursive include of machine/endian.h from sys/endian.h.

moved to aout_machdep.h (via repository copy)

Use <m68k/exec.h>.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

Move MID_MACHINE to param.h from exec.h and get rid of bogus includes.

Added struct relocation_info_mac68k. Copied from hp300.

Update MACHINE to mac68k in param.h.
Update MACHINE_MID to MID_M68K -- untested.
Add __LDPGSZ as 8192 -- untested.

Added signal.h for -current. The rest is formatting changes.

Put definition of __LDPGSZ and `struct relocation_info' where they belong:
in <machine/exec.h>.

branches: 1.1.1;
Initial revision

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.

branches: 1.1.2; 1.1.18;
fenv for m68k

Prototype __flt_rounds() consistently.

branches: 1.6.16;
Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Wrap with #ifndef _XXX_FLOAT_H_/#define _XXX_FLOAT_H_/ ... /#endif.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Final bit of PR 41200: headers that declare ioctls should include sys/ioccom.h.
This covers most if not all of the MD headers.

XXX: a lot of the ioctl definitions in some of these files are cutpasted.

branches: 1.14.14; 1.14.32;
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: 1.13.66; 1.13.72; 1.13.74;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.12.26;
merge ktrace-lwp.

branches: 1.11.12;
Protect against multiple inclusion. Lets "kdump" and "ktrace" build again
on mac68k.

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

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

branches: 1.9.16;
prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.8.8; 1.8.12;
Merge wscons work onto the main development branch.

branches: 1.7.8; 1.7.16;
Whoops, forgot to bracket struct grfinfo with #ifdef GRF_COMPAT.

Add a GRF_COMPAT option so that old-style grf ioctl() code can be
removed from the kernel.

Add missing interface for getting a grfmode structure from kernel.

Add a couple elements to the grfmode structure.

Add new nubus handling that's much more robust.
Update via, if_ae, and grf accordingly.
Revamp grf.

new RCS ID format.

branches: 1.1.2;
Moved adbsys.h grfioctl.h and keyboard.h to include to make desktop
and X compile more cleanly.

A foolish consistency.

branches: 1.1.4;
Pullin m68k/ieee.h.

Fix typo: ieefp.h -> ieeefp.h.

Move fp_except and fp_rnd definitions to machine/include.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 integer constant macros.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 integer format conversion macros.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 specified-width integer type limits.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2; 1.1.4; 1.1.12;
Add definitions of C99 minimum-width and greatest-width integer types.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2;
Add <machine/int_types.h>, which provides namespace-pure definitions
of exact-width integer types.

Fix up the mac68k interrupt handlers to work with the new style common
clockframe layout and remove the CLOCK_FORMAT0 work-around. As a nice
side-effect, this also eliminates the super-sketchy stack unwinding used
by rtclock_intr to get at the interrupt stack frame.

mac68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).

branches: 1.31.112;
Revert part of previous changes:
> make makeiplcookie() return PSL bits via ipl2psl_table[]
> rather than IPL_FOO indexes
because ipl2psl_table[] could be updated during autoconf(9)
and we can't use it as cookie before cpu_configure(9).

branches: 1.30.2;
Unify splraiseipl(9) implementation among m68k ports as per
suggestion from isaki@ on port-m68k.

For mac68k:
- rename mac68k_ipls[] to common ipl2psl_table[]
- make makeiplcookie() return PSL bits via ipl2psl_table[]
rather than IPL_FOO indexes

branches: 1.29.6; 1.29.10; 1.29.12; 1.29.14;
Remove unused splfoo() definitions.

Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.27.16; 1.27.18; 1.27.24;
- Shrink ipl_cookie_t from 32-bits to 16-bits (large enough to hold
an SR value or an IPL_* constant).
- Take advange of the smaller ipl_cookie_t to shrink kmutex_t from
16 bytes to 8 bytes by overlapping storage where possible.
- Implement a RAS-based _lock_cas() for mc68010 systems (Sun2). See
sun68k/sun68k/isr.c.

Tested on various m68k platforms, but NOT Sun2. In any case, at least
Sun2 compiles now.

branches: 1.26.2;
MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

branches: 1.25.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.

merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

branches: 1.23.20; 1.23.22;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

implement splraiseipl() for the following ports.
evbppc, evbmips, evbsh3, hp700, mac68k, vax, x68k.

branches: 1.21.10; 1.21.16;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.20.8; 1.20.24;
Remove the use of splimp() from the NetBSD kernel. splnet()
and only splnet() is allowed for the protection of data structures
used by network devices.

branches: 1.19.2;
Make sure everybody has an splvm() and equate it with splimp() (splimp()
is the historical name for this interrupt level, and the historical name
is going to go away in the near future).

Add spllock(). See spl(9) for details.

Change the behavior of spladb() so that it raises the IPL only
high enough to block ADB interrupts.

branches: 1.16.2; 1.16.4; 1.16.8;
Change the semantics of splsoftclock() to be like other spl*() functions,
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.

This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).

XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.

Use an array for PSL values, rather than individual shortwords, like
the hp300 port.

Slightly rearrange the SSIR inline assembly implementation in order to avoid
making assumptions on C symbol name prefixes.

branches: 1.13.2; 1.13.6;
Move all IPL setup to intr.c, and do some sanity checking.

Fix a typo in the (unused!) splsched() macro.

The return value from intr_dispatch() is no longer necessary.

Implement splaudio().

New framework for handling processor interrupts, derived in part from
the hp300 port.

- Interrupts 3-6 use this immediately. Interrupt 7 is a special case,
and the VIA interrupts (1 and 2) will be addressed when that code is
rototilled.

- Modify the zs front end to register with the appropriate interrupt
controller: through the PSC on the AV Quadras, and direct to
interrupt 4 on the rest. Arrange to have the appropriate zsc_softc
supplied to us at interrupt time.

- Modify the direct ADB driver (and its PowerManager cousin) to call
intr_dispatch(), rather than zshard(). XXX This is a kludge, but at
least limits the brokenness to the ADB drivers, now.

As a side effect, this should fix PR 5590. Thanks to Bill Studenmund for
correctly determining the cause of the problem reported there.

Update from John Wittkoski: bug fixes for Cuda support.

Add in the if_mc ethernet driver for the AMD "MACE" part. This is the
internal ethernet on the Quadra/Centris 660av/840av.
Add initial support for the PSC (DMA controller) to support the above
(DMA SCSI remains unsupported). This involved also changing the way
that several interrupts are handled.
Above from David Huang <khym@bga.com>
Since the interrupts changed somewhat, we must also make the ipls
dynamic, defaulting to their prior levels and adjusted for the AVs.
I modelled this on the hp300.

branches: 1.6.2;
Remove advertising clause.

Drop splsched() to spl3(), so that it no longer blocks serial interrupts.

branches: 1.4.2;
New implementation of _splraise(): use word-length operands where possible
by implementing entirely in assembly. This saves some 6 bytes on all MPUs,
and about 8 cycles on the 030.

Now that it's optimized, define spltty() in terms of _splraise() so that
we don't inadvertantly lower the SPL.

Add en implementation of the Deferred Task Manager, contributed by Paul
Goyette <paul@pgoyette.bdt.com>.

Add copyright notice.

Move all splxxx() and softint-related macros and prototypes to intr.h,
and include it where appropriate.

merge ktrace-lwp.

Add message definitions for SWIM and for ADB autopoll.

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

branches: 1.4.24;
Some uncommitted poking around. No functional change.

Explicitly include headers needed by iopreg.h

branches: 1.2.2; 1.2.4; 1.2.8;
Include a bit more info about what's not happening with IOP.

Unfortunately, several changes that are intermingled:
- Add initial IOP support. ADB doesn't work yet for me, but it's here so
that others will be encouraged to work on it. ADB_HW_IOP basically
is configured as a NOP so that serial consoles will continue to work.
- Roll via1_intr and via2_intr into the intr.c scheme--this also required
changing rtclock_intr to grovel the stack differently so that hardclock
gets the right arguments and softclock() doesn't get all reentrant.
- Make via1 interrupts parallel to via2 interrupts--handlers get a pass-
through pointer and we can register handlers. Register via1 interrupt
with intr_establish()--normally level 1, level 6 for A/UX scheme.
- Use intr_establish() to set real via2 interrupt handler instead of the
hacked function pointer.
- Reorganize adb-direct interrupts so that a function call is removed.
- Implement A/UX interrupts for all Quadras right now. We may need to
special case some Quadras, but Linux folks are reporting success on
several models.
- Fix intrnames to be accurate for the normal, PSC, and A/UX interrupt
configurations.

merge ktrace-lwp.

Protect against multiple inclusion. Lets "kdump" and "ktrace" build again
on mac68k.

branches: 1.2.52;
rcsid fascism

branches: 1.1.14;
Mac ROM Glue changes from grantham@tenon.com.

Implement new crash dump format. Mostly taken from hp300, extended to
support multiple physical RAM segments by me. Garbage collect functions
obsoleted by this change.

Make C-\\ work; from Bill Studenmund, who noticed the swapped keycodes.
Closes PR #3294.

Add ^^ and ^_ codes to default keyboard layout

Mac ROM Glue changes from grantham@tenon.com.

new RCS ID format.

branches: 1.2.2;
Added a few macros for keys; cleaned up; only define key array
ifdef KEYBOARD_ARRAY, else just declare it.

Moved adbsys.h grfioctl.h and keyboard.h to include to make desktop
and X compile more cleanly.

- Normalize inclusion protection (remove)
- Move CHAR_{MIN,MAX} to a common file.
- Fix broken comments

branches: 1.7.190; 1.7.194;
multiple include protect machine/limits.h, fixes pr 4473 (from Mika Nystrom)

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Add symbols for quads to limits and endian and protect endian from mult.
inclusion.

Get rid of CLK_TCK. Theo reminds me that the value isn't
machine-dependent, which is why it's defined in time.h.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

branches: 1.1.6;
Require that each each MACHINE/MACHINE_ARCH supply a lock.h. This file
contains the values __SIMPLELOCK_LOCKED and __SIMPLELOCK_UNLOCKED, which
replace the old SIMPLELOCK_LOCKED and SIMPLELOCK_UNLOCKED. These files
are also required to supply inline functions __cpu_simple_lock(),
__cpu_simple_lock_try(), and __cpu_simple_unlock() if locking is to be
supported on that platform (i.e. if MULTIPROCESSOR is defined in the
_KERNEL case). Change these functions to take an int * (&alp->lock_data)
rather than the struct simplelock * itself.

These changes make it possible for userland to use the locking primitives
by including <machine/lock.h>.

branches: 1.1.4;
Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

branches: 1.1.2; 1.1.8;
C99: Define a NAN macro in <math.h> which evaulates to a constant expression of
a single-precision quiet NaN; only to be defined on platforms that do support
this value.

Merge the nathanw_sa branch.

branches: 1.1.2;
file mcontext.h was initially added on branch nathanw_sa.

Clean up deleted files.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

branches: 1.2.4;
Merge newlock2 to head.

branches: 1.1.2;
file mutex.h was initially added on branch newlock2.

Clean up deleted files.

The current MacBSD architecture sub-directory for NetBSD-0.9--more or
less. It needs some help to get to be -current. Support for minimal
hardware on the SE/30, II, IIx, and IIcx exists.

As per port-m68k/54254 and a few months of testing, mac68k will switch
to 8KB pages. OK with hauke@, rjs@ and tsutsui@.

branches: 1.45.48;
proper sizing of kmem_arena on different ports

PR port-i386/45946: Kernel locks up in VMEM system

branches: 1.44.4; 1.44.8;
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: 1.43.4; 1.43.6; 1.43.8;
Refactoring MD segment related definitions on m68k ports:
- move macro SEGSHIFT, NBSEG, and SEGOFSET from <machine/param.h>
to <m68k/pmap_motorola.h> where they should belong
- also simplify NBSEG macro for both 020/030 and 040/060 cases
- also move m68k_trunc_seg(), m68k_round_seg(), and m68k_seg_offset()
(that use SEGOFSET) from <m68k/param.h> to <m68k/pmap_motorola.h>
- add comments about each segment size value used on pmap_motorola
implementation
- add TIA_SIZE, TIA_SHIFT, TIB_SIZE, and TIB_SHIFT macro which can be
used for ste/pte index sizes
- use proper vaddr_t cast instead of unsigned for SEGOFSET/PGOFSET macro

Tested on atari, hp300, and news68k.

Fix wrong NBSEG values for all hp300 pmap derived m68k ports.
They were incorrect since 1997 on amiga and atari, and since 2002
on other ports, but fortunately they don't look so fatal.

Anyway, these values will be moved into <m68k/pmap_motorola.h> soon
since they are quite pmap implementation dependent.

branches: 1.41.78;
merge ktrace-lwp.

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

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

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

branches: 1.38.6;
merge pmap.h for all 4k-page motorola-MMU (or compatible) m68k platforms.

From John Klos, originally committed to the amiga port:
Updated NKMEMPAGES_MAX_DEFAULT so that large memory systems won't crash
when allocating/deallocating lots of memory at once.

branches: 1.36.8; 1.36.12; 1.36.20;
Update for the NKMEMPAGES changes.

CL* discarding.

branches: 1.34.10; 1.34.18; 1.34.24;
Move the definition of MSGBUFSIZE up to the machine-arch level if
possible. Pointed out by Bernd Ernesti.

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: 1.32.2;
Restore the define of NPTEPG.

The 'Mach derived conversion macros' are now in <m68k/param.h>

Use the MI <m68k/param.h> include.

Move all splxxx() and softint-related macros and prototypes to intr.h,
and include it where appropriate.

Protect MCLSHIFT definition so users can customize MCLBYTES, from Jonathan.

Define ALIGNED_POINTER

branches: 1.26.8;
Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

add _MACHINE and _MACHINE_ARCH, which are like MACHINE and MACHINE_ARCH,
execpt without quotes. meant to be __CONCAT()ted for easy #includes
of machine-dependent headers for MI code (e.g. for the MI ISA/EISA/PCI/TC
bus code).

Move spl stuff from param.h to psl.h. Prototype delay() in param.h.

Fix #includes.

Move splimp to 2 and spltty to 1.

Document spl()s a bit, order the splfoo()s in splX() order.

Replace splnet() with splsoftnet(). Add splnet(). Make splimp() > spltty().

clean up definitions of ctod(), dtoc(), ctob(), btoc(), btodb(), and
dbtob(). remove unused definitions of ctos(), stoc(), and dtob().

Update to look more like hp300. Clean up a lot.

Define DELAY.

Get rid of some BARFs and assign some semi-reasonable spl()s...

don't be so quick to cast macro arguments to unsigned; if the
arguments are really off_t's (e.g. to btodb), then you can lose
information. This was the "> 4G file systems don't work" bug; physio
uses btodb, which was broken.

Raise MCLBYTES to 2048.

new RCS ID format.

asm -> __asm (PR #463).

Add USPACE.

Get things to compile with latest changes.

'040 changes from Amiga.
Protect against multiple inclusion.

Get rid of DELAY defines. These are bogus. There has to be a better
way. And there will be.

Change constants and comments to reflect the current MACHINE value.
Define T_BRKPT and T_WATCHPOINT.

Dumb typo. Must be dyslexic. Changed MACHINE_MID to MID_MACHINE.

Move MID_MACHINE to param.h from exec.h and get rid of bogus includes.

Change USRTEXT to 8192 in vmparam.h.
Add MACHINE_ARCH (m68k) to param.h.

Update MACHINE to mac68k in param.h.
Update MACHINE_MID to MID_M68K -- untested.
Add __LDPGSZ as 8192 -- untested.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Use common m68k/pcb.h; noted by Erik Bertelsen <erik@sockdev.uni-c.dk>,
closes PR 3650.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Get rid of pcb_cmap2.

Make comment fit reality.

new RCS ID format.

Add md_coredump.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

bare asm -> __asm

branches: 1.3.84;
new RCS ID format.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Header file glue for __HAVE_NEW_PMAP_68K.

Move the mac68k "check bootstrap allocations fit" code into a new function
called pmap_machine_check_bootstrap_allocations(), and call it from the
existing Hibler pmap pmap_bootstrap1() in the appropriate place.

Add a new hook for the new pmap_bootstrap1() enabled by defining
PMAP_MACHINE_CHECK_BOOTSTRAP_ALLOCATIONS in <machine/pmap.h>. When
enabled, that function will be called once the bulk of the bootstrap
allocations have been completed.

Fix various typos, mainly in comments:
s/invaid/invalid/
s/instad/instead/
s/wich/with/
s/tranform/transform/
s/tranmist/transmit/
s/tranceiver/transceiver/
s/Tranparent/Transparent/
s/tranlated/translated/
s/tranfer/transfer/
s/tranmissions/transmissions/
s/condtions/conditions/
s/Recient/Recent/

Define values for the 68030 TT registers in terms of the definitions
in <m68k/mmu_30.h> rather than using magic numbers.

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

untangle includes a bit:
don't include cpu.h in pmap.h, nor cacheops.h in cpu.h. instead,
include cpu.h and cacheops.h in just those .c files that need them.

it really helps to get the stub right before cutting + pasting it 27 times.
alas, I did not. doh.

add pmap_remove_all() hook (empty on most platforms so far).

branches: 1.33.4;
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: 1.32.2; 1.32.4;
replace vm_page_t with struct vm_page *.

replace {simple_,}lock{_data,}_t with struct {simple,}lock {,*}.

Undo a misguided previous change to the pmap_update() API.

Give pmap_update() an argument (a pmap_t) so that it knows which
pmap it should be updating.

#define away pmap_update() in <machine/pmap.h> so that no function
call overhead is incurred as we start sprinkling pmap_update() calls
throughout the source tree (no pmaps currently defer operations, but
we are adding the infrastructure to allow them to do so).

branches: 1.27.6;
Sync cachectl1() implementation with other m68k ports.

branches: 1.26.2; 1.26.8;
Declare struct pmap kernel_pmap_store extern.

branches: 1.25.2; 1.25.4; 1.25.6;
mac68k part of pr 6152 fix, and missing bits for the others

vm_offset_t -> {paddr_t, vaddr_t}

Checkpoint of UVM work to date. This includes a fully-functioning
MACHINE_NEW_NONCONTIG interface implementation, which is now enabled
on all systems. Thanks to Jason Thorpe for his work on the hp300 port,
from which most of the code used here was derived.

XXX In spite of the fact that it works on the hp300, UVM does not (yet)
work well under load on mac68k.

Move pmap_map() function definition to MD headers, as appropriate. It's
an internal function, and the VM system shouldn't try to prototype it.
(Note that some ports _don't_ prototype it.)

Garbage-collect pm_stchanged; it's not used by anything.

Garbage-collect use of the PCB's copy of the user segment table pointer.

Now that all ports have pmap_activate(), and it has an identical interface,
prototype it in <vm/pmap.h>

Change an argument name to PMAP_ACTIVATE() to more accurately describe the
semantics of the argument.

- Make pmap_activate() and pmap_deactivate() take a struct proc *.
- Define active_user_pmap() and use it in the appropriate places (from hp300
port).

s/mac68k_btop/m68k_btop/

Adjust for previous m68k/pcb.h change

copypage() is now declared in m68k/cpu.h

Fixup a few prototypes and put 'em in their place.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

pmap_page_index isn't a macro.

Cleanup some and make these look more like hp300 versions.

Bring back pmap_kernel(), for now always inlined as a pointer to
kernel_pmap_store.

KERNEL -> _KERNEL

new RCS ID format.

Different pa_index() ifdef MACHINE_NONCONTIG.

branches: 1.5.2;
Fix warnings...

'040 changes from Amiga.

Change constants and comments to reflect the current MACHINE value.
Define T_BRKPT and T_WATCHPOINT.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.202; 1.1.204;
Implement pmc(9) -- An interface to hardware performance monitoring
counters. These counters do not exist on all CPUs, but where they
do exist, can be used for counting events such as dcache misses that
would otherwise be difficult or impossible to instrument by code
inspection or hardware simulation.

pmc(9) is meant to be a general interface. Initially, the Intel XScale
counters are the only ones supported.

m68k syscall rototill:

- Switch all m68k-based ports over to __HAVE_SYSCALL_INTERN.
- Add systrace glue.
- Define struct mdproc in <m68k/proc.h> instead of <machine/proc.h>.
(They were all defined exactly the same anyway, other than a couple
of the MDP_* flags.)

branches: 1.6.38; 1.6.42; 1.6.50;
GC obsolete MDP_AST flag.

new RCS ID format.

Get things to compile with latest changes.

Add MDP_STACKADJ for compat_sunos.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

branches: 1.4.6;
Use comments around the token after a #endif.

branches: 1.3.46;
Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

Copied from Amiga. Just include m68k/profile.h.

PR port-mac68k/24883

Support DMA xfer for SCSI adapter of AV Mac (660/840AV), written by
Michael Zucca.

This improves disk I/O performance by nearly one order of magnitude.
In addition, interrupt storm due to heavy disk PIO is resolved.

I'm deeply grateful to Michael Zucca for his analysis of DMA engine
and submission of PR. I also thank Izumi Tsutsui (useful comments on
port-mac68k@) and Martin Husemann (test on 660AV).

branches: 1.7.166;
merge ktrace-lwp.

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

Update David Huang's email address in the license
per his request in PR 24907.

branches: 1.4.36;
Add some constants from Linux/mac68k to note SCC, floppy, and SCSI registers.
Add some code, inspired by Linux/mac68k, to shutdown all DMA on the PSC
at startup and to disable and clear all interrupts except the SCC.

branches: 1.3.8; 1.3.12;
Checkpoint of UVM work to date. This includes a fully-functioning
MACHINE_NEW_NONCONTIG interface implementation, which is now enabled
on all systems. Thanks to Jason Thorpe for his work on the hp300 port,
from which most of the code used here was derived.

XXX In spite of the fact that it works on the hp300, UVM does not (yet)
work well under load on mac68k.

NetBSD RCSIds.

branches: 1.1.2;
Add in the if_mc ethernet driver for the AMD "MACE" part. This is the
internal ethernet on the Quadra/Centris 660av/840av.
Add initial support for the PSC (DMA controller) to support the above
(DMA SCSI remains unsupported). This involved also changing the way
that several interrupts are handled.
Above from David Huang <khym@bga.com>
Since the interrupts changed somewhat, we must also make the ipls
dynamic, defaulting to their prior levels and adjusted for the AVs.
I modelled this on the hp300.

Move all splxxx() and softint-related macros and prototypes to intr.h,
and include it where appropriate.

Define spladb() (conservatively, at least for now).

Move splimp back to spl2 (from spl4).

raise splimp() to spl4(); we need to block zs interrupts, too.

branches: 1.9.4;
Ooops. cut 'n' pasto. splzs should 4, not 2.

Serial driver with interface to a slightly modified version of the machine-
independent z8530 driver. When that driver is updated, the local copy
of those files may be removed. From Bill Studenmund.
Compiler warnings fixed by me.

Update several comments.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Move spl stuff from param.h to psl.h. Prototype delay() in param.h.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Header file glue for __HAVE_NEW_PMAP_68K.

merge pte.h for m68k w/ motorola or compatible MMU
(only 4k-page platforms so far).

branches: 1.10.12;
Replace references to PGOFSET with m68k_trunc_page() and m68k_page_offset(),
as appropriate.

branches: 1.9.24; 1.9.32; 1.9.38;
Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Cleanup some and make these look more like hp300 versions.

new RCS ID format.

Oops. w/ 4k pages, PTSIZE is larger.

PG_CC -> PG_CCB

Add '040 stuff from Amiga pte.h.
Also protect against multiple inclusion.

Moved PTBASE from 60000000 to 60100000 for PowerBooks. From grantham.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

merge ktrace-lwp.

SA_SIGINFO support for m68k (port specific changes)

branches: 1.11.58;
regdump() is prototyped in m68k/cpu.h now

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

HP300 -> MACHINE

stubs which pint to m68k include

Still need old #defines for now.

Implement `struct reg'.

Move #define of NIPCREG outside #fidef.

Ditto.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

branches: 1.2.4;
Merge newlock2 to head.

branches: 1.1.2;
file rwlock.h was initially added on branch newlock2.

Remove scsi96 driver.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

new RCS ID format.

Add a constant for masking off the scsi phase from the status register.

branches: 1.2.2;
Apparently the registers for the NCR 53c96 in the mac are laid out
the same as they arefor the 5380--15 bytes of padding between each
reg. Define a structure for that here, now.

First pass at a header file for the NCR 53C96 driver (still under
construction).

DMA, not dma nor Dma.

Quote "AS IS" as in the majority of Carnegy Mellon notices.

Fix a pasto in copyright text which has been procreating like rabbits..

branches: 1.3.26; 1.3.28;
new RCS ID format.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

make the definition of _JBLEN mach. dep. header-dependent.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

Standardize format.

new RCS ID format.

make <stdarg.h> a symlink, and clean up ports' stdarg.h and varargs.h files.

Fixup to use m68k headers, now. Thanks, Chris.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

branches: 1.2.18;
merge ktrace-lwp.

branches: 1.1.6;
Add m68k sunos_machdep.h

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

branches: 1.3.40; 1.3.218;
Rip protection against multiple inclusion from wrapper headers.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8; 1.2.12;
Pull in the right generic m68k header. (Where was my mind?)

Add COMPAT_SVR4 for m68k.

new RCS ID format.

Fixup to use m68k headers, now. Thanks, Chris.

Change constants and comments to reflect the current MACHINE value.
Define T_BRKPT and T_WATCHPOINT.

Added signal.h for -current. The rest is formatting changes.

branches: 1.1.1;
Initial revision

Define __HAVE_LEGACY_INTRCNT to indicate this port uses legacy intrcnt
interrupt accounting.

branches: 1.20.110; 1.20.112;
Now that __HAVE_TIMECOUNTER and __HAVE_GENERIC_TODR are invariants,
remove the conditionals and the code associated with the undef case.

branches: 1.19.2; 1.19.8;
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: 1.18.10;
Generic soft interrupts are mandatory.

branches: 1.17.2; 1.17.10;
MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

branches: 1.16.4;
Add Timecounter support for mac68k, using the otherwise idle second
timer of VIA1. Passes regression/sys/kern/time regression test.

While we are here, GC leftover prototypes from MI todr integration,
and clean up clockreg.h in the light of "Guide to the Macintosh
Hardware" information.

(Reviewed and okayed by Martin Husemann)

Convert mac68k to generic todr. Thanks to Robert Swindells for testing.

branches: 1.14.20; 1.14.22;
merge ktrace-lwp.

branches: 1.13.8;
mac68k no longer abuses cf_unit.

branches: 1.12.16; 1.12.24;
Use "#define<tab>".

branches: 1.11.8; 1.11.12;
add __BROKEN_CONFIG_UNIT_USAGE #define, becuase these ports do very
wrong things with device configuration data "cf_unit" information.

branches: 1.10.22; 1.10.30;
Remove __BROKEN_INDIRECT_CONFIG, since we are no longer broken.

First step inn removing config_scan() and the hacks that gave devices
on indirect-config busses a (permanent) softc that they could share
between 'match' and 'attach' routines:

Define __BROKEN_INDIRECT_CONFIG so that old autoconfiguration
interfaces are used, until drivers are converted to use the new
interfaces (actually, converted back to use the _older_ interfaces)
which prohibit indirect configuration devices from receiving a softc
in their match routine that they can share with their attach routine.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Remove this define--we're using the new dump type.

define __BDEVSW_DUMP_OLD_TYPE for ports where it's true. clean up
some m68k ports inclusion of common header.

new RCS ID format.

add comment for consistency.

Fixup to use m68k headers, now. Thanks, Chris.