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: 1.13.36;
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: 1.12.16; 1.12.18;
fenv for m68k

branches: 1.11.12; 1.11.30;
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.

Remove garbage in previous.

branches: 1.9.2;
Merge newlock2 to head.

branches: 1.8.4;
don't install <machine/db_machdep.h>, this is kernel only

branches: 1.7.4; 1.7.8;
merge ktrace-lwp.

branches: 1.6.12;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.

branches: 1.5.2;
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: 1.2.4;
Added bits to use the console code under sys/arch/sun2 and
sys/dev/sun.

branches: 1.1.2; 1.1.8;
Added a Makefile for the sun2 includes.

branches: 1.1.2; 1.1.10;
Added.

Rename __LDPGSZ to AOUT_LDPGSZ, to accurately reflect what it is.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.3.8;
Include a common header, then define macros that
give the appearance of specific attach args for
the mbio and mbmem buses.

Now simply include the real header under arch/sun68k.

branches: 1.1.2;
Added.

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.

Improve consistency between <sys/bswap.h> and what's actually
defined by the C library for the various m68k ports by borrowing
some #ifs from the i386 port.

Also, align sun2 with the other m68k ports as to whether they
define __bswap{16,32} or bswap{16,32} in their C library (all
now define the __ variants).

This should make the m68k ports build sys/rump again, except
for sun2 which hits another problem later on.

branches: 1.1.2; 1.1.10; 1.1.42; 1.1.84; 1.1.92; 1.1.102; 1.1.104;
Added.

branches: 1.3.8;
Now simply include the real header under arch/sun68k.

branches: 1.2.2;
Added an internal bus_space flag to find and use PROM mappings.
Added an internal bus_dma flag to mark when a map has been
loaded by double-mapping pages by hand, outside of the pmap.
Added more prototypes for our bus_dma implementation.

Added.

branches: 1.1.2; 1.1.10;
Added.

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: 1.4.8;
Use "#define<tab>".

- define other DEV_ constants that the local port uses.
- delete cdev_decl(mm) since <sys/conf.h> does it.

branches: 1.2.2; 1.2.8;
Declare the PROM console device.

branches: 1.1.2;
Added.

branches: 1.3.8;
Just include a common header.

use _KERNEL_OPT

branches: 1.1.2;
Added.

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: 1.7.122;
merge ktrace-lwp.

Remove declarations for db_read_bytes() and db_write_bytes().
They are in <ddb/db_access.h>.

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

branches: 1.4.10; 1.4.18;
Nuke local extern label_t *db_recover; it's now in <ddb/db_extern.h>

Purge vm_offset_t.

branches: 1.2.2;
Remove unneeded declarations of the db_machine_init() function. The
ARM ports are the only ones that actually have one, and it is about
to change.

branches: 1.1.2; 1.1.4; 1.1.8;
Added.

merge ktrace-lwp.

Make disklabel(8) and fdisk(8) into "host tools " last step: build
and install ${TOOLDIR}/bin/${MACHINE_GNU_PLATFORM}-disklabel,
${TOOLDIR}/bin/${MACHINE_GNU_PLATFORM}-fdisk by "reaching over" to
the sources in ${NETBSDSRCDIR}/sbin/{disklabel fdisk}/.

To avoid clashes with a build-host's header files, especially on
*BSD, the host-tools versions of fdisk and disklabel search for
#includes such as disklabel.h, disklabel_acorn.h, disklabel_gpt.h,
and bootinfo.h in a new #includes namespace, nbinclude/. That is,
they #include <nbinclude/sys/disklabel.h>, <nbinclude/machine/disklabel.h>,
<nbinclude/sparc64/disklabel.h>, instead of <sys/disklabel.h> and
such. I have also updated the system headers to #include from
nbinclude/-space when HAVE_NBTOOL_CONFIG_H is #defined.

branches: 1.2.8; 1.2.24;
Now simply include the real header under arch/sun68k.

branches: 1.1.2;
Added.

fix typos in comments, mainly s/harware/hardware/.

branches: 1.7.124;
Remove clause 3 and 4 from TNF licenses

branches: 1.6.74; 1.6.76; 1.6.78;
merge ktrace-lwp.

Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

branches: 1.4.2;
Use PAGE_SIZE rather than NBPG.

branches: 1.3.8;
Corrected the value of DVMA_OBIO_SLAVE_BASE; obio
devices can see the entire CPU address space.

branches: 1.2.2;
Now use the proper DVMA map size depending on what
machine type we're on.
Removed all prototypes, since we're going bus_dma.

Added.

Remove clause 3 and 4 from TNF licenses

branches: 1.3.74; 1.3.76; 1.3.78;
merge ktrace-lwp.

Move common Sun3/Sun4 EEPROM definitions in to <dev/sun/eeprom.h>

branches: 1.1.2; 1.1.10; 1.1.26;
Added.

Define ELF32_EHDR_FLAGS_OK()/ELF64_EHDR_FLAGS_OK() and use it
as an added measure to make sure that we can execute a binary.
These default to (1) if elf_machdep.h does not override them.

On Sun2, ELF32_EHDR_FLAGS_OK() checks for the presense of EF_M68000,
since the 68010 cannot run binaries for the 68020-and-up.

Just use the stock m68k/elf_machdep.h for now, so that things compile.
A patch to handle EF_M68000 will be posted shortly.

Add support for dumping ELF-cormat core files.

branches: 1.2.2; 1.2.8;
Now define a suitable ELF32_MACHDEP_ID_CASES.

branches: 1.1.2;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.1.4; 1.1.10;
Added bits to use the console code under sys/arch/sun2 and
sys/dev/sun.

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

branches: 1.1.8;
Added these required headers.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.2.8;
Now simply include the real header under arch/sun68k.

branches: 1.1.2;
Added.

branches: 1.1.8;
Added these required headers.

branches: 1.1.8;
Added these required headers.

branches: 1.1.2; 1.1.10;
Add definitions of C99 integer constant macros.

branches: 1.1.2; 1.1.10;
Add definitions of C99 integer format conversion macros.
XXX Fastest minimum-width integer types haven't been decided upon yet.

branches: 1.1.2; 1.1.10;
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; 1.1.10;
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; 1.1.10;
Added.

Minor cleanups before isr.c merge with sun3:
- include <m68k/cpu.h> rather than <m68k/m68k.h> in <sun68k/cpu.h>
- wrap M68K_VAC definition with #ifndef _SUN3X_ in <sun68k/cpu.h>
- move setsoftnet() macro from <sun68k/cpu.h> to <sun68k/intr.h>
- move declarations for isr_soft_request() and isr_soft_clear() from
sun2/include/intr.h to <sun68k/intr.h>
- remove extern keyword from function declarations

branches: 1.5.20; 1.5.22;
merge ktrace-lwp.

branches: 1.4.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

branches: 1.3.8; 1.3.24; 1.3.32;
Now simply include the real header under arch/sun68k.

branches: 1.2.2;
Now define IPL_BIO.

Added.

branches: 1.1.8;
Just include a common header.

branches: 1.1.8;
Just include a common header.

branches: 1.1.2; 1.1.10;
Added.

Remove clause 3 and 4 from TNF licenses

branches: 1.3.74; 1.3.76; 1.3.78;
merge ktrace-lwp.

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

branches: 1.1.2; 1.1.10; 1.1.26; 1.1.34;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.1.4; 1.1.8;
Make sun68k/stand build without installed ${DESTDIR} files.

Currently "machine" symlink points sys/arch/sun68k/include,
but this means some <machine/foo.h> files are taken from
sys/arch/sun68k/include but others (i.e. files not in sun68k/include)
are taken from ${DESTDIR}/usr/include/machine.

Instead, make "machine" symlink point sys/arch/${MACHINE}/include,
make "sun68k" symlink point sys/arch/sun68k/include (not sys/arch/sun68k),
add sys/arch to include path, and move some files where appropriate.

branches: 1.1.2; 1.1.10;
Added.

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: 1.1.8;
Added these required headers.

branches: 1.1.4; 1.1.8;
Make sun68k/stand build without installed ${DESTDIR} files.

Currently "machine" symlink points sys/arch/sun68k/include,
but this means some <machine/foo.h> files are taken from
sys/arch/sun68k/include but others (i.e. files not in sun68k/include)
are taken from ${DESTDIR}/usr/include/machine.

Instead, make "machine" symlink point sys/arch/${MACHINE}/include,
make "sun68k" symlink point sys/arch/sun68k/include (not sys/arch/sun68k),
add sys/arch to include path, and move some files where appropriate.

Merge the nathanw_sa branch.

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

branches: 1.2.8;
Now simply include the real header under arch/sun68k.

branches: 1.1.2;
Added.

branches: 1.2.4;
Merge newlock2 to head.

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

Include "opt_param.h" (ifdef _KERNEL_OPT) everywhere that MSGBUFSIZE is
referenced since some sources include <machine/param.h>.

branches: 1.15.56;
Poor sun2 has only 14MB KVA space so reduce NKMEMPAGES_MIN_DEFAULT and
NKMEMPAGES_MAX_DEFAULT values accordingly.

XXX: netbsd-6 GENERIC still gets "panic: pool_get: kmem-4096: page empty"

branches: 1.14.2;
proper sizing of kmem_arena on different ports

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

branches: 1.13.4; 1.13.8;
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: 1.12.2; 1.12.4; 1.12.6;
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: 1.11.2;
Refactoring MD segment related definitions on m68k ports:
- move macro SEGSHIFT, NBSG, and SEGOFFSET from <machine/param.h>
to <machine/pmap.h> where they should belong
- don't use m68k_round_seg() and m68k_trunc_seg() in sun2 pmap sources
and instead define and use sun2_round_seg() and sun2_trunc_seg()
since they are quite pmap implementation dependent

Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.9.34; 1.9.38; 1.9.40; 1.9.42;
Bump MAXBSIZE to 0x4000 because 16KB could be used by default
on newfs(8) in these days and we'll get "buf mem pool index 5" panic
in sys/kern/vfs_bio.c.

branches: 1.8.24; 1.8.26; 1.8.30; 1.8.32; 1.8.34;
merge ktrace-lwp.

branches: 1.7.8;
move spl*() and IPL_* definitions from psl.h to intr.h.

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

branches: 1.5.8;
Set MAXPHYS to 0xe000.
XXX This really is the wrong way to do this.

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

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

branches: 1.3.8; 1.3.18; 1.3.24;
Now always define PGSHIFT. Thanks to the ELF move, note the new
larger msgbuf size and different KERNBASE.

branches: 1.2.2;
Define a very small UBC_NWINS to keep UBC from eating all kernel VM.

Added.

branches: 1.1.2; 1.1.10;
Added.

pmap_remove_all(): Return a boolean value to indicate the behaviour. If
true, all mappings have been removed, the pmap is totally cleared out, and
UVM can then avoid doing the work to call pmap_remove() for each map entry.
If false, either nothing has been done, or some helpful arch-specific voodoo
has taken place.

Use "__nothing" macro defined in <sys/cdefs.h> for empty pmap_update().

Suggested by pgoyette@ in PR/54869.

branches: 1.26.38; 1.26.44;
The pmap_prefer() function grew an additional argument with the introduction
of top-down VM; fix the prototype accordingly.

switch to __USE_TOPDOWN_VM.

branches: 1.24.2; 1.24.12;
- remove simple_lock(9) and use atomic_ops(3) to account pmap reference count,
perrequest from rmind@
- while here no need to export struct pmap on sun2/sun3/sun3x

No particular problem for a week on hp300 and sun3x kernels with disabled
tcp_vtw which has been broken for a month on low memory machines.

branches: 1.23.4; 1.23.6; 1.23.10;
Export pmap_procwr() declaration only #ifdef _KERNEL.

Refactoring MD segment related definitions on m68k ports:
- move macro SEGSHIFT, NBSG, and SEGOFFSET from <machine/param.h>
to <machine/pmap.h> where they should belong
- don't use m68k_round_seg() and m68k_trunc_seg() in sun2 pmap sources
and instead define and use sun2_round_seg() and sun2_trunc_seg()
since they are quite pmap implementation dependent

Make pmap_kernel() a MI macro for struct pmap *kernel_pmap_ptr,
which is now the "API" provided by the pmap module. pmap_kernel()
remains as the syntactic sugar.

Bonus cosmetics round: move all the pmap_t pointer typedefs into
uvm_pmap.h.

Thanks to Greg Oster for providing cpu muscle for doing test builds.

branches: 1.20.6; 1.20.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.19.6; 1.19.8; 1.19.10;
Include sys/simplelock.h for the sake of pm_lock.

branches: 1.18.44; 1.18.50; 1.18.58;
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: 1.17.2; 1.17.4; 1.17.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.15.8;
de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

Convert the PMAP_PREFER() macro from two arguments (offset and hint)
to four (adding size and direction).

In order for topdown uvm to be an option on ports using PMAP_PREFER,
they will need to "prefer" lower addresses if topdown is being used.
Additionally, at least one port also needs to know the size.

branches: 1.13.6; 1.13.14;
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).

Purge vm_offset_t.

branches: 1.10.4;
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: 1.9.2; 1.9.4;
Added comments and fixed some macros now that I correctly
understand how to address the sun2 VME bus in the VM hardware.

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

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

Garbage-collect pmap_page_index().

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: 1.2.2;
Added a prototype for the internal function _pmap_extract_pmeg,
used by the bus_dma implementation when double-mapping pages
by hand.
Now define PMAP_OBMEM for completeness.

Added.

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: 1.1.2; 1.1.4; 1.1.10; 1.1.18;
Added.

branches: 1.1.8;
Added these required headers.

Remove clause 3 and 4 from TNF licenses

branches: 1.8.74; 1.8.76; 1.8.78;
merge ktrace-lwp.

Add const.

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

branches: 1.5.8;
Fix an overlooked PROM_getprop*() => prom_getprop*() rename.

branches: 1.4.12;
Added bits to use the console code under sys/arch/sun2 and
sys/dev/sun.

branches: 1.3.4;
Added the prom_kbdid function, to help us figure out if
the console keyboard is on the parallel interface or zs1.

branches: 1.2.2; 1.2.4;
Moved the definition of romVectorPtr here from mon.h.
Prototype prom_sd_target.

branches: 1.1.2;
Added.

branches: 1.4.8;
Now simply include the real header under arch/sun68k.

Rewrote a variable constraint to make gcc 2.95 happy.

branches: 1.2.2;
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.

Added.

Fix various typos, mainly in comments.

Add parantheses to macro to suppress possible compiler warnings.

branches: 1.7.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.6.74; 1.6.76; 1.6.78;
merge ktrace-lwp.

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

branches: 1.4.16; 1.4.24;
Purge vm_offset_t.

branches: 1.3.2; 1.3.8;
Now define kernel_context() and restore_context(), these
are used by some sun68k common code.

Added comments and fixed some macros now that I correctly
understand how to address the sun2 VME bus in the VM hardware.

branches: 1.1.2;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.2.4;
Merge newlock2 to head.

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

branches: 1.1.8;
Added these required headers.

branches: 1.1.2; 1.1.10;
Added.

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.

branches: 1.1.2; 1.1.10;
Added.

branches: 1.2.18;
merge ktrace-lwp.

branches: 1.1.6;
Add m68k sunos_machdep.h

branches: 1.1.2; 1.1.10;
Added.

Merge common sun68k types defns into <sun68k/types.h>.

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

Whitespace: #define<tab>

branches: 1.12.14; 1.12.16;
make as not having pmap statistics available

branches: 1.11.46;
Introduce __HAVE_NO___THREAD for sun2 and vax to disable the TLS usage.
Require __HAVE_TLS_VARIANT_I or __HAVE_TLS_VARIANT_II as well as
__lwp_getprivate_fast / __lwp_gettcb_fast to exist for libpthread.
Define VAX as going to use TLS variant I, if it is ever implemented.

branches: 1.10.2; 1.10.6;
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: 1.9.32; 1.9.42;
Now that __HAVE_TIMECOUNTER and __HAVE_GENERIC_TODR are invariants,
remove the conditionals and the code associated with the undef case.

branches: 1.8.2; 1.8.8;
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: 1.7.10;
Generic soft interrupts are mandatory.

branches: 1.6.12; 1.6.20;
Convert to timecounters. Since sun2 lacks a separate timer for microsecond
interpolation, we just use the default clock interrupt timer. (100Hz)

Oops, forgot to commit __HAVE_GENERIC_TODR. :-)

branches: 1.4.4; 1.4.8;
merge ktrace-lwp.

branches: 1.3.8;
sun2 no longer abuses cf_unit.

branches: 1.2.16; 1.2.24;
Use "#define<tab>".

branches: 1.1.2; 1.1.4; 1.1.10;
Added.

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.

branches: 1.1.8;
Added these required headers.

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

Clean up _LKM --> _MODULE leftovers.

Note that _KERNEL is always defined for modules.

switch to __USE_TOPDOWN_VM.

branches: 1.14.8; 1.14.18;
Remove incomplete, never worked dynamic run-time memory registration
(uvm_page_physload(9)). This functionality will be re-added later.

branches: 1.13.2; 1.13.4;
Remove SHMMAXPGS from all kernel configs. Dynamically compute the
initial limit as 1/4 of the physical memory. Ensure the limit is at
least 1024 pages, the old default on most platforms.

branches: 1.12.8; 1.12.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.11.16; 1.11.18; 1.11.20;
defparam PAGER_MAP_SIZE.

branches: 1.10.18; 1.10.60; 1.10.78; 1.10.80; 1.10.84;
Use PAGE_SIZE rather than NBPG.

Make PAGE_SIZE, PAGE_SHIFT, and PAGE_MASK a compile-time constant on Sun2.

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

Purge vm_offset_t.

MAXSLP is defined to be a machine-independent scheduling parameter,
so move it into sys/param.h.

branches: 1.5.2; 1.5.8;
Under _LKM, now undefine KERNBASE for declaring it.
Not sure if this is correct, but the real question
is whether 68000 LKMs are even possible.

Per discussion w/ chuck and chuck, restructure the md page stuff
to use a structure called "vm_page_md", and use __HAVE_VM_PAGE_MD
and __HAVE_PMAP_PHYSSEG.

Add a VM_MDPAGE_MEMBERS macro that defines pmap-specific data for
each vm_page structure. Add a VM_MDPAGE_INIT() macro to init this
data when pages are initialized by UVM. These macros are mandatory,
but ports may #define them to nothing if they are not needed/used.

This deprecates struct pmap_physseg. As a transitional measure,
allow a port to #define PMAP_PHYSSEG so that it can continue to
use it until its pmap is converted to use VM_MDPAGE_MEMBERS.

Use all this stuff to eliminate a lot of extra work in the Alpha
pmap module (it's smaller and faster now). Changes to other pmap
modules will follow.

branches: 1.2.2;
Be paranoid, #undef PAGER_MAP_SIZE before defining it.

Added.

branches: 1.1.8;
Just include a common header.

merge ktrace-lwp.

branches: 1.1.2;
Factor out W{CHAR,INT}_{MAX,MIN} into their own header file.

merge ktrace-lwp.

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

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

branches: 1.3.12;
Added bits to use the console code under sys/arch/sun2 and
sys/dev/sun.

branches: 1.2.2; 1.2.8;
Now don't include zsvar.h until the end. splzs() is
now defined in machine/cpu.h. Define zs_peripheral_type.

branches: 1.1.2;
Added.