remove extra token

Go back to not always defining PAGE_{SIZE,SHIFT,MASK}

add more exceptions for standalone and modules

make rump work again..

provide the max page size for userland

branches: 1.43.38;
switch to __USE_TOPDOWN_VM.

branches: 1.42.8; 1.42.18;
Move struct vm_page_md definition from vmparam.h to pmap.h, because
it's used only by pmap. vmparam.h has definitions for wider
audience.

All GENERIC kernels build tested, except ia64.

powerpc/include/booke/vmparam.h has one too, but it has no pmap.h,
so it's left as is.

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

branches: 1.40.2; 1.40.4;
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: 1.39.10; 1.39.18; 1.39.24;
Merge vmlocking2 to head.

branches: 1.38.44; 1.38.50; 1.38.54; 1.38.58;
reduce MAXSSIZ to 32 MB, like most other ports. fixes PR 30918.

branches: 1.37.2; 1.37.4; 1.37.6;
merge ktrace-lwp.

branches: 1.36.10; 1.36.12;
Max data size -> 512MB; default stack size -> 8MB.

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

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

branches: 1.34.2;
Don't define PAGE_SIZE, etc. in terms of NBPG, rather use the same
logic as used by <machine/param.h> to define constant PAGE_SIZE if
possible.

Also define the minimum and maximum PAGE_SIZE that might appear in
any given configuration (4K and 8K, respectively).

Move the PV list header into the VM page vm_page_md structure.
Also, start using a spin lock to protect PV list operations.

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.

Increase the default stack limit to 2M (from 512K on sparc and 1M
on sparc64).

branches: 1.30.10;
MAXSLP is defined to be a machine-independent scheduling parameter,
so move it into sys/param.h.

branches: 1.29.2; 1.29.8;
remove bogus curly braces from a structure forward-declaration.

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: 1.26.2;
* Make PAGE_SIZE et.al. constants, if possible.
* Add pvlist pointer to `struct pmap_physseg'
* Because of the above, add guard against multiple inclusions.

Update for the NKMEMPAGES changes.

Remove obsoleted macros.

Don't explode when we've got a lot of RAM. Limit our space for buffers
to 1/4 of the kernel VM map.

CL* discarding.

MNN has been standard for a Long Time.

branches: 1.20.2; 1.20.8;
Garbage-collect the VM_MBUF_SIZE constant. Instead, use the size
(nmbclusters * mclbytes), so that the right amount of KVA space is
allocated if those variables are patched.

fix some comments.

branches: 1.18.4;
MNN is no longer optional, remove dead code

Convert to [pv]addr_t & [pv]size_t.

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

Commit to MACHINE_NEW_NONCONFIG.

add new version of non contiguous memory code, written by chuck cranor,
called "MACHINE_NEW_NONCONGIG". this is required for UVM, the new VM
system (also written by chuck) that is coming soon. adds new functions:
vm_page_physload() -- tell the VM system about an area of memory.
vm_physseg_find() -- returns index in vm_physmem array that this
address is in.
and several new versions of old functions/macros defined in vm_page.h.


this is the sparc portion.

update comment from 1981 on memory and disk prices -- pr-2754 from Curt Sampson

bring mrg-vm-swap2 onto mainilne.

branches: 1.11.4; 1.11.8;
Allow larger text (64MB) and data (256MB) segments.
On sun4/sun4c with a virtual address hole (starting at 512MB), this seems
like a reasonable compromise: about 196MB left for shared libs and sysv-style
shared memory segments.
On the sun4m the limits can easily be made larger: consider turning
MAXTSIZ and MAXDSIZ into tunable variables..

Add missing prototypes and fix the fp struct for svr4.

LOCORE -> _LOCORE

Prototype dvma helper functions `dvma_malloc()/dvma_free()'

DVMA space is described by the variables `dvma_start' and `dvma_end'.
Prototype dvma_map*() routines.

#define MACHINE_NONCONTIG here, so all vm_*.c files see it timely.

copyright/Id cleanup

sun4/300 support works

decl SHMMAXPGS

stdarg.h, varargs.h, psl.h, autoconf.h: posted patches from torek
cpu.h: cpu_adjstack() won't work well in the NetBSD execve - need a
different model, stub enablertclock() for now..
exec.h: a netbsd-type exec.h file (ie. empty)
param.h: add MID_MACHINE
pmap.h: delete kernel_pmap hack - it doesn't work for us, + two proto's
vmparam.h: VM_MIN_ADDRESS = 0!

Chris Torek's sparc port. Missing lots of things.