s/varible/variable/

Drop unused headers. No functional changes intended.

Correct #ifdef; _MODULE not _MODULAR here.

Now __HAVE_PMAP_PHYSSEG is defined correctly for modules, which was
missing accidentally.

Restrict {MIN,MAX}_PAGE_SIZE for MODULAR || _MODULE, which makes
non-MODULAR kernel a little bit efficient.

They are also exposed to userland for jemalloc.

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

Provide the (max) defaults for page size for userland.

Recommit exec_subr.c revision 1.79:
Always include a 1MB guard area beyond the end of stack. While ASLR will
normally create a guard area as well, this provides a deterministic area
for all bin

Recommit exec_subr.c revision 1.79:
Always include a 1MB guard area beyond the end of stack. While ASLR will
normally create a guard area as well, this provides a deterministic area
for all binaries.

Mitigates the rest of CVE-2017-1000374 and CVE-2017-1000375 from
Qualys.

Additionally, change VM_DEFAULT_ADDRESS_TOPDOWN to include
user_stack_guard_size in the size reservation.

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src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

delete VM_DEFAULT_ADDRESS; some of those should be GC'ed because they match
the default definition.

Export MIN_PAGE_SIZE and MAX_PAGE_SIZE for modular kernels.

Readd powerpc/include/vmparam.h to the set lists
Export it to powerpc/include.h
Protect pmap.h and vmparam.h from getting an #error when included
from userland.
Export safe definitions of VM_MAXUSER_

Readd powerpc/include/vmparam.h to the set lists
Export it to powerpc/include.h
Protect pmap.h and vmparam.h from getting an #error when included
from userland.
Export safe definitions of VM_MAXUSER_ADDRESS, VM_MIN_ADDRESS,
VM_MAX_ADDRESS when _RUMPKERNEL is defined.

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PowerPC now exports a common view of cpu.h, vmparam.h and pmap.h
when building a MODULAR kernel or compiling _MODULE.
It should be noted that MODULAR or _MODULE export a view of the kernel
as being M

PowerPC now exports a common view of cpu.h, vmparam.h and pmap.h
when building a MODULAR kernel or compiling _MODULE.
It should be noted that MODULAR or _MODULE export a view of the kernel
as being MULTIPROCESSOR (even if isn't).
The shared pmap TLB uses mdpg in places where it used mdpg to avoid
deadly embrance inclusion problems.

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Don't export USER_SR if _MODULE is defined.
Add a common <powerpc/vmparam.h> like we have for <powerpc/pmap.h>

Update for the NKMEMPAGES changes.

CL* discarding.

Garbage-collect VM_MBUF_SIZE leftover.

VM_MBUF_SIZE is in terms of MCLBYTES, not CLBYTES.

MNN is no longer optional, remove old code

vm_offset_t --> [pv]addr_t

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

Merge in MACHINE_NEW_NONCONTIG support and some fix from Tsubai-San.
UVM support.

Fix typo.

bring mrg-vm-swap2 onto mainilne.

Always define MACHINE_NONCONTIG.

PowerPC port