K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2019-06-16T22:13:27.729636Z
K 7
svn:log
V 521
Three changes to arm64's pmap_unwire():

Implement wiring changes on superpage mappings.  Previously, a superpage
mapping was unconditionally demoted by pmap_unwire(), even if the wiring
change applied to the entire superpage mapping.

Rewrite a comment to use the arm64 names for bits in a page table entry.
Previously, the bits were referred to by their x86 names.

Use atomic_"op"_64() instead of atomic_"op"_long() to update a page table
entry in order to match the prevailing style in this file.

MFC after:	10 days

END