pmap_change_wiring man page on FreeBSD

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PMAP_CHANGE_WIRING(9)	 BSD Kernel Developer's Manual	 PMAP_CHANGE_WIRING(9)

NAME
     pmap_change_wiring — change physical wiring for a map or virtual address
     pair

SYNOPSIS
     #include <sys/param.h>
     #include <vm/vm.h>
     #include <vm/pmap.h>

     void
     pmap_change_wiring(pmap_t pmap, vm_offset_t va, boolean_t wired);

DESCRIPTION
     The pmap_change_wiring() function changes the wiring attribute for the
     page at virtual address va in the physical map pmap.  A wired page gets
     its name from being “wired” into the system page tables so that it will
     not be paged out.

     The mapping must already exist in the pmap.  If wired is TRUE, the map's
     wired page count will be incremented; if FALSE, it will be decremented.

     It is typically called by the vm_fault_unwire() function.

SEE ALSO
     pmap(9)

AUTHORS
     This manual page was written by Bruce M Simpson ⟨bms@spc.org⟩.

BSD				 July 21, 2003				   BSD
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