pmap_qenter man page on FreeBSD

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

NAME
     pmap_qenter, pmap_qremove — manage temporary kernel space mappings

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

     void
     pmap_qenter(vm_offset_t sva, vm_page_t *m, int count);

     void
     pmap_qremove(vm_offset_t sva, int count);

DESCRIPTION
     The pmap_qenter() function accepts a linear array of count pointers to
     wired pages *m, and enters each of these pages into the kernel virtual
     address (KVA) space, beginning at the address sva.

     The pmap_qremove() function tears out a mapping from the kernel virtual
     address space, beginning at sva and for count pages.

IMPLEMENTATION NOTES
     The pmap_qenter() function is intended for temporary mappings that do not
     require page modification or reference counting.  Old mappings are simply
     overwritten.  The pages must be wired into physical memory.

     The corresponding pmap_qremove() function is intended to remove such tem‐
     porary mappings.

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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