pmap_zero_area man page on FreeBSD

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

NAME
     pmap_zero_page, pmap_zero_area, pmap_zero_idle — zero-fill a page using
     machine-dependent optimizations

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

     void
     pmap_zero_page(vm_page_t m);

     void
     pmap_zero_page_area(vm_page_t m, int off, int size);

     void
     pmap_zero_page_idle(vm_page_t m);

DESCRIPTION
     The pmap_zero_page() function zero-fills an entire page using machine-
     dependent optimizations.  The pmap_zero_page_area() function is used to
     zero-fill an area of a page.  The range specified must not cross a page
     boundary; it must be contained entirely within a single page.

     The pmap_zero_page_idle() interface is used by the vm_pagezero process.
     The system-wide Giant lock should not be required to be held in order to
     call this interface.

IMPLEMENTATION NOTES
     This function is required to be implemented for each architecture sup‐
     ported by FreeBSD.

SEE ALSO
     bzero(3), pmap(9)

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

BSD				 July 21, 2003				   BSD
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