freebsd man page for pmap_zero_area

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 supported 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