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>.