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

NAME
     pmap_zero_page, pmap_zero_area, - 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);

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.

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>.

FreeBSD 13.1-RELEASE-p6         August 30, 2016        FreeBSD 13.1-RELEASE-p6