Manual Pages  — PMAP_ZERO

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

SYNOPSIS DESCRIPTION IMPLEMENTATION NOTES SEE ALSO AUTHORS

#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);

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.

This function is required to be implemented for each architecture supported by FreeBSD .

This manual page was written by Bruce M Simpson <Mt bms@spc.org>.