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Man Pages


Manual Reference Pages  -  PMAP_ZERO_AREA (9)

NAME

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

CONTENTS

Synopsis
Description
Implementation Notes
See Also
Authors

SYNOPSIS


.In sys/param.h
.In vm/vm.h
.In 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
.Fx .

SEE ALSO

bzero(3), pmap(9)

AUTHORS

This manual page was written by
.An Bruce M Simpson Aq bms@spc.org .
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