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PMAP_ZERO_PAGE(9FREEBSD) - Linux man page online | System kernel interfaces

Zero-fill a page using machine-dependent optimizations.

Chapter
July 21, 2003
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 optimiza‐ tions. 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 sin‐ gle 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 <@spc.org>.
BSD July 21, 2003 BSD
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pmap_zero_page(9freebsd) referred by pmap(9freebsd)
refer to bzero(3) | pmap(9freebsd)
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