30de9c50b0
phys_start and phys_end. Remove a stale documentation not about dis/uncontiguous memory. Update manual page date while I am around these ends. Reviewed by: alc
66 lines
2.2 KiB
Groff
66 lines
2.2 KiB
Groff
.\"
|
|
.\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 10, 2005
|
|
.Dt PMAP_INIT 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm pmap_init ,
|
|
.Nm pmap_init2
|
|
.Nd initialize the pmap subsystem
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In vm/vm.h
|
|
.In vm/pmap.h
|
|
.Ft void
|
|
.Fn pmap_init "void"
|
|
.Ft void
|
|
.Fn pmap_init2 "void"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn pmap_init
|
|
function initializes the
|
|
.Xr pmap 9
|
|
sub-system.
|
|
It is called during system initialization by
|
|
.Fn vm_init ,
|
|
to initialize any structures that the
|
|
.Nm
|
|
system needs in order to map between physical and virtual memory.
|
|
.Pp
|
|
The
|
|
.Fn pmap_init2
|
|
function initializes a zone for the PV entries.
|
|
These are used to implement page sharing at the physical level.
|
|
A high water mark is set so that the system can recover from
|
|
excessive numbers of PV entries.
|
|
.Sh SEE ALSO
|
|
.Xr pmap 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Bruce M Simpson Aq bms@spc.org .
|