Date: Thu, 17 Jul 2014 20:03:52 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r268806 - head/share/man/man9 Message-ID: <201407172003.s6HK3qOD068663@svn.freebsd.org>
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Author: alc Date: Thu Jul 17 20:03:52 2014 New Revision: 268806 URL: http://svnweb.freebsd.org/changeset/base/268806 Log: Add a man page for the new function pmap_unwire(). Added: head/share/man/man9/pmap_unwire.9 (contents, props changed) Modified: head/share/man/man9/Makefile head/share/man/man9/pmap.9 Modified: head/share/man/man9/Makefile ============================================================================== --- head/share/man/man9/Makefile Thu Jul 17 18:58:30 2014 (r268805) +++ head/share/man/man9/Makefile Thu Jul 17 20:03:52 2014 (r268806) @@ -218,6 +218,7 @@ MAN= accept_filter.9 \ pmap_release.9 \ pmap_remove.9 \ pmap_resident_count.9 \ + pmap_unwire.9 \ pmap_zero_page.9 \ printf.9 \ prison_check.9 \ Modified: head/share/man/man9/pmap.9 ============================================================================== --- head/share/man/man9/pmap.9 Thu Jul 17 18:58:30 2014 (r268805) +++ head/share/man/man9/pmap.9 Thu Jul 17 20:03:52 2014 (r268806) @@ -119,6 +119,7 @@ operation. .Xr pmap_remove_pages 9 , .Xr pmap_resident_count 9 , .Xr pmap_ts_referenced 9 , +.Xr pmap_unwire 9 , .Xr pmap_wired_count 9 , .Xr pmap_zero_area 9 , .Xr pmap_zero_idle 9 , Added: head/share/man/man9/pmap_unwire.9 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/share/man/man9/pmap_unwire.9 Thu Jul 17 20:03:52 2014 (r268806) @@ -0,0 +1,66 @@ +.\" +.\" Copyright (c) 2014 Alan L. Cox <alc@rice.edu> +.\" 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 July 17, 2014 +.Dt PMAP_UNWIRE 9 +.Os +.Sh NAME +.Nm pmap_unwire +.Nd unwire a range of virtual pages +.Sh SYNOPSIS +.In sys/param.h +.In vm/vm.h +.In vm/pmap.h +.Ft void +.Fo pmap_unwire +.Fa "pmap_t pmap" "vm_offset_t start" "vm_offset_t end" +.Fc +.Sh DESCRIPTION +.Pp +The function +.Fn pmap_unwire +removes the wired attribute from each of the virtual-to-physical page mappings +within the virtual address range from +.Fa start +to +.Fa end +of the physical map +.Fa pmap . +Every valid mapping within that range is required to have the wired attribute +set. +Invalid mappings are ignored, since they cannot have the wired attribute set. +.Sh NOTES +Only the function +.Xr pmap_enter 9 +can be used to set the wired attribute of a virtual-to-physical page mapping. +.Sh SEE ALSO +.Xr pmap 9 , +.Xr pmap_enter 9 , +.Xr pmap_wired_count 9 +.Sh AUTHORS +This manual page was written by +.An Alan L. Cox Aq alc@rice.edu .
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