1.\" 2.\" Copyright (c) 2014 Alan L. Cox <alc@rice.edu> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd July 17, 2014 27.Dt PMAP_UNWIRE 9 28.Os 29.Sh NAME 30.Nm pmap_unwire 31.Nd unwire a range of virtual pages 32.Sh SYNOPSIS 33.In sys/param.h 34.In vm/vm.h 35.In vm/pmap.h 36.Ft void 37.Fo pmap_unwire 38.Fa "pmap_t pmap" "vm_offset_t start" "vm_offset_t end" 39.Fc 40.Sh DESCRIPTION 41The function 42.Fn pmap_unwire 43removes the wired attribute from each of the virtual-to-physical page mappings 44within the virtual address range from 45.Fa start 46to 47.Fa end 48of the physical map 49.Fa pmap . 50Every valid mapping within that range is required to have the wired attribute 51set. 52Invalid mappings are ignored, since they cannot have the wired attribute set. 53.Sh NOTES 54Only the function 55.Xr pmap_enter 9 56can be used to set the wired attribute of a virtual-to-physical page mapping. 57.Sh SEE ALSO 58.Xr pmap 9 , 59.Xr pmap_enter 9 , 60.Xr pmap_wired_count 9 61.Sh AUTHORS 62This manual page was written by 63.An Alan L. Cox Aq alc@rice.edu . 64