1.\" 2.\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org> 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.\" $FreeBSD$ 27.\" 28.Dd July 21, 2003 29.Dt PMAP_REMOVE 9 30.Sh NAME 31.Nm pmap_remove , 32.Nm pmap_remove_all , 33.Nm pmap_remove_pages 34.Nd remove pages from a physical map 35.Sh SYNOPSIS 36.In sys/param.h 37.In vm/vm.h 38.In vm/pmap.h 39.Ft void 40.Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" 41.Ft void 42.Fn pmap_remove_all "vm_page_t m" 43.Ft void 44.Fn pmap_remove_pages "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" 45.Sh DESCRIPTION 46The 47.Fn pmap_remove 48function removes the range of addresses between 49.Fa sva 50and 51.Fa eva 52from the physical map 53.Fa pmap . 54If 55.Fa eva 56is less than 57.Fa sva , 58then the result is undefined. 59It is assumed that both 60.Fa sva 61and 62.Fa eva 63are page-aligned addresses. 64.Pp 65The 66.Fn pmap_remove_all 67removes the physical page 68.Fa m 69from all physical maps in which it resides, and reflects back the modify 70bits to the appropriate pager. 71.Pp 72The 73.Fn pmap_remove_pages 74function removes all pages from the physical map 75.Fa pmap , 76within the range of physical addresses bounded by 77.Fa sva 78and 79.Fa eva . 80This function is called when a process exits to run down its address space 81more quickly than would be the case for calling 82.Fn pmap_remove . 83.Sh SEE ALSO 84.Fn pmap 9 85.Sh AUTHORS 86This manual page was written by 87.An Bruce M Simpson Aq bms@spc.org . 88