1 /* $OpenBSD: uvm_map.h,v 1.5 2001/01/29 02:07:46 niklas Exp $ */ 2 /* $NetBSD: uvm_map.h,v 1.14 1999/05/26 19:16:36 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1997 Charles D. Cranor and Washington University. 6 * Copyright (c) 1991, 1993, The Regents of the University of California. 7 * 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * The Mach Operating System project at Carnegie-Mellon University. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by Charles D. Cranor, 24 * Washington University, the University of California, Berkeley and 25 * its contributors. 26 * 4. Neither the name of the University nor the names of its contributors 27 * may be used to endorse or promote products derived from this software 28 * without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 * @(#)vm_map.h 8.3 (Berkeley) 3/15/94 43 * from: Id: uvm_map.h,v 1.1.2.3 1998/02/07 01:16:55 chs Exp 44 * 45 * 46 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 47 * All rights reserved. 48 * 49 * Permission to use, copy, modify and distribute this software and 50 * its documentation is hereby granted, provided that both the copyright 51 * notice and this permission notice appear in all copies of the 52 * software, derivative works or modified versions, and any portions 53 * thereof, and that both notices appear in supporting documentation. 54 * 55 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 56 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 57 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 58 * 59 * Carnegie Mellon requests users of this software to return to 60 * 61 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 62 * School of Computer Science 63 * Carnegie Mellon University 64 * Pittsburgh PA 15213-3890 65 * 66 * any improvements or extensions that they make and grant Carnegie the 67 * rights to redistribute these changes. 68 */ 69 70 #ifndef _UVM_UVM_MAP_H_ 71 #define _UVM_UVM_MAP_H_ 72 73 /* 74 * uvm_map.h 75 */ 76 77 /* 78 * macros 79 */ 80 81 /* 82 * UVM_MAP_CLIP_START: ensure that the entry begins at or after 83 * the starting address, if it doesn't we split the entry. 84 * 85 * => map must be locked by caller 86 */ 87 88 #define UVM_MAP_CLIP_START(MAP,ENTRY,VA) { \ 89 if ((VA) > (ENTRY)->start) uvm_map_clip_start(MAP,ENTRY,VA); } 90 91 /* 92 * UVM_MAP_CLIP_END: ensure that the entry ends at or before 93 * the ending address, if it does't we split the entry. 94 * 95 * => map must be locked by caller 96 */ 97 98 #define UVM_MAP_CLIP_END(MAP,ENTRY,VA) { \ 99 if ((VA) < (ENTRY)->end) uvm_map_clip_end(MAP,ENTRY,VA); } 100 101 /* 102 * extract flags 103 */ 104 #define UVM_EXTRACT_REMOVE 0x1 /* remove mapping from old map */ 105 #define UVM_EXTRACT_CONTIG 0x2 /* try to keep it contig */ 106 #define UVM_EXTRACT_QREF 0x4 /* use quick refs */ 107 #define UVM_EXTRACT_FIXPROT 0x8 /* set prot to maxprot as we go */ 108 109 110 /* 111 * handle inline options 112 */ 113 114 #ifdef UVM_MAP_INLINE 115 #define MAP_INLINE static __inline 116 #else 117 #define MAP_INLINE /* nothing */ 118 #endif /* UVM_MAP_INLINE */ 119 120 /* 121 * globals: 122 */ 123 124 #ifdef PMAP_GROWKERNEL 125 extern vaddr_t uvm_maxkaddr; 126 #endif 127 128 /* 129 * protos: the following prototypes define the interface to vm_map 130 */ 131 132 MAP_INLINE 133 void uvm_map_deallocate __P((vm_map_t)); 134 135 int uvm_map_clean __P((vm_map_t, vaddr_t, vaddr_t, int)); 136 void uvm_map_clip_start __P((vm_map_t, 137 vm_map_entry_t, vaddr_t)); 138 void uvm_map_clip_end __P((vm_map_t, vm_map_entry_t, 139 vaddr_t)); 140 MAP_INLINE 141 vm_map_t uvm_map_create __P((pmap_t, vaddr_t, 142 vaddr_t, int)); 143 int uvm_map_extract __P((vm_map_t, vaddr_t, vsize_t, 144 vm_map_t, vaddr_t *, int)); 145 vm_map_entry_t uvm_map_findspace __P((vm_map_t, vaddr_t, vsize_t, 146 vaddr_t *, struct uvm_object *, vaddr_t, 147 boolean_t)); 148 int uvm_map_inherit __P((vm_map_t, vaddr_t, vaddr_t, 149 vm_inherit_t)); 150 int uvm_map_advice __P((vm_map_t, vaddr_t, vaddr_t, int)); 151 void uvm_map_init __P((void)); 152 boolean_t uvm_map_lookup_entry __P((vm_map_t, vaddr_t, 153 vm_map_entry_t *)); 154 MAP_INLINE 155 void uvm_map_reference __P((vm_map_t)); 156 int uvm_map_replace __P((vm_map_t, vaddr_t, vaddr_t, 157 vm_map_entry_t, int)); 158 int uvm_map_reserve __P((vm_map_t, vsize_t, vaddr_t, 159 vaddr_t *)); 160 void uvm_map_setup __P((vm_map_t, vaddr_t, 161 vaddr_t, int)); 162 int uvm_map_submap __P((vm_map_t, vaddr_t, 163 vaddr_t, vm_map_t)); 164 MAP_INLINE 165 int uvm_unmap __P((vm_map_t, vaddr_t, vaddr_t)); 166 void uvm_unmap_detach __P((vm_map_entry_t,int)); 167 int uvm_unmap_remove __P((vm_map_t, vaddr_t, vaddr_t, 168 vm_map_entry_t *)); 169 170 struct vmspace *uvmspace_fork __P((struct vmspace *)); 171 172 #endif /* _UVM_UVM_MAP_H_ */ 173