uvm_map.h revision 1.13
1 /* $NetBSD: uvm_map.h,v 1.13 1999/05/23 06:27:13 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 5 * Copyright (c) 1991, 1993, The Regents of the University of California. 6 * 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * The Mach Operating System project at Carnegie-Mellon University. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by Charles D. Cranor, 23 * Washington University, the University of California, Berkeley and 24 * its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)vm_map.h 8.3 (Berkeley) 3/15/94 42 * from: Id: uvm_map.h,v 1.1.2.3 1998/02/07 01:16:55 chs Exp 43 * 44 * 45 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 46 * All rights reserved. 47 * 48 * Permission to use, copy, modify and distribute this software and 49 * its documentation is hereby granted, provided that both the copyright 50 * notice and this permission notice appear in all copies of the 51 * software, derivative works or modified versions, and any portions 52 * thereof, and that both notices appear in supporting documentation. 53 * 54 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 55 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 56 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 57 * 58 * Carnegie Mellon requests users of this software to return to 59 * 60 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 61 * School of Computer Science 62 * Carnegie Mellon University 63 * Pittsburgh PA 15213-3890 64 * 65 * any improvements or extensions that they make and grant Carnegie the 66 * rights to redistribute these changes. 67 */ 68 69 #ifndef _UVM_UVM_MAP_H_ 70 #define _UVM_UVM_MAP_H_ 71 72 /* 73 * uvm_map.h 74 */ 75 76 /* 77 * macros 78 */ 79 80 /* 81 * UVM_MAP_CLIP_START: ensure that the entry begins at or after 82 * the starting address, if it doesn't we split the entry. 83 * 84 * => map must be locked by caller 85 */ 86 87 #define UVM_MAP_CLIP_START(MAP,ENTRY,VA) { \ 88 if ((VA) > (ENTRY)->start) uvm_map_clip_start(MAP,ENTRY,VA); } 89 90 /* 91 * UVM_MAP_CLIP_END: ensure that the entry ends at or before 92 * the ending address, if it does't we split the entry. 93 * 94 * => map must be locked by caller 95 */ 96 97 #define UVM_MAP_CLIP_END(MAP,ENTRY,VA) { \ 98 if ((VA) < (ENTRY)->end) uvm_map_clip_end(MAP,ENTRY,VA); } 99 100 /* 101 * extract flags 102 */ 103 #define UVM_EXTRACT_REMOVE 0x1 /* remove mapping from old map */ 104 #define UVM_EXTRACT_CONTIG 0x2 /* try to keep it contig */ 105 #define UVM_EXTRACT_QREF 0x4 /* use quick refs */ 106 #define UVM_EXTRACT_FIXPROT 0x8 /* set prot to maxprot as we go */ 107 108 109 /* 110 * handle inline options 111 */ 112 113 #ifdef UVM_MAP_INLINE 114 #define MAP_INLINE static __inline 115 #else 116 #define MAP_INLINE /* nothing */ 117 #endif /* UVM_MAP_INLINE */ 118 119 /* 120 * globals: 121 */ 122 123 #ifdef PMAP_GROWKERNEL 124 extern vaddr_t uvm_maxkaddr; 125 #endif 126 127 /* 128 * protos: the following prototypes define the interface to vm_map 129 */ 130 131 MAP_INLINE 132 void uvm_map_deallocate __P((vm_map_t)); 133 134 int uvm_map_clean __P((vm_map_t, vaddr_t, vaddr_t, int)); 135 void uvm_map_clip_start __P((vm_map_t, 136 vm_map_entry_t, vaddr_t)); 137 void uvm_map_clip_end __P((vm_map_t, vm_map_entry_t, 138 vaddr_t)); 139 MAP_INLINE 140 vm_map_t uvm_map_create __P((pmap_t, vaddr_t, 141 vaddr_t, boolean_t)); 142 int uvm_map_extract __P((vm_map_t, vaddr_t, vsize_t, 143 vm_map_t, vaddr_t *, int)); 144 vm_map_entry_t uvm_map_findspace __P((vm_map_t, vaddr_t, vsize_t, 145 vaddr_t *, struct uvm_object *, vaddr_t, 146 boolean_t)); 147 int uvm_map_inherit __P((vm_map_t, vaddr_t, vaddr_t, 148 vm_inherit_t)); 149 int uvm_map_advice __P((vm_map_t, vaddr_t, vaddr_t, int)); 150 void uvm_map_init __P((void)); 151 boolean_t uvm_map_lookup_entry __P((vm_map_t, vaddr_t, 152 vm_map_entry_t *)); 153 MAP_INLINE 154 void uvm_map_reference __P((vm_map_t)); 155 int uvm_map_replace __P((vm_map_t, vaddr_t, vaddr_t, 156 vm_map_entry_t, int)); 157 int uvm_map_reserve __P((vm_map_t, vsize_t, vaddr_t, 158 vaddr_t *)); 159 void uvm_map_setup __P((vm_map_t, vaddr_t, 160 vaddr_t, boolean_t)); 161 int uvm_map_submap __P((vm_map_t, vaddr_t, 162 vaddr_t, vm_map_t)); 163 MAP_INLINE 164 int uvm_unmap __P((vm_map_t, vaddr_t, vaddr_t)); 165 void uvm_unmap_detach __P((vm_map_entry_t,int)); 166 int uvm_unmap_remove __P((vm_map_t, vaddr_t, vaddr_t, 167 vm_map_entry_t *)); 168 169 struct vmspace *uvmspace_fork __P((struct vmspace *)); 170 171 #endif /* _UVM_UVM_MAP_H_ */ 172
Indexes created Wed Sep 24 05:09:52 GMT 2025