1 /*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. 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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)vm.h 8.2 (Berkeley) 12/13/93 30 * @(#)vm_prot.h 8.1 (Berkeley) 6/11/93 31 * @(#)vm_inherit.h 8.1 (Berkeley) 6/11/93 32 * 33 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 34 * All rights reserved. 35 * 36 * Authors: Avadis Tevanian, Jr., Michael Wayne Young 37 * 38 * Permission to use, copy, modify and distribute this software and 39 * its documentation is hereby granted, provided that both the copyright 40 * notice and this permission notice appear in all copies of the 41 * software, derivative works or modified versions, and any portions 42 * thereof, and that both notices appear in supporting documentation. 43 * 44 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 45 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 46 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 47 * 48 * Carnegie Mellon requests users of this software to return to 49 * 50 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 51 * School of Computer Science 52 * Carnegie Mellon University 53 * Pittsburgh PA 15213-3890 54 * 55 * any improvements or extensions that they make and grant Carnegie the 56 * rights to redistribute these changes. 57 * 58 * $FreeBSD$ 59 */ 60 61 #ifndef VM_H 62 #define VM_H 63 64 typedef char vm_inherit_t; /* inheritance codes */ 65 66 #define VM_INHERIT_SHARE ((vm_inherit_t) 0) 67 #define VM_INHERIT_COPY ((vm_inherit_t) 1) 68 #define VM_INHERIT_NONE ((vm_inherit_t) 2) 69 #define VM_INHERIT_DEFAULT VM_INHERIT_COPY 70 71 typedef u_char vm_prot_t; /* protection codes */ 72 73 #define VM_PROT_NONE ((vm_prot_t) 0x00) 74 #define VM_PROT_READ ((vm_prot_t) 0x01) 75 #define VM_PROT_WRITE ((vm_prot_t) 0x02) 76 #define VM_PROT_EXECUTE ((vm_prot_t) 0x04) 77 #define VM_PROT_OVERRIDE_WRITE ((vm_prot_t) 0x08) /* copy-on-write */ 78 79 #define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) 80 #define VM_PROT_RW (VM_PROT_READ|VM_PROT_WRITE) 81 #define VM_PROT_DEFAULT VM_PROT_ALL 82 83 enum obj_type { OBJT_DEFAULT, OBJT_SWAP, OBJT_VNODE, OBJT_DEVICE, OBJT_PHYS, 84 OBJT_DEAD }; 85 typedef u_char objtype_t; 86 87 union vm_map_object; 88 typedef union vm_map_object vm_map_object_t; 89 90 struct vm_map_entry; 91 typedef struct vm_map_entry *vm_map_entry_t; 92 93 struct vm_map; 94 typedef struct vm_map *vm_map_t; 95 96 struct vm_object; 97 typedef struct vm_object *vm_object_t; 98 99 #ifndef _KERNEL 100 /* 101 * This is defined in <sys/types.h> for the kernel so that non-vm kernel 102 * sources (mainly Mach-derived ones such as ddb) don't have to include 103 * vm stuff. Defining it there for applications might break things. 104 * Define it here for "applications" that include vm headers (e.g., 105 * genassym). 106 */ 107 typedef int boolean_t; 108 109 /* 110 * This is defined in <sys/types.h> for the kernel so that vnode_if.h 111 * doesn't have to include <vm/vm.h>. 112 */ 113 struct vm_page; 114 typedef struct vm_page *vm_page_t; 115 #endif /* _KERNEL */ 116 117 struct vm_reserv; 118 typedef struct vm_reserv *vm_reserv_t; 119 120 /* 121 * Information passed from the machine-independant VM initialization code 122 * for use by machine-dependant code (mainly for MMU support) 123 */ 124 struct kva_md_info { 125 vm_offset_t buffer_sva; 126 vm_offset_t buffer_eva; 127 vm_offset_t clean_sva; 128 vm_offset_t clean_eva; 129 vm_offset_t pager_sva; 130 vm_offset_t pager_eva; 131 }; 132 133 extern struct kva_md_info kmi; 134 extern void vm_ksubmap_init(struct kva_md_info *); 135 136 #endif /* VM_H */ 137 138