1 /* 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * The Mach Operating System project at Carnegie-Mellon University. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $Id: pmap.h,v 1.2 93/02/04 20:15:10 bill Exp Locker: bill $ 37 * 38 * 39 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 40 * All rights reserved. 41 * 42 * Author: Avadis Tevanian, Jr. 43 * 44 * Permission to use, copy, modify and distribute this software and 45 * its documentation is hereby granted, provided that both the copyright 46 * notice and this permission notice appear in all copies of the 47 * software, derivative works or modified versions, and any portions 48 * thereof, and that both notices appear in supporting documentation. 49 * 50 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 51 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 52 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 53 * 54 * Carnegie Mellon requests users of this software to return to 55 * 56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 57 * School of Computer Science 58 * Carnegie Mellon University 59 * Pittsburgh PA 15213-3890 60 * 61 * any improvements or extensions that they make and grant Carnegie the 62 * rights to redistribute these changes. 63 * 64 * Machine address mapping definitions -- machine-independent 65 * section. [For machine-dependent section, see "machine/pmap.h".] 66 */ 67 68 #ifndef _PMAP_VM_ 69 #define _PMAP_VM_ 70 71 /* 72 * Kinds of address mappings -- corresponds to application use. 73 */ 74 #define AM_NONE 0x0 /* no special meaning */ 75 #define AM_TEXT 0x1 /* sharable object mapping */ 76 #define AM_DATA 0x2 /* unshared mapping */ 77 #define AM_STACK 0x3 /* unshared stack mapping */ 78 79 #include <machine/pmap.h> 80 81 #ifdef KERNEL 82 void pmap_bootstrap(vm_offset_t firstaddr, vm_offset_t loadaddr); 83 void pmap_init(void /*vm_offset_t phys_start, vm_offset_t phys_end*/); 84 struct pmap 85 *pmap_create(vm_size_t size); 86 void pmap_destroy(pmap_t pmap); 87 void pmap_pinit(struct pmap *pmap); 88 void pmap_release(struct pmap *pmap); 89 vm_offset_t 90 pmap_map(vm_offset_t virt, vm_offset_t start, vm_offset_t end, 91 vm_prot_t prot); 92 void pmap_reference(struct pmap *pmap); 93 void pmap_remove(struct pmap *pmap, vm_offset_t sva, vm_offset_t eva); 94 void pmap_protect(struct pmap *pmap, vm_offset_t sva, vm_offset_t eva, 95 vm_prot_t prot); 96 void pmap_enter(struct pmap *pmap, vm_offset_t va, vm_offset_t pa, 97 vm_prot_t prot, boolean_t wired, int am); 98 void pmap_page_protect(vm_offset_t phys, vm_prot_t prot); 99 vm_offset_t 100 pmap_extract(struct pmap *pmap, vm_offset_t va); 101 void pmap_update(); 102 void pmap_collect(struct pmap *pmap); 103 /* needs forward declaration of struct pcb: 104 void pmap_activate(struct pmap *pmap, struct pcb *pcbp); */ 105 void pmap_copy(struct pmap *dst_pmap, struct pmap *src_pmap, 106 vm_offset_t dst_addr, vm_size_t len, vm_offset_t src_addr); 107 #ifndef pmap_kernel 108 pmap_t pmap_kernel(); 109 #endif 110 void pmap_pageable(struct pmap *pmap, vm_offset_t sva, vm_offset_t eva, 111 boolean_t pageable); 112 void pmap_change_wiring(struct pmap *pmap, vm_offset_t va, boolean_t wired); 113 void pmap_zero_page(vm_offset_t phys); 114 void pmap_copy_page(vm_offset_t src, vm_offset_t dst); 115 void pmap_clear_modify(vm_offset_t pa); 116 void pmap_clear_reference(vm_offset_t pa); 117 boolean_t 118 pmap_is_referenced(vm_offset_t pa); 119 boolean_t 120 pmap_is_modified(vm_offset_t pa); 121 vm_offset_t 122 pmap_phys_address(int ppn); 123 void pmap_changebit(vm_offset_t pa, int bit, boolean_t setem); 124 125 /* current functions not global could be static: */ 126 boolean_t 127 pmap_testbit(vm_offset_t pa, int bit); 128 void pmap_remove_all(vm_offset_t pa); 129 void pmap_copy_on_write(vm_offset_t pa); 130 131 /* current functions global should be static: */ 132 /* db_something() calls pmap_pte()! */ 133 /* static */ struct pte *pmap_pte(struct pmap *pmap, vm_offset_t va); 134 135 /* not implemented: 136 void pmap_redzone(); 137 boolean_t 138 pmap_access(); 139 void pmap_statistics(); 140 void pmap_deactivate(); 141 */ 142 143 extern pmap_t kernel_pmap; 144 #endif 145 146 #endif _PMAP_VM_ 147