1 /* $NetBSD: uvm_pmap.h,v 1.10 2002/04/10 00:40:45 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * The Mach Operating System project at Carnegie-Mellon University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)pmap.h 8.1 (Berkeley) 6/11/93 39 * 40 * 41 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 42 * All rights reserved. 43 * 44 * Author: Avadis Tevanian, Jr. 45 * 46 * Permission to use, copy, modify and distribute this software and 47 * its documentation is hereby granted, provided that both the copyright 48 * notice and this permission notice appear in all copies of the 49 * software, derivative works or modified versions, and any portions 50 * thereof, and that both notices appear in supporting documentation. 51 * 52 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 53 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 54 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 55 * 56 * Carnegie Mellon requests users of this software to return to 57 * 58 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 59 * School of Computer Science 60 * Carnegie Mellon University 61 * Pittsburgh PA 15213-3890 62 * 63 * any improvements or extensions that they make and grant Carnegie the 64 * rights to redistribute these changes. 65 */ 66 67 /* 68 * Machine address mapping definitions -- machine-independent 69 * section. [For machine-dependent section, see "machine/pmap.h".] 70 */ 71 72 #ifndef _PMAP_VM_ 73 #define _PMAP_VM_ 74 75 struct proc; /* for pmap_activate()/pmap_deactivate() proto */ 76 77 /* 78 * Each machine dependent implementation is expected to 79 * keep certain statistics. They may do this anyway they 80 * so choose, but are expected to return the statistics 81 * in the following structure. 82 */ 83 struct pmap_statistics { 84 long resident_count; /* # of pages mapped (total)*/ 85 long wired_count; /* # of pages wired */ 86 }; 87 typedef struct pmap_statistics *pmap_statistics_t; 88 89 #ifdef _KERNEL 90 #include <machine/pmap.h> 91 #endif 92 93 /* 94 * Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_* 95 * bits, used to indicate the access type that was made (to seed modified 96 * and referenced information). 97 */ 98 #define PMAP_WIRED 0x00000010 /* wired mapping */ 99 #define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */ 100 101 #ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */ 102 #ifdef _KERNEL 103 __BEGIN_DECLS 104 #if !defined(pmap_kernel) 105 struct pmap *pmap_kernel __P((void)); 106 #endif 107 108 void pmap_activate __P((struct proc *)); 109 void pmap_deactivate __P((struct proc *)); 110 void pmap_unwire __P((pmap_t, vaddr_t)); 111 112 #if !defined(pmap_clear_modify) 113 boolean_t pmap_clear_modify __P((struct vm_page *)); 114 #endif 115 #if !defined(pmap_clear_reference) 116 boolean_t pmap_clear_reference __P((struct vm_page *)); 117 #endif 118 119 void pmap_collect __P((pmap_t)); 120 void pmap_copy __P((pmap_t, 121 pmap_t, vaddr_t, vsize_t, vaddr_t)); 122 #if !defined(pmap_copy_page) 123 void pmap_copy_page __P((paddr_t, paddr_t)); 124 #endif 125 struct pmap *pmap_create __P((void)); 126 void pmap_destroy __P((pmap_t)); 127 int pmap_enter __P((pmap_t, 128 vaddr_t, paddr_t, vm_prot_t, int)); 129 boolean_t pmap_extract __P((pmap_t, vaddr_t, paddr_t *)); 130 #if defined(PMAP_GROWKERNEL) 131 vaddr_t pmap_growkernel __P((vaddr_t)); 132 #endif 133 134 void pmap_init __P((void)); 135 136 void pmap_kenter_pa __P((vaddr_t, paddr_t, vm_prot_t)); 137 void pmap_kremove __P((vaddr_t, vsize_t)); 138 #if !defined(pmap_is_modified) 139 boolean_t pmap_is_modified __P((struct vm_page *)); 140 #endif 141 #if !defined(pmap_is_referenced) 142 boolean_t pmap_is_referenced __P((struct vm_page *)); 143 #endif 144 145 void pmap_page_protect __P((struct vm_page *, vm_prot_t)); 146 147 #if !defined(pmap_phys_address) 148 paddr_t pmap_phys_address __P((int)); 149 #endif 150 void pmap_protect __P((pmap_t, 151 vaddr_t, vaddr_t, vm_prot_t)); 152 void pmap_reference __P((pmap_t)); 153 void pmap_remove __P((pmap_t, vaddr_t, vaddr_t)); 154 void pmap_update __P((pmap_t)); 155 #if !defined(pmap_resident_count) 156 long pmap_resident_count __P((pmap_t)); 157 #endif 158 #if !defined(pmap_wired_count) 159 long pmap_wired_count __P((pmap_t)); 160 #endif 161 #if !defined(pmap_zero_page) 162 void pmap_zero_page __P((paddr_t)); 163 #endif 164 165 void pmap_virtual_space __P((vaddr_t *, vaddr_t *)); 166 #if defined(PMAP_STEAL_MEMORY) 167 vaddr_t pmap_steal_memory __P((vsize_t, vaddr_t *, vaddr_t *)); 168 #endif 169 170 #if defined(PMAP_FORK) 171 void pmap_fork __P((pmap_t, pmap_t)); 172 #endif 173 __END_DECLS 174 #endif /* kernel*/ 175 #endif /* PMAP_EXCLUDE_DECLS */ 176 177 #endif /* _PMAP_VM_ */ 178