uvm_pmap.h revision 1.15
1 /* $NetBSD: uvm_pmap.h,v 1.15 2003/08/07 16:34:50 agc 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)pmap.h 8.1 (Berkeley) 6/11/93 35 * 36 * 37 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 38 * All rights reserved. 39 * 40 * Author: Avadis Tevanian, Jr. 41 * 42 * Permission to use, copy, modify and distribute this software and 43 * its documentation is hereby granted, provided that both the copyright 44 * notice and this permission notice appear in all copies of the 45 * software, derivative works or modified versions, and any portions 46 * thereof, and that both notices appear in supporting documentation. 47 * 48 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 49 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 50 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 51 * 52 * Carnegie Mellon requests users of this software to return to 53 * 54 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 55 * School of Computer Science 56 * Carnegie Mellon University 57 * Pittsburgh PA 15213-3890 58 * 59 * any improvements or extensions that they make and grant Carnegie the 60 * rights to redistribute these changes. 61 */ 62 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 struct lwp; /* for pmap_activate()/pmap_deactivate() proto */ 72 73 /* 74 * Each machine dependent implementation is expected to 75 * keep certain statistics. They may do this anyway they 76 * so choose, but are expected to return the statistics 77 * in the following structure. 78 */ 79 struct pmap_statistics { 80 long resident_count; /* # of pages mapped (total)*/ 81 long wired_count; /* # of pages wired */ 82 }; 83 typedef struct pmap_statistics *pmap_statistics_t; 84 85 #ifdef _KERNEL 86 #include <machine/pmap.h> 87 #endif 88 89 /* 90 * Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_* 91 * bits, used to indicate the access type that was made (to seed modified 92 * and referenced information). 93 */ 94 #define PMAP_WIRED 0x00000010 /* wired mapping */ 95 #define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */ 96 97 #ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */ 98 #ifdef _KERNEL 99 __BEGIN_DECLS 100 #if !defined(pmap_kernel) 101 struct pmap *pmap_kernel __P((void)); 102 #endif 103 104 void pmap_activate __P((struct lwp *)); 105 void pmap_deactivate __P((struct lwp *)); 106 void pmap_unwire __P((pmap_t, vaddr_t)); 107 108 #if !defined(pmap_clear_modify) 109 boolean_t pmap_clear_modify __P((struct vm_page *)); 110 #endif 111 #if !defined(pmap_clear_reference) 112 boolean_t pmap_clear_reference __P((struct vm_page *)); 113 #endif 114 115 void pmap_collect __P((pmap_t)); 116 void pmap_copy __P((pmap_t, 117 pmap_t, vaddr_t, vsize_t, vaddr_t)); 118 #if !defined(pmap_copy_page) 119 void pmap_copy_page __P((paddr_t, paddr_t)); 120 #endif 121 struct pmap *pmap_create __P((void)); 122 void pmap_destroy __P((pmap_t)); 123 int pmap_enter __P((pmap_t, 124 vaddr_t, paddr_t, vm_prot_t, int)); 125 boolean_t pmap_extract __P((pmap_t, vaddr_t, paddr_t *)); 126 #if defined(PMAP_GROWKERNEL) 127 vaddr_t pmap_growkernel __P((vaddr_t)); 128 #endif 129 130 void pmap_init __P((void)); 131 132 void pmap_kenter_pa __P((vaddr_t, paddr_t, vm_prot_t)); 133 void pmap_kremove __P((vaddr_t, vsize_t)); 134 #if !defined(pmap_is_modified) 135 boolean_t pmap_is_modified __P((struct vm_page *)); 136 #endif 137 #if !defined(pmap_is_referenced) 138 boolean_t pmap_is_referenced __P((struct vm_page *)); 139 #endif 140 141 void pmap_page_protect __P((struct vm_page *, vm_prot_t)); 142 143 #if !defined(pmap_phys_address) 144 paddr_t pmap_phys_address __P((int)); 145 #endif 146 void pmap_protect __P((pmap_t, 147 vaddr_t, vaddr_t, vm_prot_t)); 148 void pmap_reference __P((pmap_t)); 149 void pmap_remove __P((pmap_t, vaddr_t, vaddr_t)); 150 void pmap_remove_all(struct pmap *); 151 void pmap_update __P((pmap_t)); 152 #if !defined(pmap_resident_count) 153 long pmap_resident_count __P((pmap_t)); 154 #endif 155 #if !defined(pmap_wired_count) 156 long pmap_wired_count __P((pmap_t)); 157 #endif 158 #if !defined(pmap_zero_page) 159 void pmap_zero_page __P((paddr_t)); 160 #endif 161 162 void pmap_virtual_space __P((vaddr_t *, vaddr_t *)); 163 #if defined(PMAP_STEAL_MEMORY) 164 vaddr_t pmap_steal_memory __P((vsize_t, vaddr_t *, vaddr_t *)); 165 #endif 166 167 #if defined(PMAP_FORK) 168 void pmap_fork __P((pmap_t, pmap_t)); 169 #endif 170 __END_DECLS 171 #endif /* kernel*/ 172 #endif /* PMAP_EXCLUDE_DECLS */ 173 174 #endif /* _PMAP_VM_ */ 175
Indexes created Tue Sep 30 10:09:55 GMT 2025