1 /* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. 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 * from: @(#)pmap.h 8.1 (Berkeley) 6/11/93 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 * $FreeBSD: src/sys/vm/pmap.h,v 1.33.2.4 2002/03/06 22:44:24 silby Exp $ 65 * $DragonFly: src/sys/vm/pmap.h,v 1.29 2008/08/25 17:01:42 dillon Exp $ 66 */ 67 68 /* 69 * Machine address mapping definitions -- machine-independent 70 * section. [For machine-dependent section, see "machine/pmap.h".] 71 */ 72 73 #ifndef _VM_PMAP_H_ 74 #define _VM_PMAP_H_ 75 76 #ifndef _SYS_TYPES_H_ 77 #include <sys/types.h> 78 #endif 79 80 #ifndef _MACHINE_PMAP_H_ 81 #include <machine/pmap.h> 82 #endif 83 84 #ifdef _KERNEL 85 86 #ifndef _VM_VM_H_ 87 #include <vm/vm.h> 88 #endif 89 90 struct lwp; 91 struct proc; 92 struct thread; 93 struct vm_page; 94 struct vmspace; 95 struct vmspace_entry; 96 97 /* 98 * Most of these variables represent parameters set up by low level MD kernel 99 * boot code to be used by higher level MI initialization code to identify 100 * the portions of kernel and physical memory which are free for allocation. 101 * 102 * KvaStart/KvaEnd/ - Reserved Kernel Virtual Memory address space. 103 * KvaSize This range represents the entire KVA space but 104 * might omit certain special mapping areas. It is 105 * used to determine what kernel memory userland has 106 * access to. 107 * 108 * virtual_{start,end} - KVA space available for allocation, not including 109 * KVA space reserved during MD startup. Used by 110 * the KMEM subsystem, used to initialize kernel_map. 111 * 112 * phys_avail[] - Array of {start,end} physical addresses, not 113 * including physical memory allocated by MD startup 114 * code. Used to initialize the VM subsystem. 115 */ 116 extern vm_offset_t KvaStart; 117 extern vm_offset_t KvaEnd; 118 extern vm_offset_t KvaSize; 119 extern vm_offset_t virtual_start; 120 extern vm_offset_t virtual_end; 121 extern vm_paddr_t phys_avail[]; 122 123 static inline int 124 kva_p(const void *addr) 125 { 126 /* XXX: mapped? */ 127 return ((unsigned long)KvaStart <= (unsigned long)addr) && 128 ((unsigned long)addr < (unsigned long)KvaEnd); 129 } 130 131 void pmap_change_wiring (pmap_t, vm_offset_t, boolean_t); 132 void pmap_clear_modify (struct vm_page *m); 133 void pmap_clear_reference (struct vm_page *m); 134 void pmap_collect (void); 135 void pmap_copy (pmap_t, pmap_t, vm_offset_t, vm_size_t, 136 vm_offset_t); 137 void pmap_copy_page (vm_paddr_t, vm_paddr_t); 138 void pmap_copy_page_frag (vm_paddr_t, vm_paddr_t, size_t bytes); 139 void pmap_destroy (pmap_t); 140 void pmap_enter (pmap_t, vm_offset_t, struct vm_page *, 141 vm_prot_t, boolean_t); 142 vm_paddr_t pmap_extract (pmap_t pmap, vm_offset_t va); 143 void pmap_growkernel (vm_offset_t); 144 void pmap_init (void); 145 boolean_t pmap_is_modified (struct vm_page *m); 146 boolean_t pmap_ts_referenced (struct vm_page *m); 147 vm_offset_t pmap_map (vm_offset_t, vm_paddr_t, vm_paddr_t, int); 148 void pmap_object_init_pt (pmap_t pmap, vm_offset_t addr, 149 vm_prot_t prot, vm_object_t object, vm_pindex_t pindex, 150 vm_offset_t size, int pagelimit); 151 boolean_t pmap_page_exists_quick (pmap_t pmap, struct vm_page *m); 152 void pmap_page_protect (struct vm_page *m, vm_prot_t prot); 153 vm_paddr_t pmap_phys_address (vm_pindex_t); 154 void pmap_pinit (pmap_t); 155 void pmap_puninit (pmap_t); 156 void pmap_pinit0 (pmap_t); 157 void pmap_pinit2 (pmap_t); 158 void pmap_protect (pmap_t, vm_offset_t, vm_offset_t, vm_prot_t); 159 void pmap_qenter (vm_offset_t, struct vm_page **, int); 160 void pmap_qenter2 (vm_offset_t, struct vm_page **, int, 161 cpumask_t *); 162 void pmap_qremove (vm_offset_t, int); 163 void pmap_kenter (vm_offset_t, vm_paddr_t); 164 void pmap_kenter_quick (vm_offset_t, vm_paddr_t); 165 void pmap_kenter_sync (vm_offset_t); 166 void pmap_kenter_sync_quick (vm_offset_t); 167 void pmap_kmodify_rw(vm_offset_t va); 168 void pmap_kmodify_nc(vm_offset_t va); 169 void pmap_kremove (vm_offset_t); 170 void pmap_kremove_quick (vm_offset_t); 171 void pmap_reference (pmap_t); 172 void pmap_release (pmap_t); 173 void pmap_remove (pmap_t, vm_offset_t, vm_offset_t); 174 void pmap_remove_pages (pmap_t, vm_offset_t, vm_offset_t); 175 void pmap_zero_page (vm_paddr_t); 176 void pmap_page_assertzero (vm_paddr_t); 177 void pmap_zero_page_area (vm_paddr_t, int off, int size); 178 void pmap_prefault (pmap_t, vm_offset_t, vm_map_entry_t); 179 int pmap_mincore (pmap_t pmap, vm_offset_t addr); 180 void pmap_init_proc (struct proc *); 181 void pmap_init_thread (struct thread *td); 182 void pmap_dispose_proc (struct proc *p); 183 void pmap_replacevm (struct proc *, struct vmspace *, int); 184 void pmap_setlwpvm (struct lwp *, struct vmspace *); 185 186 vm_offset_t pmap_addr_hint (vm_object_t obj, vm_offset_t addr, vm_size_t size); 187 void *pmap_kenter_temporary (vm_paddr_t pa, int i); 188 void pmap_init2 (void); 189 190 #endif /* _KERNEL */ 191 192 #endif /* _VM_PMAP_H_ */ 193