pmap.h revision 113343
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: head/sys/vm/pmap.h 113343 2003-04-10 18:42:06Z jhb $ 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 * Each machine dependent implementation is expected to 76 * keep certain statistics. They may do this anyway they 77 * so choose, but are expected to return the statistics 78 * in the following structure. 79 */ 80struct pmap_statistics { 81 long resident_count; /* # of pages mapped (total) */ 82 long wired_count; /* # of pages wired */ 83}; 84typedef struct pmap_statistics *pmap_statistics_t; 85 86#include <machine/pmap.h> 87 88#ifdef _KERNEL 89struct proc; 90struct thread; 91 92/* 93 * Updates to kernel_vm_end are synchronized by the kernel_map's system mutex. 94 */ 95extern vm_offset_t kernel_vm_end; 96 97extern int pmap_pagedaemon_waken; 98 99void pmap_change_wiring(pmap_t, vm_offset_t, boolean_t); 100void pmap_clear_modify(vm_page_t m); 101void pmap_clear_reference(vm_page_t m); 102void pmap_copy(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t); 103void pmap_copy_page(vm_page_t, vm_page_t); 104void pmap_enter(pmap_t, vm_offset_t, vm_page_t, vm_prot_t, 105 boolean_t); 106vm_paddr_t pmap_extract(pmap_t pmap, vm_offset_t va); 107void pmap_growkernel(vm_offset_t); 108void pmap_init(vm_paddr_t, vm_paddr_t); 109boolean_t pmap_is_modified(vm_page_t m); 110boolean_t pmap_ts_referenced(vm_page_t m); 111vm_offset_t pmap_map(vm_offset_t *, vm_paddr_t, vm_paddr_t, int); 112void pmap_object_init_pt(pmap_t pmap, vm_offset_t addr, 113 vm_object_t object, vm_pindex_t pindex, vm_offset_t size, 114 int pagelimit); 115boolean_t pmap_page_exists_quick(pmap_t pmap, vm_page_t m); 116void pmap_page_protect(vm_page_t m, vm_prot_t prot); 117void pmap_pinit(pmap_t); 118void pmap_pinit0(pmap_t); 119void pmap_pinit2(pmap_t); 120void pmap_protect(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t); 121void pmap_qenter(vm_offset_t, vm_page_t *, int); 122void pmap_qremove(vm_offset_t, int); 123void pmap_release(pmap_t); 124void pmap_remove(pmap_t, vm_offset_t, vm_offset_t); 125void pmap_remove_all(vm_page_t m); 126void pmap_remove_pages(pmap_t, vm_offset_t, vm_offset_t); 127void pmap_zero_page(vm_page_t); 128void pmap_zero_page_area(vm_page_t, int off, int size); 129void pmap_zero_page_idle(vm_page_t); 130void pmap_prefault(pmap_t, vm_offset_t, vm_map_entry_t); 131int pmap_mincore(pmap_t pmap, vm_offset_t addr); 132void pmap_new_thread(struct thread *td, int pages); 133void pmap_dispose_thread(struct thread *td); 134void pmap_new_altkstack(struct thread *td, int pages); 135void pmap_dispose_altkstack(struct thread *td); 136void pmap_swapout_thread(struct thread *td); 137void pmap_swapin_thread(struct thread *td); 138void pmap_activate(struct thread *td); 139vm_offset_t pmap_addr_hint(vm_object_t obj, vm_offset_t addr, vm_size_t size); 140void *pmap_kenter_temporary(vm_offset_t pa, int i); 141void pmap_init2(void); 142#endif /* _KERNEL */ 143#endif /* _PMAP_VM_ */ 144