Annotation of sys/uvm/uvm_pmap.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: uvm_pmap.h,v 1.18 2005/04/04 23:40:05 miod Exp $ */
! 2: /* $NetBSD: uvm_pmap.h,v 1.1 2000/06/27 09:00:14 mrg Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1991, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to Berkeley by
! 9: * The Mach Operating System project at Carnegie-Mellon University.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: *
! 35: * @(#)pmap.h 8.1 (Berkeley) 6/11/93
! 36: *
! 37: *
! 38: * Copyright (c) 1987, 1990 Carnegie-Mellon University.
! 39: * All rights reserved.
! 40: *
! 41: * Author: Avadis Tevanian, Jr.
! 42: *
! 43: * Permission to use, copy, modify and distribute this software and
! 44: * its documentation is hereby granted, provided that both the copyright
! 45: * notice and this permission notice appear in all copies of the
! 46: * software, derivative works or modified versions, and any portions
! 47: * thereof, and that both notices appear in supporting documentation.
! 48: *
! 49: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 50: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 51: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 52: *
! 53: * Carnegie Mellon requests users of this software to return to
! 54: *
! 55: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 56: * School of Computer Science
! 57: * Carnegie Mellon University
! 58: * Pittsburgh PA 15213-3890
! 59: *
! 60: * any improvements or extensions that they make and grant Carnegie the
! 61: * rights to redistribute these changes.
! 62: */
! 63:
! 64: /*
! 65: * Machine address mapping definitions -- machine-independent
! 66: * section. [For machine-dependent section, see "machine/pmap.h".]
! 67: */
! 68:
! 69: #ifndef _PMAP_VM_
! 70: #define _PMAP_VM_
! 71:
! 72: struct proc; /* for pmap_activate()/pmap_deactivate() proto */
! 73:
! 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: */
! 80: struct pmap_statistics {
! 81: long resident_count; /* # of pages mapped (total)*/
! 82: long wired_count; /* # of pages wired */
! 83: };
! 84: typedef struct pmap_statistics *pmap_statistics_t;
! 85:
! 86: #include <machine/pmap.h>
! 87:
! 88: /*
! 89: * Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_*
! 90: * bits, used to indicate the access type that was made (to seed modified
! 91: * and referenced information).
! 92: */
! 93: #define PMAP_WIRED 0x00000010 /* wired mapping */
! 94: #define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */
! 95:
! 96: #ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
! 97: #ifdef _KERNEL
! 98: __BEGIN_DECLS
! 99: #ifndef pmap_activate
! 100: void pmap_activate(struct proc *);
! 101: #endif
! 102: #ifndef pmap_deactivate
! 103: void pmap_deactivate(struct proc *);
! 104: #endif
! 105: #ifndef pmap_unwire
! 106: void pmap_unwire(pmap_t, vaddr_t);
! 107: #endif
! 108:
! 109: #if !defined(pmap_clear_modify)
! 110: boolean_t pmap_clear_modify(struct vm_page *);
! 111: #endif
! 112: #if !defined(pmap_clear_reference)
! 113: boolean_t pmap_clear_reference(struct vm_page *);
! 114: #endif
! 115:
! 116: #if !defined(pmap_collect)
! 117: void pmap_collect(pmap_t);
! 118: #endif
! 119: #if !defined(pmap_copy)
! 120: void pmap_copy(pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t);
! 121: #endif
! 122: #if !defined(pmap_copy_page)
! 123: void pmap_copy_page(struct vm_page *, struct vm_page *);
! 124: #endif
! 125: struct pmap *pmap_create(void);
! 126: void pmap_destroy(pmap_t);
! 127: int pmap_enter(pmap_t,
! 128: vaddr_t, paddr_t, vm_prot_t, int);
! 129: boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
! 130: #if defined(PMAP_GROWKERNEL)
! 131: vaddr_t pmap_growkernel(vaddr_t);
! 132: #endif
! 133:
! 134: void pmap_init(void);
! 135:
! 136: void pmap_kenter_pa(vaddr_t, paddr_t, vm_prot_t);
! 137: void pmap_kremove(vaddr_t, vsize_t);
! 138: #if !defined(pmap_is_modified)
! 139: boolean_t pmap_is_modified(struct vm_page *);
! 140: #endif
! 141: #if !defined(pmap_is_referenced)
! 142: boolean_t pmap_is_referenced(struct vm_page *);
! 143: #endif
! 144:
! 145: void pmap_page_protect(struct vm_page *, vm_prot_t);
! 146:
! 147: #if !defined(pmap_phys_address)
! 148: paddr_t pmap_phys_address(int);
! 149: #endif
! 150: void pmap_protect(pmap_t,
! 151: vaddr_t, vaddr_t, vm_prot_t);
! 152: #if !defined(pmap_reference)
! 153: void pmap_reference(pmap_t);
! 154: #endif
! 155: #if !defined(pmap_remove)
! 156: void pmap_remove(pmap_t, vaddr_t, vaddr_t);
! 157: #endif
! 158: #if !defined(pmap_update)
! 159: void pmap_update(pmap_t);
! 160: #endif
! 161: #if !defined(pmap_zero_page)
! 162: void pmap_zero_page(struct vm_page *);
! 163: #endif
! 164:
! 165: void pmap_virtual_space(vaddr_t *, vaddr_t *);
! 166: #if defined(PMAP_STEAL_MEMORY)
! 167: vaddr_t pmap_steal_memory(vsize_t, vaddr_t *, vaddr_t *);
! 168: #endif
! 169:
! 170: #if defined(PMAP_FORK)
! 171: void pmap_fork(pmap_t, pmap_t);
! 172: #endif
! 173: __END_DECLS
! 174: #endif /* kernel*/
! 175: #endif /* PMAP_EXCLUDE_DECLS */
! 176:
! 177: #endif /* _PMAP_VM_ */
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