1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/* $OpenBSD: pmap.h,v 1.17 2001/06/08 08:09:42 art Exp $ */
/* $NetBSD: pmap.h,v 1.16 1996/03/31 22:15:32 pk Exp $ */
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* The Mach Operating System project at Carnegie-Mellon University.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)pmap.h 8.1 (Berkeley) 6/11/93
*
*
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Avadis Tevanian, Jr.
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Machine address mapping definitions -- machine-independent
* section. [For machine-dependent section, see "machine/pmap.h".]
*/
#ifndef _PMAP_VM_
#define _PMAP_VM_
/*
* Each machine dependent implementation is expected to
* keep certain statistics. They may do this anyway they
* so choose, but are expected to return the statistics
* in the following structure.
*/
struct pmap_statistics {
long resident_count; /* # of pages mapped (total)*/
long wired_count; /* # of pages wired */
};
typedef struct pmap_statistics *pmap_statistics_t;
#include <machine/pmap.h>
/*
* PMAP_PGARG hack
*
* operations that take place on managed pages used to take PAs.
* this caused us to translate the PA back to a page (or pv_head).
* PMAP_NEW avoids this by passing the vm_page in (pv_head should be
* pointed to by vm_page (or be a part of it)).
*
* applies to: pmap_page_protect, pmap_is_referenced, pmap_is_modified,
* pmap_clear_reference, pmap_clear_modify.
*
* the latter two functions are boolean_t in PMAP_NEW. they return
* TRUE if something was cleared.
*/
#if defined(PMAP_NEW)
#define PMAP_PGARG(PG) (PG)
#else
#define PMAP_PGARG(PG) (VM_PAGE_TO_PHYS(PG))
#endif
#ifdef PMAP_NEW
/*
* Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_*
* bits, used to indicate the access type that was made (to seed modified
* and referenced information).
*/
#define PMAP_WIRED 0x00000010 /* wired mapping */
#define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */
#endif
#ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
#ifdef _KERNEL
__BEGIN_DECLS
void *pmap_bootstrap_alloc __P((int));
void pmap_unwire __P((pmap_t, vaddr_t));
#if defined(PMAP_NEW)
#if !defined(pmap_clear_modify)
boolean_t pmap_clear_modify __P((struct vm_page *));
#endif
#if !defined(pmap_clear_reference)
boolean_t pmap_clear_reference __P((struct vm_page *));
#endif
#else /* PMAP_NEW */
void pmap_clear_modify __P((paddr_t pa));
void pmap_clear_reference __P((paddr_t pa));
#endif /* PMAP_NEW */
void pmap_collect __P((pmap_t));
void pmap_copy __P((pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t));
void pmap_copy_page __P((paddr_t, paddr_t));
#if defined(PMAP_NEW)
struct pmap *pmap_create __P((void));
#else
pmap_t pmap_create __P((vsize_t));
#endif
void pmap_destroy __P((pmap_t));
#if defined(PMAP_NEW) && defined(__i386__)
#ifdef notyet
int pmap_enter __P((pmap_t, vaddr_t, paddr_t, vm_prot_t, int));
#else
int _pmap_enter __P((pmap_t, vaddr_t, paddr_t, vm_prot_t, int));
#define pmap_enter(pmap, va, pa, prot, wired, access_type) \
(_pmap_enter((pmap), (va), (pa), (prot), ((wired) ? PMAP_WIRED : 0)))
#endif
#else
void pmap_enter __P((pmap_t,
vaddr_t, paddr_t, vm_prot_t, boolean_t, vm_prot_t));
#endif
boolean_t pmap_extract __P((pmap_t, vaddr_t, paddr_t *));
#if defined(PMAP_NEW) && defined(PMAP_GROWKERNEL)
vaddr_t pmap_growkernel __P((vaddr_t));
#endif
#if !defined(MACHINE_NONCONTIG) && !defined(MACHINE_NEW_NONCONTIG)
void pmap_init __P((paddr_t, paddr_t));
#else
void pmap_init __P((void));
#endif
#if defined(PMAP_NEW)
void pmap_kenter_pa __P((vaddr_t, paddr_t, vm_prot_t));
void pmap_kenter_pgs __P((vaddr_t, struct vm_page **, int));
void pmap_kremove __P((vaddr_t, vsize_t));
#if !defined(pmap_is_modified)
boolean_t pmap_is_modified __P((struct vm_page *));
#endif
#if !defined(pmap_is_referenced)
boolean_t pmap_is_referenced __P((struct vm_page *));
#endif
#else /* PMAP_NEW */
boolean_t pmap_is_modified __P((paddr_t pa));
boolean_t pmap_is_referenced __P((paddr_t pa));
#endif /* PMAP_NEW */
#if !defined(MACHINE_NEW_NONCONTIG)
#ifndef pmap_page_index
int pmap_page_index __P((paddr_t));
#endif
#endif /* ! MACHINE_NEW_NONCONTIG */
#if defined(PMAP_NEW)
void pmap_page_protect __P((struct vm_page *, vm_prot_t));
#else
void pmap_page_protect __P((paddr_t, vm_prot_t));
#endif
#if !defined(pmap_phys_address)
paddr_t pmap_phys_address __P((int));
#endif
void pmap_pinit __P((pmap_t));
void pmap_protect __P((pmap_t,
vaddr_t, vaddr_t, vm_prot_t));
void pmap_reference __P((pmap_t));
void pmap_release __P((pmap_t));
void pmap_remove __P((pmap_t, vaddr_t, vaddr_t));
void pmap_update __P((void));
void pmap_zero_page __P((paddr_t));
#ifdef MACHINE_NONCONTIG
u_int pmap_free_pages __P((void));
boolean_t pmap_next_page __P((paddr_t *));
#endif
#if defined(MACHINE_NEW_NONCONTIG) && defined(PMAP_STEAL_MEMORY)
vaddr_t pmap_steal_memory __P((vsize_t, paddr_t *, paddr_t *));
#else
void pmap_virtual_space __P((vaddr_t *, vaddr_t *));
#endif
#if defined(PMAP_FORK)
void pmap_fork __P((pmap_t, pmap_t));
#endif
__END_DECLS
#endif /* kernel*/
#endif /* PMAP_EXCLUDE_DECLS */
#endif /* _PMAP_VM_ */
|
