Annotation of sys/uvm/uvm_pmap.h, Revision 1.1.1.1
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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