Annotation of src/sys/uvm/uvm_pmap.h, Revision 1.21.32.3
1.21.32.3! yamt 1: /* $NetBSD: uvm_pmap.h,v 1.21.32.2 2009/08/19 18:48:36 yamt Exp $ */
1.1 mrg 2:
1.7 chs 3: /*
1.1 mrg 4: * Copyright (c) 1991, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * The Mach Operating System project at Carnegie-Mellon University.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
1.15 agc 18: * 3. Neither the name of the University nor the names of its contributors
1.1 mrg 19: * may be used to endorse or promote products derived from this software
20: * without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: *
34: * @(#)pmap.h 8.1 (Berkeley) 6/11/93
35: *
36: *
37: * Copyright (c) 1987, 1990 Carnegie-Mellon University.
38: * All rights reserved.
39: *
40: * Author: Avadis Tevanian, Jr.
1.7 chs 41: *
1.1 mrg 42: * Permission to use, copy, modify and distribute this software and
43: * its documentation is hereby granted, provided that both the copyright
44: * notice and this permission notice appear in all copies of the
45: * software, derivative works or modified versions, and any portions
46: * thereof, and that both notices appear in supporting documentation.
1.7 chs 47: *
48: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
49: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
1.1 mrg 50: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
1.7 chs 51: *
1.1 mrg 52: * Carnegie Mellon requests users of this software to return to
53: *
54: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
55: * School of Computer Science
56: * Carnegie Mellon University
57: * Pittsburgh PA 15213-3890
58: *
59: * any improvements or extensions that they make and grant Carnegie the
60: * rights to redistribute these changes.
61: */
62:
63: /*
64: * Machine address mapping definitions -- machine-independent
65: * section. [For machine-dependent section, see "machine/pmap.h".]
66: */
67:
68: #ifndef _PMAP_VM_
69: #define _PMAP_VM_
70:
1.12 thorpej 71: struct lwp; /* for pmap_activate()/pmap_deactivate() proto */
1.1 mrg 72:
1.21.32.1 yamt 73: struct pmap;
74: typedef struct pmap *pmap_t;
75:
76: extern struct pmap *const kernel_pmap_ptr;
77: #define pmap_kernel() kernel_pmap_ptr
78:
1.1 mrg 79: /*
80: * Each machine dependent implementation is expected to
81: * keep certain statistics. They may do this anyway they
82: * so choose, but are expected to return the statistics
83: * in the following structure.
84: */
85: struct pmap_statistics {
86: long resident_count; /* # of pages mapped (total)*/
87: long wired_count; /* # of pages wired */
88: };
89: typedef struct pmap_statistics *pmap_statistics_t;
90:
1.8 matt 91: #ifdef _KERNEL
1.1 mrg 92: #include <machine/pmap.h>
1.8 matt 93: #endif
1.1 mrg 94:
95: /*
96: * Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_*
97: * bits, used to indicate the access type that was made (to seed modified
98: * and referenced information).
1.21.32.2 yamt 99: *
100: * Flags marked [PA] are for pmap_kenter_pa() only. Flags marked [BOTH]
101: * apply to pmap_kenter_pa() and pmap_enter(). All other flags are valid
102: * for pmap_enter() only.
1.1 mrg 103: */
104: #define PMAP_WIRED 0x00000010 /* wired mapping */
105: #define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */
1.21.32.3! yamt 106: #if defined(PMAP_ENABLE_PMAP_KMPAGE)
1.21.32.2 yamt 107: #define PMAP_KMPAGE 0x00000040 /* [PA] page used for kernel memory */
1.21.32.3! yamt 108: #else
! 109: #define PMAP_KMPAGE 0x00000000
! 110: #endif /* PMAP_ENABLE_PMAP_KMPAGE */
1.1 mrg 111:
1.21.32.1 yamt 112: #define PMAP_MD_MASK 0xff000000 /* Machine-dependent bits */
113:
1.1 mrg 114: #ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
115: #ifdef _KERNEL
116: __BEGIN_DECLS
1.17 junyoung 117: void pmap_activate(struct lwp *);
118: void pmap_deactivate(struct lwp *);
119: void pmap_unwire(pmap_t, vaddr_t);
1.1 mrg 120:
121: #if !defined(pmap_clear_modify)
1.20 thorpej 122: bool pmap_clear_modify(struct vm_page *);
1.1 mrg 123: #endif
124: #if !defined(pmap_clear_reference)
1.20 thorpej 125: bool pmap_clear_reference(struct vm_page *);
1.1 mrg 126: #endif
127:
1.18 he 128: #if !defined(pmap_collect)
1.17 junyoung 129: void pmap_collect(pmap_t);
1.18 he 130: #endif
1.16 junyoung 131: #if !defined(pmap_copy)
1.17 junyoung 132: void pmap_copy(pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t);
1.16 junyoung 133: #endif
1.10 thorpej 134: #if !defined(pmap_copy_page)
1.17 junyoung 135: void pmap_copy_page(paddr_t, paddr_t);
1.10 thorpej 136: #endif
1.17 junyoung 137: struct pmap *pmap_create(void);
138: void pmap_destroy(pmap_t);
1.21.32.1 yamt 139: int pmap_enter(pmap_t, vaddr_t, paddr_t, vm_prot_t, u_int);
1.20 thorpej 140: bool pmap_extract(pmap_t, vaddr_t, paddr_t *);
1.1 mrg 141: #if defined(PMAP_GROWKERNEL)
1.17 junyoung 142: vaddr_t pmap_growkernel(vaddr_t);
1.1 mrg 143: #endif
144:
1.17 junyoung 145: void pmap_init(void);
1.1 mrg 146:
1.17 junyoung 147: void pmap_kenter_pa(vaddr_t, paddr_t, vm_prot_t);
148: void pmap_kremove(vaddr_t, vsize_t);
1.1 mrg 149: #if !defined(pmap_is_modified)
1.20 thorpej 150: bool pmap_is_modified(struct vm_page *);
1.1 mrg 151: #endif
152: #if !defined(pmap_is_referenced)
1.20 thorpej 153: bool pmap_is_referenced(struct vm_page *);
1.1 mrg 154: #endif
155:
1.17 junyoung 156: void pmap_page_protect(struct vm_page *, vm_prot_t);
1.1 mrg 157:
158: #if !defined(pmap_phys_address)
1.21 macallan 159: paddr_t pmap_phys_address(paddr_t);
1.1 mrg 160: #endif
1.17 junyoung 161: void pmap_protect(pmap_t, vaddr_t, vaddr_t, vm_prot_t);
1.18 he 162: #if !defined(pmap_reference)
1.17 junyoung 163: void pmap_reference(pmap_t);
1.18 he 164: #endif
165: #if !defined(pmap_remove)
1.17 junyoung 166: void pmap_remove(pmap_t, vaddr_t, vaddr_t);
1.18 he 167: #endif
1.17 junyoung 168: void pmap_remove_all(struct pmap *);
1.16 junyoung 169: #if !defined(pmap_update)
1.17 junyoung 170: void pmap_update(pmap_t);
1.16 junyoung 171: #endif
1.6 thorpej 172: #if !defined(pmap_resident_count)
1.17 junyoung 173: long pmap_resident_count(pmap_t);
1.6 thorpej 174: #endif
175: #if !defined(pmap_wired_count)
1.17 junyoung 176: long pmap_wired_count(pmap_t);
1.6 thorpej 177: #endif
1.10 thorpej 178: #if !defined(pmap_zero_page)
1.17 junyoung 179: void pmap_zero_page(paddr_t);
1.10 thorpej 180: #endif
1.1 mrg 181:
1.17 junyoung 182: void pmap_virtual_space(vaddr_t *, vaddr_t *);
1.1 mrg 183: #if defined(PMAP_STEAL_MEMORY)
1.17 junyoung 184: vaddr_t pmap_steal_memory(vsize_t, vaddr_t *, vaddr_t *);
1.1 mrg 185: #endif
186:
187: #if defined(PMAP_FORK)
1.17 junyoung 188: void pmap_fork(pmap_t, pmap_t);
1.1 mrg 189: #endif
190: __END_DECLS
191: #endif /* kernel*/
192: #endif /* PMAP_EXCLUDE_DECLS */
193:
194: #endif /* _PMAP_VM_ */
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