Annotation of src/sys/uvm/uvm_map.h, Revision 1.17
1.17 ! simonb 1: /* $NetBSD: uvm_map.h,v 1.16 2000/03/26 20:54:47 kleink Exp $ */
1.1 mrg 2:
3: /*
4: * Copyright (c) 1997 Charles D. Cranor and Washington University.
5: * Copyright (c) 1991, 1993, The Regents of the University of California.
6: *
7: * All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * The Mach Operating System project at Carnegie-Mellon University.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by Charles D. Cranor,
23: * Washington University, the University of California, Berkeley and
24: * its contributors.
25: * 4. Neither the name of the University nor the names of its contributors
26: * may be used to endorse or promote products derived from this software
27: * without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39: * SUCH DAMAGE.
40: *
41: * @(#)vm_map.h 8.3 (Berkeley) 3/15/94
1.4 mrg 42: * from: Id: uvm_map.h,v 1.1.2.3 1998/02/07 01:16:55 chs Exp
1.1 mrg 43: *
44: *
45: * Copyright (c) 1987, 1990 Carnegie-Mellon University.
46: * All rights reserved.
47: *
48: * Permission to use, copy, modify and distribute this software and
49: * its documentation is hereby granted, provided that both the copyright
50: * notice and this permission notice appear in all copies of the
51: * software, derivative works or modified versions, and any portions
52: * thereof, and that both notices appear in supporting documentation.
53: *
54: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
55: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
56: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
57: *
58: * Carnegie Mellon requests users of this software to return to
59: *
60: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
61: * School of Computer Science
62: * Carnegie Mellon University
63: * Pittsburgh PA 15213-3890
64: *
65: * any improvements or extensions that they make and grant Carnegie the
66: * rights to redistribute these changes.
67: */
68:
1.5 perry 69: #ifndef _UVM_UVM_MAP_H_
70: #define _UVM_UVM_MAP_H_
71:
1.1 mrg 72: /*
73: * uvm_map.h
74: */
75:
1.15 thorpej 76: #ifdef _KERNEL
77:
1.1 mrg 78: /*
79: * macros
80: */
81:
82: /*
83: * UVM_MAP_CLIP_START: ensure that the entry begins at or after
84: * the starting address, if it doesn't we split the entry.
85: *
86: * => map must be locked by caller
87: */
88:
89: #define UVM_MAP_CLIP_START(MAP,ENTRY,VA) { \
90: if ((VA) > (ENTRY)->start) uvm_map_clip_start(MAP,ENTRY,VA); }
91:
92: /*
93: * UVM_MAP_CLIP_END: ensure that the entry ends at or before
94: * the ending address, if it does't we split the entry.
95: *
96: * => map must be locked by caller
97: */
98:
99: #define UVM_MAP_CLIP_END(MAP,ENTRY,VA) { \
100: if ((VA) < (ENTRY)->end) uvm_map_clip_end(MAP,ENTRY,VA); }
101:
102: /*
103: * extract flags
104: */
105: #define UVM_EXTRACT_REMOVE 0x1 /* remove mapping from old map */
106: #define UVM_EXTRACT_CONTIG 0x2 /* try to keep it contig */
107: #define UVM_EXTRACT_QREF 0x4 /* use quick refs */
108: #define UVM_EXTRACT_FIXPROT 0x8 /* set prot to maxprot as we go */
109:
110:
111: /*
112: * handle inline options
113: */
114:
115: #ifdef UVM_MAP_INLINE
116: #define MAP_INLINE static __inline
117: #else
118: #define MAP_INLINE /* nothing */
119: #endif /* UVM_MAP_INLINE */
1.12 thorpej 120:
121: /*
122: * globals:
123: */
124:
125: #ifdef PMAP_GROWKERNEL
126: extern vaddr_t uvm_maxkaddr;
127: #endif
1.1 mrg 128:
129: /*
130: * protos: the following prototypes define the interface to vm_map
131: */
132:
133: MAP_INLINE
134: void uvm_map_deallocate __P((vm_map_t));
135:
1.7 eeh 136: int uvm_map_clean __P((vm_map_t, vaddr_t, vaddr_t, int));
1.16 kleink 137: void uvm_map_clip_start __P((vm_map_t, vm_map_entry_t, vaddr_t));
138: void uvm_map_clip_end __P((vm_map_t, vm_map_entry_t, vaddr_t));
1.1 mrg 139: MAP_INLINE
1.16 kleink 140: vm_map_t uvm_map_create __P((pmap_t, vaddr_t, vaddr_t, int));
1.7 eeh 141: int uvm_map_extract __P((vm_map_t, vaddr_t, vsize_t,
142: vm_map_t, vaddr_t *, int));
1.16 kleink 143: vm_map_entry_t uvm_map_findspace __P((vm_map_t, vaddr_t, vsize_t, vaddr_t *,
144: struct uvm_object *, voff_t, boolean_t));
145: int uvm_map_inherit __P((vm_map_t, vaddr_t, vaddr_t, vm_inherit_t));
1.13 mrg 146: int uvm_map_advice __P((vm_map_t, vaddr_t, vaddr_t, int));
1.1 mrg 147: void uvm_map_init __P((void));
1.16 kleink 148: boolean_t uvm_map_lookup_entry __P((vm_map_t, vaddr_t, vm_map_entry_t *));
1.1 mrg 149: MAP_INLINE
150: void uvm_map_reference __P((vm_map_t));
1.16 kleink 151: int uvm_map_replace __P((vm_map_t, vaddr_t, vaddr_t,
1.1 mrg 152: vm_map_entry_t, int));
1.16 kleink 153: int uvm_map_reserve __P((vm_map_t, vsize_t, vaddr_t, vaddr_t *));
154: void uvm_map_setup __P((vm_map_t, vaddr_t, vaddr_t, int));
155: int uvm_map_submap __P((vm_map_t, vaddr_t, vaddr_t, vm_map_t));
1.1 mrg 156: MAP_INLINE
1.10 chuck 157: int uvm_unmap __P((vm_map_t, vaddr_t, vaddr_t));
1.1 mrg 158: void uvm_unmap_detach __P((vm_map_entry_t,int));
1.7 eeh 159: int uvm_unmap_remove __P((vm_map_t, vaddr_t, vaddr_t,
1.10 chuck 160: vm_map_entry_t *));
1.15 thorpej 161:
162: #endif /* _KERNEL */
1.5 perry 163:
164: #endif /* _UVM_UVM_MAP_H_ */
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