RTEMS CPU Kit with SuperCore  4.11.3
vm_param.h
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1 /*
2  * Copyright (c) 1991, 1993
3  * The Regents of the University of California. All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * The Mach Operating System project at Carnegie-Mellon University.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  * 4. Neither the name of the University nor the names of its contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * from: @(#)vm_param.h 8.1 (Berkeley) 6/11/93
33  *
34  *
35  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
36  * All rights reserved.
37  *
38  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
39  *
40  * Permission to use, copy, modify and distribute this software and
41  * its documentation is hereby granted, provided that both the copyright
42  * notice and this permission notice appear in all copies of the
43  * software, derivative works or modified versions, and any portions
44  * thereof, and that both notices appear in supporting documentation.
45  *
46  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
47  * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
48  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
49  *
50  * Carnegie Mellon requests users of this software to return to
51  *
52  * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
53  * School of Computer Science
54  * Carnegie Mellon University
55  * Pittsburgh PA 15213-3890
56  *
57  * any improvements or extensions that they make and grant Carnegie the
58  * rights to redistribute these changes.
59  *
60  * $FreeBSD: src/sys/vm/vm_param.h,v 1.21 2005/01/07 02:29:27 imp Exp $
61  */
62 
63 
64 /*
65  * Machine independent virtual memory parameters.
66  */
67 
68 #ifndef _VM_PARAM_
69 #define _VM_PARAM_
70 
71 #include <machine/vmparam.h>
72 
73 /*
74  * CTL_VM identifiers
75  */
76 #define VM_TOTAL 1 /* struct vmtotal */
77 #define VM_METER VM_TOTAL/* deprecated, use VM_TOTAL */
78 #define VM_LOADAVG 2 /* struct loadavg */
79 #define VM_V_FREE_MIN 3 /* cnt.v_free_min */
80 #define VM_V_FREE_TARGET 4 /* cnt.v_free_target */
81 #define VM_V_FREE_RESERVED 5 /* cnt.v_free_reserved */
82 #define VM_V_INACTIVE_TARGET 6 /* cnt.v_inactive_target */
83 #define VM_V_CACHE_MIN 7 /* cnt.v_cache_max */
84 #define VM_V_CACHE_MAX 8 /* cnt.v_cache_min */
85 #define VM_V_PAGEOUT_FREE_MIN 9 /* cnt.v_pageout_free_min */
86 #define VM_PAGEOUT_ALGORITHM 10 /* pageout algorithm */
87 #define VM_SWAPPING_ENABLED 11 /* swapping enabled */
88 #define VM_MAXID 12 /* number of valid vm ids */
89 
90 #define CTL_VM_NAMES { \
91  { 0, 0 }, \
92  { "vmtotal", CTLTYPE_STRUCT }, \
93  { "loadavg", CTLTYPE_STRUCT }, \
94  { "v_free_min", CTLTYPE_INT }, \
95  { "v_free_target", CTLTYPE_INT }, \
96  { "v_free_reserved", CTLTYPE_INT }, \
97  { "v_inactive_target", CTLTYPE_INT }, \
98  { "v_cache_min", CTLTYPE_INT }, \
99  { "v_cache_max", CTLTYPE_INT }, \
100  { "v_pageout_free_min", CTLTYPE_INT}, \
101  { "pageout_algorithm", CTLTYPE_INT}, \
102  { "swapping_enabled", CTLTYPE_INT},\
103 }
104 
105 /*
106  * Return values from the VM routines.
107  */
108 #define KERN_SUCCESS 0
109 #define KERN_INVALID_ADDRESS 1
110 #define KERN_PROTECTION_FAILURE 2
111 #define KERN_NO_SPACE 3
112 #define KERN_INVALID_ARGUMENT 4
113 #define KERN_FAILURE 5
114 #define KERN_RESOURCE_SHORTAGE 6
115 #define KERN_NOT_RECEIVER 7
116 #define KERN_NO_ACCESS 8
117 
118 #ifndef ASSEMBLER
119 #ifdef _KERNEL
120 #define num_pages(x) \
121  ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
122 extern unsigned long maxtsiz;
123 extern unsigned long dfldsiz;
124 extern unsigned long maxdsiz;
125 extern unsigned long dflssiz;
126 extern unsigned long maxssiz;
127 extern unsigned long sgrowsiz;
128 #endif /* _KERNEL */
129 #endif /* ASSEMBLER */
130 #endif /* _VM_PARAM_ */
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