summaryrefslogtreecommitdiffstats
path: root/sys/vm/vm_param.h
blob: 3c1938a74784e0677156ed7b037cac3c8b478cf9 (plain)
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
/*-
 * 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.
 * 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.
 *
 *	from: @(#)vm_param.h	8.1 (Berkeley) 6/11/93
 *
 *
 * Copyright (c) 1987, 1990 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Authors: Avadis Tevanian, Jr., Michael Wayne Young
 *
 * 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.
 *
 * $FreeBSD$
 */

/*
 *	Machine independent virtual memory parameters.
 */

#ifndef	_VM_PARAM_
#define	_VM_PARAM_

#include <machine/vmparam.h>

/*
 * CTL_VM identifiers
 */
#define	VM_TOTAL		1	/* struct vmtotal */
#define	VM_METER                VM_TOTAL/* deprecated, use VM_TOTAL */
#define	VM_LOADAVG	 	2	/* struct loadavg */
#define VM_V_FREE_MIN		3	/* cnt.v_free_min */
#define VM_V_FREE_TARGET	4	/* cnt.v_free_target */
#define VM_V_FREE_RESERVED	5	/* cnt.v_free_reserved */
#define VM_V_INACTIVE_TARGET	6	/* cnt.v_inactive_target */
#define	VM_V_CACHE_MIN		7	/* cnt.v_cache_min */
#define	VM_V_CACHE_MAX		8	/* cnt.v_cache_max */
#define VM_V_PAGEOUT_FREE_MIN	9	/* cnt.v_pageout_free_min */
#define	VM_PAGEOUT_ALGORITHM	10	/* pageout algorithm */
#define VM_SWAPPING_ENABLED	11	/* swapping enabled */
#define	VM_MAXID		12	/* number of valid vm ids */

#define CTL_VM_NAMES { \
	{ 0, 0 }, \
	{ "vmtotal", CTLTYPE_STRUCT }, \
	{ "loadavg", CTLTYPE_STRUCT }, \
	{ "v_free_min", CTLTYPE_INT }, \
	{ "v_free_target", CTLTYPE_INT }, \
	{ "v_free_reserved", CTLTYPE_INT }, \
	{ "v_inactive_target", CTLTYPE_INT }, \
	{ "v_cache_min", CTLTYPE_INT }, \
	{ "v_cache_max", CTLTYPE_INT }, \
	{ "v_pageout_free_min", CTLTYPE_INT}, \
	{ "pageout_algorithm", CTLTYPE_INT}, \
	{ "swapping_enabled", CTLTYPE_INT},\
}

/*
 * Structure for swap device statistics
 */
#define XSWDEV_VERSION	1
struct xswdev {
	u_int	xsw_version;
	dev_t	xsw_dev;
	int	xsw_flags;
	int	xsw_nblks;
	int     xsw_used;
};

/*
 *	Return values from the VM routines.
 */
#define	KERN_SUCCESS		0
#define	KERN_INVALID_ADDRESS	1
#define	KERN_PROTECTION_FAILURE	2
#define	KERN_NO_SPACE		3
#define	KERN_INVALID_ARGUMENT	4
#define	KERN_FAILURE		5
#define	KERN_RESOURCE_SHORTAGE	6
#define	KERN_NOT_RECEIVER	7
#define	KERN_NO_ACCESS		8

#ifndef ASSEMBLER
#ifdef _KERNEL
#define num_pages(x) \
	((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
extern	unsigned long maxtsiz;
extern	unsigned long dfldsiz;
extern	unsigned long maxdsiz;
extern	unsigned long dflssiz;
extern	unsigned long maxssiz;
extern	unsigned long sgrowsiz;
#endif				/* _KERNEL */
#endif				/* ASSEMBLER */
#endif				/* _VM_PARAM_ */
OpenPOWER on IntegriCloud