proc->thread stage 4: rework the VFS and DEVICE subsystems to take thread
[dragonfly.git] / sys / vm / 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 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: @(#)vm_param.h 8.1 (Berkeley) 6/11/93
37 *
38 *
39 * Copyright (c) 1987, 1990 Carnegie-Mellon University.
40 * All rights reserved.
41 *
42 * Authors: Avadis Tevanian, Jr., Michael Wayne Young
43 *
44 * Permission to use, copy, modify and distribute this software and
45 * its documentation is hereby granted, provided that both the copyright
46 * notice and this permission notice appear in all copies of the
47 * software, derivative works or modified versions, and any portions
48 * thereof, and that both notices appear in supporting documentation.
49 *
50 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
51 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
52 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
53 *
54 * Carnegie Mellon requests users of this software to return to
55 *
56 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
57 * School of Computer Science
58 * Carnegie Mellon University
59 * Pittsburgh PA 15213-3890
60 *
61 * any improvements or extensions that they make and grant Carnegie the
62 * rights to redistribute these changes.
63 *
64 * $FreeBSD: src/sys/vm/vm_param.h,v 1.13.2.1 2001/11/03 01:41:10 ps Exp $
1de703da 65 * $DragonFly: src/sys/vm/vm_param.h,v 1.2 2003/06/17 04:29:00 dillon Exp $
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66 */
67
68/*
69 * Machine independent virtual memory parameters.
70 */
71
72#ifndef _VM_PARAM_
73#define _VM_PARAM_
74
75#include <machine/vmparam.h>
76
77/*
78 * CTL_VM identifiers
79 */
80#define VM_METER 1 /* struct vmmeter */
81#define VM_LOADAVG 2 /* struct loadavg */
82#define VM_V_FREE_MIN 3 /* cnt.v_free_min */
83#define VM_V_FREE_TARGET 4 /* cnt.v_free_target */
84#define VM_V_FREE_RESERVED 5 /* cnt.v_free_reserved */
85#define VM_V_INACTIVE_TARGET 6 /* cnt.v_inactive_target */
86#define VM_V_CACHE_MIN 7 /* cnt.v_cache_max */
87#define VM_V_CACHE_MAX 8 /* cnt.v_cache_min */
88#define VM_V_PAGEOUT_FREE_MIN 9 /* cnt.v_pageout_free_min */
89#define VM_PAGEOUT_ALGORITHM 10 /* pageout algorithm */
90#define VM_SWAPPING_ENABLED 11 /* swapping enabled */
91#define VM_MAXID 12 /* number of valid vm ids */
92
93#define CTL_VM_NAMES { \
94 { 0, 0 }, \
95 { "vmmeter", CTLTYPE_STRUCT }, \
96 { "loadavg", CTLTYPE_STRUCT }, \
97 { "v_free_min", CTLTYPE_INT }, \
98 { "v_free_target", CTLTYPE_INT }, \
99 { "v_free_reserved", CTLTYPE_INT }, \
100 { "v_inactive_target", CTLTYPE_INT }, \
101 { "v_cache_min", CTLTYPE_INT }, \
102 { "v_cache_max", CTLTYPE_INT }, \
103 { "v_pageout_free_min", CTLTYPE_INT}, \
104 { "pageout_algorithm", CTLTYPE_INT}, \
105 { "swapping_enabled", CTLTYPE_INT},\
106}
107
108/*
109 * Return values from the VM routines.
110 */
111#define KERN_SUCCESS 0
112#define KERN_INVALID_ADDRESS 1
113#define KERN_PROTECTION_FAILURE 2
114#define KERN_NO_SPACE 3
115#define KERN_INVALID_ARGUMENT 4
116#define KERN_FAILURE 5
117#define KERN_RESOURCE_SHORTAGE 6
118#define KERN_NOT_RECEIVER 7
119#define KERN_NO_ACCESS 8
120
121#ifndef ASSEMBLER
122#ifdef _KERNEL
123#define num_pages(x) \
124 ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
125extern u_quad_t maxtsiz;
126extern u_quad_t dfldsiz;
127extern u_quad_t maxdsiz;
128extern u_quad_t dflssiz;
129extern u_quad_t maxssiz;
130extern u_quad_t sgrowsiz;
131#endif /* _KERNEL */
132#endif /* ASSEMBLER */
133#endif /* _VM_PARAM_ */