1 /*        $NetBSD: uvm.h,v 1.2 2018/03/15 03:22:23 christos Exp $     */
2 
3 /*-
4  * Copyright (c) 2018 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
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.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _COMPAT_SYS_UVM_H_
33 #define _COMPAT_SYS_UVM_H_
34 
35 /*
36  * NetBSD 1.3 swapctl(SWAP_STATS, ...) swapent structure; uses 32 bit
37  * dev_t and has no se_path[] member.
38  */
39 struct swapent13 {
40           int32_t   se13_dev;           /* device id */
41           int       se13_flags;                   /* flags */
42           int       se13_nblks;                   /* total blocks */
43           int       se13_inuse;                   /* blocks in use */
44           int       se13_priority;                /* priority of this device */
45 };
46 
47 /*
48  * NetBSD 5.0 swapctl(SWAP_STATS, ...) swapent structure; uses 32 bit
49  * dev_t.
50  */
51 struct swapent50 {
52           int32_t   se50_dev;           /* device id */
53           int       se50_flags;                   /* flags */
54           int       se50_nblks;                   /* total blocks */
55           int       se50_inuse;                   /* blocks in use */
56           int       se50_priority;                /* priority of this device */
57           char      se50_path[PATH_MAX+1];        /* path name */
58 };
59 
60 __BEGIN_DECLS
61 
62 void uvm_13_init(void);
63 void uvm_50_init(void);
64 void uvm_13_fini(void);
65 void uvm_50_fini(void);
66 
67 struct sys_swapctl_args;
68 
69 extern int (*uvm_swap_stats13)(const struct sys_swapctl_args *, register_t *);
70 extern int (*uvm_swap_stats50)(const struct sys_swapctl_args *, register_t *);
71 
72 __END_DECLS
73 
74 #endif /* _COMPAT_SYS_UVM_H_ */
75