aboutsummaryrefslogtreecommitdiff
path: root/sys/sys/lockstat.h
blob: e53a7e4b88c857cc56ff58f3383a9198fc9ad482 (plain) (blame)
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
/*-
 * Copyright (c) 2008-2009 Stacey Son <sson@FreeBSD.org> 
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD$
 */
 
/*
 * DTrace lockstat provider definitions
 */

#ifndef _SYS_LOCKSTAT_H
#define	_SYS_LOCKSTAT_H

#ifdef _KERNEL

#include <sys/param.h>
#include <sys/queue.h>
#include <sys/sdt.h>

SDT_PROVIDER_DECLARE(lockstat);

SDT_PROBE_DECLARE(lockstat, , , adaptive__acquire);
SDT_PROBE_DECLARE(lockstat, , , adaptive__release);
SDT_PROBE_DECLARE(lockstat, , , adaptive__spin);
SDT_PROBE_DECLARE(lockstat, , , adaptive__block);

SDT_PROBE_DECLARE(lockstat, , , spin__acquire);
SDT_PROBE_DECLARE(lockstat, , , spin__release);
SDT_PROBE_DECLARE(lockstat, , , spin__spin);

SDT_PROBE_DECLARE(lockstat, , , rw__acquire);
SDT_PROBE_DECLARE(lockstat, , , rw__release);
SDT_PROBE_DECLARE(lockstat, , , rw__block);
SDT_PROBE_DECLARE(lockstat, , , rw__spin);
SDT_PROBE_DECLARE(lockstat, , , rw__upgrade);
SDT_PROBE_DECLARE(lockstat, , , rw__downgrade);

SDT_PROBE_DECLARE(lockstat, , , sx__acquire);
SDT_PROBE_DECLARE(lockstat, , , sx__release);
SDT_PROBE_DECLARE(lockstat, , , sx__block);
SDT_PROBE_DECLARE(lockstat, , , sx__spin);
SDT_PROBE_DECLARE(lockstat, , , sx__upgrade);
SDT_PROBE_DECLARE(lockstat, , , sx__downgrade);

SDT_PROBE_DECLARE(lockstat, , , thread__spin);

#define	LOCKSTAT_WRITER		0
#define	LOCKSTAT_READER		1

#ifdef KDTRACE_HOOKS

#define	LOCKSTAT_RECORD0(probe, lp)					\
	SDT_PROBE1(lockstat, , , probe, lp)

#define	LOCKSTAT_RECORD1(probe, lp, arg1)				\
	SDT_PROBE2(lockstat, , , probe, lp, arg1)

#define	LOCKSTAT_RECORD2(probe, lp, arg1, arg2)				\
	SDT_PROBE3(lockstat, , , probe, lp, arg1, arg2)

#define	LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3)			\
	SDT_PROBE4(lockstat, , , probe, lp, arg1, arg2, arg3)

#define	LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4)		\
	SDT_PROBE5(lockstat, , , probe, lp, arg1, arg2, arg3, arg4)

#define	LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) do { \
	lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l); \
	LOCKSTAT_RECORD0(probe, lp);					\
} while (0)

#define	LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) do {			\
	lock_profile_release_lock(&(lp)->lock_object);			\
	LOCKSTAT_RECORD0(probe, lp);					\
} while (0)

extern int lockstat_enabled;

struct lock_object;
extern uint64_t lockstat_nsecs(struct lock_object *);

#else /* !KDTRACE_HOOKS */

#define	LOCKSTAT_RECORD0(probe, lp)
#define	LOCKSTAT_RECORD1(probe, lp, arg1)
#define	LOCKSTAT_RECORD2(probe, lp, arg1, arg2)
#define	LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3)
#define	LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4)

#define	LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l)	\
	lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l)

#define	LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp)  			\
	lock_profile_release_lock(&(lp)->lock_object)

#endif /* !KDTRACE_HOOKS */
#endif /* _KERNEL */
#endif /* _SYS_LOCKSTAT_H */