2 * Copyright (c) 2008-2009 Stacey Son <sson@FreeBSD.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * DTrace lockstat provider definitions
32 #ifndef _SYS_LOCKSTAT_H
33 #define _SYS_LOCKSTAT_H
37 #include <sys/param.h>
38 #include <sys/queue.h>
41 SDT_PROVIDER_DECLARE(lockstat);
43 SDT_PROBE_DECLARE(lockstat, , , adaptive__acquire);
44 SDT_PROBE_DECLARE(lockstat, , , adaptive__release);
45 SDT_PROBE_DECLARE(lockstat, , , adaptive__spin);
46 SDT_PROBE_DECLARE(lockstat, , , adaptive__block);
48 SDT_PROBE_DECLARE(lockstat, , , spin__acquire);
49 SDT_PROBE_DECLARE(lockstat, , , spin__release);
50 SDT_PROBE_DECLARE(lockstat, , , spin__spin);
52 SDT_PROBE_DECLARE(lockstat, , , rw__acquire);
53 SDT_PROBE_DECLARE(lockstat, , , rw__release);
54 SDT_PROBE_DECLARE(lockstat, , , rw__block);
55 SDT_PROBE_DECLARE(lockstat, , , rw__spin);
56 SDT_PROBE_DECLARE(lockstat, , , rw__upgrade);
57 SDT_PROBE_DECLARE(lockstat, , , rw__downgrade);
59 SDT_PROBE_DECLARE(lockstat, , , sx__acquire);
60 SDT_PROBE_DECLARE(lockstat, , , sx__release);
61 SDT_PROBE_DECLARE(lockstat, , , sx__block);
62 SDT_PROBE_DECLARE(lockstat, , , sx__spin);
63 SDT_PROBE_DECLARE(lockstat, , , sx__upgrade);
64 SDT_PROBE_DECLARE(lockstat, , , sx__downgrade);
66 SDT_PROBE_DECLARE(lockstat, , , thread__spin);
68 #define LOCKSTAT_WRITER 0
69 #define LOCKSTAT_READER 1
71 extern volatile int lockstat_enabled;
75 #define LOCKSTAT_RECORD0(probe, lp) \
76 SDT_PROBE1(lockstat, , , probe, lp)
78 #define LOCKSTAT_RECORD1(probe, lp, arg1) \
79 SDT_PROBE2(lockstat, , , probe, lp, arg1)
81 #define LOCKSTAT_RECORD2(probe, lp, arg1, arg2) \
82 SDT_PROBE3(lockstat, , , probe, lp, arg1, arg2)
84 #define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3) \
85 SDT_PROBE4(lockstat, , , probe, lp, arg1, arg2, arg3)
87 #define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4) \
88 SDT_PROBE5(lockstat, , , probe, lp, arg1, arg2, arg3, arg4)
90 #define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) do { \
91 lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l); \
92 LOCKSTAT_RECORD0(probe, lp); \
95 #define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) do { \
96 lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l); \
97 LOCKSTAT_RECORD1(probe, lp, a); \
100 #define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) do { \
101 lock_profile_release_lock(&(lp)->lock_object); \
102 LOCKSTAT_RECORD0(probe, lp); \
105 #define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) do { \
106 lock_profile_release_lock(&(lp)->lock_object); \
107 LOCKSTAT_RECORD1(probe, lp, a); \
110 #define LOCKSTAT_PROFILE_ENABLED(probe) __predict_false(lockstat_enabled)
113 uint64_t lockstat_nsecs(struct lock_object *);
115 #else /* !KDTRACE_HOOKS */
117 #define LOCKSTAT_RECORD0(probe, lp)
118 #define LOCKSTAT_RECORD1(probe, lp, arg1)
119 #define LOCKSTAT_RECORD2(probe, lp, arg1, arg2)
120 #define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3)
121 #define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4)
123 #define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) \
124 lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l)
126 #define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) \
127 LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l)
129 #define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) \
130 lock_profile_release_lock(&(lp)->lock_object)
132 #define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) \
133 LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp)
135 #define LOCKSTAT_PROFILE_ENABLED(probe) 0
137 #endif /* !KDTRACE_HOOKS */
140 #endif /* _SYS_LOCKSTAT_H */