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1	/ SPDX-License-Identifier: GPL-2.0 /
2	/*
3	* This program is free software; you can redistribute it and/or modify
4	* it under the terms of the GNU General Public License as published by
5	* the Free Software Foundation; either version 2 of the License, or
6	* (at your option) any later version.
7	*
8	* This program is distributed in the hope that it will be useful,
9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11	* GNU General Public License for more details.
12	*
13	* Authors: Waiman Long <[email protected]>
14	*/
15
16	#ifndef LOCK_EVENT
17	#define LOCK_EVENT(name) LOCKEVENT_ ## name,
18	#endif
19
20	#ifdef CONFIG_QUEUED_SPINLOCKS
21	#ifdef CONFIG_PARAVIRT_SPINLOCKS
22	/*
23	* Locking events for PV qspinlock.
24	*/
25	LOCK_EVENT(pv_hash_hops) / Average # of hops per hashing operation /
26	LOCK_EVENT(pv_kick_unlock) / # of vCPU kicks issued at unlock time /
27	LOCK_EVENT(pv_kick_wake) / # of vCPU kicks for pv_latency_wake /
28	LOCK_EVENT(pv_latency_kick) / Average latency (ns) of vCPU kick /
29	LOCK_EVENT(pv_latency_wake) / Average latency (ns) of kick-to-wakeup /
30	LOCK_EVENT(pv_lock_stealing) / # of lock stealing operations /
31	LOCK_EVENT(pv_spurious_wakeup) / # of spurious wakeups in non-head vCPUs /
32	LOCK_EVENT(pv_wait_again) / # of wait's after queue head vCPU kick /
33	LOCK_EVENT(pv_wait_early) / # of early vCPU wait's /
34	LOCK_EVENT(pv_wait_head) / # of vCPU wait's at the queue head /
35	LOCK_EVENT(pv_wait_node) / # of vCPU wait's at non-head queue node /
36	#endif /* CONFIG_PARAVIRT_SPINLOCKS */
37
38	/*
39	* Locking events for qspinlock
40	*
41	* Subtracting lock_use_node[234] from lock_slowpath will give you
42	* lock_use_node1.
43	*/
44	LOCK_EVENT(lock_pending) / # of locking ops via pending code /
45	LOCK_EVENT(lock_slowpath) / # of locking ops via MCS lock queue /
46	LOCK_EVENT(lock_use_node2) / # of locking ops that use 2nd percpu node /
47	LOCK_EVENT(lock_use_node3) / # of locking ops that use 3rd percpu node /
48	LOCK_EVENT(lock_use_node4) / # of locking ops that use 4th percpu node /
49	LOCK_EVENT(lock_no_node) / # of locking ops w/o using percpu node /
50	#endif /* CONFIG_QUEUED_SPINLOCKS */
51
52	/*
53	* Locking events for Resilient Queued Spin Lock
54	*/
55	LOCK_EVENT(rqspinlock_lock_timeout) / # of locking ops that timeout /
56
57	/*
58	* Locking events for rwsem
59	*/
60	LOCK_EVENT(rwsem_sleep_reader) / # of reader sleeps /
61	LOCK_EVENT(rwsem_sleep_writer) / # of writer sleeps /
62	LOCK_EVENT(rwsem_wake_reader) / # of reader wakeups /
63	LOCK_EVENT(rwsem_wake_writer) / # of writer wakeups /
64	LOCK_EVENT(rwsem_opt_lock) / # of opt-acquired write locks /
65	LOCK_EVENT(rwsem_opt_fail) / # of failed optspins /
66	LOCK_EVENT(rwsem_opt_nospin) / # of disabled optspins /
67	LOCK_EVENT(rwsem_rlock) / # of read locks acquired /
68	LOCK_EVENT(rwsem_rlock_steal) / # of read locks by lock stealing /
69	LOCK_EVENT(rwsem_rlock_fast) / # of fast read locks acquired /
70	LOCK_EVENT(rwsem_rlock_fail) / # of failed read lock acquisitions /
71	LOCK_EVENT(rwsem_rlock_handoff) / # of read lock handoffs /
72	LOCK_EVENT(rwsem_wlock) / # of write locks acquired /
73	LOCK_EVENT(rwsem_wlock_fail) / # of failed write lock acquisitions /
74	LOCK_EVENT(rwsem_wlock_handoff) / # of write lock handoffs /
75
76	/*
77	* Locking events for rtlock_slowlock()
78	*/
79	LOCK_EVENT(rtlock_slowlock) / # of rtlock_slowlock() calls /
80	LOCK_EVENT(rtlock_slow_acq1) / # of locks acquired after wait_lock /
81	LOCK_EVENT(rtlock_slow_acq2) / # of locks acquired in for loop /
82	LOCK_EVENT(rtlock_slow_sleep) / # of sleeps /
83	LOCK_EVENT(rtlock_slow_wake) / # of wakeup's /
84
85	/*
86	* Locking events for rt_mutex_slowlock()
87	*/
88	LOCK_EVENT(rtmutex_slowlock) / # of rt_mutex_slowlock() calls /
89	LOCK_EVENT(rtmutex_slow_block) / # of rt_mutex_slowlock_block() calls /
90	LOCK_EVENT(rtmutex_slow_acq1) / # of locks acquired after wait_lock /
91	LOCK_EVENT(rtmutex_slow_acq2) / # of locks acquired at the end /
92	LOCK_EVENT(rtmutex_slow_acq3) / # of locks acquired in block() /*
93	LOCK_EVENT(rtmutex_slow_sleep) / # of sleeps /
94	LOCK_EVENT(rtmutex_slow_wake) / # of wakeup's /
95	LOCK_EVENT(rtmutex_deadlock) / # of rt_mutex_handle_deadlock()'s /
96
97	/*
98	* Locking events for lockdep
99	*/
100	LOCK_EVENT(lockdep_acquire)
101	LOCK_EVENT(lockdep_lock)
102	LOCK_EVENT(lockdep_nocheck)
103

lock_events_list.h