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1/* SPDX-License-Identifier: GPL-2.0 */2#undef TRACE_SYSTEM3#define TRACE_SYSTEM lock4 5#if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)6#define _TRACE_LOCK_H7 8#include <linux/sched.h>9#include <linux/tracepoint.h>10 11/* flags for lock:contention_begin */12#define LCB_F_SPIN (1U << 0)13#define LCB_F_READ (1U << 1)14#define LCB_F_WRITE (1U << 2)15#define LCB_F_RT (1U << 3)16#define LCB_F_PERCPU (1U << 4)17#define LCB_F_MUTEX (1U << 5)18 19 20#ifdef CONFIG_LOCKDEP21 22#include <linux/lockdep.h>23 24TRACE_EVENT(lock_acquire,25 26 TP_PROTO(struct lockdep_map *lock, unsigned int subclass,27 int trylock, int read, int check,28 struct lockdep_map *next_lock, unsigned long ip),29 30 TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),31 32 TP_STRUCT__entry(33 __field(unsigned int, flags)34 __string(name, lock->name)35 __field(void *, lockdep_addr)36 ),37 38 TP_fast_assign(39 __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);40 __assign_str(name);41 __entry->lockdep_addr = lock;42 ),43 44 TP_printk("%p %s%s%s", __entry->lockdep_addr,45 (__entry->flags & 1) ? "try " : "",46 (__entry->flags & 2) ? "read " : "",47 __get_str(name))48);49 50DECLARE_EVENT_CLASS(lock,51 52 TP_PROTO(struct lockdep_map *lock, unsigned long ip),53 54 TP_ARGS(lock, ip),55 56 TP_STRUCT__entry(57 __string( name, lock->name )58 __field( void *, lockdep_addr )59 ),60 61 TP_fast_assign(62 __assign_str(name);63 __entry->lockdep_addr = lock;64 ),65 66 TP_printk("%p %s", __entry->lockdep_addr, __get_str(name))67);68 69DEFINE_EVENT(lock, lock_release,70 71 TP_PROTO(struct lockdep_map *lock, unsigned long ip),72 73 TP_ARGS(lock, ip)74);75 76#ifdef CONFIG_LOCK_STAT77 78DEFINE_EVENT(lock, lock_contended,79 80 TP_PROTO(struct lockdep_map *lock, unsigned long ip),81 82 TP_ARGS(lock, ip)83);84 85DEFINE_EVENT(lock, lock_acquired,86 87 TP_PROTO(struct lockdep_map *lock, unsigned long ip),88 89 TP_ARGS(lock, ip)90);91 92#endif /* CONFIG_LOCK_STAT */93#endif /* CONFIG_LOCKDEP */94 95TRACE_EVENT(contention_begin,96 97 TP_PROTO(void *lock, unsigned int flags),98 99 TP_ARGS(lock, flags),100 101 TP_STRUCT__entry(102 __field(void *, lock_addr)103 __field(unsigned int, flags)104 ),105 106 TP_fast_assign(107 __entry->lock_addr = lock;108 __entry->flags = flags;109 ),110 111 TP_printk("%p (flags=%s)", __entry->lock_addr,112 __print_flags(__entry->flags, "|",113 { LCB_F_SPIN, "SPIN" },114 { LCB_F_READ, "READ" },115 { LCB_F_WRITE, "WRITE" },116 { LCB_F_RT, "RT" },117 { LCB_F_PERCPU, "PERCPU" },118 { LCB_F_MUTEX, "MUTEX" }119 ))120);121 122TRACE_EVENT(contention_end,123 124 TP_PROTO(void *lock, int ret),125 126 TP_ARGS(lock, ret),127 128 TP_STRUCT__entry(129 __field(void *, lock_addr)130 __field(int, ret)131 ),132 133 TP_fast_assign(134 __entry->lock_addr = lock;135 __entry->ret = ret;136 ),137 138 TP_printk("%p (ret=%d)", __entry->lock_addr, __entry->ret)139);140 141#endif /* _TRACE_LOCK_H */142 143/* This part must be outside protection */144#include <trace/define_trace.h>145