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e54456f5 MD |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM timer | |
3 | ||
4 | #if !defined(_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ) | |
5 | #define _TRACE_TIMER_H | |
6 | ||
7 | #include <linux/tracepoint.h> | |
8 | #include <linux/hrtimer.h> | |
9 | #include <linux/timer.h> | |
10 | ||
11 | DECLARE_EVENT_CLASS(timer_class, | |
12 | ||
13 | TP_PROTO(struct timer_list *timer), | |
14 | ||
15 | TP_ARGS(timer), | |
16 | ||
17 | TP_STRUCT__entry( | |
18 | __field( void *, timer ) | |
19 | ), | |
20 | ||
21 | TP_fast_assign( | |
22 | __entry->timer = timer; | |
23 | ), | |
24 | ||
25 | TP_printk("timer=%p", __entry->timer) | |
26 | ); | |
27 | ||
28 | /** | |
29 | * timer_init - called when the timer is initialized | |
30 | * @timer: pointer to struct timer_list | |
31 | */ | |
32 | DEFINE_EVENT(timer_class, timer_init, | |
33 | ||
34 | TP_PROTO(struct timer_list *timer), | |
35 | ||
36 | TP_ARGS(timer) | |
37 | ); | |
38 | ||
39 | /** | |
40 | * timer_start - called when the timer is started | |
41 | * @timer: pointer to struct timer_list | |
42 | * @expires: the timers expiry time | |
43 | */ | |
44 | TRACE_EVENT(timer_start, | |
45 | ||
46 | TP_PROTO(struct timer_list *timer, unsigned long expires), | |
47 | ||
48 | TP_ARGS(timer, expires), | |
49 | ||
50 | TP_STRUCT__entry( | |
51 | __field( void *, timer ) | |
52 | __field( void *, function ) | |
53 | __field( unsigned long, expires ) | |
54 | __field( unsigned long, now ) | |
55 | ), | |
56 | ||
57 | TP_fast_assign( | |
58 | __entry->timer = timer; | |
59 | __entry->function = timer->function; | |
60 | __entry->expires = expires; | |
61 | __entry->now = jiffies; | |
62 | ), | |
63 | ||
64 | TP_printk("timer=%p function=%pf expires=%lu [timeout=%ld]", | |
65 | __entry->timer, __entry->function, __entry->expires, | |
66 | (long)__entry->expires - __entry->now) | |
67 | ); | |
68 | ||
69 | /** | |
70 | * timer_expire_entry - called immediately before the timer callback | |
71 | * @timer: pointer to struct timer_list | |
72 | * | |
73 | * Allows to determine the timer latency. | |
74 | */ | |
75 | TRACE_EVENT(timer_expire_entry, | |
76 | ||
77 | TP_PROTO(struct timer_list *timer), | |
78 | ||
79 | TP_ARGS(timer), | |
80 | ||
81 | TP_STRUCT__entry( | |
82 | __field( void *, timer ) | |
83 | __field( unsigned long, now ) | |
84 | __field( void *, function) | |
85 | ), | |
86 | ||
87 | TP_fast_assign( | |
88 | __entry->timer = timer; | |
89 | __entry->now = jiffies; | |
90 | __entry->function = timer->function; | |
91 | ), | |
92 | ||
93 | TP_printk("timer=%p function=%pf now=%lu", __entry->timer, __entry->function,__entry->now) | |
94 | ); | |
95 | ||
96 | /** | |
97 | * timer_expire_exit - called immediately after the timer callback returns | |
98 | * @timer: pointer to struct timer_list | |
99 | * | |
100 | * When used in combination with the timer_expire_entry tracepoint we can | |
101 | * determine the runtime of the timer callback function. | |
102 | * | |
103 | * NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might | |
104 | * be invalid. We solely track the pointer. | |
105 | */ | |
106 | DEFINE_EVENT(timer_class, timer_expire_exit, | |
107 | ||
108 | TP_PROTO(struct timer_list *timer), | |
109 | ||
110 | TP_ARGS(timer) | |
111 | ); | |
112 | ||
113 | /** | |
114 | * timer_cancel - called when the timer is canceled | |
115 | * @timer: pointer to struct timer_list | |
116 | */ | |
117 | DEFINE_EVENT(timer_class, timer_cancel, | |
118 | ||
119 | TP_PROTO(struct timer_list *timer), | |
120 | ||
121 | TP_ARGS(timer) | |
122 | ); | |
123 | ||
124 | /** | |
125 | * hrtimer_init - called when the hrtimer is initialized | |
126 | * @timer: pointer to struct hrtimer | |
127 | * @clockid: the hrtimers clock | |
128 | * @mode: the hrtimers mode | |
129 | */ | |
130 | TRACE_EVENT(hrtimer_init, | |
131 | ||
132 | TP_PROTO(struct hrtimer *hrtimer, clockid_t clockid, | |
133 | enum hrtimer_mode mode), | |
134 | ||
135 | TP_ARGS(hrtimer, clockid, mode), | |
136 | ||
137 | TP_STRUCT__entry( | |
138 | __field( void *, hrtimer ) | |
139 | __field( clockid_t, clockid ) | |
140 | __field( enum hrtimer_mode, mode ) | |
141 | ), | |
142 | ||
143 | TP_fast_assign( | |
144 | __entry->hrtimer = hrtimer; | |
145 | __entry->clockid = clockid; | |
146 | __entry->mode = mode; | |
147 | ), | |
148 | ||
149 | TP_printk("hrtimer=%p clockid=%s mode=%s", __entry->hrtimer, | |
150 | __entry->clockid == CLOCK_REALTIME ? | |
151 | "CLOCK_REALTIME" : "CLOCK_MONOTONIC", | |
152 | __entry->mode == HRTIMER_MODE_ABS ? | |
153 | "HRTIMER_MODE_ABS" : "HRTIMER_MODE_REL") | |
154 | ); | |
155 | ||
156 | /** | |
157 | * hrtimer_start - called when the hrtimer is started | |
158 | * @timer: pointer to struct hrtimer | |
159 | */ | |
160 | TRACE_EVENT(hrtimer_start, | |
161 | ||
162 | TP_PROTO(struct hrtimer *hrtimer), | |
163 | ||
164 | TP_ARGS(hrtimer), | |
165 | ||
166 | TP_STRUCT__entry( | |
167 | __field( void *, hrtimer ) | |
168 | __field( void *, function ) | |
169 | __field( s64, expires ) | |
170 | __field( s64, softexpires ) | |
171 | ), | |
172 | ||
173 | TP_fast_assign( | |
174 | __entry->hrtimer = hrtimer; | |
175 | __entry->function = hrtimer->function; | |
176 | __entry->expires = hrtimer_get_expires(hrtimer).tv64; | |
177 | __entry->softexpires = hrtimer_get_softexpires(hrtimer).tv64; | |
178 | ), | |
179 | ||
180 | TP_printk("hrtimer=%p function=%pf expires=%llu softexpires=%llu", | |
181 | __entry->hrtimer, __entry->function, | |
182 | (unsigned long long)ktime_to_ns((ktime_t) { | |
183 | .tv64 = __entry->expires }), | |
184 | (unsigned long long)ktime_to_ns((ktime_t) { | |
185 | .tv64 = __entry->softexpires })) | |
186 | ); | |
187 | ||
188 | /** | |
189 | * htimmer_expire_entry - called immediately before the hrtimer callback | |
190 | * @timer: pointer to struct hrtimer | |
191 | * @now: pointer to variable which contains current time of the | |
192 | * timers base. | |
193 | * | |
194 | * Allows to determine the timer latency. | |
195 | */ | |
196 | TRACE_EVENT(hrtimer_expire_entry, | |
197 | ||
198 | TP_PROTO(struct hrtimer *hrtimer, ktime_t *now), | |
199 | ||
200 | TP_ARGS(hrtimer, now), | |
201 | ||
202 | TP_STRUCT__entry( | |
203 | __field( void *, hrtimer ) | |
204 | __field( s64, now ) | |
205 | __field( void *, function) | |
206 | ), | |
207 | ||
208 | TP_fast_assign( | |
209 | __entry->hrtimer = hrtimer; | |
210 | __entry->now = now->tv64; | |
211 | __entry->function = hrtimer->function; | |
212 | ), | |
213 | ||
214 | TP_printk("hrtimer=%p function=%pf now=%llu", __entry->hrtimer, __entry->function, | |
215 | (unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->now })) | |
216 | ); | |
217 | ||
218 | DECLARE_EVENT_CLASS(hrtimer_class, | |
219 | ||
220 | TP_PROTO(struct hrtimer *hrtimer), | |
221 | ||
222 | TP_ARGS(hrtimer), | |
223 | ||
224 | TP_STRUCT__entry( | |
225 | __field( void *, hrtimer ) | |
226 | ), | |
227 | ||
228 | TP_fast_assign( | |
229 | __entry->hrtimer = hrtimer; | |
230 | ), | |
231 | ||
232 | TP_printk("hrtimer=%p", __entry->hrtimer) | |
233 | ); | |
234 | ||
235 | /** | |
236 | * hrtimer_expire_exit - called immediately after the hrtimer callback returns | |
237 | * @timer: pointer to struct hrtimer | |
238 | * | |
239 | * When used in combination with the hrtimer_expire_entry tracepoint we can | |
240 | * determine the runtime of the callback function. | |
241 | */ | |
242 | DEFINE_EVENT(hrtimer_class, hrtimer_expire_exit, | |
243 | ||
244 | TP_PROTO(struct hrtimer *hrtimer), | |
245 | ||
246 | TP_ARGS(hrtimer) | |
247 | ); | |
248 | ||
249 | /** | |
250 | * hrtimer_cancel - called when the hrtimer is canceled | |
251 | * @hrtimer: pointer to struct hrtimer | |
252 | */ | |
253 | DEFINE_EVENT(hrtimer_class, hrtimer_cancel, | |
254 | ||
255 | TP_PROTO(struct hrtimer *hrtimer), | |
256 | ||
257 | TP_ARGS(hrtimer) | |
258 | ); | |
259 | ||
260 | /** | |
261 | * itimer_state - called when itimer is started or canceled | |
262 | * @which: name of the interval timer | |
263 | * @value: the itimers value, itimer is canceled if value->it_value is | |
264 | * zero, otherwise it is started | |
265 | * @expires: the itimers expiry time | |
266 | */ | |
267 | TRACE_EVENT(itimer_state, | |
268 | ||
269 | TP_PROTO(int which, const struct itimerval *const value, | |
270 | cputime_t expires), | |
271 | ||
272 | TP_ARGS(which, value, expires), | |
273 | ||
274 | TP_STRUCT__entry( | |
275 | __field( int, which ) | |
276 | __field( cputime_t, expires ) | |
277 | __field( long, value_sec ) | |
278 | __field( long, value_usec ) | |
279 | __field( long, interval_sec ) | |
280 | __field( long, interval_usec ) | |
281 | ), | |
282 | ||
283 | TP_fast_assign( | |
284 | __entry->which = which; | |
285 | __entry->expires = expires; | |
286 | __entry->value_sec = value->it_value.tv_sec; | |
287 | __entry->value_usec = value->it_value.tv_usec; | |
288 | __entry->interval_sec = value->it_interval.tv_sec; | |
289 | __entry->interval_usec = value->it_interval.tv_usec; | |
290 | ), | |
291 | ||
292 | TP_printk("which=%d expires=%llu it_value=%ld.%ld it_interval=%ld.%ld", | |
293 | __entry->which, (unsigned long long)__entry->expires, | |
294 | __entry->value_sec, __entry->value_usec, | |
295 | __entry->interval_sec, __entry->interval_usec) | |
296 | ); | |
297 | ||
298 | /** | |
299 | * itimer_expire - called when itimer expires | |
300 | * @which: type of the interval timer | |
301 | * @pid: pid of the process which owns the timer | |
302 | * @now: current time, used to calculate the latency of itimer | |
303 | */ | |
304 | TRACE_EVENT(itimer_expire, | |
305 | ||
306 | TP_PROTO(int which, struct pid *pid, cputime_t now), | |
307 | ||
308 | TP_ARGS(which, pid, now), | |
309 | ||
310 | TP_STRUCT__entry( | |
311 | __field( int , which ) | |
312 | __field( pid_t, pid ) | |
313 | __field( cputime_t, now ) | |
314 | ), | |
315 | ||
316 | TP_fast_assign( | |
317 | __entry->which = which; | |
318 | __entry->now = now; | |
319 | __entry->pid = pid_nr(pid); | |
320 | ), | |
321 | ||
322 | TP_printk("which=%d pid=%d now=%llu", __entry->which, | |
323 | (int) __entry->pid, (unsigned long long)__entry->now) | |
324 | ); | |
325 | ||
326 | #endif /* _TRACE_TIMER_H */ | |
327 | ||
328 | /* This part must be outside protection */ | |
329 | #include <trace/define_trace.h> |