Commit | Line | Data |
---|---|---|
9f36eaed | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
b87700e3 AG |
2 | #undef TRACE_SYSTEM |
3 | #define TRACE_SYSTEM rcu | |
4 | ||
3bc29f0a MD |
5 | #if !defined(LTTNG_TRACE_RCU_H) || defined(TRACE_HEADER_MULTI_READ) |
6 | #define LTTNG_TRACE_RCU_H | |
b87700e3 | 7 | |
6ec43db8 | 8 | #include <probes/lttng-tracepoint-event.h> |
b87700e3 AG |
9 | #include <linux/version.h> |
10 | ||
11 | /* | |
12 | * Tracepoint for start/end markers used for utilization calculations. | |
13 | * By convention, the string is of the following forms: | |
14 | * | |
15 | * "Start <activity>" -- Mark the start of the specified activity, | |
16 | * such as "context switch". Nesting is permitted. | |
17 | * "End <activity>" -- Mark the end of the specified activity. | |
18 | * | |
19 | * An "@" character within "<activity>" is a comment character: Data | |
20 | * reduction scripts will ignore the "@" and the remainder of the line. | |
21 | */ | |
3bc29f0a | 22 | LTTNG_TRACEPOINT_EVENT(rcu_utilization, |
b87700e3 | 23 | |
8e621312 MD |
24 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
25 | TP_PROTO(const char *s), | |
26 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 27 | TP_PROTO(char *s), |
8e621312 | 28 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
29 | |
30 | TP_ARGS(s), | |
31 | ||
f127e61e MD |
32 | TP_FIELDS( |
33 | ctf_string(s, s) | |
34 | ) | |
b87700e3 AG |
35 | ) |
36 | ||
37 | #ifdef CONFIG_RCU_TRACE | |
38 | ||
12318fb8 MD |
39 | #if defined(CONFIG_TREE_RCU) \ |
40 | || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) \ | |
41 | && defined(CONFIG_PREEMPT_RCU)) \ | |
42 | || defined(CONFIG_TREE_PREEMPT_RCU) | |
b87700e3 AG |
43 | |
44 | /* | |
45 | * Tracepoint for grace-period events: starting and ending a grace | |
46 | * period ("start" and "end", respectively), a CPU noting the start | |
47 | * of a new grace period or the end of an old grace period ("cpustart" | |
48 | * and "cpuend", respectively), a CPU passing through a quiescent | |
49 | * state ("cpuqs"), a CPU coming online or going offline ("cpuonl" | |
50 | * and "cpuofl", respectively), and a CPU being kicked for being too | |
51 | * long in dyntick-idle mode ("kick"). | |
52 | */ | |
3bc29f0a | 53 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period, |
b87700e3 | 54 | |
01adf18e MD |
55 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
56 | TP_PROTO(const char *rcuname, unsigned long gpnum, const char *gpevent), | |
57 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 58 | TP_PROTO(char *rcuname, unsigned long gpnum, char *gpevent), |
01adf18e | 59 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
60 | |
61 | TP_ARGS(rcuname, gpnum, gpevent), | |
62 | ||
f127e61e MD |
63 | TP_FIELDS( |
64 | ctf_string(rcuname, rcuname) | |
65 | ctf_integer(unsigned long, gpnum, gpnum) | |
66 | ctf_string(gpevent, gpevent) | |
67 | ) | |
b87700e3 AG |
68 | ) |
69 | ||
70 | /* | |
71 | * Tracepoint for grace-period-initialization events. These are | |
72 | * distinguished by the type of RCU, the new grace-period number, the | |
73 | * rcu_node structure level, the starting and ending CPU covered by the | |
74 | * rcu_node structure, and the mask of CPUs that will be waited for. | |
75 | * All but the type of RCU are extracted from the rcu_node structure. | |
76 | */ | |
3bc29f0a | 77 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period_init, |
b87700e3 | 78 | |
01adf18e MD |
79 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
80 | TP_PROTO(const char *rcuname, unsigned long gpnum, u8 level, | |
81 | int grplo, int grphi, unsigned long qsmask), | |
82 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 AG |
83 | TP_PROTO(char *rcuname, unsigned long gpnum, u8 level, |
84 | int grplo, int grphi, unsigned long qsmask), | |
01adf18e | 85 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
86 | |
87 | TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask), | |
88 | ||
f127e61e MD |
89 | TP_FIELDS( |
90 | ctf_string(rcuname, rcuname) | |
91 | ctf_integer(unsigned long, gpnum, gpnum) | |
92 | ctf_integer(u8, level, level) | |
93 | ctf_integer(int, grplo, grplo) | |
94 | ctf_integer(int, grphi, grphi) | |
95 | ctf_integer(unsigned long, qsmask, qsmask) | |
96 | ) | |
b87700e3 AG |
97 | ) |
98 | ||
99 | /* | |
100 | * Tracepoint for tasks blocking within preemptible-RCU read-side | |
101 | * critical sections. Track the type of RCU (which one day might | |
102 | * include SRCU), the grace-period number that the task is blocking | |
103 | * (the current or the next), and the task's PID. | |
104 | */ | |
3bc29f0a | 105 | LTTNG_TRACEPOINT_EVENT(rcu_preempt_task, |
b87700e3 | 106 | |
01adf18e MD |
107 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
108 | TP_PROTO(const char *rcuname, int pid, unsigned long gpnum), | |
109 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 110 | TP_PROTO(char *rcuname, int pid, unsigned long gpnum), |
01adf18e | 111 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
112 | |
113 | TP_ARGS(rcuname, pid, gpnum), | |
114 | ||
f127e61e MD |
115 | TP_FIELDS( |
116 | ctf_string(rcuname, rcuname) | |
117 | ctf_integer(unsigned long, gpnum, gpnum) | |
118 | ctf_integer(int, pid, pid) | |
119 | ) | |
b87700e3 AG |
120 | ) |
121 | ||
122 | /* | |
123 | * Tracepoint for tasks that blocked within a given preemptible-RCU | |
124 | * read-side critical section exiting that critical section. Track the | |
125 | * type of RCU (which one day might include SRCU) and the task's PID. | |
126 | */ | |
3bc29f0a | 127 | LTTNG_TRACEPOINT_EVENT(rcu_unlock_preempted_task, |
b87700e3 | 128 | |
01adf18e MD |
129 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
130 | TP_PROTO(const char *rcuname, unsigned long gpnum, int pid), | |
131 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 132 | TP_PROTO(char *rcuname, unsigned long gpnum, int pid), |
01adf18e | 133 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
134 | |
135 | TP_ARGS(rcuname, gpnum, pid), | |
136 | ||
f127e61e MD |
137 | TP_FIELDS( |
138 | ctf_string(rcuname, rcuname) | |
139 | ctf_integer(unsigned long, gpnum, gpnum) | |
140 | ctf_integer(int, pid, pid) | |
141 | ) | |
b87700e3 AG |
142 | ) |
143 | ||
144 | /* | |
145 | * Tracepoint for quiescent-state-reporting events. These are | |
146 | * distinguished by the type of RCU, the grace-period number, the | |
147 | * mask of quiescent lower-level entities, the rcu_node structure level, | |
148 | * the starting and ending CPU covered by the rcu_node structure, and | |
149 | * whether there are any blocked tasks blocking the current grace period. | |
150 | * All but the type of RCU are extracted from the rcu_node structure. | |
151 | */ | |
3bc29f0a | 152 | LTTNG_TRACEPOINT_EVENT(rcu_quiescent_state_report, |
b87700e3 | 153 | |
01adf18e MD |
154 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
155 | TP_PROTO(const char *rcuname, unsigned long gpnum, | |
156 | unsigned long mask, unsigned long qsmask, | |
157 | u8 level, int grplo, int grphi, int gp_tasks), | |
158 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 AG |
159 | TP_PROTO(char *rcuname, unsigned long gpnum, |
160 | unsigned long mask, unsigned long qsmask, | |
161 | u8 level, int grplo, int grphi, int gp_tasks), | |
01adf18e | 162 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
163 | |
164 | TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks), | |
165 | ||
f127e61e MD |
166 | TP_FIELDS( |
167 | ctf_string(rcuname, rcuname) | |
168 | ctf_integer(unsigned long, gpnum, gpnum) | |
169 | ctf_integer(unsigned long, mask, mask) | |
170 | ctf_integer(unsigned long, qsmask, qsmask) | |
171 | ctf_integer(u8, level, level) | |
172 | ctf_integer(int, grplo, grplo) | |
173 | ctf_integer(int, grphi, grphi) | |
174 | ctf_integer(u8, gp_tasks, gp_tasks) | |
175 | ) | |
b87700e3 AG |
176 | ) |
177 | ||
178 | /* | |
179 | * Tracepoint for quiescent states detected by force_quiescent_state(). | |
180 | * These trace events include the type of RCU, the grace-period number | |
181 | * that was blocked by the CPU, the CPU itself, and the type of quiescent | |
182 | * state, which can be "dti" for dyntick-idle mode, "ofl" for CPU offline, | |
183 | * or "kick" when kicking a CPU that has been in dyntick-idle mode for | |
184 | * too long. | |
185 | */ | |
3bc29f0a | 186 | LTTNG_TRACEPOINT_EVENT(rcu_fqs, |
b87700e3 | 187 | |
01adf18e MD |
188 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
189 | TP_PROTO(const char *rcuname, unsigned long gpnum, int cpu, const char *qsevent), | |
190 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 191 | TP_PROTO(char *rcuname, unsigned long gpnum, int cpu, char *qsevent), |
01adf18e | 192 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
193 | |
194 | TP_ARGS(rcuname, gpnum, cpu, qsevent), | |
195 | ||
f127e61e MD |
196 | TP_FIELDS( |
197 | ctf_integer(unsigned long, gpnum, gpnum) | |
198 | ctf_integer(int, cpu, cpu) | |
199 | ctf_string(rcuname, rcuname) | |
200 | ctf_string(qsevent, qsevent) | |
201 | ) | |
b87700e3 AG |
202 | ) |
203 | ||
12318fb8 MD |
204 | #endif /* |
205 | * #if defined(CONFIG_TREE_RCU) | |
206 | * || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) | |
207 | * && defined(CONFIG_PREEMPT_RCU)) | |
208 | * || defined(CONFIG_TREE_PREEMPT_RCU) | |
209 | */ | |
b87700e3 AG |
210 | |
211 | /* | |
212 | * Tracepoint for dyntick-idle entry/exit events. These take a string | |
213 | * as argument: "Start" for entering dyntick-idle mode, "End" for | |
214 | * leaving it, "--=" for events moving towards idle, and "++=" for events | |
215 | * moving away from idle. "Error on entry: not idle task" and "Error on | |
216 | * exit: not idle task" indicate that a non-idle task is erroneously | |
217 | * toying with the idle loop. | |
218 | * | |
219 | * These events also take a pair of numbers, which indicate the nesting | |
220 | * depth before and after the event of interest. Note that task-related | |
221 | * events use the upper bits of each number, while interrupt-related | |
222 | * events use the lower bits. | |
223 | */ | |
760a1cae | 224 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,16,0)) |
3bc29f0a | 225 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
b87700e3 | 226 | |
760a1cae MJ |
227 | TP_PROTO(const char *polarity, long oldnesting, long newnesting, atomic_t dynticks), |
228 | ||
229 | TP_ARGS(polarity, oldnesting, newnesting, dynticks), | |
230 | ||
231 | TP_FIELDS( | |
232 | ctf_string(polarity, polarity) | |
233 | ctf_integer(long, oldnesting, oldnesting) | |
234 | ctf_integer(long, newnesting, newnesting) | |
235 | ctf_integer(int, dynticks, atomic_read(&dynticks)) | |
236 | ) | |
237 | ) | |
238 | ||
239 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) | |
240 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, | |
01adf18e | 241 | |
01adf18e MD |
242 | TP_PROTO(const char *polarity, long long oldnesting, long long newnesting), |
243 | ||
244 | TP_ARGS(polarity, oldnesting, newnesting), | |
760a1cae MJ |
245 | |
246 | TP_FIELDS( | |
247 | ctf_string(polarity, polarity) | |
248 | ctf_integer(long long, oldnesting, oldnesting) | |
249 | ctf_integer(long long, newnesting, newnesting) | |
250 | ) | |
251 | ) | |
01adf18e | 252 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
760a1cae MJ |
253 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
254 | ||
b87700e3 AG |
255 | TP_PROTO(char *polarity, long long oldnesting, long long newnesting), |
256 | ||
257 | TP_ARGS(polarity, oldnesting, newnesting), | |
760a1cae MJ |
258 | |
259 | TP_FIELDS( | |
260 | ctf_string(polarity, polarity) | |
261 | ctf_integer(long long, oldnesting, oldnesting) | |
262 | ctf_integer(long long, newnesting, newnesting) | |
263 | ) | |
264 | ) | |
b87700e3 | 265 | #else |
760a1cae MJ |
266 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
267 | ||
b87700e3 AG |
268 | TP_PROTO(char *polarity), |
269 | ||
270 | TP_ARGS(polarity), | |
b87700e3 | 271 | |
f127e61e MD |
272 | TP_FIELDS( |
273 | ctf_string(polarity, polarity) | |
f127e61e | 274 | ) |
b87700e3 | 275 | ) |
760a1cae MJ |
276 | #endif |
277 | ||
b87700e3 AG |
278 | |
279 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
280 | /* | |
281 | * Tracepoint for RCU preparation for idle, the goal being to get RCU | |
282 | * processing done so that the current CPU can shut off its scheduling | |
283 | * clock and enter dyntick-idle mode. One way to accomplish this is | |
284 | * to drain all RCU callbacks from this CPU, and the other is to have | |
285 | * done everything RCU requires for the current grace period. In this | |
286 | * latter case, the CPU will be awakened at the end of the current grace | |
287 | * period in order to process the remainder of its callbacks. | |
288 | * | |
289 | * These tracepoints take a string as argument: | |
290 | * | |
291 | * "No callbacks": Nothing to do, no callbacks on this CPU. | |
292 | * "In holdoff": Nothing to do, holding off after unsuccessful attempt. | |
293 | * "Begin holdoff": Attempt failed, don't retry until next jiffy. | |
294 | * "Dyntick with callbacks": Entering dyntick-idle despite callbacks. | |
295 | * "Dyntick with lazy callbacks": Entering dyntick-idle w/lazy callbacks. | |
296 | * "More callbacks": Still more callbacks, try again to clear them out. | |
297 | * "Callbacks drained": All callbacks processed, off to dyntick idle! | |
298 | * "Timer": Timer fired to cause CPU to continue processing callbacks. | |
299 | * "Demigrate": Timer fired on wrong CPU, woke up correct CPU. | |
300 | * "Cleanup after idle": Idle exited, timer canceled. | |
301 | */ | |
3bc29f0a | 302 | LTTNG_TRACEPOINT_EVENT(rcu_prep_idle, |
b87700e3 | 303 | |
01adf18e MD |
304 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
305 | TP_PROTO(const char *reason), | |
306 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 307 | TP_PROTO(char *reason), |
01adf18e | 308 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
309 | |
310 | TP_ARGS(reason), | |
311 | ||
f127e61e MD |
312 | TP_FIELDS( |
313 | ctf_string(reason, reason) | |
314 | ) | |
b87700e3 AG |
315 | ) |
316 | #endif | |
317 | ||
318 | /* | |
319 | * Tracepoint for the registration of a single RCU callback function. | |
320 | * The first argument is the type of RCU, the second argument is | |
321 | * a pointer to the RCU callback itself, the third element is the | |
322 | * number of lazy callbacks queued, and the fourth element is the | |
323 | * total number of callbacks queued. | |
324 | */ | |
3bc29f0a | 325 | LTTNG_TRACEPOINT_EVENT(rcu_callback, |
b87700e3 | 326 | |
01adf18e MD |
327 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
328 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen_lazy, | |
329 | long qlen), | |
330 | ||
331 | TP_ARGS(rcuname, rhp, qlen_lazy, qlen), | |
332 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) | |
b87700e3 AG |
333 | TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy, |
334 | long qlen), | |
335 | ||
336 | TP_ARGS(rcuname, rhp, qlen_lazy, qlen), | |
337 | #else | |
338 | TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen), | |
339 | ||
340 | TP_ARGS(rcuname, rhp, qlen), | |
341 | #endif | |
342 | ||
f127e61e MD |
343 | TP_FIELDS( |
344 | ctf_string(rcuname, rcuname) | |
fa91fcac MD |
345 | ctf_integer_hex(void *, rhp, rhp) |
346 | ctf_integer_hex(void *, func, rhp->func) | |
b87700e3 | 347 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
f127e61e | 348 | ctf_integer(long, qlen_lazy, qlen_lazy) |
b87700e3 | 349 | #endif |
f127e61e MD |
350 | ctf_integer(long, qlen, qlen) |
351 | ) | |
b87700e3 AG |
352 | ) |
353 | ||
354 | /* | |
355 | * Tracepoint for the registration of a single RCU callback of the special | |
356 | * kfree() form. The first argument is the RCU type, the second argument | |
357 | * is a pointer to the RCU callback, the third argument is the offset | |
358 | * of the callback within the enclosing RCU-protected data structure, | |
359 | * the fourth argument is the number of lazy callbacks queued, and the | |
360 | * fifth argument is the total number of callbacks queued. | |
361 | */ | |
3bc29f0a | 362 | LTTNG_TRACEPOINT_EVENT(rcu_kfree_callback, |
b87700e3 | 363 | |
01adf18e MD |
364 | |
365 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) | |
366 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset, | |
367 | long qlen_lazy, long qlen), | |
368 | ||
369 | TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen), | |
370 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) | |
b87700e3 AG |
371 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset, |
372 | long qlen_lazy, long qlen), | |
373 | ||
374 | TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen), | |
375 | #else | |
376 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset, | |
377 | long qlen), | |
378 | ||
379 | TP_ARGS(rcuname, rhp, offset, qlen), | |
380 | #endif | |
381 | ||
f127e61e MD |
382 | TP_FIELDS( |
383 | ctf_string(rcuname, rcuname) | |
fa91fcac MD |
384 | ctf_integer_hex(void *, rhp, rhp) |
385 | ctf_integer_hex(unsigned long, offset, offset) | |
b87700e3 | 386 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
f127e61e | 387 | ctf_integer(long, qlen_lazy, qlen_lazy) |
b87700e3 | 388 | #endif |
f127e61e MD |
389 | ctf_integer(long, qlen, qlen) |
390 | ) | |
b87700e3 AG |
391 | ) |
392 | ||
393 | /* | |
394 | * Tracepoint for marking the beginning rcu_do_batch, performed to start | |
395 | * RCU callback invocation. The first argument is the RCU flavor, | |
396 | * the second is the number of lazy callbacks queued, the third is | |
397 | * the total number of callbacks queued, and the fourth argument is | |
398 | * the current RCU-callback batch limit. | |
399 | */ | |
3bc29f0a | 400 | LTTNG_TRACEPOINT_EVENT(rcu_batch_start, |
b87700e3 | 401 | |
01adf18e MD |
402 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
403 | TP_PROTO(const char *rcuname, long qlen_lazy, long qlen, long blimit), | |
404 | ||
405 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), | |
406 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) | |
4b4111c9 MD |
407 | TP_PROTO(char *rcuname, long qlen_lazy, long qlen, long blimit), |
408 | ||
409 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), | |
410 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) | |
b87700e3 AG |
411 | TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit), |
412 | ||
413 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), | |
414 | #else | |
415 | TP_PROTO(char *rcuname, long qlen, int blimit), | |
416 | ||
417 | TP_ARGS(rcuname, qlen, blimit), | |
418 | #endif | |
419 | ||
f127e61e MD |
420 | TP_FIELDS( |
421 | ctf_string(rcuname, rcuname) | |
b87700e3 | 422 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) |
f127e61e | 423 | ctf_integer(long, qlen_lazy, qlen_lazy) |
b87700e3 | 424 | #endif |
f127e61e | 425 | ctf_integer(long, qlen, qlen) |
4b4111c9 | 426 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
f127e61e | 427 | ctf_integer(long, blimit, blimit) |
b87700e3 | 428 | #else |
f127e61e | 429 | ctf_integer(int, blimit, blimit) |
b87700e3 | 430 | #endif |
f127e61e | 431 | ) |
b87700e3 AG |
432 | ) |
433 | ||
434 | /* | |
435 | * Tracepoint for the invocation of a single RCU callback function. | |
436 | * The first argument is the type of RCU, and the second argument is | |
437 | * a pointer to the RCU callback itself. | |
438 | */ | |
3bc29f0a | 439 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_callback, |
b87700e3 | 440 | |
01adf18e MD |
441 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
442 | TP_PROTO(const char *rcuname, struct rcu_head *rhp), | |
443 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 444 | TP_PROTO(char *rcuname, struct rcu_head *rhp), |
01adf18e | 445 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
446 | |
447 | TP_ARGS(rcuname, rhp), | |
448 | ||
f127e61e MD |
449 | TP_FIELDS( |
450 | ctf_string(rcuname, rcuname) | |
fa91fcac MD |
451 | ctf_integer_hex(void *, rhp, rhp) |
452 | ctf_integer_hex(void *, func, rhp->func) | |
f127e61e | 453 | ) |
b87700e3 AG |
454 | ) |
455 | ||
456 | /* | |
457 | * Tracepoint for the invocation of a single RCU callback of the special | |
458 | * kfree() form. The first argument is the RCU flavor, the second | |
459 | * argument is a pointer to the RCU callback, and the third argument | |
460 | * is the offset of the callback within the enclosing RCU-protected | |
461 | * data structure. | |
462 | */ | |
3bc29f0a | 463 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_kfree_callback, |
b87700e3 | 464 | |
01adf18e MD |
465 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
466 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset), | |
467 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 468 | TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset), |
01adf18e | 469 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
470 | |
471 | TP_ARGS(rcuname, rhp, offset), | |
472 | ||
f127e61e MD |
473 | TP_FIELDS( |
474 | ctf_string(rcuname, rcuname) | |
fa91fcac | 475 | ctf_integer_hex(void *, rhp, rhp) |
f127e61e MD |
476 | ctf_integer(unsigned long, offset, offset) |
477 | ) | |
b87700e3 AG |
478 | ) |
479 | ||
480 | /* | |
481 | * Tracepoint for exiting rcu_do_batch after RCU callbacks have been | |
482 | * invoked. The first argument is the name of the RCU flavor, | |
483 | * the second argument is number of callbacks actually invoked, | |
484 | * the third argument (cb) is whether or not any of the callbacks that | |
485 | * were ready to invoke at the beginning of this batch are still | |
486 | * queued, the fourth argument (nr) is the return value of need_resched(), | |
487 | * the fifth argument (iit) is 1 if the current task is the idle task, | |
488 | * and the sixth argument (risk) is the return value from | |
489 | * rcu_is_callbacks_kthread(). | |
490 | */ | |
3bc29f0a | 491 | LTTNG_TRACEPOINT_EVENT(rcu_batch_end, |
b87700e3 | 492 | |
01adf18e MD |
493 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) |
494 | TP_PROTO(const char *rcuname, int callbacks_invoked, | |
495 | char cb, char nr, char iit, char risk), | |
496 | ||
497 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), | |
498 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) | |
499 | TP_PROTO(const char *rcuname, int callbacks_invoked, | |
500 | bool cb, bool nr, bool iit, bool risk), | |
501 | ||
502 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), | |
503 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
b87700e3 AG |
504 | TP_PROTO(char *rcuname, int callbacks_invoked, |
505 | bool cb, bool nr, bool iit, bool risk), | |
506 | ||
507 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), | |
508 | #else | |
509 | TP_PROTO(char *rcuname, int callbacks_invoked), | |
510 | ||
511 | TP_ARGS(rcuname, callbacks_invoked), | |
512 | #endif | |
513 | ||
f127e61e MD |
514 | TP_FIELDS( |
515 | ctf_string(rcuname, rcuname) | |
516 | ctf_integer(int, callbacks_invoked, callbacks_invoked) | |
01adf18e | 517 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) |
f127e61e MD |
518 | ctf_integer(char, cb, cb) |
519 | ctf_integer(char, nr, nr) | |
520 | ctf_integer(char, iit, iit) | |
521 | ctf_integer(char, risk, risk) | |
01adf18e | 522 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) |
f127e61e MD |
523 | ctf_integer(bool, cb, cb) |
524 | ctf_integer(bool, nr, nr) | |
525 | ctf_integer(bool, iit, iit) | |
526 | ctf_integer(bool, risk, risk) | |
b87700e3 | 527 | #endif |
f127e61e | 528 | ) |
b87700e3 AG |
529 | ) |
530 | ||
531 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
532 | /* | |
533 | * Tracepoint for rcutorture readers. The first argument is the name | |
534 | * of the RCU flavor from rcutorture's viewpoint and the second argument | |
535 | * is the callback address. | |
536 | */ | |
3bc29f0a | 537 | LTTNG_TRACEPOINT_EVENT(rcu_torture_read, |
b87700e3 | 538 | |
01adf18e MD |
539 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
540 | TP_PROTO(const char *rcutorturename, struct rcu_head *rhp, | |
541 | unsigned long secs, unsigned long c_old, unsigned long c), | |
542 | ||
543 | TP_ARGS(rcutorturename, rhp, secs, c_old, c), | |
544 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) | |
a828b9d5 MD |
545 | TP_PROTO(char *rcutorturename, struct rcu_head *rhp, |
546 | unsigned long secs, unsigned long c_old, unsigned long c), | |
547 | ||
548 | TP_ARGS(rcutorturename, rhp, secs, c_old, c), | |
549 | #else | |
b87700e3 AG |
550 | TP_PROTO(char *rcutorturename, struct rcu_head *rhp), |
551 | ||
552 | TP_ARGS(rcutorturename, rhp), | |
a828b9d5 | 553 | #endif |
b87700e3 | 554 | |
f127e61e MD |
555 | TP_FIELDS( |
556 | ctf_string(rcutorturename, rcutorturename) | |
fa91fcac | 557 | ctf_integer_hex(struct rcu_head *, rhp, rhp) |
a828b9d5 | 558 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
f127e61e MD |
559 | ctf_integer(unsigned long, secs, secs) |
560 | ctf_integer(unsigned long, c_old, c_old) | |
561 | ctf_integer(unsigned long, c, c) | |
a828b9d5 | 562 | #endif |
f127e61e | 563 | ) |
b87700e3 AG |
564 | ) |
565 | #endif | |
566 | ||
567 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) | |
568 | /* | |
569 | * Tracepoint for _rcu_barrier() execution. The string "s" describes | |
570 | * the _rcu_barrier phase: | |
571 | * "Begin": rcu_barrier_callback() started. | |
572 | * "Check": rcu_barrier_callback() checking for piggybacking. | |
573 | * "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit. | |
574 | * "Inc1": rcu_barrier_callback() piggyback check counter incremented. | |
575 | * "Offline": rcu_barrier_callback() found offline CPU | |
576 | * "OnlineQ": rcu_barrier_callback() found online CPU with callbacks. | |
577 | * "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks. | |
578 | * "IRQ": An rcu_barrier_callback() callback posted on remote CPU. | |
579 | * "CB": An rcu_barrier_callback() invoked a callback, not the last. | |
580 | * "LastCB": An rcu_barrier_callback() invoked the last callback. | |
581 | * "Inc2": rcu_barrier_callback() piggyback check counter incremented. | |
582 | * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument | |
583 | * is the count of remaining callbacks, and "done" is the piggybacking count. | |
584 | */ | |
3bc29f0a | 585 | LTTNG_TRACEPOINT_EVENT(rcu_barrier, |
b87700e3 | 586 | |
01adf18e MD |
587 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) |
588 | TP_PROTO(const char *rcuname, const char *s, int cpu, int cnt, unsigned long done), | |
589 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ | |
b87700e3 | 590 | TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done), |
01adf18e | 591 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)) */ |
b87700e3 AG |
592 | |
593 | TP_ARGS(rcuname, s, cpu, cnt, done), | |
594 | ||
f127e61e MD |
595 | TP_FIELDS( |
596 | ctf_string(rcuname, rcuname) | |
597 | ctf_string(s, s) | |
598 | ctf_integer(int, cpu, cpu) | |
599 | ctf_integer(int, cnt, cnt) | |
600 | ctf_integer(unsigned long, done, done) | |
601 | ) | |
b87700e3 AG |
602 | ) |
603 | #endif | |
604 | ||
605 | #else /* #ifdef CONFIG_RCU_TRACE */ | |
606 | ||
607 | #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0) | |
608 | #define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \ | |
609 | qsmask) do { } while (0) | |
610 | #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0) | |
611 | #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0) | |
612 | #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \ | |
613 | grplo, grphi, gp_tasks) do { } \ | |
614 | while (0) | |
615 | #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0) | |
7621c267 | 616 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,16,0)) |
f442e68c MD |
617 | #define trace_rcu_dyntick(polarity, oldnesting, newnesting, dyntick) do { } while (0) |
618 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
b87700e3 AG |
619 | #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0) |
620 | #else | |
621 | #define trace_rcu_dyntick(polarity) do { } while (0) | |
622 | #endif | |
623 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
624 | #define trace_rcu_prep_idle(reason) do { } while (0) | |
625 | #endif | |
626 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) | |
627 | #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0) | |
628 | #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \ | |
629 | do { } while (0) | |
630 | #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \ | |
631 | do { } while (0) | |
632 | #else | |
633 | #define trace_rcu_callback(rcuname, rhp, qlen) do { } while (0) | |
634 | #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen) do { } while (0) | |
635 | #define trace_rcu_batch_start(rcuname, qlen, blimit) do { } while (0) | |
636 | #endif | |
637 | #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0) | |
638 | #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0) | |
639 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
640 | #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \ | |
641 | do { } while (0) | |
642 | #else | |
643 | #define trace_rcu_batch_end(rcuname, callbacks_invoked) do { } while (0) | |
644 | #endif | |
a828b9d5 MD |
645 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
646 | #define trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \ | |
647 | do { } while (0) | |
648 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) | |
b87700e3 AG |
649 | #define trace_rcu_torture_read(rcutorturename, rhp) do { } while (0) |
650 | #endif | |
651 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) | |
652 | #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0) | |
653 | #endif | |
654 | #endif /* #else #ifdef CONFIG_RCU_TRACE */ | |
655 | ||
3bc29f0a | 656 | #endif /* LTTNG_TRACE_RCU_H */ |
b87700e3 AG |
657 | |
658 | /* This part must be outside protection */ | |
6ec43db8 | 659 | #include <probes/define_trace.h> |