Commit | Line | Data |
---|---|---|
b7cdc182 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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 | |
3b4aafcb | 8 | #include <lttng/tracepoint-event.h> |
5f4c791e | 9 | #include <lttng/kernel-version.h> |
b87700e3 AG |
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 | 24 | TP_PROTO(const char *s), |
b87700e3 AG |
25 | |
26 | TP_ARGS(s), | |
27 | ||
f127e61e MD |
28 | TP_FIELDS( |
29 | ctf_string(s, s) | |
30 | ) | |
b87700e3 AG |
31 | ) |
32 | ||
33 | #ifdef CONFIG_RCU_TRACE | |
34 | ||
12318fb8 | 35 | #if defined(CONFIG_TREE_RCU) \ |
d4c1b1de | 36 | || defined(CONFIG_PREEMPT_RCU) \ |
12318fb8 | 37 | || defined(CONFIG_TREE_PREEMPT_RCU) |
b87700e3 AG |
38 | |
39 | /* | |
40 | * Tracepoint for grace-period events: starting and ending a grace | |
41 | * period ("start" and "end", respectively), a CPU noting the start | |
42 | * of a new grace period or the end of an old grace period ("cpustart" | |
43 | * and "cpuend", respectively), a CPU passing through a quiescent | |
44 | * state ("cpuqs"), a CPU coming online or going offline ("cpuonl" | |
45 | * and "cpuofl", respectively), and a CPU being kicked for being too | |
46 | * long in dyntick-idle mode ("kick"). | |
47 | */ | |
5f4c791e | 48 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 49 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
50 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period, |
51 | ||
52 | TP_PROTO(const char *rcuname, unsigned long gp_seq, const char *gpevent), | |
53 | ||
54 | TP_ARGS(rcuname, gp_seq, gpevent), | |
55 | ||
56 | TP_FIELDS( | |
57 | ctf_string(rcuname, rcuname) | |
58 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
59 | ctf_string(gpevent, gpevent) | |
60 | ) | |
61 | ) | |
248211c9 MJ |
62 | #else |
63 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period, | |
64 | ||
d4c1b1de | 65 | TP_PROTO(const char *rcuname, unsigned long gpnum, const char *gpevent), |
b87700e3 AG |
66 | |
67 | TP_ARGS(rcuname, gpnum, gpevent), | |
68 | ||
f127e61e MD |
69 | TP_FIELDS( |
70 | ctf_string(rcuname, rcuname) | |
71 | ctf_integer(unsigned long, gpnum, gpnum) | |
72 | ctf_string(gpevent, gpevent) | |
73 | ) | |
b87700e3 | 74 | ) |
248211c9 | 75 | #endif |
b87700e3 AG |
76 | |
77 | /* | |
78 | * Tracepoint for grace-period-initialization events. These are | |
79 | * distinguished by the type of RCU, the new grace-period number, the | |
80 | * rcu_node structure level, the starting and ending CPU covered by the | |
81 | * rcu_node structure, and the mask of CPUs that will be waited for. | |
82 | * All but the type of RCU are extracted from the rcu_node structure. | |
83 | */ | |
5f4c791e | 84 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 85 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
86 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period_init, |
87 | ||
88 | TP_PROTO(const char *rcuname, unsigned long gp_seq, u8 level, | |
89 | int grplo, int grphi, unsigned long qsmask), | |
90 | ||
91 | TP_ARGS(rcuname, gp_seq, level, grplo, grphi, qsmask), | |
92 | ||
93 | TP_FIELDS( | |
94 | ctf_string(rcuname, rcuname) | |
95 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
96 | ctf_integer(u8, level, level) | |
97 | ctf_integer(int, grplo, grplo) | |
98 | ctf_integer(int, grphi, grphi) | |
99 | ctf_integer(unsigned long, qsmask, qsmask) | |
100 | ) | |
101 | ) | |
248211c9 MJ |
102 | #else |
103 | LTTNG_TRACEPOINT_EVENT(rcu_grace_period_init, | |
104 | ||
d4c1b1de | 105 | TP_PROTO(const char *rcuname, unsigned long gpnum, u8 level, |
b87700e3 AG |
106 | int grplo, int grphi, unsigned long qsmask), |
107 | ||
108 | TP_ARGS(rcuname, gpnum, level, grplo, grphi, qsmask), | |
109 | ||
f127e61e MD |
110 | TP_FIELDS( |
111 | ctf_string(rcuname, rcuname) | |
112 | ctf_integer(unsigned long, gpnum, gpnum) | |
113 | ctf_integer(u8, level, level) | |
114 | ctf_integer(int, grplo, grplo) | |
115 | ctf_integer(int, grphi, grphi) | |
116 | ctf_integer(unsigned long, qsmask, qsmask) | |
117 | ) | |
b87700e3 | 118 | ) |
248211c9 | 119 | #endif |
b87700e3 AG |
120 | |
121 | /* | |
122 | * Tracepoint for tasks blocking within preemptible-RCU read-side | |
123 | * critical sections. Track the type of RCU (which one day might | |
124 | * include SRCU), the grace-period number that the task is blocking | |
125 | * (the current or the next), and the task's PID. | |
126 | */ | |
5f4c791e | 127 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 128 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
129 | LTTNG_TRACEPOINT_EVENT(rcu_preempt_task, |
130 | ||
131 | TP_PROTO(const char *rcuname, int pid, unsigned long gp_seq), | |
132 | ||
133 | TP_ARGS(rcuname, pid, gp_seq), | |
134 | ||
135 | TP_FIELDS( | |
136 | ctf_string(rcuname, rcuname) | |
137 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
138 | ctf_integer(int, pid, pid) | |
139 | ) | |
140 | ) | |
248211c9 MJ |
141 | #else |
142 | LTTNG_TRACEPOINT_EVENT(rcu_preempt_task, | |
143 | ||
d4c1b1de | 144 | TP_PROTO(const char *rcuname, int pid, unsigned long gpnum), |
b87700e3 AG |
145 | |
146 | TP_ARGS(rcuname, pid, gpnum), | |
147 | ||
f127e61e MD |
148 | TP_FIELDS( |
149 | ctf_string(rcuname, rcuname) | |
150 | ctf_integer(unsigned long, gpnum, gpnum) | |
151 | ctf_integer(int, pid, pid) | |
152 | ) | |
b87700e3 | 153 | ) |
248211c9 | 154 | #endif |
b87700e3 AG |
155 | |
156 | /* | |
157 | * Tracepoint for tasks that blocked within a given preemptible-RCU | |
158 | * read-side critical section exiting that critical section. Track the | |
159 | * type of RCU (which one day might include SRCU) and the task's PID. | |
160 | */ | |
5f4c791e | 161 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 162 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
163 | LTTNG_TRACEPOINT_EVENT(rcu_unlock_preempted_task, |
164 | ||
165 | TP_PROTO(const char *rcuname, unsigned long gp_seq, int pid), | |
166 | ||
167 | TP_ARGS(rcuname, gp_seq, pid), | |
168 | ||
169 | TP_FIELDS( | |
170 | ctf_string(rcuname, rcuname) | |
171 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
172 | ctf_integer(int, pid, pid) | |
173 | ) | |
174 | ) | |
248211c9 MJ |
175 | #else |
176 | LTTNG_TRACEPOINT_EVENT(rcu_unlock_preempted_task, | |
177 | ||
d4c1b1de | 178 | TP_PROTO(const char *rcuname, unsigned long gpnum, int pid), |
b87700e3 AG |
179 | |
180 | TP_ARGS(rcuname, gpnum, pid), | |
181 | ||
f127e61e MD |
182 | TP_FIELDS( |
183 | ctf_string(rcuname, rcuname) | |
184 | ctf_integer(unsigned long, gpnum, gpnum) | |
185 | ctf_integer(int, pid, pid) | |
186 | ) | |
b87700e3 | 187 | ) |
248211c9 | 188 | #endif |
b87700e3 AG |
189 | |
190 | /* | |
191 | * Tracepoint for quiescent-state-reporting events. These are | |
192 | * distinguished by the type of RCU, the grace-period number, the | |
193 | * mask of quiescent lower-level entities, the rcu_node structure level, | |
194 | * the starting and ending CPU covered by the rcu_node structure, and | |
195 | * whether there are any blocked tasks blocking the current grace period. | |
196 | * All but the type of RCU are extracted from the rcu_node structure. | |
197 | */ | |
5f4c791e | 198 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 199 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
200 | LTTNG_TRACEPOINT_EVENT(rcu_quiescent_state_report, |
201 | ||
202 | TP_PROTO(const char *rcuname, unsigned long gp_seq, | |
203 | unsigned long mask, unsigned long qsmask, | |
204 | u8 level, int grplo, int grphi, int gp_tasks), | |
205 | ||
206 | TP_ARGS(rcuname, gp_seq, mask, qsmask, level, grplo, grphi, gp_tasks), | |
207 | ||
208 | TP_FIELDS( | |
209 | ctf_string(rcuname, rcuname) | |
210 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
211 | ctf_integer(unsigned long, mask, mask) | |
212 | ctf_integer(unsigned long, qsmask, qsmask) | |
213 | ctf_integer(u8, level, level) | |
214 | ctf_integer(int, grplo, grplo) | |
215 | ctf_integer(int, grphi, grphi) | |
216 | ctf_integer(u8, gp_tasks, gp_tasks) | |
217 | ) | |
218 | ) | |
248211c9 MJ |
219 | #else |
220 | LTTNG_TRACEPOINT_EVENT(rcu_quiescent_state_report, | |
221 | ||
d4c1b1de | 222 | TP_PROTO(const char *rcuname, unsigned long gpnum, |
b87700e3 AG |
223 | unsigned long mask, unsigned long qsmask, |
224 | u8 level, int grplo, int grphi, int gp_tasks), | |
225 | ||
226 | TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks), | |
227 | ||
f127e61e MD |
228 | TP_FIELDS( |
229 | ctf_string(rcuname, rcuname) | |
230 | ctf_integer(unsigned long, gpnum, gpnum) | |
231 | ctf_integer(unsigned long, mask, mask) | |
232 | ctf_integer(unsigned long, qsmask, qsmask) | |
233 | ctf_integer(u8, level, level) | |
234 | ctf_integer(int, grplo, grplo) | |
235 | ctf_integer(int, grphi, grphi) | |
236 | ctf_integer(u8, gp_tasks, gp_tasks) | |
237 | ) | |
b87700e3 | 238 | ) |
248211c9 | 239 | #endif |
b87700e3 AG |
240 | |
241 | /* | |
242 | * Tracepoint for quiescent states detected by force_quiescent_state(). | |
243 | * These trace events include the type of RCU, the grace-period number | |
244 | * that was blocked by the CPU, the CPU itself, and the type of quiescent | |
245 | * state, which can be "dti" for dyntick-idle mode, "ofl" for CPU offline, | |
246 | * or "kick" when kicking a CPU that has been in dyntick-idle mode for | |
247 | * too long. | |
248 | */ | |
5f4c791e | 249 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 250 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
251 | LTTNG_TRACEPOINT_EVENT(rcu_fqs, |
252 | ||
253 | TP_PROTO(const char *rcuname, unsigned long gp_seq, int cpu, const char *qsevent), | |
254 | ||
255 | TP_ARGS(rcuname, gp_seq, cpu, qsevent), | |
256 | ||
257 | TP_FIELDS( | |
258 | ctf_integer(unsigned long, gp_seq, gp_seq) | |
259 | ctf_integer(int, cpu, cpu) | |
260 | ctf_string(rcuname, rcuname) | |
261 | ctf_string(qsevent, qsevent) | |
262 | ) | |
263 | ) | |
248211c9 MJ |
264 | #else |
265 | LTTNG_TRACEPOINT_EVENT(rcu_fqs, | |
266 | ||
d4c1b1de | 267 | TP_PROTO(const char *rcuname, unsigned long gpnum, int cpu, const char *qsevent), |
b87700e3 AG |
268 | |
269 | TP_ARGS(rcuname, gpnum, cpu, qsevent), | |
270 | ||
f127e61e MD |
271 | TP_FIELDS( |
272 | ctf_integer(unsigned long, gpnum, gpnum) | |
273 | ctf_integer(int, cpu, cpu) | |
274 | ctf_string(rcuname, rcuname) | |
275 | ctf_string(qsevent, qsevent) | |
276 | ) | |
b87700e3 | 277 | ) |
248211c9 | 278 | #endif |
b87700e3 | 279 | |
12318fb8 MD |
280 | #endif /* |
281 | * #if defined(CONFIG_TREE_RCU) | |
5f4c791e | 282 | * || (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0) |
12318fb8 MD |
283 | * && defined(CONFIG_PREEMPT_RCU)) |
284 | * || defined(CONFIG_TREE_PREEMPT_RCU) | |
285 | */ | |
b87700e3 AG |
286 | |
287 | /* | |
288 | * Tracepoint for dyntick-idle entry/exit events. These take a string | |
289 | * as argument: "Start" for entering dyntick-idle mode, "End" for | |
290 | * leaving it, "--=" for events moving towards idle, and "++=" for events | |
291 | * moving away from idle. "Error on entry: not idle task" and "Error on | |
292 | * exit: not idle task" indicate that a non-idle task is erroneously | |
293 | * toying with the idle loop. | |
294 | * | |
295 | * These events also take a pair of numbers, which indicate the nesting | |
296 | * depth before and after the event of interest. Note that task-related | |
297 | * events use the upper bits of each number, while interrupt-related | |
298 | * events use the lower bits. | |
299 | */ | |
5f4c791e | 300 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) \ |
8c7190e0 | 301 | || LTTNG_KERNEL_RANGE(5,5,6, 5,6,0) \ |
7c9ce673 MJ |
302 | || LTTNG_KERNEL_RANGE(5,4,22, 5,5,0) \ |
303 | || LTTNG_UBUNTU_KERNEL_RANGE(5,0,21,46, 5,1,0,0) | |
6334822c MJ |
304 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
305 | ||
306 | TP_PROTO(const char *polarity, long oldnesting, long newnesting, int dynticks), | |
307 | ||
308 | TP_ARGS(polarity, oldnesting, newnesting, dynticks), | |
309 | ||
310 | TP_FIELDS( | |
311 | ctf_string(polarity, polarity) | |
312 | ctf_integer(long, oldnesting, oldnesting) | |
313 | ctf_integer(long, newnesting, newnesting) | |
314 | ctf_integer(int, dynticks, dynticks) | |
315 | ) | |
316 | ) | |
317 | ||
5f4c791e | 318 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,16,0)) |
3bc29f0a | 319 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
b87700e3 | 320 | |
760a1cae MJ |
321 | TP_PROTO(const char *polarity, long oldnesting, long newnesting, atomic_t dynticks), |
322 | ||
323 | TP_ARGS(polarity, oldnesting, newnesting, dynticks), | |
324 | ||
325 | TP_FIELDS( | |
326 | ctf_string(polarity, polarity) | |
327 | ctf_integer(long, oldnesting, oldnesting) | |
328 | ctf_integer(long, newnesting, newnesting) | |
329 | ctf_integer(int, dynticks, atomic_read(&dynticks)) | |
330 | ) | |
331 | ) | |
332 | ||
d4c1b1de | 333 | #else |
760a1cae | 334 | LTTNG_TRACEPOINT_EVENT(rcu_dyntick, |
01adf18e | 335 | |
01adf18e MD |
336 | TP_PROTO(const char *polarity, long long oldnesting, long long newnesting), |
337 | ||
338 | TP_ARGS(polarity, oldnesting, newnesting), | |
760a1cae MJ |
339 | |
340 | TP_FIELDS( | |
341 | ctf_string(polarity, polarity) | |
342 | ctf_integer(long long, oldnesting, oldnesting) | |
343 | ctf_integer(long long, newnesting, newnesting) | |
344 | ) | |
345 | ) | |
760a1cae MJ |
346 | #endif |
347 | ||
b87700e3 | 348 | |
b87700e3 AG |
349 | /* |
350 | * Tracepoint for RCU preparation for idle, the goal being to get RCU | |
351 | * processing done so that the current CPU can shut off its scheduling | |
352 | * clock and enter dyntick-idle mode. One way to accomplish this is | |
353 | * to drain all RCU callbacks from this CPU, and the other is to have | |
354 | * done everything RCU requires for the current grace period. In this | |
355 | * latter case, the CPU will be awakened at the end of the current grace | |
356 | * period in order to process the remainder of its callbacks. | |
357 | * | |
358 | * These tracepoints take a string as argument: | |
359 | * | |
360 | * "No callbacks": Nothing to do, no callbacks on this CPU. | |
361 | * "In holdoff": Nothing to do, holding off after unsuccessful attempt. | |
362 | * "Begin holdoff": Attempt failed, don't retry until next jiffy. | |
363 | * "Dyntick with callbacks": Entering dyntick-idle despite callbacks. | |
364 | * "Dyntick with lazy callbacks": Entering dyntick-idle w/lazy callbacks. | |
365 | * "More callbacks": Still more callbacks, try again to clear them out. | |
366 | * "Callbacks drained": All callbacks processed, off to dyntick idle! | |
367 | * "Timer": Timer fired to cause CPU to continue processing callbacks. | |
368 | * "Demigrate": Timer fired on wrong CPU, woke up correct CPU. | |
369 | * "Cleanup after idle": Idle exited, timer canceled. | |
370 | */ | |
3bc29f0a | 371 | LTTNG_TRACEPOINT_EVENT(rcu_prep_idle, |
b87700e3 | 372 | |
01adf18e | 373 | TP_PROTO(const char *reason), |
b87700e3 AG |
374 | |
375 | TP_ARGS(reason), | |
376 | ||
f127e61e MD |
377 | TP_FIELDS( |
378 | ctf_string(reason, reason) | |
379 | ) | |
b87700e3 | 380 | ) |
b87700e3 AG |
381 | |
382 | /* | |
383 | * Tracepoint for the registration of a single RCU callback function. | |
384 | * The first argument is the type of RCU, the second argument is | |
385 | * a pointer to the RCU callback itself, the third element is the | |
386 | * number of lazy callbacks queued, and the fourth element is the | |
387 | * total number of callbacks queued. | |
388 | */ | |
5f4c791e | 389 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) |
3e22913e MJ |
390 | LTTNG_TRACEPOINT_EVENT(rcu_callback, |
391 | ||
392 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen), | |
393 | ||
394 | TP_ARGS(rcuname, rhp, qlen), | |
395 | ||
396 | TP_FIELDS( | |
397 | ctf_string(rcuname, rcuname) | |
398 | ctf_integer_hex(void *, rhp, rhp) | |
399 | ctf_integer_hex(void *, func, rhp->func) | |
400 | ctf_integer(long, qlen, qlen) | |
401 | ) | |
402 | ) | |
d4c1b1de | 403 | #else |
3bc29f0a | 404 | LTTNG_TRACEPOINT_EVENT(rcu_callback, |
b87700e3 | 405 | |
01adf18e MD |
406 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, long qlen_lazy, |
407 | long qlen), | |
408 | ||
409 | TP_ARGS(rcuname, rhp, qlen_lazy, qlen), | |
3e22913e MJ |
410 | |
411 | TP_FIELDS( | |
412 | ctf_string(rcuname, rcuname) | |
413 | ctf_integer_hex(void *, rhp, rhp) | |
414 | ctf_integer_hex(void *, func, rhp->func) | |
415 | ctf_integer(long, qlen_lazy, qlen_lazy) | |
416 | ctf_integer(long, qlen, qlen) | |
417 | ) | |
418 | ) | |
3e22913e MJ |
419 | #endif |
420 | ||
b87700e3 AG |
421 | |
422 | /* | |
423 | * Tracepoint for the registration of a single RCU callback of the special | |
424 | * kfree() form. The first argument is the RCU type, the second argument | |
425 | * is a pointer to the RCU callback, the third argument is the offset | |
426 | * of the callback within the enclosing RCU-protected data structure, | |
427 | * the fourth argument is the number of lazy callbacks queued, and the | |
428 | * fifth argument is the total number of callbacks queued. | |
429 | */ | |
5f4c791e | 430 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) |
3bc29f0a | 431 | LTTNG_TRACEPOINT_EVENT(rcu_kfree_callback, |
b87700e3 | 432 | |
3e22913e MJ |
433 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset, |
434 | long qlen), | |
435 | ||
436 | TP_ARGS(rcuname, rhp, offset, qlen), | |
437 | ||
438 | TP_FIELDS( | |
439 | ctf_string(rcuname, rcuname) | |
440 | ctf_integer_hex(void *, rhp, rhp) | |
441 | ctf_integer_hex(unsigned long, offset, offset) | |
442 | ctf_integer(long, qlen, qlen) | |
443 | ) | |
444 | ) | |
d4c1b1de | 445 | #else |
3e22913e | 446 | LTTNG_TRACEPOINT_EVENT(rcu_kfree_callback, |
01adf18e | 447 | |
01adf18e MD |
448 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset, |
449 | long qlen_lazy, long qlen), | |
450 | ||
451 | TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen), | |
3e22913e MJ |
452 | |
453 | TP_FIELDS( | |
454 | ctf_string(rcuname, rcuname) | |
455 | ctf_integer_hex(void *, rhp, rhp) | |
456 | ctf_integer_hex(unsigned long, offset, offset) | |
457 | ctf_integer(long, qlen_lazy, qlen_lazy) | |
458 | ctf_integer(long, qlen, qlen) | |
459 | ) | |
460 | ) | |
3e22913e | 461 | #endif |
b87700e3 AG |
462 | |
463 | /* | |
464 | * Tracepoint for marking the beginning rcu_do_batch, performed to start | |
465 | * RCU callback invocation. The first argument is the RCU flavor, | |
466 | * the second is the number of lazy callbacks queued, the third is | |
467 | * the total number of callbacks queued, and the fourth argument is | |
468 | * the current RCU-callback batch limit. | |
469 | */ | |
5f4c791e | 470 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) |
3e22913e MJ |
471 | LTTNG_TRACEPOINT_EVENT(rcu_batch_start, |
472 | ||
473 | TP_PROTO(const char *rcuname, long qlen, long blimit), | |
474 | ||
475 | TP_ARGS(rcuname, qlen, blimit), | |
476 | ||
477 | TP_FIELDS( | |
478 | ctf_string(rcuname, rcuname) | |
479 | ctf_integer(long, qlen, qlen) | |
480 | ctf_integer(long, blimit, blimit) | |
481 | ) | |
482 | ) | |
d4c1b1de | 483 | #else |
3bc29f0a | 484 | LTTNG_TRACEPOINT_EVENT(rcu_batch_start, |
b87700e3 | 485 | |
01adf18e MD |
486 | TP_PROTO(const char *rcuname, long qlen_lazy, long qlen, long blimit), |
487 | ||
488 | TP_ARGS(rcuname, qlen_lazy, qlen, blimit), | |
3e22913e MJ |
489 | |
490 | TP_FIELDS( | |
491 | ctf_string(rcuname, rcuname) | |
492 | ctf_integer(long, qlen_lazy, qlen_lazy) | |
493 | ctf_integer(long, qlen, qlen) | |
494 | ctf_integer(long, blimit, blimit) | |
495 | ) | |
496 | ) | |
3e22913e | 497 | #endif |
b87700e3 AG |
498 | |
499 | /* | |
500 | * Tracepoint for the invocation of a single RCU callback function. | |
501 | * The first argument is the type of RCU, and the second argument is | |
502 | * a pointer to the RCU callback itself. | |
503 | */ | |
3bc29f0a | 504 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_callback, |
b87700e3 | 505 | |
01adf18e | 506 | TP_PROTO(const char *rcuname, struct rcu_head *rhp), |
b87700e3 AG |
507 | |
508 | TP_ARGS(rcuname, rhp), | |
509 | ||
f127e61e MD |
510 | TP_FIELDS( |
511 | ctf_string(rcuname, rcuname) | |
fa91fcac MD |
512 | ctf_integer_hex(void *, rhp, rhp) |
513 | ctf_integer_hex(void *, func, rhp->func) | |
f127e61e | 514 | ) |
b87700e3 AG |
515 | ) |
516 | ||
517 | /* | |
518 | * Tracepoint for the invocation of a single RCU callback of the special | |
519 | * kfree() form. The first argument is the RCU flavor, the second | |
520 | * argument is a pointer to the RCU callback, and the third argument | |
521 | * is the offset of the callback within the enclosing RCU-protected | |
522 | * data structure. | |
523 | */ | |
3bc29f0a | 524 | LTTNG_TRACEPOINT_EVENT(rcu_invoke_kfree_callback, |
b87700e3 | 525 | |
01adf18e | 526 | TP_PROTO(const char *rcuname, struct rcu_head *rhp, unsigned long offset), |
b87700e3 AG |
527 | |
528 | TP_ARGS(rcuname, rhp, offset), | |
529 | ||
f127e61e MD |
530 | TP_FIELDS( |
531 | ctf_string(rcuname, rcuname) | |
fa91fcac | 532 | ctf_integer_hex(void *, rhp, rhp) |
f127e61e MD |
533 | ctf_integer(unsigned long, offset, offset) |
534 | ) | |
b87700e3 AG |
535 | ) |
536 | ||
537 | /* | |
538 | * Tracepoint for exiting rcu_do_batch after RCU callbacks have been | |
539 | * invoked. The first argument is the name of the RCU flavor, | |
540 | * the second argument is number of callbacks actually invoked, | |
541 | * the third argument (cb) is whether or not any of the callbacks that | |
542 | * were ready to invoke at the beginning of this batch are still | |
543 | * queued, the fourth argument (nr) is the return value of need_resched(), | |
544 | * the fifth argument (iit) is 1 if the current task is the idle task, | |
545 | * and the sixth argument (risk) is the return value from | |
546 | * rcu_is_callbacks_kthread(). | |
547 | */ | |
3bc29f0a | 548 | LTTNG_TRACEPOINT_EVENT(rcu_batch_end, |
b87700e3 | 549 | |
01adf18e MD |
550 | TP_PROTO(const char *rcuname, int callbacks_invoked, |
551 | char cb, char nr, char iit, char risk), | |
552 | ||
553 | TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk), | |
b87700e3 | 554 | |
f127e61e MD |
555 | TP_FIELDS( |
556 | ctf_string(rcuname, rcuname) | |
557 | ctf_integer(int, callbacks_invoked, callbacks_invoked) | |
f127e61e MD |
558 | ctf_integer(char, cb, cb) |
559 | ctf_integer(char, nr, nr) | |
560 | ctf_integer(char, iit, iit) | |
561 | ctf_integer(char, risk, risk) | |
f127e61e | 562 | ) |
b87700e3 AG |
563 | ) |
564 | ||
b87700e3 AG |
565 | /* |
566 | * Tracepoint for rcutorture readers. The first argument is the name | |
567 | * of the RCU flavor from rcutorture's viewpoint and the second argument | |
568 | * is the callback address. | |
569 | */ | |
3bc29f0a | 570 | LTTNG_TRACEPOINT_EVENT(rcu_torture_read, |
b87700e3 | 571 | |
01adf18e MD |
572 | TP_PROTO(const char *rcutorturename, struct rcu_head *rhp, |
573 | unsigned long secs, unsigned long c_old, unsigned long c), | |
574 | ||
575 | TP_ARGS(rcutorturename, rhp, secs, c_old, c), | |
b87700e3 | 576 | |
f127e61e MD |
577 | TP_FIELDS( |
578 | ctf_string(rcutorturename, rcutorturename) | |
fa91fcac | 579 | ctf_integer_hex(struct rcu_head *, rhp, rhp) |
f127e61e MD |
580 | ctf_integer(unsigned long, secs, secs) |
581 | ctf_integer(unsigned long, c_old, c_old) | |
582 | ctf_integer(unsigned long, c, c) | |
f127e61e | 583 | ) |
b87700e3 | 584 | ) |
b87700e3 | 585 | |
b87700e3 AG |
586 | /* |
587 | * Tracepoint for _rcu_barrier() execution. The string "s" describes | |
588 | * the _rcu_barrier phase: | |
589 | * "Begin": rcu_barrier_callback() started. | |
590 | * "Check": rcu_barrier_callback() checking for piggybacking. | |
591 | * "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit. | |
592 | * "Inc1": rcu_barrier_callback() piggyback check counter incremented. | |
593 | * "Offline": rcu_barrier_callback() found offline CPU | |
594 | * "OnlineQ": rcu_barrier_callback() found online CPU with callbacks. | |
595 | * "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks. | |
596 | * "IRQ": An rcu_barrier_callback() callback posted on remote CPU. | |
597 | * "CB": An rcu_barrier_callback() invoked a callback, not the last. | |
598 | * "LastCB": An rcu_barrier_callback() invoked the last callback. | |
599 | * "Inc2": rcu_barrier_callback() piggyback check counter incremented. | |
600 | * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument | |
601 | * is the count of remaining callbacks, and "done" is the piggybacking count. | |
602 | */ | |
3bc29f0a | 603 | LTTNG_TRACEPOINT_EVENT(rcu_barrier, |
b87700e3 | 604 | |
01adf18e | 605 | TP_PROTO(const char *rcuname, const char *s, int cpu, int cnt, unsigned long done), |
b87700e3 AG |
606 | |
607 | TP_ARGS(rcuname, s, cpu, cnt, done), | |
608 | ||
f127e61e MD |
609 | TP_FIELDS( |
610 | ctf_string(rcuname, rcuname) | |
611 | ctf_string(s, s) | |
612 | ctf_integer(int, cpu, cpu) | |
613 | ctf_integer(int, cnt, cnt) | |
614 | ctf_integer(unsigned long, done, done) | |
615 | ) | |
b87700e3 | 616 | ) |
b87700e3 AG |
617 | |
618 | #else /* #ifdef CONFIG_RCU_TRACE */ | |
619 | ||
5f4c791e | 620 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0) || \ |
aa2608d1 | 621 | LTTNG_RHEL_KERNEL_RANGE(4,18,0,80,0,0, 4,19,0,0,0,0)) |
248211c9 MJ |
622 | #define trace_rcu_grace_period(rcuname, gp_seq, gpevent) do { } while (0) |
623 | #define trace_rcu_grace_period_init(rcuname, gp_seq, level, grplo, grphi, \ | |
624 | qsmask) do { } while (0) | |
625 | #define trace_rcu_preempt_task(rcuname, pid, gp_seq) do { } while (0) | |
626 | #define trace_rcu_unlock_preempted_task(rcuname, gp_seq, pid) do { } while (0) | |
627 | #define trace_rcu_quiescent_state_report(rcuname, gp_seq, mask, qsmask, level, \ | |
628 | grplo, grphi, gp_tasks) do { } \ | |
629 | while (0) | |
630 | #define trace_rcu_fqs(rcuname, gp_seq, cpu, qsevent) do { } while (0) | |
631 | #else | |
b87700e3 AG |
632 | #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0) |
633 | #define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \ | |
634 | qsmask) do { } while (0) | |
635 | #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0) | |
636 | #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0) | |
637 | #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \ | |
638 | grplo, grphi, gp_tasks) do { } \ | |
639 | while (0) | |
640 | #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0) | |
248211c9 MJ |
641 | #endif |
642 | ||
5f4c791e | 643 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,16,0)) |
f442e68c | 644 | #define trace_rcu_dyntick(polarity, oldnesting, newnesting, dyntick) do { } while (0) |
b87700e3 | 645 | #else |
d4c1b1de | 646 | #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0) |
b87700e3 | 647 | #endif |
d4c1b1de | 648 | |
b87700e3 | 649 | #define trace_rcu_prep_idle(reason) do { } while (0) |
b87700e3 AG |
650 | #define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0) |
651 | #define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \ | |
652 | do { } while (0) | |
653 | #define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \ | |
654 | do { } while (0) | |
b87700e3 AG |
655 | #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0) |
656 | #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0) | |
b87700e3 AG |
657 | #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \ |
658 | do { } while (0) | |
a828b9d5 MD |
659 | #define trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \ |
660 | do { } while (0) | |
b87700e3 | 661 | #define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0) |
b87700e3 AG |
662 | #endif /* #else #ifdef CONFIG_RCU_TRACE */ |
663 | ||
3bc29f0a | 664 | #endif /* LTTNG_TRACE_RCU_H */ |
b87700e3 AG |
665 | |
666 | /* This part must be outside protection */ | |
3b4aafcb | 667 | #include <lttng/define_trace.h> |