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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * This file defines the trace event structures that go into the ring
4 * buffer directly. They are created via macros so that changes for them
5 * appear in the format file. Using macros will automate this process.
6 *
7 * The macro used to create a ftrace data structure is:
8 *
9 * FTRACE_ENTRY( name, struct_name, id, structure, print )
10 *
11 * @name: the name used the event name, as well as the name of
12 * the directory that holds the format file.
13 *
14 * @struct_name: the name of the structure that is created.
15 *
16 * @id: The event identifier that is used to detect what event
17 * this is from the ring buffer.
18 *
19 * @structure: the structure layout
20 *
21 * - __field( type, item )
22 * This is equivalent to declaring
23 * type item;
24 * in the structure.
25 * - __array( type, item, size )
26 * This is equivalent to declaring
27 * type item[size];
28 * in the structure.
29 *
30 * * for structures within structures, the format of the internal
31 * structure is laid out. This allows the internal structure
32 * to be deciphered for the format file. Although these macros
33 * may become out of sync with the internal structure, they
34 * will create a compile error if it happens. Since the
35 * internel structures are just tracing helpers, this is not
36 * an issue.
37 *
38 * When an internal structure is used, it should use:
39 *
40 * __field_struct( type, item )
41 *
42 * instead of __field. This will prevent it from being shown in
43 * the output file. The fields in the structure should use.
44 *
45 * __field_desc( type, container, item )
46 * __array_desc( type, container, item, len )
47 *
48 * type, item and len are the same as __field and __array, but
49 * container is added. This is the name of the item in
50 * __field_struct that this is describing.
51 *
52 *
53 * @print: the print format shown to users in the format file.
54 */
55
56/*
57 * Function trace entry - function address and parent function address:
58 */
59FTRACE_ENTRY_REG(function, ftrace_entry,
60
61 TRACE_FN,
62
63 F_STRUCT(
64 __field_fn( unsigned long, ip )
65 __field_fn( unsigned long, parent_ip )
66 ),
67
68 F_printk(" %ps <-- %ps",
69 (void *)__entry->ip, (void *)__entry->parent_ip),
70
71 perf_ftrace_event_register
72);
73
74/* Function call entry */
75FTRACE_ENTRY_PACKED(funcgraph_entry, ftrace_graph_ent_entry,
76
77 TRACE_GRAPH_ENT,
78
79 F_STRUCT(
80 __field_struct( struct ftrace_graph_ent, graph_ent )
81 __field_packed( unsigned long, graph_ent, func )
82 __field_packed( int, graph_ent, depth )
83 ),
84
85 F_printk("--> %ps (%d)", (void *)__entry->func, __entry->depth)
86);
87
88/* Function return entry */
89FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
90
91 TRACE_GRAPH_RET,
92
93 F_STRUCT(
94 __field_struct( struct ftrace_graph_ret, ret )
95 __field_packed( unsigned long, ret, func )
96 __field_packed( unsigned long, ret, overrun )
97 __field_packed( unsigned long long, ret, calltime)
98 __field_packed( unsigned long long, ret, rettime )
99 __field_packed( int, ret, depth )
100 ),
101
102 F_printk("<-- %ps (%d) (start: %llx end: %llx) over: %d",
103 (void *)__entry->func, __entry->depth,
104 __entry->calltime, __entry->rettime,
105 __entry->depth)
106);
107
108/*
109 * Context switch trace entry - which task (and prio) we switched from/to:
110 *
111 * This is used for both wakeup and context switches. We only want
112 * to create one structure, but we need two outputs for it.
113 */
114#define FTRACE_CTX_FIELDS \
115 __field( unsigned int, prev_pid ) \
116 __field( unsigned int, next_pid ) \
117 __field( unsigned int, next_cpu ) \
118 __field( unsigned char, prev_prio ) \
119 __field( unsigned char, prev_state ) \
120 __field( unsigned char, next_prio ) \
121 __field( unsigned char, next_state )
122
123FTRACE_ENTRY(context_switch, ctx_switch_entry,
124
125 TRACE_CTX,
126
127 F_STRUCT(
128 FTRACE_CTX_FIELDS
129 ),
130
131 F_printk("%u:%u:%u ==> %u:%u:%u [%03u]",
132 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
133 __entry->next_pid, __entry->next_prio, __entry->next_state,
134 __entry->next_cpu)
135);
136
137/*
138 * FTRACE_ENTRY_DUP only creates the format file, it will not
139 * create another structure.
140 */
141FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
142
143 TRACE_WAKE,
144
145 F_STRUCT(
146 FTRACE_CTX_FIELDS
147 ),
148
149 F_printk("%u:%u:%u ==+ %u:%u:%u [%03u]",
150 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
151 __entry->next_pid, __entry->next_prio, __entry->next_state,
152 __entry->next_cpu)
153);
154
155/*
156 * Stack-trace entry:
157 */
158
159#define FTRACE_STACK_ENTRIES 8
160
161FTRACE_ENTRY(kernel_stack, stack_entry,
162
163 TRACE_STACK,
164
165 F_STRUCT(
166 __field( int, size )
167 __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
168 ),
169
170 F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n"
171 "\t=> %ps\n\t=> %ps\n\t=> %ps\n"
172 "\t=> %ps\n\t=> %ps\n",
173 (void *)__entry->caller[0], (void *)__entry->caller[1],
174 (void *)__entry->caller[2], (void *)__entry->caller[3],
175 (void *)__entry->caller[4], (void *)__entry->caller[5],
176 (void *)__entry->caller[6], (void *)__entry->caller[7])
177);
178
179FTRACE_ENTRY(user_stack, userstack_entry,
180
181 TRACE_USER_STACK,
182
183 F_STRUCT(
184 __field( unsigned int, tgid )
185 __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
186 ),
187
188 F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n"
189 "\t=> %ps\n\t=> %ps\n\t=> %ps\n"
190 "\t=> %ps\n\t=> %ps\n",
191 (void *)__entry->caller[0], (void *)__entry->caller[1],
192 (void *)__entry->caller[2], (void *)__entry->caller[3],
193 (void *)__entry->caller[4], (void *)__entry->caller[5],
194 (void *)__entry->caller[6], (void *)__entry->caller[7])
195);
196
197/*
198 * trace_printk entry:
199 */
200FTRACE_ENTRY(bprint, bprint_entry,
201
202 TRACE_BPRINT,
203
204 F_STRUCT(
205 __field( unsigned long, ip )
206 __field( const char *, fmt )
207 __dynamic_array( u32, buf )
208 ),
209
210 F_printk("%ps: %s",
211 (void *)__entry->ip, __entry->fmt)
212);
213
214FTRACE_ENTRY_REG(print, print_entry,
215
216 TRACE_PRINT,
217
218 F_STRUCT(
219 __field( unsigned long, ip )
220 __dynamic_array( char, buf )
221 ),
222
223 F_printk("%ps: %s",
224 (void *)__entry->ip, __entry->buf),
225
226 ftrace_event_register
227);
228
229FTRACE_ENTRY(raw_data, raw_data_entry,
230
231 TRACE_RAW_DATA,
232
233 F_STRUCT(
234 __field( unsigned int, id )
235 __dynamic_array( char, buf )
236 ),
237
238 F_printk("id:%04x %08x",
239 __entry->id, (int)__entry->buf[0])
240);
241
242FTRACE_ENTRY(bputs, bputs_entry,
243
244 TRACE_BPUTS,
245
246 F_STRUCT(
247 __field( unsigned long, ip )
248 __field( const char *, str )
249 ),
250
251 F_printk("%ps: %s",
252 (void *)__entry->ip, __entry->str)
253);
254
255FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
256
257 TRACE_MMIO_RW,
258
259 F_STRUCT(
260 __field_struct( struct mmiotrace_rw, rw )
261 __field_desc( resource_size_t, rw, phys )
262 __field_desc( unsigned long, rw, value )
263 __field_desc( unsigned long, rw, pc )
264 __field_desc( int, rw, map_id )
265 __field_desc( unsigned char, rw, opcode )
266 __field_desc( unsigned char, rw, width )
267 ),
268
269 F_printk("%lx %lx %lx %d %x %x",
270 (unsigned long)__entry->phys, __entry->value, __entry->pc,
271 __entry->map_id, __entry->opcode, __entry->width)
272);
273
274FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
275
276 TRACE_MMIO_MAP,
277
278 F_STRUCT(
279 __field_struct( struct mmiotrace_map, map )
280 __field_desc( resource_size_t, map, phys )
281 __field_desc( unsigned long, map, virt )
282 __field_desc( unsigned long, map, len )
283 __field_desc( int, map, map_id )
284 __field_desc( unsigned char, map, opcode )
285 ),
286
287 F_printk("%lx %lx %lx %d %x",
288 (unsigned long)__entry->phys, __entry->virt, __entry->len,
289 __entry->map_id, __entry->opcode)
290);
291
292
293#define TRACE_FUNC_SIZE 30
294#define TRACE_FILE_SIZE 20
295
296FTRACE_ENTRY(branch, trace_branch,
297
298 TRACE_BRANCH,
299
300 F_STRUCT(
301 __field( unsigned int, line )
302 __array( char, func, TRACE_FUNC_SIZE+1 )
303 __array( char, file, TRACE_FILE_SIZE+1 )
304 __field( char, correct )
305 __field( char, constant )
306 ),
307
308 F_printk("%u:%s:%s (%u)%s",
309 __entry->line,
310 __entry->func, __entry->file, __entry->correct,
311 __entry->constant ? " CONSTANT" : "")
312);
313
314
315FTRACE_ENTRY(hwlat, hwlat_entry,
316
317 TRACE_HWLAT,
318
319 F_STRUCT(
320 __field( u64, duration )
321 __field( u64, outer_duration )
322 __field( u64, nmi_total_ts )
323 __field_struct( struct timespec64, timestamp )
324 __field_desc( s64, timestamp, tv_sec )
325 __field_desc( long, timestamp, tv_nsec )
326 __field( unsigned int, nmi_count )
327 __field( unsigned int, seqnum )
328 __field( unsigned int, count )
329 ),
330
331 F_printk("cnt:%u\tts:%010llu.%010lu\tinner:%llu\touter:%llu\tcount:%d\tnmi-ts:%llu\tnmi-count:%u\n",
332 __entry->seqnum,
333 __entry->tv_sec,
334 __entry->tv_nsec,
335 __entry->duration,
336 __entry->outer_duration,
337 __entry->count,
338 __entry->nmi_total_ts,
339 __entry->nmi_count)
340);
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * This file defines the trace event structures that go into the ring
4 * buffer directly. They are created via macros so that changes for them
5 * appear in the format file. Using macros will automate this process.
6 *
7 * The macro used to create a ftrace data structure is:
8 *
9 * FTRACE_ENTRY( name, struct_name, id, structure, print )
10 *
11 * @name: the name used the event name, as well as the name of
12 * the directory that holds the format file.
13 *
14 * @struct_name: the name of the structure that is created.
15 *
16 * @id: The event identifier that is used to detect what event
17 * this is from the ring buffer.
18 *
19 * @structure: the structure layout
20 *
21 * - __field( type, item )
22 * This is equivalent to declaring
23 * type item;
24 * in the structure.
25 * - __array( type, item, size )
26 * This is equivalent to declaring
27 * type item[size];
28 * in the structure.
29 *
30 * * for structures within structures, the format of the internal
31 * structure is laid out. This allows the internal structure
32 * to be deciphered for the format file. Although these macros
33 * may become out of sync with the internal structure, they
34 * will create a compile error if it happens. Since the
35 * internal structures are just tracing helpers, this is not
36 * an issue.
37 *
38 * When an internal structure is used, it should use:
39 *
40 * __field_struct( type, item )
41 *
42 * instead of __field. This will prevent it from being shown in
43 * the output file. The fields in the structure should use.
44 *
45 * __field_desc( type, container, item )
46 * __array_desc( type, container, item, len )
47 *
48 * type, item and len are the same as __field and __array, but
49 * container is added. This is the name of the item in
50 * __field_struct that this is describing.
51 *
52 *
53 * @print: the print format shown to users in the format file.
54 */
55
56/*
57 * Function trace entry - function address and parent function address:
58 */
59FTRACE_ENTRY_REG(function, ftrace_entry,
60
61 TRACE_FN,
62
63 F_STRUCT(
64 __field_fn( unsigned long, ip )
65 __field_fn( unsigned long, parent_ip )
66 ),
67
68 F_printk(" %ps <-- %ps",
69 (void *)__entry->ip, (void *)__entry->parent_ip),
70
71 perf_ftrace_event_register
72);
73
74/* Function call entry */
75FTRACE_ENTRY_PACKED(funcgraph_entry, ftrace_graph_ent_entry,
76
77 TRACE_GRAPH_ENT,
78
79 F_STRUCT(
80 __field_struct( struct ftrace_graph_ent, graph_ent )
81 __field_packed( unsigned long, graph_ent, func )
82 __field_packed( int, graph_ent, depth )
83 ),
84
85 F_printk("--> %ps (%d)", (void *)__entry->func, __entry->depth)
86);
87
88/* Function return entry */
89#ifdef CONFIG_FUNCTION_GRAPH_RETVAL
90
91FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
92
93 TRACE_GRAPH_RET,
94
95 F_STRUCT(
96 __field_struct( struct ftrace_graph_ret, ret )
97 __field_packed( unsigned long, ret, func )
98 __field_packed( unsigned long, ret, retval )
99 __field_packed( int, ret, depth )
100 __field_packed( unsigned int, ret, overrun )
101 __field_packed( unsigned long long, ret, calltime)
102 __field_packed( unsigned long long, ret, rettime )
103 ),
104
105 F_printk("<-- %ps (%d) (start: %llx end: %llx) over: %d retval: %lx",
106 (void *)__entry->func, __entry->depth,
107 __entry->calltime, __entry->rettime,
108 __entry->depth, __entry->retval)
109);
110
111#else
112
113FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
114
115 TRACE_GRAPH_RET,
116
117 F_STRUCT(
118 __field_struct( struct ftrace_graph_ret, ret )
119 __field_packed( unsigned long, ret, func )
120 __field_packed( int, ret, depth )
121 __field_packed( unsigned int, ret, overrun )
122 __field_packed( unsigned long long, ret, calltime)
123 __field_packed( unsigned long long, ret, rettime )
124 ),
125
126 F_printk("<-- %ps (%d) (start: %llx end: %llx) over: %d",
127 (void *)__entry->func, __entry->depth,
128 __entry->calltime, __entry->rettime,
129 __entry->depth)
130);
131
132#endif
133
134/*
135 * Context switch trace entry - which task (and prio) we switched from/to:
136 *
137 * This is used for both wakeup and context switches. We only want
138 * to create one structure, but we need two outputs for it.
139 */
140#define FTRACE_CTX_FIELDS \
141 __field( unsigned int, prev_pid ) \
142 __field( unsigned int, next_pid ) \
143 __field( unsigned int, next_cpu ) \
144 __field( unsigned char, prev_prio ) \
145 __field( unsigned char, prev_state ) \
146 __field( unsigned char, next_prio ) \
147 __field( unsigned char, next_state )
148
149FTRACE_ENTRY(context_switch, ctx_switch_entry,
150
151 TRACE_CTX,
152
153 F_STRUCT(
154 FTRACE_CTX_FIELDS
155 ),
156
157 F_printk("%u:%u:%u ==> %u:%u:%u [%03u]",
158 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
159 __entry->next_pid, __entry->next_prio, __entry->next_state,
160 __entry->next_cpu)
161);
162
163/*
164 * FTRACE_ENTRY_DUP only creates the format file, it will not
165 * create another structure.
166 */
167FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
168
169 TRACE_WAKE,
170
171 F_STRUCT(
172 FTRACE_CTX_FIELDS
173 ),
174
175 F_printk("%u:%u:%u ==+ %u:%u:%u [%03u]",
176 __entry->prev_pid, __entry->prev_prio, __entry->prev_state,
177 __entry->next_pid, __entry->next_prio, __entry->next_state,
178 __entry->next_cpu)
179);
180
181/*
182 * Stack-trace entry:
183 */
184
185#define FTRACE_STACK_ENTRIES 8
186
187FTRACE_ENTRY(kernel_stack, stack_entry,
188
189 TRACE_STACK,
190
191 F_STRUCT(
192 __field( int, size )
193 __stack_array( unsigned long, caller, FTRACE_STACK_ENTRIES, size)
194 ),
195
196 F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n"
197 "\t=> %ps\n\t=> %ps\n\t=> %ps\n"
198 "\t=> %ps\n\t=> %ps\n",
199 (void *)__entry->caller[0], (void *)__entry->caller[1],
200 (void *)__entry->caller[2], (void *)__entry->caller[3],
201 (void *)__entry->caller[4], (void *)__entry->caller[5],
202 (void *)__entry->caller[6], (void *)__entry->caller[7])
203);
204
205FTRACE_ENTRY(user_stack, userstack_entry,
206
207 TRACE_USER_STACK,
208
209 F_STRUCT(
210 __field( unsigned int, tgid )
211 __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
212 ),
213
214 F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n"
215 "\t=> %ps\n\t=> %ps\n\t=> %ps\n"
216 "\t=> %ps\n\t=> %ps\n",
217 (void *)__entry->caller[0], (void *)__entry->caller[1],
218 (void *)__entry->caller[2], (void *)__entry->caller[3],
219 (void *)__entry->caller[4], (void *)__entry->caller[5],
220 (void *)__entry->caller[6], (void *)__entry->caller[7])
221);
222
223/*
224 * trace_printk entry:
225 */
226FTRACE_ENTRY(bprint, bprint_entry,
227
228 TRACE_BPRINT,
229
230 F_STRUCT(
231 __field( unsigned long, ip )
232 __field( const char *, fmt )
233 __dynamic_array( u32, buf )
234 ),
235
236 F_printk("%ps: %s",
237 (void *)__entry->ip, __entry->fmt)
238);
239
240FTRACE_ENTRY_REG(print, print_entry,
241
242 TRACE_PRINT,
243
244 F_STRUCT(
245 __field( unsigned long, ip )
246 __dynamic_array( char, buf )
247 ),
248
249 F_printk("%ps: %s",
250 (void *)__entry->ip, __entry->buf),
251
252 ftrace_event_register
253);
254
255FTRACE_ENTRY(raw_data, raw_data_entry,
256
257 TRACE_RAW_DATA,
258
259 F_STRUCT(
260 __field( unsigned int, id )
261 __dynamic_array( char, buf )
262 ),
263
264 F_printk("id:%04x %08x",
265 __entry->id, (int)__entry->buf[0])
266);
267
268FTRACE_ENTRY(bputs, bputs_entry,
269
270 TRACE_BPUTS,
271
272 F_STRUCT(
273 __field( unsigned long, ip )
274 __field( const char *, str )
275 ),
276
277 F_printk("%ps: %s",
278 (void *)__entry->ip, __entry->str)
279);
280
281FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
282
283 TRACE_MMIO_RW,
284
285 F_STRUCT(
286 __field_struct( struct mmiotrace_rw, rw )
287 __field_desc( resource_size_t, rw, phys )
288 __field_desc( unsigned long, rw, value )
289 __field_desc( unsigned long, rw, pc )
290 __field_desc( int, rw, map_id )
291 __field_desc( unsigned char, rw, opcode )
292 __field_desc( unsigned char, rw, width )
293 ),
294
295 F_printk("%lx %lx %lx %d %x %x",
296 (unsigned long)__entry->phys, __entry->value, __entry->pc,
297 __entry->map_id, __entry->opcode, __entry->width)
298);
299
300FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
301
302 TRACE_MMIO_MAP,
303
304 F_STRUCT(
305 __field_struct( struct mmiotrace_map, map )
306 __field_desc( resource_size_t, map, phys )
307 __field_desc( unsigned long, map, virt )
308 __field_desc( unsigned long, map, len )
309 __field_desc( int, map, map_id )
310 __field_desc( unsigned char, map, opcode )
311 ),
312
313 F_printk("%lx %lx %lx %d %x",
314 (unsigned long)__entry->phys, __entry->virt, __entry->len,
315 __entry->map_id, __entry->opcode)
316);
317
318
319#define TRACE_FUNC_SIZE 30
320#define TRACE_FILE_SIZE 20
321
322FTRACE_ENTRY(branch, trace_branch,
323
324 TRACE_BRANCH,
325
326 F_STRUCT(
327 __field( unsigned int, line )
328 __array( char, func, TRACE_FUNC_SIZE+1 )
329 __array( char, file, TRACE_FILE_SIZE+1 )
330 __field( char, correct )
331 __field( char, constant )
332 ),
333
334 F_printk("%u:%s:%s (%u)%s",
335 __entry->line,
336 __entry->func, __entry->file, __entry->correct,
337 __entry->constant ? " CONSTANT" : "")
338);
339
340
341FTRACE_ENTRY(hwlat, hwlat_entry,
342
343 TRACE_HWLAT,
344
345 F_STRUCT(
346 __field( u64, duration )
347 __field( u64, outer_duration )
348 __field( u64, nmi_total_ts )
349 __field_struct( struct timespec64, timestamp )
350 __field_desc( s64, timestamp, tv_sec )
351 __field_desc( long, timestamp, tv_nsec )
352 __field( unsigned int, nmi_count )
353 __field( unsigned int, seqnum )
354 __field( unsigned int, count )
355 ),
356
357 F_printk("cnt:%u\tts:%010llu.%010lu\tinner:%llu\touter:%llu\tcount:%d\tnmi-ts:%llu\tnmi-count:%u\n",
358 __entry->seqnum,
359 __entry->tv_sec,
360 __entry->tv_nsec,
361 __entry->duration,
362 __entry->outer_duration,
363 __entry->count,
364 __entry->nmi_total_ts,
365 __entry->nmi_count)
366);
367
368#define FUNC_REPEATS_GET_DELTA_TS(entry) \
369 (((u64)(entry)->top_delta_ts << 32) | (entry)->bottom_delta_ts) \
370
371FTRACE_ENTRY(func_repeats, func_repeats_entry,
372
373 TRACE_FUNC_REPEATS,
374
375 F_STRUCT(
376 __field( unsigned long, ip )
377 __field( unsigned long, parent_ip )
378 __field( u16 , count )
379 __field( u16 , top_delta_ts )
380 __field( u32 , bottom_delta_ts )
381 ),
382
383 F_printk(" %ps <-%ps\t(repeats:%u delta: -%llu)",
384 (void *)__entry->ip,
385 (void *)__entry->parent_ip,
386 __entry->count,
387 FUNC_REPEATS_GET_DELTA_TS(__entry))
388);
389
390FTRACE_ENTRY(osnoise, osnoise_entry,
391
392 TRACE_OSNOISE,
393
394 F_STRUCT(
395 __field( u64, noise )
396 __field( u64, runtime )
397 __field( u64, max_sample )
398 __field( unsigned int, hw_count )
399 __field( unsigned int, nmi_count )
400 __field( unsigned int, irq_count )
401 __field( unsigned int, softirq_count )
402 __field( unsigned int, thread_count )
403 ),
404
405 F_printk("noise:%llu\tmax_sample:%llu\thw:%u\tnmi:%u\tirq:%u\tsoftirq:%u\tthread:%u\n",
406 __entry->noise,
407 __entry->max_sample,
408 __entry->hw_count,
409 __entry->nmi_count,
410 __entry->irq_count,
411 __entry->softirq_count,
412 __entry->thread_count)
413);
414
415FTRACE_ENTRY(timerlat, timerlat_entry,
416
417 TRACE_TIMERLAT,
418
419 F_STRUCT(
420 __field( unsigned int, seqnum )
421 __field( int, context )
422 __field( u64, timer_latency )
423 ),
424
425 F_printk("seq:%u\tcontext:%d\ttimer_latency:%llu\n",
426 __entry->seqnum,
427 __entry->context,
428 __entry->timer_latency)
429);