sched.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#undef TRACE_SYSTEM
  3#define TRACE_SYSTEM sched
  4
  5#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
  6#define _TRACE_SCHED_H
  7
  8#include <linux/kthread.h>
  9#include <linux/sched/numa_balancing.h>
 10#include <linux/tracepoint.h>
 11#include <linux/binfmts.h>
 12
 13/*
 14 * Tracepoint for calling kthread_stop, performed to end a kthread:
 15 */
 16TRACE_EVENT(sched_kthread_stop,
 17
 18	TP_PROTO(struct task_struct *t),
 19
 20	TP_ARGS(t),
 21
 22	TP_STRUCT__entry(
 23		__string(	comm,	t->comm		)
 24		__field(	pid_t,	pid		)
 25	),
 26
 27	TP_fast_assign(
 28		__assign_str(comm);
 29		__entry->pid	= t->pid;
 30	),
 31
 32	TP_printk("comm=%s pid=%d", __get_str(comm), __entry->pid)
 33);
 34
 35/*
 36 * Tracepoint for the return value of the kthread stopping:
 37 */
 38TRACE_EVENT(sched_kthread_stop_ret,
 39
 40	TP_PROTO(int ret),
 41
 42	TP_ARGS(ret),
 43
 44	TP_STRUCT__entry(
 45		__field(	int,	ret	)
 46	),
 47
 48	TP_fast_assign(
 49		__entry->ret	= ret;
 50	),
 51
 52	TP_printk("ret=%d", __entry->ret)
 53);
 54
 55/**
 56 * sched_kthread_work_queue_work - called when a work gets queued
 57 * @worker:	pointer to the kthread_worker
 58 * @work:	pointer to struct kthread_work
 59 *
 60 * This event occurs when a work is queued immediately or once a
 61 * delayed work is actually queued (ie: once the delay has been
 62 * reached).
 63 */
 64TRACE_EVENT(sched_kthread_work_queue_work,
 65
 66	TP_PROTO(struct kthread_worker *worker,
 67		 struct kthread_work *work),
 68
 69	TP_ARGS(worker, work),
 70
 71	TP_STRUCT__entry(
 72		__field( void *,	work	)
 73		__field( void *,	function)
 74		__field( void *,	worker)
 75	),
 76
 77	TP_fast_assign(
 78		__entry->work		= work;
 79		__entry->function	= work->func;
 80		__entry->worker		= worker;
 81	),
 82
 83	TP_printk("work struct=%p function=%ps worker=%p",
 84		  __entry->work, __entry->function, __entry->worker)
 85);
 86
 87/**
 88 * sched_kthread_work_execute_start - called immediately before the work callback
 89 * @work:	pointer to struct kthread_work
 90 *
 91 * Allows to track kthread work execution.
 92 */
 93TRACE_EVENT(sched_kthread_work_execute_start,
 94
 95	TP_PROTO(struct kthread_work *work),
 96
 97	TP_ARGS(work),
 98
 99	TP_STRUCT__entry(
100		__field( void *,	work	)
101		__field( void *,	function)
102	),
103
104	TP_fast_assign(
105		__entry->work		= work;
106		__entry->function	= work->func;
107	),
108
109	TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
110);
111
112/**
113 * sched_kthread_work_execute_end - called immediately after the work callback
114 * @work:	pointer to struct work_struct
115 * @function:   pointer to worker function
116 *
117 * Allows to track workqueue execution.
118 */
119TRACE_EVENT(sched_kthread_work_execute_end,
120
121	TP_PROTO(struct kthread_work *work, kthread_work_func_t function),
122
123	TP_ARGS(work, function),
124
125	TP_STRUCT__entry(
126		__field( void *,	work	)
127		__field( void *,	function)
128	),
129
130	TP_fast_assign(
131		__entry->work		= work;
132		__entry->function	= function;
133	),
134
135	TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
136);
137
138/*
139 * Tracepoint for waking up a task:
140 */
141DECLARE_EVENT_CLASS(sched_wakeup_template,
142
143	TP_PROTO(struct task_struct *p),
144
145	TP_ARGS(__perf_task(p)),
146
147	TP_STRUCT__entry(
148		__array(	char,	comm,	TASK_COMM_LEN	)
149		__field(	pid_t,	pid			)
150		__field(	int,	prio			)
151		__field(	int,	target_cpu		)
152	),
153
154	TP_fast_assign(
155		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
156		__entry->pid		= p->pid;
157		__entry->prio		= p->prio; /* XXX SCHED_DEADLINE */
158		__entry->target_cpu	= task_cpu(p);
159	),
160
161	TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
162		  __entry->comm, __entry->pid, __entry->prio,
163		  __entry->target_cpu)
164);
165
166/*
167 * Tracepoint called when waking a task; this tracepoint is guaranteed to be
168 * called from the waking context.
169 */
170DEFINE_EVENT(sched_wakeup_template, sched_waking,
171	     TP_PROTO(struct task_struct *p),
172	     TP_ARGS(p));
173
174/*
175 * Tracepoint called when the task is actually woken; p->state == TASK_RUNNING.
176 * It is not always called from the waking context.
177 */
178DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
179	     TP_PROTO(struct task_struct *p),
180	     TP_ARGS(p));
181
182/*
183 * Tracepoint for waking up a new task:
184 */
185DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
186	     TP_PROTO(struct task_struct *p),
187	     TP_ARGS(p));
188
189#ifdef CREATE_TRACE_POINTS
190static inline long __trace_sched_switch_state(bool preempt,
191					      unsigned int prev_state,
192					      struct task_struct *p)
193{
194	unsigned int state;
195
196	BUG_ON(p != current);
197
198	/*
199	 * Preemption ignores task state, therefore preempted tasks are always
200	 * RUNNING (we will not have dequeued if state != RUNNING).
201	 */
202	if (preempt)
203		return TASK_REPORT_MAX;
204
205	/*
206	 * task_state_index() uses fls() and returns a value from 0-8 range.
207	 * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
208	 * it for left shift operation to get the correct task->state
209	 * mapping.
210	 */
211	state = __task_state_index(prev_state, p->exit_state);
212
213	return state ? (1 << (state - 1)) : state;
214}
215#endif /* CREATE_TRACE_POINTS */
216
217/*
218 * Tracepoint for task switches, performed by the scheduler:
219 */
220TRACE_EVENT(sched_switch,
221
222	TP_PROTO(bool preempt,
223		 struct task_struct *prev,
224		 struct task_struct *next,
225		 unsigned int prev_state),
226
227	TP_ARGS(preempt, prev, next, prev_state),
228
229	TP_STRUCT__entry(
230		__array(	char,	prev_comm,	TASK_COMM_LEN	)
231		__field(	pid_t,	prev_pid			)
232		__field(	int,	prev_prio			)
233		__field(	long,	prev_state			)
234		__array(	char,	next_comm,	TASK_COMM_LEN	)
235		__field(	pid_t,	next_pid			)
236		__field(	int,	next_prio			)
237	),
238
239	TP_fast_assign(
240		memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
241		__entry->prev_pid	= prev->pid;
242		__entry->prev_prio	= prev->prio;
243		__entry->prev_state	= __trace_sched_switch_state(preempt, prev_state, prev);
244		memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
245		__entry->next_pid	= next->pid;
246		__entry->next_prio	= next->prio;
247		/* XXX SCHED_DEADLINE */
248	),
249
250	TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d",
251		__entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
252
253		(__entry->prev_state & (TASK_REPORT_MAX - 1)) ?
254		  __print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|",
255				{ TASK_INTERRUPTIBLE, "S" },
256				{ TASK_UNINTERRUPTIBLE, "D" },
257				{ __TASK_STOPPED, "T" },
258				{ __TASK_TRACED, "t" },
259				{ EXIT_DEAD, "X" },
260				{ EXIT_ZOMBIE, "Z" },
261				{ TASK_PARKED, "P" },
262				{ TASK_DEAD, "I" }) :
263		  "R",
264
265		__entry->prev_state & TASK_REPORT_MAX ? "+" : "",
266		__entry->next_comm, __entry->next_pid, __entry->next_prio)
267);
268
269/*
270 * Tracepoint for a task being migrated:
271 */
272TRACE_EVENT(sched_migrate_task,
273
274	TP_PROTO(struct task_struct *p, int dest_cpu),
275
276	TP_ARGS(p, dest_cpu),
277
278	TP_STRUCT__entry(
279		__string(	comm,	p->comm		)
280		__field(	pid_t,	pid		)
281		__field(	int,	prio		)
282		__field(	int,	orig_cpu	)
283		__field(	int,	dest_cpu	)
284	),
285
286	TP_fast_assign(
287		__assign_str(comm);
288		__entry->pid		= p->pid;
289		__entry->prio		= p->prio; /* XXX SCHED_DEADLINE */
290		__entry->orig_cpu	= task_cpu(p);
291		__entry->dest_cpu	= dest_cpu;
292	),
293
294	TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
295		  __get_str(comm), __entry->pid, __entry->prio,
296		  __entry->orig_cpu, __entry->dest_cpu)
297);
298
299DECLARE_EVENT_CLASS(sched_process_template,
300
301	TP_PROTO(struct task_struct *p),
302
303	TP_ARGS(p),
304
305	TP_STRUCT__entry(
306		__string(	comm,	p->comm		)
307		__field(	pid_t,	pid		)
308		__field(	int,	prio		)
309	),
310
311	TP_fast_assign(
312		__assign_str(comm);
313		__entry->pid		= p->pid;
314		__entry->prio		= p->prio; /* XXX SCHED_DEADLINE */
315	),
316
317	TP_printk("comm=%s pid=%d prio=%d",
318		  __get_str(comm), __entry->pid, __entry->prio)
319);
320
321/*
322 * Tracepoint for freeing a task:
323 */
324DEFINE_EVENT(sched_process_template, sched_process_free,
325	     TP_PROTO(struct task_struct *p),
326	     TP_ARGS(p));
327
328/*
329 * Tracepoint for a task exiting.
330 * Note, it's a superset of sched_process_template and should be kept
331 * compatible as much as possible. sched_process_exits has an extra
332 * `group_dead` argument, so sched_process_template can't be used,
333 * unfortunately, just like sched_migrate_task above.
334 */
335TRACE_EVENT(sched_process_exit,
336
337	TP_PROTO(struct task_struct *p, bool group_dead),
338
339	TP_ARGS(p, group_dead),
340
341	TP_STRUCT__entry(
342		__array(	char,	comm,	TASK_COMM_LEN	)
343		__field(	pid_t,	pid			)
344		__field(	int,	prio			)
345		__field(	bool,	group_dead		)
346	),
347
348	TP_fast_assign(
349		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
350		__entry->pid		= p->pid;
351		__entry->prio		= p->prio; /* XXX SCHED_DEADLINE */
352		__entry->group_dead	= group_dead;
353	),
354
355	TP_printk("comm=%s pid=%d prio=%d group_dead=%s",
356		  __entry->comm, __entry->pid, __entry->prio,
357		  __entry->group_dead ? "true" : "false"
358	)
359);
360
361/*
362 * Tracepoint for waiting on task to unschedule:
363 */
364DEFINE_EVENT(sched_process_template, sched_wait_task,
365	TP_PROTO(struct task_struct *p),
366	TP_ARGS(p));
367
368/*
369 * Tracepoint for a waiting task:
370 */
371TRACE_EVENT(sched_process_wait,
372
373	TP_PROTO(struct pid *pid),
374
375	TP_ARGS(pid),
376
377	TP_STRUCT__entry(
378		__string(	comm,	current->comm		)
379		__field(	pid_t,	pid			)
380		__field(	int,	prio			)
381	),
382
383	TP_fast_assign(
384		__assign_str(comm);
385		__entry->pid		= pid_nr(pid);
386		__entry->prio		= current->prio; /* XXX SCHED_DEADLINE */
387	),
388
389	TP_printk("comm=%s pid=%d prio=%d",
390		  __get_str(comm), __entry->pid, __entry->prio)
391);
392
393/*
394 * Tracepoint for kernel_clone:
395 */
396TRACE_EVENT(sched_process_fork,
397
398	TP_PROTO(struct task_struct *parent, struct task_struct *child),
399
400	TP_ARGS(parent, child),
401
402	TP_STRUCT__entry(
403		__string(	parent_comm,	parent->comm	)
404		__field(	pid_t,		parent_pid	)
405		__string(	child_comm,	child->comm	)
406		__field(	pid_t,		child_pid	)
407	),
408
409	TP_fast_assign(
410		__assign_str(parent_comm);
411		__entry->parent_pid	= parent->pid;
412		__assign_str(child_comm);
413		__entry->child_pid	= child->pid;
414	),
415
416	TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
417		__get_str(parent_comm), __entry->parent_pid,
418		__get_str(child_comm), __entry->child_pid)
419);
420
421/*
422 * Tracepoint for exec:
423 */
424TRACE_EVENT(sched_process_exec,
425
426	TP_PROTO(struct task_struct *p, pid_t old_pid,
427		 struct linux_binprm *bprm),
428
429	TP_ARGS(p, old_pid, bprm),
430
431	TP_STRUCT__entry(
432		__string(	filename,	bprm->filename	)
433		__field(	pid_t,		pid		)
434		__field(	pid_t,		old_pid		)
435	),
436
437	TP_fast_assign(
438		__assign_str(filename);
439		__entry->pid		= p->pid;
440		__entry->old_pid	= old_pid;
441	),
442
443	TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
444		  __entry->pid, __entry->old_pid)
445);
446
447/**
448 * sched_prepare_exec - called before setting up new exec
449 * @task:	pointer to the current task
450 * @bprm:	pointer to linux_binprm used for new exec
451 *
452 * Called before flushing the old exec, where @task is still unchanged, but at
453 * the point of no return during switching to the new exec. At the point it is
454 * called the exec will either succeed, or on failure terminate the task. Also
455 * see the "sched_process_exec" tracepoint, which is called right after @task
456 * has successfully switched to the new exec.
457 */
458TRACE_EVENT(sched_prepare_exec,
459
460	TP_PROTO(struct task_struct *task, struct linux_binprm *bprm),
461
462	TP_ARGS(task, bprm),
463
464	TP_STRUCT__entry(
465		__string(	interp,		bprm->interp	)
466		__string(	filename,	bprm->filename	)
467		__field(	pid_t,		pid		)
468		__string(	comm,		task->comm	)
469	),
470
471	TP_fast_assign(
472		__assign_str(interp);
473		__assign_str(filename);
474		__entry->pid = task->pid;
475		__assign_str(comm);
476	),
477
478	TP_printk("interp=%s filename=%s pid=%d comm=%s",
479		  __get_str(interp), __get_str(filename),
480		  __entry->pid, __get_str(comm))
481);
482
483#ifdef CONFIG_SCHEDSTATS
484#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT
485#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS
486#else
487#define DEFINE_EVENT_SCHEDSTAT DEFINE_EVENT_NOP
488#define DECLARE_EVENT_CLASS_SCHEDSTAT DECLARE_EVENT_CLASS_NOP
489#endif
490
491/*
492 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
493 *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
494 */
495DECLARE_EVENT_CLASS_SCHEDSTAT(sched_stat_template,
496
497	TP_PROTO(struct task_struct *tsk, u64 delay),
498
499	TP_ARGS(__perf_task(tsk), __perf_count(delay)),
500
501	TP_STRUCT__entry(
502		__string( comm,	tsk->comm	)
503		__field(  pid_t,	pid	)
504		__field(  u64,		delay	)
505	),
506
507	TP_fast_assign(
508		__assign_str(comm);
509		__entry->pid	= tsk->pid;
510		__entry->delay	= delay;
511	),
512
513	TP_printk("comm=%s pid=%d delay=%Lu [ns]",
514			__get_str(comm), __entry->pid,
515			(unsigned long long)__entry->delay)
516);
517
518/*
519 * Tracepoint for accounting wait time (time the task is runnable
520 * but not actually running due to scheduler contention).
521 */
522DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_wait,
523	     TP_PROTO(struct task_struct *tsk, u64 delay),
524	     TP_ARGS(tsk, delay));
525
526/*
527 * Tracepoint for accounting sleep time (time the task is not runnable,
528 * including iowait, see below).
529 */
530DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_sleep,
531	     TP_PROTO(struct task_struct *tsk, u64 delay),
532	     TP_ARGS(tsk, delay));
533
534/*
535 * Tracepoint for accounting iowait time (time the task is not runnable
536 * due to waiting on IO to complete).
537 */
538DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_iowait,
539	     TP_PROTO(struct task_struct *tsk, u64 delay),
540	     TP_ARGS(tsk, delay));
541
542/*
543 * Tracepoint for accounting blocked time (time the task is in uninterruptible).
544 */
545DEFINE_EVENT_SCHEDSTAT(sched_stat_template, sched_stat_blocked,
546	     TP_PROTO(struct task_struct *tsk, u64 delay),
547	     TP_ARGS(tsk, delay));
548
549/*
550 * Tracepoint for accounting runtime (time the task is executing
551 * on a CPU).
552 */
553DECLARE_EVENT_CLASS(sched_stat_runtime,
554
555	TP_PROTO(struct task_struct *tsk, u64 runtime),
556
557	TP_ARGS(tsk, __perf_count(runtime)),
558
559	TP_STRUCT__entry(
560		__string( comm,		tsk->comm	)
561		__field(  pid_t,	pid		)
562		__field(  u64,		runtime		)
563	),
564
565	TP_fast_assign(
566		__assign_str(comm);
567		__entry->pid		= tsk->pid;
568		__entry->runtime	= runtime;
569	),
570
571	TP_printk("comm=%s pid=%d runtime=%Lu [ns]",
572			__get_str(comm), __entry->pid,
573			(unsigned long long)__entry->runtime)
574);
575
576DEFINE_EVENT(sched_stat_runtime, sched_stat_runtime,
577	     TP_PROTO(struct task_struct *tsk, u64 runtime),
578	     TP_ARGS(tsk, runtime));
579
580/*
581 * Tracepoint for showing priority inheritance modifying a tasks
582 * priority.
583 */
584TRACE_EVENT(sched_pi_setprio,
585
586	TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
587
588	TP_ARGS(tsk, pi_task),
589
590	TP_STRUCT__entry(
591		__string( comm,		tsk->comm	)
592		__field(  pid_t,	pid		)
593		__field(  int,		oldprio		)
594		__field(  int,		newprio		)
595	),
596
597	TP_fast_assign(
598		__assign_str(comm);
599		__entry->pid		= tsk->pid;
600		__entry->oldprio	= tsk->prio;
601		__entry->newprio	= pi_task ?
602				min(tsk->normal_prio, pi_task->prio) :
603				tsk->normal_prio;
604		/* XXX SCHED_DEADLINE bits missing */
605	),
606
607	TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
608			__get_str(comm), __entry->pid,
609			__entry->oldprio, __entry->newprio)
610);
611
612#ifdef CONFIG_DETECT_HUNG_TASK
613TRACE_EVENT(sched_process_hang,
614	TP_PROTO(struct task_struct *tsk),
615	TP_ARGS(tsk),
616
617	TP_STRUCT__entry(
618		__string( comm,		tsk->comm	)
619		__field(  pid_t,	pid		)
620	),
621
622	TP_fast_assign(
623		__assign_str(comm);
624		__entry->pid = tsk->pid;
625	),
626
627	TP_printk("comm=%s pid=%d", __get_str(comm), __entry->pid)
628);
629#endif /* CONFIG_DETECT_HUNG_TASK */
630
631#ifdef CONFIG_NUMA_BALANCING
632/*
633 * Tracks migration of tasks from one runqueue to another. Can be used to
634 * detect if automatic NUMA balancing is bouncing between nodes.
635 */
636TRACE_EVENT(sched_move_numa,
637
638	TP_PROTO(struct task_struct *tsk, int src_cpu, int dst_cpu),
639
640	TP_ARGS(tsk, src_cpu, dst_cpu),
641
642	TP_STRUCT__entry(
643		__field( pid_t,	pid			)
644		__field( pid_t,	tgid			)
645		__field( pid_t,	ngid			)
646		__field( int,	src_cpu			)
647		__field( int,	src_nid			)
648		__field( int,	dst_cpu			)
649		__field( int,	dst_nid			)
650	),
651
652	TP_fast_assign(
653		__entry->pid		= task_pid_nr(tsk);
654		__entry->tgid		= task_tgid_nr(tsk);
655		__entry->ngid		= task_numa_group_id(tsk);
656		__entry->src_cpu	= src_cpu;
657		__entry->src_nid	= cpu_to_node(src_cpu);
658		__entry->dst_cpu	= dst_cpu;
659		__entry->dst_nid	= cpu_to_node(dst_cpu);
660	),
661
662	TP_printk("pid=%d tgid=%d ngid=%d src_cpu=%d src_nid=%d dst_cpu=%d dst_nid=%d",
663			__entry->pid, __entry->tgid, __entry->ngid,
664			__entry->src_cpu, __entry->src_nid,
665			__entry->dst_cpu, __entry->dst_nid)
666);
667
668DECLARE_EVENT_CLASS(sched_numa_pair_template,
669
670	TP_PROTO(struct task_struct *src_tsk, int src_cpu,
671		 struct task_struct *dst_tsk, int dst_cpu),
672
673	TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu),
674
675	TP_STRUCT__entry(
676		__field( pid_t,	src_pid			)
677		__field( pid_t,	src_tgid		)
678		__field( pid_t,	src_ngid		)
679		__field( int,	src_cpu			)
680		__field( int,	src_nid			)
681		__field( pid_t,	dst_pid			)
682		__field( pid_t,	dst_tgid		)
683		__field( pid_t,	dst_ngid		)
684		__field( int,	dst_cpu			)
685		__field( int,	dst_nid			)
686	),
687
688	TP_fast_assign(
689		__entry->src_pid	= task_pid_nr(src_tsk);
690		__entry->src_tgid	= task_tgid_nr(src_tsk);
691		__entry->src_ngid	= task_numa_group_id(src_tsk);
692		__entry->src_cpu	= src_cpu;
693		__entry->src_nid	= cpu_to_node(src_cpu);
694		__entry->dst_pid	= dst_tsk ? task_pid_nr(dst_tsk) : 0;
695		__entry->dst_tgid	= dst_tsk ? task_tgid_nr(dst_tsk) : 0;
696		__entry->dst_ngid	= dst_tsk ? task_numa_group_id(dst_tsk) : 0;
697		__entry->dst_cpu	= dst_cpu;
698		__entry->dst_nid	= dst_cpu >= 0 ? cpu_to_node(dst_cpu) : -1;
699	),
700
701	TP_printk("src_pid=%d src_tgid=%d src_ngid=%d src_cpu=%d src_nid=%d dst_pid=%d dst_tgid=%d dst_ngid=%d dst_cpu=%d dst_nid=%d",
702			__entry->src_pid, __entry->src_tgid, __entry->src_ngid,
703			__entry->src_cpu, __entry->src_nid,
704			__entry->dst_pid, __entry->dst_tgid, __entry->dst_ngid,
705			__entry->dst_cpu, __entry->dst_nid)
706);
707
708DEFINE_EVENT(sched_numa_pair_template, sched_stick_numa,
709
710	TP_PROTO(struct task_struct *src_tsk, int src_cpu,
711		 struct task_struct *dst_tsk, int dst_cpu),
712
713	TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
714);
715
716DEFINE_EVENT(sched_numa_pair_template, sched_swap_numa,
717
718	TP_PROTO(struct task_struct *src_tsk, int src_cpu,
719		 struct task_struct *dst_tsk, int dst_cpu),
720
721	TP_ARGS(src_tsk, src_cpu, dst_tsk, dst_cpu)
722);
723
724#define NUMAB_SKIP_REASON					\
725	EM( NUMAB_SKIP_UNSUITABLE,		"unsuitable" )	\
726	EM( NUMAB_SKIP_SHARED_RO,		"shared_ro" )	\
727	EM( NUMAB_SKIP_INACCESSIBLE,		"inaccessible" )	\
728	EM( NUMAB_SKIP_SCAN_DELAY,		"scan_delay" )	\
729	EM( NUMAB_SKIP_PID_INACTIVE,		"pid_inactive" )	\
730	EM( NUMAB_SKIP_IGNORE_PID,		"ignore_pid_inactive" )		\
731	EMe(NUMAB_SKIP_SEQ_COMPLETED,		"seq_completed" )
732
733/* Redefine for export. */
734#undef EM
735#undef EMe
736#define EM(a, b)	TRACE_DEFINE_ENUM(a);
737#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
738
739NUMAB_SKIP_REASON
740
741/* Redefine for symbolic printing. */
742#undef EM
743#undef EMe
744#define EM(a, b)	{ a, b },
745#define EMe(a, b)	{ a, b }
746
747TRACE_EVENT(sched_skip_vma_numa,
748
749	TP_PROTO(struct mm_struct *mm, struct vm_area_struct *vma,
750		 enum numa_vmaskip_reason reason),
751
752	TP_ARGS(mm, vma, reason),
753
754	TP_STRUCT__entry(
755		__field(unsigned long, numa_scan_offset)
756		__field(unsigned long, vm_start)
757		__field(unsigned long, vm_end)
758		__field(enum numa_vmaskip_reason, reason)
759	),
760
761	TP_fast_assign(
762		__entry->numa_scan_offset	= mm->numa_scan_offset;
763		__entry->vm_start		= vma->vm_start;
764		__entry->vm_end			= vma->vm_end;
765		__entry->reason			= reason;
766	),
767
768	TP_printk("numa_scan_offset=%lX vm_start=%lX vm_end=%lX reason=%s",
769		  __entry->numa_scan_offset,
770		  __entry->vm_start,
771		  __entry->vm_end,
772		  __print_symbolic(__entry->reason, NUMAB_SKIP_REASON))
773);
774
775TRACE_EVENT(sched_skip_cpuset_numa,
776
777	TP_PROTO(struct task_struct *tsk, nodemask_t *mem_allowed_ptr),
778
779	TP_ARGS(tsk, mem_allowed_ptr),
780
781	TP_STRUCT__entry(
782		__array( char,		comm,		TASK_COMM_LEN		)
783		__field( pid_t,		pid					)
784		__field( pid_t,		tgid					)
785		__field( pid_t,		ngid					)
786		__array( unsigned long, mem_allowed, BITS_TO_LONGS(MAX_NUMNODES))
787	),
788
789	TP_fast_assign(
790		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
791		__entry->pid		 = task_pid_nr(tsk);
792		__entry->tgid		 = task_tgid_nr(tsk);
793		__entry->ngid		 = task_numa_group_id(tsk);
794		BUILD_BUG_ON(sizeof(nodemask_t) != \
795			     BITS_TO_LONGS(MAX_NUMNODES) * sizeof(long));
796		memcpy(__entry->mem_allowed, mem_allowed_ptr->bits,
797		       sizeof(__entry->mem_allowed));
798	),
799
800	TP_printk("comm=%s pid=%d tgid=%d ngid=%d mem_nodes_allowed=%*pbl",
801		  __entry->comm,
802		  __entry->pid,
803		  __entry->tgid,
804		  __entry->ngid,
805		  MAX_NUMNODES, __entry->mem_allowed)
806);
807#endif /* CONFIG_NUMA_BALANCING */
808
809/*
810 * Tracepoint for waking a polling cpu without an IPI.
811 */
812TRACE_EVENT(sched_wake_idle_without_ipi,
813
814	TP_PROTO(int cpu),
815
816	TP_ARGS(cpu),
817
818	TP_STRUCT__entry(
819		__field(	int,	cpu	)
820	),
821
822	TP_fast_assign(
823		__entry->cpu	= cpu;
824	),
825
826	TP_printk("cpu=%d", __entry->cpu)
827);
828
829/*
830 * Following tracepoints are not exported in tracefs and provide hooking
831 * mechanisms only for testing and debugging purposes.
832 */
833DECLARE_TRACE(pelt_cfs,
834	TP_PROTO(struct cfs_rq *cfs_rq),
835	TP_ARGS(cfs_rq));
836
837DECLARE_TRACE(pelt_rt,
838	TP_PROTO(struct rq *rq),
839	TP_ARGS(rq));
840
841DECLARE_TRACE(pelt_dl,
842	TP_PROTO(struct rq *rq),
843	TP_ARGS(rq));
844
845DECLARE_TRACE(pelt_hw,
846	TP_PROTO(struct rq *rq),
847	TP_ARGS(rq));
848
849DECLARE_TRACE(pelt_irq,
850	TP_PROTO(struct rq *rq),
851	TP_ARGS(rq));
852
853DECLARE_TRACE(pelt_se,
854	TP_PROTO(struct sched_entity *se),
855	TP_ARGS(se));
856
857DECLARE_TRACE(sched_cpu_capacity,
858	TP_PROTO(struct rq *rq),
859	TP_ARGS(rq));
860
861DECLARE_TRACE(sched_overutilized,
862	TP_PROTO(struct root_domain *rd, bool overutilized),
863	TP_ARGS(rd, overutilized));
864
865DECLARE_TRACE(sched_util_est_cfs,
866	TP_PROTO(struct cfs_rq *cfs_rq),
867	TP_ARGS(cfs_rq));
868
869DECLARE_TRACE(sched_util_est_se,
870	TP_PROTO(struct sched_entity *se),
871	TP_ARGS(se));
872
873DECLARE_TRACE(sched_update_nr_running,
874	TP_PROTO(struct rq *rq, int change),
875	TP_ARGS(rq, change));
876
877DECLARE_TRACE(sched_compute_energy,
878	TP_PROTO(struct task_struct *p, int dst_cpu, unsigned long energy,
879		 unsigned long max_util, unsigned long busy_time),
880	TP_ARGS(p, dst_cpu, energy, max_util, busy_time));
881
882DECLARE_TRACE(sched_entry,
883	TP_PROTO(bool preempt),
884	TP_ARGS(preempt));
885
886DECLARE_TRACE(sched_exit,
887	TP_PROTO(bool is_switch),
888	TP_ARGS(is_switch));
889
890DECLARE_TRACE_CONDITION(sched_set_state,
891	TP_PROTO(struct task_struct *tsk, int state),
892	TP_ARGS(tsk, state),
893	TP_CONDITION(!!(tsk->__state) != !!state));
894
895DECLARE_TRACE(sched_set_need_resched,
896	TP_PROTO(struct task_struct *tsk, int cpu, int tif),
897	TP_ARGS(tsk, cpu, tif));
898
899#endif /* _TRACE_SCHED_H */
900
901/* This part must be outside protection */
902#include <trace/define_trace.h>