| /* SPDX-License-Identifier: GPL-2.0 */ |
| #undef TRACE_SYSTEM |
| #define TRACE_SYSTEM timer |
| |
| #if !defined(_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ) |
| #define _TRACE_TIMER_H |
| |
| #include <linux/tracepoint.h> |
| #include <linux/hrtimer.h> |
| #include <linux/timer.h> |
| |
| DECLARE_EVENT_CLASS(timer_class, |
| |
| TP_PROTO(struct timer_list *timer), |
| |
| TP_ARGS(timer), |
| |
| TP_STRUCT__entry( |
| __field( void *, timer ) |
| ), |
| |
| TP_fast_assign( |
| __entry->timer = timer; |
| ), |
| |
| TP_printk("timer=%p", __entry->timer) |
| ); |
| |
| /** |
| * timer_init - called when the timer is initialized |
| * @timer: pointer to struct timer_list |
| */ |
| DEFINE_EVENT(timer_class, timer_init, |
| |
| TP_PROTO(struct timer_list *timer), |
| |
| TP_ARGS(timer) |
| ); |
| |
| #define decode_timer_flags(flags) \ |
| __print_flags(flags, "|", \ |
| { TIMER_MIGRATING, "M" }, \ |
| { TIMER_DEFERRABLE, "D" }, \ |
| { TIMER_PINNED, "P" }, \ |
| { TIMER_IRQSAFE, "I" }) |
| |
| /** |
| * timer_start - called when the timer is started |
| * @timer: pointer to struct timer_list |
| * @expires: the timers expiry time |
| */ |
| TRACE_EVENT(timer_start, |
| |
| TP_PROTO(struct timer_list *timer, |
| unsigned long expires, |
| unsigned int flags), |
| |
| TP_ARGS(timer, expires, flags), |
| |
| TP_STRUCT__entry( |
| __field( void *, timer ) |
| __field( void *, function ) |
| __field( unsigned long, expires ) |
| __field( unsigned long, now ) |
| __field( unsigned int, flags ) |
| ), |
| |
| TP_fast_assign( |
| __entry->timer = timer; |
| __entry->function = timer->function; |
| __entry->expires = expires; |
| __entry->now = jiffies; |
| __entry->flags = flags; |
| ), |
| |
| TP_printk("timer=%p function=%ps expires=%lu [timeout=%ld] cpu=%u idx=%u flags=%s", |
| __entry->timer, __entry->function, __entry->expires, |
| (long)__entry->expires - __entry->now, |
| __entry->flags & TIMER_CPUMASK, |
| __entry->flags >> TIMER_ARRAYSHIFT, |
| decode_timer_flags(__entry->flags & TIMER_TRACE_FLAGMASK)) |
| ); |
| |
| /** |
| * timer_expire_entry - called immediately before the timer callback |
| * @timer: pointer to struct timer_list |
| * |
| * Allows to determine the timer latency. |
| */ |
| TRACE_EVENT(timer_expire_entry, |
| |
| TP_PROTO(struct timer_list *timer, unsigned long baseclk), |
| |
| TP_ARGS(timer, baseclk), |
| |
| TP_STRUCT__entry( |
| __field( void *, timer ) |
| __field( unsigned long, now ) |
| __field( void *, function) |
| __field( unsigned long, baseclk ) |
| ), |
| |
| TP_fast_assign( |
| __entry->timer = timer; |
| __entry->now = jiffies; |
| __entry->function = timer->function; |
| __entry->baseclk = baseclk; |
| ), |
| |
| TP_printk("timer=%p function=%ps now=%lu baseclk=%lu", |
| __entry->timer, __entry->function, __entry->now, |
| __entry->baseclk) |
| ); |
| |
| /** |
| * timer_expire_exit - called immediately after the timer callback returns |
| * @timer: pointer to struct timer_list |
| * |
| * When used in combination with the timer_expire_entry tracepoint we can |
| * determine the runtime of the timer callback function. |
| * |
| * NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might |
| * be invalid. We solely track the pointer. |
| */ |
| DEFINE_EVENT(timer_class, timer_expire_exit, |
| |
| TP_PROTO(struct timer_list *timer), |
| |
| TP_ARGS(timer) |
| ); |
| |
| /** |
| * timer_cancel - called when the timer is canceled |
| * @timer: pointer to struct timer_list |
| */ |
| DEFINE_EVENT(timer_class, timer_cancel, |
| |
| TP_PROTO(struct timer_list *timer), |
| |
| TP_ARGS(timer) |
| ); |
| |
| #define decode_clockid(type) \ |
| __print_symbolic(type, \ |
| { CLOCK_REALTIME, "CLOCK_REALTIME" }, \ |
| { CLOCK_MONOTONIC, "CLOCK_MONOTONIC" }, \ |
| { CLOCK_BOOTTIME, "CLOCK_BOOTTIME" }, \ |
| { CLOCK_TAI, "CLOCK_TAI" }) |
| |
| #define decode_hrtimer_mode(mode) \ |
| __print_symbolic(mode, \ |
| { HRTIMER_MODE_ABS, "ABS" }, \ |
| { HRTIMER_MODE_REL, "REL" }, \ |
| { HRTIMER_MODE_ABS_PINNED, "ABS|PINNED" }, \ |
| { HRTIMER_MODE_REL_PINNED, "REL|PINNED" }, \ |
| { HRTIMER_MODE_ABS_SOFT, "ABS|SOFT" }, \ |
| { HRTIMER_MODE_REL_SOFT, "REL|SOFT" }, \ |
| { HRTIMER_MODE_ABS_PINNED_SOFT, "ABS|PINNED|SOFT" }, \ |
| { HRTIMER_MODE_REL_PINNED_SOFT, "REL|PINNED|SOFT" }) |
| |
| /** |
| * hrtimer_init - called when the hrtimer is initialized |
| * @hrtimer: pointer to struct hrtimer |
| * @clockid: the hrtimers clock |
| * @mode: the hrtimers mode |
| */ |
| TRACE_EVENT(hrtimer_init, |
| |
| TP_PROTO(struct hrtimer *hrtimer, clockid_t clockid, |
| enum hrtimer_mode mode), |
| |
| TP_ARGS(hrtimer, clockid, mode), |
| |
| TP_STRUCT__entry( |
| __field( void *, hrtimer ) |
| __field( clockid_t, clockid ) |
| __field( enum hrtimer_mode, mode ) |
| ), |
| |
| TP_fast_assign( |
| __entry->hrtimer = hrtimer; |
| __entry->clockid = clockid; |
| __entry->mode = mode; |
| ), |
| |
| TP_printk("hrtimer=%p clockid=%s mode=%s", __entry->hrtimer, |
| decode_clockid(__entry->clockid), |
| decode_hrtimer_mode(__entry->mode)) |
| ); |
| |
| /** |
| * hrtimer_start - called when the hrtimer is started |
| * @hrtimer: pointer to struct hrtimer |
| */ |
| TRACE_EVENT(hrtimer_start, |
| |
| TP_PROTO(struct hrtimer *hrtimer, enum hrtimer_mode mode), |
| |
| TP_ARGS(hrtimer, mode), |
| |
| TP_STRUCT__entry( |
| __field( void *, hrtimer ) |
| __field( void *, function ) |
| __field( s64, expires ) |
| __field( s64, softexpires ) |
| __field( enum hrtimer_mode, mode ) |
| ), |
| |
| TP_fast_assign( |
| __entry->hrtimer = hrtimer; |
| __entry->function = hrtimer->function; |
| __entry->expires = hrtimer_get_expires(hrtimer); |
| __entry->softexpires = hrtimer_get_softexpires(hrtimer); |
| __entry->mode = mode; |
| ), |
| |
| TP_printk("hrtimer=%p function=%ps expires=%llu softexpires=%llu " |
| "mode=%s", __entry->hrtimer, __entry->function, |
| (unsigned long long) __entry->expires, |
| (unsigned long long) __entry->softexpires, |
| decode_hrtimer_mode(__entry->mode)) |
| ); |
| |
| /** |
| * hrtimer_expire_entry - called immediately before the hrtimer callback |
| * @hrtimer: pointer to struct hrtimer |
| * @now: pointer to variable which contains current time of the |
| * timers base. |
| * |
| * Allows to determine the timer latency. |
| */ |
| TRACE_EVENT(hrtimer_expire_entry, |
| |
| TP_PROTO(struct hrtimer *hrtimer, ktime_t *now), |
| |
| TP_ARGS(hrtimer, now), |
| |
| TP_STRUCT__entry( |
| __field( void *, hrtimer ) |
| __field( s64, now ) |
| __field( void *, function) |
| ), |
| |
| TP_fast_assign( |
| __entry->hrtimer = hrtimer; |
| __entry->now = *now; |
| __entry->function = hrtimer->function; |
| ), |
| |
| TP_printk("hrtimer=%p function=%ps now=%llu", |
| __entry->hrtimer, __entry->function, |
| (unsigned long long) __entry->now) |
| ); |
| |
| DECLARE_EVENT_CLASS(hrtimer_class, |
| |
| TP_PROTO(struct hrtimer *hrtimer), |
| |
| TP_ARGS(hrtimer), |
| |
| TP_STRUCT__entry( |
| __field( void *, hrtimer ) |
| ), |
| |
| TP_fast_assign( |
| __entry->hrtimer = hrtimer; |
| ), |
| |
| TP_printk("hrtimer=%p", __entry->hrtimer) |
| ); |
| |
| /** |
| * hrtimer_expire_exit - called immediately after the hrtimer callback returns |
| * @hrtimer: pointer to struct hrtimer |
| * |
| * When used in combination with the hrtimer_expire_entry tracepoint we can |
| * determine the runtime of the callback function. |
| */ |
| DEFINE_EVENT(hrtimer_class, hrtimer_expire_exit, |
| |
| TP_PROTO(struct hrtimer *hrtimer), |
| |
| TP_ARGS(hrtimer) |
| ); |
| |
| /** |
| * hrtimer_cancel - called when the hrtimer is canceled |
| * @hrtimer: pointer to struct hrtimer |
| */ |
| DEFINE_EVENT(hrtimer_class, hrtimer_cancel, |
| |
| TP_PROTO(struct hrtimer *hrtimer), |
| |
| TP_ARGS(hrtimer) |
| ); |
| |
| /** |
| * itimer_state - called when itimer is started or canceled |
| * @which: name of the interval timer |
| * @value: the itimers value, itimer is canceled if value->it_value is |
| * zero, otherwise it is started |
| * @expires: the itimers expiry time |
| */ |
| TRACE_EVENT(itimer_state, |
| |
| TP_PROTO(int which, const struct itimerval *const value, |
| unsigned long long expires), |
| |
| TP_ARGS(which, value, expires), |
| |
| TP_STRUCT__entry( |
| __field( int, which ) |
| __field( unsigned long long, expires ) |
| __field( long, value_sec ) |
| __field( long, value_usec ) |
| __field( long, interval_sec ) |
| __field( long, interval_usec ) |
| ), |
| |
| TP_fast_assign( |
| __entry->which = which; |
| __entry->expires = expires; |
| __entry->value_sec = value->it_value.tv_sec; |
| __entry->value_usec = value->it_value.tv_usec; |
| __entry->interval_sec = value->it_interval.tv_sec; |
| __entry->interval_usec = value->it_interval.tv_usec; |
| ), |
| |
| TP_printk("which=%d expires=%llu it_value=%ld.%ld it_interval=%ld.%ld", |
| __entry->which, __entry->expires, |
| __entry->value_sec, __entry->value_usec, |
| __entry->interval_sec, __entry->interval_usec) |
| ); |
| |
| /** |
| * itimer_expire - called when itimer expires |
| * @which: type of the interval timer |
| * @pid: pid of the process which owns the timer |
| * @now: current time, used to calculate the latency of itimer |
| */ |
| TRACE_EVENT(itimer_expire, |
| |
| TP_PROTO(int which, struct pid *pid, unsigned long long now), |
| |
| TP_ARGS(which, pid, now), |
| |
| TP_STRUCT__entry( |
| __field( int , which ) |
| __field( pid_t, pid ) |
| __field( unsigned long long, now ) |
| ), |
| |
| TP_fast_assign( |
| __entry->which = which; |
| __entry->now = now; |
| __entry->pid = pid_nr(pid); |
| ), |
| |
| TP_printk("which=%d pid=%d now=%llu", __entry->which, |
| (int) __entry->pid, __entry->now) |
| ); |
| |
| #ifdef CONFIG_NO_HZ_COMMON |
| |
| #define TICK_DEP_NAMES \ |
| tick_dep_mask_name(NONE) \ |
| tick_dep_name(POSIX_TIMER) \ |
| tick_dep_name(PERF_EVENTS) \ |
| tick_dep_name(SCHED) \ |
| tick_dep_name_end(CLOCK_UNSTABLE) |
| |
| #undef tick_dep_name |
| #undef tick_dep_mask_name |
| #undef tick_dep_name_end |
| |
| /* The MASK will convert to their bits and they need to be processed too */ |
| #define tick_dep_name(sdep) TRACE_DEFINE_ENUM(TICK_DEP_BIT_##sdep); \ |
| TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep); |
| #define tick_dep_name_end(sdep) TRACE_DEFINE_ENUM(TICK_DEP_BIT_##sdep); \ |
| TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep); |
| /* NONE only has a mask defined for it */ |
| #define tick_dep_mask_name(sdep) TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep); |
| |
| TICK_DEP_NAMES |
| |
| #undef tick_dep_name |
| #undef tick_dep_mask_name |
| #undef tick_dep_name_end |
| |
| #define tick_dep_name(sdep) { TICK_DEP_MASK_##sdep, #sdep }, |
| #define tick_dep_mask_name(sdep) { TICK_DEP_MASK_##sdep, #sdep }, |
| #define tick_dep_name_end(sdep) { TICK_DEP_MASK_##sdep, #sdep } |
| |
| #define show_tick_dep_name(val) \ |
| __print_symbolic(val, TICK_DEP_NAMES) |
| |
| TRACE_EVENT(tick_stop, |
| |
| TP_PROTO(int success, int dependency), |
| |
| TP_ARGS(success, dependency), |
| |
| TP_STRUCT__entry( |
| __field( int , success ) |
| __field( int , dependency ) |
| ), |
| |
| TP_fast_assign( |
| __entry->success = success; |
| __entry->dependency = dependency; |
| ), |
| |
| TP_printk("success=%d dependency=%s", __entry->success, \ |
| show_tick_dep_name(__entry->dependency)) |
| ); |
| #endif |
| |
| #endif /* _TRACE_TIMER_H */ |
| |
| /* This part must be outside protection */ |
| #include <trace/define_trace.h> |