1 // SPDX-License-Identifier: GPL-2.0
18 #include "tick-internal.h"
21 	int cpu;  member
28  * to the console (on SysRq-Q):
49 	SEQ_printf(m, " #%d: <%pK>, %ps", idx, taddr, timer->function);  in print_timer()
50 	SEQ_printf(m, ", S:%02x", timer->state);  in print_timer()
52 	SEQ_printf(m, " # expires at %Lu-%Lu nsecs [in %Ld to %Ld nsecs]\n",  in print_timer()
55 		(long long)(ktime_to_ns(hrtimer_get_softexpires(timer)) - now),  in print_timer()
56 		(long long)(ktime_to_ns(hrtimer_get_expires(timer)) - now));  in print_timer()
73 	raw_spin_lock_irqsave(&base->cpu_base->lock, flags);  in print_active_timers()
75 	curr = timerqueue_getnext(&base->active);  in print_active_timers()
89 		raw_spin_unlock_irqrestore(&base->cpu_base->lock, flags);  in print_active_timers()
95 	raw_spin_unlock_irqrestore(&base->cpu_base->lock, flags);  in print_active_timers()
102 	SEQ_printf(m, "  .index:      %d\n", base->index);  in print_base()
106 	SEQ_printf(m,   "  .get_time:   %ps\n", base->get_time);  in print_base()
108 	SEQ_printf(m, "  .offset:     %Lu nsecs\n",  in print_base()
109 		   (unsigned long long) ktime_to_ns(base->offset));  in print_base()
112 	print_active_timers(m, base, now + ktime_to_ns(base->offset));  in print_base()
115 static void print_cpu(struct seq_file *m, int cpu, u64 now)  in print_cpu()  argument
117 	struct hrtimer_cpu_base *cpu_base = &per_cpu(hrtimer_bases, cpu);  in print_cpu()
120 	SEQ_printf(m, "cpu: %d\n", cpu);  in print_cpu()
123 		print_base(m, cpu_base->clock_base + i, now);  in print_cpu()
126 	SEQ_printf(m, "  .%-15s: %Lu\n", #x, \  in print_cpu()
127 		   (unsigned long long)(cpu_base->x))  in print_cpu()
129 	SEQ_printf(m, "  .%-15s: %Lu nsecs\n", #x, \  in print_cpu()
130 		   (unsigned long long)(ktime_to_ns(cpu_base->x)))  in print_cpu()
145 	SEQ_printf(m, "  .%-15s: %Lu\n", #x, \  in print_cpu()
146 		   (unsigned long long)(ts->x))  in print_cpu()
148 	SEQ_printf(m, "  .%-15s: %Lu nsecs\n", #x, \  in print_cpu()
149 		   (unsigned long long)(ktime_to_ns(ts->x)))  in print_cpu()
151 	SEQ_printf(m, "  .%-15s: %d\n", #x, !!(ts->flags & (f)))  in print_cpu()
154 		struct tick_sched *ts = tick_get_tick_sched(cpu);  in print_cpu()
182 print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)  in print_tickdevice()  argument
184 	struct clock_event_device *dev = td->evtdev;  in print_tickdevice()
188 	SEQ_printf(m, "Tick Device: mode:     %d\n", td->mode);  in print_tickdevice()
189 	if (cpu < 0)  in print_tickdevice()
192 		SEQ_printf(m, "Per CPU device: %d\n", cpu);  in print_tickdevice()
199 	SEQ_printf(m, "%s\n", dev->name);  in print_tickdevice()
201 		   (unsigned long long) dev->max_delta_ns);  in print_tickdevice()
203 		   (unsigned long long) dev->min_delta_ns);  in print_tickdevice()
204 	SEQ_printf(m, " mult:           %u\n", dev->mult);  in print_tickdevice()
205 	SEQ_printf(m, " shift:          %u\n", dev->shift);  in print_tickdevice()
208 		   (unsigned long long) ktime_to_ns(dev->next_event));  in print_tickdevice()
210 	SEQ_printf(m, " set_next_event: %ps\n", dev->set_next_event);  in print_tickdevice()
212 	if (dev->set_state_shutdown)  in print_tickdevice()
214 			dev->set_state_shutdown);  in print_tickdevice()
216 	if (dev->set_state_periodic)  in print_tickdevice()
218 			dev->set_state_periodic);  in print_tickdevice()
220 	if (dev->set_state_oneshot)  in print_tickdevice()
222 			dev->set_state_oneshot);  in print_tickdevice()
224 	if (dev->set_state_oneshot_stopped)  in print_tickdevice()
226 			dev->set_state_oneshot_stopped);  in print_tickdevice()
228 	if (dev->tick_resume)  in print_tickdevice()
230 			dev->tick_resume);  in print_tickdevice()
232 	SEQ_printf(m, " event_handler:  %ps\n", dev->event_handler);  in print_tickdevice()
234 	SEQ_printf(m, " retries:        %lu\n", dev->retries);  in print_tickdevice()
237 	if (cpu >= 0) {  in print_tickdevice()
238 		const struct clock_event_device *wd = tick_get_wakeup_device(cpu);  in print_tickdevice()
240 		SEQ_printf(m, "Wakeup Device: %s\n", wd ? wd->name : "<NULL>");  in print_tickdevice()
249 	print_tickdevice(m, tick_get_broadcast_device(), -1);  in timer_list_show_tickdevices_header()
272 	int cpu;  in sysrq_timer_list_show()  local
276 	for_each_online_cpu(cpu)  in sysrq_timer_list_show()
277 		print_cpu(NULL, cpu, now);  in sysrq_timer_list_show()
281 	for_each_online_cpu(cpu)  in sysrq_timer_list_show()
282 		print_tickdevice(NULL, tick_get_device(cpu), cpu);  in sysrq_timer_list_show()
292 	if (iter->cpu == -1 && !iter->second_pass)  in timer_list_show()
293 		timer_list_header(m, iter->now);  in timer_list_show()
294 	else if (!iter->second_pass)  in timer_list_show()
295 		print_cpu(m, iter->cpu, iter->now);  in timer_list_show()
297 	else if (iter->cpu == -1 && iter->second_pass)  in timer_list_show()
300 		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);  in timer_list_show()
305 static void *move_iter(struct timer_list_iter *iter, loff_t offset)  in move_iter()  argument
307 	for (; offset; offset--) {  in move_iter()
308 		iter->cpu = cpumask_next(iter->cpu, cpu_online_mask);  in move_iter()
309 		if (iter->cpu >= nr_cpu_ids) {  in move_iter()
311 			if (!iter->second_pass) {  in move_iter()
312 				iter->cpu = -1;  in move_iter()
313 				iter->second_pass = true;  in move_iter()
324 static void *timer_list_start(struct seq_file *file, loff_t *offset)  in timer_list_start()  argument
326 	struct timer_list_iter *iter = file->private;  in timer_list_start()
328 	if (!*offset)  in timer_list_start()
329 		iter->now = ktime_to_ns(ktime_get());  in timer_list_start()
330 	iter->cpu = -1;  in timer_list_start()
331 	iter->second_pass = false;  in timer_list_start()
332 	return move_iter(iter, *offset);  in timer_list_start()
335 static void *timer_list_next(struct seq_file *file, void *v, loff_t *offset)  in timer_list_next()  argument
337 	struct timer_list_iter *iter = file->private;  in timer_list_next()
338 	++*offset;  in timer_list_next()
360 		return -ENOMEM;  in init_timer_list_procfs()