1 // SPDX-License-Identifier: GPL-2.0
18 #include "tick-internal.h"
21 	int cpu;  member
28  * to the console (on SysRq-Q):
62 	print_name_offset(m, timer->function);  in print_timer()
63 	SEQ_printf(m, ", S:%02x", timer->state);  in print_timer()
65 	SEQ_printf(m, " # expires at %Lu-%Lu nsecs [in %Ld to %Ld nsecs]\n",  in print_timer()
68 		(long long)(ktime_to_ns(hrtimer_get_softexpires(timer)) - now),  in print_timer()
69 		(long long)(ktime_to_ns(hrtimer_get_expires(timer)) - now));  in print_timer()
86 	raw_spin_lock_irqsave(&base->cpu_base->lock, flags);  in print_active_timers()
88 	curr = timerqueue_getnext(&base->active);  in print_active_timers()
102 		raw_spin_unlock_irqrestore(&base->cpu_base->lock, flags);  in print_active_timers()
108 	raw_spin_unlock_irqrestore(&base->cpu_base->lock, flags);  in print_active_timers()
115 	SEQ_printf(m, "  .index:      %d\n", base->index);  in print_base()
120 	print_name_offset(m, base->get_time);  in print_base()
123 	SEQ_printf(m, "  .offset:     %Lu nsecs\n",  in print_base()
124 		   (unsigned long long) ktime_to_ns(base->offset));  in print_base()
127 	print_active_timers(m, base, now + ktime_to_ns(base->offset));  in print_base()
130 static void print_cpu(struct seq_file *m, int cpu, u64 now)  in print_cpu()  argument
132 	struct hrtimer_cpu_base *cpu_base = &per_cpu(hrtimer_bases, cpu);  in print_cpu()
135 	SEQ_printf(m, "cpu: %d\n", cpu);  in print_cpu()
138 		print_base(m, cpu_base->clock_base + i, now);  in print_cpu()
141 	SEQ_printf(m, "  .%-15s: %Lu\n", #x, \  in print_cpu()
142 		   (unsigned long long)(cpu_base->x))  in print_cpu()
144 	SEQ_printf(m, "  .%-15s: %Lu nsecs\n", #x, \  in print_cpu()
145 		   (unsigned long long)(ktime_to_ns(cpu_base->x)))  in print_cpu()
160 	SEQ_printf(m, "  .%-15s: %Lu\n", #x, \  in print_cpu()
161 		   (unsigned long long)(ts->x))  in print_cpu()
163 	SEQ_printf(m, "  .%-15s: %Lu nsecs\n", #x, \  in print_cpu()
164 		   (unsigned long long)(ktime_to_ns(ts->x)))  in print_cpu()
166 		struct tick_sched *ts = tick_get_tick_sched(cpu);  in print_cpu()
193 print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)  in print_tickdevice()  argument
195 	struct clock_event_device *dev = td->evtdev;  in print_tickdevice()
199 	SEQ_printf(m, "Tick Device: mode:     %d\n", td->mode);  in print_tickdevice()
200 	if (cpu < 0)  in print_tickdevice()
203 		SEQ_printf(m, "Per CPU device: %d\n", cpu);  in print_tickdevice()
210 	SEQ_printf(m, "%s\n", dev->name);  in print_tickdevice()
212 		   (unsigned long long) dev->max_delta_ns);  in print_tickdevice()
214 		   (unsigned long long) dev->min_delta_ns);  in print_tickdevice()
215 	SEQ_printf(m, " mult:           %u\n", dev->mult);  in print_tickdevice()
216 	SEQ_printf(m, " shift:          %u\n", dev->shift);  in print_tickdevice()
219 		   (unsigned long long) ktime_to_ns(dev->next_event));  in print_tickdevice()
222 	print_name_offset(m, dev->set_next_event);  in print_tickdevice()
225 	if (dev->set_state_shutdown) {  in print_tickdevice()
227 		print_name_offset(m, dev->set_state_shutdown);  in print_tickdevice()
231 	if (dev->set_state_periodic) {  in print_tickdevice()
233 		print_name_offset(m, dev->set_state_periodic);  in print_tickdevice()
237 	if (dev->set_state_oneshot) {  in print_tickdevice()
239 		print_name_offset(m, dev->set_state_oneshot);  in print_tickdevice()
243 	if (dev->set_state_oneshot_stopped) {  in print_tickdevice()
245 		print_name_offset(m, dev->set_state_oneshot_stopped);  in print_tickdevice()
249 	if (dev->tick_resume) {  in print_tickdevice()
251 		print_name_offset(m, dev->tick_resume);  in print_tickdevice()
256 	print_name_offset(m, dev->event_handler);  in print_tickdevice()
258 	SEQ_printf(m, " retries:        %lu\n", dev->retries);  in print_tickdevice()
265 	print_tickdevice(m, tick_get_broadcast_device(), -1);  in timer_list_show_tickdevices_header()
288 	int cpu;  in sysrq_timer_list_show()  local
292 	for_each_online_cpu(cpu)  in sysrq_timer_list_show()
293 		print_cpu(NULL, cpu, now);  in sysrq_timer_list_show()
297 	for_each_online_cpu(cpu)  in sysrq_timer_list_show()
298 		print_tickdevice(NULL, tick_get_device(cpu), cpu);  in sysrq_timer_list_show()
308 	if (iter->cpu == -1 && !iter->second_pass)  in timer_list_show()
309 		timer_list_header(m, iter->now);  in timer_list_show()
310 	else if (!iter->second_pass)  in timer_list_show()
311 		print_cpu(m, iter->cpu, iter->now);  in timer_list_show()
313 	else if (iter->cpu == -1 && iter->second_pass)  in timer_list_show()
316 		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);  in timer_list_show()
321 static void *move_iter(struct timer_list_iter *iter, loff_t offset)  in move_iter()  argument
323 	for (; offset; offset--) {  in move_iter()
324 		iter->cpu = cpumask_next(iter->cpu, cpu_online_mask);  in move_iter()
325 		if (iter->cpu >= nr_cpu_ids) {  in move_iter()
327 			if (!iter->second_pass) {  in move_iter()
328 				iter->cpu = -1;  in move_iter()
329 				iter->second_pass = true;  in move_iter()
340 static void *timer_list_start(struct seq_file *file, loff_t *offset)  in timer_list_start()  argument
342 	struct timer_list_iter *iter = file->private;  in timer_list_start()
344 	if (!*offset)  in timer_list_start()
345 		iter->now = ktime_to_ns(ktime_get());  in timer_list_start()
346 	iter->cpu = -1;  in timer_list_start()
347 	iter->second_pass = false;  in timer_list_start()
348 	return move_iter(iter, *offset);  in timer_list_start()
351 static void *timer_list_next(struct seq_file *file, void *v, loff_t *offset)  in timer_list_next()  argument
353 	struct timer_list_iter *iter = file->private;  in timer_list_next()
354 	++*offset;  in timer_list_next()
376 		return -ENOMEM;  in init_timer_list_procfs()