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timer_list: Print name of per-cpu wakeup device

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With the introduction of per-cpu wakeup devices that can be used in
preference to the broadcast timer, print the name of such devices when
they are available.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210524221818.15850-6-will@kernel.org
This commit is contained in:
Will Deacon 2021-05-24 23:18:18 +01:00 • committed by Thomas Gleixner
parent ea5c7f1b9a
commit 245a057fee
3 changed files with 17 additions and 1 deletions
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10
kernel/time/timer_list.c
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@ -228,6 +228,14 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)
SEQ_printf(m, " event_handler: %ps\n", dev->event_handler);
SEQ_printf(m, "\n");
SEQ_printf(m, " retries: %lu\n", dev->retries);
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
if (cpu >= 0) {
const struct clock_event_device *wd = tick_get_wakeup_device(cpu);
SEQ_printf(m, "Wakeup Device: %s\n", wd ? wd->name : "<NULL>");
}
#endif
SEQ_printf(m, "\n");
}
@ -248,7 +256,7 @@ static void timer_list_show_tickdevices_header(struct seq_file *m)
static inline void timer_list_header(struct seq_file *m, u64 now)
{
SEQ_printf(m, "Timer List Version: v0.8\n");
SEQ_printf(m, "Timer List Version: v0.9\n");
SEQ_printf(m, "HRTIMER_MAX_CLOCK_BASES: %d\n", HRTIMER_MAX_CLOCK_BASES);
SEQ_printf(m, "now at %Ld nsecs\n", (unsigned long long)now);
SEQ_printf(m, "\n");