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authorThomas Gleixner <tglx@linutronix.de>2017-03-31 09:48:00 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-03-31 09:48:00 +0200
commit9005615bafbe03075f4e4fe10874b7abe1918782 (patch)
tree25e73a4d8de8266346bb140b75ba0436080e5ab3 /kernel/time
parent016da20148a1692e34d35d1f1787400a2a2d2c58 (diff)
parent0107042768658fea9f5f5a9c00b1c90f5dab6a06 (diff)
Merge branch 'fortglx/4.12/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeeping changes from John Stultz: Main changes are the initial steps of Nicoli's work to make the clockevent timers be corrected for NTP adjustments. Then a few smaller fixes that I've queued, and adding Stephen Boyd to the maintainers list for timekeeping.
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/clockevents.c2
-rw-r--r--kernel/time/sched_clock.c5
-rw-r--r--kernel/time/timer_list.c6
3 files changed, 12 insertions, 1 deletions
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 97ac0951f164..4237e0744e26 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -468,7 +468,7 @@ void clockevents_register_device(struct clock_event_device *dev)
}
EXPORT_SYMBOL_GPL(clockevents_register_device);
-void clockevents_config(struct clock_event_device *dev, u32 freq)
+static void clockevents_config(struct clock_event_device *dev, u32 freq)
{
u64 sec;
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index ea6b610c4c57..2d8f05aad442 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -206,6 +206,11 @@ sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
update_clock_read_data(&rd);
+ if (sched_clock_timer.function != NULL) {
+ /* update timeout for clock wrap */
+ hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL);
+ }
+
r = rate;
if (r >= 4000000) {
r /= 1000000;
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index ff8d5c13d04b..0e7f5428a148 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/kallsyms.h>
+#include <linux/nmi.h>
#include <linux/uaccess.h>
@@ -86,6 +87,9 @@ print_active_timers(struct seq_file *m, struct hrtimer_clock_base *base,
next_one:
i = 0;
+
+ touch_nmi_watchdog();
+
raw_spin_lock_irqsave(&base->cpu_base->lock, flags);
curr = timerqueue_getnext(&base->active);
@@ -197,6 +201,8 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)
{
struct clock_event_device *dev = td->evtdev;
+ touch_nmi_watchdog();
+
SEQ_printf(m, "Tick Device: mode: %d\n", td->mode);
if (cpu < 0)
SEQ_printf(m, "Broadcast device\n");