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path: root/drivers/clocksource/arc_timer.c
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Diffstat (limited to 'drivers/clocksource/arc_timer.c')
-rw-r--r--drivers/clocksource/arc_timer.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clocksource/arc_timer.c b/drivers/clocksource/arc_timer.c
index 20da9b1d7f7d..b28970ca4a7a 100644
--- a/drivers/clocksource/arc_timer.c
+++ b/drivers/clocksource/arc_timer.c
@@ -23,6 +23,7 @@
#include <linux/cpu.h>
#include <linux/of.h>
#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
#include <soc/arc/timers.h>
#include <soc/arc/mcip.h>
@@ -88,6 +89,11 @@ static u64 arc_read_gfrc(struct clocksource *cs)
return (((u64)h) << 32) | l;
}
+static notrace u64 arc_gfrc_clock_read(void)
+{
+ return arc_read_gfrc(NULL);
+}
+
static struct clocksource arc_counter_gfrc = {
.name = "ARConnect GFRC",
.rating = 400,
@@ -111,6 +117,8 @@ static int __init arc_cs_setup_gfrc(struct device_node *node)
if (ret)
return ret;
+ sched_clock_register(arc_gfrc_clock_read, 64, arc_timer_freq);
+
return clocksource_register_hz(&arc_counter_gfrc, arc_timer_freq);
}
TIMER_OF_DECLARE(arc_gfrc, "snps,archs-timer-gfrc", arc_cs_setup_gfrc);
@@ -139,6 +147,11 @@ static u64 arc_read_rtc(struct clocksource *cs)
return (((u64)h) << 32) | l;
}
+static notrace u64 arc_rtc_clock_read(void)
+{
+ return arc_read_rtc(NULL);
+}
+
static struct clocksource arc_counter_rtc = {
.name = "ARCv2 RTC",
.rating = 350,
@@ -170,6 +183,8 @@ static int __init arc_cs_setup_rtc(struct device_node *node)
write_aux_reg(AUX_RTC_CTRL, 1);
+ sched_clock_register(arc_rtc_clock_read, 64, arc_timer_freq);
+
return clocksource_register_hz(&arc_counter_rtc, arc_timer_freq);
}
TIMER_OF_DECLARE(arc_rtc, "snps,archs-timer-rtc", arc_cs_setup_rtc);
@@ -185,6 +200,11 @@ static u64 arc_read_timer1(struct clocksource *cs)
return (u64) read_aux_reg(ARC_REG_TIMER1_CNT);
}
+static notrace u64 arc_timer1_clock_read(void)
+{
+ return arc_read_timer1(NULL);
+}
+
static struct clocksource arc_counter_timer1 = {
.name = "ARC Timer1",
.rating = 300,
@@ -209,6 +229,8 @@ static int __init arc_cs_setup_timer1(struct device_node *node)
write_aux_reg(ARC_REG_TIMER1_CNT, 0);
write_aux_reg(ARC_REG_TIMER1_CTRL, TIMER_CTRL_NH);
+ sched_clock_register(arc_timer1_clock_read, 32, arc_timer_freq);
+
return clocksource_register_hz(&arc_counter_timer1, arc_timer_freq);
}