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-rw-r--r--drivers/clocksource/Makefile1
-rw-r--r--drivers/clocksource/cs5535-clockevt.c3
-rw-r--r--drivers/clocksource/h8300_timer16.c1
-rw-r--r--drivers/clocksource/h8300_timer8.c1
-rw-r--r--drivers/clocksource/h8300_tpu.c1
-rw-r--r--drivers/clocksource/i8253.c1
-rw-r--r--drivers/clocksource/mips-gic-timer.c37
-rw-r--r--drivers/clocksource/numachip.c2
-rw-r--r--drivers/clocksource/tango_xtal.c1
-rw-r--r--drivers/clocksource/tcb_clksrc.c1
-rw-r--r--drivers/clocksource/timer-fttmr010.c1
-rw-r--r--drivers/clocksource/timer-integrator-ap.c4
-rw-r--r--drivers/clocksource/timer-of.h1
-rw-r--r--drivers/clocksource/timer-sp.h1
14 files changed, 46 insertions, 10 deletions
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index dbc1ad14515e..72711f1491e3 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_TIMER_OF) += timer-of.o
obj-$(CONFIG_TIMER_PROBE) += timer-probe.o
obj-$(CONFIG_ATMEL_PIT) += timer-atmel-pit.o
diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index a1df588343f2..1de8cac99a0e 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -117,7 +117,8 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
/* Turn off the clock (and clear the event) */
disable_timer(cs5535_event_clock);
- if (clockevent_state_shutdown(&cs5535_clockevent))
+ if (clockevent_state_detached(&cs5535_clockevent) ||
+ clockevent_state_shutdown(&cs5535_clockevent))
return IRQ_HANDLED;
/* Clear the counter */
diff --git a/drivers/clocksource/h8300_timer16.c b/drivers/clocksource/h8300_timer16.c
index dfbd4f8051cb..86ca91451b2e 100644
--- a/drivers/clocksource/h8300_timer16.c
+++ b/drivers/clocksource/h8300_timer16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* H8/300 16bit Timer driver
*
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
index f6ffb0cef091..1d740a8c42ab 100644
--- a/drivers/clocksource/h8300_timer8.c
+++ b/drivers/clocksource/h8300_timer8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/h8300/kernel/cpu/timer/timer8.c
*
diff --git a/drivers/clocksource/h8300_tpu.c b/drivers/clocksource/h8300_tpu.c
index 45a8d17dac1e..17d4ab0f6ad1 100644
--- a/drivers/clocksource/h8300_tpu.c
+++ b/drivers/clocksource/h8300_tpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* H8S TPU Driver
*
diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c
index 64f6490740d7..9c38895542f4 100644
--- a/drivers/clocksource/i8253.c
+++ b/drivers/clocksource/i8253.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* i8253 PIT clocksource
*/
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index 17b861ea2626..ae3167c28b12 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -10,25 +10,45 @@
#include <linux/cpu.h>
#include <linux/init.h>
#include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/notifier.h>
#include <linux/of_irq.h>
#include <linux/percpu.h>
#include <linux/smp.h>
#include <linux/time.h>
+#include <asm/mips-cps.h>
static DEFINE_PER_CPU(struct clock_event_device, gic_clockevent_device);
static int gic_timer_irq;
static unsigned int gic_frequency;
+static u64 notrace gic_read_count(void)
+{
+ unsigned int hi, hi2, lo;
+
+ if (mips_cm_is64)
+ return read_gic_counter();
+
+ do {
+ hi = read_gic_counter_32h();
+ lo = read_gic_counter_32l();
+ hi2 = read_gic_counter_32h();
+ } while (hi2 != hi);
+
+ return (((u64) hi) << 32) + lo;
+}
+
static int gic_next_event(unsigned long delta, struct clock_event_device *evt)
{
+ unsigned long flags;
u64 cnt;
int res;
cnt = gic_read_count();
cnt += (u64)delta;
- gic_write_cpu_compare(cnt, cpumask_first(evt->cpumask));
+ local_irq_save(flags);
+ write_gic_vl_other(mips_cm_vp_id(cpumask_first(evt->cpumask)));
+ write_gic_vo_compare(cnt);
+ local_irq_restore(flags);
res = ((int)(gic_read_count() - cnt) >= 0) ? -ETIME : 0;
return res;
}
@@ -37,7 +57,7 @@ static irqreturn_t gic_compare_interrupt(int irq, void *dev_id)
{
struct clock_event_device *cd = dev_id;
- gic_write_compare(gic_read_compare());
+ write_gic_vl_compare(read_gic_vl_compare());
cd->event_handler(cd);
return IRQ_HANDLED;
}
@@ -139,10 +159,15 @@ static struct clocksource gic_clocksource = {
static int __init __gic_clocksource_init(void)
{
+ unsigned int count_width;
int ret;
/* Set clocksource mask. */
- gic_clocksource.mask = CLOCKSOURCE_MASK(gic_get_count_width());
+ count_width = read_gic_config() & GIC_CONFIG_COUNTBITS;
+ count_width >>= __fls(GIC_CONFIG_COUNTBITS);
+ count_width *= 4;
+ count_width += 32;
+ gic_clocksource.mask = CLOCKSOURCE_MASK(count_width);
/* Calculate a somewhat reasonable rating value. */
gic_clocksource.rating = 200 + gic_frequency / 10000000;
@@ -159,7 +184,7 @@ static int __init gic_clocksource_of_init(struct device_node *node)
struct clk *clk;
int ret;
- if (!gic_present || !node->parent ||
+ if (!mips_gic_present() || !node->parent ||
!of_device_is_compatible(node->parent, "mti,gic")) {
pr_warn("No DT definition for the mips gic driver\n");
return -ENXIO;
@@ -197,7 +222,7 @@ static int __init gic_clocksource_of_init(struct device_node *node)
}
/* And finally start the counter */
- gic_start_count();
+ clear_gic_config(GIC_CONFIG_COUNTSTOP);
return 0;
}
diff --git a/drivers/clocksource/numachip.c b/drivers/clocksource/numachip.c
index 6a20dc8b253f..9a7d7f0f23fe 100644
--- a/drivers/clocksource/numachip.c
+++ b/drivers/clocksource/numachip.c
@@ -43,7 +43,7 @@ static int numachip2_set_next_event(unsigned long delta, struct clock_event_devi
return 0;
}
-static struct clock_event_device numachip2_clockevent = {
+static const struct clock_event_device numachip2_clockevent __initconst = {
.name = "numachip2",
.rating = 400,
.set_next_event = numachip2_set_next_event,
diff --git a/drivers/clocksource/tango_xtal.c b/drivers/clocksource/tango_xtal.c
index 6a8d9838ce33..3f94e454ef99 100644
--- a/drivers/clocksource/tango_xtal.c
+++ b/drivers/clocksource/tango_xtal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/clocksource.h>
#include <linux/sched_clock.h>
#include <linux/of_address.h>
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 59e8aee0ec16..9de47d4d2d9e 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
index 66dd909960c6..cdf23b628688 100644
--- a/drivers/clocksource/timer-fttmr010.c
+++ b/drivers/clocksource/timer-fttmr010.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Faraday Technology FTTMR010 timer driver
* Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index 2ff64d9d4fb3..62d24690ba02 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -36,8 +36,8 @@ static u64 notrace integrator_read_sched_clock(void)
return -readl(sched_clk_base + TIMER_VALUE);
}
-static int integrator_clocksource_init(unsigned long inrate,
- void __iomem *base)
+static int __init integrator_clocksource_init(unsigned long inrate,
+ void __iomem *base)
{
u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC;
unsigned long rate = inrate;
diff --git a/drivers/clocksource/timer-of.h b/drivers/clocksource/timer-of.h
index e0d727255f72..c6d995ab93d5 100644
--- a/drivers/clocksource/timer-of.h
+++ b/drivers/clocksource/timer-of.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TIMER_OF_H__
#define __TIMER_OF_H__
diff --git a/drivers/clocksource/timer-sp.h b/drivers/clocksource/timer-sp.h
index 050d88561e9c..b2037eb94a41 100644
--- a/drivers/clocksource/timer-sp.h
+++ b/drivers/clocksource/timer-sp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* ARM timer implementation, found in Integrator, Versatile and Realview
* platforms. Not all platforms support all registers and bits in these
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