select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP
+ select GENERIC_SCHED_CLOCK
select GENERIC_SMP_IDLE_THREAD
select GENERIC_IDLE_POLL_SETUP
select GENERIC_STRNCPY_FROM_USER
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/timer-sp.h>
+++ /dev/null
-/*
- * sched_clock.h: support for extending counters to full 64-bit ns counter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef ASM_SCHED_CLOCK
-#define ASM_SCHED_CLOCK
-
-extern void sched_clock_postinit(void);
-extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
-
-extern unsigned long long (*sched_clock_func)(void);
-
-#endif
# Object file lists.
obj-y := elf.o entry-armv.o entry-common.o irq.o opcodes.o \
- process.o ptrace.o return_address.o sched_clock.o \
+ process.o ptrace.o return_address.o \
setup.o signal.o stacktrace.o sys_arm.o time.o traps.o
obj-$(CONFIG_ATAGS) += atags_parse.o
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
+#include <linux/sched_clock.h>
#include <asm/delay.h>
-#include <asm/sched_clock.h>
#include <clocksource/arm_arch_timer.h>
+++ /dev/null
-/*
- * sched_clock.c: support for extending counters to full 64-bit ns counter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/clocksource.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/sched.h>
-#include <linux/syscore_ops.h>
-#include <linux/timer.h>
-
-#include <asm/sched_clock.h>
-
-struct clock_data {
- u64 epoch_ns;
- u32 epoch_cyc;
- u32 epoch_cyc_copy;
- unsigned long rate;
- u32 mult;
- u32 shift;
- bool suspended;
-};
-
-static void sched_clock_poll(unsigned long wrap_ticks);
-static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
-static int irqtime = -1;
-
-core_param(irqtime, irqtime, int, 0400);
-
-static struct clock_data cd = {
- .mult = NSEC_PER_SEC / HZ,
-};
-
-static u32 __read_mostly sched_clock_mask = 0xffffffff;
-
-static u32 notrace jiffy_sched_clock_read(void)
-{
- return (u32)(jiffies - INITIAL_JIFFIES);
-}
-
-static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
-
-static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
-{
- return (cyc * mult) >> shift;
-}
-
-static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask)
-{
- u64 epoch_ns;
- u32 epoch_cyc;
-
- /*
- * Load the epoch_cyc and epoch_ns atomically. We do this by
- * ensuring that we always write epoch_cyc, epoch_ns and
- * epoch_cyc_copy in strict order, and read them in strict order.
- * If epoch_cyc and epoch_cyc_copy are not equal, then we're in
- * the middle of an update, and we should repeat the load.
- */
- do {
- epoch_cyc = cd.epoch_cyc;
- smp_rmb();
- epoch_ns = cd.epoch_ns;
- smp_rmb();
- } while (epoch_cyc != cd.epoch_cyc_copy);
-
- return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift);
-}
-
-/*
- * Atomically update the sched_clock epoch.
- */
-static void notrace update_sched_clock(void)
-{
- unsigned long flags;
- u32 cyc;
- u64 ns;
-
- cyc = read_sched_clock();
- ns = cd.epoch_ns +
- cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
- cd.mult, cd.shift);
- /*
- * Write epoch_cyc and epoch_ns in a way that the update is
- * detectable in cyc_to_fixed_sched_clock().
- */
- raw_local_irq_save(flags);
- cd.epoch_cyc_copy = cyc;
- smp_wmb();
- cd.epoch_ns = ns;
- smp_wmb();
- cd.epoch_cyc = cyc;
- raw_local_irq_restore(flags);
-}
-
-static void sched_clock_poll(unsigned long wrap_ticks)
-{
- mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
- update_sched_clock();
-}
-
-void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
-{
- unsigned long r, w;
- u64 res, wrap;
- char r_unit;
-
- if (cd.rate > rate)
- return;
-
- BUG_ON(bits > 32);
- WARN_ON(!irqs_disabled());
- read_sched_clock = read;
- sched_clock_mask = (1 << bits) - 1;
- cd.rate = rate;
-
- /* calculate the mult/shift to convert counter ticks to ns. */
- clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
-
- r = rate;
- if (r >= 4000000) {
- r /= 1000000;
- r_unit = 'M';
- } else if (r >= 1000) {
- r /= 1000;
- r_unit = 'k';
- } else
- r_unit = ' ';
-
- /* calculate how many ns until we wrap */
- wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
- do_div(wrap, NSEC_PER_MSEC);
- w = wrap;
-
- /* calculate the ns resolution of this counter */
- res = cyc_to_ns(1ULL, cd.mult, cd.shift);
- pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
- bits, r, r_unit, res, w);
-
- /*
- * Start the timer to keep sched_clock() properly updated and
- * sets the initial epoch.
- */
- sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
- update_sched_clock();
-
- /*
- * Ensure that sched_clock() starts off at 0ns
- */
- cd.epoch_ns = 0;
-
- /* Enable IRQ time accounting if we have a fast enough sched_clock */
- if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
- enable_sched_clock_irqtime();
-
- pr_debug("Registered %pF as sched_clock source\n", read);
-}
-
-static unsigned long long notrace sched_clock_32(void)
-{
- u32 cyc = read_sched_clock();
- return cyc_to_sched_clock(cyc, sched_clock_mask);
-}
-
-unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
-
-unsigned long long notrace sched_clock(void)
-{
- if (cd.suspended)
- return cd.epoch_ns;
-
- return sched_clock_func();
-}
-
-void __init sched_clock_postinit(void)
-{
- /*
- * If no sched_clock function has been provided at that point,
- * make it the final one one.
- */
- if (read_sched_clock == jiffy_sched_clock_read)
- setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
-
- sched_clock_poll(sched_clock_timer.data);
-}
-
-static int sched_clock_suspend(void)
-{
- sched_clock_poll(sched_clock_timer.data);
- cd.suspended = true;
- return 0;
-}
-
-static void sched_clock_resume(void)
-{
- cd.epoch_cyc = read_sched_clock();
- cd.epoch_cyc_copy = cd.epoch_cyc;
- cd.suspended = false;
-}
-
-static struct syscore_ops sched_clock_ops = {
- .suspend = sched_clock_suspend,
- .resume = sched_clock_resume,
-};
-
-static int __init sched_clock_syscore_init(void)
-{
- register_syscore_ops(&sched_clock_ops);
- return 0;
-}
-device_initcall(sched_clock_syscore_init);
#include <linux/timer.h>
#include <linux/clocksource.h>
#include <linux/irq.h>
+#include <linux/sched_clock.h>
#include <asm/thread_info.h>
-#include <asm/sched_clock.h>
#include <asm/stacktrace.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
machine_desc->init_time();
else
clocksource_of_init();
-
- sched_clock_postinit();
}
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <linux/clockchips.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <asm/mach/time.h>
#include "common.h"
#include <linux/stat.h>
#include <linux/sys_soc.h>
#include <linux/termios.h>
+#include <linux/sched_clock.h>
#include <video/vga.h>
#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/param.h> /* HZ */
#include <asm/mach-types.h>
-#include <asm/sched_clock.h>
#include <mach/lm.h>
#include <mach/irqs.h>
#include <linux/export.h>
#include <linux/gpio.h>
#include <linux/cpu.h>
+#include <linux/sched_clock.h>
#include <mach/udc.h>
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/irq.h>
-#include <asm/sched_clock.h>
#include <asm/system_misc.h>
#include <asm/mach/map.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <mach/addr-map.h>
#include <mach/regs-timers.h>
#include <mach/regs-apbc.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
#include <asm/localtimer.h>
-#include <asm/sched_clock.h>
#include "common.h"
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/io.h>
+#include <linux/sched_clock.h>
#include <asm/irq.h>
-#include <asm/sched_clock.h>
#include <mach/hardware.h>
#include <asm/mach/irq.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/platform_data/dmtimer-omap.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
#include <asm/smp_twd.h>
-#include <asm/sched_clock.h>
#include "omap_hwmod.h"
#include "omap_device.h"
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/clockchips.h>
+#include <linux/sched_clock.h>
#include <asm/div64.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
#include <mach/regs-ost.h>
#include <mach/irqs.h>
#include <linux/irq.h>
#include <linux/timex.h>
#include <linux/clockchips.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/irq.h>
+#include <linux/sched_clock.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
/* Generic stuff */
-#include <asm/sched_clock.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/export.h>
+#include <linux/sched_clock.h>
#include <mach/hardware.h>
#include <asm/irq.h>
-#include <asm/sched_clock.h>
#include <asm/uaccess.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clocksource.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
#include <plat/counter-32k.h>
#include <linux/clockchips.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
/*
* MBus bridge block registers.
#include <linux/clk.h>
#include <linux/clockchips.h>
#include <linux/platform_device.h>
+#include <linux/sched_clock.h>
#include <asm/smp_twd.h>
#include <asm/mach/time.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-#include <asm/sched_clock.h>
#include <mach/map.h>
#include <plat/devs.h>
*/
#include <linux/kernel.h>
#include <linux/io.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <plat/sched_clock.h>
static void __iomem *ctr;
#include <linux/of_platform.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <asm/irq.h>
#define REG_CONTROL 0x00
*/
#include <linux/clockchips.h>
#include <linux/clksrc-dbx500-prcmu.h>
-
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
#define RATE_32K 32768
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
static void timer_get_base_and_rate(struct device_node *np,
void __iomem **base, u32 *rate)
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/stmp_device.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
/*
* There are 2 versions of the timrot on Freescale MXS-based SoCs.
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/platform_data/clocksource-nomadik-mtu.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
-#include <asm/sched_clock.h>
/*
* The MTU device hosts four different counters, with 4 set of
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/sched_clock.h>
#include <clocksource/samsung_pwm.h>
-#include <asm/sched_clock.h>
/*
* Clocksource driver
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
#include <asm/smp_twd.h>
-#include <asm/sched_clock.h>
#define RTC_SECONDS 0x08
#define RTC_SHADOW_SECONDS 0x0c
#include <linux/of_address.h>
#include <linux/irq.h>
#include <linux/module.h>
+#include <linux/sched_clock.h>
-#include <asm/sched_clock.h>
#include <asm/localtimer.h>
#include <linux/percpu.h>
/*
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
#include <asm/localtimer.h>
#include <asm/mach/time.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
-#include <asm/sched_clock.h>
+#include <linux/sched_clock.h>
#include <asm/mach/time.h>
#define SIRFSOC_TIMER_COUNTER_LO 0x0000
--- /dev/null
+/*
+ * sched_clock.h: support for extending counters to full 64-bit ns counter
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef LINUX_SCHED_CLOCK
+#define LINUX_SCHED_CLOCK
+
+#ifdef CONFIG_GENERIC_SCHED_CLOCK
+extern void sched_clock_postinit(void);
+#else
+static inline void sched_clock_postinit(void) { }
+#endif
+
+extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
+
+extern unsigned long long (*sched_clock_func)(void);
+
+#endif
config HAVE_UNSTABLE_SCHED_CLOCK
bool
+config GENERIC_SCHED_CLOCK
+ bool
+
#
# For architectures that want to enable the support for NUMA-affine scheduler
# balancing logic:
#include <linux/ptrace.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
+#include <linux/sched_clock.h>
#include <asm/io.h>
#include <asm/bugs.h>
softirq_init();
timekeeping_init();
time_init();
+ sched_clock_postinit();
profile_init();
call_function_init();
WARN(!irqs_disabled(), "Interrupts were enabled early\n");
obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD) += clockevents.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS) += tick-common.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += tick-broadcast.o
+obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o
obj-$(CONFIG_TICK_ONESHOT) += tick-sched.o
obj-$(CONFIG_TIMER_STATS) += timer_stats.o
--- /dev/null
+/*
+ * sched_clock.c: support for extending counters to full 64-bit ns counter
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clocksource.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/moduleparam.h>
+#include <linux/sched.h>
+#include <linux/syscore_ops.h>
+#include <linux/timer.h>
+#include <linux/sched_clock.h>
+
+struct clock_data {
+ u64 epoch_ns;
+ u32 epoch_cyc;
+ u32 epoch_cyc_copy;
+ unsigned long rate;
+ u32 mult;
+ u32 shift;
+ bool suspended;
+};
+
+static void sched_clock_poll(unsigned long wrap_ticks);
+static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
+static int irqtime = -1;
+
+core_param(irqtime, irqtime, int, 0400);
+
+static struct clock_data cd = {
+ .mult = NSEC_PER_SEC / HZ,
+};
+
+static u32 __read_mostly sched_clock_mask = 0xffffffff;
+
+static u32 notrace jiffy_sched_clock_read(void)
+{
+ return (u32)(jiffies - INITIAL_JIFFIES);
+}
+
+static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
+
+static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
+{
+ return (cyc * mult) >> shift;
+}
+
+static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask)
+{
+ u64 epoch_ns;
+ u32 epoch_cyc;
+
+ /*
+ * Load the epoch_cyc and epoch_ns atomically. We do this by
+ * ensuring that we always write epoch_cyc, epoch_ns and
+ * epoch_cyc_copy in strict order, and read them in strict order.
+ * If epoch_cyc and epoch_cyc_copy are not equal, then we're in
+ * the middle of an update, and we should repeat the load.
+ */
+ do {
+ epoch_cyc = cd.epoch_cyc;
+ smp_rmb();
+ epoch_ns = cd.epoch_ns;
+ smp_rmb();
+ } while (epoch_cyc != cd.epoch_cyc_copy);
+
+ return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift);
+}
+
+/*
+ * Atomically update the sched_clock epoch.
+ */
+static void notrace update_sched_clock(void)
+{
+ unsigned long flags;
+ u32 cyc;
+ u64 ns;
+
+ cyc = read_sched_clock();
+ ns = cd.epoch_ns +
+ cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
+ cd.mult, cd.shift);
+ /*
+ * Write epoch_cyc and epoch_ns in a way that the update is
+ * detectable in cyc_to_fixed_sched_clock().
+ */
+ raw_local_irq_save(flags);
+ cd.epoch_cyc_copy = cyc;
+ smp_wmb();
+ cd.epoch_ns = ns;
+ smp_wmb();
+ cd.epoch_cyc = cyc;
+ raw_local_irq_restore(flags);
+}
+
+static void sched_clock_poll(unsigned long wrap_ticks)
+{
+ mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
+ update_sched_clock();
+}
+
+void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
+{
+ unsigned long r, w;
+ u64 res, wrap;
+ char r_unit;
+
+ if (cd.rate > rate)
+ return;
+
+ BUG_ON(bits > 32);
+ WARN_ON(!irqs_disabled());
+ read_sched_clock = read;
+ sched_clock_mask = (1 << bits) - 1;
+ cd.rate = rate;
+
+ /* calculate the mult/shift to convert counter ticks to ns. */
+ clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
+
+ r = rate;
+ if (r >= 4000000) {
+ r /= 1000000;
+ r_unit = 'M';
+ } else if (r >= 1000) {
+ r /= 1000;
+ r_unit = 'k';
+ } else
+ r_unit = ' ';
+
+ /* calculate how many ns until we wrap */
+ wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
+ do_div(wrap, NSEC_PER_MSEC);
+ w = wrap;
+
+ /* calculate the ns resolution of this counter */
+ res = cyc_to_ns(1ULL, cd.mult, cd.shift);
+ pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
+ bits, r, r_unit, res, w);
+
+ /*
+ * Start the timer to keep sched_clock() properly updated and
+ * sets the initial epoch.
+ */
+ sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
+ update_sched_clock();
+
+ /*
+ * Ensure that sched_clock() starts off at 0ns
+ */
+ cd.epoch_ns = 0;
+
+ /* Enable IRQ time accounting if we have a fast enough sched_clock */
+ if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
+ enable_sched_clock_irqtime();
+
+ pr_debug("Registered %pF as sched_clock source\n", read);
+}
+
+static unsigned long long notrace sched_clock_32(void)
+{
+ u32 cyc = read_sched_clock();
+ return cyc_to_sched_clock(cyc, sched_clock_mask);
+}
+
+unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
+
+unsigned long long notrace sched_clock(void)
+{
+ if (cd.suspended)
+ return cd.epoch_ns;
+
+ return sched_clock_func();
+}
+
+void __init sched_clock_postinit(void)
+{
+ /*
+ * If no sched_clock function has been provided at that point,
+ * make it the final one one.
+ */
+ if (read_sched_clock == jiffy_sched_clock_read)
+ setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
+
+ sched_clock_poll(sched_clock_timer.data);
+}
+
+static int sched_clock_suspend(void)
+{
+ sched_clock_poll(sched_clock_timer.data);
+ cd.suspended = true;
+ return 0;
+}
+
+static void sched_clock_resume(void)
+{
+ cd.epoch_cyc = read_sched_clock();
+ cd.epoch_cyc_copy = cd.epoch_cyc;
+ cd.suspended = false;
+}
+
+static struct syscore_ops sched_clock_ops = {
+ .suspend = sched_clock_suspend,
+ .resume = sched_clock_resume,
+};
+
+static int __init sched_clock_syscore_init(void)
+{
+ register_syscore_ops(&sched_clock_ops);
+ return 0;
+}
+device_initcall(sched_clock_syscore_init);