This is now fully generic, and used both by _32 and _64 variants.
Rename it accordingly.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
obj-y := debugtraps.o idle.o io.o io_generic.o irq.o \
machvec.o process_32.o ptrace_32.o setup.o signal_32.o \
- sys_sh.o sys_sh32.o syscalls_32.o time_32.o topology.o \
+ sys_sh.o sys_sh32.o syscalls_32.o time.o topology.o \
traps.o traps_32.o
obj-y += cpu/ timers/
obj-y := debugtraps.o idle.o io.o io_generic.o irq.o machvec.o process_64.o \
ptrace_64.o setup.o signal_64.o sys_sh.o sys_sh64.o \
- syscalls_64.o time_32.o topology.o traps.o traps_64.o
+ syscalls_64.o time.o topology.o traps.o traps_64.o
obj-y += cpu/ timers/
obj-$(CONFIG_VSYSCALL) += vsyscall/
--- /dev/null
+/*
+ * arch/sh/kernel/time_32.c
+ *
+ * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
+ * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ * Copyright (C) 2002 - 2009 Paul Mundt
+ * Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org>
+ *
+ * Some code taken from i386 version.
+ * Copyright (C) 1991, 1992, 1995 Linus Torvalds
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/profile.h>
+#include <linux/timex.h>
+#include <linux/sched.h>
+#include <linux/clockchips.h>
+#include <linux/mc146818rtc.h> /* for rtc_lock */
+#include <linux/platform_device.h>
+#include <linux/smp.h>
+#include <linux/rtc.h>
+#include <asm/clock.h>
+#include <asm/rtc.h>
+#include <asm/timer.h>
+#include <asm/kgdb.h>
+
+struct sys_timer *sys_timer;
+
+/* Move this somewhere more sensible.. */
+DEFINE_SPINLOCK(rtc_lock);
+EXPORT_SYMBOL(rtc_lock);
+
+/* Dummy RTC ops */
+static void null_rtc_get_time(struct timespec *tv)
+{
+ tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
+ tv->tv_nsec = 0;
+}
+
+static int null_rtc_set_time(const time_t secs)
+{
+ return 0;
+}
+
+void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
+int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
+
+unsigned int get_rtc_time(struct rtc_time *tm)
+{
+ if (rtc_sh_get_time != null_rtc_get_time) {
+ struct timespec tv;
+
+ rtc_sh_get_time(&tv);
+ rtc_time_to_tm(tv.tv_sec, tm);
+ }
+
+ return RTC_24H;
+}
+EXPORT_SYMBOL(get_rtc_time);
+
+int set_rtc_time(struct rtc_time *tm)
+{
+ unsigned long secs;
+
+ rtc_tm_to_time(tm, &secs);
+ return rtc_sh_set_time(secs);
+}
+EXPORT_SYMBOL(set_rtc_time);
+
+static int __init rtc_generic_init(void)
+{
+ struct platform_device *pdev;
+
+ if (rtc_sh_get_time == null_rtc_get_time)
+ return -ENODEV;
+
+ pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ return 0;
+}
+module_init(rtc_generic_init);
+
+/* last time the RTC clock got updated */
+static long last_rtc_update;
+
+/*
+ * handle_timer_tick() needs to keep up the real-time clock,
+ * as well as call the "do_timer()" routine every clocktick
+ */
+void handle_timer_tick(void)
+{
+ if (current->pid)
+ profile_tick(CPU_PROFILING);
+
+ /*
+ * Here we are in the timer irq handler. We just have irqs locally
+ * disabled but we don't know if the timer_bh is running on the other
+ * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
+ * the irq version of write_lock because as just said we have irq
+ * locally disabled. -arca
+ */
+ write_seqlock(&xtime_lock);
+ do_timer(1);
+
+ /*
+ * If we have an externally synchronized Linux clock, then update
+ * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+ * called as close as possible to 500 ms before the new second starts.
+ */
+ if (ntp_synced() &&
+ xtime.tv_sec > last_rtc_update + 660 &&
+ (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
+ (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
+ if (rtc_sh_set_time(xtime.tv_sec) == 0)
+ last_rtc_update = xtime.tv_sec;
+ else
+ /* do it again in 60s */
+ last_rtc_update = xtime.tv_sec - 600;
+ }
+ write_sequnlock(&xtime_lock);
+
+#ifndef CONFIG_SMP
+ update_process_times(user_mode(get_irq_regs()));
+#endif
+}
+
+#ifdef CONFIG_PM
+int timer_suspend(struct sys_device *dev, pm_message_t state)
+{
+ struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
+
+ sys_timer->ops->stop();
+
+ return 0;
+}
+
+int timer_resume(struct sys_device *dev)
+{
+ struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
+
+ sys_timer->ops->start();
+
+ return 0;
+}
+#else
+#define timer_suspend NULL
+#define timer_resume NULL
+#endif
+
+static struct sysdev_class timer_sysclass = {
+ .name = "timer",
+ .suspend = timer_suspend,
+ .resume = timer_resume,
+};
+
+static int __init timer_init_sysfs(void)
+{
+ int ret;
+
+ if (!sys_timer)
+ return 0;
+
+ ret = sysdev_class_register(&timer_sysclass);
+ if (ret != 0)
+ return ret;
+
+ sys_timer->dev.cls = &timer_sysclass;
+ return sysdev_register(&sys_timer->dev);
+}
+device_initcall(timer_init_sysfs);
+
+void (*board_time_init)(void);
+
+struct clocksource clocksource_sh = {
+ .name = "SuperH",
+};
+
+unsigned long long sched_clock(void)
+{
+ unsigned long long cycles;
+
+ /* jiffies based sched_clock if no clocksource is installed */
+ if (!clocksource_sh.rating)
+ return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
+
+ cycles = clocksource_sh.read(&clocksource_sh);
+ return cyc2ns(&clocksource_sh, cycles);
+}
+
+static void __init sh_late_time_init(void)
+{
+ /*
+ * Make sure all compiled-in early timers register themselves.
+ * Run probe() for one "earlytimer" device.
+ */
+ early_platform_driver_register_all("earlytimer");
+ if (early_platform_driver_probe("earlytimer", 1, 0))
+ return;
+
+ /*
+ * Find the timer to use as the system timer, it will be
+ * initialized for us.
+ */
+ sys_timer = get_sys_timer();
+ if (unlikely(!sys_timer))
+ panic("System timer missing.\n");
+
+ printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
+}
+
+void __init time_init(void)
+{
+ if (board_time_init)
+ board_time_init();
+
+ clk_init();
+
+ rtc_sh_get_time(&xtime);
+ set_normalized_timespec(&wall_to_monotonic,
+ -xtime.tv_sec, -xtime.tv_nsec);
+
+#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+ local_timer_setup(smp_processor_id());
+#endif
+
+ late_time_init = sh_late_time_init;
+}
+
+++ /dev/null
-/*
- * arch/sh/kernel/time_32.c
- *
- * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
- * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 2002 - 2009 Paul Mundt
- * Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org>
- *
- * Some code taken from i386 version.
- * Copyright (C) 1991, 1992, 1995 Linus Torvalds
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-#include <linux/timex.h>
-#include <linux/sched.h>
-#include <linux/clockchips.h>
-#include <linux/mc146818rtc.h> /* for rtc_lock */
-#include <linux/platform_device.h>
-#include <linux/smp.h>
-#include <linux/rtc.h>
-#include <asm/clock.h>
-#include <asm/rtc.h>
-#include <asm/timer.h>
-#include <asm/kgdb.h>
-
-struct sys_timer *sys_timer;
-
-/* Move this somewhere more sensible.. */
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-/* Dummy RTC ops */
-static void null_rtc_get_time(struct timespec *tv)
-{
- tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
- tv->tv_nsec = 0;
-}
-
-static int null_rtc_set_time(const time_t secs)
-{
- return 0;
-}
-
-void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
-int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
-
-unsigned int get_rtc_time(struct rtc_time *tm)
-{
- if (rtc_sh_get_time != null_rtc_get_time) {
- struct timespec tv;
-
- rtc_sh_get_time(&tv);
- rtc_time_to_tm(tv.tv_sec, tm);
- }
-
- return RTC_24H;
-}
-EXPORT_SYMBOL(get_rtc_time);
-
-int set_rtc_time(struct rtc_time *tm)
-{
- unsigned long secs;
-
- rtc_tm_to_time(tm, &secs);
- return rtc_sh_set_time(secs);
-}
-EXPORT_SYMBOL(set_rtc_time);
-
-static int __init rtc_generic_init(void)
-{
- struct platform_device *pdev;
-
- if (rtc_sh_get_time == null_rtc_get_time)
- return -ENODEV;
-
- pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- return 0;
-}
-module_init(rtc_generic_init);
-
-/* last time the RTC clock got updated */
-static long last_rtc_update;
-
-/*
- * handle_timer_tick() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-void handle_timer_tick(void)
-{
- if (current->pid)
- profile_tick(CPU_PROFILING);
-
- /*
- * Here we are in the timer irq handler. We just have irqs locally
- * disabled but we don't know if the timer_bh is running on the other
- * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
- * the irq version of write_lock because as just said we have irq
- * locally disabled. -arca
- */
- write_seqlock(&xtime_lock);
- do_timer(1);
-
- /*
- * If we have an externally synchronized Linux clock, then update
- * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (rtc_sh_set_time(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- /* do it again in 60s */
- last_rtc_update = xtime.tv_sec - 600;
- }
- write_sequnlock(&xtime_lock);
-
-#ifndef CONFIG_SMP
- update_process_times(user_mode(get_irq_regs()));
-#endif
-}
-
-#ifdef CONFIG_PM
-int timer_suspend(struct sys_device *dev, pm_message_t state)
-{
- struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
-
- sys_timer->ops->stop();
-
- return 0;
-}
-
-int timer_resume(struct sys_device *dev)
-{
- struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev);
-
- sys_timer->ops->start();
-
- return 0;
-}
-#else
-#define timer_suspend NULL
-#define timer_resume NULL
-#endif
-
-static struct sysdev_class timer_sysclass = {
- .name = "timer",
- .suspend = timer_suspend,
- .resume = timer_resume,
-};
-
-static int __init timer_init_sysfs(void)
-{
- int ret;
-
- if (!sys_timer)
- return 0;
-
- ret = sysdev_class_register(&timer_sysclass);
- if (ret != 0)
- return ret;
-
- sys_timer->dev.cls = &timer_sysclass;
- return sysdev_register(&sys_timer->dev);
-}
-device_initcall(timer_init_sysfs);
-
-void (*board_time_init)(void);
-
-struct clocksource clocksource_sh = {
- .name = "SuperH",
-};
-
-unsigned long long sched_clock(void)
-{
- unsigned long long cycles;
-
- /* jiffies based sched_clock if no clocksource is installed */
- if (!clocksource_sh.rating)
- return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
-
- cycles = clocksource_sh.read(&clocksource_sh);
- return cyc2ns(&clocksource_sh, cycles);
-}
-
-static void __init sh_late_time_init(void)
-{
- /*
- * Make sure all compiled-in early timers register themselves.
- * Run probe() for one "earlytimer" device.
- */
- early_platform_driver_register_all("earlytimer");
- if (early_platform_driver_probe("earlytimer", 1, 0))
- return;
-
- /*
- * Find the timer to use as the system timer, it will be
- * initialized for us.
- */
- sys_timer = get_sys_timer();
- if (unlikely(!sys_timer))
- panic("System timer missing.\n");
-
- printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
-}
-
-void __init time_init(void)
-{
- if (board_time_init)
- board_time_init();
-
- clk_init();
-
- rtc_sh_get_time(&xtime);
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
-
-#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
- local_timer_setup(smp_processor_id());
-#endif
-
- late_time_init = sh_late_time_init;
-}
-
projects / deliverable / linux.git / commitdiff
