#include <linux/timer.h>
#include <linux/irq.h>
+#include <linux/mc146818rtc.h>
+
#include <asm/leds.h>
#include <asm/thread_info.h>
#include <asm/mach/time.h>
*/
struct sys_timer *system_timer;
+#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE)
/* this needs a better home */
DEFINE_SPINLOCK(rtc_lock);
-#ifdef CONFIG_SA1100_RTC_MODULE
+#ifdef CONFIG_RTC_DRV_CMOS_MODULE
EXPORT_SYMBOL(rtc_lock);
#endif
+#endif /* pc-style 'CMOS' RTC support */
/* change this if you have some constant time drift */
#define USECS_PER_JIFFY (1000000/HZ)
#endif
/*
- * Scheduler clock - returns current time in nanosec units.
- * This is the default implementation. Sub-architecture
- * implementations can override this.
+ * An implementation of printk_clock() independent from
+ * sched_clock(). This avoids non-bootable kernels when
+ * printk_clock is enabled.
*/
-unsigned long long __attribute__((weak)) sched_clock(void)
+unsigned long long printk_clock(void)
{
- return (unsigned long long)jiffies * (1000000000 / HZ);
+ return (unsigned long long)(jiffies - INITIAL_JIFFIES) *
+ (1000000000 / HZ);
}
static unsigned long next_rtc_update;
#ifdef CONFIG_LEDS_TIMER
static inline void do_leds(void)
{
- static unsigned int count = 50;
+ static unsigned int count = HZ/2;
if (--count == 0) {
- count = 50;
+ count = HZ/2;
leds_event(led_timer);
}
}
*/
void timer_tick(void)
{
- struct pt_regs *regs = get_irq_regs();
profile_tick(CPU_PROFILING);
do_leds();
do_set_rtc();
do_timer(1);
#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
+ update_process_times(user_mode(get_irq_regs()));
#endif
}