/* * linux/arch/h8300/kernel/time.c * * Yoshinori Sato <ysato@users.sourceforge.jp> * * Copied/hacked from: * * linux/arch/m68k/kernel/time.c * * Copyright (C) 1991, 1992, 1995 Linus Torvalds * * This file contains the m68k-specific time handling details. * Most of the stuff is located in the machine specific files. * * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 * "A Kernel Model for Precision Timekeeping" by Dave Mills */ #include <linux/errno.h> #include <linux/module.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/param.h> #include <linux/string.h> #include <linux/mm.h> #include <linux/timex.h> #include <linux/profile.h> #include <asm/io.h> #include <asm/timer.h> #define TICK_SIZE (tick_nsec / 1000) void h8300_timer_tick(void) { if (current->pid) profile_tick(CPU_PROFILING); xtime_update(1); update_process_times(user_mode(get_irq_regs())); } void read_persistent_clock(struct timespec *ts) { unsigned int year, mon, day, hour, min, sec; /* FIX by dqg : Set to zero for platforms that don't have tod */ /* without this time is undefined and can overflow time_t, causing */ /* very strange errors */ year = 1980; mon = day = 1; hour = min = sec = 0; #ifdef CONFIG_H8300_GETTOD h8300_gettod (&year, &mon, &day, &hour, &min, &sec); #endif if ((year += 1900) < 1970) year += 100; ts->tv_sec = mktime(year, mon, day, hour, min, sec); ts->tv_nsec = 0; } void __init time_init(void) { h8300_timer_setup(); }