/* * linux/arch/cris/kernel/time.c * * Copyright (C) 1991, 1992, 1995 Linus Torvalds * Copyright (C) 1999, 2000, 2001 Axis Communications AB * * 1994-07-02 Alan Modra * fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime * 1995-03-26 Markus Kuhn * fixed 500 ms bug at call to set_rtc_mmss, fixed DS12887 * precision CMOS clock update * 1996-05-03 Ingo Molnar * fixed time warps in do_[slow|fast]_gettimeoffset() * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 * "A Kernel Model for Precision Timekeeping" by Dave Mills * * Linux/CRIS specific code: * * Authors: Bjorn Wesen * Johan Adolfsson * */ #include <linux/errno.h> #include <linux/module.h> #include <linux/param.h> #include <linux/jiffies.h> #include <linux/bcd.h> #include <linux/timex.h> #include <linux/init.h> #include <linux/profile.h> #include <linux/sched.h> /* just for sched_clock() - funny that */ #define D(x) #define TICK_SIZE tick extern unsigned long loops_per_jiffy; /* init/main.c */ unsigned long loops_per_usec; int set_rtc_mmss(unsigned long nowtime) { D(printk(KERN_DEBUG "set_rtc_mmss(%lu)\n", nowtime)); return 0; } /* grab the time from the RTC chip */ unsigned long get_cmos_time(void) { return 0; } int update_persistent_clock(struct timespec now) { return set_rtc_mmss(now.tv_sec); } void read_persistent_clock(struct timespec *ts) { ts->tv_sec = 0; ts->tv_nsec = 0; } extern void cris_profile_sample(struct pt_regs* regs); void cris_do_profile(struct pt_regs* regs) { #ifdef CONFIG_SYSTEM_PROFILER cris_profile_sample(regs); #endif #ifdef CONFIG_PROFILING profile_tick(CPU_PROFILING); #endif } unsigned long long sched_clock(void) { return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ) + get_ns_in_jiffie(); } static int __init init_udelay(void) { loops_per_usec = (loops_per_jiffy * HZ) / 1000000; return 0; } __initcall(init_udelay);