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