blob: b063c9217b5c64568167b4295a21857b1704dae9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* 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;
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
extern unsigned long do_slow_gettimeoffset(void);
static unsigned long (*do_gettimeoffset)(void) = do_slow_gettimeoffset;
u32 arch_gettimeoffset(void)
{
return do_gettimeoffset();
}
#endif
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);
|
