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16#ifndef _ASM_GENERIC_CPUTIME_NSECS_H
17#define _ASM_GENERIC_CPUTIME_NSECS_H
18
19#include <linux/math64.h>
20
21typedef u64 __nocast cputime_t;
22typedef u64 __nocast cputime64_t;
23
24#define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new)
25
26#define cputime_one_jiffy jiffies_to_cputime(1)
27
28#define cputime_div(__ct, divisor) div_u64((__force u64)__ct, divisor)
29#define cputime_div_rem(__ct, divisor, remainder) \
30 div_u64_rem((__force u64)__ct, divisor, remainder);
31
32
33
34
35#define cputime_to_jiffies(__ct) \
36 cputime_div(__ct, NSEC_PER_SEC / HZ)
37#define cputime_to_scaled(__ct) (__ct)
38#define jiffies_to_cputime(__jif) \
39 (__force cputime_t)((__jif) * (NSEC_PER_SEC / HZ))
40#define cputime64_to_jiffies64(__ct) \
41 cputime_div(__ct, NSEC_PER_SEC / HZ)
42#define jiffies64_to_cputime64(__jif) \
43 (__force cputime64_t)((__jif) * (NSEC_PER_SEC / HZ))
44
45
46
47
48
49#define cputime_to_nsecs(__ct) \
50 (__force u64)(__ct)
51#define nsecs_to_cputime(__nsecs) \
52 (__force cputime_t)(__nsecs)
53
54
55
56
57
58#define cputime_to_usecs(__ct) \
59 cputime_div(__ct, NSEC_PER_USEC)
60#define usecs_to_cputime(__usecs) \
61 (__force cputime_t)((__usecs) * NSEC_PER_USEC)
62#define usecs_to_cputime64(__usecs) \
63 (__force cputime64_t)((__usecs) * NSEC_PER_USEC)
64
65
66
67
68#define cputime_to_secs(__ct) \
69 cputime_div(__ct, NSEC_PER_SEC)
70#define secs_to_cputime(__secs) \
71 (__force cputime_t)((__secs) * NSEC_PER_SEC)
72
73
74
75
76static inline cputime_t timespec_to_cputime(const struct timespec *val)
77{
78 u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_nsec;
79 return (__force cputime_t) ret;
80}
81static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
82{
83 u32 rem;
84
85 val->tv_sec = cputime_div_rem(ct, NSEC_PER_SEC, &rem);
86 val->tv_nsec = rem;
87}
88
89
90
91
92static inline cputime_t timeval_to_cputime(const struct timeval *val)
93{
94 u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC;
95 return (__force cputime_t) ret;
96}
97static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
98{
99 u32 rem;
100
101 val->tv_sec = cputime_div_rem(ct, NSEC_PER_SEC, &rem);
102 val->tv_usec = rem / NSEC_PER_USEC;
103}
104
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106
107
108#define cputime_to_clock_t(__ct) \
109 cputime_div(__ct, (NSEC_PER_SEC / USER_HZ))
110#define clock_t_to_cputime(__x) \
111 (__force cputime_t)((__x) * (NSEC_PER_SEC / USER_HZ))
112
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115
116#define cputime64_to_clock_t(__ct) \
117 cputime_to_clock_t((__force cputime_t)__ct)
118
119#endif
120