Root/include/asm-generic/cputime.h

1#ifndef _ASM_GENERIC_CPUTIME_H
2#define _ASM_GENERIC_CPUTIME_H
3
4#include <linux/time.h>
5#include <linux/jiffies.h>
6
7typedef unsigned long cputime_t;
8
9#define cputime_zero (0UL)
10#define cputime_one_jiffy jiffies_to_cputime(1)
11#define cputime_max ((~0UL >> 1) - 1)
12#define cputime_add(__a, __b) ((__a) + (__b))
13#define cputime_sub(__a, __b) ((__a) - (__b))
14#define cputime_div(__a, __n) ((__a) / (__n))
15#define cputime_halve(__a) ((__a) >> 1)
16#define cputime_eq(__a, __b) ((__a) == (__b))
17#define cputime_gt(__a, __b) ((__a) > (__b))
18#define cputime_ge(__a, __b) ((__a) >= (__b))
19#define cputime_lt(__a, __b) ((__a) < (__b))
20#define cputime_le(__a, __b) ((__a) <= (__b))
21#define cputime_to_jiffies(__ct) (__ct)
22#define cputime_to_scaled(__ct) (__ct)
23#define jiffies_to_cputime(__hz) (__hz)
24
25typedef u64 cputime64_t;
26
27#define cputime64_zero (0ULL)
28#define cputime64_add(__a, __b) ((__a) + (__b))
29#define cputime64_sub(__a, __b) ((__a) - (__b))
30#define cputime64_to_jiffies64(__ct) (__ct)
31#define jiffies64_to_cputime64(__jif) (__jif)
32#define cputime_to_cputime64(__ct) ((u64) __ct)
33
34
35/*
36 * Convert cputime to microseconds and back.
37 */
38#define cputime_to_usecs(__ct) jiffies_to_usecs(__ct);
39#define usecs_to_cputime(__msecs) usecs_to_jiffies(__msecs);
40
41/*
42 * Convert cputime to seconds and back.
43 */
44#define cputime_to_secs(jif) ((jif) / HZ)
45#define secs_to_cputime(sec) ((sec) * HZ)
46
47/*
48 * Convert cputime to timespec and back.
49 */
50#define timespec_to_cputime(__val) timespec_to_jiffies(__val)
51#define cputime_to_timespec(__ct,__val) jiffies_to_timespec(__ct,__val)
52
53/*
54 * Convert cputime to timeval and back.
55 */
56#define timeval_to_cputime(__val) timeval_to_jiffies(__val)
57#define cputime_to_timeval(__ct,__val) jiffies_to_timeval(__ct,__val)
58
59/*
60 * Convert cputime to clock and back.
61 */
62#define cputime_to_clock_t(__ct) jiffies_to_clock_t(__ct)
63#define clock_t_to_cputime(__x) clock_t_to_jiffies(__x)
64
65/*
66 * Convert cputime64 to clock.
67 */
68#define cputime64_to_clock_t(__ct) jiffies_64_to_clock_t(__ct)
69
70#endif
71

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