linux/include/asm-generic/cputime.h
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   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 __nocast cputime_t;
   8
   9#define cputime_one_jiffy               jiffies_to_cputime(1)
  10#define cputime_to_jiffies(__ct)        (__force unsigned long)(__ct)
  11#define cputime_to_scaled(__ct)         (__ct)
  12#define jiffies_to_cputime(__hz)        (__force cputime_t)(__hz)
  13
  14typedef u64 __nocast cputime64_t;
  15
  16#define cputime64_to_jiffies64(__ct)    (__force u64)(__ct)
  17#define jiffies64_to_cputime64(__jif)   (__force cputime64_t)(__jif)
  18
  19#define nsecs_to_cputime64(__ct)        \
  20        jiffies64_to_cputime64(nsecs_to_jiffies64(__ct))
  21
  22
  23/*
  24 * Convert cputime to microseconds and back.
  25 */
  26#define cputime_to_usecs(__ct)          \
  27        jiffies_to_usecs(cputime_to_jiffies(__ct))
  28#define usecs_to_cputime(__usec)        \
  29        jiffies_to_cputime(usecs_to_jiffies(__usec))
  30#define usecs_to_cputime64(__usec)      \
  31        jiffies64_to_cputime64(nsecs_to_jiffies64((__usec) * 1000))
  32
  33/*
  34 * Convert cputime to seconds and back.
  35 */
  36#define cputime_to_secs(jif)            (cputime_to_jiffies(jif) / HZ)
  37#define secs_to_cputime(sec)            jiffies_to_cputime((sec) * HZ)
  38
  39/*
  40 * Convert cputime to timespec and back.
  41 */
  42#define timespec_to_cputime(__val)      \
  43        jiffies_to_cputime(timespec_to_jiffies(__val))
  44#define cputime_to_timespec(__ct,__val) \
  45        jiffies_to_timespec(cputime_to_jiffies(__ct),__val)
  46
  47/*
  48 * Convert cputime to timeval and back.
  49 */
  50#define timeval_to_cputime(__val)       \
  51        jiffies_to_cputime(timeval_to_jiffies(__val))
  52#define cputime_to_timeval(__ct,__val)  \
  53        jiffies_to_timeval(cputime_to_jiffies(__ct),__val)
  54
  55/*
  56 * Convert cputime to clock and back.
  57 */
  58#define cputime_to_clock_t(__ct)        \
  59        jiffies_to_clock_t(cputime_to_jiffies(__ct))
  60#define clock_t_to_cputime(__x)         \
  61        jiffies_to_cputime(clock_t_to_jiffies(__x))
  62
  63/*
  64 * Convert cputime64 to clock.
  65 */
  66#define cputime64_to_clock_t(__ct)      \
  67        jiffies_64_to_clock_t(cputime64_to_jiffies64(__ct))
  68
  69#endif
  70
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