LXR linux/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 milliseconds and back.
  37 */
  38#define cputime_to_msecs(__ct)          jiffies_to_msecs(__ct)
  39#define msecs_to_cputime(__msecs)       msecs_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