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
   7 typedef 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
  14 typedef 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