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root/include/asm-generic/cputime.h

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INCLUDED FROM


#ifndef _ASM_GENERIC_CPUTIME_H
#define _ASM_GENERIC_CPUTIME_H

#include <linux/time.h>
#include <linux/jiffies.h>

typedef unsigned long cputime_t;

#define cputime_zero                    (0UL)
#define cputime_max                     ((~0UL >> 1) - 1)
#define cputime_add(__a, __b)           ((__a) +  (__b))
#define cputime_sub(__a, __b)           ((__a) -  (__b))
#define cputime_div(__a, __n)           ((__a) /  (__n))
#define cputime_halve(__a)              ((__a) >> 1)
#define cputime_eq(__a, __b)            ((__a) == (__b))
#define cputime_gt(__a, __b)            ((__a) >  (__b))
#define cputime_ge(__a, __b)            ((__a) >= (__b))
#define cputime_lt(__a, __b)            ((__a) <  (__b))
#define cputime_le(__a, __b)            ((__a) <= (__b))
#define cputime_to_jiffies(__ct)        (__ct)
#define cputime_to_scaled(__ct)         (__ct)
#define jiffies_to_cputime(__hz)        (__hz)

typedef u64 cputime64_t;

#define cputime64_zero (0ULL)
#define cputime64_add(__a, __b)         ((__a) + (__b))
#define cputime64_sub(__a, __b)         ((__a) - (__b))
#define cputime64_to_jiffies64(__ct)    (__ct)
#define jiffies64_to_cputime64(__jif)   (__jif)
#define cputime_to_cputime64(__ct)      ((u64) __ct)


/*
 * Convert cputime to milliseconds and back.
 */
#define cputime_to_msecs(__ct)          jiffies_to_msecs(__ct)
#define msecs_to_cputime(__msecs)       msecs_to_jiffies(__msecs)

/*
 * Convert cputime to seconds and back.
 */
#define cputime_to_secs(jif)            ((jif) / HZ)
#define secs_to_cputime(sec)            ((sec) * HZ)

/*
 * Convert cputime to timespec and back.
 */
#define timespec_to_cputime(__val)      timespec_to_jiffies(__val)
#define cputime_to_timespec(__ct,__val) jiffies_to_timespec(__ct,__val)

/*
 * Convert cputime to timeval and back.
 */
#define timeval_to_cputime(__val)       timeval_to_jiffies(__val)
#define cputime_to_timeval(__ct,__val)  jiffies_to_timeval(__ct,__val)

/*
 * Convert cputime to clock and back.
 */
#define cputime_to_clock_t(__ct)        jiffies_to_clock_t(__ct)
#define clock_t_to_cputime(__x)         clock_t_to_jiffies(__x)

/*
 * Convert cputime64 to clock.
 */
#define cputime64_to_clock_t(__ct)      jiffies_64_to_clock_t(__ct)

#endif

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