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/*
* Definitions for measuring cputime on ia64 machines.
*
* Based on <asm-powerpc/cputime.h>.
*
* Copyright (C) 2007 FUJITSU LIMITED
* Copyright (C) 2007 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* If we have CONFIG_VIRT_CPU_ACCOUNTING, we measure cpu time in nsec.
* Otherwise we measure cpu time in jiffies using the generic definitions.
*/
#ifndef __IA64_CPUTIME_H
#define __IA64_CPUTIME_H
#ifndef CONFIG_VIRT_CPU_ACCOUNTING
#include <asm-generic/cputime.h>
#else
#include <linux/time.h>
#include <linux/jiffies.h>
#include <asm/processor.h>
typedef u64 cputime_t;
typedef u64 cputime64_t;
#define cputime_zero ((cputime_t)0)
#define cputime_one_jiffy jiffies_to_cputime(1)
#define cputime_max ((~((cputime_t)0) >> 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 cputime64_zero ((cputime64_t)0)
#define cputime64_add(__a, __b) ((__a) + (__b))
#define cputime64_sub(__a, __b) ((__a) - (__b))
#define cputime_to_cputime64(__ct) (__ct)
/*
* Convert cputime <-> jiffies (HZ)
*/
#define cputime_to_jiffies(__ct) ((__ct) / (NSEC_PER_SEC / HZ))
#define jiffies_to_cputime(__jif) ((__jif) * (NSEC_PER_SEC / HZ))
#define cputime64_to_jiffies64(__ct) ((__ct) / (NSEC_PER_SEC / HZ))
#define jiffies64_to_cputime64(__jif) ((__jif) * (NSEC_PER_SEC / HZ))
/*
* Convert cputime <-> microseconds
*/
#define cputime_to_usecs(__ct) ((__ct) / NSEC_PER_USEC)
#define usecs_to_cputime(__usecs) ((__usecs) * NSEC_PER_USEC)
/*
* Convert cputime <-> seconds
*/
#define cputime_to_secs(__ct) ((__ct) / NSEC_PER_SEC)
#define secs_to_cputime(__secs) ((__secs) * NSEC_PER_SEC)
/*
* Convert cputime <-> timespec (nsec)
*/
static inline cputime_t timespec_to_cputime(const struct timespec *val)
{
cputime_t ret = val->tv_sec * NSEC_PER_SEC;
return (ret + val->tv_nsec);
}
static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
{
val->tv_sec = ct / NSEC_PER_SEC;
val->tv_nsec = ct % NSEC_PER_SEC;
}
/*
* Convert cputime <-> timeval (msec)
*/
static inline cputime_t timeval_to_cputime(struct timeval *val)
{
cputime_t ret = val->tv_sec * NSEC_PER_SEC;
return (ret + val->tv_usec * NSEC_PER_USEC);
}
static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
{
val->tv_sec = ct / NSEC_PER_SEC;
val->tv_usec = (ct % NSEC_PER_SEC) / NSEC_PER_USEC;
}
/*
* Convert cputime <-> clock (USER_HZ)
*/
#define cputime_to_clock_t(__ct) ((__ct) / (NSEC_PER_SEC / USER_HZ))
#define clock_t_to_cputime(__x) ((__x) * (NSEC_PER_SEC / USER_HZ))
/*
* Convert cputime64 to clock.
*/
#define cputime64_to_clock_t(__ct) cputime_to_clock_t((cputime_t)__ct)
#endif /* CONFIG_VIRT_CPU_ACCOUNTING */
#endif /* __IA64_CPUTIME_H */
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