[net-next-2.6.git] / arch / ia64 / include / asm / cputime.h

/*
 * 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 <-> milliseconds
 */
#define cputime_to_msecs(__ct)		((__ct) / NSEC_PER_MSEC)
#define msecs_to_cputime(__msecs)	((__msecs) * NSEC_PER_MSEC)

/*
 * 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 */
Commit	Line	Data
b64f34cd	1	/*
7f30491c	2	* Definitions for measuring cputime on ia64 machines.
b64f34cd HS	3	*
	4	* Based on <asm-powerpc/cputime.h>.
	5	*
	6	* Copyright (C) 2007 FUJITSU LIMITED
	7	* Copyright (C) 2007 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License
	11	* as published by the Free Software Foundation; either version
	12	* 2 of the License, or (at your option) any later version.
	13	*
	14	* If we have CONFIG_VIRT_CPU_ACCOUNTING, we measure cpu time in nsec.
	15	* Otherwise we measure cpu time in jiffies using the generic definitions.
	16	*/
	17
1da177e4 LT	18	#ifndef __IA64_CPUTIME_H
	19	#define __IA64_CPUTIME_H
	20
b64f34cd	21	#ifndef CONFIG_VIRT_CPU_ACCOUNTING
1da177e4	22	#include <asm-generic/cputime.h>
b64f34cd HS	23	#else
	24
	25	#include <linux/time.h>
	26	#include <linux/jiffies.h>
	27	#include <asm/processor.h>
	28
	29	typedef u64 cputime_t;
	30	typedef u64 cputime64_t;
	31
	32	#define cputime_zero ((cputime_t)0)
a42548a1	33	#define cputime_one_jiffy jiffies_to_cputime(1)
b64f34cd HS	34	#define cputime_max ((~((cputime_t)0) >> 1) - 1)
	35	#define cputime_add(__a, __b) ((__a) + (__b))
	36	#define cputime_sub(__a, __b) ((__a) - (__b))
	37	#define cputime_div(__a, __n) ((__a) / (__n))
	38	#define cputime_halve(__a) ((__a) >> 1)
	39	#define cputime_eq(__a, __b) ((__a) == (__b))
	40	#define cputime_gt(__a, __b) ((__a) > (__b))
	41	#define cputime_ge(__a, __b) ((__a) >= (__b))
	42	#define cputime_lt(__a, __b) ((__a) < (__b))
	43	#define cputime_le(__a, __b) ((__a) <= (__b))
	44
	45	#define cputime64_zero ((cputime64_t)0)
	46	#define cputime64_add(__a, __b) ((__a) + (__b))
	47	#define cputime64_sub(__a, __b) ((__a) - (__b))
	48	#define cputime_to_cputime64(__ct) (__ct)
	49
	50	/*
	51	* Convert cputime <-> jiffies (HZ)
	52	*/
	53	#define cputime_to_jiffies(__ct) ((__ct) / (NSEC_PER_SEC / HZ))
	54	#define jiffies_to_cputime(__jif) ((__jif) * (NSEC_PER_SEC / HZ))
	55	#define cputime64_to_jiffies64(__ct) ((__ct) / (NSEC_PER_SEC / HZ))
	56	#define jiffies64_to_cputime64(__jif) ((__jif) * (NSEC_PER_SEC / HZ))
	57
	58	/*
	59	* Convert cputime <-> milliseconds
	60	*/
	61	#define cputime_to_msecs(__ct) ((__ct) / NSEC_PER_MSEC)
	62	#define msecs_to_cputime(__msecs) ((__msecs) * NSEC_PER_MSEC)
	63
	64	/*
	65	* Convert cputime <-> seconds
	66	*/
	67	#define cputime_to_secs(__ct) ((__ct) / NSEC_PER_SEC)
	68	#define secs_to_cputime(__secs) ((__secs) * NSEC_PER_SEC)
	69
	70	/*
	71	* Convert cputime <-> timespec (nsec)
	72	*/
	73	static inline cputime_t timespec_to_cputime(const struct timespec *val)
	74	{
	75	cputime_t ret = val->tv_sec * NSEC_PER_SEC;
	76	return (ret + val->tv_nsec);
	77	}
	78	static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
	79	{
	80	val->tv_sec = ct / NSEC_PER_SEC;
	81	val->tv_nsec = ct % NSEC_PER_SEC;
	82	}
	83
	84	/*
	85	* Convert cputime <-> timeval (msec)
	86	*/
	87	static inline cputime_t timeval_to_cputime(struct timeval *val)
	88	{
	89	cputime_t ret = val->tv_sec * NSEC_PER_SEC;
	90	return (ret + val->tv_usec * NSEC_PER_USEC);
	91	}
	92	static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
	93	{
	94	val->tv_sec = ct / NSEC_PER_SEC;
	95	val->tv_usec = (ct % NSEC_PER_SEC) / NSEC_PER_USEC;
	96	}
	97
98	/*
99	* Convert cputime <-> clock (USER_HZ)
100	*/
101	#define cputime_to_clock_t(__ct) ((__ct) / (NSEC_PER_SEC / USER_HZ))
102	#define clock_t_to_cputime(__x) ((__x) * (NSEC_PER_SEC / USER_HZ))
103
104	/*
105	* Convert cputime64 to clock.
106	*/
107	#define cputime64_to_clock_t(__ct) cputime_to_clock_t((cputime_t)__ct)
1da177e4	108
b64f34cd	109	#endif /* CONFIG_VIRT_CPU_ACCOUNTING */
1da177e4	110	#endif /* __IA64_CPUTIME_H */