cregit-Linux how code gets into the kernel

Release 4.10 arch/s390/include/asm/cputime.h

/*
 *  Copyright IBM Corp. 2004
 *
 *  Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
 */

#ifndef _S390_CPUTIME_H

#define _S390_CPUTIME_H

#include <linux/types.h>
#include <asm/div64.h>


#define CPUTIME_PER_USEC 4096ULL

#define CPUTIME_PER_SEC (CPUTIME_PER_USEC * USEC_PER_SEC)

/* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */


typedef unsigned long long __nocast cputime_t;

typedef unsigned long long __nocast cputime64_t;


#define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new)


static inline unsigned long __div(unsigned long long n, unsigned long base) { return n / base; }

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martin schwidefskymartin schwidefsky22100.00%2100.00%
Total22100.00%2100.00%

#define cputime_one_jiffy jiffies_to_cputime(1) /* * Convert cputime to jiffies and back. */
static inline unsigned long cputime_to_jiffies(const cputime_t cputime) { return __div((__force unsigned long long) cputime, CPUTIME_PER_SEC / HZ); }

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martin schwidefskymartin schwidefsky2692.86%250.00%
frederic weisbeckerfrederic weisbecker13.57%125.00%
michael neulingmichael neuling13.57%125.00%
Total28100.00%4100.00%


static inline cputime_t jiffies_to_cputime(const unsigned int jif) { return (__force cputime_t)(jif * (CPUTIME_PER_SEC / HZ)); }

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martin schwidefskymartin schwidefsky2696.30%266.67%
frederic weisbeckerfrederic weisbecker13.70%133.33%
Total27100.00%3100.00%


static inline u64 cputime64_to_jiffies64(cputime64_t cputime) { unsigned long long jif = (__force unsigned long long) cputime; do_div(jif, CPUTIME_PER_SEC / HZ); return jif; }

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martin schwidefskymartin schwidefsky3497.14%266.67%
frederic weisbeckerfrederic weisbecker12.86%133.33%
Total35100.00%3100.00%


static inline cputime64_t jiffies64_to_cputime64(const u64 jif) { return (__force cputime64_t)(jif * (CPUTIME_PER_SEC / HZ)); }

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martin schwidefskymartin schwidefsky2596.15%266.67%
frederic weisbeckerfrederic weisbecker13.85%133.33%
Total26100.00%3100.00%

/* * Convert cputime to microseconds and back. */
static inline unsigned int cputime_to_usecs(const cputime_t cputime) { return (__force unsigned long long) cputime >> 12; }

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martin schwidefskymartin schwidefsky2295.65%266.67%
michael holzheumichael holzheu14.35%133.33%
Total23100.00%3100.00%


static inline cputime_t usecs_to_cputime(const unsigned int m) { return (__force cputime_t)(m * CPUTIME_PER_USEC); }

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martin schwidefskymartin schwidefsky2191.30%250.00%
michael holzheumichael holzheu14.35%125.00%
frederic weisbeckerfrederic weisbecker14.35%125.00%
Total23100.00%4100.00%

#define usecs_to_cputime64(m) usecs_to_cputime(m) /* * Convert cputime to milliseconds and back. */
static inline unsigned int cputime_to_secs(const cputime_t cputime) { return __div((__force unsigned long long) cputime, CPUTIME_PER_SEC / 2) >> 1; }

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martin schwidefskymartin schwidefsky2790.00%375.00%
frederic weisbeckerfrederic weisbecker310.00%125.00%
Total30100.00%4100.00%


static inline cputime_t secs_to_cputime(const unsigned int s) { return (__force cputime_t)(s * CPUTIME_PER_SEC); }

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martin schwidefskymartin schwidefsky2295.65%266.67%
frederic weisbeckerfrederic weisbecker14.35%133.33%
Total23100.00%3100.00%

/* * Convert cputime to timespec and back. */
static inline cputime_t timespec_to_cputime(const struct timespec *value) { unsigned long long ret = value->tv_sec * CPUTIME_PER_SEC; return (__force cputime_t)(ret + __div(value->tv_nsec * CPUTIME_PER_USEC, NSEC_PER_USEC)); }

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martin schwidefskymartin schwidefsky4193.18%480.00%
frederic weisbeckerfrederic weisbecker36.82%120.00%
Total44100.00%5100.00%


static inline void cputime_to_timespec(const cputime_t cputime, struct timespec *value) { unsigned long long __cputime = (__force unsigned long long) cputime; value->tv_nsec = (__cputime % CPUTIME_PER_SEC) * NSEC_PER_USEC / CPUTIME_PER_USEC; value->tv_sec = __cputime / CPUTIME_PER_SEC; }

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martin schwidefskymartin schwidefsky4792.16%375.00%
frederic weisbeckerfrederic weisbecker47.84%125.00%
Total51100.00%4100.00%

/* * Convert cputime to timeval and back. * Since cputime and timeval have the same resolution (microseconds) * this is easy. */
static inline cputime_t timeval_to_cputime(const struct timeval *value) { unsigned long long ret = value->tv_sec * CPUTIME_PER_SEC; return (__force cputime_t)(ret + value->tv_usec * CPUTIME_PER_USEC); }

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martin schwidefskymartin schwidefsky3794.87%375.00%
frederic weisbeckerfrederic weisbecker25.13%125.00%
Total39100.00%4100.00%


static inline void cputime_to_timeval(const cputime_t cputime, struct timeval *value) { unsigned long long __cputime = (__force unsigned long long) cputime; value->tv_usec = (__cputime % CPUTIME_PER_SEC) / CPUTIME_PER_USEC; value->tv_sec = __cputime / CPUTIME_PER_SEC; }

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martin schwidefskymartin schwidefsky4387.76%250.00%
christian borntraegerchristian borntraeger36.12%125.00%
frederic weisbeckerfrederic weisbecker36.12%125.00%
Total49100.00%4100.00%

/* * Convert cputime to clock and back. */
static inline clock_t cputime_to_clock_t(cputime_t cputime) { unsigned long long clock = (__force unsigned long long) cputime; do_div(clock, CPUTIME_PER_SEC / USER_HZ); return clock; }

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martin schwidefskymartin schwidefsky3497.14%266.67%
frederic weisbeckerfrederic weisbecker12.86%133.33%
Total35100.00%3100.00%


static inline cputime_t clock_t_to_cputime(unsigned long x) { return (__force cputime_t)(x * (CPUTIME_PER_SEC / USER_HZ)); }

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martin schwidefskymartin schwidefsky2596.15%266.67%
frederic weisbeckerfrederic weisbecker13.85%133.33%
Total26100.00%3100.00%

/* * Convert cputime64 to clock. */
static inline clock_t cputime64_to_clock_t(cputime64_t cputime) { unsigned long long clock = (__force unsigned long long) cputime; do_div(clock, CPUTIME_PER_SEC / USER_HZ); return clock; }

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martin schwidefskymartin schwidefsky3497.14%266.67%
frederic weisbeckerfrederic weisbecker12.86%133.33%
Total35100.00%3100.00%

cputime64_t arch_cpu_idle_time(int cpu); #define arch_idle_time(cpu) arch_cpu_idle_time(cpu) #endif /* _S390_CPUTIME_H */

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martin schwidefskymartin schwidefsky53689.63%952.94%
frederic weisbeckerfrederic weisbecker325.35%15.88%
rik van rielrik van riel111.84%15.88%
andreas schwabandreas schwab71.17%15.88%
stanislaw gruszkastanislaw gruszka40.67%15.88%
michael holzheumichael holzheu30.50%15.88%
christian borntraegerchristian borntraeger30.50%15.88%
michael neulingmichael neuling10.17%15.88%
heiko carstensheiko carstens10.17%15.88%
Total598100.00%17100.00%
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