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Diffstat (limited to 'include/asm-generic/cputime_nsecs.h')
-rw-r--r--include/asm-generic/cputime_nsecs.h28
1 files changed, 19 insertions, 9 deletions
diff --git a/include/asm-generic/cputime_nsecs.h b/include/asm-generic/cputime_nsecs.h
index a8ece9a33ae..2c9e62c2bfd 100644
--- a/include/asm-generic/cputime_nsecs.h
+++ b/include/asm-generic/cputime_nsecs.h
@@ -16,21 +16,27 @@
#ifndef _ASM_GENERIC_CPUTIME_NSECS_H
#define _ASM_GENERIC_CPUTIME_NSECS_H
+#include <linux/math64.h>
+
typedef u64 __nocast cputime_t;
typedef u64 __nocast cputime64_t;
#define cputime_one_jiffy jiffies_to_cputime(1)
+#define cputime_div(__ct, divisor) div_u64((__force u64)__ct, divisor)
+#define cputime_div_rem(__ct, divisor, remainder) \
+ div_u64_rem((__force u64)__ct, divisor, remainder);
+
/*
* Convert cputime <-> jiffies (HZ)
*/
#define cputime_to_jiffies(__ct) \
- ((__force u64)(__ct) / (NSEC_PER_SEC / HZ))
+ cputime_div(__ct, NSEC_PER_SEC / HZ)
#define cputime_to_scaled(__ct) (__ct)
#define jiffies_to_cputime(__jif) \
(__force cputime_t)((__jif) * (NSEC_PER_SEC / HZ))
#define cputime64_to_jiffies64(__ct) \
- ((__force u64)(__ct) / (NSEC_PER_SEC / HZ))
+ cputime_div(__ct, NSEC_PER_SEC / HZ)
#define jiffies64_to_cputime64(__jif) \
(__force cputime64_t)((__jif) * (NSEC_PER_SEC / HZ))
@@ -45,7 +51,7 @@ typedef u64 __nocast cputime64_t;
* Convert cputime <-> microseconds
*/
#define cputime_to_usecs(__ct) \
- ((__force u64)(__ct) / NSEC_PER_USEC)
+ cputime_div(__ct, NSEC_PER_USEC)
#define usecs_to_cputime(__usecs) \
(__force cputime_t)((__usecs) * NSEC_PER_USEC)
#define usecs_to_cputime64(__usecs) \
@@ -55,7 +61,7 @@ typedef u64 __nocast cputime64_t;
* Convert cputime <-> seconds
*/
#define cputime_to_secs(__ct) \
- ((__force u64)(__ct) / NSEC_PER_SEC)
+ cputime_div(__ct, NSEC_PER_SEC)
#define secs_to_cputime(__secs) \
(__force cputime_t)((__secs) * NSEC_PER_SEC)
@@ -69,8 +75,10 @@ static inline cputime_t timespec_to_cputime(const struct timespec *val)
}
static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val)
{
- val->tv_sec = (__force u64) ct / NSEC_PER_SEC;
- val->tv_nsec = (__force u64) ct % NSEC_PER_SEC;
+ u32 rem;
+
+ val->tv_sec = cputime_div_rem(ct, NSEC_PER_SEC, &rem);
+ val->tv_nsec = rem;
}
/*
@@ -83,15 +91,17 @@ static inline cputime_t timeval_to_cputime(const struct timeval *val)
}
static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val)
{
- val->tv_sec = (__force u64) ct / NSEC_PER_SEC;
- val->tv_usec = ((__force u64) ct % NSEC_PER_SEC) / NSEC_PER_USEC;
+ u32 rem;
+
+ val->tv_sec = cputime_div_rem(ct, NSEC_PER_SEC, &rem);
+ val->tv_usec = rem / NSEC_PER_USEC;
}
/*
* Convert cputime <-> clock (USER_HZ)
*/
#define cputime_to_clock_t(__ct) \
- ((__force u64)(__ct) / (NSEC_PER_SEC / USER_HZ))
+ cputime_div(__ct, (NSEC_PER_SEC / USER_HZ))
#define clock_t_to_cputime(__x) \
(__force cputime_t)((__x) * (NSEC_PER_SEC / USER_HZ))