/* * Definitions for measuring cputime in nsecs resolution. * * Based on * * Copyright (C) 2007 FUJITSU LIMITED * Copyright (C) 2007 Hidetoshi Seto * * 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. * */ #ifndef _ASM_GENERIC_CPUTIME_NSECS_H #define _ASM_GENERIC_CPUTIME_NSECS_H #include typedef u64 __nocast cputime_t; typedef u64 __nocast cputime64_t; #define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new) #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) \ cputime_div(__ct, NSEC_PER_SEC / HZ) #define jiffies_to_cputime(__jif) \ (__force cputime_t)((__jif) * (NSEC_PER_SEC / HZ)) #define cputime64_to_jiffies64(__ct) \ cputime_div(__ct, NSEC_PER_SEC / HZ) #define jiffies64_to_cputime64(__jif) \ (__force cputime64_t)((__jif) * (NSEC_PER_SEC / HZ)) /* * Convert cputime <-> nanoseconds */ #define cputime_to_nsecs(__ct) \ (__force u64)(__ct) #define nsecs_to_cputime(__nsecs) \ (__force cputime_t)(__nsecs) #define nsecs_to_cputime64(__nsecs) \ (__force cputime64_t)(__nsecs) /* * Convert cputime <-> microseconds */ #define cputime_to_usecs(__ct) \ cputime_div(__ct, NSEC_PER_USEC) #define usecs_to_cputime(__usecs) \ (__force cputime_t)((__usecs) * NSEC_PER_USEC) #define usecs_to_cputime64(__usecs) \ (__force cputime64_t)((__usecs) * NSEC_PER_USEC) /* * Convert cputime <-> seconds */ #define cputime_to_secs(__ct) \ cputime_div(__ct, NSEC_PER_SEC) #define secs_to_cputime(__secs) \ (__force cputime_t)((__secs) * NSEC_PER_SEC) /* * Convert cputime <-> timespec (nsec) */ static inline cputime_t timespec_to_cputime(const struct timespec *val) { u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_nsec; return (__force cputime_t) ret; } static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val) { u32 rem; val->tv_sec = cputime_div_rem(ct, NSEC_PER_SEC, &rem); val->tv_nsec = rem; } /* * Convert cputime <-> timeval (msec) */ static inline cputime_t timeval_to_cputime(const struct timeval *val) { u64 ret = (u64)val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC; return (__force cputime_t) ret; } static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val) { 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) \ cputime_div(__ct, (NSEC_PER_SEC / USER_HZ)) #define clock_t_to_cputime(__x) \ (__force cputime_t)((__x) * (NSEC_PER_SEC / USER_HZ)) /* * Convert cputime64 to clock. */ #define cputime64_to_clock_t(__ct) \ cputime_to_clock_t((__force cputime_t)__ct) #endif d=a572a1b999489efb591287632279c6c9eca3e4ed&showmsg=1'>Expand)AuthorFilesLines 2017-02-04Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ker...Linus Torvalds1-0/+17 2017-02-04Merge tag 'char-misc-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/g...Linus Torvalds1-2/+30 2017-02-03base/memory, hotplug: fix a kernel oops in show_valid_zones()Toshi Kani1-1/+2 2017-02-03Merge tag 'drm-fixes-for-v4.10-rc7' of git://people.freedesktop.org/~airlied/...Linus Torvalds2-1/+16 2017-02-03Merge branch 'modversions' (modversions fixes for powerpc from Ard)Linus Torvalds3-17/+25 2017-02-03log2: make order_base_2() behave correctly on const input value zeroArd Biesheuvel1-1/+12 2017-02-03module: unify absolute krctab definitions for 32-bit and 64-bitArd Biesheuvel1-7/+0 2017-02-03modversions: treat symbol CRCs as 32 bit quantitiesArd Biesheuvel3-12/+27 2017-02-02Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ke...Linus Torvalds1-3/+0 2017-02-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds4-19/+26 2017-02-01Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vir...Linus Torvalds1-0/+1 2017-02-01net: fix ndo_features_check/ndo_fix_features comment orderingDimitris Michailidis1-14/+15 2017-02-01perf/x86/intel/uncore: Make package handling more robustThomas Gleixner1-2/+0