projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b64f34cd HS |
1 | /* |
| 2 | * include/asm-ia64/cputime.h: | |
| 3 | * Definitions for measuring cputime on ia64 machines. | |
| 4 | * | |
| 5 | * Based on <asm-powerpc/cputime.h>. | |
| 6 | * | |
| 7 | * Copyright (C) 2007 FUJITSU LIMITED | |
| 8 | * Copyright (C) 2007 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or | |
| 11 | * modify it under the terms of the GNU General Public License | |
| 12 | * as published by the Free Software Foundation; either version | |
| 13 | * 2 of the License, or (at your option) any later version. | |
| 14 | * | |
| 15 | * If we have CONFIG_VIRT_CPU_ACCOUNTING, we measure cpu time in nsec. | |
| 16 | * Otherwise we measure cpu time in jiffies using the generic definitions. | |
| 17 | */ | |
| 18 | ||
| 1da177e4 LT |
19 | #ifndef __IA64_CPUTIME_H |
| 20 | #define __IA64_CPUTIME_H | |
| 21 | ||
| b64f34cd | 22 | #ifndef CONFIG_VIRT_CPU_ACCOUNTING |
| 1da177e4 | 23 | #include <asm-generic/cputime.h> |
| b64f34cd HS |
24 | #else |
| 25 | ||
| 26 | #include <linux/time.h> | |
| 27 | #include <linux/jiffies.h> | |
| 28 | #include <asm/processor.h> | |
| 29 | ||
| 30 | typedef u64 cputime_t; | |
| 31 | typedef u64 cputime64_t; | |
| 32 | ||
| 33 | #define cputime_zero ((cputime_t)0) | |
| 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 */ |