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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) | |
33 | #define cputime_max ((~((cputime_t)0) >> 1) - 1) | |
34 | #define cputime_add(__a, __b) ((__a) + (__b)) | |
35 | #define cputime_sub(__a, __b) ((__a) - (__b)) | |
36 | #define cputime_div(__a, __n) ((__a) / (__n)) | |
37 | #define cputime_halve(__a) ((__a) >> 1) | |
38 | #define cputime_eq(__a, __b) ((__a) == (__b)) | |
39 | #define cputime_gt(__a, __b) ((__a) > (__b)) | |
40 | #define cputime_ge(__a, __b) ((__a) >= (__b)) | |
41 | #define cputime_lt(__a, __b) ((__a) < (__b)) | |
42 | #define cputime_le(__a, __b) ((__a) <= (__b)) | |
43 | ||
44 | #define cputime64_zero ((cputime64_t)0) | |
45 | #define cputime64_add(__a, __b) ((__a) + (__b)) | |
46 | #define cputime64_sub(__a, __b) ((__a) - (__b)) | |
47 | #define cputime_to_cputime64(__ct) (__ct) | |
48 | ||
49 | /* | |
50 | * Convert cputime <-> jiffies (HZ) | |
51 | */ | |
52 | #define cputime_to_jiffies(__ct) ((__ct) / (NSEC_PER_SEC / HZ)) | |
53 | #define jiffies_to_cputime(__jif) ((__jif) * (NSEC_PER_SEC / HZ)) | |
54 | #define cputime64_to_jiffies64(__ct) ((__ct) / (NSEC_PER_SEC / HZ)) | |
55 | #define jiffies64_to_cputime64(__jif) ((__jif) * (NSEC_PER_SEC / HZ)) | |
56 | ||
57 | /* | |
58 | * Convert cputime <-> milliseconds | |
59 | */ | |
60 | #define cputime_to_msecs(__ct) ((__ct) / NSEC_PER_MSEC) | |
61 | #define msecs_to_cputime(__msecs) ((__msecs) * NSEC_PER_MSEC) | |
62 | ||
63 | /* | |
64 | * Convert cputime <-> seconds | |
65 | */ | |
66 | #define cputime_to_secs(__ct) ((__ct) / NSEC_PER_SEC) | |
67 | #define secs_to_cputime(__secs) ((__secs) * NSEC_PER_SEC) | |
68 | ||
69 | /* | |
70 | * Convert cputime <-> timespec (nsec) | |
71 | */ | |
72 | static inline cputime_t timespec_to_cputime(const struct timespec *val) | |
73 | { | |
74 | cputime_t ret = val->tv_sec * NSEC_PER_SEC; | |
75 | return (ret + val->tv_nsec); | |
76 | } | |
77 | static inline void cputime_to_timespec(const cputime_t ct, struct timespec *val) | |
78 | { | |
79 | val->tv_sec = ct / NSEC_PER_SEC; | |
80 | val->tv_nsec = ct % NSEC_PER_SEC; | |
81 | } | |
82 | ||
83 | /* | |
84 | * Convert cputime <-> timeval (msec) | |
85 | */ | |
86 | static inline cputime_t timeval_to_cputime(struct timeval *val) | |
87 | { | |
88 | cputime_t ret = val->tv_sec * NSEC_PER_SEC; | |
89 | return (ret + val->tv_usec * NSEC_PER_USEC); | |
90 | } | |
91 | static inline void cputime_to_timeval(const cputime_t ct, struct timeval *val) | |
92 | { | |
93 | val->tv_sec = ct / NSEC_PER_SEC; | |
94 | val->tv_usec = (ct % NSEC_PER_SEC) / NSEC_PER_USEC; | |
95 | } | |
96 | ||
97 | /* | |
98 | * Convert cputime <-> clock (USER_HZ) | |
99 | */ | |
100 | #define cputime_to_clock_t(__ct) ((__ct) / (NSEC_PER_SEC / USER_HZ)) | |
101 | #define clock_t_to_cputime(__x) ((__x) * (NSEC_PER_SEC / USER_HZ)) | |
102 | ||
103 | /* | |
104 | * Convert cputime64 to clock. | |
105 | */ | |
106 | #define cputime64_to_clock_t(__ct) cputime_to_clock_t((cputime_t)__ct) | |
1da177e4 | 107 | |
b64f34cd | 108 | #endif /* CONFIG_VIRT_CPU_ACCOUNTING */ |
1da177e4 | 109 | #endif /* __IA64_CPUTIME_H */ |