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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 */ |