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16#ifndef __POWERPC_CPUTIME_H
17#define __POWERPC_CPUTIME_H
18
19#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
20#include <asm-generic/cputime.h>
21#ifdef __KERNEL__
22static inline void setup_cputime_one_jiffy(void) { }
23#endif
24#else
25
26#include <linux/types.h>
27#include <linux/time.h>
28#include <asm/div64.h>
29#include <asm/time.h>
30#include <asm/param.h>
31
32typedef u64 __nocast cputime_t;
33typedef u64 __nocast cputime64_t;
34
35#define cmpxchg_cputime(ptr, old, new) cmpxchg(ptr, old, new)
36
37#ifdef __KERNEL__
38
39
40
41
42extern cputime_t cputime_one_jiffy;
43
44
45
46
47extern u64 __cputime_jiffies_factor;
48DECLARE_PER_CPU(unsigned long, cputime_last_delta);
49DECLARE_PER_CPU(unsigned long, cputime_scaled_last_delta);
50
51static inline unsigned long cputime_to_jiffies(const cputime_t ct)
52{
53 return mulhdu((__force u64) ct, __cputime_jiffies_factor);
54}
55
56
57
58static inline cputime_t cputime_to_scaled(const cputime_t ct)
59{
60 if (cpu_has_feature(CPU_FTR_SPURR) &&
61 __get_cpu_var(cputime_last_delta))
62 return (__force u64) ct *
63 __get_cpu_var(cputime_scaled_last_delta) /
64 __get_cpu_var(cputime_last_delta);
65 return ct;
66}
67
68static inline cputime_t jiffies_to_cputime(const unsigned long jif)
69{
70 u64 ct;
71 unsigned long sec;
72
73
74 ct = jif % HZ;
75 sec = jif / HZ;
76 if (ct) {
77 ct *= tb_ticks_per_sec;
78 do_div(ct, HZ);
79 }
80 if (sec)
81 ct += (cputime_t) sec * tb_ticks_per_sec;
82 return (__force cputime_t) ct;
83}
84
85static inline void setup_cputime_one_jiffy(void)
86{
87 cputime_one_jiffy = jiffies_to_cputime(1);
88}
89
90static inline cputime64_t jiffies64_to_cputime64(const u64 jif)
91{
92 u64 ct;
93 u64 sec;
94
95
96 ct = jif % HZ;
97 sec = jif / HZ;
98 if (ct) {
99 ct *= tb_ticks_per_sec;
100 do_div(ct, HZ);
101 }
102 if (sec)
103 ct += (u64) sec * tb_ticks_per_sec;
104 return (__force cputime64_t) ct;
105}
106
107static inline u64 cputime64_to_jiffies64(const cputime_t ct)
108{
109 return mulhdu((__force u64) ct, __cputime_jiffies_factor);
110}
111
112
113
114
115extern u64 __cputime_usec_factor;
116
117static inline unsigned long cputime_to_usecs(const cputime_t ct)
118{
119 return mulhdu((__force u64) ct, __cputime_usec_factor);
120}
121
122static inline cputime_t usecs_to_cputime(const unsigned long us)
123{
124 u64 ct;
125 unsigned long sec;
126
127
128 ct = us % 1000000;
129 sec = us / 1000000;
130 if (ct) {
131 ct *= tb_ticks_per_sec;
132 do_div(ct, 1000000);
133 }
134 if (sec)
135 ct += (cputime_t) sec * tb_ticks_per_sec;
136 return (__force cputime_t) ct;
137}
138
139#define usecs_to_cputime64(us) usecs_to_cputime(us)
140
141
142
143
144extern u64 __cputime_sec_factor;
145
146static inline unsigned long cputime_to_secs(const cputime_t ct)
147{
148 return mulhdu((__force u64) ct, __cputime_sec_factor);
149}
150
151static inline cputime_t secs_to_cputime(const unsigned long sec)
152{
153 return (__force cputime_t)((u64) sec * tb_ticks_per_sec);
154}
155
156
157
158
159static inline void cputime_to_timespec(const cputime_t ct, struct timespec *p)
160{
161 u64 x = (__force u64) ct;
162 unsigned int frac;
163
164 frac = do_div(x, tb_ticks_per_sec);
165 p->tv_sec = x;
166 x = (u64) frac * 1000000000;
167 do_div(x, tb_ticks_per_sec);
168 p->tv_nsec = x;
169}
170
171static inline cputime_t timespec_to_cputime(const struct timespec *p)
172{
173 u64 ct;
174
175 ct = (u64) p->tv_nsec * tb_ticks_per_sec;
176 do_div(ct, 1000000000);
177 return (__force cputime_t)(ct + (u64) p->tv_sec * tb_ticks_per_sec);
178}
179
180
181
182
183static inline void cputime_to_timeval(const cputime_t ct, struct timeval *p)
184{
185 u64 x = (__force u64) ct;
186 unsigned int frac;
187
188 frac = do_div(x, tb_ticks_per_sec);
189 p->tv_sec = x;
190 x = (u64) frac * 1000000;
191 do_div(x, tb_ticks_per_sec);
192 p->tv_usec = x;
193}
194
195static inline cputime_t timeval_to_cputime(const struct timeval *p)
196{
197 u64 ct;
198
199 ct = (u64) p->tv_usec * tb_ticks_per_sec;
200 do_div(ct, 1000000);
201 return (__force cputime_t)(ct + (u64) p->tv_sec * tb_ticks_per_sec);
202}
203
204
205
206
207extern u64 __cputime_clockt_factor;
208
209static inline unsigned long cputime_to_clock_t(const cputime_t ct)
210{
211 return mulhdu((__force u64) ct, __cputime_clockt_factor);
212}
213
214static inline cputime_t clock_t_to_cputime(const unsigned long clk)
215{
216 u64 ct;
217 unsigned long sec;
218
219
220 ct = clk % USER_HZ;
221 sec = clk / USER_HZ;
222 if (ct) {
223 ct *= tb_ticks_per_sec;
224 do_div(ct, USER_HZ);
225 }
226 if (sec)
227 ct += (u64) sec * tb_ticks_per_sec;
228 return (__force cputime_t) ct;
229}
230
231#define cputime64_to_clock_t(ct) cputime_to_clock_t((cputime_t)(ct))
232
233static inline void arch_vtime_task_switch(struct task_struct *tsk) { }
234
235#endif
236#endif
237#endif
238