8 void timecounter_init(struct timecounter *tc,  in timecounter_init()  argument
12 	tc->cc = cc;  in timecounter_init()
13 	tc->cycle_last = cc->read(cc);  in timecounter_init()
14 	tc->nsec = start_tstamp;  in timecounter_init()
15 	tc->mask = (1ULL << cc->shift) - 1;  in timecounter_init()
16 	tc->frac = 0;  in timecounter_init()
31 static u64 timecounter_read_delta(struct timecounter *tc)  in timecounter_read_delta()  argument
37 	cycle_now = tc->cc->read(tc->cc);  in timecounter_read_delta()
40 	cycle_delta = (cycle_now - tc->cycle_last) & tc->cc->mask;  in timecounter_read_delta()
43 	ns_offset = cyclecounter_cyc2ns(tc->cc, cycle_delta,  in timecounter_read_delta()
44 					tc->mask, &tc->frac);  in timecounter_read_delta()
47 	tc->cycle_last = cycle_now;  in timecounter_read_delta()
52 u64 timecounter_read(struct timecounter *tc)  in timecounter_read()  argument
57 	nsec = timecounter_read_delta(tc);  in timecounter_read()
58 	nsec += tc->nsec;  in timecounter_read()
59 	tc->nsec = nsec;  in timecounter_read()
79 u64 timecounter_cyc2time(const struct timecounter *tc,  in timecounter_cyc2time()  argument
82 	u64 delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask;  in timecounter_cyc2time()
83 	u64 nsec = tc->nsec, frac = tc->frac;  in timecounter_cyc2time()
90 	if (delta > tc->cc->mask / 2) {  in timecounter_cyc2time()
91 		delta = (tc->cycle_last - cycle_tstamp) & tc->cc->mask;  in timecounter_cyc2time()
92 		nsec -= cc_cyc2ns_backwards(tc->cc, delta, tc->mask, frac);  in timecounter_cyc2time()
94 		nsec += cyclecounter_cyc2ns(tc->cc, delta, tc->mask, &frac);  in timecounter_cyc2time()