Lines Matching defs:tc
16 u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc)
20 t = ns - tc->time_zero;
21 quot = t / tc->time_mult;
22 rem = t % tc->time_mult;
23 return (quot << tc->time_shift) +
24 (rem << tc->time_shift) / tc->time_mult;
27 u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc)
31 if (tc->cap_user_time_short)
32 cyc = tc->time_cycles +
33 ((cyc - tc->time_cycles) & tc->time_mask);
35 quot = cyc >> tc->time_shift;
36 rem = cyc & (((u64)1 << tc->time_shift) - 1);
37 return tc->time_zero + quot * tc->time_mult +
38 ((rem * tc->time_mult) >> tc->time_shift);
42 struct perf_tsc_conversion *tc)
50 tc->time_mult = pc->time_mult;
51 tc->time_shift = pc->time_shift;
52 tc->time_zero = pc->time_zero;
53 tc->time_cycles = pc->time_cycles;
54 tc->time_mask = pc->time_mask;
55 tc->cap_user_time_zero = pc->cap_user_time_zero;
56 tc->cap_user_time_short = pc->cap_user_time_short;
66 if (!tc->cap_user_time_zero)
85 struct perf_tsc_conversion tc;
90 err = perf_read_tsc_conversion(pc, &tc);
98 event.time_conv.time_mult = tc.time_mult;
99 event.time_conv.time_shift = tc.time_shift;
100 event.time_conv.time_zero = tc.time_zero;
101 event.time_conv.time_cycles = tc.time_cycles;
102 event.time_conv.time_mask = tc.time_mask;
103 event.time_conv.cap_user_time_zero = tc.cap_user_time_zero;
104 event.time_conv.cap_user_time_short = tc.cap_user_time_short;