time: Rename timekeeper::tkr to timekeeper::tkr_mono
In preparation of adding another tkr field, rename this one to tkr_mono. Also rename tk_read_base::base_mono to tk_read_base::base, since the structure is not specific to CLOCK_MONOTONIC and the mono name got added to the tk_read_base instance. Lots of trivial churn. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150319093400.344679419@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra
Ingo Molnar
Родитель
32fea568ae
Коммит
876e78818d
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@ -200,7 +200,7 @@ up_fail:
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void update_vsyscall(struct timekeeper *tk)
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{
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struct timespec xtime_coarse;
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u32 use_syscall = strcmp(tk->tkr.clock->name, "arch_sys_counter");
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u32 use_syscall = strcmp(tk->tkr_mono.clock->name, "arch_sys_counter");
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++vdso_data->tb_seq_count;
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smp_wmb();
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@ -213,11 +213,11 @@ void update_vsyscall(struct timekeeper *tk)
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vdso_data->wtm_clock_nsec = tk->wall_to_monotonic.tv_nsec;
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if (!use_syscall) {
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vdso_data->cs_cycle_last = tk->tkr.cycle_last;
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vdso_data->cs_cycle_last = tk->tkr_mono.cycle_last;
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vdso_data->xtime_clock_sec = tk->xtime_sec;
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vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec;
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vdso_data->cs_mult = tk->tkr.mult;
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vdso_data->cs_shift = tk->tkr.shift;
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vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
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vdso_data->cs_mult = tk->tkr_mono.mult;
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vdso_data->cs_shift = tk->tkr_mono.shift;
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}
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smp_wmb();
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@ -215,20 +215,20 @@ void update_vsyscall(struct timekeeper *tk)
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{
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u64 nsecps;
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if (tk->tkr.clock != &clocksource_tod)
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if (tk->tkr_mono.clock != &clocksource_tod)
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return;
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/* Make userspace gettimeofday spin until we're done. */
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++vdso_data->tb_update_count;
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smp_wmb();
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vdso_data->xtime_tod_stamp = tk->tkr.cycle_last;
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vdso_data->xtime_tod_stamp = tk->tkr_mono.cycle_last;
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vdso_data->xtime_clock_sec = tk->xtime_sec;
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vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec;
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vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
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vdso_data->wtom_clock_sec =
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tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
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vdso_data->wtom_clock_nsec = tk->tkr.xtime_nsec +
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+ ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr.shift);
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nsecps = (u64) NSEC_PER_SEC << tk->tkr.shift;
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vdso_data->wtom_clock_nsec = tk->tkr_mono.xtime_nsec +
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+ ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr_mono.shift);
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nsecps = (u64) NSEC_PER_SEC << tk->tkr_mono.shift;
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while (vdso_data->wtom_clock_nsec >= nsecps) {
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vdso_data->wtom_clock_nsec -= nsecps;
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vdso_data->wtom_clock_sec++;
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@ -236,7 +236,7 @@ void update_vsyscall(struct timekeeper *tk)
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vdso_data->xtime_coarse_sec = tk->xtime_sec;
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vdso_data->xtime_coarse_nsec =
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(long)(tk->tkr.xtime_nsec >> tk->tkr.shift);
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(long)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
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vdso_data->wtom_coarse_sec =
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vdso_data->xtime_coarse_sec + tk->wall_to_monotonic.tv_sec;
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vdso_data->wtom_coarse_nsec =
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@ -246,8 +246,8 @@ void update_vsyscall(struct timekeeper *tk)
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vdso_data->wtom_coarse_sec++;
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}
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vdso_data->tk_mult = tk->tkr.mult;
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vdso_data->tk_shift = tk->tkr.shift;
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vdso_data->tk_mult = tk->tkr_mono.mult;
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vdso_data->tk_shift = tk->tkr_mono.shift;
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smp_wmb();
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++vdso_data->tb_update_count;
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}
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@ -257,34 +257,34 @@ void update_vsyscall_tz(void)
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void update_vsyscall(struct timekeeper *tk)
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{
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if (tk->tkr.clock != &cycle_counter_cs)
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if (tk->tkr_mono.clock != &cycle_counter_cs)
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return;
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write_seqcount_begin(&vdso_data->tb_seq);
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vdso_data->cycle_last = tk->tkr.cycle_last;
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vdso_data->mask = tk->tkr.mask;
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vdso_data->mult = tk->tkr.mult;
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vdso_data->shift = tk->tkr.shift;
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vdso_data->cycle_last = tk->tkr_mono.cycle_last;
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vdso_data->mask = tk->tkr_mono.mask;
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vdso_data->mult = tk->tkr_mono.mult;
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vdso_data->shift = tk->tkr_mono.shift;
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vdso_data->wall_time_sec = tk->xtime_sec;
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vdso_data->wall_time_snsec = tk->tkr.xtime_nsec;
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vdso_data->wall_time_snsec = tk->tkr_mono.xtime_nsec;
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vdso_data->monotonic_time_sec = tk->xtime_sec
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+ tk->wall_to_monotonic.tv_sec;
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vdso_data->monotonic_time_snsec = tk->tkr.xtime_nsec
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vdso_data->monotonic_time_snsec = tk->tkr_mono.xtime_nsec
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+ ((u64)tk->wall_to_monotonic.tv_nsec
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<< tk->tkr.shift);
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<< tk->tkr_mono.shift);
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while (vdso_data->monotonic_time_snsec >=
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(((u64)NSEC_PER_SEC) << tk->tkr.shift)) {
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(((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
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vdso_data->monotonic_time_snsec -=
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((u64)NSEC_PER_SEC) << tk->tkr.shift;
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((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
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vdso_data->monotonic_time_sec++;
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}
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vdso_data->wall_time_coarse_sec = tk->xtime_sec;
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vdso_data->wall_time_coarse_nsec = (long)(tk->tkr.xtime_nsec >>
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tk->tkr.shift);
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vdso_data->wall_time_coarse_nsec = (long)(tk->tkr_mono.xtime_nsec >>
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tk->tkr_mono.shift);
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vdso_data->monotonic_time_coarse_sec =
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vdso_data->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec;
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@ -31,30 +31,30 @@ void update_vsyscall(struct timekeeper *tk)
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gtod_write_begin(vdata);
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/* copy vsyscall data */
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vdata->vclock_mode = tk->tkr.clock->archdata.vclock_mode;
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vdata->cycle_last = tk->tkr.cycle_last;
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vdata->mask = tk->tkr.mask;
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vdata->mult = tk->tkr.mult;
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vdata->shift = tk->tkr.shift;
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vdata->vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode;
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vdata->cycle_last = tk->tkr_mono.cycle_last;
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vdata->mask = tk->tkr_mono.mask;
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vdata->mult = tk->tkr_mono.mult;
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vdata->shift = tk->tkr_mono.shift;
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vdata->wall_time_sec = tk->xtime_sec;
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vdata->wall_time_snsec = tk->tkr.xtime_nsec;
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vdata->wall_time_snsec = tk->tkr_mono.xtime_nsec;
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vdata->monotonic_time_sec = tk->xtime_sec
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+ tk->wall_to_monotonic.tv_sec;
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vdata->monotonic_time_snsec = tk->tkr.xtime_nsec
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vdata->monotonic_time_snsec = tk->tkr_mono.xtime_nsec
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+ ((u64)tk->wall_to_monotonic.tv_nsec
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<< tk->tkr.shift);
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<< tk->tkr_mono.shift);
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while (vdata->monotonic_time_snsec >=
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(((u64)NSEC_PER_SEC) << tk->tkr.shift)) {
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(((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
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vdata->monotonic_time_snsec -=
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((u64)NSEC_PER_SEC) << tk->tkr.shift;
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((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
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vdata->monotonic_time_sec++;
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}
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vdata->wall_time_coarse_sec = tk->xtime_sec;
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vdata->wall_time_coarse_nsec = (long)(tk->tkr.xtime_nsec >>
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tk->tkr.shift);
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vdata->wall_time_coarse_nsec = (long)(tk->tkr_mono.xtime_nsec >>
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tk->tkr_mono.shift);
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vdata->monotonic_time_coarse_sec =
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vdata->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec;
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@ -1070,19 +1070,19 @@ static void update_pvclock_gtod(struct timekeeper *tk)
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struct pvclock_gtod_data *vdata = &pvclock_gtod_data;
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u64 boot_ns;
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boot_ns = ktime_to_ns(ktime_add(tk->tkr.base_mono, tk->offs_boot));
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boot_ns = ktime_to_ns(ktime_add(tk->tkr_mono.base, tk->offs_boot));
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write_seqcount_begin(&vdata->seq);
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/* copy pvclock gtod data */
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vdata->clock.vclock_mode = tk->tkr.clock->archdata.vclock_mode;
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vdata->clock.cycle_last = tk->tkr.cycle_last;
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vdata->clock.mask = tk->tkr.mask;
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vdata->clock.mult = tk->tkr.mult;
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vdata->clock.shift = tk->tkr.shift;
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vdata->clock.vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode;
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vdata->clock.cycle_last = tk->tkr_mono.cycle_last;
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vdata->clock.mask = tk->tkr_mono.mask;
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vdata->clock.mult = tk->tkr_mono.mult;
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vdata->clock.shift = tk->tkr_mono.shift;
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vdata->boot_ns = boot_ns;
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vdata->nsec_base = tk->tkr.xtime_nsec;
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vdata->nsec_base = tk->tkr_mono.xtime_nsec;
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write_seqcount_end(&vdata->seq);
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}
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@ -16,16 +16,16 @@
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* @read: Read function of @clock
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* @mask: Bitmask for two's complement subtraction of non 64bit clocks
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* @cycle_last: @clock cycle value at last update
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* @mult: NTP adjusted multiplier for scaled math conversion
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* @mult: (NTP adjusted) multiplier for scaled math conversion
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* @shift: Shift value for scaled math conversion
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* @xtime_nsec: Shifted (fractional) nano seconds offset for readout
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* @base_mono: ktime_t (nanoseconds) base time for readout
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* @base: ktime_t (nanoseconds) base time for readout
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*
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* This struct has size 56 byte on 64 bit. Together with a seqcount it
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* occupies a single 64byte cache line.
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*
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* The struct is separate from struct timekeeper as it is also used
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* for a fast NMI safe accessor to clock monotonic.
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* for a fast NMI safe accessors.
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*/
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struct tk_read_base {
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struct clocksource *clock;
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@ -35,12 +35,12 @@ struct tk_read_base {
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u32 mult;
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u32 shift;
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u64 xtime_nsec;
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ktime_t base_mono;
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ktime_t base;
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};
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/**
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* struct timekeeper - Structure holding internal timekeeping values.
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* @tkr: The readout base structure
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* @tkr_mono: The readout base structure for CLOCK_MONOTONIC
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* @xtime_sec: Current CLOCK_REALTIME time in seconds
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* @ktime_sec: Current CLOCK_MONOTONIC time in seconds
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* @wall_to_monotonic: CLOCK_REALTIME to CLOCK_MONOTONIC offset
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@ -76,7 +76,7 @@ struct tk_read_base {
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* used instead.
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*/
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struct timekeeper {
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struct tk_read_base tkr;
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struct tk_read_base tkr_mono;
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u64 xtime_sec;
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unsigned long ktime_sec;
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struct timespec64 wall_to_monotonic;
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@ -68,8 +68,8 @@ bool __read_mostly persistent_clock_exist = false;
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static inline void tk_normalize_xtime(struct timekeeper *tk)
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{
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while (tk->tkr.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr.shift)) {
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tk->tkr.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr.shift;
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while (tk->tkr_mono.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr_mono.shift)) {
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tk->tkr_mono.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr_mono.shift;
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tk->xtime_sec++;
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}
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}
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@ -79,20 +79,20 @@ static inline struct timespec64 tk_xtime(struct timekeeper *tk)
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struct timespec64 ts;
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ts.tv_sec = tk->xtime_sec;
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ts.tv_nsec = (long)(tk->tkr.xtime_nsec >> tk->tkr.shift);
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ts.tv_nsec = (long)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
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return ts;
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}
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static void tk_set_xtime(struct timekeeper *tk, const struct timespec64 *ts)
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{
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tk->xtime_sec = ts->tv_sec;
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tk->tkr.xtime_nsec = (u64)ts->tv_nsec << tk->tkr.shift;
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tk->tkr_mono.xtime_nsec = (u64)ts->tv_nsec << tk->tkr_mono.shift;
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}
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static void tk_xtime_add(struct timekeeper *tk, const struct timespec64 *ts)
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{
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tk->xtime_sec += ts->tv_sec;
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tk->tkr.xtime_nsec += (u64)ts->tv_nsec << tk->tkr.shift;
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tk->tkr_mono.xtime_nsec += (u64)ts->tv_nsec << tk->tkr_mono.shift;
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tk_normalize_xtime(tk);
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}
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@ -136,8 +136,8 @@ static long timekeeping_last_warning;
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static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
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{
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cycle_t max_cycles = tk->tkr.clock->max_cycles;
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const char *name = tk->tkr.clock->name;
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cycle_t max_cycles = tk->tkr_mono.clock->max_cycles;
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const char *name = tk->tkr_mono.clock->name;
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if (offset > max_cycles) {
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printk_deferred("WARNING: timekeeping: Cycle offset (%lld) is larger than allowed by the '%s' clock's max_cycles value (%lld): time overflow danger\n",
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@ -246,11 +246,11 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
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u64 tmp, ntpinterval;
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struct clocksource *old_clock;
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old_clock = tk->tkr.clock;
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tk->tkr.clock = clock;
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tk->tkr.read = clock->read;
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tk->tkr.mask = clock->mask;
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tk->tkr.cycle_last = tk->tkr.read(clock);
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old_clock = tk->tkr_mono.clock;
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tk->tkr_mono.clock = clock;
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tk->tkr_mono.read = clock->read;
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tk->tkr_mono.mask = clock->mask;
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tk->tkr_mono.cycle_last = tk->tkr_mono.read(clock);
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/* Do the ns -> cycle conversion first, using original mult */
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tmp = NTP_INTERVAL_LENGTH;
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@ -274,11 +274,11 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
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if (old_clock) {
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int shift_change = clock->shift - old_clock->shift;
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if (shift_change < 0)
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tk->tkr.xtime_nsec >>= -shift_change;
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tk->tkr_mono.xtime_nsec >>= -shift_change;
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else
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tk->tkr.xtime_nsec <<= shift_change;
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tk->tkr_mono.xtime_nsec <<= shift_change;
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}
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tk->tkr.shift = clock->shift;
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tk->tkr_mono.shift = clock->shift;
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tk->ntp_error = 0;
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tk->ntp_error_shift = NTP_SCALE_SHIFT - clock->shift;
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@ -289,7 +289,7 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
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* active clocksource. These value will be adjusted via NTP
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* to counteract clock drifting.
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*/
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tk->tkr.mult = clock->mult;
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tk->tkr_mono.mult = clock->mult;
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tk->ntp_err_mult = 0;
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}
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@ -318,11 +318,11 @@ static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
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static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
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{
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struct clocksource *clock = tk->tkr.clock;
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struct clocksource *clock = tk->tkr_mono.clock;
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cycle_t delta;
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s64 nsec;
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delta = timekeeping_get_delta(&tk->tkr);
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delta = timekeeping_get_delta(&tk->tkr_mono);
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/* convert delta to nanoseconds. */
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nsec = clocksource_cyc2ns(delta, clock->mult, clock->shift);
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@ -428,7 +428,7 @@ u64 notrace ktime_get_mono_fast_ns(void)
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do {
|
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seq = raw_read_seqcount(&tk_fast_mono.seq);
|
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tkr = tk_fast_mono.base + (seq & 0x01);
|
||||
now = ktime_to_ns(tkr->base_mono) + timekeeping_get_ns(tkr);
|
||||
now = ktime_to_ns(tkr->base) + timekeeping_get_ns(tkr);
|
||||
|
||||
} while (read_seqcount_retry(&tk_fast_mono.seq, seq));
|
||||
return now;
|
||||
|
|
@ -456,7 +456,7 @@ static cycle_t dummy_clock_read(struct clocksource *cs)
|
|||
static void halt_fast_timekeeper(struct timekeeper *tk)
|
||||
{
|
||||
static struct tk_read_base tkr_dummy;
|
||||
struct tk_read_base *tkr = &tk->tkr;
|
||||
struct tk_read_base *tkr = &tk->tkr_mono;
|
||||
|
||||
memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
|
||||
cycles_at_suspend = tkr->read(tkr->clock);
|
||||
|
|
@ -472,8 +472,8 @@ static inline void update_vsyscall(struct timekeeper *tk)
|
|||
|
||||
xt = timespec64_to_timespec(tk_xtime(tk));
|
||||
wm = timespec64_to_timespec(tk->wall_to_monotonic);
|
||||
update_vsyscall_old(&xt, &wm, tk->tkr.clock, tk->tkr.mult,
|
||||
tk->tkr.cycle_last);
|
||||
update_vsyscall_old(&xt, &wm, tk->tkr_mono.clock, tk->tkr_mono.mult,
|
||||
tk->tkr_mono.cycle_last);
|
||||
}
|
||||
|
||||
static inline void old_vsyscall_fixup(struct timekeeper *tk)
|
||||
|
|
@ -490,11 +490,11 @@ static inline void old_vsyscall_fixup(struct timekeeper *tk)
|
|||
* (shifted nanoseconds), and CONFIG_GENERIC_TIME_VSYSCALL_OLD
|
||||
* users are removed, this can be killed.
|
||||
*/
|
||||
remainder = tk->tkr.xtime_nsec & ((1ULL << tk->tkr.shift) - 1);
|
||||
tk->tkr.xtime_nsec -= remainder;
|
||||
tk->tkr.xtime_nsec += 1ULL << tk->tkr.shift;
|
||||
remainder = tk->tkr_mono.xtime_nsec & ((1ULL << tk->tkr_mono.shift) - 1);
|
||||
tk->tkr_mono.xtime_nsec -= remainder;
|
||||
tk->tkr_mono.xtime_nsec += 1ULL << tk->tkr_mono.shift;
|
||||
tk->ntp_error += remainder << tk->ntp_error_shift;
|
||||
tk->ntp_error -= (1ULL << tk->tkr.shift) << tk->ntp_error_shift;
|
||||
tk->ntp_error -= (1ULL << tk->tkr_mono.shift) << tk->ntp_error_shift;
|
||||
}
|
||||
#else
|
||||
#define old_vsyscall_fixup(tk)
|
||||
|
|
@ -559,7 +559,7 @@ static inline void tk_update_ktime_data(struct timekeeper *tk)
|
|||
*/
|
||||
seconds = (u64)(tk->xtime_sec + tk->wall_to_monotonic.tv_sec);
|
||||
nsec = (u32) tk->wall_to_monotonic.tv_nsec;
|
||||
tk->tkr.base_mono = ns_to_ktime(seconds * NSEC_PER_SEC + nsec);
|
||||
tk->tkr_mono.base = ns_to_ktime(seconds * NSEC_PER_SEC + nsec);
|
||||
|
||||
/* Update the monotonic raw base */
|
||||
tk->base_raw = timespec64_to_ktime(tk->raw_time);
|
||||
|
|
@ -569,7 +569,7 @@ static inline void tk_update_ktime_data(struct timekeeper *tk)
|
|||
* wall_to_monotonic can be greater/equal one second. Take
|
||||
* this into account before updating tk->ktime_sec.
|
||||
*/
|
||||
nsec += (u32)(tk->tkr.xtime_nsec >> tk->tkr.shift);
|
||||
nsec += (u32)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
|
||||
if (nsec >= NSEC_PER_SEC)
|
||||
seconds++;
|
||||
tk->ktime_sec = seconds;
|
||||
|
|
@ -592,7 +592,7 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
|
|||
memcpy(&shadow_timekeeper, &tk_core.timekeeper,
|
||||
sizeof(tk_core.timekeeper));
|
||||
|
||||
update_fast_timekeeper(&tk->tkr);
|
||||
update_fast_timekeeper(&tk->tkr_mono);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -604,18 +604,18 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
|
|||
*/
|
||||
static void timekeeping_forward_now(struct timekeeper *tk)
|
||||
{
|
||||
struct clocksource *clock = tk->tkr.clock;
|
||||
struct clocksource *clock = tk->tkr_mono.clock;
|
||||
cycle_t cycle_now, delta;
|
||||
s64 nsec;
|
||||
|
||||
cycle_now = tk->tkr.read(clock);
|
||||
delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask);
|
||||
tk->tkr.cycle_last = cycle_now;
|
||||
cycle_now = tk->tkr_mono.read(clock);
|
||||
delta = clocksource_delta(cycle_now, tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
|
||||
tk->tkr_mono.cycle_last = cycle_now;
|
||||
|
||||
tk->tkr.xtime_nsec += delta * tk->tkr.mult;
|
||||
tk->tkr_mono.xtime_nsec += delta * tk->tkr_mono.mult;
|
||||
|
||||
/* If arch requires, add in get_arch_timeoffset() */
|
||||
tk->tkr.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr.shift;
|
||||
tk->tkr_mono.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr_mono.shift;
|
||||
|
||||
tk_normalize_xtime(tk);
|
||||
|
||||
|
|
@ -640,7 +640,7 @@ int __getnstimeofday64(struct timespec64 *ts)
|
|||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
|
||||
ts->tv_sec = tk->xtime_sec;
|
||||
nsecs = timekeeping_get_ns(&tk->tkr);
|
||||
nsecs = timekeeping_get_ns(&tk->tkr_mono);
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -680,8 +680,8 @@ ktime_t ktime_get(void)
|
|||
|
||||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
base = tk->tkr.base_mono;
|
||||
nsecs = timekeeping_get_ns(&tk->tkr);
|
||||
base = tk->tkr_mono.base;
|
||||
nsecs = timekeeping_get_ns(&tk->tkr_mono);
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -706,8 +706,8 @@ ktime_t ktime_get_with_offset(enum tk_offsets offs)
|
|||
|
||||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
base = ktime_add(tk->tkr.base_mono, *offset);
|
||||
nsecs = timekeeping_get_ns(&tk->tkr);
|
||||
base = ktime_add(tk->tkr_mono.base, *offset);
|
||||
nsecs = timekeeping_get_ns(&tk->tkr_mono);
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -777,7 +777,7 @@ void ktime_get_ts64(struct timespec64 *ts)
|
|||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
ts->tv_sec = tk->xtime_sec;
|
||||
nsec = timekeeping_get_ns(&tk->tkr);
|
||||
nsec = timekeeping_get_ns(&tk->tkr_mono);
|
||||
tomono = tk->wall_to_monotonic;
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
|
@ -863,7 +863,7 @@ void getnstime_raw_and_real(struct timespec *ts_raw, struct timespec *ts_real)
|
|||
ts_real->tv_nsec = 0;
|
||||
|
||||
nsecs_raw = timekeeping_get_ns_raw(tk);
|
||||
nsecs_real = timekeeping_get_ns(&tk->tkr);
|
||||
nsecs_real = timekeeping_get_ns(&tk->tkr_mono);
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -1046,7 +1046,7 @@ static int change_clocksource(void *data)
|
|||
*/
|
||||
if (try_module_get(new->owner)) {
|
||||
if (!new->enable || new->enable(new) == 0) {
|
||||
old = tk->tkr.clock;
|
||||
old = tk->tkr_mono.clock;
|
||||
tk_setup_internals(tk, new);
|
||||
if (old->disable)
|
||||
old->disable(old);
|
||||
|
|
@ -1074,11 +1074,11 @@ int timekeeping_notify(struct clocksource *clock)
|
|||
{
|
||||
struct timekeeper *tk = &tk_core.timekeeper;
|
||||
|
||||
if (tk->tkr.clock == clock)
|
||||
if (tk->tkr_mono.clock == clock)
|
||||
return 0;
|
||||
stop_machine(change_clocksource, clock, NULL);
|
||||
tick_clock_notify();
|
||||
return tk->tkr.clock == clock ? 0 : -1;
|
||||
return tk->tkr_mono.clock == clock ? 0 : -1;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1119,7 +1119,7 @@ int timekeeping_valid_for_hres(void)
|
|||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
|
||||
ret = tk->tkr.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES;
|
||||
ret = tk->tkr_mono.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES;
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -1138,7 +1138,7 @@ u64 timekeeping_max_deferment(void)
|
|||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
|
||||
ret = tk->tkr.clock->max_idle_ns;
|
||||
ret = tk->tkr_mono.clock->max_idle_ns;
|
||||
|
||||
} while (read_seqcount_retry(&tk_core.seq, seq));
|
||||
|
||||
|
|
@ -1303,7 +1303,7 @@ void timekeeping_inject_sleeptime64(struct timespec64 *delta)
|
|||
void timekeeping_resume(void)
|
||||
{
|
||||
struct timekeeper *tk = &tk_core.timekeeper;
|
||||
struct clocksource *clock = tk->tkr.clock;
|
||||
struct clocksource *clock = tk->tkr_mono.clock;
|
||||
unsigned long flags;
|
||||
struct timespec64 ts_new, ts_delta;
|
||||
struct timespec tmp;
|
||||
|
|
@ -1331,16 +1331,16 @@ void timekeeping_resume(void)
|
|||
* The less preferred source will only be tried if there is no better
|
||||
* usable source. The rtc part is handled separately in rtc core code.
|
||||
*/
|
||||
cycle_now = tk->tkr.read(clock);
|
||||
cycle_now = tk->tkr_mono.read(clock);
|
||||
if ((clock->flags & CLOCK_SOURCE_SUSPEND_NONSTOP) &&
|
||||
cycle_now > tk->tkr.cycle_last) {
|
||||
cycle_now > tk->tkr_mono.cycle_last) {
|
||||
u64 num, max = ULLONG_MAX;
|
||||
u32 mult = clock->mult;
|
||||
u32 shift = clock->shift;
|
||||
s64 nsec = 0;
|
||||
|
||||
cycle_delta = clocksource_delta(cycle_now, tk->tkr.cycle_last,
|
||||
tk->tkr.mask);
|
||||
cycle_delta = clocksource_delta(cycle_now, tk->tkr_mono.cycle_last,
|
||||
tk->tkr_mono.mask);
|
||||
|
||||
/*
|
||||
* "cycle_delta * mutl" may cause 64 bits overflow, if the
|
||||
|
|
@ -1366,7 +1366,7 @@ void timekeeping_resume(void)
|
|||
__timekeeping_inject_sleeptime(tk, &ts_delta);
|
||||
|
||||
/* Re-base the last cycle value */
|
||||
tk->tkr.cycle_last = cycle_now;
|
||||
tk->tkr_mono.cycle_last = cycle_now;
|
||||
tk->ntp_error = 0;
|
||||
timekeeping_suspended = 0;
|
||||
timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
|
||||
|
|
@ -1519,15 +1519,15 @@ static __always_inline void timekeeping_apply_adjustment(struct timekeeper *tk,
|
|||
*
|
||||
* XXX - TODO: Doc ntp_error calculation.
|
||||
*/
|
||||
if ((mult_adj > 0) && (tk->tkr.mult + mult_adj < mult_adj)) {
|
||||
if ((mult_adj > 0) && (tk->tkr_mono.mult + mult_adj < mult_adj)) {
|
||||
/* NTP adjustment caused clocksource mult overflow */
|
||||
WARN_ON_ONCE(1);
|
||||
return;
|
||||
}
|
||||
|
||||
tk->tkr.mult += mult_adj;
|
||||
tk->tkr_mono.mult += mult_adj;
|
||||
tk->xtime_interval += interval;
|
||||
tk->tkr.xtime_nsec -= offset;
|
||||
tk->tkr_mono.xtime_nsec -= offset;
|
||||
tk->ntp_error -= (interval - offset) << tk->ntp_error_shift;
|
||||
}
|
||||
|
||||
|
|
@ -1589,13 +1589,13 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
|
|||
tk->ntp_err_mult = 0;
|
||||
}
|
||||
|
||||
if (unlikely(tk->tkr.clock->maxadj &&
|
||||
(abs(tk->tkr.mult - tk->tkr.clock->mult)
|
||||
> tk->tkr.clock->maxadj))) {
|
||||
if (unlikely(tk->tkr_mono.clock->maxadj &&
|
||||
(abs(tk->tkr_mono.mult - tk->tkr_mono.clock->mult)
|
||||
> tk->tkr_mono.clock->maxadj))) {
|
||||
printk_once(KERN_WARNING
|
||||
"Adjusting %s more than 11%% (%ld vs %ld)\n",
|
||||
tk->tkr.clock->name, (long)tk->tkr.mult,
|
||||
(long)tk->tkr.clock->mult + tk->tkr.clock->maxadj);
|
||||
tk->tkr_mono.clock->name, (long)tk->tkr_mono.mult,
|
||||
(long)tk->tkr_mono.clock->mult + tk->tkr_mono.clock->maxadj);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1612,9 +1612,9 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
|
|||
* We'll correct this error next time through this function, when
|
||||
* xtime_nsec is not as small.
|
||||
*/
|
||||
if (unlikely((s64)tk->tkr.xtime_nsec < 0)) {
|
||||
s64 neg = -(s64)tk->tkr.xtime_nsec;
|
||||
tk->tkr.xtime_nsec = 0;
|
||||
if (unlikely((s64)tk->tkr_mono.xtime_nsec < 0)) {
|
||||
s64 neg = -(s64)tk->tkr_mono.xtime_nsec;
|
||||
tk->tkr_mono.xtime_nsec = 0;
|
||||
tk->ntp_error += neg << tk->ntp_error_shift;
|
||||
}
|
||||
}
|
||||
|
|
@ -1629,13 +1629,13 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
|
|||
*/
|
||||
static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
|
||||
{
|
||||
u64 nsecps = (u64)NSEC_PER_SEC << tk->tkr.shift;
|
||||
u64 nsecps = (u64)NSEC_PER_SEC << tk->tkr_mono.shift;
|
||||
unsigned int clock_set = 0;
|
||||
|
||||
while (tk->tkr.xtime_nsec >= nsecps) {
|
||||
while (tk->tkr_mono.xtime_nsec >= nsecps) {
|
||||
int leap;
|
||||
|
||||
tk->tkr.xtime_nsec -= nsecps;
|
||||
tk->tkr_mono.xtime_nsec -= nsecps;
|
||||
tk->xtime_sec++;
|
||||
|
||||
/* Figure out if its a leap sec and apply if needed */
|
||||
|
|
@ -1680,9 +1680,9 @@ static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
|
|||
|
||||
/* Accumulate one shifted interval */
|
||||
offset -= interval;
|
||||
tk->tkr.cycle_last += interval;
|
||||
tk->tkr_mono.cycle_last += interval;
|
||||
|
||||
tk->tkr.xtime_nsec += tk->xtime_interval << shift;
|
||||
tk->tkr_mono.xtime_nsec += tk->xtime_interval << shift;
|
||||
*clock_set |= accumulate_nsecs_to_secs(tk);
|
||||
|
||||
/* Accumulate raw time */
|
||||
|
|
@ -1725,8 +1725,8 @@ void update_wall_time(void)
|
|||
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
|
||||
offset = real_tk->cycle_interval;
|
||||
#else
|
||||
offset = clocksource_delta(tk->tkr.read(tk->tkr.clock),
|
||||
tk->tkr.cycle_last, tk->tkr.mask);
|
||||
offset = clocksource_delta(tk->tkr_mono.read(tk->tkr_mono.clock),
|
||||
tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
|
||||
#endif
|
||||
|
||||
/* Check if there's really nothing to do */
|
||||
|
|
@ -1890,8 +1890,8 @@ ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real, ktime_t *offs_boot,
|
|||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
|
||||
base = tk->tkr.base_mono;
|
||||
nsecs = tk->tkr.xtime_nsec >> tk->tkr.shift;
|
||||
base = tk->tkr_mono.base;
|
||||
nsecs = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
|
||||
|
||||
*offs_real = tk->offs_real;
|
||||
*offs_boot = tk->offs_boot;
|
||||
|
|
@ -1922,8 +1922,8 @@ ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, ktime_t *offs_boot,
|
|||
do {
|
||||
seq = read_seqcount_begin(&tk_core.seq);
|
||||
|
||||
base = tk->tkr.base_mono;
|
||||
nsecs = timekeeping_get_ns(&tk->tkr);
|
||||
base = tk->tkr_mono.base;
|
||||
nsecs = timekeeping_get_ns(&tk->tkr_mono);
|
||||
|
||||
*offs_real = tk->offs_real;
|
||||
*offs_boot = tk->offs_boot;
|
||||
|
|
|
|||
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