diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c index 574672f001f7..8296f7f5f0ba 100644 --- a/arch/arm64/kernel/vdso.c +++ b/arch/arm64/kernel/vdso.c @@ -211,7 +211,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm) void update_vsyscall(struct timekeeper *tk) { struct timespec xtime_coarse; - u32 use_syscall = strcmp(tk->clock->name, "arch_sys_counter"); + u32 use_syscall = strcmp(tk->tkr.clock->name, "arch_sys_counter"); ++vdso_data->tb_seq_count; smp_wmb(); @@ -224,11 +224,11 @@ void update_vsyscall(struct timekeeper *tk) vdso_data->wtm_clock_nsec = tk->wall_to_monotonic.tv_nsec; if (!use_syscall) { - vdso_data->cs_cycle_last = tk->cycle_last; + vdso_data->cs_cycle_last = tk->tkr.cycle_last; vdso_data->xtime_clock_sec = tk->xtime_sec; - vdso_data->xtime_clock_nsec = tk->xtime_nsec; - vdso_data->cs_mult = tk->mult; - vdso_data->cs_shift = tk->shift; + vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec; + vdso_data->cs_mult = tk->tkr.mult; + vdso_data->cs_shift = tk->tkr.shift; } smp_wmb(); diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 97950f392613..4cef607f3711 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -214,26 +214,26 @@ void update_vsyscall(struct timekeeper *tk) { u64 nsecps; - if (tk->clock != &clocksource_tod) + if (tk->tkr.clock != &clocksource_tod) return; /* Make userspace gettimeofday spin until we're done. */ ++vdso_data->tb_update_count; smp_wmb(); - vdso_data->xtime_tod_stamp = tk->cycle_last; + vdso_data->xtime_tod_stamp = tk->tkr.cycle_last; vdso_data->xtime_clock_sec = tk->xtime_sec; - vdso_data->xtime_clock_nsec = tk->xtime_nsec; + vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec; vdso_data->wtom_clock_sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec; - vdso_data->wtom_clock_nsec = tk->xtime_nsec + - + ((u64) tk->wall_to_monotonic.tv_nsec << tk->shift); - nsecps = (u64) NSEC_PER_SEC << tk->shift; + vdso_data->wtom_clock_nsec = tk->tkr.xtime_nsec + + + ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr.shift); + nsecps = (u64) NSEC_PER_SEC << tk->tkr.shift; while (vdso_data->wtom_clock_nsec >= nsecps) { vdso_data->wtom_clock_nsec -= nsecps; vdso_data->wtom_clock_sec++; } - vdso_data->tk_mult = tk->mult; - vdso_data->tk_shift = tk->shift; + vdso_data->tk_mult = tk->tkr.mult; + vdso_data->tk_shift = tk->tkr.shift; smp_wmb(); ++vdso_data->tb_update_count; } diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c index d22d5bfc1e4e..d8fbc289e680 100644 --- a/arch/tile/kernel/time.c +++ b/arch/tile/kernel/time.c @@ -261,7 +261,7 @@ void update_vsyscall_tz(void) void update_vsyscall(struct timekeeper *tk) { struct timespec *wtm = &tk->wall_to_monotonic; - struct clocksource *clock = tk->clock; + struct clocksource *clock = tk->tkr.clock; if (clock != &cycle_counter_cs) return; @@ -269,13 +269,13 @@ void update_vsyscall(struct timekeeper *tk) /* Userspace gettimeofday will spin while this value is odd. */ ++vdso_data->tb_update_count; smp_wmb(); - vdso_data->xtime_tod_stamp = tk->cycle_last; + vdso_data->xtime_tod_stamp = tk->tkr.cycle_last; vdso_data->xtime_clock_sec = tk->xtime_sec; - vdso_data->xtime_clock_nsec = tk->xtime_nsec; + vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec; vdso_data->wtom_clock_sec = wtm->tv_sec; vdso_data->wtom_clock_nsec = wtm->tv_nsec; - vdso_data->mult = tk->mult; - vdso_data->shift = tk->shift; + vdso_data->mult = tk->tkr.mult; + vdso_data->shift = tk->tkr.shift; smp_wmb(); ++vdso_data->tb_update_count; } diff --git a/arch/x86/kernel/vsyscall_gtod.c b/arch/x86/kernel/vsyscall_gtod.c index c3cb3c144591..c7d791f32b98 100644 --- a/arch/x86/kernel/vsyscall_gtod.c +++ b/arch/x86/kernel/vsyscall_gtod.c @@ -31,29 +31,30 @@ void update_vsyscall(struct timekeeper *tk) gtod_write_begin(vdata); /* copy vsyscall data */ - vdata->vclock_mode = tk->clock->archdata.vclock_mode; - vdata->cycle_last = tk->cycle_last; - vdata->mask = tk->clock->mask; - vdata->mult = tk->mult; - vdata->shift = tk->shift; + vdata->vclock_mode = tk->tkr.clock->archdata.vclock_mode; + vdata->cycle_last = tk->tkr.cycle_last; + vdata->mask = tk->tkr.mask; + vdata->mult = tk->tkr.mult; + vdata->shift = tk->tkr.shift; vdata->wall_time_sec = tk->xtime_sec; - vdata->wall_time_snsec = tk->xtime_nsec; + vdata->wall_time_snsec = tk->tkr.xtime_nsec; vdata->monotonic_time_sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec; - vdata->monotonic_time_snsec = tk->xtime_nsec + vdata->monotonic_time_snsec = tk->tkr.xtime_nsec + ((u64)tk->wall_to_monotonic.tv_nsec - << tk->shift); + << tk->tkr.shift); while (vdata->monotonic_time_snsec >= - (((u64)NSEC_PER_SEC) << tk->shift)) { + (((u64)NSEC_PER_SEC) << tk->tkr.shift)) { vdata->monotonic_time_snsec -= - ((u64)NSEC_PER_SEC) << tk->shift; + ((u64)NSEC_PER_SEC) << tk->tkr.shift; vdata->monotonic_time_sec++; } vdata->wall_time_coarse_sec = tk->xtime_sec; - vdata->wall_time_coarse_nsec = (long)(tk->xtime_nsec >> tk->shift); + vdata->wall_time_coarse_nsec = (long)(tk->tkr.xtime_nsec >> + tk->tkr.shift); vdata->monotonic_time_coarse_sec = vdata->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7b25125f3f42..b7e57946d1c1 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -995,19 +995,19 @@ static void update_pvclock_gtod(struct timekeeper *tk) struct pvclock_gtod_data *vdata = &pvclock_gtod_data; u64 boot_ns; - boot_ns = ktime_to_ns(ktime_add(tk->base_mono, tk->offs_boot)); + boot_ns = ktime_to_ns(ktime_add(tk->tkr.base_mono, tk->offs_boot)); write_seqcount_begin(&vdata->seq); /* copy pvclock gtod data */ - vdata->clock.vclock_mode = tk->clock->archdata.vclock_mode; - vdata->clock.cycle_last = tk->cycle_last; - vdata->clock.mask = tk->clock->mask; - vdata->clock.mult = tk->mult; - vdata->clock.shift = tk->shift; + vdata->clock.vclock_mode = tk->tkr.clock->archdata.vclock_mode; + vdata->clock.cycle_last = tk->tkr.cycle_last; + vdata->clock.mask = tk->tkr.mask; + vdata->clock.mult = tk->tkr.mult; + vdata->clock.shift = tk->tkr.shift; vdata->boot_ns = boot_ns; - vdata->nsec_base = tk->xtime_nsec; + vdata->nsec_base = tk->tkr.xtime_nsec; write_seqcount_end(&vdata->seq); } diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h index 75bb8add78f5..97381997625b 100644 --- a/include/linux/timekeeper_internal.h +++ b/include/linux/timekeeper_internal.h @@ -10,80 +10,87 @@ #include #include -/* - * Structure holding internal timekeeping values. +/** + * struct tk_read_base - base structure for timekeeping readout + * @clock: Current clocksource used for timekeeping. + * @read: Read function of @clock + * @mask: Bitmask for two's complement subtraction of non 64bit clocks + * @cycle_last: @clock cycle value at last update + * @mult: NTP adjusted multiplier for scaled math conversion + * @shift: Shift value for scaled math conversion + * @xtime_nsec: Shifted (fractional) nano seconds offset for readout + * @base_mono: ktime_t (nanoseconds) base time for readout * - * Note: wall_to_monotonic is what we need to add to xtime (or xtime - * corrected for sub jiffie times) to get to monotonic time. - * Monotonic is pegged at zero at system boot time, so - * wall_to_monotonic will be negative, however, we will ALWAYS keep - * the tv_nsec part positive so we can use the usual normalization. + * This struct has size 56 byte on 64 bit. Together with a seqcount it + * occupies a single 64byte cache line. + * + * The struct is separate from struct timekeeper as it is also used + * for a fast NMI safe accessor to clock monotonic. + */ +struct tk_read_base { + struct clocksource *clock; + cycle_t (*read)(struct clocksource *cs); + cycle_t mask; + cycle_t cycle_last; + u32 mult; + u32 shift; + u64 xtime_nsec; + ktime_t base_mono; +}; + +/** + * struct timekeeper - Structure holding internal timekeeping values. + * @tkr: The readout base structure + * @xtime_sec: Current CLOCK_REALTIME time in seconds + * @wall_to_monotonic: CLOCK_REALTIME to CLOCK_MONOTONIC offset + * @offs_real: Offset clock monotonic -> clock realtime + * @offs_boot: Offset clock monotonic -> clock boottime + * @offs_tai: Offset clock monotonic -> clock tai + * @tai_offset: The current UTC to TAI offset in seconds + * @base_raw: Monotonic raw base time in ktime_t format + * @raw_time: Monotonic raw base time in timespec64 format + * @cycle_interval: Number of clock cycles in one NTP interval + * @xtime_interval: Number of clock shifted nano seconds in one NTP + * interval. + * @xtime_remainder: Shifted nano seconds left over when rounding + * @cycle_interval + * @raw_interval: Raw nano seconds accumulated per NTP interval. + * @ntp_error: Difference between accumulated time and NTP time in ntp + * shifted nano seconds. + * @ntp_error_shift: Shift conversion between clock shifted nano seconds and + * ntp shifted nano seconds. + * + * Note: For timespec(64) based interfaces wall_to_monotonic is what + * we need to add to xtime (or xtime corrected for sub jiffie times) + * to get to monotonic time. Monotonic is pegged at zero at system + * boot time, so wall_to_monotonic will be negative, however, we will + * ALWAYS keep the tv_nsec part positive so we can use the usual + * normalization. * * wall_to_monotonic is moved after resume from suspend for the - * monotonic time not to jump. To calculate the real boot time offset - * we need to do offs_real - offs_boot. + * monotonic time not to jump. We need to add total_sleep_time to + * wall_to_monotonic to get the real boot based time offset. * - * - wall_to_monotonic is no longer the boot time, getboottime must be + * wall_to_monotonic is no longer the boot time, getboottime must be * used instead. */ struct timekeeper { - /* Current clocksource used for timekeeping. */ - struct clocksource *clock; - /* Read function of @clock */ - cycle_t (*read)(struct clocksource *cs); - /* Bitmask for two's complement subtraction of non 64bit counters */ - cycle_t mask; - /* Last cycle value */ - cycle_t cycle_last; - /* NTP adjusted clock multiplier */ - u32 mult; - /* The shift value of the current clocksource. */ - u32 shift; - /* Clock shifted nano seconds */ - u64 xtime_nsec; - - /* Monotonic base time */ - ktime_t base_mono; - - /* Current CLOCK_REALTIME time in seconds */ + struct tk_read_base tkr; u64 xtime_sec; - /* CLOCK_REALTIME to CLOCK_MONOTONIC offset */ struct timespec64 wall_to_monotonic; - - /* Offset clock monotonic -> clock realtime */ ktime_t offs_real; - /* Offset clock monotonic -> clock boottime */ ktime_t offs_boot; - /* Offset clock monotonic -> clock tai */ ktime_t offs_tai; - - /* The current UTC to TAI offset in seconds */ s32 tai_offset; - - /* Monotonic raw base time */ ktime_t base_raw; - - /* The raw monotonic time for the CLOCK_MONOTONIC_RAW posix clock. */ struct timespec64 raw_time; - /* Number of clock cycles in one NTP interval. */ + /* The following members are for timekeeping internal use */ cycle_t cycle_interval; - /* Number of clock shifted nano seconds in one NTP interval. */ u64 xtime_interval; - /* shifted nano seconds left over when rounding cycle_interval */ s64 xtime_remainder; - /* Raw nano seconds accumulated per NTP interval. */ u32 raw_interval; - - /* - * Difference between accumulated time and NTP time in ntp - * shifted nano seconds. - */ s64 ntp_error; - /* - * Shift conversion between clock shifted nano seconds and - * ntp shifted nano seconds. - */ u32 ntp_error_shift; }; diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 14b7367e6b94..ccb69980ef7e 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -52,8 +52,8 @@ bool __read_mostly persistent_clock_exist = false; static inline void tk_normalize_xtime(struct timekeeper *tk) { - while (tk->xtime_nsec >= ((u64)NSEC_PER_SEC << tk->shift)) { - tk->xtime_nsec -= (u64)NSEC_PER_SEC << tk->shift; + while (tk->tkr.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr.shift)) { + tk->tkr.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr.shift; tk->xtime_sec++; } } @@ -63,20 +63,20 @@ static inline struct timespec64 tk_xtime(struct timekeeper *tk) struct timespec64 ts; ts.tv_sec = tk->xtime_sec; - ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift); + ts.tv_nsec = (long)(tk->tkr.xtime_nsec >> tk->tkr.shift); return ts; } static void tk_set_xtime(struct timekeeper *tk, const struct timespec64 *ts) { tk->xtime_sec = ts->tv_sec; - tk->xtime_nsec = (u64)ts->tv_nsec << tk->shift; + tk->tkr.xtime_nsec = (u64)ts->tv_nsec << tk->tkr.shift; } static void tk_xtime_add(struct timekeeper *tk, const struct timespec64 *ts) { tk->xtime_sec += ts->tv_sec; - tk->xtime_nsec += (u64)ts->tv_nsec << tk->shift; + tk->tkr.xtime_nsec += (u64)ts->tv_nsec << tk->tkr.shift; tk_normalize_xtime(tk); } @@ -119,11 +119,11 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock) u64 tmp, ntpinterval; struct clocksource *old_clock; - old_clock = tk->clock; - tk->clock = clock; - tk->read = clock->read; - tk->mask = clock->mask; - tk->cycle_last = tk->read(clock); + old_clock = tk->tkr.clock; + tk->tkr.clock = clock; + tk->tkr.read = clock->read; + tk->tkr.mask = clock->mask; + tk->tkr.cycle_last = tk->tkr.read(clock); /* Do the ns -> cycle conversion first, using original mult */ tmp = NTP_INTERVAL_LENGTH; @@ -147,11 +147,11 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock) if (old_clock) { int shift_change = clock->shift - old_clock->shift; if (shift_change < 0) - tk->xtime_nsec >>= -shift_change; + tk->tkr.xtime_nsec >>= -shift_change; else - tk->xtime_nsec <<= shift_change; + tk->tkr.xtime_nsec <<= shift_change; } - tk->shift = clock->shift; + tk->tkr.shift = clock->shift; tk->ntp_error = 0; tk->ntp_error_shift = NTP_SCALE_SHIFT - clock->shift; @@ -161,7 +161,7 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock) * active clocksource. These value will be adjusted via NTP * to counteract clock drifting. */ - tk->mult = clock->mult; + tk->tkr.mult = clock->mult; } /* Timekeeper helper functions. */ @@ -179,13 +179,13 @@ static inline s64 timekeeping_get_ns(struct timekeeper *tk) s64 nsec; /* read clocksource: */ - cycle_now = tk->read(tk->clock); + cycle_now = tk->tkr.read(tk->tkr.clock); /* calculate the delta since the last update_wall_time: */ - delta = clocksource_delta(cycle_now, tk->cycle_last, tk->mask); + delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask); - nsec = delta * tk->mult + tk->xtime_nsec; - nsec >>= tk->shift; + nsec = delta * tk->tkr.mult + tk->tkr.xtime_nsec; + nsec >>= tk->tkr.shift; /* If arch requires, add in get_arch_timeoffset() */ return nsec + arch_gettimeoffset(); @@ -193,15 +193,15 @@ static inline s64 timekeeping_get_ns(struct timekeeper *tk) static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk) { - struct clocksource *clock = tk->clock; + struct clocksource *clock = tk->tkr.clock; cycle_t cycle_now, delta; s64 nsec; /* read clocksource: */ - cycle_now = tk->read(clock); + cycle_now = tk->tkr.read(clock); /* calculate the delta since the last update_wall_time: */ - delta = clocksource_delta(cycle_now, tk->cycle_last, tk->mask); + delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask); /* convert delta to nanoseconds. */ nsec = clocksource_cyc2ns(delta, clock->mult, clock->shift); @@ -217,8 +217,8 @@ static inline void update_vsyscall(struct timekeeper *tk) struct timespec xt; xt = tk_xtime(tk); - update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult, - tk->cycle_last); + update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->tkr.clock, tk->tkr.mult, + tk->tkr.cycle_last); } static inline void old_vsyscall_fixup(struct timekeeper *tk) @@ -235,11 +235,11 @@ 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->xtime_nsec & ((1ULL << tk->shift) - 1); - tk->xtime_nsec -= remainder; - tk->xtime_nsec += 1ULL << tk->shift; + remainder = tk->tkr.xtime_nsec & ((1ULL << tk->tkr.shift) - 1); + tk->tkr.xtime_nsec -= remainder; + tk->tkr.xtime_nsec += 1ULL << tk->tkr.shift; tk->ntp_error += remainder << tk->ntp_error_shift; - tk->ntp_error -= (1ULL << tk->shift) << tk->ntp_error_shift; + tk->ntp_error -= (1ULL << tk->tkr.shift) << tk->ntp_error_shift; } #else #define old_vsyscall_fixup(tk) @@ -304,7 +304,7 @@ static inline void tk_update_ktime_data(struct timekeeper *tk) nsec = (s64)(tk->xtime_sec + tk->wall_to_monotonic.tv_sec); nsec *= NSEC_PER_SEC; nsec += tk->wall_to_monotonic.tv_nsec; - tk->base_mono = ns_to_ktime(nsec); + tk->tkr.base_mono = ns_to_ktime(nsec); /* Update the monotonic raw base */ tk->base_raw = timespec64_to_ktime(tk->raw_time); @@ -336,18 +336,18 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action) */ static void timekeeping_forward_now(struct timekeeper *tk) { - struct clocksource *clock = tk->clock; + struct clocksource *clock = tk->tkr.clock; cycle_t cycle_now, delta; s64 nsec; - cycle_now = tk->read(clock); - delta = clocksource_delta(cycle_now, tk->cycle_last, tk->mask); - tk->cycle_last = cycle_now; + cycle_now = tk->tkr.read(clock); + delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask); + tk->tkr.cycle_last = cycle_now; - tk->xtime_nsec += delta * tk->mult; + tk->tkr.xtime_nsec += delta * tk->tkr.mult; /* If arch requires, add in get_arch_timeoffset() */ - tk->xtime_nsec += (u64)arch_gettimeoffset() << tk->shift; + tk->tkr.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr.shift; tk_normalize_xtime(tk); @@ -412,7 +412,7 @@ ktime_t ktime_get(void) do { seq = read_seqcount_begin(&tk_core.seq); - base = tk->base_mono; + base = tk->tkr.base_mono; nsecs = timekeeping_get_ns(tk); } while (read_seqcount_retry(&tk_core.seq, seq)); @@ -438,7 +438,7 @@ ktime_t ktime_get_with_offset(enum tk_offsets offs) do { seq = read_seqcount_begin(&tk_core.seq); - base = ktime_add(tk->base_mono, *offset); + base = ktime_add(tk->tkr.base_mono, *offset); nsecs = timekeeping_get_ns(tk); } while (read_seqcount_retry(&tk_core.seq, seq)); @@ -731,7 +731,7 @@ static int change_clocksource(void *data) */ if (try_module_get(new->owner)) { if (!new->enable || new->enable(new) == 0) { - old = tk->clock; + old = tk->tkr.clock; tk_setup_internals(tk, new); if (old->disable) old->disable(old); @@ -759,11 +759,11 @@ int timekeeping_notify(struct clocksource *clock) { struct timekeeper *tk = &tk_core.timekeeper; - if (tk->clock == clock) + if (tk->tkr.clock == clock) return 0; stop_machine(change_clocksource, clock, NULL); tick_clock_notify(); - return tk->clock == clock ? 0 : -1; + return tk->tkr.clock == clock ? 0 : -1; } /** @@ -803,7 +803,7 @@ int timekeeping_valid_for_hres(void) do { seq = read_seqcount_begin(&tk_core.seq); - ret = tk->clock->flags & CLOCK_SOURCE_VALID_FOR_HRES; + ret = tk->tkr.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES; } while (read_seqcount_retry(&tk_core.seq, seq)); @@ -822,7 +822,7 @@ u64 timekeeping_max_deferment(void) do { seq = read_seqcount_begin(&tk_core.seq); - ret = tk->clock->max_idle_ns; + ret = tk->tkr.clock->max_idle_ns; } while (read_seqcount_retry(&tk_core.seq, seq)); @@ -989,7 +989,7 @@ void timekeeping_inject_sleeptime(struct timespec *delta) static void timekeeping_resume(void) { struct timekeeper *tk = &tk_core.timekeeper; - struct clocksource *clock = tk->clock; + struct clocksource *clock = tk->tkr.clock; unsigned long flags; struct timespec64 ts_new, ts_delta; struct timespec tmp; @@ -1017,16 +1017,16 @@ static 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->read(clock); + cycle_now = tk->tkr.read(clock); if ((clock->flags & CLOCK_SOURCE_SUSPEND_NONSTOP) && - cycle_now > tk->cycle_last) { + cycle_now > tk->tkr.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->cycle_last, - tk->mask); + cycle_delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, + tk->tkr.mask); /* * "cycle_delta * mutl" may cause 64 bits overflow, if the @@ -1052,7 +1052,7 @@ static void timekeeping_resume(void) __timekeeping_inject_sleeptime(tk, &ts_delta); /* Re-base the last cycle value */ - tk->cycle_last = cycle_now; + tk->tkr.cycle_last = cycle_now; tk->ntp_error = 0; timekeeping_suspended = 0; timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET); @@ -1239,12 +1239,12 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset) } } - if (unlikely(tk->clock->maxadj && - (tk->mult + adj > tk->clock->mult + tk->clock->maxadj))) { + if (unlikely(tk->tkr.clock->maxadj && + (tk->tkr.mult + adj > tk->tkr.clock->mult + tk->tkr.clock->maxadj))) { printk_deferred_once(KERN_WARNING "Adjusting %s more than 11%% (%ld vs %ld)\n", - tk->clock->name, (long)tk->mult + adj, - (long)tk->clock->mult + tk->clock->maxadj); + tk->tkr.clock->name, (long)tk->tkr.mult + adj, + (long)tk->tkr.clock->mult + tk->tkr.clock->maxadj); } /* * So the following can be confusing. @@ -1295,9 +1295,9 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset) * * XXX - TODO: Doc ntp_error calculation. */ - tk->mult += adj; + tk->tkr.mult += adj; tk->xtime_interval += interval; - tk->xtime_nsec -= offset; + tk->tkr.xtime_nsec -= offset; tk->ntp_error -= (interval - offset) << tk->ntp_error_shift; out_adjust: @@ -1315,9 +1315,9 @@ 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->xtime_nsec < 0)) { - s64 neg = -(s64)tk->xtime_nsec; - tk->xtime_nsec = 0; + if (unlikely((s64)tk->tkr.xtime_nsec < 0)) { + s64 neg = -(s64)tk->tkr.xtime_nsec; + tk->tkr.xtime_nsec = 0; tk->ntp_error += neg << tk->ntp_error_shift; } @@ -1333,13 +1333,13 @@ 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->shift; + u64 nsecps = (u64)NSEC_PER_SEC << tk->tkr.shift; unsigned int clock_set = 0; - while (tk->xtime_nsec >= nsecps) { + while (tk->tkr.xtime_nsec >= nsecps) { int leap; - tk->xtime_nsec -= nsecps; + tk->tkr.xtime_nsec -= nsecps; tk->xtime_sec++; /* Figure out if its a leap sec and apply if needed */ @@ -1384,9 +1384,9 @@ static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset, /* Accumulate one shifted interval */ offset -= interval; - tk->cycle_last += interval; + tk->tkr.cycle_last += interval; - tk->xtime_nsec += tk->xtime_interval << shift; + tk->tkr.xtime_nsec += tk->xtime_interval << shift; *clock_set |= accumulate_nsecs_to_secs(tk); /* Accumulate raw time */ @@ -1429,8 +1429,8 @@ void update_wall_time(void) #ifdef CONFIG_ARCH_USES_GETTIMEOFFSET offset = real_tk->cycle_interval; #else - offset = clocksource_delta(tk->read(tk->clock), tk->cycle_last, - tk->mask); + offset = clocksource_delta(tk->tkr.read(tk->tkr.clock), + tk->tkr.cycle_last, tk->tkr.mask); #endif /* Check if there's really nothing to do */ @@ -1591,8 +1591,8 @@ 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->base_mono; - nsecs = tk->xtime_nsec >> tk->shift; + base = tk->tkr.base_mono; + nsecs = tk->tkr.xtime_nsec >> tk->tkr.shift; *offs_real = tk->offs_real; *offs_boot = tk->offs_boot; @@ -1623,7 +1623,7 @@ 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->base_mono; + base = tk->tkr.base_mono; nsecs = timekeeping_get_ns(tk); *offs_real = tk->offs_real;