Fix ~56 single-word typos in timekeeping & clocksource code comments.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
#define RATE_32K 32768
-#define TIMER_MODE_CONTINOUS 0x1
+#define TIMER_MODE_CONTINUOUS 0x1
#define TIMER_DOWNCOUNT_VAL 0xffffffff
#define PRCMU_TIMER_REF 0
/*
* The A9 sub system expects the timer to be configured as
- * a continous looping timer.
+ * a continuous looping timer.
* The PRCMU should configure it but if it for some reason
* don't we do it here.
*/
if (readl(clksrc_dbx500_timer_base + PRCMU_TIMER_MODE) !=
- TIMER_MODE_CONTINOUS) {
- writel(TIMER_MODE_CONTINOUS,
+ TIMER_MODE_CONTINUOUS) {
+ writel(TIMER_MODE_CONTINUOUS,
clksrc_dbx500_timer_base + PRCMU_TIMER_MODE);
writel(TIMER_DOWNCOUNT_VAL,
clksrc_dbx500_timer_base + PRCMU_TIMER_REF);
}
/*
- * Not all implementations use a periphal clock, so don't panic
+ * Not all implementations use a peripheral clock, so don't panic
* if it's not present
*/
pclk = of_clk_get_by_name(np, "pclk");
{
/*
* Try to set up the TSC page clocksource. If it succeeds, we're
- * done. Otherwise, set up the MSR clocksoruce. At least one of
+ * done. Otherwise, set up the MSR clocksource. At least one of
* these will always be available except on very old versions of
* Hyper-V on x86. In that case we won't have a Hyper-V
* clocksource, but Linux will still run with a clocksource based
tcaddr = tc.regs;
if (bits == 32) {
- /* use apropriate function to read 32 bit counter */
+ /* use appropriate function to read 32 bit counter */
clksrc.read = tc_get_cycles32;
- /* setup ony channel 0 */
+ /* setup only channel 0 */
tcb_setup_single_chan(&tc, best_divisor_idx);
tc_sched_clock = tc_sched_clock_read32;
tc_delay_timer.read_current_timer = tc_delay_timer_read32;
* to the MOD register latches the value into a buffer. The MOD
* register is updated with the value of its write buffer with
* the following scenario:
- * a, the counter source clock is diabled.
+ * a, the counter source clock is disabled.
*/
ftm_counter_disable(priv->clkevt_base);
break;
}
- /* Use the bigest prescaler if we didn't match one. */
+ /* Use the biggest prescaler if we didn't match one. */
if (*pres == MCHP_PIT64B_PRES_MAX)
*pres = MCHP_PIT64B_PRES_MAX - 1;
}
}
/**
- * timer_of_cleanup - release timer_of ressources
+ * timer_of_cleanup - release timer_of resources
* @to: timer_of structure
*
- * Release the ressources that has been used in timer_of_init().
+ * Release the resources that has been used in timer_of_init().
* This function should be called in init error cases
*/
void __init timer_of_cleanup(struct timer_of *to)
"always-on " : "", t->rate, np->parent);
clockevents_config_and_register(dev, t->rate,
- 3, /* Timer internal resynch latency */
+ 3, /* Timer internal resync latency */
0xffffffff);
if (of_machine_is_compatible("ti,am33xx") ||
/*
* The value for the LDVAL register trigger is calculated as:
* LDVAL trigger = (period / clock period) - 1
- * The pit is a 32-bit down count timer, when the conter value
+ * The pit is a 32-bit down count timer, when the counter value
* reaches 0, it will generate an interrupt, thus the minimal
* LDVAL trigger value is 1. And then the min_delta is
* minimal LDVAL trigger value + 1, and the max_delta is full 32-bit.
* @mark_unstable: Optional function to inform the clocksource driver that
* the watchdog marked the clocksource unstable
* @tick_stable: Optional function called periodically from the watchdog
- * code to provide stable syncrhonization points
+ * code to provide stable synchronization points
* @wd_list: List head to enqueue into the watchdog list (internal)
* @cs_last: Last clocksource value for clocksource watchdog
* @wd_last: Last watchdog value corresponding to @cs_last
/*
* kernel variables
- * Note: maximum error = NTP synch distance = dispersion + delay / 2;
+ * Note: maximum error = NTP sync distance = dispersion + delay / 2;
* estimated error = NTP dispersion.
*/
extern unsigned long tick_usec; /* USER_HZ period (usec) */
/*
* Alarmtimer interface
*
- * This interface provides a timer which is similarto hrtimers,
+ * This interface provides a timer which is similar to hrtimers,
* but triggers a RTC alarm if the box is suspend.
*
* This interface is influenced by the Android RTC Alarm timer
* interface.
*
- * Copyright (C) 2010 IBM Corperation
+ * Copyright (C) 2010 IBM Corporation
*
* Author: John Stultz <john.stultz@linaro.org>
*/
/**
* alarm_timer_nsleep - alarmtimer nanosleep
* @which_clock: clockid
- * @flags: determins abstime or relative
+ * @flags: determines abstime or relative
* @tsreq: requested sleep time (abs or rel)
*
* Handles clock_nanosleep calls against _ALARM clockids
* calculated mult and shift factors. This guarantees that no 64bit
* overflow happens when the input value of the conversion is
* multiplied with the calculated mult factor. Larger ranges may
- * reduce the conversion accuracy by chosing smaller mult and shift
+ * reduce the conversion accuracy by choosing smaller mult and shift
* factors.
*/
void
* the suspend time when resuming system.
*
* This function is called late in the suspend process from timekeeping_suspend(),
- * that means processes are freezed, non-boot cpus and interrupts are disabled
+ * that means processes are frozen, non-boot cpus and interrupts are disabled
* now. It is therefore possible to start the suspend timer without taking the
* clocksource mutex.
*/
* T1 is removed, so this code is called and would reprogram
* the hardware to 5s from now. Any hrtimer_start after that
* will not reprogram the hardware due to hang_detected being
- * set. So we'd effectivly block all timers until the T2 event
+ * set. So we'd effectively block all timers until the T2 event
* fires.
*/
if (!__hrtimer_hres_active(cpu_base) || cpu_base->hang_detected)
* cpu_base->next_timer. This happens when we remove the first
* timer on a remote cpu. No harm as we never dereference
* cpu_base->next_timer. So the worst thing what can happen is
- * an superflous call to hrtimer_force_reprogram() on the
+ * an superfluous call to hrtimer_force_reprogram() on the
* remote cpu later on if the same timer gets enqueued again.
*/
if (reprogram && timer == cpu_base->next_timer)
* The counterpart to hrtimer_cancel_wait_running().
*
* If there is a waiter for cpu_base->expiry_lock, then it was waiting for
- * the timer callback to finish. Drop expiry_lock and reaquire it. That
+ * the timer callback to finish. Drop expiry_lock and reacquire it. That
* allows the waiter to acquire the lock and make progress.
*/
static void hrtimer_sync_wait_running(struct hrtimer_cpu_base *cpu_base,
int base;
/*
- * On PREEMPT_RT enabled kernels hrtimers which are not explicitely
+ * On PREEMPT_RT enabled kernels hrtimers which are not explicitly
* marked for hard interrupt expiry mode are moved into soft
* interrupt context for latency reasons and because the callbacks
* can invoke functions which might sleep on RT, e.g. spin_lock().
* hrtimer_init - initialize a timer to the given clock
* @timer: the timer to be initialized
* @clock_id: the clock to be used
- * @mode: The modes which are relevant for intitialization:
+ * @mode: The modes which are relevant for initialization:
* HRTIMER_MODE_ABS, HRTIMER_MODE_REL, HRTIMER_MODE_ABS_SOFT,
* HRTIMER_MODE_REL_SOFT
*
* insufficient for that.
*
* The sequence numbers are required because otherwise we could still observe
- * a false negative if the read side got smeared over multiple consequtive
+ * a false negative if the read side got smeared over multiple consecutive
* __run_hrtimer() invocations.
*/
* minimizing wakeups, not running timers at the
* earliest interrupt after their soft expiration.
* This allows us to avoid using a Priority Search
- * Tree, which can answer a stabbing querry for
+ * Tree, which can answer a stabbing query for
* overlapping intervals and instead use the simple
* BST we already have.
* We don't add extra wakeups by delaying timers that
clockid_t clock_id, enum hrtimer_mode mode)
{
/*
- * On PREEMPT_RT enabled kernels hrtimers which are not explicitely
+ * On PREEMPT_RT enabled kernels hrtimers which are not explicitly
* marked for hard interrupt expiry mode are moved into soft
* interrupt context either for latency reasons or because the
* hrtimer callback takes regular spinlocks or invokes other
* the same CPU. That causes a latency spike due to the wakeup of
* a gazillion threads.
*
- * OTOH, priviledged real-time user space applications rely on the
+ * OTOH, privileged real-time user space applications rely on the
* low latency of hard interrupt wakeups. If the current task is in
* a real-time scheduling class, mark the mode for hard interrupt
* expiry.
* the timer interrupt frequency HZ and it suffers
* inaccuracies caused by missed or lost timer
* interrupts and the inability for the timer
- * interrupt hardware to accuratly tick at the
+ * interrupt hardware to accurately tick at the
* requested HZ value. It is also not recommended
* for "tick-less" systems.
*/
struct timespec64 *to_set,
const struct timespec64 *now)
{
- /* Allowed error in tv_nsec, arbitarily set to 5 jiffies in ns. */
+ /* Allowed error in tv_nsec, arbitrarily set to 5 jiffies in ns. */
const unsigned long TIME_SET_NSEC_FUZZ = TICK_NSEC * 5;
struct timespec64 delay = {.tv_sec = -1,
.tv_nsec = set_offset_nsec};
* @tsk: Task for which cputime needs to be started
* @samples: Storage for time samples
*
- * The thread group cputime accouting is avoided when there are no posix
+ * The thread group cputime accounting is avoided when there are no posix
* CPU timers armed. Before starting a timer it's required to check whether
* the time accounting is active. If not, a full update of the atomic
* accounting store needs to be done and the accounting enabled.
/*
* If posix timer expiry is handled in task work context then
* timer::it_lock can be taken without disabling interrupts as all
- * other locking happens in task context. This requires a seperate
+ * other locking happens in task context. This requires a separate
* lock class key otherwise regular posix timer expiry would record
* the lock class being taken in interrupt context and generate a
* false positive warning.
check_process_timers(tsk, &firing);
/*
- * The above timer checks have updated the exipry cache and
+ * The above timer checks have updated the expiry cache and
* because nothing can have queued or modified timers after
* sighand lock was taken above it is guaranteed to be
* consistent. So the next timer interrupt fastpath check
* reasons.
*
* Each caller tries to arm the hrtimer on its own CPU, but if the
- * hrtimer callbback function is currently running, then
+ * hrtimer callback function is currently running, then
* hrtimer_start() cannot move it and the timer stays on the CPU on
* which it is assigned at the moment.
*
}
/*
- * Check, if the device is disfunctional and a place holder, which
+ * Check, if the device is dysfunctional and a placeholder, which
* needs to be handled by the broadcast device.
*/
int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu)
* - the broadcast device exists
* - the broadcast device is not a hrtimer based one
* - the broadcast device is in periodic mode to
- * avoid a hickup during switch to oneshot mode
+ * avoid a hiccup during switch to oneshot mode
*/
if (bc && !(bc->features & CLOCK_EVT_FEAT_HRTIMER) &&
tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
}
/**
- * tick_resume_onshot - resume oneshot mode
+ * tick_resume_oneshot - resume oneshot mode
*/
void tick_resume_oneshot(void)
{
* Aside of that check whether the local timer softirq is
* pending. If so its a bad idea to call get_next_timer_interrupt()
* because there is an already expired timer, so it will request
- * immeditate expiry, which rearms the hardware timer with a
+ * immediate expiry, which rearms the hardware timer with a
* minimal delta which brings us back to this place
* immediately. Lather, rinse and repeat...
*/
* @inidle: Indicator that the CPU is in the tick idle mode
* @tick_stopped: Indicator that the idle tick has been stopped
* @idle_active: Indicator that the CPU is actively in the tick idle mode;
- * it is resetted during irq handling phases.
+ * it is reset during irq handling phases.
* @do_timer_lst: CPU was the last one doing do_timer before going idle
* @got_idle_tick: Tick timer function has run with @inidle set
* @last_tick: Store the last tick expiry time when the tick
/*
* The TICK_NSEC - 1 rounds up the value to the next resolution. Note
* that a remainder subtract here would not do the right thing as the
- * resolution values don't fall on second boundries. I.e. the line:
+ * resolution values don't fall on second boundaries. I.e. the line:
* nsec -= nsec % TICK_NSEC; is NOT a correct resolution rounding.
* Note that due to the small error in the multiplier here, this
* rounding is incorrect for sufficiently large values of tv_nsec, but
* careful cache layout of the timekeeper because the sequence count and
* struct tk_read_base would then need two cache lines instead of one.
*
- * Access to the time keeper clock source is disabled accross the innermost
+ * Access to the time keeper clock source is disabled across the innermost
* steps of suspend/resume. The accessors still work, but the timestamps
* are frozen until time keeping is resumed which happens very early.
*
* For regular suspend/resume there is no observable difference vs. sched
* clock, but it might affect some of the nasty low level debug printks.
*
- * OTOH, access to sched clock is not guaranteed accross suspend/resume on
+ * OTOH, access to sched clock is not guaranteed across suspend/resume on
* all systems either so it depends on the hardware in use.
*
* If that turns out to be a real problem then this could be mitigated by
EXPORT_SYMBOL_GPL(ktime_get_coarse_with_offset);
/**
- * ktime_mono_to_any() - convert mononotic time to any other time
+ * ktime_mono_to_any() - convert monotonic time to any other time
* @tmono: time to convert.
* @offs: which offset to use
*/
* xtime_nsec_1 = offset + xtime_nsec_2
* Which gives us:
* xtime_nsec_2 = xtime_nsec_1 - offset
- * Which simplfies to:
+ * Which simplifies to:
* xtime_nsec -= offset
*/
if ((mult_adj > 0) && (tk->tkr_mono.mult + mult_adj < mult_adj)) {
/*
* Validate if a timespec/timeval used to inject a time
- * offset is valid. Offsets can be postive or negative, so
+ * offset is valid. Offsets can be positive or negative, so
* we don't check tv_sec. The value of the timeval/timespec
* is the sum of its fields,but *NOTE*:
* The field tv_usec/tv_nsec must always be non-negative and
/*
* No need to forward if we are close enough below jiffies.
* Also while executing timers, base->clk is 1 offset ahead
- * of jiffies to avoid endless requeuing to current jffies.
+ * of jiffies to avoid endless requeuing to current jiffies.
*/
if ((long)(jnow - base->clk) < 1)
return;
* The counterpart to del_timer_wait_running().
*
* If there is a waiter for base->expiry_lock, then it was waiting for the
- * timer callback to finish. Drop expiry_lock and reaquire it. That allows
+ * timer callback to finish. Drop expiry_lock and reacquire it. That allows
* the waiter to acquire the lock and make progress.
*/
static void timer_sync_wait_running(struct timer_base *base)
/*
* If the current clocksource is not VDSO capable, then spare the
- * update of the high reolution parts.
+ * update of the high resolution parts.
*/
if (clock_mode != VDSO_CLOCKMODE_NONE)
update_vdso_data(vdata, tk);
* (C) Copyright IBM 2012
* Licensed under the GPLv2
*
- * NOTE: This is a meta-test which quickly changes the clocksourc and
+ * NOTE: This is a meta-test which quickly changes the clocksource and
* then uses other tests to detect problems. Thus this test requires
* that the inconsistency-check and nanosleep tests be present in the
* same directory it is run from.
return -1;
}
- /* Check everything is sane before we start switching asyncrhonously */
+ /* Check everything is sane before we start switching asynchronously */
for (i = 0; i < count; i++) {
printf("Validating clocksource %s\n", clocksource_list[i]);
if (change_clocksource(clocksource_list[i])) {
* Licensed under the GPLv2
*
* This test signals the kernel to insert a leap second
- * every day at midnight GMT. This allows for stessing the
+ * every day at midnight GMT. This allows for stressing the
* kernel's leap-second behavior, as well as how well applications
* handle the leap-second discontinuity.
*
* (C) Copyright 2013, 2015 Linaro Limited
* Licensed under the GPL
*
- * This test demonstrates leapsecond deadlock that is possibe
+ * This test demonstrates leapsecond deadlock that is possible
* on kernels from 2.6.26 to 3.3.
*
- * WARNING: THIS WILL LIKELY HARDHANG SYSTEMS AND MAY LOSE DATA
+ * WARNING: THIS WILL LIKELY HARD HANG SYSTEMS AND MAY LOSE DATA
* RUN AT YOUR OWN RISK!
* To build:
* $ gcc leapcrash.c -o leapcrash -lrt
/* The shared thread shares a global list
* that each thread fills while holding the lock.
- * This stresses clock syncronization across cpus.
+ * This stresses clock synchronization across cpus.
*/
void *shared_thread(void *arg)
{
projects / users / hch / xfs.git / commitdiff