Lines Matching +full:no +full:- +full:tick +full:- +full:in +full:- +full:suspend

1 // SPDX-License-Identifier: GPL-2.0-only
7  *        tasks which are handled in sched/fair.c )
17  * sched_idle_set_state - Record idle state for the current CPU.
32 		cpu_idle_force_poll--;  in cpu_idle_poll_ctrl()
85  * default_idle_call - Default CPU idle routine.
105 		 * last -- this is very similar to the entry code.  in default_idle_call()
135 		return -EBUSY;  in call_cpuidle_s2idle()
145 	 * update no idle residency and return.  in call_cpuidle()
148 		dev->last_residency_ns = 0;  in call_cpuidle()
150 		return -EBUSY;  in call_cpuidle()
156 	 * care of re-enabling the local interrupts  in call_cpuidle()
162  * cpuidle_idle_call - the main idle function
164  * NOTE: no locks or semaphores should be used here
178 	 * case, exit the function after re-enabling the local irq.  in cpuidle_idle_call()
187 	 * section, so no more rcu read side critical sections and one more  in cpuidle_idle_call()
199 	 * Suspend-to-idle ("s2idle") is a system state in which all user space  in cpuidle_idle_call()
201 	 * activity happens here and in interrupts (if any). In that case bypass  in cpuidle_idle_call()
203 	 * available.  Possibly also suspend the local tick and the entire  in cpuidle_idle_call()
208 	if (idle_should_enter_s2idle() || dev->forced_idle_latency_limit_ns) {  in cpuidle_idle_call()
219 			max_latency_ns = dev->forced_idle_latency_limit_ns;  in cpuidle_idle_call()
267 	 * Our polling bit is clear if we're not scheduled (i.e. if rq->curr !=  in do_idle()
268 	 * rq->idle). This means that, if rq->idle has the polling bit set,  in do_idle()
290 		 * In poll mode we reenable interrupts and spin. Also if we  in do_idle()
291 		 * detected in the wakeup from idle path that the tick  in do_idle()
323 	 * RCU relies on this call to be done outside of an RCU read-side  in do_idle()
348 	WRITE_ONCE(it->done, 1);  in idle_inject_timer_fn()
359 	 * Only FIFO tasks can disable the tick since they don't need the forced  in play_idle_precise()
362 	WARN_ON_ONCE(current->policy != SCHED_FIFO);  in play_idle_precise()
363 	WARN_ON_ONCE(current->nr_cpus_allowed != 1);  in play_idle_precise()
364 	WARN_ON_ONCE(!(current->flags & PF_KTHREAD));  in play_idle_precise()
365 	WARN_ON_ONCE(!(current->flags & PF_NO_SETAFFINITY));  in play_idle_precise()
370 	current->flags |= PF_IDLE;  in play_idle_precise()
383 	current->flags &= ~PF_IDLE;  in play_idle_precise()
399  * idle-task scheduling class.
431 	schedstat_inc(rq->sched_goidle);  in set_next_task_idle()
436 	struct task_struct *next = rq->idle;  in pick_next_task_idle()
444  * It is not legal to sleep in the idle task - print a warning
450 	raw_spin_unlock_irq(&rq->lock);  in dequeue_task_idle()
453 	raw_spin_lock_irq(&rq->lock);  in dequeue_task_idle()
457  * scheduler tick hitting a task of our scheduling class.
459  * NOTE: This function can be called remotely by the tick offload that
460  * goes along full dynticks. Therefore no local assumption can be made
461  * and everything must be accessed through the @rq and @curr passed in
484  * Simple, special scheduling class for the per-CPU idle tasks:
488 	/* no enqueue/yield_task for idle tasks */