Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\chip.c Create Date:2022-07-28 10:11:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:handle_level_irq - Level type irq handler*@desc: the interrupt description structure for this irq* Level type interrupts are active as long as the hardware line has* the active level

Proto:void handle_level_irq(struct irq_desc *desc)

Type:void

Parameter:

TypeParameterName
struct irq_desc *desc
632  raw_spin_lock( & lock)
633  mask_ack_irq(desc)
635  If Not irq_may_run(desc) Then Go to out_unlock
638  istate &= ~(IRQS_REPLAY | IRQS_WAITING)
644  If Value for the false possibility is greater at compile time(! IRQ action list || irqd_irq_disabled( & irq_data)) Then
645  istate |= IRQS_PENDING
646  Go to out_unlock
649  kstat_incr_irqs_this_cpu(desc)
650  handle_irq_event(desc)
652  Called unconditionally from handle_level_irq() and only for oneshot* interrupts from handle_fasteoi_irq()
654  out_unlock :
655  raw_spin_unlock( & lock)