函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\chip.c Create Date:2022-07-27 11:11:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：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

函数原型：void handle_level_irq(struct irq_desc *desc)

返回类型：void

参数：

类型参数名称
struct irq_desc *desc
632  raw_spin_lock( & 自旋锁)
633  mask_ack_irq(desc)
635  如果非irq_may_run(desc)则转到:out_unlock
638  istate与等于IRQS_REPLAY按位或IRQS_WAITING的值的反
644  如果此条件成立可能性小(为编译器优化)(!中断服务例程链表 || irqd_irq_disabled( & irq_data))则
645  istate或等于IRQS_PENDING
646  转到: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( & 自旋锁)