Function report |
Source Code:kernel\irq\chip.c |
Create Date:2022-07-28 10:11:24 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:handle_untracked_irq - Simple and software-decoded IRQs.*@desc: the interrupt description structure for this irq* Untracked interrupts are sent from a demultiplexing interrupt* handler when the demultiplexer does not know which device it its
Proto:void handle_untracked_irq(struct irq_desc *desc)
Type:void
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct irq_desc * | desc |
| 575 | flags = 0 |
| 577 | raw_spin_lock( & lock) |
| 579 | If Not irq_may_run(desc) Then Go to out_unlock |
| 582 | istate &= ~(IRQS_REPLAY | IRQS_WAITING) |
| 584 | If Value for the false possibility is greater at compile time(! IRQ action list || irqd_irq_disabled( & irq_data)) Then |
| 585 | istate |= IRQS_PENDING |
| 586 | Go to out_unlock |
| 589 | istate &= ~IRQS_PENDING |
| 590 | irqd_set( & irq_data, IRQD_IRQ_INPROGRESS) |
| 591 | raw_spin_unlock( & lock) |
| 593 | __handle_irq_event_percpu(desc, & flags) |
| 595 | raw_spin_lock( & lock) |
| 596 | irqd_clear( & irq_data, IRQD_IRQ_INPROGRESS) |
| 598 | out_unlock : |
| 599 | raw_spin_unlock( & lock) |
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