Function report |
Source Code:arch\x86\kernel\apic\io_apic.c |
Create Date:2022-07-28 08:29:44 |
Last Modify:2020-03-16 21:24:45 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:mp_check_pin_attr
Proto:static bool mp_check_pin_attr(int irq, struct irq_alloc_info *info)
Type:bool
Parameter:
Type | Parameter | Name |
---|---|---|
int | irq | |
struct irq_alloc_info * | info |
941 | data = irq_get_chip_data(irq) |
948 | If irq < nr_legacy_irqs() && count == 1 Then |
949 | If ioapic_trigger != trigger Then mp_register_handler(irq, ioapic_trigger) |
951 | 0: edge, 1: level = trigger = ioapic_trigger |
952 | polarity = polarity = ioapic_polarity |
955 | Return trigger == ioapic_trigger && polarity == ioapic_polarity |
Name | Describe |
---|---|
alloc_isa_irq_from_domain | Need special handling for ISA IRQs because there may be multiple IOAPIC pins* sharing the same ISA IRQ number and irqdomain only supports 1:1 mapping* between IOAPIC pin and IRQ number. A typical IOAPIC has 24 pins, pin 0-15 are |
mp_map_pin_to_irq |
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