Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\apic\io_apic.c Create Date:2022-07-28 08:29:16
Last Modify:2020-03-16 21:24:45 Copyright©Brick
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Name:Initialize all legacy IRQs and all pins on the first IOAPIC* if we have legacy interrupt controller. Kernel boot option "pirq="* may rely on non-legacy pins on the first IOAPIC.

Proto:static inline int mp_init_irq_at_boot(int ioapic, int irq)

Type:int

Parameter:

TypeParameterName
intioapic
intirq
164  If Not nr_legacy_irqs() Then Return 0
167  Return ioapic == 0 || mp_is_legacy_irq(irq)