函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\i8259.c Create Date:2022-07-27 08:40:21
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:unmask_8259A_irq

函数原型:static void unmask_8259A_irq(unsigned int irq)

返回类型:void

参数:

类型参数名称
unsigned intirq
79  mask等于1左移irq位的值的反
82  raw_spin_lock_irqsave( & i8259A_lock, flags)
83  This contains the irq mask for both 8259A irq controllers,与等于mask
84  如果irq按位与8则Basic port I/O
86  否则Basic port I/O
88  raw_spin_unlock_irqrestore( & i8259A_lock, flags)
调用者
名称描述
enable_8259A_irq