函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\handle.c Create Date:2022-07-27 11:08:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__handle_irq_event_percpu

函数原型：irqreturn_t __handle_irq_event_percpu(struct irq_desc *desc, unsigned int *flags)

返回类型：irqreturn_t

参数：

类型参数名称
struct irq_desc *desc
unsigned int *flags
139  retval等于IRQ_NONE
140  irq等于中断号
143  record_irq_time(desc)
148  q_handler_entry - called immediately before the irq action handler*@irq: irq number*@action: pointer to struct irqaction* The struct irqaction pointed to by @action contains various* information about the handler, including the device name,
149  res等于中断处理函数(irq, 设备标识)
150  q_handler_exit - called immediately after the irq action handler returns*@irq: irq number*@action: pointer to struct irqaction*@ret: return value* If the @ret value is set to IRQ_HANDLED, then we know that the corresponding
152  如果WARN_ONCE(!已禁止中断(), "irq %u handler %pS enabled interrupts\n", irq, 中断处理函数)则禁止中断()
157  当:res恒等于唤醒中断
162  如果此条件成立可能性小(为编译器优化)(!线程中断处理器)则
163  warn_no_thread(irq, action)
164  退出
167  __irq_wake_thread(desc, action)
170  当:res恒等于中断被处理
171  flags或等于中断动作标志
172  退出
174  默认
175  退出
178  retval或等于res
181  返回:retval
调用者
名称描述
handle_irq_event_percpu
handle_untracked_irqhandle_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