ipi_send_single

函数名称：pi_send_single - Send an IPI to a single CPU*@virq: linux irq number from irq_reserve_ipi()*@cpu: destination CPU, must in the destination mask passed to* irq_reserve_ipi()* Returns zero on success and negative error number on failure.

函数原型：int ipi_send_single(unsigned int virq, unsigned int cpu)

返回类型：int

参数：

类型	参数	名称
unsigned int	virq
unsigned int	cpu

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desc等于中断转换为描述

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struct irq_data * data = desc ? irq_desc_get_irq_data(desc) : NULL

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struct irq_chip * chip = data ? irq_data_get_irq_chip(data) : NULL

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如果WARN_ON_ONCE(ipi_send_verify(chip, data, NULL, cpu))则返回:负EINVAL

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返回:__ipi_send_single - send an IPI to a target Linux SMP CPU*@desc: pointer to irq_desc of the IRQ*@cpu: destination CPU, must in the destination mask passed to* irq_reserve_ipi()* This function is for architecture or core code to speed up IPI sending. Not

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