Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\ipi.c Create Date:2022-07-28 10:15:38
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:__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

Proto:int __ipi_send_single(struct irq_desc *desc, unsigned int cpu)

Type:int

Parameter:

TypeParameterName
struct irq_desc *desc
unsigned intcpu
223  data = irq_desc_get_irq_data(desc)
224  chip = irq_data_get_irq_chip(data)
235  If Not ipi_send_single Then
236  ipi_send_mask(data, cpumask_of - the cpumask containing just a given cpu*@cpu: the cpu (<= nr_cpu_ids)(cpu))
237  Return 0
241  If irq_domain_is_ipi_per_cpu(domain) && cpu != ipi_offset Then
244  irq = irq + cpu - ipi_offset
246  data = irq_get_irq_data(irq)
248  ipi_send_single(data, cpu)
249  Return 0
Caller
NameDescribe
ipi_send_singlepi_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.