superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

irqchip/loongson-eiointc: Set CPU affinity only on SMP machines for LoongArch 

According to the code comment of "struct irq_chip", the member
"irq_set_affinity" is to set the CPU affinity on SMP machines, so define
and call eiointc_set_irq_affinity() only under CONFIG_SMP.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240326121130.16622-4-yangtiezhu@loongson.cn
pull/869/head
Tiezhu Yang 2024-03-26 20:11:30 +08:00 committed by Thomas Gleixner
parent b327708798
commit a64003da0e
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/irqchip/irq-loongson-eiointc.c
View File

@ -59,6 +59,7 @@ static int cpu_to_eio_node(int cpu)
return cpu_logical_map(cpu) / CORES_PER_EIO_NODE;
}
#ifdef CONFIG_SMP
static void eiointc_set_irq_route(int pos, unsigned int cpu, unsigned int mnode, nodemask_t *node_map)
{
int i, node, cpu_node, route_node;
@ -126,6 +127,7 @@ static int eiointc_set_irq_affinity(struct irq_data *d, const struct cpumask *af
return IRQ_SET_MASK_OK;
}
#endif
static int eiointc_index(int node)
{
@ -238,7 +240,9 @@ static struct irq_chip eiointc_irq_chip = {
.irq_ack = eiointc_ack_irq,
.irq_mask = eiointc_mask_irq,
.irq_unmask = eiointc_unmask_irq,
#ifdef CONFIG_SMP
.irq_set_affinity = eiointc_set_irq_affinity,
#endif
};
static int eiointc_domain_alloc(struct irq_domain *domain, unsigned int virq,