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| author |  Tiezhu Yang <yangtiezhu@loongson.cn>
| 2024-03-26 20:11:30 +0800 |
|---|---|---|
| committer |  Thomas Gleixner <tglx@linutronix.de>
| 2024-04-09 11:03:16 +0200 |
| commit | a64003da0ef8e135cda678eb2c8a6f0baf4a9f35 (patch) | |
| tree | e0410ddbc33756dc71ce2c3c2ca6553b192d3cb6 /drivers/irqchip | |
| parent | irqchip/loongson-pch-msi: Fix off-by-one on allocation error path (diff) | |
| download | linux-a64003da0ef8e135cda678eb2c8a6f0baf4a9f35.tar.gz linux-a64003da0ef8e135cda678eb2c8a6f0baf4a9f35.tar.bz2 linux-a64003da0ef8e135cda678eb2c8a6f0baf4a9f35.zip | |
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
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-eiointc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c index b64cbe3052e8..4f5e6d21d77d 100644 --- a/drivers/irqchip/irq-loongson-eiointc.c +++ b/drivers/irqchip/irq-loongson-eiointc.c @@ -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, |