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LoongArch: Define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE

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Currently we call irq_set_noprobe() in a loop for all IRQs, but indeed
it only works for IRQs below NR_IRQS_LEGACY because at init_IRQ() only
legacy interrupts have been allocated.

Instead, we can define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE in asm/hwirq.h
and the core will automatically set the flag for all interrupts.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
This commit is contained in:
Huacai Chen
2024-08-26 23:11:32 +08:00
parent 58aec91efb
commit 274ea3563e
2 changed files with 2 additions and 3 deletions
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2
arch/loongarch/include/asm/hw_irq.h
View File

@@ -9,6 +9,8 @@
extern atomic_t irq_err_count;
#define ARCH_IRQ_INIT_FLAGS IRQ_NOPROBE
/*
* interrupt-retrigger: NOP for now. This may not be appropriate for all
* machines, we'll see ...

3
arch/loongarch/kernel/irq.c
View File

@@ -102,9 +102,6 @@ void __init init_IRQ(void)
mp_ops.init_ipi();
#endif
for (i = 0; i < NR_IRQS; i++)
irq_set_noprobe(i);
for_each_possible_cpu(i) {
page = alloc_pages_node(cpu_to_node(i), GFP_KERNEL, order);