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irqchip/apple-aic: Add FW info retrieval support

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Plug the new .get_fwspec_info() callback into the Apple AIC driver, using
some of the existing FIQ affinity handling infrastructure.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Will Deacon <will@kernel.org>
Acked-by: Sven Peter <sven@kernel.org>
Link: https://patch.msgid.link/20251020122944.3074811-7-maz@kernel.org
This commit is contained in:
Marc Zyngier
2025-10-20 13:29:23 +01:00
committed by Thomas Gleixner
parent 68905ea65c
commit de575de83c
1 changed files with 31 additions and 3 deletions
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34
drivers/irqchip/irq-apple-aic.c
View File

@@ -651,6 +651,33 @@ static int aic_irq_domain_map(struct irq_domain *id, unsigned int irq,
return 0;
}
static int aic_irq_get_fwspec_info(struct irq_fwspec *fwspec, struct irq_fwspec_info *info)
{
const struct cpumask *mask;
u32 intid;
info->flags = 0;
info->affinity = NULL;
if (fwspec->param[0] != AIC_FIQ)
return 0;
if (fwspec->param_count == 3)
intid = fwspec->param[1];
else
intid = fwspec->param[2];
if (aic_irqc->fiq_aff[intid])
mask = &aic_irqc->fiq_aff[intid]->aff;
else
mask = cpu_possible_mask;
info->affinity = mask;
info->flags = IRQ_FWSPEC_INFO_AFFINITY_VALID;
return 0;
}
static int aic_irq_domain_translate(struct irq_domain *id,
struct irq_fwspec *fwspec,
unsigned long *hwirq,
@@ -750,9 +777,10 @@ static void aic_irq_domain_free(struct irq_domain *domain, unsigned int virq,
}
static const struct irq_domain_ops aic_irq_domain_ops = {
.translate = aic_irq_domain_translate,
.alloc = aic_irq_domain_alloc,
.free = aic_irq_domain_free,
.translate = aic_irq_domain_translate,
.alloc = aic_irq_domain_alloc,
.free = aic_irq_domain_free,
.get_fwspec_info = aic_irq_get_fwspec_info,
};
/*