diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-10-20 13:29:23 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-10-27 17:16:33 +0100 |
| commit | de575de83c77b693667256774f4d19f33e73f6db (patch) | |
| tree | 55ea9057b90acfa57b4f136e7286abd0743e0c77 | |
| parent | 68905ea65ceff4f42ab14dbc6882de313127646f (diff) | |
| download | linux-de575de83c77b693667256774f4d19f33e73f6db.tar.gz linux-de575de83c77b693667256774f4d19f33e73f6db.zip | |
irqchip/apple-aic: Add FW info retrieval support
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
| -rw-r--r-- | drivers/irqchip/irq-apple-aic.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/irqchip/irq-apple-aic.c b/drivers/irqchip/irq-apple-aic.c index 032d66dceb8e..0b72451725eb 100644 --- a/drivers/irqchip/irq-apple-aic.c +++ b/drivers/irqchip/irq-apple-aic.c @@ -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, }; /* |