Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
authored by
Marc Zyngier
and committed by
Thomas Gleixner
de575de8
68905ea6
+31
-3
+31
-3
drivers/irqchip/irq-apple-aic.c
+31
-3
drivers/irqchip/irq-apple-aic.c
···
651
651
return 0;
652
652
}
653
653
654
+
static int aic_irq_get_fwspec_info(struct irq_fwspec *fwspec, struct irq_fwspec_info *info)
655
+
{
656
+
const struct cpumask *mask;
657
+
u32 intid;
658
+
659
+
info->flags = 0;
660
+
info->affinity = NULL;
661
+
662
+
if (fwspec->param[0] != AIC_FIQ)
663
+
return 0;
664
+
665
+
if (fwspec->param_count == 3)
666
+
intid = fwspec->param[1];
667
+
else
668
+
intid = fwspec->param[2];
669
+
670
+
if (aic_irqc->fiq_aff[intid])
671
+
mask = &aic_irqc->fiq_aff[intid]->aff;
672
+
else
673
+
mask = cpu_possible_mask;
674
+
675
+
info->affinity = mask;
676
+
info->flags = IRQ_FWSPEC_INFO_AFFINITY_VALID;
677
+
678
+
return 0;
679
+
}
680
+
654
681
static int aic_irq_domain_translate(struct irq_domain *id,
655
682
struct irq_fwspec *fwspec,
656
683
unsigned long *hwirq,
···
777
750
}
778
751
779
752
static const struct irq_domain_ops aic_irq_domain_ops = {
780
-
.translate = aic_irq_domain_translate,
781
-
.alloc = aic_irq_domain_alloc,
782
-
.free = aic_irq_domain_free,
753
+
.translate = aic_irq_domain_translate,
754
+
.alloc = aic_irq_domain_alloc,
755
+
.free = aic_irq_domain_free,
756
+
.get_fwspec_info = aic_irq_get_fwspec_info,
783
757
};
784
758
785
759
/*