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iommu/amd: Implement select() method on remapping irqdomain
Preparatory change to remove irq_remapping_get_irq_domain(). Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201024213535.443185-25-dwmw2@infradead.org
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@ -3882,7 +3882,26 @@ static void irq_remapping_deactivate(struct irq_domain *domain,
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irte_info->index);
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irte_info->index);
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}
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}
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static int irq_remapping_select(struct irq_domain *d, struct irq_fwspec *fwspec,
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enum irq_domain_bus_token bus_token)
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{
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struct amd_iommu *iommu;
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int devid = -1;
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if (x86_fwspec_is_ioapic(fwspec))
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devid = get_ioapic_devid(fwspec->param[0]);
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else if (x86_fwspec_is_hpet(fwspec))
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devid = get_hpet_devid(fwspec->param[0]);
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if (devid < 0)
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return 0;
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iommu = amd_iommu_rlookup_table[devid];
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return iommu && iommu->ir_domain == d;
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}
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static const struct irq_domain_ops amd_ir_domain_ops = {
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static const struct irq_domain_ops amd_ir_domain_ops = {
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.select = irq_remapping_select,
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.alloc = irq_remapping_alloc,
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.alloc = irq_remapping_alloc,
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.free = irq_remapping_free,
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.free = irq_remapping_free,
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.activate = irq_remapping_activate,
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.activate = irq_remapping_activate,
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