iommu/amd: Implement select() method on remapping irqdomain (a1a785b5) · Commits · 戴 / test

Preparatory change to remove irq_remapping_get_irq_domain(). Signed-off-by:

drivers/iommu/amd/iommu.c

+19 −0

Original line number	Diff line number	Diff line
		@@ -3882,7 +3882,26 @@ static void irq_remapping_deactivate(struct irq_domain *domain,
		irte_info->index);
		}

		static int irq_remapping_select(struct irq_domain d, struct irq_fwspec fwspec,
		enum irq_domain_bus_token bus_token)
		{
		struct amd_iommu *iommu;
		int devid = -1;

		if (x86_fwspec_is_ioapic(fwspec))
		devid = get_ioapic_devid(fwspec->param[0]);
		else if (x86_fwspec_is_hpet(fwspec))
		devid = get_hpet_devid(fwspec->param[0]);

		if (devid < 0)
		return 0;

		iommu = amd_iommu_rlookup_table[devid];
		return iommu && iommu->ir_domain == d;
		}

		static const struct irq_domain_ops amd_ir_domain_ops = {
		.select = irq_remapping_select,
		.alloc = irq_remapping_alloc,
		.free = irq_remapping_free,
		.activate = irq_remapping_activate,