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iommu/vt-d: Implement select() method on remapping irqdomain

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Preparatory for removing 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/20201024213535.443185-26-dwmw2@infradead.org
This commit is contained in:
David Woodhouse 2020-10-24 22:35:25 +01:00 committed by Thomas Gleixner
parent a1a785b572
commit a87fb465ff
1 changed files with 13 additions and 0 deletions
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13
drivers/iommu/intel/irq_remapping.c
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@ -1431,7 +1431,20 @@ static void intel_irq_remapping_deactivate(struct irq_domain *domain,
modify_irte(&data->irq_2_iommu, &entry);
}
static int intel_irq_remapping_select(struct irq_domain *d,
struct irq_fwspec *fwspec,
enum irq_domain_bus_token bus_token)
{
if (x86_fwspec_is_ioapic(fwspec))
return d == map_ioapic_to_ir(fwspec->param[0]);
else if (x86_fwspec_is_hpet(fwspec))
return d == map_hpet_to_ir(fwspec->param[0]);
return 0;
}
static const struct irq_domain_ops intel_ir_domain_ops = {
.select = intel_irq_remapping_select,
.alloc = intel_irq_remapping_alloc,
.free = intel_irq_remapping_free,
.activate = intel_irq_remapping_activate,