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Subject[PATCH 26/28] iommu/irq: Use amd_iommu_irq_ops if supported
Date
Finally enable interrupt remapping for AMD systems.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
drivers/iommu/irq_remapping.c | 5 +++++
drivers/iommu/irq_remapping.h | 1 +
2 files changed, 6 insertions(+)

diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 7a880c3..e2c06c1 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -47,6 +47,11 @@ early_param("intremap", setup_irqremap);
void __init setup_irq_remapping_ops(void)
{
remap_ops = &intel_irq_remap_ops;
+
+#ifdef CONFIG_AMD_IOMMU
+ if (amd_iommu_irq_ops.prepare() == 0)
+ remap_ops = &amd_iommu_irq_ops;
+#endif
}

int irq_remapping_supported(void)
diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index b3f70c9..915a247 100644
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -84,6 +84,7 @@ struct irq_remap_ops {
};

extern struct irq_remap_ops intel_irq_remap_ops;
+extern struct irq_remap_ops amd_iommu_irq_ops;

#else /* CONFIG_IRQ_REMAP */

--
1.7.9.5



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