iommu/irq: Use amd_iommu_irq_ops if supported

Finally enable interrupt remapping for AMD systems.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 151690db692c..faf85d6e33fe 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -51,6 +51,11 @@ 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)