[PATCH 14/16] iommu/irq: Use amd_iommu_irq_ops if supported

From: Joerg Roedel
Date: Fri Sep 28 2012 - 08:24:14 EST


Finally enable interrupt remapping for AMD systems.

Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
drivers/iommu/irq_remapping.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 151690d..faf85d6 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)
--
1.7.9.5


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