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authorJoerg Roedel <joerg.roedel@amd.com>2008-09-11 16:51:41 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-19 12:59:15 +0200
commita80dc3e0e0dc8393158de317d66ae0f345dc58f9 (patch)
treed7e18a5d25a6dc1101fe699966a9b59b9b88a2f2 /arch/x86/kernel/amd_iommu.c
parent3eaf28a1cd2686aaa185b54d5a5e18e91b41f7f2 (diff)
AMD IOMMU: add MSI interrupt support
The AMD IOMMU can generate interrupts for various reasons. This patch adds the basic interrupt enabling infrastructure to the driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
-rw-r--r--arch/x86/kernel/amd_iommu.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 15792ed082e..0e494b9d5f2 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -51,6 +51,17 @@ static int iommu_has_npcache(struct amd_iommu *iommu)
/****************************************************************************
*
+ * Interrupt handling functions
+ *
+ ****************************************************************************/
+
+irqreturn_t amd_iommu_int_handler(int irq, void *data)
+{
+ return IRQ_NONE;
+}
+
+/****************************************************************************
+ *
* IOMMU command queuing functions
*
****************************************************************************/