add dma_mapping_ops for intel-iommu

This is for IA64_DIG_VTD.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/ia64/dig/dig_vtd_iommu.c b/arch/ia64/dig/dig_vtd_iommu.c
index 1c8a079017a3..fdb8ba9f4992 100644
--- a/arch/ia64/dig/dig_vtd_iommu.c
+++ b/arch/ia64/dig/dig_vtd_iommu.c
@@ -1,6 +1,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/dma-mapping.h>
 #include <linux/intel-iommu.h>
 
 void *
@@ -57,3 +58,20 @@ vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
         return 0;
 }
 EXPORT_SYMBOL_GPL(vtd_dma_mapping_error);
+
+extern int iommu_dma_supported(struct device *dev, u64 mask);
+
+struct dma_mapping_ops vtd_dma_ops = {
+        .alloc_coherent         = vtd_alloc_coherent,
+        .free_coherent          = vtd_free_coherent,
+        .map_single_attrs       = vtd_map_single_attrs,
+        .unmap_single_attrs     = vtd_unmap_single_attrs,
+        .map_sg_attrs           = vtd_map_sg_attrs,
+        .unmap_sg_attrs         = vtd_unmap_sg_attrs,
+        .sync_single_for_cpu    = machvec_dma_sync_single,
+        .sync_sg_for_cpu        = machvec_dma_sync_sg,
+        .sync_single_for_device = machvec_dma_sync_single,
+        .sync_sg_for_device     = machvec_dma_sync_sg,
+        .dma_supported_op       = iommu_dma_supported,
+        .mapping_error          = vtd_dma_mapping_error,
+};