powerpc: Change archdata dma_data to a union

Sometimes this is used to hold a simple offset, and sometimes
it is used to hold a pointer.  This patch changes it to a union containing
void * and dma_addr_t.  get/set accessors are also provided, because it was
getting a bit ugly to get to the actual data.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 1b4f674ad7c4..77f64218abf3 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1235,7 +1235,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
                 vio_cmo_set_dma_ops(viodev);
         else
                 viodev->dev.archdata.dma_ops = &dma_iommu_ops;
-        viodev->dev.archdata.dma_data = vio_build_iommu_table(viodev);
+        set_iommu_table_base(&viodev->dev, vio_build_iommu_table(viodev));
         set_dev_node(&viodev->dev, of_node_to_nid(of_node));
 
         /* init generic 'struct device' fields: */