powerpc: Update remaining dma_mapping_ops to use map/unmap_page

[pandora-kernel.git] / arch / powerpc / kernel / dma-iommu.c

diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 49248f8..14183af 100644 (file)
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -30,28 +30,26 @@ static void dma_iommu_free_coherent(struct device *dev, size_t size,
 }
 
 /* Creates TCEs for a user provided buffer.  The user buffer must be
- * contiguous real kernel storage (not vmalloc).  The address of the buffer
- * passed here is the kernel (virtual) address of the buffer.  The buffer
- * need not be page aligned, the dma_addr_t returned will point to the same
- * byte within the page as vaddr.
+ * contiguous real kernel storage (not vmalloc).  The address passed here
+ * comprises a page address and offset into that page. The dma_addr_t
+ * returned will point to the same byte within the page as was passed in.
  */
-static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr,
-                                      size_t size,
-                                      enum dma_data_direction direction,
-                                      struct dma_attrs *attrs)
+static dma_addr_t dma_iommu_map_page(struct device *dev, struct page *page,
+                                    unsigned long offset, size_t size,
+                                    enum dma_data_direction direction,
+                                    struct dma_attrs *attrs)
 {
-       return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size,
-                               device_to_mask(dev), direction, attrs);
+       return iommu_map_page(dev, dev->archdata.dma_data, page, offset, size,
+                             device_to_mask(dev), direction, attrs);
 }
 
 
-static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle,
-                                  size_t size,
-                                  enum dma_data_direction direction,
-                                  struct dma_attrs *attrs)
+static void dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
+                                size_t size, enum dma_data_direction direction,
+                                struct dma_attrs *attrs)
 {
-       iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction,
-                          attrs);
+       iommu_unmap_page(dev->archdata.dma_data, dma_handle, size, direction,
+                        attrs);
 }
 
 
@@ -94,10 +92,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
 struct dma_mapping_ops dma_iommu_ops = {
        .alloc_coherent = dma_iommu_alloc_coherent,
        .free_coherent  = dma_iommu_free_coherent,
-       .map_single     = dma_iommu_map_single,
-       .unmap_single   = dma_iommu_unmap_single,
        .map_sg         = dma_iommu_map_sg,
        .unmap_sg       = dma_iommu_unmap_sg,
        .dma_supported  = dma_iommu_dma_supported,
+       .map_page       = dma_iommu_map_page,
+       .unmap_page     = dma_iommu_unmap_page,
 };
 EXPORT_SYMBOL(dma_iommu_ops);