[PATCH 6/7] common: dma-mapping: change alloc/free_coherent method to more generic alloc/free_attrs

On Fri, Sep 02, 2011 at 03:53:18PM +0200, Marek Szyprowski wrote:

 struct dma_map_ops {
-	void* (*alloc_coherent)(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t gfp);
-	void (*free_coherent)(struct device *dev, size_t size,
-			      void *vaddr, dma_addr_t dma_handle);
+	void* (*alloc)(struct device *dev, size_t size,
+				dma_addr_t *dma_handle, gfp_t gfp,
+				struct dma_attrs *attrs);
+	void (*free)(struct device *dev, size_t size,
+			      void *vaddr, dma_addr_t dma_handle,
+			      struct dma_attrs *attrs);
+	int (*mmap)(struct device *, struct vm_area_struct *,
+			  void *, dma_addr_t, size_t, struct dma_attrs *attrs);
+
 	dma_addr_t (*map_page)(struct device *dev, struct page *page,
 			       unsigned long offset, size_t size,
 			       enum dma_data_direction dir,
-- 
1.7.1.569.g6f426

This needs conversion of all drivers implementing dma_map_ops or you
will break a lot of architectures. A better approach is to keep
*_coherent and implement alloc/free/mmap side-by-side until all drivers
are converted.
Also I miss some documentation about the new call-backs.

	Joerg