From 5618369328e3d91bf3fc5a61d36f42b08ba19568 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 5 Jan 2009 23:59:01 +0900
Subject: [PATCH] --- yaml --- r: 138894 b: refs/heads/master c:
 f0402a262e1a4c03fc66b83659823bdcaac3c41a h: refs/heads/master v: v3

---
 [refs]                            |  2 +-
 trunk/include/linux/dma-mapping.h | 48 +++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 802fba6b3704..964be8a1fe71 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d7dff84053524186b139342ac66a4160ce6bb517
+refs/heads/master: f0402a262e1a4c03fc66b83659823bdcaac3c41a
diff --git a/trunk/include/linux/dma-mapping.h b/trunk/include/linux/dma-mapping.h
index ba9114ec5d3a..d7d090d21031 100644
--- a/trunk/include/linux/dma-mapping.h
+++ b/trunk/include/linux/dma-mapping.h
@@ -3,6 +3,8 @@
 
 #include <linux/device.h>
 #include <linux/err.h>
+#include <linux/dma-attrs.h>
+#include <linux/scatterlist.h>
 
 /* These definitions mirror those in pci.h, so they can be used
  * interchangeably with their PCI_ counterparts */
@@ -13,6 +15,52 @@ enum dma_data_direction {
 	DMA_NONE = 3,
 };
 
+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);
+	dma_addr_t (*map_page)(struct device *dev, struct page *page,
+			       unsigned long offset, size_t size,
+			       enum dma_data_direction dir,
+			       struct dma_attrs *attrs);
+	void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
+			   size_t size, enum dma_data_direction dir,
+			   struct dma_attrs *attrs);
+	int (*map_sg)(struct device *dev, struct scatterlist *sg,
+		      int nents, enum dma_data_direction dir,
+		      struct dma_attrs *attrs);
+	void (*unmap_sg)(struct device *dev,
+			 struct scatterlist *sg, int nents,
+			 enum dma_data_direction dir,
+			 struct dma_attrs *attrs);
+	void (*sync_single_for_cpu)(struct device *dev,
+				    dma_addr_t dma_handle, size_t size,
+				    enum dma_data_direction dir);
+	void (*sync_single_for_device)(struct device *dev,
+				       dma_addr_t dma_handle, size_t size,
+				       enum dma_data_direction dir);
+	void (*sync_single_range_for_cpu)(struct device *dev,
+					  dma_addr_t dma_handle,
+					  unsigned long offset,
+					  size_t size,
+					  enum dma_data_direction dir);
+	void (*sync_single_range_for_device)(struct device *dev,
+					     dma_addr_t dma_handle,
+					     unsigned long offset,
+					     size_t size,
+					     enum dma_data_direction dir);
+	void (*sync_sg_for_cpu)(struct device *dev,
+				struct scatterlist *sg, int nents,
+				enum dma_data_direction dir);
+	void (*sync_sg_for_device)(struct device *dev,
+				   struct scatterlist *sg, int nents,
+				   enum dma_data_direction dir);
+	int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
+	int (*dma_supported)(struct device *dev, u64 mask);
+	int is_phys;
+};
+
 #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
 
 /*