dma: add dma_*map*_attrs() interfaces

[linux-2.6.git] / include / linux / dma-mapping.h

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index df3a3610caf0fa1dca6c526164eb79bc27778391..952e0f857ac9d9545750bbd5f197df6034a99913 100644 (file)
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -75,6 +75,21 @@ static inline unsigned int dma_set_max_seg_size(struct device *dev,
                return -EIO;
 }
 
+static inline unsigned long dma_get_seg_boundary(struct device *dev)
+{
+       return dev->dma_parms ?
+               dev->dma_parms->segment_boundary_mask : 0xffffffff;
+}
+
+static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
+{
+       if (dev->dma_parms) {
+               dev->dma_parms->segment_boundary_mask = mask;
+               return 0;
+       } else
+               return -EIO;
+}
+
 /* flags for the coherent memory api */
 #define        DMA_MEMORY_MAP                  0x01
 #define DMA_MEMORY_IO                  0x02
@@ -131,4 +146,21 @@ static inline void dmam_release_declared_memory(struct device *dev)
 }
 #endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
 
+#ifndef CONFIG_HAVE_DMA_ATTRS
+struct dma_attrs;
+
+#define dma_map_single_attrs(dev, cpu_addr, size, dir, attrs) \
+       dma_map_single(dev, cpu_addr, size, dir)
+
+#define dma_unmap_single_attrs(dev, dma_addr, size, dir, attrs) \
+       dma_unmap_single(dev, dma_addr, size, dir)
+
+#define dma_map_sg_attrs(dev, sgl, nents, dir, attrs) \
+       dma_map_sg(dev, sgl, nents, dir)
+
+#define dma_unmap_sg_attrs(dev, sgl, nents, dir, attrs) \
+       dma_unmap_sg(dev, sgl, nents, dir)
+
+#endif /* CONFIG_HAVE_DMA_ATTRS */
+
 #endif