X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Flinux%2Fdma-mapping.h;h=3320307096237a61495d785d751e897bc54a0102;hb=a77df5cd1cde203ef11c8e5a3ca47def5f5a1687;hp=4470950892bed5e9b0f19c4576343baf28f3022e;hpb=93890b71a34f9490673a6edd56b61c2124215e46;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 4470950892b..33203070962 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -60,6 +60,36 @@ static inline int is_device_dma_capable(struct device *dev)
 
 extern u64 dma_get_required_mask(struct device *dev);
 
+static inline unsigned int dma_get_max_seg_size(struct device *dev)
+{
+	return dev->dma_parms ? dev->dma_parms->max_segment_size : 65536;
+}
+
+static inline unsigned int dma_set_max_seg_size(struct device *dev,
+						unsigned int size)
+{
+	if (dev->dma_parms) {
+		dev->dma_parms->max_segment_size = size;
+		return 0;
+	} else
+		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