1 files changed, 27 insertions, 0 deletions

diff --git a/arch/sh/include/asm/scatterlist.h b/arch/sh/include/asm/scatterlist.h
new file mode 100644
index 00000000000..2084d037369
--- /dev/null
+++ b/arch/sh/include/asm/scatterlist.h
@@ -0,0 +1,27 @@
+#ifndef __ASM_SH_SCATTERLIST_H
+#define __ASM_SH_SCATTERLIST_H
+
+#include <asm/types.h>
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+    unsigned long sg_magic;
+#endif
+    unsigned long page_link;
+    unsigned int offset;/* for highmem, page offset */
+    dma_addr_t dma_address;
+    unsigned int length;
+};
+
+#define ISA_DMA_THRESHOLD       PHYS_ADDR_MASK
+
+/* These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns, or alternatively stop on the first sg_dma_len(sg) which
+ * is 0.
+ */
+#define sg_dma_address(sg)      ((sg)->dma_address)
+#define sg_dma_len(sg)          ((sg)->length)
+
+#endif /* !(__ASM_SH_SCATTERLIST_H) */