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-rw-r--r--include/asm-mn10300/scatterlist.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-mn10300/scatterlist.h b/include/asm-mn10300/scatterlist.h
index e29d91dbcf2..67535901b9f 100644
--- a/include/asm-mn10300/scatterlist.h
+++ b/include/asm-mn10300/scatterlist.h
@@ -43,4 +43,13 @@ struct scatterlist {
#define ISA_DMA_THRESHOLD (0x00ffffff)
+/*
+ * 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.
+ */
+#define sg_dma_address(sg) ((sg)->dma_address)
+#define sg_dma_len(sg) ((sg)->length)
+
#endif /* _ASM_SCATTERLIST_H */