[PATCH] m68knommu: implement scatter/gather support macros

Implement the scattergather support macros for m68knommu targets.
Patch originally submitted by Leon Woestenberg <leonw@mailcan.com>.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/asm-m68knommu/scatterlist.h b/include/asm-m68knommu/scatterlist.h
index 230b8d5..12309b1 100644 (file)
--- a/include/asm-m68knommu/scatterlist.h
+++ b/include/asm-m68knommu/scatterlist.h
@@ -1,6 +1,8 @@
 #ifndef _M68KNOMMU_SCATTERLIST_H
 #define _M68KNOMMU_SCATTERLIST_H
 
+#include <linux/mm.h>
+
 struct scatterlist {
        struct page     *page;
        unsigned int    offset;
@@ -8,6 +10,10 @@ struct scatterlist {
        unsigned int    length;
 };
 
+#define sg_address(sg) (page_address((sg)->page) + (sg)->offset
+#define sg_dma_address(sg)      ((sg)->dma_address)
+#define sg_dma_len(sg)          ((sg)->length)
+
 #define ISA_DMA_THRESHOLD      (0xffffffff)
 
 #endif /* !(_M68KNOMMU_SCATTERLIST_H) */