From: Greg Ungerer <gerg@snapgear.com>
Date: Tue, 13 Sep 2005 01:14:08 +0000 (+1000)
Subject: [PATCH] m68knommu: implement scatter/gather support macros
X-Git-Tag: v2.6.14-rc1~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7cf27cb4162bd586c015e32383f30bc7fbb3ff8a;p=platform%2Fkernel%2Flinux-exynos.git

[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
--- 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) */