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From 04491155db32bc1a9c0b367a7cac0f4a9ea9c4d2 Mon Sep 17 00:00:00 2001
From: Alison Wang <b18965@freescale.com>
Date: Thu, 4 Aug 2011 09:59:43 +0800
Subject: [PATCH 17/52] Add cpu dma sync function for coldfire platform
This patch add dma_sync_sg_for_cpu() and dma_sync_single_for_cpu()
for coldfire platform. The previous empty function do not flush the
cache for the ram used for DMA.
Signed-off-by: Alison Wang <b18965@freescale.com>
---
arch/m68k/include/asm/dma-mapping.h | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -21,6 +21,9 @@ extern void *dma_alloc_coherent(struct d
extern void dma_free_coherent(struct device *, size_t,
void *, dma_addr_t);
+extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
+ enum dma_data_direction);
+
static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *handle, gfp_t flag)
{
@@ -42,6 +45,7 @@ extern dma_addr_t dma_map_single(struct
static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir)
{
+ dma_sync_single_for_device(dev, addr, size, dir);
}
extern dma_addr_t dma_map_page(struct device *, struct page *,
@@ -50,6 +54,7 @@ extern dma_addr_t dma_map_page(struct de
static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
size_t size, enum dma_data_direction dir)
{
+ dma_sync_single_for_device(dev, address, size, dir);
}
extern int dma_map_sg(struct device *, struct scatterlist *, int,
@@ -57,10 +62,9 @@ extern int dma_map_sg(struct device *, s
static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries, enum dma_data_direction dir)
{
+ dma_map_sg(dev, sg, nhwentries, dir);
}
-extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
- enum dma_data_direction);
extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
enum dma_data_direction);
@@ -75,11 +79,13 @@ static inline void dma_sync_single_range
static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
+ dma_sync_single_for_device(dev, handle, size, dir);
}
static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
+ dma_sync_sg_for_device(dev, sg, nents, dir);
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
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