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