From 04491155db32bc1a9c0b367a7cac0f4a9ea9c4d2 Mon Sep 17 00:00:00 2001 From: Alison Wang 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 --- 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,