From b035c96b2da7258bb2bba31812b5f9dda3499f00 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Sun, 25 Jun 2006 05:46:56 -0700 Subject: [PATCH] m68k: Add the generic dma API functions Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-m68k/dma-mapping.h | 62 ++++++++++++++++++++++++++++++++++++++---- include/asm-m68k/scatterlist.h | 9 +++--- 2 files changed, 61 insertions(+), 10 deletions(-) (limited to 'include/asm-m68k') diff --git a/include/asm-m68k/dma-mapping.h b/include/asm-m68k/dma-mapping.h index dffd59c..4f8575e 100644 --- a/include/asm-m68k/dma-mapping.h +++ b/include/asm-m68k/dma-mapping.h @@ -1,11 +1,63 @@ #ifndef _M68K_DMA_MAPPING_H #define _M68K_DMA_MAPPING_H +struct scatterlist; -#ifdef CONFIG_PCI -#include -#else -#include -#endif +static inline int dma_supported(struct device *dev, u64 mask) +{ + return 1; +} + +static inline int dma_set_mask(struct device *dev, u64 mask) +{ + return 0; +} + +extern void *dma_alloc_coherent(struct device *, size_t, + dma_addr_t *, int); +extern void dma_free_coherent(struct device *, size_t, + void *, dma_addr_t); + +extern dma_addr_t dma_map_single(struct device *, void *, size_t, + enum dma_data_direction); +static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, + size_t size, enum dma_data_direction dir) +{ +} + +extern dma_addr_t dma_map_page(struct device *, struct page *, + unsigned long, size_t size, + enum dma_data_direction); +static inline void dma_unmap_page(struct device *dev, dma_addr_t address, + size_t size, enum dma_data_direction dir) +{ +} + +extern int dma_map_sg(struct device *, struct scatterlist *, int, + enum dma_data_direction); +static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nhwentries, enum dma_data_direction 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); + +static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ +} + +static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction dir) +{ +} + +static inline int dma_mapping_error(dma_addr_t handle) +{ + return 0; +} #endif /* _M68K_DMA_MAPPING_H */ diff --git a/include/asm-m68k/scatterlist.h b/include/asm-m68k/scatterlist.h index d7c9b5c..8e61226 100644 --- a/include/asm-m68k/scatterlist.h +++ b/include/asm-m68k/scatterlist.h @@ -2,18 +2,17 @@ #define _M68K_SCATTERLIST_H struct scatterlist { - /* These two are only valid if ADDRESS member of this - * struct is NULL. - */ struct page *page; unsigned int offset; - unsigned int length; - __u32 dvma_address; /* A place to hang host-specific addresses at. */ + __u32 dma_address; /* A place to hang host-specific addresses at. */ }; /* This is bogus and should go away. */ #define ISA_DMA_THRESHOLD (0x00ffffff) +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + #endif /* !(_M68K_SCATTERLIST_H) */ -- cgit v1.1