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| author | Roman Zippel <zippel@linux-m68k.org> | 2006-06-25 05:46:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:00:56 -0700 |
| commit | b035c96b2da7258bb2bba31812b5f9dda3499f00 (patch) | |
| tree | 46c6b4d3ca2351392d12658342e352cb8df0beb3 /include | |
| parent | 3921ee21e01ac5faecda640daa6071dc8f0e29c9 (diff) | |
| download | lwn-b035c96b2da7258bb2bba31812b5f9dda3499f00.tar.gz lwn-b035c96b2da7258bb2bba31812b5f9dda3499f00.zip | |
[PATCH] m68k: Add the generic dma API functions
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-m68k/dma-mapping.h | 62 | ||||
| -rw-r--r-- | include/asm-m68k/scatterlist.h | 9 |
2 files changed, 61 insertions, 10 deletions
diff --git a/include/asm-m68k/dma-mapping.h b/include/asm-m68k/dma-mapping.h index dffd59cf1364..4f8575edd81d 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 <asm-generic/dma-mapping.h> -#else -#include <asm-generic/dma-mapping-broken.h> -#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 d7c9b5c5e6c7..8e612266da51 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) */ |