diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
| commit | 54c66f6d781e03dc0b23956234963c4911e6d1c0 (patch) | |
| tree | 40619a66ae6d8703a57bf681d087ffeabbffd346 /include/linux/dma-mapping.h | |
| parent | 8ce0a7df6e6117d8814e976d4b7ce6a6b2c9cf93 (diff) | |
| parent | 17e0e27020d028a790d97699aff85a43af5be472 (diff) | |
Merge branch 'master' into 85xx
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index ff203c465fe..9a663c6db16 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -66,6 +66,33 @@ dma_mark_declared_memory_occupied(struct device *dev, } #endif -#endif +/* + * Managed DMA API + */ +extern void *dmam_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp); +extern void dmam_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle); +extern void *dmam_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp); +extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle); +#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY +extern int dmam_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, + dma_addr_t device_addr, size_t size, + int flags); +extern void dmam_release_declared_memory(struct device *dev); +#else /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */ +static inline int dmam_declare_coherent_memory(struct device *dev, + dma_addr_t bus_addr, dma_addr_t device_addr, + size_t size, gfp_t gfp) +{ + return 0; +} +static inline void dmam_release_declared_memory(struct device *dev) +{ +} +#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */ +#endif |