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| author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-02-10 13:45:43 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-02-10 13:45:43 -0600 |
| commit | 81b7bbd1932a04869d4c8635a75222dfc6089f96 (patch) | |
| tree | 285ae868a1e3a41fb0dbfe346c28e380949bcb55 /include/linux/dma-mapping.h | |
| parent | 98051995ab44b993f992946055edc6115351f725 (diff) | |
| parent | 66efc5a7e3061c3597ac43a8bb1026488d57e66b (diff) | |
| download | blackbird-op-linux-81b7bbd1932a04869d4c8635a75222dfc6089f96.tar.gz blackbird-op-linux-81b7bbd1932a04869d4c8635a75222dfc6089f96.zip | |
Merge branch 'linus'
Conflicts:
drivers/scsi/ipr.c
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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 ff203c465fed..9a663c6db16a 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 |
