diff options
| author | David S. Miller <davem@davemloft.net> | 2008-08-27 18:01:36 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-29 02:13:14 -0700 |
| commit | 944c67dff7a88f0a775e5b604937f9e30d2de555 (patch) | |
| tree | 38566c48f3f002c3f1f9d77da3d8b12543bee1c7 /arch/sparc/include | |
| parent | 260489fa8a9735c76073ace95f03ffaf10cca884 (diff) | |
sparc32: Implement more generic dma_*() interfaces.
These dispatch to either PCI or SBUS routines based upon
the device bus type.
This will allow us to let SBUS drivers call these routines.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/dma-mapping_32.h | 59 |
1 files changed, 54 insertions, 5 deletions
diff --git a/arch/sparc/include/asm/dma-mapping_32.h b/arch/sparc/include/asm/dma-mapping_32.h index f3a641e6b2c..8a57ea0573e 100644 --- a/arch/sparc/include/asm/dma-mapping_32.h +++ b/arch/sparc/include/asm/dma-mapping_32.h @@ -1,11 +1,60 @@ #ifndef _ASM_SPARC_DMA_MAPPING_H #define _ASM_SPARC_DMA_MAPPING_H +#include <linux/types.h> -#ifdef CONFIG_PCI -#include <asm-generic/dma-mapping.h> -#else -#include <asm-generic/dma-mapping-broken.h> -#endif /* PCI */ +struct device; +struct scatterlist; +struct page; + +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +extern int dma_supported(struct device *dev, u64 mask); +extern int dma_set_mask(struct device *dev, u64 dma_mask); +extern void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); +extern void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle); +extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction); +extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction); +extern dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction); +extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, enum dma_data_direction direction); +extern int dma_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction); +extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction); +extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction); +extern void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction); +extern void dma_sync_single_range_for_cpu(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, + size_t size, + enum dma_data_direction direction); +extern void dma_sync_single_range_for_device(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, size_t size, + enum dma_data_direction direction); +extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction direction); +extern void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction); +extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr); +extern int dma_get_cache_alignment(void); + +#define dma_alloc_noncoherent dma_alloc_coherent +#define dma_free_noncoherent dma_free_coherent #endif /* _ASM_SPARC_DMA_MAPPING_H */ |