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944c67dff7
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>
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
#ifndef _ASM_SPARC_DMA_MAPPING_H
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#define _ASM_SPARC_DMA_MAPPING_H
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#include <linux/types.h>
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struct device;
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struct scatterlist;
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struct page;
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#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
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extern int dma_supported(struct device *dev, u64 mask);
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extern int dma_set_mask(struct device *dev, u64 dma_mask);
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extern void *dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag);
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extern void dma_free_coherent(struct device *dev, size_t size,
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void *cpu_addr, dma_addr_t dma_handle);
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extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
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size_t size,
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enum dma_data_direction direction);
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extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
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size_t size,
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enum dma_data_direction direction);
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extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction direction);
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extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
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size_t size, enum dma_data_direction direction);
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extern int dma_map_sg(struct device *dev, struct scatterlist *sg,
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int nents, enum dma_data_direction direction);
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extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
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int nents, enum dma_data_direction direction);
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extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
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size_t size,
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enum dma_data_direction direction);
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extern void dma_sync_single_for_device(struct device *dev,
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dma_addr_t dma_handle,
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size_t size,
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enum dma_data_direction direction);
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extern void dma_sync_single_range_for_cpu(struct device *dev,
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dma_addr_t dma_handle,
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unsigned long offset,
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size_t size,
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enum dma_data_direction direction);
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extern void dma_sync_single_range_for_device(struct device *dev,
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dma_addr_t dma_handle,
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unsigned long offset, size_t size,
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enum dma_data_direction direction);
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extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
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int nelems, enum dma_data_direction direction);
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extern void dma_sync_sg_for_device(struct device *dev,
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struct scatterlist *sg, int nelems,
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enum dma_data_direction direction);
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extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
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extern int dma_get_cache_alignment(void);
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#define dma_alloc_noncoherent dma_alloc_coherent
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#define dma_free_noncoherent dma_free_coherent
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#endif /* _ASM_SPARC_DMA_MAPPING_H */
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