7c72e0d557
dma-noop is the only dma_mapping_ops instance for m32r and does not return errors. Signed-off-by: Christoph Hellwig <hch@lst.de>
29 lines
657 B
C
29 lines
657 B
C
#ifndef _ASM_M32R_DMA_MAPPING_H
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#define _ASM_M32R_DMA_MAPPING_H
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/scatterlist.h>
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#include <linux/dma-debug.h>
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#include <linux/io.h>
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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return &dma_noop_ops;
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}
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static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
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enum dma_data_direction direction)
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{
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}
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static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
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{
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if (!dev->dma_mask)
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return false;
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return addr + size - 1 <= *dev->dma_mask;
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}
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#endif /* _ASM_M32R_DMA_MAPPING_H */
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