2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2003 - 2005 Tensilica Inc.
7 * Copyright (C) 2015 Cadence Design Systems Inc.
10 #ifndef _XTENSA_DMA_MAPPING_H
11 #define _XTENSA_DMA_MAPPING_H
13 #include <asm/cache.h>
16 #include <asm-generic/dma-coherent.h>
19 #include <linux/scatterlist.h>
21 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
23 extern struct dma_map_ops xtensa_dma_map_ops;
25 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
27 if (dev && dev->archdata.dma_ops)
28 return dev->archdata.dma_ops;
30 return &xtensa_dma_map_ops;
33 #include <asm-generic/dma-mapping-common.h>
36 dma_set_mask(struct device *dev, u64 mask)
38 if(!dev->dma_mask || !dma_supported(dev, mask))
41 *dev->dma_mask = mask;
46 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
47 enum dma_data_direction direction);
49 #endif /* _XTENSA_DMA_MAPPING_H */