| /* |
| * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation, version 2. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| * NON INFRINGEMENT. See the GNU General Public License for |
| * more details. |
| */ |
| |
| #ifndef _ASM_TILE_DMA_MAPPING_H |
| #define _ASM_TILE_DMA_MAPPING_H |
| |
| #include <linux/mm.h> |
| #include <linux/scatterlist.h> |
| #include <linux/cache.h> |
| #include <linux/io.h> |
| |
| #ifdef __tilegx__ |
| #define ARCH_HAS_DMA_GET_REQUIRED_MASK |
| #endif |
| |
| extern const struct dma_map_ops *tile_dma_map_ops; |
| extern const struct dma_map_ops *gx_pci_dma_map_ops; |
| extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops; |
| extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; |
| |
| static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| { |
| return tile_dma_map_ops; |
| } |
| |
| static inline dma_addr_t get_dma_offset(struct device *dev) |
| { |
| return dev->archdata.dma_offset; |
| } |
| |
| static inline void set_dma_offset(struct device *dev, dma_addr_t off) |
| { |
| dev->archdata.dma_offset = off; |
| } |
| |
| #define HAVE_ARCH_DMA_SET_MASK 1 |
| int dma_set_mask(struct device *dev, u64 mask); |
| |
| #endif /* _ASM_TILE_DMA_MAPPING_H */ |
