| /* |
| * OpenRISC Linux |
| * |
| * Linux architectural port borrowing liberally from similar works of |
| * others. All original copyrights apply as per the original source |
| * declaration. |
| * |
| * OpenRISC implementation: |
| * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #ifndef __ASM_OPENRISC_DMA_MAPPING_H |
| #define __ASM_OPENRISC_DMA_MAPPING_H |
| |
| /* |
| * See Documentation/DMA-API-HOWTO.txt and |
| * Documentation/DMA-API.txt for documentation. |
| */ |
| |
| #include <linux/dma-debug.h> |
| #include <linux/kmemcheck.h> |
| #include <linux/dma-mapping.h> |
| |
| #define DMA_ERROR_CODE (~(dma_addr_t)0x0) |
| |
| extern struct dma_map_ops or1k_dma_map_ops; |
| |
| static inline struct dma_map_ops *get_dma_ops(struct device *dev) |
| { |
| return &or1k_dma_map_ops; |
| } |
| |
| #define HAVE_ARCH_DMA_SUPPORTED 1 |
| static inline int dma_supported(struct device *dev, u64 dma_mask) |
| { |
| /* Support 32 bit DMA mask exclusively */ |
| return dma_mask == DMA_BIT_MASK(32); |
| } |
| |
| #endif /* __ASM_OPENRISC_DMA_MAPPING_H */ |
