| Songmao Tian | 42d226c | 2007-06-06 14:52:38 +0800 | [diff] [blame] | 1 | /* |
| 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 |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2006, 07 Ralf Baechle <ralf@linux-mips.org> |
| 7 | * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology |
| 8 | * Author: Fuxin Zhang, zhangfx@lemote.com |
| 9 | * |
| 10 | */ |
| 11 | #ifndef __ASM_MACH_LEMOTE_DMA_COHERENCE_H |
| 12 | #define __ASM_MACH_LEMOTE_DMA_COHERENCE_H |
| 13 | |
| 14 | struct device; |
| 15 | |
| 16 | static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, |
| 17 | size_t size) |
| 18 | { |
| 19 | return virt_to_phys(addr) | 0x80000000; |
| 20 | } |
| 21 | |
| 22 | static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, |
| 23 | struct page *page) |
| 24 | { |
| 25 | return page_to_phys(page) | 0x80000000; |
| 26 | } |
| 27 | |
| 28 | static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) |
| 29 | { |
| 30 | return dma_addr & 0x7fffffff; |
| 31 | } |
| 32 | |
| 33 | static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) |
| 34 | { |
| 35 | } |
| 36 | |
| 37 | static inline int plat_device_is_coherent(struct device *dev) |
| 38 | { |
| 39 | return 0; |
| 40 | } |
| 41 | |
| 42 | #endif /* __ASM_MACH_LEMOTE_DMA_COHERENCE_H */ |