| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 2006, 07 Ralf Baechle <ralf@linux-mips.org> |
| * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology |
| * Author: Fuxin Zhang, zhangfx@lemote.com |
| * |
| */ |
| #ifndef __ASM_MACH_LEMOTE_DMA_COHERENCE_H |
| #define __ASM_MACH_LEMOTE_DMA_COHERENCE_H |
| |
| struct device; |
| |
| static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, |
| size_t size) |
| { |
| return virt_to_phys(addr) | 0x80000000; |
| } |
| |
| static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, |
| struct page *page) |
| { |
| return page_to_phys(page) | 0x80000000; |
| } |
| |
| static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) |
| { |
| return dma_addr & 0x7fffffff; |
| } |
| |
| static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) |
| { |
| } |
| |
| static inline int plat_device_is_coherent(struct device *dev) |
| { |
| return 0; |
| } |
| |
| #endif /* __ASM_MACH_LEMOTE_DMA_COHERENCE_H */ |
