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) 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
11 #ifndef __ASM_MACH_LEMOTE_DMA_COHERENCE_H
12 #define __ASM_MACH_LEMOTE_DMA_COHERENCE_H
16 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
19 return virt_to_phys(addr) | 0x80000000;
22 static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
25 return page_to_phys(page) | 0x80000000;
28 static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
30 return dma_addr & 0x7fffffff;
33 static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
37 static inline int plat_dma_supported(struct device *dev, u64 mask)
40 * we fall back to GFP_DMA when the mask isn't all 1s,
41 * so we can't guarantee allocations that must be
42 * within a tighter range than GFP_DMA..
44 if (mask < DMA_BIT_MASK(24))
50 static inline void plat_extra_sync_for_device(struct device *dev)
55 static inline int plat_dma_mapping_error(struct device *dev,
61 static inline int plat_device_is_coherent(struct device *dev)
66 #endif /* __ASM_MACH_LEMOTE_DMA_COHERENCE_H */