| /* | |
| * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org> | |
| * Copyright (C) 2009 Broadcom Corporation | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| * | |
| * 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. See the | |
| * GNU General Public License for more details. | |
| */ | |
| #ifndef __ASM_MACH_BMIPS_DMA_COHERENCE_H | |
| #define __ASM_MACH_BMIPS_DMA_COHERENCE_H | |
| #include <asm/bmips.h> | |
| #include <asm/cpu-type.h> | |
| #include <asm/cpu.h> | |
| struct device; | |
| extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size); | |
| extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page); | |
| extern unsigned long plat_dma_addr_to_phys(struct device *dev, | |
| dma_addr_t dma_addr); | |
| static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, | |
| size_t size, enum dma_data_direction direction) | |
| { | |
| } | |
| static inline int plat_dma_supported(struct device *dev, u64 mask) | |
| { | |
| /* | |
| * we fall back to GFP_DMA when the mask isn't all 1s, | |
| * so we can't guarantee allocations that must be | |
| * within a tighter range than GFP_DMA.. | |
| */ | |
| if (mask < DMA_BIT_MASK(24)) | |
| return 0; | |
| return 1; | |
| } | |
| static inline int plat_device_is_coherent(struct device *dev) | |
| { | |
| return 0; | |
| } | |
| #define plat_post_dma_flush bmips_post_dma_flush | |
| #endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */ |