| /* |
| * 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 */ |
