2 * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
3 * Copyright (C) 2009 Broadcom Corporation
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #ifndef __ASM_MACH_BMIPS_DMA_COHERENCE_H
16 #define __ASM_MACH_BMIPS_DMA_COHERENCE_H
20 extern dma_addr_t
plat_map_dma_mem(struct device
*dev
, void *addr
, size_t size
);
21 extern dma_addr_t
plat_map_dma_mem_page(struct device
*dev
, struct page
*page
);
22 extern unsigned long plat_dma_addr_to_phys(struct device
*dev
,
25 static inline void plat_unmap_dma_mem(struct device
*dev
, dma_addr_t dma_addr
,
26 size_t size
, enum dma_data_direction direction
)
30 static inline int plat_dma_supported(struct device
*dev
, u64 mask
)
33 * we fall back to GFP_DMA when the mask isn't all 1s,
34 * so we can't guarantee allocations that must be
35 * within a tighter range than GFP_DMA..
37 if (mask
< DMA_BIT_MASK(24))
43 static inline int plat_device_is_coherent(struct device
*dev
)
48 #endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */