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author | Ingo Molnar <mingo@kernel.org> | 2015-05-08 13:33:33 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2015-05-08 13:33:33 +0200 |
commit | 7ae383be81781c5e1347f71c3eb0d53ce5188200 (patch) | |
tree | d2dfedb78cf4ee2bc9cc460af3be106b08e01050 /arch/mips/include/asm/mach-bmips/dma-coherence.h | |
parent | 2a4e90b18c256d52a7f3f77d58114f6d4e4a7f9f (diff) | |
parent | 3e0283a53f7d2f2dae7bc4aa7f3104cb5988018f (diff) | |
download | op-kernel-dev-7ae383be81781c5e1347f71c3eb0d53ce5188200.zip op-kernel-dev-7ae383be81781c5e1347f71c3eb0d53ce5188200.tar.gz |
Merge branch 'linus' into x86/asm, before applying dependent patch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/include/asm/mach-bmips/dma-coherence.h')
-rw-r--r-- | arch/mips/include/asm/mach-bmips/dma-coherence.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-bmips/dma-coherence.h b/arch/mips/include/asm/mach-bmips/dma-coherence.h new file mode 100644 index 0000000..d29781f --- /dev/null +++ b/arch/mips/include/asm/mach-bmips/dma-coherence.h @@ -0,0 +1,54 @@ +/* + * 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 */ |