diff options
Diffstat (limited to 'arch/mips/include/asm/mach-generic/dma-coherence.h')
| -rw-r--r-- | arch/mips/include/asm/mach-generic/dma-coherence.h | 38 |
1 files changed, 30 insertions, 8 deletions
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h index 76e04e7feb8..7629c35986f 100644 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h +++ b/arch/mips/include/asm/mach-generic/dma-coherence.h @@ -23,23 +23,45 @@ static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, return page_to_phys(page); } -static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) +static inline unsigned long plat_dma_addr_to_phys(struct device *dev, + dma_addr_t dma_addr) { return dma_addr; } -static inline void plat_unmap_dma_mem(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_device_is_coherent(struct device *dev) +static inline int plat_dma_supported(struct device *dev, u64 mask) { -#ifdef CONFIG_DMA_COHERENT + /* + * 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; -#endif -#ifdef CONFIG_DMA_NONCOHERENT - return 0; -#endif } +static inline int plat_device_is_coherent(struct device *dev) +{ + return coherentio; +} + +#ifdef CONFIG_SWIOTLB +static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + return paddr; +} + +static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) +{ + return daddr; +} +#endif + #endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */ |