From 843aef4930b9953c9ca624a990b201440304b56f Mon Sep 17 00:00:00 2001 From: David Daney Date: Thu, 11 Dec 2008 15:33:36 -0800 Subject: MIPS: Adjust the dma-common.c platform hooks. We add a dev parameter to plat_unmap_dma_mem(), and hooks for plat_dma_supported() and plat_extra_sync_for_device() which should be nop changes for all existing targets. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/include/asm/mach-generic/dma-coherence.h | 26 +++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'arch/mips/include/asm/mach-generic') diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h index 76e04e7feb8..36c611b6c59 100644 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h +++ b/arch/mips/include/asm/mach-generic/dma-coherence.h @@ -28,10 +28,34 @@ static inline unsigned long plat_dma_addr_to_phys(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) { } +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 void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { #ifdef CONFIG_DMA_COHERENT -- cgit v1.2.3