diff options
Diffstat (limited to 'arch/mips/include/asm/mach-jazz/dma-coherence.h')
| -rw-r--r-- | arch/mips/include/asm/mach-jazz/dma-coherence.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h index d66979a124a..949003ef97b 100644 --- a/arch/mips/include/asm/mach-jazz/dma-coherence.h +++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h @@ -12,26 +12,42 @@ struct device; -static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) +static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) { return vdma_alloc(virt_to_phys(addr), size); } -static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page) +static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, + struct page *page) { return vdma_alloc(page_to_phys(page), PAGE_SIZE); } -static 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 vdma_log2phys(dma_addr); } -static 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) { vdma_free(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 int plat_device_is_coherent(struct device *dev) { return 0; |