diff options
Diffstat (limited to 'arch/powerpc/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index cb448d68452c..3d9e887c3c0c 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -15,9 +15,18 @@ #include <linux/scatterlist.h> #include <linux/dma-attrs.h> #include <asm/io.h> +#include <asm/swiotlb.h> #define DMA_ERROR_CODE (~(dma_addr_t)0x0) +/* Some dma direct funcs must be visible for use in other dma_ops */ +extern void *dma_direct_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); +extern void dma_direct_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle); + +extern unsigned long get_dma_direct_offset(struct device *dev); + #ifdef CONFIG_NOT_COHERENT_CACHE /* * DMA-consistent mapping functions for PowerPCs that don't support @@ -78,6 +87,8 @@ struct dma_mapping_ops { dma_addr_t dma_address, size_t size, enum dma_data_direction direction, struct dma_attrs *attrs); + int (*addr_needs_map)(struct device *dev, dma_addr_t addr, + size_t size); #ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS void (*sync_single_range_for_cpu)(struct device *hwdev, dma_addr_t dma_handle, unsigned long offset, |