diff options
Diffstat (limited to 'arch/powerpc/kernel/dma_64.c')
-rw-r--r-- | arch/powerpc/kernel/dma_64.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 3a317cb0636..ae5708e3a31 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -15,15 +15,6 @@ * Generic iommu implementation */ -static inline unsigned long device_to_mask(struct device *dev) -{ - if (dev->dma_mask && *dev->dma_mask) - return *dev->dma_mask; - /* Assume devices without mask can take 32 bit addresses */ - return 0xfffffffful; -} - - /* Allocates a contiguous real buffer and creates mappings over it. * Returns the virtual address of the buffer and sets dma_handle * to the dma address (mapping) of the first page. @@ -50,32 +41,38 @@ static void dma_iommu_free_coherent(struct device *dev, size_t size, */ static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size, - device_to_mask(dev), direction); + device_to_mask(dev), direction, attrs); } static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { - iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction); + iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction, + attrs); } static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) + int nelems, enum dma_data_direction direction, + struct dma_attrs *attrs) { - return iommu_map_sg(dev, sglist, nelems, - device_to_mask(dev), direction); + return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems, + device_to_mask(dev), direction, attrs); } static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) + int nelems, enum dma_data_direction direction, + struct dma_attrs *attrs) { - iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction); + iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction, + attrs); } /* We support DMA to/from any memory page via the iommu */ @@ -148,19 +145,22 @@ static void dma_direct_free_coherent(struct device *dev, size_t size, static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr, size_t size, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { return virt_to_abs(ptr) + get_dma_direct_offset(dev); } static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) + enum dma_data_direction direction, + struct dma_attrs *attrs) { } static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction) + int nents, enum dma_data_direction direction, + struct dma_attrs *attrs) { struct scatterlist *sg; int i; @@ -174,7 +174,8 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, } static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) + int nents, enum dma_data_direction direction, + struct dma_attrs *attrs) { } |