diff options
Diffstat (limited to 'include/asm-powerpc/dma-mapping.h')
| -rw-r--r-- | include/asm-powerpc/dma-mapping.h | 51 |
1 files changed, 33 insertions, 18 deletions
diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h index 744d6bb2411..ff52013c0e2 100644 --- a/include/asm-powerpc/dma-mapping.h +++ b/include/asm-powerpc/dma-mapping.h @@ -12,7 +12,7 @@ #include <linux/cache.h> /* need struct page definitions */ #include <linux/mm.h> -#include <asm/scatterlist.h> +#include <linux/scatterlist.h> #include <asm/io.h> #define DMA_ERROR_CODE (~(dma_addr_t)0x0) @@ -249,8 +249,12 @@ dma_map_single(struct device *dev, void *ptr, size_t size, return virt_to_bus(ptr); } -/* We do nothing. */ -#define dma_unmap_single(dev, addr, size, dir) ((void)0) +static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction) +{ + /* We do nothing. */ +} static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, @@ -264,28 +268,37 @@ dma_map_page(struct device *dev, struct page *page, return page_to_bus(page) + offset; } -/* We do nothing. */ -#define dma_unmap_page(dev, handle, size, dir) ((void)0) +static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, + enum dma_data_direction direction) +{ + /* We do nothing. */ +} static inline int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, +dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents, enum dma_data_direction direction) { + struct scatterlist *sg; int i; BUG_ON(direction == DMA_NONE); - for (i = 0; i < nents; i++, sg++) { - BUG_ON(!sg->page); - __dma_sync_page(sg->page, sg->offset, sg->length, direction); - sg->dma_address = page_to_bus(sg->page) + sg->offset; + for_each_sg(sgl, sg, nents, i) { + BUG_ON(!sg_page(sg)); + __dma_sync_page(sg_page(sg), sg->offset, sg->length, direction); + sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset; } return nents; } -/* We don't do anything here. */ -#define dma_unmap_sg(dev, sg, nents, dir) ((void)0) +static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nhwentries, + enum dma_data_direction direction) +{ + /* We don't do anything here. */ +} #endif /* CONFIG_PPC64 */ @@ -306,27 +319,29 @@ static inline void dma_sync_single_for_device(struct device *dev, } static inline void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nents, + struct scatterlist *sgl, int nents, enum dma_data_direction direction) { + struct scatterlist *sg; int i; BUG_ON(direction == DMA_NONE); - for (i = 0; i < nents; i++, sg++) - __dma_sync_page(sg->page, sg->offset, sg->length, direction); + for_each_sg(sgl, sg, nents, i) + __dma_sync_page(sg_page(sg), sg->offset, sg->length, direction); } static inline void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nents, + struct scatterlist *sgl, int nents, enum dma_data_direction direction) { + struct scatterlist *sg; int i; BUG_ON(direction == DMA_NONE); - for (i = 0; i < nents; i++, sg++) - __dma_sync_page(sg->page, sg->offset, sg->length, direction); + for_each_sg(sgl, sg, nents, i) + __dma_sync_page(sg_page(sg), sg->offset, sg->length, direction); } static inline int dma_mapping_error(dma_addr_t dma_addr) |