#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)
return -EIO;
if (dma_ops->set_dma_mask != NULL)
return dma_ops->set_dma_mask(dev, dma_mask);
- if (!dev->dma_mask || !dma_supported(dev, *dev->dma_mask))
+ if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
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,
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 */
}
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)