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-rw-r--r--drivers/ieee1394/dma.h22
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/ieee1394/dma.h b/drivers/ieee1394/dma.h
index a1682aba71c..2727bcd2419 100644
--- a/drivers/ieee1394/dma.h
+++ b/drivers/ieee1394/dma.h
@@ -66,35 +66,23 @@ struct dma_region {
int direction;
};
-/* clear out all fields but do not allocate anything */
void dma_region_init(struct dma_region *dma);
-
-/* allocate the buffer and map it to the IOMMU */
int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
struct pci_dev *dev, int direction);
-
-/* unmap and free the buffer */
void dma_region_free(struct dma_region *dma);
-
-/* sync the CPU's view of the buffer */
void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
unsigned long len);
-
-/* sync the IO bus' view of the buffer */
void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
unsigned long len);
-
-/* map the buffer into a user space process */
int dma_region_mmap(struct dma_region *dma, struct file *file,
struct vm_area_struct *vma);
+dma_addr_t dma_region_offset_to_bus(struct dma_region *dma,
+ unsigned long offset);
-/* macro to index into a DMA region (or dma_prog_region) */
+/**
+ * dma_region_i - macro to index into a DMA region (or dma_prog_region)
+ */
#define dma_region_i(_dma, _type, _index) \
( ((_type*) ((_dma)->kvirt)) + (_index) )
-/* return the DMA bus address of the byte with the given offset
- * relative to the beginning of the dma_region */
-dma_addr_t dma_region_offset_to_bus(struct dma_region *dma,
- unsigned long offset);
-
#endif /* IEEE1394_DMA_H */