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Diffstat (limited to 'Documentation/DMA-API.txt')
| -rw-r--r-- | Documentation/DMA-API.txt | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index 5aceb88b3f8..bb0e75e368b 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -364,34 +364,6 @@ API. Note: <nents> must be the number you passed in, *not* the number of physical entries returned. -void -dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -void -pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle, - size_t size, int direction) -void -dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -void -pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg, - int nelems, int direction) - -Synchronise a single contiguous or scatter/gather mapping. All the -parameters must be the same as those passed into the single mapping -API. - -Notes: You must do this: - -- Before reading values that have been written by DMA from the device - (use the DMA_FROM_DEVICE direction) -- After writing values that will be written to the device using DMA - (use the DMA_TO_DEVICE) direction -- before *and* after handing memory to the device if the memory is - DMA_BIDIRECTIONAL - -See also dma_map_single(). - dma_addr_t dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size, enum dma_data_direction dir, |