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r: 187265
b: refs/heads/master
c: 039956e
h: refs/heads/master
i:
  187263: 9811b99
v: v3
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FUJITA Tomonori authored and Linus Torvalds committed Mar 12, 2010
1 parent a33fc3a commit 2b682e5
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 8004fd2ad6042ae24d3913cf5089909781db3a25
refs/heads/master: 039956e9199b71ea673954e025f52f319110ca58
28 changes: 0 additions & 28 deletions trunk/Documentation/DMA-API.txt
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Expand Up @@ -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,
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