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Diffstat (limited to 'Documentation/driver-api/dmaengine/provider.rst')
| -rw-r--r-- | Documentation/driver-api/dmaengine/provider.rst | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst index 1e0f1f85d10e..ceac2a300e32 100644 --- a/Documentation/driver-api/dmaengine/provider.rst +++ b/Documentation/driver-api/dmaengine/provider.rst @@ -162,16 +162,6 @@ Currently, the types available are: - The device is able to do memory to memory copies -- - DMA_MEMCPY_SG - - - The device supports memory to memory scatter-gather transfers. - - - Even though a plain memcpy can look like a particular case of a - scatter-gather transfer, with a single chunk to copy, it's a distinct - transaction type in the mem2mem transfer case. This is because some very - simple devices might be able to do contiguous single-chunk memory copies, - but have no support for more complex SG transfers. - - No matter what the overall size of the combined chunks for source and destination is, only as many bytes as the smallest of the two will be transmitted. That means the number and size of the scatter-gather buffers in |