nds32: implement the unmap_sg DMA operation

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This matches the implementation of the more commonly used unmap_single
routines and the sync_sg_for_cpu method which should provide equivalent
cache maintainance.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Greentime Hu <greentime@andestech.com>
Tested-by: Greentime Hu <greentime@andestech.com>

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Christoph Hellwig 2018-05-19 09:22:05 +02:00

parent 4ac1c68e36

commit f860122c51

1 changed files with 6 additions and 0 deletions

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arch/nds32/kernel/dma.c

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