hexagon: remove the sync_single_for_cpu DMA operation

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hexagon does all the required cache maintainance at dma map time, and none
at unmap time.  It thus has to implement sync_single_for_device to match
the map cace for buffer reuse, but there is no point in doing another
invalidation in the sync_single_cpu_case, which in terms of cache
maintainance is equivalent to the unmap case.

Signed-off-by: Christoph Hellwig <hch@lst.de>

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Christoph Hellwig 2018-05-19 08:55:39 +02:00

parent d7b686ebf7

commit 37fca4bd01

1 changed files with 0 additions and 8 deletions

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arch/hexagon/kernel/dma.c

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