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dma: mv_xor: Simplify the DMA_MEMCPY operation
authorLior Amsalem <alior@marvell.com>
Wed, 27 Aug 2014 13:52:50 +0000 (10:52 -0300)
committerVinod Koul <vinod.koul@intel.com>
Tue, 23 Sep 2014 14:47:00 +0000 (20:17 +0530)
commit3e4f52e2da9f66ba9c19b9266fa9ffcaee2f3ecc
treec5f923dd0382720ec0b3121661333dfe91929996tree | snapshot
parentb8291ddeed581e57327d715d29ffc501b9d48c5fcommit | diff
dma: mv_xor: Simplify the DMA_MEMCPY operation

A memory copy operation can be expressed as an XOR operation with one
source. This commit removes code duplication in the driver by reusing
the XOR operation for the MEMCPY.

As an added benefit, we can now put MEMCPY and XOR descriptors on the
same chain, which improves performance.

Signed-off-by: Lior Amsalem <alior@marvell.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/mv_xor.c diff | blob | history
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