tree c5f923dd0382720ec0b3121661333dfe91929996
parent b8291ddeed581e57327d715d29ffc501b9d48c5f
author Lior Amsalem <alior@marvell.com> 1409147570 -0300
committer Vinod Koul <vinod.koul@intel.com> 1411483620 +0530

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>