CONFIG_DMA_ENGINE (not configurable)

modulename: dmaengine.ko

configname: CONFIG_DMA_ENGINE

Linux Kernel Configuration
└─>Device Drivers
└─>DMA Engine support
└─>DMA_ENGINE
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
drivers/dma/dmaengine.c

is selected by
CONFIG_DMATEST