Hi all, I'm implementing a new DMA driver for an IP and I've used /drivers/dma/dw/* driver has reference. This driver uses DMA engine framework. Now I would like to start testing my new driver by using DMAtest tool, I've follow the instructions written on [1], but I don't get any output from it. I think DMAtest didn't even started... Can you help to track down this? These were the commands that I execute for the test. % uname -a Linux axs101 4.19.0-rc1 #355 PREEMPT Mon Oct 15 11:56:03 CEST 2018 arc GNU/Linux % ls -1 /sys/class/dma/ dma0chan0 dma0chan1 dma1chan0 dma1chan1 % echo dma0chan0 > /sys/module/dmatest/parameters/channel % echo 1 > /sys/module/dmatest/parameters/iterations % echo 2000 > /sys/module/dmatest/parameters/timeout % echo 1 > /sys/module/dmatest/parameters/verbose % echo 1 > /sys/module/dmatest/parameters/run % cat /sys/module/dmatest/parameters/run % N [1] https://www.kernel.org/doc/html/v4.15/driver-api/dmaengine/dmatest.html Regards, Gustavo
