> Hi Andy, > Thanks for the reply. Apologize for the delay in getting back. I did try the step that you mentioned: > > zynq> ls -1 /sys/class/dma/ > dma0chan0 > dma0chan1 > dma0chan2 > dma0chan3 > dma0chan4 > dma0chan5 > dma0chan6 > dma0chan7 > > Looks like all the 8 channels of PL330 are supported. But as I said earlier, neither the kernel module method, nor the built-in command method seems to work. > > zynq> modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run > 1 > modprobe: chdir(3.14.0-xilinx-dirty): No such file or directory > > > zynq> dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmates > t.run=1 > -/bin/ash: dmatest.channel=dma0chan0: not found > > Please suggest what needs to be changed to get this test to work. > > Best Regards > Girish > > > > On Mon, Oct 6, 2014 at 4:20 AM, Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: >> >> On Sun, 2014-10-05 at 23:56 -0700, GIRISH HALADY wrote: >> > Hi Andiry, >> > Thanks for the post on www.kernel.org: >> > https://www.kernel.org/doc/Documentation/dmatest.txt >> > >> > >> First of all, I dared to answer this mail publicly. Please, keep the >> mailing list address in the Cc list (dmaengine@xxxxxxxxxxxxxxx) for now >> and for any future mail regarding to DMA engine subsystem related >> issues. >> > >> > I was trying to run this test on my target (Microzed Zynq7010 board). >> > I could get the dmatest compiled within the kernel. However, when I >> > try running the command I get some strange error. Thought I check >> > with you if I am missing something. >> >> > The objective that I setforth was to be able to run the dmatest from >> > DDR to a RAM instance in the Programmable Logic which is mapped to the >> > processing system (PS7) that runs dual-ARM A9 and an embedded linux >> > kernel on it. >> >> > zynq> modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run >> > =1 >> > modprobe: chdir(3.14.0-xilinx-dirty): No such file or directory >> > >> > Kernel command : ERROR >> >> > zynq> dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iteration >> > s=1 dmatest.run=1 >> > -/bin/ash: dmatest.channel=dma0chan0: not found >> >> > Please help me understand how I go about fixing this. >> > >> Have you tried to get the list of available dma channels first as >> suggested by the documentation? >> >> "Hint: available channel list could be extracted by running the >> following command: >> % ls -1 /sys/class/dma/ >> " >> >> >> -- >> Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> >> Intel Finland Oy >> > -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
