On Mon, Feb 28, 2011 at 01:36:38PM +0200, Felix Radensky wrote: > Hi Ira, > > I've tried your patches with linux-2.6.38-rc6 on P2020RDB. > DMA test fails with the following errors if threads_per_chan != 1 > > dma0chan0-copy1: terminating after 1 tests, 1 failures (status 0) > dma0chan0-copy2: #0: test timed out > > I've run the test like this: > > modprobe dmatest threads_per_chan=2 iterations=1 >
Thanks Felix. This works fine on the 83xx DMA controller. When you have a chance, can you add "#define DEBUG 1" as the first line of drivers/dma/fsldma.c and then rerun your test with: modprobe dmatest threads_per_chan=2 iterations=1 max_channels=1 And send me the dmesg output. I don't quite understand the difference between links and lists in the 85xx controller yet. I'll work my way through the datasheet this morning and send out a fixed patch. Thanks very much for running the tests! Ira _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
