On Fri, May 11, 2018 at 8:57 AM, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > > Okay, so you don't have any evidence that DMA transfers done in single > reads/writes is broken with the current cmd_pause implementation. I think the easiest way to test this empirically would be to just hack dmatest to do a bunch of mem-to-mem transfers which it pauses and checks the copied data is consistent with the reported residue. Also, it would need to check the source/destination address registers in the pl330 for evidence of bytes read but not written. And the pl330.c driver would need to be fixed to not ignore the requested maxburst when doing mem-to-mem transfers. -- 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
