On Sat, 2014-10-25 at 19:08 -0700, GIRISH HALADY wrote: > Hi Andy, > Thanks a lot, I could get the dmatest work with "Petalinux" > of Xilinx. However, I had a quick on this test though. How would I > supply the address of a custom memory (SRAM), added in the > Programmable Logic (PL) part, as either SOURCE or DESTINATION address > to be able to do DMA between external DDR and internal SRAM. Would > appreciate your support. dmatest takes a DMA mapped memory address which is provided by corresponding DMA mapping of kernel allocated memory. So, the address is depends on kernel allocation you are using. I don't know if there is any mechanism to distinguish different memory types in existing allocator (like specific flags), but I guess you may dive into slab/slob/slub code depending on your needs. -- 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
