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DirectGMA Documentation

Question asked by mriera on Oct 6, 2014
Latest reply on Oct 29, 2014 by chm

Hello guys, I have been tasked to create an FPGA-based PCIe card that will leverage DirectGMA with a FirePro in the same PCIe network (similar to AJA, Bluefish,...etc). I have looked around, but I am having difficulty finding documentation on how to develop the code to transmit information from the GPU to another device on the PCIe network. I am also having trouble finding the board specific compatibility specifications. Are there any forms of indepth documentation on how I can access the GPU physical memory from a peripheral device? and how to issue PCIe TLP writes to the peripheral? How does DirectGMA handle the address translation from a virtual memory to GPU physical memory perspective?


Thank you for any help you can offer