I'm trying to design an app where my Zedboard's FPGA takes some input data, processes it, and puts the results somewhere in its DDR memory. Rather than DMA it over to the PS side for further processing, is there a way for me to allow the PS to access that data directly? Seems like mmap() is the way to go, but I only see the PS side memory listed in my devicetree.dts. I vaguely recall someone posting a how to on adding the PL DDR as another 512MB block, but I can't seem to find that anymore.
Thanks for any help.