Which DMA is best for PCIe based FPGA to GPU

For transferring video streaming data from FPGA PCIe to GPU using RDMA do we need the FPGA DMA or the AGX SoC PCIe DMA and which is best ?

Will the FPGA DMA operation have access to GPU memory ?

Rather ask in a jetson agx forum
https://forums.developer.nvidia.com/c/agx-autonomous-machines/jetson-embedded-systems/70