Application notes AN456 and AN532 have been published.

With AN456, it is possible to perform DMA transfer using PCIe Core + DMA controller + On-Chip memory and check the transfer rate on the PC GUI.
AN456 : PCI Express High Performance Reference Design
https://www.intel.co.jp/content/dam/altera-www/global/ja_JP/pdfs/literature/an/an456_j.pdf

AN532 uses SOPC Builder to connect PCIe Core + DMA Controller + On-Chip memory.
It is possible to perform DMA transfer from the GUI of the PC, check the value of the DMA register, and access the configuration space.
AN532 : An SOPC Builder PCI Express Design with GUI Interface
https://www.intel.co.jp/content/dam/altera-www/global/ja_JP/pdfs/literature/an/an532.pdf