How to obtain epf bar0 physical address

[WayneWWW]

maybe this would help clarify

How can I get physical address of dma_addr_t in xavier

I allocate a dma buffer using function: virt = dma_alloc_coherent(cdev, size, &dma_handle, GFP_KERNEL). The dma_handle is the address for dma and it is not in the ddr memory region. How can I get the physical address of the dma buffer? thanks

You could also refer to the 3 sample codes there.

pci-epf-dma-test.c
pci-epf-nv-test.c
pci-epf-tegra-vnet.c