The two agx orins communicate via pcie: BAR 0: no space for [mem size 0x08000000]

Platform:
EP: Jetson AGX Orin industrial. R35.6.
RP: Jetson AGX Orin industrial. R35.6.
I am using two Orin modules for RP/EP communication.
After I changed CONFIG_CMA_SIZE_MBYTES in “defconfig” from 64 to 128, changing BAR0_SIZE in “pci-epf-nv-test.c” file to SZ_64M , it worked well.

In this case, changing BAR0_SIZE to SZ_128M, the initialization error occurred:


Is there anything else I need to modify?
Thanks!

Duplicated.