Hi, we want to design a system using mpc8548, and linking with an
idt 16 ports PCIE switch.
In the system, the total PCI
address needed is about 3GB, so I want to know how to support it in linux.
mpc8548 has 36-bit real address, and can support 32GB PCIE address space,
but in linux, there is only 1GB kernel space, how to map the 3GB pci address to
kernel? Is the 36-bit real address only used to support
large memory(>4GB) for muti-threads?
Any suggestions please would be much appreciated!
Thanks in advance for your help