FPGA Central

I had posted earlier my issues with Fpga card.

http://groups.google.com/group/comp....f880630f20ca74

The AMIRIX fpga card uses powerspan II pci bus switch fro Tundra. The
powerpc inside teh fpga has linux running..I have some data in my PLB
master/slave module which has to be transferred to the host pc. So I
was suggested to llok into DMA transfer part. I went through the
powerspan II manual . It doesnt provide the details of data cycle for
the DMA . i.e it only says to write the DMA configuration registers
with the source address , destination address... and then raisethe go
signal. Now my problem is that the source address needs to be the
on-board RAM address. I dont want to use the onboard RAM.I dont want to
use the powerpc either. I wanted to write a module in vhdl to do the
confguration adn the forward the data to the bridge. I dont know
whether this is possible. I

I dont have experience in this field. How can I do a transfer of data
from my master/slave module to the host computer?
Is there a way ?
Thanks,
Nitesh