Re: Dynamic DMA Mapping document

[kanoj@xxxxxxxxxxxxxxxxxxx (Kanoj Sarcar)]

Right away you can see that we probably need to pass in another arg
to the dma api's: an indicator whether we are dma'ing commands or
data to/from the controller, so as to be able to set address attr
bits like prefetch, virtual channel numbers etc in the returned 
dma_handle.

Probably some more stuff, similar to all the info that 
pciio_dmatrans_addr() gets.

Kanoj