DrValkyer wrote:
"4. Can I use my PCI Expansion boards?
Yes, you can use expension boards such as the Mediator, Prometheus, Infinitive and RBM Onboard expanson cards. There are limitations with some peripherals
which use DMA to access memory and onboard cache which will not work on Amiga OS 4. "
So is there any possibility to hack AOS4 to use DMA? By AOS3 drivers or something??? Doesn't it mean then lack of PCI-sound? :-?
Have a look at the official OS4Classic compatibility list.
OS4 does support DMA, nobody needs to hack OS4 to use DMA,
however, the OS4 PCI drivers which require DMA to main
memory and which were included with OS4 for AOne are not
included with OS4Classic because the existing PCI solutions
for classic Amigas dont support DMA to main memory (and/or
dont support 3.3V only PCI cards). The GRex should support
DMA to main memory but OS4 cant support the GRex.
The Mediator supports DMA to gfx board memory, the existing
Elbox drivers use this feature and are copying the data
between main memory and gfx board memory. Its possible to
use the Elbox drivers when you disable all OS4 PCI drivers
and install a gfx board in the Mediator.
OS4Classic includes a driver for the Terratec 128i PCI
sound card, it is mentioned on the compatibility list.
Correct me when I'm wrong, I assume that PCI slots on
Infinitive and RBM daughter boards are "passive" slots
which require a PC bridgeboard to be usable, the Amiga
side cant access those PCI slots.
