quoted

I set the AGP aperture base register and agp_bridge->gart_bus_addr to
0x01000000 (>=16MB) (trial and error :-) and it seems to work with
cant_use_aperture=1 

Makes sense, since this value is right in the middle of your RAM :) What
does the firmware sets the base register too ?

I did a readout of all AGP related registers and the base register was set
to 0x0, so the firmware doesn't set it up at all.

Can't you try to allocate some resource in the PCI area that isn't
already occupied instead ?

I though the GART base address should be in memory space!?
Sorry for this dumb question: how can I allocate a resource in the PCI area?
I'm not yet familiar with the whole Linux PCI/MM API. :) With something like
pci_alloc_consistent()?

quoted

(and without the modification in drm_vm.c). Even the X
server maps all the data to this address and displays a login screen.
Unfortunately it always freezes in. I guess this is due to the missing
GART flush functionality. So I have to get this working first.

Yah, that would be pretty bad...

Indeed! :)

Gerhard

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