Yes, however it is convenient to do so.
The point is that AGP base address will not normally overlap the location
of system RAM. This is, of course, only reasonable for 32 bit systems..
I understand that part, but it's not what I meant. What I mean is this: You
said, RADEON_MC_AGP_LOCATION is used to program where AGP is in the card's
address space, and that's all fine and makes sense.
However, we are *also* programming dev->agp->base into a register called
RADEON_AGP_BASE. What is the meaning of that register?
AFAIK this offset is used by PCI GART. When PCI GART is on this offset
specifies location of "AGP-like" space.
best
Vladimir Dergachev
cu,
Nicolai
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