On Mon, Dec 10, 2001 at 08:52:26PM +0100, Benjamin Herrenschmidt wrote:
> ...
> Some chipsets (and the original agpgart supported those only) can
> let the CPU access the AGP aperture directly. All mmap had to do
> was then to map the user pages to the aperture physical pages,
> if they had memory bound or not didn't matter.

Chipsets of the motherboard, or chipset of the card?
Does the agp code still support that type of direct mapping for those
cards, and could you point me to the place in the driver code where that is
done?
It looks like the latest linux agpgart_be.c only uses gatt tables, which
seems to imply it doesnt do the "direct" mapping any more ?

[ugh. its tough wading through the linux code: there are waaay too
 many #define shortcut()s ]


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