Re: Alpha: virt_to_bus/GFP_DMA problem
Richard Henderson (rth@cygnus.com)
Fri, 10 Dec 1999 10:29:43 -0800
On Fri, Dec 10, 1999 at 06:19:37PM +0100, Jes Sorensen wrote:
> The devices I am playing with already support 64 bit address cycles,
> even on 32 bit busses ;-) Like the Alteon AceNIC Gigabit card and the
> Essential RoadRunner HIPPI card.
Yeah, but DAC takes two cycles on the address bus instead
of one. If we use SG, we can avoid that.
r~
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