Re: sun3 port different then many others

Do any of the framebuffers use DMA ?

I thought I had seen something about DMA in the cg4 driver, but now that
I look again, I can see I was too tired when I was last looking at it
(was probably looking at something else while trying to figure out
the structural differences between the sun3 port and all the other ports).

I guess the framebuffers just are mmaped in and accessed that way by looking
at the cg4 driver.... which makes sense.... I think sun always used memory
mapped devices, no ?  DMA would just be used by things like disc,
ethernet, etc... stuff that takes data in... right ?

-- Curt

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>Date: Tue, 3 Jun 2003 23:02:39 -0400 (EDT)
>To: [email protected]
>Subject: Re: sun3 port different then many others
>
>> the cg8 doesn't use DMA ????
>
>> ummm... what does it use ?
>
>For what?  What does the cg8 do that you'd think it would have any use
>for DMA for?
>
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