Timothy Normand Miller wrote:
On 9/6/07, Petter Urkedal <[EMAIL PROTECTED]> wrote:
(One last observation: VGA code is embarrassingly parallel, unless
memory access is the real bottleneck. If we were to add an interrupt
context, then I think we could almost as easily have 2 or 4 symmetric
contexts (threads) instead. I'm just pointing it out for now, since
dealing with resource sharing may however prevent us from exploiting the
parallelism, and I don't know if this is any useful in 3D mode.)
I had considered that idea but then rejected it when I considered
certain cases of the nanocontroller processing DMA command packets.
There, we're only doing one thing (decoding commands), and we need the
throughput to be efficient.
Is there any chance you could pound out a quick code sample for the DMA
case? Since the nanocontroller has to be able to support both this and
the VGA translation, I'd find it helpful to have an example for both.
If you have time, etc., of course.
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