On Tuesday 01 February 2005 23:44, Daniel Phillips wrote: [...] > My suggestion here is to send the DMA setup commands through the command > ring buffer, that way the card can worry about initiating each > successive transfer immediately after the preceding one is finished, > and we can dispense with the complexities of scatter-gather. To signal > final completion the driver could put an "interrupt me" command in the > command buffer, or there could be some logic for generating an > interrupt when both DMA is finished and the command buffer is empty.
It seems to me that this is similar to what I tried to describe. At least it's the same kind of objective: doing something like scatter-gather. But do you think such operation is feasible in "direct mode" too? > This is a half-formed idea, it obviously has holes in it, but somewhere > in there is a nice strategy I think. Agreed. Rodolphe _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
