On Monday 21 March 2005 02:38, Lucas Martin-King wrote: > I'm still trying to conceptialise the mechanism. Am I right in > thinking that the kernel driver will initiate DMA between the card > and user process for transporting command data, because pulling the > memory using normal methods will be painfull?
The card uses DMA so that it can pull commands or data whenever it is ready and not have to involve the CPU, which can go off and do other things. > I suppose one advantage of this method would be that a process > wouldn't need any special privelages because it isn't initating the > DMA transfers. Exactly. Regards, Daniel _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
