Lloyd Sargent wrote: > On Monday 05 November 2007 15:13, Eric Nelson wrote: >>> Denis Oliver Kropp dok at directfb.org >>> Lloyd Sargent wrote: >> Denis is right about synchronization, though. Doing DMA-based >> blts on the ARM-side would require waiting for DSP completion >> to allow pipelining of graphics ops. > > This would only be true IFF you are using the DSP. Some applications do not > due to cost. Also, there is the DM355 which doesn't have a DSP. > > So there are some places where DMA-based may come in handy.
True enough. DMA should also be helpful in the DSP case, but invoked by the DSP instead of ARM to keep the pipeline and caches nice and clean. Eric _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
