(Or which models don't, whichever is easier!)
Also, does anyone out there have experience with the use of the DDI/DKI
Would I call this after each time I get a DMA handle? Can this be invoked
on a machine with a 32-bit Sbus (and will it reliably fail in this case?)
Or do I look at the return value of ddi_dma_burstsizes after calling
ddi_dma_set_sbus64(), and compare the resulting burstsize with what was
requested in ddi_dma_set_sbus64()?
To say that this area is a little underdocumented is putting it mildly!
There is no mention of changes required for 64-bit SBus support in the
Also, is the IEEE Sbus spec available on-line anywhere, or a precis/summary