re: dma at ebus

[matthew green <mrg%eterna.com.au@localhost>]

> 
>    So, in working on my X1 some more, I notice that the GENERIC kernel  
> has a "dma* at sbus?", presumedly solely for the "esp* at dma?".  And,  
> my Sun Netra X1 has a dma at ebus that is "not configured".
> 
>    Is the dma reported by the OBP not nearly the same as the "dma* at  
> sbus?"?  Or, it is just that there's no need for it, so no one adapted  
> the driver to attach it?

i'm not sure exactly what the dma @ ebus node provides.  we don't seem
to need it for any functionality for ebus devices.  ebus == ISA for
sparc, btw.  you can plug in ISA-style chipsets on one side, and have
them appear in the OFW tree on the other side...

it has nothing to do with dma @ sbus, which is part of the scsi
controller, yeah.


.mrg.