> Hi folks,
> 
> In the arm32 port there are devices like `beep0 at vidc0' (with `vidc0 at
> mainbus?' that use DMA but are not using dmamem mappings trough the bus. I
> need this structure to be able to claim memory from a second free list for
> DMA to support the Kinetic card (added successfully).
> 

Beep has always been in the wrong place, it access the same H/W registers 
as vidcaudio and the two consequently mess with each other.  The code I 
have (which I've never got around to submitting 'cos it really needs 
converting to the yet-to-be-written bus_space_dma) has it there.

R.