I'm trying to find out about NetBSD's machine-independent abstraction
for DMA mapping. 

ftp://ftp.demon.co.uk/pub/NetBSD/NetBSD-current/doc/CHANGES says:

       Implement new bus dma framework, providing a machine-independent
                abstraction for DMA mapping.  See bus_dma(9) for
                details.  Convert several machine-independent
                drivers to use new framework.  [thorpej 970606]

- but I can't find this man page (it isn't in
ftp://ftp.demon.co.uk/pub/NetBSD/NetBSD-current/src/share/man/man9/ ).
I've grepped the archives for tech-kernel without any success either.

I'd be grateful for any info about this. I'm new to NetBSD, so I
apologise in advance if I've missed something obvious.


Thanks,

- Julian


-- 
Julian Smith, Software Engineer                    Tel: +44 (0) 1223 725 000
Technologies & Engineering, Acorn Computers Ltd.   http://www.acorn.com/