In article <20011215175405.V9607@dr-evil.shagadelic.org>
thorpej@wasabisystems.com wrote:

> > So either some of these 4GB RAM is mapped above 4GB in physical address space 
> > or is masked by mapped PCI devices.
> > 
> > How is it done? Could someone shed some light on this?

> Yah, you need bounce buffers (remember ISA? :-)
> PCs suck, sigh.

bus_dma(9) is enough for us to support it? ;-)
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp