svn commit: r212061 - head/sys/dev/bge

[Matthew Jacob]

  But not amd64 please.

> Keep in mind the PAE case where you cannot effectively specify a 4GB
> boundary.  I used a 2GB boundary for twa(4) in the PAE case to deal
> with the boundary issue.  Probably though, bus_dma should just always
> enforce a 4GB boundary, at least on x86.
>