Conrad Meyer c4492f4758 NTB: WC/WB isn't enough; set MMR region as UC
And expose vm_memattr_t of current mapping to consumers (as well as the
ability to change it to one of UC, WB, WC).

After short discussion with:	jhb (but no review)
Sponsored by:	EMC / Isilon Storage Division
2015-11-25 01:59:08 +00:00
..