Andrew Turner 5db4448f06 Add support to the arm64 busdma to handle the cache. For now this is
disabled, however when we enable it it will default to assume memory is
not cache-coherent, unless either the tag was created or the parent was
marked as cache-coherent.

Obtained from:	ABT Systems Ltd
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
2016-05-13 16:03:50 +00:00
..
2016-05-05 22:26:23 +00:00