K 10
svn:author
V 6
andrew
K 8
svn:date
V 27
2020-09-24T07:03:26.217373Z
K 7
svn:log
V 350
Add bounce helpers to the arm64 busdma

Add helper functions to the arm64 busdma for common cases of checking if
we may need to bounce, and if we must bounce for a given address.

These will be expanded later as we handle cache-misaligned memory.

Reported by:	mmel
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D26493

END