Mark Johnston c1fced6800 Add wrappers for arm64 atomics.
Add a _llsc suffix for the existing LL/SC-based implementations and add
trivial wrappers.  This is in preparation for supporting LSE-based
atomic(9) implementations.

No functional change intended.

Reviewed by:	andrew, kib
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation, Amazon (hardware)
Differential Revision:	https://reviews.freebsd.org/D23323
2020-02-03 18:23:14 +00:00
..
2020-02-03 18:23:14 +00:00