ARC: Enable optimistic spinning for LLSC config
ARCv2: Support IO Coherency and permutations in...
MAINTAINERS: add git tree for the arc architecture
ARCv2: IOC: Allow boot time disable
ARC: Eliminate some ARCv2 specific code for ARC...
ARC: add barriers to futex code
ARC: ensure futex ops are atomic in !LLSC config
ARC: futex cosmetics