tree fffcc72aa8e542ee331622c6f914ec5c6db11e45
parent 5686b06cea34e31ec0a549d9b5ac00776e8e8d6d
author Will Deacon <will.deacon@arm.com> 1381330468 +0100
committer Catalin Marinas <catalin.marinas@arm.com> 1382625995 +0100

arm64: cmpxchg: implement cmpxchg64_relaxed

This patch introduces cmpxchg64_relaxed for arm64 using the existing
cmpxchg_local macro, which performs a cmpxchg operation (up to 64 bits)
without barrier semantics.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>