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arm64: cmpxchg: implement cmpxchg64_relaxed
authorWill Deacon <will.deacon@arm.com>
Wed, 9 Oct 2013 14:54:28 +0000 (15:54 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Thu, 24 Oct 2013 14:46:35 +0000 (15:46 +0100)
commitcf10b79a7d88edc689479af989b3a88e9adf07ff
treefffcc72aa8e542ee331622c6f914ec5c6db11e45tree | snapshot (tar.gz zip)
parent5686b06cea34e31ec0a549d9b5ac00776e8e8d6dcommit | diff
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>
arch/arm64/include/asm/cmpxchg.h diff | blob | blame | history