arm64: atomics: tidy up common atomic{,64}_* macros

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The common (i.e. identical for ll/sc and lse) atomic macros in atomic.h
are needlessley different for atomic_t and atomic64_t.

This patch tidies up the definitions to make them consistent across the
two atomic types and factors out common code such as the add_unless
implementation based on cmpxchg.

Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2015-06-04 16:41:36 +01:00

parent 4e39715f4b

commit a82e62382f

1 changed files with 40 additions and 59 deletions

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95

arch/arm64/include/asm/atomic.h

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