arm64: locking: Replace ticket lock implementation with qspinlock

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It's fair to say that our ticket lock has served us well over time, but
it's time to bite the bullet and start using the generic qspinlock code
so we can make use of explicit MCS queuing and potentially better PV
performance in future.

Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2018-03-13 20:45:45 +00:00

parent 598865c5f3

commit c11090474d

4 changed files with 4 additions and 132 deletions

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1

arch/arm64/Kconfig

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1

arch/arm64/include/asm/Kbuild

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117

arch/arm64/include/asm/spinlock.h

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17

arch/arm64/include/asm/spinlock_types.h

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