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| author | Mark Rutland <mark.rutland@arm.com> | 2021-05-25 17:02:12 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-26 14:20:50 +0300 |
| commit | 96d330aff7060f0882a5440ddb281cc3ab232d96 (patch) | |
| tree | 63643bd5a4e11de8086b500d67fde65beeb43c6f /arch/alpha/Kconfig | |
| parent | 82b993e8249ae3cb29c1b6eb8f6548f5748508b7 (diff) | |
| download | linux-96d330aff7060f0882a5440ddb281cc3ab232d96.tar.xz | |
locking/atomic: alpha: move to ARCH_ATOMIC
We'd like all architectures to convert to ARCH_ATOMIC, as once all
architectures are converted it will be possible to make significant
cleanups to the atomics headers, and this will make it much easier to
generically enable atomic functionality (e.g. debug logic in the
instrumented wrappers).
As a step towards that, this patch migrates alpha to ARCH_ATOMIC. The
arch code provides arch_{atomic,atomic64,xchg,cmpxchg}*(), and common
code wraps these with optional instrumentation to provide the regular
functions.
Note: xchg_local() is NOT currently part of the generic atomic
arch_atomic API, and is not instrumented.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210525140232.53872-14-mark.rutland@arm.com
Diffstat (limited to 'arch/alpha/Kconfig')
| -rw-r--r-- | arch/alpha/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 5998106faa60..7920fc2e2a2a 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -2,6 +2,7 @@ config ALPHA bool default y + select ARCH_ATOMIC select ARCH_32BIT_USTAT_F_TINODE select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO |