diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2021-05-25 15:02:17 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-26 13:20:51 +0200 |
| commit | 94b63eb6e131a7fe94f1c1eb8e10162931506176 (patch) | |
| tree | 6aaea9302b04ee5cb6a698b3303f426b27388163 /arch/hexagon/include/asm/cmpxchg.h | |
| parent | c879c39ebc3a9bea280675840d623a40b4636c80 (diff) | |
locking/atomic: hexagon: 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 hexagon 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.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210525140232.53872-19-mark.rutland@arm.com
Diffstat (limited to 'arch/hexagon/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/hexagon/include/asm/cmpxchg.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/hexagon/include/asm/cmpxchg.h b/arch/hexagon/include/asm/cmpxchg.h index 92b8a02e588a..cdb705e1496a 100644 --- a/arch/hexagon/include/asm/cmpxchg.h +++ b/arch/hexagon/include/asm/cmpxchg.h @@ -42,7 +42,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, * Atomically swap the contents of a register with memory. Should be atomic * between multiple CPU's and within interrupts on the same CPU. */ -#define xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \ +#define arch_xchg(ptr, v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v), (ptr), \ sizeof(*(ptr)))) /* @@ -51,7 +51,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, * variable casting. */ -#define cmpxchg(ptr, old, new) \ +#define arch_cmpxchg(ptr, old, new) \ ({ \ __typeof__(ptr) __ptr = (ptr); \ __typeof__(*(ptr)) __old = (old); \ |