Commit b62f1343 authored by Mathieu Desnoyers's avatar Mathieu Desnoyers Committed by Linus Torvalds

Add cmpxchg_local to v850

Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.
Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Miles Bader <miles.bader@necel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 80af4eeb
...@@ -103,6 +103,21 @@ static inline unsigned long __xchg (unsigned long with, ...@@ -103,6 +103,21 @@ static inline unsigned long __xchg (unsigned long with,
return tmp; return tmp;
} }
#include <asm-generic/cmpxchg-local.h>
/*
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
(unsigned long)(n), sizeof(*(ptr))))
#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
#ifndef CONFIG_SMP
#include <asm-generic/cmpxchg.h>
#endif
#define arch_align_stack(x) (x) #define arch_align_stack(x) (x)
#endif /* __V850_SYSTEM_H__ */ #endif /* __V850_SYSTEM_H__ */
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