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

include/asm-v850/system.h

+15 −0
Original line number Original line Diff line number Diff line
@@ -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__ */