Add cmpxchg_local to ppc

	return prev;

}

static inline unsigned long

__cmpxchg_u32_local(volatile unsigned int *p, unsigned int old,

	unsigned int new)

{

	unsigned int prev;

	__asm__ __volatile__ ("\n\

1:	lwarx	%0,0,%2 \n\

	cmpw	0,%0,%3 \n\

	bne	2f \n"

	PPC405_ERR77(0,%2)

"	stwcx.	%4,0,%2 \n\

	bne-	1b\n"

"2:"

	: "=&r" (prev), "=m" (*p)

	: "r" (p), "r" (old), "r" (new), "m" (*p)

	: "cc", "memory");

	return prev;

}

/* This function doesn't exist, so you'll get a linker error

   if something tries to do an invalid cmpxchg().  */

extern void __cmpxchg_called_with_bad_pointer(void);

static __inline__ unsigned long

__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)

__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,

	unsigned int size)

{

	switch (size) {

	case 4:

				    (unsigned long)_n_, sizeof(*(ptr))); \

  })

#include <asm-generic/cmpxchg-local.h>

static inline unsigned long __cmpxchg_local(volatile void *ptr,

				      unsigned long old,

				      unsigned long new, int size)

{

	switch (size) {

	case 4:

		return __cmpxchg_u32_local(ptr, old, new);

	default:

		return __cmpxchg_local_generic(ptr, old, new, size);

	}

	return old;

}

/*

 * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make

 * them available.

 */

#define cmpxchg_local(ptr, o, n)				  	\

	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\

			(unsigned long)(n), sizeof(*(ptr))))

#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))

#define arch_align_stack(x) (x)

#endif /* __KERNEL__ */