parisc: fix missing cmpxchg file error from system.h split

[pandora-kernel.git] / arch / parisc / include / asm / atomic.h

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 3ae5607..6c6defc 100644 (file)
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -6,6 +6,7 @@
 #define _ASM_PARISC_ATOMIC_H_
 
 #include <linux/types.h>
+#include <asm/cmpxchg.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -48,112 +49,6 @@ extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 #  define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
 #endif
 
-/* This should get optimized out since it's never called.
-** Or get a link error if xchg is used "wrong".
-*/
-extern void __xchg_called_with_bad_pointer(void);
-
-
-/* __xchg32/64 defined in arch/parisc/lib/bitops.c */
-extern unsigned long __xchg8(char, char *);
-extern unsigned long __xchg32(int, int *);
-#ifdef CONFIG_64BIT
-extern unsigned long __xchg64(unsigned long, unsigned long *);
-#endif
-
-/* optimizer better get rid of switch since size is a constant */
-static __inline__ unsigned long
-__xchg(unsigned long x, __volatile__ void * ptr, int size)
-{
-       switch(size) {
-#ifdef CONFIG_64BIT
-       case 8: return __xchg64(x,(unsigned long *) ptr);
-#endif
-       case 4: return __xchg32((int) x, (int *) ptr);
-       case 1: return __xchg8((char) x, (char *) ptr);
-       }
-       __xchg_called_with_bad_pointer();
-       return x;
-}
-
-
-/*
-** REVISIT - Abandoned use of LDCW in xchg() for now:
-** o need to test sizeof(*ptr) to avoid clearing adjacent bytes
-** o and while we are at it, could CONFIG_64BIT code use LDCD too?
-**
-**     if (__builtin_constant_p(x) && (x == NULL))
-**             if (((unsigned long)p & 0xf) == 0)
-**                     return __ldcw(p);
-*/
-#define xchg(ptr,x) \
-       ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
-
-
-#define __HAVE_ARCH_CMPXCHG    1
-
-/* bug catcher for when unsupported size is used - won't link */
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */
-extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, unsigned int new_);
-extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsigned long new_);
-
-/* don't worry...optimizer will get rid of most of this */
-static __inline__ unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
-{
-       switch(size) {
-#ifdef CONFIG_64BIT
-       case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
-#endif
-       case 4: return __cmpxchg_u32((unsigned int *)ptr, (unsigned int) old, (unsigned int) new_);
-       }
-       __cmpxchg_called_with_bad_pointer();
-       return old;
-}
-
-#define cmpxchg(ptr,o,n)                                                \
-  ({                                                                    \
-     __typeof__(*(ptr)) _o_ = (o);                                      \
-     __typeof__(*(ptr)) _n_ = (n);                                      \
-     (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,          \
-                                   (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) {
-#ifdef CONFIG_64BIT
-       case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_);
-#endif
-       case 4: return __cmpxchg_u32(ptr, old, new_);
-       default:
-               return __cmpxchg_local_generic(ptr, old, new_, size);
-       }
-}
-
-/*
- * 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))))
-#ifdef CONFIG_64BIT
-#define cmpxchg64_local(ptr, o, n)                                     \
-  ({                                                                   \
-       BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
-       cmpxchg_local((ptr), (o), (n));                                 \
-  })
-#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-#endif
-
 /*
  * Note that we need not lock read accesses - aligned word writes/reads
  * are atomic, so a reader never sees inconsistent values.