1 files changed, 1 insertions, 129 deletions

diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h
index 5316f3cac230..b7b8021e8c43 100644
--- a/include/asm-x86_64/system.h
+++ b/include/asm-x86_64/system.h
@@ -3,7 +3,7 @@
 
 #include <linux/kernel.h>
 #include <asm/segment.h>
-#include <asm/alternative.h>
+#include <asm/cmpxchg.h>
 
 #ifdef __KERNEL__
 
@@ -124,134 +124,6 @@ static inline void sched_cacheflush(void)
 
 #define nop() __asm__ __volatile__ ("nop")
 
-#define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
-
-#define __xg(x) ((volatile long *)(x))
-
-static inline void set_64bit(volatile unsigned long *ptr, unsigned long val)
-{
-        *ptr = val;
-}
-
-#define _set_64bit set_64bit
-
-/*
- * Note: no "lock" prefix even on SMP: xchg always implies lock anyway
- * Note 2: xchg has side effect, so that attribute volatile is necessary,
- *        but generally the primitive is invalid, *ptr is output argument. --ANK
- */
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
-{
-        switch (size) {
-                case 1:
-                        __asm__ __volatile__("xchgb %b0,%1"
-                                :"=q" (x)
-                                :"m" (*__xg(ptr)), "0" (x)
-                                :"memory");
-                        break;
-                case 2:
-                        __asm__ __volatile__("xchgw %w0,%1"
-                                :"=r" (x)
-                                :"m" (*__xg(ptr)), "0" (x)
-                                :"memory");
-                        break;
-                case 4:
-                        __asm__ __volatile__("xchgl %k0,%1"
-                                :"=r" (x)
-                                :"m" (*__xg(ptr)), "0" (x)
-                                :"memory");
-                        break;
-                case 8:
-                        __asm__ __volatile__("xchgq %0,%1"
-                                :"=r" (x)
-                                :"m" (*__xg(ptr)), "0" (x)
-                                :"memory");
-                        break;
-        }
-        return x;
-}
-
-/*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
- */
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
-                                      unsigned long new, int size)
-{
-        unsigned long prev;
-        switch (size) {
-        case 1:
-                __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
-                                     : "=a"(prev)
-                                     : "q"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 2:
-                __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 4:
-                __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %k1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 8:
-                __asm__ __volatile__(LOCK_PREFIX "cmpxchgq %1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        }
-        return old;
-}
-
-static inline unsigned long __cmpxchg_local(volatile void *ptr,
-                        unsigned long old, unsigned long new, int size)
-{
-        unsigned long prev;
-        switch (size) {
-        case 1:
-                __asm__ __volatile__("cmpxchgb %b1,%2"
-                                     : "=a"(prev)
-                                     : "q"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 2:
-                __asm__ __volatile__("cmpxchgw %w1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 4:
-                __asm__ __volatile__("cmpxchgl %k1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        case 8:
-                __asm__ __volatile__("cmpxchgq %1,%2"
-                                     : "=a"(prev)
-                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
-                                     : "memory");
-                return prev;
-        }
-        return old;
-}
-
-#define cmpxchg(ptr,o,n)\
-        ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
-                                        (unsigned long)(n),sizeof(*(ptr))))
-#define cmpxchg_local(ptr,o,n)\
-        ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
-                                        (unsigned long)(n),sizeof(*(ptr))))
-
 #ifdef CONFIG_SMP
 #define smp_mb()        mb()
 #define smp_rmb()       rmb()