arch: remove blackfin port

[sfrench/cifs-2.6.git] / arch / blackfin / include / asm / cmpxchg.h

diff --git a/arch/blackfin/include/asm/cmpxchg.h b/arch/blackfin/include/asm/cmpxchg.h
deleted file mode 100644 (file)
index 2539288..0000000
--- a/arch/blackfin/include/asm/cmpxchg.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright 2004-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __ARCH_BLACKFIN_CMPXCHG__
-#define __ARCH_BLACKFIN_CMPXCHG__
-
-#ifdef CONFIG_SMP
-
-#include <linux/linkage.h>
-
-asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
-asmlinkage unsigned long __raw_xchg_2_asm(volatile void *ptr, unsigned long value);
-asmlinkage unsigned long __raw_xchg_4_asm(volatile void *ptr, unsigned long value);
-asmlinkage unsigned long __raw_cmpxchg_1_asm(volatile void *ptr,
-                                       unsigned long new, unsigned long old);
-asmlinkage unsigned long __raw_cmpxchg_2_asm(volatile void *ptr,
-                                       unsigned long new, unsigned long old);
-asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
-                                       unsigned long new, unsigned long old);
-
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
-                                  int size)
-{
-       unsigned long tmp;
-
-       switch (size) {
-       case 1:
-               tmp = __raw_xchg_1_asm(ptr, x);
-               break;
-       case 2:
-               tmp = __raw_xchg_2_asm(ptr, x);
-               break;
-       case 4:
-               tmp = __raw_xchg_4_asm(ptr, x);
-               break;
-       }
-
-       return tmp;
-}
-
-/*
- * 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.
- */
-static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
-                                     unsigned long new, int size)
-{
-       unsigned long tmp;
-
-       switch (size) {
-       case 1:
-               tmp = __raw_cmpxchg_1_asm(ptr, new, old);
-               break;
-       case 2:
-               tmp = __raw_cmpxchg_2_asm(ptr, new, old);
-               break;
-       case 4:
-               tmp = __raw_cmpxchg_4_asm(ptr, new, old);
-               break;
-       }
-
-       return tmp;
-}
-#define cmpxchg(ptr, o, n) \
-       ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
-               (unsigned long)(n), sizeof(*(ptr))))
-
-#else /* !CONFIG_SMP */
-
-#include <mach/blackfin.h>
-#include <asm/irqflags.h>
-
-struct __xchg_dummy {
-       unsigned long a[100];
-};
-#define __xg(x) ((volatile struct __xchg_dummy *)(x))
-
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
-                                  int size)
-{
-       unsigned long tmp = 0;
-       unsigned long flags;
-
-       flags = hard_local_irq_save();
-
-       switch (size) {
-       case 1:
-               __asm__ __volatile__
-                       ("%0 = b%2 (z);\n\t"
-                        "b%2 = %1;\n\t"
-                        : "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
-               break;
-       case 2:
-               __asm__ __volatile__
-                       ("%0 = w%2 (z);\n\t"
-                        "w%2 = %1;\n\t"
-                        : "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
-               break;
-       case 4:
-               __asm__ __volatile__
-                       ("%0 = %2;\n\t"
-                        "%2 = %1;\n\t"
-                        : "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
-               break;
-       }
-       hard_local_irq_restore(flags);
-       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))
-
-#define cmpxchg(ptr, o, n)     cmpxchg_local((ptr), (o), (n))
-#define cmpxchg64(ptr, o, n)   cmpxchg64_local((ptr), (o), (n))
-
-#endif /* !CONFIG_SMP */
-
-#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
-
-#endif /* __ARCH_BLACKFIN_CMPXCHG__ */