#define rmb() mb ()
#define wmb() mb ()
#define read_barrier_depends() ((void)0)
-#define set_rmb(var, value) do { xchg (&var, value); } while (0)
-#define set_mb(var, value) set_rmb (var, value)
+#define set_mb(var, value) do { xchg (&var, value); } while (0)
#define smp_mb() mb ()
#define smp_rmb() rmb ()
#define xchg(ptr, with) \
((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr))))
-#define tas(ptr) (xchg ((ptr), 1))
static inline unsigned long __xchg (unsigned long with,
__volatile__ void *ptr, int size)
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)
#endif /* __V850_SYSTEM_H__ */