X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fasm-sh%2Fatomic.h;h=e12570b9339dcb1a127222cdc04383752a88fc59;hb=cdb7532f7be35c3675b1aed54d10e378014618b6;hp=618d8e0de3480e7b4c8f8610c3d8a35628846bbf;hpb=cc918c7ab7da017bfaf9661420bb5c462e057cfb;p=mv-sheeva.git

diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h
index 618d8e0de34..e12570b9339 100644
--- a/include/asm-sh/atomic.h
+++ b/include/asm-sh/atomic.h
@@ -14,60 +14,17 @@ typedef struct { volatile int counter; } atomic_t;
 #define atomic_read(v)		((v)->counter)
 #define atomic_set(v,i)		((v)->counter = (i))
 
+#include <linux/compiler.h>
 #include <asm/system.h>
 
-/*
- * To get proper branch prediction for the main line, we must branch
- * forward to code at the end of this object's .text section, then
- * branch back to restart the operation.
- */
-
-static __inline__ void atomic_add(int i, atomic_t * v)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	*(long *)v += i;
-	local_irq_restore(flags);
-}
-
-static __inline__ void atomic_sub(int i, atomic_t *v)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	*(long *)v -= i;
-	local_irq_restore(flags);
-}
-
-static __inline__ int atomic_add_return(int i, atomic_t * v)
-{
-	unsigned long temp, flags;
-
-	local_irq_save(flags);
-	temp = *(long *)v;
-	temp += i;
-	*(long *)v = temp;
-	local_irq_restore(flags);
-
-	return temp;
-}
+#ifdef CONFIG_CPU_SH4A
+#include <asm/atomic-llsc.h>
+#else
+#include <asm/atomic-irq.h>
+#endif
 
 #define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
 
-static __inline__ int atomic_sub_return(int i, atomic_t * v)
-{
-	unsigned long temp, flags;
-
-	local_irq_save(flags);
-	temp = *(long *)v;
-	temp -= i;
-	*(long *)v = temp;
-	local_irq_restore(flags);
-
-	return temp;
-}
-
 #define atomic_dec_return(v) atomic_sub_return(1,(v))
 #define atomic_inc_return(v) atomic_add_return(1,(v))
 
@@ -101,6 +58,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
 static inline int atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int ret;
@@ -116,24 +75,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 }
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	*(long *)v &= ~mask;
-	local_irq_restore(flags);
-}
-
-static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	*(long *)v |= mask;
-	local_irq_restore(flags);
-}
-
 /* Atomic operations are already serializing on SH */
 #define smp_mb__before_atomic_dec()	barrier()
 #define smp_mb__after_atomic_dec()	barrier()