tile: rework <asm/cmpxchg.h>

[karo-tx-linux.git] / arch / tile / include / asm / atomic_32.h

diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index 96156f5ba640e9e9dd1e915643ed01ebde0feaec..0d0395b1b1529d454f772ebb61e240d7fb41f52a 100644 (file)
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -22,40 +22,6 @@
 
 #ifndef __ASSEMBLY__
 
-/* Tile-specific routines to support <linux/atomic.h>. */
-int _atomic_xchg(atomic_t *v, int n);
-int _atomic_xchg_add(atomic_t *v, int i);
-int _atomic_xchg_add_unless(atomic_t *v, int a, int u);
-int _atomic_cmpxchg(atomic_t *v, int o, int n);
-
-/**
- * atomic_xchg - atomically exchange contents of memory with a new value
- * @v: pointer of type atomic_t
- * @i: integer value to store in memory
- *
- * Atomically sets @v to @i and returns old @v
- */
-static inline int atomic_xchg(atomic_t *v, int n)
-{
-       smp_mb();  /* barrier for proper semantics */
-       return _atomic_xchg(v, n);
-}
-
-/**
- * atomic_cmpxchg - atomically exchange contents of memory if it matches
- * @v: pointer of type atomic_t
- * @o: old value that memory should have
- * @n: new value to write to memory if it matches
- *
- * Atomically checks if @v holds @o and replaces it with @n if so.
- * Returns the old value at @v.
- */
-static inline int atomic_cmpxchg(atomic_t *v, int o, int n)
-{
-       smp_mb();  /* barrier for proper semantics */
-       return _atomic_cmpxchg(v, o, n);
-}
-
 /**
  * atomic_add - add integer to atomic variable
  * @i: integer value to add
@@ -65,7 +31,7 @@ static inline int atomic_cmpxchg(atomic_t *v, int o, int n)
  */
 static inline void atomic_add(int i, atomic_t *v)
 {
-       _atomic_xchg_add(v, i);
+       _atomic_xchg_add(&v->counter, i);
 }
 
 /**
@@ -78,7 +44,7 @@ static inline void atomic_add(int i, atomic_t *v)
 static inline int atomic_add_return(int i, atomic_t *v)
 {
        smp_mb();  /* barrier for proper semantics */
-       return _atomic_xchg_add(v, i) + i;
+       return _atomic_xchg_add(&v->counter, i) + i;
 }
 
 /**
@@ -93,7 +59,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
        smp_mb();  /* barrier for proper semantics */
-       return _atomic_xchg_add_unless(v, a, u);
+       return _atomic_xchg_add_unless(&v->counter, a, u);
 }
 
 /**
@@ -108,7 +74,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
  */
 static inline void atomic_set(atomic_t *v, int n)
 {
-       _atomic_xchg(v, n);
+       _atomic_xchg(&v->counter, n);
 }
 
 /* A 64bit atomic type */
@@ -119,11 +85,6 @@ typedef struct {
 
 #define ATOMIC64_INIT(val) { (val) }
 
-u64 _atomic64_xchg(atomic64_t *v, u64 n);
-u64 _atomic64_xchg_add(atomic64_t *v, u64 i);
-u64 _atomic64_xchg_add_unless(atomic64_t *v, u64 a, u64 u);
-u64 _atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n);
-
 /**
  * atomic64_read - read atomic variable
  * @v: pointer of type atomic64_t
@@ -137,35 +98,7 @@ static inline u64 atomic64_read(const atomic64_t *v)
         * Casting away const is safe since the atomic support routines
         * do not write to memory if the value has not been modified.
         */
-       return _atomic64_xchg_add((atomic64_t *)v, 0);
-}
-
-/**
- * atomic64_xchg - atomically exchange contents of memory with a new value
- * @v: pointer of type atomic64_t
- * @i: integer value to store in memory
- *
- * Atomically sets @v to @i and returns old @v
- */
-static inline u64 atomic64_xchg(atomic64_t *v, u64 n)
-{
-       smp_mb();  /* barrier for proper semantics */
-       return _atomic64_xchg(v, n);
-}
-
-/**
- * atomic64_cmpxchg - atomically exchange contents of memory if it matches
- * @v: pointer of type atomic64_t
- * @o: old value that memory should have
- * @n: new value to write to memory if it matches
- *
- * Atomically checks if @v holds @o and replaces it with @n if so.
- * Returns the old value at @v.
- */
-static inline u64 atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
-{
-       smp_mb();  /* barrier for proper semantics */
-       return _atomic64_cmpxchg(v, o, n);
+       return _atomic64_xchg_add((u64 *)&v->counter, 0);
 }
 
 /**
@@ -177,7 +110,7 @@ static inline u64 atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
  */
 static inline void atomic64_add(u64 i, atomic64_t *v)
 {
-       _atomic64_xchg_add(v, i);
+       _atomic64_xchg_add(&v->counter, i);
 }
 
 /**
@@ -190,7 +123,7 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
 {
        smp_mb();  /* barrier for proper semantics */
-       return _atomic64_xchg_add(v, i) + i;
+       return _atomic64_xchg_add(&v->counter, i) + i;
 }
 
 /**
@@ -205,7 +138,7 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
 static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 {
        smp_mb();  /* barrier for proper semantics */
-       return _atomic64_xchg_add_unless(v, a, u) != u;
+       return _atomic64_xchg_add_unless(&v->counter, a, u) != u;
 }
 
 /**
@@ -220,7 +153,7 @@ static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
  */
 static inline void atomic64_set(atomic64_t *v, u64 n)
 {
-       _atomic64_xchg(v, n);
+       _atomic64_xchg(&v->counter, n);
 }
 
 #define atomic64_add_negative(a, v)    (atomic64_add_return((a), (v)) < 0)