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Diffstat (limited to 'include/asm-s390/atomic.h')
-rw-r--r--include/asm-s390/atomic.h120
1 files changed, 92 insertions, 28 deletions
diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h
index 399bf02894d..af20c746248 100644
--- a/include/asm-s390/atomic.h
+++ b/include/asm-s390/atomic.h
@@ -30,20 +30,43 @@ typedef struct {
#ifdef __KERNEL__
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
#define __CS_LOOP(ptr, op_val, op_string) ({ \
typeof(ptr->counter) old_val, new_val; \
- __asm__ __volatile__(" l %0,0(%3)\n" \
- "0: lr %1,%0\n" \
- op_string " %1,%4\n" \
- " cs %0,%1,0(%3)\n" \
- " jl 0b" \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (((atomic_t *)(ptr))->counter) \
- : "a" (ptr), "d" (op_val), \
- "m" (((atomic_t *)(ptr))->counter) \
- : "cc", "memory" ); \
+ asm volatile( \
+ " l %0,%2\n" \
+ "0: lr %1,%0\n" \
+ op_string " %1,%3\n" \
+ " cs %0,%1,%2\n" \
+ " jl 0b" \
+ : "=&d" (old_val), "=&d" (new_val), \
+ "=Q" (((atomic_t *)(ptr))->counter) \
+ : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \
+ : "cc", "memory"); \
new_val; \
})
+
+#else /* __GNUC__ */
+
+#define __CS_LOOP(ptr, op_val, op_string) ({ \
+ typeof(ptr->counter) old_val, new_val; \
+ asm volatile( \
+ " l %0,0(%3)\n" \
+ "0: lr %1,%0\n" \
+ op_string " %1,%4\n" \
+ " cs %0,%1,0(%3)\n" \
+ " jl 0b" \
+ : "=&d" (old_val), "=&d" (new_val), \
+ "=m" (((atomic_t *)(ptr))->counter) \
+ : "a" (ptr), "d" (op_val), \
+ "m" (((atomic_t *)(ptr))->counter) \
+ : "cc", "memory"); \
+ new_val; \
+})
+
+#endif /* __GNUC__ */
+
#define atomic_read(v) ((v)->counter)
#define atomic_set(v,i) (((v)->counter) = (i))
@@ -81,10 +104,19 @@ static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v)
static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
{
- __asm__ __volatile__(" cs %0,%3,0(%2)\n"
- : "+d" (old), "=m" (v->counter)
- : "a" (v), "d" (new), "m" (v->counter)
- : "cc", "memory" );
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+ asm volatile(
+ " cs %0,%2,%1"
+ : "+d" (old), "=Q" (v->counter)
+ : "d" (new), "Q" (v->counter)
+ : "cc", "memory");
+#else /* __GNUC__ */
+ asm volatile(
+ " cs %0,%3,0(%2)"
+ : "+d" (old), "=m" (v->counter)
+ : "a" (v), "d" (new), "m" (v->counter)
+ : "cc", "memory");
+#endif /* __GNUC__ */
return old;
}
@@ -113,20 +145,43 @@ typedef struct {
} __attribute__ ((aligned (8))) atomic64_t;
#define ATOMIC64_INIT(i) { (i) }
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
#define __CSG_LOOP(ptr, op_val, op_string) ({ \
typeof(ptr->counter) old_val, new_val; \
- __asm__ __volatile__(" lg %0,0(%3)\n" \
- "0: lgr %1,%0\n" \
- op_string " %1,%4\n" \
- " csg %0,%1,0(%3)\n" \
- " jl 0b" \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (((atomic_t *)(ptr))->counter) \
- : "a" (ptr), "d" (op_val), \
- "m" (((atomic_t *)(ptr))->counter) \
- : "cc", "memory" ); \
+ asm volatile( \
+ " lg %0,%2\n" \
+ "0: lgr %1,%0\n" \
+ op_string " %1,%3\n" \
+ " csg %0,%1,%2\n" \
+ " jl 0b" \
+ : "=&d" (old_val), "=&d" (new_val), \
+ "=Q" (((atomic_t *)(ptr))->counter) \
+ : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \
+ : "cc", "memory" ); \
new_val; \
})
+
+#else /* __GNUC__ */
+
+#define __CSG_LOOP(ptr, op_val, op_string) ({ \
+ typeof(ptr->counter) old_val, new_val; \
+ asm volatile( \
+ " lg %0,0(%3)\n" \
+ "0: lgr %1,%0\n" \
+ op_string " %1,%4\n" \
+ " csg %0,%1,0(%3)\n" \
+ " jl 0b" \
+ : "=&d" (old_val), "=&d" (new_val), \
+ "=m" (((atomic_t *)(ptr))->counter) \
+ : "a" (ptr), "d" (op_val), \
+ "m" (((atomic_t *)(ptr))->counter) \
+ : "cc", "memory" ); \
+ new_val; \
+})
+
+#endif /* __GNUC__ */
+
#define atomic64_read(v) ((v)->counter)
#define atomic64_set(v,i) (((v)->counter) = (i))
@@ -163,10 +218,19 @@ static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
long long old, long long new)
{
- __asm__ __volatile__(" csg %0,%3,0(%2)\n"
- : "+d" (old), "=m" (v->counter)
- : "a" (v), "d" (new), "m" (v->counter)
- : "cc", "memory" );
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+ asm volatile(
+ " csg %0,%2,%1"
+ : "+d" (old), "=Q" (v->counter)
+ : "d" (new), "Q" (v->counter)
+ : "cc", "memory");
+#else /* __GNUC__ */
+ asm volatile(
+ " csg %0,%3,0(%2)"
+ : "+d" (old), "=m" (v->counter)
+ : "a" (v), "d" (new), "m" (v->counter)
+ : "cc", "memory");
+#endif /* __GNUC__ */
return old;
}