WebSVN – Kolibri OS – Diff – /drivers/include/linux/asm/atomic_32.h

 typedef struct {
 	u64 __aligned(8) counter;
-} atomic64_t;
+} atomic64_t;
 #define ATOMIC64_INIT(val)	{ (val) }
  * @new_val:  value to assign
+ *
  * Atomically xchgs the value of @ptr to @new_val and returns
  * the old value.
  */
-extern u64 atomic64_xchg(atomic64_t *ptr, u64 new_val);
+static inline long long atomic64_xchg(atomic64_t *v, long long n)
+{
+    long long o;
+    unsigned high = (unsigned)(n >> 32);
+    unsigned low = (unsigned)n;
+    asm volatile(
+    "1:                 \n\t"
+    "cmpxchg8b (%%esi)  \n\t"
+    "jnz 1b             \n\t"
+    :"=&A" (o)
+    :"S" (v), "b" (low), "c" (high)
+    : "memory", "cc");
+    return o;
+}
 /**
  * atomic64_set - set atomic64 variable
  * @ptr:      pointer to type atomic64_t
  * @new_val:  value to assign
+ *
  * Atomically sets the value of @ptr to @new_val.
+ */
- */
+static inline void atomic64_set(atomic64_t *v, long long i)
+{
+    unsigned high = (unsigned)(i >> 32);
+    unsigned low = (unsigned)i;
+    asm volatile (
+    "1:                 \n\t"
+    "cmpxchg8b (%%esi)  \n\t"
+    "jnz 1b             \n\t"
+    :
+    :"S" (v), "b" (low), "c" (high)
+    : "eax", "edx", "memory", "cc");
+}
 extern void atomic64_set(atomic64_t *ptr, u64 new_val);
 /**
  * atomic64_read - read atomic64 variable
 		);
 	return res;
-}
+}
 extern u64 atomic64_read(atomic64_t *ptr);
 /**

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