}
#endif
+/**
+ * Atomic exchange.
+ *
+ * (atomic) equivalent to:
+ * ret = *dst
+ * *dst = val;
+ * return ret;
+ *
+ * @param dst
+ * The destination location into which the value will be written.
+ * @param val
+ * The new value.
+ * @return
+ * The original value at that location
+ */
+static inline uint16_t
+rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline uint16_t
+rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val)
+{
+#if defined(__clang__)
+ return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
+#else
+ return __atomic_exchange_2(dst, val, __ATOMIC_SEQ_CST);
+#endif
+}
+#endif
+
/**
* The atomic counter structure.
*/
}
#endif
+/**
+ * Atomic exchange.
+ *
+ * (atomic) equivalent to:
+ * ret = *dst
+ * *dst = val;
+ * return ret;
+ *
+ * @param dst
+ * The destination location into which the value will be written.
+ * @param val
+ * The new value.
+ * @return
+ * The original value at that location
+ */
+static inline uint32_t
+rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline uint32_t
+rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val)
+{
+#if defined(__clang__)
+ return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
+#else
+ return __atomic_exchange_4(dst, val, __ATOMIC_SEQ_CST);
+#endif
+}
+#endif
+
/**
* The atomic counter structure.
*/
}
#endif
+/**
+ * Atomic exchange.
+ *
+ * (atomic) equivalent to:
+ * ret = *dst
+ * *dst = val;
+ * return ret;
+ *
+ * @param dst
+ * The destination location into which the value will be written.
+ * @param val
+ * The new value.
+ * @return
+ * The original value at that location
+ */
+static inline uint64_t
+rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline uint64_t
+rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val)
+{
+#if defined(__clang__)
+ return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
+#else
+ return __atomic_exchange_8(dst, val, __ATOMIC_SEQ_CST);
+#endif
+}
+#endif
+
/**
* The atomic counter structure.
*/