return res;
}
+static inline uint16_t
+rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val)
+{
+ asm volatile(
+ MPLOCKED
+ "xchgw %0, %1;"
+ : "=r" (val), "=m" (*dst)
+ : "0" (val), "m" (*dst)
+ : "memory"); /* no-clobber list */
+ return val;
+}
+
static inline int rte_atomic16_test_and_set(rte_atomic16_t *v)
{
return rte_atomic16_cmpset((volatile uint16_t *)&v->cnt, 0, 1);
return res;
}
+static inline uint32_t
+rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val)
+{
+ asm volatile(
+ MPLOCKED
+ "xchgl %0, %1;"
+ : "=r" (val), "=m" (*dst)
+ : "0" (val), "m" (*dst)
+ : "memory"); /* no-clobber list */
+ return val;
+}
+
static inline int rte_atomic32_test_and_set(rte_atomic32_t *v)
{
return rte_atomic32_cmpset((volatile uint32_t *)&v->cnt, 0, 1);