2 // Copyright (c) 2017 Intel Corporation
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
18 #include <xmmintrin.h>
27 while (__atomic_exchange_n
28 (&mutex_val, 1, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE))
35 __atomic_store_n(&mutex_val, 0,
36 __ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE);
40 int is_hle_locked(void)
42 return (mutex_val == 0) ? FALSE : TRUE;