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