walnux/arch/x86_64/include/barriers.h
lipengfei28 e39cb350f1 arch/x86_64:use UP_DSB, UP_DMB, UP_ISB as barrier standard API
Signed-off-by: lipengfei28 <lipengfei28@xiaomi.com>
2025-01-20 20:13:07 +08:00

31 lines
1.4 KiB
C

/****************************************************************************
* arch/x86_64/include/barriers.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifndef __ARCH_X86_64_INCLUDE_BARRIERS_H
#define __ARCH_X86_64_INCLUDE_BARRIERS_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define UP_DSB() __asm__ __volatile__ ("mfence")
#define UP_DMB() __asm__ __volatile__ ("mfence")
#endif /* __ARCH_X86_64_INCLUDE_BARRIERS_H */