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c55954d56c
This commit added linux-style UP_RMB() and UP_WMB(). Signed-off-by: hujun5 <hujun5@xiaomi.com>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/****************************************************************************
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* arch/arm64/include/barriers.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef ___ARCH_ARM64_INCLUDE_BARRIERS_H
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#define ___ARCH_ARM64_INCLUDE_BARRIERS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* See Arm® Architecture Reference Manual
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* ARM DDI 0487E.a C6.2.81
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*/
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#define UP_DSB() asm volatile ("dsb sy" : : : "memory");
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#define UP_DMB() asm volatile ("dmb sy" : : : "memory")
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#define UP_RMB() asm volatile ("dmb ishld" : : : "memory")
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#define UP_WMB() asm volatile ("dmb ishst" : : : "memory")
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/* See Arm® Architecture Reference Manual
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* ARM DDI 0487E.a C6.2.79
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*/
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/* See Arm® Architecture Reference Manual
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* ARM DDI 0487E.a C6.2.96
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*/
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#define UP_ISB() __asm__ volatile ("isb" : : : "memory");
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#define UP_MB() \
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do \
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{ \
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UP_DSB(); \
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UP_ISB(); \
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} \
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while (0)
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#endif /* __ASSEMBLY__ */
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#endif /* ___ARCH_ARM64_INCLUDE_BARRIERS_H */
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