2019-03-19 20:20:23 +01:00
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/************************************************************************************
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* arch/arm/src/armv7-r/barriers.h
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_COMMON_ARMV7_R_BARRIERS_H
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#define __ARCH_ARM_SRC_COMMON_ARMV7_R_BARRIERS_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* ARMv7-R memory barriers */
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#define arm_isb(n) __asm__ __volatile__ ("isb " #n : : : "memory")
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#define arm_dsb(n) __asm__ __volatile__ ("dsb " #n : : : "memory")
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#define arm_dmb(n) __asm__ __volatile__ ("dmb " #n : : : "memory")
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#define ARM_DSB() arm_dsb(15)
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#define ARM_ISB() arm_isb(15)
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#define ARM_DMB() arm_dmb(15)
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2020-01-31 19:07:39 +01:00
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#endif /* __ARCH_ARM_SRC_COMMON_ARMV7_R_BARRIERS_H */
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