arch/arm/src/armv7-r/barriers.h

/****************************************************************************
 * arch/arm/src/armv7-r/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
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing, software
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#ifndef __ARCH_ARM_SRC_ARMV7_R_BARRIERS_H
#define __ARCH_ARM_SRC_ARMV7_R_BARRIERS_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* ARMv7-R memory barriers */

#define arm_dsb(n) __asm__ __volatile__ ("dsb " #n : : : "memory")
#define arm_dmb(n) __asm__ __volatile__ ("dmb " #n : : : "memory")
#define arm_isb()  __asm__ __volatile__ ("isb " : : : "memory")
#define arm_nop()  __asm__ __volatile__ ("nop\n")
#define arm_sev()  __asm__ __volatile__ ("sev\n")

#define ARM_DSB()  arm_dsb(15)
#define ARM_DMB()  arm_dmb(15)
#define ARM_ISB()  arm_isb()
#define ARM_NOP()  arm_nop()
#define ARM_SEV()  arm_sev()

#endif /* __ARCH_ARM_SRC_ARMV7_R_BARRIERS_H */