nuttx/arch/arm/src/armv8-m/barriers.h
qiaowei 2376d8a266 Porting arch/armv8-m support
1. Add dsp extension; float point based on hardware and software.
2. Delete folder "iar"
3. Add tool chain for cortex-M23 and cortex-M35p

Signed-off-by: qiaowei <qiaowei@xiaomi.com>
Change-Id: I5bfc78abb025adb0ad4fae37e2b444915f477fe7
2020-04-26 07:43:37 -06:00

43 lines
1.8 KiB
C
Executable File

/************************************************************************************
* arch/arm/src/armv8-m/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_ARM_SRC_COMMON_ARMV8_M_BARRIERS_H
#define __ARCH_ARM_SRC_COMMON_ARMV8_M_BARRIERS_H
/************************************************************************************
* Included Files
************************************************************************************/
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* ARMv8-M memory barriers */
#define arm_isb(n) __asm__ __volatile__ ("isb " #n : : : "memory")
#define arm_dsb(n) __asm__ __volatile__ ("dsb " #n : : : "memory")
#define arm_dmb(n) __asm__ __volatile__ ("dmb " #n : : : "memory")
#define ARM_DSB() arm_dsb(15)
#define ARM_ISB() arm_isb(15)
#define ARM_DMB() arm_dmb(15)
#endif /* __ARCH_ARM_SRC_COMMON_ARMV8_M_BARRIERS_H */