smart-green-house/rtt-uart-nb/rt-thread/libcpu/risc-v/nuclei/cpuport.h

41 lines
1.2 KiB
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
* Copyright (c) 2019-Present Nuclei Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020/03/26 hqfang Nuclei RISC-V Core porting code.
*/
#ifndef __CPUPORT_H__
#define __CPUPORT_H__
#include <rtconfig.h>
#include <nuclei_sdk_soc.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Scheduler utilities. */
#define RT_YIELD() \
{ \
/* Set a software interrupt(SWI) request to request a context switch. */ \
SysTimer_SetSWIRQ(); \
/* Barriers are normally not required but do ensure the code is completely \
within the specified behaviour for the architecture. */ \
__RWMB(); \
__FENCE_I(); \
}
extern void rt_hw_ticksetup(void);
extern void rt_hw_taskswitch(void);
#ifdef __cplusplus
}
#endif
#endif