thread_arch.h

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/*
 * Copyright (C) 2021 Koen Zandberg <koen@bergzand.net>
 *               2021 Inria
 *
 * This file is subject to the terms and conditions of the GNU Lesser General
 * Public License v2.1. See the file LICENSE in the top level directory for more
 * details.
 */
 
#ifndef THREAD_ARCH_H
#define THREAD_ARCH_H
 
#include "cpu_conf.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define THREAD_API_INLINED
 
#ifndef DOXYGEN /* Doxygen is in core/include/thread.h */
 
static inline __attribute__((always_inline)) void thread_yield_higher(void)
{
    /* trigger the PENDSV interrupt to run scheduler and schedule new thread if
     * applicable */
    SCB->ICSR = SCB_ICSR_PENDSVSET_Msk;
    /* flush the pipeline. Otherwise we risk that subsequent instructions are
     * executed before the IRQ has actually triggered */
    __ISB();
}
 
#endif /* DOXYGEN */
 
#ifdef __cplusplus
}
#endif
 
#endif /* THREAD_ARCH_H */