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cpu/cortexm_common: Inline thread_yield_higher function

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This commit is contained in:
Koen Zandberg 2021-01-18 17:08:58 +01:00
parent 0d43c96ac7
commit 0129e73ec0
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GPG Key ID: 0895A893E6D2985B
2 changed files with 49 additions and 10 deletions
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49
cpu/cortexm_common/include/thread_arch.h Normal file
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@ -0,0 +1,49 @@
/*
* 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.
*/
/**
* @ingroup cpu_cortexm_common
* @{
*
* @file
* @brief Implementation of the kernels thread interface
*
* @author Koen Zandberg <koen@bergzand.net>
*
* @}
*/
#ifndef THREAD_ARCH_H
#define THREAD_ARCH_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 */
/** @} */

10
cpu/cortexm_common/thread_arch.c
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@ -296,16 +296,6 @@ void NORETURN cpu_switch_context_exit(void)
UNREACHABLE();
}
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();
}
#if CPU_CORE_CORTEXM_FULL_THUMB
void __attribute__((naked)) __attribute__((used)) isr_pendsv(void) {
__asm__ volatile (