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arch/stm32h7/dualcore: don't use stm32_hsem interface for cores synchronisation 

stm32_hsem functions can use debug messages but cores synchronisation is done when
the OS is not yet fully initialized
This commit is contained in:
raiden00pl 2023-09-21 14:09:56 +02:00 committed by Xiang Xiao
parent 0e01836f09
commit 8833501084
1 changed files with 22 additions and 3 deletions
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25
arch/arm/src/stm32h7/stm32_dualcore.c
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@ -31,7 +31,6 @@
#include "arm_internal.h"
#include "stm32_dualcore.h"
#include "stm32_hsem.h"
/****************************************************************************
* Pre-processor Definitions
@ -77,6 +76,16 @@ static bool stm32_cm4_boot(void)
#endif
#ifdef CONFIG_ARCH_CHIP_STM32H7_CORTEXM4
/****************************************************************************
* Name: stm32_cm4_busywait_lock_sem
****************************************************************************/
void stm32_cm4_busywait_lock_sem(uint8_t id)
{
while ((getreg32(STM32_HSEM_RX(id)) & HSEM_SEMX_LOCK) == 0);
}
/****************************************************************************
* Name: stm32_cpu2sem_wait
****************************************************************************/
@ -89,13 +98,23 @@ static void stm32_cpu2sem_wait(void)
/* Wait for CPU1 */
stm32_hsem_busywait_lock(CPU2_HOLD_HSEM);
stm32_cm4_busywait_lock_sem(CPU2_HOLD_HSEM);
}
#endif
#if defined(CONFIG_ARCH_CHIP_STM32H7_CORTEXM7) && \
defined(CONFIG_STM32H7_CORTEXM4_ENABLED)
/****************************************************************************
* Name: stm32_cm7_take_sem
****************************************************************************/
static bool stm32_cm7_take_sem(uint8_t id)
{
return (getreg32(STM32_HSEM_RLRX(id)) ==
((HSEM_COREID_CPU1 << HSEM_SEMX_COREID_SHIFT) | HSEM_SEMX_LOCK));
}
/****************************************************************************
* Name: stm32_cpu2sem_take
****************************************************************************/
@ -104,7 +123,7 @@ static void stm32_cpu2sem_take(void)
{
/* Take semaphore */
while (stm32_hsem_take(CPU2_HOLD_HSEM) == 0);
while (stm32_cm7_take_sem(CPU2_HOLD_HSEM) == 0);
}
#endif