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arch/arm/rp23xx: Set priority for svcall exception

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Fixes https://github.com/apache/nuttx/issues/15503.

Signed-off-by: Ian Douglas Scott <ian@iandouglasscott.com>
This commit is contained in:
Ian Douglas Scott 2025-01-12 20:18:55 -08:00 • committed by Xiang Xiao
parent 5f4a15b690
commit 351db57e35
1 changed files with 23 additions and 0 deletions
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23
arch/arm/src/rp23xx/rp23xx_irq.c
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@ -181,6 +181,27 @@ static int rp23xx_reserved(int irq, void *context, void *arg)
}
#endif
/****************************************************************************
* Name: rp23xx_prioritize_syscall
*
* Description:
* Set the priority of an exception. This function may be needed
* internally even if support for prioritized interrupts is not enabled.
*
****************************************************************************/
static inline void rp23xx_prioritize_syscall(int priority)
{
uint32_t regval;
/* SVCALL is system handler 11 */
regval = getreg32(NVIC_SYSH8_11_PRIORITY);
regval &= ~NVIC_SYSH_PRIORITY_PR11_MASK;
regval |= (priority << NVIC_SYSH_PRIORITY_PR11_SHIFT);
putreg32(regval, NVIC_SYSH8_11_PRIORITY);
}
/****************************************************************************
* Name: rp23xx_clrpend
*
@ -276,6 +297,8 @@ void up_irqinitialize(void)
irq_attach(RP23XX_IRQ_SVCALL, arm_svcall, NULL);
irq_attach(RP23XX_IRQ_HARDFAULT, arm_hardfault, NULL);
rp23xx_prioritize_syscall(NVIC_SYSH_SVCALL_PRIORITY);
/* Attach all other processor exceptions (except reset and sys tick) */
#ifdef CONFIG_DEBUG_FEATURES