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stm32/mpu: Save and restore the IRQ state when configuring MPU.

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In case IRQs are already disabled during the MPU configuration.

Fixes issue #5152.
This commit is contained in:
Damien George
2019-10-16 23:12:06 +11:00
parent 5954387858
commit 4f2c737b0c
3 changed files with 10 additions and 10 deletions
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8
ports/stm32/mpu.h
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@@ -78,8 +78,8 @@ static inline void mpu_init(void) {
__ISB();
}
static inline void mpu_config_start(void) {
__disable_irq();
static inline uint32_t mpu_config_start(void) {
return disable_irq();
}
static inline void mpu_config_region(uint32_t region, uint32_t base_addr, uint32_t attr_size) {
@@ -88,11 +88,11 @@ static inline void mpu_config_region(uint32_t region, uint32_t base_addr, uint32
MPU->RASR = attr_size;
}
static inline void mpu_config_end(void) {
static inline void mpu_config_end(uint32_t irq_state) {
__ISB();
__DSB();
__DMB();
__enable_irq();
enable_irq(irq_state);
}
#else