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added memory clobber to prevent memory reordering

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This commit is contained in:
gullradriel
2024-12-18 17:01:18 +01:00
parent 039ab0de46
commit 9bdf731fc0
1 changed files with 2 additions and 2 deletions
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4
firmware/common/locking.h
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@ -40,14 +40,14 @@
#else
static inline uint32_t load_exclusive(volatile uint32_t* addr)
{
__asm volatile("cpsid i");
__asm volatile("cpsid i" ::: "memory");
return *addr;
}
static inline uint32_t store_exclusive(uint32_t val, volatile uint32_t* addr)
{
*addr = val;
__asm volatile("cpsie i");
__asm volatile("cpsie i" ::: "memory");
return 0;
}
#endif