pmc_ssram_state
smp_store_release(&pmc_ssram_state[pmc_idx], PMC_SSRAM_ABSENT);
smp_store_release(&pmc_ssram_state[pmc_idx], PMC_SSRAM_PRESENT);
WRITE_ONCE(pmc_ssram_state[bit], PMC_SSRAM_PROBING);
enum pmc_ssram_state state;
state = smp_load_acquire(&pmc_ssram_state[pmc_idx]);
static enum pmc_ssram_state pmc_ssram_state[MAX_NUM_PMC];