GLOBAL_ATU_OP_BUSY
#define GLOBAL_ATU_OP_FLUSH_ALL ((1 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_UNLOCKED ((2 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_LOAD_DB ((3 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_GET_NEXT_DB ((4 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_DB ((5 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_UNLOCKED_DB ((6 << 12) | GLOBAL_ATU_OP_BUSY)