PERF_MEM_LVL_NA
data_src->mem_lvl = PERF_MEM_LVL_NA;
data_src->mem_lvl = PERF_MEM_LVL_NA;
data_src->mem_lvl = PERF_MEM_LVL_NA;
lvl &= ~(PERF_MEM_LVL_NA | PERF_MEM_LVL_HIT | PERF_MEM_LVL_MISS);
data_src_l.mem_lvl = PERF_MEM_LVL_NA;
data_src_r.mem_lvl = PERF_MEM_LVL_NA;