CHA_ID_LS_AES_MASK
aes_vid = cha_vid & CHA_ID_LS_AES_MASK;
aes_inst = cha_inst & CHA_ID_LS_AES_MASK;
aes_rn = rd_reg32(&perfmon->cha_rev_ls) & CHA_ID_LS_AES_MASK;
aes_vid = cha_vid & CHA_ID_LS_AES_MASK;
aes_inst = cha_inst & CHA_ID_LS_AES_MASK;
(rd_reg32(&perfmon->cha_num_ls) & CHA_ID_LS_AES_MASK);