snb_pcode_write
snb_pcode_write(llc_to_gt(llc)->uncore, GEN6_PCODE_WRITE_MIN_FREQ_TABLE,
ret = snb_pcode_write(rc6_to_gt(rc6)->uncore, GEN6_PCODE_WRITE_RC6VIDS, rc6vids);
err = snb_pcode_write(uncore, mbox, val);