He made his mind to travel to Kunming.
= He (decided/determined to) travel to Kunming.
= He (made a decision to) travel to Kunming.
= He (was determinded to) travel to Kunming.
注：make up one's mind to do sth“下定决心/决定去做某事”
而decide to do sth = make a dicision to do sth“决定去做某事”；
determine to do sth = be determined to do sth“下定决心去做某事”.