1. A translation unit comprising: a translation lookaside buffer (TLB) configured to store a plurality of address translations; a miss queue coupled to the TLB and configured to store received address translation requests that missed in the TLB, wherein the miss queue includes a plurality of entries, wherein at least some of the plurality of entries are each configured to store a respective address translation request and a corresponding identifier, wherein the corresponding identifier of a given entry identifies another entry in the miss queue that stores another respective address translation request having a process ordering constraint that is the same as a process ordering constraint of the respective address translation request in the given entry; and a control unit coupled to the miss queue and configured to process the received address translation requests, wherein the control unit is configured to process each respective address translation request in an order that depends upon the identifier of each respective address translation request.