rename M_HLVX to prevent clashing with M_FLUSH

[Sh-Anand]

Type of change: bug report

Impact: no functional change

Development Phase: implementation

Release Notes

Renamed the constant M_HLVX from 10000 to 11000 to prevent clashing with M_FLUSH, as isRead would always return true for memory commands with M_FLUSH.

Note: The bug was spotted while working with boom/src/main/scala/lsu/dcache.scala of the BOOM. This prevents M_FLUSH commands from sending a response as s2_send_resp would always evaluate to false.

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[ZenithalHourlyRate]

After inspecting M_HLVX related spec/code, it seems like a mistake instead of an intended clashing.

The order of the constants is also a hint.

Could you make this change against the dev branch? It will be backported to the master branch using mergify.