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Added clean and flush to cache fsm.

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This commit is contained in:
Ross Thompson 2023-08-16 14:23:56 -05:00
parent 5281077531
commit 624b3e3ab2
1 changed files with 2 additions and 1 deletions
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3
src/cache/cachefsm.sv vendored
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@ -120,7 +120,8 @@ module cachefsm import cvw::*; #(parameter cvw_t P,
STATE_READ_HOLD: if(Stall) NextState = STATE_READ_HOLD;
else NextState = STATE_READY;
// exclusion-tag-start: icache case
STATE_WRITEBACK: if(CacheBusAck) NextState = STATE_FETCH;
STATE_WRITEBACK: if(CacheBusAck & (CMop[2] | CMOp[3])) NextState = STATE_READY;
else if(CacheBusAck) NextState = STATE_FETCH;
else NextState = STATE_WRITEBACK;
// eviction needs a delay as the bus fsm does not correctly handle sending the write command at the same time as getting back the bus ack.
STATE_FLUSH: if(LineDirty) NextState = STATE_FLUSH_WRITEBACK;