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🐛 Fix problem with flushing the PTW

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This commit is contained in:
Florian Zaruba 2017-09-05 12:44:20 +02:00
parent 7b631fef91
commit 95e36dc3e2
1 changed files with 2 additions and 5 deletions
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7
src/ptw.sv
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@ -313,13 +313,10 @@ module ptw #(
// -------
// should we have flushed before we got an rvalid, wait for it until going back to IDLE
if (flush_i) begin
// check if we are walking a store, if not then go back to IDLE because
// all other operations are speculative
// on a flush check whether we are waiting for a grant, if so: wait for it
// if not go back to idle
if ((CS == WAIT_GRANT) && data_gnt_i)
NS = WAIT_RVALID;
// keep the state if we are serving a store
else if (flush_i && lsu_is_store_i)
NS = CS;
else
NS = IDLE;
end