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More cleanup.

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This commit is contained in:
Rose Thompson 2023-11-21 00:14:59 -06:00
parent d2a747bf3d
commit 1d811b085c
1 changed files with 3 additions and 7 deletions
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10
src/cache/cachefsm.sv vendored
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@ -171,13 +171,9 @@ module cachefsm import cvw::*; #(parameter cvw_t P,
(CurrState == STATE_FLUSH & LineDirty) | // This is wrong in a multicore snoop cache protocal. Dirty must be cleared concurrently and atomically with writeback. For single core cannot clear after writeback on bus ack and change flushadr. Clears the wrong set.
// Flush and eviction controls
(P.ZICBOM_SUPPORTED & CurrState == STATE_WRITEBACK & (CMOp[1] | CMOp[2]) & CacheBusAck);
assign SelWay = (CurrState == STATE_WRITEBACK & ~CacheBusAck & ~(CMOp[1] | CMOp[2])) |
(CurrState == STATE_READY & AnyMiss & LineDirty) |
(CurrState == STATE_WRITE_LINE) |
// This is almost the same as setvalid, but on cachehit we don't want to select
// the nonhit way, but instead want to force this to zero
(P.ZICBOZ_SUPPORTED & CurrState == STATE_READY & CMOZeroNoEviction & ~CacheHit) |
(P.ZICBOZ_SUPPORTED & CurrState == STATE_WRITEBACK & CacheBusAck & CMOp[3]);
assign SelWay = (CurrState == STATE_WRITEBACK & ((~CacheBusAck & ~(CMOp[1] | CMOp[2])) | (P.ZICBOZ_SUPPORTED & CacheBusAck & CMOp[3]))) |
(CurrState == STATE_READY & ((AnyMiss & LineDirty) | (P.ZICBOZ_SUPPORTED & CMOZeroNoEviction & ~CacheHit))) |
(CurrState == STATE_WRITE_LINE);
assign ZeroCacheLine = P.ZICBOZ_SUPPORTED & ((CurrState == STATE_READY & CMOZeroNoEviction) |
(CurrState == STATE_WRITEBACK & (CMOp[3] & CacheBusAck)));
assign SelWriteback = (CurrState == STATE_WRITEBACK & (CMOp[1] | CMOp[2] | ~CacheBusAck)) |