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mem-ruby: Fix replacement policy in GPU_VIPER

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The current GPU_VIPER protocol's TCC cache update the MRU information
twice with calling a_allocateBlock and ut_updateTag which affectgs the
LIP and RRIP replacement polies. Remove ut_updateTag fixes the LIP and
RRIP replacement polies.

Change-Id: I79ad9392593e00425a7fe8828048465b2c2c2e1f
This commit is contained in:
Jarvis Jia
2024-09-14 20:30:48 -05:00
parent 5aa7b1ce3e
commit 9dfd66aca4
1 changed files with 0 additions and 2 deletions
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src/mem/ruby/protocol/GPU_VIPER-TCC.sm
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@@ -1162,7 +1162,6 @@ machine(MachineType:TCC, "TCC Cache")
transition(I, WrVicBlkBack, W) {TagArrayRead, TagArrayWrite, DataArrayWrite} {
p_profileMiss;
a_allocateBlock;
ut_updateTag;
swb_sendWBAck;
wdb_writeDirtyBytes;
p_popRequestQueue;
@@ -1257,7 +1256,6 @@ machine(MachineType:TCC, "TCC Cache")
transition(IV, Data, V) {TagArrayRead, TagArrayWrite, DataArrayWrite} {
a_allocateBlock;
ut_updateTag;
wcb_writeCacheBlock;
sdr_sendDataResponse;
wada_wakeUpAllDependentsAddr;