derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mem-ruby: Fix replacement policy in GPU_VIPER (#1564)

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

Change-Id: I79ad9392593e00425a7fe8828048465b2c2c2e1f
This commit is contained in:
Matt Sinclair
2024-09-17 12:16:09 -05:00
committed by GitHub
parent 3feeb5724f c1fcc0c54a
commit 6d49130b0b
1 changed files with 0 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/mem/ruby/protocol/GPU_VIPER-TCC.sm
View File

@@ -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;