fix: compute the refillFifoDepth according to cacheline and NoC width (#2999)

* fix: compute the refillFifoDepth according to cacheline and mem data width

* Update report_benchmark.py

* Update report_benchmark.py

---------

Co-authored-by: JeanRochCoulon <jean-roch.coulon@thalesgroup.com>
Co-authored-by: khandelwaltanuj <158037163+khandelwaltanuj@users.noreply.github.com>

Author: 3 people

.gitlab-ci/scripts/report_benchmark.py

@@ -19,12 +19,12 @@
 # Keep it up-to-date with compiler version and core performance improvements
 # Will fail if the number of cycles is different from this one
 valid_cycles = {
-    "dhrystone_dual": 17159,
-    "dhrystone_single": 22407,
+    "dhrystone_dual": 16724,
+    "dhrystone_single": 22256,
     "coremark_dual": 981777,
     "coremark_single": 1294524,
-    "dhrystone_cv32a65x": 28825,
-    "dhrystone_cv32a60x": 36631,
+    "dhrystone_cv32a65x": 28822,
+    "dhrystone_cv32a60x": 36629,
 }
 
 for arg in sys.argv[1:]:

core/cache_subsystem/cva6_hpdcache_subsystem.sv

@@ -204,15 +204,15 @@ module cva6_hpdcache_subsystem
     userCfg.dataWaysPerRamWord = __minu(CVA6Cfg.DCACHE_SET_ASSOC, 128 / CVA6Cfg.XLEN);
     userCfg.dataSetsPerRam = CVA6Cfg.DCACHE_NUM_WORDS;
     userCfg.dataRamByteEnable = 1'b1;
-    userCfg.accessWords = __maxu(CVA6Cfg.AxiDataWidth / CVA6Cfg.XLEN, 1  /*reqWords*/);
+    userCfg.accessWords = __maxu(CVA6Cfg.AxiDataWidth / CVA6Cfg.XLEN, userCfg.reqWords);
     userCfg.mshrSets = CVA6Cfg.NrLoadBufEntries < 16 ? 1 : CVA6Cfg.NrLoadBufEntries / 2;
     userCfg.mshrWays = CVA6Cfg.NrLoadBufEntries < 16 ? CVA6Cfg.NrLoadBufEntries : 2;
     userCfg.mshrWaysPerRamWord = CVA6Cfg.NrLoadBufEntries < 16 ? CVA6Cfg.NrLoadBufEntries : 2;
     userCfg.mshrSetsPerRam = CVA6Cfg.NrLoadBufEntries < 16 ? 1 : CVA6Cfg.NrLoadBufEntries / 2;
     userCfg.mshrRamByteEnable = 1'b1;
     userCfg.mshrUseRegbank = (CVA6Cfg.NrLoadBufEntries < 16);
     userCfg.refillCoreRspFeedthrough = 1'b1;
-    userCfg.refillFifoDepth = 2;
+    userCfg.refillFifoDepth = 2 * (CVA6Cfg.DCACHE_LINE_WIDTH / CVA6Cfg.AxiDataWidth);
     userCfg.wbufDirEntries = CVA6Cfg.WtDcacheWbufDepth;
     userCfg.wbufDataEntries = CVA6Cfg.WtDcacheWbufDepth;
     userCfg.wbufWords = 1;