PVC WAR dependence WA

WAR localization and apply WA only to BB local
intel · Aug 30, 2024 · dbad589 · dbad589
1 parent ba1357c
commit dbad589
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Showing 6 changed files with 423 additions and 46 deletions.
diff --git a/IGC/Compiler/CISACodeGen/CISABuilder.cpp b/IGC/Compiler/CISACodeGen/CISABuilder.cpp
@@ -5039,6 +5039,11 @@ namespace IGC
             SaveOption(vISA_SWSBMakeLocalWAR, true);
         }
 
+        if (IGC_IS_FLAG_ENABLED(PVCSendWARWA))
+        {
+            SaveOption(vISA_PVCSendWARWA, true);
+        }
+
         if (IGC_IS_FLAG_ENABLED(SWSBReplaceARWithAW))
         {
             SaveOption(vISA_SWSBReplaceARWithAW, true);

diff --git a/IGC/common/igc_flags.h b/IGC/common/igc_flags.h
@@ -74,6 +74,7 @@ DECLARE_IGC_REGKEY(bool, EnableForceDebugSWSB,          false, "Enable force deb
 DECLARE_IGC_REGKEY(DWORD,EnableSWSBInstStall,           0,     "Enable force stall to specific(start) instruction start for software scoreboard generation", true)
 DECLARE_IGC_REGKEY(DWORD,EnableSWSBInstStallEnd,        0,     "Enable force stall to end instruction for software scoreboard generation", true)
 DECLARE_IGC_REGKEY(bool, SWSBMakeLocalWAR,              false, "make WAR SBID dependence tracking BB local",  true)
+DECLARE_IGC_REGKEY(bool, PVCSendWARWA,                  false, "enable PVC send WAR WA",  true)
 DECLARE_IGC_REGKEY(DWORD,WARSWSBLocalStart,             0,     "WAR localization start BB", true)
 DECLARE_IGC_REGKEY(DWORD,WARSWSBLocalEnd,               0,     "WAR localization end BB", true)
 DECLARE_IGC_REGKEY(bool, SWSBReplaceARWithAW,           false, "replace .src with .dst",  true)

diff --git a/visa/HWCaps.inc b/visa/HWCaps.inc
@@ -835,6 +835,18 @@ bool WARLocalization() const {
   if (getOption(vISA_SWSBMakeLocalWAR) && (getPlatform() >= Xe2)) {
     return true;
   }
+
+  return false;
+}
+
+bool hasPVCSendWARWA() const {
+  return getPlatform() == Xe_PVC;
+}
+
+bool PVCSendWARWA() const {
+  if (getOption(vISA_PVCSendWARWA) && getPlatform() == Xe_PVC) {
+    return true;
+  }
   return false;
 }