odb: read 3dbv header includes and update existing chiplets

Signed-off-by: osamahammad21 <[email protected]>

Author: osamahammad21

src/odb/include/odb/3dblox.h

@@ -37,6 +37,7 @@ class ThreeDBlox
   void createConnection(const Connection& connection);
   dbChipRegionInst* resolvePath(const std::string& path,
                                 std::vector<dbChipInst*>& path_insts);
+  void readHeaderIncludes(const std::vector<std::string>& includes);
 
   utl::Logger* logger_ = nullptr;
   odb::dbDatabase* db_ = nullptr;

src/odb/src/3dblox/3dblox.cpp

@@ -59,6 +59,7 @@ void ThreeDBlox::readDbv(const std::string& dbv_file)
                      dbv_file);
     }
   }
+  readHeaderIncludes(data.header.includes);
   for (const auto& [_, chiplet] : data.chiplet_defs) {
     createChiplet(chiplet);
   }
@@ -68,13 +69,7 @@ void ThreeDBlox::readDbx(const std::string& dbx_file)
 {
   DbxParser parser(logger_);
   DbxData data = parser.parseFile(dbx_file);
-  for (const auto& include : data.header.includes) {
-    if (include.find(".3dbv") != std::string::npos) {
-      readDbv(include);
-    } else if (include.find(".3dbx") != std::string::npos) {
-      readDbx(include);
-    }
-  }
+  readHeaderIncludes(data.header.includes);
   dbChip* chip = createDesignTopChiplet(data.design);
   for (const auto& [_, chip_inst] : data.chiplet_instances) {
     createChipInst(chip_inst);
@@ -86,6 +81,17 @@ void ThreeDBlox::readDbx(const std::string& dbx_file)
   db_->triggerPostRead3Dbx(chip);
 }
 
+void ThreeDBlox::readHeaderIncludes(const std::vector<std::string>& includes)
+{
+  for (const auto& include : includes) {
+    if (include.find(".3dbv") != std::string::npos) {
+      readDbv(include);
+    } else if (include.find(".3dbx") != std::string::npos) {
+      readDbx(include);
+    }
+  }
+}
+
 dbChip::ChipType getChipType(const std::string& type, utl::Logger* logger)
 {
   if (type == "die") {
@@ -141,8 +147,21 @@ void ThreeDBlox::createChiplet(const ChipletDef& chiplet)
     lef_reader.createLib(tech, lib_name.c_str(), lef_file.c_str());
   }
   // TODO: Read liberty files
-  dbChip* chip = dbChip::create(
-      db_, tech, chiplet.name, getChipType(chiplet.type, logger_));
+  // Check if chiplet already exists
+  auto chip = db_->findChip(chiplet.name.c_str());
+  if (chip != nullptr) {
+    if (chip->getChipType() != getChipType(chiplet.type, logger_)
+        || chip->getChipType() != dbChip::ChipType::HIER) {
+      logger_->error(utl::ODB,
+                     530,
+                     "3DBV Parser Error: Chiplet {} already exists",
+                     chiplet.name);
+    }
+    // chiplet already exists, update it
+  } else {
+    chip = dbChip::create(
+        db_, tech, chiplet.name, getChipType(chiplet.type, logger_));
+  }
   // Read DEF file
   if (!chiplet.external.def_file.empty()) {
     odb::defin def_reader(db_, logger_, odb::defin::DEFAULT);