[dv] Add hyperram memory area to verilator simulation

lowRISC · Aug 30, 2024 · 1abbb1b · 1abbb1b
1 parent 6a547d4
commit 1abbb1b
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Showing 3 changed files with 12 additions and 4 deletions.
diff --git a/dv/verilator/sonata_system.cc b/dv/verilator/sonata_system.cc
@@ -13,8 +13,10 @@
 #include "verilator_memutil.h"
 #include "verilator_sim_ctrl.h"
 
-SonataSystem::SonataSystem(const char *ram_hier_path, int ram_size_words)
-    : _ram(ram_hier_path, ram_size_words, 4) {}
+SonataSystem::SonataSystem(const char *ram_hier_path, int ram_size_words,
+  const char *hyperram_hier_path, int hyperram_size_words)
+    : _ram(ram_hier_path, ram_size_words, 4),
+      _hyperram(hyperram_hier_path, hyperram_size_words, 4) {}
 
 int SonataSystem::Main(int argc, char **argv) {
   bool exit_app;
@@ -40,6 +42,7 @@ int SonataSystem::Setup(int argc, char **argv, bool &exit_app) {
                  VerilatorSimCtrlFlags::ResetPolarityNegative);
 
   _memutil.RegisterMemoryArea("ram", 0x100000, &_ram);
+  _memutil.RegisterMemoryArea("hyperram", 0x40000000, &_hyperram);
   simctrl.RegisterExtension(&_memutil);
 
   exit_app = false;

diff --git a/dv/verilator/sonata_system.h b/dv/verilator/sonata_system.h
@@ -7,7 +7,8 @@
 
 class SonataSystem {
  public:
-  SonataSystem(const char *ram_hier_path, int ram_size_words);
+  SonataSystem(const char *ram_hier_path, int ram_size_words,
+    const char *hyperram_hier_path, int hyperram_size_words);
   virtual ~SonataSystem() {}
   virtual int Main(int argc, char **argv);
 
@@ -16,6 +17,7 @@ class SonataSystem {
   top_verilator _top;
   VerilatorMemUtil _memutil;
   MemArea _ram;
+  MemArea _hyperram;
 
   virtual int Setup(int argc, char **argv, bool &exit_app);
   virtual void Run();

diff --git a/dv/verilator/sonata_system_main.cc b/dv/verilator/sonata_system_main.cc
@@ -7,7 +7,10 @@
 int main(int argc, char **argv) {
   SonataSystem sonata_system(
       "TOP.top_verilator.u_sonata_system.u_sram_top.u_ram.gen_generic.u_impl_generic",
-      1024 * 1024);
+      32 * 1024, // 32k words = 128 KiB
+      "TOP.top_verilator.u_sonata_system.g_hyperram.u_hyperram.u_hyperram_model.u_ram.gen_generic.u_impl_generic",
+      256 * 1024 // 256k words = 1 MiB
+  );
 
   return sonata_system.Main(argc, argv);
 }