Update the Memtester, commit a config file/test for it.

[gem5.git] / src / sim / system.cc

diff --git a/src/sim/system.cc b/src/sim/system.cc
index 89e7b8542b2c2d99ba2c638ff1db199bd59f7424..11ae492b99c36976ecca019a8f57ac262aeae018 100644 (file)
--- a/src/sim/system.cc
+++ b/src/sim/system.cc
@@ -63,7 +63,7 @@ System::System(Params *p)
 #else
       page_ptr(0),
 #endif
-      _params(p)
+      memoryMode(p->mem_mode), _params(p)
 {
     // add self to global system list
     systemList.push_back(this);
@@ -143,6 +143,14 @@ int rgdb_wait = -1;
 
 #endif // FULL_SYSTEM
 
+
+void
+System::setMemoryMode(MemoryMode mode)
+{
+    assert(getState() == Drained);
+    memoryMode = mode;
+}
+
 int
 System::registerThreadContext(ThreadContext *tc, int id)
 {
@@ -211,6 +219,8 @@ System::new_page()
 {
     Addr return_addr = page_ptr << LogVMPageSize;
     ++page_ptr;
+    if (return_addr >= physmem->size())
+        fatal("Out of memory, please increase size of physical memory.");
     return return_addr;
 }
 #endif
@@ -249,6 +259,9 @@ printSystems()
     System::printSystems();
 }
 
+const char *System::MemoryModeStrings[3] = {"invalid", "atomic",
+    "timing"};
+
 #if FULL_SYSTEM
 
 // In full system mode, only derived classes (e.g. AlphaLinuxSystem)
@@ -261,12 +274,15 @@ DEFINE_SIM_OBJECT_CLASS_NAME("System", System)
 BEGIN_DECLARE_SIM_OBJECT_PARAMS(System)
 
     SimObjectParam<PhysicalMemory *> physmem;
+    SimpleEnumParam<System::MemoryMode> mem_mode;
 
 END_DECLARE_SIM_OBJECT_PARAMS(System)
 
 BEGIN_INIT_SIM_OBJECT_PARAMS(System)
 
-    INIT_PARAM(physmem, "physical memory")
+    INIT_PARAM(physmem, "physical memory"),
+    INIT_ENUM_PARAM(mem_mode, "Memory Mode, (1=atomic, 2=timing)",
+            System::MemoryModeStrings)
 
 END_INIT_SIM_OBJECT_PARAMS(System)
 
@@ -275,6 +291,7 @@ CREATE_SIM_OBJECT(System)
     System::Params *p = new System::Params;
     p->name = getInstanceName();
     p->physmem = physmem;
+    p->mem_mode = mem_mode;
     return new System(p);
 }