Fix Physical Memory to allow memory sizes bigger than 128MB.

Kinda port DRAM to new memory system. The code is *really* ugly (not my fault) and right now something about the stats it uses
causes a simulator segfault.

src/SConscript:
    Add dram.cc to sconscript
src/mem/physical.cc:
src/mem/physical.hh:
    Add params struct to physical memory, use params, make latency function be virtual
src/python/m5/objects/PhysicalMemory.py:
    Add DRAMMemory python class

--HG--
extra : convert_revision : 5bd9f2e071c62da89e8efa46fa016f342c01535d

1 files changed, 17 insertions, 8 deletions

diff --git a/src/mem/physical.hh b/src/mem/physical.hh
index b549c1f8b..c0a5523ba 100644
--- a/src/mem/physical.hh
+++ b/src/mem/physical.hh
@@ -80,19 +80,28 @@ class PhysicalMemory : public MemObject
     const PhysicalMemory &operator=(const PhysicalMemory &specmem);
 
   protected:
-    Addr base_addr;
-    Addr pmem_size;
-    uint8_t *pmem_addr;
+    uint8_t *pmemAddr;
     MemoryPort *port;
-    int page_ptr;
+    int pagePtr;
     Tick lat;
 
   public:
     Addr new_page();
-    uint64_t size() { return pmem_size; }
+    uint64_t size() { return params()->addrRange.size(); }
+
+    struct Params
+    {
+        std::string name;
+        Range<Addr> addrRange;
+        Tick latency;
+    };
+
+  protected:
+    Params *_params;
 
   public:
-    PhysicalMemory(const std::string &n, Tick latency);
+    const Params *params() const { return _params; }
+    PhysicalMemory(Params *p);
     virtual ~PhysicalMemory();
 
   public:
@@ -102,9 +111,9 @@ class PhysicalMemory : public MemObject
     void virtual init();
     unsigned int drain(Event *de);
 
-  private:
+  protected:
     Tick doFunctionalAccess(Packet *pkt);
-
+    virtual Tick calculateLatency(Packet *pkt);
     void recvStatusChange(Port::Status status);
 
   public: