From b742081cc13f31bb5ebb10739a2e37727d80a085 Mon Sep 17 00:00:00 2001
From: Nilay Vaish <nilay@cs.wisc.edu>
Date: Sun, 10 Feb 2013 21:26:25 -0600
Subject: ruby: replace Time with Cycles in Memory Controller

---
 src/mem/ruby/system/MemoryControl.hh     |  2 +-
 src/mem/ruby/system/MemoryNode.hh        | 12 +++++-------
 src/mem/ruby/system/RubyMemoryControl.cc | 10 ++++------
 src/mem/ruby/system/RubyMemoryControl.hh |  2 +-
 4 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/src/mem/ruby/system/MemoryControl.hh b/src/mem/ruby/system/MemoryControl.hh
index fb77eadb2..daa5b61fc 100644
--- a/src/mem/ruby/system/MemoryControl.hh
+++ b/src/mem/ruby/system/MemoryControl.hh
@@ -66,7 +66,7 @@ class MemoryControl : public ClockedObject, public Consumer
     virtual std::string getDescription() = 0;
 
     // Called from the directory:
-    virtual void enqueue(const MsgPtr& message, int latency ) = 0;
+    virtual void enqueue(const MsgPtr& message, Cycles latency) = 0;
     virtual void enqueueMemRef(MemoryNode& memRef) = 0;
     virtual void dequeue() = 0;
     virtual const Message* peek() = 0;
diff --git a/src/mem/ruby/system/MemoryNode.hh b/src/mem/ruby/system/MemoryNode.hh
index 5bf988935..f215ab649 100644
--- a/src/mem/ruby/system/MemoryNode.hh
+++ b/src/mem/ruby/system/MemoryNode.hh
@@ -40,8 +40,6 @@
 
 #include <iostream>
 
-#include "mem/protocol/MemoryRequestType.hh"
-#include "mem/ruby/common/Global.hh"
 #include "mem/ruby/common/TypeDefines.hh"
 #include "mem/ruby/slicc_interface/Message.hh"
 
@@ -49,10 +47,10 @@ class MemoryNode
 {
   public:
     // old constructor
-    MemoryNode(const Time& time, int counter, const MsgPtr& msgptr,
+    MemoryNode(const Cycles& time, int counter, const MsgPtr& msgptr,
                const physical_address_t addr, const bool is_mem_read)
+        : m_time(time)
     {
-        m_time = time;
         m_msg_counter = counter;
         m_msgptr = msgptr;
         m_addr = addr;
@@ -61,11 +59,11 @@ class MemoryNode
     }
 
     // new constructor
-    MemoryNode(const Time& time, const MsgPtr& msgptr,
+    MemoryNode(const Cycles& time, const MsgPtr& msgptr,
                const physical_address_t addr, const bool is_mem_read,
                const bool is_dirty_wb)
+        : m_time(time)
     {
-        m_time = time;
         m_msg_counter = 0;
         m_msgptr = msgptr;
         m_addr = addr;
@@ -75,7 +73,7 @@ class MemoryNode
 
     void print(std::ostream& out) const;
 
-    Time m_time;
+    Cycles m_time;
     int m_msg_counter;
     MsgPtr m_msgptr;
     physical_address_t m_addr;
diff --git a/src/mem/ruby/system/RubyMemoryControl.cc b/src/mem/ruby/system/RubyMemoryControl.cc
index 121551299..542835102 100644
--- a/src/mem/ruby/system/RubyMemoryControl.cc
+++ b/src/mem/ruby/system/RubyMemoryControl.cc
@@ -276,10 +276,9 @@ RubyMemoryControl::~RubyMemoryControl()
 
 // enqueue new request from directory
 void
-RubyMemoryControl::enqueue(const MsgPtr& message, int latency)
+RubyMemoryControl::enqueue(const MsgPtr& message, Cycles latency)
 {
-    Time current_time = g_system_ptr->getTime();
-    Time arrival_time = current_time + latency;
+    Cycles arrival_time = g_system_ptr->getTime() + latency;
     const MemoryMsg* memMess = safe_cast<const MemoryMsg*>(message.get());
     physical_address_t addr = memMess->getAddress().getAddress();
     MemoryRequestType type = memMess->getType();
@@ -376,14 +375,13 @@ RubyMemoryControl::printStats(ostream& out) const
 void
 RubyMemoryControl::enqueueToDirectory(MemoryNode req, Cycles latency)
 {
-    Time arrival_time = curTick() + (latency * clock);
+    Tick arrival_time = clockEdge(latency);
     Cycles ruby_arrival_time = g_system_ptr->ticksToCycles(arrival_time);
     req.m_time = ruby_arrival_time;
     m_response_queue.push_back(req);
 
     DPRINTF(RubyMemory, "Enqueueing msg %#08x %c back to directory at %15d\n",
-            req.m_addr, req.m_is_mem_read ? 'R':'W',
-            arrival_time);
+            req.m_addr, req.m_is_mem_read ? 'R':'W', arrival_time);
 
     // schedule the wake up
     m_consumer_ptr->scheduleEventAbsolute(ruby_arrival_time);
diff --git a/src/mem/ruby/system/RubyMemoryControl.hh b/src/mem/ruby/system/RubyMemoryControl.hh
index bd94abaa6..68ef054e3 100644
--- a/src/mem/ruby/system/RubyMemoryControl.hh
+++ b/src/mem/ruby/system/RubyMemoryControl.hh
@@ -72,7 +72,7 @@ class RubyMemoryControl : public MemoryControl
     std::string getDescription() { return m_description; };
 
     // Called from the directory:
-    void enqueue(const MsgPtr& message, int latency );
+    void enqueue(const MsgPtr& message, Cycles latency);
     void enqueueMemRef(MemoryNode& memRef);
     void dequeue();
     const Message* peek();
-- 
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