From 2f30950143cc70bc42a3c8a4111d7cf8198ec881 Mon Sep 17 00:00:00 2001
From: Nathan Binkert <nate@binkert.org>
Date: Mon, 11 May 2009 10:38:43 -0700
Subject: ruby: Import ruby and slicc from GEMS

We eventually plan to replace the m5 cache hierarchy with the GEMS
hierarchy, but for now we will make both live alongside eachother.
---
 src/mem/ruby/system/TBETable.hh | 165 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 src/mem/ruby/system/TBETable.hh

(limited to 'src/mem/ruby/system/TBETable.hh')

diff --git a/src/mem/ruby/system/TBETable.hh b/src/mem/ruby/system/TBETable.hh
new file mode 100644
index 000000000..ad1674dca
--- /dev/null
+++ b/src/mem/ruby/system/TBETable.hh
@@ -0,0 +1,165 @@
+
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * TBETable.h
+ *
+ * Description:
+ *
+ * $Id$
+ *
+ */
+
+#ifndef TBETABLE_H
+#define TBETABLE_H
+
+#include "Global.hh"
+#include "Map.hh"
+#include "Address.hh"
+#include "Profiler.hh"
+#include "AbstractChip.hh"
+#include "System.hh"
+
+template<class ENTRY>
+class TBETable {
+public:
+
+  // Constructors
+  TBETable(AbstractChip* chip_ptr);
+
+  // Destructor
+  //~TBETable();
+
+  // Public Methods
+
+  static void printConfig(ostream& out) { out << "TBEs_per_TBETable: " << NUMBER_OF_TBES << endl; }
+
+  bool isPresent(const Address& address) const;
+  void allocate(const Address& address);
+  void deallocate(const Address& address);
+  bool areNSlotsAvailable(int n) const { return (NUMBER_OF_TBES - m_map.size()) >= n; }
+
+  ENTRY& lookup(const Address& address);
+  const ENTRY& lookup(const Address& address) const;
+
+  // Print cache contents
+  void print(ostream& out) const;
+private:
+  // Private Methods
+
+  // Private copy constructor and assignment operator
+  TBETable(const TBETable& obj);
+  TBETable& operator=(const TBETable& obj);
+
+  // Data Members (m_prefix)
+  Map<Address, ENTRY> m_map;
+  AbstractChip* m_chip_ptr;
+};
+
+// Output operator declaration
+//ostream& operator<<(ostream& out, const TBETable<ENTRY>& obj);
+
+// ******************* Definitions *******************
+
+// Output operator definition
+template<class ENTRY>
+extern inline
+ostream& operator<<(ostream& out, const TBETable<ENTRY>& obj)
+{
+  obj.print(out);
+  out << flush;
+  return out;
+}
+
+
+// ****************************************************************
+
+template<class ENTRY>
+extern inline
+TBETable<ENTRY>::TBETable(AbstractChip* chip_ptr)
+{
+  m_chip_ptr = chip_ptr;
+}
+
+// PUBLIC METHODS
+
+// tests to see if an address is present in the cache
+template<class ENTRY>
+extern inline
+bool TBETable<ENTRY>::isPresent(const Address& address) const
+{
+  assert(address == line_address(address));
+  assert(m_map.size() <= NUMBER_OF_TBES);
+  return m_map.exist(address);
+}
+
+template<class ENTRY>
+extern inline
+void TBETable<ENTRY>::allocate(const Address& address)
+{
+  assert(isPresent(address) == false);
+  assert(m_map.size() < NUMBER_OF_TBES);
+  g_system_ptr->getProfiler()->L2tbeUsageSample(m_map.size());
+  m_map.add(address, ENTRY());
+}
+
+template<class ENTRY>
+extern inline
+void TBETable<ENTRY>::deallocate(const Address& address)
+{
+  assert(isPresent(address) == true);
+  assert(m_map.size() > 0);
+  m_map.erase(address);
+}
+
+// looks an address up in the cache
+template<class ENTRY>
+extern inline
+ENTRY& TBETable<ENTRY>::lookup(const Address& address)
+{
+  assert(isPresent(address) == true);
+  return m_map.lookup(address);
+}
+
+// looks an address up in the cache
+template<class ENTRY>
+extern inline
+const ENTRY& TBETable<ENTRY>::lookup(const Address& address) const
+{
+  assert(isPresent(address) == true);
+  return m_map.lookup(address);
+}
+
+template<class ENTRY>
+extern inline
+void TBETable<ENTRY>::print(ostream& out) const
+{
+}
+
+#endif //TBETABLE_H
-- 
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