Merge ktlim@zizzer:/bk/newmem

into  zamp.eecs.umich.edu:/z/ktlim2/clean/newmem-merge

--HG--
extra : convert_revision : 488b9a9965dd86ca73dc9e510e5b3122cbd357f9

1 files changed, 101 insertions, 0 deletions

diff --git a/src/cpu/func_unit.hh b/src/cpu/func_unit.hh
new file mode 100644
index 000000000..780143096
--- /dev/null
+++ b/src/cpu/func_unit.hh
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2002-2006 The Regents of The University of Michigan
+ * 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.
+ *
+ * Authors: Steve Raasch
+ */
+
+#ifndef __CPU_FUNC_UNIT_HH__
+#define __CPU_FUNC_UNIT_HH__
+
+#include <bitset>
+#include <string>
+#include <vector>
+
+#include "cpu/op_class.hh"
+#include "sim/sim_object.hh"
+
+////////////////////////////////////////////////////////////////////////////
+//
+//  Structures used ONLY during the initialization phase...
+//
+//
+//
+
+struct OpDesc : public SimObject
+{
+    OpClass opClass;
+    unsigned    opLat;
+    unsigned    issueLat;
+
+    OpDesc(std::string name, OpClass c, unsigned o, unsigned i)
+        : SimObject(name), opClass(c), opLat(o), issueLat(i) {};
+};
+
+struct FUDesc : public SimObject
+{
+    std::vector<OpDesc *> opDescList;
+    unsigned         number;
+
+    FUDesc(std::string name, std::vector<OpDesc *> l, unsigned n)
+        : SimObject(name), opDescList(l), number(n) {};
+};
+
+typedef std::vector<OpDesc *>::iterator OPDDiterator;
+typedef std::vector<FUDesc *>::iterator FUDDiterator;
+
+
+
+
+////////////////////////////////////////////////////////////////////////////
+//
+//  The actual FU object
+//
+//
+//
+class FuncUnit
+{
+  private:
+    unsigned opLatencies[Num_OpClasses];
+    unsigned issueLatencies[Num_OpClasses];
+    std::bitset<Num_OpClasses> capabilityList;
+
+  public:
+    FuncUnit();
+    FuncUnit(const FuncUnit &fu);
+
+    std::string name;
+
+    void addCapability(OpClass cap, unsigned oplat, unsigned issuelat);
+
+    bool provides(OpClass capability);
+    std::bitset<Num_OpClasses> capabilities();
+
+    unsigned &opLatency(OpClass capability);
+    unsigned issueLatency(OpClass capability);
+};
+
+#endif // __FU_POOL_HH__