ext: add McPAT source

this patch adds the source for mcpat, a power, area, and timing modeling
framework.

1 files changed, 97 insertions, 0 deletions

diff --git a/ext/mcpat/cacti/htree2.h b/ext/mcpat/cacti/htree2.h
new file mode 100644
index 000000000..053e43a27
--- /dev/null
+++ b/ext/mcpat/cacti/htree2.h
@@ -0,0 +1,97 @@
+/*****************************************************************************
+ *                                McPAT/CACTI
+ *                      SOFTWARE LICENSE AGREEMENT
+ *            Copyright 2012 Hewlett-Packard Development Company, L.P.
+ *                          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.”
+ *
+ ***************************************************************************/
+
+
+#ifndef __HTREE2_H__
+#define __HTREE2_H__
+
+#include "assert.h"
+#include "basic_circuit.h"
+#include "cacti_interface.h"
+#include "component.h"
+#include "parameter.h"
+#include "subarray.h"
+#include "wire.h"
+
+// leakge power includes entire htree in a bank (when uca_tree == false)
+// leakge power includes only part to one bank when uca_tree == true
+
+class Htree2 : public Component
+{
+  public:
+    Htree2(enum Wire_type wire_model,
+        double mat_w, double mat_h, int add, int data_in, int search_data_in, int data_out, int search_data_out, int bl, int wl,
+        enum Htree_type h_type, bool uca_tree_ = false, bool search_tree_ = false,
+        TechnologyParameter::DeviceType *dt = &(g_tp.peri_global));
+    ~Htree2() {};
+
+    void in_htree();
+    void out_htree();
+
+    // repeaters only at h-tree nodes
+    void limited_in_htree();
+    void limited_out_htree();
+    void input_nand(double s1, double s2, double l);
+    void output_buffer(double s1, double s2, double l);
+
+    double in_rise_time, out_rise_time;
+
+    void set_in_rise_time(double rt)
+    {
+      in_rise_time = rt;
+    }
+
+    double max_unpipelined_link_delay;
+    powerDef power_bit;
+
+
+  private:
+    double wire_bw;
+    double init_wire_bw;  // bus width at root
+    enum Htree_type tree_type;
+    double htree_hnodes;
+    double htree_vnodes;
+    double mat_width;
+    double mat_height;
+    int add_bits, data_in_bits,search_data_in_bits,data_out_bits,  search_data_out_bits;
+    int ndbl, ndwl;
+    bool uca_tree; // should have full bandwidth to access all banks in the array simultaneously
+    bool search_tree;
+
+    enum Wire_type wt;
+    double min_w_nmos;
+    double min_w_pmos;
+
+    TechnologyParameter::DeviceType *deviceType;
+
+};
+
+#endif