From e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1 Mon Sep 17 00:00:00 2001
From: Nilay Vaish <nilay@cs.wisc.edu>
Date: Sat, 11 Oct 2014 15:02:23 -0500
Subject: ext: add the source code for DSENT This patch adds a tool called
 DSENT to the ext/ directory.  DSENT is a tool that models power and area for
 on-chip networks.  The next patch adds a script for using the tool.

---
 ext/dsent/tech/TechModel.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 ext/dsent/tech/TechModel.h

(limited to 'ext/dsent/tech/TechModel.h')

diff --git a/ext/dsent/tech/TechModel.h b/ext/dsent/tech/TechModel.h
new file mode 100644
index 000000000..92e5a30ac
--- /dev/null
+++ b/ext/dsent/tech/TechModel.h
@@ -0,0 +1,71 @@
+#ifndef __DSENT_TECH_TECH_MODEL_H__
+#define __DSENT_TECH_TECH_MODEL_H__
+
+#include <vector>
+#include <set>
+
+#include "libutil/Config.h"
+#include "libutil/String.h"
+
+namespace DSENT
+{
+    class StdCellLib;
+
+    using std::set;
+    using std::vector;
+    using LibUtil::String;
+
+    class TechModel : public LibUtil::Config
+    {
+        public:
+            typedef std::set<String>::const_iterator ConstWireLayerIterator;
+
+        public:
+            TechModel();
+            virtual ~TechModel();
+
+        public:
+            // Set the pointer to a standard cell library
+            void setStdCellLib(const StdCellLib* std_cell_lib_);
+            // Get the pointer to the standard cell library
+            const StdCellLib* getStdCellLib() const;
+
+            // Return a cloned copy of this instance
+            virtual TechModel* clone() const;
+            // Override readFile function to include multiple technology files
+            virtual void readFile(const String& filename_);
+
+            // Transistor
+            // Returns the leakage current of NMOS transistors, given the transistor stakcing, transistor widths, and input combination
+            double calculateNmosLeakageCurrent(unsigned int num_stacks_, double uni_stacked_mos_width_, unsigned int input_vector_) const;
+            double calculateNmosLeakageCurrent(unsigned int num_stacks_, const vector<double>& stacked_mos_widths_, unsigned int input_vector_) const;
+            // Returns the leakage current of PMOS transistors, given the transistor stakcing, transistor widths, and input combination
+            double calculatePmosLeakageCurrent(unsigned int num_stacks_, double uni_stacked_mos_width_, unsigned int input_vector_) const;
+            double calculatePmosLeakageCurrent(unsigned int num_stacks_, const vector<double>& stacked_mos_widths_, unsigned int input_vector_) const;
+            // Returns the leakage current, given the transistor stakcing, transistor widths, input combination,
+            // and technology information (vdd, subthreshold swing, subthreshold dibl swing)
+            double calculateLeakageCurrentFactor(unsigned int num_stacks_, const vector<double>& stacked_mos_widths_, unsigned int input_vector_, double vdd_, double subthreshold_swing_, double dibl_swing_) const;
+
+            // Wire
+            // Check if the wire layer exist
+            bool isWireLayerExist(const String& layer_name_) const;
+            const std::set<String>* getAvailableWireLayers() const;
+            // Return wire capacitance for given wire layer, wire width, wire spacing, and wire length
+            double calculateWireCapacitance(const String& layer_name_, double width_, double spacing_, double length_) const;
+            // Return wire resistance for given wire layer, wire width, and wire length
+            double calculateWireResistance(const String& layer_name_, double width_, double length_) const;
+
+        private:
+            // Private copy constructor. Use clone to perform copy operation
+            TechModel(const TechModel& tech_model_);
+
+        private:
+            // A pointer to a standard cell library
+            const StdCellLib* m_std_cell_lib_;
+            // A set of available wire layers
+            std::set<String>* m_available_wire_layers_;
+    }; // class TechModel
+} // namespace DSENT
+
+#endif // __DSENT_TECH_TECH_MODEL_H__
+
-- 
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