From 69f2911e04ffb1b19eef1fafb8c040af271f656e Mon Sep 17 00:00:00 2001
From: Tor Aamodt <aamodt@ece.ubc.ca>
Date: Thu, 15 Jul 2010 18:09:46 -0800
Subject: creating branch for adding support for CUDA 3.x and Fermi

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6829]
---
 src/intersim/vc.cpp | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 src/intersim/vc.cpp

(limited to 'src/intersim/vc.cpp')

diff --git a/src/intersim/vc.cpp b/src/intersim/vc.cpp
new file mode 100644
index 0000000..a1a4ff6
--- /dev/null
+++ b/src/intersim/vc.cpp
@@ -0,0 +1,175 @@
+#include "booksim.hpp"
+#include "vc.hpp"
+
+void VC::init( const Configuration& config, int outputs ) 
+{
+   _Init( config, outputs );
+}
+
+VC::VC( const Configuration& config, int outputs, 
+        Module *parent, const string& name ) :
+Module( parent, name )
+{
+   _Init( config, outputs );
+}
+
+VC::~VC( )
+{
+}
+
+void VC::_Init( const Configuration& config, int outputs )
+{
+   _state      = idle;
+   _state_time = 0;
+
+   _size = int( config.GetInt( "vc_buf_size" ) );
+
+   _route_set = new OutputSet( outputs );
+
+   _occupied_cnt = 0;
+
+   _total_cycles    = 0;
+   _vc_alloc_cycles = 0;
+   _active_cycles   = 0;
+   _idle_cycles     = 0;
+
+   _pri = 0;
+
+   _watched = false;
+}
+
+bool VC::AddFlit( Flit *f )
+{
+   bool success = false;
+
+   if ( (int)_buffer.size( ) != _size ) {
+      _buffer.push( f );
+      success = true;
+   }
+
+   return success;
+}
+
+Flit *VC::FrontFlit( )
+{
+   Flit *f;
+
+   if ( !_buffer.empty( ) ) {
+      f = _buffer.front( );
+   } else {
+      f = 0;
+   }
+
+   return f;
+}
+
+Flit *VC::RemoveFlit( )
+{
+   Flit *f;
+
+   if ( !_buffer.empty( ) ) {
+      f = _buffer.front( );
+      _buffer.pop( );
+   } else {
+      f = 0;
+   }
+
+   return f;
+}
+
+bool VC::Empty( ) const
+{
+   return _buffer.empty( );
+}
+
+VC::eVCState VC::GetState( ) const
+{
+   return _state;
+}
+
+int VC::GetStateTime( ) const
+{
+   return _state_time;
+}
+
+void VC::SetState( eVCState s )
+{
+   _state = s;
+   _state_time = 0;
+
+   if ( s == active ) {
+      Flit *f;
+
+      f = FrontFlit( );
+      if ( f ) {
+         _pri = f->pri;
+      }
+
+      _occupied_cnt++;
+   }
+}
+
+const OutputSet *VC::GetRouteSet( ) const
+{
+   return _route_set;
+}
+
+void VC::SetOutput( int port, int vc )
+{
+   _out_port = port;
+   _out_vc   = vc;
+}
+
+int VC::GetOutputPort( ) const
+{
+   return _out_port;
+}
+
+int VC::GetOutputVC( ) const
+{
+   return _out_vc;
+}
+
+int VC::GetPriority( ) const
+{
+   return _pri;
+}
+
+void VC::Route( tRoutingFunction rf, const Router* router, const Flit* f, int in_channel )
+{  
+   rf( router, f, in_channel, _route_set, false );
+}
+
+void VC::AdvanceTime( )
+{
+   _state_time++;
+
+   _total_cycles++;
+   switch ( _state ) {
+   case idle     : _idle_cycles++; break;
+   case active   : _active_cycles++; break;
+   case vc_alloc : _vc_alloc_cycles++; break;
+   case routing  : break;
+   }
+}
+
+// ==== Debug functions ====
+
+void VC::SetWatch( bool watch )
+{
+   _watched = watch;
+}
+
+bool VC::IsWatched( ) const
+{
+   return _watched;
+}
+
+void VC::Display( ) const
+{
+   cout << _fullname << " : "
+   << "idle " << 100.0 * (double)_idle_cycles / (double)_total_cycles << "% "
+   << "vc_alloc " << 100.0 * (double)_vc_alloc_cycles / (double)_total_cycles << "% "
+   << "active " << 100.0 * (double)_active_cycles / (double)_total_cycles << "% "
+   << endl;
+}
-- 
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