Initial commit of OpenSPARC T2 design and verification files.

[OpenSPARC-T2-DV] / verif / env / ilu_peu / vera / context / ilupeuEgressContext.vr

// ========== Copyright Header Begin ==========================================
// 
// OpenSPARC T2 Processor File: ilupeuEgressContext.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
//
// * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
// 
// For the avoidance of doubt, and except that if any non-GPL license 
// choice is available it will apply instead, Sun elects to use only 
// the General Public License version 2 (GPLv2) at this time for any 
// software where a choice of GPL license versions is made 
// available with the language indicating that GPLv2 or any later version 
// may be used, or where a choice of which version of the GPL is applied is 
// otherwise unspecified. 
//
// Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 
// CA 95054 USA or visit www.sun.com if you need additional information or 
// have any questions. 
// 
// ========== Copyright Header End ============================================
class ilupeuEgressContext extends ilupeuContextBase {


  //Inherited from CTContextBase
  //integer       NumStrat;
  //string        Name = "";
  //protected    CTTransactionID      ID = new;  
  

  // Strategy Type Encoding
  protected integer strat_type_tlp_enc;
  protected integer strat_type_dllp_enc;

  local bit     HangDetect = 0;
  local integer WaitCount;

  // Constructor
  task new ( ReportClass     _Report,
             CSRCollection   _CSR,
             ilupeuPodClass  _Pod, 	//Xactors
             ilupeuScenario  _Scenario );	//Xactors
 
  // Public Methods
  task Execute();

  
  function CTStrategyBase ProvideTlpStrategy();
  function CTStrategyBase ProvideDllpStrategy();
  function CTStrategyBase FinalizeTlpParms( CTStrategyBase FinalStrategy );
  function CTStrategyBase FinalizeDllpParms( CTStrategyBase FinalStrategy );

}	//End ilupeuEgressContext extends CTContextBase

task ilupeuEgressContext::new ( ReportClass     _Report,
                               CSRCollection    _CSR,
                               ilupeuPodClass    _Pod,
                               ilupeuScenario    _Scenario)
{
    
  string Name = "ilupeuEgressContext" ;

  super.new ( _Report,
              _CSR,
              _Pod, 
              _Scenario,
              Name );


}	//End ilupeuEgressContext::new

function CTStrategyBase ilupeuEgressContext::ProvideTlpStrategy()
{
  // All Supported TLP Strategies Should Be Listed Here
  ilupeuEgressTlpStrategy  TlpStrat;
 
  //Provide the strategy based on test parameters
  randcase{

     Scenario.EgrTlpWt: {
          
        strat_type_tlp_enc = ILUPEU_TLP_STRAT_ENC;
        TlpStrat = new ( Report,
                         CSR,
                         Pod,
                         Scenario ) ;

        ProvideTlpStrategy = TlpStrat;
     }
  }
} 	//End ilupeuEgressContext::ProvideTlpStrategy()


function CTStrategyBase ilupeuEgressContext::ProvideDllpStrategy()
{
/* review
  // All Supported DLLP Strategies Should Be Listed Here
  ilupeuEgressDllpFCStrategy DllpFCStrat;
//  ilupeuEgressDllpPMStrategy DllpPMStrat;
 
  //Provide the strategy based on test parameters
  randcase{
     Scenario.EgrDllpFCWt: {
          
        strat_type_dllp_enc = ILUPEU_DLLP_FC_STRAT_ENC;
        DllpFCStrat = new ( Report,
                            CSR,
                            Pod,
                            Scenario ) ;

        ProvideDllpStrategy = DllpFCStrat;
     }

     Scenario.EgrDllpPMWt: {
          
        strat_type_dllp_enc = ILUPEU_DLLP_PM_STRAT_ENC;
        DllpPMStrat = new ( Report,
                            CSR,
                            Pod,
                            Scenario ) ;

        ProvideDllpStrategy = DllpPMStrat;
     }
  }
*/
}	//End ilupeuEgressContext::ProvideDllpStrategy()

function CTStrategyBase ilupeuEgressContext::FinalizeTlpParms( CTStrategyBase FinalStrategy )
{

  // All Supported TLP Strategies Should Be Listed Here
  ilupeuEgressTlpStrategy  TlpStrat;

  //Cast assign to the correct Type
  case( strat_type_tlp_enc ){
     ILUPEU_TLP_STRAT_ENC  :    cast_assign( TlpStrat, FinalStrategy );

     default : QuickReport( Report, RTYP_TEST_ERROR,
                           "ilupeuEgressContext FinalizeTlpParms() -> hit default case strat_type_tlp_enc=%0d",
                           strat_type_tlp_enc );
  }

  //Set up Necessary Parameters 
  case( strat_type_tlp_enc ){
     ILUPEU_TLP_STRAT_ENC     :    FinalizeTlpParms = TlpStrat;
  }

}	//End ilupeuEgressContext::FinalizeParms


function CTStrategyBase ilupeuEgressContext::FinalizeDllpParms( CTStrategyBase FinalStrategy )
{
/*
  // All Supported DLLP Strategies Should Be Listed Here
//review - Will allow ilupeu and denali to handle all flow control
  ilupeuEgressDllpFCStrategy DllpFCStrat;
//  ilupeuEgressDllpPMStrategy DllpPMStrat;

  //Cast assign to the correct Type
  case( strat_type_dllp_enc ){
     ILUPEU_DLLP_FC_STRAT_ENC :    cast_assign( DllpFCStrat, FinalStrategy );
//     ILUPEU_DLLP_PM_STRAT_ENC :    cast_assign( DllpPMStrat, FinalStrategy );

     default : QuickReport( Report, RTYP_TEST_ERROR,
                           "ilupeuEgressContext FinalizeDllpParms() -> hit default case strat_type_dllp_enc=%0d",
                           strat_type_dllp_enc );
  }

  //Set up Necessary Parameters 
  case( strat_type_dllp_enc ){
     ILUPEU_DLLP_FC_STRAT_ENC :    FinalizeDllpParms = DllpFCStrat;
//     ILUPEU_DLLP_PM_STRAT_ENC :    FinalizeDllpParms = DllpPMStrat;
  }
*/
}	//End ilupeuEgressContext::FinalizeDllpParms

task ilupeuEgressContext::Execute() {

  //Determine the number of strategies for each type 
  tlpNumStrat = RandUtil.Rand32( Scenario.EgrTlpMinStrats, Scenario.EgrTlpMaxStrats );
  dllpNumStrat = RandUtil.Rand32( Scenario.EgrDllpMinStrats, Scenario.EgrDllpMaxStrats );

  //Set the min and max issue delay values 
  tlpMinDelay = Scenario.EgrTlpMinIssueDly;
  tlpMaxDelay = Scenario.EgrTlpMaxIssueDly;
  dllpMinDelay = Scenario.EgrDllpMinIssueDly;
  dllpMaxDelay = Scenario.EgrDllpMaxIssueDly;

  //Set the min and max active strats values
  tlpMinActiveStrats = Scenario.EgrTlpMinActiveStrats;
  tlpMaxActiveStrats = Scenario.EgrTlpMaxActiveStrats;
  dllpMinActiveStrats = Scenario.EgrDllpMinActiveStrats;
  dllpMaxActiveStrats = Scenario.EgrDllpMaxActiveStrats;

  QuickReport( Report,RTYP_INFO, "Starting Context %s ID = %0d tlpNumStrat=%0d dllpNumStrat=%0d",
                       Name, ID.GetContextID(), tlpNumStrat,dllpNumStrat );

  //Fork off a seperate thread for TLP's and DLLP's for better control
  fork
  { 
      if( tlpNumStrat > 0 && Scenario.EgrTlpWt > 0 ){ 
         ExecuteTlp();
      }   
  } 
  {
      if( dllpNumStrat > 0 && ( Scenario.EgrDllpFCWt > 0 || Scenario.EgrDllpPMWt > 0 ) ){
         ExecuteDllp();
      }  
  }
  join

  //Delay to let any Report Errors filter through
  repeat(20) @(posedge CLOCK);

  QuickReport( Report,RTYP_INFO, "Finishing Context %s ID = %0d",
                       Name,
                       ID.GetContextID() );

}