Changeset 111 for trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/Meta_Predictor/Two_Level_Branch_Predictor/src/Two_Level_Branch_Predictor_allocation.cpp

Timestamp:

Feb 27, 2009, 7:37:40 PM (15 years ago)

Author:

rosiere

Message:

1) Decod_queue : multi implementation (one_fifo, multi_fifo)
2) Issue_queue : multi implementation (in_order, out_of_order)
3) Direction : Add Meta predictor
4) Context_State : re add Branch_complete, More priority to Load miss (is not speculative)
5) Return_Address_Stack : update reg_PREDICT pointer on decod miss prediction
6) UPT : Fix bug in multi event
7) Prediction_glue : in read_stack case, insert in UPT pc_next
8) Rename select : when rob have an event (need flush), read_r{a,b,c} and write_r{d,e} is set at 0

File:

• trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/Meta_Predictor/Two_Level_Branch_Predictor/src/Two_Level_Branch_Predictor_allocation.cpp (modified) (2 diffs)

trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/Meta_Predictor/Two_Level_Branch_Predictor/src/Two_Level_Branch_Predictor_allocation.cpp

@@ -19 +19 @@
 namespace meta_predictor {
 namespace two_level_branch_predictor {
-
-
 
 #undef  FUNCTION
@@ -58 +56 @@
       in_NRESET       = interface->set_signal_in  <Tcontrol_t> ("nreset",1, RESET_VHDL_YES);
     }
+
+    // ~~~~~[ Interface : "predict" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    {
+      ALLOC1_INTERFACE("predict",IN,WEST,_("Predict direction interface"),_param->_nb_inst_predict);
+
+      ALLOC1_VALACK_IN ( in_PREDICT_VAL          ,VAL);
+      ALLOC1_VALACK_OUT(out_PREDICT_ACK          ,ACK);
+      ALLOC1_SIGNAL_IN ( in_PREDICT_ADDRESS      ,"ADDRESS"      ,Taddress_t,_param->_size_address);
+      ALLOC1_SIGNAL_OUT(out_PREDICT_DIRECTION    ,"DIRECTION"    ,Tcontrol_t,1                    );
+      ALLOC1_SIGNAL_OUT(out_PREDICT_HISTORY      ,"HISTORY"      ,Thistory_t,_param->_size_history);
+      if (_param->_update_on_prediction)
+        {
+      ALLOC1_SIGNAL_IN ( in_PREDICT_DIRECTION_VAL,"DIRECTION_VAL",Tcontrol_t,1                    );
+      ALLOC1_SIGNAL_IN ( in_PREDICT_DIRECTION    ,"DIRECTION"    ,Tcontrol_t,1                    );
+        }
+    }
+
+    // ~~~~~[ Interface : "update" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    {
+      ALLOC1_INTERFACE("update",IN,WEST,_("Update direction interface"),_param->_nb_inst_update);
+
+      ALLOC1_VALACK_IN ( in_UPDATE_VAL           ,VAL);
+      ALLOC1_VALACK_OUT(out_UPDATE_ACK           ,ACK);
+      ALLOC1_SIGNAL_IN ( in_UPDATE_ADDRESS       ,"ADDRESS"      ,Taddress_t,_param->_size_address);
+      ALLOC1_SIGNAL_IN ( in_UPDATE_HISTORY       ,"HISTORY"      ,Thistory_t,_param->_size_history);
+      ALLOC1_SIGNAL_IN ( in_UPDATE_DIRECTION     ,"DIRECTION"    ,Tcontrol_t,1                    );
+      if (_param->_update_on_prediction)
+      ALLOC1_SIGNAL_IN ( in_UPDATE_MISS          ,"MISS"         ,Tcontrol_t,1                    );
+    }
+
+    if (usage_is_set(_usage,USE_SYSTEMC))
+      {
+        if (_param->_have_bht)
+          {
+        ALLOC1(reg_BHT                       ,Thistory_t,_param->_bht_nb_shifter);
+
+        for (uint32_t i=0; i<_param->_bht_nb_shifter; ++i)
+          reg_BHT [i] = 0;
+          }
+
+        if (_param->_have_pht)
+          {
+        ALLOC2(reg_PHT                       ,Thistory_t,_param->_pht_nb_bank,_param->_pht_size_bank);
+
+        for (uint32_t i=0; i<_param->_pht_nb_bank; ++i)
+          for (uint32_t j=0; j<_param->_pht_size_bank; ++j)
+            reg_PHT [i][j] = 0;
+          }
+
+
+        ALLOC1(internal_PREDICT_ACK          ,Tcontrol_t,_param->_nb_inst_predict);
+        if (_param->_update_on_prediction)
+          {
+        if (_param->_have_bht)
+        ALLOC1(internal_PREDICT_BHT_NUM_REG  ,Thistory_t,_param->_nb_inst_predict);
+        if (_param->_have_pht)
+          {
+        ALLOC1(internal_PREDICT_PHT_NUM_BANK ,Thistory_t,_param->_nb_inst_predict);
+        ALLOC1(internal_PREDICT_PHT_NUM_REG  ,Thistory_t,_param->_nb_inst_predict);
+          }
+          }
+        ALLOC1(internal_UPDATE_ACK           ,Tcontrol_t,_param->_nb_inst_update );
+      }
+
     // ~~~~~[ Component ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~    
-
 #ifdef POSITION
     if (usage_is_set(_usage,USE_POSITION))