Added completer error support

Author: allRisc

src/agent/apb_driver.svh

@@ -181,6 +181,7 @@ class apb_driver#(`_APB_AGENT_PARAM_DEFS) extends uvm_driver#(apb_transaction#(`
 
         m_vif.pready = 1'b0;
         m_vif.prdata = '0;
+        m_vif.pslverr = 1'b0;
 
         forever begin
             m_vif.pready = 1'b0;
@@ -197,6 +198,7 @@ class apb_driver#(`_APB_AGENT_PARAM_DEFS) extends uvm_driver#(apb_transaction#(`
             end
 
             m_vif.pready = 1'b1;
+            m_vif.pslverr = trans.error;
 
             @(posedge m_vif.pclk);
             seq_item_port.item_done();

src/agent/apb_monitor.svh

@@ -137,14 +137,16 @@ class apb_monitor#(`_APB_AGENT_PARAM_DEFS) extends uvm_monitor;
             // Access Phase
             // TODO: Check penable
 
-            if (m_vif.pready) begin
+            if (m_vif.pready && m_vif.penable) begin
                 if (trans.write == APB_READ) begin
                     trans.data = m_vif.prdata;
                 end
                 else begin
                     trans.data = m_vif.pwdata;
                 end
 
+                trans.error = m_vif.pslverr;
+
                 ap.write(trans);
                 trans = null;
 

src/agent/apb_transaction.svh

@@ -58,6 +58,12 @@ class apb_transaction#(`_APB_AGENT_PARAM_DEFS) extends uvm_sequence_item;
     // Set by the agent in APB_REQUESTER_AGENT mode.
     rand apb_pprot_t pprot = '0;
 
+    // Poperty: error
+    // The Completer Error signal from the transaction.
+    // Set by the sequence in APB_REQUESTER_AGENT mode.
+    // set by the agent in AAPB_COMPELTER_AGENT mode.
+    rand bit error = 1'b0;
+
     // Property: wait_states
     // The number of wait states in the transaction.
     // Set by sequence in APB_REQUESTER_AGENT mode.
@@ -73,6 +79,7 @@ class apb_transaction#(`_APB_AGENT_PARAM_DEFS) extends uvm_sequence_item;
         super.pre_randomize();
 
         if (rand_type == APB_COMPLETER_AGENT) begin
+            error.rand_mode(0);
             wait_states.rand_mode(0);
             return;
         end