Add interface to look up model type of master processor on targetService

While going through IPL flow updates for Axone I realized it would be
handy to have a targetService utility function that told us what MODEL
we are running hostboot for. This commit introduced the interface
TargetService::getProcessorModel() which will return the model of the
master processor.

Change-Id: Ia4c9a578bc39f08c69946b6fbbcb800707342e7d
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/72587
Reviewed-by: Matthew Raybuck <matthew.raybuck@ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/include/usr/targeting/common/targetservice.H

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2012,2018                        */
+/* Contributors Listed Below - COPYRIGHT 2012,2019                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -371,6 +371,13 @@ class TargetService
         friend class _TargetRawIterator<Target*>;
         friend class _TargetRawIterator<const Target*>;
 
+        /**
+         *  @brief Return the value of iv_processorModel
+         *
+         *  @return ATTR_MODEL_type the model type of the master processor
+         */
+        ATTR_MODEL_type getProcessorModel(void);
+
         /**
          *  @brief Returns the top level physical target
          *
@@ -1104,9 +1111,16 @@ class TargetService
          */
         void _setTopLevelTarget();
 
+        /**
+         *  @brief Set the instance variable iv_processorModel to be the value of
+         *         attribute ATTR_MODEL of the master processor
+         */
+        void _setProcessorModel(void);
+
         // Instance variables
         bool        iv_initialized; ///< Is service initialized or not
         Target      * iv_pSys;      // Top Level Target
+        ATTR_MODEL_type iv_processorModel; // Model of the master processor
 
         NodeData_t iv_nodeData;
 

src/usr/targeting/common/targetservice.C

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2012,2018                        */
+/* Contributors Listed Below - COPYRIGHT 2012,2019                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -115,7 +115,8 @@ TRAC_INIT(&g_trac_targeting, "TARG", 4096);
 
 TargetService::TargetService() :
     iv_initialized(false),
-    iv_pSys(NULL)
+    iv_pSys(NULL),
+    iv_processorModel(MODEL_NA)
 {
     #define TARG_FN "TargetService()"
 
@@ -215,13 +216,46 @@ void TargetService::init(const size_t i_maxNodes)
 
         // call to set the top TYPE_SYS target
         _setTopLevelTarget();
+
+        // Lookup the master processor's ATTR_MODEL attribute and set
+        // the instance variable on the targetService object for quick
+        // future reference
+        _setProcessorModel();
     }
 
     TARG_EXIT();
 
     #undef TARG_FN
 }
 
+//******************************************************************************
+// TargetService:: _setProcessorModel
+//******************************************************************************
+void TargetService::_setProcessorModel(void)
+{
+    #define TARG_FN "setProcessorModel()"
+    TARG_ENTER();
+
+    TargetHandle_t masterProc = NULL;
+    masterProcChipTargetHandle( masterProc );
+
+    TARG_ASSERT(masterProc, "Failed to find master processor, SW error, check MRW / XML " );
+
+    iv_processorModel = masterProc->getAttr<ATTR_MODEL>();
+
+    TARG_EXIT();
+    #undef TARG_FN
+    return;
+}
+
+//******************************************************************************
+// TargetService:: getProcessorModel
+//******************************************************************************
+ATTR_MODEL_type TargetService::getProcessorModel(void)
+{
+    return iv_processorModel;
+}
+
 //******************************************************************************
 // TargetService:: _setTopLevelTarget
 //******************************************************************************