FAPI2: Add method to Target to query core select vector from CORE targets

Add fapi2::Target::getCoreSelect() which will return the core select bits
for a TARGET_TYPE_CORE target or a TARGET_TYPE_CORE|TARGET_TYPE_MULTICAST
target. Other target types don't have the notion of a core select value,
so attempting to call getCoreSelect() will result in a compile-time error.

Change-Id: I427028876b18126493192db53686707c662bafd7
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/74675
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matt K. Light <mklight@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/75431
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>

2 files changed, 25 insertions, 1 deletions

diff --git a/src/import/hwpf/fapi2/include/fapi2_target.H b/src/import/hwpf/fapi2/include/fapi2_target.H
index 8dd1cc13..e8c7877d 100644
--- a/src/import/hwpf/fapi2/include/fapi2_target.H
+++ b/src/import/hwpf/fapi2/include/fapi2_target.H
@@ -379,6 +379,19 @@ class Target
         getChipletNumber(void) const;
 
         ///
+        /// @brief Returns the core select vector associated with a Core target
+        /// @return The core select value for the target. For unicast core targets
+        /// the return value will have exactly one bit set. For multicast core
+        /// targets it will have between one and four bits set.
+        ///
+        inline MulticastCoreSelect
+        getCoreSelect(void) const
+        {
+            static_assert(K & TARGET_TYPE_CORE, "getCoreSelect is only applicable to TARGET_TYPE_CORE targets");
+            return _getCoreSelect();
+        }
+
+        ///
         /// @brief Copy from a Target<O, MO> to a Target<K, M>
         /// @tparam O the target type of the other
         /// @tparam MO the multicast type of the other
@@ -410,7 +423,10 @@ class Target
         V iv_handle;
 
         /// @brief if iv_handle is a multicast target, update its multicast type to M
-        inline void mcUpdateHandle();
+        inline void mcUpdateHandle(void);
+
+        /// @brief Internal implementation of getCoreSelect, filtered for CORE targets
+        inline MulticastCoreSelect _getCoreSelect(void) const;
 };
 
 // EX threads map to CORE threads:
diff --git a/src/import/hwpf/fapi2/include/plat/target.H b/src/import/hwpf/fapi2/include/plat/target.H
index 62e57f8d..884b60e5 100644
--- a/src/import/hwpf/fapi2/include/plat/target.H
+++ b/src/import/hwpf/fapi2/include/plat/target.H
@@ -198,6 +198,14 @@ Target<K, M, V>::getChipletNumber(void) const
     return 0;
 }
 
+template<TargetType K, MulticastType M, typename V>
+inline MulticastCoreSelect
+Target<K, M, V>::_getCoreSelect(void) const
+{
+    // Platform can return the core select value stored in it's Target handle
+    return MCCORE_0;
+}
+
 ///
 /// @brief Return the string interpretation of this target
 /// @tparam T The type of the target