kfdtest: add xgmi path for p2p tests

When large bar is not available, we can use
xgmi to do p2p tests.

Change-Id: Ib7b59fb8a4d41f605739a0428973f6b2f1a3450f
Signed-off-by: Eric Huang <JinhuiEric.Huang@amd.com>


[ROCm/ROCR-Runtime commit: 0174377351]

projects/rocr-runtime/tests/kfdtest/src/KFDTestUtil.hpp

@@ -188,6 +188,9 @@ class HsaNodeInfo {
     // @brief Find the first available Large-BAR GPU node
     // @return: Node ID if successful or -1
     const int FindLargeBarGPUNode() const;
+    const bool AreGPUNodesXGMI(int node0, int node1) const;
+    int FindAccessiblePeers(std::vector<HSAuint32> *peers, HSAuint32 dstNode,
+            bool bidirectional) const;
 };
 
 #endif  // __KFD__TEST__UTIL__H__