rocr: Add all sysfs entries for L2 Cache

For L2 Cache and above, we report the total amount of cache for the
whole partition, so we add up the L2 Cache entry for each partition.


[ROCm/ROCR-Runtime commit: fc561ff37a]

projects/rocr-runtime/runtime/hsa-runtime/core/runtime/amd_gpu_agent.cpp

@@ -1430,7 +1430,14 @@ hsa_status_t GpuAgent::GetInfo(hsa_agent_info_t attribute, void* value) const {
       const size_t num_cache = cache_props_.size();
       for (size_t i = 0; i < num_cache; ++i) {
         const uint32_t line_level = cache_props_[i].CacheLevel;
-        if (reinterpret_cast<uint32_t*>(value)[line_level - 1] == 0)
+          /*
+           * L1 Cache is per CU.
+           * For L2 Cache and above, we report total for the partition so we sum
+           * all the node entries.
+           */
+        if (line_level >= 2)
+          reinterpret_cast<uint32_t*>(value)[line_level - 1] += cache_props_[i].CacheSize * 1024;
+        else if (reinterpret_cast<uint32_t*>(value)[line_level - 1] == 0)
           reinterpret_cast<uint32_t*>(value)[line_level - 1] = cache_props_[i].CacheSize * 1024;
       }
     } break;