Reapply "Upgrade ROCm-SMI to AMD SMI (#86)" (#147)

* Reapply "Upgrade ROCm-SMI to AMD SMI (#86)"

This reverts commit b3eee295dd.

---------

Signed-off-by: Carrie Fallows <Carrie.Fallows@amd.com>
Co-authored-by: David Galiffi <David.Galiffi@amd.com>

source/lib/core/gpu.hpp

@@ -22,18 +22,41 @@
 
 #pragma once
 
+#if ROCPROFSYS_USE_ROCM > 0
+#    include <amd_smi/amdsmi.h>
+#endif
+
 namespace rocprofsys
 {
 namespace gpu
 {
+#if ROCPROFSYS_USE_ROCM > 0
+void
+get_processor_handles();
+
+uint32_t
+get_processor_count();
+
+amdsmi_processor_handle
+get_handle_from_id(uint32_t dev_id);
+
+struct processors
+{
+    static uint32_t                             total_processor_count;
+    static std::vector<amdsmi_processor_handle> processors_list;
+
+private:
+    friend void                    rocprofsys::gpu::get_processor_handles();
+    friend uint32_t                rocprofsys::gpu::get_processor_count();
+    friend amdsmi_processor_handle rocprofsys::gpu::get_handle_from_id(uint32_t dev_id);
+};
+#endif
+
 int
 device_count();
 
-int
-rocm_device_count();
-
-int
-rsmi_device_count();
+bool
+initialize_amdsmi();
 
 void
 add_device_metadata();