[SWDEV-488303] Adjusted process vram_mem data source (#411)

* [SWDEV-488303] Adjusted process vram_mem data source
* Standardized sscanf format strings

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Signed-off-by: Maisam Arif <Maisam.Arif@amd.com>
Co-authored-by: gabrpham_amdeng <Gabriel.Pham@amd.com>

include/amd_smi/amdsmi.h

@@ -1080,18 +1080,18 @@ typedef uint32_t amdsmi_process_handle_t;
 typedef struct {
     char name[AMDSMI_MAX_STRING_LENGTH];
     amdsmi_process_handle_t pid;
-    uint64_t mem;  //!< In bytes
+    uint64_t mem;  //!< In Bytes
     struct engine_usage_ {
         uint64_t gfx;  //!< In nano-secs
         uint64_t enc;  //!< In nano-secs
         uint32_t reserved[12];
     } engine_usage; //!< time the process spends using these engines in ns
     struct memory_usage_ {
-        uint64_t gtt_mem;   //!< In MB
-        uint64_t cpu_mem;   //!< In MB
-        uint64_t vram_mem;  //!< In MB
+        uint64_t gtt_mem;   //!< In Bytes
+        uint64_t cpu_mem;   //!< In Bytes
+        uint64_t vram_mem;  //!< In Bytes
         uint32_t reserved[10];
-    } memory_usage;  //!< in bytes
+    } memory_usage;  //!< In Bytes
     char container_name[AMDSMI_MAX_STRING_LENGTH];
     uint32_t cu_occupancy;  //!< Num CUs utilized
     uint32_t reserved[11];

include/amd_smi/impl/amd_smi_gpu_device.h

@@ -62,6 +62,7 @@ class AMDSmiGPUDevice: public AMDSmiProcessor {
     uint32_t get_gpu_fd() const;
     uint32_t get_card_id();            // -e feature + we can get card_id for our internal functions
     uint32_t get_drm_render_minor();   // -e feature + we can get card_id for our internal functions
+    uint64_t get_kfd_gpu_id();  // Used to decode vram usage for KFD processes
     std::string& get_gpu_path();
     amdsmi_bdf_t  get_bdf();
     bool check_if_drm_is_supported() { return drm_.check_if_drm_is_supported(); }
@@ -84,6 +85,7 @@ class AMDSmiGPUDevice: public AMDSmiProcessor {
     AMDSmiDrm& drm_;
     uint32_t card_index_;
     uint32_t drm_render_minor_;
+    uint64_t kfd_gpu_id_;  // Used to decode vram usage for KFD processes
     GPUComputeProcessList_t compute_process_list_;
     int32_t get_compute_process_list_impl(GPUComputeProcessList_t& compute_process_list,
                                           ComputeProcessListType_t list_type);