Add AMD GPU collector (#15515)

5 files changed, 1340 insertions, 1 deletions

diff --git a/collectors/proc.plugin/README.md b/collectors/proc.plugin/README.md
index 6c1335a708..16ae6f4128 100644
--- a/collectors/proc.plugin/README.md
+++ b/collectors/proc.plugin/README.md
@@ -31,6 +31,7 @@ In detail, it collects metrics from:
 -   `/proc/spl/kstat/zfs/pool/state` (state of ZFS pools)
 -   `/sys/class/power_supply` (power supply properties)
 -   `/sys/class/infiniband` (infiniband interconnect)
+-   `/sys/class/drm` (AMD GPUs)
 -   `ipc` (IPC semaphores and message queues)
 -   `ksm` Kernel Same-Page Merging performance (several files under `/sys/kernel/mm/ksm`).
 -   `netdata` (internal Netdata resources utilization)
@@ -579,6 +580,36 @@ Default configuration will monitor only enabled infiniband ports, and refresh ne
   # refresh ports state every seconds = 30
 ```
 
+## AMD GPUs
+
+This module monitors every AMD GPU card discovered at agent startup.
+
+### Monitored GPU metrics
+
+The following charts will be provided:
+
+-   **GPU utilization**
+-   **GPU memory utilization**
+-   **GPU clock frequency**
+-   **GPU memory clock frequency**
+-   **VRAM memory usage percentage**
+-   **VRAM memory usage**
+-   **visible VRAM memory usage percentage**
+-   **visible VRAM memory usage**
+-   **GTT memory usage percentage**
+-   **GTT memory usage**
+
+### configuration
+
+The `drm` path can be configured if it differs from the default:
+
+```
+[plugin:proc:/sys/class/drm]
+  # directory to monitor = /sys/class/drm
+```
+
+> [!NOTE]  
+> Temperature, fan speed, voltage and power metrics for AMD GPUs can be monitored using the [Sensors](https://github.com/netdata/netdata/blob/master/collectors/charts.d.plugin/sensors/README.md) plugin.
 
 ## IPC
 
diff --git a/collectors/proc.plugin/metadata.yaml b/collectors/proc.plugin/metadata.yaml
index e605046f81..b59a6604f1 100644
--- a/collectors/proc.plugin/metadata.yaml
+++ b/collectors/proc.plugin/metadata.yaml
@@ -5180,3 +5180,138 @@ modules:
                 - name: now
                 - name: max
                 - name: max_design
+  - meta:
+      plugin_name: proc.plugin
+      module_name: /sys/class/drm
+      monitored_instance:
+        name: AMD GPU
+        link: "https://www.amd.com"
+        categories:
+          - data-collection.hardware-devices-and-sensors
+        icon_filename: "amd.png"
+      related_resources:
+        integrations:
+          list: []
+      info_provided_to_referring_integrations:
+        description: ""
+      keywords:
+        - amd
+        - gpu
+        - hardware
+      most_popular: false
+    overview:
+      data_collection:
+        metrics_description: "This integration monitors AMD GPU metrics, such as utilization, clock frequency and memory usage."
+        method_description: "It reads `/sys/class/drm` to collect metrics for every AMD GPU card instance it encounters."
+      supported_platforms:
+        include:
+          - Linux
+        exclude: []
+      multi_instance: true
+      additional_permissions:
+        description: ""
+      default_behavior:
+        auto_detection:
+          description: ""
+        limits:
+          description: ""
+        performance_impact:
+          description: ""
+    setup:
+      prerequisites:
+        list: []
+      configuration:
+        file:
+          name: ""
+          description: ""
+        options:
+          description: ""
+          folding:
+            title: ""
+            enabled: true
+          list: []
+        examples:
+          folding:
+            enabled: true
+            title: ""
+          list: []
+    troubleshooting:
+      problems:
+        list: []
+    alerts: []
+    metrics:
+      folding:
+        title: Metrics
+        enabled: false
+      description: ""
+      availability: []
+      scopes:
+        - name: gpu
+          description: "These metrics refer to the GPU."
+          labels:
+            - name: product_name
+              description: GPU product name (e.g. AMD RX 6600)
+          metrics:
+            - name: amdgpu.gpu_utilization
+              description: GPU utilization
+              unit: "percentage"
+              chart_type: line
+              dimensions:
+                - name: utilization
+            - name: amdgpu.gpu_mem_utilization
+              description: GPU memory utilization
+              unit: "percentage"
+              chart_type: line
+              dimensions:
+                - name: utilization
+            - name: amdgpu.gpu_clk_frequency
+              description: GPU clock frequency
+              unit: "MHz"
+              chart_type: line
+              dimensions:
+                - name: frequency
+            - name: amdgpu.gpu_mem_clk_frequency
+              description: GPU memory clock frequency
+              unit: "MHz"
+              chart_type: line
+              dimensions:
+                - name: frequency
+            - name: amdgpu.gpu_mem_vram_usage_perc
+              description: VRAM memory usage percentage
+              unit: "percentage"
+              chart_type: line
+              dimensions:
+                - name: usage
+            - name: amdgpu.gpu_mem_vram_usage
+              description: VRAM memory usage
+              unit: "bytes"
+              chart_type: area
+              dimensions:
+                - name: free
+                - name: used
+            - name: amdgpu.gpu_mem_vis_vram_usage_perc
+              description: visible VRAM memory usage percentage
+              unit: "percentage"
+              chart_type: line
+              dimensions:
+                - name: usage
+            - name: amdgpu.gpu_mem_vis_vram_usage
+              description: visible VRAM memory usage
+              unit: "bytes"
+              chart_type: area
+              dimensions:
+                - name: free
+                - name: used
+            - name: amdgpu.gpu_mem_gtt_usage_perc
+              description: GTT memory usage percentage
+              unit: "percentage"
+              chart_type: line
+              dimensions:
+                - name: usage
+            - name: amdgpu.gpu_mem_gtt_usage
+              description: GTT memory usage
+              unit: "bytes"
+              chart_type: area
+              dimensions:
+                - name: free
+                - name: used
diff --git a/collectors/proc.plugin/plugin_proc.c b/collectors/proc.plugin/plugin_proc.c
index 74e3129370..fbcaa614a5 100644
--- a/collectors/proc.plugin/plugin_proc.c
+++ b/collectors/proc.plugin/plugin_proc.c
@@ -70,8 +70,11 @@ static struct proc_module {
     // IPC metrics
     {.name = "ipc",                          .dim = "ipc",          .func = do_ipc},
 
-    {.name = "/sys/class/power_supply",      .dim = "power_supply", .func = do_sys_class_power_supply},
     // linux power supply metrics
+    {.name = "/sys/class/power_supply",      .dim = "power_supply", .func = do_sys_class_power_supply},
+    
+    // GPU metrics
+    {.name = "/sys/class/drm",               .dim = "drm",          .func = do_sys_class_drm},
 
     // the terminator of this array
     {.name = NULL, .dim = NULL, .func = NULL}
diff --git a/collectors/proc.plugin/plugin_proc.h b/collectors/proc.plugin/plugin_proc.h
index 84c370a450..a90f4838e9 100644
--- a/collectors/proc.plugin/plugin_proc.h
+++ b/collectors/proc.plugin/plugin_proc.h
@@ -46,6 +46,7 @@ int do_ipc(int update_every, usec_t dt);
 int do_sys_class_power_supply(int update_every, usec_t dt);
 int do_proc_pagetypeinfo(int update_every, usec_t dt);
 int do_sys_class_infiniband(int update_every, usec_t dt);
+int do_sys_class_drm(int update_every, usec_t dt);
 int get_numa_node_count(void);
 
 // metrics that need to be shared among data collectors
diff --git a/collectors/proc.plugin/sys_class_drm.c b/collectors/proc.plugin/sys_class_drm.c
new file mode 100644
index 0000000000..de38e9009d
--- /dev/null
+++ b/collectors/proc.plugin/sys_class_drm.c
@@ -0,0 +1,1169 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "plugin_proc.h"
+
+#define PLUGIN_PROC_MODULE_DRM_NAME "/sys/class/drm"
+#define CONFIG_SECTION_PLUGIN_PROC_DRM "plugin:proc:/sys/class/drm"
+#define AMDGPU_CHART_TYPE "amdgpu"
+
+struct amdgpu_id_struct {
+    uint32_t asic_id;
+    uint32_t pci_rev_id;
+    const char *marketing_name;
+};
+
+/* 
+ * About amdgpu_ids list:
+ * ------------------------------------------------------------------------
+ * Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * The list is copied from:
+ * https://raw.githubusercontent.com/Syllo/nvtop/master/src/amdgpu_ids.h
+ * 
+ * which is modified from libdrm (MIT License):
+ *
+ * URL: https://gitlab.freedesktop.org/mesa/drm/-/blob/main/data/amdgpu.ids
+ * ------------------------------------------------------------------------
+ * **IMPORTANT**: The amdgpu_ids has to be modified after new GPU releases. 
+ * ------------------------------------------------------------------------*/
+
+static struct amdgpu_id_struct amdgpu_ids[] = {
+    {0x1309, 0x00, "AMD Radeon R7 Graphics"},
+    {0x130A, 0x00, "AMD Radeon R6 Graphics"},
+    {0x130B, 0x00, "AMD Radeon R4 Graphics"},
+    {0x130C, 0x00, "AMD Radeon R7 Graphics"},
+    {0x130D, 0x00, "AMD Radeon R6 Graphics"},
+    {0x130E, 0x00, "AMD Radeon R5 Graphics"},
+    {0x130F, 0x00, "AMD Radeon R7 Graphics"},
+    {0x130F, 0xD4, "AMD Radeon R7 Graphics"},
+    {0x130F, 0xD5, "AMD Radeon R7 Graphics"},
+    {0x130F, 0xD6, "AMD Radeon R7 Graphics"},
+    {0x130F, 0xD7, "AMD Radeon R7 Graphics"},
+    {0x1313, 0x00, "AMD Radeon R7 Graphics"},
+    {0x1313, 0xD4, "AMD Radeon R7 Graphics"},
+    {0x1313, 0xD5, "AMD Radeon R7 Graphics"},
+    {0x1313, 0xD6, "AMD Radeon R7 Graphics"},
+    {0x1315, 0x00, "AMD Radeon R5 Graphics"},
+    {0x1315, 0xD4, "AMD Radeon R5 Graphics"},
+    {0x1315, 0xD5, "AMD Radeon R5 Graphics"},
+    {0x1315, 0xD6, "AMD Radeon R5 Graphics"},
+    {0x1315, 0xD7, "AMD Radeon R5 Graphics"},
+    {0x1316, 0x00, "AMD Radeon R5 Graphics"},
+    {0x1318, 0x00, "AMD Radeon R5 Graphics"},
+    {0x131B, 0x00, "AMD Radeon R4 Graphics"},
+    {0x131C, 0x00, "AMD Radeon R7 Graphics"},
+    {0x131D, 0x00, "AMD Radeon R6 Graphics"},
+    {0x15D8, 0x00, "AMD Radeon RX Vega 8 Graphics WS"},
+    {0x15D8, 0x91, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0x91, "AMD Ryzen Embedded R1606G with Radeon Vega Gfx"},
+    {0x15D8, 0x92, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0x92, "AMD Ryzen Embedded R1505G with Radeon Vega Gfx"},
+    {0x15D8, 0x93, "AMD Radeon Vega 1 Graphics"},
+    {0x15D8, 0xA1, "AMD Radeon Vega 10 Graphics"},
+    {0x15D8, 0xA2, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xA3, "AMD Radeon Vega 6 Graphics"},
+    {0x15D8, 0xA4, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xB1, "AMD Radeon Vega 10 Graphics"},
+    {0x15D8, 0xB2, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xB3, "AMD Radeon Vega 6 Graphics"},
+    {0x15D8, 0xB4, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xC1, "AMD Radeon Vega 10 Graphics"},
+    {0x15D8, 0xC2, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xC3, "AMD Radeon Vega 6 Graphics"},
+    {0x15D8, 0xC4, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xC5, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xC8, "AMD Radeon Vega 11 Graphics"},
+    {0x15D8, 0xC9, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xCA, "AMD Radeon Vega 11 Graphics"},
+    {0x15D8, 0xCB, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xCC, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xCE, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xCF, "AMD Ryzen Embedded R1305G with Radeon Vega Gfx"},
+    {0x15D8, 0xD1, "AMD Radeon Vega 10 Graphics"},
+    {0x15D8, 0xD2, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xD3, "AMD Radeon Vega 6 Graphics"},
+    {0x15D8, 0xD4, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xD8, "AMD Radeon Vega 11 Graphics"},
+    {0x15D8, 0xD9, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xDA, "AMD Radeon Vega 11 Graphics"},
+    {0x15D8, 0xDB, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xDB, "AMD Radeon Vega 8 Graphics"},
+    {0x15D8, 0xDC, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xDD, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xDE, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xDF, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xE3, "AMD Radeon Vega 3 Graphics"},
+    {0x15D8, 0xE4, "AMD Ryzen Embedded R1102G with Radeon Vega Gfx"},
+    {0x15DD, 0x81, "AMD Ryzen Embedded V1807B with Radeon Vega Gfx"},
+    {0x15DD, 0x82, "AMD Ryzen Embedded V1756B with Radeon Vega Gfx"},
+    {0x15DD, 0x83, "AMD Ryzen Embedded V1605B with Radeon Vega Gfx"},
+    {0x15DD, 0x84, "AMD Radeon Vega 6 Graphics"},
+    {0x15DD, 0x85, "AMD Ryzen Embedded V1202B with Radeon Vega Gfx"},
+    {0x15DD, 0x86, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0x88, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xC1, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0xC2, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xC3, "AMD Radeon Vega 3 / 10 Graphics"},
+    {0x15DD, 0xC4, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xC5, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xC6, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0xC8, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xC9, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0xCA, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xCB, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xCC, "AMD Radeon Vega 6 Graphics"},
+    {0x15DD, 0xCE, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xCF, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xD0, "AMD Radeon Vega 10 Graphics"},
+    {0x15DD, 0xD1, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xD3, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0xD5, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xD6, "AMD Radeon Vega 11 Graphics"},
+    {0x15DD, 0xD7, "AMD Radeon Vega 8 Graphics"},
+    {0x15DD, 0xD8, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xD9, "AMD Radeon Vega 6 Graphics"},
+    {0x15DD, 0xE1, "AMD Radeon Vega 3 Graphics"},
+    {0x15DD, 0xE2, "AMD Radeon Vega 3 Graphics"},
+    {0x163F, 0xAE, "AMD Custom GPU 0405"},
+    {0x6600, 0x00, "AMD Radeon HD 8600 / 8700M"},
+    {0x6600, 0x81, "AMD Radeon R7 M370"},
+    {0x6601, 0x00, "AMD Radeon HD 8500M / 8700M"},
+    {0x6604, 0x00, "AMD Radeon R7 M265 Series"},
+    {0x6604, 0x81, "AMD Radeon R7 M350"},
+    {0x6605, 0x00, "AMD Radeon R7 M260 Series"},
+    {0x6605, 0x81, "AMD Radeon R7 M340"},
+    {0x6606, 0x00, "AMD Radeon HD 8790M"},
+    {0x6607, 0x00, "AMD Radeon R5 M240"},
+    {0x6608, 0x00, "AMD FirePro W2100"},
+    {0x6610, 0x00, "AMD Radeon R7 200 Series"},
+    {0x6610, 0x81, "AMD Radeon R7 350"},
+    {0x6610, 0x83, "AMD Radeon R5 340"},
+    {0x6610, 0x87, "AMD Radeon R7 200 Series"},
+    {0x6611, 0x00, "AMD Radeon R7 200 Series"},
+    {0x6611, 0x87, "AMD Radeon R7 200 Series"},
+    {0x6613, 0x00, "AMD Radeon R7 200 Series"},
+    {0x6617, 0x00, "AMD Radeon R7 240 Series"},
+    {0x6617, 0x87, "AMD Radeon R7 200 Series"},
+    {0x6617, 0xC7, "AMD Radeon R7 240 Series"},
+    {0x6640, 0x00, "AMD Radeon HD 8950"},
+    {0x6640, 0x80, "AMD Radeon R9 M380"},
+    {0x6646, 0x00, "AMD Radeon R9 M280X"},
+    {0x6646, 0x80, "AMD Radeon R9 M385"},
+    {0x6646, 0x80, "AMD Radeon R9 M470X"},
+    {0x6647, 0x00, "AMD Radeon R9 M200X Series"},
+    {0x6647, 0x80, "AMD Radeon R9 M380"},
+    {0x6649, 0x00, "AMD FirePro W5100"},
+    {0x6658, 0x00, "AMD Radeon R7 200 Series"},
+    {0x665C, 0x00, "AMD Radeon HD 7700 Series"},
+    {0x665D, 0x00, "AMD Radeon R7 200 Series"},
+    {0x665F, 0x81, "AMD Radeon R7 360 Series"},
+    {0x6660, 0x00, "AMD Radeon HD 8600M Series"},
+    {0x6660, 0x81, "AMD Radeon R5 M335"},
+    {0x6660, 0x83, "AMD Radeon R5 M330"},
+    {0x6663, 0x00, "AMD Radeon HD 8500M Series"},
+    {0x6663, 0x83, "AMD Radeon R5 M320"},
+    {0x6664, 0x00, "AMD Radeon R5 M200 Series"},
+    {0x6665, 0x00, "AMD Radeon R5 M230 Series"},
+    {0x6665, 0x83, "AMD Radeon R5 M320"},
+    {0x6665, 0xC3, "AMD Radeon R5 M435"},
+    {0x6666, 0x00, "AMD Radeon R5 M200 Series"},
+    {0x6667, 0x00, "AMD Radeon R5 M200 Series"},
+    {0x666F, 0x00, "AMD Radeon HD 8500M"},
+    {0x66A1, 0x02, "AMD Instinct MI60 / MI50"},
+    {0x66A1, 0x06, "AMD Radeon Pro VII"},
+    {0x66AF, 0xC1, "AMD Radeon VII"},
+    {0x6780, 0x00, "AMD FirePro W9000"},
+    {0x6784, 0x00, "ATI FirePro V (FireGL V) Graphics Adapter"},
+    {0x6788, 0x00, "ATI FirePro V (FireGL V) Graphics Adapter"},
+    {0x678A, 0x00, "AMD FirePro W8000"},
+    {0x6798, 0x00, "AMD Radeon R9 200 / HD 7900 Series"},
+    {0x6799, 0x00, "AMD Radeon HD 7900 Series"},
+    {0x679A, 0x00, "AMD Radeon HD 7900 Series"},
+    {0x679B, 0x00, "AMD Radeon HD 7900 Series"},
+    {0x679E, 0x00, "AMD Radeon HD 7800 Series"},
+    {0x67A0, 0x00, "AMD Radeon FirePro W9100"},
+    {0x67A1, 0x00, "AMD Radeon FirePro W8100"},
+    {0x67B0, 0x00, "AMD Radeon R9 200 Series"},
+    {0x67B0, 0x80, "AMD Radeon R9 390 Series"},
+    {0x67B1, 0x00, "AMD Radeon R9 200 Series"},
+    {0x67B1, 0x80, "AMD Radeon R9 390 Series"},
+    {0x67B9, 0x00, "AMD Radeon R9 200 Series"},
+    {0x67C0, 0x00, "AMD Radeon Pro WX 7100 Graphics"},
+    {0x67C0, 0x80, "AMD Radeon E9550"},
+    {0x67C2, 0x01, "AMD Radeon Pro V7350x2"},
+    {0x67C2, 0x02, "AMD Radeon Pro V7300X"},
+    {0x67C4, 0x00, "AMD Radeon Pro WX 7100 Graphics"},
+    {0x67C4, 0x80, "AMD Radeon E9560 / E9565 Graphics"},
+    {0x67C7, 0x00, "AMD Radeon Pro WX 5100 Graphics"},
+    {0x67C7, 0x80, "AMD Radeon E9390 Graphics"},
+    {0x67D0, 0x01, "AMD Radeon Pro V7350x2"},
+    {0x67D0, 0x02, "AMD Radeon Pro V7300X"},
+    {0x67DF, 0xC0, "AMD Radeon Pro 580X"},
+    {0x67DF, 0xC1, "AMD Radeon RX 580 Series"},
+    {0x67DF, 0xC2, "AMD Radeon RX 570 Series"},
+    {0x67DF, 0xC3, "AMD Radeon RX 580 Series"},
+    {0x67DF, 0xC4, "AMD Radeon RX 480 Graphics"},
+    {0x67DF, 0xC5, "AMD Radeon RX 470 Graphics"},
+    {0x67DF, 0xC6, "AMD Radeon RX 570 Series"},
+    {0x67DF, 0xC7, "AMD Radeon RX 480 Graphics"},
+    {0x67DF, 0xCF, "AMD Radeon RX 470 Graphics"},
+    {0x67DF, 0xD7, "AMD Radeon RX 470 Graphics"},
+    {0x67DF, 0xE0, "AMD Radeon RX 470 Series"},
+    {0x67DF, 0xE1, "AMD Radeon RX 590 Series"},
+    {0x67DF, 0xE3, "AMD Radeon RX Series"},
+    {0x67DF, 0xE7, "AMD Radeon RX 580 Series"},
+    {0x67DF, 0xEB, "AMD Radeon Pro 580X"},
+    {0x67DF, 0xEF, "AMD Radeon RX 570 Series"},
+    {0x67DF, 0xF7, "AMD Radeon RX P30PH"},
+    {0x67DF, 0xFF, "AMD Radeon RX 470 Series"},
+    {0x67E0, 0x00, "AMD Radeon Pro WX Series"},
+    {0x67E3, 0x00, "AMD Radeon Pro WX 4100"},
+    {0x67E8, 0x00, "AMD Radeon Pro WX Series"},
+    {0x67E8, 0x01, "AMD Radeon Pro WX Series"},
+    {0x67E8, 0x80, "AMD Radeon E9260 Graphics"},
+    {0x67EB, 0x00, "AMD Radeon Pro V5300X"},
+    {0x67EF, 0xC0, "AMD Radeon RX Graphics"},
+    {0x67EF, 0xC1, "AMD Radeon RX 460 Graphics"},
+    {0x67EF, 0xC2, "AMD Radeon Pro Series"},
+    {0x67EF, 0xC3, "AMD Radeon RX Series"},
+    {0x67EF, 0xC5, "AMD Radeon RX 460 Graphics"},
+    {0x67EF, 0xC7, "AMD Radeon RX Graphics"},
+    {0x67EF, 0xCF, "AMD Radeon RX 460 Graphics"},
+    {0x67EF, 0xE0, "AMD Radeon RX 560 Series"},
+    {0x67EF, 0xE1, "AMD Radeon RX Series"},
+    {0x67EF, 0xE2, "AMD Radeon RX 560X"},
+    {0x67EF, 0xE3, "AMD Radeon RX Series"},
+    {0x67EF, 0xE5, "AMD Radeon RX 560 Series"},
+    {0x67EF, 0xE7, "AMD Radeon RX 560 Series"},
+    {0x67EF, 0xEF, "AMD Radeon 550 Series"},
+    {0x67EF, 0xFF, "AMD Radeon RX 460 Graphics"},
+    {0x67FF, 0xC0, "AMD Radeon Pro 465"},
+    {0x67FF, 0xC1, "AMD Radeon RX 560 Series"},
+    {0x67FF, 0xCF, "AMD Radeon RX 560 Series"},
+    {0x67FF, 0xEF, "AMD Radeon RX 560 Series"},
+    {0x67FF, 0xFF, "AMD Radeon RX 550 Series"},
+    {0x6800, 0x00, "AMD Radeon HD 7970M"},
+    {0x6801, 0x00, "AMD Radeon HD 8970M"},
+    {0x6806, 0x00, "AMD Radeon R9 M290X"},
+    {0x6808, 0x00, "AMD FirePro W7000"},
+    {0x6808, 0x00, "ATI FirePro V (FireGL V) Graphics Adapter"},
+    {0x6809, 0x00, "ATI FirePro W5000"},
+    {0x6810, 0x00, "AMD Radeon R9 200 Series"},
+    {0x6810, 0x81, "AMD Radeon R9 370 Series"},
+    {0x6811, 0x00, "AMD Radeon R9 200 Series"},
+    {0x6811, 0x81, "AMD Radeon R7 370 Series"},
+    {0x6818, 0x00, "AMD Radeon HD 7800 Series"},
+    {0x6819, 0x00, "AMD Radeon HD 7800 Series"},
+    {0x6820, 0x00, "AMD Radeon R9 M275X"},
+    {0x6820, 0x81, "AMD Radeon R9 M375"},
+    {0x6820, 0x83, "AMD Radeon R9 M375X"},
+    {0x6821, 0x00, "AMD Radeon R9 M200X Series"},
+    {0x6821, 0x83, "AMD Radeon R9 M370X"},
+    {0x6821, 0x87, "AMD Radeon R7 M380"},
+    {0x6822, 0x00, "AMD Radeon E8860"},
+    {0x6823, 0x00, "AMD Radeon R9 M200X Series"},
+    {0x6825, 0x00, "AMD Radeon HD 7800M Series"},
+    {0x6826, 0x00, "AMD Radeon HD 7700M Series"},
+    {0x6827, 0x00, "AMD Radeon HD 7800M Series"},
+    {0x6828, 0x00, "AMD FirePro W600"},
+    {0x682B, 0x00, "AMD Radeon HD 8800M Series"},
+    {0x682B, 0x87, "AMD Radeon R9 M360"},
+    {0x682C, 0x00, "AMD FirePro W4100"},
+    {0x682D, 0x00, "AMD Radeon HD 7700M Series"},
+    {0x682F, 0x00, "AMD Radeon HD 7700M Series"},
+    {0x6830, 0x00, "AMD Radeon 7800M Series"},
+    {0x6831, 0x00, "AMD Radeon 7700M Series"},
+    {0x6835, 0x00, "AMD Radeon R7 Series / HD 9000 Series"},
+    {0x6837, 0x00, "AMD Radeon HD 7700 Series"},
+    {0x683D, 0x00, "AMD Radeon HD 7700 Series"},
+    {0x683F, 0x00, "AMD Radeon HD 7700 Series"},
+    {0x684C, 0x00, "ATI FirePro V (FireGL V) Graphics Adapter"},
+    {0x6860, 0x00, "AMD Radeon Instinct MI25"},
+    {0x6860, 0x01, "AMD Radeon Instinct MI25"},
+    {0x6860, 0x02, "AMD Radeon Instinct MI25"},
+    {0x6860, 0x03, "AMD Radeon Pro V340"},
+    {0x6860, 0x04, "AMD Radeon Instinct MI25x2"},
+    {0x6860, 0x07, "AMD Radeon Pro V320"},
+    {0x6861, 0x00, "AMD Radeon Pro WX 9100"},
+    {0x6862, 0x00, "AMD Radeon Pro SSG"},
+    {0x6863, 0x00, "AMD Radeon Vega Frontier Edition"},
+    {0x6864, 0x03, "AMD Radeon Pro V340"},
+    {0x6864, 0x04, "AMD Radeon Instinct MI25x2"},
+    {0x6864, 0x05, "AMD Radeon Pro V340"},
+    {0x6868, 0x00, "AMD Radeon Pro WX 8200"},
+    {0x686C, 0x00, "AMD Radeon Instinct MI25 MxGPU"},
+    {0x686C, 0x01, "AMD Radeon Instinct MI25 MxGPU"},
+    {0x686C, 0x02, "AMD Radeon Instinct MI25 MxGPU"},
+    {0x686C, 0x03, "AMD Radeon Pro V340 MxGPU"},
+    {0x686C, 0x04, "AMD Radeon Instinct MI25x2 MxGPU"},
+    {0x686C, 0x05, "AMD Radeon Pro V340L MxGPU"},
+    {0x686C, 0x06, "AMD Radeon Instinct MI25 MxGPU"},
+    {0x687F, 0x01, "AMD Radeon RX Vega"},
+    {0x687F, 0xC0, "AMD Radeon RX Vega"},
+    {0x687F, 0xC1, "AMD Radeon RX Vega"},
+    {0x687F, 0xC3, "AMD Radeon RX Vega"},
+    {0x687F, 0xC7, "AMD Radeon RX Vega"},
+    {0x6900, 0x00, "AMD Radeon R7 M260"},
+    {0x6900, 0x81, "AMD Radeon R7 M360"},
+    {0x6900, 0x83, "AMD Radeon R7 M340"},
+    {0x6900, 0xC1, "AMD Radeon R5 M465 Series"},
+    {0x6900, 0xC3, "AMD Radeon R5 M445 Series"},
+    {0x6900, 0xD1, "AMD Radeon 530 Series"},
+    {0x6900, 0xD3, "AMD Radeon 530 Series"},
+    {0x6901, 0x00, "AMD Radeon R5 M255"},
+    {0x6902, 0x00, "AMD Radeon Series"},
+    {0x6907, 0x00, "AMD Radeon R5 M255"},
+    {0x6907, 0x87, "AMD Radeon R5 M315"},
+    {0x6920, 0x00, "AMD Radeon R9 M395X"},
+    {0x6920, 0x01, "AMD Radeon R9 M390X"},
+    {0x6921, 0x00, "AMD Radeon R9 M390X"},
+    {0x6929, 0x00, "AMD FirePro S7150"},
+    {0x6929, 0x01, "AMD FirePro S7100X"},
+    {0x692B, 0x00, "AMD FirePro W7100"},
+    {0x6938, 0x00, "AMD Radeon R9 200 Series"},
+    {0x6938, 0xF0, "AMD Radeon R9 200 Series"},
+    {0x6938, 0xF1, "AMD Radeon R9 380 Series"},
+    {0x6939, 0x00, "AMD Radeon R9 200 Series"},
+    {0x6939, 0xF0, "AMD Radeon R9 200 Series"},
+    {0x6939, 0xF1, "AMD Radeon R9 380 Series"},
+    {0x694C, 0xC0, "AMD Radeon RX Vega M GH Graphics"},
+    {0x694E, 0xC0, "AMD Radeon RX Vega M GL Graphics"},
+    {0x6980, 0x00, "AMD Radeon Pro WX 3100"},
+    {0x6981, 0x00, "AMD Radeon Pro WX 3200 Series"},
+    {0x6981, 0x01, "AMD Radeon Pro WX 3200 Series"},
+    {0x6981, 0x10, "AMD Radeon Pro WX 3200 Series"},
+    {0x6985, 0x00, "AMD Radeon Pro WX 3100"},
+    {0x6986, 0x00, "AMD Radeon Pro WX 2100"},
+    {0x6987, 0x80, "AMD Embedded Radeon E9171"},
+    {0x6987, 0xC0, "AMD Radeon 550X Series"},
+    {0x6987, 0xC1, "AMD Radeon RX 640"},
+    {0x6987, 0xC3, "AMD Radeon 540X Series"},
+    {0x6987, 0xC7, "AMD Radeon 540"},
+    {0x6995, 0x00, "AMD Radeon Pro WX 2100"},
+    {0x6997, 0x00, "AMD Radeon Pro WX 2100"},
+    {0x699F, 0x81, "AMD Embedded Radeon E9170 Series"},
+    {0x699F, 0xC0, "AMD Radeon 500 Series"},
+    {0x699F, 0xC1, "AMD Radeon 540 Series"},
+    {0x699F, 0xC3, "AMD Radeon 500 Series"},
+    {0x699F, 0xC7, "AMD Radeon RX 550 / 550 Series"},
+    {0x699F, 0xC9, "AMD Radeon 540"},
+    {0x6FDF, 0xE7, "AMD Radeon RX 590 GME"},
+    {0x6FDF, 0xEF, "AMD Radeon RX 580 2048SP"},
+    {0x7300, 0xC1, "AMD FirePro S9300 x2"},
+    {0x7300, 0xC8, "AMD Radeon R9 Fury Series"},
+    {0x7300, 0xC9, "AMD Radeon Pro Duo"},
+    {0x7300, 0xCA, "AMD Radeon R9 Fury Series"},
+    {0x7300, 0xCB, "AMD Radeon R9 Fury Series"},
+    {0x7312, 0x00, "AMD Radeon Pro W5700"},
+    {0x731E, 0xC6, "AMD Radeon RX 5700XTB"},
+    {0x731E, 0xC7, "AMD Radeon RX 5700B"},
+    {0x731F, 0xC0, "AMD Radeon RX 5700 XT 50th Anniversary"},
+    {0x731F, 0xC1, "AMD Radeon RX 5700 XT"},
+    {0x731F, 0xC2, "AMD Radeon RX 5600M"},
+    {0x731F, 0xC3, "AMD Radeon RX 5700M"},
+    {0x731F, 0xC4, "AMD Radeon RX 5700"},
+    {0x731F, 0xC5, "AMD Radeon RX 5700 XT"},
+    {0x731F, 0xCA, "AMD Radeon RX 5600 XT"},
+    {0x731F, 0xCB, "AMD Radeon RX 5600 OEM"},
+    {0x7340, 0xC1, "AMD Radeon RX 5500M"},
+    {0x7340, 0xC3, "AMD Radeon RX 5300M"},
+    {0x7340, 0xC5, "AMD Radeon RX 5500 XT"},
+    {0x7340, 0xC7, "AMD Radeon RX 5500"},
+    {0x7340, 0xC9, "AMD Radeon RX 5500XTB"},
+    {0x7340, 0xCF, "AMD Radeon RX 5300"},
+    {0x7341, 0x00, "AMD Radeon Pro W5500"},
+    {0x7347, 0x00, "AMD Radeon Pro W5500M"},
+    {0x7360, 0x41, "AMD Radeon Pro 5600M"},
+    {0x7360, 0xC3, "AMD Radeon Pro V520"},
+    {0x738C, 0x01, "AMD Instinct MI100"},
+    {0x73A3, 0x00, "AMD Radeon Pro W6800"},
+    {0x73A5, 0xC0, "AMD Radeon RX 6950 XT"},
+    {0x73AF, 0xC0, "AMD Radeon RX 6900 XT"},
+    {0x73BF, 0xC0, "AMD Radeon RX 6900 XT"},
+    {0x73BF, 0xC1, "AMD Radeon RX 6800 XT"},
+    {0x73BF, 0xC3, "AMD Radeon RX 6800"},
+    {0x73DF, 0xC0, "AMD Radeon RX 6750 XT"},
+    {0x73DF, 0xC1, "AMD Radeon RX 6700 XT"},
+    {0x73DF, 0xC2, "AMD Radeon RX 6800M"},
+    {0x73DF, 0xC3, "AMD Radeon RX 6800M"},
+    {0x73DF, 0xC5, "AMD Radeon RX 6700 XT"},
+    {0x73DF, 0xCF, "AMD Radeon RX 6700M"},
+    {0x73DF, 0xD7, "AMD TDC-235"},
+    {0x73E1, 0x00, "AMD Radeon Pro W6600M"},
+    {0x73E3, 0x00, "AMD Radeon Pro W6600"},
+    {0x73EF, 0xC0, "AMD Radeon RX 6800S"},
+    {0x73EF, 0xC1, "AMD Radeon RX 6650 XT"},
+    {0x73EF, 0xC2, "AMD Radeon RX 6700S"},
+    {0x73EF, 0xC3, "AMD Radeon RX 6650M"},
+    {0x73EF, 0xC4, "AMD Radeon RX 6650M XT"},
+    {0x73FF, 0xC1, "AMD Radeon RX 6600 XT"},
+    {0x73FF, 0xC3, "AMD Radeon RX 6600M"},
+    {0x73FF, 0xC7, "AMD Radeon RX 6600"},
+    {0x73FF, 0xCB, "AMD Radeon RX 6600S"},
+    {0x7408, 0x00, "AMD Instinct MI250X"},
+    {0x740C, 0x01, "AMD Instinct MI250X / MI250"},
+    {0x740F, 0x02, "AMD Instinct MI210"},
+    {0x7421, 0x00, "AMD Radeon Pro W6500M"},
+    {0x7422, 0x00, "AMD Radeon Pro W6400"},
+    {0x7423, 0x00, "AMD Radeon Pro W6300M"},
+    {0x7423, 0x01, "AMD Radeon Pro W6300"},
+    {0x7424, 0x00, "AMD Radeon RX 6300"},
+    {0x743F, 0xC1, "AMD Radeon RX 6500 XT"},
+    {0x743F, 0xC3, "AMD Radeon RX 6500"},
+    {0x743F, 0xC3, "AMD Radeon RX 6500M"},
+    {0x743F, 0xC7, "AMD Radeon RX 6400"},
+    {0x743F, 0xCF, "AMD Radeon RX 6300M"},
+    {0x744C, 0xC8, "AMD Radeon RX 7900 XTX"},
+    {0x744C, 0xCC, "AMD Radeon RX 7900 XT"},
+    {0x7480, 0xC1, "AMD Radeon RX 7700S"},
+    {0x7480, 0xC3, "AMD Radeon RX 7600S"},
+    {0x7480, 0xC7, "AMD Radeon RX 7600M XT"},
+    {0x7483, 0xCF, "AMD Radeon RX 7600M"},
+    {0x9830, 0x00, "AMD Radeon HD 8400 / R3 Series"},
+    {0x9831, 0x00, "AMD Radeon HD 8400E"},
+    {0x9832, 0x00, "AMD Radeon HD 8330"},
+    {0x9833, 0x00, "AMD Radeon HD 8330E"},
+    {0x9834, 0x00, "AMD Radeon HD 8210"},
+    {0x9835, 0x00, "AMD Radeon HD 8210E"},
+    {0x9836, 0x00, "AMD Radeon HD 8200 / R3 Series"},
+    {0x9837, 0x00, "AMD Radeon HD 8280E"},
+    {0x9838, 0x00, "AMD Radeon HD 8200 / R3 series"},
+    {0x9839, 0x00, "AMD Radeon HD 8180"},
+    {0x983D, 0x00, "AMD Radeon HD 8250"},
+    {0x9850, 0x00, "AMD Radeon R3 Graphics"},
+    {0x9850, 0x03, "AMD Radeon R3 Graphics"},
+    {0x9850, 0x40, "AMD Radeon R2 Graphics"},
+    {0x9850, 0x45, "AMD Radeon R3 Graphics"},
+    {0x9851, 0x00, "AMD Radeon R4 Graphics"},
+    {0x9851, 0x01, "AMD Radeon R5E Graphics"},
+    {0x9851, 0x05, "AMD Radeon R5 Graphics"},
+    {0x9851, 0x06, "AMD Radeon R5E Graphics"},
+    {0x9851, 0x40, "AMD Radeon R4 Graphics"},
+    {0x9851, 0x45, "AMD Radeon R5 Graphics"},
+    {0x9852, 0x00, "AMD Radeon R2 Graphics"},
+    {0x9852, 0x40, "AMD Radeon E1 Graphics"},
+    {0x9853, 0x00, "AMD Radeon R2 Graphics"},
+    {0x9853, 0x01, "AMD Radeon R4E Graphics"},
+    {0x9853, 0x03, "AMD Radeon R2 Graphics"},
+    {0x9853, 0x05, "AMD Radeon R1E Graphics"},
+    {0x9853, 0x06, "AMD Radeon R1E Graphics"},
+    {0x9853, 0x07, "AMD Radeon R1E Graphics"},
+    {0x9853, 0x08, "AMD Radeon R1E Graphics"},
+    {0x9853, 0x40, "AMD Radeon R2 Graphics"},
+    {0x9854, 0x00, "AMD Radeon R3 Graphics"},
+    {0x9854, 0x01, "AMD Radeon R3E Graphics"},
+    {0x9854, 0x02, "AMD Radeon R3 Graphics"},
+    {0x9854, 0x05, "AMD Radeon R2 Graphics"},
+    {0x9854, 0x06, "AMD Radeon R4 Graphics"},
+    {0x9854, 0x07, "AMD Radeon R3 Graphics"},
+    {0x9855, 0x02, "AMD Radeon R6 Graphics"},
+    {0x9855, 0x05, "AMD Radeon R4 Graphics"},
+    {0x9856, 0x00, "AMD Radeon R2 Graphics"},
+    {0x9856, 0x01, "AMD Radeon R2E Graphics"},
+    {0x9856, 0x02, "AMD Radeon R2 Graphics"},
+    {0x9856, 0x05, "AMD Radeon R1E Graphics"},
+    {0x9856, 0x06, "AMD Radeon R2 Graphics"},
+    {0x9856, 0x07, "AMD Radeon R1E Graphics"},
+    {0x9856, 0x08, "AMD Radeon R1E Graphics"},
+    {0x9856, 0x13, "AMD Radeon R1E Graphics"},
+    {0x9874, 0x81, "AMD Radeon R6 Graphics"},
+    {0x9874, 0x84, "AMD Radeon R7 Graphics"},
+    {0x9874, 0x85, "AMD Radeon R6 Graphics"},
+    {0x9874, 0x87, "AMD Radeon R5 Graphics"},
+    {0x9874, 0x88, "AMD Radeon R7E Graphics"},
+    {0x9874, 0x89, "AMD Radeon R6E Graphics"},
+    {0x9874, 0xC4, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xC5, "AMD Radeon R6 Graphics"},
+    {0x9874, 0xC6, "AMD Radeon R6 Graphics"},
+    {0x9874, 0xC7, "AMD Radeon R5 Graphics"},
+    {0x9874, 0xC8, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xC9, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xCA, "AMD Radeon R5 Graphics"},
+    {0x9874, 0xCB, "AMD Radeon R5 Graphics"},
+    {0x9874, 0xCC, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xCD, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xCE, "AMD Radeon R5 Graphics"},
+    {0x9874, 0xE1, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xE2, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xE3, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xE4, "AMD Radeon R7 Graphics"},
+    {0x9874, 0xE5, "AMD Radeon R5 Graphics"},
+    {0x9874, 0xE6, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0x80, "AMD Radeon R5E Graphics"},
+    {0x98E4, 0x81, "AMD Radeon R4E Graphics"},
+    {0x98E4, 0x83, "AMD Radeon R2E Graphics"},
+    {0x98E4, 0x84, "AMD Radeon R2E Graphics"},
+    {0x98E4, 0x86, "AMD Radeon R1E Graphics"},
+    {0x98E4, 0xC0, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xC1, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xC2, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xC4, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xC6, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xC8, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xC9, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xCA, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xD0, "AMD Radeon R2 Graphics"},
+    {0x98E4, 0xD1, "AMD Radeon R2 Graphics"},
+    {0x98E4, 0xD2, "AMD Radeon R2 Graphics"},
+    {0x98E4, 0xD4, "AMD Radeon R2 Graphics"},
+    {0x98E4, 0xD9, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xDA, "AMD Radeon R5 Graphics"},
+    {0x98E4, 0xDB, "AMD Radeon R3 Graphics"},
+    {0x98E4, 0xE1, "AMD Radeon R3 Graphics"},
+    {0x98E4, 0xE2, "AMD Radeon R3 Graphics"},
+    {0x98E4, 0xE9, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xEA, "AMD Radeon R4 Graphics"},
+    {0x98E4, 0xEB, "AMD Radeon R3 Graphics"},
+    {0x98E4, 0xEC, "AMD Radeon R4 Graphics"},
+    {0x0000, 0x00, "unknown AMD GPU"} // this must always be the last item
+};
+
+struct card {
+    const char *pathname;
+    struct amdgpu_id_struct id;
+
+    /* GPU and VRAM utilizations */
+
+    const char *pathname_util_gpu;
+    RRDSET  *st_util_gpu;
+    RRDDIM  *rd_util_gpu;
+    collected_number util_gpu;
+
+    const char *pathname_util_mem;
+    RRDSET  *st_util_mem;
+    RRDDIM  *rd_util_mem;
+    collected_number util_mem;
+
+
+    /* GPU and VRAM clock frequencies */
+
+    const char *pathname_clk_gpu;
+    procfile *ff_clk_gpu;
+    RRDSET *st_clk_gpu;
+    RRDDIM *rd_clk_gpu;
+    collected_number clk_gpu;
+
+    const char *pathname_clk_mem;
+    procfile *ff_clk_mem;
+    RRDSET *st_clk_mem;
+    RRDDIM *rd_clk_mem;
+    collected_number clk_mem;
+
+
+    /* GPU memory usage */
+
+    const char *pathname_mem_used_vram;
+    const char *pathname_mem_total_vram;
+
+    RRDSET  *st_mem_usage_perc_vram;
+    RRDDIM  *rd_mem_used_perc_vram;
+
+    RRDSET  *st_mem_usage_vram;
+    RRDDIM  *rd_mem_used_vram;
+    RRDDIM  *rd_mem_free_vram;
+
+    collected_number used_vram;
+    collected_number total_vram;
+
+
+    const char *pathname_mem_used_vis_vram;
+    const char *pathname_mem_total_vis_vram;
+
+    RRDSET  *st_mem_usage_perc_vis_vram;
+    RRDDIM  *rd_mem_used_perc_vis_vram;
+
+    RRDSET  *st_mem_usage_vis_vram;
+    RRDDIM  *rd_mem_used_vis_vram;
+    RRDDIM  *rd_mem_free_vis_vram;
+
+    collected_number used_vis_vram;
+    collected_number total_vis_vram;
+
+
+    const char *pathname_mem_used_gtt;
+    const char *pathname_mem_total_gtt;
+
+    RRDSET  *st_mem_usage_perc_gtt;
+    RRDDIM  *rd_mem_used_perc_gtt;
+
+    RRDSET  *st_mem_usage_gtt;
+    RRDDIM  *rd_mem_used_gtt;
+    RRDDIM  *rd_mem_free_gtt;
+    
+    collected_number used_gtt;
+    collected_number total_gtt;
+    
+    struct do_rrd_x *do_rrd_x_root;
+    
+    struct card *next;
+};
+static struct card *card_root = NULL;
+
+static void card_free(struct card *c){
+    if(c->pathname) freez((void *) c->pathname);
+    if(c->id.marketing_name) freez((void *) c->id.marketing_name);
+
+    /* remove card from linked list */
+    if(c == card_root) card_root = c->next;
+    else {
+        struct card *last;
+        for(last = card_root; last && last->next != c; last = last->next);
+        if(last) last->next = c->next;
+    }
+
+    freez(c);
+}
+
+static int check_card_is_amdgpu(const char *const pathname){