Linux: add GPU meter and process column

Based on the DRM client usage stats[1] add statistics for GPU time spend
and percentage utilization.

[1]: https://www.kernel.org/doc/html/latest/gpu/drm-usage-stats.html

1 files changed, 9 insertions, 0 deletions

diff --git a/linux/LinuxMachine.h b/linux/LinuxMachine.h
index 309b4850..398d1d77 100644
--- a/linux/LinuxMachine.h
+++ b/linux/LinuxMachine.h
@@ -53,6 +53,12 @@ typedef struct CPUData_ {
    bool online;
 } CPUData;
 
+typedef struct GPUEngineData_ {
+   unsigned long long int prevTime, curTime;  /* absolute GPU time in nano seconds */
+   char* key;                                 /* engine name */
+   struct GPUEngineData_* next;
+} GPUEngineData;
+
 typedef struct LinuxMachine_ {
    Machine super;
 
@@ -73,6 +79,9 @@ typedef struct LinuxMachine_ {
 
    memory_t availableMem;
 
+   unsigned long long int prevGpuTime, curGpuTime;  /* total absolute GPU time in nano seconds */
+   GPUEngineData* gpuEngineData;
+
    ZfsArcStats zfs;
    ZramStats zram;
    ZswapStats zswap;