Log gpu usage (#21404)

* Log gpu usage

* 100 total

* bump cereal

Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
old-commit-hash: ad7f0207ac9c587c2e1740c61bddad5fbba11296

selfdrive/hardware/base.py

@@ -113,3 +113,7 @@ class HardwareBase:
   @abstractmethod
   def set_power_save(self, enabled):
     pass
+
+  @abstractmethod
+  def get_gpu_usage_percent(self):
+    pass

selfdrive/hardware/eon/hardware.py

@@ -377,3 +377,6 @@ class Android(HardwareBase):
 
   def set_power_save(self, enabled):
     pass
+
+  def get_gpu_usage_percent(self):
+    return 0

selfdrive/hardware/pc/hardware.py

@@ -85,3 +85,6 @@ class Pc(HardwareBase):
 
   def set_power_save(self, enabled):
     pass
+
+  def get_gpu_usage_percent(self):
+    return 0

selfdrive/hardware/tici/hardware.py

@@ -262,3 +262,10 @@ class Tici(HardwareBase):
       # TODO: fix permissions with udev
       val = "0" if enabled else "1"
       os.system(f"sudo su -c 'echo {val} > /sys/devices/system/cpu/cpu{i}/online'")
+
+  def get_gpu_usage_percent(self):
+    try:
+      used, total = open('/sys/class/kgsl/kgsl-3d0/gpubusy').read().strip().split()
+      return 100.0 * int(used) / int(total)
+    except Exception:
+      return 0

selfdrive/thermald/thermald.py

@@ -265,6 +265,7 @@ def thermald_thread():
     msg.deviceState.freeSpacePercent = get_available_percent(default=100.0)
     msg.deviceState.memoryUsagePercent = int(round(psutil.virtual_memory().percent))
     msg.deviceState.cpuUsagePercent = int(round(psutil.cpu_percent()))
+    msg.deviceState.gpuUsagePercent = int(round(HARDWARE.get_gpu_usage_percent()))
     msg.deviceState.networkType = network_type
     msg.deviceState.networkStrength = network_strength
     if network_info is not None: