diff --git a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SessionMode.aidl b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SessionMode.aidl
index d0ae0ba..ffa790d 100644
--- a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SessionMode.aidl
+++ b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SessionMode.aidl
@@ -35,4 +35,5 @@
 @Backing(type="int") @VintfStability
 enum SessionMode {
   POWER_EFFICIENCY,
+  GRAPHICS_PIPELINE,
 }
diff --git a/power/aidl/android/hardware/power/SessionMode.aidl b/power/aidl/android/hardware/power/SessionMode.aidl
index f1ee64e..3d5a76f 100644
--- a/power/aidl/android/hardware/power/SessionMode.aidl
+++ b/power/aidl/android/hardware/power/SessionMode.aidl
@@ -25,4 +25,11 @@
      * and can be safely scheduled to prefer power efficiency.
      */
     POWER_EFFICIENCY,
+
+    /**
+     * This mode indicates that the threads associated with this hint session
+     * are part of the graphics pipeline, implying that they are on a critical path
+     * which will be called of higher priority in terms of CPU resources and scheduling.
+     */
+    GRAPHICS_PIPELINE,
 }