DRM_I915_GEM_THROTTLE 325 include/uapi/drm/i915_drm.h #define DRM_I915_GEM_THROTTLE 0x18 DRM_I915_GEM_THROTTLE 325 tools/include/uapi/drm/i915_drm.h #define DRM_I915_GEM_THROTTLE 0x18