i915_ggtt_probe_hw 1245 drivers/gpu/drm/i915/i915_drv.c 	ret = i915_ggtt_probe_hw(dev_priv);
i915_ggtt_probe_hw  554 drivers/gpu/drm/i915/i915_gem_gtt.h int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv);