BLM_LEGACY_MODE    95 drivers/gpu/drm/gma500/psb_intel_reg.h #define BLM_LEGACY_MODE			(1 << 16)
BLM_LEGACY_MODE  4857 drivers/gpu/drm/i915/i915_reg.h #define   BLM_LEGACY_MODE			(1 << 16) /* gen2 only */