I830_GMCH_GMS_STOLEN_512   24 drivers/char/agp/intel-agp.h #define I830_GMCH_GMS_STOLEN_512	0x20
I830_GMCH_GMS_STOLEN_512   64 include/drm/i915_drm.h #define I830_GMCH_GMS_STOLEN_512	0x20