INSTPS           2559 drivers/gpu/drm/i915/i915_reg.h #define INSTPS		_MMIO(0x2070) /* 965+ only */
INSTPS             52 drivers/video/fbdev/i810/i810_regs.h #define INSTPS                0x020C4 
INSTPS            107 drivers/video/fbdev/intelfb/intelfbhw.h #define INSTPS			0x20c4