_PCH_TRANS_VBLANK_A 2228 drivers/gpu/drm/i915/gvt/handlers.c 	MMIO_D(_MMIO(_PCH_TRANS_VBLANK_A), D_ALL);
_PCH_TRANS_VBLANK_A 8267 drivers/gpu/drm/i915/i915_reg.h #define PCH_TRANS_VBLANK(pipe)		_MMIO_PIPE(pipe, _PCH_TRANS_VBLANK_A, _PCH_TRANS_VBLANK_B)