PIPE_PIXEL_MASK 815 drivers/gpu/drm/i915/i915_irq.c pixel = low & PIPE_PIXEL_MASK; PIPE_PIXEL_MASK 1001 drivers/gpu/drm/i915/i915_irq.c position = (I915_READ_FW(PIPEFRAMEPIXEL(pipe)) & PIPE_PIXEL_MASK) >> PIPE_PIXEL_SHIFT;