PIPE_DPST_EVENT_ENABLE  430 drivers/gpu/drm/gma500/psb_irq.c 		psb_enable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);
PIPE_DPST_EVENT_ENABLE  470 drivers/gpu/drm/gma500/psb_irq.c 		psb_disable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);