WIN_A_ACT_REQ
value = (WIN_A_ACT_REQ << p->index) << 8 | GENERAL_UPDATE;
value = (WIN_A_ACT_REQ << p->index) | GENERAL_ACT_REQ;
mask = COMMON_ACTREQ | WIN_A_ACT_REQ << plane->base.index;
tegra->planes |= WIN_A_ACT_REQ << plane->index;