SLOT_WIDTH_BITS
.slot_w = 1 << (SLOT_WIDTH_BITS - (xshift)), \
[TILFMT_PAGE] = GEOM(SLOT_WIDTH_BITS, SLOT_HEIGHT_BITS, 1),
#define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
#define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))