Symbol: MEM_SIZE_2M_GTB
drivers/video/fbdev/aty/atyfb_base.c
2507
case MEM_SIZE_2M_GTB:
drivers/video/fbdev/aty/atyfb_base.c
2558
par->mem_cntl |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;