CTRLFB_OFF
btext_update_display(p->frame_buffer_phys + CTRLFB_OFF,
if (par->pitch * par->vyres + CTRLFB_OFF > p->total_vram)
info->screen_base = p->frame_buffer + CTRLFB_OFF;
info->fix.smem_start = p->frame_buffer_phys + CTRLFB_OFF;
info->fix.smem_len = p->total_vram - CTRLFB_OFF;
vyres = (p->total_vram - CTRLFB_OFF) / (var.xres << cmode);