ommu_arena_new(hose, 0xc0000000, 0x40000000,
				       SMP_CACHE_BYTES);
	hose->sg_pci->align_entry = 4; /* Titan caches 4 PTEs at a time */

	port->wsba[0].csr = hose->sg_isa->dma_base | 3;
	port->wsm[0].csr  = (hose->sg_isa->size - 1) & 0xfff00000;
	port->tba[0].csr  = virt_to_phys(hose->sg_isa->ptes);

	port->wsba[1].csr = __direct_map_base | 1;
	port->wsm[1].csr  = (__direct_map_size - 1) & 0xfff00000;
	port->tba[1].csr  = 0;

	port->wsba[2].csr = hose->sg_pci->dma_base | 3;
	port->wsm[2].csr  = (hose->sg_pci->size - 1) & 0xfff00000;
	port->tba[2].csr  = virt_to_phys(hose->sg_pci->ptes);

	port->wsba[3].csr = 0;

	/* Enable the Monster Window to make DAC pci64 possible.  */
	port->pctl.csr |= pctl_m_mwin;

	/*
	 * If it's an AGP port, initialize agplastwr.
	 */
	if (titan_query_agp(port)) 
		port->port_specific.a.agplastwr.csr = __direct_map_base;

	titan_pci_tbi(hose, 0, -1);
}

static void __init
titan_init_pachips(titan_pachip *pachip0, titan_pachip *pachip1)
{
	titan_pchip1_present = TITAN_cchip->csc.csr & 1L<<14;

	/* Init the ports in hose order... */
	titan_init_one_pachip_port(&pachip0->g_port, 0);	/* hose 0 */
	if (titan_pchip1_present)
		titan_init_one_pachip_port(&pachip1->g_port, 1);/* hose 1 */
	titan_init_one_pachip_port(&pachip0->a_port, 2);	/* hose 2 */
	if (titan_pchip1_present)
		titan_init_one_pachip_port(&pachip1->a_port, 3);/* hose 3 */
}

void __init
titan_init_arch(void)
{
#if 0
	printk("%s: titan_init_arch()\n", __func__);
	printk("%s: CChip registers:\n", __func__);
	printk("%s: CSR_CSC 0x%lx\n", __func__, TITAN_cchip->csc.csr);
	printk("%s: CSR_MTR 0x%lx\n", __func__, TITAN_cchip->mtr.csr);
	printk("%s: CSR_MISC 0x%lx\n", __func__, TITAN_cchip->misc.csr);
	printk("%s: CSR_DIM0 0x%lx\n", __func__, TITAN_cchip->dim0.csr);
	printk("%s: CSR_DIM1 0x%lx\n", __func__, TITAN_cchip->dim1.csr);
	printk("%s: CSR_DIR0 0x%lx\n", __func__, TITAN_cchip->dir0.csr);
	printk("%s: CSR_DIR1 0x%lx\n", __func__, TITAN_cchip->dir1.csr);
	printk("%s: CSR_DRIR 0x%lx\n", __func__, TITAN_cchip->drir.csr);

	printk("%s: DChip registers:\n", __func__);
	printk("%s: CSR_DSC 0x%lx\n", __func__, TITAN_dchip->dsc.csr);
	printk("%s: CSR_STR 0x%lx\n", __func__, TITAN_dchip->str.csr);
	printk("%s: CSR_DREV 0x%lx\n", __func__, TITAN_dchip->drev.csr);
#endif

	boot_cpuid = __hard_smp_processor_id();

	/* With multiple PCI busses, we play with I/O as physical addrs.  */
	ioport_resource.end = ~0UL;
	iomem_resource.end = ~0UL;

	/* PCI DMA Direct Mapping is 1GB at 2GB.  */
	__direct_map_base = 0x80000000;
	__direct_map_size = 0x40000000;

	/* Init the PA chip(s).  */
	titan_init_pachips(TITAN_pachip0, TITAN_pachip1);

	/* Check for graphic console location (if any).  */
	find_console_vga_hose();
}

static void
titan_kill_one_pachip_port(titan_pachip_port *port, int index)
{
	port->wsba[0].csr = saved_config[index].wsba[0];
	port->wsm[0].csr  = saved_config[index].wsm[0];
	port->tba[0].csr  = saved_config[index].tba[0];

	port->wsba[1].csr = saved_config[index].wsba[1];
	port->wsm[1].csr  = saved_config[index].wsm[1];
	port->tba[1].csr  = saved_config[index].tba[1];

	port->wsba[2].csr = saved_config[index].wsba[2];
	port->wsm[2].csr  = saved_config[index].wsm[2];
	port->tba[2].csr  = saved_config[index].tba[2];

	port->wsba[3].csr = saved_config[index].wsba[3];
	port->wsm[3].csr  = saved_config[index].wsm[3];
	port->tba[3].csr  = saved_config[index].tba[3];
}

static void
titan_kill_pachips(titan_pachip *pachip0, titan_pachip *pachip1)
{
	if (titan_pchip1_present) {
		titan_kill_one_pachip_port(&pachip1->g_port, 1);
		titan_kill_one_pachip_port(&pachip1->a_port, 3);
	}
	titan_kill_one_pachip_port(&pachip0->g_port, 0);
	titan_kill_one_pachip_port(&pachip0->a_port, 2);
}

void
titan_kill_arch(int mode)
{
	titan_kill_pachips(TITAN_pachip0, TITAN_pachip1);
}