/**
 * mmtimer_init - device initialization routine
 *
 * Does initial setup for the mmtimer device.
 */
static int __init mmtimer_init(void)
{
	if (!ia64_platform_is("sn2"))
		return -1;

	/*
	 * Sanity check the cycles/sec variable
	 */
	if (sn_rtc_cycles_per_second < 100000) {
		printk(KERN_ERR "%s: unable to determine clock frequency\n",
		       MMTIMER_NAME);
		return -1;
	}

	mmtimer_femtoperiod = ((unsigned long)1E15 + sn_rtc_cycles_per_second /
			       2) / sn_rtc_cycles_per_second;

	strcpy(mmtimer_miscdev.devfs_name, MMTIMER_NAME);
	if (misc_register(&mmtimer_miscdev)) {
		printk(KERN_ERR "%s: failed to register device\n",
		       MMTIMER_NAME);
		return -1;
	}

	printk(KERN_INFO "%s: v%s, %ld MHz\n", MMTIMER_DESC, MMTIMER_VERSION,
	       sn_rtc_cycles_per_second/(unsigned long)1E6);

	return 0;
}

int __init prominfo_init(void)
{
    struct proc_dir_entry **entp;
    cnodeid_t cnodeid;
    unsigned long nasid;
    int size;
    char name[NODE_NAME_LEN];

    if (!ia64_platform_is("sn2"))
        return 0;

    size = num_online_nodes() * sizeof(struct proc_dir_entry *);
    proc_entries = kzalloc(size, GFP_KERNEL);
    if (!proc_entries)
        return -ENOMEM;

    sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL);

    entp = proc_entries;
    for_each_online_node(cnodeid) {
        sprintf(name, "node%d", cnodeid);
        *entp = proc_mkdir(name, sgi_prominfo_entry);
        nasid = cnodeid_to_nasid(cnodeid);
        create_proc_read_entry("fit", 0, *entp, read_fit_entry,
                               (void *)nasid);
        create_proc_read_entry("version", 0, *entp,
                               read_version_entry, (void *)nasid);
        entp++;
    }

    return 0;
}

/*
 * mspec_init
 *
 * Called at boot time to initialize the mspec facility.
 */
static int __init
mspec_init(void)
{
	int ret;
	int nid;

	/*
	 * The fetchop device only works on SN2 hardware, uncached and cached
	 * memory drivers should both be valid on all ia64 hardware
	 */
#ifdef CONFIG_SGI_SN
	if (ia64_platform_is("sn2")) {
		is_sn2 = 1;
		if (is_shub2()) {
			ret = -ENOMEM;
			for_each_node_state(nid, N_ONLINE) {
				int actual_nid;
				int nasid;
				unsigned long phys;

				scratch_page[nid] = uncached_alloc_page(nid, 1);
				if (scratch_page[nid] == 0)
					goto free_scratch_pages;
				phys = __pa(scratch_page[nid]);
				nasid = get_node_number(phys);
				actual_nid = nasid_to_cnodeid(nasid);
				if (actual_nid != nid)
					goto free_scratch_pages;
			}
		}

static void __init
check_versions (struct ia64_sal_systab *systab)
{
	sal_revision = (systab->sal_rev_major << 8) | systab->sal_rev_minor;
	sal_version = (systab->sal_b_rev_major << 8) | systab->sal_b_rev_minor;

	/* Check for broken firmware */
	if ((sal_revision == SAL_VERSION_CODE(49, 29))
	    && (sal_version == SAL_VERSION_CODE(49, 29)))
	{
		/*
		 * Old firmware for zx2000 prototypes have this weird version number,
		 * reset it to something sane.
		 */
		sal_revision = SAL_VERSION_CODE(2, 8);
		sal_version = SAL_VERSION_CODE(0, 0);
	}

	if (ia64_platform_is("sn2") && (sal_revision == SAL_VERSION_CODE(2, 9)))
		/*
		 * SGI Altix has hard-coded version 2.9 in their prom
		 * but they actually implement 3.2, so let's fix it here.
		 */
		sal_revision = SAL_VERSION_CODE(3, 2);
}

/* must be called with cpucontrol mutex held */
int __cpu_disable(void)
{
	int cpu = smp_processor_id();

	/*
	 * dont permit boot processor for now
	 */
	if (cpu == 0 && !bsp_remove_ok) {
		printk ("Your platform does not support removal of BSP\n");
		return (-EBUSY);
	}

	if (ia64_platform_is("sn2")) {
		if (!sn_cpu_disable_allowed(cpu))
			return -EBUSY;
	}

	set_cpu_online(cpu, false);

	if (migrate_platform_irqs(cpu)) {
		set_cpu_online(cpu, true);
		return -EBUSY;
	}

	remove_siblinginfo(cpu);
	fixup_irqs();
	local_flush_tlb_all();
	cpu_clear(cpu, cpu_callin_map);
	return 0;
}

static int __init simrs_init(void)
{
	struct serial_state *state;
	int retval;

	if (!ia64_platform_is("hpsim"))
		return -ENODEV;

	hp_simserial_driver = alloc_tty_driver(NR_PORTS);
	if (!hp_simserial_driver)
		return -ENOMEM;

	printk(KERN_INFO "SimSerial driver with no serial options enabled\n");

	/* Initialize the tty_driver structure */

	hp_simserial_driver->driver_name = "simserial";
	hp_simserial_driver->name = "ttyS";
	hp_simserial_driver->major = TTY_MAJOR;
	hp_simserial_driver->minor_start = 64;
	hp_simserial_driver->type = TTY_DRIVER_TYPE_SERIAL;
	hp_simserial_driver->subtype = SERIAL_TYPE_NORMAL;
	hp_simserial_driver->init_termios = tty_std_termios;
	hp_simserial_driver->init_termios.c_cflag =
		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
	hp_simserial_driver->flags = TTY_DRIVER_REAL_RAW;
	tty_set_operations(hp_simserial_driver, &hp_ops);

	state = rs_table;
	tty_port_init(&state->port);
	state->port.ops = &hp_port_ops;
	state->port.close_delay = 0; /* XXX really 0? */

	retval = hpsim_get_irq(KEYBOARD_INTR);
	if (retval < 0) {
		printk(KERN_ERR "%s: out of interrupt vectors!\n",
				__func__);
		goto err_free_tty;
	}

	state->irq = retval;

	/* the port is imaginary */
	printk(KERN_INFO "ttyS0 at 0x03f8 (irq = %d) is a 16550\n", state->irq);

	tty_port_link_device(&state->port, hp_simserial_driver, 0);
	retval = tty_register_driver(hp_simserial_driver);
	if (retval) {
		printk(KERN_ERR "Couldn't register simserial driver\n");
		goto err_free_tty;
	}

	return 0;
err_free_tty:
	put_tty_driver(hp_simserial_driver);
	tty_port_destroy(&state->port);
	return retval;
}

static int get_memory_proximity_domain(struct acpi_table_memory_affinity *ma)
{
	int pxm;

	pxm = ma->proximity_domain;
	if (ia64_platform_is("sn2"))
		pxm += ma->reserved1[0] << 8;
	return pxm;
}

bool is_affinity_mask_valid(const struct cpumask *cpumask)
{
	if (ia64_platform_is("sn2")) {
		/* Only allow one CPU to be specified in the smp_affinity mask */
		if (cpumask_weight(cpumask) != 1)
			return false;
	}
	return true;
}

static int get_processor_proximity_domain(struct acpi_table_processor_affinity *pa)
{
	int pxm;

	pxm = pa->proximity_domain;
	if (ia64_platform_is("sn2"))
		pxm += pa->reserved[0] << 8;
	return pxm;
}

/*
 * The serial driver boot-time initialization code!
 */
static int __init
simrs_init (void)
{
	int			i, rc;
	struct serial_state	*state;

	if (!ia64_platform_is("hpsim"))
		return -ENODEV;

	hp_simserial_driver = alloc_tty_driver(1);
	if (!hp_simserial_driver)
		return -ENOMEM;

	show_serial_version();

	/* Initialize the tty_driver structure */

	hp_simserial_driver->owner = THIS_MODULE;
	hp_simserial_driver->driver_name = "simserial";
	hp_simserial_driver->name = "ttyS";
	hp_simserial_driver->major = TTY_MAJOR;
	hp_simserial_driver->minor_start = 64;
	hp_simserial_driver->type = TTY_DRIVER_TYPE_SERIAL;
	hp_simserial_driver->subtype = SERIAL_TYPE_NORMAL;
	hp_simserial_driver->init_termios = tty_std_termios;
	hp_simserial_driver->init_termios.c_cflag =
		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
	hp_simserial_driver->flags = TTY_DRIVER_REAL_RAW;
	tty_set_operations(hp_simserial_driver, &hp_ops);

	/*
	 * Let's have a little bit of fun !
	 */
	for (i = 0, state = rs_table; i < NR_PORTS; i++,state++) {

		if (state->type == PORT_UNKNOWN) continue;

		if (!state->irq) {
			if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0)
				panic("%s: out of interrupt vectors!\n",
				      __FUNCTION__);
			state->irq = rc;
			ia64_ssc_connect_irq(KEYBOARD_INTR, state->irq);
		}

		printk(KERN_INFO "ttyS%d at 0x%04lx (irq = %d) is a %s\n",
		       state->line,
		       state->port, state->irq,
		       uart_config[state->type].name);
	}

	if (tty_register_driver(hp_simserial_driver))
		panic("Couldn't register simserial driver\n");

	return 0;
}

void __init
hpsim_setup (char **cmdline_p)
{
	ROOT_DEV = Root_SDA1;		/* default to first SCSI drive */

#ifdef CONFIG_HP_SIMSERIAL_CONSOLE
	{
		extern struct console hpsim_cons;
		if (ia64_platform_is("hpsim"))
			register_console(&hpsim_cons);
	}
#endif
}

static int __init
get_processor_proximity_domain(struct acpi_srat_cpu_affinity *pa)
{
	int pxm;

	pxm = pa->proximity_domain_lo;
	if (srat_rev >= 2) {
		pxm += pa->proximity_domain_hi[0] << 8;
		pxm += pa->proximity_domain_hi[1] << 16;
		pxm += pa->proximity_domain_hi[2] << 24;
	} else if (ia64_platform_is("sn2"))
		pxm += pa->proximity_domain_hi[0] << 8;
	return pxm;
}

static int __init tiocx_init(void)
{
	cnodeid_t cnodeid;
	int found_tiocx_device = 0;

	if (!ia64_platform_is("sn2"))
		return 0;

	bus_register(&tiocx_bus_type);

	for (cnodeid = 0; cnodeid < num_cnodes; cnodeid++) {
		nasid_t nasid;
		int bt;

		nasid = cnodeid_to_nasid(cnodeid);

		if ((nasid & 0x1) && is_fpga_tio(nasid, &bt)) {
			struct hubdev_info *hubdev;
			struct xwidget_info *widgetp;

			DBG("Found TIO at nasid 0x%x\n", nasid);

			hubdev =
			    (struct hubdev_info *)(NODEPDA(cnodeid)->pdinfo);

			widgetp = &hubdev->hdi_xwidget_info[TIOCX_CORELET];

			/* The CE hangs off of the CX port but is not an FPGA */
			if (widgetp->xwi_hwid.part_num == TIO_CE_ASIC_PARTNUM)
				continue;

			tio_corelet_reset(nasid, TIOCX_CORELET);
			tio_conveyor_enable(nasid);

			if (cx_device_register
			    (nasid, widgetp->xwi_hwid.part_num,
			     widgetp->xwi_hwid.mfg_num, hubdev, bt) < 0)
				return -ENXIO;
			else
				found_tiocx_device++;
		}
	}

	/* It's ok if we find zero devices. */
	DBG("found_tiocx_device= %d\n", found_tiocx_device);

	return 0;
}

int __init
xp_init(void)
{
	int ret, ch_number;
	u64 func_addr = *(u64 *) xp_nofault_PIOR;
	u64 err_func_addr = *(u64 *) xp_error_PIOR;


	if (!ia64_platform_is("sn2")) {
		return -ENODEV;
	}

	/*
	 * Register a nofault code region which performs a cross-partition
	 * PIO read. If the PIO read times out, the MCA handler will consume
	 * the error and return to a kernel-provided instruction to indicate
	 * an error. This PIO read exists because it is guaranteed to timeout
	 * if the destination is down (AMO operations do not timeout on at
	 * least some CPUs on Shubs <= v1.2, which unfortunately we have to
	 * work around).
	 */
	if ((ret = sn_register_nofault_code(func_addr, err_func_addr,
						err_func_addr, 1, 1)) != 0) {
		printk(KERN_ERR "XP: can't register nofault code, error=%d\n",
			ret);
	}
	/*
	 * Setup the nofault PIO read target. (There is no special reason why
	 * SH_IPI_ACCESS was selected.)
	 */
	if (is_shub2()) {
		xp_nofault_PIOR_target = SH2_IPI_ACCESS0;
	} else {
		xp_nofault_PIOR_target = SH1_IPI_ACCESS;
	}

	/* initialize the connection registration mutex */
	for (ch_number = 0; ch_number < XPC_NCHANNELS; ch_number++) {
		mutex_init(&xpc_registrations[ch_number].mutex);
	}

	return 0;
}

int __init
prominfo_init(void)
{
	struct proc_dir_entry **entp;
	struct proc_dir_entry *p;
	cnodeid_t cnodeid;
	nasid_t nasid;
	char name[NODE_NAME_LEN];

	if (!ia64_platform_is("sn2"))
		return 0;

	TRACE();

	DPRINTK("running on cpu %d\n", smp_processor_id());
	DPRINTK("numnodes %d\n", numnodes);

	proc_entries = kmalloc(numnodes * sizeof(struct proc_dir_entry *),
			       GFP_KERNEL);

	sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL);

	for (cnodeid = 0, entp = proc_entries;
	     cnodeid < numnodes;
	     cnodeid++, entp++) {
		sprintf(name, "node%d", cnodeid);
		*entp = proc_mkdir(name, sgi_prominfo_entry);
		nasid = cnodeid_to_nasid(cnodeid);
		p = create_proc_read_entry(
			"fit", 0, *entp, read_fit_entry,
			lookup_fit(nasid));
		if (p)
			p->owner = THIS_MODULE;
		p = create_proc_read_entry(
			"version", 0, *entp, read_version_entry,
			lookup_fit(nasid));
		if (p)
			p->owner = THIS_MODULE;
	}

	return 0;
}

/*
 * mspec_init
 *
 * Called at boot time to initialize the mspec facility.
 */
static int __init
mspec_init(void)
{
    int ret;
    int nid;

    /*
     * The fetchop device only works on SN2 hardware, uncached and cached
     * memory drivers should both be valid on all ia64 hardware
     */
#ifdef CONFIG_SGI_SN
    if (ia64_platform_is("sn2")) {
        is_sn2 = 1;
        if (is_shub2()) {
            ret = -ENOMEM;
            for_each_online_node(nid) {
                int actual_nid;
                int nasid;
                unsigned long phys;

                scratch_page[nid] = uncached_alloc_page(nid);
                if (scratch_page[nid] == 0)
                    goto free_scratch_pages;
                phys = __pa(scratch_page[nid]);
                nasid = get_node_number(phys);
                actual_nid = nasid_to_cnodeid(nasid);
                if (actual_nid != nid)
                    goto free_scratch_pages;
            }
        }

        ret = misc_register(&fetchop_miscdev);
        if (ret) {
            printk(KERN_ERR
                   "%s: failed to register device %i\n",
                   FETCHOP_ID, ret);
            goto free_scratch_pages;
        }
    }

/*
 * Add a new chunk of uncached memory pages to the specified pool.
 *
 * @pool: pool to add new chunk of uncached memory to
 * @nid: node id of node to allocate memory from, or -1
 *
 * This is accomplished by first allocating a granule of cached memory pages
 * and then converting them to uncached memory pages.
 */
static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid)
{
	struct page *page;
	int status, i, nchunks_added = uc_pool->nchunks_added;
	unsigned long c_addr, uc_addr;

	if (mutex_lock_interruptible(&uc_pool->add_chunk_mutex) != 0)
		return -1;	/* interrupted by a signal */

	if (uc_pool->nchunks_added > nchunks_added) {
		/* someone added a new chunk while we were waiting */
		mutex_unlock(&uc_pool->add_chunk_mutex);
		return 0;
	}

	if (uc_pool->nchunks_added >= MAX_CONVERTED_CHUNKS_PER_NODE) {
		mutex_unlock(&uc_pool->add_chunk_mutex);
		return -1;
	}

	/* attempt to allocate a granule's worth of cached memory pages */

	page = alloc_pages_exact_node(nid,
				GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
				IA64_GRANULE_SHIFT-PAGE_SHIFT);
	if (!page) {
		mutex_unlock(&uc_pool->add_chunk_mutex);
		return -1;
	}

	/* convert the memory pages from cached to uncached */

	c_addr = (unsigned long)page_address(page);
	uc_addr = c_addr - PAGE_OFFSET + __IA64_UNCACHED_OFFSET;

	/*
	 * There's a small race here where it's possible for someone to
	 * access the page through /dev/mem halfway through the conversion
	 * to uncached - not sure it's really worth bothering about
	 */
	for (i = 0; i < (IA64_GRANULE_SIZE / PAGE_SIZE); i++)
		SetPageUncached(&page[i]);

	flush_tlb_kernel_range(uc_addr, uc_addr + IA64_GRANULE_SIZE);

	status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
	if (status == PAL_VISIBILITY_OK_REMOTE_NEEDED) {
		atomic_set(&uc_pool->status, 0);
		status = smp_call_function(uncached_ipi_visibility, uc_pool, 1);
		if (status || atomic_read(&uc_pool->status))
			goto failed;
	} else if (status != PAL_VISIBILITY_OK)
		goto failed;

	preempt_disable();

	if (ia64_platform_is("sn2"))
		sn_flush_all_caches(uc_addr, IA64_GRANULE_SIZE);
	else
		flush_icache_range(uc_addr, uc_addr + IA64_GRANULE_SIZE);

	/* flush the just introduced uncached translation from the TLB */
	local_flush_tlb_all();

	preempt_enable();

	status = ia64_pal_mc_drain();
	if (status != PAL_STATUS_SUCCESS)
		goto failed;
	atomic_set(&uc_pool->status, 0);
	status = smp_call_function(uncached_ipi_mc_drain, uc_pool, 1);
	if (status || atomic_read(&uc_pool->status))
		goto failed;

	/*
	 * The chunk of memory pages has been converted to uncached so now we
	 * can add it to the pool.
	 */
	status = gen_pool_add(uc_pool->pool, uc_addr, IA64_GRANULE_SIZE, nid);
	if (status)
		goto failed;

	uc_pool->nchunks_added++;
	mutex_unlock(&uc_pool->add_chunk_mutex);
	return 0;

	/* failed to convert or add the chunk so give it back to the kernel */
failed:
	for (i = 0; i < (IA64_GRANULE_SIZE / PAGE_SIZE); i++)
		ClearPageUncached(&page[i]);

//.........这里部分代码省略.........

int __init acpi_boot_init(void)
{


	if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
		printk(KERN_ERR PREFIX "Can't find MADT\n");
		goto skip_madt;
	}

	

	if (acpi_table_parse_madt
	    (ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE, acpi_parse_lapic_addr_ovr, 0) < 0)
		printk(KERN_ERR PREFIX
		       "Error parsing LAPIC address override entry\n");

	if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
	    < 0)
		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");

	

	if (acpi_table_parse_madt
	    (ACPI_MADT_TYPE_IO_SAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1) {
		if (!ia64_platform_is("sn2"))
			printk(KERN_ERR PREFIX
			       "Error parsing MADT - no IOSAPIC entries\n");
	}

	

	if (acpi_table_parse_madt
	    (ACPI_MADT_TYPE_INTERRUPT_SOURCE, acpi_parse_plat_int_src,
	     ACPI_MAX_PLATFORM_INTERRUPTS) < 0)
		printk(KERN_ERR PREFIX
		       "Error parsing platform interrupt source entry\n");

	if (acpi_table_parse_madt
	    (ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, acpi_parse_int_src_ovr, 0) < 0)
		printk(KERN_ERR PREFIX
		       "Error parsing interrupt source overrides entry\n");

	if (acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, acpi_parse_nmi_src, 0) < 0)
		printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
      skip_madt:

	if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
		printk(KERN_ERR PREFIX "Can't find FADT\n");

#ifdef CONFIG_ACPI_NUMA
#ifdef CONFIG_SMP
	if (srat_num_cpus == 0) {
		int cpu, i = 1;
		for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++)
			if (smp_boot_data.cpu_phys_id[cpu] !=
			    hard_smp_processor_id())
				node_cpuid[i++].phys_id =
				    smp_boot_data.cpu_phys_id[cpu];
	}
#endif
	build_cpu_to_node_map();
#endif
	return 0;
}

static int __init sn_salinfo_init(void)
{
	if (ia64_platform_is("sn2"))
		salinfo_platform_oemdata = &sn_salinfo_platform_oemdata;
	return 0;
}

/*
 * scdrv_init
 *
 * Called at boot time to initialize the system controller communication
 * facility.
 */
int __init
scdrv_init(void)
{
	geoid_t geoid;
	cnodeid_t cnode;
	char devname[32];
	char *devnamep;
	struct sysctl_data_s *scd;
	void *salbuf;
	dev_t first_dev, dev;
	nasid_t event_nasid;

	if (!ia64_platform_is("sn2"))
		return -ENODEV;

	event_nasid = ia64_sn_get_console_nasid();

	if (alloc_chrdev_region(&first_dev, 0, num_cnodes,
				SYSCTL_BASENAME) < 0) {
		printk("%s: failed to register SN system controller device\n",
		       __func__);
		return -ENODEV;
	}
	snsc_class = class_create(THIS_MODULE, SYSCTL_BASENAME);

	for (cnode = 0; cnode < num_cnodes; cnode++) {
			geoid = cnodeid_get_geoid(cnode);
			devnamep = devname;
			format_module_id(devnamep, geo_module(geoid),
					 MODULE_FORMAT_BRIEF);
			devnamep = devname + strlen(devname);
			sprintf(devnamep, "^%d#%d", geo_slot(geoid),
				geo_slab(geoid));

			/* allocate sysctl device data */
			scd = kzalloc(sizeof (struct sysctl_data_s),
				      GFP_KERNEL);
			if (!scd) {
				printk("%s: failed to allocate device info"
				       "for %s/%s\n", __func__,
				       SYSCTL_BASENAME, devname);
				continue;
			}

			/* initialize sysctl device data fields */
			scd->scd_nasid = cnodeid_to_nasid(cnode);
			if (!(salbuf = kmalloc(SCDRV_BUFSZ, GFP_KERNEL))) {
				printk("%s: failed to allocate driver buffer"
				       "(%s%s)\n", __func__,
				       SYSCTL_BASENAME, devname);
				kfree(scd);
				continue;
			}

			if (ia64_sn_irtr_init(scd->scd_nasid, salbuf,
					      SCDRV_BUFSZ) < 0) {
				printk
				    ("%s: failed to initialize SAL for"
				     " system controller communication"
				     " (%s/%s): outdated PROM?\n",
				     __func__, SYSCTL_BASENAME, devname);
				kfree(scd);
				kfree(salbuf);
				continue;
			}

			dev = first_dev + cnode;
			cdev_init(&scd->scd_cdev, &scdrv_fops);
			if (cdev_add(&scd->scd_cdev, dev, 1)) {
				printk("%s: failed to register system"
				       " controller device (%s%s)\n",
				       __func__, SYSCTL_BASENAME, devname);
				kfree(scd);
				kfree(salbuf);
				continue;
			}

			device_create(snsc_class, NULL, dev, NULL,
				      "%s", devname);

			ia64_sn_irtr_intr_enable(scd->scd_nasid,
						 0 /*ignored */ ,
						 SAL_IROUTER_INTR_RECV);

                        /* on the console nasid, prepare to receive
                         * system controller environmental events
                         */
                        if(scd->scd_nasid == event_nasid) {
                                scdrv_event_init(scd);
                        }
	}
	return 0;
}