Ejemplo n.º 1
0
/* Callback for SLIT parsing */
void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
{
	int i, j;

	for (i = 0; i < slit->locality_count; i++)
		for (j = 0; j < slit->locality_count; j++)
			numa_set_distance(pxm_to_node(i), pxm_to_node(j),
				slit->entry[slit->locality_count * i + j]);
}
Ejemplo n.º 2
0
struct pci_bus * __devinit
pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
{
	struct pci_root_info info;
	struct pci_controller *controller;
	unsigned int windows = 0;
	struct pci_bus *pbus;
	char *name;
	int pxm;

	controller = alloc_pci_controller(domain);
	if (!controller)
		goto out1;

	controller->acpi_handle = device->handle;

	pxm = acpi_get_pxm(controller->acpi_handle);
#ifdef CONFIG_NUMA
	if (pxm >= 0)
		controller->node = pxm_to_node(pxm);
#endif

	acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
			&windows);
	if (windows) {
		controller->window =
			kmalloc_node(sizeof(*controller->window) * windows,
				     GFP_KERNEL, controller->node);
		if (!controller->window)
			goto out2;
	}

	name = kmalloc(16, GFP_KERNEL);
	if (!name)
		goto out3;

	sprintf(name, "PCI Bus %04x:%02x", domain, bus);
	info.controller = controller;
	info.name = name;
	acpi_walk_resources(device->handle, METHOD_NAME__CRS, add_window,
			&info);
	/*
	 * See arch/x86/pci/acpi.c.
	 * The desired pci bus might already be scanned in a quirk. We
	 * should handle the case here, but it appears that IA64 hasn't
	 * such quirk. So we just ignore the case now.
	 */
	pbus = pci_scan_bus_parented(NULL, bus, &pci_root_ops, controller);
	if (pbus)
		pcibios_setup_root_windows(pbus, controller);

	return pbus;

out3:
	kfree(controller->window);
out2:
	kfree(controller);
out1:
	return NULL;
}
Ejemplo n.º 3
0
unsigned int __init dom0_max_vcpus(void)
{
    unsigned int i, max_vcpus, limit;
    nodeid_t node;

    for ( i = 0; i < dom0_nr_pxms; ++i )
        if ( (node = pxm_to_node(dom0_pxms[i])) != NUMA_NO_NODE )
            node_set(node, dom0_nodes);
    nodes_and(dom0_nodes, dom0_nodes, node_online_map);
    if ( nodes_empty(dom0_nodes) )
        dom0_nodes = node_online_map;
    for_each_node_mask ( node, dom0_nodes )
        cpumask_or(&dom0_cpus, &dom0_cpus, &node_to_cpumask(node));
    cpumask_and(&dom0_cpus, &dom0_cpus, cpupool0->cpu_valid);
    if ( cpumask_empty(&dom0_cpus) )
        cpumask_copy(&dom0_cpus, cpupool0->cpu_valid);

    max_vcpus = cpumask_weight(&dom0_cpus);
    if ( opt_dom0_max_vcpus_min > max_vcpus )
        max_vcpus = opt_dom0_max_vcpus_min;
    if ( opt_dom0_max_vcpus_max < max_vcpus )
        max_vcpus = opt_dom0_max_vcpus_max;
    limit = dom0_pvh ? HVM_MAX_VCPUS : MAX_VIRT_CPUS;
    if ( max_vcpus > limit )
        max_vcpus = limit;

    return max_vcpus;
}
Ejemplo n.º 4
0
static int __init acpi_parse_gicc_pxm(struct acpi_subtable_header *header,
				      const unsigned long end)
{
	struct acpi_srat_gicc_affinity *pa;
	int cpu, pxm, node;

	if (srat_disabled())
		return -EINVAL;

	pa = (struct acpi_srat_gicc_affinity *)header;
	if (!pa)
		return -EINVAL;

	if (!(pa->flags & ACPI_SRAT_GICC_ENABLED))
		return 0;

	pxm = pa->proximity_domain;
	node = pxm_to_node(pxm);

	/*
	 * If we can't map the UID to a logical cpu this
	 * means that the UID is not part of possible cpus
	 * so we do not need a NUMA mapping for it, skip
	 * the SRAT entry and keep parsing.
	 */
	cpu = get_cpu_for_acpi_id(pa->acpi_processor_uid);
	if (cpu < 0)
		return 0;

	acpi_early_node_map[cpu] = node;
	pr_info("SRAT: PXM %d -> MPIDR 0x%llx -> Node %d\n", pxm,
		cpu_logical_map(cpu), node);

	return 0;
}
Ejemplo n.º 5
0
/*
 * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
 * I/O localities since SRAT does not list them.  I/O localities are
 * not supported at this point.
 */
void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
{
	int i, j;

	for (i = 0; i < slit->locality_count; i++) {
		const int from_node = pxm_to_node(i);

		if (from_node == NUMA_NO_NODE)
			continue;

		for (j = 0; j < slit->locality_count; j++) {
			const int to_node = pxm_to_node(j);

			if (to_node == NUMA_NO_NODE)
				continue;

			numa_set_distance(from_node, to_node,
				slit->entry[slit->locality_count * i + j]);
		}
	}
}
Ejemplo n.º 6
0
static acpi_status __devinit
acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
{
	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
	union acpi_object *obj;
	struct acpi_madt_io_sapic *iosapic;
	unsigned int gsi_base;
	int pxm, node;

	/* Only care about objects w/ a method that returns the MADT */
	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
		return AE_OK;

	if (!buffer.length || !buffer.pointer)
		return AE_OK;

	obj = buffer.pointer;
	if (obj->type != ACPI_TYPE_BUFFER ||
	    obj->buffer.length < sizeof(*iosapic)) {
		kfree(buffer.pointer);
		return AE_OK;
	}

	iosapic = (struct acpi_madt_io_sapic *)obj->buffer.pointer;

	if (iosapic->header.type != ACPI_MADT_TYPE_IO_SAPIC) {
		kfree(buffer.pointer);
		return AE_OK;
	}

	gsi_base = iosapic->global_irq_base;

	kfree(buffer.pointer);

	/*
	 * OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell
	 * us which node to associate this with.
	 */
	pxm = acpi_get_pxm(handle);
	if (pxm < 0)
		return AE_OK;

	node = pxm_to_node(pxm);

	if (node >= MAX_NUMNODES || !node_online(node) ||
	    cpus_empty(node_to_cpumask(node)))
		return AE_OK;

	/* We know a gsi to node mapping! */
	map_iosapic_to_node(gsi_base, node);
	return AE_OK;
}
Ejemplo n.º 7
0
Archivo: pci.c Proyecto: ivucica/linux
struct pci_bus * __devinit
pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
{
	struct pci_root_info info;
	struct pci_controller *controller;
	unsigned int windows = 0;
	struct pci_bus *pbus;
	char *name;
	int pxm;

	controller = alloc_pci_controller(domain);
	if (!controller)
		goto out1;

	controller->acpi_handle = device->handle;

	pxm = acpi_get_pxm(controller->acpi_handle);
#ifdef CONFIG_NUMA
	if (pxm >= 0)
		controller->node = pxm_to_node(pxm);
#endif

	acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
			&windows);
	controller->window = kmalloc_node(sizeof(*controller->window) * windows,
			GFP_KERNEL, controller->node);
	if (!controller->window)
		goto out2;

	name = kmalloc(16, GFP_KERNEL);
	if (!name)
		goto out3;

	sprintf(name, "PCI Bus %04x:%02x", domain, bus);
	info.controller = controller;
	info.name = name;
	acpi_walk_resources(device->handle, METHOD_NAME__CRS, add_window,
			&info);

	pbus = pci_scan_bus_parented(NULL, bus, &pci_root_ops, controller);
	if (pbus)
		pcibios_setup_root_windows(pbus, controller);

	return pbus;

out3:
	kfree(controller->window);
out2:
	kfree(controller);
out1:
	return NULL;
}
Ejemplo n.º 8
0
static int __init pxm_to_nasid(int pxm)
{
	int i;
	int nid;

	nid = pxm_to_node(pxm);
	for (i = 0; i < num_node_memblks; i++) {
		if (node_memblk[i].nid == nid) {
			return NASID_GET(node_memblk[i].start_paddr);
		}
	}
	return -1;
}
Ejemplo n.º 9
0
static acpi_status __devinit
acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
{
	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
	union acpi_object *obj;
	struct acpi_madt_io_sapic *iosapic;
	unsigned int gsi_base;
	int pxm, node;

	
	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
		return AE_OK;

	if (!buffer.length || !buffer.pointer)
		return AE_OK;

	obj = buffer.pointer;
	if (obj->type != ACPI_TYPE_BUFFER ||
	    obj->buffer.length < sizeof(*iosapic)) {
		kfree(buffer.pointer);
		return AE_OK;
	}

	iosapic = (struct acpi_madt_io_sapic *)obj->buffer.pointer;

	if (iosapic->header.type != ACPI_MADT_TYPE_IO_SAPIC) {
		kfree(buffer.pointer);
		return AE_OK;
	}

	gsi_base = iosapic->global_irq_base;

	kfree(buffer.pointer);

	pxm = acpi_get_pxm(handle);
	if (pxm < 0)
		return AE_OK;

	node = pxm_to_node(pxm);

	if (node >= MAX_NUMNODES || !node_online(node) ||
	    cpumask_empty(cpumask_of_node(node)))
		return AE_OK;

	
	map_iosapic_to_node(gsi_base, node);
	return AE_OK;
}
Ejemplo n.º 10
0
static
int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
{
#ifdef CONFIG_ACPI_NUMA
	int pxm_id;

	pxm_id = acpi_get_pxm(handle);

	/*
	 * Assuming that the container driver would have set the proximity
	 * domain and would have initialized pxm_to_node(pxm_id) && pxm_flag
	 */
	node_cpuid[cpu].nid = (pxm_id < 0) ? 0 : pxm_to_node(pxm_id);

	node_cpuid[cpu].phys_id = physid;
#endif
	return (0);
}
Ejemplo n.º 11
0
int __init get_memcfg_from_srat(void)
{
	int i, j, nid;

	if (srat_disabled())
		goto out_fail;

	if (acpi_numa_init() < 0)
		goto out_fail;

	if (num_memory_chunks == 0) {
		printk(KERN_DEBUG
			 "could not find any ACPI SRAT memory areas.\n");
		goto out_fail;
	}

	/* Calculate total number of nodes in system from PXM bitmap and create
	 * a set of sequential node IDs starting at zero.  (ACPI doesn't seem
	 * to specify the range of _PXM values.)
	 */
	/*
	 * MCD - we no longer HAVE to number nodes sequentially.  PXM domain
	 * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically
	 * 32, so we will continue numbering them in this manner until MAX_NUMNODES
	 * approaches MAX_PXM_DOMAINS for i386.
	 */
	nodes_clear(node_online_map);
	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
		if (BMAP_TEST(pxm_bitmap, i)) {
			int nid = acpi_map_pxm_to_node(i);
			node_set_online(nid);
		}
	}
	BUG_ON(num_online_nodes() == 0);

	/* set cnode id in memory chunk structure */
	for (i = 0; i < num_memory_chunks; i++)
		node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm);

	printk(KERN_DEBUG "pxm bitmap: ");
	for (i = 0; i < sizeof(pxm_bitmap); i++) {
		printk(KERN_CONT "%02x ", pxm_bitmap[i]);
	}
	printk(KERN_CONT "\n");
	printk(KERN_DEBUG "Number of logical nodes in system = %d\n",
			 num_online_nodes());
	printk(KERN_DEBUG "Number of memory chunks in system = %d\n",
			 num_memory_chunks);

	for (i = 0; i < MAX_LOCAL_APIC; i++)
		set_apicid_to_node(i, pxm_to_node(apicid_to_pxm[i]));

	for (j = 0; j < num_memory_chunks; j++){
		struct node_memory_chunk_s * chunk = &node_memory_chunk[j];
		printk(KERN_DEBUG
			"chunk %d nid %d start_pfn %08lx end_pfn %08lx\n",
		       j, chunk->nid, chunk->start_pfn, chunk->end_pfn);
		if (node_read_chunk(chunk->nid, chunk))
			continue;

		memblock_x86_register_active_regions(chunk->nid, chunk->start_pfn,
					     min(chunk->end_pfn, max_pfn));
	}
	/* for out of order entries in SRAT */
	sort_node_map();

	for_each_online_node(nid) {
		unsigned long start = node_start_pfn[nid];
		unsigned long end = min(node_end_pfn[nid], max_pfn);

		memory_present(nid, start, end);
		node_remap_size[nid] = node_memmap_size_bytes(nid, start, end);
	}
	return 1;
out_fail:
	printk(KERN_DEBUG "failed to get NUMA memory information from SRAT"
			" table\n");
	return 0;
}
Ejemplo n.º 12
0
struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
{
	struct acpi_device *device = root->device;
	struct pci_root_info *info = NULL;
	int domain = root->segment;
	int busnum = root->secondary.start;
	LIST_HEAD(resources);
	struct pci_bus *bus = NULL;
	struct pci_sysdata *sd;
	int node;
#ifdef CONFIG_ACPI_NUMA
	int pxm;
#endif

	if (pci_ignore_seg)
		domain = 0;

	if (domain && !pci_domains_supported) {
		printk(KERN_WARNING "pci_bus %04x:%02x: "
		       "ignored (multiple domains not supported)\n",
		       domain, busnum);
		return NULL;
	}

	node = -1;
#ifdef CONFIG_ACPI_NUMA
	pxm = acpi_get_pxm(device->handle);
	if (pxm >= 0)
		node = pxm_to_node(pxm);
	if (node != -1)
		set_mp_bus_to_node(busnum, node);
	else
#endif
		node = get_mp_bus_to_node(busnum);

	if (node != -1 && !node_online(node))
		node = -1;

	info = kzalloc(sizeof(*info), GFP_KERNEL);
	if (!info) {
		printk(KERN_WARNING "pci_bus %04x:%02x: "
		       "ignored (out of memory)\n", domain, busnum);
		return NULL;
	}

	sd = &info->sd;
	sd->domain = domain;
	sd->node = node;
	sd->companion = device;
	/*
	 * Maybe the desired pci bus has been already scanned. In such case
	 * it is unnecessary to scan the pci bus with the given domain,busnum.
	 */
	bus = pci_find_bus(domain, busnum);
	if (bus) {
		/*
		 * If the desired bus exits, the content of bus->sysdata will
		 * be replaced by sd.
		 */
		memcpy(bus->sysdata, sd, sizeof(*sd));
		kfree(info);
	} else {
		probe_pci_root_info(info, device, busnum, domain);

		/* insert busn res at first */
		pci_add_resource(&resources,  &root->secondary);
		/*
		 * _CRS with no apertures is normal, so only fall back to
		 * defaults or native bridge info if we're ignoring _CRS.
		 */
		if (pci_use_crs)
			add_resources(info, &resources);
		else {
			free_pci_root_info_res(info);
			x86_pci_root_bus_resources(busnum, &resources);
		}

		if (!setup_mcfg_map(info, domain, (u8)root->secondary.start,
				    (u8)root->secondary.end, root->mcfg_addr))
			bus = pci_create_root_bus(NULL, busnum, &pci_root_ops,
						  sd, &resources);

		if (bus) {
			pci_scan_child_bus(bus);
			pci_set_host_bridge_release(
				to_pci_host_bridge(bus->bridge),
				release_pci_root_info, info);
		} else {
			pci_free_resource_list(&resources);
			__release_pci_root_info(info);
		}
	}

	/* After the PCI-E bus has been walked and all devices discovered,
	 * configure any settings of the fabric that might be necessary.
	 */
	if (bus) {
		struct pci_bus *child;
		list_for_each_entry(child, &bus->children, node)
			pcie_bus_configure_settings(child);
	}

	if (bus && node != -1) {
#ifdef CONFIG_ACPI_NUMA
		if (pxm >= 0)
			dev_printk(KERN_DEBUG, &bus->dev,
				   "on NUMA node %d (pxm %d)\n", node, pxm);
#else
		dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
#endif
	}

	return bus;
}
Ejemplo n.º 13
0
void __init acpi_numa_arch_fixup(void)
{
	int i, j, node_from, node_to;

	/* If there's no SRAT, fix the phys_id and mark node 0 online */
	if (srat_num_cpus == 0) {
		node_set_online(0);
		node_cpuid[0].phys_id = hard_smp_processor_id();
		return;
	}

	/*
	 * MCD - This can probably be dropped now.  No need for pxm ID to node ID
	 * mapping with sparse node numbering iff MAX_PXM_DOMAINS <= MAX_NUMNODES.
	 */
	nodes_clear(node_online_map);
	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
		if (pxm_bit_test(i)) {
			int nid = acpi_map_pxm_to_node(i);
			node_set_online(nid);
		}
	}

	/* set logical node id in memory chunk structure */
	for (i = 0; i < num_node_memblks; i++)
		node_memblk[i].nid = pxm_to_node(node_memblk[i].nid);

	/* assign memory bank numbers for each chunk on each node */
	for_each_online_node(i) {
		int bank;

		bank = 0;
		for (j = 0; j < num_node_memblks; j++)
			if (node_memblk[j].nid == i)
				node_memblk[j].bank = bank++;
	}

	/* set logical node id in cpu structure */
	for_each_possible_early_cpu(i)
		node_cpuid[i].nid = pxm_to_node(node_cpuid[i].nid);

	printk(KERN_INFO "Number of logical nodes in system = %d\n",
	       num_online_nodes());
	printk(KERN_INFO "Number of memory chunks in system = %d\n",
	       num_node_memblks);

	if (!slit_table)
		return;
	memset(numa_slit, -1, sizeof(numa_slit));
	for (i = 0; i < slit_table->locality_count; i++) {
		if (!pxm_bit_test(i))
			continue;
		node_from = pxm_to_node(i);
		for (j = 0; j < slit_table->locality_count; j++) {
			if (!pxm_bit_test(j))
				continue;
			node_to = pxm_to_node(j);
			node_distance(node_from, node_to) =
			    slit_table->entry[i * slit_table->locality_count + j];
		}
	}

#ifdef SLIT_DEBUG
	printk("ACPI 2.0 SLIT locality table:\n");
	for_each_online_node(i) {
		for_each_online_node(j)
		    printk("%03d ", node_distance(i, j));
		printk("\n");
	}
#endif
}
Ejemplo n.º 14
0
struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
{
	struct acpi_device *device = root->device;
	int domain = root->segment;
	int busnum = root->secondary.start;
	struct pci_bus *bus;
	struct pci_sysdata *sd;
	int node;
#ifdef CONFIG_ACPI_NUMA
	int pxm;
#endif

	if (domain && !pci_domains_supported) {
		printk(KERN_WARNING "pci_bus %04x:%02x: "
		       "ignored (multiple domains not supported)\n",
		       domain, busnum);
		return NULL;
	}

	node = -1;
#ifdef CONFIG_ACPI_NUMA
	pxm = acpi_get_pxm(device->handle);
	if (pxm >= 0)
		node = pxm_to_node(pxm);
	if (node != -1)
		set_mp_bus_to_node(busnum, node);
	else
#endif
		node = get_mp_bus_to_node(busnum);

	if (node != -1 && !node_online(node))
		node = -1;

	/* Allocate per-root-bus (not per bus) arch-specific data.
	 * TODO: leak; this memory is never freed.
	 * It's arguable whether it's worth the trouble to care.
	 */
	sd = kzalloc(sizeof(*sd), GFP_KERNEL);
	if (!sd) {
		printk(KERN_WARNING "pci_bus %04x:%02x: "
		       "ignored (out of memory)\n", domain, busnum);
		return NULL;
	}

	sd->domain = domain;
	sd->node = node;
	/*
	 * Maybe the desired pci bus has been already scanned. In such case
	 * it is unnecessary to scan the pci bus with the given domain,busnum.
	 */
	bus = pci_find_bus(domain, busnum);
	if (bus) {
		/*
		 * If the desired bus exits, the content of bus->sysdata will
		 * be replaced by sd.
		 */
		memcpy(bus->sysdata, sd, sizeof(*sd));
		kfree(sd);
	} else {
		bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd);
		if (bus) {
			get_current_resources(device, busnum, domain, bus);
			bus->subordinate = pci_scan_child_bus(bus);
		}
	}

	if (!bus)
		kfree(sd);

	if (bus && node != -1) {
#ifdef CONFIG_ACPI_NUMA
		if (pxm >= 0)
			dev_printk(KERN_DEBUG, &bus->dev,
				   "on NUMA node %d (pxm %d)\n", node, pxm);
#else
		dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
#endif
	}

	return bus;
}
Ejemplo n.º 15
0
/* Parse the ACPI Static Resource Affinity Table */
static int __init acpi20_parse_srat(struct acpi_table_srat *sratp)
{
	u8 *start, *end, *p;
	int i, j, nid;

	start = (u8 *)(&(sratp->reserved) + 1);	/* skip header */
	p = start;
	end = (u8 *)sratp + sratp->header.length;

	memset(pxm_bitmap, 0, sizeof(pxm_bitmap));	/* init proximity domain bitmap */
	memset(node_memory_chunk, 0, sizeof(node_memory_chunk));

	num_memory_chunks = 0;
	while (p < end) {
		switch (*p) {
		case ACPI_SRAT_TYPE_CPU_AFFINITY:
			parse_cpu_affinity_structure(p);
			break;
		case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
			parse_memory_affinity_structure(p);
			break;
		default:
			printk("ACPI 2.0 SRAT: unknown entry skipped: type=0x%02X, len=%d\n", p[0], p[1]);
			break;
		}
		p += p[1];
		if (p[1] == 0) {
			printk("acpi20_parse_srat: Entry length value is zero;"
				" can't parse any further!\n");
			break;
		}
	}

	if (num_memory_chunks == 0) {
		printk("could not finy any ACPI SRAT memory areas.\n");
		goto out_fail;
	}

	/* Calculate total number of nodes in system from PXM bitmap and create
	 * a set of sequential node IDs starting at zero.  (ACPI doesn't seem
	 * to specify the range of _PXM values.)
	 */
	/*
	 * MCD - we no longer HAVE to number nodes sequentially.  PXM domain
	 * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically
	 * 32, so we will continue numbering them in this manner until MAX_NUMNODES
	 * approaches MAX_PXM_DOMAINS for i386.
	 */
	nodes_clear(node_online_map);
	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
		if (BMAP_TEST(pxm_bitmap, i)) {
			int nid = acpi_map_pxm_to_node(i);
			node_set_online(nid);
		}
	}
	BUG_ON(num_online_nodes() == 0);

	/* set cnode id in memory chunk structure */
	for (i = 0; i < num_memory_chunks; i++)
		node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm);

	printk("pxm bitmap: ");
	for (i = 0; i < sizeof(pxm_bitmap); i++) {
		printk("%02X ", pxm_bitmap[i]);
	}
	printk("\n");
	printk("Number of logical nodes in system = %d\n", num_online_nodes());
	printk("Number of memory chunks in system = %d\n", num_memory_chunks);

	for (i = 0; i < MAX_APICID; i++)
		apicid_2_node[i] = pxm_to_node(apicid_to_pxm[i]);

	for (j = 0; j < num_memory_chunks; j++){
		struct node_memory_chunk_s * chunk = &node_memory_chunk[j];
		printk("chunk %d nid %d start_pfn %08lx end_pfn %08lx\n",
		       j, chunk->nid, chunk->start_pfn, chunk->end_pfn);
		node_read_chunk(chunk->nid, chunk);
		add_active_range(chunk->nid, chunk->start_pfn, chunk->end_pfn);
	}
 
	for_each_online_node(nid) {
		unsigned long start = node_start_pfn[nid];
		unsigned long end = node_end_pfn[nid];

		memory_present(nid, start, end);
		node_remap_size[nid] = node_memmap_size_bytes(nid, start, end);
	}
	return 1;
out_fail:
	return 0;
}
Ejemplo n.º 16
0
void __init acpi_numa_arch_fixup(void)
{
	int i, j, node_from, node_to;

	
	if (srat_num_cpus == 0) {
		node_set_online(0);
		node_cpuid[0].phys_id = hard_smp_processor_id();
		return;
	}

	nodes_clear(node_online_map);
	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
		if (pxm_bit_test(i)) {
			int nid = acpi_map_pxm_to_node(i);
			node_set_online(nid);
		}
	}

	
	for (i = 0; i < num_node_memblks; i++)
		node_memblk[i].nid = pxm_to_node(node_memblk[i].nid);

	
	for_each_online_node(i) {
		int bank;

		bank = 0;
		for (j = 0; j < num_node_memblks; j++)
			if (node_memblk[j].nid == i)
				node_memblk[j].bank = bank++;
	}

	
	for_each_possible_early_cpu(i)
		node_cpuid[i].nid = pxm_to_node(node_cpuid[i].nid);

	printk(KERN_INFO "Number of logical nodes in system = %d\n",
	       num_online_nodes());
	printk(KERN_INFO "Number of memory chunks in system = %d\n",
	       num_node_memblks);

	if (!slit_table) {
		for (i = 0; i < MAX_NUMNODES; i++)
			for (j = 0; j < MAX_NUMNODES; j++)
				node_distance(i, j) = i == j ? LOCAL_DISTANCE :
							REMOTE_DISTANCE;
		return;
	}

	memset(numa_slit, -1, sizeof(numa_slit));
	for (i = 0; i < slit_table->locality_count; i++) {
		if (!pxm_bit_test(i))
			continue;
		node_from = pxm_to_node(i);
		for (j = 0; j < slit_table->locality_count; j++) {
			if (!pxm_bit_test(j))
				continue;
			node_to = pxm_to_node(j);
			node_distance(node_from, node_to) =
			    slit_table->entry[i * slit_table->locality_count + j];
		}
	}

#ifdef SLIT_DEBUG
	printk("ACPI 2.0 SLIT locality table:\n");
	for_each_online_node(i) {
		for_each_online_node(j)
		    printk("%03d ", node_distance(i, j));
		printk("\n");
	}
#endif
}