* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Silicon Graphics, Inc. All rights reserved.
*
* SGI Altix topology and hardware performance monitoring API.
* Mark Goodwin <markgw@sgi.com>.
#include <linux/vmalloc.h>
#include <linux/seq_file.h>
#include <linux/miscdevice.h>
+#include <linux/utsname.h>
#include <linux/cpumask.h>
#include <linux/smp_lock.h>
+#include <linux/nodemask.h>
#include <asm/processor.h>
#include <asm/topology.h>
#include <asm/smp.h>
#include <asm/semaphore.h>
-#include <asm/segment.h>
#include <asm/uaccess.h>
-#include <asm-ia64/sal.h>
-#include <asm-ia64/sn/sn_sal.h>
-#include <asm-ia64/sn/sn2/sn_hwperf.h>
+#include <asm/sal.h>
+#include <asm/sn/io.h>
+#include <asm/sn/sn_sal.h>
+#include <asm/sn/module.h>
+#include <asm/sn/geo.h>
+#include <asm/sn/sn2/sn_hwperf.h>
+#include <asm/sn/addrs.h>
static void *sn_hwperf_salheap = NULL;
static int sn_hwperf_obj_cnt = 0;
struct sn_hwperf_object_info *objbuf = NULL;
if ((e = sn_hwperf_init()) < 0) {
- printk("sn_hwperf_init failed: err %d\n", e);
+ printk(KERN_ERR "sn_hwperf_init failed: err %d\n", e);
goto out;
}
return e;
}
+static int sn_hwperf_location_to_bpos(char *location,
+ int *rack, int *bay, int *slot, int *slab)
+{
+ char type;
+
+ /* first scan for an old style geoid string */
+ if (sscanf(location, "%03d%c%02d#%d",
+ rack, &type, bay, slab) == 4)
+ *slot = 0;
+ else /* scan for a new bladed geoid string */
+ if (sscanf(location, "%03d%c%02d^%02d#%d",
+ rack, &type, bay, slot, slab) != 5)
+ return -1;
+ /* success */
+ return 0;
+}
+
static int sn_hwperf_geoid_to_cnode(char *location)
{
int cnode;
- int mod, slot, slab;
- int cmod, cslot, cslab;
+ geoid_t geoid;
+ moduleid_t module_id;
+ int rack, bay, slot, slab;
+ int this_rack, this_bay, this_slot, this_slab;
- if (sscanf(location, "%03dc%02d#%d", &mod, &slot, &slab) != 3)
+ if (sn_hwperf_location_to_bpos(location, &rack, &bay, &slot, &slab))
return -1;
- for (cnode = 0; cnode < numnodes; cnode++) {
- /* XXX: need a better way than this ... */
- if (sscanf(NODEPDA(cnode)->hwg_node_name,
- "hw/module/%03dc%02d/slab/%d", &cmod, &cslot, &cslab) == 3) {
- if (mod == cmod && slot == cslot && slab == cslab)
- break;
+
+ /*
+ * FIXME: replace with cleaner for_each_XXX macro which addresses
+ * both compute and IO nodes once ACPI3.0 is available.
+ */
+ for (cnode = 0; cnode < num_cnodes; cnode++) {
+ geoid = cnodeid_get_geoid(cnode);
+ module_id = geo_module(geoid);
+ this_rack = MODULE_GET_RACK(module_id);
+ this_bay = MODULE_GET_BPOS(module_id);
+ this_slot = geo_slot(geoid);
+ this_slab = geo_slab(geoid);
+ if (rack == this_rack && bay == this_bay &&
+ slot == this_slot && slab == this_slab) {
+ break;
}
}
- return cnode < numnodes ? cnode : -1;
+ return node_possible(cnode) ? cnode : -1;
}
static int sn_hwperf_obj_to_cnode(struct sn_hwperf_object_info * obj)
{
+ if (!SN_HWPERF_IS_NODE(obj) && !SN_HWPERF_IS_IONODE(obj))
+ BUG();
if (!obj->sn_hwp_this_part)
return -1;
return sn_hwperf_geoid_to_cnode(obj->location);
for (ordinal=0, p=objs; p != obj; p++) {
if (SN_HWPERF_FOREIGN(p))
continue;
- if (p->location[3] == obj->location[3])
+ if (SN_HWPERF_SAME_OBJTYPE(p, obj))
ordinal++;
}
return ordinal;
}
-#ifndef MODULE_IOBRICK
-/* this will be available when ioif TIO support is added */
-#define MODULE_IOBRICK (MODULE_OPUSBRICK+1)
-#endif
+static const char *slabname_node = "node"; /* SHub asic */
+static const char *slabname_ionode = "ionode"; /* TIO asic */
+static const char *slabname_router = "router"; /* NL3R or NL4R */
+static const char *slabname_other = "other"; /* unknown asic */
+
+static const char *sn_hwperf_get_slabname(struct sn_hwperf_object_info *obj,
+ struct sn_hwperf_object_info *objs, int *ordinal)
+{
+ int isnode;
+ const char *slabname = slabname_other;
+
+ if ((isnode = SN_HWPERF_IS_NODE(obj)) || SN_HWPERF_IS_IONODE(obj)) {
+ slabname = isnode ? slabname_node : slabname_ionode;
+ *ordinal = sn_hwperf_obj_to_cnode(obj);
+ }
+ else {
+ *ordinal = sn_hwperf_generic_ordinal(obj, objs);
+ if (SN_HWPERF_IS_ROUTER(obj))
+ slabname = slabname_router;
+ }
+
+ return slabname;
+}
-static const char *sn_hwperf_get_brickname(struct sn_hwperf_object_info *obj,
- struct sn_hwperf_object_info *objs, int *ordinal)
+static void print_pci_topology(struct seq_file *s)
+{
+ char *p;
+ size_t sz;
+ int e;
+
+ for (sz = PAGE_SIZE; sz < 16 * PAGE_SIZE; sz += PAGE_SIZE) {
+ if (!(p = (char *)kmalloc(sz, GFP_KERNEL)))
+ break;
+ e = ia64_sn_ioif_get_pci_topology(__pa(p), sz);
+ if (e == SALRET_OK)
+ seq_puts(s, p);
+ kfree(p);
+ if (e == SALRET_OK || e == SALRET_NOT_IMPLEMENTED)
+ break;
+ }
+}
+
+static inline int sn_hwperf_has_cpus(cnodeid_t node)
+{
+ return node_online(node) && nr_cpus_node(node);
+}
+
+static inline int sn_hwperf_has_mem(cnodeid_t node)
+{
+ return node_online(node) && NODE_DATA(node)->node_present_pages;
+}
+
+static struct sn_hwperf_object_info *
+sn_hwperf_findobj_id(struct sn_hwperf_object_info *objbuf,
+ int nobj, int id)
{
int i;
- const char *objtype = NULL;
+ struct sn_hwperf_object_info *p = objbuf;
+
+ for (i=0; i < nobj; i++, p++) {
+ if (p->id == id)
+ return p;
+ }
+
+ return NULL;
+
+}
+
+static int sn_hwperf_get_nearest_node_objdata(struct sn_hwperf_object_info *objbuf,
+ int nobj, cnodeid_t node, cnodeid_t *near_mem_node, cnodeid_t *near_cpu_node)
+{
+ int e;
+ struct sn_hwperf_object_info *nodeobj = NULL;
+ struct sn_hwperf_object_info *op;
+ struct sn_hwperf_object_info *dest;
+ struct sn_hwperf_object_info *router;
+ struct sn_hwperf_port_info ptdata[16];
+ int sz, i, j;
+ cnodeid_t c;
+ int found_mem = 0;
+ int found_cpu = 0;
+
+ if (!node_possible(node))
+ return -EINVAL;
+
+ if (sn_hwperf_has_cpus(node)) {
+ if (near_cpu_node)
+ *near_cpu_node = node;
+ found_cpu++;
+ }
- for (i=0; i < MAX_BRICK_TYPES; i++) {
- if (brick_types[i] != obj->location[3])
+ if (sn_hwperf_has_mem(node)) {
+ if (near_mem_node)
+ *near_mem_node = node;
+ found_mem++;
+ }
+
+ if (found_cpu && found_mem)
+ return 0; /* trivially successful */
+
+ /* find the argument node object */
+ for (i=0, op=objbuf; i < nobj; i++, op++) {
+ if (!SN_HWPERF_IS_NODE(op) && !SN_HWPERF_IS_IONODE(op))
continue;
- switch (i) {
- case MODULE_CBRICK:
- objtype = "node";
- *ordinal = sn_hwperf_obj_to_cnode(obj); /* cnodeid */
- break;
-
- case MODULE_RBRICK:
- objtype = "router";
- *ordinal = sn_hwperf_generic_ordinal(obj, objs);
- break;
-
- case MODULE_IOBRICK:
- objtype = "ionode";
- *ordinal = sn_hwperf_generic_ordinal(obj, objs);
- break;
+ if (node == sn_hwperf_obj_to_cnode(op)) {
+ nodeobj = op;
+ break;
}
- break;
+ }
+ if (!nodeobj) {
+ e = -ENOENT;
+ goto err;
}
- if (i == MAX_BRICK_TYPES) {
- objtype = "other";
- *ordinal = sn_hwperf_generic_ordinal(obj, objs);
+ /* get it's interconnect topology */
+ sz = op->ports * sizeof(struct sn_hwperf_port_info);
+ if (sz > sizeof(ptdata))
+ BUG();
+ e = ia64_sn_hwperf_op(sn_hwperf_master_nasid,
+ SN_HWPERF_ENUM_PORTS, nodeobj->id, sz,
+ (u64)&ptdata, 0, 0, NULL);
+ if (e != SN_HWPERF_OP_OK) {
+ e = -EINVAL;
+ goto err;
+ }
+
+ /* find nearest node with cpus and nearest memory */
+ for (router=NULL, j=0; j < op->ports; j++) {
+ dest = sn_hwperf_findobj_id(objbuf, nobj, ptdata[j].conn_id);
+ if (dest && SN_HWPERF_IS_ROUTER(dest))
+ router = dest;
+ if (!dest || SN_HWPERF_FOREIGN(dest) ||
+ !SN_HWPERF_IS_NODE(dest) || SN_HWPERF_IS_IONODE(dest)) {
+ continue;
+ }
+ c = sn_hwperf_obj_to_cnode(dest);
+ if (!found_cpu && sn_hwperf_has_cpus(c)) {
+ if (near_cpu_node)
+ *near_cpu_node = c;
+ found_cpu++;
+ }
+ if (!found_mem && sn_hwperf_has_mem(c)) {
+ if (near_mem_node)
+ *near_mem_node = c;
+ found_mem++;
+ }
}
- return objtype;
+ if (router && (!found_cpu || !found_mem)) {
+ /* search for a node connected to the same router */
+ sz = router->ports * sizeof(struct sn_hwperf_port_info);
+ if (sz > sizeof(ptdata))
+ BUG();
+ e = ia64_sn_hwperf_op(sn_hwperf_master_nasid,
+ SN_HWPERF_ENUM_PORTS, router->id, sz,
+ (u64)&ptdata, 0, 0, NULL);
+ if (e != SN_HWPERF_OP_OK) {
+ e = -EINVAL;
+ goto err;
+ }
+ for (j=0; j < router->ports; j++) {
+ dest = sn_hwperf_findobj_id(objbuf, nobj,
+ ptdata[j].conn_id);
+ if (!dest || dest->id == node ||
+ SN_HWPERF_FOREIGN(dest) ||
+ !SN_HWPERF_IS_NODE(dest) ||
+ SN_HWPERF_IS_IONODE(dest)) {
+ continue;
+ }
+ c = sn_hwperf_obj_to_cnode(dest);
+ if (!found_cpu && sn_hwperf_has_cpus(c)) {
+ if (near_cpu_node)
+ *near_cpu_node = c;
+ found_cpu++;
+ }
+ if (!found_mem && sn_hwperf_has_mem(c)) {
+ if (near_mem_node)
+ *near_mem_node = c;
+ found_mem++;
+ }
+ if (found_cpu && found_mem)
+ break;
+ }
+ }
+
+ if (!found_cpu || !found_mem) {
+ /* resort to _any_ node with CPUs and memory */
+ for (i=0, op=objbuf; i < nobj; i++, op++) {
+ if (SN_HWPERF_FOREIGN(op) ||
+ SN_HWPERF_IS_IONODE(op) ||
+ !SN_HWPERF_IS_NODE(op)) {
+ continue;
+ }
+ c = sn_hwperf_obj_to_cnode(op);
+ if (!found_cpu && sn_hwperf_has_cpus(c)) {
+ if (near_cpu_node)
+ *near_cpu_node = c;
+ found_cpu++;
+ }
+ if (!found_mem && sn_hwperf_has_mem(c)) {
+ if (near_mem_node)
+ *near_mem_node = c;
+ found_mem++;
+ }
+ if (found_cpu && found_mem)
+ break;
+ }
+ }
+
+ if (!found_cpu || !found_mem)
+ e = -ENODATA;
+
+err:
+ return e;
}
+
static int sn_topology_show(struct seq_file *s, void *d)
{
int sz;
int pt;
- int e;
+ int e = 0;
int i;
int j;
- const char *brickname;
+ const char *slabname;
int ordinal;
cpumask_t cpumask;
char slice;
struct sn_hwperf_object_info *p;
struct sn_hwperf_object_info *obj = d; /* this object */
struct sn_hwperf_object_info *objs = s->private; /* all objects */
+ u8 shubtype;
+ u8 system_size;
+ u8 sharing_size;
+ u8 partid;
+ u8 coher;
+ u8 nasid_shift;
+ u8 region_size;
+ u16 nasid_mask;
+ int nasid_msb;
if (obj == objs) {
- seq_printf(s, "# sn_topology version 1\n");
+ seq_printf(s, "# sn_topology version 2\n");
seq_printf(s, "# objtype ordinal location partition"
" [attribute value [, ...]]\n");
+
+ if (ia64_sn_get_sn_info(0,
+ &shubtype, &nasid_mask, &nasid_shift, &system_size,
+ &sharing_size, &partid, &coher, ®ion_size))
+ BUG();
+ for (nasid_msb=63; nasid_msb > 0; nasid_msb--) {
+ if (((u64)nasid_mask << nasid_shift) & (1ULL << nasid_msb))
+ break;
+ }
+ seq_printf(s, "partition %u %s local "
+ "shubtype %s, "
+ "nasid_mask 0x%016lx, "
+ "nasid_bits %d:%d, "
+ "system_size %d, "
+ "sharing_size %d, "
+ "coherency_domain %d, "
+ "region_size %d\n",
+
+ partid, system_utsname.nodename,
+ shubtype ? "shub2" : "shub1",
+ (u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
+ system_size, sharing_size, coher, region_size);
+
+ print_pci_topology(s);
}
if (SN_HWPERF_FOREIGN(obj)) {
return 0;
}
- for (i = 0; obj->name[i]; i++) {
+ for (i = 0; i < SN_HWPERF_MAXSTRING && obj->name[i]; i++) {
if (obj->name[i] == ' ')
obj->name[i] = '_';
}
- brickname = sn_hwperf_get_brickname(obj, objs, &ordinal);
- seq_printf(s, "%s %d %s %s asic %s", brickname, ordinal, obj->location,
+ slabname = sn_hwperf_get_slabname(obj, objs, &ordinal);
+ seq_printf(s, "%s %d %s %s asic %s", slabname, ordinal, obj->location,
obj->sn_hwp_this_part ? "local" : "shared", obj->name);
- if (obj->location[3] != 'c')
+ if (!SN_HWPERF_IS_NODE(obj) && !SN_HWPERF_IS_IONODE(obj))
seq_putc(s, '\n');
else {
+ cnodeid_t near_mem = -1;
+ cnodeid_t near_cpu = -1;
+
seq_printf(s, ", nasid 0x%x", cnodeid_to_nasid(ordinal));
- for (i=0; i < numnodes; i++) {
- seq_printf(s, i ? ":%d" : ", dist %d",
- node_distance(ordinal, i));
+
+ if (sn_hwperf_get_nearest_node_objdata(objs, sn_hwperf_obj_cnt,
+ ordinal, &near_mem, &near_cpu) == 0) {
+ seq_printf(s, ", near_mem_nodeid %d, near_cpu_nodeid %d",
+ near_mem, near_cpu);
+ }
+
+ if (!SN_HWPERF_IS_IONODE(obj)) {
+ for_each_online_node(i) {
+ seq_printf(s, i ? ":%d" : ", dist %d",
+ node_distance(ordinal, i));
+ }
}
+
seq_putc(s, '\n');
/*
- * CPUs on this node
+ * CPUs on this node, if any
*/
cpumask = node_to_cpumask(ordinal);
for_each_online_cpu(i) {
for_each_online_cpu(j) {
seq_printf(s, j ? ":%d" : ", dist %d",
node_distance(
- cpuid_to_cnodeid(i),
- cpuid_to_cnodeid(j)));
+ cpu_to_node(i),
+ cpu_to_node(j)));
}
seq_putc(s, '\n');
}
* numalink ports
*/
sz = obj->ports * sizeof(struct sn_hwperf_port_info);
- if ((ptdata = vmalloc(sz)) == NULL)
+ if ((ptdata = kmalloc(sz, GFP_KERNEL)) == NULL)
return -ENOMEM;
e = ia64_sn_hwperf_op(sn_hwperf_master_nasid,
SN_HWPERF_ENUM_PORTS, obj->id, sz,
break;
}
}
- if (i >= sn_hwperf_obj_cnt)
- continue;
seq_printf(s, "numalink %d %s-%d",
ordinal+pt, obj->location, ptdata[pt].port);
+ if (i >= sn_hwperf_obj_cnt) {
+ /* no connection */
+ seq_puts(s, " local endpoint disconnected"
+ ", protocol unknown\n");
+ continue;
+ }
+
if (obj->sn_hwp_this_part && p->sn_hwp_this_part)
/* both ends local to this partition */
seq_puts(s, " local");
*/
seq_printf(s, " endpoint %s-%d, protocol %s\n",
p->location, ptdata[pt].conn_port,
- strcmp(obj->name, "NL3Router") == 0 ||
- strcmp(p->name, "NL3Router") == 0 ?
- "LLP3" : "LLP4");
+ (SN_HWPERF_IS_NL3ROUTER(obj) ||
+ SN_HWPERF_IS_NL3ROUTER(p)) ? "LLP3" : "LLP4");
}
- vfree(ptdata);
+ kfree(ptdata);
}
return 0;
op_info->a->arg &= SN_HWPERF_ARG_OBJID_MASK;
if (cpu != SN_HWPERF_ARG_ANY_CPU) {
- if (cpu >= num_online_cpus() || !cpu_online(cpu)) {
+ if (cpu >= NR_CPUS || !cpu_online(cpu)) {
r = -EINVAL;
goto out;
}
return r;
}
+/* map SAL hwperf error code to system error code */
+static int sn_hwperf_map_err(int hwperf_err)
+{
+ int e;
+
+ switch(hwperf_err) {
+ case SN_HWPERF_OP_OK:
+ e = 0;
+ break;
+
+ case SN_HWPERF_OP_NOMEM:
+ e = -ENOMEM;
+ break;
+
+ case SN_HWPERF_OP_NO_PERM:
+ e = -EPERM;
+ break;
+
+ case SN_HWPERF_OP_IO_ERROR:
+ e = -EIO;
+ break;
+
+ case SN_HWPERF_OP_BUSY:
+ e = -EBUSY;
+ break;
+
+ case SN_HWPERF_OP_RECONFIGURE:
+ e = -EAGAIN;
+ break;
+
+ case SN_HWPERF_OP_INVAL:
+ default:
+ e = -EINVAL;
+ break;
+ }
+
+ return e;
+}
+
/*
* ioctl for "sn_hwperf" misc device
*/
r = -EINVAL;
goto error;
}
- r = copy_from_user(&a, (const void *)arg,
+ r = copy_from_user(&a, (const void __user *)arg,
sizeof(struct sn_hwperf_ioctl_args));
if (r != 0) {
r = -EFAULT;
}
if (op & SN_HWPERF_OP_MEM_COPYIN) {
- r = copy_from_user(p, (const void *)a.ptr, a.sz);
+ r = copy_from_user(p, (const void __user *)a.ptr, a.sz);
if (r != 0) {
r = -EFAULT;
goto error;
if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) {
memset(p, 0, a.sz);
for (i = 0; i < nobj; i++) {
+ int cpuobj_index = 0;
+ if (!SN_HWPERF_IS_NODE(objs + i))
+ continue;
node = sn_hwperf_obj_to_cnode(objs + i);
for_each_online_cpu(j) {
if (node != cpu_to_node(j))
continue;
- cpuobj = (struct sn_hwperf_object_info *) p + j;
+ cpuobj = (struct sn_hwperf_object_info *) p + cpuobj_index++;
slice = 'a' + cpuid_to_slice(j);
cdata = cpu_data(j);
cpuobj->id = j;
case SN_HWPERF_GET_NODE_NASID:
if (a.sz != sizeof(u64) ||
- (node = a.arg) < 0 || node >= numnodes) {
+ (node = a.arg) < 0 || !node_possible(node)) {
r = -EINVAL;
goto error;
}
vfree(objs);
goto error;
}
+
+ if (!SN_HWPERF_IS_NODE(objs + i) &&
+ !SN_HWPERF_IS_IONODE(objs + i)) {
+ r = -ENOENT;
+ vfree(objs);
+ goto error;
+ }
+
*(u64 *)p = (u64)sn_hwperf_obj_to_cnode(objs + i);
vfree(objs);
}
op_info.v0 = &v0;
op_info.op = op;
r = sn_hwperf_op_cpu(&op_info);
+ if (r) {
+ r = sn_hwperf_map_err(r);
+ a.v0 = v0;
+ goto error;
+ }
break;
default:
/* all other ops are a direct SAL call */
r = ia64_sn_hwperf_op(sn_hwperf_master_nasid, op,
a.arg, a.sz, (u64) p, 0, 0, &v0);
+ if (r) {
+ r = sn_hwperf_map_err(r);
+ goto error;
+ }
a.v0 = v0;
break;
}
if (op & SN_HWPERF_OP_MEM_COPYOUT) {
- r = copy_to_user((void *)a.ptr, p, a.sz);
+ r = copy_to_user((void __user *)a.ptr, p, a.sz);
if (r != 0) {
r = -EFAULT;
goto error;
}
error:
- if (p)
- vfree(p);
+ vfree(p);
lock_kernel();
return r;
/* single threaded, once-only initialization */
down(&sn_hwperf_init_mutex);
+
if (sn_hwperf_salheap) {
up(&sn_hwperf_init_mutex);
return e;
sn_hwperf_salheap = NULL;
sn_hwperf_obj_cnt = 0;
}
-
- if (!e) {
- /*
- * Register a dynamic misc device for ioctl. Platforms
- * supporting hotplug will create /dev/sn_hwperf, else
- * user can to look up the minor number in /proc/misc.
- */
- if ((e = misc_register(&sn_hwperf_dev)) != 0) {
- printk(KERN_ERR "sn_hwperf_init: misc register "
- "for \"sn_hwperf\" failed, err %d\n", e);
- }
- }
-
up(&sn_hwperf_init_mutex);
return e;
}
{
struct seq_file *seq = file->private_data;
- if (seq->private)
- vfree(seq->private);
+ vfree(seq->private);
return seq_release(inode, file);
}
+
+int sn_hwperf_get_nearest_node(cnodeid_t node,
+ cnodeid_t *near_mem_node, cnodeid_t *near_cpu_node)
+{
+ int e;
+ int nobj;
+ struct sn_hwperf_object_info *objbuf;
+
+ if ((e = sn_hwperf_enum_objects(&nobj, &objbuf)) == 0) {
+ e = sn_hwperf_get_nearest_node_objdata(objbuf, nobj,
+ node, near_mem_node, near_cpu_node);
+ vfree(objbuf);
+ }
+
+ return e;
+}
+
+static int __devinit sn_hwperf_misc_register_init(void)
+{
+ int e;
+
+ if (!ia64_platform_is("sn2"))
+ return 0;
+
+ sn_hwperf_init();
+
+ /*
+ * Register a dynamic misc device for hwperf ioctls. Platforms
+ * supporting hotplug will create /dev/sn_hwperf, else user
+ * can to look up the minor number in /proc/misc.
+ */
+ if ((e = misc_register(&sn_hwperf_dev)) != 0) {
+ printk(KERN_ERR "sn_hwperf_misc_register_init: failed to "
+ "register misc device for \"%s\"\n", sn_hwperf_dev.name);
+ }
+
+ return e;
+}
+
+device_initcall(sn_hwperf_misc_register_init); /* after misc_init() */
+EXPORT_SYMBOL(sn_hwperf_get_nearest_node);
git://git.onelab.eu / linux-2.6.git / blobdiff