===== arch/ia64/mm/numa.c 1.7 vs edited =====
--- 1.7/arch/ia64/mm/numa.c	Tue Feb  3 21:35:17 2004
+++ edited/arch/ia64/mm/numa.c	Mon Mar 15 11:14:51 2004
@@ -19,6 +19,8 @@
 #include <linux/bootmem.h>
 #include <asm/mmzone.h>
 #include <asm/numa.h>
+#include <asm/sn/nodepda.h>
+#include <asm/sn/module.h>
 
 static struct node *sysfs_nodes;
 static struct cpu *sysfs_cpus;
@@ -48,6 +50,13 @@
 			break;
 
 	return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0);
+}
+
+void node_to_physid(int node, char *buf)
+{
+     struct nodepda_s *nodeinfo = NODEPDA(node);
+
+     format_module_id(buf, nodeinfo->module->id, MODULE_FORMAT_BRIEF);
 }
 
 static int __init topology_init(void)
===== drivers/base/node.c 1.18 vs edited =====
--- 1.18/drivers/base/node.c	Thu Feb 12 22:35:40 2004
+++ edited/drivers/base/node.c	Mon Mar 15 11:12:14 2004
@@ -56,6 +56,17 @@
 static SYSDEV_ATTR(meminfo,S_IRUGO,node_read_meminfo,NULL);
 
 
+static ssize_t node_read_physid(struct sys_device * dev, char * buf)
+{
+	struct node *node_dev = to_node(dev);
+	int len;
+
+	len = snprintf(buf, NODE_MAX_PHYSID + 1, "%s\n", node_dev->physid);
+	return len;
+}
+
+static SYSDEV_ATTR(physid,S_IRUGO,node_read_physid,NULL);
+
 /*
  * register_node - Setup a driverfs device for a node.
  * @num - Node number to use when creating the device.
@@ -67,6 +78,7 @@
 	int error;
 
 	node->cpumap = node_to_cpumask(num);
+	node_to_physid(num, node->physid);
 	node->sysdev.id = num;
 	node->sysdev.cls = &node_class;
 	error = sysdev_register(&node->sysdev);
@@ -74,6 +86,7 @@
 	if (!error){
 		sysdev_create_file(&node->sysdev, &attr_cpumap);
 		sysdev_create_file(&node->sysdev, &attr_meminfo);
+		sysdev_create_file(&node->sysdev, &attr_physid);
 	}
 	return error;
 }
===== include/asm-ia64/topology.h 1.10 vs edited =====
--- 1.10/include/asm-ia64/topology.h	Tue Feb  3 21:35:17 2004
+++ edited/include/asm-ia64/topology.h	Mon Mar 15 11:12:15 2004
@@ -45,6 +45,8 @@
 
 void build_cpu_to_node_map(void);
 
+extern void node_to_physid(int node, char *buf);
+
 #endif /* CONFIG_NUMA */
 
 #include <asm-generic/topology.h>
===== include/linux/node.h 1.5 vs edited =====
--- 1.5/include/linux/node.h	Mon Aug 18 19:46:23 2003
+++ edited/include/linux/node.h	Mon Mar 15 11:12:17 2004
@@ -22,8 +22,11 @@
 #include <linux/sysdev.h>
 #include <linux/cpumask.h>
 
+#define NODE_MAX_PHYSID 80
+
 struct node {
 	cpumask_t cpumap;	/* Bitmap of CPUs on the Node */
+	char physid[NODE_MAX_PHYSID]; /* Physical ID of node */
 	struct sys_device	sysdev;
 };