Merge branch 'master' into percpu

Conflicts:
	arch/powerpc/platforms/pseries/hvCall.S
	include/linux/percpu.h

1 files changed, 57 insertions, 44 deletions

diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 268f8255280..970ed579d4e 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -24,6 +24,9 @@
 #include <asm/apic.h>
 #include <asm/k8.h>
 
+static struct bootnode __initdata nodes[8];
+static nodemask_t __initdata nodes_parsed = NODE_MASK_NONE;
+
 static __init int find_northbridge(void)
 {
 	int num;
@@ -54,18 +57,6 @@ static __init void early_get_boot_cpu_id(void)
 	 * need to get boot_cpu_id so can use that to create apicid_to_node
 	 * in k8_scan_nodes()
 	 */
-	/*
-	 * Find possible boot-time SMP configuration:
-	 */
-#ifdef CONFIG_X86_MPPARSE
-	early_find_smp_config();
-#endif
-#ifdef CONFIG_ACPI
-	/*
-	 * Read APIC information from ACPI tables.
-	 */
-	early_acpi_boot_init();
-#endif
 #ifdef CONFIG_X86_MPPARSE
 	/*
 	 * get boot-time SMP configuration:
@@ -76,12 +67,26 @@ static __init void early_get_boot_cpu_id(void)
 	early_init_lapic_mapping();
 }
 
-int __init k8_scan_nodes(unsigned long start, unsigned long end)
+int __init k8_get_nodes(struct bootnode *physnodes)
 {
-	unsigned numnodes, cores, bits, apicid_base;
+	int i;
+	int ret = 0;
+
+	for_each_node_mask(i, nodes_parsed) {
+		physnodes[ret].start = nodes[i].start;
+		physnodes[ret].end = nodes[i].end;
+		ret++;
+	}
+	return ret;
+}
+
+int __init k8_numa_init(unsigned long start_pfn, unsigned long end_pfn)
+{
+	unsigned long start = PFN_PHYS(start_pfn);
+	unsigned long end = PFN_PHYS(end_pfn);
+	unsigned numnodes;
 	unsigned long prevbase;
-	struct bootnode nodes[8];
-	int i, j, nb, found = 0;
+	int i, nb, found = 0;
 	u32 nodeid, reg;
 
 	if (!early_pci_allowed())
@@ -91,16 +96,15 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 	if (nb < 0)
 		return nb;
 
-	printk(KERN_INFO "Scanning NUMA topology in Northbridge %d\n", nb);
+	pr_info("Scanning NUMA topology in Northbridge %d\n", nb);
 
 	reg = read_pci_config(0, nb, 0, 0x60);
 	numnodes = ((reg >> 4) & 0xF) + 1;
 	if (numnodes <= 1)
 		return -1;
 
-	printk(KERN_INFO "Number of nodes %d\n", numnodes);
+	pr_info("Number of physical nodes %d\n", numnodes);
 
-	memset(&nodes, 0, sizeof(nodes));
 	prevbase = 0;
 	for (i = 0; i < 8; i++) {
 		unsigned long base, limit;
@@ -111,28 +115,28 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 		nodeid = limit & 7;
 		if ((base & 3) == 0) {
 			if (i < numnodes)
-				printk("Skipping disabled node %d\n", i);
+				pr_info("Skipping disabled node %d\n", i);
 			continue;
 		}
 		if (nodeid >= numnodes) {
-			printk("Ignoring excess node %d (%lx:%lx)\n", nodeid,
-			       base, limit);
+			pr_info("Ignoring excess node %d (%lx:%lx)\n", nodeid,
+				base, limit);
 			continue;
 		}
 
 		if (!limit) {
-			printk(KERN_INFO "Skipping node entry %d (base %lx)\n",
-			       i, base);
+			pr_info("Skipping node entry %d (base %lx)\n",
+				i, base);
 			continue;
 		}
 		if ((base >> 8) & 3 || (limit >> 8) & 3) {
-			printk(KERN_ERR "Node %d using interleaving mode %lx/%lx\n",
-			       nodeid, (base>>8)&3, (limit>>8) & 3);
+			pr_err("Node %d using interleaving mode %lx/%lx\n",
+			       nodeid, (base >> 8) & 3, (limit >> 8) & 3);
 			return -1;
 		}
-		if (node_isset(nodeid, node_possible_map)) {
-			printk(KERN_INFO "Node %d already present. Skipping\n",
-			       nodeid);
+		if (node_isset(nodeid, nodes_parsed)) {
+			pr_info("Node %d already present, skipping\n",
+				nodeid);
 			continue;
 		}
 
@@ -141,8 +145,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 		limit |= (1<<24)-1;
 		limit++;
 
-		if (limit > max_pfn << PAGE_SHIFT)
-			limit = max_pfn << PAGE_SHIFT;
+		if (limit > end)
+			limit = end;
 		if (limit <= base)
 			continue;
 
@@ -154,24 +158,24 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 		if (limit > end)
 			limit = end;
 		if (limit == base) {
-			printk(KERN_ERR "Empty node %d\n", nodeid);
+			pr_err("Empty node %d\n", nodeid);
 			continue;
 		}
 		if (limit < base) {
-			printk(KERN_ERR "Node %d bogus settings %lx-%lx.\n",
+			pr_err("Node %d bogus settings %lx-%lx.\n",
 			       nodeid, base, limit);
 			continue;
 		}
 
 		/* Could sort here, but pun for now. Should not happen anyroads. */
 		if (prevbase > base) {
-			printk(KERN_ERR "Node map not sorted %lx,%lx\n",
+			pr_err("Node map not sorted %lx,%lx\n",
 			       prevbase, base);
 			return -1;
 		}
 
-		printk(KERN_INFO "Node %d MemBase %016lx Limit %016lx\n",
-		       nodeid, base, limit);
+		pr_info("Node %d MemBase %016lx Limit %016lx\n",
+			nodeid, base, limit);
 
 		found++;
 
@@ -180,18 +184,29 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 
 		prevbase = base;
 
-		node_set(nodeid, node_possible_map);
+		node_set(nodeid, nodes_parsed);
 	}
 
 	if (!found)
 		return -1;
+	return 0;
+}
+
+int __init k8_scan_nodes(void)
+{
+	unsigned int bits;
+	unsigned int cores;
+	unsigned int apicid_base;
+	int i;
 
+	BUG_ON(nodes_empty(nodes_parsed));
+	node_possible_map = nodes_parsed;
 	memnode_shift = compute_hash_shift(nodes, 8, NULL);
 	if (memnode_shift < 0) {
-		printk(KERN_ERR "No NUMA node hash function found. Contact maintainer\n");
+		pr_err("No NUMA node hash function found. Contact maintainer\n");
 		return -1;
 	}
-	printk(KERN_INFO "Using node hash shift of %d\n", memnode_shift);
+	pr_info("Using node hash shift of %d\n", memnode_shift);
 
 	/* use the coreid bits from early_identify_cpu */
 	bits = boot_cpu_data.x86_coreid_bits;
@@ -200,14 +215,12 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
 	/* need to get boot_cpu_id early for system with apicid lifting */
 	early_get_boot_cpu_id();
 	if (boot_cpu_physical_apicid > 0) {
-		printk(KERN_INFO "BSP APIC ID: %02x\n",
-				 boot_cpu_physical_apicid);
+		pr_info("BSP APIC ID: %02x\n", boot_cpu_physical_apicid);
 		apicid_base = boot_cpu_physical_apicid;
 	}
 
-	for (i = 0; i < 8; i++) {
-		if (nodes[i].start == nodes[i].end)
-			continue;
+	for_each_node_mask(i, node_possible_map) {
+		int j;
 
 		e820_register_active_regions(i,
 				nodes[i].start >> PAGE_SHIFT,