---

yaml --- r: 234853 b: refs/heads/master c: ffe77a4 h: refs/heads/master i: 234851: bee809c v: v3
git-mirror · Feb 16, 2011 · 5e743d6 · 5e743d6
1 parent b959869
commit 5e743d6
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Showing 3 changed files with 53 additions and 47 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d8fc3afc49bb226c20e37f48a4ddd493cd092837
+refs/heads/master: ffe77a4605fb2588f8666850ad3e3b196241658f
diff --git a/trunk/arch/x86/mm/numa_64.c b/trunk/arch/x86/mm/numa_64.c
@@ -580,65 +580,73 @@ static int __init numa_emulation(unsigned long start_pfn,
 }
 #endif /* CONFIG_NUMA_EMU */
 
-void __init initmem_init(void)
+static int dummy_numa_init(void)
 {
-	int acpi = 0, amd = 0;
-	int i;
-
-#ifdef CONFIG_ACPI_NUMA
-	/*
-	 * Parse SRAT to discover nodes.
-	 */
-	acpi = !x86_acpi_numa_init();
-#endif
-
-#ifdef CONFIG_AMD_NUMA
-	if (!acpi)
-		amd = !amd_numa_init();
-#endif
-
-	nodes_clear(node_possible_map);
-	nodes_clear(node_online_map);
-
-#ifdef CONFIG_NUMA_EMU
-	setup_physnodes(0, max_pfn << PAGE_SHIFT, acpi, amd);
-	if (cmdline && !numa_emulation(0, max_pfn, acpi, amd))
-		return;
-	setup_physnodes(0, max_pfn << PAGE_SHIFT, acpi, amd);
-	nodes_clear(node_possible_map);
-	nodes_clear(node_online_map);
-#endif
-
-#ifdef CONFIG_ACPI_NUMA
-	if (!numa_off && acpi && !acpi_scan_nodes())
-		return;
-	nodes_clear(node_possible_map);
-	nodes_clear(node_online_map);
-#endif
+	return 0;
+}
 
-#ifdef CONFIG_AMD_NUMA
-	if (!numa_off && amd && !amd_scan_nodes())
-		return;
-	nodes_clear(node_possible_map);
-	nodes_clear(node_online_map);
-#endif
+static int dummy_scan_nodes(void)
+{
 	printk(KERN_INFO "%s\n",
 	       numa_off ? "NUMA turned off" : "No NUMA configuration found");
-
 	printk(KERN_INFO "Faking a node at %016lx-%016lx\n",
 	       0LU, max_pfn << PAGE_SHIFT);
+
 	/* setup dummy node covering all memory */
 	memnode_shift = 63;
 	memnodemap = memnode.embedded_map;
 	memnodemap[0] = 0;
 	node_set_online(0);
 	node_set(0, node_possible_map);
-	for (i = 0; i < MAX_LOCAL_APIC; i++)
-		set_apicid_to_node(i, NUMA_NO_NODE);
 	memblock_x86_register_active_regions(0, 0, max_pfn);
 	init_memory_mapping_high();
 	setup_node_bootmem(0, 0, max_pfn << PAGE_SHIFT);
 	numa_init_array();
+
+	return 0;
+}
+
+void __init initmem_init(void)
+{
+	int (*numa_init[])(void) = { [2] = dummy_numa_init };
+	int (*scan_nodes[])(void) = { [2] = dummy_scan_nodes };
+	int i, j;
+
+	if (!numa_off) {
+#ifdef CONFIG_ACPI_NUMA
+		numa_init[0] = x86_acpi_numa_init;
+		scan_nodes[0] = acpi_scan_nodes;
+#endif
+#ifdef CONFIG_AMD_NUMA
+		numa_init[1] = amd_numa_init;
+		scan_nodes[1] = amd_scan_nodes;
+#endif
+	}
+
+	for (i = 0; i < ARRAY_SIZE(numa_init); i++) {
+		if (!numa_init[i])
+			continue;
+
+		for (j = 0; j < MAX_LOCAL_APIC; j++)
+			set_apicid_to_node(j, NUMA_NO_NODE);
+
+		nodes_clear(node_possible_map);
+		nodes_clear(node_online_map);
+
+		if (numa_init[i]() < 0)
+			continue;
+#ifdef CONFIG_NUMA_EMU
+		setup_physnodes(0, max_pfn << PAGE_SHIFT, i == 0, i == 1);
+		if (cmdline && !numa_emulation(0, max_pfn, i == 0, i == 1))
+			return;
+		setup_physnodes(0, max_pfn << PAGE_SHIFT, i == 0, i == 1);
+		nodes_clear(node_possible_map);
+		nodes_clear(node_online_map);
+#endif
+		if (!scan_nodes[i]())
+			return;
+	}
+	BUG();
 }
 
 unsigned long __init numa_free_all_bootmem(void)

diff --git a/trunk/arch/x86/mm/srat_64.c b/trunk/arch/x86/mm/srat_64.c
@@ -78,8 +78,6 @@ static __init void bad_srat(void)
 	int i;
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
 	acpi_numa = -1;
-	for (i = 0; i < MAX_LOCAL_APIC; i++)
-		set_apicid_to_node(i, NUMA_NO_NODE);
 	for (i = 0; i < MAX_NUMNODES; i++) {
 		nodes[i].start = nodes[i].end = 0;
 		nodes_add[i].start = nodes_add[i].end = 0;
@@ -89,7 +87,7 @@ static __init void bad_srat(void)
 
 static __init inline int srat_disabled(void)
 {
-	return numa_off || acpi_numa < 0;
+	return acpi_numa < 0;
 }
 
 /* Callback for SLIT parsing */