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-rw-r--r--arch/x86/include/asm/acpi.h1
-rw-r--r--arch/x86/kernel/setup.c5
-rw-r--r--arch/x86/mm/numa_64.c4
-rw-r--r--arch/x86/mm/srat_64.c28
4 files changed, 27 insertions, 11 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 4518dc50090..e3d4a0daff5 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -158,6 +158,7 @@ struct bootnode;
#ifdef CONFIG_ACPI_NUMA
extern int acpi_numa;
+extern int acpi_get_nodes(struct bootnode *physnodes);
extern int acpi_scan_nodes(unsigned long start, unsigned long end);
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index fda0032c25c..f8914198270 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -938,11 +938,12 @@ void __init setup_arch(char **cmdline_p)
/*
* Parse SRAT to discover nodes.
*/
- acpi_numa_init();
+ acpi = acpi_numa_init();
#endif
#ifdef CONFIG_K8_NUMA
- k8 = !k8_numa_init(0, max_pfn);
+ if (!acpi)
+ k8 = !k8_numa_init(0, max_pfn);
#endif
initmem_init(0, max_pfn, acpi, k8);
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index dad5f42dd35..d1a3d94efc8 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -540,8 +540,8 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
#endif
#ifdef CONFIG_ACPI_NUMA
- if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
- last_pfn << PAGE_SHIFT))
+ if (!numa_off && acpi && !acpi_scan_nodes(start_pfn << PAGE_SHIFT,
+ last_pfn << PAGE_SHIFT))
return;
nodes_clear(node_possible_map);
nodes_clear(node_online_map);
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index dbb5381f7b3..891cbe65b2d 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -290,8 +290,6 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
start, end);
- e820_register_active_regions(node, start >> PAGE_SHIFT,
- end >> PAGE_SHIFT);
if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) {
update_nodes_add(node, start, end);
@@ -338,6 +336,19 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
void __init acpi_numa_arch_fixup(void) {}
+int __init acpi_get_nodes(struct bootnode *physnodes)
+{
+ 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;
+}
+
/* Use the information discovered above to actually set up the nodes. */
int __init acpi_scan_nodes(unsigned long start, unsigned long end)
{
@@ -350,11 +361,6 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
for (i = 0; i < MAX_NUMNODES; i++)
cutoff_node(i, start, end);
- if (!nodes_cover_memory(nodes)) {
- bad_srat();
- return -1;
- }
-
memnode_shift = compute_hash_shift(node_memblk_range, num_node_memblks,
memblk_nodeid);
if (memnode_shift < 0) {
@@ -364,6 +370,14 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
return -1;
}
+ for_each_node_mask(i, nodes_parsed)
+ e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
+ nodes[i].end >> PAGE_SHIFT);
+ if (!nodes_cover_memory(nodes)) {
+ bad_srat();
+ return -1;
+ }
+
/* Account for nodes with cpus and no memory */
nodes_or(node_possible_map, nodes_parsed, cpu_nodes_parsed);