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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:39:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:39:36 -0800
commit1eca9acbf9cda6437db7de1097c7a18014b1289d (patch)
tree04c03ae847df74e45eac2eba5920761986a779c6 /arch/x86/kernel/acpi
parent0091945b4732469bb39bbb4556ce08a25d89d1c2 (diff)
parentca2107c9d6cf44fb915402d6f12b9d9ff3925cd7 (diff)
Merge branch 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, numa: Remove configurable node size support for numa emulation x86, numa: Add fixed node size option for numa emulation x86, numa: Fix numa emulation calculation of big nodes x86, acpi: Map hotadded cpu to correct node.
Diffstat (limited to 'arch/x86/kernel/acpi')
-rw-r--r--arch/x86/kernel/acpi/boot.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index af1c5833ff2..f95703098f8 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -49,6 +49,7 @@ EXPORT_SYMBOL(acpi_disabled);
#ifdef CONFIG_X86_64
# include <asm/proto.h>
+# include <asm/numa_64.h>
#endif /* X86 */
#define BAD_MADT_ENTRY(entry, end) ( \
@@ -482,6 +483,25 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
+static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+{
+#ifdef CONFIG_ACPI_NUMA
+ int nid;
+
+ nid = acpi_get_node(handle);
+ if (nid == -1 || !node_online(nid))
+ return;
+#ifdef CONFIG_X86_64
+ apicid_to_node[physid] = nid;
+ numa_set_node(cpu, nid);
+#else /* CONFIG_X86_32 */
+ apicid_2_node[physid] = nid;
+ cpu_to_node_map[cpu] = nid;
+#endif
+
+#endif
+}
+
static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -540,6 +560,7 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
}
cpu = cpumask_first(new_map);
+ acpi_map_cpu2node(handle, cpu, physid);
*pcpu = cpu;
retval = 0;