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authorRalf Baechle <ralf@linux-mips.org>2009-06-23 13:00:31 +0400
committerRalf Baechle <ralf@linux-mips.org>2009-06-24 21:34:40 +0400
commit1b2bc75c1bde6581d2694cb3ed7fb06b69685008 (patch)
tree800fc23052bccb1fbf8acfbaabbf5648c69daa9e /arch/mips/kernel/topology.c
parent4ac4aa5cc3b00cc558575065ae71043e92d1a69a (diff)
downloadlinux-1b2bc75c1bde6581d2694cb3ed7fb06b69685008.tar.xz
MIPS: Add arch generic CPU hotplug
Each platform has to add support for CPU hotplugging itself by providing suitable definitions for the cpu_disable and cpu_die of the smp_ops methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the necessary changes. This patch contains the changes to the dummy smp_ops definition for uni-processor systems. Parts of the code contributed by Cavium Inc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/topology.c')
-rw-r--r--arch/mips/kernel/topology.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c
index 660e44ed44d7..cf3eb61fad12 100644
--- a/arch/mips/kernel/topology.c
+++ b/arch/mips/kernel/topology.c
@@ -17,7 +17,10 @@ static int __init topology_init(void)
#endif /* CONFIG_NUMA */
for_each_present_cpu(i) {
- ret = register_cpu(&per_cpu(cpu_devices, i), i);
+ struct cpu *c = &per_cpu(cpu_devices, i);
+
+ c->hotpluggable = 1;
+ ret = register_cpu(c, i);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
"failed (%d)\n", i, ret);