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authorRalf Baechle <ralf@linux-mips.org>2009-06-23 10:00:31 +0100
committerRalf Baechle <ralf@linux-mips.org>2009-06-24 18:34:40 +0100
commit1b2bc75c1bde6581d2694cb3ed7fb06b69685008 (patch)
tree800fc23052bccb1fbf8acfbaabbf5648c69daa9e /arch/mips/include/asm/smp-ops.h
parent4ac4aa5cc3b00cc558575065ae71043e92d1a69a (diff)
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/include/asm/smp-ops.h')
-rw-r--r--arch/mips/include/asm/smp-ops.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 64ffc0290b8..fd545547b8a 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -26,6 +26,10 @@ struct plat_smp_ops {
void (*boot_secondary)(int cpu, struct task_struct *idle);
void (*smp_setup)(void);
void (*prepare_cpus)(unsigned int max_cpus);
+#ifdef CONFIG_HOTPLUG_CPU
+ int (*cpu_disable)(void);
+ void (*cpu_die)(unsigned int cpu);
+#endif
};
extern void register_smp_ops(struct plat_smp_ops *ops);