[ARM SMP] Add hotplug CPU infrastructure

This patch adds the infrastructure to support hotplug CPU on ARM
platforms.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 11 insertions, 0 deletions

diff --git a/include/asm-arm/irq.h b/include/asm-arm/irq.h
index f97912fbb10f..59975ee43cf1 100644
--- a/include/asm-arm/irq.h
+++ b/include/asm-arm/irq.h
@@ -47,5 +47,6 @@ struct irqaction;
 struct pt_regs;
 int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
 
+extern void migrate_irqs(void);
 #endif
 
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h
index dbb4d859c586..551cd3c3093c 100644
--- a/include/asm-arm/smp.h
+++ b/include/asm-arm/smp.h
@@ -66,4 +66,14 @@ struct secondary_data {
 };
 extern struct secondary_data secondary_data;
 
+extern int __cpu_disable(void);
+extern int mach_cpu_disable(unsigned int cpu);
+
+extern void __cpu_die(unsigned int cpu);
+extern void cpu_die(void);
+
+extern void platform_cpu_die(unsigned int cpu);
+extern int platform_cpu_kill(unsigned int cpu);
+extern void platform_cpu_enable(unsigned int cpu);
+
 #endif /* ifndef __ASM_ARM_SMP_H */