1 files changed, 64 insertions, 0 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
new file mode 100644
index 00000000..c77c6de6
--- /dev/null
+++ b/arch/s390/include/asm/smp.h
@@ -0,0 +1,64 @@
+/*
+ *    Copyright IBM Corp. 1999,2012
+ *    Author(s): Denis Joseph Barrow,
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#ifdef CONFIG_SMP
+
+#include <asm/lowcore.h>
+
+#define raw_smp_processor_id()	(S390_lowcore.cpu_nr)
+
+extern struct mutex smp_cpu_state_mutex;
+extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
+
+extern int __cpu_up(unsigned int cpu);
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+extern void smp_call_online_cpu(void (*func)(void *), void *);
+extern void smp_call_ipl_cpu(void (*func)(void *), void *);
+
+extern int smp_find_processor_id(u16 address);
+extern int smp_store_status(int cpu);
+extern int smp_vcpu_scheduled(int cpu);
+extern void smp_yield_cpu(int cpu);
+extern void smp_yield(void);
+extern void smp_stop_cpu(void);
+
+#else /* CONFIG_SMP */
+
+static inline void smp_call_ipl_cpu(void (*func)(void *), void *data)
+{
+	func(data);
+}
+
+static inline void smp_call_online_cpu(void (*func)(void *), void *data)
+{
+	func(data);
+}
+
+static inline int smp_find_processor_id(int address) { return 0; }
+static inline int smp_vcpu_scheduled(int cpu) { return 1; }
+static inline void smp_yield_cpu(int cpu) { }
+static inline void smp_yield(void) { }
+static inline void smp_stop_cpu(void) { }
+
+#endif /* CONFIG_SMP */
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern int smp_rescan_cpus(void);
+extern void __noreturn cpu_die(void);
+extern void __cpu_die(unsigned int cpu);
+extern int __cpu_disable(void);
+#else
+static inline int smp_rescan_cpus(void) { return 0; }
+static inline void cpu_die(void) { }
+#endif
+
+#endif /* __ASM_SMP_H */