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review.evervolv.com / android_kernel_htc_msm8960 / 2c2df118a6440748e6fd71a510a66ee708c31494 / . / arch / s390 / include / asm / smp.h
blob: c2d0e638f892237c7d9ce7cdb3af8b7e6ffd9c24 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]2 * Copyright IBM Corp. 1999,2009
3 * Author(s): Denis Joseph Barrow,
4 * Martin Schwidefsky <schwidefsky@de.ibm.com>,
5 * Heiko Carstens <heiko.carstens@de.ibm.com>,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]6 */
7#ifndef __ASM_SMP_H
8#define __ASM_SMP_H
9
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]10#ifdef CONFIG_SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11
Heiko Carstens2e5061e2008-04-30 13:38:45 +0200[diff] [blame]12#include <asm/system.h>
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]13#include <asm/sigp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14
Heiko Carstens2b67fc42007-02-05 21:16:47 +0100[diff] [blame]15extern void machine_restart_smp(char *);
16extern void machine_halt_smp(void);
17extern void machine_power_off_smp(void);
18
Martin Schwidefsky7b468482009-03-26 15:24:42 +0100[diff] [blame]19#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]20
21extern int __cpu_disable (void);
22extern void __cpu_die (unsigned int cpu);
23extern void cpu_die (void) __attribute__ ((noreturn));
24extern int __cpu_up (unsigned int cpu);
25
Heiko Carstensdbd70fb2008-04-17 07:46:12 +0200[diff] [blame]26extern struct mutex smp_cpu_state_mutex;
Heiko Carstensc10fde02008-04-17 07:46:13 +0200[diff] [blame]27extern int smp_cpu_polarization[];
Heiko Carstensdbd70fb2008-04-17 07:46:12 +0200[diff] [blame]28
Heiko Carstensca9fc752008-12-25 13:38:39 +0100[diff] [blame]29extern void arch_send_call_function_single_ipi(int cpu);
Rusty Russell630cd042009-09-24 09:34:45 -0600[diff] [blame]30extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
Heiko Carstensca9fc752008-12-25 13:38:39 +0100[diff] [blame]31
Heiko Carstensf64ca212010-02-26 22:37:32 +0100[diff] [blame]32extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]33
Heiko Carstens2c2df112010-02-26 22:37:34 +0100[diff] [blame^]34extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *);
35extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp,
36 int from, int to);
37extern void smp_restart_cpu(void);
38
39#else /* CONFIG_SMP */
40
41static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
42{
43 func(data);
44}
45
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]46#endif /* CONFIG_SMP */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]47
Heiko Carstens1e489512008-04-30 13:38:37 +0200[diff] [blame]48#ifdef CONFIG_HOTPLUG_CPU
49extern int smp_rescan_cpus(void);
50#else
51static inline int smp_rescan_cpus(void) { return 0; }
52#endif
53
Heiko Carstensc20c89a2009-12-07 12:52:07 +0100[diff] [blame]54#endif /* __ASM_SMP_H */