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This adds preliminary support for CPU hotplug for SH SMP systems. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
52 lines
973 B
C
52 lines
973 B
C
#ifndef __ASM_SH_SMP_OPS_H
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#define __ASM_SH_SMP_OPS_H
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struct plat_smp_ops {
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void (*smp_setup)(void);
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unsigned int (*smp_processor_id)(void);
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void (*prepare_cpus)(unsigned int max_cpus);
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void (*start_cpu)(unsigned int cpu, unsigned long entry_point);
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void (*send_ipi)(unsigned int cpu, unsigned int message);
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int (*cpu_disable)(unsigned int cpu);
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void (*cpu_die)(unsigned int cpu);
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void (*play_dead)(void);
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};
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extern struct plat_smp_ops *mp_ops;
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extern struct plat_smp_ops shx3_smp_ops;
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#ifdef CONFIG_SMP
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static inline void plat_smp_setup(void)
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{
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BUG_ON(!mp_ops);
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mp_ops->smp_setup();
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}
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static inline void play_dead(void)
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{
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mp_ops->play_dead();
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}
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extern void register_smp_ops(struct plat_smp_ops *ops);
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#else
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static inline void plat_smp_setup(void)
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{
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/* UP, nothing to do ... */
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}
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static inline void register_smp_ops(struct plat_smp_ops *ops)
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{
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}
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static inline void play_dead(void)
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{
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BUG();
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}
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#endif /* CONFIG_SMP */
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#endif /* __ASM_SH_SMP_OPS_H */
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