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mips/octeon/smp: Convert to hotplug state machine
Install the callbacks via the state machine. [ tglx: Renamed the state to MIPS_SOC_PREPARE so it can be reused by other SOCs ] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160906170457.32393-16-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -380,29 +380,11 @@ static int octeon_update_boot_vector(unsigned int cpu)
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return 0;
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}
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static int octeon_cpu_callback(struct notifier_block *nfb,
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unsigned long action, void *hcpu)
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{
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unsigned int cpu = (unsigned long)hcpu;
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switch (action & ~CPU_TASKS_FROZEN) {
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case CPU_UP_PREPARE:
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octeon_update_boot_vector(cpu);
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break;
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case CPU_ONLINE:
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pr_info("Cpu %d online\n", cpu);
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break;
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case CPU_DEAD:
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break;
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}
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return NOTIFY_OK;
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}
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static int register_cavium_notifier(void)
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{
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hotcpu_notifier(octeon_cpu_callback, 0);
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return 0;
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return cpuhp_setup_state_nocalls(CPUHP_MIPS_SOC_PREPARE,
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"mips/cavium:prepare",
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octeon_update_boot_vector, NULL);
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}
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late_initcall(register_cavium_notifier);
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@ -44,6 +44,7 @@ enum cpuhp_state {
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CPUHP_SH_SH3X_PREPARE,
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CPUHP_TIMERS_DEAD,
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CPUHP_NOTF_ERR_INJ_PREPARE,
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CPUHP_MIPS_SOC_PREPARE,
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CPUHP_BRINGUP_CPU,
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CPUHP_AP_IDLE_DEAD,
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CPUHP_AP_OFFLINE,
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