sh/SH-X3 SMP: Convert to hotplug state machine
Install the callbacks via the state machine. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-sh@vger.kernel.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160906170457.32393-6-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -122,32 +122,16 @@ static void shx3_update_boot_vector(unsigned int cpu)
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__raw_writel(STBCR_RESET, STBCR_REG(cpu));
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}
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static int
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shx3_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
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static int shx3_cpu_prepare(unsigned int cpu)
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{
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unsigned int cpu = (unsigned int)hcpu;
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switch (action) {
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case CPU_UP_PREPARE:
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shx3_update_boot_vector(cpu);
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break;
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case CPU_ONLINE:
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pr_info("CPU %u is now 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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shx3_update_boot_vector(cpu);
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return 0;
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}
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static struct notifier_block shx3_cpu_notifier = {
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.notifier_call = shx3_cpu_callback,
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};
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static int register_shx3_cpu_notifier(void)
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{
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register_hotcpu_notifier(&shx3_cpu_notifier);
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cpuhp_setup_state_nocalls(CPUHP_SH_SH3X_PREPARE, "sh/shx3:prepare",
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shx3_cpu_prepare, NULL);
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return 0;
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}
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late_initcall(register_shx3_cpu_notifier);
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@ -37,6 +37,7 @@ enum cpuhp_state {
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CPUHP_POWERPC_MMU_CTX_PREPARE,
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CPUHP_NOTIFY_PREPARE,
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CPUHP_ARM_SHMOBILE_SCU_PREPARE,
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CPUHP_SH_SH3X_PREPARE,
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CPUHP_TIMERS_DEAD,
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CPUHP_BRINGUP_CPU,
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CPUHP_AP_IDLE_DEAD,
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