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mips/octeon/smp: Convert to hotplug state machine

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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 <[email protected]>
Acked-by: Ralf Baechle <[email protected]>
Cc: [email protected]
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Sebastian Andrzej Siewior authored and Thomas Gleixner committed 2016-09-19 21:44:32 +02:00
1 parent 8c58898b3e
commit dd6d7c6f3d
2 files changed
+4 -21
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arch/mips/cavium-octeon/smp.c
+3 -21
View File
@@ -380,29 +380,11 @@ static int octeon_update_boot_vector(unsigned int cpu)
return 0;
}
static int octeon_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_UP_PREPARE:
octeon_update_boot_vector(cpu);
break;
case CPU_ONLINE:
pr_info("Cpu %d online\n", cpu);
break;
case CPU_DEAD:
break;
}
return NOTIFY_OK;
}
static int register_cavium_notifier(void)
{
hotcpu_notifier(octeon_cpu_callback, 0);
return 0;
return cpuhp_setup_state_nocalls(CPUHP_MIPS_SOC_PREPARE,
"mips/cavium:prepare",
octeon_update_boot_vector, NULL);
}
late_initcall(register_cavium_notifier);
include/linux/cpuhotplug.h
+1
View File
@@ -44,6 +44,7 @@ enum cpuhp_state {
CPUHP_SH_SH3X_PREPARE,
CPUHP_TIMERS_DEAD,
CPUHP_NOTF_ERR_INJ_PREPARE,
CPUHP_MIPS_SOC_PREPARE,
CPUHP_BRINGUP_CPU,
CPUHP_AP_IDLE_DEAD,
CPUHP_AP_OFFLINE,