Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6b8d6422 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Thomas Gleixner
Browse files

ia64/mca: Convert to hotplug state machine 



Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs.

Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-ia64@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160906170457.32393-5-bigeasy@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent a4fa9cc2

arch/ia64/kernel/mca.c

+4 −22
Original line number Diff line number Diff line
@@ -1890,7 +1890,7 @@ ia64_mca_cpu_init(void *cpu_data) 
							      PAGE_KERNEL)));

}



static void ia64_mca_cmc_vector_adjust(void *dummy)

static int ia64_mca_cpu_online(unsigned int cpu)

{

	unsigned long flags;
@@ -1898,25 +1898,9 @@ static void ia64_mca_cmc_vector_adjust(void *dummy) 
	if (!cmc_polling_enabled)

		ia64_mca_cmc_vector_enable(NULL);

	local_irq_restore(flags);

	return 0;

}



static int mca_cpu_callback(struct notifier_block *nfb,

				      unsigned long action,

				      void *hcpu)

{

	switch (action) {

	case CPU_ONLINE:

	case CPU_ONLINE_FROZEN:

		ia64_mca_cmc_vector_adjust(NULL);

		break;

	}

	return NOTIFY_OK;

}



static struct notifier_block mca_cpu_notifier = {

	.notifier_call = mca_cpu_callback

};



/*

 * ia64_mca_init

 *
@@ -2111,15 +2095,13 @@ ia64_mca_late_init(void) 
	if (!mca_init)

		return 0;



	register_hotcpu_notifier(&mca_cpu_notifier);



	/* Setup the CMCI/P vector and handler */

	setup_timer(&cmc_poll_timer, ia64_mca_cmc_poll, 0UL);



	/* Unmask/enable the vector */

	cmc_polling_enabled = 0;

	schedule_work(&cmc_enable_work);



	cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "ia64/mca:online",

			  ia64_mca_cpu_online, NULL);

	IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __func__);



#ifdef CONFIG_ACPI