summaryrefslogtreecommitdiff
path: root/drivers/irqchip
diff options
context:
space:
mode:
authorRichard Cochran <rcochran@linutronix.de>2016-07-13 17:16:05 +0000
committerIngo Molnar <mingo@kernel.org>2016-07-14 09:34:28 +0200
commit6670a6d864653859229d2e921ea193a4a677dfea (patch)
tree6d84ff6b5eb63ef7b60150901760ac9ab0f21f52 /drivers/irqchip
parent93131f7a9b5c261f9995b4a6cbd7dbbec1351d2f (diff)
irqchip/gicv3: Convert to hotplug state machine
Install the callbacks via the state machine. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153333.163186301@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-gic-v3.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 2c5ba0e704bf..6fc56c3466b0 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -538,23 +538,13 @@ static void gic_cpu_init(void)
}
#ifdef CONFIG_SMP
-static int gic_secondary_init(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
+
+static int gic_starting_cpu(unsigned int cpu)
{
- if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
- gic_cpu_init();
- return NOTIFY_OK;
+ gic_cpu_init();
+ return 0;
}
-/*
- * Notifier for enabling the GIC CPU interface. Set an arbitrarily high
- * priority because the GIC needs to be up before the ARM generic timers.
- */
-static struct notifier_block gic_cpu_notifier = {
- .notifier_call = gic_secondary_init,
- .priority = 100,
-};
-
static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
unsigned long cluster_id)
{
@@ -634,7 +624,9 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
static void gic_smp_init(void)
{
set_smp_cross_call(gic_raise_softirq);
- register_cpu_notifier(&gic_cpu_notifier);
+ cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_GICV3_STARTING,
+ "AP_IRQ_GICV3_STARTING", gic_starting_cpu,
+ NULL);
}
static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,