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| author |   Richard Cochran <rcochran@linutronix.de> | 2016-07-13 17:16:06 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-07-14 09:34:29 +0200 |
| commit | 6c034d1736384c23ea97509e36e84f35f4a9b23c (patch) | |
| tree | cdb8364bea95a26931777039b108c06c9ce023a4 /drivers/irqchip | |
| parent | irqchip/gicv3: Convert to hotplug state machine (diff) | |
| download | linux-dev-6c034d1736384c23ea97509e36e84f35f4a9b23c.tar.xz linux-dev-6c034d1736384c23ea97509e36e84f35f4a9b23c.zip | |
irqchip/hip04: 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: 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/20160713153333.244546182@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-hip04.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/irqchip/irq-hip04.c b/drivers/irqchip/irq-hip04.c index 9e25d8ce08e5..021b0e0833c1 100644 --- a/drivers/irqchip/irq-hip04.c +++ b/drivers/irqchip/irq-hip04.c @@ -342,26 +342,12 @@ static int hip04_irq_domain_xlate(struct irq_domain *d, return ret; } -#ifdef CONFIG_SMP -static int hip04_irq_secondary_init(struct notifier_block *nfb, - unsigned long action, - void *hcpu) +static int hip04_irq_starting_cpu(unsigned int cpu) { - if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) - hip04_irq_cpu_init(&hip04_data); - return NOTIFY_OK; + hip04_irq_cpu_init(&hip04_data); + return 0; } -/* - * Notifier for enabling the INTC CPU interface. Set an arbitrarily high - * priority because the GIC needs to be up before the ARM generic timers. - */ -static struct notifier_block hip04_irq_cpu_notifier = { - .notifier_call = hip04_irq_secondary_init, - .priority = 100, -}; -#endif - static const struct irq_domain_ops hip04_irq_domain_ops = { .map = hip04_irq_domain_map, .xlate = hip04_irq_domain_xlate, @@ -417,13 +403,12 @@ hip04_of_init(struct device_node *node, struct device_node *parent) #ifdef CONFIG_SMP set_smp_cross_call(hip04_raise_softirq); - register_cpu_notifier(&hip04_irq_cpu_notifier); #endif set_handle_irq(hip04_handle_irq); hip04_irq_dist_init(&hip04_data); - hip04_irq_cpu_init(&hip04_data); - + cpuhp_setup_state(CPUHP_AP_IRQ_HIP04_STARTING, "AP_IRQ_HIP04_STARTING", + hip04_irq_starting_cpu, NULL); return 0; } IRQCHIP_DECLARE(hip04_intc, "hisilicon,hip04-intc", hip04_of_init); |