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irqchip: gic: Perform the gic_secondary_init() call via CPU notifier

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All the calls to gic_secondary_init() pass 0 as the first argument.
Since this function is called on each CPU when starting, it can be done
in a platform-independent way via a CPU notifier registered by the GIC
code.

Signed-off-by: Catalin Marinas <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Acked-by: Santosh Shilimkar <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Acked-by: Srinidhi Kasagar <[email protected]>
Tested-by: Dinh Nguyen <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Tested-by: Marc Zyngier <[email protected]>
Cc: Russell King <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: David Brown <[email protected]>
Cc: Bryan Huntsman <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Magnus Damm <[email protected]>
Cc: Shiraz Hashim <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Barry Song <[email protected]>
This commit is contained in:
Catalin Marinas 2013-01-14 18:05:37 +00:00
commit c0114709ed
17 changed files with 21 additions and 131 deletions
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28
drivers/irqchip/irq-gic.c
View file

@ -28,6 +28,7 @@
#include <linux/module.h>
#include <linux/list.h>
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/cpu_pm.h>
#include <linux/cpumask.h>
#include <linux/io.h>
@ -699,6 +700,25 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
return 0;
}
#ifdef CONFIG_SMP
static int __cpuinit gic_secondary_init(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
if (action == CPU_STARTING)
gic_cpu_init(&gic_data[0]);
return NOTIFY_OK;
}
/*
* 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 __cpuinitdata gic_cpu_notifier = {
.notifier_call = gic_secondary_init,
.priority = 100,
};
#endif
const struct irq_domain_ops gic_irq_domain_ops = {
.map = gic_irq_domain_map,
.xlate = gic_irq_domain_xlate,
@ -789,6 +809,7 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
#ifdef CONFIG_SMP
set_smp_cross_call(gic_raise_softirq);
register_cpu_notifier(&gic_cpu_notifier);
#endif
set_handle_irq(gic_handle_irq);
@ -799,13 +820,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
gic_pm_init(gic);
}
void __cpuinit gic_secondary_init(unsigned int gic_nr)
{
BUG_ON(gic_nr >= MAX_GIC_NR);
gic_cpu_init(&gic_data[gic_nr]);
}
#ifdef CONFIG_OF
static int gic_cnt __initdata = 0;