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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-04-14 15:54:02 +0200
committerJason Cooper <jason@lakedaemon.net>2014-05-08 14:42:00 +0000
commitd7df84b3cecad4c768e4065d1d61b2f8fd02b7fa (patch)
tree64b55219237723b95291719c0fbe9a3f42efe9cf /arch
parentef37d337e1d37bd84ccaa5811a8d1f00f8b3677c (diff)
downloadlinux-d7df84b3cecad4c768e4065d1d61b2f8fd02b7fa.tar.bz2
irqchip: irq-armada-370-xp: Use cpu notifier to initialize secondary CPUs
Some irqchip initialization must be done on secondary CPUs. On mvebu platforms, this is currently achieved by having the arch/arm/mach-mvebu/platsmp.c code directly call into a function exported by the irqchip driver, which isn't really nice. This commit changes this by using the same solution as the one used in the GIC driver: the irqchip driver registers a CPU notifier, which is used to do the secondary CPU IRQ initialization. This way, the irqchip driver is completely autonomous, and the function no longer needs to be exposed from the irqchip driver to the SoC code. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397483648-26611-6-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-mvebu/armada-370-xp.h1
-rw-r--r--arch/arm/mach-mvebu/platsmp.c6
2 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm/mach-mvebu/armada-370-xp.h b/arch/arm/mach-mvebu/armada-370-xp.h
index cd57c78af271..c3465f5b1250 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.h
+++ b/arch/arm/mach-mvebu/armada-370-xp.h
@@ -20,7 +20,6 @@
#define ARMADA_XP_MAX_CPUS 4
-void armada_xp_mpic_smp_cpu_init(void);
void armada_xp_secondary_startup(void);
extern struct smp_operations armada_xp_smp_ops;
#endif
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index 6f06f6ddb51e..e43727f391f7 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -70,11 +70,6 @@ static void __init set_secondary_cpus_clock(void)
}
}
-static void armada_xp_secondary_init(unsigned int cpu)
-{
- armada_xp_mpic_smp_cpu_init();
-}
-
static int armada_xp_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
pr_info("Booting CPU %d\n", cpu);
@@ -122,7 +117,6 @@ static void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus)
struct smp_operations armada_xp_smp_ops __initdata = {
.smp_init_cpus = armada_xp_smp_init_cpus,
.smp_prepare_cpus = armada_xp_smp_prepare_cpus,
- .smp_secondary_init = armada_xp_secondary_init,
.smp_boot_secondary = armada_xp_boot_secondary,
#ifdef CONFIG_HOTPLUG_CPU
.cpu_die = armada_xp_cpu_die,