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ARM/mvebu: Convert to hotplug state machine 

Install the callbacks via the state machine.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153333.503198935@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Sebastian Andrzej Siewior 2016-07-13 17:16:08 +00:00 committed by Ingo Molnar
parent 7ca04bc277
commit 7fbbaebf8c
2 changed files with 7 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm/mach-mvebu/coherency.c
View File

@ -111,20 +111,12 @@ static struct notifier_block mvebu_hwcc_pci_nb __maybe_unused = {
.notifier_call = mvebu_hwcc_notifier,
};
static int armada_xp_clear_shared_l2_notifier_func(struct notifier_block *nfb,
unsigned long action, void *hcpu)
static int armada_xp_clear_l2_starting(unsigned int cpu)
{
if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
armada_xp_clear_shared_l2();
return NOTIFY_OK;
armada_xp_clear_shared_l2();
return 0;
}
static struct notifier_block armada_xp_clear_shared_l2_notifier = {
.notifier_call = armada_xp_clear_shared_l2_notifier_func,
.priority = 100,
};
static void __init armada_370_coherency_init(struct device_node *np)
{
struct resource res;
@ -155,8 +147,9 @@ static void __init armada_370_coherency_init(struct device_node *np)
of_node_put(cpu_config_np);
register_cpu_notifier(&armada_xp_clear_shared_l2_notifier);
cpuhp_setup_state_nocalls(CPUHP_AP_ARM_MVEBU_COHERENCY,
"AP_ARM_MVEBU_COHERENCY",
armada_xp_clear_l2_starting, NULL);
exit:
set_cpu_coherent();
}

1
include/linux/cpuhotplug.h
View File

@ -15,6 +15,7 @@ enum cpuhp_state {
CPUHP_AP_IRQ_ARMADA_XP_STARTING,
CPUHP_AP_IRQ_ARMADA_CASC_STARTING,
CPUHP_AP_IRQ_BCM2836_STARTING,
CPUHP_AP_ARM_MVEBU_COHERENCY,
CPUHP_AP_NOTIFY_STARTING,
CPUHP_AP_ONLINE,
CPUHP_TEARDOWN_CPU,