From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753025AbcGSHBG (ORCPT ); Tue, 19 Jul 2016 03:01:06 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44706 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752623AbcGSHBD (ORCPT ); Tue, 19 Jul 2016 03:01:03 -0400 Date: Tue, 19 Jul 2016 00:00:30 -0700 From: tip-bot for Sebastian Andrzej Siewior Message-ID: Cc: mingo@kernel.org, torvalds@linux-foundation.org, anna-maria@linutronix.de, marc.zyngier@arm.com, jason@lakedaemon.net, peterz@infradead.org, hpa@zytor.com, tglx@linutronix.de, bigeasy@linutronix.de, linux-kernel@vger.kernel.org Reply-To: linux-kernel@vger.kernel.org, bigeasy@linutronix.de, tglx@linutronix.de, hpa@zytor.com, peterz@infradead.org, jason@lakedaemon.net, marc.zyngier@arm.com, anna-maria@linutronix.de, torvalds@linux-foundation.org, mingo@kernel.org In-Reply-To: <20160713153333.416260485@linutronix.de> References: <20160713153333.416260485@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:smp/hotplug] irqchip/bcm2836: Convert to hotplug state machine Git-Commit-ID: 7ca04bc277431a271061dd85f98b6da4171ad2e4 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 7ca04bc277431a271061dd85f98b6da4171ad2e4 Gitweb: http://git.kernel.org/tip/7ca04bc277431a271061dd85f98b6da4171ad2e4 Author: Sebastian Andrzej Siewior AuthorDate: Wed, 13 Jul 2016 17:16:07 +0000 Committer: Ingo Molnar CommitDate: Thu, 14 Jul 2016 09:34:30 +0200 irqchip/bcm2836: Convert to hotplug state machine Install the callbacks via the state machine. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Anna-Maria Gleixner Acked-by: Jason Cooper Cc: Linus Torvalds Cc: Marc Zyngier Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153333.416260485@linutronix.de Signed-off-by: Ingo Molnar --- drivers/irqchip/irq-bcm2836.c | 34 +++++++++++++--------------------- include/linux/cpuhotplug.h | 1 + 2 files changed, 14 insertions(+), 21 deletions(-) diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c index 72ff1d5..f2575cb 100644 --- a/drivers/irqchip/irq-bcm2836.c +++ b/drivers/irqchip/irq-bcm2836.c @@ -202,26 +202,19 @@ static void bcm2836_arm_irqchip_send_ipi(const struct cpumask *mask, } } -/* Unmasks the IPI on the CPU when it's online. */ -static int bcm2836_arm_irqchip_cpu_notify(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static int bcm2836_cpu_starting(unsigned int cpu) { - unsigned int cpu = (unsigned long)hcpu; - unsigned int int_reg = LOCAL_MAILBOX_INT_CONTROL0; - unsigned int mailbox = 0; - - if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) - bcm2836_arm_irqchip_unmask_per_cpu_irq(int_reg, mailbox, cpu); - else if (action == CPU_DYING) - bcm2836_arm_irqchip_mask_per_cpu_irq(int_reg, mailbox, cpu); - - return NOTIFY_OK; + bcm2836_arm_irqchip_unmask_per_cpu_irq(LOCAL_MAILBOX_INT_CONTROL0, 0, + cpu); + return 0; } -static struct notifier_block bcm2836_arm_irqchip_cpu_notifier = { - .notifier_call = bcm2836_arm_irqchip_cpu_notify, - .priority = 100, -}; +static int bcm2836_cpu_dying(unsigned int cpu) +{ + bcm2836_arm_irqchip_mask_per_cpu_irq(LOCAL_MAILBOX_INT_CONTROL0, 0, + cpu); + return 0; +} #ifdef CONFIG_ARM int __init bcm2836_smp_boot_secondary(unsigned int cpu, @@ -251,10 +244,9 @@ bcm2836_arm_irqchip_smp_init(void) { #ifdef CONFIG_SMP /* Unmask IPIs to the boot CPU. */ - bcm2836_arm_irqchip_cpu_notify(&bcm2836_arm_irqchip_cpu_notifier, - CPU_STARTING, - (void *)(uintptr_t)smp_processor_id()); - register_cpu_notifier(&bcm2836_arm_irqchip_cpu_notifier); + cpuhp_setup_state(CPUHP_AP_IRQ_BCM2836_STARTING, + "AP_IRQ_BCM2836_STARTING", bcm2836_cpu_starting, + bcm2836_cpu_dying); set_smp_cross_call(bcm2836_arm_irqchip_send_ipi); diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 3a08ab9..420cfcf 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -14,6 +14,7 @@ enum cpuhp_state { CPUHP_AP_IRQ_HIP04_STARTING, CPUHP_AP_IRQ_ARMADA_XP_STARTING, CPUHP_AP_IRQ_ARMADA_CASC_STARTING, + CPUHP_AP_IRQ_BCM2836_STARTING, CPUHP_AP_NOTIFY_STARTING, CPUHP_AP_ONLINE, CPUHP_TEARDOWN_CPU,