From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751349AbcGMRTI (ORCPT ); Wed, 13 Jul 2016 13:19:08 -0400 Received: from www.linutronix.de ([62.245.132.108]:39882 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685AbcGMRSn (ORCPT ); Wed, 13 Jul 2016 13:18:43 -0400 Message-Id: <20160713153333.330661455@linutronix.de> User-Agent: quilt/0.63-1 Date: Wed, 13 Jul 2016 17:16:07 -0000 From: Anna-Maria Gleixner To: LKML Cc: Peter Zijlstra , Ingo Molnar , Thomas Gleixner , rt@linutronix.de, Richard Cochran , Jason Cooper , Linus Torvalds , Marc Zyngier , Anna-Maria Gleixner Subject: [patch V2 06/67] irqchip/armada-370-xp: Convert to hotplug state machine References: <20160713153219.128052238@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=0005-irqchip-armada-370-xp-Convert-to-hotplug-state-machi.patch X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001,URIBL_BLOCKED=0.001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Richard Cochran Install the callbacks via the state machine. Signed-off-by: Richard Cochran Cc: Jason Cooper Cc: Linus Torvalds Cc: Marc Zyngier Cc: Peter Zijlstra Cc: Thomas Gleixner Signed-off-by: Anna-Maria Gleixner --- drivers/irqchip/irq-armada-370-xp.c | 44 +++++++++++++------------------------ include/linux/cpuhotplug.h | 2 ++ 2 files changed, 17 insertions(+), 29 deletions(-) diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index e7dc6cb..e2b8fee 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -344,40 +344,22 @@ static void armada_mpic_send_doorbell(const struct cpumask *mask, writel((map << 8) | irq, main_int_base + ARMADA_370_XP_SW_TRIG_INT_OFFS); } +#endif -static int armada_xp_mpic_secondary_init(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static int armada_xp_mpic_starting_cpu(unsigned int cpu) { - if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) { - armada_xp_mpic_perf_init(); - armada_xp_mpic_smp_cpu_init(); - } - - return NOTIFY_OK; + armada_xp_mpic_perf_init(); + armada_xp_mpic_smp_cpu_init(); + return 0; } -static struct notifier_block armada_370_xp_mpic_cpu_notifier = { - .notifier_call = armada_xp_mpic_secondary_init, - .priority = 100, -}; - -static int mpic_cascaded_secondary_init(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static int mpic_cascaded_starting_cpu(unsigned int cpu) { - if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) { - armada_xp_mpic_perf_init(); - enable_percpu_irq(parent_irq, IRQ_TYPE_NONE); - } - - return NOTIFY_OK; + armada_xp_mpic_perf_init(); + enable_percpu_irq(parent_irq, IRQ_TYPE_NONE); + return 0; } -static struct notifier_block mpic_cascaded_cpu_notifier = { - .notifier_call = mpic_cascaded_secondary_init, - .priority = 100, -}; -#endif /* CONFIG_SMP */ - static const struct irq_domain_ops armada_370_xp_mpic_irq_ops = { .map = armada_370_xp_mpic_irq_map, .xlate = irq_domain_xlate_onecell, @@ -595,11 +577,15 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node, set_handle_irq(armada_370_xp_handle_irq); #ifdef CONFIG_SMP set_smp_cross_call(armada_mpic_send_doorbell); - register_cpu_notifier(&armada_370_xp_mpic_cpu_notifier); + cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_ARMADA_XP_STARTING, + "AP_IRQ_ARMADA_XP_STARTING", + armada_xp_mpic_starting_cpu, NULL); #endif } else { #ifdef CONFIG_SMP - register_cpu_notifier(&mpic_cascaded_cpu_notifier); + cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_ARMADA_CASC_STARTING, + "AP_IRQ_ARMADA_CASC_STARTING", + mpic_cascaded_starting_cpu, NULL); #endif irq_set_chained_handler(parent_irq, armada_370_xp_mpic_handle_cascade_irq); diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 62ab4ff..3a08ab9 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -12,6 +12,8 @@ enum cpuhp_state { CPUHP_AP_IRQ_GIC_STARTING, CPUHP_AP_IRQ_GICV3_STARTING, CPUHP_AP_IRQ_HIP04_STARTING, + CPUHP_AP_IRQ_ARMADA_XP_STARTING, + CPUHP_AP_IRQ_ARMADA_CASC_STARTING, CPUHP_AP_NOTIFY_STARTING, CPUHP_AP_ONLINE, CPUHP_TEARDOWN_CPU, -- 2.8.1