From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752565AbdHOLfi (ORCPT ); Tue, 15 Aug 2017 07:35:38 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:50692 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752514AbdHOLfg (ORCPT ); Tue, 15 Aug 2017 07:35:36 -0400 From: Marc Zyngier To: linux-kernel@vger.kernel.org Cc: Wei Xu , James Hogan , Thomas Gleixner , Jason Cooper , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Kevin Cernekee , Florian Fainelli , Chris Zankel , Max Filippov , Paul Burton , Matt Redfearn Subject: [PATCH 12/12] irqchip/xtensa-mx: Report that effective affinity is a single target Date: Tue, 15 Aug 2017 12:34:47 +0100 Message-Id: <20170815113447.14507-13-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170815113447.14507-1-marc.zyngier@arm.com> References: <20170815113447.14507-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The xtensa-mx driver only targets a single CPU at a time, even if the notional affinity is wider. Let's inform the core code about this. Signed-off-by: Marc Zyngier --- drivers/irqchip/Kconfig | 1 + drivers/irqchip/irq-xtensa-mx.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index bca9a88012f0..1139de9da21a 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -223,6 +223,7 @@ config VERSATILE_FPGA_IRQ_NR config XTENSA_MX bool select IRQ_DOMAIN + select GENERIC_IRQ_EFFECTIVE_AFF_MASK config XILINX_INTC bool diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c index 72a391e01011..a15a9510c904 100644 --- a/drivers/irqchip/irq-xtensa-mx.c +++ b/drivers/irqchip/irq-xtensa-mx.c @@ -32,6 +32,7 @@ static int xtensa_mx_irq_map(struct irq_domain *d, unsigned int irq, irq_set_status_flags(irq, IRQ_LEVEL); return 0; } + irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(irq))); return xtensa_irq_map(d, irq, hw); } @@ -121,9 +122,12 @@ static int xtensa_mx_irq_retrigger(struct irq_data *d) static int xtensa_mx_irq_set_affinity(struct irq_data *d, const struct cpumask *dest, bool force) { - unsigned mask = 1u << cpumask_any_and(dest, cpu_online_mask); + int cpu = cpumask_any_and(dest, cpu_online_mask); + unsigned mask = 1u << cpu; set_er(mask, MIROUT(d->hwirq - HW_IRQ_MX_BASE)); + irq_data_update_effective_affinity(d, cpumask_of(cpu)); + return 0; } -- 2.11.0