Commit-ID:  d0ed5e8e14e95fb3b70885be5ae35d0736866f72
Gitweb:     http://git.kernel.org/tip/d0ed5e8e14e95fb3b70885be5ae35d0736866f72
Author:     Marc Zyngier <marc.zyng...@arm.com>
AuthorDate: Fri, 18 Aug 2017 09:39:20 +0100
Committer:  Thomas Gleixner <t...@linutronix.de>
CommitDate: Fri, 18 Aug 2017 10:54:41 +0200

irqchip/bcm-6345-l1: Report that effective affinity is a single target

The BCM 6345-L1 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 <marc.zyng...@arm.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: Andrew Lunn <and...@lunn.ch>
Cc: James Hogan <james.ho...@imgtec.com>
Cc: Jason Cooper <ja...@lakedaemon.net>
Cc: Paul Burton <paul.bur...@imgtec.com>
Cc: Chris Zankel <ch...@zankel.net>
Cc: Kevin Cernekee <cerne...@gmail.com>
Cc: Wei Xu <xuw...@hisilicon.com>
Cc: Max Filippov <jcmvb...@gmail.com>
Cc: Florian Fainelli <f.faine...@gmail.com>
Cc: Gregory Clement <gregory.clem...@free-electrons.com>
Cc: Matt Redfearn <matt.redfe...@imgtec.com>
Cc: Sebastian Hesselbarth <sebastian.hesselba...@gmail.com>
Link: http://lkml.kernel.org/r/20170818083925.10108-8-marc.zyng...@arm.com

---
 drivers/irqchip/Kconfig          | 1 +
 drivers/irqchip/irq-bcm6345-l1.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index cd68877..b36a55d 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -96,6 +96,7 @@ config BCM6345_L1_IRQ
        bool
        select GENERIC_IRQ_CHIP
        select IRQ_DOMAIN
+       select GENERIC_IRQ_EFFECTIVE_AFF_MASK
 
 config BCM7038_L1_IRQ
        bool
diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index daa4ae8..43f8abe 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -231,6 +231,8 @@ static int bcm6345_l1_set_affinity(struct irq_data *d,
        }
        raw_spin_unlock_irqrestore(&intc->lock, flags);
 
+       irq_data_update_effective_affinity(d, cpumask_of(new_cpu));
+
        return IRQ_SET_MASK_OK_NOCOPY;
 }
 
@@ -291,6 +293,7 @@ static int bcm6345_l1_map(struct irq_domain *d, unsigned 
int virq,
        irq_set_chip_and_handler(virq,
                &bcm6345_l1_irq_chip, handle_percpu_irq);
        irq_set_chip_data(virq, d->host_data);
+       irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(virq)));
        return 0;
 }
 

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