Commit-ID: b8d9884ac6c2c5222ea4a2d23bf9bec613e8eacc
Gitweb: http://git.kernel.org/tip/b8d9884ac6c2c5222ea4a2d23bf9bec613e8eacc
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Fri, 18 Aug 2017 09:39:21 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 18 Aug 2017 10:54:42 +0200
irqchip/bcm-7038-l1: Report that effective affinity is a single target
The BCM 7038-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.zyngier@xxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Paul Burton <paul.burton@xxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: Kevin Cernekee <cernekee@xxxxxxxxx>
Cc: Wei Xu <xuwei5@xxxxxxxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Gregory Clement <gregory.clement@xxxxxxxxxxxxxxxxxx>
Cc: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20170818083925.10108-9-marc.zyngier@xxxxxxx
---
drivers/irqchip/Kconfig | 1 +
drivers/irqchip/irq-bcm7038-l1.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index b36a55d..39bfa5b 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -102,6 +102,7 @@ config BCM7038_L1_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
+ select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config BCM7120_L2_IRQ
bool
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index c2662a1..55cfb98 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -212,6 +212,8 @@ static int bcm7038_l1_set_affinity(struct irq_data *d,
__bcm7038_l1_unmask(d, first_cpu);
raw_spin_unlock_irqrestore(&intc->lock, flags);
+ irq_data_update_effective_affinity(d, cpumask_of(first_cpu));
+
return 0;
}
@@ -299,6 +301,7 @@ static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq,
{
irq_set_chip_and_handler(virq, &bcm7038_l1_irq_chip, handle_level_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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