[PATCH v2 07/12] irqchip/bcm-6345-l1: Report that effective affinity is a single target

From: Marc Zyngier
Date: Fri Aug 18 2017 - 04:39:59 EST


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.zyngier@xxxxxxx>
---
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 cd688777553c..b36a55d6833e 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 daa4ae89e466..43f8abe40878 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;
}

--
2.11.0