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Commit 50091212 authored by Marc Zyngier's avatar Marc Zyngier Committed by Thomas Gleixner
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irqchip/xtensa-mx: Report that effective affinity is a single target 



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: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: http://lkml.kernel.org/r/20170818083925.10108-13-marc.zyngier@arm.com
parent 18416e45

drivers/irqchip/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/irqchip/irq-xtensa-mx.c

+5 −1
Original line number Diff line number Diff line
@@ -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;



}