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Groups > linux.kernel > #1712107
| From | Marc Zyngier <marc.zyngier@arm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 03/12] irqchip/gic: Report that effective affinity is a single target |
| Date | 2017-08-15 13:40 +0200 |
| Message-ID | <ueImv-Il-49@gated-at.bofh.it> (permalink) |
| References | <ueImt-Il-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The GIC 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@arm.com> --- drivers/irqchip/Kconfig | 1 + drivers/irqchip/irq-gic.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index f1fd5f44d1d4..586929d072ca 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -7,6 +7,7 @@ config ARM_GIC select IRQ_DOMAIN select IRQ_DOMAIN_HIERARCHY select MULTI_IRQ_HANDLER + select GENERIC_IRQ_EFFECTIVE_AFF_MASK config ARM_GIC_PM bool diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 1b1df4f770bd..20dd2ba3d603 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -344,6 +344,8 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, writel_relaxed(val | bit, reg); gic_unlock_irqrestore(flags); + irq_data_update_effective_affinity(d, cpumask_of(cpu)); + return IRQ_SET_MASK_OK_DONE; } #endif @@ -966,6 +968,7 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq, irq_domain_set_info(d, irq, hw, &gic->chip, d->host_data, handle_fasteoi_irq, NULL, NULL); irq_set_probe(irq); + irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(irq))); } return 0; } -- 2.11.0
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[PATCH 00/12] genirq/irqchip: Effective affinity fixups Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 02/12] genirq/proc: Use the the accessor to report the effective affinity Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 01/12] genirq: Restrict effective affinity to single-target interrupts Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
Re: [PATCH 01/12] genirq: Restrict effective affinity to single-target interrupts Thomas Gleixner <tglx@linutronix.de> - 2017-08-15 14:10 +0200
Re: [PATCH 01/12] genirq: Restrict effective affinity to single-target interrupts Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 14:20 +0200
[PATCH 11/12] irqchip/mips-gic: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
Re: [PATCH 11/12] irqchip/mips-gic: Report that effective affinity is a single target Paul Burton <paul.burton@imgtec.com> - 2017-08-15 18:30 +0200
Re: [PATCH 11/12] irqchip/mips-gic: Report that effective affinity is a single target Paul Burton <paul.burton@imgtec.com> - 2017-08-15 18:50 +0200
Re: [PATCH 11/12] irqchip/mips-gic: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 18:50 +0200
[PATCH 08/12] irqchip/bcm-7038-l1: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 04/12] irqchip/gic-v3: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 12/12] irqchip/xtensa-mx: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 07/12] irqchip/bcm-6345-l1: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
[PATCH 03/12] irqchip/gic: Report that effective affinity is a single target Marc Zyngier <marc.zyngier@arm.com> - 2017-08-15 13:40 +0200
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