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irqchip: irq-xtensa-mx: fix initial IRQ affinity
commit a255ee2925
upstream.
When irq-xtensa-mx chip is used in non-SMP configuration its
irq_set_affinity callback is not called leaving IRQ affinity set empty.
As a result IRQ delivery does not work in that configuration.
Initialize IRQ affinity of the xtensa MX interrupt distributor to CPU 0
for all external IRQ lines.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
a8b3881d68
commit
5bf33cb84a
1 changed files with 14 additions and 4 deletions
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@ -151,14 +151,25 @@ static struct irq_chip xtensa_mx_irq_chip = {
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.irq_set_affinity = xtensa_mx_irq_set_affinity,
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};
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static void __init xtensa_mx_init_common(struct irq_domain *root_domain)
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{
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unsigned int i;
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irq_set_default_host(root_domain);
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secondary_init_irq();
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/* Initialize default IRQ routing to CPU 0 */
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for (i = 0; i < XCHAL_NUM_EXTINTERRUPTS; ++i)
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set_er(1, MIROUT(i));
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}
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int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
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{
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struct irq_domain *root_domain =
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irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
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&xtensa_mx_irq_domain_ops,
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&xtensa_mx_irq_chip);
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irq_set_default_host(root_domain);
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secondary_init_irq();
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xtensa_mx_init_common(root_domain);
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return 0;
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}
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@ -168,8 +179,7 @@ static int __init xtensa_mx_init(struct device_node *np,
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struct irq_domain *root_domain =
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irq_domain_add_linear(np, NR_IRQS, &xtensa_mx_irq_domain_ops,
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&xtensa_mx_irq_chip);
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irq_set_default_host(root_domain);
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secondary_init_irq();
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xtensa_mx_init_common(root_domain);
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return 0;
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}
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IRQCHIP_DECLARE(xtensa_mx_irq_chip, "cdns,xtensa-mx", xtensa_mx_init);
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