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x86/ioapic: Use irq_domain_create_hierarchy()

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Use the irq_domain_create_hierarchy() helper to create the hierarchical
domain, which both serves as documentation and avoids poking at
irqdomain internals.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Tested-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230213104302.17307-13-johan+linaro@kernel.org
This commit is contained in:
Johan Hovold 2023-02-13 11:42:54 +01:00 committed by Marc Zyngier
parent 930a1bbbef
commit bc1bc1b309
1 changed files with 2 additions and 5 deletions
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7
arch/x86/kernel/apic/io_apic.c
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@ -2364,9 +2364,8 @@ static int mp_irqdomain_create(int ioapic)
return -ENODEV;
}
ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops,
(void *)(long)ioapic);
ip->irqdomain = irq_domain_create_hierarchy(parent, 0, hwirqs, fn, cfg->ops,
(void *)(long)ioapic);
if (!ip->irqdomain) {
/* Release fw handle if it was allocated above */
if (!cfg->dev)
@ -2374,8 +2373,6 @@ static int mp_irqdomain_create(int ioapic)
return -ENOMEM;
}
ip->irqdomain->parent = parent;
if (cfg->type == IOAPIC_DOMAIN_LEGACY ||
cfg->type == IOAPIC_DOMAIN_STRICT)
ioapic_dynirq_base = max(ioapic_dynirq_base,