From: David Woodhouse Date: Sat, 24 Oct 2020 21:35:26 +0000 (+0100) Subject: iommu/hyper-v: Implement select() method on remapping irqdomain X-Git-Tag: accepted/tizen/unified/20230118.172025~8323^2~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a491bb19f728cdb8cc1f4734ecc57c0afa099fac;p=platform%2Fkernel%2Flinux-rpi.git iommu/hyper-v: Implement select() method on remapping irqdomain Preparatory for removing irq_remapping_get_irq_domain() Signed-off-by: David Woodhouse Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20201024213535.443185-27-dwmw2@infradead.org --- diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index 37dd485..78a264a 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -101,7 +101,16 @@ static void hyperv_irq_remapping_free(struct irq_domain *domain, irq_domain_free_irqs_common(domain, virq, nr_irqs); } +static int hyperv_irq_remapping_select(struct irq_domain *d, + struct irq_fwspec *fwspec, + enum irq_domain_bus_token bus_token) +{ + /* Claim only the first (and only) I/OAPIC */ + return x86_fwspec_is_ioapic(fwspec) && fwspec->param[0] == 0; +} + static const struct irq_domain_ops hyperv_ir_domain_ops = { + .select = hyperv_irq_remapping_select, .alloc = hyperv_irq_remapping_alloc, .free = hyperv_irq_remapping_free, };