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    Commit-ID:  3e49a8182277ea57736285aede5f43bfa6aa11b1
    Gitweb: http://git.kernel.org/tip/3e49a8182277ea57736285aede5f43bfa6aa11b1
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Tue, 20 Jun 2017 01:37:12 +0200
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitDate: Thu, 22 Jun 2017 18:21:11 +0200

    iommu/amd: Use named irq domain interface

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Acked-by: Joerg Roedel <joro@8bytes.org>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Marc Zyngier <marc.zyngier@arm.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Keith Busch <keith.busch@intel.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: iommu@lists.linux-foundation.org
    Cc: Christoph Hellwig <hch@lst.de>
    Link: http://lkml.kernel.org/r/20170619235444.142270582@linutronix.de

    ---
    drivers/iommu/amd_iommu.c | 13 ++++++++++---
    1 file changed, 10 insertions(+), 3 deletions(-)

    diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
    index 590e1e8..503849d 100644
    --- a/drivers/iommu/amd_iommu.c
    +++ b/drivers/iommu/amd_iommu.c
    @@ -4395,13 +4395,20 @@ static struct irq_chip amd_ir_chip = {

    int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
    {
    - iommu->ir_domain = irq_domain_add_tree(NULL, &amd_ir_domain_ops, iommu);
    + struct fwnode_handle *fn;
    +
    + fn = irq_domain_alloc_named_id_fwnode("AMD-IR", iommu->index);
    + if (!fn)
    + return -ENOMEM;
    + iommu->ir_domain = irq_domain_create_tree(fn, &amd_ir_domain_ops, iommu);
    + irq_domain_free_fwnode(fn);
    if (!iommu->ir_domain)
    return -ENOMEM;

    iommu->ir_domain->parent = arch_get_ir_parent_domain();
    - iommu->msi_domain = arch_create_msi_irq_domain(iommu->ir_domain);
    -
    + iommu->msi_domain = arch_create_remap_msi_irq_domain(iommu->ir_domain,
    + "AMD-IR-MSI",
    + iommu->index);
    return 0;
    }

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