linux-kernel - [tip:irq/core] iommu/vt-d: Use named irq domain interface

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Date:   Thu, 22 Jun 2017 09:45:43 -0700
From:   tip-bot for Thomas Gleixner <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, keith.busch@...el.com, hch@....de,
        axboe@...nel.dk, hpa@...or.com, mingo@...nel.org,
        linux-kernel@...r.kernel.org, joro@...tes.org,
        peterz@...radead.org, mpe@...erman.id.au, marc.zyngier@....com
Subject: [tip:irq/core] iommu/vt-d: Use named irq domain interface

Commit-ID:  cea29b656a5e5f1a7b7de42795c3ae6fc417ab0b
Gitweb:     http://git.kernel.org/tip/cea29b656a5e5f1a7b7de42795c3ae6fc417ab0b
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Tue, 20 Jun 2017 01:37:11 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 22 Jun 2017 18:21:10 +0200

iommu/vt-d: Use named irq domain interface

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Joerg Roedel <joro@...tes.org>
Cc: Jens Axboe <axboe@...nel.dk>
Cc: Marc Zyngier <marc.zyngier@....com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Keith Busch <keith.busch@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: iommu@...ts.linux-foundation.org
Cc: Christoph Hellwig <hch@....de>
Link: http://lkml.kernel.org/r/20170619235444.063083997@linutronix.de

---
 drivers/iommu/intel_irq_remapping.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index ba5b580..8fc641e 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -500,8 +500,9 @@ static void iommu_enable_irq_remapping(struct intel_iommu *iommu)
 static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 {
 	struct ir_table *ir_table;
-	struct page *pages;
+	struct fwnode_handle *fn;
 	unsigned long *bitmap;
+	struct page *pages;
 
 	if (iommu->ir_table)
 		return 0;
@@ -525,15 +526,24 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 		goto out_free_pages;
 	}
 
-	iommu->ir_domain = irq_domain_add_hierarchy(arch_get_ir_parent_domain(),
-						    0, INTR_REMAP_TABLE_ENTRIES,
-						    NULL, &intel_ir_domain_ops,
-						    iommu);
+	fn = irq_domain_alloc_named_id_fwnode("INTEL-IR", iommu->seq_id);
+	if (!fn)
+		goto out_free_bitmap;
+
+	iommu->ir_domain =
+		irq_domain_create_hierarchy(arch_get_ir_parent_domain(),
+					    0, INTR_REMAP_TABLE_ENTRIES,
+					    fn, &intel_ir_domain_ops,
+					    iommu);
+	irq_domain_free_fwnode(fn);
 	if (!iommu->ir_domain) {
 		pr_err("IR%d: failed to allocate irqdomain\n", iommu->seq_id);
 		goto out_free_bitmap;
 	}
-	iommu->ir_msi_domain = arch_create_msi_irq_domain(iommu->ir_domain);
+	iommu->ir_msi_domain =
+		arch_create_remap_msi_irq_domain(iommu->ir_domain,
+						 "INTEL-IR-MSI",
+						 iommu->seq_id);
 
 	ir_table->base = page_address(pages);
 	ir_table->bitmap = bitmap;