linux-kernel - [tip:irq/core] irqchip/gicv3-its: Register irq domain with NEXUS token

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Date:	Wed, 29 Jul 2015 15:28:49 -0700
From:	tip-bot for Marc Zyngier <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	marc.zyngier@....com, mingo@...nel.org, dhdang@....com,
	wangyijing@...wei.com, linux-kernel@...r.kernel.org,
	bhelgaas@...gle.com, jiang.liu@...ux.intel.com, hpa@...or.com,
	hanjun.guo@...aro.org, tglx@...utronix.de, majun258@...wei.com,
	linux-arm-kernel@...ts.infradead.org, jason@...edaemon.net,
	lorenzo.pieralisi@....com
Subject: [tip:irq/core] irqchip/gicv3-its:
  Register irq domain with NEXUS token

Commit-ID:  e55dcd4d8b8b82e4ecef2937c6d1dde7ba82916b
Gitweb:     http://git.kernel.org/tip/e55dcd4d8b8b82e4ecef2937c6d1dde7ba82916b
Author:     Marc Zyngier <marc.zyngier@....com>
AuthorDate: Tue, 28 Jul 2015 14:46:19 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 30 Jul 2015 00:14:38 +0200

irqchip/gicv3-its: Register irq domain with NEXUS token

Now that we can distinguish between multiple domains carrying the
same device_node, tag the raw ITS domain with DOMAIN_BUS_NEXUS.
This will allow MSI providers built on top of the raw ITS domain
to identify it.

Signed-off-by: Marc Zyngier <marc.zyngier@....com>
Cc: <linux-arm-kernel@...ts.infradead.org>
Cc: Yijing Wang <wangyijing@...wei.com>
Cc: Ma Jun <majun258@...wei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Duc Dang <dhdang@....com>
Cc: Hanjun Guo <hanjun.guo@...aro.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Jason Cooper <jason@...edaemon.net>
Link: http://lkml.kernel.org/r/1438091186-10244-13-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 drivers/irqchip/irq-gic-v3-its.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 7f995d8..58dc70e 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1444,13 +1444,14 @@ static int its_probe(struct device_node *node, struct irq_domain *parent)
 	writel_relaxed(GITS_CTLR_ENABLE, its->base + GITS_CTLR);
 
 	if (of_property_read_bool(its->msi_chip.of_node, "msi-controller")) {
-		its->domain = irq_domain_add_tree(NULL, &its_domain_ops, its);
+		its->domain = irq_domain_add_tree(node, &its_domain_ops, its);
 		if (!its->domain) {
 			err = -ENOMEM;
 			goto out_free_tables;
 		}
 
 		its->domain->parent = parent;
+		its->domain->bus_token = DOMAIN_BUS_NEXUS;
 
 		its->msi_chip.domain = its_pci_msi_alloc_domain(node,
 								its->domain);
--
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