From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 28 Jul 2015 13:46:17 +0000 (+0100)
Subject: genirq: Add DOMAIN_BUS_NEXUS irqdomain property
X-Git-Tag: firefly_0821_release~176^2~1122^2~38
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a5716070d88cba1a0a8a18fea809ea6e3374e276;p=firefly-linux-kernel-4.4.55.git

genirq: Add DOMAIN_BUS_NEXUS irqdomain property

Some IRQ domains are not designed to directly provide interrupts
to devices, but strictly to be used by other domains. An example
of this is the GICv3 ITS, which is completely bus agnostic, and
on which it is possible to implement a PCI/MSI domain.

Just introduce the irq_domain_bus_token property for now.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Ma Jun <majun258@huawei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Duc Dang <dhdang@apm.com>
Cc: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1438091186-10244-11-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index b4a74f73a0c3..d3ca79236fb0 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -56,6 +56,7 @@ enum irq_domain_bus_token {
 	DOMAIN_BUS_ANY		= 0,
 	DOMAIN_BUS_PCI_MSI,
 	DOMAIN_BUS_PLATFORM_MSI,
+	DOMAIN_BUS_NEXUS,
 };
 
 /**