Commit-ID: 0380839dc90c53e24ddfa0f17ad909c2ddc345c2
Gitweb: http://git.kernel.org/tip/0380839dc90c53e24ddfa0f17ad909c2ddc345c2
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Tue, 28 Jul 2015 14:46:09 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 30 Jul 2015 00:14:37 +0200
PCI/MSI: Register irq domain with specific token
When creating a PCI/MSI domain, tag it with DOMAIN_BUS_PCI_MSI so
that it can be looked-up using irq_find_matching_host().
Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Reviewed-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Yijing Wang <wangyijing@xxxxxxxxxx>
Cc: Ma Jun <majun258@xxxxxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Duc Dang <dhdang@xxxxxxx>
Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1438091186-10244-3-git-send-email-marc.zyngier@xxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
drivers/pci/msi.c | 9 ++++++++-
include/linux/irqdomain.h | 1 +
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index cd4c78c..3aae7c9 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1273,12 +1273,19 @@ struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
struct msi_domain_info *info,
struct irq_domain *parent)
{
+ struct irq_domain *domain;
+
if (info->flags & MSI_FLAG_USE_DEF_DOM_OPS)
pci_msi_domain_update_dom_ops(info);
if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
pci_msi_domain_update_chip_ops(info);
- return msi_create_irq_domain(node, info, parent);
+ domain = msi_create_irq_domain(node, info, parent);
+ if (!domain)
+ return NULL;
+
+ domain->bus_token = DOMAIN_BUS_PCI_MSI;
+ return domain;
}
/**
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 91a83ad..25e9e66 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -54,6 +54,7 @@ struct irq_data;
*/
enum irq_domain_bus_token {
DOMAIN_BUS_ANY = 0,
+ DOMAIN_BUS_PCI_MSI,
};
/**
--
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