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authorSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>2014-11-25 18:47:22 +0000
committerJason Cooper <jason@lakedaemon.net>2014-11-26 15:55:18 +0000
commit853a33ce6932601030f550653aea91a0e0a71511 (patch)
treef9e792722448699931ffe6627c676f34e0aed587 /drivers/irqchip/irq-gic.c
parentf4e27e30b3663a8652746d1c7d1649a5fa8c0e6c (diff)
downloadlinux-853a33ce6932601030f550653aea91a0e0a71511.tar.bz2
irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
ARM GICv2m specification extends GICv2 to support MSI(-X) with a new register frame. This allows a GICv2 based system to support MSI with minimal changes. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> [maz: converted the driver to use stacked irq domains, updated changelog] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1416941243-7181-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'drivers/irqchip/irq-gic.c')
-rw-r--r--drivers/irqchip/irq-gic.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index ab6069b09c94..5a71be79786d 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1066,6 +1066,10 @@ gic_of_init(struct device_node *node, struct device_node *parent)
irq = irq_of_parse_and_map(node, 0);
gic_cascade_irq(gic_cnt, irq);
}
+
+ if (IS_ENABLED(CONFIG_ARM_GIC_V2M))
+ gicv2m_of_init(node, gic_data[gic_cnt].domain);
+
gic_cnt++;
return 0;
}