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authorSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>2014-11-25 21:47:22 +0300
committerJason Cooper <jason@lakedaemon.net>2014-11-26 18:55:18 +0300
commit853a33ce6932601030f550653aea91a0e0a71511 (patch)
treef9e792722448699931ffe6627c676f34e0aed587 /include/linux/irqchip
parentf4e27e30b3663a8652746d1c7d1649a5fa8c0e6c (diff)
downloadlinux-853a33ce6932601030f550653aea91a0e0a71511.tar.xz
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 'include/linux/irqchip')
-rw-r--r--include/linux/irqchip/arm-gic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 13eed92c7d24..60b09ed58cae 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -106,6 +106,8 @@ static inline void gic_init(unsigned int nr, int start,
gic_init_bases(nr, start, dist, cpu, 0, NULL);
}
+int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
+
void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
int gic_get_cpu_id(unsigned int cpu);
void gic_migrate_target(unsigned int new_cpu_id);