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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-05-08 13:14:36 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-13 15:59:01 +0200 |
| commit | 505287525c24d5c78b662fd73721ad9900b91fcc (patch) | |
| tree | b12a24720a5963ba2b64c2bc169845f6a36c7fec /include/linux/irqchip | |
| parent | b2425b51bed7437c08c11ce71bb0f308f4516451 (diff) | |
| download | blackbird-op-linux-505287525c24d5c78b662fd73721ad9900b91fcc.tar.gz blackbird-op-linux-505287525c24d5c78b662fd73721ad9900b91fcc.zip | |
irqchip/gic-v3: Add support for Message Based Interrupts as an MSI controller
GICv3 offers the possibility to signal SPIs using a pair of doorbells
(SETPI, CLRSPI) under the name of Message Based Interrupts (MBI).
They can be used as either traditional (edge) MSIs, or the more exotic
level-triggered flavour.
Let's implement support for platform MSI, which is the original intent
for this feature.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20180508121438.11301-8-marc.zyngier@arm.com
Diffstat (limited to 'include/linux/irqchip')
| -rw-r--r-- | include/linux/irqchip/arm-gic-v3.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index f5af3b594e6e..cbb872c1b607 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -587,6 +587,7 @@ struct fwnode_handle; int its_cpu_init(void); int its_init(struct fwnode_handle *handle, struct rdists *rdists, struct irq_domain *domain); +int mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent); static inline bool gic_enable_sre(void) { |
