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Marc Zyngier
505287525c
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 <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Rob Herring <[email protected]> Cc: Jason Cooper <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Srinivas Kandagatla <[email protected]> Cc: Thomas Petazzoni <[email protected]> Cc: Miquel Raynal <[email protected]> Link: https://lkml.kernel.org/r/[email protected]