genirq/msi: Provide domain flags to allocate/free MSI descriptors automatically

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Provide domain info flags which tell the core to allocate simple
descriptors or to free descriptors when the interrupts are freed and
implement the required functionality.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211206210747.928198636@linutronix.de

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Thomas Gleixner 2021-12-06 23:51:12 +01:00

parent 6029052536

commit 645474e2ce

2 changed files with 65 additions and 0 deletions

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17

include/linux/msi.h

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48

kernel/irq/msi.c

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