genirq/msi: Provide new domain id based interfaces for freeing interrupts

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Provide two sorts of interfaces to handle the different use cases:

  - msi_domain_free_irqs_range():

	Handles a caller defined precise range

  - msi_domain_free_irqs_all():

	Frees all interrupts associated to a domain

The latter is useful for device teardown and to handle the legacy MSI support
which does not have any range information available.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124230314.337844751@linutronix.de

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This commit is contained in:

Thomas Gleixner 2022-11-25 00:24:33 +01:00

parent 40742716f2

commit 4cd5f4403f

2 changed files with 129 additions and 22 deletions

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9

include/linux/msi.h

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142

kernel/irq/msi.c

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