PCI: apple: Implement MSI support

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Probe for the 'msi-ranges' property, and implement the MSI support in the
form of the usual two-level hierarchy.

Note that contrary to the wired interrupts, MSIs are shared among all the
ports.

Link: https://lore.kernel.org/r/20210929163847.2807812-8-maz@kernel.org
Tested-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Marc Zyngier 2021-09-29 17:38:40 +01:00 • committed by Bjorn Helgaas

parent d8fcbe52d7

commit 476c41ed45

1 changed files with 168 additions and 1 deletions

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drivers/pci/controller/pcie-apple.c

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