irqchip/gic-v3: Add __gic_get_ppi_index() to find the PPI number from hwirq

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gic_get_ppi_index() is a useful concept for ppi partitions, as the GIC
has two PPI ranges but needs mapping to a single range when used as an
index in the gic_data.ppi_descs[] array.

Add a double-underscore version which takes just the intid. This will
be used in the partition domain select and translate helpers to enable
partition support for the EPPI range.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210729172748.28841-2-james.morse@arm.com

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James Morse 2021-07-29 17:27:47 +00:00 • committed by Marc Zyngier

parent ff1176468d

commit bfa80ee9ce

1 changed files with 9 additions and 4 deletions

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drivers/irqchip/irq-gic-v3.c

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