irqchip/gic-v5: Enable GICv5 IWB ACPI probe ordering detection

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Register an ACPI hook in the ACPI interrupt management code for GICv5 to
retrieve the ACPI interrupt controller handle (if any) of the controller
handling a specific GSI, by updating the acpi_set_irq_model() call with
the gic_v5_get_gsi_handle() function pointer parameter.

gicv5_get_gsi_handle() allows ACPI core to detect the ACPI handle
of the controller that manages a specific GSI interrupt.

Update the IWB driver to clear device dependencies in ACPI core once the
IWB driver has probed.

Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-7-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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This commit is contained in:

Lorenzo Pieralisi 2026-07-09 10:40:17 +02:00 • committed by Rafael J. Wysocki

parent 5a64611747

commit d2aa7b179a

2 changed files with 12 additions and 1 deletions

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2

drivers/irqchip/irq-gic-v5-iwb.c

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11

drivers/irqchip/irq-gic-v5.c

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