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irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch

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For LoongArch, ACPI_IRQ_MODEL_LPIC is introduced, and then the
callback acpi_get_gsi_domain_id and acpi_gsi_to_irq_fallback are
implemented.

The acpi_get_gsi_domain_id callback returns related fwnode handle
of irqdomain for different GSI range.

The acpi_gsi_to_irq_fallback will create new mapping for gsi when
the mapping of it is not found.

Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1658314292-35346-14-git-send-email-lvjianmin@loongson.cn
This commit is contained in:
Jianmin Lv
2022-07-20 18:51:32 +08:00
committed by Marc Zyngier
parent b2d3e3354e
commit e8bba72b39
3 changed files with 41 additions and 0 deletions
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include/linux/acpi.h
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@@ -105,6 +105,7 @@ enum acpi_irq_model_id {
ACPI_IRQ_MODEL_IOSAPIC,
ACPI_IRQ_MODEL_PLATFORM,
ACPI_IRQ_MODEL_GIC,
ACPI_IRQ_MODEL_LPIC,
ACPI_IRQ_MODEL_COUNT
};