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irqchip/gic-v2m: acpi: Introducing GICv2m ACPI support

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This patch introduces gicv2m_acpi_init(), which uses information
in MADT GIC MSI frames structure to initialize GICv2m driver.
It also exposes gicv2m_init() function, which simplifies callers
to a single GICv2m init function.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Duc Dang <dhdang@apm.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Suravee Suthikulpanit
2015-12-10 08:55:30 -08:00
committed by Marc Zyngier
parent 4266ab1a8f
commit 0644b3daca
3 changed files with 116 additions and 3 deletions
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6
drivers/irqchip/irq-gic.c
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@@ -1234,7 +1234,7 @@ gic_of_init(struct device_node *node, struct device_node *parent)
}
if (IS_ENABLED(CONFIG_ARM_GIC_V2M))
gicv2m_of_init(node, gic_data[gic_cnt].domain);
gicv2m_init(&node->fwnode, gic_data[gic_cnt].domain);
gic_cnt++;
return 0;
@@ -1359,6 +1359,10 @@ static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
__gic_init_bases(0, -1, dist_base, cpu_base, 0, domain_handle);
acpi_set_irq_model(ACPI_IRQ_MODEL_GIC, domain_handle);
if (IS_ENABLED(CONFIG_ARM_GIC_V2M))
gicv2m_init(NULL, gic_data[0].domain);
return 0;
}
IRQCHIP_ACPI_DECLARE(gic_v2, ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR,