Needed because arm uses GIC which is defined in ACPI 5.0 spec.
Signed-off-by: Al Stone <al.stone@xxxxxxxxxx>
Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
---
drivers/acpi/bus.c | 3 +++
drivers/acpi/plat/arm-core.c | 6 +++++-
include/linux/acpi.h | 1 +
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 0710004..246b40c 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -487,6 +487,9 @@ static int __init acpi_bus_init_irq(void)
case ACPI_IRQ_MODEL_IOSAPIC:
message = "IOSAPIC";
break;
+ case ACPI_IRQ_MODEL_GIC:
+ message = "GIC";
+ break;
case ACPI_IRQ_MODEL_PLATFORM:
message = "platform specific model";
break;
diff --git a/drivers/acpi/plat/arm-core.c b/drivers/acpi/plat/arm-core.c
index 7f1d709..2ff00b0 100644
--- a/drivers/acpi/plat/arm-core.c
+++ b/drivers/acpi/plat/arm-core.c
@@ -76,7 +76,11 @@ void arch_fix_phys_package_id(int num, u32 slot)
}
EXPORT_SYMBOL_GPL(arch_fix_phys_package_id);
-enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
+/*
+ * Since we're on ARM, the default interrupt routing model
+ * clearly has to be GIC.
+ */
+enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_GIC;
static unsigned int gsi_to_irq(unsigned int gsi)
{
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index d9099b1..da55da2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -63,6 +63,7 @@ enum acpi_irq_model_id {
ACPI_IRQ_MODEL_IOAPIC,
ACPI_IRQ_MODEL_IOSAPIC,
ACPI_IRQ_MODEL_PLATFORM,
+ ACPI_IRQ_MODEL_GIC,
ACPI_IRQ_MODEL_COUNT
};
--
1.7.9.5
--
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