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-rw-r--r--arch/ia64/kernel/acpi.c8
-rw-r--r--arch/x86/kernel/acpi/boot.c8
-rw-r--r--include/linux/acpi.h1
3 files changed, 17 insertions, 0 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 4d1a7e9314c..c6c90f39f4d 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -785,6 +785,14 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
return 0;
}
+int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
+{
+ if (isa_irq >= 16)
+ return -1;
+ *gsi = isa_irq;
+ return 0;
+}
+
/*
* ACPI based hotplug CPU support
*/
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index cd40aba6aa9..da718d67259 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -458,6 +458,14 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
return 0;
}
+int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
+{
+ if (isa_irq >= 16)
+ return -1;
+ *gsi = isa_irq;
+ return 0;
+}
+
/*
* success: return IRQ number (>=0)
* failure: return < 0
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b926afe8c03..7a937dabcc4 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -116,6 +116,7 @@ extern unsigned long acpi_realmode_flags;
int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
+int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
#ifdef CONFIG_X86_IO_APIC
extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);