diff options
| -rw-r--r-- | src/soc/intel/apollolake/acpi/platform.asl | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/acpi/platform.asl b/src/soc/intel/apollolake/acpi/platform.asl index f3202a0c48..ec1844a512 100644 --- a/src/soc/intel/apollolake/acpi/platform.asl +++ b/src/soc/intel/apollolake/acpi/platform.asl @@ -18,3 +18,19 @@ /* Enable ACPI _SWS methods */ #include <soc/intel/common/acpi/acpi_wake_source.asl> #include <soc/intel/common/acpi/platform.asl> + +Name(\PICM, Zero) // IOAPIC/8259 + +/* + * The _PIC method is called by the OS to choose between interrupt + * routing via the i8259 interrupt controller or the APIC. + * + * _PIC is called with a parameter of 0 for i8259 configuration and + * with a parameter of 1 for Local Apic/IOAPIC configuration. + */ + +Method (_PIC, 1) +{ + /* Remember the OS' IRQ routing choice. */ + Store (Arg0, PICM) +} |