ACPICA: ACPI 6.4: MADT: add Multiprocessor Wakeup Structure

ACPICA commit b9eb6f3a19b816824d6f47a6bc86fd8ce690e04b

Link: https://github.com/acpica/acpica/commit/b9eb6f3aSigned-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/acpi/actbl2.h

@@ -531,7 +531,8 @@ enum acpi_madt_type {
 	ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
 	ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
 	ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
-	ACPI_MADT_TYPE_RESERVED = 16	/* 16 and greater are reserved */
+	ACPI_MADT_TYPE_MULTIPROC_WAKEUP = 16,
+	ACPI_MADT_TYPE_RESERVED = 17	/* 17 and greater are reserved */
 };
 
 /*
@@ -738,6 +739,15 @@ struct acpi_madt_generic_translator {
 	u32 reserved2;
 };
 
+/* 16: Multiprocessor wakeup (ACPI 6.4) */
+
+struct acpi_madt_multiproc_wakeup {
+	struct acpi_subtable_header header;
+	u16 mailbox_version;
+	u32 reserved;		/* reserved - must be zero */
+	u64 base_address;
+};
+
 /*
  * Common flags fields for MADT subtables
  */