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-rw-r--r--include/acpi/actbl2.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 95f4d0ef481..0a600b8e53f 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -79,6 +79,15 @@
#define ACPI_SIG_WDAT "WDAT" /* Watchdog Action Table */
#define ACPI_SIG_WDRT "WDRT" /* Watchdog Resource Table */
+#ifdef ACPI_UNDEFINED_TABLES
+/*
+ * These tables have been seen in the field, but no definition has been found
+ */
+#define ACPI_SIG_ATKG "ATKG"
+#define ACPI_SIG_GSCI "GSCI" /* GMCH SCI table */
+#define ACPI_SIG_IEIT "IEIT"
+#endif
+
/*
* All tables must be byte-packed to match the ACPI specification, since
* the tables are provided by the system BIOS.