1 files changed, 18 insertions, 1 deletions

diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index 9b58a8f43771..94970880126f 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -146,7 +146,24 @@ struct acpi_table_rsdp {
         u8 reserved[3];         /* Reserved, must be zero */
 };
 
-#define ACPI_RSDP_REV0_SIZE     20      /* Size of original ACPI 1.0 RSDP */
+/* Standalone struct for the ACPI 1.0 RSDP */
+
+struct acpi_rsdp_common {
+        char signature[8];
+        u8 checksum;
+        char oem_id[ACPI_OEM_ID_SIZE];
+        u8 revision;
+        u32 rsdt_physical_address;
+};
+
+/* Standalone struct for the extended part of the RSDP (ACPI 2.0+) */
+
+struct acpi_rsdp_extension {
+        u32 length;
+        u64 xsdt_physical_address;
+        u8 extended_checksum;
+        u8 reserved[3];
+};
 
 /*******************************************************************************
  *