diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
index da9477d78214e9d0e683501bd0f4947fc66b580d..1c342682553544c59f11c5676f58e4a4f56bd8ef 100644
--- a/arch/x86/include/asm/e820/types.h
+++ b/arch/x86/include/asm/e820/types.h
@@ -1,6 +1,37 @@
 #ifndef _ASM_E820_TYPES_H
 #define _ASM_E820_TYPES_H
 
+enum e820_type {
+	E820_RAM		= 1,
+	E820_RESERVED		= 2,
+	E820_ACPI		= 3,
+	E820_NVS		= 4,
+	E820_UNUSABLE		= 5,
+	E820_PMEM		= 7,
+
+	/*
+	 * This is a non-standardized way to represent ADR or
+	 * NVDIMM regions that persist over a reboot.
+	 *
+	 * The kernel will ignore their special capabilities
+	 * unless the CONFIG_X86_PMEM_LEGACY=y option is set.
+	 *
+	 * ( Note that older platforms also used 6 for the same
+	 *   type of memory, but newer versions switched to 12 as
+	 *   6 was assigned differently. Some time they will learn... )
+	 */
+	E820_PRAM		= 12,
+
+	/*
+	 * Reserved RAM used by the kernel itself if
+	 * CONFIG_INTEL_TXT=y is enabled, memory of this type
+	 * will be included in the S3 integrity calculation
+	 * and so should not include any memory that the BIOS
+	 * might alter over the S3 transition:
+	 */
+	E820_RESERVED_KERN	= 128,
+};
+
 #include <uapi/asm/e820/types.h>
 
 /*
@@ -39,32 +70,6 @@
 /* Number of entries in E820MAP: */
 #define E820NR			0x1e8
 
-#define E820_RAM		1
-#define E820_RESERVED		2
-#define E820_ACPI		3
-#define E820_NVS		4
-#define E820_UNUSABLE		5
-#define E820_PMEM		7
-
-/*
- * This is a non-standardized way to represent ADR or NVDIMM regions that
- * persist over a reboot.  The kernel will ignore their special capabilities
- * unless the CONFIG_X86_PMEM_LEGACY option is set.
- *
- * ( Note that older platforms also used 6 for the same type of memory,
- *   but newer versions switched to 12 as 6 was assigned differently.  Some
- *   time they will learn... )
- */
-#define E820_PRAM		12
-
-/*
- * reserved RAM used by kernel itself
- * if CONFIG_INTEL_TXT is enabled, memory of this type will be
- * included in the S3 integrity calculation and so should not include
- * any memory that BIOS might alter over the S3 transition
- */
-#define E820_RESERVED_KERN	128
-
 /*
  * The whole array of E820 entries:
  */