Make asm-x86/bootparam.h includable from userspace.

To actually write a bootloader (or, say, the lguest launcher)
currently requires duplication of these structures.  Making them
includable from userspace is much nicer.

We merge the common userspace-required definitions of e820_32/64.h
into e820.h for export.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

include/linux/edd.h

@@ -67,113 +67,113 @@
 #define EDD_INFO_USE_INT13_FN50                (1 << 7)
 
 struct edd_device_params {
-	u16 length;
-	u16 info_flags;
-	u32 num_default_cylinders;
-	u32 num_default_heads;
-	u32 sectors_per_track;
-	u64 number_of_sectors;
-	u16 bytes_per_sector;
-	u32 dpte_ptr;		/* 0xFFFFFFFF for our purposes */
-	u16 key;		/* = 0xBEDD */
-	u8 device_path_info_length;	/* = 44 */
-	u8 reserved2;
-	u16 reserved3;
-	u8 host_bus_type[4];
-	u8 interface_type[8];
+	__u16 length;
+	__u16 info_flags;
+	__u32 num_default_cylinders;
+	__u32 num_default_heads;
+	__u32 sectors_per_track;
+	__u64 number_of_sectors;
+	__u16 bytes_per_sector;
+	__u32 dpte_ptr;		/* 0xFFFFFFFF for our purposes */
+	__u16 key;		/* = 0xBEDD */
+	__u8 device_path_info_length;	/* = 44 */
+	__u8 reserved2;
+	__u16 reserved3;
+	__u8 host_bus_type[4];
+	__u8 interface_type[8];
 	union {
 		struct {
-			u16 base_address;
-			u16 reserved1;
-			u32 reserved2;
+			__u16 base_address;
+			__u16 reserved1;
+			__u32 reserved2;
 		} __attribute__ ((packed)) isa;
 		struct {
-			u8 bus;
-			u8 slot;
-			u8 function;
-			u8 channel;
-			u32 reserved;
+			__u8 bus;
+			__u8 slot;
+			__u8 function;
+			__u8 channel;
+			__u32 reserved;
 		} __attribute__ ((packed)) pci;
 		/* pcix is same as pci */
 		struct {
-			u64 reserved;
+			__u64 reserved;
 		} __attribute__ ((packed)) ibnd;
 		struct {
-			u64 reserved;
+			__u64 reserved;
 		} __attribute__ ((packed)) xprs;
 		struct {
-			u64 reserved;
+			__u64 reserved;
 		} __attribute__ ((packed)) htpt;
 		struct {
-			u64 reserved;
+			__u64 reserved;
 		} __attribute__ ((packed)) unknown;
 	} interface_path;
 	union {
 		struct {
-			u8 device;
-			u8 reserved1;
-			u16 reserved2;
-			u32 reserved3;
-			u64 reserved4;
+			__u8 device;
+			__u8 reserved1;
+			__u16 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
 		} __attribute__ ((packed)) ata;
 		struct {
-			u8 device;
-			u8 lun;
-			u8 reserved1;
-			u8 reserved2;
-			u32 reserved3;
-			u64 reserved4;
+			__u8 device;
+			__u8 lun;
+			__u8 reserved1;
+			__u8 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
 		} __attribute__ ((packed)) atapi;
 		struct {
-			u16 id;
-			u64 lun;
-			u16 reserved1;
-			u32 reserved2;
+			__u16 id;
+			__u64 lun;
+			__u16 reserved1;
+			__u32 reserved2;
 		} __attribute__ ((packed)) scsi;
 		struct {
-			u64 serial_number;
-			u64 reserved;
+			__u64 serial_number;
+			__u64 reserved;
 		} __attribute__ ((packed)) usb;
 		struct {
-			u64 eui;
-			u64 reserved;
+			__u64 eui;
+			__u64 reserved;
 		} __attribute__ ((packed)) i1394;
 		struct {
-			u64 wwid;
-			u64 lun;
+			__u64 wwid;
+			__u64 lun;
 		} __attribute__ ((packed)) fibre;
 		struct {
-			u64 identity_tag;
-			u64 reserved;
+			__u64 identity_tag;
+			__u64 reserved;
 		} __attribute__ ((packed)) i2o;
 		struct {
-			u32 array_number;
-			u32 reserved1;
-			u64 reserved2;
+			__u32 array_number;
+			__u32 reserved1;
+			__u64 reserved2;
 		} __attribute__ ((packed)) raid;
 		struct {
-			u8 device;
-			u8 reserved1;
-			u16 reserved2;
-			u32 reserved3;
-			u64 reserved4;
+			__u8 device;
+			__u8 reserved1;
+			__u16 reserved2;
+			__u32 reserved3;
+			__u64 reserved4;
 		} __attribute__ ((packed)) sata;
 		struct {
-			u64 reserved1;
-			u64 reserved2;
+			__u64 reserved1;
+			__u64 reserved2;
 		} __attribute__ ((packed)) unknown;
 	} device_path;
-	u8 reserved4;
-	u8 checksum;
+	__u8 reserved4;
+	__u8 checksum;
 } __attribute__ ((packed));
 
 struct edd_info {
-	u8 device;
-	u8 version;
-	u16 interface_support;
-	u16 legacy_max_cylinder;
-	u8 legacy_max_head;
-	u8 legacy_sectors_per_track;
+	__u8 device;
+	__u8 version;
+	__u16 interface_support;
+	__u16 legacy_max_cylinder;
+	__u8 legacy_max_head;
+	__u8 legacy_sectors_per_track;
 	struct edd_device_params params;
 } __attribute__ ((packed));
 
@@ -184,8 +184,9 @@ struct edd {
 	unsigned char edd_info_nr;
 };
 
+#ifdef __KERNEL__
 extern struct edd edd;
-
+#endif /* __KERNEL__ */
 #endif				/*!__ASSEMBLY__ */
 
 #endif				/* _LINUX_EDD_H */