[deliverable/linux.git] / include / asm-s390 / setup.h

/*
 *  include/asm-s390/setup.h
 *
 *  S390 version
 *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
 */

#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H

#ifdef __KERNEL__

#include <asm/types.h>

#define PARMAREA		0x10400
#define COMMAND_LINE_SIZE 	896
#define RAMDISK_ORIGIN		0x800000
#define RAMDISK_SIZE		0x800000
#define MEMORY_CHUNKS		16	/* max 0x7fff */
#define IPL_PARMBLOCK_ORIGIN	0x2000

#ifndef __ASSEMBLY__

#ifndef __s390x__
#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
#define INITRD_START      (*(unsigned long *)  (0x1040C))
#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
#else /* __s390x__ */
#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
#define INITRD_START      (*(unsigned long *)  (0x10408))
#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
#endif /* __s390x__ */
#define COMMAND_LINE      ((char *)            (0x10480))

/*
 * Machine features detected in head.S
 */
extern unsigned long machine_flags;

#define MACHINE_IS_VM		(machine_flags & 1)
#define MACHINE_IS_P390		(machine_flags & 4)
#define MACHINE_HAS_MVPG	(machine_flags & 16)
#define MACHINE_HAS_DIAG44	(machine_flags & 32)
#define MACHINE_HAS_IDTE	(machine_flags & 128)

#ifndef __s390x__
#define MACHINE_HAS_IEEE	(machine_flags & 2)
#define MACHINE_HAS_CSP		(machine_flags & 8)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE	(1)
#define MACHINE_HAS_CSP		(1)
#endif /* __s390x__ */


#define MACHINE_HAS_SCLP	(!MACHINE_IS_P390)

/*
 * Console mode. Override with conmode=
 */
extern unsigned int console_mode;
extern unsigned int console_devno;
extern unsigned int console_irq;

#define CONSOLE_IS_UNDEFINED	(console_mode == 0)
#define CONSOLE_IS_SCLP		(console_mode == 1)
#define CONSOLE_IS_3215		(console_mode == 2)
#define CONSOLE_IS_3270		(console_mode == 3)
#define SET_CONSOLE_SCLP	do { console_mode = 1; } while (0)
#define SET_CONSOLE_3215	do { console_mode = 2; } while (0)
#define SET_CONSOLE_3270	do { console_mode = 3; } while (0)

struct ipl_list_header {
	u32 length;
	u8  reserved[3];
	u8  version;
} __attribute__((packed));

struct ipl_block_fcp {
	u32 length;
	u8  pbt;
	u8  reserved1[322-1];
	u16 devno;
	u8  reserved2[4];
	u64 wwpn;
	u64 lun;
	u32 bootprog;
	u8  reserved3[12];
	u64 br_lba;
	u32 scp_data_len;
	u8  reserved4[260];
	u8  scp_data[];
} __attribute__((packed));

struct ipl_parameter_block {
	union {
		u32 length;
		struct ipl_list_header header;
	} hdr;
	struct ipl_block_fcp fcp;
} __attribute__((packed));

#define IPL_MAX_SUPPORTED_VERSION (0)

#define IPL_TYPE_FCP (0)

/*
 * IPL validity flags and parameters as detected in head.S
 */
extern u32 ipl_parameter_flags;
extern u16 ipl_devno;

#define IPL_DEVNO_VALID		(ipl_parameter_flags & 1)
#define IPL_PARMBLOCK_VALID	(ipl_parameter_flags & 2)

#define IPL_PARMBLOCK_START	((struct ipl_parameter_block *) \
				 IPL_PARMBLOCK_ORIGIN)
#define IPL_PARMBLOCK_SIZE	(IPL_PARMBLOCK_START->hdr.length)

#else /* __ASSEMBLY__ */

#ifndef __s390x__
#define IPL_DEVICE        0x10404
#define INITRD_START      0x1040C
#define INITRD_SIZE       0x10414
#else /* __s390x__ */
#define IPL_DEVICE        0x10400
#define INITRD_START      0x10408
#define INITRD_SIZE       0x10410
#endif /* __s390x__ */
#define COMMAND_LINE      0x10480

#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_S390_SETUP_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/asm-s390/setup.h
	3	*
	4	* S390 version
	5	* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
	6	*/
	7
	8	#ifndef _ASM_S390_SETUP_H
	9	#define _ASM_S390_SETUP_H
	10
0defa3c1 HC	11	#ifdef __KERNEL__
0defa3c1 HC	12
1e8e3383 HC	13	#include <asm/types.h>
1e8e3383 HC	14
1da177e4 LT	15	#define PARMAREA 0x10400
	16	#define COMMAND_LINE_SIZE 896
	17	#define RAMDISK_ORIGIN 0x800000
	18	#define RAMDISK_SIZE 0x800000
	19	#define MEMORY_CHUNKS 16 /* max 0x7fff */
1e8e3383	20	#define IPL_PARMBLOCK_ORIGIN 0x2000
1da177e4 LT	21
	22	#ifndef __ASSEMBLY__
	23
	24	#ifndef __s390x__
	25	#define IPL_DEVICE ((unsigned long ) (0x10404))
	26	#define INITRD_START ((unsigned long ) (0x1040C))
	27	#define INITRD_SIZE ((unsigned long ) (0x10414))
	28	#else /* __s390x__ */
	29	#define IPL_DEVICE ((unsigned long ) (0x10400))
	30	#define INITRD_START ((unsigned long ) (0x10408))
	31	#define INITRD_SIZE ((unsigned long ) (0x10410))
	32	#endif /* __s390x__ */
	33	#define COMMAND_LINE ((char *) (0x10480))
	34
	35	/*
	36	* Machine features detected in head.S
	37	*/
	38	extern unsigned long machine_flags;
	39
	40	#define MACHINE_IS_VM (machine_flags & 1)
	41	#define MACHINE_IS_P390 (machine_flags & 4)
	42	#define MACHINE_HAS_MVPG (machine_flags & 16)
	43	#define MACHINE_HAS_DIAG44 (machine_flags & 32)
	44	#define MACHINE_HAS_IDTE (machine_flags & 128)
	45
	46	#ifndef __s390x__
	47	#define MACHINE_HAS_IEEE (machine_flags & 2)
	48	#define MACHINE_HAS_CSP (machine_flags & 8)
	49	#else /* __s390x__ */
	50	#define MACHINE_HAS_IEEE (1)
	51	#define MACHINE_HAS_CSP (1)
	52	#endif /* __s390x__ */
	53
	54
	55	#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
	56
	57	/*
	58	* Console mode. Override with conmode=
	59	*/
	60	extern unsigned int console_mode;
	61	extern unsigned int console_devno;
	62	extern unsigned int console_irq;
	63
	64	#define CONSOLE_IS_UNDEFINED (console_mode == 0)
	65	#define CONSOLE_IS_SCLP (console_mode == 1)
	66	#define CONSOLE_IS_3215 (console_mode == 2)
	67	#define CONSOLE_IS_3270 (console_mode == 3)
	68	#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
	69	#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
	70	#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
	71
1e8e3383 HC	72	struct ipl_list_header {
	73	u32 length;
	74	u8 reserved[3];
	75	u8 version;
	76	} __attribute__((packed));
	77
	78	struct ipl_block_fcp {
	79	u32 length;
	80	u8 pbt;
	81	u8 reserved1[322-1];
	82	u16 devno;
	83	u8 reserved2[4];
	84	u64 wwpn;
	85	u64 lun;
	86	u32 bootprog;
	87	u8 reserved3[12];
	88	u64 br_lba;
	89	u32 scp_data_len;
	90	u8 reserved4[260];
	91	u8 scp_data[];
	92	} __attribute__((packed));
	93
	94	struct ipl_parameter_block {
	95	union {
	96	u32 length;
	97	struct ipl_list_header header;
	98	} hdr;
	99	struct ipl_block_fcp fcp;
	100	} __attribute__((packed));
	101
	102	#define IPL_MAX_SUPPORTED_VERSION (0)
	103
	104	#define IPL_TYPE_FCP (0)
	105
	106	/*
	107	* IPL validity flags and parameters as detected in head.S
	108	*/
	109	extern u32 ipl_parameter_flags;
	110	extern u16 ipl_devno;
	111
	112	#define IPL_DEVNO_VALID (ipl_parameter_flags & 1)
	113	#define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2)
	114
	115	#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
	116	IPL_PARMBLOCK_ORIGIN)
	117	#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.length)
	118
0defa3c1	119	#else /* __ASSEMBLY__ */
1da177e4 LT	120
	121	#ifndef __s390x__
	122	#define IPL_DEVICE 0x10404
	123	#define INITRD_START 0x1040C
	124	#define INITRD_SIZE 0x10414
	125	#else /* __s390x__ */
	126	#define IPL_DEVICE 0x10400
	127	#define INITRD_START 0x10408
	128	#define INITRD_SIZE 0x10410
	129	#endif /* __s390x__ */
	130	#define COMMAND_LINE 0x10480
	131
0defa3c1 HC	132	#endif /* __ASSEMBLY__ */
	133	#endif /* __KERNEL__ */
	134	#endif /* _ASM_S390_SETUP_H */