[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 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_IDTE	(machine_flags & 128)
#define MACHINE_HAS_DIAG9C	(machine_flags & 256)

#ifndef __s390x__
#define MACHINE_HAS_IEEE	(machine_flags & 2)
#define MACHINE_HAS_CSP		(machine_flags & 8)
#define MACHINE_HAS_DIAG44	(1)
#define MACHINE_HAS_MVCOS	(0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE	(1)
#define MACHINE_HAS_CSP		(1)
#define MACHINE_HAS_DIAG44	(machine_flags & 32)
#define MACHINE_HAS_MVCOS	(machine_flags & 512)
#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_hdr {
	u32 len;
	u8  reserved1[3];
	u8  version;
	u32 blk0_len;
	u8  pbt;
	u8  flags;
	u16 reserved2;
} __attribute__((packed));

struct ipl_block_fcp {
	u8  reserved1[313-1];
	u8  opt;
	u8  reserved2[3];
	u16 reserved3;
	u16 devno;
	u8  reserved4[4];
	u64 wwpn;
	u64 lun;
	u32 bootprog;
	u8  reserved5[12];
	u64 br_lba;
	u32 scp_data_len;
	u8  reserved6[260];
	u8  scp_data[];
} __attribute__((packed));

struct ipl_block_ccw {
	u8  load_param[8];
	u8  reserved1[84];
	u8  reserved2[2];
	u16 devno;
	u8  vm_flags;
	u8  reserved3[3];
	u32 vm_parm_len;
} __attribute__((packed));

struct ipl_parameter_block {
	struct ipl_list_hdr hdr;
	union {
		struct ipl_block_fcp fcp;
		struct ipl_block_ccw ccw;
	} ipl_info;
} __attribute__((packed));

#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
			      sizeof(struct ipl_block_fcp))

#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
			      sizeof(struct ipl_block_ccw))

#define IPL_MAX_SUPPORTED_VERSION (0)

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

void do_reipl(void);

enum {
	IPL_DEVNO_VALID	= 1,
	IPL_PARMBLOCK_VALID = 2,
};

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

#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
1da177e4 LT	16	#define COMMAND_LINE_SIZE 896
1da177e4	17	#define MEMORY_CHUNKS 16 /* max 0x7fff */
1e8e3383	18	#define IPL_PARMBLOCK_ORIGIN 0x2000
1da177e4 LT	19
	20	#ifndef __ASSEMBLY__
	21
	22	#ifndef __s390x__
	23	#define IPL_DEVICE ((unsigned long ) (0x10404))
	24	#define INITRD_START ((unsigned long ) (0x1040C))
	25	#define INITRD_SIZE ((unsigned long ) (0x10414))
	26	#else /* __s390x__ */
	27	#define IPL_DEVICE ((unsigned long ) (0x10400))
	28	#define INITRD_START ((unsigned long ) (0x10408))
	29	#define INITRD_SIZE ((unsigned long ) (0x10410))
	30	#endif /* __s390x__ */
	31	#define COMMAND_LINE ((char *) (0x10480))
	32
	33	/*
	34	* Machine features detected in head.S
	35	*/
	36	extern unsigned long machine_flags;
	37
	38	#define MACHINE_IS_VM (machine_flags & 1)
	39	#define MACHINE_IS_P390 (machine_flags & 4)
	40	#define MACHINE_HAS_MVPG (machine_flags & 16)
1da177e4	41	#define MACHINE_HAS_IDTE (machine_flags & 128)
3c1fcfe2	42	#define MACHINE_HAS_DIAG9C (machine_flags & 256)
1da177e4 LT	43
	44	#ifndef __s390x__
	45	#define MACHINE_HAS_IEEE (machine_flags & 2)
	46	#define MACHINE_HAS_CSP (machine_flags & 8)
abdba61a	47	#define MACHINE_HAS_DIAG44 (1)
6c2a9e6d	48	#define MACHINE_HAS_MVCOS (0)
1da177e4 LT	49	#else /* __s390x__ */
	50	#define MACHINE_HAS_IEEE (1)
	51	#define MACHINE_HAS_CSP (1)
abdba61a	52	#define MACHINE_HAS_DIAG44 (machine_flags & 32)
6c2a9e6d	53	#define MACHINE_HAS_MVCOS (machine_flags & 512)
1da177e4 LT	54	#endif /* __s390x__ */
	55
	56
	57	#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
	58
	59	/*
	60	* Console mode. Override with conmode=
	61	*/
	62	extern unsigned int console_mode;
	63	extern unsigned int console_devno;
	64	extern unsigned int console_irq;
	65
	66	#define CONSOLE_IS_UNDEFINED (console_mode == 0)
	67	#define CONSOLE_IS_SCLP (console_mode == 1)
	68	#define CONSOLE_IS_3215 (console_mode == 2)
	69	#define CONSOLE_IS_3270 (console_mode == 3)
	70	#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
	71	#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
	72	#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
	73
ff6b8ea6 MH	74
	75	struct ipl_list_hdr {
	76	u32 len;
	77	u8 reserved1[3];
1e8e3383	78	u8 version;
ff6b8ea6 MH	79	u32 blk0_len;
	80	u8 pbt;
	81	u8 flags;
	82	u16 reserved2;
1e8e3383 HC	83	} __attribute__((packed));
	84
	85	struct ipl_block_fcp {
ff6b8ea6 MH	86	u8 reserved1[313-1];
	87	u8 opt;
	88	u8 reserved2[3];
	89	u16 reserved3;
1e8e3383	90	u16 devno;
ff6b8ea6	91	u8 reserved4[4];
1e8e3383 HC	92	u64 wwpn;
	93	u64 lun;
	94	u32 bootprog;
ff6b8ea6	95	u8 reserved5[12];
1e8e3383 HC	96	u64 br_lba;
1e8e3383 HC	97	u32 scp_data_len;
ff6b8ea6	98	u8 reserved6[260];
1e8e3383 HC	99	u8 scp_data[];
	100	} __attribute__((packed));
	101
ff6b8ea6 MH	102	struct ipl_block_ccw {
	103	u8 load_param[8];
	104	u8 reserved1[84];
	105	u8 reserved2[2];
	106	u16 devno;
	107	u8 vm_flags;
	108	u8 reserved3[3];
	109	u32 vm_parm_len;
	110	} __attribute__((packed));
	111
1e8e3383	112	struct ipl_parameter_block {
ff6b8ea6	113	struct ipl_list_hdr hdr;
1e8e3383	114	union {
ff6b8ea6 MH	115	struct ipl_block_fcp fcp;
	116	struct ipl_block_ccw ccw;
	117	} ipl_info;
1e8e3383 HC	118	} __attribute__((packed));
1e8e3383 HC	119
ff6b8ea6 MH	120	#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
ff6b8ea6 MH	121	sizeof(struct ipl_block_fcp))
1e8e3383	122
ff6b8ea6 MH	123	#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
	124	sizeof(struct ipl_block_ccw))
	125
	126	#define IPL_MAX_SUPPORTED_VERSION (0)
1e8e3383 HC	127
	128	/*
	129	* IPL validity flags and parameters as detected in head.S
	130	*/
e87bfe51	131	extern u32 ipl_flags;
1e8e3383 HC	132	extern u16 ipl_devno;
1e8e3383 HC	133
ff6b8ea6 MH	134	void do_reipl(void);
ff6b8ea6 MH	135
e87bfe51 HC	136	enum {
	137	IPL_DEVNO_VALID = 1,
	138	IPL_PARMBLOCK_VALID = 2,
	139	};
1e8e3383 HC	140
	141	#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
	142	IPL_PARMBLOCK_ORIGIN)
ff6b8ea6	143	#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
1e8e3383	144
0defa3c1	145	#else /* __ASSEMBLY__ */
1da177e4 LT	146
	147	#ifndef __s390x__
	148	#define IPL_DEVICE 0x10404
	149	#define INITRD_START 0x1040C
	150	#define INITRD_SIZE 0x10414
	151	#else /* __s390x__ */
	152	#define IPL_DEVICE 0x10400
	153	#define INITRD_START 0x10408
	154	#define INITRD_SIZE 0x10410
	155	#endif /* __s390x__ */
	156	#define COMMAND_LINE 0x10480
	157
0defa3c1 HC	158	#endif /* __ASSEMBLY__ */
	159	#endif /* __KERNEL__ */
	160	#endif /* _ASM_S390_SETUP_H */