[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)

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