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

/*
 * s390 (re)ipl support
 *
 * Copyright IBM Corp. 2007
 */

#ifndef _ASM_S390_IPL_H
#define _ASM_S390_IPL_H

#include <asm/types.h>

#define IPL_PARMBLOCK_ORIGIN	0x2000

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

#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 8)

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

#define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 8)

#define IPL_MAX_SUPPORTED_VERSION (0)

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

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;
	u8  reserved4[80];
} __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));

/*
 * IPL validity flags
 */
extern u32 ipl_flags;

extern u32 dump_prefix_page;
extern void do_reipl(void);
extern void ipl_save_parameters(void);

enum {
	IPL_DEVNO_VALID		= 1,
	IPL_PARMBLOCK_VALID	= 2,
	IPL_NSS_VALID		= 4,
};

/*
 * DIAG 308 support
 */
enum diag308_subcode  {
	DIAG308_REL_HSA	= 2,
	DIAG308_IPL	= 3,
	DIAG308_DUMP	= 4,
	DIAG308_SET	= 5,
	DIAG308_STORE	= 6,
};

enum diag308_ipl_type {
	DIAG308_IPL_TYPE_FCP	= 0,
	DIAG308_IPL_TYPE_CCW	= 2,
};

enum diag308_opt {
	DIAG308_IPL_OPT_IPL	= 0x10,
	DIAG308_IPL_OPT_DUMP	= 0x20,
};

enum diag308_rc {
	DIAG308_RC_OK	= 1,
};

extern int diag308(unsigned long subcode, void *addr);

#endif /* _ASM_S390_IPL_H */
Commit	Line	Data
46b05d26 MH	1	/*
	2	* s390 (re)ipl support
	3	*
	4	* Copyright IBM Corp. 2007
	5	*/
	6
	7	#ifndef _ASM_S390_IPL_H
	8	#define _ASM_S390_IPL_H
	9
	10	#include <asm/types.h>
	11
	12	#define IPL_PARMBLOCK_ORIGIN 0x2000
	13
	14	#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
	15	sizeof(struct ipl_block_fcp))
	16
fbb04f38 MH	17	#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 8)
fbb04f38 MH	18
46b05d26 MH	19	#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
	20	sizeof(struct ipl_block_ccw))
	21
fbb04f38 MH	22	#define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 8)
fbb04f38 MH	23
46b05d26 MH	24	#define IPL_MAX_SUPPORTED_VERSION (0)
	25
	26	#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
	27	IPL_PARMBLOCK_ORIGIN)
	28	#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
	29
	30	struct ipl_list_hdr {
	31	u32 len;
	32	u8 reserved1[3];
	33	u8 version;
	34	u32 blk0_len;
	35	u8 pbt;
	36	u8 flags;
	37	u16 reserved2;
	38	} __attribute__((packed));
	39
	40	struct ipl_block_fcp {
	41	u8 reserved1[313-1];
	42	u8 opt;
	43	u8 reserved2[3];
	44	u16 reserved3;
	45	u16 devno;
	46	u8 reserved4[4];
	47	u64 wwpn;
	48	u64 lun;
	49	u32 bootprog;
	50	u8 reserved5[12];
	51	u64 br_lba;
	52	u32 scp_data_len;
	53	u8 reserved6[260];
	54	u8 scp_data[];
	55	} __attribute__((packed));
	56
	57	struct ipl_block_ccw {
	58	u8 load_param[8];
	59	u8 reserved1[84];
	60	u8 reserved2[2];
	61	u16 devno;
	62	u8 vm_flags;
	63	u8 reserved3[3];
	64	u32 vm_parm_len;
fbb04f38	65	u8 reserved4[80];
46b05d26 MH	66	} __attribute__((packed));
	67
	68	struct ipl_parameter_block {
	69	struct ipl_list_hdr hdr;
	70	union {
	71	struct ipl_block_fcp fcp;
	72	struct ipl_block_ccw ccw;
	73	} ipl_info;
	74	} __attribute__((packed));
	75
	76	/*
6fc321fd	77	* IPL validity flags
46b05d26 MH	78	*/
46b05d26 MH	79	extern u32 ipl_flags;
46b05d26	80
c5dd8586	81	extern u32 dump_prefix_page;
46b05d26 MH	82	extern void do_reipl(void);
	83	extern void ipl_save_parameters(void);
	84
	85	enum {
	86	IPL_DEVNO_VALID = 1,
	87	IPL_PARMBLOCK_VALID = 2,
	88	IPL_NSS_VALID = 4,
	89	};
	90
	91	/*
	92	* DIAG 308 support
	93	*/
	94	enum diag308_subcode {
	95	DIAG308_REL_HSA = 2,
	96	DIAG308_IPL = 3,
	97	DIAG308_DUMP = 4,
	98	DIAG308_SET = 5,
	99	DIAG308_STORE = 6,
	100	};
	101
	102	enum diag308_ipl_type {
	103	DIAG308_IPL_TYPE_FCP = 0,
	104	DIAG308_IPL_TYPE_CCW = 2,
	105	};
	106
	107	enum diag308_opt {
	108	DIAG308_IPL_OPT_IPL = 0x10,
	109	DIAG308_IPL_OPT_DUMP = 0x20,
	110	};
	111
	112	enum diag308_rc {
	113	DIAG308_RC_OK = 1,
	114	};
	115
	116	extern int diag308(unsigned long subcode, void *addr);
	117
	118	#endif /* _ASM_S390_IPL_H */