[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>
#include <asm/cio.h>
#include <asm/setup.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 unsigned int zfcpdump_prefix_array[];

extern void do_reipl(void);
extern void do_halt(void);
extern void do_poff(void);
extern void ipl_save_parameters(void);

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

enum ipl_type {
	IPL_TYPE_UNKNOWN	= 1,
	IPL_TYPE_CCW		= 2,
	IPL_TYPE_FCP		= 4,
	IPL_TYPE_FCP_DUMP	= 8,
	IPL_TYPE_NSS		= 16,
};

struct ipl_info
{
	enum ipl_type type;
	union {
		struct {
			struct ccw_dev_id dev_id;
		} ccw;
		struct {
			struct ccw_dev_id dev_id;
			u64 wwpn;
			u64 lun;
		} fcp;
		struct {
			char name[NSS_NAME_SIZE + 1];
		} nss;
	} data;
};

extern struct ipl_info ipl_info;
extern void setup_ipl(void);

/*
 * 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>
411ed322 MH	11	#include <asm/cio.h>
411ed322 MH	12	#include <asm/setup.h>
46b05d26 MH	13
	14	#define IPL_PARMBLOCK_ORIGIN 0x2000
	15
	16	#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
	17	sizeof(struct ipl_block_fcp))
	18
fbb04f38 MH	19	#define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 8)
fbb04f38 MH	20
46b05d26 MH	21	#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
	22	sizeof(struct ipl_block_ccw))
	23
fbb04f38 MH	24	#define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 8)
fbb04f38 MH	25
46b05d26 MH	26	#define IPL_MAX_SUPPORTED_VERSION (0)
	27
	28	#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
	29	IPL_PARMBLOCK_ORIGIN)
	30	#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
	31
	32	struct ipl_list_hdr {
	33	u32 len;
	34	u8 reserved1[3];
	35	u8 version;
	36	u32 blk0_len;
	37	u8 pbt;
	38	u8 flags;
	39	u16 reserved2;
	40	} __attribute__((packed));
	41
	42	struct ipl_block_fcp {
	43	u8 reserved1[313-1];
	44	u8 opt;
	45	u8 reserved2[3];
	46	u16 reserved3;
	47	u16 devno;
	48	u8 reserved4[4];
	49	u64 wwpn;
	50	u64 lun;
	51	u32 bootprog;
	52	u8 reserved5[12];
	53	u64 br_lba;
	54	u32 scp_data_len;
	55	u8 reserved6[260];
	56	u8 scp_data[];
	57	} __attribute__((packed));
	58
	59	struct ipl_block_ccw {
	60	u8 load_param[8];
	61	u8 reserved1[84];
	62	u8 reserved2[2];
	63	u16 devno;
	64	u8 vm_flags;
	65	u8 reserved3[3];
	66	u32 vm_parm_len;
fbb04f38	67	u8 reserved4[80];
46b05d26 MH	68	} __attribute__((packed));
	69
	70	struct ipl_parameter_block {
	71	struct ipl_list_hdr hdr;
	72	union {
	73	struct ipl_block_fcp fcp;
	74	struct ipl_block_ccw ccw;
	75	} ipl_info;
	76	} __attribute__((packed));
	77
	78	/*
6fc321fd	79	* IPL validity flags
46b05d26 MH	80	*/
46b05d26 MH	81	extern u32 ipl_flags;
c5dd8586	82	extern u32 dump_prefix_page;
763968e2	83	extern unsigned int zfcpdump_prefix_array[];
411ed322	84
46b05d26	85	extern void do_reipl(void);
99ca4e58 MH	86	extern void do_halt(void);
99ca4e58 MH	87	extern void do_poff(void);
46b05d26 MH	88	extern void ipl_save_parameters(void);
	89
	90	enum {
	91	IPL_DEVNO_VALID = 1,
	92	IPL_PARMBLOCK_VALID = 2,
	93	IPL_NSS_VALID = 4,
	94	};
	95
411ed322 MH	96	enum ipl_type {
	97	IPL_TYPE_UNKNOWN = 1,
	98	IPL_TYPE_CCW = 2,
	99	IPL_TYPE_FCP = 4,
	100	IPL_TYPE_FCP_DUMP = 8,
	101	IPL_TYPE_NSS = 16,
	102	};
	103
	104	struct ipl_info
	105	{
	106	enum ipl_type type;
	107	union {
	108	struct {
	109	struct ccw_dev_id dev_id;
	110	} ccw;
	111	struct {
	112	struct ccw_dev_id dev_id;
	113	u64 wwpn;
	114	u64 lun;
	115	} fcp;
	116	struct {
	117	char name[NSS_NAME_SIZE + 1];
	118	} nss;
	119	} data;
	120	};
	121
	122	extern struct ipl_info ipl_info;
99ca4e58	123	extern void setup_ipl(void);
411ed322	124
46b05d26 MH	125	/*
	126	* DIAG 308 support
	127	*/
	128	enum diag308_subcode {
	129	DIAG308_REL_HSA = 2,
	130	DIAG308_IPL = 3,
	131	DIAG308_DUMP = 4,
	132	DIAG308_SET = 5,
	133	DIAG308_STORE = 6,
	134	};
	135
	136	enum diag308_ipl_type {
	137	DIAG308_IPL_TYPE_FCP = 0,
	138	DIAG308_IPL_TYPE_CCW = 2,
	139	};
	140
	141	enum diag308_opt {
	142	DIAG308_IPL_OPT_IPL = 0x10,
	143	DIAG308_IPL_OPT_DUMP = 0x20,
	144	};
	145
	146	enum diag308_rc {
	147	DIAG308_RC_OK = 1,
	148	};
	149
	150	extern int diag308(unsigned long subcode, void *addr);
	151
	152	#endif /* _ASM_S390_IPL_H */