[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_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
			      sizeof(struct ipl_block_ccw))

#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;
} __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 and parameters as detected in head.S
 */
extern u32 ipl_flags;
extern u16 ipl_devno;

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