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

/*
 *  include/asm-s390/setup.h
 *
 *  S390 version
 *    Copyright IBM Corp. 1999,2006
 */

#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H

#define COMMAND_LINE_SIZE 	896

#ifdef __KERNEL__

#include <asm/types.h>

#define PARMAREA		0x10400
#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))

#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY  1

struct mem_chunk {
	unsigned long addr;
	unsigned long size;
	unsigned long type;
};

extern struct mem_chunk memory_chunk[];

#ifdef CONFIG_S390_SWITCH_AMODE
extern unsigned int switch_amode;
#else
#define switch_amode	(0)
#endif

#ifdef CONFIG_S390_EXEC_PROTECT
extern unsigned int s390_noexec;
#else
#define s390_noexec	(0)
#endif

/*
 * 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;

extern char vmhalt_cmd[];
extern char vmpoff_cmd[];

#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
36a2bd42	5	* Copyright IBM Corp. 1999,2006
1da177e4 LT	6	*/
	7
	8	#ifndef _ASM_S390_SETUP_H
	9	#define _ASM_S390_SETUP_H
	10
7d1362c0 AB	11	#define COMMAND_LINE_SIZE 896
7d1362c0 AB	12
0defa3c1 HC	13	#ifdef __KERNEL__
0defa3c1 HC	14
1e8e3383 HC	15	#include <asm/types.h>
1e8e3383 HC	16
1da177e4	17	#define PARMAREA 0x10400
1da177e4	18	#define MEMORY_CHUNKS 16 /* max 0x7fff */
1e8e3383	19	#define IPL_PARMBLOCK_ORIGIN 0x2000
1da177e4 LT	20
	21	#ifndef __ASSEMBLY__
	22
	23	#ifndef __s390x__
	24	#define IPL_DEVICE ((unsigned long ) (0x10404))
	25	#define INITRD_START ((unsigned long ) (0x1040C))
	26	#define INITRD_SIZE ((unsigned long ) (0x10414))
	27	#else /* __s390x__ */
	28	#define IPL_DEVICE ((unsigned long ) (0x10400))
	29	#define INITRD_START ((unsigned long ) (0x10408))
	30	#define INITRD_SIZE ((unsigned long ) (0x10410))
	31	#endif /* __s390x__ */
	32	#define COMMAND_LINE ((char *) (0x10480))
	33
36a2bd42 HC	34	#define CHUNK_READ_WRITE 0
	35	#define CHUNK_READ_ONLY 1
	36
	37	struct mem_chunk {
	38	unsigned long addr;
	39	unsigned long size;
	40	unsigned long type;
	41	};
	42
	43	extern struct mem_chunk memory_chunk[];
	44
c1821c2e GS	45	#ifdef CONFIG_S390_SWITCH_AMODE
	46	extern unsigned int switch_amode;
	47	#else
	48	#define switch_amode (0)
	49	#endif
	50
	51	#ifdef CONFIG_S390_EXEC_PROTECT
	52	extern unsigned int s390_noexec;
	53	#else
	54	#define s390_noexec (0)
	55	#endif
	56
1da177e4 LT	57	/*
	58	* Machine features detected in head.S
	59	*/
	60	extern unsigned long machine_flags;
	61
	62	#define MACHINE_IS_VM (machine_flags & 1)
	63	#define MACHINE_IS_P390 (machine_flags & 4)
	64	#define MACHINE_HAS_MVPG (machine_flags & 16)
1da177e4	65	#define MACHINE_HAS_IDTE (machine_flags & 128)
3c1fcfe2	66	#define MACHINE_HAS_DIAG9C (machine_flags & 256)
1da177e4 LT	67
	68	#ifndef __s390x__
	69	#define MACHINE_HAS_IEEE (machine_flags & 2)
	70	#define MACHINE_HAS_CSP (machine_flags & 8)
abdba61a	71	#define MACHINE_HAS_DIAG44 (1)
6c2a9e6d	72	#define MACHINE_HAS_MVCOS (0)
1da177e4 LT	73	#else /* __s390x__ */
	74	#define MACHINE_HAS_IEEE (1)
	75	#define MACHINE_HAS_CSP (1)
abdba61a	76	#define MACHINE_HAS_DIAG44 (machine_flags & 32)
6c2a9e6d	77	#define MACHINE_HAS_MVCOS (machine_flags & 512)
1da177e4 LT	78	#endif /* __s390x__ */
1da177e4 LT	79
1da177e4 LT	80	#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
	81
	82	/*
	83	* Console mode. Override with conmode=
	84	*/
	85	extern unsigned int console_mode;
	86	extern unsigned int console_devno;
	87	extern unsigned int console_irq;
	88
2b67fc46 HC	89	extern char vmhalt_cmd[];
	90	extern char vmpoff_cmd[];
	91
1da177e4 LT	92	#define CONSOLE_IS_UNDEFINED (console_mode == 0)
	93	#define CONSOLE_IS_SCLP (console_mode == 1)
	94	#define CONSOLE_IS_3215 (console_mode == 2)
	95	#define CONSOLE_IS_3270 (console_mode == 3)
	96	#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
	97	#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
	98	#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
	99
ff6b8ea6 MH	100	struct ipl_list_hdr {
	101	u32 len;
	102	u8 reserved1[3];
1e8e3383	103	u8 version;
ff6b8ea6 MH	104	u32 blk0_len;
	105	u8 pbt;
	106	u8 flags;
	107	u16 reserved2;
1e8e3383 HC	108	} __attribute__((packed));
	109
	110	struct ipl_block_fcp {
ff6b8ea6 MH	111	u8 reserved1[313-1];
	112	u8 opt;
	113	u8 reserved2[3];
	114	u16 reserved3;
1e8e3383	115	u16 devno;
ff6b8ea6	116	u8 reserved4[4];
1e8e3383 HC	117	u64 wwpn;
	118	u64 lun;
	119	u32 bootprog;
ff6b8ea6	120	u8 reserved5[12];
1e8e3383 HC	121	u64 br_lba;
1e8e3383 HC	122	u32 scp_data_len;
ff6b8ea6	123	u8 reserved6[260];
1e8e3383 HC	124	u8 scp_data[];
	125	} __attribute__((packed));
	126
ff6b8ea6 MH	127	struct ipl_block_ccw {
	128	u8 load_param[8];
	129	u8 reserved1[84];
	130	u8 reserved2[2];
	131	u16 devno;
	132	u8 vm_flags;
	133	u8 reserved3[3];
	134	u32 vm_parm_len;
	135	} __attribute__((packed));
	136
1e8e3383	137	struct ipl_parameter_block {
ff6b8ea6	138	struct ipl_list_hdr hdr;
1e8e3383	139	union {
ff6b8ea6 MH	140	struct ipl_block_fcp fcp;
	141	struct ipl_block_ccw ccw;
	142	} ipl_info;
1e8e3383 HC	143	} __attribute__((packed));
1e8e3383 HC	144
ff6b8ea6 MH	145	#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
ff6b8ea6 MH	146	sizeof(struct ipl_block_fcp))
1e8e3383	147
ff6b8ea6 MH	148	#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
	149	sizeof(struct ipl_block_ccw))
	150
	151	#define IPL_MAX_SUPPORTED_VERSION (0)
1e8e3383 HC	152
	153	/*
	154	* IPL validity flags and parameters as detected in head.S
	155	*/
e87bfe51	156	extern u32 ipl_flags;
1e8e3383 HC	157	extern u16 ipl_devno;
1e8e3383 HC	158
ff6b8ea6 MH	159	void do_reipl(void);
ff6b8ea6 MH	160
e87bfe51 HC	161	enum {
	162	IPL_DEVNO_VALID = 1,
	163	IPL_PARMBLOCK_VALID = 2,
	164	};
1e8e3383 HC	165
	166	#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
	167	IPL_PARMBLOCK_ORIGIN)
ff6b8ea6	168	#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
1e8e3383	169
0defa3c1	170	#else /* __ASSEMBLY__ */
1da177e4 LT	171
	172	#ifndef __s390x__
	173	#define IPL_DEVICE 0x10404
	174	#define INITRD_START 0x1040C
	175	#define INITRD_SIZE 0x10414
	176	#else /* __s390x__ */
	177	#define IPL_DEVICE 0x10400
	178	#define INITRD_START 0x10408
	179	#define INITRD_SIZE 0x10410
	180	#endif /* __s390x__ */
	181	#define COMMAND_LINE 0x10480
	182
0defa3c1 HC	183	#endif /* __ASSEMBLY__ */
	184	#endif /* __KERNEL__ */
	185	#endif /* _ASM_S390_SETUP_H */