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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
Heiko Carstens36a2bd42006-12-04 15:40:38 +01005 * Copyright IBM Corp. 1999,2006
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
Adrian Bunk7d1362c2006-12-06 20:40:38 -080011#define COMMAND_LINE_SIZE 896
12
Heiko Carstens0defa3c2006-02-11 17:56:03 -080013#ifdef __KERNEL__
14
Heiko Carstens1e8e3382005-10-30 15:00:11 -080015#include <asm/types.h>
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#define PARMAREA 0x10400
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#define MEMORY_CHUNKS 16 /* max 0x7fff */
Heiko Carstens1e8e3382005-10-30 15:00:11 -080019#define IPL_PARMBLOCK_ORIGIN 0x2000
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
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
Heiko Carstens36a2bd42006-12-04 15:40:38 +010034#define CHUNK_READ_WRITE 0
35#define CHUNK_READ_ONLY 1
36
37struct mem_chunk {
38 unsigned long addr;
39 unsigned long size;
40 unsigned long type;
41};
42
43extern struct mem_chunk memory_chunk[];
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045/*
46 * Machine features detected in head.S
47 */
48extern unsigned long machine_flags;
49
50#define MACHINE_IS_VM (machine_flags & 1)
51#define MACHINE_IS_P390 (machine_flags & 4)
52#define MACHINE_HAS_MVPG (machine_flags & 16)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#define MACHINE_HAS_IDTE (machine_flags & 128)
Martin Schwidefsky3c1fcfe2006-09-30 23:27:45 -070054#define MACHINE_HAS_DIAG9C (machine_flags & 256)
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56#ifndef __s390x__
57#define MACHINE_HAS_IEEE (machine_flags & 2)
58#define MACHINE_HAS_CSP (machine_flags & 8)
Heiko Carstensabdba612006-07-12 16:39:58 +020059#define MACHINE_HAS_DIAG44 (1)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020060#define MACHINE_HAS_MVCOS (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#else /* __s390x__ */
62#define MACHINE_HAS_IEEE (1)
63#define MACHINE_HAS_CSP (1)
Heiko Carstensabdba612006-07-12 16:39:58 +020064#define MACHINE_HAS_DIAG44 (machine_flags & 32)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020065#define MACHINE_HAS_MVCOS (machine_flags & 512)
Linus Torvalds1da177e2005-04-16 15:20:36 -070066#endif /* __s390x__ */
67
Linus Torvalds1da177e2005-04-16 15:20:36 -070068#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
69
70/*
71 * Console mode. Override with conmode=
72 */
73extern unsigned int console_mode;
74extern unsigned int console_devno;
75extern unsigned int console_irq;
76
Heiko Carstens2b67fc42007-02-05 21:16:47 +010077extern char vmhalt_cmd[];
78extern char vmpoff_cmd[];
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080#define CONSOLE_IS_UNDEFINED (console_mode == 0)
81#define CONSOLE_IS_SCLP (console_mode == 1)
82#define CONSOLE_IS_3215 (console_mode == 2)
83#define CONSOLE_IS_3270 (console_mode == 3)
84#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
85#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
86#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
87
Michael Holzheuff6b8ea2006-09-20 15:58:49 +020088struct ipl_list_hdr {
89 u32 len;
90 u8 reserved1[3];
Heiko Carstens1e8e3382005-10-30 15:00:11 -080091 u8 version;
Michael Holzheuff6b8ea2006-09-20 15:58:49 +020092 u32 blk0_len;
93 u8 pbt;
94 u8 flags;
95 u16 reserved2;
Heiko Carstens1e8e3382005-10-30 15:00:11 -080096} __attribute__((packed));
97
98struct ipl_block_fcp {
Michael Holzheuff6b8ea2006-09-20 15:58:49 +020099 u8 reserved1[313-1];
100 u8 opt;
101 u8 reserved2[3];
102 u16 reserved3;
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800103 u16 devno;
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200104 u8 reserved4[4];
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800105 u64 wwpn;
106 u64 lun;
107 u32 bootprog;
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200108 u8 reserved5[12];
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800109 u64 br_lba;
110 u32 scp_data_len;
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200111 u8 reserved6[260];
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800112 u8 scp_data[];
113} __attribute__((packed));
114
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200115struct ipl_block_ccw {
116 u8 load_param[8];
117 u8 reserved1[84];
118 u8 reserved2[2];
119 u16 devno;
120 u8 vm_flags;
121 u8 reserved3[3];
122 u32 vm_parm_len;
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800123} __attribute__((packed));
124
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200125struct ipl_parameter_block {
126 struct ipl_list_hdr hdr;
127 union {
128 struct ipl_block_fcp fcp;
129 struct ipl_block_ccw ccw;
130 } ipl_info;
131} __attribute__((packed));
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800132
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200133#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
134 sizeof(struct ipl_block_fcp))
135
136#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
137 sizeof(struct ipl_block_ccw))
138
139#define IPL_MAX_SUPPORTED_VERSION (0)
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800140
141/*
142 * IPL validity flags and parameters as detected in head.S
143 */
Heiko Carstense87bfe52006-09-20 15:59:15 +0200144extern u32 ipl_flags;
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800145extern u16 ipl_devno;
146
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200147void do_reipl(void);
148
Heiko Carstense87bfe52006-09-20 15:59:15 +0200149enum {
150 IPL_DEVNO_VALID = 1,
151 IPL_PARMBLOCK_VALID = 2,
152};
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800153
154#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
155 IPL_PARMBLOCK_ORIGIN)
Michael Holzheuff6b8ea2006-09-20 15:58:49 +0200156#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
Heiko Carstens1e8e3382005-10-30 15:00:11 -0800157
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800158#else /* __ASSEMBLY__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
160#ifndef __s390x__
161#define IPL_DEVICE 0x10404
162#define INITRD_START 0x1040C
163#define INITRD_SIZE 0x10414
164#else /* __s390x__ */
165#define IPL_DEVICE 0x10400
166#define INITRD_START 0x10408
167#define INITRD_SIZE 0x10410
168#endif /* __s390x__ */
169#define COMMAND_LINE 0x10480
170
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800171#endif /* __ASSEMBLY__ */
172#endif /* __KERNEL__ */
173#endif /* _ASM_S390_SETUP_H */