Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * include/asm-s390/setup.h | |
3 | * | |
4 | * S390 version | |
5 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | |
6 | */ | |
7 | ||
8 | #ifndef _ASM_S390_SETUP_H | |
9 | #define _ASM_S390_SETUP_H | |
10 | ||
0defa3c1 HC |
11 | #ifdef __KERNEL__ |
12 | ||
1e8e3383 HC |
13 | #include <asm/types.h> |
14 | ||
1da177e4 LT |
15 | #define PARMAREA 0x10400 |
16 | #define COMMAND_LINE_SIZE 896 | |
1da177e4 | 17 | #define MEMORY_CHUNKS 16 /* max 0x7fff */ |
1e8e3383 | 18 | #define IPL_PARMBLOCK_ORIGIN 0x2000 |
1da177e4 LT |
19 | |
20 | #ifndef __ASSEMBLY__ | |
21 | ||
22 | #ifndef __s390x__ | |
23 | #define IPL_DEVICE (*(unsigned long *) (0x10404)) | |
24 | #define INITRD_START (*(unsigned long *) (0x1040C)) | |
25 | #define INITRD_SIZE (*(unsigned long *) (0x10414)) | |
26 | #else /* __s390x__ */ | |
27 | #define IPL_DEVICE (*(unsigned long *) (0x10400)) | |
28 | #define INITRD_START (*(unsigned long *) (0x10408)) | |
29 | #define INITRD_SIZE (*(unsigned long *) (0x10410)) | |
30 | #endif /* __s390x__ */ | |
31 | #define COMMAND_LINE ((char *) (0x10480)) | |
32 | ||
33 | /* | |
34 | * Machine features detected in head.S | |
35 | */ | |
36 | extern unsigned long machine_flags; | |
37 | ||
38 | #define MACHINE_IS_VM (machine_flags & 1) | |
39 | #define MACHINE_IS_P390 (machine_flags & 4) | |
40 | #define MACHINE_HAS_MVPG (machine_flags & 16) | |
1da177e4 LT |
41 | #define MACHINE_HAS_IDTE (machine_flags & 128) |
42 | ||
43 | #ifndef __s390x__ | |
44 | #define MACHINE_HAS_IEEE (machine_flags & 2) | |
45 | #define MACHINE_HAS_CSP (machine_flags & 8) | |
abdba61a | 46 | #define MACHINE_HAS_DIAG44 (1) |
1da177e4 LT |
47 | #else /* __s390x__ */ |
48 | #define MACHINE_HAS_IEEE (1) | |
49 | #define MACHINE_HAS_CSP (1) | |
abdba61a | 50 | #define MACHINE_HAS_DIAG44 (machine_flags & 32) |
1da177e4 LT |
51 | #endif /* __s390x__ */ |
52 | ||
53 | ||
54 | #define MACHINE_HAS_SCLP (!MACHINE_IS_P390) | |
55 | ||
56 | /* | |
57 | * Console mode. Override with conmode= | |
58 | */ | |
59 | extern unsigned int console_mode; | |
60 | extern unsigned int console_devno; | |
61 | extern unsigned int console_irq; | |
62 | ||
63 | #define CONSOLE_IS_UNDEFINED (console_mode == 0) | |
64 | #define CONSOLE_IS_SCLP (console_mode == 1) | |
65 | #define CONSOLE_IS_3215 (console_mode == 2) | |
66 | #define CONSOLE_IS_3270 (console_mode == 3) | |
67 | #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0) | |
68 | #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) | |
69 | #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) | |
70 | ||
ff6b8ea6 MH |
71 | |
72 | struct ipl_list_hdr { | |
73 | u32 len; | |
74 | u8 reserved1[3]; | |
1e8e3383 | 75 | u8 version; |
ff6b8ea6 MH |
76 | u32 blk0_len; |
77 | u8 pbt; | |
78 | u8 flags; | |
79 | u16 reserved2; | |
1e8e3383 HC |
80 | } __attribute__((packed)); |
81 | ||
82 | struct ipl_block_fcp { | |
ff6b8ea6 MH |
83 | u8 reserved1[313-1]; |
84 | u8 opt; | |
85 | u8 reserved2[3]; | |
86 | u16 reserved3; | |
1e8e3383 | 87 | u16 devno; |
ff6b8ea6 | 88 | u8 reserved4[4]; |
1e8e3383 HC |
89 | u64 wwpn; |
90 | u64 lun; | |
91 | u32 bootprog; | |
ff6b8ea6 | 92 | u8 reserved5[12]; |
1e8e3383 HC |
93 | u64 br_lba; |
94 | u32 scp_data_len; | |
ff6b8ea6 | 95 | u8 reserved6[260]; |
1e8e3383 HC |
96 | u8 scp_data[]; |
97 | } __attribute__((packed)); | |
98 | ||
ff6b8ea6 MH |
99 | struct ipl_block_ccw { |
100 | u8 load_param[8]; | |
101 | u8 reserved1[84]; | |
102 | u8 reserved2[2]; | |
103 | u16 devno; | |
104 | u8 vm_flags; | |
105 | u8 reserved3[3]; | |
106 | u32 vm_parm_len; | |
107 | } __attribute__((packed)); | |
108 | ||
1e8e3383 | 109 | struct ipl_parameter_block { |
ff6b8ea6 | 110 | struct ipl_list_hdr hdr; |
1e8e3383 | 111 | union { |
ff6b8ea6 MH |
112 | struct ipl_block_fcp fcp; |
113 | struct ipl_block_ccw ccw; | |
114 | } ipl_info; | |
1e8e3383 HC |
115 | } __attribute__((packed)); |
116 | ||
ff6b8ea6 MH |
117 | #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ |
118 | sizeof(struct ipl_block_fcp)) | |
1e8e3383 | 119 | |
ff6b8ea6 MH |
120 | #define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ |
121 | sizeof(struct ipl_block_ccw)) | |
122 | ||
123 | #define IPL_MAX_SUPPORTED_VERSION (0) | |
1e8e3383 HC |
124 | |
125 | /* | |
126 | * IPL validity flags and parameters as detected in head.S | |
127 | */ | |
e87bfe51 | 128 | extern u32 ipl_flags; |
1e8e3383 HC |
129 | extern u16 ipl_devno; |
130 | ||
ff6b8ea6 MH |
131 | void do_reipl(void); |
132 | ||
e87bfe51 HC |
133 | enum { |
134 | IPL_DEVNO_VALID = 1, | |
135 | IPL_PARMBLOCK_VALID = 2, | |
136 | }; | |
1e8e3383 HC |
137 | |
138 | #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ | |
139 | IPL_PARMBLOCK_ORIGIN) | |
ff6b8ea6 | 140 | #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) |
1e8e3383 | 141 | |
0defa3c1 | 142 | #else /* __ASSEMBLY__ */ |
1da177e4 LT |
143 | |
144 | #ifndef __s390x__ | |
145 | #define IPL_DEVICE 0x10404 | |
146 | #define INITRD_START 0x1040C | |
147 | #define INITRD_SIZE 0x10414 | |
148 | #else /* __s390x__ */ | |
149 | #define IPL_DEVICE 0x10400 | |
150 | #define INITRD_START 0x10408 | |
151 | #define INITRD_SIZE 0x10410 | |
152 | #endif /* __s390x__ */ | |
153 | #define COMMAND_LINE 0x10480 | |
154 | ||
0defa3c1 HC |
155 | #endif /* __ASSEMBLY__ */ |
156 | #endif /* __KERNEL__ */ | |
157 | #endif /* _ASM_S390_SETUP_H */ |