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Commit | Line | Data |
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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 | ||
58952942 | 10 | #include <asm/lowcore.h> |
46b05d26 | 11 | #include <asm/types.h> |
411ed322 MH |
12 | #include <asm/cio.h> |
13 | #include <asm/setup.h> | |
46b05d26 MH |
14 | |
15 | #define IPL_PARMBLOCK_ORIGIN 0x2000 | |
16 | ||
17 | #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ | |
18 | sizeof(struct ipl_block_fcp)) | |
19 | ||
69928601 | 20 | #define IPL_PARM_BLK0_FCP_LEN (sizeof(struct ipl_block_fcp) + 16) |
fbb04f38 | 21 | |
46b05d26 MH |
22 | #define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ |
23 | sizeof(struct ipl_block_ccw)) | |
24 | ||
69928601 | 25 | #define IPL_PARM_BLK0_CCW_LEN (sizeof(struct ipl_block_ccw) + 16) |
fbb04f38 | 26 | |
46b05d26 MH |
27 | #define IPL_MAX_SUPPORTED_VERSION (0) |
28 | ||
29 | #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ | |
30 | IPL_PARMBLOCK_ORIGIN) | |
31 | #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) | |
32 | ||
33 | struct ipl_list_hdr { | |
34 | u32 len; | |
35 | u8 reserved1[3]; | |
36 | u8 version; | |
37 | u32 blk0_len; | |
38 | u8 pbt; | |
39 | u8 flags; | |
40 | u16 reserved2; | |
69928601 | 41 | u8 loadparm[8]; |
46b05d26 MH |
42 | } __attribute__((packed)); |
43 | ||
44 | struct ipl_block_fcp { | |
69928601 | 45 | u8 reserved1[305-1]; |
46b05d26 MH |
46 | u8 opt; |
47 | u8 reserved2[3]; | |
48 | u16 reserved3; | |
49 | u16 devno; | |
50 | u8 reserved4[4]; | |
51 | u64 wwpn; | |
52 | u64 lun; | |
53 | u32 bootprog; | |
54 | u8 reserved5[12]; | |
55 | u64 br_lba; | |
56 | u32 scp_data_len; | |
57 | u8 reserved6[260]; | |
58 | u8 scp_data[]; | |
59 | } __attribute__((packed)); | |
60 | ||
a0443fbb | 61 | #define DIAG308_VMPARM_SIZE 64 |
684d2fd4 HB |
62 | #define DIAG308_SCPDATA_SIZE (PAGE_SIZE - (sizeof(struct ipl_list_hdr) + \ |
63 | offsetof(struct ipl_block_fcp, scp_data))) | |
a0443fbb | 64 | |
46b05d26 | 65 | struct ipl_block_ccw { |
46b05d26 MH |
66 | u8 reserved1[84]; |
67 | u8 reserved2[2]; | |
68 | u16 devno; | |
69 | u8 vm_flags; | |
70 | u8 reserved3[3]; | |
71 | u32 vm_parm_len; | |
a0443fbb HB |
72 | u8 nss_name[8]; |
73 | u8 vm_parm[DIAG308_VMPARM_SIZE]; | |
74 | u8 reserved4[8]; | |
46b05d26 MH |
75 | } __attribute__((packed)); |
76 | ||
77 | struct ipl_parameter_block { | |
78 | struct ipl_list_hdr hdr; | |
79 | union { | |
80 | struct ipl_block_fcp fcp; | |
81 | struct ipl_block_ccw ccw; | |
82 | } ipl_info; | |
a0443fbb | 83 | } __attribute__((packed,aligned(4096))); |
46b05d26 MH |
84 | |
85 | /* | |
6fc321fd | 86 | * IPL validity flags |
46b05d26 MH |
87 | */ |
88 | extern u32 ipl_flags; | |
c5dd8586 | 89 | extern u32 dump_prefix_page; |
411ed322 | 90 | |
58952942 | 91 | struct dump_save_areas { |
a62bc073 | 92 | struct save_area_ext **areas; |
58952942 MH |
93 | int count; |
94 | }; | |
95 | ||
96 | extern struct dump_save_areas dump_save_areas; | |
a62bc073 | 97 | struct save_area_ext *dump_save_area_create(int cpu); |
58952942 | 98 | |
46b05d26 | 99 | extern void do_reipl(void); |
99ca4e58 MH |
100 | extern void do_halt(void); |
101 | extern void do_poff(void); | |
46b05d26 | 102 | extern void ipl_save_parameters(void); |
a0443fbb | 103 | extern void ipl_update_parameters(void); |
684d2fd4 HB |
104 | extern size_t append_ipl_vmparm(char *, size_t); |
105 | extern size_t append_ipl_scpdata(char *, size_t); | |
46b05d26 MH |
106 | |
107 | enum { | |
108 | IPL_DEVNO_VALID = 1, | |
109 | IPL_PARMBLOCK_VALID = 2, | |
110 | IPL_NSS_VALID = 4, | |
111 | }; | |
112 | ||
411ed322 MH |
113 | enum ipl_type { |
114 | IPL_TYPE_UNKNOWN = 1, | |
115 | IPL_TYPE_CCW = 2, | |
116 | IPL_TYPE_FCP = 4, | |
117 | IPL_TYPE_FCP_DUMP = 8, | |
118 | IPL_TYPE_NSS = 16, | |
119 | }; | |
120 | ||
121 | struct ipl_info | |
122 | { | |
123 | enum ipl_type type; | |
124 | union { | |
125 | struct { | |
126 | struct ccw_dev_id dev_id; | |
127 | } ccw; | |
128 | struct { | |
129 | struct ccw_dev_id dev_id; | |
130 | u64 wwpn; | |
131 | u64 lun; | |
132 | } fcp; | |
133 | struct { | |
134 | char name[NSS_NAME_SIZE + 1]; | |
135 | } nss; | |
136 | } data; | |
137 | }; | |
138 | ||
139 | extern struct ipl_info ipl_info; | |
99ca4e58 | 140 | extern void setup_ipl(void); |
411ed322 | 141 | |
46b05d26 MH |
142 | /* |
143 | * DIAG 308 support | |
144 | */ | |
145 | enum diag308_subcode { | |
146 | DIAG308_REL_HSA = 2, | |
147 | DIAG308_IPL = 3, | |
148 | DIAG308_DUMP = 4, | |
149 | DIAG308_SET = 5, | |
150 | DIAG308_STORE = 6, | |
151 | }; | |
152 | ||
153 | enum diag308_ipl_type { | |
154 | DIAG308_IPL_TYPE_FCP = 0, | |
155 | DIAG308_IPL_TYPE_CCW = 2, | |
156 | }; | |
157 | ||
158 | enum diag308_opt { | |
159 | DIAG308_IPL_OPT_IPL = 0x10, | |
160 | DIAG308_IPL_OPT_DUMP = 0x20, | |
161 | }; | |
162 | ||
48657d22 MH |
163 | enum diag308_flags { |
164 | DIAG308_FLAGS_LP_VALID = 0x80, | |
165 | }; | |
166 | ||
a0443fbb HB |
167 | enum diag308_vm_flags { |
168 | DIAG308_VM_FLAGS_NSS_VALID = 0x80, | |
169 | DIAG308_VM_FLAGS_VP_VALID = 0x40, | |
170 | }; | |
171 | ||
46b05d26 | 172 | enum diag308_rc { |
3a95e8eb MH |
173 | DIAG308_RC_OK = 0x0001, |
174 | DIAG308_RC_NOCONFIG = 0x0102, | |
46b05d26 MH |
175 | }; |
176 | ||
177 | extern int diag308(unsigned long subcode, void *addr); | |
9dc7356e | 178 | extern void diag308_reset(void); |
60a0c68d | 179 | extern void store_status(void); |
3ab121ab | 180 | extern void lgr_info_log(void); |
46b05d26 MH |
181 | |
182 | #endif /* _ASM_S390_IPL_H */ |