1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * definition for store system information stsi
4 *
5 * Copyright IBM Corp. 2001, 2008
6 *
7 * Author(s): Ulrich Weigand <weigand@de.ibm.com>
8 * Christian Borntraeger <borntraeger@de.ibm.com>
9 */
10
11 #ifndef __ASM_S390_SYSINFO_H
12 #define __ASM_S390_SYSINFO_H
13
14 #include <asm/bitsperlong.h>
15 #include <linux/uuid.h>
16
17 struct sysinfo_1_1_1 {
18 unsigned char p:1;
19 unsigned char :6;
20 unsigned char t:1;
21 unsigned char :8;
22 unsigned char ccr;
23 unsigned char cai;
24 char reserved_0[20];
25 unsigned long lic;
26 char manufacturer[16];
27 char type[4];
28 char reserved_1[12];
29 char model_capacity[16];
30 char sequence[16];
31 char plant[4];
32 char model[16];
33 char model_perm_cap[16];
34 char model_temp_cap[16];
35 unsigned int model_cap_rating;
36 unsigned int model_perm_cap_rating;
37 unsigned int model_temp_cap_rating;
38 unsigned char typepct[5];
39 unsigned char reserved_2[3];
40 unsigned int ncr;
41 unsigned int npr;
42 unsigned int ntr;
43 char reserved_3[4];
44 char model_var_cap[16];
45 unsigned int model_var_cap_rating;
46 unsigned int nvr;
47 };
48
49 struct sysinfo_1_2_1 {
50 char reserved_0[80];
51 char sequence[16];
52 char plant[4];
53 char reserved_1[2];
54 unsigned short cpu_address;
55 };
56
57 struct sysinfo_1_2_2 {
58 char format;
59 char reserved_0[1];
60 unsigned short acc_offset;
61 unsigned char mt_installed :1;
62 unsigned char :2;
63 unsigned char mt_stid :5;
64 unsigned char :3;
65 unsigned char mt_gtid :5;
66 char reserved_1[18];
67 unsigned int nominal_cap;
68 unsigned int secondary_cap;
69 unsigned int capability;
70 unsigned short cpus_total;
71 unsigned short cpus_configured;
72 unsigned short cpus_standby;
73 unsigned short cpus_reserved;
74 unsigned short adjustment[];
75 };
76
77 struct sysinfo_1_2_2_extension {
78 unsigned int alt_capability;
79 unsigned short alt_adjustment[];
80 };
81
82 struct sysinfo_2_2_1 {
83 char reserved_0[80];
84 char sequence[16];
85 char plant[4];
86 unsigned short cpu_id;
87 unsigned short cpu_address;
88 };
89
90 struct sysinfo_2_2_2 {
91 char reserved_0[32];
92 unsigned short lpar_number;
93 char reserved_1;
94 unsigned char characteristics;
95 unsigned short cpus_total;
96 unsigned short cpus_configured;
97 unsigned short cpus_standby;
98 unsigned short cpus_reserved;
99 char name[8];
100 unsigned int caf;
101 char reserved_2[8];
102 unsigned char mt_installed :1;
103 unsigned char :2;
104 unsigned char mt_stid :5;
105 unsigned char :3;
106 unsigned char mt_gtid :5;
107 unsigned char :3;
108 unsigned char mt_psmtid :5;
109 char reserved_3[5];
110 unsigned short cpus_dedicated;
111 unsigned short cpus_shared;
112 char reserved_4[3];
113 unsigned char vsne;
114 uuid_t uuid;
115 char reserved_5[160];
116 char ext_name[256];
117 };
118
119 #define LPAR_CHAR_DEDICATED (1 << 7)
120 #define LPAR_CHAR_SHARED (1 << 6)
121 #define LPAR_CHAR_LIMITED (1 << 5)
122
123 struct sysinfo_3_2_2 {
124 char reserved_0[31];
125 unsigned char :4;
126 unsigned char count:4;
127 struct {
128 char reserved_0[4];
129 unsigned short cpus_total;
130 unsigned short cpus_configured;
131 unsigned short cpus_standby;
132 unsigned short cpus_reserved;
133 char name[8];
134 unsigned int caf;
135 char cpi[16];
136 char reserved_1[3];
137 unsigned char evmne;
138 unsigned int reserved_2;
139 uuid_t uuid;
140 } vm[8];
141 char reserved_3[1504];
142 char ext_names[8][256];
143 };
144
145 extern int topology_max_mnest;
146
147 /*
148 * Returns the maximum nesting level supported by the cpu topology code.
149 * The current maximum level is 4 which is the drawer level.
150 */
151 static inline unsigned char topology_mnest_limit(void)
152 {
153 return min(topology_max_mnest, 4);
154 }
155
156 #define TOPOLOGY_NR_MAG 6
157
158 struct topology_core {
159 unsigned char nl;
160 unsigned char reserved0[3];
161 unsigned char :5;
162 unsigned char d:1;
163 unsigned char pp:2;
164 unsigned char reserved1;
165 unsigned short origin;
166 unsigned long mask;
167 };
168
169 struct topology_container {
170 unsigned char nl;
171 unsigned char reserved[6];
172 unsigned char id;
173 };
174
175 union topology_entry {
176 unsigned char nl;
177 struct topology_core cpu;
178 struct topology_container container;
179 };
180
181 struct sysinfo_15_1_x {
182 unsigned char reserved0[2];
183 unsigned short length;
184 unsigned char mag[TOPOLOGY_NR_MAG];
185 unsigned char reserved1;
186 unsigned char mnest;
187 unsigned char reserved2[4];
188 union topology_entry tle[];
189 };
190
191 int stsi(void *sysinfo, int fc, int sel1, int sel2);
192
193 /*
194 * Service level reporting interface.
195 */
196 struct service_level {
197 struct list_head list;
198 void (*seq_print)(struct seq_file *, struct service_level *);
199 };
200
201 int register_service_level(struct service_level *);
202 int unregister_service_level(struct service_level *);
203
204 int sthyi_fill(void *dst, u64 *rc);
205 #endif /* __ASM_S390_SYSINFO_H */
206
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