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 };
44 
45 struct sysinfo_1_2_1 {
46 	char reserved_0[80];
47 	char sequence[16];
48 	char plant[4];
49 	char reserved_1[2];
50 	unsigned short cpu_address;
51 };
52 
53 struct sysinfo_1_2_2 {
54 	char format;
55 	char reserved_0[1];
56 	unsigned short acc_offset;
57 	unsigned char mt_installed :1;
58 	unsigned char :2;
59 	unsigned char mt_stid :5;
60 	unsigned char :3;
61 	unsigned char mt_gtid :5;
62 	char reserved_1[18];
63 	unsigned int nominal_cap;
64 	unsigned int secondary_cap;
65 	unsigned int capability;
66 	unsigned short cpus_total;
67 	unsigned short cpus_configured;
68 	unsigned short cpus_standby;
69 	unsigned short cpus_reserved;
70 	unsigned short adjustment[0];
71 };
72 
73 struct sysinfo_1_2_2_extension {
74 	unsigned int alt_capability;
75 	unsigned short alt_adjustment[0];
76 };
77 
78 struct sysinfo_2_2_1 {
79 	char reserved_0[80];
80 	char sequence[16];
81 	char plant[4];
82 	unsigned short cpu_id;
83 	unsigned short cpu_address;
84 };
85 
86 struct sysinfo_2_2_2 {
87 	char reserved_0[32];
88 	unsigned short lpar_number;
89 	char reserved_1;
90 	unsigned char characteristics;
91 	unsigned short cpus_total;
92 	unsigned short cpus_configured;
93 	unsigned short cpus_standby;
94 	unsigned short cpus_reserved;
95 	char name[8];
96 	unsigned int caf;
97 	char reserved_2[8];
98 	unsigned char mt_installed :1;
99 	unsigned char :2;
100 	unsigned char mt_stid :5;
101 	unsigned char :3;
102 	unsigned char mt_gtid :5;
103 	unsigned char :3;
104 	unsigned char mt_psmtid :5;
105 	char reserved_3[5];
106 	unsigned short cpus_dedicated;
107 	unsigned short cpus_shared;
108 	char reserved_4[3];
109 	unsigned char vsne;
110 	uuid_t uuid;
111 	char reserved_5[160];
112 	char ext_name[256];
113 };
114 
115 #define LPAR_CHAR_DEDICATED	(1 << 7)
116 #define LPAR_CHAR_SHARED	(1 << 6)
117 #define LPAR_CHAR_LIMITED	(1 << 5)
118 
119 struct sysinfo_3_2_2 {
120 	char reserved_0[31];
121 	unsigned char :4;
122 	unsigned char count:4;
123 	struct {
124 		char reserved_0[4];
125 		unsigned short cpus_total;
126 		unsigned short cpus_configured;
127 		unsigned short cpus_standby;
128 		unsigned short cpus_reserved;
129 		char name[8];
130 		unsigned int caf;
131 		char cpi[16];
132 		char reserved_1[3];
133 		unsigned char evmne;
134 		unsigned int reserved_2;
135 		uuid_t uuid;
136 	} vm[8];
137 	char reserved_3[1504];
138 	char ext_names[8][256];
139 };
140 
141 extern int topology_max_mnest;
142 
143 /*
144  * Returns the maximum nesting level supported by the cpu topology code.
145  * The current maximum level is 4 which is the drawer level.
146  */
topology_mnest_limit(void)147 static inline unsigned char topology_mnest_limit(void)
148 {
149 	return min(topology_max_mnest, 4);
150 }
151 
152 #define TOPOLOGY_NR_MAG		6
153 
154 struct topology_core {
155 	unsigned char nl;
156 	unsigned char reserved0[3];
157 	unsigned char :5;
158 	unsigned char d:1;
159 	unsigned char pp:2;
160 	unsigned char reserved1;
161 	unsigned short origin;
162 	unsigned long mask;
163 };
164 
165 struct topology_container {
166 	unsigned char nl;
167 	unsigned char reserved[6];
168 	unsigned char id;
169 };
170 
171 union topology_entry {
172 	unsigned char nl;
173 	struct topology_core cpu;
174 	struct topology_container container;
175 };
176 
177 struct sysinfo_15_1_x {
178 	unsigned char reserved0[2];
179 	unsigned short length;
180 	unsigned char mag[TOPOLOGY_NR_MAG];
181 	unsigned char reserved1;
182 	unsigned char mnest;
183 	unsigned char reserved2[4];
184 	union topology_entry tle[0];
185 };
186 
187 int stsi(void *sysinfo, int fc, int sel1, int sel2);
188 
189 /*
190  * Service level reporting interface.
191  */
192 struct service_level {
193 	struct list_head list;
194 	void (*seq_print)(struct seq_file *, struct service_level *);
195 };
196 
197 int register_service_level(struct service_level *);
198 int unregister_service_level(struct service_level *);
199 
200 int sthyi_fill(void *dst, u64 *rc);
201 #endif /* __ASM_S390_SYSINFO_H */
202