1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * s390 diagnose functions
4 *
5 * Copyright IBM Corp. 2007
6 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
7 */
8
9 #ifndef _ASM_S390_DIAG_H
10 #define _ASM_S390_DIAG_H
11
12 #include <linux/if_ether.h>
13 #include <linux/percpu.h>
14 #include <asm/asm-extable.h>
15 #include <asm/sclp.h>
16 #include <asm/cio.h>
17
18 enum diag_stat_enum {
19 DIAG_STAT_X008,
20 DIAG_STAT_X00C,
21 DIAG_STAT_X010,
22 DIAG_STAT_X014,
23 DIAG_STAT_X044,
24 DIAG_STAT_X064,
25 DIAG_STAT_X08C,
26 DIAG_STAT_X09C,
27 DIAG_STAT_X0DC,
28 DIAG_STAT_X204,
29 DIAG_STAT_X210,
30 DIAG_STAT_X224,
31 DIAG_STAT_X250,
32 DIAG_STAT_X258,
33 DIAG_STAT_X26C,
34 DIAG_STAT_X288,
35 DIAG_STAT_X2C4,
36 DIAG_STAT_X2FC,
37 DIAG_STAT_X304,
38 DIAG_STAT_X308,
39 DIAG_STAT_X318,
40 DIAG_STAT_X320,
41 DIAG_STAT_X500,
42 NR_DIAG_STAT
43 };
44
45 void diag_stat_inc(enum diag_stat_enum nr);
46 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
47
48 struct hypfs_diag0c_entry;
49
50 /*
51 * Diagnose 0c: Pseudo Timer
52 */
53 void diag0c(struct hypfs_diag0c_entry *data);
54
55 /*
56 * Diagnose 10: Release page range
57 */
58 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
59 {
60 unsigned long start_addr, end_addr;
61
62 start_addr = pfn_to_phys(start_pfn);
63 end_addr = pfn_to_phys(start_pfn + num_pfn - 1);
64
65 diag_stat_inc(DIAG_STAT_X010);
66 asm volatile(
67 "0: diag %0,%1,0x10\n"
68 "1: nopr %%r7\n"
69 EX_TABLE(0b, 1b)
70 EX_TABLE(1b, 1b)
71 : : "a" (start_addr), "a" (end_addr));
72 }
73
74 /*
75 * Diagnose 14: Input spool file manipulation
76 */
77 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
78
79 /*
80 * Diagnose 210: Get information about a virtual device
81 */
82 struct diag210 {
83 u16 vrdcdvno; /* device number (input) */
84 u16 vrdclen; /* data block length (input) */
85 u8 vrdcvcla; /* virtual device class (output) */
86 u8 vrdcvtyp; /* virtual device type (output) */
87 u8 vrdcvsta; /* virtual device status (output) */
88 u8 vrdcvfla; /* virtual device flags (output) */
89 u8 vrdcrccl; /* real device class (output) */
90 u8 vrdccrty; /* real device type (output) */
91 u8 vrdccrmd; /* real device model (output) */
92 u8 vrdccrft; /* real device feature (output) */
93 } __packed __aligned(4);
94
95 extern int diag210(struct diag210 *addr);
96
97 struct diag8c {
98 u8 flags;
99 u8 num_partitions;
100 u16 width;
101 u16 height;
102 u8 data[];
103 } __packed __aligned(4);
104
105 extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno);
106
107 /* bit is set in flags, when physical cpu info is included in diag 204 data */
108 #define DIAG204_LPAR_PHYS_FLG 0x80
109 #define DIAG204_LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */
110 #define DIAG204_CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */
111
112 /* diag 204 subcodes */
113 enum diag204_sc {
114 DIAG204_SUBC_STIB4 = 4,
115 DIAG204_SUBC_RSI = 5,
116 DIAG204_SUBC_STIB6 = 6,
117 DIAG204_SUBC_STIB7 = 7
118 };
119
120 #define DIAG204_SUBCODE_MASK 0xffff
121 #define DIAG204_BIF_BIT 0x80000000
122 #define DIAG204_BUSY_WAIT (HZ / 10)
123
124 /* The two available diag 204 data formats */
125 enum diag204_format {
126 DIAG204_INFO_SIMPLE = 0,
127 DIAG204_INFO_EXT = 0x00010000
128 };
129
130 enum diag204_cpu_flags {
131 DIAG204_CPU_ONLINE = 0x20,
132 DIAG204_CPU_CAPPED = 0x40,
133 };
134
135 struct diag204_info_blk_hdr {
136 __u8 npar;
137 __u8 flags;
138 __u16 tslice;
139 __u16 phys_cpus;
140 __u16 this_part;
141 __u64 curtod;
142 } __packed;
143
144 struct diag204_x_info_blk_hdr {
145 __u8 npar;
146 __u8 flags;
147 __u16 tslice;
148 __u16 phys_cpus;
149 __u16 this_part;
150 __u64 curtod1;
151 __u64 curtod2;
152 char reserved[40];
153 } __packed;
154
155 struct diag204_part_hdr {
156 __u8 pn;
157 __u8 cpus;
158 char reserved[6];
159 char part_name[DIAG204_LPAR_NAME_LEN];
160 } __packed;
161
162 struct diag204_x_part_hdr {
163 __u8 pn;
164 __u8 cpus;
165 __u8 rcpus;
166 __u8 pflag;
167 __u32 mlu;
168 char part_name[DIAG204_LPAR_NAME_LEN];
169 char lpc_name[8];
170 char os_name[8];
171 __u64 online_cs;
172 __u64 online_es;
173 __u8 upid;
174 __u8 reserved:3;
175 __u8 mtid:5;
176 char reserved1[2];
177 __u32 group_mlu;
178 char group_name[8];
179 char hardware_group_name[8];
180 char reserved2[24];
181 } __packed;
182
183 struct diag204_cpu_info {
184 __u16 cpu_addr;
185 char reserved1[2];
186 __u8 ctidx;
187 __u8 cflag;
188 __u16 weight;
189 __u64 acc_time;
190 __u64 lp_time;
191 } __packed;
192
193 struct diag204_x_cpu_info {
194 __u16 cpu_addr;
195 char reserved1[2];
196 __u8 ctidx;
197 __u8 cflag;
198 __u16 weight;
199 __u64 acc_time;
200 __u64 lp_time;
201 __u16 min_weight;
202 __u16 cur_weight;
203 __u16 max_weight;
204 char reseved2[2];
205 __u64 online_time;
206 __u64 wait_time;
207 __u32 pma_weight;
208 __u32 polar_weight;
209 __u32 cpu_type_cap;
210 __u32 group_cpu_type_cap;
211 char reserved3[32];
212 } __packed;
213
214 struct diag204_phys_hdr {
215 char reserved1[1];
216 __u8 cpus;
217 char reserved2[6];
218 char mgm_name[8];
219 } __packed;
220
221 struct diag204_x_phys_hdr {
222 char reserved1[1];
223 __u8 cpus;
224 char reserved2[6];
225 char mgm_name[8];
226 char reserved3[80];
227 } __packed;
228
229 struct diag204_phys_cpu {
230 __u16 cpu_addr;
231 char reserved1[2];
232 __u8 ctidx;
233 char reserved2[3];
234 __u64 mgm_time;
235 char reserved3[8];
236 } __packed;
237
238 struct diag204_x_phys_cpu {
239 __u16 cpu_addr;
240 char reserved1[2];
241 __u8 ctidx;
242 char reserved2[1];
243 __u16 weight;
244 __u64 mgm_time;
245 char reserved3[80];
246 } __packed;
247
248 struct diag204_x_part_block {
249 struct diag204_x_part_hdr hdr;
250 struct diag204_x_cpu_info cpus[];
251 } __packed;
252
253 struct diag204_x_phys_block {
254 struct diag204_x_phys_hdr hdr;
255 struct diag204_x_phys_cpu cpus[];
256 } __packed;
257
258 enum diag26c_sc {
259 DIAG26C_PORT_VNIC = 0x00000024,
260 DIAG26C_MAC_SERVICES = 0x00000030
261 };
262
263 enum diag26c_version {
264 DIAG26C_VERSION2 = 0x00000002, /* z/VM 5.4.0 */
265 DIAG26C_VERSION6_VM65918 = 0x00020006 /* z/VM 6.4.0 + VM65918 */
266 };
267
268 #define DIAG26C_VNIC_INFO 0x0002
269 struct diag26c_vnic_req {
270 u32 resp_buf_len;
271 u32 resp_version;
272 u16 req_format;
273 u16 vlan_id;
274 u64 sys_name;
275 u8 res[2];
276 u16 devno;
277 } __packed __aligned(8);
278
279 #define VNIC_INFO_PROT_L3 1
280 #define VNIC_INFO_PROT_L2 2
281 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */
282 struct diag26c_vnic_resp {
283 u32 version;
284 u32 entry_cnt;
285 /* VNIC info: */
286 u32 next_entry;
287 u64 owner;
288 u16 devno;
289 u8 status;
290 u8 type;
291 u64 lan_owner;
292 u64 lan_name;
293 u64 port_name;
294 u8 port_type;
295 u8 ext_status:6;
296 u8 protocol:2;
297 u16 base_devno;
298 u32 port_num;
299 u32 ifindex;
300 u32 maxinfo;
301 u32 dev_count;
302 /* 3x device info: */
303 u8 dev_info1[28];
304 u8 dev_info2[28];
305 u8 dev_info3[28];
306 } __packed __aligned(8);
307
308 #define DIAG26C_GET_MAC 0x0000
309 struct diag26c_mac_req {
310 u32 resp_buf_len;
311 u32 resp_version;
312 u16 op_code;
313 u16 devno;
314 u8 res[4];
315 };
316
317 struct diag26c_mac_resp {
318 u32 version;
319 u8 mac[ETH_ALEN];
320 u8 res[2];
321 } __aligned(8);
322
323 #define CPNC_LINUX 0x4
324 union diag318_info {
325 unsigned long val;
326 struct {
327 unsigned long cpnc : 8;
328 unsigned long cpvc : 56;
329 };
330 };
331
332 static inline bool diag204_has_bif(void)
333 {
334 return sclp.has_diag204_bif;
335 }
336
337 int diag204(unsigned long subcode, unsigned long size, void *addr);
338 int diag224(void *ptr);
339 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
340
341 struct hypfs_diag0c_entry;
342
343 /*
344 * This structure must contain only pointers/references into
345 * the AMODE31 text section.
346 */
347 struct diag_ops {
348 int (*diag210)(struct diag210 *addr);
349 int (*diag26c)(unsigned long rx, unsigned long rx1, enum diag26c_sc subcode);
350 int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
351 int (*diag8c)(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
352 void (*diag0c)(unsigned long rx);
353 void (*diag308_reset)(void);
354 };
355
356 extern struct diag_ops diag_amode31_ops;
357 extern struct diag210 *__diag210_tmp_amode31;
358
359 int _diag210_amode31(struct diag210 *addr);
360 int _diag26c_amode31(unsigned long rx, unsigned long rx1, enum diag26c_sc subcode);
361 int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode);
362 void _diag0c_amode31(unsigned long rx);
363 void _diag308_reset_amode31(void);
364 int _diag8c_amode31(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
365
366 #endif /* _ASM_S390_DIAG_H */
367
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