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1da177e4 LT |
1 | /* |
2 | * include/asm-s390/cio.h | |
3 | * include/asm-s390x/cio.h | |
4 | * | |
5 | * Common interface for I/O on S/390 | |
6 | */ | |
7 | #ifndef _ASM_S390_CIO_H_ | |
8 | #define _ASM_S390_CIO_H_ | |
9 | ||
10 | #include <linux/spinlock.h> | |
11 | #include <asm/types.h> | |
12 | ||
13 | #ifdef __KERNEL__ | |
14 | ||
15 | #define LPM_ANYPATH 0xff | |
e5854a58 | 16 | #define __MAX_CSSID 0 |
1da177e4 | 17 | |
b2ffd8e9 | 18 | /** |
23d805b6 | 19 | * struct cmd_scsw - command-mode subchannel status word |
b2ffd8e9 CH |
20 | * @key: subchannel key |
21 | * @sctl: suspend control | |
22 | * @eswf: esw format | |
23 | * @cc: deferred condition code | |
24 | * @fmt: format | |
25 | * @pfch: prefetch | |
26 | * @isic: initial-status interruption control | |
5800266a JP |
27 | * @alcc: address-limit checking control |
28 | * @ssi: suppress-suspended interruption | |
b2ffd8e9 CH |
29 | * @zcc: zero condition code |
30 | * @ectl: extended control | |
31 | * @pno: path not operational | |
32 | * @res: reserved | |
33 | * @fctl: function control | |
34 | * @actl: activity control | |
35 | * @stctl: status control | |
36 | * @cpa: channel program address | |
37 | * @dstat: device status | |
38 | * @cstat: subchannel status | |
39 | * @count: residual count | |
1da177e4 | 40 | */ |
23d805b6 | 41 | struct cmd_scsw { |
b2ffd8e9 CH |
42 | __u32 key : 4; |
43 | __u32 sctl : 1; | |
44 | __u32 eswf : 1; | |
45 | __u32 cc : 2; | |
46 | __u32 fmt : 1; | |
47 | __u32 pfch : 1; | |
48 | __u32 isic : 1; | |
49 | __u32 alcc : 1; | |
50 | __u32 ssi : 1; | |
51 | __u32 zcc : 1; | |
52 | __u32 ectl : 1; | |
53 | __u32 pno : 1; | |
54 | __u32 res : 1; | |
55 | __u32 fctl : 3; | |
56 | __u32 actl : 7; | |
57 | __u32 stctl : 5; | |
58 | __u32 cpa; | |
59 | __u32 dstat : 8; | |
60 | __u32 cstat : 8; | |
61 | __u32 count : 16; | |
1da177e4 LT |
62 | } __attribute__ ((packed)); |
63 | ||
23d805b6 PO |
64 | /** |
65 | * struct tm_scsw - transport-mode subchannel status word | |
66 | * @key: subchannel key | |
67 | * @eswf: esw format | |
68 | * @cc: deferred condition code | |
69 | * @fmt: format | |
70 | * @x: IRB-format control | |
71 | * @q: interrogate-complete | |
72 | * @ectl: extended control | |
73 | * @pno: path not operational | |
74 | * @fctl: function control | |
75 | * @actl: activity control | |
76 | * @stctl: status control | |
77 | * @tcw: TCW address | |
78 | * @dstat: device status | |
79 | * @cstat: subchannel status | |
80 | * @fcxs: FCX status | |
81 | * @schxs: subchannel-extended status | |
82 | */ | |
83 | struct tm_scsw { | |
84 | u32 key:4; | |
85 | u32 :1; | |
86 | u32 eswf:1; | |
87 | u32 cc:2; | |
88 | u32 fmt:3; | |
89 | u32 x:1; | |
90 | u32 q:1; | |
91 | u32 :1; | |
92 | u32 ectl:1; | |
93 | u32 pno:1; | |
94 | u32 :1; | |
95 | u32 fctl:3; | |
96 | u32 actl:7; | |
97 | u32 stctl:5; | |
98 | u32 tcw; | |
99 | u32 dstat:8; | |
100 | u32 cstat:8; | |
101 | u32 fcxs:8; | |
102 | u32 schxs:8; | |
103 | } __attribute__ ((packed)); | |
104 | ||
105 | /** | |
106 | * union scsw - subchannel status word | |
107 | * @cmd: command-mode SCSW | |
108 | * @tm: transport-mode SCSW | |
109 | */ | |
110 | union scsw { | |
111 | struct cmd_scsw cmd; | |
112 | struct tm_scsw tm; | |
113 | } __attribute__ ((packed)); | |
114 | ||
115 | int scsw_is_tm(union scsw *scsw); | |
116 | u32 scsw_key(union scsw *scsw); | |
117 | u32 scsw_eswf(union scsw *scsw); | |
118 | u32 scsw_cc(union scsw *scsw); | |
119 | u32 scsw_ectl(union scsw *scsw); | |
120 | u32 scsw_pno(union scsw *scsw); | |
121 | u32 scsw_fctl(union scsw *scsw); | |
122 | u32 scsw_actl(union scsw *scsw); | |
123 | u32 scsw_stctl(union scsw *scsw); | |
124 | u32 scsw_dstat(union scsw *scsw); | |
125 | u32 scsw_cstat(union scsw *scsw); | |
126 | int scsw_is_solicited(union scsw *scsw); | |
127 | int scsw_is_valid_key(union scsw *scsw); | |
128 | int scsw_is_valid_eswf(union scsw *scsw); | |
129 | int scsw_is_valid_cc(union scsw *scsw); | |
130 | int scsw_is_valid_ectl(union scsw *scsw); | |
131 | int scsw_is_valid_pno(union scsw *scsw); | |
132 | int scsw_is_valid_fctl(union scsw *scsw); | |
133 | int scsw_is_valid_actl(union scsw *scsw); | |
134 | int scsw_is_valid_stctl(union scsw *scsw); | |
135 | int scsw_is_valid_dstat(union scsw *scsw); | |
136 | int scsw_is_valid_cstat(union scsw *scsw); | |
137 | int scsw_cmd_is_valid_key(union scsw *scsw); | |
138 | int scsw_cmd_is_valid_sctl(union scsw *scsw); | |
139 | int scsw_cmd_is_valid_eswf(union scsw *scsw); | |
140 | int scsw_cmd_is_valid_cc(union scsw *scsw); | |
141 | int scsw_cmd_is_valid_fmt(union scsw *scsw); | |
142 | int scsw_cmd_is_valid_pfch(union scsw *scsw); | |
143 | int scsw_cmd_is_valid_isic(union scsw *scsw); | |
144 | int scsw_cmd_is_valid_alcc(union scsw *scsw); | |
145 | int scsw_cmd_is_valid_ssi(union scsw *scsw); | |
146 | int scsw_cmd_is_valid_zcc(union scsw *scsw); | |
147 | int scsw_cmd_is_valid_ectl(union scsw *scsw); | |
148 | int scsw_cmd_is_valid_pno(union scsw *scsw); | |
149 | int scsw_cmd_is_valid_fctl(union scsw *scsw); | |
150 | int scsw_cmd_is_valid_actl(union scsw *scsw); | |
151 | int scsw_cmd_is_valid_stctl(union scsw *scsw); | |
152 | int scsw_cmd_is_valid_dstat(union scsw *scsw); | |
153 | int scsw_cmd_is_valid_cstat(union scsw *scsw); | |
154 | int scsw_cmd_is_solicited(union scsw *scsw); | |
155 | int scsw_tm_is_valid_key(union scsw *scsw); | |
156 | int scsw_tm_is_valid_eswf(union scsw *scsw); | |
157 | int scsw_tm_is_valid_cc(union scsw *scsw); | |
158 | int scsw_tm_is_valid_fmt(union scsw *scsw); | |
159 | int scsw_tm_is_valid_x(union scsw *scsw); | |
160 | int scsw_tm_is_valid_q(union scsw *scsw); | |
161 | int scsw_tm_is_valid_ectl(union scsw *scsw); | |
162 | int scsw_tm_is_valid_pno(union scsw *scsw); | |
163 | int scsw_tm_is_valid_fctl(union scsw *scsw); | |
164 | int scsw_tm_is_valid_actl(union scsw *scsw); | |
165 | int scsw_tm_is_valid_stctl(union scsw *scsw); | |
166 | int scsw_tm_is_valid_dstat(union scsw *scsw); | |
167 | int scsw_tm_is_valid_cstat(union scsw *scsw); | |
168 | int scsw_tm_is_valid_fcxs(union scsw *scsw); | |
169 | int scsw_tm_is_valid_schxs(union scsw *scsw); | |
170 | int scsw_tm_is_solicited(union scsw *scsw); | |
171 | ||
1da177e4 LT |
172 | #define SCSW_FCTL_CLEAR_FUNC 0x1 |
173 | #define SCSW_FCTL_HALT_FUNC 0x2 | |
174 | #define SCSW_FCTL_START_FUNC 0x4 | |
175 | ||
176 | #define SCSW_ACTL_SUSPENDED 0x1 | |
177 | #define SCSW_ACTL_DEVACT 0x2 | |
178 | #define SCSW_ACTL_SCHACT 0x4 | |
179 | #define SCSW_ACTL_CLEAR_PEND 0x8 | |
180 | #define SCSW_ACTL_HALT_PEND 0x10 | |
181 | #define SCSW_ACTL_START_PEND 0x20 | |
182 | #define SCSW_ACTL_RESUME_PEND 0x40 | |
183 | ||
184 | #define SCSW_STCTL_STATUS_PEND 0x1 | |
185 | #define SCSW_STCTL_SEC_STATUS 0x2 | |
186 | #define SCSW_STCTL_PRIM_STATUS 0x4 | |
187 | #define SCSW_STCTL_INTER_STATUS 0x8 | |
188 | #define SCSW_STCTL_ALERT_STATUS 0x10 | |
189 | ||
190 | #define DEV_STAT_ATTENTION 0x80 | |
191 | #define DEV_STAT_STAT_MOD 0x40 | |
192 | #define DEV_STAT_CU_END 0x20 | |
193 | #define DEV_STAT_BUSY 0x10 | |
194 | #define DEV_STAT_CHN_END 0x08 | |
195 | #define DEV_STAT_DEV_END 0x04 | |
196 | #define DEV_STAT_UNIT_CHECK 0x02 | |
197 | #define DEV_STAT_UNIT_EXCEP 0x01 | |
198 | ||
199 | #define SCHN_STAT_PCI 0x80 | |
200 | #define SCHN_STAT_INCORR_LEN 0x40 | |
201 | #define SCHN_STAT_PROG_CHECK 0x20 | |
202 | #define SCHN_STAT_PROT_CHECK 0x10 | |
203 | #define SCHN_STAT_CHN_DATA_CHK 0x08 | |
204 | #define SCHN_STAT_CHN_CTRL_CHK 0x04 | |
205 | #define SCHN_STAT_INTF_CTRL_CHK 0x02 | |
206 | #define SCHN_STAT_CHAIN_CHECK 0x01 | |
207 | ||
208 | /* | |
209 | * architectured values for first sense byte | |
210 | */ | |
211 | #define SNS0_CMD_REJECT 0x80 | |
212 | #define SNS_CMD_REJECT SNS0_CMD_REJEC | |
213 | #define SNS0_INTERVENTION_REQ 0x40 | |
214 | #define SNS0_BUS_OUT_CHECK 0x20 | |
215 | #define SNS0_EQUIPMENT_CHECK 0x10 | |
216 | #define SNS0_DATA_CHECK 0x08 | |
217 | #define SNS0_OVERRUN 0x04 | |
218 | #define SNS0_INCOMPL_DOMAIN 0x01 | |
219 | ||
220 | /* | |
221 | * architectured values for second sense byte | |
222 | */ | |
223 | #define SNS1_PERM_ERR 0x80 | |
224 | #define SNS1_INV_TRACK_FORMAT 0x40 | |
225 | #define SNS1_EOC 0x20 | |
226 | #define SNS1_MESSAGE_TO_OPER 0x10 | |
227 | #define SNS1_NO_REC_FOUND 0x08 | |
228 | #define SNS1_FILE_PROTECTED 0x04 | |
229 | #define SNS1_WRITE_INHIBITED 0x02 | |
230 | #define SNS1_INPRECISE_END 0x01 | |
231 | ||
232 | /* | |
233 | * architectured values for third sense byte | |
234 | */ | |
235 | #define SNS2_REQ_INH_WRITE 0x80 | |
236 | #define SNS2_CORRECTABLE 0x40 | |
237 | #define SNS2_FIRST_LOG_ERR 0x20 | |
238 | #define SNS2_ENV_DATA_PRESENT 0x10 | |
239 | #define SNS2_INPRECISE_END 0x04 | |
240 | ||
b2ffd8e9 CH |
241 | /** |
242 | * struct ccw1 - channel command word | |
243 | * @cmd_code: command code | |
244 | * @flags: flags, like IDA adressing, etc. | |
245 | * @count: byte count | |
246 | * @cda: data address | |
247 | * | |
248 | * The ccw is the basic structure to build channel programs that perform | |
249 | * operations with the device or the control unit. Only Format-1 channel | |
250 | * command words are supported. | |
251 | */ | |
1da177e4 | 252 | struct ccw1 { |
b2ffd8e9 CH |
253 | __u8 cmd_code; |
254 | __u8 flags; | |
255 | __u16 count; | |
256 | __u32 cda; | |
1da177e4 LT |
257 | } __attribute__ ((packed,aligned(8))); |
258 | ||
259 | #define CCW_FLAG_DC 0x80 | |
260 | #define CCW_FLAG_CC 0x40 | |
261 | #define CCW_FLAG_SLI 0x20 | |
262 | #define CCW_FLAG_SKIP 0x10 | |
263 | #define CCW_FLAG_PCI 0x08 | |
264 | #define CCW_FLAG_IDA 0x04 | |
265 | #define CCW_FLAG_SUSPEND 0x02 | |
266 | ||
267 | #define CCW_CMD_READ_IPL 0x02 | |
268 | #define CCW_CMD_NOOP 0x03 | |
269 | #define CCW_CMD_BASIC_SENSE 0x04 | |
270 | #define CCW_CMD_TIC 0x08 | |
271 | #define CCW_CMD_STLCK 0x14 | |
272 | #define CCW_CMD_SENSE_PGID 0x34 | |
273 | #define CCW_CMD_SUSPEND_RECONN 0x5B | |
274 | #define CCW_CMD_RDC 0x64 | |
275 | #define CCW_CMD_RELEASE 0x94 | |
276 | #define CCW_CMD_SET_PGID 0xAF | |
277 | #define CCW_CMD_SENSE_ID 0xE4 | |
278 | #define CCW_CMD_DCTL 0xF3 | |
279 | ||
280 | #define SENSE_MAX_COUNT 0x20 | |
281 | ||
b2ffd8e9 CH |
282 | /** |
283 | * struct erw - extended report word | |
284 | * @res0: reserved | |
285 | * @auth: authorization check | |
286 | * @pvrf: path-verification-required flag | |
287 | * @cpt: channel-path timeout | |
288 | * @fsavf: failing storage address validity flag | |
289 | * @cons: concurrent sense | |
290 | * @scavf: secondary ccw address validity flag | |
291 | * @fsaf: failing storage address format | |
292 | * @scnt: sense count, if @cons == %1 | |
293 | * @res16: reserved | |
294 | */ | |
1da177e4 | 295 | struct erw { |
b2ffd8e9 CH |
296 | __u32 res0 : 3; |
297 | __u32 auth : 1; | |
298 | __u32 pvrf : 1; | |
299 | __u32 cpt : 1; | |
300 | __u32 fsavf : 1; | |
301 | __u32 cons : 1; | |
302 | __u32 scavf : 1; | |
303 | __u32 fsaf : 1; | |
304 | __u32 scnt : 6; | |
305 | __u32 res16 : 16; | |
1da177e4 LT |
306 | } __attribute__ ((packed)); |
307 | ||
b2ffd8e9 CH |
308 | /** |
309 | * struct sublog - subchannel logout area | |
310 | * @res0: reserved | |
311 | * @esf: extended status flags | |
312 | * @lpum: last path used mask | |
313 | * @arep: ancillary report | |
314 | * @fvf: field-validity flags | |
315 | * @sacc: storage access code | |
316 | * @termc: termination code | |
317 | * @devsc: device-status check | |
318 | * @serr: secondary error | |
319 | * @ioerr: i/o-error alert | |
320 | * @seqc: sequence code | |
1da177e4 LT |
321 | */ |
322 | struct sublog { | |
b2ffd8e9 CH |
323 | __u32 res0 : 1; |
324 | __u32 esf : 7; | |
325 | __u32 lpum : 8; | |
326 | __u32 arep : 1; | |
327 | __u32 fvf : 5; | |
328 | __u32 sacc : 2; | |
329 | __u32 termc : 2; | |
330 | __u32 devsc : 1; | |
331 | __u32 serr : 1; | |
332 | __u32 ioerr : 1; | |
333 | __u32 seqc : 3; | |
1da177e4 LT |
334 | } __attribute__ ((packed)); |
335 | ||
b2ffd8e9 CH |
336 | /** |
337 | * struct esw0 - Format 0 Extended Status Word (ESW) | |
338 | * @sublog: subchannel logout | |
339 | * @erw: extended report word | |
340 | * @faddr: failing storage address | |
341 | * @saddr: secondary ccw address | |
1da177e4 LT |
342 | */ |
343 | struct esw0 { | |
b2ffd8e9 CH |
344 | struct sublog sublog; |
345 | struct erw erw; | |
346 | __u32 faddr[2]; | |
347 | __u32 saddr; | |
1da177e4 LT |
348 | } __attribute__ ((packed)); |
349 | ||
b2ffd8e9 CH |
350 | /** |
351 | * struct esw1 - Format 1 Extended Status Word (ESW) | |
352 | * @zero0: reserved zeros | |
353 | * @lpum: last path used mask | |
354 | * @zero16: reserved zeros | |
355 | * @erw: extended report word | |
356 | * @zeros: three fullwords of zeros | |
1da177e4 LT |
357 | */ |
358 | struct esw1 { | |
b2ffd8e9 CH |
359 | __u8 zero0; |
360 | __u8 lpum; | |
361 | __u16 zero16; | |
362 | struct erw erw; | |
363 | __u32 zeros[3]; | |
1da177e4 LT |
364 | } __attribute__ ((packed)); |
365 | ||
b2ffd8e9 CH |
366 | /** |
367 | * struct esw2 - Format 2 Extended Status Word (ESW) | |
368 | * @zero0: reserved zeros | |
369 | * @lpum: last path used mask | |
370 | * @dcti: device-connect-time interval | |
371 | * @erw: extended report word | |
372 | * @zeros: three fullwords of zeros | |
1da177e4 LT |
373 | */ |
374 | struct esw2 { | |
b2ffd8e9 CH |
375 | __u8 zero0; |
376 | __u8 lpum; | |
377 | __u16 dcti; | |
378 | struct erw erw; | |
379 | __u32 zeros[3]; | |
1da177e4 LT |
380 | } __attribute__ ((packed)); |
381 | ||
b2ffd8e9 CH |
382 | /** |
383 | * struct esw3 - Format 3 Extended Status Word (ESW) | |
384 | * @zero0: reserved zeros | |
385 | * @lpum: last path used mask | |
386 | * @res: reserved | |
387 | * @erw: extended report word | |
388 | * @zeros: three fullwords of zeros | |
1da177e4 LT |
389 | */ |
390 | struct esw3 { | |
b2ffd8e9 CH |
391 | __u8 zero0; |
392 | __u8 lpum; | |
393 | __u16 res; | |
394 | struct erw erw; | |
395 | __u32 zeros[3]; | |
1da177e4 LT |
396 | } __attribute__ ((packed)); |
397 | ||
b2ffd8e9 CH |
398 | /** |
399 | * struct irb - interruption response block | |
400 | * @scsw: subchannel status word | |
401 | * @esw: extened status word, 4 formats | |
402 | * @ecw: extended control word | |
403 | * | |
404 | * The irb that is handed to the device driver when an interrupt occurs. For | |
405 | * solicited interrupts, the common I/O layer already performs checks whether | |
406 | * a field is valid; a field not being valid is always passed as %0. | |
407 | * If a unit check occured, @ecw may contain sense data; this is retrieved | |
408 | * by the common I/O layer itself if the device doesn't support concurrent | |
409 | * sense (so that the device driver never needs to perform basic sene itself). | |
410 | * For unsolicited interrupts, the irb is passed as-is (expect for sense data, | |
411 | * if applicable). | |
1da177e4 LT |
412 | */ |
413 | struct irb { | |
23d805b6 | 414 | union scsw scsw; |
b2ffd8e9 | 415 | union { |
1da177e4 LT |
416 | struct esw0 esw0; |
417 | struct esw1 esw1; | |
418 | struct esw2 esw2; | |
419 | struct esw3 esw3; | |
420 | } esw; | |
b2ffd8e9 | 421 | __u8 ecw[32]; |
1da177e4 LT |
422 | } __attribute__ ((packed,aligned(4))); |
423 | ||
b2ffd8e9 CH |
424 | /** |
425 | * struct ciw - command information word (CIW) layout | |
426 | * @et: entry type | |
427 | * @reserved: reserved bits | |
428 | * @ct: command type | |
429 | * @cmd: command code | |
430 | * @count: command count | |
1da177e4 LT |
431 | */ |
432 | struct ciw { | |
b2ffd8e9 CH |
433 | __u32 et : 2; |
434 | __u32 reserved : 2; | |
435 | __u32 ct : 4; | |
436 | __u32 cmd : 8; | |
437 | __u32 count : 16; | |
1da177e4 LT |
438 | } __attribute__ ((packed)); |
439 | ||
440 | #define CIW_TYPE_RCD 0x0 /* read configuration data */ | |
441 | #define CIW_TYPE_SII 0x1 /* set interface identifier */ | |
442 | #define CIW_TYPE_RNI 0x2 /* read node identifier */ | |
443 | ||
444 | /* | |
445 | * Flags used as input parameters for do_IO() | |
446 | */ | |
447 | #define DOIO_ALLOW_SUSPEND 0x0001 /* allow for channel prog. suspend */ | |
448 | #define DOIO_DENY_PREFETCH 0x0002 /* don't allow for CCW prefetch */ | |
449 | #define DOIO_SUPPRESS_INTER 0x0004 /* suppress intermediate inter. */ | |
450 | /* ... for suspended CCWs */ | |
451 | /* Device or subchannel gone. */ | |
452 | #define CIO_GONE 0x0001 | |
453 | /* No path to device. */ | |
454 | #define CIO_NO_PATH 0x0002 | |
455 | /* Device has appeared. */ | |
456 | #define CIO_OPER 0x0004 | |
457 | /* Sick revalidation of device. */ | |
458 | #define CIO_REVALIDATE 0x0008 | |
459 | ||
b2ffd8e9 CH |
460 | /** |
461 | * struct ccw_dev_id - unique identifier for ccw devices | |
462 | * @ssid: subchannel set id | |
463 | * @devno: device number | |
464 | * | |
465 | * This structure is not directly based on any hardware structure. The | |
466 | * hardware identifies a device by its device number and its subchannel, | |
467 | * which is in turn identified by its id. In order to get a unique identifier | |
468 | * for ccw devices across subchannel sets, @struct ccw_dev_id has been | |
469 | * introduced. | |
470 | */ | |
ff6b8ea6 MH |
471 | struct ccw_dev_id { |
472 | u8 ssid; | |
473 | u16 devno; | |
474 | }; | |
475 | ||
b2ffd8e9 CH |
476 | /** |
477 | * ccw_device_id_is_equal() - compare two ccw_dev_ids | |
478 | * @dev_id1: a ccw_dev_id | |
479 | * @dev_id2: another ccw_dev_id | |
480 | * Returns: | |
481 | * %1 if the two structures are equal field-by-field, | |
482 | * %0 if not. | |
483 | * Context: | |
484 | * any | |
485 | */ | |
78964268 CH |
486 | static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1, |
487 | struct ccw_dev_id *dev_id2) | |
488 | { | |
ce26a853 CH |
489 | if ((dev_id1->ssid == dev_id2->ssid) && |
490 | (dev_id1->devno == dev_id2->devno)) | |
491 | return 1; | |
492 | return 0; | |
78964268 CH |
493 | } |
494 | ||
1da177e4 LT |
495 | extern void wait_cons_dev(void); |
496 | ||
40154b82 PO |
497 | extern void css_schedule_reprobe(void); |
498 | ||
ff6b8ea6 MH |
499 | extern void reipl_ccw_dev(struct ccw_dev_id *id); |
500 | ||
6fc321fd HC |
501 | struct cio_iplinfo { |
502 | u16 devno; | |
503 | int is_qdio; | |
504 | }; | |
505 | ||
506 | extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo); | |
507 | ||
a806170e HC |
508 | /* Function from drivers/s390/cio/chsc.c */ |
509 | int chsc_sstpc(void *page, unsigned int op, u16 ctrl); | |
510 | int chsc_sstpi(void *page, void *result, size_t size); | |
511 | ||
1da177e4 LT |
512 | #endif |
513 | ||
514 | #endif |