summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/rtas.h
blob: 065ffd1b2f8adaef8369846531bf4e6f78159b57 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _POWERPC_RTAS_H
#define _POWERPC_RTAS_H
#ifdef __KERNEL__

#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <asm/page.h>
#include <asm/rtas-types.h>
#include <linux/time.h>
#include <linux/cpumask.h>

/*
 * Definitions for talking to the RTAS on CHRP machines.
 *
 * Copyright (C) 2001 Peter Bergner
 * Copyright (C) 2001 PPC 64 Team, IBM Corp
 */

enum rtas_function_index {
	RTAS_FNIDX__CHECK_EXCEPTION,
	RTAS_FNIDX__DISPLAY_CHARACTER,
	RTAS_FNIDX__EVENT_SCAN,
	RTAS_FNIDX__FREEZE_TIME_BASE,
	RTAS_FNIDX__GET_POWER_LEVEL,
	RTAS_FNIDX__GET_SENSOR_STATE,
	RTAS_FNIDX__GET_TERM_CHAR,
	RTAS_FNIDX__GET_TIME_OF_DAY,
	RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE,
	RTAS_FNIDX__IBM_CBE_START_PTCAL,
	RTAS_FNIDX__IBM_CBE_STOP_PTCAL,
	RTAS_FNIDX__IBM_CHANGE_MSI,
	RTAS_FNIDX__IBM_CLOSE_ERRINJCT,
	RTAS_FNIDX__IBM_CONFIGURE_BRIDGE,
	RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR,
	RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP,
	RTAS_FNIDX__IBM_CONFIGURE_PE,
	RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW,
	RTAS_FNIDX__IBM_DISPLAY_MESSAGE,
	RTAS_FNIDX__IBM_ERRINJCT,
	RTAS_FNIDX__IBM_EXTI2C,
	RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO,
	RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2,
	RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE,
	RTAS_FNIDX__IBM_GET_INDICES,
	RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY,
	RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER,
	RTAS_FNIDX__IBM_GET_VPD,
	RTAS_FNIDX__IBM_GET_XIVE,
	RTAS_FNIDX__IBM_INT_OFF,
	RTAS_FNIDX__IBM_INT_ON,
	RTAS_FNIDX__IBM_IO_QUIESCE_ACK,
	RTAS_FNIDX__IBM_LPAR_PERFTOOLS,
	RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE,
	RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION,
	RTAS_FNIDX__IBM_NMI_INTERLOCK,
	RTAS_FNIDX__IBM_NMI_REGISTER,
	RTAS_FNIDX__IBM_OPEN_ERRINJCT,
	RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE,
	RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER,
	RTAS_FNIDX__IBM_OS_TERM,
	RTAS_FNIDX__IBM_PARTNER_CONTROL,
	RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION,
	RTAS_FNIDX__IBM_PLATFORM_DUMP,
	RTAS_FNIDX__IBM_POWER_OFF_UPS,
	RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER,
	RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW,
	RTAS_FNIDX__IBM_READ_PCI_CONFIG,
	RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE,
	RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2,
	RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW,
	RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW,
	RTAS_FNIDX__IBM_SCAN_LOG_DUMP,
	RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR,
	RTAS_FNIDX__IBM_SET_EEH_OPTION,
	RTAS_FNIDX__IBM_SET_SLOT_RESET,
	RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER,
	RTAS_FNIDX__IBM_SET_XIVE,
	RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL,
	RTAS_FNIDX__IBM_SUSPEND_ME,
	RTAS_FNIDX__IBM_TUNE_DMA_PARMS,
	RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT,
	RTAS_FNIDX__IBM_UPDATE_NODES,
	RTAS_FNIDX__IBM_UPDATE_PROPERTIES,
	RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE,
	RTAS_FNIDX__IBM_WRITE_PCI_CONFIG,
	RTAS_FNIDX__NVRAM_FETCH,
	RTAS_FNIDX__NVRAM_STORE,
	RTAS_FNIDX__POWER_OFF,
	RTAS_FNIDX__PUT_TERM_CHAR,
	RTAS_FNIDX__QUERY_CPU_STOPPED_STATE,
	RTAS_FNIDX__READ_PCI_CONFIG,
	RTAS_FNIDX__RTAS_LAST_ERROR,
	RTAS_FNIDX__SET_INDICATOR,
	RTAS_FNIDX__SET_POWER_LEVEL,
	RTAS_FNIDX__SET_TIME_FOR_POWER_ON,
	RTAS_FNIDX__SET_TIME_OF_DAY,
	RTAS_FNIDX__START_CPU,
	RTAS_FNIDX__STOP_SELF,
	RTAS_FNIDX__SYSTEM_REBOOT,
	RTAS_FNIDX__THAW_TIME_BASE,
	RTAS_FNIDX__WRITE_PCI_CONFIG,
};

/*
 * Opaque handle for client code to refer to RTAS functions. All valid
 * function handles are build-time constants prefixed with RTAS_FN_.
 */
typedef struct {
	const enum rtas_function_index index;
} rtas_fn_handle_t;


#define rtas_fn_handle(x_) ((const rtas_fn_handle_t) { .index = x_, })

#define RTAS_FN_CHECK_EXCEPTION                   rtas_fn_handle(RTAS_FNIDX__CHECK_EXCEPTION)
#define RTAS_FN_DISPLAY_CHARACTER                 rtas_fn_handle(RTAS_FNIDX__DISPLAY_CHARACTER)
#define RTAS_FN_EVENT_SCAN                        rtas_fn_handle(RTAS_FNIDX__EVENT_SCAN)
#define RTAS_FN_FREEZE_TIME_BASE                  rtas_fn_handle(RTAS_FNIDX__FREEZE_TIME_BASE)
#define RTAS_FN_GET_POWER_LEVEL                   rtas_fn_handle(RTAS_FNIDX__GET_POWER_LEVEL)
#define RTAS_FN_GET_SENSOR_STATE                  rtas_fn_handle(RTAS_FNIDX__GET_SENSOR_STATE)
#define RTAS_FN_GET_TERM_CHAR                     rtas_fn_handle(RTAS_FNIDX__GET_TERM_CHAR)
#define RTAS_FN_GET_TIME_OF_DAY                   rtas_fn_handle(RTAS_FNIDX__GET_TIME_OF_DAY)
#define RTAS_FN_IBM_ACTIVATE_FIRMWARE             rtas_fn_handle(RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE)
#define RTAS_FN_IBM_CBE_START_PTCAL               rtas_fn_handle(RTAS_FNIDX__IBM_CBE_START_PTCAL)
#define RTAS_FN_IBM_CBE_STOP_PTCAL                rtas_fn_handle(RTAS_FNIDX__IBM_CBE_STOP_PTCAL)
#define RTAS_FN_IBM_CHANGE_MSI                    rtas_fn_handle(RTAS_FNIDX__IBM_CHANGE_MSI)
#define RTAS_FN_IBM_CLOSE_ERRINJCT                rtas_fn_handle(RTAS_FNIDX__IBM_CLOSE_ERRINJCT)
#define RTAS_FN_IBM_CONFIGURE_BRIDGE              rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_BRIDGE)
#define RTAS_FN_IBM_CONFIGURE_CONNECTOR           rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR)
#define RTAS_FN_IBM_CONFIGURE_KERNEL_DUMP         rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP)
#define RTAS_FN_IBM_CONFIGURE_PE                  rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_PE)
#define RTAS_FN_IBM_CREATE_PE_DMA_WINDOW          rtas_fn_handle(RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW)
#define RTAS_FN_IBM_DISPLAY_MESSAGE               rtas_fn_handle(RTAS_FNIDX__IBM_DISPLAY_MESSAGE)
#define RTAS_FN_IBM_ERRINJCT                      rtas_fn_handle(RTAS_FNIDX__IBM_ERRINJCT)
#define RTAS_FN_IBM_EXTI2C                        rtas_fn_handle(RTAS_FNIDX__IBM_EXTI2C)
#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO          rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO)
#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO2         rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2)
#define RTAS_FN_IBM_GET_DYNAMIC_SENSOR_STATE      rtas_fn_handle(RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE)
#define RTAS_FN_IBM_GET_INDICES                   rtas_fn_handle(RTAS_FNIDX__IBM_GET_INDICES)
#define RTAS_FN_IBM_GET_RIO_TOPOLOGY              rtas_fn_handle(RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY)
#define RTAS_FN_IBM_GET_SYSTEM_PARAMETER          rtas_fn_handle(RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER)
#define RTAS_FN_IBM_GET_VPD                       rtas_fn_handle(RTAS_FNIDX__IBM_GET_VPD)
#define RTAS_FN_IBM_GET_XIVE                      rtas_fn_handle(RTAS_FNIDX__IBM_GET_XIVE)
#define RTAS_FN_IBM_INT_OFF                       rtas_fn_handle(RTAS_FNIDX__IBM_INT_OFF)
#define RTAS_FN_IBM_INT_ON                        rtas_fn_handle(RTAS_FNIDX__IBM_INT_ON)
#define RTAS_FN_IBM_IO_QUIESCE_ACK                rtas_fn_handle(RTAS_FNIDX__IBM_IO_QUIESCE_ACK)
#define RTAS_FN_IBM_LPAR_PERFTOOLS                rtas_fn_handle(RTAS_FNIDX__IBM_LPAR_PERFTOOLS)
#define RTAS_FN_IBM_MANAGE_FLASH_IMAGE            rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE)
#define RTAS_FN_IBM_MANAGE_STORAGE_PRESERVATION   rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION)
#define RTAS_FN_IBM_NMI_INTERLOCK                 rtas_fn_handle(RTAS_FNIDX__IBM_NMI_INTERLOCK)
#define RTAS_FN_IBM_NMI_REGISTER                  rtas_fn_handle(RTAS_FNIDX__IBM_NMI_REGISTER)
#define RTAS_FN_IBM_OPEN_ERRINJCT                 rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_ERRINJCT)
#define RTAS_FN_IBM_OPEN_SRIOV_ALLOW_UNFREEZE     rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE)
#define RTAS_FN_IBM_OPEN_SRIOV_MAP_PE_NUMBER      rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER)
#define RTAS_FN_IBM_OS_TERM                       rtas_fn_handle(RTAS_FNIDX__IBM_OS_TERM)
#define RTAS_FN_IBM_PARTNER_CONTROL               rtas_fn_handle(RTAS_FNIDX__IBM_PARTNER_CONTROL)
#define RTAS_FN_IBM_PHYSICAL_ATTESTATION          rtas_fn_handle(RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION)
#define RTAS_FN_IBM_PLATFORM_DUMP                 rtas_fn_handle(RTAS_FNIDX__IBM_PLATFORM_DUMP)
#define RTAS_FN_IBM_POWER_OFF_UPS                 rtas_fn_handle(RTAS_FNIDX__IBM_POWER_OFF_UPS)
#define RTAS_FN_IBM_QUERY_INTERRUPT_SOURCE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER)
#define RTAS_FN_IBM_QUERY_PE_DMA_WINDOW           rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW)
#define RTAS_FN_IBM_READ_PCI_CONFIG               rtas_fn_handle(RTAS_FNIDX__IBM_READ_PCI_CONFIG)
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE         rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE)
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2        rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2)
#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW          rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW)
#define RTAS_FN_IBM_RESET_PE_DMA_WINDOW           rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW)
#define RTAS_FN_IBM_SCAN_LOG_DUMP                 rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP)
#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR         rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR)
#define RTAS_FN_IBM_SET_EEH_OPTION                rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION)
#define RTAS_FN_IBM_SET_SLOT_RESET                rtas_fn_handle(RTAS_FNIDX__IBM_SET_SLOT_RESET)
#define RTAS_FN_IBM_SET_SYSTEM_PARAMETER          rtas_fn_handle(RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER)
#define RTAS_FN_IBM_SET_XIVE                      rtas_fn_handle(RTAS_FNIDX__IBM_SET_XIVE)
#define RTAS_FN_IBM_SLOT_ERROR_DETAIL             rtas_fn_handle(RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL)
#define RTAS_FN_IBM_SUSPEND_ME                    rtas_fn_handle(RTAS_FNIDX__IBM_SUSPEND_ME)
#define RTAS_FN_IBM_TUNE_DMA_PARMS                rtas_fn_handle(RTAS_FNIDX__IBM_TUNE_DMA_PARMS)
#define RTAS_FN_IBM_UPDATE_FLASH_64_AND_REBOOT    rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT)
#define RTAS_FN_IBM_UPDATE_NODES                  rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_NODES)
#define RTAS_FN_IBM_UPDATE_PROPERTIES             rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_PROPERTIES)
#define RTAS_FN_IBM_VALIDATE_FLASH_IMAGE          rtas_fn_handle(RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE)
#define RTAS_FN_IBM_WRITE_PCI_CONFIG              rtas_fn_handle(RTAS_FNIDX__IBM_WRITE_PCI_CONFIG)
#define RTAS_FN_NVRAM_FETCH                       rtas_fn_handle(RTAS_FNIDX__NVRAM_FETCH)
#define RTAS_FN_NVRAM_STORE                       rtas_fn_handle(RTAS_FNIDX__NVRAM_STORE)
#define RTAS_FN_POWER_OFF                         rtas_fn_handle(RTAS_FNIDX__POWER_OFF)
#define RTAS_FN_PUT_TERM_CHAR                     rtas_fn_handle(RTAS_FNIDX__PUT_TERM_CHAR)
#define RTAS_FN_QUERY_CPU_STOPPED_STATE           rtas_fn_handle(RTAS_FNIDX__QUERY_CPU_STOPPED_STATE)
#define RTAS_FN_READ_PCI_CONFIG                   rtas_fn_handle(RTAS_FNIDX__READ_PCI_CONFIG)
#define RTAS_FN_RTAS_LAST_ERROR                   rtas_fn_handle(RTAS_FNIDX__RTAS_LAST_ERROR)
#define RTAS_FN_SET_INDICATOR                     rtas_fn_handle(RTAS_FNIDX__SET_INDICATOR)
#define RTAS_FN_SET_POWER_LEVEL                   rtas_fn_handle(RTAS_FNIDX__SET_POWER_LEVEL)
#define RTAS_FN_SET_TIME_FOR_POWER_ON             rtas_fn_handle(RTAS_FNIDX__SET_TIME_FOR_POWER_ON)
#define RTAS_FN_SET_TIME_OF_DAY                   rtas_fn_handle(RTAS_FNIDX__SET_TIME_OF_DAY)
#define RTAS_FN_START_CPU                         rtas_fn_handle(RTAS_FNIDX__START_CPU)
#define RTAS_FN_STOP_SELF                         rtas_fn_handle(RTAS_FNIDX__STOP_SELF)
#define RTAS_FN_SYSTEM_REBOOT                     rtas_fn_handle(RTAS_FNIDX__SYSTEM_REBOOT)
#define RTAS_FN_THAW_TIME_BASE                    rtas_fn_handle(RTAS_FNIDX__THAW_TIME_BASE)
#define RTAS_FN_WRITE_PCI_CONFIG                  rtas_fn_handle(RTAS_FNIDX__WRITE_PCI_CONFIG)

#define RTAS_UNKNOWN_SERVICE (-1)
#define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */

/* Memory set aside for sys_rtas to use with calls that need a work area. */
#define RTAS_USER_REGION_SIZE (64 * 1024)

/*
 * Common RTAS function return values, derived from the table "RTAS
 * Status Word Values" in PAPR+ v2.13 7.2.8: "Return Codes". If a
 * function can return a value in this table then generally it has the
 * meaning listed here. More extended commentary in the documentation
 * for rtas_call().
 *
 * RTAS functions may use negative and positive numbers not in this
 * set for function-specific error and success conditions,
 * respectively.
 */
#define RTAS_SUCCESS                     0 /* Success. */
#define RTAS_HARDWARE_ERROR             -1 /* Hardware or other unspecified error. */
#define RTAS_BUSY                       -2 /* Retry immediately. */
#define RTAS_INVALID_PARAMETER          -3 /* Invalid indicator/domain/sensor etc. */
#define RTAS_UNEXPECTED_STATE_CHANGE    -7 /* Seems limited to EEH and slot reset. */
#define RTAS_EXTENDED_DELAY_MIN       9900 /* Retry after delaying for ~1ms. */
#define RTAS_EXTENDED_DELAY_MAX       9905 /* Retry after delaying for ~100s. */
#define RTAS_ML_ISOLATION_ERROR      -9000 /* Multi-level isolation error. */

/* statuses specific to ibm,suspend-me */
#define RTAS_SUSPEND_ABORTED     9000 /* Suspension aborted */
#define RTAS_NOT_SUSPENDABLE    -9004 /* Partition not suspendable */
#define RTAS_THREADS_ACTIVE     -9005 /* Multiple processor threads active */
#define RTAS_OUTSTANDING_COPROC -9006 /* Outstanding coprocessor operations */

/* RTAS event classes */
#define RTAS_INTERNAL_ERROR		0x80000000 /* set bit 0 */
#define RTAS_EPOW_WARNING		0x40000000 /* set bit 1 */
#define RTAS_HOTPLUG_EVENTS		0x10000000 /* set bit 3 */
#define RTAS_IO_EVENTS			0x08000000 /* set bit 4 */
#define RTAS_EVENT_SCAN_ALL_EVENTS	0xffffffff

/* RTAS event severity */
#define RTAS_SEVERITY_FATAL		0x5
#define RTAS_SEVERITY_ERROR		0x4
#define RTAS_SEVERITY_ERROR_SYNC	0x3
#define RTAS_SEVERITY_WARNING		0x2
#define RTAS_SEVERITY_EVENT		0x1
#define RTAS_SEVERITY_NO_ERROR		0x0

/* RTAS event disposition */
#define RTAS_DISP_FULLY_RECOVERED	0x0
#define RTAS_DISP_LIMITED_RECOVERY	0x1
#define RTAS_DISP_NOT_RECOVERED		0x2

/* RTAS event initiator */
#define RTAS_INITIATOR_UNKNOWN		0x0
#define RTAS_INITIATOR_CPU		0x1
#define RTAS_INITIATOR_PCI		0x2
#define RTAS_INITIATOR_ISA		0x3
#define RTAS_INITIATOR_MEMORY		0x4
#define RTAS_INITIATOR_POWERMGM		0x5

/* RTAS event target */
#define RTAS_TARGET_UNKNOWN		0x0
#define RTAS_TARGET_CPU			0x1
#define RTAS_TARGET_PCI			0x2
#define RTAS_TARGET_ISA			0x3
#define RTAS_TARGET_MEMORY		0x4
#define RTAS_TARGET_POWERMGM		0x5

/* RTAS event type */
#define RTAS_TYPE_RETRY			0x01
#define RTAS_TYPE_TCE_ERR		0x02
#define RTAS_TYPE_INTERN_DEV_FAIL	0x03
#define RTAS_TYPE_TIMEOUT		0x04
#define RTAS_TYPE_DATA_PARITY		0x05
#define RTAS_TYPE_ADDR_PARITY		0x06
#define RTAS_TYPE_CACHE_PARITY		0x07
#define RTAS_TYPE_ADDR_INVALID		0x08
#define RTAS_TYPE_ECC_UNCORR		0x09
#define RTAS_TYPE_ECC_CORR		0x0a
#define RTAS_TYPE_EPOW			0x40
#define RTAS_TYPE_PLATFORM		0xE0
#define RTAS_TYPE_IO			0xE1
#define RTAS_TYPE_INFO			0xE2
#define RTAS_TYPE_DEALLOC		0xE3
#define RTAS_TYPE_DUMP			0xE4
#define RTAS_TYPE_HOTPLUG		0xE5
/* I don't add PowerMGM events right now, this is a different topic */
#define RTAS_TYPE_PMGM_POWER_SW_ON	0x60
#define RTAS_TYPE_PMGM_POWER_SW_OFF	0x61
#define RTAS_TYPE_PMGM_LID_OPEN		0x62
#define RTAS_TYPE_PMGM_LID_CLOSE	0x63
#define RTAS_TYPE_PMGM_SLEEP_BTN	0x64
#define RTAS_TYPE_PMGM_WAKE_BTN		0x65
#define RTAS_TYPE_PMGM_BATTERY_WARN	0x66
#define RTAS_TYPE_PMGM_BATTERY_CRIT	0x67
#define RTAS_TYPE_PMGM_SWITCH_TO_BAT	0x68
#define RTAS_TYPE_PMGM_SWITCH_TO_AC	0x69
#define RTAS_TYPE_PMGM_KBD_OR_MOUSE	0x6a
#define RTAS_TYPE_PMGM_ENCLOS_OPEN	0x6b
#define RTAS_TYPE_PMGM_ENCLOS_CLOSED	0x6c
#define RTAS_TYPE_PMGM_RING_INDICATE	0x6d
#define RTAS_TYPE_PMGM_LAN_ATTENTION	0x6e
#define RTAS_TYPE_PMGM_TIME_ALARM	0x6f
#define RTAS_TYPE_PMGM_CONFIG_CHANGE	0x70
#define RTAS_TYPE_PMGM_SERVICE_PROC	0x71
/* Platform Resource Reassignment Notification */
#define RTAS_TYPE_PRRN			0xA0

/* RTAS check-exception vector offset */
#define RTAS_VECTOR_EXTERNAL_INTERRUPT	0x500

static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
{
	return (elog->byte1 & 0xE0) >> 5;
}

static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
{
	return (elog->byte1 & 0x18) >> 3;
}

static inline
void rtas_set_disposition_recovered(struct rtas_error_log *elog)
{
	elog->byte1 &= ~0x18;
	elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
}

static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
{
	return (elog->byte1 & 0x04) >> 2;
}

static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
{
	return (elog->byte2 & 0xf0) >> 4;
}

#define rtas_error_type(x)	((x)->byte3)

static inline
uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
{
	return be32_to_cpu(elog->extended_log_length);
}

#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG	14

#define RTAS_V6EXT_COMPANY_ID_IBM	(('I' << 24) | ('B' << 16) | ('M' << 8))

static
inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
{
	return ext_log->byte2 & 0x0F;
}

static
inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
{
	return be32_to_cpu(ext_log->company_id);
}

/* pSeries event log format */

/* Two bytes ASCII section IDs */
#define PSERIES_ELOG_SECT_ID_PRIV_HDR		(('P' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_USER_HDR		(('U' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_PRIMARY_SRC	(('P' << 8) | 'S')
#define PSERIES_ELOG_SECT_ID_EXTENDED_UH	(('E' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_FAILING_MTMS	(('M' << 8) | 'T')
#define PSERIES_ELOG_SECT_ID_SECONDARY_SRC	(('S' << 8) | 'S')
#define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR	(('D' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_FW_ERROR		(('S' << 8) | 'W')
#define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID	(('L' << 8) | 'P')
#define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID	(('L' << 8) | 'R')
#define PSERIES_ELOG_SECT_ID_HMC_ID		(('H' << 8) | 'M')
#define PSERIES_ELOG_SECT_ID_EPOW		(('E' << 8) | 'P')
#define PSERIES_ELOG_SECT_ID_IO_EVENT		(('I' << 8) | 'E')
#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO	(('M' << 8) | 'I')
#define PSERIES_ELOG_SECT_ID_CALL_HOME		(('C' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_USER_DEF		(('U' << 8) | 'D')
#define PSERIES_ELOG_SECT_ID_HOTPLUG		(('H' << 8) | 'P')
#define PSERIES_ELOG_SECT_ID_MCE		(('M' << 8) | 'C')

static
inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
{
	return be16_to_cpu(sect->id);
}

static
inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
{
	return be16_to_cpu(sect->length);
}

#define PSERIES_HP_ELOG_RESOURCE_CPU	1
#define PSERIES_HP_ELOG_RESOURCE_MEM	2
#define PSERIES_HP_ELOG_RESOURCE_SLOT	3
#define PSERIES_HP_ELOG_RESOURCE_PHB	4
#define PSERIES_HP_ELOG_RESOURCE_PMEM   6

#define PSERIES_HP_ELOG_ACTION_ADD	1
#define PSERIES_HP_ELOG_ACTION_REMOVE	2

#define PSERIES_HP_ELOG_ID_DRC_NAME	1
#define PSERIES_HP_ELOG_ID_DRC_INDEX	2
#define PSERIES_HP_ELOG_ID_DRC_COUNT	3
#define PSERIES_HP_ELOG_ID_DRC_IC	4

struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
					      uint16_t section_id);

/*
 * This can be set by the rtas_flash module so that it can get called
 * as the absolutely last thing before the kernel terminates.
 */
extern void (*rtas_flash_term_hook)(int);

extern struct rtas_t rtas;

s32 rtas_function_token(const rtas_fn_handle_t handle);
static inline bool rtas_function_implemented(const rtas_fn_handle_t handle)
{
	return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE;
}
int rtas_token(const char *service);
int rtas_call(int token, int nargs, int nret, int *outputs, ...);
void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
			int nret, ...);
void __noreturn rtas_restart(char *cmd);
void rtas_power_off(void);
void __noreturn rtas_halt(void);
void rtas_os_term(char *str);
void rtas_activate_firmware(void);
int rtas_get_sensor(int sensor, int index, int *state);
int rtas_get_sensor_fast(int sensor, int index, int *state);
int rtas_get_power_level(int powerdomain, int *level);
int rtas_set_power_level(int powerdomain, int level, int *setlevel);
bool rtas_indicator_present(int token, int *maxindex);
int rtas_set_indicator(int indicator, int index, int new_value);
int rtas_set_indicator_fast(int indicator, int index, int new_value);
void rtas_progress(char *s, unsigned short hex);
int rtas_ibm_suspend_me(int *fw_status);
int rtas_error_rc(int rtas_rc);

struct rtc_time;
time64_t rtas_get_boot_time(void);
void rtas_get_rtc_time(struct rtc_time *rtc_time);
int rtas_set_rtc_time(struct rtc_time *rtc_time);

unsigned int rtas_busy_delay_time(int status);
bool rtas_busy_delay(int status);

int early_init_dt_scan_rtas(unsigned long node, const char *uname, int depth, void *data);

void pSeries_log_error(char *buf, unsigned int err_type, int fatal);

#ifdef CONFIG_PPC_PSERIES
extern time64_t last_rtas_event;
int clobbering_unread_rtas_event(void);
int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
#else
static inline int clobbering_unread_rtas_event(void) { return 0; }
static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
{
	return -EINVAL;
}
#endif

#ifdef CONFIG_PPC_RTAS_DAEMON
void rtas_cancel_event_scan(void);
#else
static inline void rtas_cancel_event_scan(void) { }
#endif

/* Error types logged.  */
#define ERR_FLAG_ALREADY_LOGGED	0x0
#define ERR_FLAG_BOOT		0x1	/* log was pulled from NVRAM on boot */
#define ERR_TYPE_RTAS_LOG	0x2	/* from rtas event-scan */
#define ERR_TYPE_KERNEL_PANIC	0x4	/* from die()/panic() */
#define ERR_TYPE_KERNEL_PANIC_GZ 0x8	/* ditto, compressed */

/* All the types and not flags */
#define ERR_TYPE_MASK \
	(ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)

#define RTAS_DEBUG KERN_DEBUG "RTAS: "

#define RTAS_ERROR_LOG_MAX 2048

/*
 * Return the firmware-specified size of the error log buffer
 *  for all rtas calls that require an error buffer argument.
 *  This includes 'check-exception' and 'rtas-last-error'.
 */
int rtas_get_error_log_max(void);

/* Event Scan Parameters */
#define EVENT_SCAN_ALL_EVENTS	0xf0000000
#define SURVEILLANCE_TOKEN	9000
#define LOG_NUMBER		64		/* must be a power of two */
#define LOG_NUMBER_MASK		(LOG_NUMBER-1)

/* Some RTAS ops require a data buffer and that buffer must be < 4G.
 * Rather than having a memory allocator, just use this buffer
 * (get the lock first), make the RTAS call.  Copy the data instead
 * of holding the buffer for long.
 */

#define RTAS_DATA_BUF_SIZE 4096
extern spinlock_t rtas_data_buf_lock;
extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];

/* RMO buffer reserved for user-space RTAS use */
extern unsigned long rtas_rmo_buf;

extern struct mutex rtas_ibm_get_vpd_lock;

#define GLOBAL_INTERRUPT_QUEUE 9005

/**
 * rtas_config_addr - Format a busno, devfn and reg for RTAS.
 * @busno: The bus number.
 * @devfn: The device and function number as encoded by PCI_DEVFN().
 * @reg: The register number.
 *
 * This function encodes the given busno, devfn and register number as
 * required for RTAS calls that take a "config_addr" parameter.
 * See PAPR requirement 7.3.4-1 for more info.
 */
static inline u32 rtas_config_addr(int busno, int devfn, int reg)
{
	return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
			(devfn << 8) | (reg & 0xff);
}

void rtas_give_timebase(void);
void rtas_take_timebase(void);

#ifdef CONFIG_PPC_RTAS
static inline int page_is_rtas_user_buf(unsigned long pfn)
{
	unsigned long paddr = (pfn << PAGE_SHIFT);
	if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE))
		return 1;
	return 0;
}

/* Not the best place to put pSeries_coalesce_init, will be fixed when we
 * move some of the rtas suspend-me stuff to pseries */
void pSeries_coalesce_init(void);
void rtas_initialize(void);
#else
static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
static inline void pSeries_coalesce_init(void) { }
static inline void rtas_initialize(void) { }
#endif

#ifdef CONFIG_HV_PERF_CTRS
void read_24x7_sys_info(void);
#else
static inline void read_24x7_sys_info(void) { }
#endif

#endif /* __KERNEL__ */
#endif /* _POWERPC_RTAS_H */