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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef _POWERPC_RTAS_H
3#define _POWERPC_RTAS_H
4#ifdef __KERNEL__
5
6#include <linux/spinlock.h>
7#include <asm/page.h>
8#include <asm/rtas-types.h>
9#include <linux/time.h>
10#include <linux/cpumask.h>
11
12/*
13 * Definitions for talking to the RTAS on CHRP machines.
14 *
15 * Copyright (C) 2001 Peter Bergner
16 * Copyright (C) 2001 PPC 64 Team, IBM Corp
17 */
18
19enum rtas_function_index {
20 RTAS_FNIDX__CHECK_EXCEPTION,
21 RTAS_FNIDX__DISPLAY_CHARACTER,
22 RTAS_FNIDX__EVENT_SCAN,
23 RTAS_FNIDX__FREEZE_TIME_BASE,
24 RTAS_FNIDX__GET_POWER_LEVEL,
25 RTAS_FNIDX__GET_SENSOR_STATE,
26 RTAS_FNIDX__GET_TERM_CHAR,
27 RTAS_FNIDX__GET_TIME_OF_DAY,
28 RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE,
29 RTAS_FNIDX__IBM_CBE_START_PTCAL,
30 RTAS_FNIDX__IBM_CBE_STOP_PTCAL,
31 RTAS_FNIDX__IBM_CHANGE_MSI,
32 RTAS_FNIDX__IBM_CLOSE_ERRINJCT,
33 RTAS_FNIDX__IBM_CONFIGURE_BRIDGE,
34 RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR,
35 RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP,
36 RTAS_FNIDX__IBM_CONFIGURE_PE,
37 RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW,
38 RTAS_FNIDX__IBM_DISPLAY_MESSAGE,
39 RTAS_FNIDX__IBM_ERRINJCT,
40 RTAS_FNIDX__IBM_EXTI2C,
41 RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO,
42 RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2,
43 RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE,
44 RTAS_FNIDX__IBM_GET_INDICES,
45 RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY,
46 RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER,
47 RTAS_FNIDX__IBM_GET_VPD,
48 RTAS_FNIDX__IBM_GET_XIVE,
49 RTAS_FNIDX__IBM_INT_OFF,
50 RTAS_FNIDX__IBM_INT_ON,
51 RTAS_FNIDX__IBM_IO_QUIESCE_ACK,
52 RTAS_FNIDX__IBM_LPAR_PERFTOOLS,
53 RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE,
54 RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION,
55 RTAS_FNIDX__IBM_NMI_INTERLOCK,
56 RTAS_FNIDX__IBM_NMI_REGISTER,
57 RTAS_FNIDX__IBM_OPEN_ERRINJCT,
58 RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE,
59 RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER,
60 RTAS_FNIDX__IBM_OS_TERM,
61 RTAS_FNIDX__IBM_PARTNER_CONTROL,
62 RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION,
63 RTAS_FNIDX__IBM_PLATFORM_DUMP,
64 RTAS_FNIDX__IBM_POWER_OFF_UPS,
65 RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER,
66 RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW,
67 RTAS_FNIDX__IBM_READ_PCI_CONFIG,
68 RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE,
69 RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2,
70 RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW,
71 RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOWS,
72 RTAS_FNIDX__IBM_SCAN_LOG_DUMP,
73 RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR,
74 RTAS_FNIDX__IBM_SET_EEH_OPTION,
75 RTAS_FNIDX__IBM_SET_SLOT_RESET,
76 RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER,
77 RTAS_FNIDX__IBM_SET_XIVE,
78 RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL,
79 RTAS_FNIDX__IBM_SUSPEND_ME,
80 RTAS_FNIDX__IBM_TUNE_DMA_PARMS,
81 RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT,
82 RTAS_FNIDX__IBM_UPDATE_NODES,
83 RTAS_FNIDX__IBM_UPDATE_PROPERTIES,
84 RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE,
85 RTAS_FNIDX__IBM_WRITE_PCI_CONFIG,
86 RTAS_FNIDX__NVRAM_FETCH,
87 RTAS_FNIDX__NVRAM_STORE,
88 RTAS_FNIDX__POWER_OFF,
89 RTAS_FNIDX__PUT_TERM_CHAR,
90 RTAS_FNIDX__QUERY_CPU_STOPPED_STATE,
91 RTAS_FNIDX__READ_PCI_CONFIG,
92 RTAS_FNIDX__RTAS_LAST_ERROR,
93 RTAS_FNIDX__SET_INDICATOR,
94 RTAS_FNIDX__SET_POWER_LEVEL,
95 RTAS_FNIDX__SET_TIME_FOR_POWER_ON,
96 RTAS_FNIDX__SET_TIME_OF_DAY,
97 RTAS_FNIDX__START_CPU,
98 RTAS_FNIDX__STOP_SELF,
99 RTAS_FNIDX__SYSTEM_REBOOT,
100 RTAS_FNIDX__THAW_TIME_BASE,
101 RTAS_FNIDX__WRITE_PCI_CONFIG,
102};
103
104/*
105 * Opaque handle for client code to refer to RTAS functions. All valid
106 * function handles are build-time constants prefixed with RTAS_FN_.
107 */
108typedef struct {
109 const enum rtas_function_index index;
110} rtas_fn_handle_t;
111
112
113#define rtas_fn_handle(x_) ((const rtas_fn_handle_t) { .index = x_, })
114
115#define RTAS_FN_CHECK_EXCEPTION rtas_fn_handle(RTAS_FNIDX__CHECK_EXCEPTION)
116#define RTAS_FN_DISPLAY_CHARACTER rtas_fn_handle(RTAS_FNIDX__DISPLAY_CHARACTER)
117#define RTAS_FN_EVENT_SCAN rtas_fn_handle(RTAS_FNIDX__EVENT_SCAN)
118#define RTAS_FN_FREEZE_TIME_BASE rtas_fn_handle(RTAS_FNIDX__FREEZE_TIME_BASE)
119#define RTAS_FN_GET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__GET_POWER_LEVEL)
120#define RTAS_FN_GET_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__GET_SENSOR_STATE)
121#define RTAS_FN_GET_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__GET_TERM_CHAR)
122#define RTAS_FN_GET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__GET_TIME_OF_DAY)
123#define RTAS_FN_IBM_ACTIVATE_FIRMWARE rtas_fn_handle(RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE)
124#define RTAS_FN_IBM_CBE_START_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_START_PTCAL)
125#define RTAS_FN_IBM_CBE_STOP_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_STOP_PTCAL)
126#define RTAS_FN_IBM_CHANGE_MSI rtas_fn_handle(RTAS_FNIDX__IBM_CHANGE_MSI)
127#define RTAS_FN_IBM_CLOSE_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_CLOSE_ERRINJCT)
128#define RTAS_FN_IBM_CONFIGURE_BRIDGE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_BRIDGE)
129#define RTAS_FN_IBM_CONFIGURE_CONNECTOR rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR)
130#define RTAS_FN_IBM_CONFIGURE_KERNEL_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP)
131#define RTAS_FN_IBM_CONFIGURE_PE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_PE)
132#define RTAS_FN_IBM_CREATE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW)
133#define RTAS_FN_IBM_DISPLAY_MESSAGE rtas_fn_handle(RTAS_FNIDX__IBM_DISPLAY_MESSAGE)
134#define RTAS_FN_IBM_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_ERRINJCT)
135#define RTAS_FN_IBM_EXTI2C rtas_fn_handle(RTAS_FNIDX__IBM_EXTI2C)
136#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO)
137#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO2 rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2)
138#define RTAS_FN_IBM_GET_DYNAMIC_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE)
139#define RTAS_FN_IBM_GET_INDICES rtas_fn_handle(RTAS_FNIDX__IBM_GET_INDICES)
140#define RTAS_FN_IBM_GET_RIO_TOPOLOGY rtas_fn_handle(RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY)
141#define RTAS_FN_IBM_GET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER)
142#define RTAS_FN_IBM_GET_VPD rtas_fn_handle(RTAS_FNIDX__IBM_GET_VPD)
143#define RTAS_FN_IBM_GET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_GET_XIVE)
144#define RTAS_FN_IBM_INT_OFF rtas_fn_handle(RTAS_FNIDX__IBM_INT_OFF)
145#define RTAS_FN_IBM_INT_ON rtas_fn_handle(RTAS_FNIDX__IBM_INT_ON)
146#define RTAS_FN_IBM_IO_QUIESCE_ACK rtas_fn_handle(RTAS_FNIDX__IBM_IO_QUIESCE_ACK)
147#define RTAS_FN_IBM_LPAR_PERFTOOLS rtas_fn_handle(RTAS_FNIDX__IBM_LPAR_PERFTOOLS)
148#define RTAS_FN_IBM_MANAGE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE)
149#define RTAS_FN_IBM_MANAGE_STORAGE_PRESERVATION rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION)
150#define RTAS_FN_IBM_NMI_INTERLOCK rtas_fn_handle(RTAS_FNIDX__IBM_NMI_INTERLOCK)
151#define RTAS_FN_IBM_NMI_REGISTER rtas_fn_handle(RTAS_FNIDX__IBM_NMI_REGISTER)
152#define RTAS_FN_IBM_OPEN_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_ERRINJCT)
153#define RTAS_FN_IBM_OPEN_SRIOV_ALLOW_UNFREEZE rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE)
154#define RTAS_FN_IBM_OPEN_SRIOV_MAP_PE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER)
155#define RTAS_FN_IBM_OS_TERM rtas_fn_handle(RTAS_FNIDX__IBM_OS_TERM)
156#define RTAS_FN_IBM_PARTNER_CONTROL rtas_fn_handle(RTAS_FNIDX__IBM_PARTNER_CONTROL)
157#define RTAS_FN_IBM_PHYSICAL_ATTESTATION rtas_fn_handle(RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION)
158#define RTAS_FN_IBM_PLATFORM_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_PLATFORM_DUMP)
159#define RTAS_FN_IBM_POWER_OFF_UPS rtas_fn_handle(RTAS_FNIDX__IBM_POWER_OFF_UPS)
160#define RTAS_FN_IBM_QUERY_INTERRUPT_SOURCE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER)
161#define RTAS_FN_IBM_QUERY_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW)
162#define RTAS_FN_IBM_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_READ_PCI_CONFIG)
163#define RTAS_FN_IBM_READ_SLOT_RESET_STATE rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE)
164#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2 rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2)
165#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW)
166#define RTAS_FN_IBM_RESET_PE_DMA_WINDOWS rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOWS)
167#define RTAS_FN_IBM_SCAN_LOG_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP)
168#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR)
169#define RTAS_FN_IBM_SET_EEH_OPTION rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION)
170#define RTAS_FN_IBM_SET_SLOT_RESET rtas_fn_handle(RTAS_FNIDX__IBM_SET_SLOT_RESET)
171#define RTAS_FN_IBM_SET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER)
172#define RTAS_FN_IBM_SET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_SET_XIVE)
173#define RTAS_FN_IBM_SLOT_ERROR_DETAIL rtas_fn_handle(RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL)
174#define RTAS_FN_IBM_SUSPEND_ME rtas_fn_handle(RTAS_FNIDX__IBM_SUSPEND_ME)
175#define RTAS_FN_IBM_TUNE_DMA_PARMS rtas_fn_handle(RTAS_FNIDX__IBM_TUNE_DMA_PARMS)
176#define RTAS_FN_IBM_UPDATE_FLASH_64_AND_REBOOT rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT)
177#define RTAS_FN_IBM_UPDATE_NODES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_NODES)
178#define RTAS_FN_IBM_UPDATE_PROPERTIES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_PROPERTIES)
179#define RTAS_FN_IBM_VALIDATE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE)
180#define RTAS_FN_IBM_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_WRITE_PCI_CONFIG)
181#define RTAS_FN_NVRAM_FETCH rtas_fn_handle(RTAS_FNIDX__NVRAM_FETCH)
182#define RTAS_FN_NVRAM_STORE rtas_fn_handle(RTAS_FNIDX__NVRAM_STORE)
183#define RTAS_FN_POWER_OFF rtas_fn_handle(RTAS_FNIDX__POWER_OFF)
184#define RTAS_FN_PUT_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__PUT_TERM_CHAR)
185#define RTAS_FN_QUERY_CPU_STOPPED_STATE rtas_fn_handle(RTAS_FNIDX__QUERY_CPU_STOPPED_STATE)
186#define RTAS_FN_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__READ_PCI_CONFIG)
187#define RTAS_FN_RTAS_LAST_ERROR rtas_fn_handle(RTAS_FNIDX__RTAS_LAST_ERROR)
188#define RTAS_FN_SET_INDICATOR rtas_fn_handle(RTAS_FNIDX__SET_INDICATOR)
189#define RTAS_FN_SET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__SET_POWER_LEVEL)
190#define RTAS_FN_SET_TIME_FOR_POWER_ON rtas_fn_handle(RTAS_FNIDX__SET_TIME_FOR_POWER_ON)
191#define RTAS_FN_SET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__SET_TIME_OF_DAY)
192#define RTAS_FN_START_CPU rtas_fn_handle(RTAS_FNIDX__START_CPU)
193#define RTAS_FN_STOP_SELF rtas_fn_handle(RTAS_FNIDX__STOP_SELF)
194#define RTAS_FN_SYSTEM_REBOOT rtas_fn_handle(RTAS_FNIDX__SYSTEM_REBOOT)
195#define RTAS_FN_THAW_TIME_BASE rtas_fn_handle(RTAS_FNIDX__THAW_TIME_BASE)
196#define RTAS_FN_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__WRITE_PCI_CONFIG)
197
198#define RTAS_UNKNOWN_SERVICE (-1)
199#define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */
200
201/* Memory set aside for sys_rtas to use with calls that need a work area. */
202#define RTAS_USER_REGION_SIZE (64 * 1024)
203
204/* RTAS return status codes */
205#define RTAS_BUSY -2 /* RTAS Busy */
206#define RTAS_EXTENDED_DELAY_MIN 9900
207#define RTAS_EXTENDED_DELAY_MAX 9905
208
209/* statuses specific to ibm,suspend-me */
210#define RTAS_SUSPEND_ABORTED 9000 /* Suspension aborted */
211#define RTAS_NOT_SUSPENDABLE -9004 /* Partition not suspendable */
212#define RTAS_THREADS_ACTIVE -9005 /* Multiple processor threads active */
213#define RTAS_OUTSTANDING_COPROC -9006 /* Outstanding coprocessor operations */
214
215/* RTAS event classes */
216#define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */
217#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */
218#define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */
219#define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */
220#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff
221
222/* RTAS event severity */
223#define RTAS_SEVERITY_FATAL 0x5
224#define RTAS_SEVERITY_ERROR 0x4
225#define RTAS_SEVERITY_ERROR_SYNC 0x3
226#define RTAS_SEVERITY_WARNING 0x2
227#define RTAS_SEVERITY_EVENT 0x1
228#define RTAS_SEVERITY_NO_ERROR 0x0
229
230/* RTAS event disposition */
231#define RTAS_DISP_FULLY_RECOVERED 0x0
232#define RTAS_DISP_LIMITED_RECOVERY 0x1
233#define RTAS_DISP_NOT_RECOVERED 0x2
234
235/* RTAS event initiator */
236#define RTAS_INITIATOR_UNKNOWN 0x0
237#define RTAS_INITIATOR_CPU 0x1
238#define RTAS_INITIATOR_PCI 0x2
239#define RTAS_INITIATOR_ISA 0x3
240#define RTAS_INITIATOR_MEMORY 0x4
241#define RTAS_INITIATOR_POWERMGM 0x5
242
243/* RTAS event target */
244#define RTAS_TARGET_UNKNOWN 0x0
245#define RTAS_TARGET_CPU 0x1
246#define RTAS_TARGET_PCI 0x2
247#define RTAS_TARGET_ISA 0x3
248#define RTAS_TARGET_MEMORY 0x4
249#define RTAS_TARGET_POWERMGM 0x5
250
251/* RTAS event type */
252#define RTAS_TYPE_RETRY 0x01
253#define RTAS_TYPE_TCE_ERR 0x02
254#define RTAS_TYPE_INTERN_DEV_FAIL 0x03
255#define RTAS_TYPE_TIMEOUT 0x04
256#define RTAS_TYPE_DATA_PARITY 0x05
257#define RTAS_TYPE_ADDR_PARITY 0x06
258#define RTAS_TYPE_CACHE_PARITY 0x07
259#define RTAS_TYPE_ADDR_INVALID 0x08
260#define RTAS_TYPE_ECC_UNCORR 0x09
261#define RTAS_TYPE_ECC_CORR 0x0a
262#define RTAS_TYPE_EPOW 0x40
263#define RTAS_TYPE_PLATFORM 0xE0
264#define RTAS_TYPE_IO 0xE1
265#define RTAS_TYPE_INFO 0xE2
266#define RTAS_TYPE_DEALLOC 0xE3
267#define RTAS_TYPE_DUMP 0xE4
268#define RTAS_TYPE_HOTPLUG 0xE5
269/* I don't add PowerMGM events right now, this is a different topic */
270#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60
271#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61
272#define RTAS_TYPE_PMGM_LID_OPEN 0x62
273#define RTAS_TYPE_PMGM_LID_CLOSE 0x63
274#define RTAS_TYPE_PMGM_SLEEP_BTN 0x64
275#define RTAS_TYPE_PMGM_WAKE_BTN 0x65
276#define RTAS_TYPE_PMGM_BATTERY_WARN 0x66
277#define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67
278#define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68
279#define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69
280#define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a
281#define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b
282#define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c
283#define RTAS_TYPE_PMGM_RING_INDICATE 0x6d
284#define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e
285#define RTAS_TYPE_PMGM_TIME_ALARM 0x6f
286#define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70
287#define RTAS_TYPE_PMGM_SERVICE_PROC 0x71
288/* Platform Resource Reassignment Notification */
289#define RTAS_TYPE_PRRN 0xA0
290
291/* RTAS check-exception vector offset */
292#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
293
294static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
295{
296 return (elog->byte1 & 0xE0) >> 5;
297}
298
299static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
300{
301 return (elog->byte1 & 0x18) >> 3;
302}
303
304static inline
305void rtas_set_disposition_recovered(struct rtas_error_log *elog)
306{
307 elog->byte1 &= ~0x18;
308 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
309}
310
311static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
312{
313 return (elog->byte1 & 0x04) >> 2;
314}
315
316static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
317{
318 return (elog->byte2 & 0xf0) >> 4;
319}
320
321#define rtas_error_type(x) ((x)->byte3)
322
323static inline
324uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
325{
326 return be32_to_cpu(elog->extended_log_length);
327}
328
329#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14
330
331#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
332
333static
334inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
335{
336 return ext_log->byte2 & 0x0F;
337}
338
339static
340inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
341{
342 return be32_to_cpu(ext_log->company_id);
343}
344
345/* pSeries event log format */
346
347/* Two bytes ASCII section IDs */
348#define PSERIES_ELOG_SECT_ID_PRIV_HDR (('P' << 8) | 'H')
349#define PSERIES_ELOG_SECT_ID_USER_HDR (('U' << 8) | 'H')
350#define PSERIES_ELOG_SECT_ID_PRIMARY_SRC (('P' << 8) | 'S')
351#define PSERIES_ELOG_SECT_ID_EXTENDED_UH (('E' << 8) | 'H')
352#define PSERIES_ELOG_SECT_ID_FAILING_MTMS (('M' << 8) | 'T')
353#define PSERIES_ELOG_SECT_ID_SECONDARY_SRC (('S' << 8) | 'S')
354#define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR (('D' << 8) | 'H')
355#define PSERIES_ELOG_SECT_ID_FW_ERROR (('S' << 8) | 'W')
356#define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID (('L' << 8) | 'P')
357#define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID (('L' << 8) | 'R')
358#define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M')
359#define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P')
360#define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E')
361#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I')
362#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H')
363#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D')
364#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
365#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C')
366
367static
368inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
369{
370 return be16_to_cpu(sect->id);
371}
372
373static
374inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
375{
376 return be16_to_cpu(sect->length);
377}
378
379#define PSERIES_HP_ELOG_RESOURCE_CPU 1
380#define PSERIES_HP_ELOG_RESOURCE_MEM 2
381#define PSERIES_HP_ELOG_RESOURCE_SLOT 3
382#define PSERIES_HP_ELOG_RESOURCE_PHB 4
383#define PSERIES_HP_ELOG_RESOURCE_PMEM 6
384
385#define PSERIES_HP_ELOG_ACTION_ADD 1
386#define PSERIES_HP_ELOG_ACTION_REMOVE 2
387
388#define PSERIES_HP_ELOG_ID_DRC_NAME 1
389#define PSERIES_HP_ELOG_ID_DRC_INDEX 2
390#define PSERIES_HP_ELOG_ID_DRC_COUNT 3
391#define PSERIES_HP_ELOG_ID_DRC_IC 4
392
393struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
394 uint16_t section_id);
395
396/*
397 * This can be set by the rtas_flash module so that it can get called
398 * as the absolutely last thing before the kernel terminates.
399 */
400extern void (*rtas_flash_term_hook)(int);
401
402extern struct rtas_t rtas;
403
404s32 rtas_function_token(const rtas_fn_handle_t handle);
405static inline bool rtas_function_implemented(const rtas_fn_handle_t handle)
406{
407 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE;
408}
409extern int rtas_token(const char *service);
410extern int rtas_service_present(const char *service);
411extern int rtas_call(int token, int, int, int *, ...);
412void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
413 int nret, ...);
414extern void __noreturn rtas_restart(char *cmd);
415extern void rtas_power_off(void);
416extern void __noreturn rtas_halt(void);
417extern void rtas_os_term(char *str);
418void rtas_activate_firmware(void);
419extern int rtas_get_sensor(int sensor, int index, int *state);
420extern int rtas_get_sensor_fast(int sensor, int index, int *state);
421extern int rtas_get_power_level(int powerdomain, int *level);
422extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
423extern bool rtas_indicator_present(int token, int *maxindex);
424extern int rtas_set_indicator(int indicator, int index, int new_value);
425extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
426extern void rtas_progress(char *s, unsigned short hex);
427int rtas_ibm_suspend_me(int *fw_status);
428
429struct rtc_time;
430extern time64_t rtas_get_boot_time(void);
431extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
432extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
433
434extern unsigned int rtas_busy_delay_time(int status);
435bool rtas_busy_delay(int status);
436
437extern int early_init_dt_scan_rtas(unsigned long node,
438 const char *uname, int depth, void *data);
439
440extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
441
442#ifdef CONFIG_PPC_PSERIES
443extern time64_t last_rtas_event;
444extern int clobbering_unread_rtas_event(void);
445extern void post_mobility_fixup(void);
446int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
447#else
448static inline int clobbering_unread_rtas_event(void) { return 0; }
449static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
450{
451 return -EINVAL;
452}
453#endif
454
455#ifdef CONFIG_PPC_RTAS_DAEMON
456extern void rtas_cancel_event_scan(void);
457#else
458static inline void rtas_cancel_event_scan(void) { }
459#endif
460
461/* Error types logged. */
462#define ERR_FLAG_ALREADY_LOGGED 0x0
463#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */
464#define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */
465#define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */
466#define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */
467
468/* All the types and not flags */
469#define ERR_TYPE_MASK \
470 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
471
472#define RTAS_DEBUG KERN_DEBUG "RTAS: "
473
474#define RTAS_ERROR_LOG_MAX 2048
475
476/*
477 * Return the firmware-specified size of the error log buffer
478 * for all rtas calls that require an error buffer argument.
479 * This includes 'check-exception' and 'rtas-last-error'.
480 */
481extern int rtas_get_error_log_max(void);
482
483/* Event Scan Parameters */
484#define EVENT_SCAN_ALL_EVENTS 0xf0000000
485#define SURVEILLANCE_TOKEN 9000
486#define LOG_NUMBER 64 /* must be a power of two */
487#define LOG_NUMBER_MASK (LOG_NUMBER-1)
488
489/* Some RTAS ops require a data buffer and that buffer must be < 4G.
490 * Rather than having a memory allocator, just use this buffer
491 * (get the lock first), make the RTAS call. Copy the data instead
492 * of holding the buffer for long.
493 */
494
495#define RTAS_DATA_BUF_SIZE 4096
496extern spinlock_t rtas_data_buf_lock;
497extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
498
499/* RMO buffer reserved for user-space RTAS use */
500extern unsigned long rtas_rmo_buf;
501
502#define GLOBAL_INTERRUPT_QUEUE 9005
503
504/**
505 * rtas_config_addr - Format a busno, devfn and reg for RTAS.
506 * @busno: The bus number.
507 * @devfn: The device and function number as encoded by PCI_DEVFN().
508 * @reg: The register number.
509 *
510 * This function encodes the given busno, devfn and register number as
511 * required for RTAS calls that take a "config_addr" parameter.
512 * See PAPR requirement 7.3.4-1 for more info.
513 */
514static inline u32 rtas_config_addr(int busno, int devfn, int reg)
515{
516 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
517 (devfn << 8) | (reg & 0xff);
518}
519
520extern void rtas_give_timebase(void);
521extern void rtas_take_timebase(void);
522
523#ifdef CONFIG_PPC_RTAS
524static inline int page_is_rtas_user_buf(unsigned long pfn)
525{
526 unsigned long paddr = (pfn << PAGE_SHIFT);
527 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE))
528 return 1;
529 return 0;
530}
531
532/* Not the best place to put pSeries_coalesce_init, will be fixed when we
533 * move some of the rtas suspend-me stuff to pseries */
534extern void pSeries_coalesce_init(void);
535void rtas_initialize(void);
536#else
537static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
538static inline void pSeries_coalesce_init(void) { }
539static inline void rtas_initialize(void) { }
540#endif
541
542extern int call_rtas(const char *, int, int, unsigned long *, ...);
543
544#ifdef CONFIG_HV_PERF_CTRS
545void read_24x7_sys_info(void);
546#else
547static inline void read_24x7_sys_info(void) { }
548#endif
549
550#endif /* __KERNEL__ */
551#endif /* _POWERPC_RTAS_H */