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
19 enum 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 */
108 typedef 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_HARDWARE_ERROR -1 /* Hardware Error */
206 #define RTAS_BUSY -2 /* RTAS Busy */
207 #define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */
208 #define RTAS_EXTENDED_DELAY_MIN 9900
209 #define RTAS_EXTENDED_DELAY_MAX 9905
210
211 /* statuses specific to ibm,suspend-me */
212 #define RTAS_SUSPEND_ABORTED 9000 /* Suspension aborted */
213 #define RTAS_NOT_SUSPENDABLE -9004 /* Partition not suspendable */
214 #define RTAS_THREADS_ACTIVE -9005 /* Multiple processor threads active */
215 #define RTAS_OUTSTANDING_COPROC -9006 /* Outstanding coprocessor operations */
216
217 /* RTAS event classes */
218 #define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */
219 #define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */
220 #define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */
221 #define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */
222 #define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff
223
224 /* RTAS event severity */
225 #define RTAS_SEVERITY_FATAL 0x5
226 #define RTAS_SEVERITY_ERROR 0x4
227 #define RTAS_SEVERITY_ERROR_SYNC 0x3
228 #define RTAS_SEVERITY_WARNING 0x2
229 #define RTAS_SEVERITY_EVENT 0x1
230 #define RTAS_SEVERITY_NO_ERROR 0x0
231
232 /* RTAS event disposition */
233 #define RTAS_DISP_FULLY_RECOVERED 0x0
234 #define RTAS_DISP_LIMITED_RECOVERY 0x1
235 #define RTAS_DISP_NOT_RECOVERED 0x2
236
237 /* RTAS event initiator */
238 #define RTAS_INITIATOR_UNKNOWN 0x0
239 #define RTAS_INITIATOR_CPU 0x1
240 #define RTAS_INITIATOR_PCI 0x2
241 #define RTAS_INITIATOR_ISA 0x3
242 #define RTAS_INITIATOR_MEMORY 0x4
243 #define RTAS_INITIATOR_POWERMGM 0x5
244
245 /* RTAS event target */
246 #define RTAS_TARGET_UNKNOWN 0x0
247 #define RTAS_TARGET_CPU 0x1
248 #define RTAS_TARGET_PCI 0x2
249 #define RTAS_TARGET_ISA 0x3
250 #define RTAS_TARGET_MEMORY 0x4
251 #define RTAS_TARGET_POWERMGM 0x5
252
253 /* RTAS event type */
254 #define RTAS_TYPE_RETRY 0x01
255 #define RTAS_TYPE_TCE_ERR 0x02
256 #define RTAS_TYPE_INTERN_DEV_FAIL 0x03
257 #define RTAS_TYPE_TIMEOUT 0x04
258 #define RTAS_TYPE_DATA_PARITY 0x05
259 #define RTAS_TYPE_ADDR_PARITY 0x06
260 #define RTAS_TYPE_CACHE_PARITY 0x07
261 #define RTAS_TYPE_ADDR_INVALID 0x08
262 #define RTAS_TYPE_ECC_UNCORR 0x09
263 #define RTAS_TYPE_ECC_CORR 0x0a
264 #define RTAS_TYPE_EPOW 0x40
265 #define RTAS_TYPE_PLATFORM 0xE0
266 #define RTAS_TYPE_IO 0xE1
267 #define RTAS_TYPE_INFO 0xE2
268 #define RTAS_TYPE_DEALLOC 0xE3
269 #define RTAS_TYPE_DUMP 0xE4
270 #define RTAS_TYPE_HOTPLUG 0xE5
271 /* I don't add PowerMGM events right now, this is a different topic */
272 #define RTAS_TYPE_PMGM_POWER_SW_ON 0x60
273 #define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61
274 #define RTAS_TYPE_PMGM_LID_OPEN 0x62
275 #define RTAS_TYPE_PMGM_LID_CLOSE 0x63
276 #define RTAS_TYPE_PMGM_SLEEP_BTN 0x64
277 #define RTAS_TYPE_PMGM_WAKE_BTN 0x65
278 #define RTAS_TYPE_PMGM_BATTERY_WARN 0x66
279 #define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67
280 #define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68
281 #define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69
282 #define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a
283 #define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b
284 #define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c
285 #define RTAS_TYPE_PMGM_RING_INDICATE 0x6d
286 #define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e
287 #define RTAS_TYPE_PMGM_TIME_ALARM 0x6f
288 #define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70
289 #define RTAS_TYPE_PMGM_SERVICE_PROC 0x71
290 /* Platform Resource Reassignment Notification */
291 #define RTAS_TYPE_PRRN 0xA0
292
293 /* RTAS check-exception vector offset */
294 #define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
295
rtas_error_severity(const struct rtas_error_log * elog)296 static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
297 {
298 return (elog->byte1 & 0xE0) >> 5;
299 }
300
rtas_error_disposition(const struct rtas_error_log * elog)301 static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
302 {
303 return (elog->byte1 & 0x18) >> 3;
304 }
305
306 static inline
rtas_set_disposition_recovered(struct rtas_error_log * elog)307 void rtas_set_disposition_recovered(struct rtas_error_log *elog)
308 {
309 elog->byte1 &= ~0x18;
310 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
311 }
312
rtas_error_extended(const struct rtas_error_log * elog)313 static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
314 {
315 return (elog->byte1 & 0x04) >> 2;
316 }
317
rtas_error_initiator(const struct rtas_error_log * elog)318 static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
319 {
320 return (elog->byte2 & 0xf0) >> 4;
321 }
322
323 #define rtas_error_type(x) ((x)->byte3)
324
325 static inline
rtas_error_extended_log_length(const struct rtas_error_log * elog)326 uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
327 {
328 return be32_to_cpu(elog->extended_log_length);
329 }
330
331 #define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14
332
333 #define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
334
335 static
rtas_ext_event_log_format(struct rtas_ext_event_log_v6 * ext_log)336 inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
337 {
338 return ext_log->byte2 & 0x0F;
339 }
340
341 static
rtas_ext_event_company_id(struct rtas_ext_event_log_v6 * ext_log)342 inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
343 {
344 return be32_to_cpu(ext_log->company_id);
345 }
346
347 /* pSeries event log format */
348
349 /* Two bytes ASCII section IDs */
350 #define PSERIES_ELOG_SECT_ID_PRIV_HDR (('P' << 8) | 'H')
351 #define PSERIES_ELOG_SECT_ID_USER_HDR (('U' << 8) | 'H')
352 #define PSERIES_ELOG_SECT_ID_PRIMARY_SRC (('P' << 8) | 'S')
353 #define PSERIES_ELOG_SECT_ID_EXTENDED_UH (('E' << 8) | 'H')
354 #define PSERIES_ELOG_SECT_ID_FAILING_MTMS (('M' << 8) | 'T')
355 #define PSERIES_ELOG_SECT_ID_SECONDARY_SRC (('S' << 8) | 'S')
356 #define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR (('D' << 8) | 'H')
357 #define PSERIES_ELOG_SECT_ID_FW_ERROR (('S' << 8) | 'W')
358 #define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID (('L' << 8) | 'P')
359 #define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID (('L' << 8) | 'R')
360 #define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M')
361 #define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P')
362 #define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E')
363 #define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I')
364 #define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H')
365 #define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D')
366 #define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
367 #define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C')
368
369 static
pseries_errorlog_id(struct pseries_errorlog * sect)370 inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
371 {
372 return be16_to_cpu(sect->id);
373 }
374
375 static
pseries_errorlog_length(struct pseries_errorlog * sect)376 inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
377 {
378 return be16_to_cpu(sect->length);
379 }
380
381 #define PSERIES_HP_ELOG_RESOURCE_CPU 1
382 #define PSERIES_HP_ELOG_RESOURCE_MEM 2
383 #define PSERIES_HP_ELOG_RESOURCE_SLOT 3
384 #define PSERIES_HP_ELOG_RESOURCE_PHB 4
385 #define PSERIES_HP_ELOG_RESOURCE_PMEM 6
386
387 #define PSERIES_HP_ELOG_ACTION_ADD 1
388 #define PSERIES_HP_ELOG_ACTION_REMOVE 2
389
390 #define PSERIES_HP_ELOG_ID_DRC_NAME 1
391 #define PSERIES_HP_ELOG_ID_DRC_INDEX 2
392 #define PSERIES_HP_ELOG_ID_DRC_COUNT 3
393 #define PSERIES_HP_ELOG_ID_DRC_IC 4
394
395 struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
396 uint16_t section_id);
397
398 /*
399 * This can be set by the rtas_flash module so that it can get called
400 * as the absolutely last thing before the kernel terminates.
401 */
402 extern void (*rtas_flash_term_hook)(int);
403
404 extern struct rtas_t rtas;
405
406 s32 rtas_function_token(const rtas_fn_handle_t handle);
rtas_function_implemented(const rtas_fn_handle_t handle)407 static inline bool rtas_function_implemented(const rtas_fn_handle_t handle)
408 {
409 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE;
410 }
411 extern int rtas_token(const char *service);
412 extern int rtas_service_present(const char *service);
413 extern int rtas_call(int token, int, int, int *, ...);
414 void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
415 int nret, ...);
416 extern void __noreturn rtas_restart(char *cmd);
417 extern void rtas_power_off(void);
418 extern void __noreturn rtas_halt(void);
419 extern void rtas_os_term(char *str);
420 void rtas_activate_firmware(void);
421 extern int rtas_get_sensor(int sensor, int index, int *state);
422 extern int rtas_get_sensor_fast(int sensor, int index, int *state);
423 extern int rtas_get_power_level(int powerdomain, int *level);
424 extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
425 extern bool rtas_indicator_present(int token, int *maxindex);
426 extern int rtas_set_indicator(int indicator, int index, int new_value);
427 extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
428 extern void rtas_progress(char *s, unsigned short hex);
429 int rtas_ibm_suspend_me(int *fw_status);
430 int rtas_error_rc(int rtas_rc);
431
432 struct rtc_time;
433 extern time64_t rtas_get_boot_time(void);
434 extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
435 extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
436
437 extern unsigned int rtas_busy_delay_time(int status);
438 bool rtas_busy_delay(int status);
439
440 extern int early_init_dt_scan_rtas(unsigned long node,
441 const char *uname, int depth, void *data);
442
443 extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
444
445 #ifdef CONFIG_PPC_PSERIES
446 extern time64_t last_rtas_event;
447 extern int clobbering_unread_rtas_event(void);
448 extern void post_mobility_fixup(void);
449 int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
450 #else
clobbering_unread_rtas_event(void)451 static inline int clobbering_unread_rtas_event(void) { return 0; }
rtas_syscall_dispatch_ibm_suspend_me(u64 handle)452 static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
453 {
454 return -EINVAL;
455 }
456 #endif
457
458 #ifdef CONFIG_PPC_RTAS_DAEMON
459 extern void rtas_cancel_event_scan(void);
460 #else
rtas_cancel_event_scan(void)461 static inline void rtas_cancel_event_scan(void) { }
462 #endif
463
464 /* Error types logged. */
465 #define ERR_FLAG_ALREADY_LOGGED 0x0
466 #define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */
467 #define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */
468 #define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */
469 #define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */
470
471 /* All the types and not flags */
472 #define ERR_TYPE_MASK \
473 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
474
475 #define RTAS_DEBUG KERN_DEBUG "RTAS: "
476
477 #define RTAS_ERROR_LOG_MAX 2048
478
479 /*
480 * Return the firmware-specified size of the error log buffer
481 * for all rtas calls that require an error buffer argument.
482 * This includes 'check-exception' and 'rtas-last-error'.
483 */
484 extern int rtas_get_error_log_max(void);
485
486 /* Event Scan Parameters */
487 #define EVENT_SCAN_ALL_EVENTS 0xf0000000
488 #define SURVEILLANCE_TOKEN 9000
489 #define LOG_NUMBER 64 /* must be a power of two */
490 #define LOG_NUMBER_MASK (LOG_NUMBER-1)
491
492 /* Some RTAS ops require a data buffer and that buffer must be < 4G.
493 * Rather than having a memory allocator, just use this buffer
494 * (get the lock first), make the RTAS call. Copy the data instead
495 * of holding the buffer for long.
496 */
497
498 #define RTAS_DATA_BUF_SIZE 4096
499 extern spinlock_t rtas_data_buf_lock;
500 extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
501
502 /* RMO buffer reserved for user-space RTAS use */
503 extern unsigned long rtas_rmo_buf;
504
505 #define GLOBAL_INTERRUPT_QUEUE 9005
506
507 /**
508 * rtas_config_addr - Format a busno, devfn and reg for RTAS.
509 * @busno: The bus number.
510 * @devfn: The device and function number as encoded by PCI_DEVFN().
511 * @reg: The register number.
512 *
513 * This function encodes the given busno, devfn and register number as
514 * required for RTAS calls that take a "config_addr" parameter.
515 * See PAPR requirement 7.3.4-1 for more info.
516 */
rtas_config_addr(int busno,int devfn,int reg)517 static inline u32 rtas_config_addr(int busno, int devfn, int reg)
518 {
519 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
520 (devfn << 8) | (reg & 0xff);
521 }
522
523 extern void rtas_give_timebase(void);
524 extern void rtas_take_timebase(void);
525
526 #ifdef CONFIG_PPC_RTAS
page_is_rtas_user_buf(unsigned long pfn)527 static inline int page_is_rtas_user_buf(unsigned long pfn)
528 {
529 unsigned long paddr = (pfn << PAGE_SHIFT);
530 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE))
531 return 1;
532 return 0;
533 }
534
535 /* Not the best place to put pSeries_coalesce_init, will be fixed when we
536 * move some of the rtas suspend-me stuff to pseries */
537 extern void pSeries_coalesce_init(void);
538 void rtas_initialize(void);
539 #else
page_is_rtas_user_buf(unsigned long pfn)540 static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
pSeries_coalesce_init(void)541 static inline void pSeries_coalesce_init(void) { }
rtas_initialize(void)542 static inline void rtas_initialize(void) { }
543 #endif
544
545 extern int call_rtas(const char *, int, int, unsigned long *, ...);
546
547 #ifdef CONFIG_HV_PERF_CTRS
548 void read_24x7_sys_info(void);
549 #else
read_24x7_sys_info(void)550 static inline void read_24x7_sys_info(void) { }
551 #endif
552
553 #endif /* __KERNEL__ */
554 #endif /* _POWERPC_RTAS_H */
555
