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powerpc/rtas: Remove unused rtas_service_present()
[linux-2.6-block.git] / arch / powerpc / include / asm / rtas.h
CommitLineData
2874c5fd 1/* SPDX-License-Identifier: GPL-2.0-or-later */
9b6b563c
PM		 2#ifndef _POWERPC_RTAS_H
3#define _POWERPC_RTAS_H
88ced031 4#ifdef __KERNEL__
9b6b563c
PM		 5
6#include <linux/spinlock.h>
7#include <asm/page.h>
783a015b 8#include <asm/rtas-types.h>
e4a9616c 9#include <linux/time.h>
8dce6b22 10#include <linux/cpumask.h>
9b6b563c
PM		 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
9b6b563c
PM		 17 */
18
8252b882
NL		 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
716bfc97
NL		 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
9b6b563c 198#define RTAS_UNKNOWN_SERVICE (-1)
fe333321 199#define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */
9b6b563c 200
e5d56763
NL		 201/* Memory set aside for sys_rtas to use with calls that need a work area. */
202#define RTAS_USER_REGION_SIZE (64 * 1024)
9b6b563c
PM		 203
204/* RTAS return status codes */
e160bf64 205#define RTAS_HARDWARE_ERROR -1 /* Hardware Error */
9b6b563c 206#define RTAS_BUSY -2 /* RTAS Busy */
e160bf64 207#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */
9b6b563c
PM		 208#define RTAS_EXTENDED_DELAY_MIN 9900
209#define RTAS_EXTENDED_DELAY_MAX 9905
210
970e453e
NL		 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
9b6b563c
PM		 217/* RTAS event classes */
218#define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */
219#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */
9b6b563c 220#define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */
4a9f9506
AB		 221#define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */
222#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff
9b6b563c
PM		 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
4c5d87db 270#define RTAS_TYPE_HOTPLUG 0xE5
9b6b563c
PM		 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
49c68a85
JL		 290/* Platform Resource Reassignment Notification */
291#define RTAS_TYPE_PRRN 0xA0
9b6b563c 292
b08e281b
MN		 293/* RTAS check-exception vector offset */
294#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
295
a08a53ea
GK		 296static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
297{
298 return (elog->byte1 & 0xE0) >> 5;
299}
300
301static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
302{
303 return (elog->byte1 & 0x18) >> 3;
304}
305
04fce21c
MS		 306static inline
307void rtas_set_disposition_recovered(struct rtas_error_log *elog)
308{
309 elog->byte1 &= ~0x18;
310 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3);
311}
312
a08a53ea
GK		 313static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
314{
315 return (elog->byte1 & 0x04) >> 2;
316}
317
8f0b8056
MS		 318static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog)
319{
320 return (elog->byte2 & 0xf0) >> 4;
321}
322
a08a53ea
GK		 323#define rtas_error_type(x) ((x)->byte3)
324
325static inline
326uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
327{
328 return be32_to_cpu(elog->extended_log_length);
329}
330
4cb46380
THFL		 331#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14
332
333#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
334
a08a53ea
GK		 335static
336inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
337{
338 return ext_log->byte2 & 0x0F;
339}
340
341static
342inline 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
6431f208
AB		 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')
366d395c 366#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P')
04fce21c 367#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C')
6431f208 368
a08a53ea
GK		 369static
370inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
371{
372 return be16_to_cpu(sect->id);
373}
374
375static
376inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
377{
378 return be16_to_cpu(sect->length);
379}
380
366d395c
NF		 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
4c5d87db 385#define PSERIES_HP_ELOG_RESOURCE_PMEM 6
366d395c
NF		 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
333f7b76 393#define PSERIES_HP_ELOG_ID_DRC_IC 4
366d395c 394
6431f208
AB		 395struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
396 uint16_t section_id);
397
f4fcbbe9
PM		 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.
9b6b563c 401 */
f4fcbbe9 402extern void (*rtas_flash_term_hook)(int);
9b6b563c
PM		 403
404extern struct rtas_t rtas;
405
716bfc97
NL		 406s32 rtas_function_token(const rtas_fn_handle_t handle);
407static inline bool rtas_function_implemented(const rtas_fn_handle_t handle)
408{
409 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE;
410}
9b6b563c
PM		 411extern int rtas_token(const char *service);
412extern int rtas_call(int token, int, int, int *, ...);
209eb4e5
ME		 413void rtas_call_unlocked(struct rtas_args *args, int token, int nargs,
414 int nret, ...);
95ec77c0 415extern void __noreturn rtas_restart(char *cmd);
9b6b563c 416extern void rtas_power_off(void);
95ec77c0 417extern void __noreturn rtas_halt(void);
8f515061 418extern void rtas_os_term(char *str);
5f485a66 419void rtas_activate_firmware(void);
9b6b563c 420extern int rtas_get_sensor(int sensor, int index, int *state);
1c2cb594 421extern int rtas_get_sensor_fast(int sensor, int index, int *state);
9b6b563c
PM		 422extern int rtas_get_power_level(int powerdomain, int *level);
423extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
edc72ac4 424extern bool rtas_indicator_present(int token, int *maxindex);
9b6b563c 425extern int rtas_set_indicator(int indicator, int index, int new_value);
81b73dd9 426extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
9b6b563c 427extern void rtas_progress(char *s, unsigned short hex);
701ba683 428int rtas_ibm_suspend_me(int *fw_status);
e160bf64 429int rtas_error_rc(int rtas_rc);
9b6b563c
PM		 430
431struct rtc_time;
5bfd6435 432extern time64_t rtas_get_boot_time(void);
9b6b563c
PM		 433extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
434extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
435
507279db 436extern unsigned int rtas_busy_delay_time(int status);
38f7b706 437bool rtas_busy_delay(int status);
9b6b563c 438
458148c0
ME		 439extern int early_init_dt_scan_rtas(unsigned long node,
440 const char *uname, int depth, void *data);
441
9b6b563c
PM		 442extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal);
443
762ec157 444#ifdef CONFIG_PPC_PSERIES
e4a9616c 445extern time64_t last_rtas_event;
78989f0a 446extern int clobbering_unread_rtas_event(void);
6b36ba84 447extern void post_mobility_fixup(void);
4d756894 448int rtas_syscall_dispatch_ibm_suspend_me(u64 handle);
78989f0a
HB		 449#else
450static inline int clobbering_unread_rtas_event(void) { return 0; }
4d756894
NL		 451static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle)
452{
453 return -EINVAL;
454}
762ec157
NF		 455#endif
456
df17f56d
RN		 457#ifdef CONFIG_PPC_RTAS_DAEMON
458extern void rtas_cancel_event_scan(void);
459#else
460static inline void rtas_cancel_event_scan(void) { }
461#endif
462
9b6b563c
PM		 463/* Error types logged. */
464#define ERR_FLAG_ALREADY_LOGGED 0x0
465#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */
466#define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */
6c493685
JK		 467#define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */
468#define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */
9b6b563c
PM		 469
470/* All the types and not flags */
6c493685
JK		 471#define ERR_TYPE_MASK \
472 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ)
9b6b563c
PM		 473
474#define RTAS_DEBUG KERN_DEBUG "RTAS: "
475
476#define RTAS_ERROR_LOG_MAX 2048
477
478/*
479 * Return the firmware-specified size of the error log buffer
480 * for all rtas calls that require an error buffer argument.
481 * This includes 'check-exception' and 'rtas-last-error'.
482 */
483extern int rtas_get_error_log_max(void);
484
485/* Event Scan Parameters */
486#define EVENT_SCAN_ALL_EVENTS 0xf0000000
487#define SURVEILLANCE_TOKEN 9000
488#define LOG_NUMBER 64 /* must be a power of two */
489#define LOG_NUMBER_MASK (LOG_NUMBER-1)
490
491/* Some RTAS ops require a data buffer and that buffer must be < 4G.
492 * Rather than having a memory allocator, just use this buffer
493 * (get the lock first), make the RTAS call. Copy the data instead
494 * of holding the buffer for long.
495 */
496
497#define RTAS_DATA_BUF_SIZE 4096
498extern spinlock_t rtas_data_buf_lock;
499extern char rtas_data_buf[RTAS_DATA_BUF_SIZE];
500
9b6b563c
PM		 501/* RMO buffer reserved for user-space RTAS use */
502extern unsigned long rtas_rmo_buf;
503
504#define GLOBAL_INTERRUPT_QUEUE 9005
505
6f3d5d3c
ME		 506/**
507 * rtas_config_addr - Format a busno, devfn and reg for RTAS.
508 * @busno: The bus number.
509 * @devfn: The device and function number as encoded by PCI_DEVFN().
510 * @reg: The register number.
511 *
512 * This function encodes the given busno, devfn and register number as
513 * required for RTAS calls that take a "config_addr" parameter.
514 * See PAPR requirement 7.3.4-1 for more info.
515 */
516static inline u32 rtas_config_addr(int busno, int devfn, int reg)
517{
518 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
519 (devfn << 8) | (reg & 0xff);
520}
521
061d19f2
PG		 522extern void rtas_give_timebase(void);
523extern void rtas_take_timebase(void);
c4007a2f 524
8a3e3d31 525#ifdef CONFIG_PPC_RTAS
526static inline int page_is_rtas_user_buf(unsigned long pfn)
527{
528 unsigned long paddr = (pfn << PAGE_SHIFT);
e5d56763 529 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE))
8a3e3d31 530 return 1;
531 return 0;
532}
f459d63e
NF		 533
534/* Not the best place to put pSeries_coalesce_init, will be fixed when we
535 * move some of the rtas suspend-me stuff to pseries */
536extern void pSeries_coalesce_init(void);
b1923caa 537void rtas_initialize(void);
8a3e3d31 538#else
539static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;}
f459d63e 540static inline void pSeries_coalesce_init(void) { }
6c6fdbb2 541static inline void rtas_initialize(void) { }
8a3e3d31 542#endif
543
8ba21426
KJ		 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
88ced031 550#endif /* __KERNEL__ */
9b6b563c 551#endif /* _POWERPC_RTAS_H */
Linux 6.x block layer and io_uring tree(s)