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/mutex.h> 7#include <linux/spinlock.h> 8#include <asm/page.h> 9#include <asm/rtas-types.h> 10#include <linux/time.h> 11#include <linux/cpumask.h> 12 13/* 14 * Definitions for talking to the RTAS on CHRP machines. 15 * 16 * Copyright (C) 2001 Peter Bergner 17 * Copyright (C) 2001 PPC 64 Team, IBM Corp 18 */ 19 20enum rtas_function_index { 21 RTAS_FNIDX__CHECK_EXCEPTION, 22 RTAS_FNIDX__DISPLAY_CHARACTER, 23 RTAS_FNIDX__EVENT_SCAN, 24 RTAS_FNIDX__FREEZE_TIME_BASE, 25 RTAS_FNIDX__GET_POWER_LEVEL, 26 RTAS_FNIDX__GET_SENSOR_STATE, 27 RTAS_FNIDX__GET_TERM_CHAR, 28 RTAS_FNIDX__GET_TIME_OF_DAY, 29 RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE, 30 RTAS_FNIDX__IBM_CBE_START_PTCAL, 31 RTAS_FNIDX__IBM_CBE_STOP_PTCAL, 32 RTAS_FNIDX__IBM_CHANGE_MSI, 33 RTAS_FNIDX__IBM_CLOSE_ERRINJCT, 34 RTAS_FNIDX__IBM_CONFIGURE_BRIDGE, 35 RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR, 36 RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP, 37 RTAS_FNIDX__IBM_CONFIGURE_PE, 38 RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW, 39 RTAS_FNIDX__IBM_DISPLAY_MESSAGE, 40 RTAS_FNIDX__IBM_ERRINJCT, 41 RTAS_FNIDX__IBM_EXTI2C, 42 RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO, 43 RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2, 44 RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE, 45 RTAS_FNIDX__IBM_GET_INDICES, 46 RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY, 47 RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER, 48 RTAS_FNIDX__IBM_GET_VPD, 49 RTAS_FNIDX__IBM_GET_XIVE, 50 RTAS_FNIDX__IBM_INT_OFF, 51 RTAS_FNIDX__IBM_INT_ON, 52 RTAS_FNIDX__IBM_IO_QUIESCE_ACK, 53 RTAS_FNIDX__IBM_LPAR_PERFTOOLS, 54 RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE, 55 RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION, 56 RTAS_FNIDX__IBM_NMI_INTERLOCK, 57 RTAS_FNIDX__IBM_NMI_REGISTER, 58 RTAS_FNIDX__IBM_OPEN_ERRINJCT, 59 RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE, 60 RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER, 61 RTAS_FNIDX__IBM_OS_TERM, 62 RTAS_FNIDX__IBM_PARTNER_CONTROL, 63 RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION, 64 RTAS_FNIDX__IBM_PLATFORM_DUMP, 65 RTAS_FNIDX__IBM_POWER_OFF_UPS, 66 RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER, 67 RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW, 68 RTAS_FNIDX__IBM_READ_PCI_CONFIG, 69 RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE, 70 RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2, 71 RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW, 72 RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW, 73 RTAS_FNIDX__IBM_SCAN_LOG_DUMP, 74 RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR, 75 RTAS_FNIDX__IBM_SET_EEH_OPTION, 76 RTAS_FNIDX__IBM_SET_SLOT_RESET, 77 RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER, 78 RTAS_FNIDX__IBM_SET_XIVE, 79 RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL, 80 RTAS_FNIDX__IBM_SUSPEND_ME, 81 RTAS_FNIDX__IBM_TUNE_DMA_PARMS, 82 RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT, 83 RTAS_FNIDX__IBM_UPDATE_NODES, 84 RTAS_FNIDX__IBM_UPDATE_PROPERTIES, 85 RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE, 86 RTAS_FNIDX__IBM_WRITE_PCI_CONFIG, 87 RTAS_FNIDX__NVRAM_FETCH, 88 RTAS_FNIDX__NVRAM_STORE, 89 RTAS_FNIDX__POWER_OFF, 90 RTAS_FNIDX__PUT_TERM_CHAR, 91 RTAS_FNIDX__QUERY_CPU_STOPPED_STATE, 92 RTAS_FNIDX__READ_PCI_CONFIG, 93 RTAS_FNIDX__RTAS_LAST_ERROR, 94 RTAS_FNIDX__SET_INDICATOR, 95 RTAS_FNIDX__SET_POWER_LEVEL, 96 RTAS_FNIDX__SET_TIME_FOR_POWER_ON, 97 RTAS_FNIDX__SET_TIME_OF_DAY, 98 RTAS_FNIDX__START_CPU, 99 RTAS_FNIDX__STOP_SELF, 100 RTAS_FNIDX__SYSTEM_REBOOT, 101 RTAS_FNIDX__THAW_TIME_BASE, 102 RTAS_FNIDX__WRITE_PCI_CONFIG, 103}; 104 105/* 106 * Opaque handle for client code to refer to RTAS functions. All valid 107 * function handles are build-time constants prefixed with RTAS_FN_. 108 */ 109typedef struct { 110 const enum rtas_function_index index; 111} rtas_fn_handle_t; 112 113 114#define rtas_fn_handle(x_) ((const rtas_fn_handle_t) { .index = x_, }) 115 116#define RTAS_FN_CHECK_EXCEPTION rtas_fn_handle(RTAS_FNIDX__CHECK_EXCEPTION) 117#define RTAS_FN_DISPLAY_CHARACTER rtas_fn_handle(RTAS_FNIDX__DISPLAY_CHARACTER) 118#define RTAS_FN_EVENT_SCAN rtas_fn_handle(RTAS_FNIDX__EVENT_SCAN) 119#define RTAS_FN_FREEZE_TIME_BASE rtas_fn_handle(RTAS_FNIDX__FREEZE_TIME_BASE) 120#define RTAS_FN_GET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__GET_POWER_LEVEL) 121#define RTAS_FN_GET_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__GET_SENSOR_STATE) 122#define RTAS_FN_GET_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__GET_TERM_CHAR) 123#define RTAS_FN_GET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__GET_TIME_OF_DAY) 124#define RTAS_FN_IBM_ACTIVATE_FIRMWARE rtas_fn_handle(RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE) 125#define RTAS_FN_IBM_CBE_START_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_START_PTCAL) 126#define RTAS_FN_IBM_CBE_STOP_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_STOP_PTCAL) 127#define RTAS_FN_IBM_CHANGE_MSI rtas_fn_handle(RTAS_FNIDX__IBM_CHANGE_MSI) 128#define RTAS_FN_IBM_CLOSE_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_CLOSE_ERRINJCT) 129#define RTAS_FN_IBM_CONFIGURE_BRIDGE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_BRIDGE) 130#define RTAS_FN_IBM_CONFIGURE_CONNECTOR rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR) 131#define RTAS_FN_IBM_CONFIGURE_KERNEL_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP) 132#define RTAS_FN_IBM_CONFIGURE_PE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_PE) 133#define RTAS_FN_IBM_CREATE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW) 134#define RTAS_FN_IBM_DISPLAY_MESSAGE rtas_fn_handle(RTAS_FNIDX__IBM_DISPLAY_MESSAGE) 135#define RTAS_FN_IBM_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_ERRINJCT) 136#define RTAS_FN_IBM_EXTI2C rtas_fn_handle(RTAS_FNIDX__IBM_EXTI2C) 137#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO) 138#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO2 rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2) 139#define RTAS_FN_IBM_GET_DYNAMIC_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE) 140#define RTAS_FN_IBM_GET_INDICES rtas_fn_handle(RTAS_FNIDX__IBM_GET_INDICES) 141#define RTAS_FN_IBM_GET_RIO_TOPOLOGY rtas_fn_handle(RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY) 142#define RTAS_FN_IBM_GET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER) 143#define RTAS_FN_IBM_GET_VPD rtas_fn_handle(RTAS_FNIDX__IBM_GET_VPD) 144#define RTAS_FN_IBM_GET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_GET_XIVE) 145#define RTAS_FN_IBM_INT_OFF rtas_fn_handle(RTAS_FNIDX__IBM_INT_OFF) 146#define RTAS_FN_IBM_INT_ON rtas_fn_handle(RTAS_FNIDX__IBM_INT_ON) 147#define RTAS_FN_IBM_IO_QUIESCE_ACK rtas_fn_handle(RTAS_FNIDX__IBM_IO_QUIESCE_ACK) 148#define RTAS_FN_IBM_LPAR_PERFTOOLS rtas_fn_handle(RTAS_FNIDX__IBM_LPAR_PERFTOOLS) 149#define RTAS_FN_IBM_MANAGE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE) 150#define RTAS_FN_IBM_MANAGE_STORAGE_PRESERVATION rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION) 151#define RTAS_FN_IBM_NMI_INTERLOCK rtas_fn_handle(RTAS_FNIDX__IBM_NMI_INTERLOCK) 152#define RTAS_FN_IBM_NMI_REGISTER rtas_fn_handle(RTAS_FNIDX__IBM_NMI_REGISTER) 153#define RTAS_FN_IBM_OPEN_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_ERRINJCT) 154#define RTAS_FN_IBM_OPEN_SRIOV_ALLOW_UNFREEZE rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE) 155#define RTAS_FN_IBM_OPEN_SRIOV_MAP_PE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER) 156#define RTAS_FN_IBM_OS_TERM rtas_fn_handle(RTAS_FNIDX__IBM_OS_TERM) 157#define RTAS_FN_IBM_PARTNER_CONTROL rtas_fn_handle(RTAS_FNIDX__IBM_PARTNER_CONTROL) 158#define RTAS_FN_IBM_PHYSICAL_ATTESTATION rtas_fn_handle(RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION) 159#define RTAS_FN_IBM_PLATFORM_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_PLATFORM_DUMP) 160#define RTAS_FN_IBM_POWER_OFF_UPS rtas_fn_handle(RTAS_FNIDX__IBM_POWER_OFF_UPS) 161#define RTAS_FN_IBM_QUERY_INTERRUPT_SOURCE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER) 162#define RTAS_FN_IBM_QUERY_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW) 163#define RTAS_FN_IBM_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_READ_PCI_CONFIG) 164#define RTAS_FN_IBM_READ_SLOT_RESET_STATE rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE) 165#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2 rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2) 166#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW) 167#define RTAS_FN_IBM_RESET_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW) 168#define RTAS_FN_IBM_SCAN_LOG_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP) 169#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR) 170#define RTAS_FN_IBM_SET_EEH_OPTION rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION) 171#define RTAS_FN_IBM_SET_SLOT_RESET rtas_fn_handle(RTAS_FNIDX__IBM_SET_SLOT_RESET) 172#define RTAS_FN_IBM_SET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER) 173#define RTAS_FN_IBM_SET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_SET_XIVE) 174#define RTAS_FN_IBM_SLOT_ERROR_DETAIL rtas_fn_handle(RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL) 175#define RTAS_FN_IBM_SUSPEND_ME rtas_fn_handle(RTAS_FNIDX__IBM_SUSPEND_ME) 176#define RTAS_FN_IBM_TUNE_DMA_PARMS rtas_fn_handle(RTAS_FNIDX__IBM_TUNE_DMA_PARMS) 177#define RTAS_FN_IBM_UPDATE_FLASH_64_AND_REBOOT rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT) 178#define RTAS_FN_IBM_UPDATE_NODES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_NODES) 179#define RTAS_FN_IBM_UPDATE_PROPERTIES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_PROPERTIES) 180#define RTAS_FN_IBM_VALIDATE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE) 181#define RTAS_FN_IBM_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_WRITE_PCI_CONFIG) 182#define RTAS_FN_NVRAM_FETCH rtas_fn_handle(RTAS_FNIDX__NVRAM_FETCH) 183#define RTAS_FN_NVRAM_STORE rtas_fn_handle(RTAS_FNIDX__NVRAM_STORE) 184#define RTAS_FN_POWER_OFF rtas_fn_handle(RTAS_FNIDX__POWER_OFF) 185#define RTAS_FN_PUT_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__PUT_TERM_CHAR) 186#define RTAS_FN_QUERY_CPU_STOPPED_STATE rtas_fn_handle(RTAS_FNIDX__QUERY_CPU_STOPPED_STATE) 187#define RTAS_FN_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__READ_PCI_CONFIG) 188#define RTAS_FN_RTAS_LAST_ERROR rtas_fn_handle(RTAS_FNIDX__RTAS_LAST_ERROR) 189#define RTAS_FN_SET_INDICATOR rtas_fn_handle(RTAS_FNIDX__SET_INDICATOR) 190#define RTAS_FN_SET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__SET_POWER_LEVEL) 191#define RTAS_FN_SET_TIME_FOR_POWER_ON rtas_fn_handle(RTAS_FNIDX__SET_TIME_FOR_POWER_ON) 192#define RTAS_FN_SET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__SET_TIME_OF_DAY) 193#define RTAS_FN_START_CPU rtas_fn_handle(RTAS_FNIDX__START_CPU) 194#define RTAS_FN_STOP_SELF rtas_fn_handle(RTAS_FNIDX__STOP_SELF) 195#define RTAS_FN_SYSTEM_REBOOT rtas_fn_handle(RTAS_FNIDX__SYSTEM_REBOOT) 196#define RTAS_FN_THAW_TIME_BASE rtas_fn_handle(RTAS_FNIDX__THAW_TIME_BASE) 197#define RTAS_FN_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__WRITE_PCI_CONFIG) 198 199#define RTAS_UNKNOWN_SERVICE (-1) 200#define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */ 201 202/* Memory set aside for sys_rtas to use with calls that need a work area. */ 203#define RTAS_USER_REGION_SIZE (64 * 1024) 204 205/* 206 * Common RTAS function return values, derived from the table "RTAS 207 * Status Word Values" in PAPR+ v2.13 7.2.8: "Return Codes". If a 208 * function can return a value in this table then generally it has the 209 * meaning listed here. More extended commentary in the documentation 210 * for rtas_call(). 211 * 212 * RTAS functions may use negative and positive numbers not in this 213 * set for function-specific error and success conditions, 214 * respectively. 215 */ 216#define RTAS_SUCCESS 0 /* Success. */ 217#define RTAS_HARDWARE_ERROR -1 /* Hardware or other unspecified error. */ 218#define RTAS_BUSY -2 /* Retry immediately. */ 219#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */ 220#define RTAS_UNEXPECTED_STATE_CHANGE -7 /* Seems limited to EEH and slot reset. */ 221#define RTAS_EXTENDED_DELAY_MIN 9900 /* Retry after delaying for ~1ms. */ 222#define RTAS_EXTENDED_DELAY_MAX 9905 /* Retry after delaying for ~100s. */ 223#define RTAS_ML_ISOLATION_ERROR -9000 /* Multi-level isolation error. */ 224 225/* statuses specific to ibm,suspend-me */ 226#define RTAS_SUSPEND_ABORTED 9000 /* Suspension aborted */ 227#define RTAS_NOT_SUSPENDABLE -9004 /* Partition not suspendable */ 228#define RTAS_THREADS_ACTIVE -9005 /* Multiple processor threads active */ 229#define RTAS_OUTSTANDING_COPROC -9006 /* Outstanding coprocessor operations */ 230 231/* RTAS event classes */ 232#define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */ 233#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */ 234#define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */ 235#define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */ 236#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff 237 238/* RTAS event severity */ 239#define RTAS_SEVERITY_FATAL 0x5 240#define RTAS_SEVERITY_ERROR 0x4 241#define RTAS_SEVERITY_ERROR_SYNC 0x3 242#define RTAS_SEVERITY_WARNING 0x2 243#define RTAS_SEVERITY_EVENT 0x1 244#define RTAS_SEVERITY_NO_ERROR 0x0 245 246/* RTAS event disposition */ 247#define RTAS_DISP_FULLY_RECOVERED 0x0 248#define RTAS_DISP_LIMITED_RECOVERY 0x1 249#define RTAS_DISP_NOT_RECOVERED 0x2 250 251/* RTAS event initiator */ 252#define RTAS_INITIATOR_UNKNOWN 0x0 253#define RTAS_INITIATOR_CPU 0x1 254#define RTAS_INITIATOR_PCI 0x2 255#define RTAS_INITIATOR_ISA 0x3 256#define RTAS_INITIATOR_MEMORY 0x4 257#define RTAS_INITIATOR_POWERMGM 0x5 258 259/* RTAS event target */ 260#define RTAS_TARGET_UNKNOWN 0x0 261#define RTAS_TARGET_CPU 0x1 262#define RTAS_TARGET_PCI 0x2 263#define RTAS_TARGET_ISA 0x3 264#define RTAS_TARGET_MEMORY 0x4 265#define RTAS_TARGET_POWERMGM 0x5 266 267/* RTAS event type */ 268#define RTAS_TYPE_RETRY 0x01 269#define RTAS_TYPE_TCE_ERR 0x02 270#define RTAS_TYPE_INTERN_DEV_FAIL 0x03 271#define RTAS_TYPE_TIMEOUT 0x04 272#define RTAS_TYPE_DATA_PARITY 0x05 273#define RTAS_TYPE_ADDR_PARITY 0x06 274#define RTAS_TYPE_CACHE_PARITY 0x07 275#define RTAS_TYPE_ADDR_INVALID 0x08 276#define RTAS_TYPE_ECC_UNCORR 0x09 277#define RTAS_TYPE_ECC_CORR 0x0a 278#define RTAS_TYPE_EPOW 0x40 279#define RTAS_TYPE_PLATFORM 0xE0 280#define RTAS_TYPE_IO 0xE1 281#define RTAS_TYPE_INFO 0xE2 282#define RTAS_TYPE_DEALLOC 0xE3 283#define RTAS_TYPE_DUMP 0xE4 284#define RTAS_TYPE_HOTPLUG 0xE5 285/* I don't add PowerMGM events right now, this is a different topic */ 286#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60 287#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61 288#define RTAS_TYPE_PMGM_LID_OPEN 0x62 289#define RTAS_TYPE_PMGM_LID_CLOSE 0x63 290#define RTAS_TYPE_PMGM_SLEEP_BTN 0x64 291#define RTAS_TYPE_PMGM_WAKE_BTN 0x65 292#define RTAS_TYPE_PMGM_BATTERY_WARN 0x66 293#define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67 294#define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68 295#define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69 296#define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a 297#define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b 298#define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c 299#define RTAS_TYPE_PMGM_RING_INDICATE 0x6d 300#define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e 301#define RTAS_TYPE_PMGM_TIME_ALARM 0x6f 302#define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70 303#define RTAS_TYPE_PMGM_SERVICE_PROC 0x71 304/* Platform Resource Reassignment Notification */ 305#define RTAS_TYPE_PRRN 0xA0 306 307/* RTAS check-exception vector offset */ 308#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500 309 310static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog) 311{ 312 return (elog->byte1 & 0xE0) >> 5; 313} 314 315static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog) 316{ 317 return (elog->byte1 & 0x18) >> 3; 318} 319 320static inline 321void rtas_set_disposition_recovered(struct rtas_error_log *elog) 322{ 323 elog->byte1 &= ~0x18; 324 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3); 325} 326 327static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog) 328{ 329 return (elog->byte1 & 0x04) >> 2; 330} 331 332static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog) 333{ 334 return (elog->byte2 & 0xf0) >> 4; 335} 336 337#define rtas_error_type(x) ((x)->byte3) 338 339static inline 340uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog) 341{ 342 return be32_to_cpu(elog->extended_log_length); 343} 344 345#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14 346 347#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8)) 348 349static 350inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log) 351{ 352 return ext_log->byte2 & 0x0F; 353} 354 355static 356inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log) 357{ 358 return be32_to_cpu(ext_log->company_id); 359} 360 361/* pSeries event log format */ 362 363/* Two bytes ASCII section IDs */ 364#define PSERIES_ELOG_SECT_ID_PRIV_HDR (('P' << 8) | 'H') 365#define PSERIES_ELOG_SECT_ID_USER_HDR (('U' << 8) | 'H') 366#define PSERIES_ELOG_SECT_ID_PRIMARY_SRC (('P' << 8) | 'S') 367#define PSERIES_ELOG_SECT_ID_EXTENDED_UH (('E' << 8) | 'H') 368#define PSERIES_ELOG_SECT_ID_FAILING_MTMS (('M' << 8) | 'T') 369#define PSERIES_ELOG_SECT_ID_SECONDARY_SRC (('S' << 8) | 'S') 370#define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR (('D' << 8) | 'H') 371#define PSERIES_ELOG_SECT_ID_FW_ERROR (('S' << 8) | 'W') 372#define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID (('L' << 8) | 'P') 373#define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID (('L' << 8) | 'R') 374#define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M') 375#define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P') 376#define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E') 377#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I') 378#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H') 379#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D') 380#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P') 381#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C') 382 383static 384inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect) 385{ 386 return be16_to_cpu(sect->id); 387} 388 389static 390inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect) 391{ 392 return be16_to_cpu(sect->length); 393} 394 395#define PSERIES_HP_ELOG_RESOURCE_CPU 1 396#define PSERIES_HP_ELOG_RESOURCE_MEM 2 397#define PSERIES_HP_ELOG_RESOURCE_SLOT 3 398#define PSERIES_HP_ELOG_RESOURCE_PHB 4 399#define PSERIES_HP_ELOG_RESOURCE_PMEM 6 400 401#define PSERIES_HP_ELOG_ACTION_ADD 1 402#define PSERIES_HP_ELOG_ACTION_REMOVE 2 403 404#define PSERIES_HP_ELOG_ID_DRC_NAME 1 405#define PSERIES_HP_ELOG_ID_DRC_INDEX 2 406#define PSERIES_HP_ELOG_ID_DRC_COUNT 3 407#define PSERIES_HP_ELOG_ID_DRC_IC 4 408 409struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, 410 uint16_t section_id); 411 412/* 413 * This can be set by the rtas_flash module so that it can get called 414 * as the absolutely last thing before the kernel terminates. 415 */ 416extern void (*rtas_flash_term_hook)(int); 417 418extern struct rtas_t rtas; 419 420s32 rtas_function_token(const rtas_fn_handle_t handle); 421static inline bool rtas_function_implemented(const rtas_fn_handle_t handle) 422{ 423 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE; 424} 425int rtas_token(const char *service); 426int rtas_call(int token, int nargs, int nret, int *outputs, ...); 427void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, 428 int nret, ...); 429void __noreturn rtas_restart(char *cmd); 430void rtas_power_off(void); 431void __noreturn rtas_halt(void); 432void rtas_os_term(char *str); 433void rtas_activate_firmware(void); 434int rtas_get_sensor(int sensor, int index, int *state); 435int rtas_get_sensor_fast(int sensor, int index, int *state); 436int rtas_get_power_level(int powerdomain, int *level); 437int rtas_set_power_level(int powerdomain, int level, int *setlevel); 438bool rtas_indicator_present(int token, int *maxindex); 439int rtas_set_indicator(int indicator, int index, int new_value); 440int rtas_set_indicator_fast(int indicator, int index, int new_value); 441void rtas_progress(char *s, unsigned short hex); 442int rtas_ibm_suspend_me(int *fw_status); 443int rtas_error_rc(int rtas_rc); 444 445struct rtc_time; 446time64_t rtas_get_boot_time(void); 447void rtas_get_rtc_time(struct rtc_time *rtc_time); 448int rtas_set_rtc_time(struct rtc_time *rtc_time); 449 450unsigned int rtas_busy_delay_time(int status); 451bool rtas_busy_delay(int status); 452 453int early_init_dt_scan_rtas(unsigned long node, const char *uname, int depth, void *data); 454 455void pSeries_log_error(char *buf, unsigned int err_type, int fatal); 456 457#ifdef CONFIG_PPC_PSERIES 458extern time64_t last_rtas_event; 459int clobbering_unread_rtas_event(void); 460int rtas_syscall_dispatch_ibm_suspend_me(u64 handle); 461#else 462static inline int clobbering_unread_rtas_event(void) { return 0; } 463static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle) 464{ 465 return -EINVAL; 466} 467#endif 468 469#ifdef CONFIG_PPC_RTAS_DAEMON 470void rtas_cancel_event_scan(void); 471#else 472static inline void rtas_cancel_event_scan(void) { } 473#endif 474 475/* Error types logged. */ 476#define ERR_FLAG_ALREADY_LOGGED 0x0 477#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */ 478#define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */ 479#define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */ 480#define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */ 481 482/* All the types and not flags */ 483#define ERR_TYPE_MASK \ 484 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ) 485 486#define RTAS_DEBUG KERN_DEBUG "RTAS: " 487 488#define RTAS_ERROR_LOG_MAX 2048 489 490/* 491 * Return the firmware-specified size of the error log buffer 492 * for all rtas calls that require an error buffer argument. 493 * This includes 'check-exception' and 'rtas-last-error'. 494 */ 495int rtas_get_error_log_max(void); 496 497/* Event Scan Parameters */ 498#define EVENT_SCAN_ALL_EVENTS 0xf0000000 499#define SURVEILLANCE_TOKEN 9000 500#define LOG_NUMBER 64 /* must be a power of two */ 501#define LOG_NUMBER_MASK (LOG_NUMBER-1) 502 503/* Some RTAS ops require a data buffer and that buffer must be < 4G. 504 * Rather than having a memory allocator, just use this buffer 505 * (get the lock first), make the RTAS call. Copy the data instead 506 * of holding the buffer for long. 507 */ 508 509#define RTAS_DATA_BUF_SIZE 4096 510extern spinlock_t rtas_data_buf_lock; 511extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; 512 513/* RMO buffer reserved for user-space RTAS use */ 514extern unsigned long rtas_rmo_buf; 515 516extern struct mutex rtas_ibm_get_vpd_lock; 517 518#define GLOBAL_INTERRUPT_QUEUE 9005 519 520/** 521 * rtas_config_addr - Format a busno, devfn and reg for RTAS. 522 * @busno: The bus number. 523 * @devfn: The device and function number as encoded by PCI_DEVFN(). 524 * @reg: The register number. 525 * 526 * This function encodes the given busno, devfn and register number as 527 * required for RTAS calls that take a "config_addr" parameter. 528 * See PAPR requirement 7.3.4-1 for more info. 529 */ 530static inline u32 rtas_config_addr(int busno, int devfn, int reg) 531{ 532 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) | 533 (devfn << 8) | (reg & 0xff); 534} 535 536void rtas_give_timebase(void); 537void rtas_take_timebase(void); 538 539#ifdef CONFIG_PPC_RTAS 540static inline int page_is_rtas_user_buf(unsigned long pfn) 541{ 542 unsigned long paddr = (pfn << PAGE_SHIFT); 543 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE)) 544 return 1; 545 return 0; 546} 547 548/* Not the best place to put pSeries_coalesce_init, will be fixed when we 549 * move some of the rtas suspend-me stuff to pseries */ 550void pSeries_coalesce_init(void); 551void rtas_initialize(void); 552#else 553static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;} 554static inline void pSeries_coalesce_init(void) { } 555static inline void rtas_initialize(void) { } 556#endif 557 558#ifdef CONFIG_HV_PERF_CTRS 559void read_24x7_sys_info(void); 560#else 561static inline void read_24x7_sys_info(void) { } 562#endif 563 564#endif /* __KERNEL__ */ 565#endif /* _POWERPC_RTAS_H */ 566