FILE
rtas.h
File preview with syntax highlighting.
linux-6.19.14/arch/powerpc/include/asm/rtas.h
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_RECEIVE_HVPIPE_MSG, 72 RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW, 73 RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW, 74 RTAS_FNIDX__IBM_SCAN_LOG_DUMP, 75 RTAS_FNIDX__IBM_SEND_HVPIPE_MSG, 76 RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR, 77 RTAS_FNIDX__IBM_SET_EEH_OPTION, 78 RTAS_FNIDX__IBM_SET_SLOT_RESET, 79 RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER, 80 RTAS_FNIDX__IBM_SET_XIVE, 81 RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL, 82 RTAS_FNIDX__IBM_SUSPEND_ME, 83 RTAS_FNIDX__IBM_TUNE_DMA_PARMS, 84 RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT, 85 RTAS_FNIDX__IBM_UPDATE_NODES, 86 RTAS_FNIDX__IBM_UPDATE_PROPERTIES, 87 RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE, 88 RTAS_FNIDX__IBM_WRITE_PCI_CONFIG, 89 RTAS_FNIDX__NVRAM_FETCH, 90 RTAS_FNIDX__NVRAM_STORE, 91 RTAS_FNIDX__POWER_OFF, 92 RTAS_FNIDX__PUT_TERM_CHAR, 93 RTAS_FNIDX__QUERY_CPU_STOPPED_STATE, 94 RTAS_FNIDX__READ_PCI_CONFIG, 95 RTAS_FNIDX__RTAS_LAST_ERROR, 96 RTAS_FNIDX__SET_INDICATOR, 97 RTAS_FNIDX__SET_POWER_LEVEL, 98 RTAS_FNIDX__SET_TIME_FOR_POWER_ON, 99 RTAS_FNIDX__SET_TIME_OF_DAY, 100 RTAS_FNIDX__START_CPU, 101 RTAS_FNIDX__STOP_SELF, 102 RTAS_FNIDX__SYSTEM_REBOOT, 103 RTAS_FNIDX__THAW_TIME_BASE, 104 RTAS_FNIDX__WRITE_PCI_CONFIG, 105}; 106 107/* 108 * Opaque handle for client code to refer to RTAS functions. All valid 109 * function handles are build-time constants prefixed with RTAS_FN_. 110 */ 111typedef struct { 112 const enum rtas_function_index index; 113} rtas_fn_handle_t; 114 115 116#define rtas_fn_handle(x_) ((const rtas_fn_handle_t) { .index = x_, }) 117 118#define RTAS_FN_CHECK_EXCEPTION rtas_fn_handle(RTAS_FNIDX__CHECK_EXCEPTION) 119#define RTAS_FN_DISPLAY_CHARACTER rtas_fn_handle(RTAS_FNIDX__DISPLAY_CHARACTER) 120#define RTAS_FN_EVENT_SCAN rtas_fn_handle(RTAS_FNIDX__EVENT_SCAN) 121#define RTAS_FN_FREEZE_TIME_BASE rtas_fn_handle(RTAS_FNIDX__FREEZE_TIME_BASE) 122#define RTAS_FN_GET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__GET_POWER_LEVEL) 123#define RTAS_FN_GET_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__GET_SENSOR_STATE) 124#define RTAS_FN_GET_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__GET_TERM_CHAR) 125#define RTAS_FN_GET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__GET_TIME_OF_DAY) 126#define RTAS_FN_IBM_ACTIVATE_FIRMWARE rtas_fn_handle(RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE) 127#define RTAS_FN_IBM_CBE_START_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_START_PTCAL) 128#define RTAS_FN_IBM_CBE_STOP_PTCAL rtas_fn_handle(RTAS_FNIDX__IBM_CBE_STOP_PTCAL) 129#define RTAS_FN_IBM_CHANGE_MSI rtas_fn_handle(RTAS_FNIDX__IBM_CHANGE_MSI) 130#define RTAS_FN_IBM_CLOSE_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_CLOSE_ERRINJCT) 131#define RTAS_FN_IBM_CONFIGURE_BRIDGE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_BRIDGE) 132#define RTAS_FN_IBM_CONFIGURE_CONNECTOR rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR) 133#define RTAS_FN_IBM_CONFIGURE_KERNEL_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP) 134#define RTAS_FN_IBM_CONFIGURE_PE rtas_fn_handle(RTAS_FNIDX__IBM_CONFIGURE_PE) 135#define RTAS_FN_IBM_CREATE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW) 136#define RTAS_FN_IBM_DISPLAY_MESSAGE rtas_fn_handle(RTAS_FNIDX__IBM_DISPLAY_MESSAGE) 137#define RTAS_FN_IBM_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_ERRINJCT) 138#define RTAS_FN_IBM_EXTI2C rtas_fn_handle(RTAS_FNIDX__IBM_EXTI2C) 139#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO) 140#define RTAS_FN_IBM_GET_CONFIG_ADDR_INFO2 rtas_fn_handle(RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2) 141#define RTAS_FN_IBM_GET_DYNAMIC_SENSOR_STATE rtas_fn_handle(RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE) 142#define RTAS_FN_IBM_GET_INDICES rtas_fn_handle(RTAS_FNIDX__IBM_GET_INDICES) 143#define RTAS_FN_IBM_GET_RIO_TOPOLOGY rtas_fn_handle(RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY) 144#define RTAS_FN_IBM_GET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER) 145#define RTAS_FN_IBM_GET_VPD rtas_fn_handle(RTAS_FNIDX__IBM_GET_VPD) 146#define RTAS_FN_IBM_GET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_GET_XIVE) 147#define RTAS_FN_IBM_INT_OFF rtas_fn_handle(RTAS_FNIDX__IBM_INT_OFF) 148#define RTAS_FN_IBM_INT_ON rtas_fn_handle(RTAS_FNIDX__IBM_INT_ON) 149#define RTAS_FN_IBM_IO_QUIESCE_ACK rtas_fn_handle(RTAS_FNIDX__IBM_IO_QUIESCE_ACK) 150#define RTAS_FN_IBM_LPAR_PERFTOOLS rtas_fn_handle(RTAS_FNIDX__IBM_LPAR_PERFTOOLS) 151#define RTAS_FN_IBM_MANAGE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE) 152#define RTAS_FN_IBM_MANAGE_STORAGE_PRESERVATION rtas_fn_handle(RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION) 153#define RTAS_FN_IBM_NMI_INTERLOCK rtas_fn_handle(RTAS_FNIDX__IBM_NMI_INTERLOCK) 154#define RTAS_FN_IBM_NMI_REGISTER rtas_fn_handle(RTAS_FNIDX__IBM_NMI_REGISTER) 155#define RTAS_FN_IBM_OPEN_ERRINJCT rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_ERRINJCT) 156#define RTAS_FN_IBM_OPEN_SRIOV_ALLOW_UNFREEZE rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE) 157#define RTAS_FN_IBM_OPEN_SRIOV_MAP_PE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER) 158#define RTAS_FN_IBM_OS_TERM rtas_fn_handle(RTAS_FNIDX__IBM_OS_TERM) 159#define RTAS_FN_IBM_PARTNER_CONTROL rtas_fn_handle(RTAS_FNIDX__IBM_PARTNER_CONTROL) 160#define RTAS_FN_IBM_PHYSICAL_ATTESTATION rtas_fn_handle(RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION) 161#define RTAS_FN_IBM_PLATFORM_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_PLATFORM_DUMP) 162#define RTAS_FN_IBM_POWER_OFF_UPS rtas_fn_handle(RTAS_FNIDX__IBM_POWER_OFF_UPS) 163#define RTAS_FN_IBM_QUERY_INTERRUPT_SOURCE_NUMBER rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER) 164#define RTAS_FN_IBM_QUERY_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW) 165#define RTAS_FN_IBM_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_READ_PCI_CONFIG) 166#define RTAS_FN_IBM_READ_SLOT_RESET_STATE rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE) 167#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2 rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2) 168#define RTAS_FN_IBM_RECEIVE_HVPIPE_MSG rtas_fn_handle(RTAS_FNIDX__IBM_RECEIVE_HVPIPE_MSG) 169#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW) 170#define RTAS_FN_IBM_RESET_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW) 171#define RTAS_FN_IBM_SCAN_LOG_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP) 172#define RTAS_FN_IBM_SEND_HVPIPE_MSG rtas_fn_handle(RTAS_FNIDX__IBM_SEND_HVPIPE_MSG) 173#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR) 174#define RTAS_FN_IBM_SET_EEH_OPTION rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION) 175#define RTAS_FN_IBM_SET_SLOT_RESET rtas_fn_handle(RTAS_FNIDX__IBM_SET_SLOT_RESET) 176#define RTAS_FN_IBM_SET_SYSTEM_PARAMETER rtas_fn_handle(RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER) 177#define RTAS_FN_IBM_SET_XIVE rtas_fn_handle(RTAS_FNIDX__IBM_SET_XIVE) 178#define RTAS_FN_IBM_SLOT_ERROR_DETAIL rtas_fn_handle(RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL) 179#define RTAS_FN_IBM_SUSPEND_ME rtas_fn_handle(RTAS_FNIDX__IBM_SUSPEND_ME) 180#define RTAS_FN_IBM_TUNE_DMA_PARMS rtas_fn_handle(RTAS_FNIDX__IBM_TUNE_DMA_PARMS) 181#define RTAS_FN_IBM_UPDATE_FLASH_64_AND_REBOOT rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT) 182#define RTAS_FN_IBM_UPDATE_NODES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_NODES) 183#define RTAS_FN_IBM_UPDATE_PROPERTIES rtas_fn_handle(RTAS_FNIDX__IBM_UPDATE_PROPERTIES) 184#define RTAS_FN_IBM_VALIDATE_FLASH_IMAGE rtas_fn_handle(RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE) 185#define RTAS_FN_IBM_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_WRITE_PCI_CONFIG) 186#define RTAS_FN_NVRAM_FETCH rtas_fn_handle(RTAS_FNIDX__NVRAM_FETCH) 187#define RTAS_FN_NVRAM_STORE rtas_fn_handle(RTAS_FNIDX__NVRAM_STORE) 188#define RTAS_FN_POWER_OFF rtas_fn_handle(RTAS_FNIDX__POWER_OFF) 189#define RTAS_FN_PUT_TERM_CHAR rtas_fn_handle(RTAS_FNIDX__PUT_TERM_CHAR) 190#define RTAS_FN_QUERY_CPU_STOPPED_STATE rtas_fn_handle(RTAS_FNIDX__QUERY_CPU_STOPPED_STATE) 191#define RTAS_FN_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__READ_PCI_CONFIG) 192#define RTAS_FN_RTAS_LAST_ERROR rtas_fn_handle(RTAS_FNIDX__RTAS_LAST_ERROR) 193#define RTAS_FN_SET_INDICATOR rtas_fn_handle(RTAS_FNIDX__SET_INDICATOR) 194#define RTAS_FN_SET_POWER_LEVEL rtas_fn_handle(RTAS_FNIDX__SET_POWER_LEVEL) 195#define RTAS_FN_SET_TIME_FOR_POWER_ON rtas_fn_handle(RTAS_FNIDX__SET_TIME_FOR_POWER_ON) 196#define RTAS_FN_SET_TIME_OF_DAY rtas_fn_handle(RTAS_FNIDX__SET_TIME_OF_DAY) 197#define RTAS_FN_START_CPU rtas_fn_handle(RTAS_FNIDX__START_CPU) 198#define RTAS_FN_STOP_SELF rtas_fn_handle(RTAS_FNIDX__STOP_SELF) 199#define RTAS_FN_SYSTEM_REBOOT rtas_fn_handle(RTAS_FNIDX__SYSTEM_REBOOT) 200#define RTAS_FN_THAW_TIME_BASE rtas_fn_handle(RTAS_FNIDX__THAW_TIME_BASE) 201#define RTAS_FN_WRITE_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__WRITE_PCI_CONFIG) 202 203#define RTAS_UNKNOWN_SERVICE (-1) 204#define RTAS_INSTANTIATE_MAX (1ULL<<30) /* Don't instantiate rtas at/above this value */ 205 206/* Memory set aside for sys_rtas to use with calls that need a work area. */ 207#define RTAS_USER_REGION_SIZE (64 * 1024) 208 209/* 210 * Common RTAS function return values, derived from the table "RTAS 211 * Status Word Values" in PAPR+ v2.13 7.2.8: "Return Codes". If a 212 * function can return a value in this table then generally it has the 213 * meaning listed here. More extended commentary in the documentation 214 * for rtas_call(). 215 * 216 * RTAS functions may use negative and positive numbers not in this 217 * set for function-specific error and success conditions, 218 * respectively. 219 */ 220#define RTAS_SUCCESS 0 /* Success. */ 221#define RTAS_HARDWARE_ERROR -1 /* Hardware or other unspecified error. */ 222#define RTAS_BUSY -2 /* Retry immediately. */ 223#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */ 224#define RTAS_FUNC_NOT_SUPPORTED -5 /* Function not supported */ 225#define RTAS_UNEXPECTED_STATE_CHANGE -7 /* Seems limited to EEH and slot reset. */ 226#define RTAS_EXTENDED_DELAY_MIN 9900 /* Retry after delaying for ~1ms. */ 227#define RTAS_EXTENDED_DELAY_MAX 9905 /* Retry after delaying for ~100s. */ 228#define RTAS_ML_ISOLATION_ERROR -9000 /* Multi-level isolation error. */ 229 230/* statuses specific to ibm,suspend-me */ 231#define RTAS_SUSPEND_ABORTED 9000 /* Suspension aborted */ 232#define RTAS_NOT_SUSPENDABLE -9004 /* Partition not suspendable */ 233#define RTAS_THREADS_ACTIVE -9005 /* Multiple processor threads active */ 234#define RTAS_OUTSTANDING_COPROC -9006 /* Outstanding coprocessor operations */ 235 236/* RTAS event classes */ 237#define RTAS_INTERNAL_ERROR 0x80000000 /* set bit 0 */ 238#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */ 239#define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */ 240#define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */ 241#define RTAS_HVPIPE_MSG_EVENTS 0x04000000 /* set bit 5 */ 242#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff 243 244/* RTAS event severity */ 245#define RTAS_SEVERITY_FATAL 0x5 246#define RTAS_SEVERITY_ERROR 0x4 247#define RTAS_SEVERITY_ERROR_SYNC 0x3 248#define RTAS_SEVERITY_WARNING 0x2 249#define RTAS_SEVERITY_EVENT 0x1 250#define RTAS_SEVERITY_NO_ERROR 0x0 251 252/* RTAS event disposition */ 253#define RTAS_DISP_FULLY_RECOVERED 0x0 254#define RTAS_DISP_LIMITED_RECOVERY 0x1 255#define RTAS_DISP_NOT_RECOVERED 0x2 256 257/* RTAS event initiator */ 258#define RTAS_INITIATOR_UNKNOWN 0x0 259#define RTAS_INITIATOR_CPU 0x1 260#define RTAS_INITIATOR_PCI 0x2 261#define RTAS_INITIATOR_ISA 0x3 262#define RTAS_INITIATOR_MEMORY 0x4 263#define RTAS_INITIATOR_POWERMGM 0x5 264 265/* RTAS event target */ 266#define RTAS_TARGET_UNKNOWN 0x0 267#define RTAS_TARGET_CPU 0x1 268#define RTAS_TARGET_PCI 0x2 269#define RTAS_TARGET_ISA 0x3 270#define RTAS_TARGET_MEMORY 0x4 271#define RTAS_TARGET_POWERMGM 0x5 272 273/* RTAS event type */ 274#define RTAS_TYPE_RETRY 0x01 275#define RTAS_TYPE_TCE_ERR 0x02 276#define RTAS_TYPE_INTERN_DEV_FAIL 0x03 277#define RTAS_TYPE_TIMEOUT 0x04 278#define RTAS_TYPE_DATA_PARITY 0x05 279#define RTAS_TYPE_ADDR_PARITY 0x06 280#define RTAS_TYPE_CACHE_PARITY 0x07 281#define RTAS_TYPE_ADDR_INVALID 0x08 282#define RTAS_TYPE_ECC_UNCORR 0x09 283#define RTAS_TYPE_ECC_CORR 0x0a 284#define RTAS_TYPE_EPOW 0x40 285#define RTAS_TYPE_PLATFORM 0xE0 286#define RTAS_TYPE_IO 0xE1 287#define RTAS_TYPE_INFO 0xE2 288#define RTAS_TYPE_DEALLOC 0xE3 289#define RTAS_TYPE_DUMP 0xE4 290#define RTAS_TYPE_HOTPLUG 0xE5 291#define RTAS_TYPE_HVPIPE 0xE6 292/* I don't add PowerMGM events right now, this is a different topic */ 293#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60 294#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61 295#define RTAS_TYPE_PMGM_LID_OPEN 0x62 296#define RTAS_TYPE_PMGM_LID_CLOSE 0x63 297#define RTAS_TYPE_PMGM_SLEEP_BTN 0x64 298#define RTAS_TYPE_PMGM_WAKE_BTN 0x65 299#define RTAS_TYPE_PMGM_BATTERY_WARN 0x66 300#define RTAS_TYPE_PMGM_BATTERY_CRIT 0x67 301#define RTAS_TYPE_PMGM_SWITCH_TO_BAT 0x68 302#define RTAS_TYPE_PMGM_SWITCH_TO_AC 0x69 303#define RTAS_TYPE_PMGM_KBD_OR_MOUSE 0x6a 304#define RTAS_TYPE_PMGM_ENCLOS_OPEN 0x6b 305#define RTAS_TYPE_PMGM_ENCLOS_CLOSED 0x6c 306#define RTAS_TYPE_PMGM_RING_INDICATE 0x6d 307#define RTAS_TYPE_PMGM_LAN_ATTENTION 0x6e 308#define RTAS_TYPE_PMGM_TIME_ALARM 0x6f 309#define RTAS_TYPE_PMGM_CONFIG_CHANGE 0x70 310#define RTAS_TYPE_PMGM_SERVICE_PROC 0x71 311/* Platform Resource Reassignment Notification */ 312#define RTAS_TYPE_PRRN 0xA0 313 314/* RTAS check-exception vector offset */ 315#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500 316 317static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog) 318{ 319 return (elog->byte1 & 0xE0) >> 5; 320} 321 322static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog) 323{ 324 return (elog->byte1 & 0x18) >> 3; 325} 326 327static inline 328void rtas_set_disposition_recovered(struct rtas_error_log *elog) 329{ 330 elog->byte1 &= ~0x18; 331 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3); 332} 333 334static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog) 335{ 336 return (elog->byte1 & 0x04) >> 2; 337} 338 339static inline uint8_t rtas_error_initiator(const struct rtas_error_log *elog) 340{ 341 return (elog->byte2 & 0xf0) >> 4; 342} 343 344#define rtas_error_type(x) ((x)->byte3) 345 346static inline 347uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog) 348{ 349 return be32_to_cpu(elog->extended_log_length); 350} 351 352#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14 353 354#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8)) 355 356static 357inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log) 358{ 359 return ext_log->byte2 & 0x0F; 360} 361 362static 363inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log) 364{ 365 return be32_to_cpu(ext_log->company_id); 366} 367 368/* pSeries event log format */ 369 370/* Two bytes ASCII section IDs */ 371#define PSERIES_ELOG_SECT_ID_PRIV_HDR (('P' << 8) | 'H') 372#define PSERIES_ELOG_SECT_ID_USER_HDR (('U' << 8) | 'H') 373#define PSERIES_ELOG_SECT_ID_PRIMARY_SRC (('P' << 8) | 'S') 374#define PSERIES_ELOG_SECT_ID_EXTENDED_UH (('E' << 8) | 'H') 375#define PSERIES_ELOG_SECT_ID_FAILING_MTMS (('M' << 8) | 'T') 376#define PSERIES_ELOG_SECT_ID_SECONDARY_SRC (('S' << 8) | 'S') 377#define PSERIES_ELOG_SECT_ID_DUMP_LOCATOR (('D' << 8) | 'H') 378#define PSERIES_ELOG_SECT_ID_FW_ERROR (('S' << 8) | 'W') 379#define PSERIES_ELOG_SECT_ID_IMPACT_PART_ID (('L' << 8) | 'P') 380#define PSERIES_ELOG_SECT_ID_LOGIC_RESOURCE_ID (('L' << 8) | 'R') 381#define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M') 382#define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P') 383#define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E') 384#define PSERIES_ELOG_SECT_ID_HVPIPE_EVENT (('P' << 8) | 'E') 385#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I') 386#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H') 387#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D') 388#define PSERIES_ELOG_SECT_ID_HOTPLUG (('H' << 8) | 'P') 389#define PSERIES_ELOG_SECT_ID_MCE (('M' << 8) | 'C') 390 391static 392inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect) 393{ 394 return be16_to_cpu(sect->id); 395} 396 397static 398inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect) 399{ 400 return be16_to_cpu(sect->length); 401} 402 403#define PSERIES_HP_ELOG_RESOURCE_CPU 1 404#define PSERIES_HP_ELOG_RESOURCE_MEM 2 405#define PSERIES_HP_ELOG_RESOURCE_SLOT 3 406#define PSERIES_HP_ELOG_RESOURCE_PHB 4 407#define PSERIES_HP_ELOG_RESOURCE_PMEM 6 408#define PSERIES_HP_ELOG_RESOURCE_DT 7 409 410#define PSERIES_HP_ELOG_ACTION_ADD 1 411#define PSERIES_HP_ELOG_ACTION_REMOVE 2 412 413#define PSERIES_HP_ELOG_ID_DRC_NAME 1 414#define PSERIES_HP_ELOG_ID_DRC_INDEX 2 415#define PSERIES_HP_ELOG_ID_DRC_COUNT 3 416#define PSERIES_HP_ELOG_ID_DRC_IC 4 417 418struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, 419 uint16_t section_id); 420 421/* 422 * This can be set by the rtas_flash module so that it can get called 423 * as the absolutely last thing before the kernel terminates. 424 */ 425extern void (*rtas_flash_term_hook)(int); 426 427extern struct rtas_t rtas; 428 429s32 rtas_function_token(const rtas_fn_handle_t handle); 430static inline bool rtas_function_implemented(const rtas_fn_handle_t handle) 431{ 432 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE; 433} 434int rtas_token(const char *service); 435int rtas_call(int token, int nargs, int nret, int *outputs, ...); 436void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, 437 int nret, ...); 438void __noreturn rtas_restart(char *cmd); 439void rtas_power_off(void); 440void __noreturn rtas_halt(void); 441void rtas_os_term(char *str); 442void rtas_activate_firmware(void); 443int rtas_get_sensor(int sensor, int index, int *state); 444int rtas_get_sensor_fast(int sensor, int index, int *state); 445int rtas_get_power_level(int powerdomain, int *level); 446int rtas_set_power_level(int powerdomain, int level, int *setlevel); 447bool rtas_indicator_present(int token, int *maxindex); 448int rtas_set_indicator(int indicator, int index, int new_value); 449int rtas_set_indicator_fast(int indicator, int index, int new_value); 450void rtas_progress(char *s, unsigned short hex); 451int rtas_ibm_suspend_me(int *fw_status); 452int rtas_error_rc(int rtas_rc); 453 454struct rtc_time; 455time64_t rtas_get_boot_time(void); 456void rtas_get_rtc_time(struct rtc_time *rtc_time); 457int rtas_set_rtc_time(struct rtc_time *rtc_time); 458 459unsigned int rtas_busy_delay_time(int status); 460bool rtas_busy_delay(int status); 461 462int early_init_dt_scan_rtas(unsigned long node, const char *uname, int depth, void *data); 463 464void pSeries_log_error(char *buf, unsigned int err_type, int fatal); 465 466#ifdef CONFIG_PPC_PSERIES 467extern time64_t last_rtas_event; 468int clobbering_unread_rtas_event(void); 469int rtas_syscall_dispatch_ibm_suspend_me(u64 handle); 470#else 471static inline int clobbering_unread_rtas_event(void) { return 0; } 472static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle) 473{ 474 return -EINVAL; 475} 476#endif 477 478#ifdef CONFIG_PPC_RTAS_DAEMON 479void rtas_cancel_event_scan(void); 480#else 481static inline void rtas_cancel_event_scan(void) { } 482#endif 483 484/* Error types logged. */ 485#define ERR_FLAG_ALREADY_LOGGED 0x0 486#define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */ 487#define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */ 488#define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */ 489#define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */ 490 491/* All the types and not flags */ 492#define ERR_TYPE_MASK \ 493 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ) 494 495#define RTAS_DEBUG KERN_DEBUG "RTAS: " 496 497#define RTAS_ERROR_LOG_MAX 2048 498 499/* 500 * Return the firmware-specified size of the error log buffer 501 * for all rtas calls that require an error buffer argument. 502 * This includes 'check-exception' and 'rtas-last-error'. 503 */ 504int rtas_get_error_log_max(void); 505 506/* Event Scan Parameters */ 507#define EVENT_SCAN_ALL_EVENTS 0xf0000000 508#define SURVEILLANCE_TOKEN 9000 509#define LOG_NUMBER 64 /* must be a power of two */ 510#define LOG_NUMBER_MASK (LOG_NUMBER-1) 511 512/* Some RTAS ops require a data buffer and that buffer must be < 4G. 513 * Rather than having a memory allocator, just use this buffer 514 * (get the lock first), make the RTAS call. Copy the data instead 515 * of holding the buffer for long. 516 */ 517 518#define RTAS_DATA_BUF_SIZE 4096 519extern spinlock_t rtas_data_buf_lock; 520extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; 521 522/* RMO buffer reserved for user-space RTAS use */ 523extern unsigned long rtas_rmo_buf; 524 525extern struct mutex rtas_ibm_get_vpd_lock; 526extern struct mutex rtas_ibm_get_indices_lock; 527extern struct mutex rtas_ibm_set_dynamic_indicator_lock; 528extern struct mutex rtas_ibm_get_dynamic_sensor_state_lock; 529extern struct mutex rtas_ibm_physical_attestation_lock; 530extern struct mutex rtas_ibm_send_hvpipe_msg_lock; 531 532#define GLOBAL_INTERRUPT_QUEUE 9005 533 534/** 535 * rtas_config_addr - Format a busno, devfn and reg for RTAS. 536 * @busno: The bus number. 537 * @devfn: The device and function number as encoded by PCI_DEVFN(). 538 * @reg: The register number. 539 * 540 * This function encodes the given busno, devfn and register number as 541 * required for RTAS calls that take a "config_addr" parameter. 542 * See PAPR requirement 7.3.4-1 for more info. 543 */ 544static inline u32 rtas_config_addr(int busno, int devfn, int reg) 545{ 546 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) | 547 (devfn << 8) | (reg & 0xff); 548} 549 550void rtas_give_timebase(void); 551void rtas_take_timebase(void); 552 553#ifdef CONFIG_PPC_RTAS 554static inline int page_is_rtas_user_buf(unsigned long pfn) 555{ 556 unsigned long paddr = (pfn << PAGE_SHIFT); 557 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE)) 558 return 1; 559 return 0; 560} 561 562/* Not the best place to put pSeries_coalesce_init, will be fixed when we 563 * move some of the rtas suspend-me stuff to pseries */ 564void pSeries_coalesce_init(void); 565void rtas_initialize(void); 566#else 567static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;} 568static inline void pSeries_coalesce_init(void) { } 569static inline void rtas_initialize(void) { } 570#endif 571 572#ifdef CONFIG_HV_PERF_CTRS 573void read_24x7_sys_info(void); 574#else 575static inline void read_24x7_sys_info(void) { } 576#endif 577 578#endif /* __KERNEL__ */ 579#endif /* _POWERPC_RTAS_H */
~/
Read-only file preview.