| 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 | |
| 296 | static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog) |
| 297 | { |
| 298 | return (elog->byte1 & 0xE0) >> 5; |
| 299 | } |
| 300 | |
| 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 |
| 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 | |
| 313 | static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog) |
| 314 | { |
| 315 | return (elog->byte1 & 0x04) >> 2; |
| 316 | } |
| 317 | |
| 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 |
| 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 |
| 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 |
| 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 |
| 370 | inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect) |
| 371 | { |
| 372 | return be16_to_cpu(sect->id); |
| 373 | } |
| 374 | |
| 375 | static |
| 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); |
| 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_call(int token, int, int, int *, ...); |
| 413 | void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, |
| 414 | int nret, ...); |
| 415 | extern void __noreturn rtas_restart(char *cmd); |
| 416 | extern void rtas_power_off(void); |
| 417 | extern void __noreturn rtas_halt(void); |
| 418 | extern void rtas_os_term(char *str); |
| 419 | void rtas_activate_firmware(void); |
| 420 | extern int rtas_get_sensor(int sensor, int index, int *state); |
| 421 | extern int rtas_get_sensor_fast(int sensor, int index, int *state); |
| 422 | extern int rtas_get_power_level(int powerdomain, int *level); |
| 423 | extern int rtas_set_power_level(int powerdomain, int level, int *setlevel); |
| 424 | extern bool rtas_indicator_present(int token, int *maxindex); |
| 425 | extern int rtas_set_indicator(int indicator, int index, int new_value); |
| 426 | extern int rtas_set_indicator_fast(int indicator, int index, int new_value); |
| 427 | extern void rtas_progress(char *s, unsigned short hex); |
| 428 | int rtas_ibm_suspend_me(int *fw_status); |
| 429 | int rtas_error_rc(int rtas_rc); |
| 430 | |
| 431 | struct rtc_time; |
| 432 | extern time64_t rtas_get_boot_time(void); |
| 433 | extern void rtas_get_rtc_time(struct rtc_time *rtc_time); |
| 434 | extern int rtas_set_rtc_time(struct rtc_time *rtc_time); |
| 435 | |
| 436 | extern unsigned int rtas_busy_delay_time(int status); |
| 437 | bool rtas_busy_delay(int status); |
| 438 | |
| 439 | extern int early_init_dt_scan_rtas(unsigned long node, |
| 440 | const char *uname, int depth, void *data); |
| 441 | |
| 442 | extern void pSeries_log_error(char *buf, unsigned int err_type, int fatal); |
| 443 | |
| 444 | #ifdef CONFIG_PPC_PSERIES |
| 445 | extern time64_t last_rtas_event; |
| 446 | extern int clobbering_unread_rtas_event(void); |
| 447 | extern void post_mobility_fixup(void); |
| 448 | int rtas_syscall_dispatch_ibm_suspend_me(u64 handle); |
| 449 | #else |
| 450 | static inline int clobbering_unread_rtas_event(void) { return 0; } |
| 451 | static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle) |
| 452 | { |
| 453 | return -EINVAL; |
| 454 | } |
| 455 | #endif |
| 456 | |
| 457 | #ifdef CONFIG_PPC_RTAS_DAEMON |
| 458 | extern void rtas_cancel_event_scan(void); |
| 459 | #else |
| 460 | static inline void rtas_cancel_event_scan(void) { } |
| 461 | #endif |
| 462 | |
| 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 */ |
| 467 | #define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */ |
| 468 | #define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */ |
| 469 | |
| 470 | /* All the types and not flags */ |
| 471 | #define ERR_TYPE_MASK \ |
| 472 | (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ) |
| 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 | */ |
| 483 | extern 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 |
| 498 | extern spinlock_t rtas_data_buf_lock; |
| 499 | extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; |
| 500 | |
| 501 | /* RMO buffer reserved for user-space RTAS use */ |
| 502 | extern unsigned long rtas_rmo_buf; |
| 503 | |
| 504 | #define GLOBAL_INTERRUPT_QUEUE 9005 |
| 505 | |
| 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 | */ |
| 516 | static 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 | |
| 522 | extern void rtas_give_timebase(void); |
| 523 | extern void rtas_take_timebase(void); |
| 524 | |
| 525 | #ifdef CONFIG_PPC_RTAS |
| 526 | static inline int page_is_rtas_user_buf(unsigned long pfn) |
| 527 | { |
| 528 | unsigned long paddr = (pfn << PAGE_SHIFT); |
| 529 | if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE)) |
| 530 | return 1; |
| 531 | return 0; |
| 532 | } |
| 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 */ |
| 536 | extern void pSeries_coalesce_init(void); |
| 537 | void rtas_initialize(void); |
| 538 | #else |
| 539 | static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;} |
| 540 | static inline void pSeries_coalesce_init(void) { } |
| 541 | static inline void rtas_initialize(void) { } |
| 542 | #endif |
| 543 | |
| 544 | #ifdef CONFIG_HV_PERF_CTRS |
| 545 | void read_24x7_sys_info(void); |
| 546 | #else |
| 547 | static inline void read_24x7_sys_info(void) { } |
| 548 | #endif |
| 549 | |
| 550 | #endif /* __KERNEL__ */ |
| 551 | #endif /* _POWERPC_RTAS_H */ |