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 20 enum 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 */ 109 typedef 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 rtas_error_severity(const struct rtas_error_log * elog)310 static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog) 311 { 312 return (elog->byte1 & 0xE0) >> 5; 313 } 314 rtas_error_disposition(const struct rtas_error_log * elog)315 static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog) 316 { 317 return (elog->byte1 & 0x18) >> 3; 318 } 319 320 static inline rtas_set_disposition_recovered(struct rtas_error_log * elog)321 void rtas_set_disposition_recovered(struct rtas_error_log *elog) 322 { 323 elog->byte1 &= ~0x18; 324 elog->byte1 |= (RTAS_DISP_FULLY_RECOVERED << 3); 325 } 326 rtas_error_extended(const struct rtas_error_log * elog)327 static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog) 328 { 329 return (elog->byte1 & 0x04) >> 2; 330 } 331 rtas_error_initiator(const struct rtas_error_log * elog)332 static 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) 338 339 static inline rtas_error_extended_log_length(const struct rtas_error_log * elog)340 uint32_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)) 348 349 static rtas_ext_event_log_format(struct rtas_ext_event_log_v6 * ext_log)350 inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log) 351 { 352 return ext_log->byte2 & 0x0F; 353 } 354 355 static rtas_ext_event_company_id(struct rtas_ext_event_log_v6 * ext_log)356 inline 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') 382 383 static pseries_errorlog_id(struct pseries_errorlog * sect)384 inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect) 385 { 386 return be16_to_cpu(sect->id); 387 } 388 389 static pseries_errorlog_length(struct pseries_errorlog * sect)390 inline 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 #define PSERIES_HP_ELOG_RESOURCE_DT 7 401 402 #define PSERIES_HP_ELOG_ACTION_ADD 1 403 #define PSERIES_HP_ELOG_ACTION_REMOVE 2 404 405 #define PSERIES_HP_ELOG_ID_DRC_NAME 1 406 #define PSERIES_HP_ELOG_ID_DRC_INDEX 2 407 #define PSERIES_HP_ELOG_ID_DRC_COUNT 3 408 #define PSERIES_HP_ELOG_ID_DRC_IC 4 409 410 struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, 411 uint16_t section_id); 412 413 /* 414 * This can be set by the rtas_flash module so that it can get called 415 * as the absolutely last thing before the kernel terminates. 416 */ 417 extern void (*rtas_flash_term_hook)(int); 418 419 extern struct rtas_t rtas; 420 421 s32 rtas_function_token(const rtas_fn_handle_t handle); rtas_function_implemented(const rtas_fn_handle_t handle)422 static inline bool rtas_function_implemented(const rtas_fn_handle_t handle) 423 { 424 return rtas_function_token(handle) != RTAS_UNKNOWN_SERVICE; 425 } 426 int rtas_token(const char *service); 427 int rtas_call(int token, int nargs, int nret, int *outputs, ...); 428 void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, 429 int nret, ...); 430 void __noreturn rtas_restart(char *cmd); 431 void rtas_power_off(void); 432 void __noreturn rtas_halt(void); 433 void rtas_os_term(char *str); 434 void rtas_activate_firmware(void); 435 int rtas_get_sensor(int sensor, int index, int *state); 436 int rtas_get_sensor_fast(int sensor, int index, int *state); 437 int rtas_get_power_level(int powerdomain, int *level); 438 int rtas_set_power_level(int powerdomain, int level, int *setlevel); 439 bool rtas_indicator_present(int token, int *maxindex); 440 int rtas_set_indicator(int indicator, int index, int new_value); 441 int rtas_set_indicator_fast(int indicator, int index, int new_value); 442 void rtas_progress(char *s, unsigned short hex); 443 int rtas_ibm_suspend_me(int *fw_status); 444 int rtas_error_rc(int rtas_rc); 445 446 struct rtc_time; 447 time64_t rtas_get_boot_time(void); 448 void rtas_get_rtc_time(struct rtc_time *rtc_time); 449 int rtas_set_rtc_time(struct rtc_time *rtc_time); 450 451 unsigned int rtas_busy_delay_time(int status); 452 bool rtas_busy_delay(int status); 453 454 int early_init_dt_scan_rtas(unsigned long node, const char *uname, int depth, void *data); 455 456 void pSeries_log_error(char *buf, unsigned int err_type, int fatal); 457 458 #ifdef CONFIG_PPC_PSERIES 459 extern time64_t last_rtas_event; 460 int clobbering_unread_rtas_event(void); 461 int rtas_syscall_dispatch_ibm_suspend_me(u64 handle); 462 #else clobbering_unread_rtas_event(void)463 static inline int clobbering_unread_rtas_event(void) { return 0; } rtas_syscall_dispatch_ibm_suspend_me(u64 handle)464 static inline int rtas_syscall_dispatch_ibm_suspend_me(u64 handle) 465 { 466 return -EINVAL; 467 } 468 #endif 469 470 #ifdef CONFIG_PPC_RTAS_DAEMON 471 void rtas_cancel_event_scan(void); 472 #else rtas_cancel_event_scan(void)473 static inline void rtas_cancel_event_scan(void) { } 474 #endif 475 476 /* Error types logged. */ 477 #define ERR_FLAG_ALREADY_LOGGED 0x0 478 #define ERR_FLAG_BOOT 0x1 /* log was pulled from NVRAM on boot */ 479 #define ERR_TYPE_RTAS_LOG 0x2 /* from rtas event-scan */ 480 #define ERR_TYPE_KERNEL_PANIC 0x4 /* from die()/panic() */ 481 #define ERR_TYPE_KERNEL_PANIC_GZ 0x8 /* ditto, compressed */ 482 483 /* All the types and not flags */ 484 #define ERR_TYPE_MASK \ 485 (ERR_TYPE_RTAS_LOG | ERR_TYPE_KERNEL_PANIC | ERR_TYPE_KERNEL_PANIC_GZ) 486 487 #define RTAS_DEBUG KERN_DEBUG "RTAS: " 488 489 #define RTAS_ERROR_LOG_MAX 2048 490 491 /* 492 * Return the firmware-specified size of the error log buffer 493 * for all rtas calls that require an error buffer argument. 494 * This includes 'check-exception' and 'rtas-last-error'. 495 */ 496 int rtas_get_error_log_max(void); 497 498 /* Event Scan Parameters */ 499 #define EVENT_SCAN_ALL_EVENTS 0xf0000000 500 #define SURVEILLANCE_TOKEN 9000 501 #define LOG_NUMBER 64 /* must be a power of two */ 502 #define LOG_NUMBER_MASK (LOG_NUMBER-1) 503 504 /* Some RTAS ops require a data buffer and that buffer must be < 4G. 505 * Rather than having a memory allocator, just use this buffer 506 * (get the lock first), make the RTAS call. Copy the data instead 507 * of holding the buffer for long. 508 */ 509 510 #define RTAS_DATA_BUF_SIZE 4096 511 extern spinlock_t rtas_data_buf_lock; 512 extern char rtas_data_buf[RTAS_DATA_BUF_SIZE]; 513 514 /* RMO buffer reserved for user-space RTAS use */ 515 extern unsigned long rtas_rmo_buf; 516 517 extern struct mutex rtas_ibm_get_vpd_lock; 518 519 #define GLOBAL_INTERRUPT_QUEUE 9005 520 521 /** 522 * rtas_config_addr - Format a busno, devfn and reg for RTAS. 523 * @busno: The bus number. 524 * @devfn: The device and function number as encoded by PCI_DEVFN(). 525 * @reg: The register number. 526 * 527 * This function encodes the given busno, devfn and register number as 528 * required for RTAS calls that take a "config_addr" parameter. 529 * See PAPR requirement 7.3.4-1 for more info. 530 */ rtas_config_addr(int busno,int devfn,int reg)531 static inline u32 rtas_config_addr(int busno, int devfn, int reg) 532 { 533 return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) | 534 (devfn << 8) | (reg & 0xff); 535 } 536 537 void rtas_give_timebase(void); 538 void rtas_take_timebase(void); 539 540 #ifdef CONFIG_PPC_RTAS page_is_rtas_user_buf(unsigned long pfn)541 static inline int page_is_rtas_user_buf(unsigned long pfn) 542 { 543 unsigned long paddr = (pfn << PAGE_SHIFT); 544 if (paddr >= rtas_rmo_buf && paddr < (rtas_rmo_buf + RTAS_USER_REGION_SIZE)) 545 return 1; 546 return 0; 547 } 548 549 /* Not the best place to put pSeries_coalesce_init, will be fixed when we 550 * move some of the rtas suspend-me stuff to pseries */ 551 void pSeries_coalesce_init(void); 552 void rtas_initialize(void); 553 #else page_is_rtas_user_buf(unsigned long pfn)554 static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;} pSeries_coalesce_init(void)555 static inline void pSeries_coalesce_init(void) { } rtas_initialize(void)556 static inline void rtas_initialize(void) { } 557 #endif 558 559 #ifdef CONFIG_HV_PERF_CTRS 560 void read_24x7_sys_info(void); 561 #else read_24x7_sys_info(void)562 static inline void read_24x7_sys_info(void) { } 563 #endif 564 565 #endif /* __KERNEL__ */ 566 #endif /* _POWERPC_RTAS_H */ 567