1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * PowerNV OPAL definitions. 4 * 5 * Copyright 2011 IBM Corp. 6 */ 7 8 #ifndef _ASM_POWERPC_OPAL_H 9 #define _ASM_POWERPC_OPAL_H 10 11 #include <asm/opal-api.h> 12 13 #ifndef __ASSEMBLY__ 14 15 #include <linux/notifier.h> 16 17 /* We calculate number of sg entries based on PAGE_SIZE */ 18 #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry)) 19 20 /* Default time to sleep or delay between OPAL_BUSY/OPAL_BUSY_EVENT loops */ 21 #define OPAL_BUSY_DELAY_MS 10 22 23 /* /sys/firmware/opal */ 24 extern struct kobject *opal_kobj; 25 26 /* /ibm,opal */ 27 extern struct device_node *opal_node; 28 29 /* API functions */ 30 int64_t opal_invalid_call(void); 31 int64_t opal_npu_map_lpar(uint64_t phb_id, uint64_t bdf, uint64_t lparid, 32 uint64_t lpcr); 33 int64_t opal_npu_spa_setup(uint64_t phb_id, uint32_t bdfn, 34 uint64_t addr, uint64_t PE_mask); 35 int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uint32_t bdfn, 36 uint64_t PE_handle); 37 int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap, 38 uint64_t rate_phys, uint32_t size); 39 40 int64_t opal_console_write(int64_t term_number, __be64 *length, 41 const uint8_t *buffer); 42 int64_t opal_console_read(int64_t term_number, __be64 *length, 43 uint8_t *buffer); 44 int64_t opal_console_write_buffer_space(int64_t term_number, 45 __be64 *length); 46 int64_t opal_console_flush(int64_t term_number); 47 int64_t opal_rtc_read(__be32 *year_month_day, 48 __be64 *hour_minute_second_millisecond); 49 int64_t opal_rtc_write(uint32_t year_month_day, 50 uint64_t hour_minute_second_millisecond); 51 int64_t opal_tpo_read(uint64_t token, __be32 *year_mon_day, __be32 *hour_min); 52 int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day, 53 uint32_t hour_min); 54 int64_t opal_cec_power_down(uint64_t request); 55 int64_t opal_cec_reboot(void); 56 int64_t opal_cec_reboot2(uint32_t reboot_type, const char *diag); 57 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 58 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 59 int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask); 60 int64_t opal_poll_events(__be64 *outstanding_event_mask); 61 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr, 62 uint64_t tce_mem_size); 63 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr, 64 uint64_t tce_mem_size); 65 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func, 66 uint64_t offset, uint8_t *data); 67 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func, 68 uint64_t offset, __be16 *data); 69 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func, 70 uint64_t offset, __be32 *data); 71 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func, 72 uint64_t offset, uint8_t data); 73 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func, 74 uint64_t offset, uint16_t data); 75 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func, 76 uint64_t offset, uint32_t data); 77 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority); 78 int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority); 79 int64_t opal_register_exception_handler(uint64_t opal_exception, 80 uint64_t handler_address, 81 uint64_t glue_cache_line); 82 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number, 83 uint8_t *freeze_state, 84 __be16 *pci_error_type, 85 __be64 *phb_status); 86 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number, 87 uint64_t eeh_action_token); 88 int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number, 89 uint64_t eeh_action_token); 90 int64_t opal_pci_err_inject(uint64_t phb_id, uint32_t pe_no, uint32_t type, 91 uint32_t func, uint64_t addr, uint64_t mask); 92 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state); 93 94 95 96 int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type, 97 uint16_t window_num, uint16_t enable); 98 int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type, 99 uint16_t window_num, 100 uint64_t starting_real_address, 101 uint64_t starting_pci_address, 102 uint64_t size); 103 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number, 104 uint16_t window_type, uint16_t window_num, 105 uint16_t segment_num); 106 int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr, 107 uint64_t ivt_addr, uint64_t ivt_len, 108 uint64_t reject_array_addr, 109 uint64_t peltv_addr); 110 int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func, 111 uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare, 112 uint8_t pe_action); 113 int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe, 114 uint8_t state); 115 int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number); 116 int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number, 117 uint32_t state); 118 int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number, 119 uint8_t *p_bit, uint8_t *q_bit); 120 int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number, 121 uint8_t p_bit, uint8_t q_bit); 122 int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq); 123 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number, 124 uint32_t xive_num); 125 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num, 126 __be32 *interrupt_source_number); 127 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num, 128 uint8_t msi_range, __be32 *msi_address, 129 __be32 *message_data); 130 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number, 131 uint32_t xive_num, uint8_t msi_range, 132 __be64 *msi_address, __be32 *message_data); 133 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address); 134 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status); 135 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines); 136 int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id, 137 uint16_t tce_levels, uint64_t tce_table_addr, 138 uint64_t tce_table_size, uint64_t tce_page_size); 139 int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number, 140 uint16_t dma_window_number, uint64_t pci_start_addr, 141 uint64_t pci_mem_size); 142 int64_t opal_pci_reset(uint64_t id, uint8_t reset_scope, uint8_t assert_state); 143 144 int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer, 145 uint64_t diag_buffer_len); 146 int64_t opal_pci_get_phb_diag_data(uint64_t phb_id, void *diag_buffer, 147 uint64_t diag_buffer_len); 148 int64_t opal_pci_get_phb_diag_data2(uint64_t phb_id, void *diag_buffer, 149 uint64_t diag_buffer_len); 150 int64_t opal_pci_fence_phb(uint64_t phb_id); 151 int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data); 152 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action); 153 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action); 154 int64_t opal_get_epow_status(__be16 *epow_status, __be16 *num_epow_classes); 155 int64_t opal_get_dpo_status(__be64 *dpo_timeout); 156 int64_t opal_set_system_attention_led(uint8_t led_action); 157 int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe, 158 __be16 *pci_error_type, __be16 *severity); 159 int64_t opal_pci_poll(uint64_t id); 160 int64_t opal_return_cpu(void); 161 int64_t opal_check_token(uint64_t token); 162 int64_t opal_reinit_cpus(uint64_t flags); 163 164 int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val); 165 int64_t opal_xscom_write(uint32_t gcid, uint64_t pcb_addr, uint64_t val); 166 167 int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, 168 uint32_t addr, uint32_t data, uint32_t sz); 169 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, 170 uint32_t addr, __be32 *data, uint32_t sz); 171 172 int64_t opal_read_elog(uint64_t buffer, uint64_t size, uint64_t log_id); 173 int64_t opal_get_elog_size(__be64 *log_id, __be64 *size, __be64 *elog_type); 174 int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset); 175 int64_t opal_send_ack_elog(uint64_t log_id); 176 void opal_resend_pending_logs(void); 177 178 int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); 179 int64_t opal_manage_flash(uint8_t op); 180 int64_t opal_update_flash(uint64_t blk_list); 181 int64_t opal_dump_init(uint8_t dump_type); 182 int64_t opal_dump_info(__be32 *dump_id, __be32 *dump_size); 183 int64_t opal_dump_info2(__be32 *dump_id, __be32 *dump_size, __be32 *dump_type); 184 int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer); 185 int64_t opal_dump_ack(uint32_t dump_id); 186 int64_t opal_dump_resend_notification(void); 187 188 int64_t opal_get_msg(uint64_t buffer, uint64_t size); 189 int64_t opal_write_oppanel_async(uint64_t token, oppanel_line_t *lines, 190 uint64_t num_lines); 191 int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token); 192 int64_t opal_sync_host_reboot(void); 193 int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer, 194 uint64_t length); 195 int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, 196 uint64_t length); 197 int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data); 198 int64_t opal_sensor_read_u64(u32 sensor_hndl, int token, __be64 *sensor_data); 199 int64_t opal_handle_hmi(void); 200 int64_t opal_handle_hmi2(__be64 *out_flags); 201 int64_t opal_register_dump_region(uint32_t id, uint64_t start, uint64_t end); 202 int64_t opal_unregister_dump_region(uint32_t id); 203 int64_t opal_slw_set_reg(uint64_t cpu_pir, uint64_t sprn, uint64_t val); 204 int64_t opal_config_cpu_idle_state(uint64_t state, uint64_t flag); 205 int64_t opal_pci_set_phb_cxl_mode(uint64_t phb_id, uint64_t mode, uint64_t pe_number); 206 int64_t opal_pci_get_pbcq_tunnel_bar(uint64_t phb_id, uint64_t *addr); 207 int64_t opal_pci_set_pbcq_tunnel_bar(uint64_t phb_id, uint64_t addr); 208 int64_t opal_ipmi_send(uint64_t interface, struct opal_ipmi_msg *msg, 209 uint64_t msg_len); 210 int64_t opal_ipmi_recv(uint64_t interface, struct opal_ipmi_msg *msg, 211 uint64_t *msg_len); 212 int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id, 213 struct opal_i2c_request *oreq); 214 int64_t opal_prd_msg(struct opal_prd_msg *msg); 215 int64_t opal_leds_get_ind(char *loc_code, __be64 *led_mask, 216 __be64 *led_value, __be64 *max_led_type); 217 int64_t opal_leds_set_ind(uint64_t token, char *loc_code, const u64 led_mask, 218 const u64 led_value, __be64 *max_led_type); 219 220 int64_t opal_flash_read(uint64_t id, uint64_t offset, uint64_t buf, 221 uint64_t size, uint64_t token); 222 int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf, 223 uint64_t size, uint64_t token); 224 int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size, 225 uint64_t token); 226 int64_t opal_get_device_tree(uint32_t phandle, uint64_t buf, uint64_t len); 227 int64_t opal_pci_get_presence_state(uint64_t id, uint64_t data); 228 int64_t opal_pci_get_power_state(uint64_t id, uint64_t data); 229 int64_t opal_pci_set_power_state(uint64_t async_token, uint64_t id, 230 uint64_t data); 231 int64_t opal_pci_poll2(uint64_t id, uint64_t data); 232 233 int64_t opal_int_get_xirr(uint32_t *out_xirr, bool just_poll); 234 int64_t opal_int_set_cppr(uint8_t cppr); 235 int64_t opal_int_eoi(uint32_t xirr); 236 int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr); 237 int64_t opal_pci_tce_kill(uint64_t phb_id, uint32_t kill_type, 238 uint32_t pe_num, uint32_t tce_size, 239 uint64_t dma_addr, uint32_t npages); 240 int64_t opal_nmmu_set_ptcr(uint64_t chip_id, uint64_t ptcr); 241 int64_t opal_xive_reset(uint64_t version); 242 int64_t opal_xive_get_irq_info(uint32_t girq, 243 __be64 *out_flags, 244 __be64 *out_eoi_page, 245 __be64 *out_trig_page, 246 __be32 *out_esb_shift, 247 __be32 *out_src_chip); 248 int64_t opal_xive_get_irq_config(uint32_t girq, __be64 *out_vp, 249 uint8_t *out_prio, __be32 *out_lirq); 250 int64_t opal_xive_set_irq_config(uint32_t girq, uint64_t vp, uint8_t prio, 251 uint32_t lirq); 252 int64_t opal_xive_get_queue_info(uint64_t vp, uint32_t prio, 253 __be64 *out_qpage, 254 __be64 *out_qsize, 255 __be64 *out_qeoi_page, 256 __be32 *out_escalate_irq, 257 __be64 *out_qflags); 258 int64_t opal_xive_set_queue_info(uint64_t vp, uint32_t prio, 259 uint64_t qpage, 260 uint64_t qsize, 261 uint64_t qflags); 262 int64_t opal_xive_donate_page(uint32_t chip_id, uint64_t addr); 263 int64_t opal_xive_alloc_vp_block(uint32_t alloc_order); 264 int64_t opal_xive_free_vp_block(uint64_t vp); 265 int64_t opal_xive_get_vp_info(uint64_t vp, 266 __be64 *out_flags, 267 __be64 *out_cam_value, 268 __be64 *out_report_cl_pair, 269 __be32 *out_chip_id); 270 int64_t opal_xive_set_vp_info(uint64_t vp, 271 uint64_t flags, 272 uint64_t report_cl_pair); 273 int64_t opal_xive_allocate_irq_raw(uint32_t chip_id); 274 int64_t opal_xive_free_irq(uint32_t girq); 275 int64_t opal_xive_sync(uint32_t type, uint32_t id); 276 int64_t opal_xive_dump(uint32_t type, uint32_t id); 277 int64_t opal_xive_get_queue_state(uint64_t vp, uint32_t prio, 278 __be32 *out_qtoggle, 279 __be32 *out_qindex); 280 int64_t opal_xive_set_queue_state(uint64_t vp, uint32_t prio, 281 uint32_t qtoggle, 282 uint32_t qindex); 283 int64_t opal_xive_get_vp_state(uint64_t vp, __be64 *out_w01); 284 285 int64_t opal_imc_counters_init(uint32_t type, uint64_t address, 286 uint64_t cpu_pir); 287 int64_t opal_imc_counters_start(uint32_t type, uint64_t cpu_pir); 288 int64_t opal_imc_counters_stop(uint32_t type, uint64_t cpu_pir); 289 290 int opal_get_powercap(u32 handle, int token, u32 *pcap); 291 int opal_set_powercap(u32 handle, int token, u32 pcap); 292 int opal_get_power_shift_ratio(u32 handle, int token, u32 *psr); 293 int opal_set_power_shift_ratio(u32 handle, int token, u32 psr); 294 int opal_sensor_group_clear(u32 group_hndl, int token); 295 int opal_sensor_group_enable(u32 group_hndl, int token, bool enable); 296 int opal_nx_coproc_init(uint32_t chip_id, uint32_t ct); 297 298 int opal_secvar_get(const char *key, uint64_t key_len, u8 *data, 299 uint64_t *data_size); 300 int opal_secvar_get_next(const char *key, uint64_t *key_len, 301 uint64_t key_buf_size); 302 int opal_secvar_enqueue_update(const char *key, uint64_t key_len, u8 *data, 303 uint64_t data_size); 304 305 s64 opal_mpipl_update(enum opal_mpipl_ops op, u64 src, u64 dest, u64 size); 306 s64 opal_mpipl_register_tag(enum opal_mpipl_tags tag, u64 addr); 307 s64 opal_mpipl_query_tag(enum opal_mpipl_tags tag, __be64 *addr); 308 309 s64 opal_signal_system_reset(s32 cpu); 310 s64 opal_quiesce(u64 shutdown_type, s32 cpu); 311 312 /* Internal functions */ 313 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, 314 int depth, void *data); 315 extern int early_init_dt_scan_recoverable_ranges(unsigned long node, 316 const char *uname, int depth, void *data); 317 extern void opal_configure_cores(void); 318 319 extern int opal_get_chars(uint32_t vtermno, char *buf, int count); 320 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); 321 extern int opal_put_chars_atomic(uint32_t vtermno, const char *buf, int total_len); 322 extern int opal_flush_chars(uint32_t vtermno, bool wait); 323 extern int opal_flush_console(uint32_t vtermno); 324 325 extern void hvc_opal_init_early(void); 326 327 extern int opal_notifier_register(struct notifier_block *nb); 328 extern int opal_notifier_unregister(struct notifier_block *nb); 329 330 extern int opal_message_notifier_register(enum opal_msg_type msg_type, 331 struct notifier_block *nb); 332 extern int opal_message_notifier_unregister(enum opal_msg_type msg_type, 333 struct notifier_block *nb); 334 extern void opal_notifier_enable(void); 335 extern void opal_notifier_disable(void); 336 extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val); 337 338 extern int opal_async_get_token_interruptible(void); 339 extern int opal_async_release_token(int token); 340 extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg); 341 extern int opal_async_wait_response_interruptible(uint64_t token, 342 struct opal_msg *msg); 343 extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data); 344 extern int opal_get_sensor_data_u64(u32 sensor_hndl, u64 *sensor_data); 345 extern int sensor_group_enable(u32 grp_hndl, bool enable); 346 347 struct rtc_time; 348 extern time64_t opal_get_boot_time(void); 349 extern void opal_nvram_init(void); 350 extern void opal_flash_update_init(void); 351 extern void opal_flash_update_print_message(void); 352 extern int opal_elog_init(void); 353 extern void opal_platform_dump_init(void); 354 extern void opal_sys_param_init(void); 355 extern void opal_msglog_init(void); 356 extern void opal_msglog_sysfs_init(void); 357 extern int opal_async_comp_init(void); 358 extern int opal_sensor_init(void); 359 extern int opal_hmi_handler_init(void); 360 extern int opal_event_init(void); 361 int opal_power_control_init(void); 362 363 extern int opal_machine_check(struct pt_regs *regs); 364 extern bool opal_mce_check_early_recovery(struct pt_regs *regs); 365 extern int opal_hmi_exception_early(struct pt_regs *regs); 366 extern int opal_hmi_exception_early2(struct pt_regs *regs); 367 extern int opal_handle_hmi_exception(struct pt_regs *regs); 368 369 extern void opal_shutdown(void); 370 extern int opal_resync_timebase(void); 371 372 extern void opal_lpc_init(void); 373 374 extern void opal_kmsg_init(void); 375 376 extern int opal_event_request(unsigned int opal_event_nr); 377 378 struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, 379 unsigned long vmalloc_size); 380 void opal_free_sg_list(struct opal_sg_list *sg); 381 382 extern int opal_error_code(int rc); 383 384 ssize_t opal_msglog_copy(char *to, loff_t pos, size_t count); 385 386 static inline int opal_get_async_rc(struct opal_msg msg) 387 { 388 if (msg.msg_type != OPAL_MSG_ASYNC_COMP) 389 return OPAL_PARAMETER; 390 else 391 return be64_to_cpu(msg.params[1]); 392 } 393 394 void opal_wake_poller(void); 395 396 void opal_powercap_init(void); 397 void opal_psr_init(void); 398 void opal_sensor_groups_init(void); 399 400 #endif /* __ASSEMBLY__ */ 401 402 #endif /* _ASM_POWERPC_OPAL_H */ 403