1 /* 2 * PowerNV OPAL definitions. 3 * 4 * Copyright 2011 IBM Corp. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12 #ifndef _ASM_POWERPC_OPAL_H 13 #define _ASM_POWERPC_OPAL_H 14 15 #include <asm/opal-api.h> 16 17 #ifndef __ASSEMBLY__ 18 19 #include <linux/notifier.h> 20 21 /* We calculate number of sg entries based on PAGE_SIZE */ 22 #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry)) 23 24 /* /sys/firmware/opal */ 25 extern struct kobject *opal_kobj; 26 27 /* /ibm,opal */ 28 extern struct device_node *opal_node; 29 30 /* API functions */ 31 int64_t opal_invalid_call(void); 32 int64_t opal_console_write(int64_t term_number, __be64 *length, 33 const uint8_t *buffer); 34 int64_t opal_console_read(int64_t term_number, __be64 *length, 35 uint8_t *buffer); 36 int64_t opal_console_write_buffer_space(int64_t term_number, 37 __be64 *length); 38 int64_t opal_rtc_read(__be32 *year_month_day, 39 __be64 *hour_minute_second_millisecond); 40 int64_t opal_rtc_write(uint32_t year_month_day, 41 uint64_t hour_minute_second_millisecond); 42 int64_t opal_tpo_read(uint64_t token, __be32 *year_mon_day, __be32 *hour_min); 43 int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day, 44 uint32_t hour_min); 45 int64_t opal_cec_power_down(uint64_t request); 46 int64_t opal_cec_reboot(void); 47 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 48 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset); 49 int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask); 50 int64_t opal_poll_events(__be64 *outstanding_event_mask); 51 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr, 52 uint64_t tce_mem_size); 53 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr, 54 uint64_t tce_mem_size); 55 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func, 56 uint64_t offset, uint8_t *data); 57 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func, 58 uint64_t offset, __be16 *data); 59 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func, 60 uint64_t offset, __be32 *data); 61 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func, 62 uint64_t offset, uint8_t data); 63 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func, 64 uint64_t offset, uint16_t data); 65 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func, 66 uint64_t offset, uint32_t data); 67 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority); 68 int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority); 69 int64_t opal_register_exception_handler(uint64_t opal_exception, 70 uint64_t handler_address, 71 uint64_t glue_cache_line); 72 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number, 73 uint8_t *freeze_state, 74 __be16 *pci_error_type, 75 __be64 *phb_status); 76 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number, 77 uint64_t eeh_action_token); 78 int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number, 79 uint64_t eeh_action_token); 80 int64_t opal_pci_err_inject(uint64_t phb_id, uint32_t pe_no, uint32_t type, 81 uint32_t func, uint64_t addr, uint64_t mask); 82 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state); 83 84 85 86 int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type, 87 uint16_t window_num, uint16_t enable); 88 int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type, 89 uint16_t window_num, 90 uint64_t starting_real_address, 91 uint64_t starting_pci_address, 92 uint64_t size); 93 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number, 94 uint16_t window_type, uint16_t window_num, 95 uint16_t segment_num); 96 int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr, 97 uint64_t ivt_addr, uint64_t ivt_len, 98 uint64_t reject_array_addr, 99 uint64_t peltv_addr); 100 int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func, 101 uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare, 102 uint8_t pe_action); 103 int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe, 104 uint8_t state); 105 int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number); 106 int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number, 107 uint32_t state); 108 int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number, 109 uint8_t *p_bit, uint8_t *q_bit); 110 int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number, 111 uint8_t p_bit, uint8_t q_bit); 112 int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq); 113 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number, 114 uint32_t xive_num); 115 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num, 116 __be32 *interrupt_source_number); 117 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num, 118 uint8_t msi_range, __be32 *msi_address, 119 __be32 *message_data); 120 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number, 121 uint32_t xive_num, uint8_t msi_range, 122 __be64 *msi_address, __be32 *message_data); 123 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address); 124 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status); 125 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines); 126 int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id, 127 uint16_t tce_levels, uint64_t tce_table_addr, 128 uint64_t tce_table_size, uint64_t tce_page_size); 129 int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number, 130 uint16_t dma_window_number, uint64_t pci_start_addr, 131 uint64_t pci_mem_size); 132 int64_t opal_pci_reset(uint64_t phb_id, uint8_t reset_scope, uint8_t assert_state); 133 134 int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer, 135 uint64_t diag_buffer_len); 136 int64_t opal_pci_get_phb_diag_data(uint64_t phb_id, void *diag_buffer, 137 uint64_t diag_buffer_len); 138 int64_t opal_pci_get_phb_diag_data2(uint64_t phb_id, void *diag_buffer, 139 uint64_t diag_buffer_len); 140 int64_t opal_pci_fence_phb(uint64_t phb_id); 141 int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data); 142 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action); 143 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action); 144 int64_t opal_get_epow_status(__be64 *status); 145 int64_t opal_set_system_attention_led(uint8_t led_action); 146 int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe, 147 __be16 *pci_error_type, __be16 *severity); 148 int64_t opal_pci_poll(uint64_t phb_id); 149 int64_t opal_return_cpu(void); 150 int64_t opal_check_token(uint64_t token); 151 int64_t opal_reinit_cpus(uint64_t flags); 152 153 int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val); 154 int64_t opal_xscom_write(uint32_t gcid, uint64_t pcb_addr, uint64_t val); 155 156 int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, 157 uint32_t addr, uint32_t data, uint32_t sz); 158 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, 159 uint32_t addr, __be32 *data, uint32_t sz); 160 161 int64_t opal_read_elog(uint64_t buffer, uint64_t size, uint64_t log_id); 162 int64_t opal_get_elog_size(__be64 *log_id, __be64 *size, __be64 *elog_type); 163 int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset); 164 int64_t opal_send_ack_elog(uint64_t log_id); 165 void opal_resend_pending_logs(void); 166 167 int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); 168 int64_t opal_manage_flash(uint8_t op); 169 int64_t opal_update_flash(uint64_t blk_list); 170 int64_t opal_dump_init(uint8_t dump_type); 171 int64_t opal_dump_info(__be32 *dump_id, __be32 *dump_size); 172 int64_t opal_dump_info2(__be32 *dump_id, __be32 *dump_size, __be32 *dump_type); 173 int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer); 174 int64_t opal_dump_ack(uint32_t dump_id); 175 int64_t opal_dump_resend_notification(void); 176 177 int64_t opal_get_msg(uint64_t buffer, uint64_t size); 178 int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token); 179 int64_t opal_sync_host_reboot(void); 180 int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer, 181 uint64_t length); 182 int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, 183 uint64_t length); 184 int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data); 185 int64_t opal_handle_hmi(void); 186 int64_t opal_register_dump_region(uint32_t id, uint64_t start, uint64_t end); 187 int64_t opal_unregister_dump_region(uint32_t id); 188 int64_t opal_slw_set_reg(uint64_t cpu_pir, uint64_t sprn, uint64_t val); 189 int64_t opal_pci_set_phb_cxl_mode(uint64_t phb_id, uint64_t mode, uint64_t pe_number); 190 int64_t opal_ipmi_send(uint64_t interface, struct opal_ipmi_msg *msg, 191 uint64_t msg_len); 192 int64_t opal_ipmi_recv(uint64_t interface, struct opal_ipmi_msg *msg, 193 uint64_t *msg_len); 194 int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id, 195 struct opal_i2c_request *oreq); 196 197 int64_t opal_flash_read(uint64_t id, uint64_t offset, uint64_t buf, 198 uint64_t size, uint64_t token); 199 int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf, 200 uint64_t size, uint64_t token); 201 int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size, 202 uint64_t token); 203 204 /* Internal functions */ 205 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, 206 int depth, void *data); 207 extern int early_init_dt_scan_recoverable_ranges(unsigned long node, 208 const char *uname, int depth, void *data); 209 210 extern int opal_get_chars(uint32_t vtermno, char *buf, int count); 211 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); 212 213 extern void hvc_opal_init_early(void); 214 215 extern int opal_notifier_register(struct notifier_block *nb); 216 extern int opal_notifier_unregister(struct notifier_block *nb); 217 218 extern int opal_message_notifier_register(enum opal_msg_type msg_type, 219 struct notifier_block *nb); 220 extern int opal_message_notifier_unregister(enum opal_msg_type msg_type, 221 struct notifier_block *nb); 222 extern void opal_notifier_enable(void); 223 extern void opal_notifier_disable(void); 224 extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val); 225 226 extern int __opal_async_get_token(void); 227 extern int opal_async_get_token_interruptible(void); 228 extern int __opal_async_release_token(int token); 229 extern int opal_async_release_token(int token); 230 extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg); 231 extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data); 232 233 struct rtc_time; 234 extern unsigned long opal_get_boot_time(void); 235 extern void opal_nvram_init(void); 236 extern void opal_flash_update_init(void); 237 extern void opal_flash_term_callback(void); 238 extern int opal_elog_init(void); 239 extern void opal_platform_dump_init(void); 240 extern void opal_sys_param_init(void); 241 extern void opal_msglog_init(void); 242 243 extern int opal_machine_check(struct pt_regs *regs); 244 extern bool opal_mce_check_early_recovery(struct pt_regs *regs); 245 extern int opal_hmi_exception_early(struct pt_regs *regs); 246 extern int opal_handle_hmi_exception(struct pt_regs *regs); 247 248 extern void opal_shutdown(void); 249 extern int opal_resync_timebase(void); 250 251 extern void opal_lpc_init(void); 252 253 struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, 254 unsigned long vmalloc_size); 255 void opal_free_sg_list(struct opal_sg_list *sg); 256 257 extern int opal_error_code(int rc); 258 259 #endif /* __ASSEMBLY__ */ 260 261 #endif /* _ASM_POWERPC_OPAL_H */ 262