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TOMOYO Linux Cross Reference
Linux/arch/powerpc/include/asm/opal.h

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  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_npu_destroy_context(uint64_t phb_id, uint64_t pid, uint64_t bdf);
 33 int64_t opal_npu_init_context(uint64_t phb_id, int pasid, uint64_t msr,
 34                         uint64_t bdf);
 35 int64_t opal_npu_map_lpar(uint64_t phb_id, uint64_t bdf, uint64_t lparid,
 36                         uint64_t lpcr);
 37 int64_t opal_console_write(int64_t term_number, __be64 *length,
 38                            const uint8_t *buffer);
 39 int64_t opal_console_read(int64_t term_number, __be64 *length,
 40                           uint8_t *buffer);
 41 int64_t opal_console_write_buffer_space(int64_t term_number,
 42                                         __be64 *length);
 43 int64_t opal_console_flush(int64_t term_number);
 44 int64_t opal_rtc_read(__be32 *year_month_day,
 45                       __be64 *hour_minute_second_millisecond);
 46 int64_t opal_rtc_write(uint32_t year_month_day,
 47                        uint64_t hour_minute_second_millisecond);
 48 int64_t opal_tpo_read(uint64_t token, __be32 *year_mon_day, __be32 *hour_min);
 49 int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day,
 50                        uint32_t hour_min);
 51 int64_t opal_cec_power_down(uint64_t request);
 52 int64_t opal_cec_reboot(void);
 53 int64_t opal_cec_reboot2(uint32_t reboot_type, char *diag);
 54 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
 55 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
 56 int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask);
 57 int64_t opal_poll_events(__be64 *outstanding_event_mask);
 58 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr,
 59                                     uint64_t tce_mem_size);
 60 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr,
 61                                     uint64_t tce_mem_size);
 62 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func,
 63                                   uint64_t offset, uint8_t *data);
 64 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func,
 65                                        uint64_t offset, __be16 *data);
 66 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func,
 67                                   uint64_t offset, __be32 *data);
 68 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func,
 69                                    uint64_t offset, uint8_t data);
 70 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func,
 71                                         uint64_t offset, uint16_t data);
 72 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func,
 73                                    uint64_t offset, uint32_t data);
 74 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority);
 75 int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority);
 76 int64_t opal_register_exception_handler(uint64_t opal_exception,
 77                                         uint64_t handler_address,
 78                                         uint64_t glue_cache_line);
 79 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number,
 80                                    uint8_t *freeze_state,
 81                                    __be16 *pci_error_type,
 82                                    __be64 *phb_status);
 83 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,
 84                                   uint64_t eeh_action_token);
 85 int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number,
 86                                 uint64_t eeh_action_token);
 87 int64_t opal_pci_err_inject(uint64_t phb_id, uint32_t pe_no, uint32_t type,
 88                             uint32_t func, uint64_t addr, uint64_t mask);
 89 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);
 90 
 91 
 92 
 93 int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type,
 94                                  uint16_t window_num, uint16_t enable);
 95 int64_t opal_pci_set_phb_mem_window(uint64_t phb_id, uint16_t window_type,
 96                                     uint16_t window_num,
 97                                     uint64_t starting_real_address,
 98                                     uint64_t starting_pci_address,
 99                                     uint64_t size);
100 int64_t opal_pci_map_pe_mmio_window(uint64_t phb_id, uint16_t pe_number,
101                                     uint16_t window_type, uint16_t window_num,
102                                     uint16_t segment_num);
103 int64_t opal_pci_set_phb_table_memory(uint64_t phb_id, uint64_t rtt_addr,
104                                       uint64_t ivt_addr, uint64_t ivt_len,
105                                       uint64_t reject_array_addr,
106                                       uint64_t peltv_addr);
107 int64_t opal_pci_set_pe(uint64_t phb_id, uint64_t pe_number, uint64_t bus_dev_func,
108                         uint8_t bus_compare, uint8_t dev_compare, uint8_t func_compare,
109                         uint8_t pe_action);
110 int64_t opal_pci_set_peltv(uint64_t phb_id, uint32_t parent_pe, uint32_t child_pe,
111                            uint8_t state);
112 int64_t opal_pci_set_mve(uint64_t phb_id, uint32_t mve_number, uint32_t pe_number);
113 int64_t opal_pci_set_mve_enable(uint64_t phb_id, uint32_t mve_number,
114                                 uint32_t state);
115 int64_t opal_pci_get_xive_reissue(uint64_t phb_id, uint32_t xive_number,
116                                   uint8_t *p_bit, uint8_t *q_bit);
117 int64_t opal_pci_set_xive_reissue(uint64_t phb_id, uint32_t xive_number,
118                                   uint8_t p_bit, uint8_t q_bit);
119 int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq);
120 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number,
121                              uint32_t xive_num);
122 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num,
123                              __be32 *interrupt_source_number);
124 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num,
125                         uint8_t msi_range, __be32 *msi_address,
126                         __be32 *message_data);
127 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number,
128                         uint32_t xive_num, uint8_t msi_range,
129                         __be64 *msi_address, __be32 *message_data);
130 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address);
131 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status);
132 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines);
133 int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t window_id,
134                                    uint16_t tce_levels, uint64_t tce_table_addr,
135                                    uint64_t tce_table_size, uint64_t tce_page_size);
136 int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number,
137                                         uint16_t dma_window_number, uint64_t pci_start_addr,
138                                         uint64_t pci_mem_size);
139 int64_t opal_pci_reset(uint64_t id, uint8_t reset_scope, uint8_t assert_state);
140 
141 int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer,
142                                    uint64_t diag_buffer_len);
143 int64_t opal_pci_get_phb_diag_data(uint64_t phb_id, void *diag_buffer,
144                                    uint64_t diag_buffer_len);
145 int64_t opal_pci_get_phb_diag_data2(uint64_t phb_id, void *diag_buffer,
146                                     uint64_t diag_buffer_len);
147 int64_t opal_pci_fence_phb(uint64_t phb_id);
148 int64_t opal_pci_reinit(uint64_t phb_id, uint64_t reinit_scope, uint64_t data);
149 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action);
150 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action);
151 int64_t opal_get_epow_status(__be16 *epow_status, __be16 *num_epow_classes);
152 int64_t opal_get_dpo_status(__be64 *dpo_timeout);
153 int64_t opal_set_system_attention_led(uint8_t led_action);
154 int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe,
155                             __be16 *pci_error_type, __be16 *severity);
156 int64_t opal_pci_poll(uint64_t id);
157 int64_t opal_return_cpu(void);
158 int64_t opal_check_token(uint64_t token);
159 int64_t opal_reinit_cpus(uint64_t flags);
160 
161 int64_t opal_xscom_read(uint32_t gcid, uint64_t pcb_addr, __be64 *val);
162 int64_t opal_xscom_write(uint32_t gcid, uint64_t pcb_addr, uint64_t val);
163 
164 int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type,
165                        uint32_t addr, uint32_t data, uint32_t sz);
166 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type,
167                       uint32_t addr, __be32 *data, uint32_t sz);
168 
169 int64_t opal_read_elog(uint64_t buffer, uint64_t size, uint64_t log_id);
170 int64_t opal_get_elog_size(__be64 *log_id, __be64 *size, __be64 *elog_type);
171 int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset);
172 int64_t opal_send_ack_elog(uint64_t log_id);
173 void opal_resend_pending_logs(void);
174 
175 int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result);
176 int64_t opal_manage_flash(uint8_t op);
177 int64_t opal_update_flash(uint64_t blk_list);
178 int64_t opal_dump_init(uint8_t dump_type);
179 int64_t opal_dump_info(__be32 *dump_id, __be32 *dump_size);
180 int64_t opal_dump_info2(__be32 *dump_id, __be32 *dump_size, __be32 *dump_type);
181 int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer);
182 int64_t opal_dump_ack(uint32_t dump_id);
183 int64_t opal_dump_resend_notification(void);
184 
185 int64_t opal_get_msg(uint64_t buffer, uint64_t size);
186 int64_t opal_write_oppanel_async(uint64_t token, oppanel_line_t *lines,
187                                         uint64_t num_lines);
188 int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token);
189 int64_t opal_sync_host_reboot(void);
190 int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer,
191                 uint64_t length);
192 int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer,
193                 uint64_t length);
194 int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data);
195 int64_t opal_handle_hmi(void);
196 int64_t opal_register_dump_region(uint32_t id, uint64_t start, uint64_t end);
197 int64_t opal_unregister_dump_region(uint32_t id);
198 int64_t opal_slw_set_reg(uint64_t cpu_pir, uint64_t sprn, uint64_t val);
199 int64_t opal_config_cpu_idle_state(uint64_t state, uint64_t flag);
200 int64_t opal_pci_set_phb_cxl_mode(uint64_t phb_id, uint64_t mode, uint64_t pe_number);
201 int64_t opal_ipmi_send(uint64_t interface, struct opal_ipmi_msg *msg,
202                 uint64_t msg_len);
203 int64_t opal_ipmi_recv(uint64_t interface, struct opal_ipmi_msg *msg,
204                 uint64_t *msg_len);
205 int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id,
206                          struct opal_i2c_request *oreq);
207 int64_t opal_prd_msg(struct opal_prd_msg *msg);
208 int64_t opal_leds_get_ind(char *loc_code, __be64 *led_mask,
209                           __be64 *led_value, __be64 *max_led_type);
210 int64_t opal_leds_set_ind(uint64_t token, char *loc_code, const u64 led_mask,
211                           const u64 led_value, __be64 *max_led_type);
212 
213 int64_t opal_flash_read(uint64_t id, uint64_t offset, uint64_t buf,
214                 uint64_t size, uint64_t token);
215 int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf,
216                 uint64_t size, uint64_t token);
217 int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size,
218                 uint64_t token);
219 int64_t opal_get_device_tree(uint32_t phandle, uint64_t buf, uint64_t len);
220 int64_t opal_pci_get_presence_state(uint64_t id, uint64_t data);
221 int64_t opal_pci_get_power_state(uint64_t id, uint64_t data);
222 int64_t opal_pci_set_power_state(uint64_t async_token, uint64_t id,
223                                  uint64_t data);
224 int64_t opal_pci_poll2(uint64_t id, uint64_t data);
225 
226 int64_t opal_int_get_xirr(uint32_t *out_xirr, bool just_poll);
227 int64_t opal_int_set_cppr(uint8_t cppr);
228 int64_t opal_int_eoi(uint32_t xirr);
229 int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr);
230 int64_t opal_pci_tce_kill(uint64_t phb_id, uint32_t kill_type,
231                           uint32_t pe_num, uint32_t tce_size,
232                           uint64_t dma_addr, uint32_t npages);
233 int64_t opal_nmmu_set_ptcr(uint64_t chip_id, uint64_t ptcr);
234 int64_t opal_xive_reset(uint64_t version);
235 int64_t opal_xive_get_irq_info(uint32_t girq,
236                                __be64 *out_flags,
237                                __be64 *out_eoi_page,
238                                __be64 *out_trig_page,
239                                __be32 *out_esb_shift,
240                                __be32 *out_src_chip);
241 int64_t opal_xive_get_irq_config(uint32_t girq, __be64 *out_vp,
242                                  uint8_t *out_prio, __be32 *out_lirq);
243 int64_t opal_xive_set_irq_config(uint32_t girq, uint64_t vp, uint8_t prio,
244                                  uint32_t lirq);
245 int64_t opal_xive_get_queue_info(uint64_t vp, uint32_t prio,
246                                  __be64 *out_qpage,
247                                  __be64 *out_qsize,
248                                  __be64 *out_qeoi_page,
249                                  __be32 *out_escalate_irq,
250                                  __be64 *out_qflags);
251 int64_t opal_xive_set_queue_info(uint64_t vp, uint32_t prio,
252                                  uint64_t qpage,
253                                  uint64_t qsize,
254                                  uint64_t qflags);
255 int64_t opal_xive_donate_page(uint32_t chip_id, uint64_t addr);
256 int64_t opal_xive_alloc_vp_block(uint32_t alloc_order);
257 int64_t opal_xive_free_vp_block(uint64_t vp);
258 int64_t opal_xive_get_vp_info(uint64_t vp,
259                               __be64 *out_flags,
260                               __be64 *out_cam_value,
261                               __be64 *out_report_cl_pair,
262                               __be32 *out_chip_id);
263 int64_t opal_xive_set_vp_info(uint64_t vp,
264                               uint64_t flags,
265                               uint64_t report_cl_pair);
266 int64_t opal_xive_allocate_irq(uint32_t chip_id);
267 int64_t opal_xive_free_irq(uint32_t girq);
268 int64_t opal_xive_sync(uint32_t type, uint32_t id);
269 int64_t opal_xive_dump(uint32_t type, uint32_t id);
270 
271 /* Internal functions */
272 extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
273                                    int depth, void *data);
274 extern int early_init_dt_scan_recoverable_ranges(unsigned long node,
275                                  const char *uname, int depth, void *data);
276 extern void opal_configure_cores(void);
277 
278 extern int opal_get_chars(uint32_t vtermno, char *buf, int count);
279 extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len);
280 
281 extern void hvc_opal_init_early(void);
282 
283 extern int opal_notifier_register(struct notifier_block *nb);
284 extern int opal_notifier_unregister(struct notifier_block *nb);
285 
286 extern int opal_message_notifier_register(enum opal_msg_type msg_type,
287                                                 struct notifier_block *nb);
288 extern int opal_message_notifier_unregister(enum opal_msg_type msg_type,
289                                             struct notifier_block *nb);
290 extern void opal_notifier_enable(void);
291 extern void opal_notifier_disable(void);
292 extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val);
293 
294 extern int __opal_async_get_token(void);
295 extern int opal_async_get_token_interruptible(void);
296 extern int __opal_async_release_token(int token);
297 extern int opal_async_release_token(int token);
298 extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg);
299 extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data);
300 
301 struct rtc_time;
302 extern unsigned long opal_get_boot_time(void);
303 extern void opal_nvram_init(void);
304 extern void opal_flash_update_init(void);
305 extern void opal_flash_term_callback(void);
306 extern int opal_elog_init(void);
307 extern void opal_platform_dump_init(void);
308 extern void opal_sys_param_init(void);
309 extern void opal_msglog_init(void);
310 extern void opal_msglog_sysfs_init(void);
311 extern int opal_async_comp_init(void);
312 extern int opal_sensor_init(void);
313 extern int opal_hmi_handler_init(void);
314 extern int opal_event_init(void);
315 
316 extern int opal_machine_check(struct pt_regs *regs);
317 extern bool opal_mce_check_early_recovery(struct pt_regs *regs);
318 extern int opal_hmi_exception_early(struct pt_regs *regs);
319 extern int opal_handle_hmi_exception(struct pt_regs *regs);
320 
321 extern void opal_shutdown(void);
322 extern int opal_resync_timebase(void);
323 
324 extern void opal_lpc_init(void);
325 
326 extern void opal_kmsg_init(void);
327 
328 extern int opal_event_request(unsigned int opal_event_nr);
329 
330 struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr,
331                                              unsigned long vmalloc_size);
332 void opal_free_sg_list(struct opal_sg_list *sg);
333 
334 extern int opal_error_code(int rc);
335 
336 ssize_t opal_msglog_copy(char *to, loff_t pos, size_t count);
337 
338 static inline int opal_get_async_rc(struct opal_msg msg)
339 {
340         if (msg.msg_type != OPAL_MSG_ASYNC_COMP)
341                 return OPAL_PARAMETER;
342         else
343                 return be64_to_cpu(msg.params[1]);
344 }
345 
346 void opal_wake_poller(void);
347 
348 #endif /* __ASSEMBLY__ */
349 
350 #endif /* _ASM_POWERPC_OPAL_H */
351 

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