1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 5 * 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 19 */ 20 21 #ifndef _LINUX_ACPI_H 22 #define _LINUX_ACPI_H 23 24 #include <linux/errno.h> 25 #include <linux/ioport.h> /* for struct resource */ 26 #include <linux/resource_ext.h> 27 #include <linux/device.h> 28 #include <linux/property.h> 29 #include <linux/uuid.h> 30 31 #ifndef _LINUX 32 #define _LINUX 33 #endif 34 #include <acpi/acpi.h> 35 36 #ifdef CONFIG_ACPI 37 38 #include <linux/list.h> 39 #include <linux/mod_devicetable.h> 40 #include <linux/dynamic_debug.h> 41 #include <linux/module.h> 42 #include <linux/mutex.h> 43 44 #include <acpi/acpi_bus.h> 45 #include <acpi/acpi_drivers.h> 46 #include <acpi/acpi_numa.h> 47 #include <acpi/acpi_io.h> 48 #include <asm/acpi.h> 49 50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 51 { 52 return adev ? adev->handle : NULL; 53 } 54 55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 57 acpi_fwnode_handle(adev) : NULL) 58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 59 #define ACPI_HANDLE_FWNODE(fwnode) \ 60 acpi_device_handle(to_acpi_device_node(fwnode)) 61 62 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 63 { 64 struct fwnode_handle *fwnode; 65 66 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 67 if (!fwnode) 68 return NULL; 69 70 fwnode->ops = &acpi_static_fwnode_ops; 71 72 return fwnode; 73 } 74 75 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 76 { 77 if (WARN_ON(!is_acpi_static_node(fwnode))) 78 return; 79 80 kfree(fwnode); 81 } 82 83 /** 84 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 85 * the PCI-defined class-code information 86 * 87 * @_cls : the class, subclass, prog-if triple for this device 88 * @_msk : the class mask for this device 89 * 90 * This macro is used to create a struct acpi_device_id that matches a 91 * specific PCI class. The .id and .driver_data fields will be left 92 * initialized with the default value. 93 */ 94 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 95 96 static inline bool has_acpi_companion(struct device *dev) 97 { 98 return is_acpi_device_node(dev->fwnode); 99 } 100 101 static inline void acpi_preset_companion(struct device *dev, 102 struct acpi_device *parent, u64 addr) 103 { 104 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 105 } 106 107 static inline const char *acpi_dev_name(struct acpi_device *adev) 108 { 109 return dev_name(&adev->dev); 110 } 111 112 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 113 114 enum acpi_irq_model_id { 115 ACPI_IRQ_MODEL_PIC = 0, 116 ACPI_IRQ_MODEL_IOAPIC, 117 ACPI_IRQ_MODEL_IOSAPIC, 118 ACPI_IRQ_MODEL_PLATFORM, 119 ACPI_IRQ_MODEL_GIC, 120 ACPI_IRQ_MODEL_COUNT 121 }; 122 123 extern enum acpi_irq_model_id acpi_irq_model; 124 125 enum acpi_interrupt_id { 126 ACPI_INTERRUPT_PMI = 1, 127 ACPI_INTERRUPT_INIT, 128 ACPI_INTERRUPT_CPEI, 129 ACPI_INTERRUPT_COUNT 130 }; 131 132 #define ACPI_SPACE_MEM 0 133 134 enum acpi_address_range_id { 135 ACPI_ADDRESS_RANGE_MEMORY = 1, 136 ACPI_ADDRESS_RANGE_RESERVED = 2, 137 ACPI_ADDRESS_RANGE_ACPI = 3, 138 ACPI_ADDRESS_RANGE_NVS = 4, 139 ACPI_ADDRESS_RANGE_COUNT 140 }; 141 142 143 /* Table Handlers */ 144 145 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 146 147 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, 148 const unsigned long end); 149 150 /* Debugger support */ 151 152 struct acpi_debugger_ops { 153 int (*create_thread)(acpi_osd_exec_callback function, void *context); 154 ssize_t (*write_log)(const char *msg); 155 ssize_t (*read_cmd)(char *buffer, size_t length); 156 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 157 int (*notify_command_complete)(void); 158 }; 159 160 struct acpi_debugger { 161 const struct acpi_debugger_ops *ops; 162 struct module *owner; 163 struct mutex lock; 164 }; 165 166 #ifdef CONFIG_ACPI_DEBUGGER 167 int __init acpi_debugger_init(void); 168 int acpi_register_debugger(struct module *owner, 169 const struct acpi_debugger_ops *ops); 170 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 171 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 172 ssize_t acpi_debugger_write_log(const char *msg); 173 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 174 int acpi_debugger_wait_command_ready(void); 175 int acpi_debugger_notify_command_complete(void); 176 #else 177 static inline int acpi_debugger_init(void) 178 { 179 return -ENODEV; 180 } 181 182 static inline int acpi_register_debugger(struct module *owner, 183 const struct acpi_debugger_ops *ops) 184 { 185 return -ENODEV; 186 } 187 188 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 189 { 190 } 191 192 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 193 void *context) 194 { 195 return -ENODEV; 196 } 197 198 static inline int acpi_debugger_write_log(const char *msg) 199 { 200 return -ENODEV; 201 } 202 203 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 204 { 205 return -ENODEV; 206 } 207 208 static inline int acpi_debugger_wait_command_ready(void) 209 { 210 return -ENODEV; 211 } 212 213 static inline int acpi_debugger_notify_command_complete(void) 214 { 215 return -ENODEV; 216 } 217 #endif 218 219 #define BAD_MADT_ENTRY(entry, end) ( \ 220 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 221 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 222 223 struct acpi_subtable_proc { 224 int id; 225 acpi_tbl_entry_handler handler; 226 int count; 227 }; 228 229 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 230 void __acpi_unmap_table(void __iomem *map, unsigned long size); 231 int early_acpi_boot_init(void); 232 int acpi_boot_init (void); 233 void acpi_boot_table_init (void); 234 int acpi_mps_check (void); 235 int acpi_numa_init (void); 236 237 int acpi_table_init (void); 238 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 239 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 240 int entry_id, 241 acpi_tbl_entry_handler handler, 242 unsigned int max_entries); 243 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 244 struct acpi_subtable_proc *proc, int proc_num, 245 unsigned int max_entries); 246 int acpi_table_parse_madt(enum acpi_madt_type id, 247 acpi_tbl_entry_handler handler, 248 unsigned int max_entries); 249 int acpi_parse_mcfg (struct acpi_table_header *header); 250 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 251 252 /* the following numa functions are architecture-dependent */ 253 void acpi_numa_slit_init (struct acpi_table_slit *slit); 254 255 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 256 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 257 #else 258 static inline void 259 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 260 #endif 261 262 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 263 264 #ifdef CONFIG_ARM64 265 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 266 #else 267 static inline void 268 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 269 #endif 270 271 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 272 273 #ifndef PHYS_CPUID_INVALID 274 typedef u32 phys_cpuid_t; 275 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 276 #endif 277 278 static inline bool invalid_logical_cpuid(u32 cpuid) 279 { 280 return (int)cpuid < 0; 281 } 282 283 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 284 { 285 return phys_id == PHYS_CPUID_INVALID; 286 } 287 288 /* Validate the processor object's proc_id */ 289 bool acpi_duplicate_processor_id(int proc_id); 290 291 #ifdef CONFIG_ACPI_HOTPLUG_CPU 292 /* Arch dependent functions for cpu hotplug support */ 293 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 294 int *pcpu); 295 int acpi_unmap_cpu(int cpu); 296 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 297 298 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 299 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 300 #endif 301 302 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 303 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 304 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 305 void acpi_irq_stats_init(void); 306 extern u32 acpi_irq_handled; 307 extern u32 acpi_irq_not_handled; 308 extern unsigned int acpi_sci_irq; 309 extern bool acpi_no_s5; 310 #define INVALID_ACPI_IRQ ((unsigned)-1) 311 static inline bool acpi_sci_irq_valid(void) 312 { 313 return acpi_sci_irq != INVALID_ACPI_IRQ; 314 } 315 316 extern int sbf_port; 317 extern unsigned long acpi_realmode_flags; 318 319 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 320 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 321 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 322 323 void acpi_set_irq_model(enum acpi_irq_model_id model, 324 struct fwnode_handle *fwnode); 325 326 #ifdef CONFIG_X86_IO_APIC 327 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 328 #else 329 #define acpi_get_override_irq(gsi, trigger, polarity) (-1) 330 #endif 331 /* 332 * This function undoes the effect of one call to acpi_register_gsi(). 333 * If this matches the last registration, any IRQ resources for gsi 334 * are freed. 335 */ 336 void acpi_unregister_gsi (u32 gsi); 337 338 struct pci_dev; 339 340 int acpi_pci_irq_enable (struct pci_dev *dev); 341 void acpi_penalize_isa_irq(int irq, int active); 342 bool acpi_isa_irq_available(int irq); 343 #ifdef CONFIG_PCI 344 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 345 #else 346 static inline void acpi_penalize_sci_irq(int irq, int trigger, 347 int polarity) 348 { 349 } 350 #endif 351 void acpi_pci_irq_disable (struct pci_dev *dev); 352 353 extern int ec_read(u8 addr, u8 *val); 354 extern int ec_write(u8 addr, u8 val); 355 extern int ec_transaction(u8 command, 356 const u8 *wdata, unsigned wdata_len, 357 u8 *rdata, unsigned rdata_len); 358 extern acpi_handle ec_get_handle(void); 359 360 extern bool acpi_is_pnp_device(struct acpi_device *); 361 362 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 363 364 typedef void (*wmi_notify_handler) (u32 value, void *context); 365 366 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 367 u32 method_id, 368 const struct acpi_buffer *in, 369 struct acpi_buffer *out); 370 extern acpi_status wmi_query_block(const char *guid, u8 instance, 371 struct acpi_buffer *out); 372 extern acpi_status wmi_set_block(const char *guid, u8 instance, 373 const struct acpi_buffer *in); 374 extern acpi_status wmi_install_notify_handler(const char *guid, 375 wmi_notify_handler handler, void *data); 376 extern acpi_status wmi_remove_notify_handler(const char *guid); 377 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 378 extern bool wmi_has_guid(const char *guid); 379 380 #endif /* CONFIG_ACPI_WMI */ 381 382 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 383 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 384 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 385 #define ACPI_VIDEO_BACKLIGHT 0x0008 386 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 387 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 388 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 389 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 390 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 391 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 392 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 393 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 394 395 extern char acpi_video_backlight_string[]; 396 extern long acpi_is_video_device(acpi_handle handle); 397 extern int acpi_blacklisted(void); 398 extern void acpi_osi_setup(char *str); 399 extern bool acpi_osi_is_win8(void); 400 401 #ifdef CONFIG_ACPI_NUMA 402 int acpi_map_pxm_to_online_node(int pxm); 403 int acpi_get_node(acpi_handle handle); 404 #else 405 static inline int acpi_map_pxm_to_online_node(int pxm) 406 { 407 return 0; 408 } 409 static inline int acpi_get_node(acpi_handle handle) 410 { 411 return 0; 412 } 413 #endif 414 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 415 416 extern int pnpacpi_disabled; 417 418 #define PXM_INVAL (-1) 419 420 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 421 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 422 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 423 struct resource_win *win); 424 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 425 struct resource_win *win); 426 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 427 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 428 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 429 struct resource *res); 430 431 void acpi_dev_free_resource_list(struct list_head *list); 432 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 433 int (*preproc)(struct acpi_resource *, void *), 434 void *preproc_data); 435 int acpi_dev_get_dma_resources(struct acpi_device *adev, 436 struct list_head *list); 437 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 438 unsigned long types); 439 440 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 441 void *arg) 442 { 443 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 444 } 445 446 struct acpi_device *acpi_resource_consumer(struct resource *res); 447 448 int acpi_check_resource_conflict(const struct resource *res); 449 450 int acpi_check_region(resource_size_t start, resource_size_t n, 451 const char *name); 452 453 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 454 u32 level); 455 456 int acpi_resources_are_enforced(void); 457 458 #ifdef CONFIG_HIBERNATION 459 void __init acpi_no_s4_hw_signature(void); 460 #endif 461 462 #ifdef CONFIG_PM_SLEEP 463 void __init acpi_old_suspend_ordering(void); 464 void __init acpi_nvs_nosave(void); 465 void __init acpi_nvs_nosave_s3(void); 466 void __init acpi_sleep_no_blacklist(void); 467 #endif /* CONFIG_PM_SLEEP */ 468 469 struct acpi_osc_context { 470 char *uuid_str; /* UUID string */ 471 int rev; 472 struct acpi_buffer cap; /* list of DWORD capabilities */ 473 struct acpi_buffer ret; /* free by caller if success */ 474 }; 475 476 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 477 478 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 479 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 480 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 481 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 482 483 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 484 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 485 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 486 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 487 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 488 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 489 490 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 491 #define OSC_SB_PAD_SUPPORT 0x00000001 492 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 493 #define OSC_SB_PR3_SUPPORT 0x00000004 494 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 495 #define OSC_SB_APEI_SUPPORT 0x00000010 496 #define OSC_SB_CPC_SUPPORT 0x00000020 497 #define OSC_SB_CPCV2_SUPPORT 0x00000040 498 #define OSC_SB_PCLPI_SUPPORT 0x00000080 499 #define OSC_SB_OSLPI_SUPPORT 0x00000100 500 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 501 502 extern bool osc_sb_apei_support_acked; 503 extern bool osc_pc_lpi_support_confirmed; 504 505 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 506 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 507 #define OSC_PCI_ASPM_SUPPORT 0x00000002 508 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 509 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 510 #define OSC_PCI_MSI_SUPPORT 0x00000010 511 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 512 513 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 514 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 515 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 516 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 517 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 518 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 519 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 520 #define OSC_PCI_CONTROL_MASKS 0x0000003f 521 522 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 523 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 524 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 525 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 526 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 527 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 528 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 529 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 530 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 531 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 532 533 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 534 u32 *mask, u32 req); 535 536 /* Enable _OST when all relevant hotplug operations are enabled */ 537 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 538 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 539 defined(CONFIG_ACPI_CONTAINER) 540 #define ACPI_HOTPLUG_OST 541 #endif 542 543 /* _OST Source Event Code (OSPM Action) */ 544 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 545 #define ACPI_OST_EC_OSPM_EJECT 0x103 546 #define ACPI_OST_EC_OSPM_INSERTION 0x200 547 548 /* _OST General Processing Status Code */ 549 #define ACPI_OST_SC_SUCCESS 0x0 550 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 551 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 552 553 /* _OST OS Shutdown Processing (0x100) Status Code */ 554 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 555 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 556 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 557 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 558 559 /* _OST Ejection Request (0x3, 0x103) Status Code */ 560 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 561 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 562 #define ACPI_OST_SC_DEVICE_BUSY 0x82 563 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 564 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 565 566 /* _OST Insertion Request (0x200) Status Code */ 567 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 568 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 569 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 570 571 enum acpi_predicate { 572 all_versions, 573 less_than_or_equal, 574 equal, 575 greater_than_or_equal, 576 }; 577 578 /* Table must be terminted by a NULL entry */ 579 struct acpi_platform_list { 580 char oem_id[ACPI_OEM_ID_SIZE+1]; 581 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 582 u32 oem_revision; 583 char *table; 584 enum acpi_predicate pred; 585 char *reason; 586 u32 data; 587 }; 588 int acpi_match_platform_list(const struct acpi_platform_list *plat); 589 590 extern void acpi_early_init(void); 591 extern void acpi_subsystem_init(void); 592 extern void arch_post_acpi_subsys_init(void); 593 594 extern int acpi_nvs_register(__u64 start, __u64 size); 595 596 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 597 void *data); 598 599 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 600 const struct device *dev); 601 602 const void *acpi_device_get_match_data(const struct device *dev); 603 extern bool acpi_driver_match_device(struct device *dev, 604 const struct device_driver *drv); 605 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 606 int acpi_device_modalias(struct device *, char *, int); 607 void acpi_walk_dep_device_list(acpi_handle handle); 608 609 struct platform_device *acpi_create_platform_device(struct acpi_device *, 610 struct property_entry *); 611 #define ACPI_PTR(_ptr) (_ptr) 612 613 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 614 { 615 adev->flags.visited = true; 616 } 617 618 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 619 { 620 adev->flags.visited = false; 621 } 622 623 enum acpi_reconfig_event { 624 ACPI_RECONFIG_DEVICE_ADD = 0, 625 ACPI_RECONFIG_DEVICE_REMOVE, 626 }; 627 628 int acpi_reconfig_notifier_register(struct notifier_block *nb); 629 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 630 631 #ifdef CONFIG_ACPI_GTDT 632 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 633 int acpi_gtdt_map_ppi(int type); 634 bool acpi_gtdt_c3stop(int type); 635 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 636 #endif 637 638 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 639 static inline u64 acpi_arch_get_root_pointer(void) 640 { 641 return 0; 642 } 643 #endif 644 645 #else /* !CONFIG_ACPI */ 646 647 #define acpi_disabled 1 648 649 #define ACPI_COMPANION(dev) (NULL) 650 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 651 #define ACPI_HANDLE(dev) (NULL) 652 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 653 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 654 655 struct fwnode_handle; 656 657 static inline bool acpi_dev_found(const char *hid) 658 { 659 return false; 660 } 661 662 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 663 { 664 return false; 665 } 666 667 static inline const char * 668 acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) 669 { 670 return NULL; 671 } 672 673 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 674 { 675 return false; 676 } 677 678 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 679 { 680 return false; 681 } 682 683 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 684 { 685 return NULL; 686 } 687 688 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 689 { 690 return false; 691 } 692 693 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 694 { 695 return NULL; 696 } 697 698 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 699 const char *name) 700 { 701 return false; 702 } 703 704 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 705 { 706 return NULL; 707 } 708 709 static inline bool has_acpi_companion(struct device *dev) 710 { 711 return false; 712 } 713 714 static inline void acpi_preset_companion(struct device *dev, 715 struct acpi_device *parent, u64 addr) 716 { 717 } 718 719 static inline const char *acpi_dev_name(struct acpi_device *adev) 720 { 721 return NULL; 722 } 723 724 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 725 { 726 return NULL; 727 } 728 729 static inline void acpi_early_init(void) { } 730 static inline void acpi_subsystem_init(void) { } 731 732 static inline int early_acpi_boot_init(void) 733 { 734 return 0; 735 } 736 static inline int acpi_boot_init(void) 737 { 738 return 0; 739 } 740 741 static inline void acpi_boot_table_init(void) 742 { 743 return; 744 } 745 746 static inline int acpi_mps_check(void) 747 { 748 return 0; 749 } 750 751 static inline int acpi_check_resource_conflict(struct resource *res) 752 { 753 return 0; 754 } 755 756 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 757 const char *name) 758 { 759 return 0; 760 } 761 762 struct acpi_table_header; 763 static inline int acpi_table_parse(char *id, 764 int (*handler)(struct acpi_table_header *)) 765 { 766 return -ENODEV; 767 } 768 769 static inline int acpi_nvs_register(__u64 start, __u64 size) 770 { 771 return 0; 772 } 773 774 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 775 void *data) 776 { 777 return 0; 778 } 779 780 struct acpi_device_id; 781 782 static inline const struct acpi_device_id *acpi_match_device( 783 const struct acpi_device_id *ids, const struct device *dev) 784 { 785 return NULL; 786 } 787 788 static inline const void *acpi_device_get_match_data(const struct device *dev) 789 { 790 return NULL; 791 } 792 793 static inline bool acpi_driver_match_device(struct device *dev, 794 const struct device_driver *drv) 795 { 796 return false; 797 } 798 799 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 800 const guid_t *guid, 801 int rev, int func, 802 union acpi_object *argv4) 803 { 804 return NULL; 805 } 806 807 static inline int acpi_device_uevent_modalias(struct device *dev, 808 struct kobj_uevent_env *env) 809 { 810 return -ENODEV; 811 } 812 813 static inline int acpi_device_modalias(struct device *dev, 814 char *buf, int size) 815 { 816 return -ENODEV; 817 } 818 819 static inline bool acpi_dma_supported(struct acpi_device *adev) 820 { 821 return false; 822 } 823 824 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 825 { 826 return DEV_DMA_NOT_SUPPORTED; 827 } 828 829 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 830 u64 *offset, u64 *size) 831 { 832 return -ENODEV; 833 } 834 835 static inline int acpi_dma_configure(struct device *dev, 836 enum dev_dma_attr attr) 837 { 838 return 0; 839 } 840 841 #define ACPI_PTR(_ptr) (NULL) 842 843 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 844 { 845 } 846 847 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 848 { 849 } 850 851 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 852 { 853 return -EINVAL; 854 } 855 856 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 857 { 858 return -EINVAL; 859 } 860 861 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 862 { 863 return NULL; 864 } 865 866 #endif /* !CONFIG_ACPI */ 867 868 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 869 int acpi_ioapic_add(acpi_handle root); 870 #else 871 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 872 #endif 873 874 #ifdef CONFIG_ACPI 875 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 876 u32 pm1a_ctrl, u32 pm1b_ctrl)); 877 878 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 879 u32 pm1a_control, u32 pm1b_control); 880 881 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 882 u32 val_a, u32 val_b)); 883 884 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 885 u32 val_a, u32 val_b); 886 887 #ifdef CONFIG_X86 888 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 889 #else 890 static inline void arch_reserve_mem_area(acpi_physical_address addr, 891 size_t size) 892 { 893 } 894 #endif /* CONFIG_X86 */ 895 #else 896 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 897 #endif 898 899 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 900 int acpi_dev_suspend(struct device *dev, bool wakeup); 901 int acpi_dev_resume(struct device *dev); 902 int acpi_subsys_runtime_suspend(struct device *dev); 903 int acpi_subsys_runtime_resume(struct device *dev); 904 int acpi_dev_pm_attach(struct device *dev, bool power_on); 905 #else 906 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 907 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 908 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 909 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 910 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 911 { 912 return 0; 913 } 914 #endif 915 916 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 917 int acpi_dev_suspend_late(struct device *dev); 918 int acpi_subsys_prepare(struct device *dev); 919 void acpi_subsys_complete(struct device *dev); 920 int acpi_subsys_suspend_late(struct device *dev); 921 int acpi_subsys_suspend_noirq(struct device *dev); 922 int acpi_subsys_resume_noirq(struct device *dev); 923 int acpi_subsys_resume_early(struct device *dev); 924 int acpi_subsys_suspend(struct device *dev); 925 int acpi_subsys_freeze(struct device *dev); 926 int acpi_subsys_freeze_late(struct device *dev); 927 int acpi_subsys_freeze_noirq(struct device *dev); 928 int acpi_subsys_thaw_noirq(struct device *dev); 929 #else 930 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 931 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 932 static inline void acpi_subsys_complete(struct device *dev) {} 933 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 934 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 935 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; } 936 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 937 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 938 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 939 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; } 940 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; } 941 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; } 942 #endif 943 944 #ifdef CONFIG_ACPI 945 __printf(3, 4) 946 void acpi_handle_printk(const char *level, acpi_handle handle, 947 const char *fmt, ...); 948 #else /* !CONFIG_ACPI */ 949 static inline __printf(3, 4) void 950 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 951 #endif /* !CONFIG_ACPI */ 952 953 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 954 __printf(3, 4) 955 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 956 #endif 957 958 /* 959 * acpi_handle_<level>: Print message with ACPI prefix and object path 960 * 961 * These interfaces acquire the global namespace mutex to obtain an object 962 * path. In interrupt context, it shows the object path as <n/a>. 963 */ 964 #define acpi_handle_emerg(handle, fmt, ...) \ 965 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 966 #define acpi_handle_alert(handle, fmt, ...) \ 967 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 968 #define acpi_handle_crit(handle, fmt, ...) \ 969 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 970 #define acpi_handle_err(handle, fmt, ...) \ 971 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 972 #define acpi_handle_warn(handle, fmt, ...) \ 973 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 974 #define acpi_handle_notice(handle, fmt, ...) \ 975 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 976 #define acpi_handle_info(handle, fmt, ...) \ 977 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 978 979 #if defined(DEBUG) 980 #define acpi_handle_debug(handle, fmt, ...) \ 981 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 982 #else 983 #if defined(CONFIG_DYNAMIC_DEBUG) 984 #define acpi_handle_debug(handle, fmt, ...) \ 985 _dynamic_func_call(fmt, __acpi_handle_debug, \ 986 handle, pr_fmt(fmt), ##__VA_ARGS__) 987 #else 988 #define acpi_handle_debug(handle, fmt, ...) \ 989 ({ \ 990 if (0) \ 991 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 992 0; \ 993 }) 994 #endif 995 #endif 996 997 struct acpi_gpio_params { 998 unsigned int crs_entry_index; 999 unsigned int line_index; 1000 bool active_low; 1001 }; 1002 1003 struct acpi_gpio_mapping { 1004 const char *name; 1005 const struct acpi_gpio_params *data; 1006 unsigned int size; 1007 1008 /* Ignore IoRestriction field */ 1009 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) 1010 /* 1011 * When ACPI GPIO mapping table is in use the index parameter inside it 1012 * refers to the GPIO resource in _CRS method. That index has no 1013 * distinction of actual type of the resource. When consumer wants to 1014 * get GpioIo type explicitly, this quirk may be used. 1015 */ 1016 #define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1) 1017 1018 unsigned int quirks; 1019 }; 1020 1021 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1022 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1023 const struct acpi_gpio_mapping *gpios); 1024 1025 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 1026 { 1027 if (adev) 1028 adev->driver_gpios = NULL; 1029 } 1030 1031 int devm_acpi_dev_add_driver_gpios(struct device *dev, 1032 const struct acpi_gpio_mapping *gpios); 1033 void devm_acpi_dev_remove_driver_gpios(struct device *dev); 1034 1035 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1036 struct acpi_resource_gpio **agpio); 1037 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1038 #else 1039 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1040 const struct acpi_gpio_mapping *gpios) 1041 { 1042 return -ENXIO; 1043 } 1044 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 1045 1046 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev, 1047 const struct acpi_gpio_mapping *gpios) 1048 { 1049 return -ENXIO; 1050 } 1051 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {} 1052 1053 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1054 struct acpi_resource_gpio **agpio) 1055 { 1056 return false; 1057 } 1058 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1059 { 1060 return -ENXIO; 1061 } 1062 #endif 1063 1064 /* Device properties */ 1065 1066 #ifdef CONFIG_ACPI 1067 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1068 acpi_object_type type, const union acpi_object **obj); 1069 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1070 const char *name, size_t index, size_t num_args, 1071 struct fwnode_reference_args *args); 1072 1073 static inline int acpi_node_get_property_reference( 1074 const struct fwnode_handle *fwnode, 1075 const char *name, size_t index, 1076 struct fwnode_reference_args *args) 1077 { 1078 return __acpi_node_get_property_reference(fwnode, name, index, 1079 NR_FWNODE_REFERENCE_ARGS, args); 1080 } 1081 1082 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1083 { 1084 return !list_empty(&adev->data.properties); 1085 } 1086 1087 struct acpi_device_properties * 1088 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1089 const union acpi_object *properties); 1090 1091 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1092 void **valptr); 1093 int acpi_dev_prop_read_single(struct acpi_device *adev, 1094 const char *propname, enum dev_prop_type proptype, 1095 void *val); 1096 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1097 const char *propname, enum dev_prop_type proptype, 1098 void *val, size_t nval); 1099 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1100 enum dev_prop_type proptype, void *val, size_t nval); 1101 1102 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1103 struct fwnode_handle *child); 1104 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1105 1106 struct acpi_probe_entry; 1107 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1108 struct acpi_probe_entry *); 1109 1110 #define ACPI_TABLE_ID_LEN 5 1111 1112 /** 1113 * struct acpi_probe_entry - boot-time probing entry 1114 * @id: ACPI table name 1115 * @type: Optional subtable type to match 1116 * (if @id contains subtables) 1117 * @subtable_valid: Optional callback to check the validity of 1118 * the subtable 1119 * @probe_table: Callback to the driver being probed when table 1120 * match is successful 1121 * @probe_subtbl: Callback to the driver being probed when table and 1122 * subtable match (and optional callback is successful) 1123 * @driver_data: Sideband data provided back to the driver 1124 */ 1125 struct acpi_probe_entry { 1126 __u8 id[ACPI_TABLE_ID_LEN]; 1127 __u8 type; 1128 acpi_probe_entry_validate_subtbl subtable_valid; 1129 union { 1130 acpi_tbl_table_handler probe_table; 1131 acpi_tbl_entry_handler probe_subtbl; 1132 }; 1133 kernel_ulong_t driver_data; 1134 }; 1135 1136 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1137 static const struct acpi_probe_entry __acpi_probe_##name \ 1138 __used __section(__##table##_acpi_probe_table) \ 1139 = { \ 1140 .id = table_id, \ 1141 .type = subtable, \ 1142 .subtable_valid = valid, \ 1143 .probe_table = (acpi_tbl_table_handler)fn, \ 1144 .driver_data = data, \ 1145 } 1146 1147 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1148 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1149 1150 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1151 1152 #define acpi_probe_device_table(t) \ 1153 ({ \ 1154 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1155 ACPI_PROBE_TABLE_END(t); \ 1156 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1157 (&ACPI_PROBE_TABLE_END(t) - \ 1158 &ACPI_PROBE_TABLE(t))); \ 1159 }) 1160 #else 1161 static inline int acpi_dev_get_property(struct acpi_device *adev, 1162 const char *name, acpi_object_type type, 1163 const union acpi_object **obj) 1164 { 1165 return -ENXIO; 1166 } 1167 1168 static inline int 1169 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1170 const char *name, size_t index, size_t num_args, 1171 struct fwnode_reference_args *args) 1172 { 1173 return -ENXIO; 1174 } 1175 1176 static inline int 1177 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1178 const char *name, size_t index, 1179 struct fwnode_reference_args *args) 1180 { 1181 return -ENXIO; 1182 } 1183 1184 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1185 const char *propname, 1186 void **valptr) 1187 { 1188 return -ENXIO; 1189 } 1190 1191 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1192 const char *propname, 1193 void **valptr) 1194 { 1195 return -ENXIO; 1196 } 1197 1198 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1199 const char *propname, 1200 enum dev_prop_type proptype, 1201 void *val) 1202 { 1203 return -ENXIO; 1204 } 1205 1206 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1207 const char *propname, 1208 enum dev_prop_type proptype, 1209 void *val, size_t nval) 1210 { 1211 return -ENXIO; 1212 } 1213 1214 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1215 const char *propname, 1216 enum dev_prop_type proptype, 1217 void *val, size_t nval) 1218 { 1219 return -ENXIO; 1220 } 1221 1222 static inline struct fwnode_handle * 1223 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1224 struct fwnode_handle *child) 1225 { 1226 return NULL; 1227 } 1228 1229 static inline struct fwnode_handle * 1230 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1231 { 1232 return NULL; 1233 } 1234 1235 static inline struct fwnode_handle * 1236 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1237 struct fwnode_handle *prev) 1238 { 1239 return ERR_PTR(-ENXIO); 1240 } 1241 1242 static inline int 1243 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1244 struct fwnode_handle **remote, 1245 struct fwnode_handle **port, 1246 struct fwnode_handle **endpoint) 1247 { 1248 return -ENXIO; 1249 } 1250 1251 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1252 static const void * __acpi_table_##name[] \ 1253 __attribute__((unused)) \ 1254 = { (void *) table_id, \ 1255 (void *) subtable, \ 1256 (void *) valid, \ 1257 (void *) fn, \ 1258 (void *) data } 1259 1260 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1261 #endif 1262 1263 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1264 void acpi_table_upgrade(void); 1265 #else 1266 static inline void acpi_table_upgrade(void) { } 1267 #endif 1268 1269 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1270 extern bool acpi_has_watchdog(void); 1271 #else 1272 static inline bool acpi_has_watchdog(void) { return false; } 1273 #endif 1274 1275 #ifdef CONFIG_ACPI_SPCR_TABLE 1276 extern bool qdf2400_e44_present; 1277 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1278 #else 1279 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1280 { 1281 return 0; 1282 } 1283 #endif 1284 1285 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1286 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1287 #else 1288 static inline 1289 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1290 { 1291 return -EINVAL; 1292 } 1293 #endif 1294 1295 #ifdef CONFIG_ACPI_LPIT 1296 int lpit_read_residency_count_address(u64 *address); 1297 #else 1298 static inline int lpit_read_residency_count_address(u64 *address) 1299 { 1300 return -EINVAL; 1301 } 1302 #endif 1303 1304 #ifdef CONFIG_ACPI_PPTT 1305 int find_acpi_cpu_topology(unsigned int cpu, int level); 1306 int find_acpi_cpu_topology_package(unsigned int cpu); 1307 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1308 #else 1309 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1310 { 1311 return -EINVAL; 1312 } 1313 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1314 { 1315 return -EINVAL; 1316 } 1317 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1318 { 1319 return -EINVAL; 1320 } 1321 #endif 1322 1323 #ifdef CONFIG_ACPI 1324 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1325 #else 1326 static inline int 1327 acpi_platform_notify(struct device *dev, enum kobject_action action) 1328 { 1329 return 0; 1330 } 1331 #endif 1332 1333 #endif /*_LINUX_ACPI_H*/ 1334