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_map_pxm_to_node(int pxm); 404 int acpi_get_node(acpi_handle handle); 405 #else 406 static inline int acpi_map_pxm_to_online_node(int pxm) 407 { 408 return 0; 409 } 410 static inline int acpi_map_pxm_to_node(int pxm) 411 { 412 return 0; 413 } 414 static inline int acpi_get_node(acpi_handle handle) 415 { 416 return 0; 417 } 418 #endif 419 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 420 421 extern int pnpacpi_disabled; 422 423 #define PXM_INVAL (-1) 424 425 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 426 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 427 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 428 struct resource_win *win); 429 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 430 struct resource_win *win); 431 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 432 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 433 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 434 struct resource *res); 435 436 void acpi_dev_free_resource_list(struct list_head *list); 437 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 438 int (*preproc)(struct acpi_resource *, void *), 439 void *preproc_data); 440 int acpi_dev_get_dma_resources(struct acpi_device *adev, 441 struct list_head *list); 442 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 443 unsigned long types); 444 445 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 446 void *arg) 447 { 448 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 449 } 450 451 struct acpi_device *acpi_resource_consumer(struct resource *res); 452 453 int acpi_check_resource_conflict(const struct resource *res); 454 455 int acpi_check_region(resource_size_t start, resource_size_t n, 456 const char *name); 457 458 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 459 u32 level); 460 461 int acpi_resources_are_enforced(void); 462 463 #ifdef CONFIG_HIBERNATION 464 void __init acpi_no_s4_hw_signature(void); 465 #endif 466 467 #ifdef CONFIG_PM_SLEEP 468 void __init acpi_old_suspend_ordering(void); 469 void __init acpi_nvs_nosave(void); 470 void __init acpi_nvs_nosave_s3(void); 471 void __init acpi_sleep_no_blacklist(void); 472 #endif /* CONFIG_PM_SLEEP */ 473 474 struct acpi_osc_context { 475 char *uuid_str; /* UUID string */ 476 int rev; 477 struct acpi_buffer cap; /* list of DWORD capabilities */ 478 struct acpi_buffer ret; /* free by caller if success */ 479 }; 480 481 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 482 483 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 484 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 485 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 486 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 487 488 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 489 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 490 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 491 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 492 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 493 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 494 495 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 496 #define OSC_SB_PAD_SUPPORT 0x00000001 497 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 498 #define OSC_SB_PR3_SUPPORT 0x00000004 499 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 500 #define OSC_SB_APEI_SUPPORT 0x00000010 501 #define OSC_SB_CPC_SUPPORT 0x00000020 502 #define OSC_SB_CPCV2_SUPPORT 0x00000040 503 #define OSC_SB_PCLPI_SUPPORT 0x00000080 504 #define OSC_SB_OSLPI_SUPPORT 0x00000100 505 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 506 507 extern bool osc_sb_apei_support_acked; 508 extern bool osc_pc_lpi_support_confirmed; 509 510 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 511 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 512 #define OSC_PCI_ASPM_SUPPORT 0x00000002 513 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 514 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 515 #define OSC_PCI_MSI_SUPPORT 0x00000010 516 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 517 518 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 519 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 520 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 521 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 522 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 523 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 524 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 525 #define OSC_PCI_CONTROL_MASKS 0x0000003f 526 527 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 528 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 529 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 530 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 531 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 532 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 533 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 534 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 535 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 536 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 537 538 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 539 u32 *mask, u32 req); 540 541 /* Enable _OST when all relevant hotplug operations are enabled */ 542 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 543 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 544 defined(CONFIG_ACPI_CONTAINER) 545 #define ACPI_HOTPLUG_OST 546 #endif 547 548 /* _OST Source Event Code (OSPM Action) */ 549 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 550 #define ACPI_OST_EC_OSPM_EJECT 0x103 551 #define ACPI_OST_EC_OSPM_INSERTION 0x200 552 553 /* _OST General Processing Status Code */ 554 #define ACPI_OST_SC_SUCCESS 0x0 555 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 556 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 557 558 /* _OST OS Shutdown Processing (0x100) Status Code */ 559 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 560 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 561 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 562 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 563 564 /* _OST Ejection Request (0x3, 0x103) Status Code */ 565 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 566 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 567 #define ACPI_OST_SC_DEVICE_BUSY 0x82 568 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 569 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 570 571 /* _OST Insertion Request (0x200) Status Code */ 572 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 573 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 574 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 575 576 enum acpi_predicate { 577 all_versions, 578 less_than_or_equal, 579 equal, 580 greater_than_or_equal, 581 }; 582 583 /* Table must be terminted by a NULL entry */ 584 struct acpi_platform_list { 585 char oem_id[ACPI_OEM_ID_SIZE+1]; 586 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 587 u32 oem_revision; 588 char *table; 589 enum acpi_predicate pred; 590 char *reason; 591 u32 data; 592 }; 593 int acpi_match_platform_list(const struct acpi_platform_list *plat); 594 595 extern void acpi_early_init(void); 596 extern void acpi_subsystem_init(void); 597 extern void arch_post_acpi_subsys_init(void); 598 599 extern int acpi_nvs_register(__u64 start, __u64 size); 600 601 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 602 void *data); 603 604 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 605 const struct device *dev); 606 607 const void *acpi_device_get_match_data(const struct device *dev); 608 extern bool acpi_driver_match_device(struct device *dev, 609 const struct device_driver *drv); 610 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 611 int acpi_device_modalias(struct device *, char *, int); 612 void acpi_walk_dep_device_list(acpi_handle handle); 613 614 struct platform_device *acpi_create_platform_device(struct acpi_device *, 615 struct property_entry *); 616 #define ACPI_PTR(_ptr) (_ptr) 617 618 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 619 { 620 adev->flags.visited = true; 621 } 622 623 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 624 { 625 adev->flags.visited = false; 626 } 627 628 enum acpi_reconfig_event { 629 ACPI_RECONFIG_DEVICE_ADD = 0, 630 ACPI_RECONFIG_DEVICE_REMOVE, 631 }; 632 633 int acpi_reconfig_notifier_register(struct notifier_block *nb); 634 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 635 636 #ifdef CONFIG_ACPI_GTDT 637 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 638 int acpi_gtdt_map_ppi(int type); 639 bool acpi_gtdt_c3stop(int type); 640 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 641 #endif 642 643 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 644 static inline u64 acpi_arch_get_root_pointer(void) 645 { 646 return 0; 647 } 648 #endif 649 650 #else /* !CONFIG_ACPI */ 651 652 #define acpi_disabled 1 653 654 #define ACPI_COMPANION(dev) (NULL) 655 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 656 #define ACPI_HANDLE(dev) (NULL) 657 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 658 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 659 660 struct fwnode_handle; 661 662 static inline bool acpi_dev_found(const char *hid) 663 { 664 return false; 665 } 666 667 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 668 { 669 return false; 670 } 671 672 static inline struct acpi_device * 673 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 674 { 675 return NULL; 676 } 677 678 static inline void acpi_dev_put(struct acpi_device *adev) {} 679 680 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 681 { 682 return false; 683 } 684 685 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 686 { 687 return false; 688 } 689 690 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 691 { 692 return NULL; 693 } 694 695 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 696 { 697 return false; 698 } 699 700 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 701 { 702 return NULL; 703 } 704 705 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 706 const char *name) 707 { 708 return false; 709 } 710 711 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 712 { 713 return NULL; 714 } 715 716 static inline bool has_acpi_companion(struct device *dev) 717 { 718 return false; 719 } 720 721 static inline void acpi_preset_companion(struct device *dev, 722 struct acpi_device *parent, u64 addr) 723 { 724 } 725 726 static inline const char *acpi_dev_name(struct acpi_device *adev) 727 { 728 return NULL; 729 } 730 731 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 732 { 733 return NULL; 734 } 735 736 static inline void acpi_early_init(void) { } 737 static inline void acpi_subsystem_init(void) { } 738 739 static inline int early_acpi_boot_init(void) 740 { 741 return 0; 742 } 743 static inline int acpi_boot_init(void) 744 { 745 return 0; 746 } 747 748 static inline void acpi_boot_table_init(void) 749 { 750 return; 751 } 752 753 static inline int acpi_mps_check(void) 754 { 755 return 0; 756 } 757 758 static inline int acpi_check_resource_conflict(struct resource *res) 759 { 760 return 0; 761 } 762 763 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 764 const char *name) 765 { 766 return 0; 767 } 768 769 struct acpi_table_header; 770 static inline int acpi_table_parse(char *id, 771 int (*handler)(struct acpi_table_header *)) 772 { 773 return -ENODEV; 774 } 775 776 static inline int acpi_nvs_register(__u64 start, __u64 size) 777 { 778 return 0; 779 } 780 781 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 782 void *data) 783 { 784 return 0; 785 } 786 787 struct acpi_device_id; 788 789 static inline const struct acpi_device_id *acpi_match_device( 790 const struct acpi_device_id *ids, const struct device *dev) 791 { 792 return NULL; 793 } 794 795 static inline const void *acpi_device_get_match_data(const struct device *dev) 796 { 797 return NULL; 798 } 799 800 static inline bool acpi_driver_match_device(struct device *dev, 801 const struct device_driver *drv) 802 { 803 return false; 804 } 805 806 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 807 const guid_t *guid, 808 int rev, int func, 809 union acpi_object *argv4) 810 { 811 return NULL; 812 } 813 814 static inline int acpi_device_uevent_modalias(struct device *dev, 815 struct kobj_uevent_env *env) 816 { 817 return -ENODEV; 818 } 819 820 static inline int acpi_device_modalias(struct device *dev, 821 char *buf, int size) 822 { 823 return -ENODEV; 824 } 825 826 static inline bool acpi_dma_supported(struct acpi_device *adev) 827 { 828 return false; 829 } 830 831 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 832 { 833 return DEV_DMA_NOT_SUPPORTED; 834 } 835 836 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 837 u64 *offset, u64 *size) 838 { 839 return -ENODEV; 840 } 841 842 static inline int acpi_dma_configure(struct device *dev, 843 enum dev_dma_attr attr) 844 { 845 return 0; 846 } 847 848 #define ACPI_PTR(_ptr) (NULL) 849 850 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 851 { 852 } 853 854 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 855 { 856 } 857 858 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 859 { 860 return -EINVAL; 861 } 862 863 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 864 { 865 return -EINVAL; 866 } 867 868 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 869 { 870 return NULL; 871 } 872 873 #endif /* !CONFIG_ACPI */ 874 875 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 876 int acpi_ioapic_add(acpi_handle root); 877 #else 878 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 879 #endif 880 881 #ifdef CONFIG_ACPI 882 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 883 u32 pm1a_ctrl, u32 pm1b_ctrl)); 884 885 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 886 u32 pm1a_control, u32 pm1b_control); 887 888 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 889 u32 val_a, u32 val_b)); 890 891 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 892 u32 val_a, u32 val_b); 893 894 #ifdef CONFIG_X86 895 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 896 #else 897 static inline void arch_reserve_mem_area(acpi_physical_address addr, 898 size_t size) 899 { 900 } 901 #endif /* CONFIG_X86 */ 902 #else 903 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 904 #endif 905 906 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 907 int acpi_dev_suspend(struct device *dev, bool wakeup); 908 int acpi_dev_resume(struct device *dev); 909 int acpi_subsys_runtime_suspend(struct device *dev); 910 int acpi_subsys_runtime_resume(struct device *dev); 911 int acpi_dev_pm_attach(struct device *dev, bool power_on); 912 #else 913 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 914 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 915 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 916 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 917 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 918 { 919 return 0; 920 } 921 #endif 922 923 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 924 int acpi_dev_suspend_late(struct device *dev); 925 int acpi_subsys_prepare(struct device *dev); 926 void acpi_subsys_complete(struct device *dev); 927 int acpi_subsys_suspend_late(struct device *dev); 928 int acpi_subsys_suspend_noirq(struct device *dev); 929 int acpi_subsys_resume_noirq(struct device *dev); 930 int acpi_subsys_resume_early(struct device *dev); 931 int acpi_subsys_suspend(struct device *dev); 932 int acpi_subsys_freeze(struct device *dev); 933 int acpi_subsys_freeze_late(struct device *dev); 934 int acpi_subsys_freeze_noirq(struct device *dev); 935 int acpi_subsys_thaw_noirq(struct device *dev); 936 #else 937 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 938 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 939 static inline void acpi_subsys_complete(struct device *dev) {} 940 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 941 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 942 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; } 943 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 944 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 945 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 946 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; } 947 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; } 948 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; } 949 #endif 950 951 #ifdef CONFIG_ACPI 952 __printf(3, 4) 953 void acpi_handle_printk(const char *level, acpi_handle handle, 954 const char *fmt, ...); 955 #else /* !CONFIG_ACPI */ 956 static inline __printf(3, 4) void 957 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 958 #endif /* !CONFIG_ACPI */ 959 960 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 961 __printf(3, 4) 962 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 963 #endif 964 965 /* 966 * acpi_handle_<level>: Print message with ACPI prefix and object path 967 * 968 * These interfaces acquire the global namespace mutex to obtain an object 969 * path. In interrupt context, it shows the object path as <n/a>. 970 */ 971 #define acpi_handle_emerg(handle, fmt, ...) \ 972 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 973 #define acpi_handle_alert(handle, fmt, ...) \ 974 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 975 #define acpi_handle_crit(handle, fmt, ...) \ 976 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 977 #define acpi_handle_err(handle, fmt, ...) \ 978 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 979 #define acpi_handle_warn(handle, fmt, ...) \ 980 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 981 #define acpi_handle_notice(handle, fmt, ...) \ 982 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 983 #define acpi_handle_info(handle, fmt, ...) \ 984 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 985 986 #if defined(DEBUG) 987 #define acpi_handle_debug(handle, fmt, ...) \ 988 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 989 #else 990 #if defined(CONFIG_DYNAMIC_DEBUG) 991 #define acpi_handle_debug(handle, fmt, ...) \ 992 _dynamic_func_call(fmt, __acpi_handle_debug, \ 993 handle, pr_fmt(fmt), ##__VA_ARGS__) 994 #else 995 #define acpi_handle_debug(handle, fmt, ...) \ 996 ({ \ 997 if (0) \ 998 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 999 0; \ 1000 }) 1001 #endif 1002 #endif 1003 1004 struct acpi_gpio_params { 1005 unsigned int crs_entry_index; 1006 unsigned int line_index; 1007 bool active_low; 1008 }; 1009 1010 struct acpi_gpio_mapping { 1011 const char *name; 1012 const struct acpi_gpio_params *data; 1013 unsigned int size; 1014 1015 /* Ignore IoRestriction field */ 1016 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) 1017 /* 1018 * When ACPI GPIO mapping table is in use the index parameter inside it 1019 * refers to the GPIO resource in _CRS method. That index has no 1020 * distinction of actual type of the resource. When consumer wants to 1021 * get GpioIo type explicitly, this quirk may be used. 1022 */ 1023 #define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1) 1024 1025 unsigned int quirks; 1026 }; 1027 1028 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1029 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1030 const struct acpi_gpio_mapping *gpios); 1031 1032 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 1033 { 1034 if (adev) 1035 adev->driver_gpios = NULL; 1036 } 1037 1038 int devm_acpi_dev_add_driver_gpios(struct device *dev, 1039 const struct acpi_gpio_mapping *gpios); 1040 void devm_acpi_dev_remove_driver_gpios(struct device *dev); 1041 1042 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1043 struct acpi_resource_gpio **agpio); 1044 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1045 #else 1046 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1047 const struct acpi_gpio_mapping *gpios) 1048 { 1049 return -ENXIO; 1050 } 1051 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 1052 1053 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev, 1054 const struct acpi_gpio_mapping *gpios) 1055 { 1056 return -ENXIO; 1057 } 1058 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {} 1059 1060 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1061 struct acpi_resource_gpio **agpio) 1062 { 1063 return false; 1064 } 1065 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1066 { 1067 return -ENXIO; 1068 } 1069 #endif 1070 1071 /* Device properties */ 1072 1073 #ifdef CONFIG_ACPI 1074 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1075 acpi_object_type type, const union acpi_object **obj); 1076 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1077 const char *name, size_t index, size_t num_args, 1078 struct fwnode_reference_args *args); 1079 1080 static inline int acpi_node_get_property_reference( 1081 const struct fwnode_handle *fwnode, 1082 const char *name, size_t index, 1083 struct fwnode_reference_args *args) 1084 { 1085 return __acpi_node_get_property_reference(fwnode, name, index, 1086 NR_FWNODE_REFERENCE_ARGS, args); 1087 } 1088 1089 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1090 { 1091 return !list_empty(&adev->data.properties); 1092 } 1093 1094 struct acpi_device_properties * 1095 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1096 const union acpi_object *properties); 1097 1098 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1099 void **valptr); 1100 int acpi_dev_prop_read_single(struct acpi_device *adev, 1101 const char *propname, enum dev_prop_type proptype, 1102 void *val); 1103 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1104 const char *propname, enum dev_prop_type proptype, 1105 void *val, size_t nval); 1106 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1107 enum dev_prop_type proptype, void *val, size_t nval); 1108 1109 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1110 struct fwnode_handle *child); 1111 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1112 1113 struct acpi_probe_entry; 1114 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1115 struct acpi_probe_entry *); 1116 1117 #define ACPI_TABLE_ID_LEN 5 1118 1119 /** 1120 * struct acpi_probe_entry - boot-time probing entry 1121 * @id: ACPI table name 1122 * @type: Optional subtable type to match 1123 * (if @id contains subtables) 1124 * @subtable_valid: Optional callback to check the validity of 1125 * the subtable 1126 * @probe_table: Callback to the driver being probed when table 1127 * match is successful 1128 * @probe_subtbl: Callback to the driver being probed when table and 1129 * subtable match (and optional callback is successful) 1130 * @driver_data: Sideband data provided back to the driver 1131 */ 1132 struct acpi_probe_entry { 1133 __u8 id[ACPI_TABLE_ID_LEN]; 1134 __u8 type; 1135 acpi_probe_entry_validate_subtbl subtable_valid; 1136 union { 1137 acpi_tbl_table_handler probe_table; 1138 acpi_tbl_entry_handler probe_subtbl; 1139 }; 1140 kernel_ulong_t driver_data; 1141 }; 1142 1143 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1144 static const struct acpi_probe_entry __acpi_probe_##name \ 1145 __used __section(__##table##_acpi_probe_table) \ 1146 = { \ 1147 .id = table_id, \ 1148 .type = subtable, \ 1149 .subtable_valid = valid, \ 1150 .probe_table = (acpi_tbl_table_handler)fn, \ 1151 .driver_data = data, \ 1152 } 1153 1154 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1155 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1156 1157 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1158 1159 #define acpi_probe_device_table(t) \ 1160 ({ \ 1161 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1162 ACPI_PROBE_TABLE_END(t); \ 1163 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1164 (&ACPI_PROBE_TABLE_END(t) - \ 1165 &ACPI_PROBE_TABLE(t))); \ 1166 }) 1167 #else 1168 static inline int acpi_dev_get_property(struct acpi_device *adev, 1169 const char *name, acpi_object_type type, 1170 const union acpi_object **obj) 1171 { 1172 return -ENXIO; 1173 } 1174 1175 static inline int 1176 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1177 const char *name, size_t index, size_t num_args, 1178 struct fwnode_reference_args *args) 1179 { 1180 return -ENXIO; 1181 } 1182 1183 static inline int 1184 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1185 const char *name, size_t index, 1186 struct fwnode_reference_args *args) 1187 { 1188 return -ENXIO; 1189 } 1190 1191 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1192 const char *propname, 1193 void **valptr) 1194 { 1195 return -ENXIO; 1196 } 1197 1198 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1199 const char *propname, 1200 void **valptr) 1201 { 1202 return -ENXIO; 1203 } 1204 1205 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1206 const char *propname, 1207 enum dev_prop_type proptype, 1208 void *val) 1209 { 1210 return -ENXIO; 1211 } 1212 1213 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1214 const char *propname, 1215 enum dev_prop_type proptype, 1216 void *val, size_t nval) 1217 { 1218 return -ENXIO; 1219 } 1220 1221 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1222 const char *propname, 1223 enum dev_prop_type proptype, 1224 void *val, size_t nval) 1225 { 1226 return -ENXIO; 1227 } 1228 1229 static inline struct fwnode_handle * 1230 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1231 struct fwnode_handle *child) 1232 { 1233 return NULL; 1234 } 1235 1236 static inline struct fwnode_handle * 1237 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1238 { 1239 return NULL; 1240 } 1241 1242 static inline struct fwnode_handle * 1243 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1244 struct fwnode_handle *prev) 1245 { 1246 return ERR_PTR(-ENXIO); 1247 } 1248 1249 static inline int 1250 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1251 struct fwnode_handle **remote, 1252 struct fwnode_handle **port, 1253 struct fwnode_handle **endpoint) 1254 { 1255 return -ENXIO; 1256 } 1257 1258 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1259 static const void * __acpi_table_##name[] \ 1260 __attribute__((unused)) \ 1261 = { (void *) table_id, \ 1262 (void *) subtable, \ 1263 (void *) valid, \ 1264 (void *) fn, \ 1265 (void *) data } 1266 1267 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1268 #endif 1269 1270 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1271 void acpi_table_upgrade(void); 1272 #else 1273 static inline void acpi_table_upgrade(void) { } 1274 #endif 1275 1276 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1277 extern bool acpi_has_watchdog(void); 1278 #else 1279 static inline bool acpi_has_watchdog(void) { return false; } 1280 #endif 1281 1282 #ifdef CONFIG_ACPI_SPCR_TABLE 1283 extern bool qdf2400_e44_present; 1284 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1285 #else 1286 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1287 { 1288 return 0; 1289 } 1290 #endif 1291 1292 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1293 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1294 #else 1295 static inline 1296 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1297 { 1298 return -EINVAL; 1299 } 1300 #endif 1301 1302 #ifdef CONFIG_ACPI_LPIT 1303 int lpit_read_residency_count_address(u64 *address); 1304 #else 1305 static inline int lpit_read_residency_count_address(u64 *address) 1306 { 1307 return -EINVAL; 1308 } 1309 #endif 1310 1311 #ifdef CONFIG_ACPI_PPTT 1312 int find_acpi_cpu_topology(unsigned int cpu, int level); 1313 int find_acpi_cpu_topology_package(unsigned int cpu); 1314 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1315 #else 1316 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1317 { 1318 return -EINVAL; 1319 } 1320 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1321 { 1322 return -EINVAL; 1323 } 1324 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1325 { 1326 return -EINVAL; 1327 } 1328 #endif 1329 1330 #ifdef CONFIG_ACPI 1331 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1332 #else 1333 static inline int 1334 acpi_platform_notify(struct device *dev, enum kobject_action action) 1335 { 1336 return 0; 1337 } 1338 #endif 1339 1340 #endif /*_LINUX_ACPI_H*/ 1341