1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 6 */ 7 8 #ifndef _LINUX_ACPI_H 9 #define _LINUX_ACPI_H 10 11 #include <linux/errno.h> 12 #include <linux/ioport.h> /* for struct resource */ 13 #include <linux/irqdomain.h> 14 #include <linux/resource_ext.h> 15 #include <linux/device.h> 16 #include <linux/property.h> 17 #include <linux/uuid.h> 18 19 #ifndef _LINUX 20 #define _LINUX 21 #endif 22 #include <acpi/acpi.h> 23 24 #ifdef CONFIG_ACPI 25 26 #include <linux/list.h> 27 #include <linux/mod_devicetable.h> 28 #include <linux/dynamic_debug.h> 29 #include <linux/module.h> 30 #include <linux/mutex.h> 31 32 #include <acpi/acpi_bus.h> 33 #include <acpi/acpi_drivers.h> 34 #include <acpi/acpi_numa.h> 35 #include <acpi/acpi_io.h> 36 #include <asm/acpi.h> 37 38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 39 { 40 return adev ? adev->handle : NULL; 41 } 42 43 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 44 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 45 acpi_fwnode_handle(adev) : NULL) 46 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 47 #define ACPI_HANDLE_FWNODE(fwnode) \ 48 acpi_device_handle(to_acpi_device_node(fwnode)) 49 50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 51 { 52 struct fwnode_handle *fwnode; 53 54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 55 if (!fwnode) 56 return NULL; 57 58 fwnode->ops = &acpi_static_fwnode_ops; 59 60 return fwnode; 61 } 62 63 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 64 { 65 if (WARN_ON(!is_acpi_static_node(fwnode))) 66 return; 67 68 kfree(fwnode); 69 } 70 71 /** 72 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 73 * the PCI-defined class-code information 74 * 75 * @_cls : the class, subclass, prog-if triple for this device 76 * @_msk : the class mask for this device 77 * 78 * This macro is used to create a struct acpi_device_id that matches a 79 * specific PCI class. The .id and .driver_data fields will be left 80 * initialized with the default value. 81 */ 82 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 83 84 static inline bool has_acpi_companion(struct device *dev) 85 { 86 return is_acpi_device_node(dev->fwnode); 87 } 88 89 static inline void acpi_preset_companion(struct device *dev, 90 struct acpi_device *parent, u64 addr) 91 { 92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 93 } 94 95 static inline const char *acpi_dev_name(struct acpi_device *adev) 96 { 97 return dev_name(&adev->dev); 98 } 99 100 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 101 102 enum acpi_irq_model_id { 103 ACPI_IRQ_MODEL_PIC = 0, 104 ACPI_IRQ_MODEL_IOAPIC, 105 ACPI_IRQ_MODEL_IOSAPIC, 106 ACPI_IRQ_MODEL_PLATFORM, 107 ACPI_IRQ_MODEL_GIC, 108 ACPI_IRQ_MODEL_COUNT 109 }; 110 111 extern enum acpi_irq_model_id acpi_irq_model; 112 113 enum acpi_interrupt_id { 114 ACPI_INTERRUPT_PMI = 1, 115 ACPI_INTERRUPT_INIT, 116 ACPI_INTERRUPT_CPEI, 117 ACPI_INTERRUPT_COUNT 118 }; 119 120 #define ACPI_SPACE_MEM 0 121 122 enum acpi_address_range_id { 123 ACPI_ADDRESS_RANGE_MEMORY = 1, 124 ACPI_ADDRESS_RANGE_RESERVED = 2, 125 ACPI_ADDRESS_RANGE_ACPI = 3, 126 ACPI_ADDRESS_RANGE_NVS = 4, 127 ACPI_ADDRESS_RANGE_COUNT 128 }; 129 130 131 /* Table Handlers */ 132 union acpi_subtable_headers { 133 struct acpi_subtable_header common; 134 struct acpi_hmat_structure hmat; 135 }; 136 137 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 138 139 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 140 const unsigned long end); 141 142 /* Debugger support */ 143 144 struct acpi_debugger_ops { 145 int (*create_thread)(acpi_osd_exec_callback function, void *context); 146 ssize_t (*write_log)(const char *msg); 147 ssize_t (*read_cmd)(char *buffer, size_t length); 148 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 149 int (*notify_command_complete)(void); 150 }; 151 152 struct acpi_debugger { 153 const struct acpi_debugger_ops *ops; 154 struct module *owner; 155 struct mutex lock; 156 }; 157 158 #ifdef CONFIG_ACPI_DEBUGGER 159 int __init acpi_debugger_init(void); 160 int acpi_register_debugger(struct module *owner, 161 const struct acpi_debugger_ops *ops); 162 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 163 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 164 ssize_t acpi_debugger_write_log(const char *msg); 165 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 166 int acpi_debugger_wait_command_ready(void); 167 int acpi_debugger_notify_command_complete(void); 168 #else 169 static inline int acpi_debugger_init(void) 170 { 171 return -ENODEV; 172 } 173 174 static inline int acpi_register_debugger(struct module *owner, 175 const struct acpi_debugger_ops *ops) 176 { 177 return -ENODEV; 178 } 179 180 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 181 { 182 } 183 184 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 185 void *context) 186 { 187 return -ENODEV; 188 } 189 190 static inline int acpi_debugger_write_log(const char *msg) 191 { 192 return -ENODEV; 193 } 194 195 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 196 { 197 return -ENODEV; 198 } 199 200 static inline int acpi_debugger_wait_command_ready(void) 201 { 202 return -ENODEV; 203 } 204 205 static inline int acpi_debugger_notify_command_complete(void) 206 { 207 return -ENODEV; 208 } 209 #endif 210 211 #define BAD_MADT_ENTRY(entry, end) ( \ 212 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 213 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 214 215 struct acpi_subtable_proc { 216 int id; 217 acpi_tbl_entry_handler handler; 218 int count; 219 }; 220 221 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 222 void __acpi_unmap_table(void __iomem *map, unsigned long size); 223 int early_acpi_boot_init(void); 224 int acpi_boot_init (void); 225 void acpi_boot_table_init (void); 226 int acpi_mps_check (void); 227 int acpi_numa_init (void); 228 229 int acpi_table_init (void); 230 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 231 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 232 int entry_id, 233 acpi_tbl_entry_handler handler, 234 unsigned int max_entries); 235 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 236 struct acpi_subtable_proc *proc, int proc_num, 237 unsigned int max_entries); 238 int acpi_table_parse_madt(enum acpi_madt_type id, 239 acpi_tbl_entry_handler handler, 240 unsigned int max_entries); 241 int acpi_parse_mcfg (struct acpi_table_header *header); 242 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 243 244 /* the following numa functions are architecture-dependent */ 245 void acpi_numa_slit_init (struct acpi_table_slit *slit); 246 247 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 248 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 249 #else 250 static inline void 251 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 252 #endif 253 254 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 255 256 #ifdef CONFIG_ARM64 257 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 258 #else 259 static inline void 260 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 261 #endif 262 263 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 264 265 #ifndef PHYS_CPUID_INVALID 266 typedef u32 phys_cpuid_t; 267 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 268 #endif 269 270 static inline bool invalid_logical_cpuid(u32 cpuid) 271 { 272 return (int)cpuid < 0; 273 } 274 275 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 276 { 277 return phys_id == PHYS_CPUID_INVALID; 278 } 279 280 /* Validate the processor object's proc_id */ 281 bool acpi_duplicate_processor_id(int proc_id); 282 /* Processor _CTS control */ 283 struct acpi_processor_power; 284 285 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 286 bool acpi_processor_claim_cst_control(void); 287 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 288 struct acpi_processor_power *info); 289 #else 290 static inline bool acpi_processor_claim_cst_control(void) { return false; } 291 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 292 struct acpi_processor_power *info) 293 { 294 return -ENODEV; 295 } 296 #endif 297 298 #ifdef CONFIG_ACPI_HOTPLUG_CPU 299 /* Arch dependent functions for cpu hotplug support */ 300 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 301 int *pcpu); 302 int acpi_unmap_cpu(int cpu); 303 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 304 305 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 306 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 307 #endif 308 309 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 310 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 311 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 312 void acpi_irq_stats_init(void); 313 extern u32 acpi_irq_handled; 314 extern u32 acpi_irq_not_handled; 315 extern unsigned int acpi_sci_irq; 316 extern bool acpi_no_s5; 317 #define INVALID_ACPI_IRQ ((unsigned)-1) 318 static inline bool acpi_sci_irq_valid(void) 319 { 320 return acpi_sci_irq != INVALID_ACPI_IRQ; 321 } 322 323 extern int sbf_port; 324 extern unsigned long acpi_realmode_flags; 325 326 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 327 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 328 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 329 330 void acpi_set_irq_model(enum acpi_irq_model_id model, 331 struct fwnode_handle *fwnode); 332 333 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 334 unsigned int size, 335 struct fwnode_handle *fwnode, 336 const struct irq_domain_ops *ops, 337 void *host_data); 338 339 #ifdef CONFIG_X86_IO_APIC 340 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 341 #else 342 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 343 { 344 return -1; 345 } 346 #endif 347 /* 348 * This function undoes the effect of one call to acpi_register_gsi(). 349 * If this matches the last registration, any IRQ resources for gsi 350 * are freed. 351 */ 352 void acpi_unregister_gsi (u32 gsi); 353 354 struct pci_dev; 355 356 int acpi_pci_irq_enable (struct pci_dev *dev); 357 void acpi_penalize_isa_irq(int irq, int active); 358 bool acpi_isa_irq_available(int irq); 359 #ifdef CONFIG_PCI 360 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 361 #else 362 static inline void acpi_penalize_sci_irq(int irq, int trigger, 363 int polarity) 364 { 365 } 366 #endif 367 void acpi_pci_irq_disable (struct pci_dev *dev); 368 369 extern int ec_read(u8 addr, u8 *val); 370 extern int ec_write(u8 addr, u8 val); 371 extern int ec_transaction(u8 command, 372 const u8 *wdata, unsigned wdata_len, 373 u8 *rdata, unsigned rdata_len); 374 extern acpi_handle ec_get_handle(void); 375 376 extern bool acpi_is_pnp_device(struct acpi_device *); 377 378 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 379 380 typedef void (*wmi_notify_handler) (u32 value, void *context); 381 382 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 383 u32 method_id, 384 const struct acpi_buffer *in, 385 struct acpi_buffer *out); 386 extern acpi_status wmi_query_block(const char *guid, u8 instance, 387 struct acpi_buffer *out); 388 extern acpi_status wmi_set_block(const char *guid, u8 instance, 389 const struct acpi_buffer *in); 390 extern acpi_status wmi_install_notify_handler(const char *guid, 391 wmi_notify_handler handler, void *data); 392 extern acpi_status wmi_remove_notify_handler(const char *guid); 393 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 394 extern bool wmi_has_guid(const char *guid); 395 extern char *wmi_get_acpi_device_uid(const char *guid); 396 397 #endif /* CONFIG_ACPI_WMI */ 398 399 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 400 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 401 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 402 #define ACPI_VIDEO_BACKLIGHT 0x0008 403 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 404 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 405 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 406 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 407 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 408 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 409 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 410 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 411 412 extern char acpi_video_backlight_string[]; 413 extern long acpi_is_video_device(acpi_handle handle); 414 extern int acpi_blacklisted(void); 415 extern void acpi_osi_setup(char *str); 416 extern bool acpi_osi_is_win8(void); 417 418 #ifdef CONFIG_ACPI_NUMA 419 int acpi_map_pxm_to_online_node(int pxm); 420 int acpi_map_pxm_to_node(int pxm); 421 int acpi_get_node(acpi_handle handle); 422 #else 423 static inline int acpi_map_pxm_to_online_node(int pxm) 424 { 425 return 0; 426 } 427 static inline int acpi_map_pxm_to_node(int pxm) 428 { 429 return 0; 430 } 431 static inline int acpi_get_node(acpi_handle handle) 432 { 433 return 0; 434 } 435 #endif 436 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 437 438 extern int pnpacpi_disabled; 439 440 #define PXM_INVAL (-1) 441 442 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 443 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 444 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 445 struct resource_win *win); 446 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 447 struct resource_win *win); 448 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 449 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 450 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 451 struct resource *res); 452 453 void acpi_dev_free_resource_list(struct list_head *list); 454 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 455 int (*preproc)(struct acpi_resource *, void *), 456 void *preproc_data); 457 int acpi_dev_get_dma_resources(struct acpi_device *adev, 458 struct list_head *list); 459 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 460 unsigned long types); 461 462 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 463 void *arg) 464 { 465 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 466 } 467 468 struct acpi_device *acpi_resource_consumer(struct resource *res); 469 470 int acpi_check_resource_conflict(const struct resource *res); 471 472 int acpi_check_region(resource_size_t start, resource_size_t n, 473 const char *name); 474 475 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 476 u32 level); 477 478 int acpi_resources_are_enforced(void); 479 480 #ifdef CONFIG_HIBERNATION 481 void __init acpi_no_s4_hw_signature(void); 482 #endif 483 484 #ifdef CONFIG_PM_SLEEP 485 void __init acpi_old_suspend_ordering(void); 486 void __init acpi_nvs_nosave(void); 487 void __init acpi_nvs_nosave_s3(void); 488 void __init acpi_sleep_no_blacklist(void); 489 #endif /* CONFIG_PM_SLEEP */ 490 491 struct acpi_osc_context { 492 char *uuid_str; /* UUID string */ 493 int rev; 494 struct acpi_buffer cap; /* list of DWORD capabilities */ 495 struct acpi_buffer ret; /* free by caller if success */ 496 }; 497 498 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 499 500 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 501 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 502 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 503 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 504 505 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 506 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 507 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 508 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 509 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 510 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 511 512 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 513 #define OSC_SB_PAD_SUPPORT 0x00000001 514 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 515 #define OSC_SB_PR3_SUPPORT 0x00000004 516 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 517 #define OSC_SB_APEI_SUPPORT 0x00000010 518 #define OSC_SB_CPC_SUPPORT 0x00000020 519 #define OSC_SB_CPCV2_SUPPORT 0x00000040 520 #define OSC_SB_PCLPI_SUPPORT 0x00000080 521 #define OSC_SB_OSLPI_SUPPORT 0x00000100 522 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 523 524 extern bool osc_sb_apei_support_acked; 525 extern bool osc_pc_lpi_support_confirmed; 526 527 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 528 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 529 #define OSC_PCI_ASPM_SUPPORT 0x00000002 530 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 531 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 532 #define OSC_PCI_MSI_SUPPORT 0x00000010 533 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 534 #define OSC_PCI_SUPPORT_MASKS 0x0000011f 535 536 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 537 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 538 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 539 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 540 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 541 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 542 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 543 #define OSC_PCI_CONTROL_MASKS 0x0000003f 544 545 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 546 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 547 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 548 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 549 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 550 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 551 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 552 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 553 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 554 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 555 556 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 557 u32 *mask, u32 req); 558 559 /* Enable _OST when all relevant hotplug operations are enabled */ 560 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 561 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 562 defined(CONFIG_ACPI_CONTAINER) 563 #define ACPI_HOTPLUG_OST 564 #endif 565 566 /* _OST Source Event Code (OSPM Action) */ 567 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 568 #define ACPI_OST_EC_OSPM_EJECT 0x103 569 #define ACPI_OST_EC_OSPM_INSERTION 0x200 570 571 /* _OST General Processing Status Code */ 572 #define ACPI_OST_SC_SUCCESS 0x0 573 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 574 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 575 576 /* _OST OS Shutdown Processing (0x100) Status Code */ 577 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 578 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 579 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 580 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 581 582 /* _OST Ejection Request (0x3, 0x103) Status Code */ 583 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 584 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 585 #define ACPI_OST_SC_DEVICE_BUSY 0x82 586 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 587 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 588 589 /* _OST Insertion Request (0x200) Status Code */ 590 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 591 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 592 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 593 594 enum acpi_predicate { 595 all_versions, 596 less_than_or_equal, 597 equal, 598 greater_than_or_equal, 599 }; 600 601 /* Table must be terminted by a NULL entry */ 602 struct acpi_platform_list { 603 char oem_id[ACPI_OEM_ID_SIZE+1]; 604 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 605 u32 oem_revision; 606 char *table; 607 enum acpi_predicate pred; 608 char *reason; 609 u32 data; 610 }; 611 int acpi_match_platform_list(const struct acpi_platform_list *plat); 612 613 extern void acpi_early_init(void); 614 extern void acpi_subsystem_init(void); 615 extern void arch_post_acpi_subsys_init(void); 616 617 extern int acpi_nvs_register(__u64 start, __u64 size); 618 619 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 620 void *data); 621 622 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 623 const struct device *dev); 624 625 const void *acpi_device_get_match_data(const struct device *dev); 626 extern bool acpi_driver_match_device(struct device *dev, 627 const struct device_driver *drv); 628 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 629 int acpi_device_modalias(struct device *, char *, int); 630 void acpi_walk_dep_device_list(acpi_handle handle); 631 632 struct platform_device *acpi_create_platform_device(struct acpi_device *, 633 struct property_entry *); 634 #define ACPI_PTR(_ptr) (_ptr) 635 636 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 637 { 638 adev->flags.visited = true; 639 } 640 641 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 642 { 643 adev->flags.visited = false; 644 } 645 646 enum acpi_reconfig_event { 647 ACPI_RECONFIG_DEVICE_ADD = 0, 648 ACPI_RECONFIG_DEVICE_REMOVE, 649 }; 650 651 int acpi_reconfig_notifier_register(struct notifier_block *nb); 652 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 653 654 #ifdef CONFIG_ACPI_GTDT 655 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 656 int acpi_gtdt_map_ppi(int type); 657 bool acpi_gtdt_c3stop(int type); 658 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 659 #endif 660 661 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 662 static inline void acpi_arch_set_root_pointer(u64 addr) 663 { 664 } 665 #endif 666 667 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 668 static inline u64 acpi_arch_get_root_pointer(void) 669 { 670 return 0; 671 } 672 #endif 673 674 #else /* !CONFIG_ACPI */ 675 676 #define acpi_disabled 1 677 678 #define ACPI_COMPANION(dev) (NULL) 679 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 680 #define ACPI_HANDLE(dev) (NULL) 681 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 682 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 683 684 struct fwnode_handle; 685 686 static inline bool acpi_dev_found(const char *hid) 687 { 688 return false; 689 } 690 691 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 692 { 693 return false; 694 } 695 696 struct acpi_device; 697 698 static inline bool 699 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 700 { 701 return false; 702 } 703 704 static inline struct acpi_device * 705 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 706 { 707 return NULL; 708 } 709 710 static inline void acpi_dev_put(struct acpi_device *adev) {} 711 712 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 713 { 714 return false; 715 } 716 717 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 718 { 719 return false; 720 } 721 722 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 723 { 724 return NULL; 725 } 726 727 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 728 { 729 return false; 730 } 731 732 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 733 { 734 return NULL; 735 } 736 737 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 738 const char *name) 739 { 740 return false; 741 } 742 743 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 744 { 745 return NULL; 746 } 747 748 static inline bool has_acpi_companion(struct device *dev) 749 { 750 return false; 751 } 752 753 static inline void acpi_preset_companion(struct device *dev, 754 struct acpi_device *parent, u64 addr) 755 { 756 } 757 758 static inline const char *acpi_dev_name(struct acpi_device *adev) 759 { 760 return NULL; 761 } 762 763 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 764 { 765 return NULL; 766 } 767 768 static inline void acpi_early_init(void) { } 769 static inline void acpi_subsystem_init(void) { } 770 771 static inline int early_acpi_boot_init(void) 772 { 773 return 0; 774 } 775 static inline int acpi_boot_init(void) 776 { 777 return 0; 778 } 779 780 static inline void acpi_boot_table_init(void) 781 { 782 return; 783 } 784 785 static inline int acpi_mps_check(void) 786 { 787 return 0; 788 } 789 790 static inline int acpi_check_resource_conflict(struct resource *res) 791 { 792 return 0; 793 } 794 795 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 796 const char *name) 797 { 798 return 0; 799 } 800 801 struct acpi_table_header; 802 static inline int acpi_table_parse(char *id, 803 int (*handler)(struct acpi_table_header *)) 804 { 805 return -ENODEV; 806 } 807 808 static inline int acpi_nvs_register(__u64 start, __u64 size) 809 { 810 return 0; 811 } 812 813 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 814 void *data) 815 { 816 return 0; 817 } 818 819 struct acpi_device_id; 820 821 static inline const struct acpi_device_id *acpi_match_device( 822 const struct acpi_device_id *ids, const struct device *dev) 823 { 824 return NULL; 825 } 826 827 static inline const void *acpi_device_get_match_data(const struct device *dev) 828 { 829 return NULL; 830 } 831 832 static inline bool acpi_driver_match_device(struct device *dev, 833 const struct device_driver *drv) 834 { 835 return false; 836 } 837 838 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 839 const guid_t *guid, 840 int rev, int func, 841 union acpi_object *argv4) 842 { 843 return NULL; 844 } 845 846 static inline int acpi_device_uevent_modalias(struct device *dev, 847 struct kobj_uevent_env *env) 848 { 849 return -ENODEV; 850 } 851 852 static inline int acpi_device_modalias(struct device *dev, 853 char *buf, int size) 854 { 855 return -ENODEV; 856 } 857 858 static inline bool acpi_dma_supported(struct acpi_device *adev) 859 { 860 return false; 861 } 862 863 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 864 { 865 return DEV_DMA_NOT_SUPPORTED; 866 } 867 868 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 869 u64 *offset, u64 *size) 870 { 871 return -ENODEV; 872 } 873 874 static inline int acpi_dma_configure(struct device *dev, 875 enum dev_dma_attr attr) 876 { 877 return 0; 878 } 879 880 #define ACPI_PTR(_ptr) (NULL) 881 882 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 883 { 884 } 885 886 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 887 { 888 } 889 890 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 891 { 892 return -EINVAL; 893 } 894 895 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 896 { 897 return -EINVAL; 898 } 899 900 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 901 { 902 return NULL; 903 } 904 905 #endif /* !CONFIG_ACPI */ 906 907 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 908 int acpi_ioapic_add(acpi_handle root); 909 #else 910 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 911 #endif 912 913 #ifdef CONFIG_ACPI 914 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 915 u32 pm1a_ctrl, u32 pm1b_ctrl)); 916 917 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 918 u32 pm1a_control, u32 pm1b_control); 919 920 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 921 u32 val_a, u32 val_b)); 922 923 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 924 u32 val_a, u32 val_b); 925 926 #ifdef CONFIG_X86 927 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 928 #else 929 static inline void arch_reserve_mem_area(acpi_physical_address addr, 930 size_t size) 931 { 932 } 933 #endif /* CONFIG_X86 */ 934 #else 935 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 936 #endif 937 938 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 939 int acpi_dev_suspend(struct device *dev, bool wakeup); 940 int acpi_dev_resume(struct device *dev); 941 int acpi_subsys_runtime_suspend(struct device *dev); 942 int acpi_subsys_runtime_resume(struct device *dev); 943 int acpi_dev_pm_attach(struct device *dev, bool power_on); 944 #else 945 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 946 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 947 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 948 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 949 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 950 { 951 return 0; 952 } 953 #endif 954 955 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 956 int acpi_subsys_prepare(struct device *dev); 957 void acpi_subsys_complete(struct device *dev); 958 int acpi_subsys_suspend_late(struct device *dev); 959 int acpi_subsys_suspend_noirq(struct device *dev); 960 int acpi_subsys_suspend(struct device *dev); 961 int acpi_subsys_freeze(struct device *dev); 962 int acpi_subsys_poweroff(struct device *dev); 963 void acpi_ec_mark_gpe_for_wake(void); 964 void acpi_ec_set_gpe_wake_mask(u8 action); 965 #else 966 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 967 static inline void acpi_subsys_complete(struct device *dev) {} 968 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 969 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 970 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 971 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 972 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 973 static inline void acpi_ec_mark_gpe_for_wake(void) {} 974 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 975 #endif 976 977 #ifdef CONFIG_ACPI 978 __printf(3, 4) 979 void acpi_handle_printk(const char *level, acpi_handle handle, 980 const char *fmt, ...); 981 #else /* !CONFIG_ACPI */ 982 static inline __printf(3, 4) void 983 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 984 #endif /* !CONFIG_ACPI */ 985 986 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 987 __printf(3, 4) 988 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 989 #endif 990 991 /* 992 * acpi_handle_<level>: Print message with ACPI prefix and object path 993 * 994 * These interfaces acquire the global namespace mutex to obtain an object 995 * path. In interrupt context, it shows the object path as <n/a>. 996 */ 997 #define acpi_handle_emerg(handle, fmt, ...) \ 998 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 999 #define acpi_handle_alert(handle, fmt, ...) \ 1000 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1001 #define acpi_handle_crit(handle, fmt, ...) \ 1002 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1003 #define acpi_handle_err(handle, fmt, ...) \ 1004 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1005 #define acpi_handle_warn(handle, fmt, ...) \ 1006 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1007 #define acpi_handle_notice(handle, fmt, ...) \ 1008 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1009 #define acpi_handle_info(handle, fmt, ...) \ 1010 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1011 1012 #if defined(DEBUG) 1013 #define acpi_handle_debug(handle, fmt, ...) \ 1014 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1015 #else 1016 #if defined(CONFIG_DYNAMIC_DEBUG) 1017 #define acpi_handle_debug(handle, fmt, ...) \ 1018 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1019 handle, pr_fmt(fmt), ##__VA_ARGS__) 1020 #else 1021 #define acpi_handle_debug(handle, fmt, ...) \ 1022 ({ \ 1023 if (0) \ 1024 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1025 0; \ 1026 }) 1027 #endif 1028 #endif 1029 1030 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1031 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1032 struct acpi_resource_gpio **agpio); 1033 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1034 #else 1035 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1036 struct acpi_resource_gpio **agpio) 1037 { 1038 return false; 1039 } 1040 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1041 { 1042 return -ENXIO; 1043 } 1044 #endif 1045 1046 /* Device properties */ 1047 1048 #ifdef CONFIG_ACPI 1049 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1050 acpi_object_type type, const union acpi_object **obj); 1051 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1052 const char *name, size_t index, size_t num_args, 1053 struct fwnode_reference_args *args); 1054 1055 static inline int acpi_node_get_property_reference( 1056 const struct fwnode_handle *fwnode, 1057 const char *name, size_t index, 1058 struct fwnode_reference_args *args) 1059 { 1060 return __acpi_node_get_property_reference(fwnode, name, index, 1061 NR_FWNODE_REFERENCE_ARGS, args); 1062 } 1063 1064 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1065 { 1066 return !list_empty(&adev->data.properties); 1067 } 1068 1069 struct acpi_device_properties * 1070 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1071 const union acpi_object *properties); 1072 1073 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1074 void **valptr); 1075 int acpi_dev_prop_read_single(struct acpi_device *adev, 1076 const char *propname, enum dev_prop_type proptype, 1077 void *val); 1078 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1079 const char *propname, enum dev_prop_type proptype, 1080 void *val, size_t nval); 1081 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1082 enum dev_prop_type proptype, void *val, size_t nval); 1083 1084 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1085 struct fwnode_handle *child); 1086 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1087 1088 struct acpi_probe_entry; 1089 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1090 struct acpi_probe_entry *); 1091 1092 #define ACPI_TABLE_ID_LEN 5 1093 1094 /** 1095 * struct acpi_probe_entry - boot-time probing entry 1096 * @id: ACPI table name 1097 * @type: Optional subtable type to match 1098 * (if @id contains subtables) 1099 * @subtable_valid: Optional callback to check the validity of 1100 * the subtable 1101 * @probe_table: Callback to the driver being probed when table 1102 * match is successful 1103 * @probe_subtbl: Callback to the driver being probed when table and 1104 * subtable match (and optional callback is successful) 1105 * @driver_data: Sideband data provided back to the driver 1106 */ 1107 struct acpi_probe_entry { 1108 __u8 id[ACPI_TABLE_ID_LEN]; 1109 __u8 type; 1110 acpi_probe_entry_validate_subtbl subtable_valid; 1111 union { 1112 acpi_tbl_table_handler probe_table; 1113 acpi_tbl_entry_handler probe_subtbl; 1114 }; 1115 kernel_ulong_t driver_data; 1116 }; 1117 1118 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1119 static const struct acpi_probe_entry __acpi_probe_##name \ 1120 __used __section(__##table##_acpi_probe_table) \ 1121 = { \ 1122 .id = table_id, \ 1123 .type = subtable, \ 1124 .subtable_valid = valid, \ 1125 .probe_table = (acpi_tbl_table_handler)fn, \ 1126 .driver_data = data, \ 1127 } 1128 1129 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1130 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1131 1132 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1133 1134 #define acpi_probe_device_table(t) \ 1135 ({ \ 1136 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1137 ACPI_PROBE_TABLE_END(t); \ 1138 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1139 (&ACPI_PROBE_TABLE_END(t) - \ 1140 &ACPI_PROBE_TABLE(t))); \ 1141 }) 1142 #else 1143 static inline int acpi_dev_get_property(struct acpi_device *adev, 1144 const char *name, acpi_object_type type, 1145 const union acpi_object **obj) 1146 { 1147 return -ENXIO; 1148 } 1149 1150 static inline int 1151 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1152 const char *name, size_t index, size_t num_args, 1153 struct fwnode_reference_args *args) 1154 { 1155 return -ENXIO; 1156 } 1157 1158 static inline int 1159 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1160 const char *name, size_t index, 1161 struct fwnode_reference_args *args) 1162 { 1163 return -ENXIO; 1164 } 1165 1166 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1167 const char *propname, 1168 void **valptr) 1169 { 1170 return -ENXIO; 1171 } 1172 1173 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1174 const char *propname, 1175 void **valptr) 1176 { 1177 return -ENXIO; 1178 } 1179 1180 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1181 const char *propname, 1182 enum dev_prop_type proptype, 1183 void *val) 1184 { 1185 return -ENXIO; 1186 } 1187 1188 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1189 const char *propname, 1190 enum dev_prop_type proptype, 1191 void *val, size_t nval) 1192 { 1193 return -ENXIO; 1194 } 1195 1196 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1197 const char *propname, 1198 enum dev_prop_type proptype, 1199 void *val, size_t nval) 1200 { 1201 return -ENXIO; 1202 } 1203 1204 static inline struct fwnode_handle * 1205 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1206 struct fwnode_handle *child) 1207 { 1208 return NULL; 1209 } 1210 1211 static inline struct fwnode_handle * 1212 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1213 { 1214 return NULL; 1215 } 1216 1217 static inline struct fwnode_handle * 1218 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1219 struct fwnode_handle *prev) 1220 { 1221 return ERR_PTR(-ENXIO); 1222 } 1223 1224 static inline int 1225 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1226 struct fwnode_handle **remote, 1227 struct fwnode_handle **port, 1228 struct fwnode_handle **endpoint) 1229 { 1230 return -ENXIO; 1231 } 1232 1233 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1234 static const void * __acpi_table_##name[] \ 1235 __attribute__((unused)) \ 1236 = { (void *) table_id, \ 1237 (void *) subtable, \ 1238 (void *) valid, \ 1239 (void *) fn, \ 1240 (void *) data } 1241 1242 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1243 #endif 1244 1245 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1246 void acpi_table_upgrade(void); 1247 #else 1248 static inline void acpi_table_upgrade(void) { } 1249 #endif 1250 1251 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1252 extern bool acpi_has_watchdog(void); 1253 #else 1254 static inline bool acpi_has_watchdog(void) { return false; } 1255 #endif 1256 1257 #ifdef CONFIG_ACPI_SPCR_TABLE 1258 extern bool qdf2400_e44_present; 1259 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1260 #else 1261 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1262 { 1263 return 0; 1264 } 1265 #endif 1266 1267 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1268 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1269 #else 1270 static inline 1271 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1272 { 1273 return -EINVAL; 1274 } 1275 #endif 1276 1277 #ifdef CONFIG_ACPI_LPIT 1278 int lpit_read_residency_count_address(u64 *address); 1279 #else 1280 static inline int lpit_read_residency_count_address(u64 *address) 1281 { 1282 return -EINVAL; 1283 } 1284 #endif 1285 1286 #ifdef CONFIG_ACPI_PPTT 1287 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1288 int find_acpi_cpu_topology(unsigned int cpu, int level); 1289 int find_acpi_cpu_topology_package(unsigned int cpu); 1290 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1291 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1292 #else 1293 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1294 { 1295 return -EINVAL; 1296 } 1297 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1298 { 1299 return -EINVAL; 1300 } 1301 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1302 { 1303 return -EINVAL; 1304 } 1305 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1306 { 1307 return -EINVAL; 1308 } 1309 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1310 { 1311 return -EINVAL; 1312 } 1313 #endif 1314 1315 #ifdef CONFIG_ACPI 1316 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1317 #else 1318 static inline int 1319 acpi_platform_notify(struct device *dev, enum kobject_action action) 1320 { 1321 return 0; 1322 } 1323 #endif 1324 1325 #endif /*_LINUX_ACPI_H*/ 1326