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_node(int pxm); 420 int acpi_get_node(acpi_handle handle); 421 422 /** 423 * acpi_map_pxm_to_online_node - Map proximity ID to online node 424 * @pxm: ACPI proximity ID 425 * 426 * This is similar to acpi_map_pxm_to_node(), but always returns an online 427 * node. When the mapped node from a given proximity ID is offline, it 428 * looks up the node distance table and returns the nearest online node. 429 * 430 * ACPI device drivers, which are called after the NUMA initialization has 431 * completed in the kernel, can call this interface to obtain their device 432 * NUMA topology from ACPI tables. Such drivers do not have to deal with 433 * offline nodes. A node may be offline when a device proximity ID is 434 * unique, SRAT memory entry does not exist, or NUMA is disabled, ex. 435 * "numa=off" on x86. 436 */ 437 static inline int acpi_map_pxm_to_online_node(int pxm) 438 { 439 int node = acpi_map_pxm_to_node(pxm); 440 441 return numa_map_to_online_node(node); 442 } 443 #else 444 static inline int acpi_map_pxm_to_online_node(int pxm) 445 { 446 return 0; 447 } 448 static inline int acpi_map_pxm_to_node(int pxm) 449 { 450 return 0; 451 } 452 static inline int acpi_get_node(acpi_handle handle) 453 { 454 return 0; 455 } 456 #endif 457 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 458 459 extern int pnpacpi_disabled; 460 461 #define PXM_INVAL (-1) 462 463 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 464 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 465 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 466 struct resource_win *win); 467 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 468 struct resource_win *win); 469 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 470 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 471 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 472 struct resource *res); 473 474 void acpi_dev_free_resource_list(struct list_head *list); 475 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 476 int (*preproc)(struct acpi_resource *, void *), 477 void *preproc_data); 478 int acpi_dev_get_dma_resources(struct acpi_device *adev, 479 struct list_head *list); 480 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 481 unsigned long types); 482 483 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 484 void *arg) 485 { 486 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 487 } 488 489 struct acpi_device *acpi_resource_consumer(struct resource *res); 490 491 int acpi_check_resource_conflict(const struct resource *res); 492 493 int acpi_check_region(resource_size_t start, resource_size_t n, 494 const char *name); 495 496 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 497 u32 level); 498 499 int acpi_resources_are_enforced(void); 500 501 #ifdef CONFIG_HIBERNATION 502 void __init acpi_no_s4_hw_signature(void); 503 #endif 504 505 #ifdef CONFIG_PM_SLEEP 506 void __init acpi_old_suspend_ordering(void); 507 void __init acpi_nvs_nosave(void); 508 void __init acpi_nvs_nosave_s3(void); 509 void __init acpi_sleep_no_blacklist(void); 510 #endif /* CONFIG_PM_SLEEP */ 511 512 int acpi_register_wakeup_handler( 513 int wake_irq, bool (*wakeup)(void *context), void *context); 514 void acpi_unregister_wakeup_handler( 515 bool (*wakeup)(void *context), void *context); 516 517 struct acpi_osc_context { 518 char *uuid_str; /* UUID string */ 519 int rev; 520 struct acpi_buffer cap; /* list of DWORD capabilities */ 521 struct acpi_buffer ret; /* free by caller if success */ 522 }; 523 524 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 525 526 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 527 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 528 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 529 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 530 531 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 532 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 533 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 534 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 535 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 536 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 537 538 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 539 #define OSC_SB_PAD_SUPPORT 0x00000001 540 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 541 #define OSC_SB_PR3_SUPPORT 0x00000004 542 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 543 #define OSC_SB_APEI_SUPPORT 0x00000010 544 #define OSC_SB_CPC_SUPPORT 0x00000020 545 #define OSC_SB_CPCV2_SUPPORT 0x00000040 546 #define OSC_SB_PCLPI_SUPPORT 0x00000080 547 #define OSC_SB_OSLPI_SUPPORT 0x00000100 548 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 549 550 extern bool osc_sb_apei_support_acked; 551 extern bool osc_pc_lpi_support_confirmed; 552 553 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 554 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 555 #define OSC_PCI_ASPM_SUPPORT 0x00000002 556 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 557 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 558 #define OSC_PCI_MSI_SUPPORT 0x00000010 559 #define OSC_PCI_EDR_SUPPORT 0x00000080 560 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 561 #define OSC_PCI_SUPPORT_MASKS 0x0000019f 562 563 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 564 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 565 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 566 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 567 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 568 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 569 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 570 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 571 #define OSC_PCI_CONTROL_MASKS 0x000000bf 572 573 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 574 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 575 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 576 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 577 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 578 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 579 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 580 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 581 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 582 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 583 584 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 585 u32 *mask, u32 req); 586 587 /* Enable _OST when all relevant hotplug operations are enabled */ 588 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 589 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 590 defined(CONFIG_ACPI_CONTAINER) 591 #define ACPI_HOTPLUG_OST 592 #endif 593 594 /* _OST Source Event Code (OSPM Action) */ 595 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 596 #define ACPI_OST_EC_OSPM_EJECT 0x103 597 #define ACPI_OST_EC_OSPM_INSERTION 0x200 598 599 /* _OST General Processing Status Code */ 600 #define ACPI_OST_SC_SUCCESS 0x0 601 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 602 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 603 604 /* _OST OS Shutdown Processing (0x100) Status Code */ 605 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 606 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 607 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 608 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 609 610 /* _OST Ejection Request (0x3, 0x103) Status Code */ 611 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 612 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 613 #define ACPI_OST_SC_DEVICE_BUSY 0x82 614 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 615 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 616 617 /* _OST Insertion Request (0x200) Status Code */ 618 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 619 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 620 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 621 622 enum acpi_predicate { 623 all_versions, 624 less_than_or_equal, 625 equal, 626 greater_than_or_equal, 627 }; 628 629 /* Table must be terminted by a NULL entry */ 630 struct acpi_platform_list { 631 char oem_id[ACPI_OEM_ID_SIZE+1]; 632 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 633 u32 oem_revision; 634 char *table; 635 enum acpi_predicate pred; 636 char *reason; 637 u32 data; 638 }; 639 int acpi_match_platform_list(const struct acpi_platform_list *plat); 640 641 extern void acpi_early_init(void); 642 extern void acpi_subsystem_init(void); 643 extern void arch_post_acpi_subsys_init(void); 644 645 extern int acpi_nvs_register(__u64 start, __u64 size); 646 647 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 648 void *data); 649 650 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 651 const struct device *dev); 652 653 const void *acpi_device_get_match_data(const struct device *dev); 654 extern bool acpi_driver_match_device(struct device *dev, 655 const struct device_driver *drv); 656 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 657 int acpi_device_modalias(struct device *, char *, int); 658 void acpi_walk_dep_device_list(acpi_handle handle); 659 660 struct platform_device *acpi_create_platform_device(struct acpi_device *, 661 struct property_entry *); 662 #define ACPI_PTR(_ptr) (_ptr) 663 664 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 665 { 666 adev->flags.visited = true; 667 } 668 669 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 670 { 671 adev->flags.visited = false; 672 } 673 674 enum acpi_reconfig_event { 675 ACPI_RECONFIG_DEVICE_ADD = 0, 676 ACPI_RECONFIG_DEVICE_REMOVE, 677 }; 678 679 int acpi_reconfig_notifier_register(struct notifier_block *nb); 680 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 681 682 #ifdef CONFIG_ACPI_GTDT 683 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 684 int acpi_gtdt_map_ppi(int type); 685 bool acpi_gtdt_c3stop(int type); 686 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 687 #endif 688 689 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 690 static inline void acpi_arch_set_root_pointer(u64 addr) 691 { 692 } 693 #endif 694 695 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 696 static inline u64 acpi_arch_get_root_pointer(void) 697 { 698 return 0; 699 } 700 #endif 701 702 #else /* !CONFIG_ACPI */ 703 704 #define acpi_disabled 1 705 706 #define ACPI_COMPANION(dev) (NULL) 707 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 708 #define ACPI_HANDLE(dev) (NULL) 709 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 710 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 711 712 struct fwnode_handle; 713 714 static inline bool acpi_dev_found(const char *hid) 715 { 716 return false; 717 } 718 719 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 720 { 721 return false; 722 } 723 724 struct acpi_device; 725 726 static inline bool 727 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 728 { 729 return false; 730 } 731 732 static inline struct acpi_device * 733 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 734 { 735 return NULL; 736 } 737 738 static inline void acpi_dev_put(struct acpi_device *adev) {} 739 740 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 741 { 742 return false; 743 } 744 745 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 746 { 747 return false; 748 } 749 750 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 751 { 752 return NULL; 753 } 754 755 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 756 { 757 return false; 758 } 759 760 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 761 { 762 return NULL; 763 } 764 765 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 766 const char *name) 767 { 768 return false; 769 } 770 771 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 772 { 773 return NULL; 774 } 775 776 static inline bool has_acpi_companion(struct device *dev) 777 { 778 return false; 779 } 780 781 static inline void acpi_preset_companion(struct device *dev, 782 struct acpi_device *parent, u64 addr) 783 { 784 } 785 786 static inline const char *acpi_dev_name(struct acpi_device *adev) 787 { 788 return NULL; 789 } 790 791 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 792 { 793 return NULL; 794 } 795 796 static inline void acpi_early_init(void) { } 797 static inline void acpi_subsystem_init(void) { } 798 799 static inline int early_acpi_boot_init(void) 800 { 801 return 0; 802 } 803 static inline int acpi_boot_init(void) 804 { 805 return 0; 806 } 807 808 static inline void acpi_boot_table_init(void) 809 { 810 return; 811 } 812 813 static inline int acpi_mps_check(void) 814 { 815 return 0; 816 } 817 818 static inline int acpi_check_resource_conflict(struct resource *res) 819 { 820 return 0; 821 } 822 823 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 824 const char *name) 825 { 826 return 0; 827 } 828 829 struct acpi_table_header; 830 static inline int acpi_table_parse(char *id, 831 int (*handler)(struct acpi_table_header *)) 832 { 833 return -ENODEV; 834 } 835 836 static inline int acpi_nvs_register(__u64 start, __u64 size) 837 { 838 return 0; 839 } 840 841 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 842 void *data) 843 { 844 return 0; 845 } 846 847 struct acpi_device_id; 848 849 static inline const struct acpi_device_id *acpi_match_device( 850 const struct acpi_device_id *ids, const struct device *dev) 851 { 852 return NULL; 853 } 854 855 static inline const void *acpi_device_get_match_data(const struct device *dev) 856 { 857 return NULL; 858 } 859 860 static inline bool acpi_driver_match_device(struct device *dev, 861 const struct device_driver *drv) 862 { 863 return false; 864 } 865 866 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 867 const guid_t *guid, 868 int rev, int func, 869 union acpi_object *argv4) 870 { 871 return NULL; 872 } 873 874 static inline int acpi_device_uevent_modalias(struct device *dev, 875 struct kobj_uevent_env *env) 876 { 877 return -ENODEV; 878 } 879 880 static inline int acpi_device_modalias(struct device *dev, 881 char *buf, int size) 882 { 883 return -ENODEV; 884 } 885 886 static inline bool acpi_dma_supported(struct acpi_device *adev) 887 { 888 return false; 889 } 890 891 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 892 { 893 return DEV_DMA_NOT_SUPPORTED; 894 } 895 896 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 897 u64 *offset, u64 *size) 898 { 899 return -ENODEV; 900 } 901 902 static inline int acpi_dma_configure(struct device *dev, 903 enum dev_dma_attr attr) 904 { 905 return 0; 906 } 907 908 #define ACPI_PTR(_ptr) (NULL) 909 910 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 911 { 912 } 913 914 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 915 { 916 } 917 918 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 919 { 920 return -EINVAL; 921 } 922 923 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 924 { 925 return -EINVAL; 926 } 927 928 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 929 { 930 return NULL; 931 } 932 933 #endif /* !CONFIG_ACPI */ 934 935 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 936 int acpi_ioapic_add(acpi_handle root); 937 #else 938 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 939 #endif 940 941 #ifdef CONFIG_ACPI 942 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 943 u32 pm1a_ctrl, u32 pm1b_ctrl)); 944 945 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 946 u32 pm1a_control, u32 pm1b_control); 947 948 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 949 u32 val_a, u32 val_b)); 950 951 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 952 u32 val_a, u32 val_b); 953 954 #ifdef CONFIG_X86 955 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 956 #else 957 static inline void arch_reserve_mem_area(acpi_physical_address addr, 958 size_t size) 959 { 960 } 961 #endif /* CONFIG_X86 */ 962 #else 963 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 964 #endif 965 966 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 967 int acpi_dev_suspend(struct device *dev, bool wakeup); 968 int acpi_dev_resume(struct device *dev); 969 int acpi_subsys_runtime_suspend(struct device *dev); 970 int acpi_subsys_runtime_resume(struct device *dev); 971 int acpi_dev_pm_attach(struct device *dev, bool power_on); 972 #else 973 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 974 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 975 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 976 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 977 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 978 { 979 return 0; 980 } 981 #endif 982 983 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 984 int acpi_subsys_prepare(struct device *dev); 985 void acpi_subsys_complete(struct device *dev); 986 int acpi_subsys_suspend_late(struct device *dev); 987 int acpi_subsys_suspend_noirq(struct device *dev); 988 int acpi_subsys_suspend(struct device *dev); 989 int acpi_subsys_freeze(struct device *dev); 990 int acpi_subsys_poweroff(struct device *dev); 991 void acpi_ec_mark_gpe_for_wake(void); 992 void acpi_ec_set_gpe_wake_mask(u8 action); 993 #else 994 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 995 static inline void acpi_subsys_complete(struct device *dev) {} 996 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 997 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 998 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 999 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1000 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1001 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1002 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1003 #endif 1004 1005 #ifdef CONFIG_ACPI 1006 __printf(3, 4) 1007 void acpi_handle_printk(const char *level, acpi_handle handle, 1008 const char *fmt, ...); 1009 #else /* !CONFIG_ACPI */ 1010 static inline __printf(3, 4) void 1011 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1012 #endif /* !CONFIG_ACPI */ 1013 1014 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1015 __printf(3, 4) 1016 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1017 #endif 1018 1019 /* 1020 * acpi_handle_<level>: Print message with ACPI prefix and object path 1021 * 1022 * These interfaces acquire the global namespace mutex to obtain an object 1023 * path. In interrupt context, it shows the object path as <n/a>. 1024 */ 1025 #define acpi_handle_emerg(handle, fmt, ...) \ 1026 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1027 #define acpi_handle_alert(handle, fmt, ...) \ 1028 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1029 #define acpi_handle_crit(handle, fmt, ...) \ 1030 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1031 #define acpi_handle_err(handle, fmt, ...) \ 1032 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1033 #define acpi_handle_warn(handle, fmt, ...) \ 1034 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1035 #define acpi_handle_notice(handle, fmt, ...) \ 1036 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1037 #define acpi_handle_info(handle, fmt, ...) \ 1038 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1039 1040 #if defined(DEBUG) 1041 #define acpi_handle_debug(handle, fmt, ...) \ 1042 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1043 #else 1044 #if defined(CONFIG_DYNAMIC_DEBUG) 1045 #define acpi_handle_debug(handle, fmt, ...) \ 1046 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1047 handle, pr_fmt(fmt), ##__VA_ARGS__) 1048 #else 1049 #define acpi_handle_debug(handle, fmt, ...) \ 1050 ({ \ 1051 if (0) \ 1052 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1053 0; \ 1054 }) 1055 #endif 1056 #endif 1057 1058 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1059 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1060 struct acpi_resource_gpio **agpio); 1061 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1062 #else 1063 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1064 struct acpi_resource_gpio **agpio) 1065 { 1066 return false; 1067 } 1068 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1069 { 1070 return -ENXIO; 1071 } 1072 #endif 1073 1074 /* Device properties */ 1075 1076 #ifdef CONFIG_ACPI 1077 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1078 acpi_object_type type, const union acpi_object **obj); 1079 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1080 const char *name, size_t index, size_t num_args, 1081 struct fwnode_reference_args *args); 1082 1083 static inline int acpi_node_get_property_reference( 1084 const struct fwnode_handle *fwnode, 1085 const char *name, size_t index, 1086 struct fwnode_reference_args *args) 1087 { 1088 return __acpi_node_get_property_reference(fwnode, name, index, 1089 NR_FWNODE_REFERENCE_ARGS, args); 1090 } 1091 1092 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1093 { 1094 return !list_empty(&adev->data.properties); 1095 } 1096 1097 struct acpi_device_properties * 1098 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1099 const union acpi_object *properties); 1100 1101 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1102 void **valptr); 1103 int acpi_dev_prop_read_single(struct acpi_device *adev, 1104 const char *propname, enum dev_prop_type proptype, 1105 void *val); 1106 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1107 const char *propname, enum dev_prop_type proptype, 1108 void *val, size_t nval); 1109 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1110 enum dev_prop_type proptype, void *val, size_t nval); 1111 1112 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1113 struct fwnode_handle *child); 1114 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1115 1116 struct acpi_probe_entry; 1117 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1118 struct acpi_probe_entry *); 1119 1120 #define ACPI_TABLE_ID_LEN 5 1121 1122 /** 1123 * struct acpi_probe_entry - boot-time probing entry 1124 * @id: ACPI table name 1125 * @type: Optional subtable type to match 1126 * (if @id contains subtables) 1127 * @subtable_valid: Optional callback to check the validity of 1128 * the subtable 1129 * @probe_table: Callback to the driver being probed when table 1130 * match is successful 1131 * @probe_subtbl: Callback to the driver being probed when table and 1132 * subtable match (and optional callback is successful) 1133 * @driver_data: Sideband data provided back to the driver 1134 */ 1135 struct acpi_probe_entry { 1136 __u8 id[ACPI_TABLE_ID_LEN]; 1137 __u8 type; 1138 acpi_probe_entry_validate_subtbl subtable_valid; 1139 union { 1140 acpi_tbl_table_handler probe_table; 1141 acpi_tbl_entry_handler probe_subtbl; 1142 }; 1143 kernel_ulong_t driver_data; 1144 }; 1145 1146 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1147 static const struct acpi_probe_entry __acpi_probe_##name \ 1148 __used __section(__##table##_acpi_probe_table) \ 1149 = { \ 1150 .id = table_id, \ 1151 .type = subtable, \ 1152 .subtable_valid = valid, \ 1153 .probe_table = (acpi_tbl_table_handler)fn, \ 1154 .driver_data = data, \ 1155 } 1156 1157 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1158 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1159 1160 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1161 1162 #define acpi_probe_device_table(t) \ 1163 ({ \ 1164 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1165 ACPI_PROBE_TABLE_END(t); \ 1166 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1167 (&ACPI_PROBE_TABLE_END(t) - \ 1168 &ACPI_PROBE_TABLE(t))); \ 1169 }) 1170 #else 1171 static inline int acpi_dev_get_property(struct acpi_device *adev, 1172 const char *name, acpi_object_type type, 1173 const union acpi_object **obj) 1174 { 1175 return -ENXIO; 1176 } 1177 1178 static inline int 1179 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1180 const char *name, size_t index, size_t num_args, 1181 struct fwnode_reference_args *args) 1182 { 1183 return -ENXIO; 1184 } 1185 1186 static inline int 1187 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1188 const char *name, size_t index, 1189 struct fwnode_reference_args *args) 1190 { 1191 return -ENXIO; 1192 } 1193 1194 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1195 const char *propname, 1196 void **valptr) 1197 { 1198 return -ENXIO; 1199 } 1200 1201 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1202 const char *propname, 1203 void **valptr) 1204 { 1205 return -ENXIO; 1206 } 1207 1208 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1209 const char *propname, 1210 enum dev_prop_type proptype, 1211 void *val) 1212 { 1213 return -ENXIO; 1214 } 1215 1216 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1217 const char *propname, 1218 enum dev_prop_type proptype, 1219 void *val, size_t nval) 1220 { 1221 return -ENXIO; 1222 } 1223 1224 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1225 const char *propname, 1226 enum dev_prop_type proptype, 1227 void *val, size_t nval) 1228 { 1229 return -ENXIO; 1230 } 1231 1232 static inline struct fwnode_handle * 1233 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1234 struct fwnode_handle *child) 1235 { 1236 return NULL; 1237 } 1238 1239 static inline struct fwnode_handle * 1240 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1241 { 1242 return NULL; 1243 } 1244 1245 static inline struct fwnode_handle * 1246 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1247 struct fwnode_handle *prev) 1248 { 1249 return ERR_PTR(-ENXIO); 1250 } 1251 1252 static inline int 1253 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1254 struct fwnode_handle **remote, 1255 struct fwnode_handle **port, 1256 struct fwnode_handle **endpoint) 1257 { 1258 return -ENXIO; 1259 } 1260 1261 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1262 static const void * __acpi_table_##name[] \ 1263 __attribute__((unused)) \ 1264 = { (void *) table_id, \ 1265 (void *) subtable, \ 1266 (void *) valid, \ 1267 (void *) fn, \ 1268 (void *) data } 1269 1270 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1271 #endif 1272 1273 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1274 void acpi_table_upgrade(void); 1275 #else 1276 static inline void acpi_table_upgrade(void) { } 1277 #endif 1278 1279 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1280 extern bool acpi_has_watchdog(void); 1281 #else 1282 static inline bool acpi_has_watchdog(void) { return false; } 1283 #endif 1284 1285 #ifdef CONFIG_ACPI_SPCR_TABLE 1286 extern bool qdf2400_e44_present; 1287 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1288 #else 1289 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1290 { 1291 return 0; 1292 } 1293 #endif 1294 1295 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1296 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1297 #else 1298 static inline 1299 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1300 { 1301 return -EINVAL; 1302 } 1303 #endif 1304 1305 #ifdef CONFIG_ACPI_LPIT 1306 int lpit_read_residency_count_address(u64 *address); 1307 #else 1308 static inline int lpit_read_residency_count_address(u64 *address) 1309 { 1310 return -EINVAL; 1311 } 1312 #endif 1313 1314 #ifdef CONFIG_ACPI_PPTT 1315 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1316 int find_acpi_cpu_topology(unsigned int cpu, int level); 1317 int find_acpi_cpu_topology_package(unsigned int cpu); 1318 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1319 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1320 #else 1321 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1322 { 1323 return -EINVAL; 1324 } 1325 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1326 { 1327 return -EINVAL; 1328 } 1329 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1330 { 1331 return -EINVAL; 1332 } 1333 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1334 { 1335 return -EINVAL; 1336 } 1337 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1338 { 1339 return -EINVAL; 1340 } 1341 #endif 1342 1343 #ifdef CONFIG_ACPI 1344 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1345 #else 1346 static inline int 1347 acpi_platform_notify(struct device *dev, enum kobject_action action) 1348 { 1349 return 0; 1350 } 1351 #endif 1352 1353 #endif /*_LINUX_ACPI_H*/ 1354