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); 282 283 #ifdef CONFIG_ACPI_HOTPLUG_CPU 284 /* Arch dependent functions for cpu hotplug support */ 285 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 286 int *pcpu); 287 int acpi_unmap_cpu(int cpu); 288 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 289 290 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 291 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 292 #endif 293 294 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 295 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 296 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 297 void acpi_irq_stats_init(void); 298 extern u32 acpi_irq_handled; 299 extern u32 acpi_irq_not_handled; 300 extern unsigned int acpi_sci_irq; 301 extern bool acpi_no_s5; 302 #define INVALID_ACPI_IRQ ((unsigned)-1) 303 static inline bool acpi_sci_irq_valid(void) 304 { 305 return acpi_sci_irq != INVALID_ACPI_IRQ; 306 } 307 308 extern int sbf_port; 309 extern unsigned long acpi_realmode_flags; 310 311 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 312 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 313 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 314 315 void acpi_set_irq_model(enum acpi_irq_model_id model, 316 struct fwnode_handle *fwnode); 317 318 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 319 unsigned int size, 320 struct fwnode_handle *fwnode, 321 const struct irq_domain_ops *ops, 322 void *host_data); 323 324 #ifdef CONFIG_X86_IO_APIC 325 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 326 #else 327 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 328 { 329 return -1; 330 } 331 #endif 332 /* 333 * This function undoes the effect of one call to acpi_register_gsi(). 334 * If this matches the last registration, any IRQ resources for gsi 335 * are freed. 336 */ 337 void acpi_unregister_gsi (u32 gsi); 338 339 struct pci_dev; 340 341 int acpi_pci_irq_enable (struct pci_dev *dev); 342 void acpi_penalize_isa_irq(int irq, int active); 343 bool acpi_isa_irq_available(int irq); 344 #ifdef CONFIG_PCI 345 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 346 #else 347 static inline void acpi_penalize_sci_irq(int irq, int trigger, 348 int polarity) 349 { 350 } 351 #endif 352 void acpi_pci_irq_disable (struct pci_dev *dev); 353 354 extern int ec_read(u8 addr, u8 *val); 355 extern int ec_write(u8 addr, u8 val); 356 extern int ec_transaction(u8 command, 357 const u8 *wdata, unsigned wdata_len, 358 u8 *rdata, unsigned rdata_len); 359 extern acpi_handle ec_get_handle(void); 360 361 extern bool acpi_is_pnp_device(struct acpi_device *); 362 363 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 364 365 typedef void (*wmi_notify_handler) (u32 value, void *context); 366 367 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 368 u32 method_id, 369 const struct acpi_buffer *in, 370 struct acpi_buffer *out); 371 extern acpi_status wmi_query_block(const char *guid, u8 instance, 372 struct acpi_buffer *out); 373 extern acpi_status wmi_set_block(const char *guid, u8 instance, 374 const struct acpi_buffer *in); 375 extern acpi_status wmi_install_notify_handler(const char *guid, 376 wmi_notify_handler handler, void *data); 377 extern acpi_status wmi_remove_notify_handler(const char *guid); 378 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 379 extern bool wmi_has_guid(const char *guid); 380 extern char *wmi_get_acpi_device_uid(const char *guid); 381 382 #endif /* CONFIG_ACPI_WMI */ 383 384 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 385 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 386 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 387 #define ACPI_VIDEO_BACKLIGHT 0x0008 388 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 389 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 390 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 391 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 392 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 393 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 394 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 395 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 396 397 extern char acpi_video_backlight_string[]; 398 extern long acpi_is_video_device(acpi_handle handle); 399 extern int acpi_blacklisted(void); 400 extern void acpi_osi_setup(char *str); 401 extern bool acpi_osi_is_win8(void); 402 403 #ifdef CONFIG_ACPI_NUMA 404 int acpi_map_pxm_to_online_node(int pxm); 405 int acpi_map_pxm_to_node(int pxm); 406 int acpi_get_node(acpi_handle handle); 407 #else 408 static inline int acpi_map_pxm_to_online_node(int pxm) 409 { 410 return 0; 411 } 412 static inline int acpi_map_pxm_to_node(int pxm) 413 { 414 return 0; 415 } 416 static inline int acpi_get_node(acpi_handle handle) 417 { 418 return 0; 419 } 420 #endif 421 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 422 423 extern int pnpacpi_disabled; 424 425 #define PXM_INVAL (-1) 426 427 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 428 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 429 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 430 struct resource_win *win); 431 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 432 struct resource_win *win); 433 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 434 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 435 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 436 struct resource *res); 437 438 void acpi_dev_free_resource_list(struct list_head *list); 439 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 440 int (*preproc)(struct acpi_resource *, void *), 441 void *preproc_data); 442 int acpi_dev_get_dma_resources(struct acpi_device *adev, 443 struct list_head *list); 444 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 445 unsigned long types); 446 447 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 448 void *arg) 449 { 450 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 451 } 452 453 struct acpi_device *acpi_resource_consumer(struct resource *res); 454 455 int acpi_check_resource_conflict(const struct resource *res); 456 457 int acpi_check_region(resource_size_t start, resource_size_t n, 458 const char *name); 459 460 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 461 u32 level); 462 463 int acpi_resources_are_enforced(void); 464 465 #ifdef CONFIG_HIBERNATION 466 void __init acpi_no_s4_hw_signature(void); 467 #endif 468 469 #ifdef CONFIG_PM_SLEEP 470 void __init acpi_old_suspend_ordering(void); 471 void __init acpi_nvs_nosave(void); 472 void __init acpi_nvs_nosave_s3(void); 473 void __init acpi_sleep_no_blacklist(void); 474 #endif /* CONFIG_PM_SLEEP */ 475 476 struct acpi_osc_context { 477 char *uuid_str; /* UUID string */ 478 int rev; 479 struct acpi_buffer cap; /* list of DWORD capabilities */ 480 struct acpi_buffer ret; /* free by caller if success */ 481 }; 482 483 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 484 485 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 486 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 487 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 488 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 489 490 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 491 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 492 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 493 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 494 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 495 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 496 497 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 498 #define OSC_SB_PAD_SUPPORT 0x00000001 499 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 500 #define OSC_SB_PR3_SUPPORT 0x00000004 501 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 502 #define OSC_SB_APEI_SUPPORT 0x00000010 503 #define OSC_SB_CPC_SUPPORT 0x00000020 504 #define OSC_SB_CPCV2_SUPPORT 0x00000040 505 #define OSC_SB_PCLPI_SUPPORT 0x00000080 506 #define OSC_SB_OSLPI_SUPPORT 0x00000100 507 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 508 509 extern bool osc_sb_apei_support_acked; 510 extern bool osc_pc_lpi_support_confirmed; 511 512 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 513 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 514 #define OSC_PCI_ASPM_SUPPORT 0x00000002 515 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 516 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 517 #define OSC_PCI_MSI_SUPPORT 0x00000010 518 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 519 #define OSC_PCI_SUPPORT_MASKS 0x0000011f 520 521 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 522 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 523 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 524 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 525 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 526 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 527 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 528 #define OSC_PCI_CONTROL_MASKS 0x0000003f 529 530 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 531 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 532 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 533 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 534 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 535 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 536 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 537 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 538 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 539 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 540 541 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 542 u32 *mask, u32 req); 543 544 /* Enable _OST when all relevant hotplug operations are enabled */ 545 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 546 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 547 defined(CONFIG_ACPI_CONTAINER) 548 #define ACPI_HOTPLUG_OST 549 #endif 550 551 /* _OST Source Event Code (OSPM Action) */ 552 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 553 #define ACPI_OST_EC_OSPM_EJECT 0x103 554 #define ACPI_OST_EC_OSPM_INSERTION 0x200 555 556 /* _OST General Processing Status Code */ 557 #define ACPI_OST_SC_SUCCESS 0x0 558 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 559 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 560 561 /* _OST OS Shutdown Processing (0x100) Status Code */ 562 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 563 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 564 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 565 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 566 567 /* _OST Ejection Request (0x3, 0x103) Status Code */ 568 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 569 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 570 #define ACPI_OST_SC_DEVICE_BUSY 0x82 571 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 572 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 573 574 /* _OST Insertion Request (0x200) Status Code */ 575 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 576 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 577 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 578 579 enum acpi_predicate { 580 all_versions, 581 less_than_or_equal, 582 equal, 583 greater_than_or_equal, 584 }; 585 586 /* Table must be terminted by a NULL entry */ 587 struct acpi_platform_list { 588 char oem_id[ACPI_OEM_ID_SIZE+1]; 589 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 590 u32 oem_revision; 591 char *table; 592 enum acpi_predicate pred; 593 char *reason; 594 u32 data; 595 }; 596 int acpi_match_platform_list(const struct acpi_platform_list *plat); 597 598 extern void acpi_early_init(void); 599 extern void acpi_subsystem_init(void); 600 extern void arch_post_acpi_subsys_init(void); 601 602 extern int acpi_nvs_register(__u64 start, __u64 size); 603 604 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 605 void *data); 606 607 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 608 const struct device *dev); 609 610 const void *acpi_device_get_match_data(const struct device *dev); 611 extern bool acpi_driver_match_device(struct device *dev, 612 const struct device_driver *drv); 613 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 614 int acpi_device_modalias(struct device *, char *, int); 615 void acpi_walk_dep_device_list(acpi_handle handle); 616 617 struct platform_device *acpi_create_platform_device(struct acpi_device *, 618 struct property_entry *); 619 #define ACPI_PTR(_ptr) (_ptr) 620 621 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 622 { 623 adev->flags.visited = true; 624 } 625 626 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 627 { 628 adev->flags.visited = false; 629 } 630 631 enum acpi_reconfig_event { 632 ACPI_RECONFIG_DEVICE_ADD = 0, 633 ACPI_RECONFIG_DEVICE_REMOVE, 634 }; 635 636 int acpi_reconfig_notifier_register(struct notifier_block *nb); 637 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 638 639 #ifdef CONFIG_ACPI_GTDT 640 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 641 int acpi_gtdt_map_ppi(int type); 642 bool acpi_gtdt_c3stop(int type); 643 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 644 #endif 645 646 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 647 static inline u64 acpi_arch_get_root_pointer(void) 648 { 649 return 0; 650 } 651 #endif 652 653 #else /* !CONFIG_ACPI */ 654 655 #define acpi_disabled 1 656 657 #define ACPI_COMPANION(dev) (NULL) 658 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 659 #define ACPI_HANDLE(dev) (NULL) 660 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 661 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 662 663 struct fwnode_handle; 664 665 static inline bool acpi_dev_found(const char *hid) 666 { 667 return false; 668 } 669 670 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 671 { 672 return false; 673 } 674 675 static inline struct acpi_device * 676 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 677 { 678 return NULL; 679 } 680 681 static inline void acpi_dev_put(struct acpi_device *adev) {} 682 683 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 684 { 685 return false; 686 } 687 688 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 689 { 690 return false; 691 } 692 693 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 694 { 695 return NULL; 696 } 697 698 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 699 { 700 return false; 701 } 702 703 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 704 { 705 return NULL; 706 } 707 708 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 709 const char *name) 710 { 711 return false; 712 } 713 714 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 715 { 716 return NULL; 717 } 718 719 static inline bool has_acpi_companion(struct device *dev) 720 { 721 return false; 722 } 723 724 static inline void acpi_preset_companion(struct device *dev, 725 struct acpi_device *parent, u64 addr) 726 { 727 } 728 729 static inline const char *acpi_dev_name(struct acpi_device *adev) 730 { 731 return NULL; 732 } 733 734 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 735 { 736 return NULL; 737 } 738 739 static inline void acpi_early_init(void) { } 740 static inline void acpi_subsystem_init(void) { } 741 742 static inline int early_acpi_boot_init(void) 743 { 744 return 0; 745 } 746 static inline int acpi_boot_init(void) 747 { 748 return 0; 749 } 750 751 static inline void acpi_boot_table_init(void) 752 { 753 return; 754 } 755 756 static inline int acpi_mps_check(void) 757 { 758 return 0; 759 } 760 761 static inline int acpi_check_resource_conflict(struct resource *res) 762 { 763 return 0; 764 } 765 766 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 767 const char *name) 768 { 769 return 0; 770 } 771 772 struct acpi_table_header; 773 static inline int acpi_table_parse(char *id, 774 int (*handler)(struct acpi_table_header *)) 775 { 776 return -ENODEV; 777 } 778 779 static inline int acpi_nvs_register(__u64 start, __u64 size) 780 { 781 return 0; 782 } 783 784 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 785 void *data) 786 { 787 return 0; 788 } 789 790 struct acpi_device_id; 791 792 static inline const struct acpi_device_id *acpi_match_device( 793 const struct acpi_device_id *ids, const struct device *dev) 794 { 795 return NULL; 796 } 797 798 static inline const void *acpi_device_get_match_data(const struct device *dev) 799 { 800 return NULL; 801 } 802 803 static inline bool acpi_driver_match_device(struct device *dev, 804 const struct device_driver *drv) 805 { 806 return false; 807 } 808 809 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 810 const guid_t *guid, 811 int rev, int func, 812 union acpi_object *argv4) 813 { 814 return NULL; 815 } 816 817 static inline int acpi_device_uevent_modalias(struct device *dev, 818 struct kobj_uevent_env *env) 819 { 820 return -ENODEV; 821 } 822 823 static inline int acpi_device_modalias(struct device *dev, 824 char *buf, int size) 825 { 826 return -ENODEV; 827 } 828 829 static inline bool acpi_dma_supported(struct acpi_device *adev) 830 { 831 return false; 832 } 833 834 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 835 { 836 return DEV_DMA_NOT_SUPPORTED; 837 } 838 839 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 840 u64 *offset, u64 *size) 841 { 842 return -ENODEV; 843 } 844 845 static inline int acpi_dma_configure(struct device *dev, 846 enum dev_dma_attr attr) 847 { 848 return 0; 849 } 850 851 #define ACPI_PTR(_ptr) (NULL) 852 853 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 854 { 855 } 856 857 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 858 { 859 } 860 861 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 862 { 863 return -EINVAL; 864 } 865 866 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 867 { 868 return -EINVAL; 869 } 870 871 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 872 { 873 return NULL; 874 } 875 876 #endif /* !CONFIG_ACPI */ 877 878 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 879 int acpi_ioapic_add(acpi_handle root); 880 #else 881 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 882 #endif 883 884 #ifdef CONFIG_ACPI 885 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 886 u32 pm1a_ctrl, u32 pm1b_ctrl)); 887 888 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 889 u32 pm1a_control, u32 pm1b_control); 890 891 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 892 u32 val_a, u32 val_b)); 893 894 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 895 u32 val_a, u32 val_b); 896 897 #ifdef CONFIG_X86 898 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 899 #else 900 static inline void arch_reserve_mem_area(acpi_physical_address addr, 901 size_t size) 902 { 903 } 904 #endif /* CONFIG_X86 */ 905 #else 906 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 907 #endif 908 909 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 910 int acpi_dev_suspend(struct device *dev, bool wakeup); 911 int acpi_dev_resume(struct device *dev); 912 int acpi_subsys_runtime_suspend(struct device *dev); 913 int acpi_subsys_runtime_resume(struct device *dev); 914 int acpi_dev_pm_attach(struct device *dev, bool power_on); 915 #else 916 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 917 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 918 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 919 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 920 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 921 { 922 return 0; 923 } 924 #endif 925 926 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 927 int acpi_subsys_prepare(struct device *dev); 928 void acpi_subsys_complete(struct device *dev); 929 int acpi_subsys_suspend_late(struct device *dev); 930 int acpi_subsys_suspend_noirq(struct device *dev); 931 int acpi_subsys_suspend(struct device *dev); 932 int acpi_subsys_freeze(struct device *dev); 933 int acpi_subsys_poweroff(struct device *dev); 934 #else 935 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 936 static inline void acpi_subsys_complete(struct device *dev) {} 937 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 938 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 939 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 940 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 941 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 942 #endif 943 944 #ifdef CONFIG_ACPI 945 __printf(3, 4) 946 void acpi_handle_printk(const char *level, acpi_handle handle, 947 const char *fmt, ...); 948 #else /* !CONFIG_ACPI */ 949 static inline __printf(3, 4) void 950 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 951 #endif /* !CONFIG_ACPI */ 952 953 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 954 __printf(3, 4) 955 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 956 #endif 957 958 /* 959 * acpi_handle_<level>: Print message with ACPI prefix and object path 960 * 961 * These interfaces acquire the global namespace mutex to obtain an object 962 * path. In interrupt context, it shows the object path as <n/a>. 963 */ 964 #define acpi_handle_emerg(handle, fmt, ...) \ 965 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 966 #define acpi_handle_alert(handle, fmt, ...) \ 967 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 968 #define acpi_handle_crit(handle, fmt, ...) \ 969 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 970 #define acpi_handle_err(handle, fmt, ...) \ 971 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 972 #define acpi_handle_warn(handle, fmt, ...) \ 973 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 974 #define acpi_handle_notice(handle, fmt, ...) \ 975 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 976 #define acpi_handle_info(handle, fmt, ...) \ 977 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 978 979 #if defined(DEBUG) 980 #define acpi_handle_debug(handle, fmt, ...) \ 981 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 982 #else 983 #if defined(CONFIG_DYNAMIC_DEBUG) 984 #define acpi_handle_debug(handle, fmt, ...) \ 985 _dynamic_func_call(fmt, __acpi_handle_debug, \ 986 handle, pr_fmt(fmt), ##__VA_ARGS__) 987 #else 988 #define acpi_handle_debug(handle, fmt, ...) \ 989 ({ \ 990 if (0) \ 991 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 992 0; \ 993 }) 994 #endif 995 #endif 996 997 struct acpi_gpio_params { 998 unsigned int crs_entry_index; 999 unsigned int line_index; 1000 bool active_low; 1001 }; 1002 1003 struct acpi_gpio_mapping { 1004 const char *name; 1005 const struct acpi_gpio_params *data; 1006 unsigned int size; 1007 1008 /* Ignore IoRestriction field */ 1009 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) 1010 /* 1011 * When ACPI GPIO mapping table is in use the index parameter inside it 1012 * refers to the GPIO resource in _CRS method. That index has no 1013 * distinction of actual type of the resource. When consumer wants to 1014 * get GpioIo type explicitly, this quirk may be used. 1015 */ 1016 #define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1) 1017 1018 unsigned int quirks; 1019 }; 1020 1021 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1022 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1023 const struct acpi_gpio_mapping *gpios); 1024 1025 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 1026 { 1027 if (adev) 1028 adev->driver_gpios = NULL; 1029 } 1030 1031 int devm_acpi_dev_add_driver_gpios(struct device *dev, 1032 const struct acpi_gpio_mapping *gpios); 1033 void devm_acpi_dev_remove_driver_gpios(struct device *dev); 1034 1035 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1036 struct acpi_resource_gpio **agpio); 1037 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1038 #else 1039 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1040 const struct acpi_gpio_mapping *gpios) 1041 { 1042 return -ENXIO; 1043 } 1044 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 1045 1046 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev, 1047 const struct acpi_gpio_mapping *gpios) 1048 { 1049 return -ENXIO; 1050 } 1051 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {} 1052 1053 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1054 struct acpi_resource_gpio **agpio) 1055 { 1056 return false; 1057 } 1058 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1059 { 1060 return -ENXIO; 1061 } 1062 #endif 1063 1064 /* Device properties */ 1065 1066 #ifdef CONFIG_ACPI 1067 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1068 acpi_object_type type, const union acpi_object **obj); 1069 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1070 const char *name, size_t index, size_t num_args, 1071 struct fwnode_reference_args *args); 1072 1073 static inline int acpi_node_get_property_reference( 1074 const struct fwnode_handle *fwnode, 1075 const char *name, size_t index, 1076 struct fwnode_reference_args *args) 1077 { 1078 return __acpi_node_get_property_reference(fwnode, name, index, 1079 NR_FWNODE_REFERENCE_ARGS, args); 1080 } 1081 1082 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1083 { 1084 return !list_empty(&adev->data.properties); 1085 } 1086 1087 struct acpi_device_properties * 1088 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1089 const union acpi_object *properties); 1090 1091 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1092 void **valptr); 1093 int acpi_dev_prop_read_single(struct acpi_device *adev, 1094 const char *propname, enum dev_prop_type proptype, 1095 void *val); 1096 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1097 const char *propname, enum dev_prop_type proptype, 1098 void *val, size_t nval); 1099 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1100 enum dev_prop_type proptype, void *val, size_t nval); 1101 1102 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1103 struct fwnode_handle *child); 1104 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1105 1106 struct acpi_probe_entry; 1107 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1108 struct acpi_probe_entry *); 1109 1110 #define ACPI_TABLE_ID_LEN 5 1111 1112 /** 1113 * struct acpi_probe_entry - boot-time probing entry 1114 * @id: ACPI table name 1115 * @type: Optional subtable type to match 1116 * (if @id contains subtables) 1117 * @subtable_valid: Optional callback to check the validity of 1118 * the subtable 1119 * @probe_table: Callback to the driver being probed when table 1120 * match is successful 1121 * @probe_subtbl: Callback to the driver being probed when table and 1122 * subtable match (and optional callback is successful) 1123 * @driver_data: Sideband data provided back to the driver 1124 */ 1125 struct acpi_probe_entry { 1126 __u8 id[ACPI_TABLE_ID_LEN]; 1127 __u8 type; 1128 acpi_probe_entry_validate_subtbl subtable_valid; 1129 union { 1130 acpi_tbl_table_handler probe_table; 1131 acpi_tbl_entry_handler probe_subtbl; 1132 }; 1133 kernel_ulong_t driver_data; 1134 }; 1135 1136 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1137 static const struct acpi_probe_entry __acpi_probe_##name \ 1138 __used __section(__##table##_acpi_probe_table) \ 1139 = { \ 1140 .id = table_id, \ 1141 .type = subtable, \ 1142 .subtable_valid = valid, \ 1143 .probe_table = (acpi_tbl_table_handler)fn, \ 1144 .driver_data = data, \ 1145 } 1146 1147 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1148 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1149 1150 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1151 1152 #define acpi_probe_device_table(t) \ 1153 ({ \ 1154 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1155 ACPI_PROBE_TABLE_END(t); \ 1156 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1157 (&ACPI_PROBE_TABLE_END(t) - \ 1158 &ACPI_PROBE_TABLE(t))); \ 1159 }) 1160 #else 1161 static inline int acpi_dev_get_property(struct acpi_device *adev, 1162 const char *name, acpi_object_type type, 1163 const union acpi_object **obj) 1164 { 1165 return -ENXIO; 1166 } 1167 1168 static inline int 1169 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1170 const char *name, size_t index, size_t num_args, 1171 struct fwnode_reference_args *args) 1172 { 1173 return -ENXIO; 1174 } 1175 1176 static inline int 1177 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1178 const char *name, size_t index, 1179 struct fwnode_reference_args *args) 1180 { 1181 return -ENXIO; 1182 } 1183 1184 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1185 const char *propname, 1186 void **valptr) 1187 { 1188 return -ENXIO; 1189 } 1190 1191 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1192 const char *propname, 1193 void **valptr) 1194 { 1195 return -ENXIO; 1196 } 1197 1198 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1199 const char *propname, 1200 enum dev_prop_type proptype, 1201 void *val) 1202 { 1203 return -ENXIO; 1204 } 1205 1206 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1207 const char *propname, 1208 enum dev_prop_type proptype, 1209 void *val, size_t nval) 1210 { 1211 return -ENXIO; 1212 } 1213 1214 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1215 const char *propname, 1216 enum dev_prop_type proptype, 1217 void *val, size_t nval) 1218 { 1219 return -ENXIO; 1220 } 1221 1222 static inline struct fwnode_handle * 1223 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1224 struct fwnode_handle *child) 1225 { 1226 return NULL; 1227 } 1228 1229 static inline struct fwnode_handle * 1230 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1231 { 1232 return NULL; 1233 } 1234 1235 static inline struct fwnode_handle * 1236 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1237 struct fwnode_handle *prev) 1238 { 1239 return ERR_PTR(-ENXIO); 1240 } 1241 1242 static inline int 1243 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1244 struct fwnode_handle **remote, 1245 struct fwnode_handle **port, 1246 struct fwnode_handle **endpoint) 1247 { 1248 return -ENXIO; 1249 } 1250 1251 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1252 static const void * __acpi_table_##name[] \ 1253 __attribute__((unused)) \ 1254 = { (void *) table_id, \ 1255 (void *) subtable, \ 1256 (void *) valid, \ 1257 (void *) fn, \ 1258 (void *) data } 1259 1260 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1261 #endif 1262 1263 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1264 void acpi_table_upgrade(void); 1265 #else 1266 static inline void acpi_table_upgrade(void) { } 1267 #endif 1268 1269 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1270 extern bool acpi_has_watchdog(void); 1271 #else 1272 static inline bool acpi_has_watchdog(void) { return false; } 1273 #endif 1274 1275 #ifdef CONFIG_ACPI_SPCR_TABLE 1276 extern bool qdf2400_e44_present; 1277 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1278 #else 1279 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1280 { 1281 return 0; 1282 } 1283 #endif 1284 1285 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1286 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1287 #else 1288 static inline 1289 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1290 { 1291 return -EINVAL; 1292 } 1293 #endif 1294 1295 #ifdef CONFIG_ACPI_LPIT 1296 int lpit_read_residency_count_address(u64 *address); 1297 #else 1298 static inline int lpit_read_residency_count_address(u64 *address) 1299 { 1300 return -EINVAL; 1301 } 1302 #endif 1303 1304 #ifdef CONFIG_ACPI_PPTT 1305 int find_acpi_cpu_topology(unsigned int cpu, int level); 1306 int find_acpi_cpu_topology_package(unsigned int cpu); 1307 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1308 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1309 #else 1310 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1311 { 1312 return -EINVAL; 1313 } 1314 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1315 { 1316 return -EINVAL; 1317 } 1318 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1319 { 1320 return -EINVAL; 1321 } 1322 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1323 { 1324 return -EINVAL; 1325 } 1326 #endif 1327 1328 #ifdef CONFIG_ACPI 1329 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1330 #else 1331 static inline int 1332 acpi_platform_notify(struct device *dev, enum kobject_action action) 1333 { 1334 return 0; 1335 } 1336 #endif 1337 1338 #endif /*_LINUX_ACPI_H*/ 1339