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