1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 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 * pxm_to_online_node - Map proximity ID to online node 424 * @pxm: ACPI proximity ID 425 * 426 * This is similar to 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 SRAT memory entry does not exist, 434 * or NUMA is disabled, ex. "numa=off" on x86. 435 */ 436 static inline int pxm_to_online_node(int pxm) 437 { 438 int node = pxm_to_node(pxm); 439 440 return numa_map_to_online_node(node); 441 } 442 #else 443 static inline int pxm_to_online_node(int pxm) 444 { 445 return 0; 446 } 447 static inline int acpi_map_pxm_to_node(int pxm) 448 { 449 return 0; 450 } 451 static inline int acpi_get_node(acpi_handle handle) 452 { 453 return 0; 454 } 455 #endif 456 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 457 458 extern int pnpacpi_disabled; 459 460 #define PXM_INVAL (-1) 461 462 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 463 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 464 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 465 struct resource_win *win); 466 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 467 struct resource_win *win); 468 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 469 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 470 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 471 struct resource *res); 472 473 void acpi_dev_free_resource_list(struct list_head *list); 474 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 475 int (*preproc)(struct acpi_resource *, void *), 476 void *preproc_data); 477 int acpi_dev_get_dma_resources(struct acpi_device *adev, 478 struct list_head *list); 479 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 480 unsigned long types); 481 482 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 483 void *arg) 484 { 485 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 486 } 487 488 struct acpi_device *acpi_resource_consumer(struct resource *res); 489 490 int acpi_check_resource_conflict(const struct resource *res); 491 492 int acpi_check_region(resource_size_t start, resource_size_t n, 493 const char *name); 494 495 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 496 u32 level); 497 498 int acpi_resources_are_enforced(void); 499 500 #ifdef CONFIG_HIBERNATION 501 void __init acpi_no_s4_hw_signature(void); 502 #endif 503 504 #ifdef CONFIG_PM_SLEEP 505 void __init acpi_old_suspend_ordering(void); 506 void __init acpi_nvs_nosave(void); 507 void __init acpi_nvs_nosave_s3(void); 508 void __init acpi_sleep_no_blacklist(void); 509 #endif /* CONFIG_PM_SLEEP */ 510 511 int acpi_register_wakeup_handler( 512 int wake_irq, bool (*wakeup)(void *context), void *context); 513 void acpi_unregister_wakeup_handler( 514 bool (*wakeup)(void *context), void *context); 515 516 struct acpi_osc_context { 517 char *uuid_str; /* UUID string */ 518 int rev; 519 struct acpi_buffer cap; /* list of DWORD capabilities */ 520 struct acpi_buffer ret; /* free by caller if success */ 521 }; 522 523 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 524 525 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 526 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 527 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 528 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 529 530 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 531 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 532 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 533 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 534 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 535 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 536 537 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 538 #define OSC_SB_PAD_SUPPORT 0x00000001 539 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 540 #define OSC_SB_PR3_SUPPORT 0x00000004 541 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 542 #define OSC_SB_APEI_SUPPORT 0x00000010 543 #define OSC_SB_CPC_SUPPORT 0x00000020 544 #define OSC_SB_CPCV2_SUPPORT 0x00000040 545 #define OSC_SB_PCLPI_SUPPORT 0x00000080 546 #define OSC_SB_OSLPI_SUPPORT 0x00000100 547 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 548 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 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 #include <acpi/acpi_numa.h> 713 714 struct fwnode_handle; 715 716 static inline bool acpi_dev_found(const char *hid) 717 { 718 return false; 719 } 720 721 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 722 { 723 return false; 724 } 725 726 struct acpi_device; 727 728 static inline bool 729 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 730 { 731 return false; 732 } 733 734 static inline struct acpi_device * 735 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 736 { 737 return NULL; 738 } 739 740 static inline void acpi_dev_put(struct acpi_device *adev) {} 741 742 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 743 { 744 return false; 745 } 746 747 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 748 { 749 return false; 750 } 751 752 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 753 { 754 return NULL; 755 } 756 757 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 758 { 759 return false; 760 } 761 762 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 763 { 764 return NULL; 765 } 766 767 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 768 const char *name) 769 { 770 return false; 771 } 772 773 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 774 { 775 return NULL; 776 } 777 778 static inline bool has_acpi_companion(struct device *dev) 779 { 780 return false; 781 } 782 783 static inline void acpi_preset_companion(struct device *dev, 784 struct acpi_device *parent, u64 addr) 785 { 786 } 787 788 static inline const char *acpi_dev_name(struct acpi_device *adev) 789 { 790 return NULL; 791 } 792 793 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 794 { 795 return NULL; 796 } 797 798 static inline void acpi_early_init(void) { } 799 static inline void acpi_subsystem_init(void) { } 800 801 static inline int early_acpi_boot_init(void) 802 { 803 return 0; 804 } 805 static inline int acpi_boot_init(void) 806 { 807 return 0; 808 } 809 810 static inline void acpi_boot_table_init(void) 811 { 812 return; 813 } 814 815 static inline int acpi_mps_check(void) 816 { 817 return 0; 818 } 819 820 static inline int acpi_check_resource_conflict(struct resource *res) 821 { 822 return 0; 823 } 824 825 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 826 const char *name) 827 { 828 return 0; 829 } 830 831 struct acpi_table_header; 832 static inline int acpi_table_parse(char *id, 833 int (*handler)(struct acpi_table_header *)) 834 { 835 return -ENODEV; 836 } 837 838 static inline int acpi_nvs_register(__u64 start, __u64 size) 839 { 840 return 0; 841 } 842 843 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 844 void *data) 845 { 846 return 0; 847 } 848 849 struct acpi_device_id; 850 851 static inline const struct acpi_device_id *acpi_match_device( 852 const struct acpi_device_id *ids, const struct device *dev) 853 { 854 return NULL; 855 } 856 857 static inline const void *acpi_device_get_match_data(const struct device *dev) 858 { 859 return NULL; 860 } 861 862 static inline bool acpi_driver_match_device(struct device *dev, 863 const struct device_driver *drv) 864 { 865 return false; 866 } 867 868 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 869 const guid_t *guid, 870 u64 rev, u64 func, 871 union acpi_object *argv4) 872 { 873 return NULL; 874 } 875 876 static inline int acpi_device_uevent_modalias(struct device *dev, 877 struct kobj_uevent_env *env) 878 { 879 return -ENODEV; 880 } 881 882 static inline int acpi_device_modalias(struct device *dev, 883 char *buf, int size) 884 { 885 return -ENODEV; 886 } 887 888 static inline bool acpi_dma_supported(struct acpi_device *adev) 889 { 890 return false; 891 } 892 893 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 894 { 895 return DEV_DMA_NOT_SUPPORTED; 896 } 897 898 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 899 u64 *offset, u64 *size) 900 { 901 return -ENODEV; 902 } 903 904 static inline int acpi_dma_configure(struct device *dev, 905 enum dev_dma_attr attr) 906 { 907 return 0; 908 } 909 910 static inline int acpi_dma_configure_id(struct device *dev, 911 enum dev_dma_attr attr, 912 const u32 *input_id) 913 { 914 return 0; 915 } 916 917 #define ACPI_PTR(_ptr) (NULL) 918 919 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 920 { 921 } 922 923 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 924 { 925 } 926 927 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 928 { 929 return -EINVAL; 930 } 931 932 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 933 { 934 return -EINVAL; 935 } 936 937 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 938 { 939 return NULL; 940 } 941 942 #endif /* !CONFIG_ACPI */ 943 944 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 945 int acpi_ioapic_add(acpi_handle root); 946 #else 947 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 948 #endif 949 950 #ifdef CONFIG_ACPI 951 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 952 u32 pm1a_ctrl, u32 pm1b_ctrl)); 953 954 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 955 u32 pm1a_control, u32 pm1b_control); 956 957 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 958 u32 val_a, u32 val_b)); 959 960 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 961 u32 val_a, u32 val_b); 962 963 #ifndef CONFIG_IA64 964 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 965 #else 966 static inline void arch_reserve_mem_area(acpi_physical_address addr, 967 size_t size) 968 { 969 } 970 #endif /* CONFIG_X86 */ 971 #else 972 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 973 #endif 974 975 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 976 int acpi_dev_suspend(struct device *dev, bool wakeup); 977 int acpi_dev_resume(struct device *dev); 978 int acpi_subsys_runtime_suspend(struct device *dev); 979 int acpi_subsys_runtime_resume(struct device *dev); 980 int acpi_dev_pm_attach(struct device *dev, bool power_on); 981 #else 982 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 983 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 984 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 985 { 986 return 0; 987 } 988 #endif 989 990 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 991 int acpi_subsys_prepare(struct device *dev); 992 void acpi_subsys_complete(struct device *dev); 993 int acpi_subsys_suspend_late(struct device *dev); 994 int acpi_subsys_suspend_noirq(struct device *dev); 995 int acpi_subsys_suspend(struct device *dev); 996 int acpi_subsys_freeze(struct device *dev); 997 int acpi_subsys_poweroff(struct device *dev); 998 void acpi_ec_mark_gpe_for_wake(void); 999 void acpi_ec_set_gpe_wake_mask(u8 action); 1000 #else 1001 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1002 static inline void acpi_subsys_complete(struct device *dev) {} 1003 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1004 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1005 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1006 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1007 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1008 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1009 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1010 #endif 1011 1012 #ifdef CONFIG_ACPI 1013 __printf(3, 4) 1014 void acpi_handle_printk(const char *level, acpi_handle handle, 1015 const char *fmt, ...); 1016 #else /* !CONFIG_ACPI */ 1017 static inline __printf(3, 4) void 1018 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1019 #endif /* !CONFIG_ACPI */ 1020 1021 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1022 __printf(3, 4) 1023 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1024 #endif 1025 1026 /* 1027 * acpi_handle_<level>: Print message with ACPI prefix and object path 1028 * 1029 * These interfaces acquire the global namespace mutex to obtain an object 1030 * path. In interrupt context, it shows the object path as <n/a>. 1031 */ 1032 #define acpi_handle_emerg(handle, fmt, ...) \ 1033 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1034 #define acpi_handle_alert(handle, fmt, ...) \ 1035 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1036 #define acpi_handle_crit(handle, fmt, ...) \ 1037 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1038 #define acpi_handle_err(handle, fmt, ...) \ 1039 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1040 #define acpi_handle_warn(handle, fmt, ...) \ 1041 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1042 #define acpi_handle_notice(handle, fmt, ...) \ 1043 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1044 #define acpi_handle_info(handle, fmt, ...) \ 1045 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1046 1047 #if defined(DEBUG) 1048 #define acpi_handle_debug(handle, fmt, ...) \ 1049 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1050 #else 1051 #if defined(CONFIG_DYNAMIC_DEBUG) 1052 #define acpi_handle_debug(handle, fmt, ...) \ 1053 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1054 handle, pr_fmt(fmt), ##__VA_ARGS__) 1055 #else 1056 #define acpi_handle_debug(handle, fmt, ...) \ 1057 ({ \ 1058 if (0) \ 1059 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1060 0; \ 1061 }) 1062 #endif 1063 #endif 1064 1065 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1066 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1067 struct acpi_resource_gpio **agpio); 1068 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1069 #else 1070 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1071 struct acpi_resource_gpio **agpio) 1072 { 1073 return false; 1074 } 1075 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1076 { 1077 return -ENXIO; 1078 } 1079 #endif 1080 1081 /* Device properties */ 1082 1083 #ifdef CONFIG_ACPI 1084 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1085 acpi_object_type type, const union acpi_object **obj); 1086 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1087 const char *name, size_t index, size_t num_args, 1088 struct fwnode_reference_args *args); 1089 1090 static inline int acpi_node_get_property_reference( 1091 const struct fwnode_handle *fwnode, 1092 const char *name, size_t index, 1093 struct fwnode_reference_args *args) 1094 { 1095 return __acpi_node_get_property_reference(fwnode, name, index, 1096 NR_FWNODE_REFERENCE_ARGS, args); 1097 } 1098 1099 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1100 { 1101 return !list_empty(&adev->data.properties); 1102 } 1103 1104 struct acpi_device_properties * 1105 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1106 const union acpi_object *properties); 1107 1108 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1109 void **valptr); 1110 int acpi_dev_prop_read_single(struct acpi_device *adev, 1111 const char *propname, enum dev_prop_type proptype, 1112 void *val); 1113 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1114 const char *propname, enum dev_prop_type proptype, 1115 void *val, size_t nval); 1116 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1117 enum dev_prop_type proptype, void *val, size_t nval); 1118 1119 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1120 struct fwnode_handle *child); 1121 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1122 1123 struct acpi_probe_entry; 1124 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1125 struct acpi_probe_entry *); 1126 1127 #define ACPI_TABLE_ID_LEN 5 1128 1129 /** 1130 * struct acpi_probe_entry - boot-time probing entry 1131 * @id: ACPI table name 1132 * @type: Optional subtable type to match 1133 * (if @id contains subtables) 1134 * @subtable_valid: Optional callback to check the validity of 1135 * the subtable 1136 * @probe_table: Callback to the driver being probed when table 1137 * match is successful 1138 * @probe_subtbl: Callback to the driver being probed when table and 1139 * subtable match (and optional callback is successful) 1140 * @driver_data: Sideband data provided back to the driver 1141 */ 1142 struct acpi_probe_entry { 1143 __u8 id[ACPI_TABLE_ID_LEN]; 1144 __u8 type; 1145 acpi_probe_entry_validate_subtbl subtable_valid; 1146 union { 1147 acpi_tbl_table_handler probe_table; 1148 acpi_tbl_entry_handler probe_subtbl; 1149 }; 1150 kernel_ulong_t driver_data; 1151 }; 1152 1153 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1154 valid, data, fn) \ 1155 static const struct acpi_probe_entry __acpi_probe_##name \ 1156 __used __section("__" #table "_acpi_probe_table") = { \ 1157 .id = table_id, \ 1158 .type = subtable, \ 1159 .subtable_valid = valid, \ 1160 .probe_table = fn, \ 1161 .driver_data = data, \ 1162 } 1163 1164 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1165 subtable, valid, data, fn) \ 1166 static const struct acpi_probe_entry __acpi_probe_##name \ 1167 __used __section("__" #table "_acpi_probe_table") = { \ 1168 .id = table_id, \ 1169 .type = subtable, \ 1170 .subtable_valid = valid, \ 1171 .probe_subtbl = fn, \ 1172 .driver_data = data, \ 1173 } 1174 1175 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1176 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1177 1178 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1179 1180 #define acpi_probe_device_table(t) \ 1181 ({ \ 1182 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1183 ACPI_PROBE_TABLE_END(t); \ 1184 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1185 (&ACPI_PROBE_TABLE_END(t) - \ 1186 &ACPI_PROBE_TABLE(t))); \ 1187 }) 1188 #else 1189 static inline int acpi_dev_get_property(struct acpi_device *adev, 1190 const char *name, acpi_object_type type, 1191 const union acpi_object **obj) 1192 { 1193 return -ENXIO; 1194 } 1195 1196 static inline int 1197 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1198 const char *name, size_t index, size_t num_args, 1199 struct fwnode_reference_args *args) 1200 { 1201 return -ENXIO; 1202 } 1203 1204 static inline int 1205 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1206 const char *name, size_t index, 1207 struct fwnode_reference_args *args) 1208 { 1209 return -ENXIO; 1210 } 1211 1212 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1213 const char *propname, 1214 void **valptr) 1215 { 1216 return -ENXIO; 1217 } 1218 1219 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1220 const char *propname, 1221 enum dev_prop_type proptype, 1222 void *val) 1223 { 1224 return -ENXIO; 1225 } 1226 1227 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1228 const char *propname, 1229 enum dev_prop_type proptype, 1230 void *val, size_t nval) 1231 { 1232 return -ENXIO; 1233 } 1234 1235 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1236 const char *propname, 1237 enum dev_prop_type proptype, 1238 void *val, size_t nval) 1239 { 1240 return -ENXIO; 1241 } 1242 1243 static inline struct fwnode_handle * 1244 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1245 struct fwnode_handle *child) 1246 { 1247 return NULL; 1248 } 1249 1250 static inline struct fwnode_handle * 1251 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1252 { 1253 return NULL; 1254 } 1255 1256 static inline struct fwnode_handle * 1257 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1258 struct fwnode_handle *prev) 1259 { 1260 return ERR_PTR(-ENXIO); 1261 } 1262 1263 static inline int 1264 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1265 struct fwnode_handle **remote, 1266 struct fwnode_handle **port, 1267 struct fwnode_handle **endpoint) 1268 { 1269 return -ENXIO; 1270 } 1271 1272 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1273 static const void * __acpi_table_##name[] \ 1274 __attribute__((unused)) \ 1275 = { (void *) table_id, \ 1276 (void *) subtable, \ 1277 (void *) valid, \ 1278 (void *) fn, \ 1279 (void *) data } 1280 1281 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1282 #endif 1283 1284 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1285 void acpi_table_upgrade(void); 1286 #else 1287 static inline void acpi_table_upgrade(void) { } 1288 #endif 1289 1290 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1291 extern bool acpi_has_watchdog(void); 1292 #else 1293 static inline bool acpi_has_watchdog(void) { return false; } 1294 #endif 1295 1296 #ifdef CONFIG_ACPI_SPCR_TABLE 1297 extern bool qdf2400_e44_present; 1298 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1299 #else 1300 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1301 { 1302 return 0; 1303 } 1304 #endif 1305 1306 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1307 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1308 #else 1309 static inline 1310 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1311 { 1312 return -EINVAL; 1313 } 1314 #endif 1315 1316 #ifdef CONFIG_ACPI_LPIT 1317 int lpit_read_residency_count_address(u64 *address); 1318 #else 1319 static inline int lpit_read_residency_count_address(u64 *address) 1320 { 1321 return -EINVAL; 1322 } 1323 #endif 1324 1325 #ifdef CONFIG_ACPI_PPTT 1326 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1327 int find_acpi_cpu_topology(unsigned int cpu, int level); 1328 int find_acpi_cpu_topology_package(unsigned int cpu); 1329 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1330 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1331 #else 1332 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1333 { 1334 return -EINVAL; 1335 } 1336 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1337 { 1338 return -EINVAL; 1339 } 1340 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1341 { 1342 return -EINVAL; 1343 } 1344 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1345 { 1346 return -EINVAL; 1347 } 1348 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1349 { 1350 return -EINVAL; 1351 } 1352 #endif 1353 1354 #ifdef CONFIG_ACPI 1355 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1356 #else 1357 static inline int 1358 acpi_platform_notify(struct device *dev, enum kobject_action action) 1359 { 1360 return 0; 1361 } 1362 #endif 1363 1364 #endif /*_LINUX_ACPI_H*/ 1365