1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 5 * 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 19 */ 20 21 #ifndef _LINUX_ACPI_H 22 #define _LINUX_ACPI_H 23 24 #include <linux/errno.h> 25 #include <linux/ioport.h> /* for struct resource */ 26 #include <linux/resource_ext.h> 27 #include <linux/device.h> 28 #include <linux/property.h> 29 #include <linux/uuid.h> 30 31 #ifndef _LINUX 32 #define _LINUX 33 #endif 34 #include <acpi/acpi.h> 35 36 #ifdef CONFIG_ACPI 37 38 #include <linux/list.h> 39 #include <linux/mod_devicetable.h> 40 #include <linux/dynamic_debug.h> 41 #include <linux/module.h> 42 #include <linux/mutex.h> 43 44 #include <acpi/acpi_bus.h> 45 #include <acpi/acpi_drivers.h> 46 #include <acpi/acpi_numa.h> 47 #include <acpi/acpi_io.h> 48 #include <asm/acpi.h> 49 50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 51 { 52 return adev ? adev->handle : NULL; 53 } 54 55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 57 acpi_fwnode_handle(adev) : NULL) 58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 59 #define ACPI_HANDLE_FWNODE(fwnode) \ 60 acpi_device_handle(to_acpi_device_node(fwnode)) 61 62 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 63 { 64 struct fwnode_handle *fwnode; 65 66 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 67 if (!fwnode) 68 return NULL; 69 70 fwnode->ops = &acpi_static_fwnode_ops; 71 72 return fwnode; 73 } 74 75 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 76 { 77 if (WARN_ON(!is_acpi_static_node(fwnode))) 78 return; 79 80 kfree(fwnode); 81 } 82 83 /** 84 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 85 * the PCI-defined class-code information 86 * 87 * @_cls : the class, subclass, prog-if triple for this device 88 * @_msk : the class mask for this device 89 * 90 * This macro is used to create a struct acpi_device_id that matches a 91 * specific PCI class. The .id and .driver_data fields will be left 92 * initialized with the default value. 93 */ 94 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 95 96 static inline bool has_acpi_companion(struct device *dev) 97 { 98 return is_acpi_device_node(dev->fwnode); 99 } 100 101 static inline void acpi_preset_companion(struct device *dev, 102 struct acpi_device *parent, u64 addr) 103 { 104 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); 105 } 106 107 static inline const char *acpi_dev_name(struct acpi_device *adev) 108 { 109 return dev_name(&adev->dev); 110 } 111 112 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 113 114 enum acpi_irq_model_id { 115 ACPI_IRQ_MODEL_PIC = 0, 116 ACPI_IRQ_MODEL_IOAPIC, 117 ACPI_IRQ_MODEL_IOSAPIC, 118 ACPI_IRQ_MODEL_PLATFORM, 119 ACPI_IRQ_MODEL_GIC, 120 ACPI_IRQ_MODEL_COUNT 121 }; 122 123 extern enum acpi_irq_model_id acpi_irq_model; 124 125 enum acpi_interrupt_id { 126 ACPI_INTERRUPT_PMI = 1, 127 ACPI_INTERRUPT_INIT, 128 ACPI_INTERRUPT_CPEI, 129 ACPI_INTERRUPT_COUNT 130 }; 131 132 #define ACPI_SPACE_MEM 0 133 134 enum acpi_address_range_id { 135 ACPI_ADDRESS_RANGE_MEMORY = 1, 136 ACPI_ADDRESS_RANGE_RESERVED = 2, 137 ACPI_ADDRESS_RANGE_ACPI = 3, 138 ACPI_ADDRESS_RANGE_NVS = 4, 139 ACPI_ADDRESS_RANGE_COUNT 140 }; 141 142 143 /* Table Handlers */ 144 145 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 146 147 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, 148 const unsigned long end); 149 150 /* Debugger support */ 151 152 struct acpi_debugger_ops { 153 int (*create_thread)(acpi_osd_exec_callback function, void *context); 154 ssize_t (*write_log)(const char *msg); 155 ssize_t (*read_cmd)(char *buffer, size_t length); 156 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 157 int (*notify_command_complete)(void); 158 }; 159 160 struct acpi_debugger { 161 const struct acpi_debugger_ops *ops; 162 struct module *owner; 163 struct mutex lock; 164 }; 165 166 #ifdef CONFIG_ACPI_DEBUGGER 167 int __init acpi_debugger_init(void); 168 int acpi_register_debugger(struct module *owner, 169 const struct acpi_debugger_ops *ops); 170 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 171 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 172 ssize_t acpi_debugger_write_log(const char *msg); 173 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 174 int acpi_debugger_wait_command_ready(void); 175 int acpi_debugger_notify_command_complete(void); 176 #else 177 static inline int acpi_debugger_init(void) 178 { 179 return -ENODEV; 180 } 181 182 static inline int acpi_register_debugger(struct module *owner, 183 const struct acpi_debugger_ops *ops) 184 { 185 return -ENODEV; 186 } 187 188 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 189 { 190 } 191 192 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 193 void *context) 194 { 195 return -ENODEV; 196 } 197 198 static inline int acpi_debugger_write_log(const char *msg) 199 { 200 return -ENODEV; 201 } 202 203 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 204 { 205 return -ENODEV; 206 } 207 208 static inline int acpi_debugger_wait_command_ready(void) 209 { 210 return -ENODEV; 211 } 212 213 static inline int acpi_debugger_notify_command_complete(void) 214 { 215 return -ENODEV; 216 } 217 #endif 218 219 #define BAD_MADT_ENTRY(entry, end) ( \ 220 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 221 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 222 223 struct acpi_subtable_proc { 224 int id; 225 acpi_tbl_entry_handler handler; 226 int count; 227 }; 228 229 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 230 void __acpi_unmap_table(void __iomem *map, unsigned long size); 231 int early_acpi_boot_init(void); 232 int acpi_boot_init (void); 233 void acpi_boot_table_init (void); 234 int acpi_mps_check (void); 235 int acpi_numa_init (void); 236 237 int acpi_table_init (void); 238 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 239 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 240 int entry_id, 241 acpi_tbl_entry_handler handler, 242 unsigned int max_entries); 243 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 244 struct acpi_subtable_proc *proc, int proc_num, 245 unsigned int max_entries); 246 int acpi_table_parse_madt(enum acpi_madt_type id, 247 acpi_tbl_entry_handler handler, 248 unsigned int max_entries); 249 int acpi_parse_mcfg (struct acpi_table_header *header); 250 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 251 252 /* the following numa functions are architecture-dependent */ 253 void acpi_numa_slit_init (struct acpi_table_slit *slit); 254 255 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 256 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 257 #else 258 static inline void 259 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 260 #endif 261 262 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 263 264 #ifdef CONFIG_ARM64 265 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 266 #else 267 static inline void 268 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 269 #endif 270 271 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 272 273 #ifndef PHYS_CPUID_INVALID 274 typedef u32 phys_cpuid_t; 275 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 276 #endif 277 278 static inline bool invalid_logical_cpuid(u32 cpuid) 279 { 280 return (int)cpuid < 0; 281 } 282 283 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 284 { 285 return phys_id == PHYS_CPUID_INVALID; 286 } 287 288 /* Validate the processor object's proc_id */ 289 bool acpi_duplicate_processor_id(int proc_id); 290 291 #ifdef CONFIG_ACPI_HOTPLUG_CPU 292 /* Arch dependent functions for cpu hotplug support */ 293 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 294 int *pcpu); 295 int acpi_unmap_cpu(int cpu); 296 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 297 298 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 299 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 300 #endif 301 302 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 303 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 304 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 305 void acpi_irq_stats_init(void); 306 extern u32 acpi_irq_handled; 307 extern u32 acpi_irq_not_handled; 308 extern unsigned int acpi_sci_irq; 309 extern bool acpi_no_s5; 310 #define INVALID_ACPI_IRQ ((unsigned)-1) 311 static inline bool acpi_sci_irq_valid(void) 312 { 313 return acpi_sci_irq != INVALID_ACPI_IRQ; 314 } 315 316 extern int sbf_port; 317 extern unsigned long acpi_realmode_flags; 318 319 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 320 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 321 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 322 323 void acpi_set_irq_model(enum acpi_irq_model_id model, 324 struct fwnode_handle *fwnode); 325 326 #ifdef CONFIG_X86_IO_APIC 327 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 328 #else 329 #define acpi_get_override_irq(gsi, trigger, polarity) (-1) 330 #endif 331 /* 332 * This function undoes the effect of one call to acpi_register_gsi(). 333 * If this matches the last registration, any IRQ resources for gsi 334 * are freed. 335 */ 336 void acpi_unregister_gsi (u32 gsi); 337 338 struct pci_dev; 339 340 int acpi_pci_irq_enable (struct pci_dev *dev); 341 void acpi_penalize_isa_irq(int irq, int active); 342 bool acpi_isa_irq_available(int irq); 343 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 344 void acpi_pci_irq_disable (struct pci_dev *dev); 345 346 extern int ec_read(u8 addr, u8 *val); 347 extern int ec_write(u8 addr, u8 val); 348 extern int ec_transaction(u8 command, 349 const u8 *wdata, unsigned wdata_len, 350 u8 *rdata, unsigned rdata_len); 351 extern acpi_handle ec_get_handle(void); 352 353 extern bool acpi_is_pnp_device(struct acpi_device *); 354 355 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 356 357 typedef void (*wmi_notify_handler) (u32 value, void *context); 358 359 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 360 u32 method_id, 361 const struct acpi_buffer *in, 362 struct acpi_buffer *out); 363 extern acpi_status wmi_query_block(const char *guid, u8 instance, 364 struct acpi_buffer *out); 365 extern acpi_status wmi_set_block(const char *guid, u8 instance, 366 const struct acpi_buffer *in); 367 extern acpi_status wmi_install_notify_handler(const char *guid, 368 wmi_notify_handler handler, void *data); 369 extern acpi_status wmi_remove_notify_handler(const char *guid); 370 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 371 extern bool wmi_has_guid(const char *guid); 372 373 #endif /* CONFIG_ACPI_WMI */ 374 375 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 376 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 377 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 378 #define ACPI_VIDEO_BACKLIGHT 0x0008 379 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 380 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 381 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 382 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 383 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 384 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 385 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 386 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 387 388 extern char acpi_video_backlight_string[]; 389 extern long acpi_is_video_device(acpi_handle handle); 390 extern int acpi_blacklisted(void); 391 extern void acpi_osi_setup(char *str); 392 extern bool acpi_osi_is_win8(void); 393 394 #ifdef CONFIG_ACPI_NUMA 395 int acpi_map_pxm_to_online_node(int pxm); 396 int acpi_get_node(acpi_handle handle); 397 #else 398 static inline int acpi_map_pxm_to_online_node(int pxm) 399 { 400 return 0; 401 } 402 static inline int acpi_get_node(acpi_handle handle) 403 { 404 return 0; 405 } 406 #endif 407 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 408 409 extern int pnpacpi_disabled; 410 411 #define PXM_INVAL (-1) 412 413 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 414 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 415 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 416 struct resource_win *win); 417 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 418 struct resource_win *win); 419 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 420 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 421 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 422 struct resource *res); 423 424 void acpi_dev_free_resource_list(struct list_head *list); 425 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 426 int (*preproc)(struct acpi_resource *, void *), 427 void *preproc_data); 428 int acpi_dev_get_dma_resources(struct acpi_device *adev, 429 struct list_head *list); 430 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 431 unsigned long types); 432 433 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 434 void *arg) 435 { 436 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 437 } 438 439 struct acpi_device *acpi_resource_consumer(struct resource *res); 440 441 int acpi_check_resource_conflict(const struct resource *res); 442 443 int acpi_check_region(resource_size_t start, resource_size_t n, 444 const char *name); 445 446 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 447 u32 level); 448 449 int acpi_resources_are_enforced(void); 450 451 #ifdef CONFIG_HIBERNATION 452 void __init acpi_no_s4_hw_signature(void); 453 #endif 454 455 #ifdef CONFIG_PM_SLEEP 456 void __init acpi_old_suspend_ordering(void); 457 void __init acpi_nvs_nosave(void); 458 void __init acpi_nvs_nosave_s3(void); 459 void __init acpi_sleep_no_blacklist(void); 460 #endif /* CONFIG_PM_SLEEP */ 461 462 struct acpi_osc_context { 463 char *uuid_str; /* UUID string */ 464 int rev; 465 struct acpi_buffer cap; /* list of DWORD capabilities */ 466 struct acpi_buffer ret; /* free by caller if success */ 467 }; 468 469 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 470 471 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 472 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 473 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 474 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 475 476 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 477 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 478 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 479 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 480 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 481 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 482 483 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 484 #define OSC_SB_PAD_SUPPORT 0x00000001 485 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 486 #define OSC_SB_PR3_SUPPORT 0x00000004 487 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 488 #define OSC_SB_APEI_SUPPORT 0x00000010 489 #define OSC_SB_CPC_SUPPORT 0x00000020 490 #define OSC_SB_CPCV2_SUPPORT 0x00000040 491 #define OSC_SB_PCLPI_SUPPORT 0x00000080 492 #define OSC_SB_OSLPI_SUPPORT 0x00000100 493 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 494 495 extern bool osc_sb_apei_support_acked; 496 extern bool osc_pc_lpi_support_confirmed; 497 498 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 499 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 500 #define OSC_PCI_ASPM_SUPPORT 0x00000002 501 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 502 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 503 #define OSC_PCI_MSI_SUPPORT 0x00000010 504 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 505 506 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 507 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 508 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 509 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 510 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 511 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 512 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 513 #define OSC_PCI_CONTROL_MASKS 0x0000003f 514 515 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 516 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 517 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 518 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 519 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 520 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 521 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 522 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 523 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 524 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 525 526 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 527 u32 *mask, u32 req); 528 529 /* Enable _OST when all relevant hotplug operations are enabled */ 530 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 531 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 532 defined(CONFIG_ACPI_CONTAINER) 533 #define ACPI_HOTPLUG_OST 534 #endif 535 536 /* _OST Source Event Code (OSPM Action) */ 537 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 538 #define ACPI_OST_EC_OSPM_EJECT 0x103 539 #define ACPI_OST_EC_OSPM_INSERTION 0x200 540 541 /* _OST General Processing Status Code */ 542 #define ACPI_OST_SC_SUCCESS 0x0 543 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 544 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 545 546 /* _OST OS Shutdown Processing (0x100) Status Code */ 547 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 548 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 549 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 550 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 551 552 /* _OST Ejection Request (0x3, 0x103) Status Code */ 553 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 554 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 555 #define ACPI_OST_SC_DEVICE_BUSY 0x82 556 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 557 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 558 559 /* _OST Insertion Request (0x200) Status Code */ 560 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 561 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 562 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 563 564 enum acpi_predicate { 565 all_versions, 566 less_than_or_equal, 567 equal, 568 greater_than_or_equal, 569 }; 570 571 /* Table must be terminted by a NULL entry */ 572 struct acpi_platform_list { 573 char oem_id[ACPI_OEM_ID_SIZE+1]; 574 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 575 u32 oem_revision; 576 char *table; 577 enum acpi_predicate pred; 578 char *reason; 579 u32 data; 580 }; 581 int acpi_match_platform_list(const struct acpi_platform_list *plat); 582 583 extern void acpi_early_init(void); 584 extern void acpi_subsystem_init(void); 585 extern void arch_post_acpi_subsys_init(void); 586 587 extern int acpi_nvs_register(__u64 start, __u64 size); 588 589 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 590 void *data); 591 592 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 593 const struct device *dev); 594 595 const void *acpi_device_get_match_data(const struct device *dev); 596 extern bool acpi_driver_match_device(struct device *dev, 597 const struct device_driver *drv); 598 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 599 int acpi_device_modalias(struct device *, char *, int); 600 void acpi_walk_dep_device_list(acpi_handle handle); 601 602 struct platform_device *acpi_create_platform_device(struct acpi_device *, 603 struct property_entry *); 604 #define ACPI_PTR(_ptr) (_ptr) 605 606 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 607 { 608 adev->flags.visited = true; 609 } 610 611 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 612 { 613 adev->flags.visited = false; 614 } 615 616 enum acpi_reconfig_event { 617 ACPI_RECONFIG_DEVICE_ADD = 0, 618 ACPI_RECONFIG_DEVICE_REMOVE, 619 }; 620 621 int acpi_reconfig_notifier_register(struct notifier_block *nb); 622 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 623 624 #ifdef CONFIG_ACPI_GTDT 625 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 626 int acpi_gtdt_map_ppi(int type); 627 bool acpi_gtdt_c3stop(int type); 628 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 629 #endif 630 631 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 632 static inline u64 acpi_arch_get_root_pointer(void) 633 { 634 return 0; 635 } 636 #endif 637 638 #else /* !CONFIG_ACPI */ 639 640 #define acpi_disabled 1 641 642 #define ACPI_COMPANION(dev) (NULL) 643 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 644 #define ACPI_HANDLE(dev) (NULL) 645 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 646 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 647 648 struct fwnode_handle; 649 650 static inline bool acpi_dev_found(const char *hid) 651 { 652 return false; 653 } 654 655 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 656 { 657 return false; 658 } 659 660 static inline const char * 661 acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) 662 { 663 return NULL; 664 } 665 666 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 667 { 668 return false; 669 } 670 671 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 672 { 673 return false; 674 } 675 676 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 677 { 678 return NULL; 679 } 680 681 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 682 { 683 return false; 684 } 685 686 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 687 { 688 return NULL; 689 } 690 691 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 692 const char *name) 693 { 694 return false; 695 } 696 697 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 698 { 699 return NULL; 700 } 701 702 static inline bool has_acpi_companion(struct device *dev) 703 { 704 return false; 705 } 706 707 static inline void acpi_preset_companion(struct device *dev, 708 struct acpi_device *parent, u64 addr) 709 { 710 } 711 712 static inline const char *acpi_dev_name(struct acpi_device *adev) 713 { 714 return NULL; 715 } 716 717 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 718 { 719 return NULL; 720 } 721 722 static inline void acpi_early_init(void) { } 723 static inline void acpi_subsystem_init(void) { } 724 725 static inline int early_acpi_boot_init(void) 726 { 727 return 0; 728 } 729 static inline int acpi_boot_init(void) 730 { 731 return 0; 732 } 733 734 static inline void acpi_boot_table_init(void) 735 { 736 return; 737 } 738 739 static inline int acpi_mps_check(void) 740 { 741 return 0; 742 } 743 744 static inline int acpi_check_resource_conflict(struct resource *res) 745 { 746 return 0; 747 } 748 749 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 750 const char *name) 751 { 752 return 0; 753 } 754 755 struct acpi_table_header; 756 static inline int acpi_table_parse(char *id, 757 int (*handler)(struct acpi_table_header *)) 758 { 759 return -ENODEV; 760 } 761 762 static inline int acpi_nvs_register(__u64 start, __u64 size) 763 { 764 return 0; 765 } 766 767 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 768 void *data) 769 { 770 return 0; 771 } 772 773 struct acpi_device_id; 774 775 static inline const struct acpi_device_id *acpi_match_device( 776 const struct acpi_device_id *ids, const struct device *dev) 777 { 778 return NULL; 779 } 780 781 static inline const void *acpi_device_get_match_data(const struct device *dev) 782 { 783 return NULL; 784 } 785 786 static inline bool acpi_driver_match_device(struct device *dev, 787 const struct device_driver *drv) 788 { 789 return false; 790 } 791 792 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 793 const guid_t *guid, 794 int rev, int func, 795 union acpi_object *argv4) 796 { 797 return NULL; 798 } 799 800 static inline int acpi_device_uevent_modalias(struct device *dev, 801 struct kobj_uevent_env *env) 802 { 803 return -ENODEV; 804 } 805 806 static inline int acpi_device_modalias(struct device *dev, 807 char *buf, int size) 808 { 809 return -ENODEV; 810 } 811 812 static inline bool acpi_dma_supported(struct acpi_device *adev) 813 { 814 return false; 815 } 816 817 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 818 { 819 return DEV_DMA_NOT_SUPPORTED; 820 } 821 822 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 823 u64 *offset, u64 *size) 824 { 825 return -ENODEV; 826 } 827 828 static inline int acpi_dma_configure(struct device *dev, 829 enum dev_dma_attr attr) 830 { 831 return 0; 832 } 833 834 static inline void acpi_dma_deconfigure(struct device *dev) { } 835 836 #define ACPI_PTR(_ptr) (NULL) 837 838 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 839 { 840 } 841 842 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 843 { 844 } 845 846 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 847 { 848 return -EINVAL; 849 } 850 851 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 852 { 853 return -EINVAL; 854 } 855 856 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 857 { 858 return NULL; 859 } 860 861 #endif /* !CONFIG_ACPI */ 862 863 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 864 int acpi_ioapic_add(acpi_handle root); 865 #else 866 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 867 #endif 868 869 #ifdef CONFIG_ACPI 870 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 871 u32 pm1a_ctrl, u32 pm1b_ctrl)); 872 873 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 874 u32 pm1a_control, u32 pm1b_control); 875 876 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 877 u32 val_a, u32 val_b)); 878 879 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 880 u32 val_a, u32 val_b); 881 882 #ifdef CONFIG_X86 883 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 884 #else 885 static inline void arch_reserve_mem_area(acpi_physical_address addr, 886 size_t size) 887 { 888 } 889 #endif /* CONFIG_X86 */ 890 #else 891 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 892 #endif 893 894 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 895 int acpi_dev_suspend(struct device *dev, bool wakeup); 896 int acpi_dev_resume(struct device *dev); 897 int acpi_subsys_runtime_suspend(struct device *dev); 898 int acpi_subsys_runtime_resume(struct device *dev); 899 int acpi_dev_pm_attach(struct device *dev, bool power_on); 900 #else 901 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 902 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 903 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 904 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 905 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 906 { 907 return 0; 908 } 909 #endif 910 911 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 912 int acpi_dev_suspend_late(struct device *dev); 913 int acpi_subsys_prepare(struct device *dev); 914 void acpi_subsys_complete(struct device *dev); 915 int acpi_subsys_suspend_late(struct device *dev); 916 int acpi_subsys_suspend_noirq(struct device *dev); 917 int acpi_subsys_resume_noirq(struct device *dev); 918 int acpi_subsys_resume_early(struct device *dev); 919 int acpi_subsys_suspend(struct device *dev); 920 int acpi_subsys_freeze(struct device *dev); 921 int acpi_subsys_freeze_late(struct device *dev); 922 int acpi_subsys_freeze_noirq(struct device *dev); 923 int acpi_subsys_thaw_noirq(struct device *dev); 924 #else 925 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 926 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 927 static inline void acpi_subsys_complete(struct device *dev) {} 928 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 929 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 930 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; } 931 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 932 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 933 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 934 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; } 935 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; } 936 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; } 937 #endif 938 939 #ifdef CONFIG_ACPI 940 __printf(3, 4) 941 void acpi_handle_printk(const char *level, acpi_handle handle, 942 const char *fmt, ...); 943 #else /* !CONFIG_ACPI */ 944 static inline __printf(3, 4) void 945 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 946 #endif /* !CONFIG_ACPI */ 947 948 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 949 __printf(3, 4) 950 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 951 #else 952 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \ 953 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); 954 #endif 955 956 /* 957 * acpi_handle_<level>: Print message with ACPI prefix and object path 958 * 959 * These interfaces acquire the global namespace mutex to obtain an object 960 * path. In interrupt context, it shows the object path as <n/a>. 961 */ 962 #define acpi_handle_emerg(handle, fmt, ...) \ 963 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 964 #define acpi_handle_alert(handle, fmt, ...) \ 965 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 966 #define acpi_handle_crit(handle, fmt, ...) \ 967 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 968 #define acpi_handle_err(handle, fmt, ...) \ 969 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 970 #define acpi_handle_warn(handle, fmt, ...) \ 971 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 972 #define acpi_handle_notice(handle, fmt, ...) \ 973 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 974 #define acpi_handle_info(handle, fmt, ...) \ 975 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 976 977 #if defined(DEBUG) 978 #define acpi_handle_debug(handle, fmt, ...) \ 979 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 980 #else 981 #if defined(CONFIG_DYNAMIC_DEBUG) 982 #define acpi_handle_debug(handle, fmt, ...) \ 983 do { \ 984 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ 985 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \ 986 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \ 987 ##__VA_ARGS__); \ 988 } while (0) 989 #else 990 #define acpi_handle_debug(handle, fmt, ...) \ 991 ({ \ 992 if (0) \ 993 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 994 0; \ 995 }) 996 #endif 997 #endif 998 999 struct acpi_gpio_params { 1000 unsigned int crs_entry_index; 1001 unsigned int line_index; 1002 bool active_low; 1003 }; 1004 1005 struct acpi_gpio_mapping { 1006 const char *name; 1007 const struct acpi_gpio_params *data; 1008 unsigned int size; 1009 1010 /* Ignore IoRestriction field */ 1011 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) 1012 1013 unsigned int quirks; 1014 }; 1015 1016 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1017 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1018 const struct acpi_gpio_mapping *gpios); 1019 1020 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 1021 { 1022 if (adev) 1023 adev->driver_gpios = NULL; 1024 } 1025 1026 int devm_acpi_dev_add_driver_gpios(struct device *dev, 1027 const struct acpi_gpio_mapping *gpios); 1028 void devm_acpi_dev_remove_driver_gpios(struct device *dev); 1029 1030 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1031 struct acpi_resource_gpio **agpio); 1032 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1033 #else 1034 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1035 const struct acpi_gpio_mapping *gpios) 1036 { 1037 return -ENXIO; 1038 } 1039 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 1040 1041 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev, 1042 const struct acpi_gpio_mapping *gpios) 1043 { 1044 return -ENXIO; 1045 } 1046 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {} 1047 1048 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1049 struct acpi_resource_gpio **agpio) 1050 { 1051 return false; 1052 } 1053 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1054 { 1055 return -ENXIO; 1056 } 1057 #endif 1058 1059 /* Device properties */ 1060 1061 #ifdef CONFIG_ACPI 1062 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1063 acpi_object_type type, const union acpi_object **obj); 1064 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1065 const char *name, size_t index, size_t num_args, 1066 struct fwnode_reference_args *args); 1067 1068 static inline int acpi_node_get_property_reference( 1069 const struct fwnode_handle *fwnode, 1070 const char *name, size_t index, 1071 struct fwnode_reference_args *args) 1072 { 1073 return __acpi_node_get_property_reference(fwnode, name, index, 1074 NR_FWNODE_REFERENCE_ARGS, args); 1075 } 1076 1077 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1078 void **valptr); 1079 int acpi_dev_prop_read_single(struct acpi_device *adev, 1080 const char *propname, enum dev_prop_type proptype, 1081 void *val); 1082 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1083 const char *propname, enum dev_prop_type proptype, 1084 void *val, size_t nval); 1085 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1086 enum dev_prop_type proptype, void *val, size_t nval); 1087 1088 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1089 struct fwnode_handle *child); 1090 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1091 1092 struct acpi_probe_entry; 1093 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1094 struct acpi_probe_entry *); 1095 1096 #define ACPI_TABLE_ID_LEN 5 1097 1098 /** 1099 * struct acpi_probe_entry - boot-time probing entry 1100 * @id: ACPI table name 1101 * @type: Optional subtable type to match 1102 * (if @id contains subtables) 1103 * @subtable_valid: Optional callback to check the validity of 1104 * the subtable 1105 * @probe_table: Callback to the driver being probed when table 1106 * match is successful 1107 * @probe_subtbl: Callback to the driver being probed when table and 1108 * subtable match (and optional callback is successful) 1109 * @driver_data: Sideband data provided back to the driver 1110 */ 1111 struct acpi_probe_entry { 1112 __u8 id[ACPI_TABLE_ID_LEN]; 1113 __u8 type; 1114 acpi_probe_entry_validate_subtbl subtable_valid; 1115 union { 1116 acpi_tbl_table_handler probe_table; 1117 acpi_tbl_entry_handler probe_subtbl; 1118 }; 1119 kernel_ulong_t driver_data; 1120 }; 1121 1122 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1123 static const struct acpi_probe_entry __acpi_probe_##name \ 1124 __used __section(__##table##_acpi_probe_table) \ 1125 = { \ 1126 .id = table_id, \ 1127 .type = subtable, \ 1128 .subtable_valid = valid, \ 1129 .probe_table = (acpi_tbl_table_handler)fn, \ 1130 .driver_data = data, \ 1131 } 1132 1133 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1134 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1135 1136 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1137 1138 #define acpi_probe_device_table(t) \ 1139 ({ \ 1140 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1141 ACPI_PROBE_TABLE_END(t); \ 1142 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1143 (&ACPI_PROBE_TABLE_END(t) - \ 1144 &ACPI_PROBE_TABLE(t))); \ 1145 }) 1146 #else 1147 static inline int acpi_dev_get_property(struct acpi_device *adev, 1148 const char *name, acpi_object_type type, 1149 const union acpi_object **obj) 1150 { 1151 return -ENXIO; 1152 } 1153 1154 static inline int 1155 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1156 const char *name, size_t index, size_t num_args, 1157 struct fwnode_reference_args *args) 1158 { 1159 return -ENXIO; 1160 } 1161 1162 static inline int 1163 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1164 const char *name, size_t index, 1165 struct fwnode_reference_args *args) 1166 { 1167 return -ENXIO; 1168 } 1169 1170 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1171 const char *propname, 1172 void **valptr) 1173 { 1174 return -ENXIO; 1175 } 1176 1177 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1178 const char *propname, 1179 void **valptr) 1180 { 1181 return -ENXIO; 1182 } 1183 1184 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1185 const char *propname, 1186 enum dev_prop_type proptype, 1187 void *val) 1188 { 1189 return -ENXIO; 1190 } 1191 1192 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1193 const char *propname, 1194 enum dev_prop_type proptype, 1195 void *val, size_t nval) 1196 { 1197 return -ENXIO; 1198 } 1199 1200 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1201 const char *propname, 1202 enum dev_prop_type proptype, 1203 void *val, size_t nval) 1204 { 1205 return -ENXIO; 1206 } 1207 1208 static inline struct fwnode_handle * 1209 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1210 struct fwnode_handle *child) 1211 { 1212 return NULL; 1213 } 1214 1215 static inline struct fwnode_handle * 1216 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1217 { 1218 return NULL; 1219 } 1220 1221 static inline struct fwnode_handle * 1222 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1223 struct fwnode_handle *prev) 1224 { 1225 return ERR_PTR(-ENXIO); 1226 } 1227 1228 static inline int 1229 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1230 struct fwnode_handle **remote, 1231 struct fwnode_handle **port, 1232 struct fwnode_handle **endpoint) 1233 { 1234 return -ENXIO; 1235 } 1236 1237 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1238 static const void * __acpi_table_##name[] \ 1239 __attribute__((unused)) \ 1240 = { (void *) table_id, \ 1241 (void *) subtable, \ 1242 (void *) valid, \ 1243 (void *) fn, \ 1244 (void *) data } 1245 1246 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1247 #endif 1248 1249 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1250 void acpi_table_upgrade(void); 1251 #else 1252 static inline void acpi_table_upgrade(void) { } 1253 #endif 1254 1255 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1256 extern bool acpi_has_watchdog(void); 1257 #else 1258 static inline bool acpi_has_watchdog(void) { return false; } 1259 #endif 1260 1261 #ifdef CONFIG_ACPI_SPCR_TABLE 1262 extern bool qdf2400_e44_present; 1263 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1264 #else 1265 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1266 { 1267 return 0; 1268 } 1269 #endif 1270 1271 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1272 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1273 #else 1274 static inline 1275 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1276 { 1277 return -EINVAL; 1278 } 1279 #endif 1280 1281 #ifdef CONFIG_ACPI_LPIT 1282 int lpit_read_residency_count_address(u64 *address); 1283 #else 1284 static inline int lpit_read_residency_count_address(u64 *address) 1285 { 1286 return -EINVAL; 1287 } 1288 #endif 1289 1290 #ifdef CONFIG_ACPI_PPTT 1291 int find_acpi_cpu_topology(unsigned int cpu, int level); 1292 int find_acpi_cpu_topology_package(unsigned int cpu); 1293 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1294 #else 1295 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1296 { 1297 return -EINVAL; 1298 } 1299 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1300 { 1301 return -EINVAL; 1302 } 1303 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1304 { 1305 return -EINVAL; 1306 } 1307 #endif 1308 1309 #endif /*_LINUX_ACPI_H*/ 1310