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