1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 6 */ 7 8 #ifndef _LINUX_ACPI_H 9 #define _LINUX_ACPI_H 10 11 #include <linux/errno.h> 12 #include <linux/ioport.h> /* for struct resource */ 13 #include <linux/irqdomain.h> 14 #include <linux/resource_ext.h> 15 #include <linux/device.h> 16 #include <linux/property.h> 17 #include <linux/uuid.h> 18 19 #ifndef _LINUX 20 #define _LINUX 21 #endif 22 #include <acpi/acpi.h> 23 24 #ifdef CONFIG_ACPI 25 26 #include <linux/list.h> 27 #include <linux/mod_devicetable.h> 28 #include <linux/dynamic_debug.h> 29 #include <linux/module.h> 30 #include <linux/mutex.h> 31 32 #include <acpi/acpi_bus.h> 33 #include <acpi/acpi_drivers.h> 34 #include <acpi/acpi_numa.h> 35 #include <acpi/acpi_io.h> 36 #include <asm/acpi.h> 37 38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 39 { 40 return adev ? adev->handle : NULL; 41 } 42 43 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 44 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 45 acpi_fwnode_handle(adev) : NULL) 46 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 47 #define ACPI_HANDLE_FWNODE(fwnode) \ 48 acpi_device_handle(to_acpi_device_node(fwnode)) 49 50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 51 { 52 struct fwnode_handle *fwnode; 53 54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 55 if (!fwnode) 56 return NULL; 57 58 fwnode_init(fwnode, &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_prepare (void); 226 void acpi_boot_table_init (void); 227 int acpi_mps_check (void); 228 int acpi_numa_init (void); 229 230 int acpi_locate_initial_tables (void); 231 void acpi_reserve_initial_tables (void); 232 void acpi_table_init_complete (void); 233 int acpi_table_init (void); 234 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 235 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 236 int entry_id, 237 acpi_tbl_entry_handler handler, 238 unsigned int max_entries); 239 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 240 struct acpi_subtable_proc *proc, int proc_num, 241 unsigned int max_entries); 242 int acpi_table_parse_madt(enum acpi_madt_type id, 243 acpi_tbl_entry_handler handler, 244 unsigned int max_entries); 245 int acpi_parse_mcfg (struct acpi_table_header *header); 246 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 247 248 /* the following numa functions are architecture-dependent */ 249 void acpi_numa_slit_init (struct acpi_table_slit *slit); 250 251 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 252 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 253 #else 254 static inline void 255 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 256 #endif 257 258 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 259 260 #ifdef CONFIG_ARM64 261 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 262 #else 263 static inline void 264 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 265 #endif 266 267 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 268 269 #ifndef PHYS_CPUID_INVALID 270 typedef u32 phys_cpuid_t; 271 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 272 #endif 273 274 static inline bool invalid_logical_cpuid(u32 cpuid) 275 { 276 return (int)cpuid < 0; 277 } 278 279 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 280 { 281 return phys_id == PHYS_CPUID_INVALID; 282 } 283 284 /* Validate the processor object's proc_id */ 285 bool acpi_duplicate_processor_id(int proc_id); 286 /* Processor _CTS control */ 287 struct acpi_processor_power; 288 289 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 290 bool acpi_processor_claim_cst_control(void); 291 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 292 struct acpi_processor_power *info); 293 #else 294 static inline bool acpi_processor_claim_cst_control(void) { return false; } 295 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 296 struct acpi_processor_power *info) 297 { 298 return -ENODEV; 299 } 300 #endif 301 302 #ifdef CONFIG_ACPI_HOTPLUG_CPU 303 /* Arch dependent functions for cpu hotplug support */ 304 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 305 int *pcpu); 306 int acpi_unmap_cpu(int cpu); 307 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 308 309 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 310 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 311 #endif 312 313 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 314 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 315 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 316 void acpi_irq_stats_init(void); 317 extern u32 acpi_irq_handled; 318 extern u32 acpi_irq_not_handled; 319 extern unsigned int acpi_sci_irq; 320 extern bool acpi_no_s5; 321 #define INVALID_ACPI_IRQ ((unsigned)-1) 322 static inline bool acpi_sci_irq_valid(void) 323 { 324 return acpi_sci_irq != INVALID_ACPI_IRQ; 325 } 326 327 extern int sbf_port; 328 extern unsigned long acpi_realmode_flags; 329 330 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 331 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 332 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 333 334 void acpi_set_irq_model(enum acpi_irq_model_id model, 335 struct fwnode_handle *fwnode); 336 337 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 338 unsigned int size, 339 struct fwnode_handle *fwnode, 340 const struct irq_domain_ops *ops, 341 void *host_data); 342 343 #ifdef CONFIG_X86_IO_APIC 344 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 345 #else 346 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 347 { 348 return -1; 349 } 350 #endif 351 /* 352 * This function undoes the effect of one call to acpi_register_gsi(). 353 * If this matches the last registration, any IRQ resources for gsi 354 * are freed. 355 */ 356 void acpi_unregister_gsi (u32 gsi); 357 358 struct pci_dev; 359 360 int acpi_pci_irq_enable (struct pci_dev *dev); 361 void acpi_penalize_isa_irq(int irq, int active); 362 bool acpi_isa_irq_available(int irq); 363 #ifdef CONFIG_PCI 364 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 365 #else 366 static inline void acpi_penalize_sci_irq(int irq, int trigger, 367 int polarity) 368 { 369 } 370 #endif 371 void acpi_pci_irq_disable (struct pci_dev *dev); 372 373 extern int ec_read(u8 addr, u8 *val); 374 extern int ec_write(u8 addr, u8 val); 375 extern int ec_transaction(u8 command, 376 const u8 *wdata, unsigned wdata_len, 377 u8 *rdata, unsigned rdata_len); 378 extern acpi_handle ec_get_handle(void); 379 380 extern bool acpi_is_pnp_device(struct acpi_device *); 381 382 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 383 384 typedef void (*wmi_notify_handler) (u32 value, void *context); 385 386 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 387 u32 method_id, 388 const struct acpi_buffer *in, 389 struct acpi_buffer *out); 390 extern acpi_status wmi_query_block(const char *guid, u8 instance, 391 struct acpi_buffer *out); 392 extern acpi_status wmi_set_block(const char *guid, u8 instance, 393 const struct acpi_buffer *in); 394 extern acpi_status wmi_install_notify_handler(const char *guid, 395 wmi_notify_handler handler, void *data); 396 extern acpi_status wmi_remove_notify_handler(const char *guid); 397 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 398 extern bool wmi_has_guid(const char *guid); 399 extern char *wmi_get_acpi_device_uid(const char *guid); 400 401 #endif /* CONFIG_ACPI_WMI */ 402 403 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 404 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 405 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 406 #define ACPI_VIDEO_BACKLIGHT 0x0008 407 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 408 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 409 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 410 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 411 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 412 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 413 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 414 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 415 416 extern char acpi_video_backlight_string[]; 417 extern long acpi_is_video_device(acpi_handle handle); 418 extern int acpi_blacklisted(void); 419 extern void acpi_osi_setup(char *str); 420 extern bool acpi_osi_is_win8(void); 421 422 #ifdef CONFIG_ACPI_NUMA 423 int acpi_map_pxm_to_node(int pxm); 424 int acpi_get_node(acpi_handle handle); 425 426 /** 427 * pxm_to_online_node - Map proximity ID to online node 428 * @pxm: ACPI proximity ID 429 * 430 * This is similar to pxm_to_node(), but always returns an online 431 * node. When the mapped node from a given proximity ID is offline, it 432 * looks up the node distance table and returns the nearest online node. 433 * 434 * ACPI device drivers, which are called after the NUMA initialization has 435 * completed in the kernel, can call this interface to obtain their device 436 * NUMA topology from ACPI tables. Such drivers do not have to deal with 437 * offline nodes. A node may be offline when SRAT memory entry does not exist, 438 * or NUMA is disabled, ex. "numa=off" on x86. 439 */ 440 static inline int pxm_to_online_node(int pxm) 441 { 442 int node = pxm_to_node(pxm); 443 444 return numa_map_to_online_node(node); 445 } 446 #else 447 static inline int pxm_to_online_node(int pxm) 448 { 449 return 0; 450 } 451 static inline int acpi_map_pxm_to_node(int pxm) 452 { 453 return 0; 454 } 455 static inline int acpi_get_node(acpi_handle handle) 456 { 457 return 0; 458 } 459 #endif 460 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 461 462 extern int pnpacpi_disabled; 463 464 #define PXM_INVAL (-1) 465 466 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 467 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 468 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 469 struct resource_win *win); 470 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 471 struct resource_win *win); 472 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 473 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 474 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 475 struct resource *res); 476 477 void acpi_dev_free_resource_list(struct list_head *list); 478 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 479 int (*preproc)(struct acpi_resource *, void *), 480 void *preproc_data); 481 int acpi_dev_get_dma_resources(struct acpi_device *adev, 482 struct list_head *list); 483 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 484 unsigned long types); 485 486 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 487 void *arg) 488 { 489 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 490 } 491 492 struct acpi_device *acpi_resource_consumer(struct resource *res); 493 494 int acpi_check_resource_conflict(const struct resource *res); 495 496 int acpi_check_region(resource_size_t start, resource_size_t n, 497 const char *name); 498 499 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 500 u32 level); 501 502 int acpi_resources_are_enforced(void); 503 504 #ifdef CONFIG_HIBERNATION 505 void __init acpi_no_s4_hw_signature(void); 506 #endif 507 508 #ifdef CONFIG_PM_SLEEP 509 void __init acpi_old_suspend_ordering(void); 510 void __init acpi_nvs_nosave(void); 511 void __init acpi_nvs_nosave_s3(void); 512 void __init acpi_sleep_no_blacklist(void); 513 #endif /* CONFIG_PM_SLEEP */ 514 515 int acpi_register_wakeup_handler( 516 int wake_irq, bool (*wakeup)(void *context), void *context); 517 void acpi_unregister_wakeup_handler( 518 bool (*wakeup)(void *context), void *context); 519 520 struct acpi_osc_context { 521 char *uuid_str; /* UUID string */ 522 int rev; 523 struct acpi_buffer cap; /* list of DWORD capabilities */ 524 struct acpi_buffer ret; /* free by caller if success */ 525 }; 526 527 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 528 529 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 530 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 531 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 532 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 533 534 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 535 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 536 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 537 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 538 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 539 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 540 541 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 542 #define OSC_SB_PAD_SUPPORT 0x00000001 543 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 544 #define OSC_SB_PR3_SUPPORT 0x00000004 545 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 546 #define OSC_SB_APEI_SUPPORT 0x00000010 547 #define OSC_SB_CPC_SUPPORT 0x00000020 548 #define OSC_SB_CPCV2_SUPPORT 0x00000040 549 #define OSC_SB_PCLPI_SUPPORT 0x00000080 550 #define OSC_SB_OSLPI_SUPPORT 0x00000100 551 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 552 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 553 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 554 555 extern bool osc_sb_apei_support_acked; 556 extern bool osc_pc_lpi_support_confirmed; 557 extern bool osc_sb_native_usb4_support_confirmed; 558 559 /* USB4 Capabilities */ 560 #define OSC_USB_USB3_TUNNELING 0x00000001 561 #define OSC_USB_DP_TUNNELING 0x00000002 562 #define OSC_USB_PCIE_TUNNELING 0x00000004 563 #define OSC_USB_XDOMAIN 0x00000008 564 565 extern u32 osc_sb_native_usb4_control; 566 567 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 568 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 569 #define OSC_PCI_ASPM_SUPPORT 0x00000002 570 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 571 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 572 #define OSC_PCI_MSI_SUPPORT 0x00000010 573 #define OSC_PCI_EDR_SUPPORT 0x00000080 574 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 575 #define OSC_PCI_SUPPORT_MASKS 0x0000019f 576 577 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 578 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 579 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 580 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 581 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 582 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 583 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 584 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 585 #define OSC_PCI_CONTROL_MASKS 0x000000bf 586 587 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 588 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 589 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 590 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 591 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 592 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 593 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 594 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 595 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 596 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 597 598 /* Enable _OST when all relevant hotplug operations are enabled */ 599 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 600 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 601 defined(CONFIG_ACPI_CONTAINER) 602 #define ACPI_HOTPLUG_OST 603 #endif 604 605 /* _OST Source Event Code (OSPM Action) */ 606 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 607 #define ACPI_OST_EC_OSPM_EJECT 0x103 608 #define ACPI_OST_EC_OSPM_INSERTION 0x200 609 610 /* _OST General Processing Status Code */ 611 #define ACPI_OST_SC_SUCCESS 0x0 612 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 613 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 614 615 /* _OST OS Shutdown Processing (0x100) Status Code */ 616 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 617 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 618 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 619 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 620 621 /* _OST Ejection Request (0x3, 0x103) Status Code */ 622 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 623 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 624 #define ACPI_OST_SC_DEVICE_BUSY 0x82 625 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 626 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 627 628 /* _OST Insertion Request (0x200) Status Code */ 629 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 630 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 631 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 632 633 enum acpi_predicate { 634 all_versions, 635 less_than_or_equal, 636 equal, 637 greater_than_or_equal, 638 }; 639 640 /* Table must be terminted by a NULL entry */ 641 struct acpi_platform_list { 642 char oem_id[ACPI_OEM_ID_SIZE+1]; 643 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 644 u32 oem_revision; 645 char *table; 646 enum acpi_predicate pred; 647 char *reason; 648 u32 data; 649 }; 650 int acpi_match_platform_list(const struct acpi_platform_list *plat); 651 652 extern void acpi_early_init(void); 653 extern void acpi_subsystem_init(void); 654 extern void arch_post_acpi_subsys_init(void); 655 656 extern int acpi_nvs_register(__u64 start, __u64 size); 657 658 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 659 void *data); 660 661 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 662 const struct device *dev); 663 664 const void *acpi_device_get_match_data(const struct device *dev); 665 extern bool acpi_driver_match_device(struct device *dev, 666 const struct device_driver *drv); 667 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 668 int acpi_device_modalias(struct device *, char *, int); 669 void acpi_walk_dep_device_list(acpi_handle handle); 670 671 struct platform_device *acpi_create_platform_device(struct acpi_device *, 672 struct property_entry *); 673 #define ACPI_PTR(_ptr) (_ptr) 674 675 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 676 { 677 adev->flags.visited = true; 678 } 679 680 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 681 { 682 adev->flags.visited = false; 683 } 684 685 enum acpi_reconfig_event { 686 ACPI_RECONFIG_DEVICE_ADD = 0, 687 ACPI_RECONFIG_DEVICE_REMOVE, 688 }; 689 690 int acpi_reconfig_notifier_register(struct notifier_block *nb); 691 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 692 693 #ifdef CONFIG_ACPI_GTDT 694 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 695 int acpi_gtdt_map_ppi(int type); 696 bool acpi_gtdt_c3stop(int type); 697 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 698 #endif 699 700 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 701 static inline void acpi_arch_set_root_pointer(u64 addr) 702 { 703 } 704 #endif 705 706 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 707 static inline u64 acpi_arch_get_root_pointer(void) 708 { 709 return 0; 710 } 711 #endif 712 713 #else /* !CONFIG_ACPI */ 714 715 #define acpi_disabled 1 716 717 #define ACPI_COMPANION(dev) (NULL) 718 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 719 #define ACPI_HANDLE(dev) (NULL) 720 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 721 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 722 723 #include <acpi/acpi_numa.h> 724 725 struct fwnode_handle; 726 727 static inline bool acpi_dev_found(const char *hid) 728 { 729 return false; 730 } 731 732 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 733 { 734 return false; 735 } 736 737 struct acpi_device; 738 739 static inline bool 740 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 741 { 742 return false; 743 } 744 745 static inline struct acpi_device * 746 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 747 { 748 return NULL; 749 } 750 751 static inline void acpi_dev_put(struct acpi_device *adev) {} 752 753 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 754 { 755 return false; 756 } 757 758 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 759 { 760 return false; 761 } 762 763 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 764 { 765 return NULL; 766 } 767 768 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 769 { 770 return false; 771 } 772 773 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 774 { 775 return NULL; 776 } 777 778 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 779 const char *name) 780 { 781 return false; 782 } 783 784 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 785 { 786 return NULL; 787 } 788 789 static inline bool has_acpi_companion(struct device *dev) 790 { 791 return false; 792 } 793 794 static inline void acpi_preset_companion(struct device *dev, 795 struct acpi_device *parent, u64 addr) 796 { 797 } 798 799 static inline const char *acpi_dev_name(struct acpi_device *adev) 800 { 801 return NULL; 802 } 803 804 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 805 { 806 return NULL; 807 } 808 809 static inline void acpi_early_init(void) { } 810 static inline void acpi_subsystem_init(void) { } 811 812 static inline int early_acpi_boot_init(void) 813 { 814 return 0; 815 } 816 static inline int acpi_boot_init(void) 817 { 818 return 0; 819 } 820 821 static inline void acpi_boot_table_prepare(void) 822 { 823 } 824 825 static inline void acpi_boot_table_init(void) 826 { 827 } 828 829 static inline int acpi_mps_check(void) 830 { 831 return 0; 832 } 833 834 static inline int acpi_check_resource_conflict(struct resource *res) 835 { 836 return 0; 837 } 838 839 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 840 const char *name) 841 { 842 return 0; 843 } 844 845 struct acpi_table_header; 846 static inline int acpi_table_parse(char *id, 847 int (*handler)(struct acpi_table_header *)) 848 { 849 return -ENODEV; 850 } 851 852 static inline int acpi_nvs_register(__u64 start, __u64 size) 853 { 854 return 0; 855 } 856 857 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 858 void *data) 859 { 860 return 0; 861 } 862 863 struct acpi_device_id; 864 865 static inline const struct acpi_device_id *acpi_match_device( 866 const struct acpi_device_id *ids, const struct device *dev) 867 { 868 return NULL; 869 } 870 871 static inline const void *acpi_device_get_match_data(const struct device *dev) 872 { 873 return NULL; 874 } 875 876 static inline bool acpi_driver_match_device(struct device *dev, 877 const struct device_driver *drv) 878 { 879 return false; 880 } 881 882 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 883 const guid_t *guid, 884 u64 rev, u64 func, 885 union acpi_object *argv4) 886 { 887 return NULL; 888 } 889 890 static inline int acpi_device_uevent_modalias(struct device *dev, 891 struct kobj_uevent_env *env) 892 { 893 return -ENODEV; 894 } 895 896 static inline int acpi_device_modalias(struct device *dev, 897 char *buf, int size) 898 { 899 return -ENODEV; 900 } 901 902 static inline struct platform_device * 903 acpi_create_platform_device(struct acpi_device *adev, 904 struct property_entry *properties) 905 { 906 return NULL; 907 } 908 909 static inline bool acpi_dma_supported(struct acpi_device *adev) 910 { 911 return false; 912 } 913 914 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 915 { 916 return DEV_DMA_NOT_SUPPORTED; 917 } 918 919 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 920 u64 *offset, u64 *size) 921 { 922 return -ENODEV; 923 } 924 925 static inline int acpi_dma_configure(struct device *dev, 926 enum dev_dma_attr attr) 927 { 928 return 0; 929 } 930 931 static inline int acpi_dma_configure_id(struct device *dev, 932 enum dev_dma_attr attr, 933 const u32 *input_id) 934 { 935 return 0; 936 } 937 938 #define ACPI_PTR(_ptr) (NULL) 939 940 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 941 { 942 } 943 944 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 945 { 946 } 947 948 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 949 { 950 return -EINVAL; 951 } 952 953 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 954 { 955 return -EINVAL; 956 } 957 958 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 959 { 960 return NULL; 961 } 962 963 #endif /* !CONFIG_ACPI */ 964 965 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 966 int acpi_ioapic_add(acpi_handle root); 967 #else 968 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 969 #endif 970 971 #ifdef CONFIG_ACPI 972 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 973 u32 pm1a_ctrl, u32 pm1b_ctrl)); 974 975 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 976 u32 pm1a_control, u32 pm1b_control); 977 978 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 979 u32 val_a, u32 val_b)); 980 981 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 982 u32 val_a, u32 val_b); 983 984 #ifndef CONFIG_IA64 985 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 986 #else 987 static inline void arch_reserve_mem_area(acpi_physical_address addr, 988 size_t size) 989 { 990 } 991 #endif /* CONFIG_X86 */ 992 #else 993 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 994 #endif 995 996 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 997 int acpi_dev_suspend(struct device *dev, bool wakeup); 998 int acpi_dev_resume(struct device *dev); 999 int acpi_subsys_runtime_suspend(struct device *dev); 1000 int acpi_subsys_runtime_resume(struct device *dev); 1001 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1002 #else 1003 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1004 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1005 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1006 { 1007 return 0; 1008 } 1009 #endif 1010 1011 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1012 int acpi_subsys_prepare(struct device *dev); 1013 void acpi_subsys_complete(struct device *dev); 1014 int acpi_subsys_suspend_late(struct device *dev); 1015 int acpi_subsys_suspend_noirq(struct device *dev); 1016 int acpi_subsys_suspend(struct device *dev); 1017 int acpi_subsys_freeze(struct device *dev); 1018 int acpi_subsys_poweroff(struct device *dev); 1019 void acpi_ec_mark_gpe_for_wake(void); 1020 void acpi_ec_set_gpe_wake_mask(u8 action); 1021 #else 1022 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1023 static inline void acpi_subsys_complete(struct device *dev) {} 1024 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1025 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1026 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1027 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1028 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1029 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1030 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1031 #endif 1032 1033 #ifdef CONFIG_ACPI 1034 __printf(3, 4) 1035 void acpi_handle_printk(const char *level, acpi_handle handle, 1036 const char *fmt, ...); 1037 #else /* !CONFIG_ACPI */ 1038 static inline __printf(3, 4) void 1039 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1040 #endif /* !CONFIG_ACPI */ 1041 1042 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1043 __printf(3, 4) 1044 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1045 #endif 1046 1047 /* 1048 * acpi_handle_<level>: Print message with ACPI prefix and object path 1049 * 1050 * These interfaces acquire the global namespace mutex to obtain an object 1051 * path. In interrupt context, it shows the object path as <n/a>. 1052 */ 1053 #define acpi_handle_emerg(handle, fmt, ...) \ 1054 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1055 #define acpi_handle_alert(handle, fmt, ...) \ 1056 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1057 #define acpi_handle_crit(handle, fmt, ...) \ 1058 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1059 #define acpi_handle_err(handle, fmt, ...) \ 1060 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1061 #define acpi_handle_warn(handle, fmt, ...) \ 1062 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1063 #define acpi_handle_notice(handle, fmt, ...) \ 1064 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1065 #define acpi_handle_info(handle, fmt, ...) \ 1066 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1067 1068 #if defined(DEBUG) 1069 #define acpi_handle_debug(handle, fmt, ...) \ 1070 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1071 #else 1072 #if defined(CONFIG_DYNAMIC_DEBUG) 1073 #define acpi_handle_debug(handle, fmt, ...) \ 1074 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1075 handle, pr_fmt(fmt), ##__VA_ARGS__) 1076 #else 1077 #define acpi_handle_debug(handle, fmt, ...) \ 1078 ({ \ 1079 if (0) \ 1080 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1081 0; \ 1082 }) 1083 #endif 1084 #endif 1085 1086 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1087 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1088 struct acpi_resource_gpio **agpio); 1089 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1090 #else 1091 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1092 struct acpi_resource_gpio **agpio) 1093 { 1094 return false; 1095 } 1096 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1097 const char *name, int index) 1098 { 1099 return -ENXIO; 1100 } 1101 #endif 1102 1103 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1104 { 1105 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1106 } 1107 1108 /* Device properties */ 1109 1110 #ifdef CONFIG_ACPI 1111 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1112 acpi_object_type type, const union acpi_object **obj); 1113 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1114 const char *name, size_t index, size_t num_args, 1115 struct fwnode_reference_args *args); 1116 1117 static inline int acpi_node_get_property_reference( 1118 const struct fwnode_handle *fwnode, 1119 const char *name, size_t index, 1120 struct fwnode_reference_args *args) 1121 { 1122 return __acpi_node_get_property_reference(fwnode, name, index, 1123 NR_FWNODE_REFERENCE_ARGS, args); 1124 } 1125 1126 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1127 { 1128 return !list_empty(&adev->data.properties); 1129 } 1130 1131 struct acpi_device_properties * 1132 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1133 const union acpi_object *properties); 1134 1135 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1136 void **valptr); 1137 1138 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1139 struct fwnode_handle *child); 1140 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1141 1142 struct acpi_probe_entry; 1143 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1144 struct acpi_probe_entry *); 1145 1146 #define ACPI_TABLE_ID_LEN 5 1147 1148 /** 1149 * struct acpi_probe_entry - boot-time probing entry 1150 * @id: ACPI table name 1151 * @type: Optional subtable type to match 1152 * (if @id contains subtables) 1153 * @subtable_valid: Optional callback to check the validity of 1154 * the subtable 1155 * @probe_table: Callback to the driver being probed when table 1156 * match is successful 1157 * @probe_subtbl: Callback to the driver being probed when table and 1158 * subtable match (and optional callback is successful) 1159 * @driver_data: Sideband data provided back to the driver 1160 */ 1161 struct acpi_probe_entry { 1162 __u8 id[ACPI_TABLE_ID_LEN]; 1163 __u8 type; 1164 acpi_probe_entry_validate_subtbl subtable_valid; 1165 union { 1166 acpi_tbl_table_handler probe_table; 1167 acpi_tbl_entry_handler probe_subtbl; 1168 }; 1169 kernel_ulong_t driver_data; 1170 }; 1171 1172 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1173 valid, data, fn) \ 1174 static const struct acpi_probe_entry __acpi_probe_##name \ 1175 __used __section("__" #table "_acpi_probe_table") = { \ 1176 .id = table_id, \ 1177 .type = subtable, \ 1178 .subtable_valid = valid, \ 1179 .probe_table = fn, \ 1180 .driver_data = data, \ 1181 } 1182 1183 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1184 subtable, valid, data, fn) \ 1185 static const struct acpi_probe_entry __acpi_probe_##name \ 1186 __used __section("__" #table "_acpi_probe_table") = { \ 1187 .id = table_id, \ 1188 .type = subtable, \ 1189 .subtable_valid = valid, \ 1190 .probe_subtbl = fn, \ 1191 .driver_data = data, \ 1192 } 1193 1194 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1195 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1196 1197 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1198 1199 #define acpi_probe_device_table(t) \ 1200 ({ \ 1201 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1202 ACPI_PROBE_TABLE_END(t); \ 1203 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1204 (&ACPI_PROBE_TABLE_END(t) - \ 1205 &ACPI_PROBE_TABLE(t))); \ 1206 }) 1207 #else 1208 static inline int acpi_dev_get_property(struct acpi_device *adev, 1209 const char *name, acpi_object_type type, 1210 const union acpi_object **obj) 1211 { 1212 return -ENXIO; 1213 } 1214 1215 static inline int 1216 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1217 const char *name, size_t index, size_t num_args, 1218 struct fwnode_reference_args *args) 1219 { 1220 return -ENXIO; 1221 } 1222 1223 static inline int 1224 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1225 const char *name, size_t index, 1226 struct fwnode_reference_args *args) 1227 { 1228 return -ENXIO; 1229 } 1230 1231 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1232 const char *propname, 1233 void **valptr) 1234 { 1235 return -ENXIO; 1236 } 1237 1238 static inline struct fwnode_handle * 1239 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1240 struct fwnode_handle *child) 1241 { 1242 return NULL; 1243 } 1244 1245 static inline struct fwnode_handle * 1246 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1247 { 1248 return NULL; 1249 } 1250 1251 static inline struct fwnode_handle * 1252 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1253 struct fwnode_handle *prev) 1254 { 1255 return ERR_PTR(-ENXIO); 1256 } 1257 1258 static inline int 1259 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1260 struct fwnode_handle **remote, 1261 struct fwnode_handle **port, 1262 struct fwnode_handle **endpoint) 1263 { 1264 return -ENXIO; 1265 } 1266 1267 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1268 static const void * __acpi_table_##name[] \ 1269 __attribute__((unused)) \ 1270 = { (void *) table_id, \ 1271 (void *) subtable, \ 1272 (void *) valid, \ 1273 (void *) fn, \ 1274 (void *) data } 1275 1276 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1277 #endif 1278 1279 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1280 void acpi_table_upgrade(void); 1281 #else 1282 static inline void acpi_table_upgrade(void) { } 1283 #endif 1284 1285 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1286 extern bool acpi_has_watchdog(void); 1287 #else 1288 static inline bool acpi_has_watchdog(void) { return false; } 1289 #endif 1290 1291 #ifdef CONFIG_ACPI_SPCR_TABLE 1292 extern bool qdf2400_e44_present; 1293 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1294 #else 1295 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1296 { 1297 return 0; 1298 } 1299 #endif 1300 1301 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1302 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1303 #else 1304 static inline 1305 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1306 { 1307 return -EINVAL; 1308 } 1309 #endif 1310 1311 #ifdef CONFIG_ACPI_LPIT 1312 int lpit_read_residency_count_address(u64 *address); 1313 #else 1314 static inline int lpit_read_residency_count_address(u64 *address) 1315 { 1316 return -EINVAL; 1317 } 1318 #endif 1319 1320 #ifdef CONFIG_ACPI_PPTT 1321 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1322 int find_acpi_cpu_topology(unsigned int cpu, int level); 1323 int find_acpi_cpu_topology_package(unsigned int cpu); 1324 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1325 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1326 #else 1327 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1328 { 1329 return -EINVAL; 1330 } 1331 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1332 { 1333 return -EINVAL; 1334 } 1335 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1336 { 1337 return -EINVAL; 1338 } 1339 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1340 { 1341 return -EINVAL; 1342 } 1343 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1344 { 1345 return -EINVAL; 1346 } 1347 #endif 1348 1349 #ifdef CONFIG_ACPI 1350 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1351 #else 1352 static inline int 1353 acpi_platform_notify(struct device *dev, enum kobject_action action) 1354 { 1355 return 0; 1356 } 1357 #endif 1358 1359 #endif /*_LINUX_ACPI_H*/ 1360