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