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 struct acpi_prmt_module_header prmt; 136 struct acpi_cedt_header cedt; 137 }; 138 139 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 140 141 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 142 const unsigned long end); 143 144 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 145 void *arg, const unsigned long end); 146 147 /* Debugger support */ 148 149 struct acpi_debugger_ops { 150 int (*create_thread)(acpi_osd_exec_callback function, void *context); 151 ssize_t (*write_log)(const char *msg); 152 ssize_t (*read_cmd)(char *buffer, size_t length); 153 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 154 int (*notify_command_complete)(void); 155 }; 156 157 struct acpi_debugger { 158 const struct acpi_debugger_ops *ops; 159 struct module *owner; 160 struct mutex lock; 161 }; 162 163 #ifdef CONFIG_ACPI_DEBUGGER 164 int __init acpi_debugger_init(void); 165 int acpi_register_debugger(struct module *owner, 166 const struct acpi_debugger_ops *ops); 167 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 168 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 169 ssize_t acpi_debugger_write_log(const char *msg); 170 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 171 int acpi_debugger_wait_command_ready(void); 172 int acpi_debugger_notify_command_complete(void); 173 #else 174 static inline int acpi_debugger_init(void) 175 { 176 return -ENODEV; 177 } 178 179 static inline int acpi_register_debugger(struct module *owner, 180 const struct acpi_debugger_ops *ops) 181 { 182 return -ENODEV; 183 } 184 185 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 186 { 187 } 188 189 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 190 void *context) 191 { 192 return -ENODEV; 193 } 194 195 static inline int acpi_debugger_write_log(const char *msg) 196 { 197 return -ENODEV; 198 } 199 200 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 201 { 202 return -ENODEV; 203 } 204 205 static inline int acpi_debugger_wait_command_ready(void) 206 { 207 return -ENODEV; 208 } 209 210 static inline int acpi_debugger_notify_command_complete(void) 211 { 212 return -ENODEV; 213 } 214 #endif 215 216 #define BAD_MADT_ENTRY(entry, end) ( \ 217 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 218 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 219 220 struct acpi_subtable_proc { 221 int id; 222 acpi_tbl_entry_handler handler; 223 acpi_tbl_entry_handler_arg handler_arg; 224 void *arg; 225 int count; 226 }; 227 228 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 229 void __acpi_unmap_table(void __iomem *map, unsigned long size); 230 int early_acpi_boot_init(void); 231 int acpi_boot_init (void); 232 void acpi_boot_table_prepare (void); 233 void acpi_boot_table_init (void); 234 int acpi_mps_check (void); 235 int acpi_numa_init (void); 236 237 int acpi_locate_initial_tables (void); 238 void acpi_reserve_initial_tables (void); 239 void acpi_table_init_complete (void); 240 int acpi_table_init (void); 241 242 #ifdef CONFIG_ACPI_TABLE_LIB 243 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 244 #define __init_or_acpilib 245 #define __initdata_or_acpilib 246 #else 247 #define EXPORT_SYMBOL_ACPI_LIB(x) 248 #define __init_or_acpilib __init 249 #define __initdata_or_acpilib __initdata 250 #endif 251 252 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 253 int __init_or_acpilib acpi_table_parse_entries(char *id, 254 unsigned long table_size, int entry_id, 255 acpi_tbl_entry_handler handler, unsigned int max_entries); 256 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 257 unsigned long table_size, struct acpi_subtable_proc *proc, 258 int proc_num, unsigned int max_entries); 259 int acpi_table_parse_madt(enum acpi_madt_type id, 260 acpi_tbl_entry_handler handler, 261 unsigned int max_entries); 262 int __init_or_acpilib 263 acpi_table_parse_cedt(enum acpi_cedt_type id, 264 acpi_tbl_entry_handler_arg handler_arg, void *arg); 265 266 int acpi_parse_mcfg (struct acpi_table_header *header); 267 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 268 269 /* the following numa functions are architecture-dependent */ 270 void acpi_numa_slit_init (struct acpi_table_slit *slit); 271 272 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 273 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 274 #else 275 static inline void 276 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 277 #endif 278 279 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 280 281 #ifdef CONFIG_ARM64 282 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 283 void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size); 284 #else 285 static inline void 286 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 287 static inline void 288 acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { } 289 #endif 290 291 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 292 293 #ifndef PHYS_CPUID_INVALID 294 typedef u32 phys_cpuid_t; 295 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 296 #endif 297 298 static inline bool invalid_logical_cpuid(u32 cpuid) 299 { 300 return (int)cpuid < 0; 301 } 302 303 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 304 { 305 return phys_id == PHYS_CPUID_INVALID; 306 } 307 308 /* Validate the processor object's proc_id */ 309 bool acpi_duplicate_processor_id(int proc_id); 310 /* Processor _CTS control */ 311 struct acpi_processor_power; 312 313 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 314 bool acpi_processor_claim_cst_control(void); 315 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 316 struct acpi_processor_power *info); 317 #else 318 static inline bool acpi_processor_claim_cst_control(void) { return false; } 319 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 320 struct acpi_processor_power *info) 321 { 322 return -ENODEV; 323 } 324 #endif 325 326 #ifdef CONFIG_ACPI_HOTPLUG_CPU 327 /* Arch dependent functions for cpu hotplug support */ 328 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 329 int *pcpu); 330 int acpi_unmap_cpu(int cpu); 331 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 332 333 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 334 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 335 #endif 336 337 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 338 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 339 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 340 void acpi_irq_stats_init(void); 341 extern u32 acpi_irq_handled; 342 extern u32 acpi_irq_not_handled; 343 extern unsigned int acpi_sci_irq; 344 extern bool acpi_no_s5; 345 #define INVALID_ACPI_IRQ ((unsigned)-1) 346 static inline bool acpi_sci_irq_valid(void) 347 { 348 return acpi_sci_irq != INVALID_ACPI_IRQ; 349 } 350 351 extern int sbf_port; 352 extern unsigned long acpi_realmode_flags; 353 354 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 355 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 356 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 357 358 void acpi_set_irq_model(enum acpi_irq_model_id model, 359 struct fwnode_handle *fwnode); 360 361 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 362 unsigned int size, 363 struct fwnode_handle *fwnode, 364 const struct irq_domain_ops *ops, 365 void *host_data); 366 367 #ifdef CONFIG_X86_IO_APIC 368 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 369 #else 370 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 371 { 372 return -1; 373 } 374 #endif 375 /* 376 * This function undoes the effect of one call to acpi_register_gsi(). 377 * If this matches the last registration, any IRQ resources for gsi 378 * are freed. 379 */ 380 void acpi_unregister_gsi (u32 gsi); 381 382 struct pci_dev; 383 384 int acpi_pci_irq_enable (struct pci_dev *dev); 385 void acpi_penalize_isa_irq(int irq, int active); 386 bool acpi_isa_irq_available(int irq); 387 #ifdef CONFIG_PCI 388 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 389 #else 390 static inline void acpi_penalize_sci_irq(int irq, int trigger, 391 int polarity) 392 { 393 } 394 #endif 395 void acpi_pci_irq_disable (struct pci_dev *dev); 396 397 extern int ec_read(u8 addr, u8 *val); 398 extern int ec_write(u8 addr, u8 val); 399 extern int ec_transaction(u8 command, 400 const u8 *wdata, unsigned wdata_len, 401 u8 *rdata, unsigned rdata_len); 402 extern acpi_handle ec_get_handle(void); 403 404 extern bool acpi_is_pnp_device(struct acpi_device *); 405 406 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 407 408 typedef void (*wmi_notify_handler) (u32 value, void *context); 409 410 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 411 u32 method_id, 412 const struct acpi_buffer *in, 413 struct acpi_buffer *out); 414 extern acpi_status wmi_query_block(const char *guid, u8 instance, 415 struct acpi_buffer *out); 416 extern acpi_status wmi_set_block(const char *guid, u8 instance, 417 const struct acpi_buffer *in); 418 extern acpi_status wmi_install_notify_handler(const char *guid, 419 wmi_notify_handler handler, void *data); 420 extern acpi_status wmi_remove_notify_handler(const char *guid); 421 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 422 extern bool wmi_has_guid(const char *guid); 423 extern char *wmi_get_acpi_device_uid(const char *guid); 424 425 #endif /* CONFIG_ACPI_WMI */ 426 427 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 428 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 429 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 430 #define ACPI_VIDEO_BACKLIGHT 0x0008 431 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 432 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 433 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 434 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 435 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 436 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 437 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 438 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 439 440 extern char acpi_video_backlight_string[]; 441 extern long acpi_is_video_device(acpi_handle handle); 442 extern int acpi_blacklisted(void); 443 extern void acpi_osi_setup(char *str); 444 extern bool acpi_osi_is_win8(void); 445 446 #ifdef CONFIG_ACPI_NUMA 447 int acpi_map_pxm_to_node(int pxm); 448 int acpi_get_node(acpi_handle handle); 449 450 /** 451 * pxm_to_online_node - Map proximity ID to online node 452 * @pxm: ACPI proximity ID 453 * 454 * This is similar to pxm_to_node(), but always returns an online 455 * node. When the mapped node from a given proximity ID is offline, it 456 * looks up the node distance table and returns the nearest online node. 457 * 458 * ACPI device drivers, which are called after the NUMA initialization has 459 * completed in the kernel, can call this interface to obtain their device 460 * NUMA topology from ACPI tables. Such drivers do not have to deal with 461 * offline nodes. A node may be offline when SRAT memory entry does not exist, 462 * or NUMA is disabled, ex. "numa=off" on x86. 463 */ 464 static inline int pxm_to_online_node(int pxm) 465 { 466 int node = pxm_to_node(pxm); 467 468 return numa_map_to_online_node(node); 469 } 470 #else 471 static inline int pxm_to_online_node(int pxm) 472 { 473 return 0; 474 } 475 static inline int acpi_map_pxm_to_node(int pxm) 476 { 477 return 0; 478 } 479 static inline int acpi_get_node(acpi_handle handle) 480 { 481 return 0; 482 } 483 #endif 484 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 485 486 extern int pnpacpi_disabled; 487 488 #define PXM_INVAL (-1) 489 490 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 491 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 492 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 493 struct resource_win *win); 494 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 495 struct resource_win *win); 496 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 497 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 498 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 499 struct resource *res); 500 501 void acpi_dev_free_resource_list(struct list_head *list); 502 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 503 int (*preproc)(struct acpi_resource *, void *), 504 void *preproc_data); 505 int acpi_dev_get_dma_resources(struct acpi_device *adev, 506 struct list_head *list); 507 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 508 unsigned long types); 509 510 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 511 void *arg) 512 { 513 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 514 } 515 516 struct acpi_device *acpi_resource_consumer(struct resource *res); 517 518 int acpi_check_resource_conflict(const struct resource *res); 519 520 int acpi_check_region(resource_size_t start, resource_size_t n, 521 const char *name); 522 523 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 524 u32 level); 525 526 int acpi_resources_are_enforced(void); 527 528 #ifdef CONFIG_HIBERNATION 529 void __init acpi_check_s4_hw_signature(int check); 530 #endif 531 532 #ifdef CONFIG_PM_SLEEP 533 void __init acpi_old_suspend_ordering(void); 534 void __init acpi_nvs_nosave(void); 535 void __init acpi_nvs_nosave_s3(void); 536 void __init acpi_sleep_no_blacklist(void); 537 #endif /* CONFIG_PM_SLEEP */ 538 539 int acpi_register_wakeup_handler( 540 int wake_irq, bool (*wakeup)(void *context), void *context); 541 void acpi_unregister_wakeup_handler( 542 bool (*wakeup)(void *context), void *context); 543 544 struct acpi_osc_context { 545 char *uuid_str; /* UUID string */ 546 int rev; 547 struct acpi_buffer cap; /* list of DWORD capabilities */ 548 struct acpi_buffer ret; /* free by caller if success */ 549 }; 550 551 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 552 553 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 554 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 555 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 556 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 557 558 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 559 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 560 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 561 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 562 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 563 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 564 565 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 566 #define OSC_SB_PAD_SUPPORT 0x00000001 567 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 568 #define OSC_SB_PR3_SUPPORT 0x00000004 569 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 570 #define OSC_SB_APEI_SUPPORT 0x00000010 571 #define OSC_SB_CPC_SUPPORT 0x00000020 572 #define OSC_SB_CPCV2_SUPPORT 0x00000040 573 #define OSC_SB_PCLPI_SUPPORT 0x00000080 574 #define OSC_SB_OSLPI_SUPPORT 0x00000100 575 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 576 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 577 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 578 #define OSC_SB_PRM_SUPPORT 0x00200000 579 580 extern bool osc_sb_apei_support_acked; 581 extern bool osc_pc_lpi_support_confirmed; 582 extern bool osc_sb_native_usb4_support_confirmed; 583 584 /* USB4 Capabilities */ 585 #define OSC_USB_USB3_TUNNELING 0x00000001 586 #define OSC_USB_DP_TUNNELING 0x00000002 587 #define OSC_USB_PCIE_TUNNELING 0x00000004 588 #define OSC_USB_XDOMAIN 0x00000008 589 590 extern u32 osc_sb_native_usb4_control; 591 592 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 593 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 594 #define OSC_PCI_ASPM_SUPPORT 0x00000002 595 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 596 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 597 #define OSC_PCI_MSI_SUPPORT 0x00000010 598 #define OSC_PCI_EDR_SUPPORT 0x00000080 599 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 600 601 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 602 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 603 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 604 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 605 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 606 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 607 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 608 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 609 610 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 611 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 612 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 613 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 614 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 615 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 616 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 617 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 618 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 619 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 620 621 /* Enable _OST when all relevant hotplug operations are enabled */ 622 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 623 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 624 defined(CONFIG_ACPI_CONTAINER) 625 #define ACPI_HOTPLUG_OST 626 #endif 627 628 /* _OST Source Event Code (OSPM Action) */ 629 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 630 #define ACPI_OST_EC_OSPM_EJECT 0x103 631 #define ACPI_OST_EC_OSPM_INSERTION 0x200 632 633 /* _OST General Processing Status Code */ 634 #define ACPI_OST_SC_SUCCESS 0x0 635 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 636 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 637 638 /* _OST OS Shutdown Processing (0x100) Status Code */ 639 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 640 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 641 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 642 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 643 644 /* _OST Ejection Request (0x3, 0x103) Status Code */ 645 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 646 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 647 #define ACPI_OST_SC_DEVICE_BUSY 0x82 648 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 649 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 650 651 /* _OST Insertion Request (0x200) Status Code */ 652 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 653 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 654 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 655 656 enum acpi_predicate { 657 all_versions, 658 less_than_or_equal, 659 equal, 660 greater_than_or_equal, 661 }; 662 663 /* Table must be terminted by a NULL entry */ 664 struct acpi_platform_list { 665 char oem_id[ACPI_OEM_ID_SIZE+1]; 666 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 667 u32 oem_revision; 668 char *table; 669 enum acpi_predicate pred; 670 char *reason; 671 u32 data; 672 }; 673 int acpi_match_platform_list(const struct acpi_platform_list *plat); 674 675 extern void acpi_early_init(void); 676 extern void acpi_subsystem_init(void); 677 extern void arch_post_acpi_subsys_init(void); 678 679 extern int acpi_nvs_register(__u64 start, __u64 size); 680 681 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 682 void *data); 683 684 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 685 const struct device *dev); 686 687 const void *acpi_device_get_match_data(const struct device *dev); 688 extern bool acpi_driver_match_device(struct device *dev, 689 const struct device_driver *drv); 690 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 691 int acpi_device_modalias(struct device *, char *, int); 692 693 struct platform_device *acpi_create_platform_device(struct acpi_device *, 694 struct property_entry *); 695 #define ACPI_PTR(_ptr) (_ptr) 696 697 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 698 { 699 adev->flags.visited = true; 700 } 701 702 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 703 { 704 adev->flags.visited = false; 705 } 706 707 enum acpi_reconfig_event { 708 ACPI_RECONFIG_DEVICE_ADD = 0, 709 ACPI_RECONFIG_DEVICE_REMOVE, 710 }; 711 712 int acpi_reconfig_notifier_register(struct notifier_block *nb); 713 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 714 715 #ifdef CONFIG_ACPI_GTDT 716 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 717 int acpi_gtdt_map_ppi(int type); 718 bool acpi_gtdt_c3stop(int type); 719 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 720 #endif 721 722 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 723 static inline void acpi_arch_set_root_pointer(u64 addr) 724 { 725 } 726 #endif 727 728 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 729 static inline u64 acpi_arch_get_root_pointer(void) 730 { 731 return 0; 732 } 733 #endif 734 735 int acpi_get_local_address(acpi_handle handle, u32 *addr); 736 737 #else /* !CONFIG_ACPI */ 738 739 #define acpi_disabled 1 740 741 #define ACPI_COMPANION(dev) (NULL) 742 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 743 #define ACPI_HANDLE(dev) (NULL) 744 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 745 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 746 747 #include <acpi/acpi_numa.h> 748 749 struct fwnode_handle; 750 751 static inline bool acpi_dev_found(const char *hid) 752 { 753 return false; 754 } 755 756 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 757 { 758 return false; 759 } 760 761 struct acpi_device; 762 763 static inline bool 764 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 765 { 766 return false; 767 } 768 769 static inline struct acpi_device * 770 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 771 { 772 return NULL; 773 } 774 775 static inline bool acpi_reduced_hardware(void) 776 { 777 return false; 778 } 779 780 static inline void acpi_dev_put(struct acpi_device *adev) {} 781 782 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 783 { 784 return false; 785 } 786 787 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 788 { 789 return false; 790 } 791 792 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 793 { 794 return NULL; 795 } 796 797 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 798 { 799 return false; 800 } 801 802 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 803 { 804 return NULL; 805 } 806 807 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 808 const char *name) 809 { 810 return false; 811 } 812 813 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 814 { 815 return NULL; 816 } 817 818 static inline bool has_acpi_companion(struct device *dev) 819 { 820 return false; 821 } 822 823 static inline void acpi_preset_companion(struct device *dev, 824 struct acpi_device *parent, u64 addr) 825 { 826 } 827 828 static inline const char *acpi_dev_name(struct acpi_device *adev) 829 { 830 return NULL; 831 } 832 833 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 834 { 835 return NULL; 836 } 837 838 static inline void acpi_early_init(void) { } 839 static inline void acpi_subsystem_init(void) { } 840 841 static inline int early_acpi_boot_init(void) 842 { 843 return 0; 844 } 845 static inline int acpi_boot_init(void) 846 { 847 return 0; 848 } 849 850 static inline void acpi_boot_table_prepare(void) 851 { 852 } 853 854 static inline void acpi_boot_table_init(void) 855 { 856 } 857 858 static inline int acpi_mps_check(void) 859 { 860 return 0; 861 } 862 863 static inline int acpi_check_resource_conflict(struct resource *res) 864 { 865 return 0; 866 } 867 868 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 869 const char *name) 870 { 871 return 0; 872 } 873 874 struct acpi_table_header; 875 static inline int acpi_table_parse(char *id, 876 int (*handler)(struct acpi_table_header *)) 877 { 878 return -ENODEV; 879 } 880 881 static inline int acpi_nvs_register(__u64 start, __u64 size) 882 { 883 return 0; 884 } 885 886 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 887 void *data) 888 { 889 return 0; 890 } 891 892 struct acpi_device_id; 893 894 static inline const struct acpi_device_id *acpi_match_device( 895 const struct acpi_device_id *ids, const struct device *dev) 896 { 897 return NULL; 898 } 899 900 static inline const void *acpi_device_get_match_data(const struct device *dev) 901 { 902 return NULL; 903 } 904 905 static inline bool acpi_driver_match_device(struct device *dev, 906 const struct device_driver *drv) 907 { 908 return false; 909 } 910 911 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 912 const guid_t *guid, 913 u64 rev, u64 func, 914 union acpi_object *argv4) 915 { 916 return NULL; 917 } 918 919 static inline int acpi_device_uevent_modalias(struct device *dev, 920 struct kobj_uevent_env *env) 921 { 922 return -ENODEV; 923 } 924 925 static inline int acpi_device_modalias(struct device *dev, 926 char *buf, int size) 927 { 928 return -ENODEV; 929 } 930 931 static inline struct platform_device * 932 acpi_create_platform_device(struct acpi_device *adev, 933 struct property_entry *properties) 934 { 935 return NULL; 936 } 937 938 static inline bool acpi_dma_supported(const struct acpi_device *adev) 939 { 940 return false; 941 } 942 943 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 944 { 945 return DEV_DMA_NOT_SUPPORTED; 946 } 947 948 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 949 u64 *offset, u64 *size) 950 { 951 return -ENODEV; 952 } 953 954 static inline int acpi_dma_configure(struct device *dev, 955 enum dev_dma_attr attr) 956 { 957 return 0; 958 } 959 960 static inline int acpi_dma_configure_id(struct device *dev, 961 enum dev_dma_attr attr, 962 const u32 *input_id) 963 { 964 return 0; 965 } 966 967 #define ACPI_PTR(_ptr) (NULL) 968 969 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 970 { 971 } 972 973 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 974 { 975 } 976 977 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 978 { 979 return -EINVAL; 980 } 981 982 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 983 { 984 return -EINVAL; 985 } 986 987 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 988 { 989 return NULL; 990 } 991 992 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 993 { 994 return -ENODEV; 995 } 996 997 static inline int acpi_register_wakeup_handler(int wake_irq, 998 bool (*wakeup)(void *context), void *context) 999 { 1000 return -ENXIO; 1001 } 1002 1003 static inline void acpi_unregister_wakeup_handler( 1004 bool (*wakeup)(void *context), void *context) { } 1005 1006 #endif /* !CONFIG_ACPI */ 1007 1008 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1009 int acpi_ioapic_add(acpi_handle root); 1010 #else 1011 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1012 #endif 1013 1014 #ifdef CONFIG_ACPI 1015 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1016 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1017 1018 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1019 u32 pm1a_control, u32 pm1b_control); 1020 1021 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1022 u32 val_a, u32 val_b)); 1023 1024 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1025 u32 val_a, u32 val_b); 1026 1027 #ifndef CONFIG_IA64 1028 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1029 #else 1030 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1031 size_t size) 1032 { 1033 } 1034 #endif /* CONFIG_X86 */ 1035 #else 1036 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1037 #endif 1038 1039 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1040 int acpi_dev_suspend(struct device *dev, bool wakeup); 1041 int acpi_dev_resume(struct device *dev); 1042 int acpi_subsys_runtime_suspend(struct device *dev); 1043 int acpi_subsys_runtime_resume(struct device *dev); 1044 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1045 bool acpi_storage_d3(struct device *dev); 1046 bool acpi_dev_state_d0(struct device *dev); 1047 #else 1048 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1049 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1050 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1051 { 1052 return 0; 1053 } 1054 static inline bool acpi_storage_d3(struct device *dev) 1055 { 1056 return false; 1057 } 1058 static inline bool acpi_dev_state_d0(struct device *dev) 1059 { 1060 return true; 1061 } 1062 #endif 1063 1064 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1065 int acpi_subsys_prepare(struct device *dev); 1066 void acpi_subsys_complete(struct device *dev); 1067 int acpi_subsys_suspend_late(struct device *dev); 1068 int acpi_subsys_suspend_noirq(struct device *dev); 1069 int acpi_subsys_suspend(struct device *dev); 1070 int acpi_subsys_freeze(struct device *dev); 1071 int acpi_subsys_poweroff(struct device *dev); 1072 void acpi_ec_mark_gpe_for_wake(void); 1073 void acpi_ec_set_gpe_wake_mask(u8 action); 1074 #else 1075 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1076 static inline void acpi_subsys_complete(struct device *dev) {} 1077 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1078 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1079 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1080 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1081 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1082 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1083 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1084 #endif 1085 1086 #ifdef CONFIG_ACPI 1087 __printf(3, 4) 1088 void acpi_handle_printk(const char *level, acpi_handle handle, 1089 const char *fmt, ...); 1090 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1091 acpi_status status); 1092 #else /* !CONFIG_ACPI */ 1093 static inline __printf(3, 4) void 1094 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1095 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1096 const char *name, 1097 acpi_status status) {} 1098 #endif /* !CONFIG_ACPI */ 1099 1100 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1101 __printf(3, 4) 1102 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1103 #endif 1104 1105 /* 1106 * acpi_handle_<level>: Print message with ACPI prefix and object path 1107 * 1108 * These interfaces acquire the global namespace mutex to obtain an object 1109 * path. In interrupt context, it shows the object path as <n/a>. 1110 */ 1111 #define acpi_handle_emerg(handle, fmt, ...) \ 1112 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1113 #define acpi_handle_alert(handle, fmt, ...) \ 1114 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1115 #define acpi_handle_crit(handle, fmt, ...) \ 1116 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1117 #define acpi_handle_err(handle, fmt, ...) \ 1118 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1119 #define acpi_handle_warn(handle, fmt, ...) \ 1120 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1121 #define acpi_handle_notice(handle, fmt, ...) \ 1122 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1123 #define acpi_handle_info(handle, fmt, ...) \ 1124 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1125 1126 #if defined(DEBUG) 1127 #define acpi_handle_debug(handle, fmt, ...) \ 1128 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1129 #else 1130 #if defined(CONFIG_DYNAMIC_DEBUG) 1131 #define acpi_handle_debug(handle, fmt, ...) \ 1132 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1133 handle, pr_fmt(fmt), ##__VA_ARGS__) 1134 #else 1135 #define acpi_handle_debug(handle, fmt, ...) \ 1136 ({ \ 1137 if (0) \ 1138 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1139 0; \ 1140 }) 1141 #endif 1142 #endif 1143 1144 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1145 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1146 struct acpi_resource_gpio **agpio); 1147 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1148 struct acpi_resource_gpio **agpio); 1149 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1150 #else 1151 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1152 struct acpi_resource_gpio **agpio) 1153 { 1154 return false; 1155 } 1156 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1157 struct acpi_resource_gpio **agpio) 1158 { 1159 return false; 1160 } 1161 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1162 const char *name, int index) 1163 { 1164 return -ENXIO; 1165 } 1166 #endif 1167 1168 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1169 { 1170 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1171 } 1172 1173 /* Device properties */ 1174 1175 #ifdef CONFIG_ACPI 1176 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1177 acpi_object_type type, const union acpi_object **obj); 1178 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1179 const char *name, size_t index, size_t num_args, 1180 struct fwnode_reference_args *args); 1181 1182 static inline int acpi_node_get_property_reference( 1183 const struct fwnode_handle *fwnode, 1184 const char *name, size_t index, 1185 struct fwnode_reference_args *args) 1186 { 1187 return __acpi_node_get_property_reference(fwnode, name, index, 1188 NR_FWNODE_REFERENCE_ARGS, args); 1189 } 1190 1191 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1192 { 1193 return !list_empty(&adev->data.properties); 1194 } 1195 1196 struct acpi_device_properties * 1197 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1198 const union acpi_object *properties); 1199 1200 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1201 void **valptr); 1202 1203 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1204 struct fwnode_handle *child); 1205 1206 struct acpi_probe_entry; 1207 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1208 struct acpi_probe_entry *); 1209 1210 #define ACPI_TABLE_ID_LEN 5 1211 1212 /** 1213 * struct acpi_probe_entry - boot-time probing entry 1214 * @id: ACPI table name 1215 * @type: Optional subtable type to match 1216 * (if @id contains subtables) 1217 * @subtable_valid: Optional callback to check the validity of 1218 * the subtable 1219 * @probe_table: Callback to the driver being probed when table 1220 * match is successful 1221 * @probe_subtbl: Callback to the driver being probed when table and 1222 * subtable match (and optional callback is successful) 1223 * @driver_data: Sideband data provided back to the driver 1224 */ 1225 struct acpi_probe_entry { 1226 __u8 id[ACPI_TABLE_ID_LEN]; 1227 __u8 type; 1228 acpi_probe_entry_validate_subtbl subtable_valid; 1229 union { 1230 acpi_tbl_table_handler probe_table; 1231 acpi_tbl_entry_handler probe_subtbl; 1232 }; 1233 kernel_ulong_t driver_data; 1234 }; 1235 1236 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1237 valid, data, fn) \ 1238 static const struct acpi_probe_entry __acpi_probe_##name \ 1239 __used __section("__" #table "_acpi_probe_table") = { \ 1240 .id = table_id, \ 1241 .type = subtable, \ 1242 .subtable_valid = valid, \ 1243 .probe_table = fn, \ 1244 .driver_data = data, \ 1245 } 1246 1247 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1248 subtable, valid, data, fn) \ 1249 static const struct acpi_probe_entry __acpi_probe_##name \ 1250 __used __section("__" #table "_acpi_probe_table") = { \ 1251 .id = table_id, \ 1252 .type = subtable, \ 1253 .subtable_valid = valid, \ 1254 .probe_subtbl = fn, \ 1255 .driver_data = data, \ 1256 } 1257 1258 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1259 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1260 1261 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1262 1263 #define acpi_probe_device_table(t) \ 1264 ({ \ 1265 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1266 ACPI_PROBE_TABLE_END(t); \ 1267 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1268 (&ACPI_PROBE_TABLE_END(t) - \ 1269 &ACPI_PROBE_TABLE(t))); \ 1270 }) 1271 #else 1272 static inline int acpi_dev_get_property(struct acpi_device *adev, 1273 const char *name, acpi_object_type type, 1274 const union acpi_object **obj) 1275 { 1276 return -ENXIO; 1277 } 1278 1279 static inline int 1280 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1281 const char *name, size_t index, size_t num_args, 1282 struct fwnode_reference_args *args) 1283 { 1284 return -ENXIO; 1285 } 1286 1287 static inline int 1288 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1289 const char *name, size_t index, 1290 struct fwnode_reference_args *args) 1291 { 1292 return -ENXIO; 1293 } 1294 1295 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1296 const char *propname, 1297 void **valptr) 1298 { 1299 return -ENXIO; 1300 } 1301 1302 static inline struct fwnode_handle * 1303 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1304 struct fwnode_handle *child) 1305 { 1306 return NULL; 1307 } 1308 1309 static inline struct fwnode_handle * 1310 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1311 struct fwnode_handle *prev) 1312 { 1313 return ERR_PTR(-ENXIO); 1314 } 1315 1316 static inline int 1317 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1318 struct fwnode_handle **remote, 1319 struct fwnode_handle **port, 1320 struct fwnode_handle **endpoint) 1321 { 1322 return -ENXIO; 1323 } 1324 1325 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1326 static const void * __acpi_table_##name[] \ 1327 __attribute__((unused)) \ 1328 = { (void *) table_id, \ 1329 (void *) subtable, \ 1330 (void *) valid, \ 1331 (void *) fn, \ 1332 (void *) data } 1333 1334 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1335 #endif 1336 1337 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1338 void acpi_table_upgrade(void); 1339 #else 1340 static inline void acpi_table_upgrade(void) { } 1341 #endif 1342 1343 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1344 extern bool acpi_has_watchdog(void); 1345 #else 1346 static inline bool acpi_has_watchdog(void) { return false; } 1347 #endif 1348 1349 #ifdef CONFIG_ACPI_SPCR_TABLE 1350 extern bool qdf2400_e44_present; 1351 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1352 #else 1353 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1354 { 1355 return 0; 1356 } 1357 #endif 1358 1359 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1360 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1361 #else 1362 static inline 1363 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1364 { 1365 return -EINVAL; 1366 } 1367 #endif 1368 1369 #ifdef CONFIG_ACPI_LPIT 1370 int lpit_read_residency_count_address(u64 *address); 1371 #else 1372 static inline int lpit_read_residency_count_address(u64 *address) 1373 { 1374 return -EINVAL; 1375 } 1376 #endif 1377 1378 #ifdef CONFIG_ACPI_PPTT 1379 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1380 int find_acpi_cpu_topology(unsigned int cpu, int level); 1381 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1382 int find_acpi_cpu_topology_package(unsigned int cpu); 1383 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1384 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1385 #else 1386 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1387 { 1388 return -EINVAL; 1389 } 1390 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1391 { 1392 return -EINVAL; 1393 } 1394 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1395 { 1396 return -EINVAL; 1397 } 1398 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1399 { 1400 return -EINVAL; 1401 } 1402 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1403 { 1404 return -EINVAL; 1405 } 1406 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1407 { 1408 return -EINVAL; 1409 } 1410 #endif 1411 1412 #ifdef CONFIG_ACPI_PCC 1413 void acpi_init_pcc(void); 1414 #else 1415 static inline void acpi_init_pcc(void) { } 1416 #endif 1417 1418 #ifdef CONFIG_ACPI 1419 extern void acpi_device_notify(struct device *dev); 1420 extern void acpi_device_notify_remove(struct device *dev); 1421 #else 1422 static inline void acpi_device_notify(struct device *dev) { } 1423 static inline void acpi_device_notify_remove(struct device *dev) { } 1424 #endif 1425 1426 #endif /*_LINUX_ACPI_H*/ 1427