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 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 extern int acpi_check_s4_hw_signature; 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 extern bool osc_sb_cppc_not_supported; 584 585 /* USB4 Capabilities */ 586 #define OSC_USB_USB3_TUNNELING 0x00000001 587 #define OSC_USB_DP_TUNNELING 0x00000002 588 #define OSC_USB_PCIE_TUNNELING 0x00000004 589 #define OSC_USB_XDOMAIN 0x00000008 590 591 extern u32 osc_sb_native_usb4_control; 592 593 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 594 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 595 #define OSC_PCI_ASPM_SUPPORT 0x00000002 596 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 597 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 598 #define OSC_PCI_MSI_SUPPORT 0x00000010 599 #define OSC_PCI_EDR_SUPPORT 0x00000080 600 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 601 602 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 603 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 604 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 605 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 606 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 607 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 608 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 609 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 610 611 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 612 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 613 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 614 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 615 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 616 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 617 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 618 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 619 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 620 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 621 622 /* Enable _OST when all relevant hotplug operations are enabled */ 623 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 624 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 625 defined(CONFIG_ACPI_CONTAINER) 626 #define ACPI_HOTPLUG_OST 627 #endif 628 629 /* _OST Source Event Code (OSPM Action) */ 630 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 631 #define ACPI_OST_EC_OSPM_EJECT 0x103 632 #define ACPI_OST_EC_OSPM_INSERTION 0x200 633 634 /* _OST General Processing Status Code */ 635 #define ACPI_OST_SC_SUCCESS 0x0 636 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 637 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 638 639 /* _OST OS Shutdown Processing (0x100) Status Code */ 640 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 641 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 642 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 643 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 644 645 /* _OST Ejection Request (0x3, 0x103) Status Code */ 646 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 647 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 648 #define ACPI_OST_SC_DEVICE_BUSY 0x82 649 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 650 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 651 652 /* _OST Insertion Request (0x200) Status Code */ 653 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 654 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 655 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 656 657 enum acpi_predicate { 658 all_versions, 659 less_than_or_equal, 660 equal, 661 greater_than_or_equal, 662 }; 663 664 /* Table must be terminted by a NULL entry */ 665 struct acpi_platform_list { 666 char oem_id[ACPI_OEM_ID_SIZE+1]; 667 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 668 u32 oem_revision; 669 char *table; 670 enum acpi_predicate pred; 671 char *reason; 672 u32 data; 673 }; 674 int acpi_match_platform_list(const struct acpi_platform_list *plat); 675 676 extern void acpi_early_init(void); 677 extern void acpi_subsystem_init(void); 678 extern void arch_post_acpi_subsys_init(void); 679 680 extern int acpi_nvs_register(__u64 start, __u64 size); 681 682 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 683 void *data); 684 685 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 686 const struct device *dev); 687 688 const void *acpi_device_get_match_data(const struct device *dev); 689 extern bool acpi_driver_match_device(struct device *dev, 690 const struct device_driver *drv); 691 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 692 int acpi_device_modalias(struct device *, char *, int); 693 694 struct platform_device *acpi_create_platform_device(struct acpi_device *, 695 const struct property_entry *); 696 #define ACPI_PTR(_ptr) (_ptr) 697 698 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 699 { 700 adev->flags.visited = true; 701 } 702 703 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 704 { 705 adev->flags.visited = false; 706 } 707 708 enum acpi_reconfig_event { 709 ACPI_RECONFIG_DEVICE_ADD = 0, 710 ACPI_RECONFIG_DEVICE_REMOVE, 711 }; 712 713 int acpi_reconfig_notifier_register(struct notifier_block *nb); 714 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 715 716 #ifdef CONFIG_ACPI_GTDT 717 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 718 int acpi_gtdt_map_ppi(int type); 719 bool acpi_gtdt_c3stop(int type); 720 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 721 #endif 722 723 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 724 static inline void acpi_arch_set_root_pointer(u64 addr) 725 { 726 } 727 #endif 728 729 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 730 static inline u64 acpi_arch_get_root_pointer(void) 731 { 732 return 0; 733 } 734 #endif 735 736 int acpi_get_local_address(acpi_handle handle, u32 *addr); 737 738 #else /* !CONFIG_ACPI */ 739 740 #define acpi_disabled 1 741 742 #define ACPI_COMPANION(dev) (NULL) 743 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 744 #define ACPI_HANDLE(dev) (NULL) 745 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 746 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 747 748 #include <acpi/acpi_numa.h> 749 750 struct fwnode_handle; 751 752 static inline bool acpi_dev_found(const char *hid) 753 { 754 return false; 755 } 756 757 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 758 { 759 return false; 760 } 761 762 struct acpi_device; 763 764 static inline bool 765 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 766 { 767 return false; 768 } 769 770 static inline struct acpi_device * 771 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 772 { 773 return NULL; 774 } 775 776 static inline bool acpi_reduced_hardware(void) 777 { 778 return false; 779 } 780 781 static inline void acpi_dev_put(struct acpi_device *adev) {} 782 783 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 784 { 785 return false; 786 } 787 788 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 789 { 790 return false; 791 } 792 793 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 794 { 795 return NULL; 796 } 797 798 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 799 { 800 return false; 801 } 802 803 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 804 { 805 return NULL; 806 } 807 808 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 809 const char *name) 810 { 811 return false; 812 } 813 814 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 815 { 816 return NULL; 817 } 818 819 static inline bool has_acpi_companion(struct device *dev) 820 { 821 return false; 822 } 823 824 static inline void acpi_preset_companion(struct device *dev, 825 struct acpi_device *parent, u64 addr) 826 { 827 } 828 829 static inline const char *acpi_dev_name(struct acpi_device *adev) 830 { 831 return NULL; 832 } 833 834 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 835 { 836 return NULL; 837 } 838 839 static inline void acpi_early_init(void) { } 840 static inline void acpi_subsystem_init(void) { } 841 842 static inline int early_acpi_boot_init(void) 843 { 844 return 0; 845 } 846 static inline int acpi_boot_init(void) 847 { 848 return 0; 849 } 850 851 static inline void acpi_boot_table_prepare(void) 852 { 853 } 854 855 static inline void acpi_boot_table_init(void) 856 { 857 } 858 859 static inline int acpi_mps_check(void) 860 { 861 return 0; 862 } 863 864 static inline int acpi_check_resource_conflict(struct resource *res) 865 { 866 return 0; 867 } 868 869 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 870 const char *name) 871 { 872 return 0; 873 } 874 875 struct acpi_table_header; 876 static inline int acpi_table_parse(char *id, 877 int (*handler)(struct acpi_table_header *)) 878 { 879 return -ENODEV; 880 } 881 882 static inline int acpi_nvs_register(__u64 start, __u64 size) 883 { 884 return 0; 885 } 886 887 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 888 void *data) 889 { 890 return 0; 891 } 892 893 struct acpi_device_id; 894 895 static inline const struct acpi_device_id *acpi_match_device( 896 const struct acpi_device_id *ids, const struct device *dev) 897 { 898 return NULL; 899 } 900 901 static inline const void *acpi_device_get_match_data(const struct device *dev) 902 { 903 return NULL; 904 } 905 906 static inline bool acpi_driver_match_device(struct device *dev, 907 const struct device_driver *drv) 908 { 909 return false; 910 } 911 912 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 913 const guid_t *guid, 914 u64 rev, u64 func, 915 union acpi_object *argv4) 916 { 917 return NULL; 918 } 919 920 static inline int acpi_device_uevent_modalias(struct device *dev, 921 struct kobj_uevent_env *env) 922 { 923 return -ENODEV; 924 } 925 926 static inline int acpi_device_modalias(struct device *dev, 927 char *buf, int size) 928 { 929 return -ENODEV; 930 } 931 932 static inline struct platform_device * 933 acpi_create_platform_device(struct acpi_device *adev, 934 const struct property_entry *properties) 935 { 936 return NULL; 937 } 938 939 static inline bool acpi_dma_supported(const struct acpi_device *adev) 940 { 941 return false; 942 } 943 944 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 945 { 946 return DEV_DMA_NOT_SUPPORTED; 947 } 948 949 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 950 u64 *offset, u64 *size) 951 { 952 return -ENODEV; 953 } 954 955 static inline int acpi_dma_configure(struct device *dev, 956 enum dev_dma_attr attr) 957 { 958 return 0; 959 } 960 961 static inline int acpi_dma_configure_id(struct device *dev, 962 enum dev_dma_attr attr, 963 const u32 *input_id) 964 { 965 return 0; 966 } 967 968 #define ACPI_PTR(_ptr) (NULL) 969 970 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 971 { 972 } 973 974 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 975 { 976 } 977 978 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 979 { 980 return -EINVAL; 981 } 982 983 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 984 { 985 return -EINVAL; 986 } 987 988 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 989 { 990 return NULL; 991 } 992 993 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 994 { 995 return -ENODEV; 996 } 997 998 static inline int acpi_register_wakeup_handler(int wake_irq, 999 bool (*wakeup)(void *context), void *context) 1000 { 1001 return -ENXIO; 1002 } 1003 1004 static inline void acpi_unregister_wakeup_handler( 1005 bool (*wakeup)(void *context), void *context) { } 1006 1007 #endif /* !CONFIG_ACPI */ 1008 1009 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1010 int acpi_ioapic_add(acpi_handle root); 1011 #else 1012 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1013 #endif 1014 1015 #ifdef CONFIG_ACPI 1016 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1017 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1018 1019 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1020 u32 pm1a_control, u32 pm1b_control); 1021 1022 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1023 u32 val_a, u32 val_b)); 1024 1025 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1026 u32 val_a, u32 val_b); 1027 #ifdef CONFIG_X86 1028 struct acpi_s2idle_dev_ops { 1029 struct list_head list_node; 1030 void (*prepare)(void); 1031 void (*restore)(void); 1032 }; 1033 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1034 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1035 #endif /* CONFIG_X86 */ 1036 #ifndef CONFIG_IA64 1037 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1038 #else 1039 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1040 size_t size) 1041 { 1042 } 1043 #endif /* CONFIG_X86 */ 1044 #else 1045 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1046 #endif 1047 1048 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1049 int acpi_dev_suspend(struct device *dev, bool wakeup); 1050 int acpi_dev_resume(struct device *dev); 1051 int acpi_subsys_runtime_suspend(struct device *dev); 1052 int acpi_subsys_runtime_resume(struct device *dev); 1053 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1054 bool acpi_storage_d3(struct device *dev); 1055 bool acpi_dev_state_d0(struct device *dev); 1056 #else 1057 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1058 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1059 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1060 { 1061 return 0; 1062 } 1063 static inline bool acpi_storage_d3(struct device *dev) 1064 { 1065 return false; 1066 } 1067 static inline bool acpi_dev_state_d0(struct device *dev) 1068 { 1069 return true; 1070 } 1071 #endif 1072 1073 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1074 int acpi_subsys_prepare(struct device *dev); 1075 void acpi_subsys_complete(struct device *dev); 1076 int acpi_subsys_suspend_late(struct device *dev); 1077 int acpi_subsys_suspend_noirq(struct device *dev); 1078 int acpi_subsys_suspend(struct device *dev); 1079 int acpi_subsys_freeze(struct device *dev); 1080 int acpi_subsys_poweroff(struct device *dev); 1081 void acpi_ec_mark_gpe_for_wake(void); 1082 void acpi_ec_set_gpe_wake_mask(u8 action); 1083 #else 1084 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1085 static inline void acpi_subsys_complete(struct device *dev) {} 1086 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1087 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1088 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1089 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1090 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1091 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1092 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1093 #endif 1094 1095 #ifdef CONFIG_ACPI 1096 __printf(3, 4) 1097 void acpi_handle_printk(const char *level, acpi_handle handle, 1098 const char *fmt, ...); 1099 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1100 acpi_status status); 1101 #else /* !CONFIG_ACPI */ 1102 static inline __printf(3, 4) void 1103 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1104 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1105 const char *name, 1106 acpi_status status) {} 1107 #endif /* !CONFIG_ACPI */ 1108 1109 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1110 __printf(3, 4) 1111 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1112 #endif 1113 1114 /* 1115 * acpi_handle_<level>: Print message with ACPI prefix and object path 1116 * 1117 * These interfaces acquire the global namespace mutex to obtain an object 1118 * path. In interrupt context, it shows the object path as <n/a>. 1119 */ 1120 #define acpi_handle_emerg(handle, fmt, ...) \ 1121 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1122 #define acpi_handle_alert(handle, fmt, ...) \ 1123 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1124 #define acpi_handle_crit(handle, fmt, ...) \ 1125 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1126 #define acpi_handle_err(handle, fmt, ...) \ 1127 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1128 #define acpi_handle_warn(handle, fmt, ...) \ 1129 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1130 #define acpi_handle_notice(handle, fmt, ...) \ 1131 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1132 #define acpi_handle_info(handle, fmt, ...) \ 1133 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1134 1135 #if defined(DEBUG) 1136 #define acpi_handle_debug(handle, fmt, ...) \ 1137 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1138 #else 1139 #if defined(CONFIG_DYNAMIC_DEBUG) 1140 #define acpi_handle_debug(handle, fmt, ...) \ 1141 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1142 handle, pr_fmt(fmt), ##__VA_ARGS__) 1143 #else 1144 #define acpi_handle_debug(handle, fmt, ...) \ 1145 ({ \ 1146 if (0) \ 1147 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1148 0; \ 1149 }) 1150 #endif 1151 #endif 1152 1153 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1154 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1155 struct acpi_resource_gpio **agpio); 1156 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1157 struct acpi_resource_gpio **agpio); 1158 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1159 #else 1160 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1161 struct acpi_resource_gpio **agpio) 1162 { 1163 return false; 1164 } 1165 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1166 struct acpi_resource_gpio **agpio) 1167 { 1168 return false; 1169 } 1170 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1171 const char *name, int index) 1172 { 1173 return -ENXIO; 1174 } 1175 #endif 1176 1177 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1178 { 1179 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1180 } 1181 1182 /* Device properties */ 1183 1184 #ifdef CONFIG_ACPI 1185 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1186 acpi_object_type type, const union acpi_object **obj); 1187 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1188 const char *name, size_t index, size_t num_args, 1189 struct fwnode_reference_args *args); 1190 1191 static inline int acpi_node_get_property_reference( 1192 const struct fwnode_handle *fwnode, 1193 const char *name, size_t index, 1194 struct fwnode_reference_args *args) 1195 { 1196 return __acpi_node_get_property_reference(fwnode, name, index, 1197 NR_FWNODE_REFERENCE_ARGS, args); 1198 } 1199 1200 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1201 { 1202 return !list_empty(&adev->data.properties); 1203 } 1204 1205 struct acpi_device_properties * 1206 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1207 const union acpi_object *properties); 1208 1209 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1210 void **valptr); 1211 1212 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1213 struct fwnode_handle *child); 1214 1215 struct acpi_probe_entry; 1216 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1217 struct acpi_probe_entry *); 1218 1219 #define ACPI_TABLE_ID_LEN 5 1220 1221 /** 1222 * struct acpi_probe_entry - boot-time probing entry 1223 * @id: ACPI table name 1224 * @type: Optional subtable type to match 1225 * (if @id contains subtables) 1226 * @subtable_valid: Optional callback to check the validity of 1227 * the subtable 1228 * @probe_table: Callback to the driver being probed when table 1229 * match is successful 1230 * @probe_subtbl: Callback to the driver being probed when table and 1231 * subtable match (and optional callback is successful) 1232 * @driver_data: Sideband data provided back to the driver 1233 */ 1234 struct acpi_probe_entry { 1235 __u8 id[ACPI_TABLE_ID_LEN]; 1236 __u8 type; 1237 acpi_probe_entry_validate_subtbl subtable_valid; 1238 union { 1239 acpi_tbl_table_handler probe_table; 1240 acpi_tbl_entry_handler probe_subtbl; 1241 }; 1242 kernel_ulong_t driver_data; 1243 }; 1244 1245 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1246 valid, data, fn) \ 1247 static const struct acpi_probe_entry __acpi_probe_##name \ 1248 __used __section("__" #table "_acpi_probe_table") = { \ 1249 .id = table_id, \ 1250 .type = subtable, \ 1251 .subtable_valid = valid, \ 1252 .probe_table = fn, \ 1253 .driver_data = data, \ 1254 } 1255 1256 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1257 subtable, valid, data, fn) \ 1258 static const struct acpi_probe_entry __acpi_probe_##name \ 1259 __used __section("__" #table "_acpi_probe_table") = { \ 1260 .id = table_id, \ 1261 .type = subtable, \ 1262 .subtable_valid = valid, \ 1263 .probe_subtbl = fn, \ 1264 .driver_data = data, \ 1265 } 1266 1267 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1268 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1269 1270 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1271 1272 #define acpi_probe_device_table(t) \ 1273 ({ \ 1274 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1275 ACPI_PROBE_TABLE_END(t); \ 1276 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1277 (&ACPI_PROBE_TABLE_END(t) - \ 1278 &ACPI_PROBE_TABLE(t))); \ 1279 }) 1280 #else 1281 static inline int acpi_dev_get_property(struct acpi_device *adev, 1282 const char *name, acpi_object_type type, 1283 const union acpi_object **obj) 1284 { 1285 return -ENXIO; 1286 } 1287 1288 static inline int 1289 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1290 const char *name, size_t index, size_t num_args, 1291 struct fwnode_reference_args *args) 1292 { 1293 return -ENXIO; 1294 } 1295 1296 static inline int 1297 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1298 const char *name, size_t index, 1299 struct fwnode_reference_args *args) 1300 { 1301 return -ENXIO; 1302 } 1303 1304 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1305 const char *propname, 1306 void **valptr) 1307 { 1308 return -ENXIO; 1309 } 1310 1311 static inline struct fwnode_handle * 1312 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1313 struct fwnode_handle *child) 1314 { 1315 return NULL; 1316 } 1317 1318 static inline struct fwnode_handle * 1319 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1320 struct fwnode_handle *prev) 1321 { 1322 return ERR_PTR(-ENXIO); 1323 } 1324 1325 static inline int 1326 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1327 struct fwnode_handle **remote, 1328 struct fwnode_handle **port, 1329 struct fwnode_handle **endpoint) 1330 { 1331 return -ENXIO; 1332 } 1333 1334 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1335 static const void * __acpi_table_##name[] \ 1336 __attribute__((unused)) \ 1337 = { (void *) table_id, \ 1338 (void *) subtable, \ 1339 (void *) valid, \ 1340 (void *) fn, \ 1341 (void *) data } 1342 1343 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1344 #endif 1345 1346 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1347 void acpi_table_upgrade(void); 1348 #else 1349 static inline void acpi_table_upgrade(void) { } 1350 #endif 1351 1352 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1353 extern bool acpi_has_watchdog(void); 1354 #else 1355 static inline bool acpi_has_watchdog(void) { return false; } 1356 #endif 1357 1358 #ifdef CONFIG_ACPI_SPCR_TABLE 1359 extern bool qdf2400_e44_present; 1360 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1361 #else 1362 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1363 { 1364 return 0; 1365 } 1366 #endif 1367 1368 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1369 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1370 #else 1371 static inline 1372 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1373 { 1374 return -EINVAL; 1375 } 1376 #endif 1377 1378 #ifdef CONFIG_ACPI_LPIT 1379 int lpit_read_residency_count_address(u64 *address); 1380 #else 1381 static inline int lpit_read_residency_count_address(u64 *address) 1382 { 1383 return -EINVAL; 1384 } 1385 #endif 1386 1387 #ifdef CONFIG_ACPI_PPTT 1388 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1389 int find_acpi_cpu_topology(unsigned int cpu, int level); 1390 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1391 int find_acpi_cpu_topology_package(unsigned int cpu); 1392 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1393 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1394 #else 1395 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1396 { 1397 return -EINVAL; 1398 } 1399 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1400 { 1401 return -EINVAL; 1402 } 1403 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1404 { 1405 return -EINVAL; 1406 } 1407 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1408 { 1409 return -EINVAL; 1410 } 1411 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1412 { 1413 return -EINVAL; 1414 } 1415 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1416 { 1417 return -EINVAL; 1418 } 1419 #endif 1420 1421 #ifdef CONFIG_ACPI_PCC 1422 void acpi_init_pcc(void); 1423 #else 1424 static inline void acpi_init_pcc(void) { } 1425 #endif 1426 1427 #ifdef CONFIG_ACPI 1428 extern void acpi_device_notify(struct device *dev); 1429 extern void acpi_device_notify_remove(struct device *dev); 1430 #else 1431 static inline void acpi_device_notify(struct device *dev) { } 1432 static inline void acpi_device_notify_remove(struct device *dev) { } 1433 #endif 1434 1435 #endif /*_LINUX_ACPI_H*/ 1436