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_LPIC, 109 ACPI_IRQ_MODEL_COUNT 110 }; 111 112 extern enum acpi_irq_model_id acpi_irq_model; 113 114 enum acpi_interrupt_id { 115 ACPI_INTERRUPT_PMI = 1, 116 ACPI_INTERRUPT_INIT, 117 ACPI_INTERRUPT_CPEI, 118 ACPI_INTERRUPT_COUNT 119 }; 120 121 #define ACPI_SPACE_MEM 0 122 123 enum acpi_address_range_id { 124 ACPI_ADDRESS_RANGE_MEMORY = 1, 125 ACPI_ADDRESS_RANGE_RESERVED = 2, 126 ACPI_ADDRESS_RANGE_ACPI = 3, 127 ACPI_ADDRESS_RANGE_NVS = 4, 128 ACPI_ADDRESS_RANGE_COUNT 129 }; 130 131 132 /* Table Handlers */ 133 union acpi_subtable_headers { 134 struct acpi_subtable_header common; 135 struct acpi_hmat_structure hmat; 136 struct acpi_prmt_module_header prmt; 137 struct acpi_cedt_header cedt; 138 }; 139 140 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 141 142 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 143 const unsigned long end); 144 145 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 146 void *arg, const unsigned long end); 147 148 /* Debugger support */ 149 150 struct acpi_debugger_ops { 151 int (*create_thread)(acpi_osd_exec_callback function, void *context); 152 ssize_t (*write_log)(const char *msg); 153 ssize_t (*read_cmd)(char *buffer, size_t length); 154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 155 int (*notify_command_complete)(void); 156 }; 157 158 struct acpi_debugger { 159 const struct acpi_debugger_ops *ops; 160 struct module *owner; 161 struct mutex lock; 162 }; 163 164 #ifdef CONFIG_ACPI_DEBUGGER 165 int __init acpi_debugger_init(void); 166 int acpi_register_debugger(struct module *owner, 167 const struct acpi_debugger_ops *ops); 168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 170 ssize_t acpi_debugger_write_log(const char *msg); 171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 172 int acpi_debugger_wait_command_ready(void); 173 int acpi_debugger_notify_command_complete(void); 174 #else 175 static inline int acpi_debugger_init(void) 176 { 177 return -ENODEV; 178 } 179 180 static inline int acpi_register_debugger(struct module *owner, 181 const struct acpi_debugger_ops *ops) 182 { 183 return -ENODEV; 184 } 185 186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 187 { 188 } 189 190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 191 void *context) 192 { 193 return -ENODEV; 194 } 195 196 static inline int acpi_debugger_write_log(const char *msg) 197 { 198 return -ENODEV; 199 } 200 201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 202 { 203 return -ENODEV; 204 } 205 206 static inline int acpi_debugger_wait_command_ready(void) 207 { 208 return -ENODEV; 209 } 210 211 static inline int acpi_debugger_notify_command_complete(void) 212 { 213 return -ENODEV; 214 } 215 #endif 216 217 #define BAD_MADT_ENTRY(entry, end) ( \ 218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 220 221 struct acpi_subtable_proc { 222 int id; 223 acpi_tbl_entry_handler handler; 224 acpi_tbl_entry_handler_arg handler_arg; 225 void *arg; 226 int count; 227 }; 228 229 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 230 void __acpi_unmap_table(void __iomem *map, unsigned long size); 231 int early_acpi_boot_init(void); 232 int acpi_boot_init (void); 233 void acpi_boot_table_prepare (void); 234 void acpi_boot_table_init (void); 235 int acpi_mps_check (void); 236 int acpi_numa_init (void); 237 238 int acpi_locate_initial_tables (void); 239 void acpi_reserve_initial_tables (void); 240 void acpi_table_init_complete (void); 241 int acpi_table_init (void); 242 243 #ifdef CONFIG_ACPI_TABLE_LIB 244 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 245 #define __init_or_acpilib 246 #define __initdata_or_acpilib 247 #else 248 #define EXPORT_SYMBOL_ACPI_LIB(x) 249 #define __init_or_acpilib __init 250 #define __initdata_or_acpilib __initdata 251 #endif 252 253 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 254 int __init_or_acpilib acpi_table_parse_entries(char *id, 255 unsigned long table_size, int entry_id, 256 acpi_tbl_entry_handler handler, unsigned int max_entries); 257 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 258 unsigned long table_size, struct acpi_subtable_proc *proc, 259 int proc_num, unsigned int max_entries); 260 int acpi_table_parse_madt(enum acpi_madt_type id, 261 acpi_tbl_entry_handler handler, 262 unsigned int max_entries); 263 int __init_or_acpilib 264 acpi_table_parse_cedt(enum acpi_cedt_type id, 265 acpi_tbl_entry_handler_arg handler_arg, void *arg); 266 267 int acpi_parse_mcfg (struct acpi_table_header *header); 268 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 269 270 /* the following numa functions are architecture-dependent */ 271 void acpi_numa_slit_init (struct acpi_table_slit *slit); 272 273 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 274 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 275 #else 276 static inline void 277 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 278 #endif 279 280 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 281 282 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 283 void acpi_arch_dma_setup(struct device *dev); 284 #else 285 static inline void acpi_arch_dma_setup(struct device *dev) { } 286 #endif 287 288 #ifdef CONFIG_ARM64 289 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 290 #else 291 static inline void 292 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 293 #endif 294 295 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 296 297 #ifndef PHYS_CPUID_INVALID 298 typedef u32 phys_cpuid_t; 299 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 300 #endif 301 302 static inline bool invalid_logical_cpuid(u32 cpuid) 303 { 304 return (int)cpuid < 0; 305 } 306 307 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 308 { 309 return phys_id == PHYS_CPUID_INVALID; 310 } 311 312 /* Validate the processor object's proc_id */ 313 bool acpi_duplicate_processor_id(int proc_id); 314 /* Processor _CTS control */ 315 struct acpi_processor_power; 316 317 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 318 bool acpi_processor_claim_cst_control(void); 319 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 320 struct acpi_processor_power *info); 321 #else 322 static inline bool acpi_processor_claim_cst_control(void) { return false; } 323 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 324 struct acpi_processor_power *info) 325 { 326 return -ENODEV; 327 } 328 #endif 329 330 #ifdef CONFIG_ACPI_HOTPLUG_CPU 331 /* Arch dependent functions for cpu hotplug support */ 332 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 333 int *pcpu); 334 int acpi_unmap_cpu(int cpu); 335 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 336 337 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 338 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 339 #endif 340 341 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 342 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 343 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 344 void acpi_irq_stats_init(void); 345 extern u32 acpi_irq_handled; 346 extern u32 acpi_irq_not_handled; 347 extern unsigned int acpi_sci_irq; 348 extern bool acpi_no_s5; 349 #define INVALID_ACPI_IRQ ((unsigned)-1) 350 static inline bool acpi_sci_irq_valid(void) 351 { 352 return acpi_sci_irq != INVALID_ACPI_IRQ; 353 } 354 355 extern int sbf_port; 356 extern unsigned long acpi_realmode_flags; 357 358 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 359 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 360 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 361 362 void acpi_set_irq_model(enum acpi_irq_model_id model, 363 struct fwnode_handle *(*)(u32)); 364 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 365 366 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 367 unsigned int size, 368 struct fwnode_handle *fwnode, 369 const struct irq_domain_ops *ops, 370 void *host_data); 371 372 #ifdef CONFIG_X86_IO_APIC 373 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 374 #else 375 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 376 { 377 return -1; 378 } 379 #endif 380 /* 381 * This function undoes the effect of one call to acpi_register_gsi(). 382 * If this matches the last registration, any IRQ resources for gsi 383 * are freed. 384 */ 385 void acpi_unregister_gsi (u32 gsi); 386 387 struct pci_dev; 388 389 int acpi_pci_irq_enable (struct pci_dev *dev); 390 void acpi_penalize_isa_irq(int irq, int active); 391 bool acpi_isa_irq_available(int irq); 392 #ifdef CONFIG_PCI 393 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 394 #else 395 static inline void acpi_penalize_sci_irq(int irq, int trigger, 396 int polarity) 397 { 398 } 399 #endif 400 void acpi_pci_irq_disable (struct pci_dev *dev); 401 402 extern int ec_read(u8 addr, u8 *val); 403 extern int ec_write(u8 addr, u8 val); 404 extern int ec_transaction(u8 command, 405 const u8 *wdata, unsigned wdata_len, 406 u8 *rdata, unsigned rdata_len); 407 extern acpi_handle ec_get_handle(void); 408 409 extern bool acpi_is_pnp_device(struct acpi_device *); 410 411 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 412 413 typedef void (*wmi_notify_handler) (u32 value, void *context); 414 415 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 416 u32 method_id, 417 const struct acpi_buffer *in, 418 struct acpi_buffer *out); 419 extern acpi_status wmi_query_block(const char *guid, u8 instance, 420 struct acpi_buffer *out); 421 extern acpi_status wmi_set_block(const char *guid, u8 instance, 422 const struct acpi_buffer *in); 423 extern acpi_status wmi_install_notify_handler(const char *guid, 424 wmi_notify_handler handler, void *data); 425 extern acpi_status wmi_remove_notify_handler(const char *guid); 426 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 427 extern bool wmi_has_guid(const char *guid); 428 extern char *wmi_get_acpi_device_uid(const char *guid); 429 430 #endif /* CONFIG_ACPI_WMI */ 431 432 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 433 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 434 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 435 #define ACPI_VIDEO_BACKLIGHT 0x0008 436 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 437 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 438 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 439 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 440 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 441 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 442 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 443 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 444 445 extern char acpi_video_backlight_string[]; 446 extern long acpi_is_video_device(acpi_handle handle); 447 extern int acpi_blacklisted(void); 448 extern void acpi_osi_setup(char *str); 449 extern bool acpi_osi_is_win8(void); 450 451 #ifdef CONFIG_ACPI_NUMA 452 int acpi_map_pxm_to_node(int pxm); 453 int acpi_get_node(acpi_handle handle); 454 455 /** 456 * pxm_to_online_node - Map proximity ID to online node 457 * @pxm: ACPI proximity ID 458 * 459 * This is similar to pxm_to_node(), but always returns an online 460 * node. When the mapped node from a given proximity ID is offline, it 461 * looks up the node distance table and returns the nearest online node. 462 * 463 * ACPI device drivers, which are called after the NUMA initialization has 464 * completed in the kernel, can call this interface to obtain their device 465 * NUMA topology from ACPI tables. Such drivers do not have to deal with 466 * offline nodes. A node may be offline when SRAT memory entry does not exist, 467 * or NUMA is disabled, ex. "numa=off" on x86. 468 */ 469 static inline int pxm_to_online_node(int pxm) 470 { 471 int node = pxm_to_node(pxm); 472 473 return numa_map_to_online_node(node); 474 } 475 #else 476 static inline int pxm_to_online_node(int pxm) 477 { 478 return 0; 479 } 480 static inline int acpi_map_pxm_to_node(int pxm) 481 { 482 return 0; 483 } 484 static inline int acpi_get_node(acpi_handle handle) 485 { 486 return 0; 487 } 488 #endif 489 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 490 491 extern int pnpacpi_disabled; 492 493 #define PXM_INVAL (-1) 494 495 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 496 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 497 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 498 struct resource_win *win); 499 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 500 struct resource_win *win); 501 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 502 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 503 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 504 struct resource *res); 505 506 void acpi_dev_free_resource_list(struct list_head *list); 507 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 508 int (*preproc)(struct acpi_resource *, void *), 509 void *preproc_data); 510 int acpi_dev_get_dma_resources(struct acpi_device *adev, 511 struct list_head *list); 512 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 513 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 514 unsigned long types); 515 516 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 517 void *arg) 518 { 519 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 520 } 521 522 struct acpi_device *acpi_resource_consumer(struct resource *res); 523 524 int acpi_check_resource_conflict(const struct resource *res); 525 526 int acpi_check_region(resource_size_t start, resource_size_t n, 527 const char *name); 528 529 int acpi_resources_are_enforced(void); 530 531 #ifdef CONFIG_HIBERNATION 532 extern int acpi_check_s4_hw_signature; 533 #endif 534 535 #ifdef CONFIG_PM_SLEEP 536 void __init acpi_old_suspend_ordering(void); 537 void __init acpi_nvs_nosave(void); 538 void __init acpi_nvs_nosave_s3(void); 539 void __init acpi_sleep_no_blacklist(void); 540 #endif /* CONFIG_PM_SLEEP */ 541 542 int acpi_register_wakeup_handler( 543 int wake_irq, bool (*wakeup)(void *context), void *context); 544 void acpi_unregister_wakeup_handler( 545 bool (*wakeup)(void *context), void *context); 546 547 struct acpi_osc_context { 548 char *uuid_str; /* UUID string */ 549 int rev; 550 struct acpi_buffer cap; /* list of DWORD capabilities */ 551 struct acpi_buffer ret; /* free by caller if success */ 552 }; 553 554 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 555 556 /* Number of _OSC capability DWORDS depends on bridge type */ 557 #define OSC_PCI_CAPABILITY_DWORDS 3 558 #define OSC_CXL_CAPABILITY_DWORDS 5 559 560 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 561 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 562 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 563 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 564 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 565 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 566 567 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 568 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 569 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 570 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 571 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 572 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 573 574 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 575 #define OSC_SB_PAD_SUPPORT 0x00000001 576 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 577 #define OSC_SB_PR3_SUPPORT 0x00000004 578 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 579 #define OSC_SB_APEI_SUPPORT 0x00000010 580 #define OSC_SB_CPC_SUPPORT 0x00000020 581 #define OSC_SB_CPCV2_SUPPORT 0x00000040 582 #define OSC_SB_PCLPI_SUPPORT 0x00000080 583 #define OSC_SB_OSLPI_SUPPORT 0x00000100 584 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 585 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 586 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 587 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 588 #define OSC_SB_PRM_SUPPORT 0x00200000 589 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 590 591 extern bool osc_sb_apei_support_acked; 592 extern bool osc_pc_lpi_support_confirmed; 593 extern bool osc_sb_native_usb4_support_confirmed; 594 extern bool osc_sb_cppc2_support_acked; 595 extern bool osc_cpc_flexible_adr_space_confirmed; 596 597 /* USB4 Capabilities */ 598 #define OSC_USB_USB3_TUNNELING 0x00000001 599 #define OSC_USB_DP_TUNNELING 0x00000002 600 #define OSC_USB_PCIE_TUNNELING 0x00000004 601 #define OSC_USB_XDOMAIN 0x00000008 602 603 extern u32 osc_sb_native_usb4_control; 604 605 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 606 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 607 #define OSC_PCI_ASPM_SUPPORT 0x00000002 608 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 609 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 610 #define OSC_PCI_MSI_SUPPORT 0x00000010 611 #define OSC_PCI_EDR_SUPPORT 0x00000080 612 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 613 614 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 615 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 616 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 617 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 618 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 619 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 620 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 621 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 622 623 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 624 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 625 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 626 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 627 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 628 629 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 630 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 631 632 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 633 { 634 u32 *ret = context->ret.pointer; 635 636 return ret[OSC_CONTROL_DWORD]; 637 } 638 639 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 640 { 641 u32 *ret = context->ret.pointer; 642 643 return ret[OSC_EXT_CONTROL_DWORD]; 644 } 645 646 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 647 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 648 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 649 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 650 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 651 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 652 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 653 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 655 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 656 657 /* Enable _OST when all relevant hotplug operations are enabled */ 658 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 659 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 660 defined(CONFIG_ACPI_CONTAINER) 661 #define ACPI_HOTPLUG_OST 662 #endif 663 664 /* _OST Source Event Code (OSPM Action) */ 665 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 666 #define ACPI_OST_EC_OSPM_EJECT 0x103 667 #define ACPI_OST_EC_OSPM_INSERTION 0x200 668 669 /* _OST General Processing Status Code */ 670 #define ACPI_OST_SC_SUCCESS 0x0 671 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 672 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 673 674 /* _OST OS Shutdown Processing (0x100) Status Code */ 675 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 676 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 677 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 678 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 679 680 /* _OST Ejection Request (0x3, 0x103) Status Code */ 681 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 682 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 683 #define ACPI_OST_SC_DEVICE_BUSY 0x82 684 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 685 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 686 687 /* _OST Insertion Request (0x200) Status Code */ 688 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 689 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 690 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 691 692 enum acpi_predicate { 693 all_versions, 694 less_than_or_equal, 695 equal, 696 greater_than_or_equal, 697 }; 698 699 /* Table must be terminted by a NULL entry */ 700 struct acpi_platform_list { 701 char oem_id[ACPI_OEM_ID_SIZE+1]; 702 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 703 u32 oem_revision; 704 char *table; 705 enum acpi_predicate pred; 706 char *reason; 707 u32 data; 708 }; 709 int acpi_match_platform_list(const struct acpi_platform_list *plat); 710 711 extern void acpi_early_init(void); 712 extern void acpi_subsystem_init(void); 713 extern void arch_post_acpi_subsys_init(void); 714 715 extern int acpi_nvs_register(__u64 start, __u64 size); 716 717 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 718 void *data); 719 720 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 721 const struct device *dev); 722 723 const void *acpi_device_get_match_data(const struct device *dev); 724 extern bool acpi_driver_match_device(struct device *dev, 725 const struct device_driver *drv); 726 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 727 int acpi_device_modalias(struct device *, char *, int); 728 729 struct platform_device *acpi_create_platform_device(struct acpi_device *, 730 const struct property_entry *); 731 #define ACPI_PTR(_ptr) (_ptr) 732 733 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 734 { 735 adev->flags.visited = true; 736 } 737 738 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 739 { 740 adev->flags.visited = false; 741 } 742 743 enum acpi_reconfig_event { 744 ACPI_RECONFIG_DEVICE_ADD = 0, 745 ACPI_RECONFIG_DEVICE_REMOVE, 746 }; 747 748 int acpi_reconfig_notifier_register(struct notifier_block *nb); 749 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 750 751 #ifdef CONFIG_ACPI_GTDT 752 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 753 int acpi_gtdt_map_ppi(int type); 754 bool acpi_gtdt_c3stop(int type); 755 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 756 #endif 757 758 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 759 static inline void acpi_arch_set_root_pointer(u64 addr) 760 { 761 } 762 #endif 763 764 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 765 static inline u64 acpi_arch_get_root_pointer(void) 766 { 767 return 0; 768 } 769 #endif 770 771 int acpi_get_local_address(acpi_handle handle, u32 *addr); 772 const char *acpi_get_subsystem_id(acpi_handle handle); 773 774 #else /* !CONFIG_ACPI */ 775 776 #define acpi_disabled 1 777 778 #define ACPI_COMPANION(dev) (NULL) 779 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 780 #define ACPI_HANDLE(dev) (NULL) 781 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 782 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 783 784 #include <acpi/acpi_numa.h> 785 786 struct fwnode_handle; 787 788 static inline bool acpi_dev_found(const char *hid) 789 { 790 return false; 791 } 792 793 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 794 { 795 return false; 796 } 797 798 struct acpi_device; 799 800 static inline bool 801 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 802 { 803 return false; 804 } 805 806 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 807 { 808 return -ENODEV; 809 } 810 811 static inline struct acpi_device * 812 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 813 { 814 return NULL; 815 } 816 817 static inline bool acpi_reduced_hardware(void) 818 { 819 return false; 820 } 821 822 static inline void acpi_dev_put(struct acpi_device *adev) {} 823 824 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 825 { 826 return false; 827 } 828 829 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 830 { 831 return false; 832 } 833 834 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 835 { 836 return NULL; 837 } 838 839 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 840 { 841 return false; 842 } 843 844 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 845 { 846 return NULL; 847 } 848 849 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 850 const char *name) 851 { 852 return false; 853 } 854 855 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 856 { 857 return NULL; 858 } 859 860 static inline bool has_acpi_companion(struct device *dev) 861 { 862 return false; 863 } 864 865 static inline void acpi_preset_companion(struct device *dev, 866 struct acpi_device *parent, u64 addr) 867 { 868 } 869 870 static inline const char *acpi_dev_name(struct acpi_device *adev) 871 { 872 return NULL; 873 } 874 875 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 876 { 877 return NULL; 878 } 879 880 static inline void acpi_early_init(void) { } 881 static inline void acpi_subsystem_init(void) { } 882 883 static inline int early_acpi_boot_init(void) 884 { 885 return 0; 886 } 887 static inline int acpi_boot_init(void) 888 { 889 return 0; 890 } 891 892 static inline void acpi_boot_table_prepare(void) 893 { 894 } 895 896 static inline void acpi_boot_table_init(void) 897 { 898 } 899 900 static inline int acpi_mps_check(void) 901 { 902 return 0; 903 } 904 905 static inline int acpi_check_resource_conflict(struct resource *res) 906 { 907 return 0; 908 } 909 910 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 911 const char *name) 912 { 913 return 0; 914 } 915 916 struct acpi_table_header; 917 static inline int acpi_table_parse(char *id, 918 int (*handler)(struct acpi_table_header *)) 919 { 920 return -ENODEV; 921 } 922 923 static inline int acpi_nvs_register(__u64 start, __u64 size) 924 { 925 return 0; 926 } 927 928 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 929 void *data) 930 { 931 return 0; 932 } 933 934 struct acpi_device_id; 935 936 static inline const struct acpi_device_id *acpi_match_device( 937 const struct acpi_device_id *ids, const struct device *dev) 938 { 939 return NULL; 940 } 941 942 static inline const void *acpi_device_get_match_data(const struct device *dev) 943 { 944 return NULL; 945 } 946 947 static inline bool acpi_driver_match_device(struct device *dev, 948 const struct device_driver *drv) 949 { 950 return false; 951 } 952 953 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 954 const guid_t *guid, 955 u64 rev, u64 func, 956 union acpi_object *argv4) 957 { 958 return NULL; 959 } 960 961 static inline int acpi_device_uevent_modalias(struct device *dev, 962 struct kobj_uevent_env *env) 963 { 964 return -ENODEV; 965 } 966 967 static inline int acpi_device_modalias(struct device *dev, 968 char *buf, int size) 969 { 970 return -ENODEV; 971 } 972 973 static inline struct platform_device * 974 acpi_create_platform_device(struct acpi_device *adev, 975 const struct property_entry *properties) 976 { 977 return NULL; 978 } 979 980 static inline bool acpi_dma_supported(const struct acpi_device *adev) 981 { 982 return false; 983 } 984 985 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 986 { 987 return DEV_DMA_NOT_SUPPORTED; 988 } 989 990 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 991 { 992 return -ENODEV; 993 } 994 995 static inline int acpi_dma_configure(struct device *dev, 996 enum dev_dma_attr attr) 997 { 998 return 0; 999 } 1000 1001 static inline int acpi_dma_configure_id(struct device *dev, 1002 enum dev_dma_attr attr, 1003 const u32 *input_id) 1004 { 1005 return 0; 1006 } 1007 1008 #define ACPI_PTR(_ptr) (NULL) 1009 1010 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1011 { 1012 } 1013 1014 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1015 { 1016 } 1017 1018 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1019 { 1020 return -EINVAL; 1021 } 1022 1023 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1024 { 1025 return -EINVAL; 1026 } 1027 1028 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1029 { 1030 return NULL; 1031 } 1032 1033 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1034 { 1035 return -ENODEV; 1036 } 1037 1038 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1039 { 1040 return ERR_PTR(-ENODEV); 1041 } 1042 1043 static inline int acpi_register_wakeup_handler(int wake_irq, 1044 bool (*wakeup)(void *context), void *context) 1045 { 1046 return -ENXIO; 1047 } 1048 1049 static inline void acpi_unregister_wakeup_handler( 1050 bool (*wakeup)(void *context), void *context) { } 1051 1052 struct acpi_osc_context; 1053 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1054 { 1055 return 0; 1056 } 1057 1058 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1059 { 1060 return 0; 1061 } 1062 1063 #endif /* !CONFIG_ACPI */ 1064 1065 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1066 int acpi_ioapic_add(acpi_handle root); 1067 #else 1068 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1069 #endif 1070 1071 #ifdef CONFIG_ACPI 1072 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1073 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1074 1075 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1076 u32 pm1a_control, u32 pm1b_control); 1077 1078 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1079 u32 val_a, u32 val_b)); 1080 1081 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1082 u32 val_a, u32 val_b); 1083 #ifdef CONFIG_X86 1084 struct acpi_s2idle_dev_ops { 1085 struct list_head list_node; 1086 void (*prepare)(void); 1087 void (*check)(void); 1088 void (*restore)(void); 1089 }; 1090 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1091 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1092 #endif /* CONFIG_X86 */ 1093 #ifndef CONFIG_IA64 1094 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1095 #else 1096 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1097 size_t size) 1098 { 1099 } 1100 #endif /* CONFIG_X86 */ 1101 #else 1102 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1103 #endif 1104 1105 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1106 int acpi_dev_suspend(struct device *dev, bool wakeup); 1107 int acpi_dev_resume(struct device *dev); 1108 int acpi_subsys_runtime_suspend(struct device *dev); 1109 int acpi_subsys_runtime_resume(struct device *dev); 1110 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1111 bool acpi_storage_d3(struct device *dev); 1112 bool acpi_dev_state_d0(struct device *dev); 1113 #else 1114 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1115 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1116 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1117 { 1118 return 0; 1119 } 1120 static inline bool acpi_storage_d3(struct device *dev) 1121 { 1122 return false; 1123 } 1124 static inline bool acpi_dev_state_d0(struct device *dev) 1125 { 1126 return true; 1127 } 1128 #endif 1129 1130 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1131 int acpi_subsys_prepare(struct device *dev); 1132 void acpi_subsys_complete(struct device *dev); 1133 int acpi_subsys_suspend_late(struct device *dev); 1134 int acpi_subsys_suspend_noirq(struct device *dev); 1135 int acpi_subsys_suspend(struct device *dev); 1136 int acpi_subsys_freeze(struct device *dev); 1137 int acpi_subsys_poweroff(struct device *dev); 1138 void acpi_ec_mark_gpe_for_wake(void); 1139 void acpi_ec_set_gpe_wake_mask(u8 action); 1140 int acpi_subsys_restore_early(struct device *dev); 1141 #else 1142 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1143 static inline void acpi_subsys_complete(struct device *dev) {} 1144 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1145 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1146 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1147 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1148 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1149 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1150 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1151 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1152 #endif 1153 1154 #ifdef CONFIG_ACPI 1155 __printf(3, 4) 1156 void acpi_handle_printk(const char *level, acpi_handle handle, 1157 const char *fmt, ...); 1158 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1159 acpi_status status); 1160 #else /* !CONFIG_ACPI */ 1161 static inline __printf(3, 4) void 1162 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1163 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1164 const char *name, 1165 acpi_status status) {} 1166 #endif /* !CONFIG_ACPI */ 1167 1168 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1169 __printf(3, 4) 1170 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1171 #endif 1172 1173 /* 1174 * acpi_handle_<level>: Print message with ACPI prefix and object path 1175 * 1176 * These interfaces acquire the global namespace mutex to obtain an object 1177 * path. In interrupt context, it shows the object path as <n/a>. 1178 */ 1179 #define acpi_handle_emerg(handle, fmt, ...) \ 1180 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1181 #define acpi_handle_alert(handle, fmt, ...) \ 1182 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1183 #define acpi_handle_crit(handle, fmt, ...) \ 1184 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1185 #define acpi_handle_err(handle, fmt, ...) \ 1186 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1187 #define acpi_handle_warn(handle, fmt, ...) \ 1188 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1189 #define acpi_handle_notice(handle, fmt, ...) \ 1190 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1191 #define acpi_handle_info(handle, fmt, ...) \ 1192 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1193 1194 #if defined(DEBUG) 1195 #define acpi_handle_debug(handle, fmt, ...) \ 1196 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1197 #else 1198 #if defined(CONFIG_DYNAMIC_DEBUG) 1199 #define acpi_handle_debug(handle, fmt, ...) \ 1200 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1201 handle, pr_fmt(fmt), ##__VA_ARGS__) 1202 #else 1203 #define acpi_handle_debug(handle, fmt, ...) \ 1204 ({ \ 1205 if (0) \ 1206 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1207 0; \ 1208 }) 1209 #endif 1210 #endif 1211 1212 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1213 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1214 struct acpi_resource_gpio **agpio); 1215 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1216 struct acpi_resource_gpio **agpio); 1217 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1218 bool *wake_capable); 1219 #else 1220 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1221 struct acpi_resource_gpio **agpio) 1222 { 1223 return false; 1224 } 1225 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1226 struct acpi_resource_gpio **agpio) 1227 { 1228 return false; 1229 } 1230 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1231 int index, bool *wake_capable) 1232 { 1233 return -ENXIO; 1234 } 1235 #endif 1236 1237 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1238 bool *wake_capable) 1239 { 1240 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1241 } 1242 1243 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1244 int index) 1245 { 1246 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1247 } 1248 1249 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1250 { 1251 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1252 } 1253 1254 /* Device properties */ 1255 1256 #ifdef CONFIG_ACPI 1257 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1258 acpi_object_type type, const union acpi_object **obj); 1259 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1260 const char *name, size_t index, size_t num_args, 1261 struct fwnode_reference_args *args); 1262 1263 static inline int acpi_node_get_property_reference( 1264 const struct fwnode_handle *fwnode, 1265 const char *name, size_t index, 1266 struct fwnode_reference_args *args) 1267 { 1268 return __acpi_node_get_property_reference(fwnode, name, index, 1269 NR_FWNODE_REFERENCE_ARGS, args); 1270 } 1271 1272 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1273 { 1274 return !list_empty(&adev->data.properties); 1275 } 1276 1277 struct acpi_device_properties * 1278 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1279 union acpi_object *properties); 1280 1281 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1282 void **valptr); 1283 1284 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1285 struct fwnode_handle *child); 1286 1287 struct acpi_probe_entry; 1288 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1289 struct acpi_probe_entry *); 1290 1291 #define ACPI_TABLE_ID_LEN 5 1292 1293 /** 1294 * struct acpi_probe_entry - boot-time probing entry 1295 * @id: ACPI table name 1296 * @type: Optional subtable type to match 1297 * (if @id contains subtables) 1298 * @subtable_valid: Optional callback to check the validity of 1299 * the subtable 1300 * @probe_table: Callback to the driver being probed when table 1301 * match is successful 1302 * @probe_subtbl: Callback to the driver being probed when table and 1303 * subtable match (and optional callback is successful) 1304 * @driver_data: Sideband data provided back to the driver 1305 */ 1306 struct acpi_probe_entry { 1307 __u8 id[ACPI_TABLE_ID_LEN]; 1308 __u8 type; 1309 acpi_probe_entry_validate_subtbl subtable_valid; 1310 union { 1311 acpi_tbl_table_handler probe_table; 1312 acpi_tbl_entry_handler probe_subtbl; 1313 }; 1314 kernel_ulong_t driver_data; 1315 }; 1316 1317 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1318 valid, data, fn) \ 1319 static const struct acpi_probe_entry __acpi_probe_##name \ 1320 __used __section("__" #table "_acpi_probe_table") = { \ 1321 .id = table_id, \ 1322 .type = subtable, \ 1323 .subtable_valid = valid, \ 1324 .probe_table = fn, \ 1325 .driver_data = data, \ 1326 } 1327 1328 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1329 subtable, valid, data, fn) \ 1330 static const struct acpi_probe_entry __acpi_probe_##name \ 1331 __used __section("__" #table "_acpi_probe_table") = { \ 1332 .id = table_id, \ 1333 .type = subtable, \ 1334 .subtable_valid = valid, \ 1335 .probe_subtbl = fn, \ 1336 .driver_data = data, \ 1337 } 1338 1339 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1340 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1341 1342 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1343 1344 #define acpi_probe_device_table(t) \ 1345 ({ \ 1346 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1347 ACPI_PROBE_TABLE_END(t); \ 1348 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1349 (&ACPI_PROBE_TABLE_END(t) - \ 1350 &ACPI_PROBE_TABLE(t))); \ 1351 }) 1352 #else 1353 static inline int acpi_dev_get_property(struct acpi_device *adev, 1354 const char *name, acpi_object_type type, 1355 const union acpi_object **obj) 1356 { 1357 return -ENXIO; 1358 } 1359 1360 static inline int 1361 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1362 const char *name, size_t index, size_t num_args, 1363 struct fwnode_reference_args *args) 1364 { 1365 return -ENXIO; 1366 } 1367 1368 static inline int 1369 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1370 const char *name, size_t index, 1371 struct fwnode_reference_args *args) 1372 { 1373 return -ENXIO; 1374 } 1375 1376 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1377 const char *propname, 1378 void **valptr) 1379 { 1380 return -ENXIO; 1381 } 1382 1383 static inline struct fwnode_handle * 1384 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1385 struct fwnode_handle *child) 1386 { 1387 return NULL; 1388 } 1389 1390 static inline struct fwnode_handle * 1391 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1392 struct fwnode_handle *prev) 1393 { 1394 return ERR_PTR(-ENXIO); 1395 } 1396 1397 static inline int 1398 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1399 struct fwnode_handle **remote, 1400 struct fwnode_handle **port, 1401 struct fwnode_handle **endpoint) 1402 { 1403 return -ENXIO; 1404 } 1405 1406 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1407 static const void * __acpi_table_##name[] \ 1408 __attribute__((unused)) \ 1409 = { (void *) table_id, \ 1410 (void *) subtable, \ 1411 (void *) valid, \ 1412 (void *) fn, \ 1413 (void *) data } 1414 1415 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1416 #endif 1417 1418 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1419 void acpi_table_upgrade(void); 1420 #else 1421 static inline void acpi_table_upgrade(void) { } 1422 #endif 1423 1424 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1425 extern bool acpi_has_watchdog(void); 1426 #else 1427 static inline bool acpi_has_watchdog(void) { return false; } 1428 #endif 1429 1430 #ifdef CONFIG_ACPI_SPCR_TABLE 1431 extern bool qdf2400_e44_present; 1432 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1433 #else 1434 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1435 { 1436 return 0; 1437 } 1438 #endif 1439 1440 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1441 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1442 #else 1443 static inline 1444 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1445 { 1446 return -EINVAL; 1447 } 1448 #endif 1449 1450 #ifdef CONFIG_ACPI_LPIT 1451 int lpit_read_residency_count_address(u64 *address); 1452 #else 1453 static inline int lpit_read_residency_count_address(u64 *address) 1454 { 1455 return -EINVAL; 1456 } 1457 #endif 1458 1459 #ifdef CONFIG_ACPI_PPTT 1460 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1461 int find_acpi_cpu_topology(unsigned int cpu, int level); 1462 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1463 int find_acpi_cpu_topology_package(unsigned int cpu); 1464 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1465 #else 1466 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1467 { 1468 return -EINVAL; 1469 } 1470 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1471 { 1472 return -EINVAL; 1473 } 1474 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1475 { 1476 return -EINVAL; 1477 } 1478 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1479 { 1480 return -EINVAL; 1481 } 1482 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1483 { 1484 return -EINVAL; 1485 } 1486 #endif 1487 1488 #ifdef CONFIG_ACPI_PCC 1489 void acpi_init_pcc(void); 1490 #else 1491 static inline void acpi_init_pcc(void) { } 1492 #endif 1493 1494 #ifdef CONFIG_ACPI_FFH 1495 void acpi_init_ffh(void); 1496 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1497 void **region_ctxt); 1498 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1499 void *region_context); 1500 #else 1501 static inline void acpi_init_ffh(void) { } 1502 #endif 1503 1504 #ifdef CONFIG_ACPI 1505 extern void acpi_device_notify(struct device *dev); 1506 extern void acpi_device_notify_remove(struct device *dev); 1507 #else 1508 static inline void acpi_device_notify(struct device *dev) { } 1509 static inline void acpi_device_notify_remove(struct device *dev) { } 1510 #endif 1511 1512 #endif /*_LINUX_ACPI_H*/ 1513