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_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 589 590 extern bool osc_sb_apei_support_acked; 591 extern bool osc_pc_lpi_support_confirmed; 592 extern bool osc_sb_native_usb4_support_confirmed; 593 extern bool osc_sb_cppc2_support_acked; 594 extern bool osc_cpc_flexible_adr_space_confirmed; 595 596 /* USB4 Capabilities */ 597 #define OSC_USB_USB3_TUNNELING 0x00000001 598 #define OSC_USB_DP_TUNNELING 0x00000002 599 #define OSC_USB_PCIE_TUNNELING 0x00000004 600 #define OSC_USB_XDOMAIN 0x00000008 601 602 extern u32 osc_sb_native_usb4_control; 603 604 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 605 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 606 #define OSC_PCI_ASPM_SUPPORT 0x00000002 607 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 608 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 609 #define OSC_PCI_MSI_SUPPORT 0x00000010 610 #define OSC_PCI_EDR_SUPPORT 0x00000080 611 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 612 613 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 614 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 615 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 616 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 617 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 618 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 619 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 620 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 621 622 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 623 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 624 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 625 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 626 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 627 628 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 629 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 630 631 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 632 { 633 u32 *ret = context->ret.pointer; 634 635 return ret[OSC_CONTROL_DWORD]; 636 } 637 638 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 639 { 640 u32 *ret = context->ret.pointer; 641 642 return ret[OSC_EXT_CONTROL_DWORD]; 643 } 644 645 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 646 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 647 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 648 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 649 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 650 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 651 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 652 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 653 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 655 656 /* Enable _OST when all relevant hotplug operations are enabled */ 657 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 658 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 659 defined(CONFIG_ACPI_CONTAINER) 660 #define ACPI_HOTPLUG_OST 661 #endif 662 663 /* _OST Source Event Code (OSPM Action) */ 664 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 665 #define ACPI_OST_EC_OSPM_EJECT 0x103 666 #define ACPI_OST_EC_OSPM_INSERTION 0x200 667 668 /* _OST General Processing Status Code */ 669 #define ACPI_OST_SC_SUCCESS 0x0 670 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 671 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 672 673 /* _OST OS Shutdown Processing (0x100) Status Code */ 674 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 675 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 676 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 677 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 678 679 /* _OST Ejection Request (0x3, 0x103) Status Code */ 680 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 681 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 682 #define ACPI_OST_SC_DEVICE_BUSY 0x82 683 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 684 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 685 686 /* _OST Insertion Request (0x200) Status Code */ 687 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 688 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 689 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 690 691 enum acpi_predicate { 692 all_versions, 693 less_than_or_equal, 694 equal, 695 greater_than_or_equal, 696 }; 697 698 /* Table must be terminted by a NULL entry */ 699 struct acpi_platform_list { 700 char oem_id[ACPI_OEM_ID_SIZE+1]; 701 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 702 u32 oem_revision; 703 char *table; 704 enum acpi_predicate pred; 705 char *reason; 706 u32 data; 707 }; 708 int acpi_match_platform_list(const struct acpi_platform_list *plat); 709 710 extern void acpi_early_init(void); 711 extern void acpi_subsystem_init(void); 712 extern void arch_post_acpi_subsys_init(void); 713 714 extern int acpi_nvs_register(__u64 start, __u64 size); 715 716 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 717 void *data); 718 719 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 720 const struct device *dev); 721 722 const void *acpi_device_get_match_data(const struct device *dev); 723 extern bool acpi_driver_match_device(struct device *dev, 724 const struct device_driver *drv); 725 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 726 int acpi_device_modalias(struct device *, char *, int); 727 728 struct platform_device *acpi_create_platform_device(struct acpi_device *, 729 const struct property_entry *); 730 #define ACPI_PTR(_ptr) (_ptr) 731 732 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 733 { 734 adev->flags.visited = true; 735 } 736 737 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 738 { 739 adev->flags.visited = false; 740 } 741 742 enum acpi_reconfig_event { 743 ACPI_RECONFIG_DEVICE_ADD = 0, 744 ACPI_RECONFIG_DEVICE_REMOVE, 745 }; 746 747 int acpi_reconfig_notifier_register(struct notifier_block *nb); 748 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 749 750 #ifdef CONFIG_ACPI_GTDT 751 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 752 int acpi_gtdt_map_ppi(int type); 753 bool acpi_gtdt_c3stop(int type); 754 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 755 #endif 756 757 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 758 static inline void acpi_arch_set_root_pointer(u64 addr) 759 { 760 } 761 #endif 762 763 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 764 static inline u64 acpi_arch_get_root_pointer(void) 765 { 766 return 0; 767 } 768 #endif 769 770 int acpi_get_local_address(acpi_handle handle, u32 *addr); 771 const char *acpi_get_subsystem_id(acpi_handle handle); 772 773 #else /* !CONFIG_ACPI */ 774 775 #define acpi_disabled 1 776 777 #define ACPI_COMPANION(dev) (NULL) 778 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 779 #define ACPI_HANDLE(dev) (NULL) 780 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 781 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 782 783 #include <acpi/acpi_numa.h> 784 785 struct fwnode_handle; 786 787 static inline bool acpi_dev_found(const char *hid) 788 { 789 return false; 790 } 791 792 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 793 { 794 return false; 795 } 796 797 struct acpi_device; 798 799 static inline bool 800 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 801 { 802 return false; 803 } 804 805 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 806 { 807 return -ENODEV; 808 } 809 810 static inline struct acpi_device * 811 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 812 { 813 return NULL; 814 } 815 816 static inline bool acpi_reduced_hardware(void) 817 { 818 return false; 819 } 820 821 static inline void acpi_dev_put(struct acpi_device *adev) {} 822 823 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 824 { 825 return false; 826 } 827 828 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 829 { 830 return false; 831 } 832 833 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 834 { 835 return NULL; 836 } 837 838 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 839 { 840 return false; 841 } 842 843 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 844 { 845 return NULL; 846 } 847 848 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 849 const char *name) 850 { 851 return false; 852 } 853 854 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 855 { 856 return NULL; 857 } 858 859 static inline bool has_acpi_companion(struct device *dev) 860 { 861 return false; 862 } 863 864 static inline void acpi_preset_companion(struct device *dev, 865 struct acpi_device *parent, u64 addr) 866 { 867 } 868 869 static inline const char *acpi_dev_name(struct acpi_device *adev) 870 { 871 return NULL; 872 } 873 874 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 875 { 876 return NULL; 877 } 878 879 static inline void acpi_early_init(void) { } 880 static inline void acpi_subsystem_init(void) { } 881 882 static inline int early_acpi_boot_init(void) 883 { 884 return 0; 885 } 886 static inline int acpi_boot_init(void) 887 { 888 return 0; 889 } 890 891 static inline void acpi_boot_table_prepare(void) 892 { 893 } 894 895 static inline void acpi_boot_table_init(void) 896 { 897 } 898 899 static inline int acpi_mps_check(void) 900 { 901 return 0; 902 } 903 904 static inline int acpi_check_resource_conflict(struct resource *res) 905 { 906 return 0; 907 } 908 909 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 910 const char *name) 911 { 912 return 0; 913 } 914 915 struct acpi_table_header; 916 static inline int acpi_table_parse(char *id, 917 int (*handler)(struct acpi_table_header *)) 918 { 919 return -ENODEV; 920 } 921 922 static inline int acpi_nvs_register(__u64 start, __u64 size) 923 { 924 return 0; 925 } 926 927 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 928 void *data) 929 { 930 return 0; 931 } 932 933 struct acpi_device_id; 934 935 static inline const struct acpi_device_id *acpi_match_device( 936 const struct acpi_device_id *ids, const struct device *dev) 937 { 938 return NULL; 939 } 940 941 static inline const void *acpi_device_get_match_data(const struct device *dev) 942 { 943 return NULL; 944 } 945 946 static inline bool acpi_driver_match_device(struct device *dev, 947 const struct device_driver *drv) 948 { 949 return false; 950 } 951 952 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 953 const guid_t *guid, 954 u64 rev, u64 func, 955 union acpi_object *argv4) 956 { 957 return NULL; 958 } 959 960 static inline int acpi_device_uevent_modalias(struct device *dev, 961 struct kobj_uevent_env *env) 962 { 963 return -ENODEV; 964 } 965 966 static inline int acpi_device_modalias(struct device *dev, 967 char *buf, int size) 968 { 969 return -ENODEV; 970 } 971 972 static inline struct platform_device * 973 acpi_create_platform_device(struct acpi_device *adev, 974 const struct property_entry *properties) 975 { 976 return NULL; 977 } 978 979 static inline bool acpi_dma_supported(const struct acpi_device *adev) 980 { 981 return false; 982 } 983 984 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 985 { 986 return DEV_DMA_NOT_SUPPORTED; 987 } 988 989 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 990 { 991 return -ENODEV; 992 } 993 994 static inline int acpi_dma_configure(struct device *dev, 995 enum dev_dma_attr attr) 996 { 997 return 0; 998 } 999 1000 static inline int acpi_dma_configure_id(struct device *dev, 1001 enum dev_dma_attr attr, 1002 const u32 *input_id) 1003 { 1004 return 0; 1005 } 1006 1007 #define ACPI_PTR(_ptr) (NULL) 1008 1009 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1010 { 1011 } 1012 1013 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1014 { 1015 } 1016 1017 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1018 { 1019 return -EINVAL; 1020 } 1021 1022 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1023 { 1024 return -EINVAL; 1025 } 1026 1027 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1028 { 1029 return NULL; 1030 } 1031 1032 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1033 { 1034 return -ENODEV; 1035 } 1036 1037 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1038 { 1039 return ERR_PTR(-ENODEV); 1040 } 1041 1042 static inline int acpi_register_wakeup_handler(int wake_irq, 1043 bool (*wakeup)(void *context), void *context) 1044 { 1045 return -ENXIO; 1046 } 1047 1048 static inline void acpi_unregister_wakeup_handler( 1049 bool (*wakeup)(void *context), void *context) { } 1050 1051 struct acpi_osc_context; 1052 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1053 { 1054 return 0; 1055 } 1056 1057 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1058 { 1059 return 0; 1060 } 1061 1062 #endif /* !CONFIG_ACPI */ 1063 1064 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1065 int acpi_ioapic_add(acpi_handle root); 1066 #else 1067 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1068 #endif 1069 1070 #ifdef CONFIG_ACPI 1071 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1072 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1073 1074 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1075 u32 pm1a_control, u32 pm1b_control); 1076 1077 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1078 u32 val_a, u32 val_b)); 1079 1080 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1081 u32 val_a, u32 val_b); 1082 #ifdef CONFIG_X86 1083 struct acpi_s2idle_dev_ops { 1084 struct list_head list_node; 1085 void (*prepare)(void); 1086 void (*check)(void); 1087 void (*restore)(void); 1088 }; 1089 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1090 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1091 #endif /* CONFIG_X86 */ 1092 #ifndef CONFIG_IA64 1093 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1094 #else 1095 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1096 size_t size) 1097 { 1098 } 1099 #endif /* CONFIG_X86 */ 1100 #else 1101 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1102 #endif 1103 1104 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1105 int acpi_dev_suspend(struct device *dev, bool wakeup); 1106 int acpi_dev_resume(struct device *dev); 1107 int acpi_subsys_runtime_suspend(struct device *dev); 1108 int acpi_subsys_runtime_resume(struct device *dev); 1109 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1110 bool acpi_storage_d3(struct device *dev); 1111 bool acpi_dev_state_d0(struct device *dev); 1112 #else 1113 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1114 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1115 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1116 { 1117 return 0; 1118 } 1119 static inline bool acpi_storage_d3(struct device *dev) 1120 { 1121 return false; 1122 } 1123 static inline bool acpi_dev_state_d0(struct device *dev) 1124 { 1125 return true; 1126 } 1127 #endif 1128 1129 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1130 int acpi_subsys_prepare(struct device *dev); 1131 void acpi_subsys_complete(struct device *dev); 1132 int acpi_subsys_suspend_late(struct device *dev); 1133 int acpi_subsys_suspend_noirq(struct device *dev); 1134 int acpi_subsys_suspend(struct device *dev); 1135 int acpi_subsys_freeze(struct device *dev); 1136 int acpi_subsys_poweroff(struct device *dev); 1137 void acpi_ec_mark_gpe_for_wake(void); 1138 void acpi_ec_set_gpe_wake_mask(u8 action); 1139 #else 1140 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1141 static inline void acpi_subsys_complete(struct device *dev) {} 1142 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1143 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1144 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1145 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1146 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1147 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1148 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1149 #endif 1150 1151 #ifdef CONFIG_ACPI 1152 __printf(3, 4) 1153 void acpi_handle_printk(const char *level, acpi_handle handle, 1154 const char *fmt, ...); 1155 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1156 acpi_status status); 1157 #else /* !CONFIG_ACPI */ 1158 static inline __printf(3, 4) void 1159 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1160 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1161 const char *name, 1162 acpi_status status) {} 1163 #endif /* !CONFIG_ACPI */ 1164 1165 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1166 __printf(3, 4) 1167 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1168 #endif 1169 1170 /* 1171 * acpi_handle_<level>: Print message with ACPI prefix and object path 1172 * 1173 * These interfaces acquire the global namespace mutex to obtain an object 1174 * path. In interrupt context, it shows the object path as <n/a>. 1175 */ 1176 #define acpi_handle_emerg(handle, fmt, ...) \ 1177 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1178 #define acpi_handle_alert(handle, fmt, ...) \ 1179 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1180 #define acpi_handle_crit(handle, fmt, ...) \ 1181 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1182 #define acpi_handle_err(handle, fmt, ...) \ 1183 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1184 #define acpi_handle_warn(handle, fmt, ...) \ 1185 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1186 #define acpi_handle_notice(handle, fmt, ...) \ 1187 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1188 #define acpi_handle_info(handle, fmt, ...) \ 1189 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1190 1191 #if defined(DEBUG) 1192 #define acpi_handle_debug(handle, fmt, ...) \ 1193 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1194 #else 1195 #if defined(CONFIG_DYNAMIC_DEBUG) 1196 #define acpi_handle_debug(handle, fmt, ...) \ 1197 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1198 handle, pr_fmt(fmt), ##__VA_ARGS__) 1199 #else 1200 #define acpi_handle_debug(handle, fmt, ...) \ 1201 ({ \ 1202 if (0) \ 1203 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1204 0; \ 1205 }) 1206 #endif 1207 #endif 1208 1209 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1210 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1211 struct acpi_resource_gpio **agpio); 1212 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1213 struct acpi_resource_gpio **agpio); 1214 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1215 bool *wake_capable); 1216 #else 1217 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1218 struct acpi_resource_gpio **agpio) 1219 { 1220 return false; 1221 } 1222 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1223 struct acpi_resource_gpio **agpio) 1224 { 1225 return false; 1226 } 1227 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1228 int index, bool *wake_capable) 1229 { 1230 return -ENXIO; 1231 } 1232 #endif 1233 1234 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1235 bool *wake_capable) 1236 { 1237 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1238 } 1239 1240 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1241 int index) 1242 { 1243 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1244 } 1245 1246 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1247 { 1248 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1249 } 1250 1251 /* Device properties */ 1252 1253 #ifdef CONFIG_ACPI 1254 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1255 acpi_object_type type, const union acpi_object **obj); 1256 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1257 const char *name, size_t index, size_t num_args, 1258 struct fwnode_reference_args *args); 1259 1260 static inline int acpi_node_get_property_reference( 1261 const struct fwnode_handle *fwnode, 1262 const char *name, size_t index, 1263 struct fwnode_reference_args *args) 1264 { 1265 return __acpi_node_get_property_reference(fwnode, name, index, 1266 NR_FWNODE_REFERENCE_ARGS, args); 1267 } 1268 1269 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1270 { 1271 return !list_empty(&adev->data.properties); 1272 } 1273 1274 struct acpi_device_properties * 1275 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1276 union acpi_object *properties); 1277 1278 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1279 void **valptr); 1280 1281 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1282 struct fwnode_handle *child); 1283 1284 struct acpi_probe_entry; 1285 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1286 struct acpi_probe_entry *); 1287 1288 #define ACPI_TABLE_ID_LEN 5 1289 1290 /** 1291 * struct acpi_probe_entry - boot-time probing entry 1292 * @id: ACPI table name 1293 * @type: Optional subtable type to match 1294 * (if @id contains subtables) 1295 * @subtable_valid: Optional callback to check the validity of 1296 * the subtable 1297 * @probe_table: Callback to the driver being probed when table 1298 * match is successful 1299 * @probe_subtbl: Callback to the driver being probed when table and 1300 * subtable match (and optional callback is successful) 1301 * @driver_data: Sideband data provided back to the driver 1302 */ 1303 struct acpi_probe_entry { 1304 __u8 id[ACPI_TABLE_ID_LEN]; 1305 __u8 type; 1306 acpi_probe_entry_validate_subtbl subtable_valid; 1307 union { 1308 acpi_tbl_table_handler probe_table; 1309 acpi_tbl_entry_handler probe_subtbl; 1310 }; 1311 kernel_ulong_t driver_data; 1312 }; 1313 1314 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1315 valid, data, fn) \ 1316 static const struct acpi_probe_entry __acpi_probe_##name \ 1317 __used __section("__" #table "_acpi_probe_table") = { \ 1318 .id = table_id, \ 1319 .type = subtable, \ 1320 .subtable_valid = valid, \ 1321 .probe_table = fn, \ 1322 .driver_data = data, \ 1323 } 1324 1325 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1326 subtable, valid, data, fn) \ 1327 static const struct acpi_probe_entry __acpi_probe_##name \ 1328 __used __section("__" #table "_acpi_probe_table") = { \ 1329 .id = table_id, \ 1330 .type = subtable, \ 1331 .subtable_valid = valid, \ 1332 .probe_subtbl = fn, \ 1333 .driver_data = data, \ 1334 } 1335 1336 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1337 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1338 1339 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1340 1341 #define acpi_probe_device_table(t) \ 1342 ({ \ 1343 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1344 ACPI_PROBE_TABLE_END(t); \ 1345 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1346 (&ACPI_PROBE_TABLE_END(t) - \ 1347 &ACPI_PROBE_TABLE(t))); \ 1348 }) 1349 #else 1350 static inline int acpi_dev_get_property(struct acpi_device *adev, 1351 const char *name, acpi_object_type type, 1352 const union acpi_object **obj) 1353 { 1354 return -ENXIO; 1355 } 1356 1357 static inline int 1358 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1359 const char *name, size_t index, size_t num_args, 1360 struct fwnode_reference_args *args) 1361 { 1362 return -ENXIO; 1363 } 1364 1365 static inline int 1366 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1367 const char *name, size_t index, 1368 struct fwnode_reference_args *args) 1369 { 1370 return -ENXIO; 1371 } 1372 1373 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1374 const char *propname, 1375 void **valptr) 1376 { 1377 return -ENXIO; 1378 } 1379 1380 static inline struct fwnode_handle * 1381 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1382 struct fwnode_handle *child) 1383 { 1384 return NULL; 1385 } 1386 1387 static inline struct fwnode_handle * 1388 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1389 struct fwnode_handle *prev) 1390 { 1391 return ERR_PTR(-ENXIO); 1392 } 1393 1394 static inline int 1395 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1396 struct fwnode_handle **remote, 1397 struct fwnode_handle **port, 1398 struct fwnode_handle **endpoint) 1399 { 1400 return -ENXIO; 1401 } 1402 1403 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1404 static const void * __acpi_table_##name[] \ 1405 __attribute__((unused)) \ 1406 = { (void *) table_id, \ 1407 (void *) subtable, \ 1408 (void *) valid, \ 1409 (void *) fn, \ 1410 (void *) data } 1411 1412 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1413 #endif 1414 1415 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1416 void acpi_table_upgrade(void); 1417 #else 1418 static inline void acpi_table_upgrade(void) { } 1419 #endif 1420 1421 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1422 extern bool acpi_has_watchdog(void); 1423 #else 1424 static inline bool acpi_has_watchdog(void) { return false; } 1425 #endif 1426 1427 #ifdef CONFIG_ACPI_SPCR_TABLE 1428 extern bool qdf2400_e44_present; 1429 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1430 #else 1431 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1432 { 1433 return 0; 1434 } 1435 #endif 1436 1437 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1438 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1439 #else 1440 static inline 1441 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1442 { 1443 return -EINVAL; 1444 } 1445 #endif 1446 1447 #ifdef CONFIG_ACPI_LPIT 1448 int lpit_read_residency_count_address(u64 *address); 1449 #else 1450 static inline int lpit_read_residency_count_address(u64 *address) 1451 { 1452 return -EINVAL; 1453 } 1454 #endif 1455 1456 #ifdef CONFIG_ACPI_PPTT 1457 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1458 int find_acpi_cpu_topology(unsigned int cpu, int level); 1459 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1460 int find_acpi_cpu_topology_package(unsigned int cpu); 1461 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1462 #else 1463 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1464 { 1465 return -EINVAL; 1466 } 1467 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1468 { 1469 return -EINVAL; 1470 } 1471 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1472 { 1473 return -EINVAL; 1474 } 1475 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1476 { 1477 return -EINVAL; 1478 } 1479 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1480 { 1481 return -EINVAL; 1482 } 1483 #endif 1484 1485 #ifdef CONFIG_ACPI_PCC 1486 void acpi_init_pcc(void); 1487 #else 1488 static inline void acpi_init_pcc(void) { } 1489 #endif 1490 1491 #ifdef CONFIG_ACPI 1492 extern void acpi_device_notify(struct device *dev); 1493 extern void acpi_device_notify_remove(struct device *dev); 1494 #else 1495 static inline void acpi_device_notify(struct device *dev) { } 1496 static inline void acpi_device_notify_remove(struct device *dev) { } 1497 #endif 1498 1499 #endif /*_LINUX_ACPI_H*/ 1500