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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 38static 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 50static 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 63static 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 84static inline bool has_acpi_companion(struct device *dev) 85{ 86 return is_acpi_device_node(dev->fwnode); 87} 88 89static 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 95static inline const char *acpi_dev_name(struct acpi_device *adev) 96{ 97 return dev_name(&adev->dev); 98} 99 100struct device *acpi_get_first_physical_node(struct acpi_device *adev); 101 102enum 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 112extern enum acpi_irq_model_id acpi_irq_model; 113 114enum 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 123enum 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 */ 133union 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 140typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 141 142typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 143 const unsigned long end); 144 145typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 146 void *arg, const unsigned long end); 147 148/* Debugger support */ 149 150struct 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 158struct acpi_debugger { 159 const struct acpi_debugger_ops *ops; 160 struct module *owner; 161 struct mutex lock; 162}; 163 164#ifdef CONFIG_ACPI_DEBUGGER 165int __init acpi_debugger_init(void); 166int acpi_register_debugger(struct module *owner, 167 const struct acpi_debugger_ops *ops); 168void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 169int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 170ssize_t acpi_debugger_write_log(const char *msg); 171ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 172int acpi_debugger_wait_command_ready(void); 173int acpi_debugger_notify_command_complete(void); 174#else 175static inline int acpi_debugger_init(void) 176{ 177 return -ENODEV; 178} 179 180static inline int acpi_register_debugger(struct module *owner, 181 const struct acpi_debugger_ops *ops) 182{ 183 return -ENODEV; 184} 185 186static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 187{ 188} 189 190static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 191 void *context) 192{ 193 return -ENODEV; 194} 195 196static inline int acpi_debugger_write_log(const char *msg) 197{ 198 return -ENODEV; 199} 200 201static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 202{ 203 return -ENODEV; 204} 205 206static inline int acpi_debugger_wait_command_ready(void) 207{ 208 return -ENODEV; 209} 210 211static 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 221struct 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 229void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 230void __acpi_unmap_table(void __iomem *map, unsigned long size); 231int early_acpi_boot_init(void); 232int acpi_boot_init (void); 233void acpi_boot_table_prepare (void); 234void acpi_boot_table_init (void); 235int acpi_mps_check (void); 236int acpi_numa_init (void); 237 238int acpi_locate_initial_tables (void); 239void acpi_reserve_initial_tables (void); 240void acpi_table_init_complete (void); 241int 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 253int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 254int __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); 257int __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); 260int acpi_table_parse_madt(enum acpi_madt_type id, 261 acpi_tbl_entry_handler handler, 262 unsigned int max_entries); 263int __init_or_acpilib 264acpi_table_parse_cedt(enum acpi_cedt_type id, 265 acpi_tbl_entry_handler_arg handler_arg, void *arg); 266 267int acpi_parse_mcfg (struct acpi_table_header *header); 268void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 269 270/* the following numa functions are architecture-dependent */ 271void acpi_numa_slit_init (struct acpi_table_slit *slit); 272 273#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 274void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 275#else 276static inline void 277acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 278#endif 279 280void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 281 282#ifdef CONFIG_ARM64 283void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 284void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size); 285#else 286static inline void 287acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 288static inline void 289acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { } 290#endif 291 292int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 293 294#ifndef PHYS_CPUID_INVALID 295typedef u32 phys_cpuid_t; 296#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 297#endif 298 299static inline bool invalid_logical_cpuid(u32 cpuid) 300{ 301 return (int)cpuid < 0; 302} 303 304static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 305{ 306 return phys_id == PHYS_CPUID_INVALID; 307} 308 309/* Validate the processor object's proc_id */ 310bool acpi_duplicate_processor_id(int proc_id); 311/* Processor _CTS control */ 312struct acpi_processor_power; 313 314#ifdef CONFIG_ACPI_PROCESSOR_CSTATE 315bool acpi_processor_claim_cst_control(void); 316int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 317 struct acpi_processor_power *info); 318#else 319static inline bool acpi_processor_claim_cst_control(void) { return false; } 320static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 321 struct acpi_processor_power *info) 322{ 323 return -ENODEV; 324} 325#endif 326 327#ifdef CONFIG_ACPI_HOTPLUG_CPU 328/* Arch dependent functions for cpu hotplug support */ 329int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 330 int *pcpu); 331int acpi_unmap_cpu(int cpu); 332#endif /* CONFIG_ACPI_HOTPLUG_CPU */ 333 334#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 335int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 336#endif 337 338int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 339int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 340int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 341void acpi_irq_stats_init(void); 342extern u32 acpi_irq_handled; 343extern u32 acpi_irq_not_handled; 344extern unsigned int acpi_sci_irq; 345extern bool acpi_no_s5; 346#define INVALID_ACPI_IRQ ((unsigned)-1) 347static inline bool acpi_sci_irq_valid(void) 348{ 349 return acpi_sci_irq != INVALID_ACPI_IRQ; 350} 351 352extern int sbf_port; 353extern unsigned long acpi_realmode_flags; 354 355int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 356int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 357int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 358 359void acpi_set_irq_model(enum acpi_irq_model_id model, 360 struct fwnode_handle *(*)(u32)); 361void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 362 363struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 364 unsigned int size, 365 struct fwnode_handle *fwnode, 366 const struct irq_domain_ops *ops, 367 void *host_data); 368 369#ifdef CONFIG_X86_IO_APIC 370extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 371#else 372static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 373{ 374 return -1; 375} 376#endif 377/* 378 * This function undoes the effect of one call to acpi_register_gsi(). 379 * If this matches the last registration, any IRQ resources for gsi 380 * are freed. 381 */ 382void acpi_unregister_gsi (u32 gsi); 383 384struct pci_dev; 385 386int acpi_pci_irq_enable (struct pci_dev *dev); 387void acpi_penalize_isa_irq(int irq, int active); 388bool acpi_isa_irq_available(int irq); 389#ifdef CONFIG_PCI 390void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 391#else 392static inline void acpi_penalize_sci_irq(int irq, int trigger, 393 int polarity) 394{ 395} 396#endif 397void acpi_pci_irq_disable (struct pci_dev *dev); 398 399extern int ec_read(u8 addr, u8 *val); 400extern int ec_write(u8 addr, u8 val); 401extern int ec_transaction(u8 command, 402 const u8 *wdata, unsigned wdata_len, 403 u8 *rdata, unsigned rdata_len); 404extern acpi_handle ec_get_handle(void); 405 406extern bool acpi_is_pnp_device(struct acpi_device *); 407 408#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 409 410typedef void (*wmi_notify_handler) (u32 value, void *context); 411 412extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 413 u32 method_id, 414 const struct acpi_buffer *in, 415 struct acpi_buffer *out); 416extern acpi_status wmi_query_block(const char *guid, u8 instance, 417 struct acpi_buffer *out); 418extern acpi_status wmi_set_block(const char *guid, u8 instance, 419 const struct acpi_buffer *in); 420extern acpi_status wmi_install_notify_handler(const char *guid, 421 wmi_notify_handler handler, void *data); 422extern acpi_status wmi_remove_notify_handler(const char *guid); 423extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 424extern bool wmi_has_guid(const char *guid); 425extern char *wmi_get_acpi_device_uid(const char *guid); 426 427#endif /* CONFIG_ACPI_WMI */ 428 429#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 430#define ACPI_VIDEO_DEVICE_POSTING 0x0002 431#define ACPI_VIDEO_ROM_AVAILABLE 0x0004 432#define ACPI_VIDEO_BACKLIGHT 0x0008 433#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 434#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 435#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 436#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 437#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 438#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 439#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 440#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 441 442extern char acpi_video_backlight_string[]; 443extern long acpi_is_video_device(acpi_handle handle); 444extern int acpi_blacklisted(void); 445extern void acpi_osi_setup(char *str); 446extern bool acpi_osi_is_win8(void); 447 448#ifdef CONFIG_ACPI_NUMA 449int acpi_map_pxm_to_node(int pxm); 450int acpi_get_node(acpi_handle handle); 451 452/** 453 * pxm_to_online_node - Map proximity ID to online node 454 * @pxm: ACPI proximity ID 455 * 456 * This is similar to pxm_to_node(), but always returns an online 457 * node. When the mapped node from a given proximity ID is offline, it 458 * looks up the node distance table and returns the nearest online node. 459 * 460 * ACPI device drivers, which are called after the NUMA initialization has 461 * completed in the kernel, can call this interface to obtain their device 462 * NUMA topology from ACPI tables. Such drivers do not have to deal with 463 * offline nodes. A node may be offline when SRAT memory entry does not exist, 464 * or NUMA is disabled, ex. "numa=off" on x86. 465 */ 466static inline int pxm_to_online_node(int pxm) 467{ 468 int node = pxm_to_node(pxm); 469 470 return numa_map_to_online_node(node); 471} 472#else 473static inline int pxm_to_online_node(int pxm) 474{ 475 return 0; 476} 477static inline int acpi_map_pxm_to_node(int pxm) 478{ 479 return 0; 480} 481static inline int acpi_get_node(acpi_handle handle) 482{ 483 return 0; 484} 485#endif 486extern int acpi_paddr_to_node(u64 start_addr, u64 size); 487 488extern int pnpacpi_disabled; 489 490#define PXM_INVAL (-1) 491 492bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 493bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 494bool acpi_dev_resource_address_space(struct acpi_resource *ares, 495 struct resource_win *win); 496bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 497 struct resource_win *win); 498unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 499unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 500bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 501 struct resource *res); 502 503void acpi_dev_free_resource_list(struct list_head *list); 504int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 505 int (*preproc)(struct acpi_resource *, void *), 506 void *preproc_data); 507int acpi_dev_get_dma_resources(struct acpi_device *adev, 508 struct list_head *list); 509int acpi_dev_filter_resource_type(struct acpi_resource *ares, 510 unsigned long types); 511 512static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 513 void *arg) 514{ 515 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 516} 517 518struct acpi_device *acpi_resource_consumer(struct resource *res); 519 520int acpi_check_resource_conflict(const struct resource *res); 521 522int acpi_check_region(resource_size_t start, resource_size_t n, 523 const char *name); 524 525int acpi_resources_are_enforced(void); 526 527#ifdef CONFIG_HIBERNATION 528extern int acpi_check_s4_hw_signature; 529#endif 530 531#ifdef CONFIG_PM_SLEEP 532void __init acpi_old_suspend_ordering(void); 533void __init acpi_nvs_nosave(void); 534void __init acpi_nvs_nosave_s3(void); 535void __init acpi_sleep_no_blacklist(void); 536#endif /* CONFIG_PM_SLEEP */ 537 538int acpi_register_wakeup_handler( 539 int wake_irq, bool (*wakeup)(void *context), void *context); 540void acpi_unregister_wakeup_handler( 541 bool (*wakeup)(void *context), void *context); 542 543struct acpi_osc_context { 544 char *uuid_str; /* UUID string */ 545 int rev; 546 struct acpi_buffer cap; /* list of DWORD capabilities */ 547 struct acpi_buffer ret; /* free by caller if success */ 548}; 549 550acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 551 552/* Number of _OSC capability DWORDS depends on bridge type */ 553#define OSC_PCI_CAPABILITY_DWORDS 3 554#define OSC_CXL_CAPABILITY_DWORDS 5 555 556/* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 557#define OSC_QUERY_DWORD 0 /* DWORD 1 */ 558#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 559#define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 560#define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 561#define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 562 563/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 564#define OSC_QUERY_ENABLE 0x00000001 /* input */ 565#define OSC_REQUEST_ERROR 0x00000002 /* return */ 566#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 567#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 568#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 569 570/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 571#define OSC_SB_PAD_SUPPORT 0x00000001 572#define OSC_SB_PPC_OST_SUPPORT 0x00000002 573#define OSC_SB_PR3_SUPPORT 0x00000004 574#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 575#define OSC_SB_APEI_SUPPORT 0x00000010 576#define OSC_SB_CPC_SUPPORT 0x00000020 577#define OSC_SB_CPCV2_SUPPORT 0x00000040 578#define OSC_SB_PCLPI_SUPPORT 0x00000080 579#define OSC_SB_OSLPI_SUPPORT 0x00000100 580#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 581#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 582#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 583#define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 584#define OSC_SB_PRM_SUPPORT 0x00200000 585 586extern bool osc_sb_apei_support_acked; 587extern bool osc_pc_lpi_support_confirmed; 588extern bool osc_sb_native_usb4_support_confirmed; 589extern bool osc_sb_cppc2_support_acked; 590extern bool osc_cpc_flexible_adr_space_confirmed; 591 592/* USB4 Capabilities */ 593#define OSC_USB_USB3_TUNNELING 0x00000001 594#define OSC_USB_DP_TUNNELING 0x00000002 595#define OSC_USB_PCIE_TUNNELING 0x00000004 596#define OSC_USB_XDOMAIN 0x00000008 597 598extern u32 osc_sb_native_usb4_control; 599 600/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 601#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 602#define OSC_PCI_ASPM_SUPPORT 0x00000002 603#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 604#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 605#define OSC_PCI_MSI_SUPPORT 0x00000010 606#define OSC_PCI_EDR_SUPPORT 0x00000080 607#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 608 609/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 610#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 611#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 612#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 613#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 614#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 615#define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 616#define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 617 618/* CXL _OSC: Capabilities DWORD 4: Support Field */ 619#define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 620#define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 621#define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 622#define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 623 624/* CXL _OSC: Capabilities DWORD 5: Control Field */ 625#define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 626 627static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 628{ 629 u32 *ret = context->ret.pointer; 630 631 return ret[OSC_CONTROL_DWORD]; 632} 633 634static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 635{ 636 u32 *ret = context->ret.pointer; 637 638 return ret[OSC_EXT_CONTROL_DWORD]; 639} 640 641#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 642#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 643#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 644#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 645#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 646#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 647#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 648#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 649#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 650#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 651 652/* Enable _OST when all relevant hotplug operations are enabled */ 653#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 654 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 655 defined(CONFIG_ACPI_CONTAINER) 656#define ACPI_HOTPLUG_OST 657#endif 658 659/* _OST Source Event Code (OSPM Action) */ 660#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 661#define ACPI_OST_EC_OSPM_EJECT 0x103 662#define ACPI_OST_EC_OSPM_INSERTION 0x200 663 664/* _OST General Processing Status Code */ 665#define ACPI_OST_SC_SUCCESS 0x0 666#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 667#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 668 669/* _OST OS Shutdown Processing (0x100) Status Code */ 670#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 671#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 672#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 673#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 674 675/* _OST Ejection Request (0x3, 0x103) Status Code */ 676#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 677#define ACPI_OST_SC_DEVICE_IN_USE 0x81 678#define ACPI_OST_SC_DEVICE_BUSY 0x82 679#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 680#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 681 682/* _OST Insertion Request (0x200) Status Code */ 683#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 684#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 685#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 686 687enum acpi_predicate { 688 all_versions, 689 less_than_or_equal, 690 equal, 691 greater_than_or_equal, 692}; 693 694/* Table must be terminted by a NULL entry */ 695struct acpi_platform_list { 696 char oem_id[ACPI_OEM_ID_SIZE+1]; 697 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 698 u32 oem_revision; 699 char *table; 700 enum acpi_predicate pred; 701 char *reason; 702 u32 data; 703}; 704int acpi_match_platform_list(const struct acpi_platform_list *plat); 705 706extern void acpi_early_init(void); 707extern void acpi_subsystem_init(void); 708extern void arch_post_acpi_subsys_init(void); 709 710extern int acpi_nvs_register(__u64 start, __u64 size); 711 712extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 713 void *data); 714 715const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 716 const struct device *dev); 717 718const void *acpi_device_get_match_data(const struct device *dev); 719extern bool acpi_driver_match_device(struct device *dev, 720 const struct device_driver *drv); 721int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 722int acpi_device_modalias(struct device *, char *, int); 723 724struct platform_device *acpi_create_platform_device(struct acpi_device *, 725 const struct property_entry *); 726#define ACPI_PTR(_ptr) (_ptr) 727 728static inline void acpi_device_set_enumerated(struct acpi_device *adev) 729{ 730 adev->flags.visited = true; 731} 732 733static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 734{ 735 adev->flags.visited = false; 736} 737 738enum acpi_reconfig_event { 739 ACPI_RECONFIG_DEVICE_ADD = 0, 740 ACPI_RECONFIG_DEVICE_REMOVE, 741}; 742 743int acpi_reconfig_notifier_register(struct notifier_block *nb); 744int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 745 746#ifdef CONFIG_ACPI_GTDT 747int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 748int acpi_gtdt_map_ppi(int type); 749bool acpi_gtdt_c3stop(int type); 750int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 751#endif 752 753#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 754static inline void acpi_arch_set_root_pointer(u64 addr) 755{ 756} 757#endif 758 759#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 760static inline u64 acpi_arch_get_root_pointer(void) 761{ 762 return 0; 763} 764#endif 765 766int acpi_get_local_address(acpi_handle handle, u32 *addr); 767const char *acpi_get_subsystem_id(acpi_handle handle); 768 769#else /* !CONFIG_ACPI */ 770 771#define acpi_disabled 1 772 773#define ACPI_COMPANION(dev) (NULL) 774#define ACPI_COMPANION_SET(dev, adev) do { } while (0) 775#define ACPI_HANDLE(dev) (NULL) 776#define ACPI_HANDLE_FWNODE(fwnode) (NULL) 777#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 778 779#include <acpi/acpi_numa.h> 780 781struct fwnode_handle; 782 783static inline bool acpi_dev_found(const char *hid) 784{ 785 return false; 786} 787 788static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 789{ 790 return false; 791} 792 793struct acpi_device; 794 795static inline bool 796acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 797{ 798 return false; 799} 800 801static inline struct acpi_device * 802acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 803{ 804 return NULL; 805} 806 807static inline bool acpi_reduced_hardware(void) 808{ 809 return false; 810} 811 812static inline void acpi_dev_put(struct acpi_device *adev) {} 813 814static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 815{ 816 return false; 817} 818 819static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 820{ 821 return false; 822} 823 824static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 825{ 826 return NULL; 827} 828 829static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 830{ 831 return false; 832} 833 834static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 835{ 836 return NULL; 837} 838 839static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 840 const char *name) 841{ 842 return false; 843} 844 845static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 846{ 847 return NULL; 848} 849 850static inline bool has_acpi_companion(struct device *dev) 851{ 852 return false; 853} 854 855static inline void acpi_preset_companion(struct device *dev, 856 struct acpi_device *parent, u64 addr) 857{ 858} 859 860static inline const char *acpi_dev_name(struct acpi_device *adev) 861{ 862 return NULL; 863} 864 865static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 866{ 867 return NULL; 868} 869 870static inline void acpi_early_init(void) { } 871static inline void acpi_subsystem_init(void) { } 872 873static inline int early_acpi_boot_init(void) 874{ 875 return 0; 876} 877static inline int acpi_boot_init(void) 878{ 879 return 0; 880} 881 882static inline void acpi_boot_table_prepare(void) 883{ 884} 885 886static inline void acpi_boot_table_init(void) 887{ 888} 889 890static inline int acpi_mps_check(void) 891{ 892 return 0; 893} 894 895static inline int acpi_check_resource_conflict(struct resource *res) 896{ 897 return 0; 898} 899 900static inline int acpi_check_region(resource_size_t start, resource_size_t n, 901 const char *name) 902{ 903 return 0; 904} 905 906struct acpi_table_header; 907static inline int acpi_table_parse(char *id, 908 int (*handler)(struct acpi_table_header *)) 909{ 910 return -ENODEV; 911} 912 913static inline int acpi_nvs_register(__u64 start, __u64 size) 914{ 915 return 0; 916} 917 918static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 919 void *data) 920{ 921 return 0; 922} 923 924struct acpi_device_id; 925 926static inline const struct acpi_device_id *acpi_match_device( 927 const struct acpi_device_id *ids, const struct device *dev) 928{ 929 return NULL; 930} 931 932static inline const void *acpi_device_get_match_data(const struct device *dev) 933{ 934 return NULL; 935} 936 937static inline bool acpi_driver_match_device(struct device *dev, 938 const struct device_driver *drv) 939{ 940 return false; 941} 942 943static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 944 const guid_t *guid, 945 u64 rev, u64 func, 946 union acpi_object *argv4) 947{ 948 return NULL; 949} 950 951static inline int acpi_device_uevent_modalias(struct device *dev, 952 struct kobj_uevent_env *env) 953{ 954 return -ENODEV; 955} 956 957static inline int acpi_device_modalias(struct device *dev, 958 char *buf, int size) 959{ 960 return -ENODEV; 961} 962 963static inline struct platform_device * 964acpi_create_platform_device(struct acpi_device *adev, 965 const struct property_entry *properties) 966{ 967 return NULL; 968} 969 970static inline bool acpi_dma_supported(const struct acpi_device *adev) 971{ 972 return false; 973} 974 975static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 976{ 977 return DEV_DMA_NOT_SUPPORTED; 978} 979 980static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 981 u64 *offset, u64 *size) 982{ 983 return -ENODEV; 984} 985 986static inline int acpi_dma_configure(struct device *dev, 987 enum dev_dma_attr attr) 988{ 989 return 0; 990} 991 992static inline int acpi_dma_configure_id(struct device *dev, 993 enum dev_dma_attr attr, 994 const u32 *input_id) 995{ 996 return 0; 997} 998 999#define ACPI_PTR(_ptr) (NULL) 1000 1001static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1002{ 1003} 1004 1005static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1006{ 1007} 1008 1009static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1010{ 1011 return -EINVAL; 1012} 1013 1014static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1015{ 1016 return -EINVAL; 1017} 1018 1019static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1020{ 1021 return NULL; 1022} 1023 1024static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1025{ 1026 return -ENODEV; 1027} 1028 1029static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1030{ 1031 return ERR_PTR(-ENODEV); 1032} 1033 1034static inline int acpi_register_wakeup_handler(int wake_irq, 1035 bool (*wakeup)(void *context), void *context) 1036{ 1037 return -ENXIO; 1038} 1039 1040static inline void acpi_unregister_wakeup_handler( 1041 bool (*wakeup)(void *context), void *context) { } 1042 1043struct acpi_osc_context; 1044static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1045{ 1046 return 0; 1047} 1048 1049static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1050{ 1051 return 0; 1052} 1053 1054#endif /* !CONFIG_ACPI */ 1055 1056#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1057int acpi_ioapic_add(acpi_handle root); 1058#else 1059static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1060#endif 1061 1062#ifdef CONFIG_ACPI 1063void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1064 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1065 1066acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1067 u32 pm1a_control, u32 pm1b_control); 1068 1069void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1070 u32 val_a, u32 val_b)); 1071 1072acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1073 u32 val_a, u32 val_b); 1074#ifdef CONFIG_X86 1075struct acpi_s2idle_dev_ops { 1076 struct list_head list_node; 1077 void (*prepare)(void); 1078 void (*restore)(void); 1079}; 1080int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1081void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1082#endif /* CONFIG_X86 */ 1083#ifndef CONFIG_IA64 1084void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1085#else 1086static inline void arch_reserve_mem_area(acpi_physical_address addr, 1087 size_t size) 1088{ 1089} 1090#endif /* CONFIG_X86 */ 1091#else 1092#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1093#endif 1094 1095#if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1096int acpi_dev_suspend(struct device *dev, bool wakeup); 1097int acpi_dev_resume(struct device *dev); 1098int acpi_subsys_runtime_suspend(struct device *dev); 1099int acpi_subsys_runtime_resume(struct device *dev); 1100int acpi_dev_pm_attach(struct device *dev, bool power_on); 1101bool acpi_storage_d3(struct device *dev); 1102bool acpi_dev_state_d0(struct device *dev); 1103#else 1104static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1105static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1106static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1107{ 1108 return 0; 1109} 1110static inline bool acpi_storage_d3(struct device *dev) 1111{ 1112 return false; 1113} 1114static inline bool acpi_dev_state_d0(struct device *dev) 1115{ 1116 return true; 1117} 1118#endif 1119 1120#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1121int acpi_subsys_prepare(struct device *dev); 1122void acpi_subsys_complete(struct device *dev); 1123int acpi_subsys_suspend_late(struct device *dev); 1124int acpi_subsys_suspend_noirq(struct device *dev); 1125int acpi_subsys_suspend(struct device *dev); 1126int acpi_subsys_freeze(struct device *dev); 1127int acpi_subsys_poweroff(struct device *dev); 1128void acpi_ec_mark_gpe_for_wake(void); 1129void acpi_ec_set_gpe_wake_mask(u8 action); 1130#else 1131static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1132static inline void acpi_subsys_complete(struct device *dev) {} 1133static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1134static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1135static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1136static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1137static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1138static inline void acpi_ec_mark_gpe_for_wake(void) {} 1139static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1140#endif 1141 1142#ifdef CONFIG_ACPI 1143__printf(3, 4) 1144void acpi_handle_printk(const char *level, acpi_handle handle, 1145 const char *fmt, ...); 1146void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1147 acpi_status status); 1148#else /* !CONFIG_ACPI */ 1149static inline __printf(3, 4) void 1150acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1151static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1152 const char *name, 1153 acpi_status status) {} 1154#endif /* !CONFIG_ACPI */ 1155 1156#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1157__printf(3, 4) 1158void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1159#endif 1160 1161/* 1162 * acpi_handle_<level>: Print message with ACPI prefix and object path 1163 * 1164 * These interfaces acquire the global namespace mutex to obtain an object 1165 * path. In interrupt context, it shows the object path as <n/a>. 1166 */ 1167#define acpi_handle_emerg(handle, fmt, ...) \ 1168 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1169#define acpi_handle_alert(handle, fmt, ...) \ 1170 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1171#define acpi_handle_crit(handle, fmt, ...) \ 1172 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1173#define acpi_handle_err(handle, fmt, ...) \ 1174 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1175#define acpi_handle_warn(handle, fmt, ...) \ 1176 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1177#define acpi_handle_notice(handle, fmt, ...) \ 1178 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1179#define acpi_handle_info(handle, fmt, ...) \ 1180 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1181 1182#if defined(DEBUG) 1183#define acpi_handle_debug(handle, fmt, ...) \ 1184 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1185#else 1186#if defined(CONFIG_DYNAMIC_DEBUG) 1187#define acpi_handle_debug(handle, fmt, ...) \ 1188 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1189 handle, pr_fmt(fmt), ##__VA_ARGS__) 1190#else 1191#define acpi_handle_debug(handle, fmt, ...) \ 1192({ \ 1193 if (0) \ 1194 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1195 0; \ 1196}) 1197#endif 1198#endif 1199 1200#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1201bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1202 struct acpi_resource_gpio **agpio); 1203bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1204 struct acpi_resource_gpio **agpio); 1205int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1206#else 1207static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1208 struct acpi_resource_gpio **agpio) 1209{ 1210 return false; 1211} 1212static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1213 struct acpi_resource_gpio **agpio) 1214{ 1215 return false; 1216} 1217static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1218 const char *name, int index) 1219{ 1220 return -ENXIO; 1221} 1222#endif 1223 1224static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1225{ 1226 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1227} 1228 1229/* Device properties */ 1230 1231#ifdef CONFIG_ACPI 1232int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1233 acpi_object_type type, const union acpi_object **obj); 1234int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1235 const char *name, size_t index, size_t num_args, 1236 struct fwnode_reference_args *args); 1237 1238static inline int acpi_node_get_property_reference( 1239 const struct fwnode_handle *fwnode, 1240 const char *name, size_t index, 1241 struct fwnode_reference_args *args) 1242{ 1243 return __acpi_node_get_property_reference(fwnode, name, index, 1244 NR_FWNODE_REFERENCE_ARGS, args); 1245} 1246 1247static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1248{ 1249 return !list_empty(&adev->data.properties); 1250} 1251 1252struct acpi_device_properties * 1253acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1254 union acpi_object *properties); 1255 1256int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1257 void **valptr); 1258 1259struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1260 struct fwnode_handle *child); 1261 1262struct acpi_probe_entry; 1263typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1264 struct acpi_probe_entry *); 1265 1266#define ACPI_TABLE_ID_LEN 5 1267 1268/** 1269 * struct acpi_probe_entry - boot-time probing entry 1270 * @id: ACPI table name 1271 * @type: Optional subtable type to match 1272 * (if @id contains subtables) 1273 * @subtable_valid: Optional callback to check the validity of 1274 * the subtable 1275 * @probe_table: Callback to the driver being probed when table 1276 * match is successful 1277 * @probe_subtbl: Callback to the driver being probed when table and 1278 * subtable match (and optional callback is successful) 1279 * @driver_data: Sideband data provided back to the driver 1280 */ 1281struct acpi_probe_entry { 1282 __u8 id[ACPI_TABLE_ID_LEN]; 1283 __u8 type; 1284 acpi_probe_entry_validate_subtbl subtable_valid; 1285 union { 1286 acpi_tbl_table_handler probe_table; 1287 acpi_tbl_entry_handler probe_subtbl; 1288 }; 1289 kernel_ulong_t driver_data; 1290}; 1291 1292#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1293 valid, data, fn) \ 1294 static const struct acpi_probe_entry __acpi_probe_##name \ 1295 __used __section("__" #table "_acpi_probe_table") = { \ 1296 .id = table_id, \ 1297 .type = subtable, \ 1298 .subtable_valid = valid, \ 1299 .probe_table = fn, \ 1300 .driver_data = data, \ 1301 } 1302 1303#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1304 subtable, valid, data, fn) \ 1305 static const struct acpi_probe_entry __acpi_probe_##name \ 1306 __used __section("__" #table "_acpi_probe_table") = { \ 1307 .id = table_id, \ 1308 .type = subtable, \ 1309 .subtable_valid = valid, \ 1310 .probe_subtbl = fn, \ 1311 .driver_data = data, \ 1312 } 1313 1314#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1315#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1316 1317int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1318 1319#define acpi_probe_device_table(t) \ 1320 ({ \ 1321 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1322 ACPI_PROBE_TABLE_END(t); \ 1323 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1324 (&ACPI_PROBE_TABLE_END(t) - \ 1325 &ACPI_PROBE_TABLE(t))); \ 1326 }) 1327#else 1328static inline int acpi_dev_get_property(struct acpi_device *adev, 1329 const char *name, acpi_object_type type, 1330 const union acpi_object **obj) 1331{ 1332 return -ENXIO; 1333} 1334 1335static inline int 1336__acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1337 const char *name, size_t index, size_t num_args, 1338 struct fwnode_reference_args *args) 1339{ 1340 return -ENXIO; 1341} 1342 1343static inline int 1344acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1345 const char *name, size_t index, 1346 struct fwnode_reference_args *args) 1347{ 1348 return -ENXIO; 1349} 1350 1351static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1352 const char *propname, 1353 void **valptr) 1354{ 1355 return -ENXIO; 1356} 1357 1358static inline struct fwnode_handle * 1359acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1360 struct fwnode_handle *child) 1361{ 1362 return NULL; 1363} 1364 1365static inline struct fwnode_handle * 1366acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1367 struct fwnode_handle *prev) 1368{ 1369 return ERR_PTR(-ENXIO); 1370} 1371 1372static inline int 1373acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1374 struct fwnode_handle **remote, 1375 struct fwnode_handle **port, 1376 struct fwnode_handle **endpoint) 1377{ 1378 return -ENXIO; 1379} 1380 1381#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1382 static const void * __acpi_table_##name[] \ 1383 __attribute__((unused)) \ 1384 = { (void *) table_id, \ 1385 (void *) subtable, \ 1386 (void *) valid, \ 1387 (void *) fn, \ 1388 (void *) data } 1389 1390#define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1391#endif 1392 1393#ifdef CONFIG_ACPI_TABLE_UPGRADE 1394void acpi_table_upgrade(void); 1395#else 1396static inline void acpi_table_upgrade(void) { } 1397#endif 1398 1399#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1400extern bool acpi_has_watchdog(void); 1401#else 1402static inline bool acpi_has_watchdog(void) { return false; } 1403#endif 1404 1405#ifdef CONFIG_ACPI_SPCR_TABLE 1406extern bool qdf2400_e44_present; 1407int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1408#else 1409static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1410{ 1411 return 0; 1412} 1413#endif 1414 1415#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1416int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1417#else 1418static inline 1419int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1420{ 1421 return -EINVAL; 1422} 1423#endif 1424 1425#ifdef CONFIG_ACPI_LPIT 1426int lpit_read_residency_count_address(u64 *address); 1427#else 1428static inline int lpit_read_residency_count_address(u64 *address) 1429{ 1430 return -EINVAL; 1431} 1432#endif 1433 1434#ifdef CONFIG_ACPI_PPTT 1435int acpi_pptt_cpu_is_thread(unsigned int cpu); 1436int find_acpi_cpu_topology(unsigned int cpu, int level); 1437int find_acpi_cpu_topology_cluster(unsigned int cpu); 1438int find_acpi_cpu_topology_package(unsigned int cpu); 1439int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1440#else 1441static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1442{ 1443 return -EINVAL; 1444} 1445static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1446{ 1447 return -EINVAL; 1448} 1449static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1450{ 1451 return -EINVAL; 1452} 1453static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1454{ 1455 return -EINVAL; 1456} 1457static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1458{ 1459 return -EINVAL; 1460} 1461#endif 1462 1463#ifdef CONFIG_ACPI_PCC 1464void acpi_init_pcc(void); 1465#else 1466static inline void acpi_init_pcc(void) { } 1467#endif 1468 1469#ifdef CONFIG_ACPI 1470extern void acpi_device_notify(struct device *dev); 1471extern void acpi_device_notify_remove(struct device *dev); 1472#else 1473static inline void acpi_device_notify(struct device *dev) { } 1474static inline void acpi_device_notify_remove(struct device *dev) { } 1475#endif 1476 1477#endif /*_LINUX_ACPI_H*/