acpi.h (42605B)
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_COUNT 109}; 110 111extern enum acpi_irq_model_id acpi_irq_model; 112 113enum acpi_interrupt_id { 114 ACPI_INTERRUPT_PMI = 1, 115 ACPI_INTERRUPT_INIT, 116 ACPI_INTERRUPT_CPEI, 117 ACPI_INTERRUPT_COUNT 118}; 119 120#define ACPI_SPACE_MEM 0 121 122enum acpi_address_range_id { 123 ACPI_ADDRESS_RANGE_MEMORY = 1, 124 ACPI_ADDRESS_RANGE_RESERVED = 2, 125 ACPI_ADDRESS_RANGE_ACPI = 3, 126 ACPI_ADDRESS_RANGE_NVS = 4, 127 ACPI_ADDRESS_RANGE_COUNT 128}; 129 130 131/* Table Handlers */ 132union acpi_subtable_headers { 133 struct acpi_subtable_header common; 134 struct acpi_hmat_structure hmat; 135 struct acpi_prmt_module_header prmt; 136 struct acpi_cedt_header cedt; 137}; 138 139typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 140 141typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 142 const unsigned long end); 143 144typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 145 void *arg, const unsigned long end); 146 147/* Debugger support */ 148 149struct acpi_debugger_ops { 150 int (*create_thread)(acpi_osd_exec_callback function, void *context); 151 ssize_t (*write_log)(const char *msg); 152 ssize_t (*read_cmd)(char *buffer, size_t length); 153 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 154 int (*notify_command_complete)(void); 155}; 156 157struct acpi_debugger { 158 const struct acpi_debugger_ops *ops; 159 struct module *owner; 160 struct mutex lock; 161}; 162 163#ifdef CONFIG_ACPI_DEBUGGER 164int __init acpi_debugger_init(void); 165int acpi_register_debugger(struct module *owner, 166 const struct acpi_debugger_ops *ops); 167void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 168int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 169ssize_t acpi_debugger_write_log(const char *msg); 170ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 171int acpi_debugger_wait_command_ready(void); 172int acpi_debugger_notify_command_complete(void); 173#else 174static inline int acpi_debugger_init(void) 175{ 176 return -ENODEV; 177} 178 179static inline int acpi_register_debugger(struct module *owner, 180 const struct acpi_debugger_ops *ops) 181{ 182 return -ENODEV; 183} 184 185static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 186{ 187} 188 189static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 190 void *context) 191{ 192 return -ENODEV; 193} 194 195static inline int acpi_debugger_write_log(const char *msg) 196{ 197 return -ENODEV; 198} 199 200static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 201{ 202 return -ENODEV; 203} 204 205static inline int acpi_debugger_wait_command_ready(void) 206{ 207 return -ENODEV; 208} 209 210static inline int acpi_debugger_notify_command_complete(void) 211{ 212 return -ENODEV; 213} 214#endif 215 216#define BAD_MADT_ENTRY(entry, end) ( \ 217 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 218 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 219 220struct acpi_subtable_proc { 221 int id; 222 acpi_tbl_entry_handler handler; 223 acpi_tbl_entry_handler_arg handler_arg; 224 void *arg; 225 int count; 226}; 227 228void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 229void __acpi_unmap_table(void __iomem *map, unsigned long size); 230int early_acpi_boot_init(void); 231int acpi_boot_init (void); 232void acpi_boot_table_prepare (void); 233void acpi_boot_table_init (void); 234int acpi_mps_check (void); 235int acpi_numa_init (void); 236 237int acpi_locate_initial_tables (void); 238void acpi_reserve_initial_tables (void); 239void acpi_table_init_complete (void); 240int acpi_table_init (void); 241 242#ifdef CONFIG_ACPI_TABLE_LIB 243#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 244#define __init_or_acpilib 245#define __initdata_or_acpilib 246#else 247#define EXPORT_SYMBOL_ACPI_LIB(x) 248#define __init_or_acpilib __init 249#define __initdata_or_acpilib __initdata 250#endif 251 252int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 253int __init_or_acpilib acpi_table_parse_entries(char *id, 254 unsigned long table_size, int entry_id, 255 acpi_tbl_entry_handler handler, unsigned int max_entries); 256int __init_or_acpilib acpi_table_parse_entries_array(char *id, 257 unsigned long table_size, struct acpi_subtable_proc *proc, 258 int proc_num, unsigned int max_entries); 259int acpi_table_parse_madt(enum acpi_madt_type id, 260 acpi_tbl_entry_handler handler, 261 unsigned int max_entries); 262int __init_or_acpilib 263acpi_table_parse_cedt(enum acpi_cedt_type id, 264 acpi_tbl_entry_handler_arg handler_arg, void *arg); 265 266int acpi_parse_mcfg (struct acpi_table_header *header); 267void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 268 269/* the following numa functions are architecture-dependent */ 270void acpi_numa_slit_init (struct acpi_table_slit *slit); 271 272#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 273void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 274#else 275static inline void 276acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 277#endif 278 279void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 280 281#ifdef CONFIG_ARM64 282void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 283void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size); 284#else 285static inline void 286acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 287static inline void 288acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { } 289#endif 290 291int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 292 293#ifndef PHYS_CPUID_INVALID 294typedef u32 phys_cpuid_t; 295#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 296#endif 297 298static inline bool invalid_logical_cpuid(u32 cpuid) 299{ 300 return (int)cpuid < 0; 301} 302 303static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 304{ 305 return phys_id == PHYS_CPUID_INVALID; 306} 307 308/* Validate the processor object's proc_id */ 309bool acpi_duplicate_processor_id(int proc_id); 310/* Processor _CTS control */ 311struct acpi_processor_power; 312 313#ifdef CONFIG_ACPI_PROCESSOR_CSTATE 314bool acpi_processor_claim_cst_control(void); 315int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 316 struct acpi_processor_power *info); 317#else 318static inline bool acpi_processor_claim_cst_control(void) { return false; } 319static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 320 struct acpi_processor_power *info) 321{ 322 return -ENODEV; 323} 324#endif 325 326#ifdef CONFIG_ACPI_HOTPLUG_CPU 327/* Arch dependent functions for cpu hotplug support */ 328int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 329 int *pcpu); 330int acpi_unmap_cpu(int cpu); 331#endif /* CONFIG_ACPI_HOTPLUG_CPU */ 332 333#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 334int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 335#endif 336 337int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 338int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 339int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 340void acpi_irq_stats_init(void); 341extern u32 acpi_irq_handled; 342extern u32 acpi_irq_not_handled; 343extern unsigned int acpi_sci_irq; 344extern bool acpi_no_s5; 345#define INVALID_ACPI_IRQ ((unsigned)-1) 346static inline bool acpi_sci_irq_valid(void) 347{ 348 return acpi_sci_irq != INVALID_ACPI_IRQ; 349} 350 351extern int sbf_port; 352extern unsigned long acpi_realmode_flags; 353 354int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 355int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 356int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 357 358void acpi_set_irq_model(enum acpi_irq_model_id model, 359 struct fwnode_handle *fwnode); 360 361struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 362 unsigned int size, 363 struct fwnode_handle *fwnode, 364 const struct irq_domain_ops *ops, 365 void *host_data); 366 367#ifdef CONFIG_X86_IO_APIC 368extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 369#else 370static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 371{ 372 return -1; 373} 374#endif 375/* 376 * This function undoes the effect of one call to acpi_register_gsi(). 377 * If this matches the last registration, any IRQ resources for gsi 378 * are freed. 379 */ 380void acpi_unregister_gsi (u32 gsi); 381 382struct pci_dev; 383 384int acpi_pci_irq_enable (struct pci_dev *dev); 385void acpi_penalize_isa_irq(int irq, int active); 386bool acpi_isa_irq_available(int irq); 387#ifdef CONFIG_PCI 388void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 389#else 390static inline void acpi_penalize_sci_irq(int irq, int trigger, 391 int polarity) 392{ 393} 394#endif 395void acpi_pci_irq_disable (struct pci_dev *dev); 396 397extern int ec_read(u8 addr, u8 *val); 398extern int ec_write(u8 addr, u8 val); 399extern int ec_transaction(u8 command, 400 const u8 *wdata, unsigned wdata_len, 401 u8 *rdata, unsigned rdata_len); 402extern acpi_handle ec_get_handle(void); 403 404extern bool acpi_is_pnp_device(struct acpi_device *); 405 406#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 407 408typedef void (*wmi_notify_handler) (u32 value, void *context); 409 410extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 411 u32 method_id, 412 const struct acpi_buffer *in, 413 struct acpi_buffer *out); 414extern acpi_status wmi_query_block(const char *guid, u8 instance, 415 struct acpi_buffer *out); 416extern acpi_status wmi_set_block(const char *guid, u8 instance, 417 const struct acpi_buffer *in); 418extern acpi_status wmi_install_notify_handler(const char *guid, 419 wmi_notify_handler handler, void *data); 420extern acpi_status wmi_remove_notify_handler(const char *guid); 421extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 422extern bool wmi_has_guid(const char *guid); 423extern char *wmi_get_acpi_device_uid(const char *guid); 424 425#endif /* CONFIG_ACPI_WMI */ 426 427#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 428#define ACPI_VIDEO_DEVICE_POSTING 0x0002 429#define ACPI_VIDEO_ROM_AVAILABLE 0x0004 430#define ACPI_VIDEO_BACKLIGHT 0x0008 431#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 432#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 433#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 434#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 435#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 436#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 437#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 438#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 439 440extern char acpi_video_backlight_string[]; 441extern long acpi_is_video_device(acpi_handle handle); 442extern int acpi_blacklisted(void); 443extern void acpi_osi_setup(char *str); 444extern bool acpi_osi_is_win8(void); 445 446#ifdef CONFIG_ACPI_NUMA 447int acpi_map_pxm_to_node(int pxm); 448int acpi_get_node(acpi_handle handle); 449 450/** 451 * pxm_to_online_node - Map proximity ID to online node 452 * @pxm: ACPI proximity ID 453 * 454 * This is similar to pxm_to_node(), but always returns an online 455 * node. When the mapped node from a given proximity ID is offline, it 456 * looks up the node distance table and returns the nearest online node. 457 * 458 * ACPI device drivers, which are called after the NUMA initialization has 459 * completed in the kernel, can call this interface to obtain their device 460 * NUMA topology from ACPI tables. Such drivers do not have to deal with 461 * offline nodes. A node may be offline when SRAT memory entry does not exist, 462 * or NUMA is disabled, ex. "numa=off" on x86. 463 */ 464static inline int pxm_to_online_node(int pxm) 465{ 466 int node = pxm_to_node(pxm); 467 468 return numa_map_to_online_node(node); 469} 470#else 471static inline int pxm_to_online_node(int pxm) 472{ 473 return 0; 474} 475static inline int acpi_map_pxm_to_node(int pxm) 476{ 477 return 0; 478} 479static inline int acpi_get_node(acpi_handle handle) 480{ 481 return 0; 482} 483#endif 484extern int acpi_paddr_to_node(u64 start_addr, u64 size); 485 486extern int pnpacpi_disabled; 487 488#define PXM_INVAL (-1) 489 490bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 491bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 492bool acpi_dev_resource_address_space(struct acpi_resource *ares, 493 struct resource_win *win); 494bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 495 struct resource_win *win); 496unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 497unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 498bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 499 struct resource *res); 500 501void acpi_dev_free_resource_list(struct list_head *list); 502int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 503 int (*preproc)(struct acpi_resource *, void *), 504 void *preproc_data); 505int acpi_dev_get_dma_resources(struct acpi_device *adev, 506 struct list_head *list); 507int acpi_dev_filter_resource_type(struct acpi_resource *ares, 508 unsigned long types); 509 510static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 511 void *arg) 512{ 513 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 514} 515 516struct acpi_device *acpi_resource_consumer(struct resource *res); 517 518int acpi_check_resource_conflict(const struct resource *res); 519 520int acpi_check_region(resource_size_t start, resource_size_t n, 521 const char *name); 522 523int acpi_resources_are_enforced(void); 524 525#ifdef CONFIG_HIBERNATION 526extern int acpi_check_s4_hw_signature; 527#endif 528 529#ifdef CONFIG_PM_SLEEP 530void __init acpi_old_suspend_ordering(void); 531void __init acpi_nvs_nosave(void); 532void __init acpi_nvs_nosave_s3(void); 533void __init acpi_sleep_no_blacklist(void); 534#endif /* CONFIG_PM_SLEEP */ 535 536int acpi_register_wakeup_handler( 537 int wake_irq, bool (*wakeup)(void *context), void *context); 538void acpi_unregister_wakeup_handler( 539 bool (*wakeup)(void *context), void *context); 540 541struct acpi_osc_context { 542 char *uuid_str; /* UUID string */ 543 int rev; 544 struct acpi_buffer cap; /* list of DWORD capabilities */ 545 struct acpi_buffer ret; /* free by caller if success */ 546}; 547 548acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 549 550/* Number of _OSC capability DWORDS depends on bridge type */ 551#define OSC_PCI_CAPABILITY_DWORDS 3 552#define OSC_CXL_CAPABILITY_DWORDS 5 553 554/* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 555#define OSC_QUERY_DWORD 0 /* DWORD 1 */ 556#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 557#define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 558#define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 559#define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 560 561/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 562#define OSC_QUERY_ENABLE 0x00000001 /* input */ 563#define OSC_REQUEST_ERROR 0x00000002 /* return */ 564#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 565#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 566#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 567 568/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 569#define OSC_SB_PAD_SUPPORT 0x00000001 570#define OSC_SB_PPC_OST_SUPPORT 0x00000002 571#define OSC_SB_PR3_SUPPORT 0x00000004 572#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 573#define OSC_SB_APEI_SUPPORT 0x00000010 574#define OSC_SB_CPC_SUPPORT 0x00000020 575#define OSC_SB_CPCV2_SUPPORT 0x00000040 576#define OSC_SB_PCLPI_SUPPORT 0x00000080 577#define OSC_SB_OSLPI_SUPPORT 0x00000100 578#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 579#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 580#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 581#define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 582#define OSC_SB_PRM_SUPPORT 0x00200000 583 584extern bool osc_sb_apei_support_acked; 585extern bool osc_pc_lpi_support_confirmed; 586extern bool osc_sb_native_usb4_support_confirmed; 587extern bool osc_sb_cppc2_support_acked; 588extern bool osc_cpc_flexible_adr_space_confirmed; 589 590/* USB4 Capabilities */ 591#define OSC_USB_USB3_TUNNELING 0x00000001 592#define OSC_USB_DP_TUNNELING 0x00000002 593#define OSC_USB_PCIE_TUNNELING 0x00000004 594#define OSC_USB_XDOMAIN 0x00000008 595 596extern u32 osc_sb_native_usb4_control; 597 598/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 599#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 600#define OSC_PCI_ASPM_SUPPORT 0x00000002 601#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 602#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 603#define OSC_PCI_MSI_SUPPORT 0x00000010 604#define OSC_PCI_EDR_SUPPORT 0x00000080 605#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 606 607/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 608#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 609#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 610#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 611#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 612#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 613#define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 614#define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 615 616/* CXL _OSC: Capabilities DWORD 4: Support Field */ 617#define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 618#define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 619#define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 620#define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 621 622/* CXL _OSC: Capabilities DWORD 5: Control Field */ 623#define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 624 625static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 626{ 627 u32 *ret = context->ret.pointer; 628 629 return ret[OSC_CONTROL_DWORD]; 630} 631 632static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 633{ 634 u32 *ret = context->ret.pointer; 635 636 return ret[OSC_EXT_CONTROL_DWORD]; 637} 638 639#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 640#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 641#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 642#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 643#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 644#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 645#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 646#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 647#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 648#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 649 650/* Enable _OST when all relevant hotplug operations are enabled */ 651#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 652 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 653 defined(CONFIG_ACPI_CONTAINER) 654#define ACPI_HOTPLUG_OST 655#endif 656 657/* _OST Source Event Code (OSPM Action) */ 658#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 659#define ACPI_OST_EC_OSPM_EJECT 0x103 660#define ACPI_OST_EC_OSPM_INSERTION 0x200 661 662/* _OST General Processing Status Code */ 663#define ACPI_OST_SC_SUCCESS 0x0 664#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 665#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 666 667/* _OST OS Shutdown Processing (0x100) Status Code */ 668#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 669#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 670#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 671#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 672 673/* _OST Ejection Request (0x3, 0x103) Status Code */ 674#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 675#define ACPI_OST_SC_DEVICE_IN_USE 0x81 676#define ACPI_OST_SC_DEVICE_BUSY 0x82 677#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 678#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 679 680/* _OST Insertion Request (0x200) Status Code */ 681#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 682#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 683#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 684 685enum acpi_predicate { 686 all_versions, 687 less_than_or_equal, 688 equal, 689 greater_than_or_equal, 690}; 691 692/* Table must be terminted by a NULL entry */ 693struct acpi_platform_list { 694 char oem_id[ACPI_OEM_ID_SIZE+1]; 695 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 696 u32 oem_revision; 697 char *table; 698 enum acpi_predicate pred; 699 char *reason; 700 u32 data; 701}; 702int acpi_match_platform_list(const struct acpi_platform_list *plat); 703 704extern void acpi_early_init(void); 705extern void acpi_subsystem_init(void); 706extern void arch_post_acpi_subsys_init(void); 707 708extern int acpi_nvs_register(__u64 start, __u64 size); 709 710extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 711 void *data); 712 713const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 714 const struct device *dev); 715 716const void *acpi_device_get_match_data(const struct device *dev); 717extern bool acpi_driver_match_device(struct device *dev, 718 const struct device_driver *drv); 719int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 720int acpi_device_modalias(struct device *, char *, int); 721 722struct platform_device *acpi_create_platform_device(struct acpi_device *, 723 const struct property_entry *); 724#define ACPI_PTR(_ptr) (_ptr) 725 726static inline void acpi_device_set_enumerated(struct acpi_device *adev) 727{ 728 adev->flags.visited = true; 729} 730 731static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 732{ 733 adev->flags.visited = false; 734} 735 736enum acpi_reconfig_event { 737 ACPI_RECONFIG_DEVICE_ADD = 0, 738 ACPI_RECONFIG_DEVICE_REMOVE, 739}; 740 741int acpi_reconfig_notifier_register(struct notifier_block *nb); 742int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 743 744#ifdef CONFIG_ACPI_GTDT 745int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 746int acpi_gtdt_map_ppi(int type); 747bool acpi_gtdt_c3stop(int type); 748int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 749#endif 750 751#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 752static inline void acpi_arch_set_root_pointer(u64 addr) 753{ 754} 755#endif 756 757#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 758static inline u64 acpi_arch_get_root_pointer(void) 759{ 760 return 0; 761} 762#endif 763 764int acpi_get_local_address(acpi_handle handle, u32 *addr); 765 766#else /* !CONFIG_ACPI */ 767 768#define acpi_disabled 1 769 770#define ACPI_COMPANION(dev) (NULL) 771#define ACPI_COMPANION_SET(dev, adev) do { } while (0) 772#define ACPI_HANDLE(dev) (NULL) 773#define ACPI_HANDLE_FWNODE(fwnode) (NULL) 774#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 775 776#include <acpi/acpi_numa.h> 777 778struct fwnode_handle; 779 780static inline bool acpi_dev_found(const char *hid) 781{ 782 return false; 783} 784 785static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 786{ 787 return false; 788} 789 790struct acpi_device; 791 792static inline bool 793acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 794{ 795 return false; 796} 797 798static inline struct acpi_device * 799acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 800{ 801 return NULL; 802} 803 804static inline bool acpi_reduced_hardware(void) 805{ 806 return false; 807} 808 809static inline void acpi_dev_put(struct acpi_device *adev) {} 810 811static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 812{ 813 return false; 814} 815 816static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 817{ 818 return false; 819} 820 821static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 822{ 823 return NULL; 824} 825 826static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 827{ 828 return false; 829} 830 831static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 832{ 833 return NULL; 834} 835 836static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 837 const char *name) 838{ 839 return false; 840} 841 842static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 843{ 844 return NULL; 845} 846 847static inline bool has_acpi_companion(struct device *dev) 848{ 849 return false; 850} 851 852static inline void acpi_preset_companion(struct device *dev, 853 struct acpi_device *parent, u64 addr) 854{ 855} 856 857static inline const char *acpi_dev_name(struct acpi_device *adev) 858{ 859 return NULL; 860} 861 862static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 863{ 864 return NULL; 865} 866 867static inline void acpi_early_init(void) { } 868static inline void acpi_subsystem_init(void) { } 869 870static inline int early_acpi_boot_init(void) 871{ 872 return 0; 873} 874static inline int acpi_boot_init(void) 875{ 876 return 0; 877} 878 879static inline void acpi_boot_table_prepare(void) 880{ 881} 882 883static inline void acpi_boot_table_init(void) 884{ 885} 886 887static inline int acpi_mps_check(void) 888{ 889 return 0; 890} 891 892static inline int acpi_check_resource_conflict(struct resource *res) 893{ 894 return 0; 895} 896 897static inline int acpi_check_region(resource_size_t start, resource_size_t n, 898 const char *name) 899{ 900 return 0; 901} 902 903struct acpi_table_header; 904static inline int acpi_table_parse(char *id, 905 int (*handler)(struct acpi_table_header *)) 906{ 907 return -ENODEV; 908} 909 910static inline int acpi_nvs_register(__u64 start, __u64 size) 911{ 912 return 0; 913} 914 915static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 916 void *data) 917{ 918 return 0; 919} 920 921struct acpi_device_id; 922 923static inline const struct acpi_device_id *acpi_match_device( 924 const struct acpi_device_id *ids, const struct device *dev) 925{ 926 return NULL; 927} 928 929static inline const void *acpi_device_get_match_data(const struct device *dev) 930{ 931 return NULL; 932} 933 934static inline bool acpi_driver_match_device(struct device *dev, 935 const struct device_driver *drv) 936{ 937 return false; 938} 939 940static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 941 const guid_t *guid, 942 u64 rev, u64 func, 943 union acpi_object *argv4) 944{ 945 return NULL; 946} 947 948static inline int acpi_device_uevent_modalias(struct device *dev, 949 struct kobj_uevent_env *env) 950{ 951 return -ENODEV; 952} 953 954static inline int acpi_device_modalias(struct device *dev, 955 char *buf, int size) 956{ 957 return -ENODEV; 958} 959 960static inline struct platform_device * 961acpi_create_platform_device(struct acpi_device *adev, 962 const struct property_entry *properties) 963{ 964 return NULL; 965} 966 967static inline bool acpi_dma_supported(const struct acpi_device *adev) 968{ 969 return false; 970} 971 972static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 973{ 974 return DEV_DMA_NOT_SUPPORTED; 975} 976 977static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 978 u64 *offset, u64 *size) 979{ 980 return -ENODEV; 981} 982 983static inline int acpi_dma_configure(struct device *dev, 984 enum dev_dma_attr attr) 985{ 986 return 0; 987} 988 989static inline int acpi_dma_configure_id(struct device *dev, 990 enum dev_dma_attr attr, 991 const u32 *input_id) 992{ 993 return 0; 994} 995 996#define ACPI_PTR(_ptr) (NULL) 997 998static inline void acpi_device_set_enumerated(struct acpi_device *adev) 999{ 1000} 1001 1002static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1003{ 1004} 1005 1006static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1007{ 1008 return -EINVAL; 1009} 1010 1011static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1012{ 1013 return -EINVAL; 1014} 1015 1016static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1017{ 1018 return NULL; 1019} 1020 1021static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1022{ 1023 return -ENODEV; 1024} 1025 1026static inline int acpi_register_wakeup_handler(int wake_irq, 1027 bool (*wakeup)(void *context), void *context) 1028{ 1029 return -ENXIO; 1030} 1031 1032static inline void acpi_unregister_wakeup_handler( 1033 bool (*wakeup)(void *context), void *context) { } 1034 1035struct acpi_osc_context; 1036static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1037{ 1038 return 0; 1039} 1040 1041static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1042{ 1043 return 0; 1044} 1045 1046#endif /* !CONFIG_ACPI */ 1047 1048#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1049int acpi_ioapic_add(acpi_handle root); 1050#else 1051static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1052#endif 1053 1054#ifdef CONFIG_ACPI 1055void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1056 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1057 1058acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1059 u32 pm1a_control, u32 pm1b_control); 1060 1061void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1062 u32 val_a, u32 val_b)); 1063 1064acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1065 u32 val_a, u32 val_b); 1066#ifdef CONFIG_X86 1067struct acpi_s2idle_dev_ops { 1068 struct list_head list_node; 1069 void (*prepare)(void); 1070 void (*restore)(void); 1071}; 1072int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1073void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1074#endif /* CONFIG_X86 */ 1075#ifndef CONFIG_IA64 1076void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1077#else 1078static inline void arch_reserve_mem_area(acpi_physical_address addr, 1079 size_t size) 1080{ 1081} 1082#endif /* CONFIG_X86 */ 1083#else 1084#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1085#endif 1086 1087#if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1088int acpi_dev_suspend(struct device *dev, bool wakeup); 1089int acpi_dev_resume(struct device *dev); 1090int acpi_subsys_runtime_suspend(struct device *dev); 1091int acpi_subsys_runtime_resume(struct device *dev); 1092int acpi_dev_pm_attach(struct device *dev, bool power_on); 1093bool acpi_storage_d3(struct device *dev); 1094bool acpi_dev_state_d0(struct device *dev); 1095#else 1096static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1097static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1098static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1099{ 1100 return 0; 1101} 1102static inline bool acpi_storage_d3(struct device *dev) 1103{ 1104 return false; 1105} 1106static inline bool acpi_dev_state_d0(struct device *dev) 1107{ 1108 return true; 1109} 1110#endif 1111 1112#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1113int acpi_subsys_prepare(struct device *dev); 1114void acpi_subsys_complete(struct device *dev); 1115int acpi_subsys_suspend_late(struct device *dev); 1116int acpi_subsys_suspend_noirq(struct device *dev); 1117int acpi_subsys_suspend(struct device *dev); 1118int acpi_subsys_freeze(struct device *dev); 1119int acpi_subsys_poweroff(struct device *dev); 1120void acpi_ec_mark_gpe_for_wake(void); 1121void acpi_ec_set_gpe_wake_mask(u8 action); 1122#else 1123static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1124static inline void acpi_subsys_complete(struct device *dev) {} 1125static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1126static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1127static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1128static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1129static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1130static inline void acpi_ec_mark_gpe_for_wake(void) {} 1131static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1132#endif 1133 1134#ifdef CONFIG_ACPI 1135__printf(3, 4) 1136void acpi_handle_printk(const char *level, acpi_handle handle, 1137 const char *fmt, ...); 1138void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1139 acpi_status status); 1140#else /* !CONFIG_ACPI */ 1141static inline __printf(3, 4) void 1142acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1143static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1144 const char *name, 1145 acpi_status status) {} 1146#endif /* !CONFIG_ACPI */ 1147 1148#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1149__printf(3, 4) 1150void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1151#endif 1152 1153/* 1154 * acpi_handle_<level>: Print message with ACPI prefix and object path 1155 * 1156 * These interfaces acquire the global namespace mutex to obtain an object 1157 * path. In interrupt context, it shows the object path as <n/a>. 1158 */ 1159#define acpi_handle_emerg(handle, fmt, ...) \ 1160 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1161#define acpi_handle_alert(handle, fmt, ...) \ 1162 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1163#define acpi_handle_crit(handle, fmt, ...) \ 1164 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1165#define acpi_handle_err(handle, fmt, ...) \ 1166 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1167#define acpi_handle_warn(handle, fmt, ...) \ 1168 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1169#define acpi_handle_notice(handle, fmt, ...) \ 1170 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1171#define acpi_handle_info(handle, fmt, ...) \ 1172 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1173 1174#if defined(DEBUG) 1175#define acpi_handle_debug(handle, fmt, ...) \ 1176 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1177#else 1178#if defined(CONFIG_DYNAMIC_DEBUG) 1179#define acpi_handle_debug(handle, fmt, ...) \ 1180 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1181 handle, pr_fmt(fmt), ##__VA_ARGS__) 1182#else 1183#define acpi_handle_debug(handle, fmt, ...) \ 1184({ \ 1185 if (0) \ 1186 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1187 0; \ 1188}) 1189#endif 1190#endif 1191 1192#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1193bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1194 struct acpi_resource_gpio **agpio); 1195bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1196 struct acpi_resource_gpio **agpio); 1197int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1198#else 1199static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1200 struct acpi_resource_gpio **agpio) 1201{ 1202 return false; 1203} 1204static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1205 struct acpi_resource_gpio **agpio) 1206{ 1207 return false; 1208} 1209static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1210 const char *name, int index) 1211{ 1212 return -ENXIO; 1213} 1214#endif 1215 1216static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1217{ 1218 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1219} 1220 1221/* Device properties */ 1222 1223#ifdef CONFIG_ACPI 1224int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1225 acpi_object_type type, const union acpi_object **obj); 1226int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1227 const char *name, size_t index, size_t num_args, 1228 struct fwnode_reference_args *args); 1229 1230static inline int acpi_node_get_property_reference( 1231 const struct fwnode_handle *fwnode, 1232 const char *name, size_t index, 1233 struct fwnode_reference_args *args) 1234{ 1235 return __acpi_node_get_property_reference(fwnode, name, index, 1236 NR_FWNODE_REFERENCE_ARGS, args); 1237} 1238 1239static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1240{ 1241 return !list_empty(&adev->data.properties); 1242} 1243 1244struct acpi_device_properties * 1245acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1246 const union acpi_object *properties); 1247 1248int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1249 void **valptr); 1250 1251struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1252 struct fwnode_handle *child); 1253 1254struct acpi_probe_entry; 1255typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1256 struct acpi_probe_entry *); 1257 1258#define ACPI_TABLE_ID_LEN 5 1259 1260/** 1261 * struct acpi_probe_entry - boot-time probing entry 1262 * @id: ACPI table name 1263 * @type: Optional subtable type to match 1264 * (if @id contains subtables) 1265 * @subtable_valid: Optional callback to check the validity of 1266 * the subtable 1267 * @probe_table: Callback to the driver being probed when table 1268 * match is successful 1269 * @probe_subtbl: Callback to the driver being probed when table and 1270 * subtable match (and optional callback is successful) 1271 * @driver_data: Sideband data provided back to the driver 1272 */ 1273struct acpi_probe_entry { 1274 __u8 id[ACPI_TABLE_ID_LEN]; 1275 __u8 type; 1276 acpi_probe_entry_validate_subtbl subtable_valid; 1277 union { 1278 acpi_tbl_table_handler probe_table; 1279 acpi_tbl_entry_handler probe_subtbl; 1280 }; 1281 kernel_ulong_t driver_data; 1282}; 1283 1284#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1285 valid, data, fn) \ 1286 static const struct acpi_probe_entry __acpi_probe_##name \ 1287 __used __section("__" #table "_acpi_probe_table") = { \ 1288 .id = table_id, \ 1289 .type = subtable, \ 1290 .subtable_valid = valid, \ 1291 .probe_table = fn, \ 1292 .driver_data = data, \ 1293 } 1294 1295#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1296 subtable, valid, data, fn) \ 1297 static const struct acpi_probe_entry __acpi_probe_##name \ 1298 __used __section("__" #table "_acpi_probe_table") = { \ 1299 .id = table_id, \ 1300 .type = subtable, \ 1301 .subtable_valid = valid, \ 1302 .probe_subtbl = fn, \ 1303 .driver_data = data, \ 1304 } 1305 1306#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1307#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1308 1309int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1310 1311#define acpi_probe_device_table(t) \ 1312 ({ \ 1313 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1314 ACPI_PROBE_TABLE_END(t); \ 1315 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1316 (&ACPI_PROBE_TABLE_END(t) - \ 1317 &ACPI_PROBE_TABLE(t))); \ 1318 }) 1319#else 1320static inline int acpi_dev_get_property(struct acpi_device *adev, 1321 const char *name, acpi_object_type type, 1322 const union acpi_object **obj) 1323{ 1324 return -ENXIO; 1325} 1326 1327static inline int 1328__acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1329 const char *name, size_t index, size_t num_args, 1330 struct fwnode_reference_args *args) 1331{ 1332 return -ENXIO; 1333} 1334 1335static inline int 1336acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1337 const char *name, size_t index, 1338 struct fwnode_reference_args *args) 1339{ 1340 return -ENXIO; 1341} 1342 1343static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1344 const char *propname, 1345 void **valptr) 1346{ 1347 return -ENXIO; 1348} 1349 1350static inline struct fwnode_handle * 1351acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1352 struct fwnode_handle *child) 1353{ 1354 return NULL; 1355} 1356 1357static inline struct fwnode_handle * 1358acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1359 struct fwnode_handle *prev) 1360{ 1361 return ERR_PTR(-ENXIO); 1362} 1363 1364static inline int 1365acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1366 struct fwnode_handle **remote, 1367 struct fwnode_handle **port, 1368 struct fwnode_handle **endpoint) 1369{ 1370 return -ENXIO; 1371} 1372 1373#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1374 static const void * __acpi_table_##name[] \ 1375 __attribute__((unused)) \ 1376 = { (void *) table_id, \ 1377 (void *) subtable, \ 1378 (void *) valid, \ 1379 (void *) fn, \ 1380 (void *) data } 1381 1382#define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1383#endif 1384 1385#ifdef CONFIG_ACPI_TABLE_UPGRADE 1386void acpi_table_upgrade(void); 1387#else 1388static inline void acpi_table_upgrade(void) { } 1389#endif 1390 1391#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1392extern bool acpi_has_watchdog(void); 1393#else 1394static inline bool acpi_has_watchdog(void) { return false; } 1395#endif 1396 1397#ifdef CONFIG_ACPI_SPCR_TABLE 1398extern bool qdf2400_e44_present; 1399int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1400#else 1401static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1402{ 1403 return 0; 1404} 1405#endif 1406 1407#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1408int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1409#else 1410static inline 1411int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1412{ 1413 return -EINVAL; 1414} 1415#endif 1416 1417#ifdef CONFIG_ACPI_LPIT 1418int lpit_read_residency_count_address(u64 *address); 1419#else 1420static inline int lpit_read_residency_count_address(u64 *address) 1421{ 1422 return -EINVAL; 1423} 1424#endif 1425 1426#ifdef CONFIG_ACPI_PPTT 1427int acpi_pptt_cpu_is_thread(unsigned int cpu); 1428int find_acpi_cpu_topology(unsigned int cpu, int level); 1429int find_acpi_cpu_topology_cluster(unsigned int cpu); 1430int find_acpi_cpu_topology_package(unsigned int cpu); 1431int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1432int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1433#else 1434static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1435{ 1436 return -EINVAL; 1437} 1438static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1439{ 1440 return -EINVAL; 1441} 1442static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1443{ 1444 return -EINVAL; 1445} 1446static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1447{ 1448 return -EINVAL; 1449} 1450static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1451{ 1452 return -EINVAL; 1453} 1454static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1455{ 1456 return -EINVAL; 1457} 1458#endif 1459 1460#ifdef CONFIG_ACPI_PCC 1461void acpi_init_pcc(void); 1462#else 1463static inline void acpi_init_pcc(void) { } 1464#endif 1465 1466#ifdef CONFIG_ACPI 1467extern void acpi_device_notify(struct device *dev); 1468extern void acpi_device_notify_remove(struct device *dev); 1469#else 1470static inline void acpi_device_notify(struct device *dev) { } 1471static inline void acpi_device_notify_remove(struct device *dev) { } 1472#endif 1473 1474#endif /*_LINUX_ACPI_H*/