linux/include/linux/acpi.h
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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_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};
 137
 138typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 139
 140typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
 141                                      const unsigned long end);
 142
 143/* Debugger support */
 144
 145struct acpi_debugger_ops {
 146        int (*create_thread)(acpi_osd_exec_callback function, void *context);
 147        ssize_t (*write_log)(const char *msg);
 148        ssize_t (*read_cmd)(char *buffer, size_t length);
 149        int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
 150        int (*notify_command_complete)(void);
 151};
 152
 153struct acpi_debugger {
 154        const struct acpi_debugger_ops *ops;
 155        struct module *owner;
 156        struct mutex lock;
 157};
 158
 159#ifdef CONFIG_ACPI_DEBUGGER
 160int __init acpi_debugger_init(void);
 161int acpi_register_debugger(struct module *owner,
 162                           const struct acpi_debugger_ops *ops);
 163void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
 164int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
 165ssize_t acpi_debugger_write_log(const char *msg);
 166ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
 167int acpi_debugger_wait_command_ready(void);
 168int acpi_debugger_notify_command_complete(void);
 169#else
 170static inline int acpi_debugger_init(void)
 171{
 172        return -ENODEV;
 173}
 174
 175static inline int acpi_register_debugger(struct module *owner,
 176                                         const struct acpi_debugger_ops *ops)
 177{
 178        return -ENODEV;
 179}
 180
 181static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
 182{
 183}
 184
 185static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
 186                                              void *context)
 187{
 188        return -ENODEV;
 189}
 190
 191static inline int acpi_debugger_write_log(const char *msg)
 192{
 193        return -ENODEV;
 194}
 195
 196static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
 197{
 198        return -ENODEV;
 199}
 200
 201static inline int acpi_debugger_wait_command_ready(void)
 202{
 203        return -ENODEV;
 204}
 205
 206static inline int acpi_debugger_notify_command_complete(void)
 207{
 208        return -ENODEV;
 209}
 210#endif
 211
 212#define BAD_MADT_ENTRY(entry, end) (                                        \
 213                (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 214                ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 215
 216struct acpi_subtable_proc {
 217        int id;
 218        acpi_tbl_entry_handler handler;
 219        int count;
 220};
 221
 222void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
 223void __acpi_unmap_table(void __iomem *map, unsigned long size);
 224int early_acpi_boot_init(void);
 225int acpi_boot_init (void);
 226void acpi_boot_table_prepare (void);
 227void acpi_boot_table_init (void);
 228int acpi_mps_check (void);
 229int acpi_numa_init (void);
 230
 231int acpi_locate_initial_tables (void);
 232void acpi_reserve_initial_tables (void);
 233void acpi_table_init_complete (void);
 234int acpi_table_init (void);
 235int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 236int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 237                              int entry_id,
 238                              acpi_tbl_entry_handler handler,
 239                              unsigned int max_entries);
 240int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
 241                              struct acpi_subtable_proc *proc, int proc_num,
 242                              unsigned int max_entries);
 243int acpi_table_parse_madt(enum acpi_madt_type id,
 244                          acpi_tbl_entry_handler handler,
 245                          unsigned int max_entries);
 246int acpi_parse_mcfg (struct acpi_table_header *header);
 247void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 248
 249/* the following numa functions are architecture-dependent */
 250void acpi_numa_slit_init (struct acpi_table_slit *slit);
 251
 252#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
 253void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 254#else
 255static inline void
 256acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
 257#endif
 258
 259void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 260
 261#ifdef CONFIG_ARM64
 262void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
 263void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size);
 264#else
 265static inline void
 266acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
 267static inline void
 268acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { }
 269#endif
 270
 271int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 272
 273#ifndef PHYS_CPUID_INVALID
 274typedef u32 phys_cpuid_t;
 275#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 276#endif
 277
 278static inline bool invalid_logical_cpuid(u32 cpuid)
 279{
 280        return (int)cpuid < 0;
 281}
 282
 283static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 284{
 285        return phys_id == PHYS_CPUID_INVALID;
 286}
 287
 288/* Validate the processor object's proc_id */
 289bool acpi_duplicate_processor_id(int proc_id);
 290/* Processor _CTS control */
 291struct acpi_processor_power;
 292
 293#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
 294bool acpi_processor_claim_cst_control(void);
 295int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
 296                                struct acpi_processor_power *info);
 297#else
 298static inline bool acpi_processor_claim_cst_control(void) { return false; }
 299static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
 300                                              struct acpi_processor_power *info)
 301{
 302        return -ENODEV;
 303}
 304#endif
 305
 306#ifdef CONFIG_ACPI_HOTPLUG_CPU
 307/* Arch dependent functions for cpu hotplug support */
 308int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
 309                 int *pcpu);
 310int acpi_unmap_cpu(int cpu);
 311#endif /* CONFIG_ACPI_HOTPLUG_CPU */
 312
 313#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 314int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 315#endif
 316
 317int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 318int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 319int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 320void acpi_irq_stats_init(void);
 321extern u32 acpi_irq_handled;
 322extern u32 acpi_irq_not_handled;
 323extern unsigned int acpi_sci_irq;
 324extern bool acpi_no_s5;
 325#define INVALID_ACPI_IRQ        ((unsigned)-1)
 326static inline bool acpi_sci_irq_valid(void)
 327{
 328        return acpi_sci_irq != INVALID_ACPI_IRQ;
 329}
 330
 331extern int sbf_port;
 332extern unsigned long acpi_realmode_flags;
 333
 334int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 335int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 336int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 337
 338void acpi_set_irq_model(enum acpi_irq_model_id model,
 339                        struct fwnode_handle *fwnode);
 340
 341struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
 342                                             unsigned int size,
 343                                             struct fwnode_handle *fwnode,
 344                                             const struct irq_domain_ops *ops,
 345                                             void *host_data);
 346
 347#ifdef CONFIG_X86_IO_APIC
 348extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 349#else
 350static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
 351{
 352        return -1;
 353}
 354#endif
 355/*
 356 * This function undoes the effect of one call to acpi_register_gsi().
 357 * If this matches the last registration, any IRQ resources for gsi
 358 * are freed.
 359 */
 360void acpi_unregister_gsi (u32 gsi);
 361
 362struct pci_dev;
 363
 364int acpi_pci_irq_enable (struct pci_dev *dev);
 365void acpi_penalize_isa_irq(int irq, int active);
 366bool acpi_isa_irq_available(int irq);
 367#ifdef CONFIG_PCI
 368void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 369#else
 370static inline void acpi_penalize_sci_irq(int irq, int trigger,
 371                                        int polarity)
 372{
 373}
 374#endif
 375void acpi_pci_irq_disable (struct pci_dev *dev);
 376
 377extern int ec_read(u8 addr, u8 *val);
 378extern int ec_write(u8 addr, u8 val);
 379extern int ec_transaction(u8 command,
 380                          const u8 *wdata, unsigned wdata_len,
 381                          u8 *rdata, unsigned rdata_len);
 382extern acpi_handle ec_get_handle(void);
 383
 384extern bool acpi_is_pnp_device(struct acpi_device *);
 385
 386#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 387
 388typedef void (*wmi_notify_handler) (u32 value, void *context);
 389
 390extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 391                                        u32 method_id,
 392                                        const struct acpi_buffer *in,
 393                                        struct acpi_buffer *out);
 394extern acpi_status wmi_query_block(const char *guid, u8 instance,
 395                                        struct acpi_buffer *out);
 396extern acpi_status wmi_set_block(const char *guid, u8 instance,
 397                                        const struct acpi_buffer *in);
 398extern acpi_status wmi_install_notify_handler(const char *guid,
 399                                        wmi_notify_handler handler, void *data);
 400extern acpi_status wmi_remove_notify_handler(const char *guid);
 401extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 402extern bool wmi_has_guid(const char *guid);
 403extern char *wmi_get_acpi_device_uid(const char *guid);
 404
 405#endif  /* CONFIG_ACPI_WMI */
 406
 407#define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 408#define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 409#define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 410#define ACPI_VIDEO_BACKLIGHT                            0x0008
 411#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 412#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 413#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 414#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 415#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 416#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 417#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 418#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 419
 420extern char acpi_video_backlight_string[];
 421extern long acpi_is_video_device(acpi_handle handle);
 422extern int acpi_blacklisted(void);
 423extern void acpi_osi_setup(char *str);
 424extern bool acpi_osi_is_win8(void);
 425
 426#ifdef CONFIG_ACPI_NUMA
 427int acpi_map_pxm_to_node(int pxm);
 428int acpi_get_node(acpi_handle handle);
 429
 430/**
 431 * pxm_to_online_node - Map proximity ID to online node
 432 * @pxm: ACPI proximity ID
 433 *
 434 * This is similar to pxm_to_node(), but always returns an online
 435 * node.  When the mapped node from a given proximity ID is offline, it
 436 * looks up the node distance table and returns the nearest online node.
 437 *
 438 * ACPI device drivers, which are called after the NUMA initialization has
 439 * completed in the kernel, can call this interface to obtain their device
 440 * NUMA topology from ACPI tables.  Such drivers do not have to deal with
 441 * offline nodes.  A node may be offline when SRAT memory entry does not exist,
 442 * or NUMA is disabled, ex. "numa=off" on x86.
 443 */
 444static inline int pxm_to_online_node(int pxm)
 445{
 446        int node = pxm_to_node(pxm);
 447
 448        return numa_map_to_online_node(node);
 449}
 450#else
 451static inline int pxm_to_online_node(int pxm)
 452{
 453        return 0;
 454}
 455static inline int acpi_map_pxm_to_node(int pxm)
 456{
 457        return 0;
 458}
 459static inline int acpi_get_node(acpi_handle handle)
 460{
 461        return 0;
 462}
 463#endif
 464extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 465
 466extern int pnpacpi_disabled;
 467
 468#define PXM_INVAL       (-1)
 469
 470bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 471bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 472bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 473                                     struct resource_win *win);
 474bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 475                                         struct resource_win *win);
 476unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 477unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
 478bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 479                                 struct resource *res);
 480
 481void acpi_dev_free_resource_list(struct list_head *list);
 482int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 483                           int (*preproc)(struct acpi_resource *, void *),
 484                           void *preproc_data);
 485int acpi_dev_get_dma_resources(struct acpi_device *adev,
 486                               struct list_head *list);
 487int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 488                                  unsigned long types);
 489
 490static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 491                                                   void *arg)
 492{
 493        return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 494}
 495
 496struct acpi_device *acpi_resource_consumer(struct resource *res);
 497
 498int acpi_check_resource_conflict(const struct resource *res);
 499
 500int acpi_check_region(resource_size_t start, resource_size_t n,
 501                      const char *name);
 502
 503acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
 504                                u32 level);
 505
 506int acpi_resources_are_enforced(void);
 507
 508#ifdef CONFIG_HIBERNATION
 509void __init acpi_no_s4_hw_signature(void);
 510#endif
 511
 512#ifdef CONFIG_PM_SLEEP
 513void __init acpi_old_suspend_ordering(void);
 514void __init acpi_nvs_nosave(void);
 515void __init acpi_nvs_nosave_s3(void);
 516void __init acpi_sleep_no_blacklist(void);
 517#endif /* CONFIG_PM_SLEEP */
 518
 519int acpi_register_wakeup_handler(
 520        int wake_irq, bool (*wakeup)(void *context), void *context);
 521void acpi_unregister_wakeup_handler(
 522        bool (*wakeup)(void *context), void *context);
 523
 524struct acpi_osc_context {
 525        char *uuid_str;                 /* UUID string */
 526        int rev;
 527        struct acpi_buffer cap;         /* list of DWORD capabilities */
 528        struct acpi_buffer ret;         /* free by caller if success */
 529};
 530
 531acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 532
 533/* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 534#define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 535#define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 536#define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 537
 538/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 539#define OSC_QUERY_ENABLE                        0x00000001  /* input */
 540#define OSC_REQUEST_ERROR                       0x00000002  /* return */
 541#define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 542#define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 543#define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 544
 545/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 546#define OSC_SB_PAD_SUPPORT                      0x00000001
 547#define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 548#define OSC_SB_PR3_SUPPORT                      0x00000004
 549#define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 550#define OSC_SB_APEI_SUPPORT                     0x00000010
 551#define OSC_SB_CPC_SUPPORT                      0x00000020
 552#define OSC_SB_CPCV2_SUPPORT                    0x00000040
 553#define OSC_SB_PCLPI_SUPPORT                    0x00000080
 554#define OSC_SB_OSLPI_SUPPORT                    0x00000100
 555#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT         0x00001000
 556#define OSC_SB_GENERIC_INITIATOR_SUPPORT        0x00002000
 557#define OSC_SB_NATIVE_USB4_SUPPORT              0x00040000
 558#define OSC_SB_PRM_SUPPORT                      0x00200000
 559
 560extern bool osc_sb_apei_support_acked;
 561extern bool osc_pc_lpi_support_confirmed;
 562extern bool osc_sb_native_usb4_support_confirmed;
 563
 564/* USB4 Capabilities */
 565#define OSC_USB_USB3_TUNNELING                  0x00000001
 566#define OSC_USB_DP_TUNNELING                    0x00000002
 567#define OSC_USB_PCIE_TUNNELING                  0x00000004
 568#define OSC_USB_XDOMAIN                         0x00000008
 569
 570extern u32 osc_sb_native_usb4_control;
 571
 572/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 573#define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 574#define OSC_PCI_ASPM_SUPPORT                    0x00000002
 575#define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 576#define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 577#define OSC_PCI_MSI_SUPPORT                     0x00000010
 578#define OSC_PCI_EDR_SUPPORT                     0x00000080
 579#define OSC_PCI_HPX_TYPE_3_SUPPORT              0x00000100
 580#define OSC_PCI_SUPPORT_MASKS                   0x0000019f
 581
 582/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 583#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 584#define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 585#define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 586#define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 587#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 588#define OSC_PCI_EXPRESS_LTR_CONTROL             0x00000020
 589#define OSC_PCI_EXPRESS_DPC_CONTROL             0x00000080
 590#define OSC_PCI_CONTROL_MASKS                   0x000000bf
 591
 592#define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 593#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 594#define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 595#define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 596#define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 597#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 598#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 599#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 600#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 601#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 602
 603/* Enable _OST when all relevant hotplug operations are enabled */
 604#if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 605        defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 606        defined(CONFIG_ACPI_CONTAINER)
 607#define ACPI_HOTPLUG_OST
 608#endif
 609
 610/* _OST Source Event Code (OSPM Action) */
 611#define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 612#define ACPI_OST_EC_OSPM_EJECT                  0x103
 613#define ACPI_OST_EC_OSPM_INSERTION              0x200
 614
 615/* _OST General Processing Status Code */
 616#define ACPI_OST_SC_SUCCESS                     0x0
 617#define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 618#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 619
 620/* _OST OS Shutdown Processing (0x100) Status Code */
 621#define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 622#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 623#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 624#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 625
 626/* _OST Ejection Request (0x3, 0x103) Status Code */
 627#define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 628#define ACPI_OST_SC_DEVICE_IN_USE               0x81
 629#define ACPI_OST_SC_DEVICE_BUSY                 0x82
 630#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 631#define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 632
 633/* _OST Insertion Request (0x200) Status Code */
 634#define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 635#define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 636#define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 637
 638enum acpi_predicate {
 639        all_versions,
 640        less_than_or_equal,
 641        equal,
 642        greater_than_or_equal,
 643};
 644
 645/* Table must be terminted by a NULL entry */
 646struct acpi_platform_list {
 647        char    oem_id[ACPI_OEM_ID_SIZE+1];
 648        char    oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
 649        u32     oem_revision;
 650        char    *table;
 651        enum acpi_predicate pred;
 652        char    *reason;
 653        u32     data;
 654};
 655int acpi_match_platform_list(const struct acpi_platform_list *plat);
 656
 657extern void acpi_early_init(void);
 658extern void acpi_subsystem_init(void);
 659extern void arch_post_acpi_subsys_init(void);
 660
 661extern int acpi_nvs_register(__u64 start, __u64 size);
 662
 663extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 664                                    void *data);
 665
 666const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 667                                               const struct device *dev);
 668
 669const void *acpi_device_get_match_data(const struct device *dev);
 670extern bool acpi_driver_match_device(struct device *dev,
 671                                     const struct device_driver *drv);
 672int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 673int acpi_device_modalias(struct device *, char *, int);
 674
 675struct platform_device *acpi_create_platform_device(struct acpi_device *,
 676                                                    struct property_entry *);
 677#define ACPI_PTR(_ptr)  (_ptr)
 678
 679static inline void acpi_device_set_enumerated(struct acpi_device *adev)
 680{
 681        adev->flags.visited = true;
 682}
 683
 684static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
 685{
 686        adev->flags.visited = false;
 687}
 688
 689enum acpi_reconfig_event  {
 690        ACPI_RECONFIG_DEVICE_ADD = 0,
 691        ACPI_RECONFIG_DEVICE_REMOVE,
 692};
 693
 694int acpi_reconfig_notifier_register(struct notifier_block *nb);
 695int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
 696
 697#ifdef CONFIG_ACPI_GTDT
 698int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
 699int acpi_gtdt_map_ppi(int type);
 700bool acpi_gtdt_c3stop(int type);
 701int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
 702#endif
 703
 704#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
 705static inline void acpi_arch_set_root_pointer(u64 addr)
 706{
 707}
 708#endif
 709
 710#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
 711static inline u64 acpi_arch_get_root_pointer(void)
 712{
 713        return 0;
 714}
 715#endif
 716
 717int acpi_get_local_address(acpi_handle handle, u32 *addr);
 718
 719#else   /* !CONFIG_ACPI */
 720
 721#define acpi_disabled 1
 722
 723#define ACPI_COMPANION(dev)             (NULL)
 724#define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 725#define ACPI_HANDLE(dev)                (NULL)
 726#define ACPI_HANDLE_FWNODE(fwnode)      (NULL)
 727#define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
 728
 729#include <acpi/acpi_numa.h>
 730
 731struct fwnode_handle;
 732
 733static inline bool acpi_dev_found(const char *hid)
 734{
 735        return false;
 736}
 737
 738static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
 739{
 740        return false;
 741}
 742
 743struct acpi_device;
 744
 745static inline bool
 746acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
 747{
 748        return false;
 749}
 750
 751static inline struct acpi_device *
 752acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
 753{
 754        return NULL;
 755}
 756
 757static inline bool acpi_reduced_hardware(void)
 758{
 759        return false;
 760}
 761
 762static inline void acpi_dev_put(struct acpi_device *adev) {}
 763
 764static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
 765{
 766        return false;
 767}
 768
 769static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
 770{
 771        return false;
 772}
 773
 774static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
 775{
 776        return NULL;
 777}
 778
 779static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
 780{
 781        return false;
 782}
 783
 784static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
 785{
 786        return NULL;
 787}
 788
 789static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
 790                                        const char *name)
 791{
 792        return false;
 793}
 794
 795static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 796{
 797        return NULL;
 798}
 799
 800static inline bool has_acpi_companion(struct device *dev)
 801{
 802        return false;
 803}
 804
 805static inline void acpi_preset_companion(struct device *dev,
 806                                         struct acpi_device *parent, u64 addr)
 807{
 808}
 809
 810static inline const char *acpi_dev_name(struct acpi_device *adev)
 811{
 812        return NULL;
 813}
 814
 815static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
 816{
 817        return NULL;
 818}
 819
 820static inline void acpi_early_init(void) { }
 821static inline void acpi_subsystem_init(void) { }
 822
 823static inline int early_acpi_boot_init(void)
 824{
 825        return 0;
 826}
 827static inline int acpi_boot_init(void)
 828{
 829        return 0;
 830}
 831
 832static inline void acpi_boot_table_prepare(void)
 833{
 834}
 835
 836static inline void acpi_boot_table_init(void)
 837{
 838}
 839
 840static inline int acpi_mps_check(void)
 841{
 842        return 0;
 843}
 844
 845static inline int acpi_check_resource_conflict(struct resource *res)
 846{
 847        return 0;
 848}
 849
 850static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 851                                    const char *name)
 852{
 853        return 0;
 854}
 855
 856struct acpi_table_header;
 857static inline int acpi_table_parse(char *id,
 858                                int (*handler)(struct acpi_table_header *))
 859{
 860        return -ENODEV;
 861}
 862
 863static inline int acpi_nvs_register(__u64 start, __u64 size)
 864{
 865        return 0;
 866}
 867
 868static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 869                                           void *data)
 870{
 871        return 0;
 872}
 873
 874struct acpi_device_id;
 875
 876static inline const struct acpi_device_id *acpi_match_device(
 877        const struct acpi_device_id *ids, const struct device *dev)
 878{
 879        return NULL;
 880}
 881
 882static inline const void *acpi_device_get_match_data(const struct device *dev)
 883{
 884        return NULL;
 885}
 886
 887static inline bool acpi_driver_match_device(struct device *dev,
 888                                            const struct device_driver *drv)
 889{
 890        return false;
 891}
 892
 893static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
 894                                                   const guid_t *guid,
 895                                                   u64 rev, u64 func,
 896                                                   union acpi_object *argv4)
 897{
 898        return NULL;
 899}
 900
 901static inline int acpi_device_uevent_modalias(struct device *dev,
 902                                struct kobj_uevent_env *env)
 903{
 904        return -ENODEV;
 905}
 906
 907static inline int acpi_device_modalias(struct device *dev,
 908                                char *buf, int size)
 909{
 910        return -ENODEV;
 911}
 912
 913static inline struct platform_device *
 914acpi_create_platform_device(struct acpi_device *adev,
 915                            struct property_entry *properties)
 916{
 917        return NULL;
 918}
 919
 920static inline bool acpi_dma_supported(const struct acpi_device *adev)
 921{
 922        return false;
 923}
 924
 925static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
 926{
 927        return DEV_DMA_NOT_SUPPORTED;
 928}
 929
 930static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
 931                                     u64 *offset, u64 *size)
 932{
 933        return -ENODEV;
 934}
 935
 936static inline int acpi_dma_configure(struct device *dev,
 937                                     enum dev_dma_attr attr)
 938{
 939        return 0;
 940}
 941
 942static inline int acpi_dma_configure_id(struct device *dev,
 943                                        enum dev_dma_attr attr,
 944                                        const u32 *input_id)
 945{
 946        return 0;
 947}
 948
 949#define ACPI_PTR(_ptr)  (NULL)
 950
 951static inline void acpi_device_set_enumerated(struct acpi_device *adev)
 952{
 953}
 954
 955static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
 956{
 957}
 958
 959static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
 960{
 961        return -EINVAL;
 962}
 963
 964static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
 965{
 966        return -EINVAL;
 967}
 968
 969static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
 970{
 971        return NULL;
 972}
 973
 974static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
 975{
 976        return -ENODEV;
 977}
 978
 979#endif  /* !CONFIG_ACPI */
 980
 981#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 982int acpi_ioapic_add(acpi_handle root);
 983#else
 984static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
 985#endif
 986
 987#ifdef CONFIG_ACPI
 988void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 989                               u32 pm1a_ctrl,  u32 pm1b_ctrl));
 990
 991acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 992                                  u32 pm1a_control, u32 pm1b_control);
 993
 994void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 995                                        u32 val_a,  u32 val_b));
 996
 997acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 998                                           u32 val_a, u32 val_b);
 999
1000#ifndef CONFIG_IA64
1001void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1002#else
1003static inline void arch_reserve_mem_area(acpi_physical_address addr,
1004                                          size_t size)
1005{
1006}
1007#endif /* CONFIG_X86 */
1008#else
1009#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1010#endif
1011
1012#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1013int acpi_dev_suspend(struct device *dev, bool wakeup);
1014int acpi_dev_resume(struct device *dev);
1015int acpi_subsys_runtime_suspend(struct device *dev);
1016int acpi_subsys_runtime_resume(struct device *dev);
1017int acpi_dev_pm_attach(struct device *dev, bool power_on);
1018bool acpi_storage_d3(struct device *dev);
1019#else
1020static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
1021static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
1022static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1023{
1024        return 0;
1025}
1026static inline bool acpi_storage_d3(struct device *dev)
1027{
1028        return false;
1029}
1030#endif
1031
1032#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1033int acpi_subsys_prepare(struct device *dev);
1034void acpi_subsys_complete(struct device *dev);
1035int acpi_subsys_suspend_late(struct device *dev);
1036int acpi_subsys_suspend_noirq(struct device *dev);
1037int acpi_subsys_suspend(struct device *dev);
1038int acpi_subsys_freeze(struct device *dev);
1039int acpi_subsys_poweroff(struct device *dev);
1040void acpi_ec_mark_gpe_for_wake(void);
1041void acpi_ec_set_gpe_wake_mask(u8 action);
1042#else
1043static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1044static inline void acpi_subsys_complete(struct device *dev) {}
1045static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1046static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1047static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1048static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1049static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1050static inline void acpi_ec_mark_gpe_for_wake(void) {}
1051static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1052#endif
1053
1054#ifdef CONFIG_ACPI
1055__printf(3, 4)
1056void acpi_handle_printk(const char *level, acpi_handle handle,
1057                        const char *fmt, ...);
1058void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1059                                  acpi_status status);
1060#else   /* !CONFIG_ACPI */
1061static inline __printf(3, 4) void
1062acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1063static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1064                                                const char *name,
1065                                                acpi_status status) {}
1066#endif  /* !CONFIG_ACPI */
1067
1068#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1069__printf(3, 4)
1070void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1071#endif
1072
1073/*
1074 * acpi_handle_<level>: Print message with ACPI prefix and object path
1075 *
1076 * These interfaces acquire the global namespace mutex to obtain an object
1077 * path.  In interrupt context, it shows the object path as <n/a>.
1078 */
1079#define acpi_handle_emerg(handle, fmt, ...)                             \
1080        acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1081#define acpi_handle_alert(handle, fmt, ...)                             \
1082        acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1083#define acpi_handle_crit(handle, fmt, ...)                              \
1084        acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1085#define acpi_handle_err(handle, fmt, ...)                               \
1086        acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1087#define acpi_handle_warn(handle, fmt, ...)                              \
1088        acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1089#define acpi_handle_notice(handle, fmt, ...)                            \
1090        acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1091#define acpi_handle_info(handle, fmt, ...)                              \
1092        acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1093
1094#if defined(DEBUG)
1095#define acpi_handle_debug(handle, fmt, ...)                             \
1096        acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1097#else
1098#if defined(CONFIG_DYNAMIC_DEBUG)
1099#define acpi_handle_debug(handle, fmt, ...)                             \
1100        _dynamic_func_call(fmt, __acpi_handle_debug,                    \
1101                           handle, pr_fmt(fmt), ##__VA_ARGS__)
1102#else
1103#define acpi_handle_debug(handle, fmt, ...)                             \
1104({                                                                      \
1105        if (0)                                                          \
1106                acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1107        0;                                                              \
1108})
1109#endif
1110#endif
1111
1112#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1113bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1114                                struct acpi_resource_gpio **agpio);
1115bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1116                               struct acpi_resource_gpio **agpio);
1117int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
1118#else
1119static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1120                                              struct acpi_resource_gpio **agpio)
1121{
1122        return false;
1123}
1124static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1125                                             struct acpi_resource_gpio **agpio)
1126{
1127        return false;
1128}
1129static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
1130                                           const char *name, int index)
1131{
1132        return -ENXIO;
1133}
1134#endif
1135
1136static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1137{
1138        return acpi_dev_gpio_irq_get_by(adev, NULL, index);
1139}
1140
1141/* Device properties */
1142
1143#ifdef CONFIG_ACPI
1144int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1145                          acpi_object_type type, const union acpi_object **obj);
1146int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1147                                const char *name, size_t index, size_t num_args,
1148                                struct fwnode_reference_args *args);
1149
1150static inline int acpi_node_get_property_reference(
1151                                const struct fwnode_handle *fwnode,
1152                                const char *name, size_t index,
1153                                struct fwnode_reference_args *args)
1154{
1155        return __acpi_node_get_property_reference(fwnode, name, index,
1156                NR_FWNODE_REFERENCE_ARGS, args);
1157}
1158
1159static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1160{
1161        return !list_empty(&adev->data.properties);
1162}
1163
1164struct acpi_device_properties *
1165acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1166                    const union acpi_object *properties);
1167
1168int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1169                       void **valptr);
1170
1171struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1172                                            struct fwnode_handle *child);
1173struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1174
1175struct acpi_probe_entry;
1176typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1177                                                 struct acpi_probe_entry *);
1178
1179#define ACPI_TABLE_ID_LEN       5
1180
1181/**
1182 * struct acpi_probe_entry - boot-time probing entry
1183 * @id:                 ACPI table name
1184 * @type:               Optional subtable type to match
1185 *                      (if @id contains subtables)
1186 * @subtable_valid:     Optional callback to check the validity of
1187 *                      the subtable
1188 * @probe_table:        Callback to the driver being probed when table
1189 *                      match is successful
1190 * @probe_subtbl:       Callback to the driver being probed when table and
1191 *                      subtable match (and optional callback is successful)
1192 * @driver_data:        Sideband data provided back to the driver
1193 */
1194struct acpi_probe_entry {
1195        __u8 id[ACPI_TABLE_ID_LEN];
1196        __u8 type;
1197        acpi_probe_entry_validate_subtbl subtable_valid;
1198        union {
1199                acpi_tbl_table_handler probe_table;
1200                acpi_tbl_entry_handler probe_subtbl;
1201        };
1202        kernel_ulong_t driver_data;
1203};
1204
1205#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable,       \
1206                                 valid, data, fn)                       \
1207        static const struct acpi_probe_entry __acpi_probe_##name        \
1208                __used __section("__" #table "_acpi_probe_table") = {   \
1209                        .id = table_id,                                 \
1210                        .type = subtable,                               \
1211                        .subtable_valid = valid,                        \
1212                        .probe_table = fn,                              \
1213                        .driver_data = data,                            \
1214                }
1215
1216#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id,        \
1217                                          subtable, valid, data, fn)    \
1218        static const struct acpi_probe_entry __acpi_probe_##name        \
1219                __used __section("__" #table "_acpi_probe_table") = {   \
1220                        .id = table_id,                                 \
1221                        .type = subtable,                               \
1222                        .subtable_valid = valid,                        \
1223                        .probe_subtbl = fn,                             \
1224                        .driver_data = data,                            \
1225                }
1226
1227#define ACPI_PROBE_TABLE(name)          __##name##_acpi_probe_table
1228#define ACPI_PROBE_TABLE_END(name)      __##name##_acpi_probe_table_end
1229
1230int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1231
1232#define acpi_probe_device_table(t)                                      \
1233        ({                                                              \
1234                extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),     \
1235                                               ACPI_PROBE_TABLE_END(t); \
1236                __acpi_probe_device_table(&ACPI_PROBE_TABLE(t),         \
1237                                          (&ACPI_PROBE_TABLE_END(t) -   \
1238                                           &ACPI_PROBE_TABLE(t)));      \
1239        })
1240#else
1241static inline int acpi_dev_get_property(struct acpi_device *adev,
1242                                        const char *name, acpi_object_type type,
1243                                        const union acpi_object **obj)
1244{
1245        return -ENXIO;
1246}
1247
1248static inline int
1249__acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1250                                const char *name, size_t index, size_t num_args,
1251                                struct fwnode_reference_args *args)
1252{
1253        return -ENXIO;
1254}
1255
1256static inline int
1257acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1258                                 const char *name, size_t index,
1259                                 struct fwnode_reference_args *args)
1260{
1261        return -ENXIO;
1262}
1263
1264static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1265                                     const char *propname,
1266                                     void **valptr)
1267{
1268        return -ENXIO;
1269}
1270
1271static inline struct fwnode_handle *
1272acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1273                      struct fwnode_handle *child)
1274{
1275        return NULL;
1276}
1277
1278static inline struct fwnode_handle *
1279acpi_node_get_parent(const struct fwnode_handle *fwnode)
1280{
1281        return NULL;
1282}
1283
1284static inline struct fwnode_handle *
1285acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1286                             struct fwnode_handle *prev)
1287{
1288        return ERR_PTR(-ENXIO);
1289}
1290
1291static inline int
1292acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1293                               struct fwnode_handle **remote,
1294                               struct fwnode_handle **port,
1295                               struct fwnode_handle **endpoint)
1296{
1297        return -ENXIO;
1298}
1299
1300#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1301        static const void * __acpi_table_##name[]                       \
1302                __attribute__((unused))                                 \
1303                 = { (void *) table_id,                                 \
1304                     (void *) subtable,                                 \
1305                     (void *) valid,                                    \
1306                     (void *) fn,                                       \
1307                     (void *) data }
1308
1309#define acpi_probe_device_table(t)      ({ int __r = 0; __r;})
1310#endif
1311
1312#ifdef CONFIG_ACPI_TABLE_UPGRADE
1313void acpi_table_upgrade(void);
1314#else
1315static inline void acpi_table_upgrade(void) { }
1316#endif
1317
1318#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1319extern bool acpi_has_watchdog(void);
1320#else
1321static inline bool acpi_has_watchdog(void) { return false; }
1322#endif
1323
1324#ifdef CONFIG_ACPI_SPCR_TABLE
1325extern bool qdf2400_e44_present;
1326int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1327#else
1328static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1329{
1330        return 0;
1331}
1332#endif
1333
1334#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1335int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1336#else
1337static inline
1338int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1339{
1340        return -EINVAL;
1341}
1342#endif
1343
1344#ifdef CONFIG_ACPI_LPIT
1345int lpit_read_residency_count_address(u64 *address);
1346#else
1347static inline int lpit_read_residency_count_address(u64 *address)
1348{
1349        return -EINVAL;
1350}
1351#endif
1352
1353#ifdef CONFIG_ACPI_PPTT
1354int acpi_pptt_cpu_is_thread(unsigned int cpu);
1355int find_acpi_cpu_topology(unsigned int cpu, int level);
1356int find_acpi_cpu_topology_package(unsigned int cpu);
1357int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1358int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1359#else
1360static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1361{
1362        return -EINVAL;
1363}
1364static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1365{
1366        return -EINVAL;
1367}
1368static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1369{
1370        return -EINVAL;
1371}
1372static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1373{
1374        return -EINVAL;
1375}
1376static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1377{
1378        return -EINVAL;
1379}
1380#endif
1381
1382#ifdef CONFIG_ACPI
1383extern void acpi_device_notify(struct device *dev);
1384extern void acpi_device_notify_remove(struct device *dev);
1385#else
1386static inline void acpi_device_notify(struct device *dev) { }
1387static inline void acpi_device_notify_remove(struct device *dev) { }
1388#endif
1389
1390#endif  /*_LINUX_ACPI_H*/
1391