acpi.h

   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/cleanup.h>
  12#include <linux/errno.h>
  13#include <linux/ioport.h>	/* for struct resource */
  14#include <linux/resource_ext.h>
  15#include <linux/device.h>
  16#include <linux/mod_devicetable.h>
  17#include <linux/property.h>
  18#include <linux/uuid.h>
  19#include <linux/node.h>
  20
  21struct irq_domain;
  22struct irq_domain_ops;
  23
  24#ifndef _LINUX
  25#define _LINUX
  26#endif
  27#include <acpi/acpi.h>
  28#include <acpi/acpi_numa.h>
  29
  30#ifdef	CONFIG_ACPI
  31
  32#include <linux/list.h>
  33#include <linux/dynamic_debug.h>
  34#include <linux/module.h>
  35#include <linux/mutex.h>
  36#include <linux/fw_table.h>
  37
  38#include <acpi/acpi_bus.h>
  39#include <acpi/acpi_drivers.h>
  40#include <acpi/acpi_io.h>
  41#include <asm/acpi.h>
  42
  43#ifdef CONFIG_ACPI_TABLE_LIB
  44#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, "ACPI")
  45#define __init_or_acpilib
  46#define __initdata_or_acpilib
  47#else
  48#define EXPORT_SYMBOL_ACPI_LIB(x)
  49#define __init_or_acpilib __init
  50#define __initdata_or_acpilib __initdata
  51#endif
  52
  53static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
  54{
  55	return adev ? adev->handle : NULL;
  56}
  57
  58#define ACPI_COMPANION(dev)		to_acpi_device_node((dev)->fwnode)
  59#define ACPI_COMPANION_SET(dev, adev)	set_primary_fwnode(dev, (adev) ? \
  60	acpi_fwnode_handle(adev) : NULL)
  61#define ACPI_HANDLE(dev)		acpi_device_handle(ACPI_COMPANION(dev))
  62#define ACPI_HANDLE_FWNODE(fwnode)	\
  63				acpi_device_handle(to_acpi_device_node(fwnode))
  64
  65static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
  66{
  67	struct fwnode_handle *fwnode;
  68
  69	fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
  70	if (!fwnode)
  71		return NULL;
  72
  73	fwnode_init(fwnode, &acpi_static_fwnode_ops);
  74
  75	return fwnode;
  76}
  77
  78static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
  79{
  80	if (WARN_ON(!is_acpi_static_node(fwnode)))
  81		return;
  82
  83	kfree(fwnode);
  84}
  85
  86static inline bool has_acpi_companion(struct device *dev)
  87{
  88	return is_acpi_device_node(dev->fwnode);
  89}
  90
  91static inline void acpi_preset_companion(struct device *dev,
  92					 struct acpi_device *parent, u64 addr)
  93{
  94	ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
  95}
  96
  97static inline const char *acpi_dev_name(struct acpi_device *adev)
  98{
  99	return dev_name(&adev->dev);
 100}
 101
 102struct device *acpi_get_first_physical_node(struct acpi_device *adev);
 103
 104enum acpi_irq_model_id {
 105	ACPI_IRQ_MODEL_PIC = 0,
 106	ACPI_IRQ_MODEL_IOAPIC,
 107	ACPI_IRQ_MODEL_IOSAPIC,
 108	ACPI_IRQ_MODEL_PLATFORM,
 109	ACPI_IRQ_MODEL_GIC,
 110	ACPI_IRQ_MODEL_LPIC,
 111	ACPI_IRQ_MODEL_RINTC,
 112	ACPI_IRQ_MODEL_COUNT
 113};
 114
 115extern enum acpi_irq_model_id	acpi_irq_model;
 116
 117enum acpi_interrupt_id {
 118	ACPI_INTERRUPT_PMI	= 1,
 119	ACPI_INTERRUPT_INIT,
 120	ACPI_INTERRUPT_CPEI,
 121	ACPI_INTERRUPT_COUNT
 122};
 123
 124#define	ACPI_SPACE_MEM		0
 125
 126enum acpi_address_range_id {
 127	ACPI_ADDRESS_RANGE_MEMORY = 1,
 128	ACPI_ADDRESS_RANGE_RESERVED = 2,
 129	ACPI_ADDRESS_RANGE_ACPI = 3,
 130	ACPI_ADDRESS_RANGE_NVS	= 4,
 131	ACPI_ADDRESS_RANGE_COUNT
 132};
 133
 134
 135/* Table Handlers */
 136typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 137
 138/* Debugger support */
 139
 140struct acpi_debugger_ops {
 141	int (*create_thread)(acpi_osd_exec_callback function, void *context);
 142	ssize_t (*write_log)(const char *msg);
 143	ssize_t (*read_cmd)(char *buffer, size_t length);
 144	int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
 145	int (*notify_command_complete)(void);
 146};
 147
 148struct acpi_debugger {
 149	const struct acpi_debugger_ops *ops;
 150	struct module *owner;
 151	struct mutex lock;
 152};
 153
 154#ifdef CONFIG_ACPI_DEBUGGER
 155int __init acpi_debugger_init(void);
 156int acpi_register_debugger(struct module *owner,
 157			   const struct acpi_debugger_ops *ops);
 158void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
 159int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
 160ssize_t acpi_debugger_write_log(const char *msg);
 161ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
 162int acpi_debugger_wait_command_ready(void);
 163int acpi_debugger_notify_command_complete(void);
 164#else
 165static inline int acpi_debugger_init(void)
 166{
 167	return -ENODEV;
 168}
 169
 170static inline int acpi_register_debugger(struct module *owner,
 171					 const struct acpi_debugger_ops *ops)
 172{
 173	return -ENODEV;
 174}
 175
 176static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
 177{
 178}
 179
 180static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
 181					      void *context)
 182{
 183	return -ENODEV;
 184}
 185
 186static inline int acpi_debugger_write_log(const char *msg)
 187{
 188	return -ENODEV;
 189}
 190
 191static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
 192{
 193	return -ENODEV;
 194}
 195
 196static inline int acpi_debugger_wait_command_ready(void)
 197{
 198	return -ENODEV;
 199}
 200
 201static inline int acpi_debugger_notify_command_complete(void)
 202{
 203	return -ENODEV;
 204}
 205#endif
 206
 207#define BAD_MADT_ENTRY(entry, end) (					    \
 208		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 209		((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 210
 211void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
 212void __acpi_unmap_table(void __iomem *map, unsigned long size);
 213int early_acpi_boot_init(void);
 214int acpi_boot_init (void);
 215void acpi_boot_table_prepare (void);
 216void acpi_boot_table_init (void);
 217int acpi_mps_check (void);
 218int acpi_numa_init (void);
 219
 220int acpi_locate_initial_tables (void);
 221void acpi_reserve_initial_tables (void);
 222void acpi_table_init_complete (void);
 223int acpi_table_init (void);
 224
 225static inline struct acpi_table_header *acpi_get_table_pointer(char *signature, u32 instance)
 226{
 227	struct acpi_table_header *table;
 228	int status = acpi_get_table(signature, instance, &table);
 229
 230	if (ACPI_FAILURE(status))
 231		return ERR_PTR(-ENOENT);
 232	return table;
 233}
 234DEFINE_FREE(acpi_put_table, struct acpi_table_header *, if (!IS_ERR_OR_NULL(_T)) acpi_put_table(_T))
 235
 236int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 237int __init_or_acpilib acpi_table_parse_entries(char *id,
 238		unsigned long table_size, int entry_id,
 239		acpi_tbl_entry_handler handler, unsigned int max_entries);
 240int __init_or_acpilib acpi_table_parse_entries_array(char *id,
 241		unsigned long table_size, struct acpi_subtable_proc *proc,
 242		int proc_num, 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 __init_or_acpilib
 247acpi_table_parse_cedt(enum acpi_cedt_type id,
 248		      acpi_tbl_entry_handler_arg handler_arg, void *arg);
 249
 250int acpi_parse_mcfg (struct acpi_table_header *header);
 251void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 252
 253#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
 254void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 255#else
 256static inline void
 257acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
 258#endif
 259
 260void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 261
 262#if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
 263void acpi_arch_dma_setup(struct device *dev);
 264#else
 265static inline void acpi_arch_dma_setup(struct device *dev) { }
 266#endif
 267
 268#ifdef CONFIG_ARM64
 269void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
 270#else
 271static inline void
 272acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
 273#endif
 274
 275#ifdef CONFIG_RISCV
 276void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa);
 277#else
 278static inline void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa) { }
 279#endif
 280
 281#ifndef PHYS_CPUID_INVALID
 282typedef u32 phys_cpuid_t;
 283#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 284#endif
 285
 286static inline bool invalid_logical_cpuid(u32 cpuid)
 287{
 288	return (int)cpuid < 0;
 289}
 290
 291static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 292{
 293	return phys_id == PHYS_CPUID_INVALID;
 294}
 295
 296
 297int __init acpi_get_madt_revision(void);
 298
 299/* Validate the processor object's proc_id */
 300bool acpi_duplicate_processor_id(int proc_id);
 301/* Processor _CTS control */
 302struct acpi_processor_power;
 303
 304#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
 305bool acpi_processor_claim_cst_control(void);
 306int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
 307				struct acpi_processor_power *info);
 308#else
 309static inline bool acpi_processor_claim_cst_control(void) { return false; }
 310static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
 311					      struct acpi_processor_power *info)
 312{
 313	return -ENODEV;
 314}
 315#endif
 316
 317#ifdef CONFIG_ACPI_HOTPLUG_CPU
 318/* Arch dependent functions for cpu hotplug support */
 319int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
 320		 int *pcpu);
 321int acpi_unmap_cpu(int cpu);
 322#endif /* CONFIG_ACPI_HOTPLUG_CPU */
 323
 324acpi_handle acpi_get_processor_handle(int cpu);
 325
 326#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 327int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 328#endif
 329
 330int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 331int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 332int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 333void acpi_irq_stats_init(void);
 334extern u32 acpi_irq_handled;
 335extern u32 acpi_irq_not_handled;
 336extern unsigned int acpi_sci_irq;
 337extern bool acpi_no_s5;
 338#define INVALID_ACPI_IRQ	((unsigned)-1)
 339static inline bool acpi_sci_irq_valid(void)
 340{
 341	return acpi_sci_irq != INVALID_ACPI_IRQ;
 342}
 343
 344extern int sbf_port;
 345
 346int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 347int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 348int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 349
 350typedef struct fwnode_handle *(*acpi_gsi_domain_disp_fn)(u32);
 351
 352void acpi_set_irq_model(enum acpi_irq_model_id model,
 353			acpi_gsi_domain_disp_fn fn);
 354acpi_gsi_domain_disp_fn acpi_get_gsi_dispatcher(void);
 355void acpi_set_gsi_to_irq_fallback(u32 (*)(u32));
 356
 357struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
 358					     unsigned int size,
 359					     struct fwnode_handle *fwnode,
 360					     const struct irq_domain_ops *ops,
 361					     void *host_data);
 362
 363#ifdef CONFIG_X86_IO_APIC
 364extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 365#else
 366static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
 367{
 368	return -1;
 369}
 370#endif
 371/*
 372 * This function undoes the effect of one call to acpi_register_gsi().
 373 * If this matches the last registration, any IRQ resources for gsi
 374 * are freed.
 375 */
 376void acpi_unregister_gsi (u32 gsi);
 377
 378struct pci_dev;
 379
 380struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin);
 381int acpi_pci_irq_enable (struct pci_dev *dev);
 382void acpi_penalize_isa_irq(int irq, int active);
 383bool acpi_isa_irq_available(int irq);
 384#ifdef CONFIG_PCI
 385void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 386#else
 387static inline void acpi_penalize_sci_irq(int irq, int trigger,
 388					int polarity)
 389{
 390}
 391#endif
 392void acpi_pci_irq_disable (struct pci_dev *dev);
 393
 394extern int ec_read(u8 addr, u8 *val);
 395extern int ec_write(u8 addr, u8 val);
 396extern int ec_transaction(u8 command,
 397                          const u8 *wdata, unsigned wdata_len,
 398                          u8 *rdata, unsigned rdata_len);
 399extern acpi_handle ec_get_handle(void);
 400
 401extern bool acpi_is_pnp_device(struct acpi_device *);
 402
 403#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 404
 405typedef void (*wmi_notify_handler) (union acpi_object *data, void *context);
 406
 407int wmi_instance_count(const char *guid);
 408
 409extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 410					u32 method_id,
 411					const struct acpi_buffer *in,
 412					struct acpi_buffer *out);
 413extern acpi_status wmi_query_block(const char *guid, u8 instance,
 414					struct acpi_buffer *out);
 415extern acpi_status wmi_set_block(const char *guid, u8 instance,
 416					const struct acpi_buffer *in);
 417extern acpi_status wmi_install_notify_handler(const char *guid,
 418					wmi_notify_handler handler, void *data);
 419extern acpi_status wmi_remove_notify_handler(const char *guid);
 420extern bool wmi_has_guid(const char *guid);
 421extern char *wmi_get_acpi_device_uid(const char *guid);
 422
 423#endif	/* CONFIG_ACPI_WMI */
 424
 425#define ACPI_VIDEO_OUTPUT_SWITCHING			0x0001
 426#define ACPI_VIDEO_DEVICE_POSTING			0x0002
 427#define ACPI_VIDEO_ROM_AVAILABLE			0x0004
 428#define ACPI_VIDEO_BACKLIGHT				0x0008
 429#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR		0x0010
 430#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO		0x0020
 431#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR	0x0040
 432#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO		0x0080
 433#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR			0x0100
 434#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO			0x0200
 435#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR		0x0400
 436#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO		0x0800
 437
 438extern char acpi_video_backlight_string[];
 439extern long acpi_is_video_device(acpi_handle handle);
 440
 441extern void acpi_osi_setup(char *str);
 442extern bool acpi_osi_is_win8(void);
 443
 444#ifdef CONFIG_ACPI_THERMAL_LIB
 445int thermal_acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
 446int thermal_acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
 447int thermal_acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
 448int thermal_acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
 449#endif
 450
 451#ifdef CONFIG_ACPI_HMAT
 452int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord);
 453#else
 454static inline int acpi_get_genport_coordinates(u32 uid,
 455					       struct access_coordinate *coord)
 456{
 457	return -EOPNOTSUPP;
 458}
 459#endif
 460
 461#ifdef CONFIG_ACPI_NUMA
 462int acpi_map_pxm_to_node(int pxm);
 463int acpi_get_node(acpi_handle handle);
 464
 465/**
 466 * pxm_to_online_node - Map proximity ID to online node
 467 * @pxm: ACPI proximity ID
 468 *
 469 * This is similar to pxm_to_node(), but always returns an online
 470 * node.  When the mapped node from a given proximity ID is offline, it
 471 * looks up the node distance table and returns the nearest online node.
 472 *
 473 * ACPI device drivers, which are called after the NUMA initialization has
 474 * completed in the kernel, can call this interface to obtain their device
 475 * NUMA topology from ACPI tables.  Such drivers do not have to deal with
 476 * offline nodes.  A node may be offline when SRAT memory entry does not exist,
 477 * or NUMA is disabled, ex. "numa=off" on x86.
 478 */
 479static inline int pxm_to_online_node(int pxm)
 480{
 481	int node = pxm_to_node(pxm);
 482
 483	return numa_map_to_online_node(node);
 484}
 485#else
 486static inline int pxm_to_online_node(int pxm)
 487{
 488	return 0;
 489}
 490static inline int acpi_map_pxm_to_node(int pxm)
 491{
 492	return 0;
 493}
 494static inline int acpi_get_node(acpi_handle handle)
 495{
 496	return 0;
 497}
 498#endif
 499extern int pnpacpi_disabled;
 500
 501#define PXM_INVAL	(-1)
 502
 503bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 504bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 505bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 506				     struct resource_win *win);
 507bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 508					 struct resource_win *win);
 509unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
 510unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
 511bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 512				 struct resource *res);
 513
 514void acpi_dev_free_resource_list(struct list_head *list);
 515int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 516			   int (*preproc)(struct acpi_resource *, void *),
 517			   void *preproc_data);
 518int acpi_dev_get_dma_resources(struct acpi_device *adev,
 519			       struct list_head *list);
 520int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
 521int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 522				  unsigned long types);
 523
 524static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 525						   void *arg)
 526{
 527	return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 528}
 529
 530struct acpi_device *acpi_resource_consumer(struct resource *res);
 531
 532int acpi_check_resource_conflict(const struct resource *res);
 533
 534int acpi_check_region(resource_size_t start, resource_size_t n,
 535		      const char *name);
 536
 537int acpi_resources_are_enforced(void);
 538
 539#ifdef CONFIG_HIBERNATION
 540extern int acpi_check_s4_hw_signature;
 541#endif
 542
 543#ifdef CONFIG_PM_SLEEP
 544void __init acpi_old_suspend_ordering(void);
 545void __init acpi_nvs_nosave(void);
 546void __init acpi_nvs_nosave_s3(void);
 547void __init acpi_sleep_no_blacklist(void);
 548#endif /* CONFIG_PM_SLEEP */
 549
 550int acpi_register_wakeup_handler(
 551	int wake_irq, bool (*wakeup)(void *context), void *context);
 552void acpi_unregister_wakeup_handler(
 553	bool (*wakeup)(void *context), void *context);
 554
 555struct acpi_osc_context {
 556	char *uuid_str;			/* UUID string */
 557	int rev;
 558	struct acpi_buffer cap;		/* list of DWORD capabilities */
 559	struct acpi_buffer ret;		/* free by caller if success */
 560};
 561
 562acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 563
 564/* Number of _OSC capability DWORDS depends on bridge type */
 565#define OSC_PCI_CAPABILITY_DWORDS		3
 566#define OSC_CXL_CAPABILITY_DWORDS		5
 567
 568/* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
 569#define OSC_QUERY_DWORD				0	/* DWORD 1 */
 570#define OSC_SUPPORT_DWORD			1	/* DWORD 2 */
 571#define OSC_CONTROL_DWORD			2	/* DWORD 3 */
 572#define OSC_EXT_SUPPORT_DWORD			3	/* DWORD 4 */
 573#define OSC_EXT_CONTROL_DWORD			4	/* DWORD 5 */
 574
 575/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 576#define OSC_QUERY_ENABLE			0x00000001  /* input */
 577#define OSC_REQUEST_ERROR			0x00000002  /* return */
 578#define OSC_INVALID_UUID_ERROR			0x00000004  /* return */
 579#define OSC_INVALID_REVISION_ERROR		0x00000008  /* return */
 580#define OSC_CAPABILITIES_MASK_ERROR		0x00000010  /* return */
 581
 582/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 583#define OSC_SB_PAD_SUPPORT			0x00000001
 584#define OSC_SB_PPC_OST_SUPPORT			0x00000002
 585#define OSC_SB_PR3_SUPPORT			0x00000004
 586#define OSC_SB_HOTPLUG_OST_SUPPORT		0x00000008
 587#define OSC_SB_APEI_SUPPORT			0x00000010
 588#define OSC_SB_CPC_SUPPORT			0x00000020
 589#define OSC_SB_CPCV2_SUPPORT			0x00000040
 590#define OSC_SB_PCLPI_SUPPORT			0x00000080
 591#define OSC_SB_OSLPI_SUPPORT			0x00000100
 592#define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT	0x00000200
 593#define OSC_SB_OVER_16_PSTATES_SUPPORT		0x00000400
 594#define OSC_SB_GED_SUPPORT			0x00000800
 595#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT		0x00001000
 596#define OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT	0x00002000
 597#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE		0x00004000
 598#define OSC_SB_GENERIC_INITIATOR_SUPPORT	0x00020000
 599#define OSC_SB_NATIVE_USB4_SUPPORT		0x00040000
 600#define OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT	0x00080000
 601#define OSC_SB_PRM_SUPPORT			0x00200000
 602#define OSC_SB_FFH_OPR_SUPPORT			0x00400000
 603
 604extern bool osc_sb_apei_support_acked;
 605extern bool osc_pc_lpi_support_confirmed;
 606extern bool osc_sb_native_usb4_support_confirmed;
 607extern bool osc_sb_cppc2_support_acked;
 608extern bool osc_cpc_flexible_adr_space_confirmed;
 609
 610/* USB4 Capabilities */
 611#define OSC_USB_USB3_TUNNELING			0x00000001
 612#define OSC_USB_DP_TUNNELING			0x00000002
 613#define OSC_USB_PCIE_TUNNELING			0x00000004
 614#define OSC_USB_XDOMAIN				0x00000008
 615
 616extern u32 osc_sb_native_usb4_control;
 617
 618/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 619#define OSC_PCI_EXT_CONFIG_SUPPORT		0x00000001
 620#define OSC_PCI_ASPM_SUPPORT			0x00000002
 621#define OSC_PCI_CLOCK_PM_SUPPORT		0x00000004
 622#define OSC_PCI_SEGMENT_GROUPS_SUPPORT		0x00000008
 623#define OSC_PCI_MSI_SUPPORT			0x00000010
 624#define OSC_PCI_EDR_SUPPORT			0x00000080
 625#define OSC_PCI_HPX_TYPE_3_SUPPORT		0x00000100
 626
 627/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 628#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	0x00000001
 629#define OSC_PCI_SHPC_NATIVE_HP_CONTROL		0x00000002
 630#define OSC_PCI_EXPRESS_PME_CONTROL		0x00000004
 631#define OSC_PCI_EXPRESS_AER_CONTROL		0x00000008
 632#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL	0x00000010
 633#define OSC_PCI_EXPRESS_LTR_CONTROL		0x00000020
 634#define OSC_PCI_EXPRESS_DPC_CONTROL		0x00000080
 635
 636/* CXL _OSC: Capabilities DWORD 4: Support Field */
 637#define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT	0x00000001
 638#define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT	0x00000002
 639#define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT	0x00000004
 640#define OSC_CXL_NATIVE_HP_SUPPORT		0x00000008
 641
 642/* CXL _OSC: Capabilities DWORD 5: Control Field */
 643#define OSC_CXL_ERROR_REPORTING_CONTROL		0x00000001
 644
 645static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
 646{
 647	u32 *ret = context->ret.pointer;
 648
 649	return ret[OSC_CONTROL_DWORD];
 650}
 651
 652static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
 653{
 654	u32 *ret = context->ret.pointer;
 655
 656	return ret[OSC_EXT_CONTROL_DWORD];
 657}
 658
 659#define ACPI_GSB_ACCESS_ATTRIB_QUICK		0x00000002
 660#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 661#define ACPI_GSB_ACCESS_ATTRIB_BYTE		0x00000006
 662#define ACPI_GSB_ACCESS_ATTRIB_WORD		0x00000008
 663#define ACPI_GSB_ACCESS_ATTRIB_BLOCK		0x0000000A
 664#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE	0x0000000B
 665#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL	0x0000000C
 666#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL	0x0000000D
 667#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES	0x0000000E
 668#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS	0x0000000F
 669
 670/* Enable _OST when all relevant hotplug operations are enabled */
 671#if defined(CONFIG_ACPI_HOTPLUG_CPU) &&			\
 672	defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&		\
 673	defined(CONFIG_ACPI_CONTAINER)
 674#define ACPI_HOTPLUG_OST
 675#endif
 676
 677/* _OST Source Event Code (OSPM Action) */
 678#define ACPI_OST_EC_OSPM_SHUTDOWN		0x100
 679#define ACPI_OST_EC_OSPM_EJECT			0x103
 680#define ACPI_OST_EC_OSPM_INSERTION		0x200
 681
 682/* _OST General Processing Status Code */
 683#define ACPI_OST_SC_SUCCESS			0x0
 684#define ACPI_OST_SC_NON_SPECIFIC_FAILURE	0x1
 685#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY		0x2
 686
 687/* _OST OS Shutdown Processing (0x100) Status Code */
 688#define ACPI_OST_SC_OS_SHUTDOWN_DENIED		0x80
 689#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS	0x81
 690#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED	0x82
 691#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED	0x83
 692
 693/* _OST Ejection Request (0x3, 0x103) Status Code */
 694#define ACPI_OST_SC_EJECT_NOT_SUPPORTED		0x80
 695#define ACPI_OST_SC_DEVICE_IN_USE		0x81
 696#define ACPI_OST_SC_DEVICE_BUSY			0x82
 697#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY	0x83
 698#define ACPI_OST_SC_EJECT_IN_PROGRESS		0x84
 699
 700/* _OST Insertion Request (0x200) Status Code */
 701#define ACPI_OST_SC_INSERT_IN_PROGRESS		0x80
 702#define ACPI_OST_SC_DRIVER_LOAD_FAILURE		0x81
 703#define ACPI_OST_SC_INSERT_NOT_SUPPORTED	0x82
 704
 705enum acpi_predicate {
 706	all_versions,
 707	less_than_or_equal,
 708	equal,
 709	greater_than_or_equal,
 710};
 711
 712/* Table must be terminted by a NULL entry */
 713struct acpi_platform_list {
 714	char	oem_id[ACPI_OEM_ID_SIZE+1];
 715	char	oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
 716	u32	oem_revision;
 717	char	*table;
 718	enum acpi_predicate pred;
 719	char	*reason;
 720	u32	data;
 721};
 722int acpi_match_platform_list(const struct acpi_platform_list *plat);
 723
 724extern void acpi_early_init(void);
 725extern void acpi_subsystem_init(void);
 726
 727extern int acpi_nvs_register(__u64 start, __u64 size);
 728
 729extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 730				    void *data);
 731
 732const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids,
 733						    const struct acpi_device *adev);
 734
 735const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 736					       const struct device *dev);
 737
 738const void *acpi_device_get_match_data(const struct device *dev);
 739extern bool acpi_driver_match_device(struct device *dev,
 740				     const struct device_driver *drv);
 741int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *);
 742int acpi_device_modalias(struct device *, char *, int);
 743
 744struct platform_device *acpi_create_platform_device(struct acpi_device *,
 745						    const struct property_entry *);
 746#define ACPI_PTR(_ptr)	(_ptr)
 747
 748static inline void acpi_device_set_enumerated(struct acpi_device *adev)
 749{
 750	adev->flags.visited = true;
 751}
 752
 753static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
 754{
 755	adev->flags.visited = false;
 756}
 757
 758enum acpi_reconfig_event  {
 759	ACPI_RECONFIG_DEVICE_ADD = 0,
 760	ACPI_RECONFIG_DEVICE_REMOVE,
 761};
 762
 763int acpi_reconfig_notifier_register(struct notifier_block *nb);
 764int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
 765
 766#ifdef CONFIG_ACPI_GTDT
 767int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
 768int acpi_gtdt_map_ppi(int type);
 769bool acpi_gtdt_c3stop(int type);
 770#endif
 771
 772#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
 773static __always_inline void acpi_arch_set_root_pointer(u64 addr)
 774{
 775}
 776#endif
 777
 778#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
 779static __always_inline u64 acpi_arch_get_root_pointer(void)
 780{
 781	return 0;
 782}
 783#endif
 784
 785int acpi_get_local_u64_address(acpi_handle handle, u64 *addr);
 786int acpi_get_local_address(acpi_handle handle, u32 *addr);
 787const char *acpi_get_subsystem_id(acpi_handle handle);
 788
 789#ifdef CONFIG_ACPI_MRRM
 790int acpi_mrrm_max_mem_region(void);
 791#endif
 792
 793#else	/* !CONFIG_ACPI */
 794
 795#define acpi_disabled 1
 796
 797#define ACPI_COMPANION(dev)		(NULL)
 798#define ACPI_COMPANION_SET(dev, adev)	do { } while (0)
 799#define ACPI_HANDLE(dev)		(NULL)
 800#define ACPI_HANDLE_FWNODE(fwnode)	(NULL)
 801
 802/* Get rid of the -Wunused-variable for adev */
 803#define acpi_dev_uid_match(adev, uid2)			(adev && false)
 804#define acpi_dev_hid_uid_match(adev, hid2, uid2)	(adev && false)
 805
 806struct fwnode_handle;
 807
 808static inline bool acpi_dev_found(const char *hid)
 809{
 810	return false;
 811}
 812
 813static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
 814{
 815	return false;
 816}
 817
 818struct acpi_device;
 819
 820static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
 821{
 822	return -ENODEV;
 823}
 824
 825static inline struct acpi_device *
 826acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
 827{
 828	return NULL;
 829}
 830
 831static inline bool acpi_reduced_hardware(void)
 832{
 833	return false;
 834}
 835
 836static inline void acpi_dev_put(struct acpi_device *adev) {}
 837
 838static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
 839{
 840	return false;
 841}
 842
 843static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
 844{
 845	return false;
 846}
 847
 848static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
 849{
 850	return NULL;
 851}
 852
 853static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
 854{
 855	return false;
 856}
 857
 858static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
 859{
 860	return NULL;
 861}
 862
 863static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
 864					const char *name)
 865{
 866	return false;
 867}
 868
 869static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 870{
 871	return NULL;
 872}
 873
 874static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
 875{
 876	return NULL;
 877}
 878
 879static inline bool has_acpi_companion(struct device *dev)
 880{
 881	return false;
 882}
 883
 884static inline void acpi_preset_companion(struct device *dev,
 885					 struct acpi_device *parent, u64 addr)
 886{
 887}
 888
 889static inline const char *acpi_dev_name(struct acpi_device *adev)
 890{
 891	return NULL;
 892}
 893
 894static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
 895{
 896	return NULL;
 897}
 898
 899static inline void acpi_early_init(void) { }
 900static inline void acpi_subsystem_init(void) { }
 901
 902static inline int early_acpi_boot_init(void)
 903{
 904	return 0;
 905}
 906static inline int acpi_boot_init(void)
 907{
 908	return 0;
 909}
 910
 911static inline void acpi_boot_table_prepare(void)
 912{
 913}
 914
 915static inline void acpi_boot_table_init(void)
 916{
 917}
 918
 919static inline int acpi_mps_check(void)
 920{
 921	return 0;
 922}
 923
 924static inline int acpi_check_resource_conflict(struct resource *res)
 925{
 926	return 0;
 927}
 928
 929static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 930				    const char *name)
 931{
 932	return 0;
 933}
 934
 935struct acpi_table_header;
 936static inline int acpi_table_parse(char *id,
 937				int (*handler)(struct acpi_table_header *))
 938{
 939	return -ENODEV;
 940}
 941
 942static inline int acpi_nvs_register(__u64 start, __u64 size)
 943{
 944	return 0;
 945}
 946
 947static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 948					   void *data)
 949{
 950	return 0;
 951}
 952
 953struct acpi_device_id;
 954
 955static inline const struct acpi_device_id *acpi_match_acpi_device(
 956	const struct acpi_device_id *ids, const struct acpi_device *adev)
 957{
 958	return NULL;
 959}
 960
 961static inline const struct acpi_device_id *acpi_match_device(
 962	const struct acpi_device_id *ids, const struct device *dev)
 963{
 964	return NULL;
 965}
 966
 967static inline const void *acpi_device_get_match_data(const struct device *dev)
 968{
 969	return NULL;
 970}
 971
 972static inline bool acpi_driver_match_device(struct device *dev,
 973					    const struct device_driver *drv)
 974{
 975	return false;
 976}
 977
 978static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid,
 979				  u64 rev, u64 funcs)
 980{
 981	return false;
 982}
 983
 984static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
 985						   const guid_t *guid,
 986						   u64 rev, u64 func,
 987						   union acpi_object *argv4)
 988{
 989	return NULL;
 990}
 991
 992static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle,
 993							 const guid_t *guid,
 994							 u64 rev, u64 func,
 995							 union acpi_object *argv4,
 996							 acpi_object_type type)
 997{
 998	return NULL;
 999}
1000
1001static inline int acpi_device_uevent_modalias(const struct device *dev,
1002				struct kobj_uevent_env *env)
1003{
1004	return -ENODEV;
1005}
1006
1007static inline int acpi_device_modalias(struct device *dev,
1008				char *buf, int size)
1009{
1010	return -ENODEV;
1011}
1012
1013static inline struct platform_device *
1014acpi_create_platform_device(struct acpi_device *adev,
1015			    const struct property_entry *properties)
1016{
1017	return NULL;
1018}
1019
1020static inline bool acpi_dma_supported(const struct acpi_device *adev)
1021{
1022	return false;
1023}
1024
1025static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
1026{
1027	return DEV_DMA_NOT_SUPPORTED;
1028}
1029
1030static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
1031{
1032	return -ENODEV;
1033}
1034
1035static inline int acpi_dma_configure(struct device *dev,
1036				     enum dev_dma_attr attr)
1037{
1038	return 0;
1039}
1040
1041static inline int acpi_dma_configure_id(struct device *dev,
1042					enum dev_dma_attr attr,
1043					const u32 *input_id)
1044{
1045	return 0;
1046}
1047
1048#define ACPI_PTR(_ptr)	(NULL)
1049
1050static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1051{
1052}
1053
1054static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1055{
1056}
1057
1058static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1059{
1060	return -EINVAL;
1061}
1062
1063static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1064{
1065	return -EINVAL;
1066}
1067
1068static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1069{
1070	return NULL;
1071}
1072
1073static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1074{
1075	return -ENODEV;
1076}
1077
1078static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1079{
1080	return ERR_PTR(-ENODEV);
1081}
1082
1083static inline int acpi_register_wakeup_handler(int wake_irq,
1084	bool (*wakeup)(void *context), void *context)
1085{
1086	return -ENXIO;
1087}
1088
1089static inline void acpi_unregister_wakeup_handler(
1090	bool (*wakeup)(void *context), void *context) { }
1091
1092struct acpi_osc_context;
1093static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1094{
1095	return 0;
1096}
1097
1098static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1099{
1100	return 0;
1101}
1102
1103static inline bool acpi_sleep_state_supported(u8 sleep_state)
1104{
1105	return false;
1106}
1107
1108static inline acpi_handle acpi_get_processor_handle(int cpu)
1109{
1110	return NULL;
1111}
1112
1113static inline int acpi_mrrm_max_mem_region(void)
1114{
1115	return 1;
1116}
1117
1118#endif	/* !CONFIG_ACPI */
1119
1120#ifdef CONFIG_ACPI_HMAT
1121int hmat_get_extended_linear_cache_size(struct resource *backing_res, int nid,
1122					resource_size_t *size);
1123#else
1124static inline int hmat_get_extended_linear_cache_size(struct resource *backing_res,
1125						      int nid, resource_size_t *size)
1126{
1127	return -EOPNOTSUPP;
1128}
1129#endif
1130
1131extern void arch_post_acpi_subsys_init(void);
1132
1133#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1134int acpi_ioapic_add(acpi_handle root);
1135#else
1136static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1137#endif
1138
1139#ifdef CONFIG_ACPI
1140void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1141			       u32 pm1a_ctrl,  u32 pm1b_ctrl));
1142
1143acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1144				  u32 pm1a_control, u32 pm1b_control);
1145
1146void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1147				        u32 val_a,  u32 val_b));
1148
1149acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1150					   u32 val_a, u32 val_b);
1151struct acpi_s2idle_dev_ops {
1152	struct list_head list_node;
1153	void (*prepare)(void);
1154	void (*check)(void);
1155	void (*restore)(void);
1156};
1157#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
1158int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1159void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1160#else /* CONFIG_SUSPEND && CONFIG_X86 */
1161static inline int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg)
1162{
1163	return -ENODEV;
1164}
1165static inline void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg)
1166{
1167}
1168#endif /* CONFIG_SUSPEND && CONFIG_X86 */
1169void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1170#else
1171#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1172#endif
1173
1174#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1175int acpi_dev_suspend(struct device *dev, bool wakeup);
1176int acpi_dev_resume(struct device *dev);
1177int acpi_subsys_runtime_suspend(struct device *dev);
1178int acpi_subsys_runtime_resume(struct device *dev);
1179int acpi_dev_pm_attach(struct device *dev, bool power_on);
1180bool acpi_storage_d3(struct device *dev);
1181bool acpi_dev_state_d0(struct device *dev);
1182#else
1183static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
1184static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
1185static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1186{
1187	return 0;
1188}
1189static inline bool acpi_storage_d3(struct device *dev)
1190{
1191	return false;
1192}
1193static inline bool acpi_dev_state_d0(struct device *dev)
1194{
1195	return true;
1196}
1197#endif
1198
1199#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1200int acpi_subsys_prepare(struct device *dev);
1201void acpi_subsys_complete(struct device *dev);
1202int acpi_subsys_suspend_late(struct device *dev);
1203int acpi_subsys_suspend_noirq(struct device *dev);
1204int acpi_subsys_suspend(struct device *dev);
1205int acpi_subsys_freeze(struct device *dev);
1206int acpi_subsys_poweroff(struct device *dev);
1207int acpi_subsys_restore_early(struct device *dev);
1208#else
1209static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1210static inline void acpi_subsys_complete(struct device *dev) {}
1211static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1212static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1213static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1214static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1215static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1216static inline int acpi_subsys_restore_early(struct device *dev) { return 0; }
1217#endif
1218
1219#if defined(CONFIG_ACPI_EC) && defined(CONFIG_PM_SLEEP)
1220void acpi_ec_mark_gpe_for_wake(void);
1221void acpi_ec_set_gpe_wake_mask(u8 action);
1222#else
1223static inline void acpi_ec_mark_gpe_for_wake(void) {}
1224static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1225#endif
1226
1227#ifdef CONFIG_ACPI
1228char *acpi_handle_path(acpi_handle handle);
1229__printf(3, 4)
1230void acpi_handle_printk(const char *level, acpi_handle handle,
1231			const char *fmt, ...);
1232void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1233				  acpi_status status);
1234#else	/* !CONFIG_ACPI */
1235static inline __printf(3, 4) void
1236acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1237static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1238						const char *name,
1239						acpi_status status) {}
1240#endif	/* !CONFIG_ACPI */
1241
1242#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1243__printf(3, 4)
1244void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1245#endif
1246
1247/*
1248 * acpi_handle_<level>: Print message with ACPI prefix and object path
1249 *
1250 * These interfaces acquire the global namespace mutex to obtain an object
1251 * path.  In interrupt context, it shows the object path as <n/a>.
1252 */
1253#define acpi_handle_emerg(handle, fmt, ...)				\
1254	acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1255#define acpi_handle_alert(handle, fmt, ...)				\
1256	acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1257#define acpi_handle_crit(handle, fmt, ...)				\
1258	acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1259#define acpi_handle_err(handle, fmt, ...)				\
1260	acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1261#define acpi_handle_warn(handle, fmt, ...)				\
1262	acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1263#define acpi_handle_notice(handle, fmt, ...)				\
1264	acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1265#define acpi_handle_info(handle, fmt, ...)				\
1266	acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1267
1268#if defined(DEBUG)
1269#define acpi_handle_debug(handle, fmt, ...)				\
1270	acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1271#else
1272#if defined(CONFIG_DYNAMIC_DEBUG)
1273#define acpi_handle_debug(handle, fmt, ...)				\
1274	_dynamic_func_call(fmt, __acpi_handle_debug,			\
1275			   handle, pr_fmt(fmt), ##__VA_ARGS__)
1276#else
1277#define acpi_handle_debug(handle, fmt, ...)				\
1278({									\
1279	if (0)								\
1280		acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1281	0;								\
1282})
1283#endif
1284#endif
1285
1286#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1287bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1288				struct acpi_resource_gpio **agpio);
1289bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1290			       struct acpi_resource_gpio **agpio);
1291int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, int index,
1292				  bool *wake_capable);
1293#else
1294static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1295					      struct acpi_resource_gpio **agpio)
1296{
1297	return false;
1298}
1299static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1300					     struct acpi_resource_gpio **agpio)
1301{
1302	return false;
1303}
1304static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id,
1305						int index, bool *wake_capable)
1306{
1307	return -ENXIO;
1308}
1309#endif
1310
1311static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1312					     bool *wake_capable)
1313{
1314	return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1315}
1316
1317static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *con_id,
1318					   int index)
1319{
1320	return acpi_dev_gpio_irq_wake_get_by(adev, con_id, index, NULL);
1321}
1322
1323static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1324{
1325	return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1326}
1327
1328/* Device properties */
1329
1330#ifdef CONFIG_ACPI
1331int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1332			  acpi_object_type type, const union acpi_object **obj);
1333int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1334				const char *name, size_t index, size_t num_args,
1335				struct fwnode_reference_args *args);
1336
1337static inline int acpi_node_get_property_reference(
1338				const struct fwnode_handle *fwnode,
1339				const char *name, size_t index,
1340				struct fwnode_reference_args *args)
1341{
1342	return __acpi_node_get_property_reference(fwnode, name, index,
1343		NR_FWNODE_REFERENCE_ARGS, args);
1344}
1345
1346static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1347{
1348	return !list_empty(&adev->data.properties);
1349}
1350
1351struct acpi_device_properties *
1352acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1353		    union acpi_object *properties);
1354
1355int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1356		       void **valptr);
1357
1358struct acpi_probe_entry;
1359typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1360						 struct acpi_probe_entry *);
1361
1362#define ACPI_TABLE_ID_LEN	5
1363
1364/**
1365 * struct acpi_probe_entry - boot-time probing entry
1366 * @id:			ACPI table name
1367 * @type:		Optional subtable type to match
1368 *			(if @id contains subtables)
1369 * @subtable_valid:	Optional callback to check the validity of
1370 *			the subtable
1371 * @probe_table:	Callback to the driver being probed when table
1372 *			match is successful
1373 * @probe_subtbl:	Callback to the driver being probed when table and
1374 *			subtable match (and optional callback is successful)
1375 * @driver_data:	Sideband data provided back to the driver
1376 */
1377struct acpi_probe_entry {
1378	__u8 id[ACPI_TABLE_ID_LEN];
1379	__u8 type;
1380	acpi_probe_entry_validate_subtbl subtable_valid;
1381	union {
1382		acpi_tbl_table_handler probe_table;
1383		acpi_tbl_entry_handler probe_subtbl;
1384	};
1385	kernel_ulong_t driver_data;
1386};
1387
1388void arch_sort_irqchip_probe(struct acpi_probe_entry *ap_head, int nr);
1389
1390#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable,	\
1391				 valid, data, fn)			\
1392	static const struct acpi_probe_entry __acpi_probe_##name	\
1393		__used __section("__" #table "_acpi_probe_table") = {	\
1394			.id = table_id,					\
1395			.type = subtable,				\
1396			.subtable_valid = valid,			\
1397			.probe_table = fn,				\
1398			.driver_data = data,				\
1399		}
1400
1401#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id,	\
1402					  subtable, valid, data, fn)	\
1403	static const struct acpi_probe_entry __acpi_probe_##name	\
1404		__used __section("__" #table "_acpi_probe_table") = {	\
1405			.id = table_id,					\
1406			.type = subtable,				\
1407			.subtable_valid = valid,			\
1408			.probe_subtbl = fn,				\
1409			.driver_data = data,				\
1410		}
1411
1412#define ACPI_PROBE_TABLE(name)		__##name##_acpi_probe_table
1413#define ACPI_PROBE_TABLE_END(name)	__##name##_acpi_probe_table_end
1414
1415int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1416
1417#define acpi_probe_device_table(t)					\
1418	({ 								\
1419		extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),	\
1420			                       ACPI_PROBE_TABLE_END(t);	\
1421		__acpi_probe_device_table(&ACPI_PROBE_TABLE(t),		\
1422					  (&ACPI_PROBE_TABLE_END(t) -	\
1423					   &ACPI_PROBE_TABLE(t)));	\
1424	})
1425#else
1426static inline int acpi_dev_get_property(struct acpi_device *adev,
1427					const char *name, acpi_object_type type,
1428					const union acpi_object **obj)
1429{
1430	return -ENXIO;
1431}
1432
1433static inline int
1434__acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1435				const char *name, size_t index, size_t num_args,
1436				struct fwnode_reference_args *args)
1437{
1438	return -ENXIO;
1439}
1440
1441static inline int
1442acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1443				 const char *name, size_t index,
1444				 struct fwnode_reference_args *args)
1445{
1446	return -ENXIO;
1447}
1448
1449static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1450				     const char *propname,
1451				     void **valptr)
1452{
1453	return -ENXIO;
1454}
1455
1456static inline struct fwnode_handle *
1457acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1458			     struct fwnode_handle *prev)
1459{
1460	return ERR_PTR(-ENXIO);
1461}
1462
1463static inline int
1464acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1465			       struct fwnode_handle **remote,
1466			       struct fwnode_handle **port,
1467			       struct fwnode_handle **endpoint)
1468{
1469	return -ENXIO;
1470}
1471
1472#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1473	static const void * __acpi_table_##name[]			\
1474		__attribute__((unused))					\
1475		 = { (void *) table_id,					\
1476		     (void *) subtable,					\
1477		     (void *) valid,					\
1478		     (void *) fn,					\
1479		     (void *) data }
1480
1481#define acpi_probe_device_table(t)	({ int __r = 0; __r;})
1482#endif
1483
1484#ifdef CONFIG_ACPI_TABLE_UPGRADE
1485void acpi_table_upgrade(void);
1486#else
1487static inline void acpi_table_upgrade(void) { }
1488#endif
1489
1490#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1491extern bool acpi_has_watchdog(void);
1492#else
1493static inline bool acpi_has_watchdog(void) { return false; }
1494#endif
1495
1496#ifdef CONFIG_ACPI_SPCR_TABLE
1497extern bool qdf2400_e44_present;
1498int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1499#else
1500static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1501{
1502	return -ENODEV;
1503}
1504#endif
1505
1506#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1507int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1508const struct cpumask *acpi_irq_get_affinity(acpi_handle handle,
1509					    unsigned int index);
1510#else
1511static inline
1512int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1513{
1514	return -EINVAL;
1515}
1516static inline const struct cpumask *acpi_irq_get_affinity(acpi_handle handle,
1517							  unsigned int index)
1518{
1519	return NULL;
1520}
1521#endif
1522
1523#ifdef CONFIG_ACPI_LPIT
1524int lpit_read_residency_count_address(u64 *address);
1525#else
1526static inline int lpit_read_residency_count_address(u64 *address)
1527{
1528	return -EINVAL;
1529}
1530#endif
1531
1532#ifdef CONFIG_ACPI_PROCESSOR_IDLE
1533#ifndef arch_get_idle_state_flags
1534static inline unsigned int arch_get_idle_state_flags(u32 arch_flags)
1535{
1536	return 0;
1537}
1538#endif
1539#endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1540
1541#ifdef CONFIG_ACPI_PPTT
1542int acpi_pptt_cpu_is_thread(unsigned int cpu);
1543int find_acpi_cpu_topology(unsigned int cpu, int level);
1544int find_acpi_cpu_topology_cluster(unsigned int cpu);
1545int find_acpi_cpu_topology_package(unsigned int cpu);
1546int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1547void acpi_pptt_get_cpus_from_container(u32 acpi_cpu_id, cpumask_t *cpus);
1548int find_acpi_cache_level_from_id(u32 cache_id);
1549int acpi_pptt_get_cpumask_from_cache_id(u32 cache_id, cpumask_t *cpus);
1550#else
1551static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1552{
1553	return -EINVAL;
1554}
1555static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1556{
1557	return -EINVAL;
1558}
1559static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1560{
1561	return -EINVAL;
1562}
1563static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1564{
1565	return -EINVAL;
1566}
1567static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1568{
1569	return -EINVAL;
1570}
1571static inline void acpi_pptt_get_cpus_from_container(u32 acpi_cpu_id,
1572						     cpumask_t *cpus) { }
1573static inline int find_acpi_cache_level_from_id(u32 cache_id)
1574{
1575	return -ENOENT;
1576}
1577static inline int acpi_pptt_get_cpumask_from_cache_id(u32 cache_id,
1578						      cpumask_t *cpus)
1579{
1580	return -ENOENT;
1581}
1582#endif
1583
1584void acpi_arch_init(void);
1585
1586#ifdef CONFIG_ACPI_PCC
1587void acpi_init_pcc(void);
1588#else
1589static inline void acpi_init_pcc(void) { }
1590#endif
1591
1592#ifdef CONFIG_ACPI_FFH
1593void acpi_init_ffh(void);
1594extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt,
1595					     void **region_ctxt);
1596extern int acpi_ffh_address_space_arch_handler(acpi_integer *value,
1597					       void *region_context);
1598#else
1599static inline void acpi_init_ffh(void) { }
1600#endif
1601
1602#ifdef CONFIG_ACPI
1603extern void acpi_device_notify(struct device *dev);
1604extern void acpi_device_notify_remove(struct device *dev);
1605#else
1606static inline void acpi_device_notify(struct device *dev) { }
1607static inline void acpi_device_notify_remove(struct device *dev) { }
1608#endif
1609
1610static inline void acpi_use_parent_companion(struct device *dev)
1611{
1612	ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent));
1613}
1614
1615#ifdef CONFIG_ACPI_NUMA
1616bool acpi_node_backed_by_real_pxm(int nid);
1617#else
1618static inline bool acpi_node_backed_by_real_pxm(int nid)
1619{
1620	return false;
1621}
1622#endif
1623
1624#endif	/*_LINUX_ACPI_H*/