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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/resource_ext.h> 14#include <linux/device.h> 15#include <linux/mod_devicetable.h> 16#include <linux/property.h> 17#include <linux/uuid.h> 18 19struct irq_domain; 20struct irq_domain_ops; 21 22#ifndef _LINUX 23#define _LINUX 24#endif 25#include <acpi/acpi.h> 26 27#ifdef CONFIG_ACPI 28 29#include <linux/list.h> 30#include <linux/dynamic_debug.h> 31#include <linux/module.h> 32#include <linux/mutex.h> 33 34#include <acpi/acpi_bus.h> 35#include <acpi/acpi_drivers.h> 36#include <acpi/acpi_numa.h> 37#include <acpi/acpi_io.h> 38#include <asm/acpi.h> 39 40static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 41{ 42 return adev ? adev->handle : NULL; 43} 44 45#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 46#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 47 acpi_fwnode_handle(adev) : NULL) 48#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 49#define ACPI_HANDLE_FWNODE(fwnode) \ 50 acpi_device_handle(to_acpi_device_node(fwnode)) 51 52static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 53{ 54 struct fwnode_handle *fwnode; 55 56 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 57 if (!fwnode) 58 return NULL; 59 60 fwnode_init(fwnode, &acpi_static_fwnode_ops); 61 62 return fwnode; 63} 64 65static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 66{ 67 if (WARN_ON(!is_acpi_static_node(fwnode))) 68 return; 69 70 kfree(fwnode); 71} 72 73static inline bool has_acpi_companion(struct device *dev) 74{ 75 return is_acpi_device_node(dev->fwnode); 76} 77 78static inline void acpi_preset_companion(struct device *dev, 79 struct acpi_device *parent, u64 addr) 80{ 81 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 82} 83 84static inline const char *acpi_dev_name(struct acpi_device *adev) 85{ 86 return dev_name(&adev->dev); 87} 88 89struct device *acpi_get_first_physical_node(struct acpi_device *adev); 90 91enum acpi_irq_model_id { 92 ACPI_IRQ_MODEL_PIC = 0, 93 ACPI_IRQ_MODEL_IOAPIC, 94 ACPI_IRQ_MODEL_IOSAPIC, 95 ACPI_IRQ_MODEL_PLATFORM, 96 ACPI_IRQ_MODEL_GIC, 97 ACPI_IRQ_MODEL_LPIC, 98 ACPI_IRQ_MODEL_COUNT 99}; 100 101extern enum acpi_irq_model_id acpi_irq_model; 102 103enum acpi_interrupt_id { 104 ACPI_INTERRUPT_PMI = 1, 105 ACPI_INTERRUPT_INIT, 106 ACPI_INTERRUPT_CPEI, 107 ACPI_INTERRUPT_COUNT 108}; 109 110#define ACPI_SPACE_MEM 0 111 112enum acpi_address_range_id { 113 ACPI_ADDRESS_RANGE_MEMORY = 1, 114 ACPI_ADDRESS_RANGE_RESERVED = 2, 115 ACPI_ADDRESS_RANGE_ACPI = 3, 116 ACPI_ADDRESS_RANGE_NVS = 4, 117 ACPI_ADDRESS_RANGE_COUNT 118}; 119 120 121/* Table Handlers */ 122union acpi_subtable_headers { 123 struct acpi_subtable_header common; 124 struct acpi_hmat_structure hmat; 125 struct acpi_prmt_module_header prmt; 126 struct acpi_cedt_header cedt; 127}; 128 129typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 130 131typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 132 const unsigned long end); 133 134typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 135 void *arg, const unsigned long end); 136 137/* Debugger support */ 138 139struct acpi_debugger_ops { 140 int (*create_thread)(acpi_osd_exec_callback function, void *context); 141 ssize_t (*write_log)(const char *msg); 142 ssize_t (*read_cmd)(char *buffer, size_t length); 143 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 144 int (*notify_command_complete)(void); 145}; 146 147struct acpi_debugger { 148 const struct acpi_debugger_ops *ops; 149 struct module *owner; 150 struct mutex lock; 151}; 152 153#ifdef CONFIG_ACPI_DEBUGGER 154int __init acpi_debugger_init(void); 155int acpi_register_debugger(struct module *owner, 156 const struct acpi_debugger_ops *ops); 157void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 158int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 159ssize_t acpi_debugger_write_log(const char *msg); 160ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 161int acpi_debugger_wait_command_ready(void); 162int acpi_debugger_notify_command_complete(void); 163#else 164static inline int acpi_debugger_init(void) 165{ 166 return -ENODEV; 167} 168 169static inline int acpi_register_debugger(struct module *owner, 170 const struct acpi_debugger_ops *ops) 171{ 172 return -ENODEV; 173} 174 175static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 176{ 177} 178 179static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 180 void *context) 181{ 182 return -ENODEV; 183} 184 185static inline int acpi_debugger_write_log(const char *msg) 186{ 187 return -ENODEV; 188} 189 190static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 191{ 192 return -ENODEV; 193} 194 195static inline int acpi_debugger_wait_command_ready(void) 196{ 197 return -ENODEV; 198} 199 200static inline int acpi_debugger_notify_command_complete(void) 201{ 202 return -ENODEV; 203} 204#endif 205 206#define BAD_MADT_ENTRY(entry, end) ( \ 207 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 208 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 209 210struct acpi_subtable_proc { 211 int id; 212 acpi_tbl_entry_handler handler; 213 acpi_tbl_entry_handler_arg handler_arg; 214 void *arg; 215 int count; 216}; 217 218void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 219void __acpi_unmap_table(void __iomem *map, unsigned long size); 220int early_acpi_boot_init(void); 221int acpi_boot_init (void); 222void acpi_boot_table_prepare (void); 223void acpi_boot_table_init (void); 224int acpi_mps_check (void); 225int acpi_numa_init (void); 226 227int acpi_locate_initial_tables (void); 228void acpi_reserve_initial_tables (void); 229void acpi_table_init_complete (void); 230int acpi_table_init (void); 231 232#ifdef CONFIG_ACPI_TABLE_LIB 233#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 234#define __init_or_acpilib 235#define __initdata_or_acpilib 236#else 237#define EXPORT_SYMBOL_ACPI_LIB(x) 238#define __init_or_acpilib __init 239#define __initdata_or_acpilib __initdata 240#endif 241 242int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 243int __init_or_acpilib acpi_table_parse_entries(char *id, 244 unsigned long table_size, int entry_id, 245 acpi_tbl_entry_handler handler, unsigned int max_entries); 246int __init_or_acpilib acpi_table_parse_entries_array(char *id, 247 unsigned long table_size, struct acpi_subtable_proc *proc, 248 int proc_num, unsigned int max_entries); 249int acpi_table_parse_madt(enum acpi_madt_type id, 250 acpi_tbl_entry_handler handler, 251 unsigned int max_entries); 252int __init_or_acpilib 253acpi_table_parse_cedt(enum acpi_cedt_type id, 254 acpi_tbl_entry_handler_arg handler_arg, void *arg); 255 256int acpi_parse_mcfg (struct acpi_table_header *header); 257void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 258 259/* the following numa functions are architecture-dependent */ 260void acpi_numa_slit_init (struct acpi_table_slit *slit); 261 262#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 263void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 264#else 265static inline void 266acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 267#endif 268 269void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 270 271#if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 272void acpi_arch_dma_setup(struct device *dev); 273#else 274static inline void acpi_arch_dma_setup(struct device *dev) { } 275#endif 276 277#ifdef CONFIG_ARM64 278void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 279#else 280static inline void 281acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 282#endif 283 284int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 285 286#ifndef PHYS_CPUID_INVALID 287typedef u32 phys_cpuid_t; 288#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 289#endif 290 291static inline bool invalid_logical_cpuid(u32 cpuid) 292{ 293 return (int)cpuid < 0; 294} 295 296static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 297{ 298 return phys_id == PHYS_CPUID_INVALID; 299} 300 301/* Validate the processor object's proc_id */ 302bool acpi_duplicate_processor_id(int proc_id); 303/* Processor _CTS control */ 304struct acpi_processor_power; 305 306#ifdef CONFIG_ACPI_PROCESSOR_CSTATE 307bool acpi_processor_claim_cst_control(void); 308int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 309 struct acpi_processor_power *info); 310#else 311static inline bool acpi_processor_claim_cst_control(void) { return false; } 312static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 313 struct acpi_processor_power *info) 314{ 315 return -ENODEV; 316} 317#endif 318 319#ifdef CONFIG_ACPI_HOTPLUG_CPU 320/* Arch dependent functions for cpu hotplug support */ 321int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 322 int *pcpu); 323int acpi_unmap_cpu(int cpu); 324#endif /* CONFIG_ACPI_HOTPLUG_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; 345extern unsigned long acpi_realmode_flags; 346 347int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 348int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 349int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 350 351void acpi_set_irq_model(enum acpi_irq_model_id model, 352 struct fwnode_handle *(*)(u32)); 353void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 354 355struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 356 unsigned int size, 357 struct fwnode_handle *fwnode, 358 const struct irq_domain_ops *ops, 359 void *host_data); 360 361#ifdef CONFIG_X86_IO_APIC 362extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 363#else 364static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 365{ 366 return -1; 367} 368#endif 369/* 370 * This function undoes the effect of one call to acpi_register_gsi(). 371 * If this matches the last registration, any IRQ resources for gsi 372 * are freed. 373 */ 374void acpi_unregister_gsi (u32 gsi); 375 376struct pci_dev; 377 378int acpi_pci_irq_enable (struct pci_dev *dev); 379void acpi_penalize_isa_irq(int irq, int active); 380bool acpi_isa_irq_available(int irq); 381#ifdef CONFIG_PCI 382void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 383#else 384static inline void acpi_penalize_sci_irq(int irq, int trigger, 385 int polarity) 386{ 387} 388#endif 389void acpi_pci_irq_disable (struct pci_dev *dev); 390 391extern int ec_read(u8 addr, u8 *val); 392extern int ec_write(u8 addr, u8 val); 393extern int ec_transaction(u8 command, 394 const u8 *wdata, unsigned wdata_len, 395 u8 *rdata, unsigned rdata_len); 396extern acpi_handle ec_get_handle(void); 397 398extern bool acpi_is_pnp_device(struct acpi_device *); 399 400#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 401 402typedef void (*wmi_notify_handler) (u32 value, void *context); 403 404int wmi_instance_count(const char *guid); 405 406extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 407 u32 method_id, 408 const struct acpi_buffer *in, 409 struct acpi_buffer *out); 410extern acpi_status wmi_query_block(const char *guid, u8 instance, 411 struct acpi_buffer *out); 412extern acpi_status wmi_set_block(const char *guid, u8 instance, 413 const struct acpi_buffer *in); 414extern acpi_status wmi_install_notify_handler(const char *guid, 415 wmi_notify_handler handler, void *data); 416extern acpi_status wmi_remove_notify_handler(const char *guid); 417extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 418extern bool wmi_has_guid(const char *guid); 419extern char *wmi_get_acpi_device_uid(const char *guid); 420 421#endif /* CONFIG_ACPI_WMI */ 422 423#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 424#define ACPI_VIDEO_DEVICE_POSTING 0x0002 425#define ACPI_VIDEO_ROM_AVAILABLE 0x0004 426#define ACPI_VIDEO_BACKLIGHT 0x0008 427#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 428#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 429#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 430#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 431#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 432#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 433#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 434#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 435 436extern char acpi_video_backlight_string[]; 437extern long acpi_is_video_device(acpi_handle handle); 438extern int acpi_blacklisted(void); 439extern void acpi_osi_setup(char *str); 440extern bool acpi_osi_is_win8(void); 441 442#ifdef CONFIG_ACPI_NUMA 443int acpi_map_pxm_to_node(int pxm); 444int acpi_get_node(acpi_handle handle); 445 446/** 447 * pxm_to_online_node - Map proximity ID to online node 448 * @pxm: ACPI proximity ID 449 * 450 * This is similar to pxm_to_node(), but always returns an online 451 * node. When the mapped node from a given proximity ID is offline, it 452 * looks up the node distance table and returns the nearest online node. 453 * 454 * ACPI device drivers, which are called after the NUMA initialization has 455 * completed in the kernel, can call this interface to obtain their device 456 * NUMA topology from ACPI tables. Such drivers do not have to deal with 457 * offline nodes. A node may be offline when SRAT memory entry does not exist, 458 * or NUMA is disabled, ex. "numa=off" on x86. 459 */ 460static inline int pxm_to_online_node(int pxm) 461{ 462 int node = pxm_to_node(pxm); 463 464 return numa_map_to_online_node(node); 465} 466#else 467static inline int pxm_to_online_node(int pxm) 468{ 469 return 0; 470} 471static inline int acpi_map_pxm_to_node(int pxm) 472{ 473 return 0; 474} 475static inline int acpi_get_node(acpi_handle handle) 476{ 477 return 0; 478} 479#endif 480extern int pnpacpi_disabled; 481 482#define PXM_INVAL (-1) 483 484bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 485bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 486bool acpi_dev_resource_address_space(struct acpi_resource *ares, 487 struct resource_win *win); 488bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 489 struct resource_win *win); 490unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 491unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 492bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 493 struct resource *res); 494 495void acpi_dev_free_resource_list(struct list_head *list); 496int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 497 int (*preproc)(struct acpi_resource *, void *), 498 void *preproc_data); 499int acpi_dev_get_dma_resources(struct acpi_device *adev, 500 struct list_head *list); 501int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 502int acpi_dev_filter_resource_type(struct acpi_resource *ares, 503 unsigned long types); 504 505static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 506 void *arg) 507{ 508 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 509} 510 511struct acpi_device *acpi_resource_consumer(struct resource *res); 512 513int acpi_check_resource_conflict(const struct resource *res); 514 515int acpi_check_region(resource_size_t start, resource_size_t n, 516 const char *name); 517 518int acpi_resources_are_enforced(void); 519 520#ifdef CONFIG_HIBERNATION 521extern int acpi_check_s4_hw_signature; 522#endif 523 524#ifdef CONFIG_PM_SLEEP 525void __init acpi_old_suspend_ordering(void); 526void __init acpi_nvs_nosave(void); 527void __init acpi_nvs_nosave_s3(void); 528void __init acpi_sleep_no_blacklist(void); 529#endif /* CONFIG_PM_SLEEP */ 530 531int acpi_register_wakeup_handler( 532 int wake_irq, bool (*wakeup)(void *context), void *context); 533void acpi_unregister_wakeup_handler( 534 bool (*wakeup)(void *context), void *context); 535 536struct acpi_osc_context { 537 char *uuid_str; /* UUID string */ 538 int rev; 539 struct acpi_buffer cap; /* list of DWORD capabilities */ 540 struct acpi_buffer ret; /* free by caller if success */ 541}; 542 543acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 544 545/* Number of _OSC capability DWORDS depends on bridge type */ 546#define OSC_PCI_CAPABILITY_DWORDS 3 547#define OSC_CXL_CAPABILITY_DWORDS 5 548 549/* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 550#define OSC_QUERY_DWORD 0 /* DWORD 1 */ 551#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 552#define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 553#define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 554#define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 555 556/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 557#define OSC_QUERY_ENABLE 0x00000001 /* input */ 558#define OSC_REQUEST_ERROR 0x00000002 /* return */ 559#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 560#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 561#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 562 563/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 564#define OSC_SB_PAD_SUPPORT 0x00000001 565#define OSC_SB_PPC_OST_SUPPORT 0x00000002 566#define OSC_SB_PR3_SUPPORT 0x00000004 567#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 568#define OSC_SB_APEI_SUPPORT 0x00000010 569#define OSC_SB_CPC_SUPPORT 0x00000020 570#define OSC_SB_CPCV2_SUPPORT 0x00000040 571#define OSC_SB_PCLPI_SUPPORT 0x00000080 572#define OSC_SB_OSLPI_SUPPORT 0x00000100 573#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 574#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 575#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 576#define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 577#define OSC_SB_PRM_SUPPORT 0x00200000 578#define OSC_SB_FFH_OPR_SUPPORT 0x00400000 579 580extern bool osc_sb_apei_support_acked; 581extern bool osc_pc_lpi_support_confirmed; 582extern bool osc_sb_native_usb4_support_confirmed; 583extern bool osc_sb_cppc2_support_acked; 584extern bool osc_cpc_flexible_adr_space_confirmed; 585 586/* USB4 Capabilities */ 587#define OSC_USB_USB3_TUNNELING 0x00000001 588#define OSC_USB_DP_TUNNELING 0x00000002 589#define OSC_USB_PCIE_TUNNELING 0x00000004 590#define OSC_USB_XDOMAIN 0x00000008 591 592extern u32 osc_sb_native_usb4_control; 593 594/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 595#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 596#define OSC_PCI_ASPM_SUPPORT 0x00000002 597#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 598#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 599#define OSC_PCI_MSI_SUPPORT 0x00000010 600#define OSC_PCI_EDR_SUPPORT 0x00000080 601#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 602 603/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 604#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 605#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 606#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 607#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 608#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 609#define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 610#define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 611 612/* CXL _OSC: Capabilities DWORD 4: Support Field */ 613#define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 614#define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 615#define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 616#define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 617 618/* CXL _OSC: Capabilities DWORD 5: Control Field */ 619#define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 620 621static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 622{ 623 u32 *ret = context->ret.pointer; 624 625 return ret[OSC_CONTROL_DWORD]; 626} 627 628static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 629{ 630 u32 *ret = context->ret.pointer; 631 632 return ret[OSC_EXT_CONTROL_DWORD]; 633} 634 635#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 636#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 637#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 638#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 639#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 640#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 641#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 642#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 643#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 644#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 645 646/* Enable _OST when all relevant hotplug operations are enabled */ 647#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 648 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 649 defined(CONFIG_ACPI_CONTAINER) 650#define ACPI_HOTPLUG_OST 651#endif 652 653/* _OST Source Event Code (OSPM Action) */ 654#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 655#define ACPI_OST_EC_OSPM_EJECT 0x103 656#define ACPI_OST_EC_OSPM_INSERTION 0x200 657 658/* _OST General Processing Status Code */ 659#define ACPI_OST_SC_SUCCESS 0x0 660#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 661#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 662 663/* _OST OS Shutdown Processing (0x100) Status Code */ 664#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 665#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 666#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 667#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 668 669/* _OST Ejection Request (0x3, 0x103) Status Code */ 670#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 671#define ACPI_OST_SC_DEVICE_IN_USE 0x81 672#define ACPI_OST_SC_DEVICE_BUSY 0x82 673#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 674#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 675 676/* _OST Insertion Request (0x200) Status Code */ 677#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 678#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 679#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 680 681enum acpi_predicate { 682 all_versions, 683 less_than_or_equal, 684 equal, 685 greater_than_or_equal, 686}; 687 688/* Table must be terminted by a NULL entry */ 689struct acpi_platform_list { 690 char oem_id[ACPI_OEM_ID_SIZE+1]; 691 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 692 u32 oem_revision; 693 char *table; 694 enum acpi_predicate pred; 695 char *reason; 696 u32 data; 697}; 698int acpi_match_platform_list(const struct acpi_platform_list *plat); 699 700extern void acpi_early_init(void); 701extern void acpi_subsystem_init(void); 702 703extern int acpi_nvs_register(__u64 start, __u64 size); 704 705extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 706 void *data); 707 708const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, 709 const struct acpi_device *adev); 710 711const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 712 const struct device *dev); 713 714const void *acpi_device_get_match_data(const struct device *dev); 715extern bool acpi_driver_match_device(struct device *dev, 716 const struct device_driver *drv); 717int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *); 718int acpi_device_modalias(struct device *, char *, int); 719 720struct platform_device *acpi_create_platform_device(struct acpi_device *, 721 const struct property_entry *); 722#define ACPI_PTR(_ptr) (_ptr) 723 724static inline void acpi_device_set_enumerated(struct acpi_device *adev) 725{ 726 adev->flags.visited = true; 727} 728 729static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 730{ 731 adev->flags.visited = false; 732} 733 734enum acpi_reconfig_event { 735 ACPI_RECONFIG_DEVICE_ADD = 0, 736 ACPI_RECONFIG_DEVICE_REMOVE, 737}; 738 739int acpi_reconfig_notifier_register(struct notifier_block *nb); 740int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 741 742#ifdef CONFIG_ACPI_GTDT 743int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 744int acpi_gtdt_map_ppi(int type); 745bool acpi_gtdt_c3stop(int type); 746int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 747#endif 748 749#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 750static inline void acpi_arch_set_root_pointer(u64 addr) 751{ 752} 753#endif 754 755#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 756static inline u64 acpi_arch_get_root_pointer(void) 757{ 758 return 0; 759} 760#endif 761 762int acpi_get_local_address(acpi_handle handle, u32 *addr); 763const char *acpi_get_subsystem_id(acpi_handle handle); 764 765#else /* !CONFIG_ACPI */ 766 767#define acpi_disabled 1 768 769#define ACPI_COMPANION(dev) (NULL) 770#define ACPI_COMPANION_SET(dev, adev) do { } while (0) 771#define ACPI_HANDLE(dev) (NULL) 772#define ACPI_HANDLE_FWNODE(fwnode) (NULL) 773 774#include <acpi/acpi_numa.h> 775 776struct fwnode_handle; 777 778static inline bool acpi_dev_found(const char *hid) 779{ 780 return false; 781} 782 783static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 784{ 785 return false; 786} 787 788struct acpi_device; 789 790static inline bool 791acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 792{ 793 return false; 794} 795 796static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 797{ 798 return -ENODEV; 799} 800 801static inline struct acpi_device * 802acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 803{ 804 return NULL; 805} 806 807static inline bool acpi_reduced_hardware(void) 808{ 809 return false; 810} 811 812static inline void acpi_dev_put(struct acpi_device *adev) {} 813 814static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 815{ 816 return false; 817} 818 819static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 820{ 821 return false; 822} 823 824static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 825{ 826 return NULL; 827} 828 829static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 830{ 831 return false; 832} 833 834static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 835{ 836 return NULL; 837} 838 839static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 840 const char *name) 841{ 842 return false; 843} 844 845static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 846{ 847 return NULL; 848} 849 850static inline bool has_acpi_companion(struct device *dev) 851{ 852 return false; 853} 854 855static inline void acpi_preset_companion(struct device *dev, 856 struct acpi_device *parent, u64 addr) 857{ 858} 859 860static inline const char *acpi_dev_name(struct acpi_device *adev) 861{ 862 return NULL; 863} 864 865static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 866{ 867 return NULL; 868} 869 870static inline void acpi_early_init(void) { } 871static inline void acpi_subsystem_init(void) { } 872 873static inline int early_acpi_boot_init(void) 874{ 875 return 0; 876} 877static inline int acpi_boot_init(void) 878{ 879 return 0; 880} 881 882static inline void acpi_boot_table_prepare(void) 883{ 884} 885 886static inline void acpi_boot_table_init(void) 887{ 888} 889 890static inline int acpi_mps_check(void) 891{ 892 return 0; 893} 894 895static inline int acpi_check_resource_conflict(struct resource *res) 896{ 897 return 0; 898} 899 900static inline int acpi_check_region(resource_size_t start, resource_size_t n, 901 const char *name) 902{ 903 return 0; 904} 905 906struct acpi_table_header; 907static inline int acpi_table_parse(char *id, 908 int (*handler)(struct acpi_table_header *)) 909{ 910 return -ENODEV; 911} 912 913static inline int acpi_nvs_register(__u64 start, __u64 size) 914{ 915 return 0; 916} 917 918static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 919 void *data) 920{ 921 return 0; 922} 923 924struct acpi_device_id; 925 926static inline const struct acpi_device_id *acpi_match_acpi_device( 927 const struct acpi_device_id *ids, const struct acpi_device *adev) 928{ 929 return NULL; 930} 931 932static inline const struct acpi_device_id *acpi_match_device( 933 const struct acpi_device_id *ids, const struct device *dev) 934{ 935 return NULL; 936} 937 938static inline const void *acpi_device_get_match_data(const struct device *dev) 939{ 940 return NULL; 941} 942 943static inline bool acpi_driver_match_device(struct device *dev, 944 const struct device_driver *drv) 945{ 946 return false; 947} 948 949static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 950 u64 rev, u64 funcs) 951{ 952 return false; 953} 954 955static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 956 const guid_t *guid, 957 u64 rev, u64 func, 958 union acpi_object *argv4) 959{ 960 return NULL; 961} 962 963static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 964 const guid_t *guid, 965 u64 rev, u64 func, 966 union acpi_object *argv4, 967 acpi_object_type type) 968{ 969 return NULL; 970} 971 972static inline int acpi_device_uevent_modalias(const struct device *dev, 973 struct kobj_uevent_env *env) 974{ 975 return -ENODEV; 976} 977 978static inline int acpi_device_modalias(struct device *dev, 979 char *buf, int size) 980{ 981 return -ENODEV; 982} 983 984static inline struct platform_device * 985acpi_create_platform_device(struct acpi_device *adev, 986 const struct property_entry *properties) 987{ 988 return NULL; 989} 990 991static inline bool acpi_dma_supported(const struct acpi_device *adev) 992{ 993 return false; 994} 995 996static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 997{ 998 return DEV_DMA_NOT_SUPPORTED; 999} 1000 1001static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 1002{ 1003 return -ENODEV; 1004} 1005 1006static inline int acpi_dma_configure(struct device *dev, 1007 enum dev_dma_attr attr) 1008{ 1009 return 0; 1010} 1011 1012static inline int acpi_dma_configure_id(struct device *dev, 1013 enum dev_dma_attr attr, 1014 const u32 *input_id) 1015{ 1016 return 0; 1017} 1018 1019#define ACPI_PTR(_ptr) (NULL) 1020 1021static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1022{ 1023} 1024 1025static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1026{ 1027} 1028 1029static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1030{ 1031 return -EINVAL; 1032} 1033 1034static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1035{ 1036 return -EINVAL; 1037} 1038 1039static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1040{ 1041 return NULL; 1042} 1043 1044static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1045{ 1046 return -ENODEV; 1047} 1048 1049static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1050{ 1051 return ERR_PTR(-ENODEV); 1052} 1053 1054static inline int acpi_register_wakeup_handler(int wake_irq, 1055 bool (*wakeup)(void *context), void *context) 1056{ 1057 return -ENXIO; 1058} 1059 1060static inline void acpi_unregister_wakeup_handler( 1061 bool (*wakeup)(void *context), void *context) { } 1062 1063struct acpi_osc_context; 1064static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1065{ 1066 return 0; 1067} 1068 1069static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1070{ 1071 return 0; 1072} 1073 1074static inline bool acpi_sleep_state_supported(u8 sleep_state) 1075{ 1076 return false; 1077} 1078 1079#endif /* !CONFIG_ACPI */ 1080 1081extern void arch_post_acpi_subsys_init(void); 1082 1083#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1084int acpi_ioapic_add(acpi_handle root); 1085#else 1086static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1087#endif 1088 1089#ifdef CONFIG_ACPI 1090void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1091 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1092 1093acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1094 u32 pm1a_control, u32 pm1b_control); 1095 1096void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1097 u32 val_a, u32 val_b)); 1098 1099acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1100 u32 val_a, u32 val_b); 1101#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86) 1102struct acpi_s2idle_dev_ops { 1103 struct list_head list_node; 1104 void (*prepare)(void); 1105 void (*check)(void); 1106 void (*restore)(void); 1107}; 1108int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1109void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1110int acpi_get_lps0_constraint(struct acpi_device *adev); 1111#else /* CONFIG_SUSPEND && CONFIG_X86 */ 1112static inline int acpi_get_lps0_constraint(struct device *dev) 1113{ 1114 return ACPI_STATE_UNKNOWN; 1115} 1116#endif /* CONFIG_SUSPEND && CONFIG_X86 */ 1117#ifndef CONFIG_IA64 1118void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1119#else 1120static inline void arch_reserve_mem_area(acpi_physical_address addr, 1121 size_t size) 1122{ 1123} 1124#endif /* CONFIG_X86 */ 1125#else 1126#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1127#endif 1128 1129#if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1130int acpi_dev_suspend(struct device *dev, bool wakeup); 1131int acpi_dev_resume(struct device *dev); 1132int acpi_subsys_runtime_suspend(struct device *dev); 1133int acpi_subsys_runtime_resume(struct device *dev); 1134int acpi_dev_pm_attach(struct device *dev, bool power_on); 1135bool acpi_storage_d3(struct device *dev); 1136bool acpi_dev_state_d0(struct device *dev); 1137#else 1138static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1139static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1140static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1141{ 1142 return 0; 1143} 1144static inline bool acpi_storage_d3(struct device *dev) 1145{ 1146 return false; 1147} 1148static inline bool acpi_dev_state_d0(struct device *dev) 1149{ 1150 return true; 1151} 1152#endif 1153 1154#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1155int acpi_subsys_prepare(struct device *dev); 1156void acpi_subsys_complete(struct device *dev); 1157int acpi_subsys_suspend_late(struct device *dev); 1158int acpi_subsys_suspend_noirq(struct device *dev); 1159int acpi_subsys_suspend(struct device *dev); 1160int acpi_subsys_freeze(struct device *dev); 1161int acpi_subsys_poweroff(struct device *dev); 1162void acpi_ec_mark_gpe_for_wake(void); 1163void acpi_ec_set_gpe_wake_mask(u8 action); 1164int acpi_subsys_restore_early(struct device *dev); 1165#else 1166static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1167static inline void acpi_subsys_complete(struct device *dev) {} 1168static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1169static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1170static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1171static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1172static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1173static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1174static inline void acpi_ec_mark_gpe_for_wake(void) {} 1175static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1176#endif 1177 1178#ifdef CONFIG_ACPI 1179__printf(3, 4) 1180void acpi_handle_printk(const char *level, acpi_handle handle, 1181 const char *fmt, ...); 1182void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1183 acpi_status status); 1184#else /* !CONFIG_ACPI */ 1185static inline __printf(3, 4) void 1186acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1187static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1188 const char *name, 1189 acpi_status status) {} 1190#endif /* !CONFIG_ACPI */ 1191 1192#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1193__printf(3, 4) 1194void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1195#endif 1196 1197/* 1198 * acpi_handle_<level>: Print message with ACPI prefix and object path 1199 * 1200 * These interfaces acquire the global namespace mutex to obtain an object 1201 * path. In interrupt context, it shows the object path as <n/a>. 1202 */ 1203#define acpi_handle_emerg(handle, fmt, ...) \ 1204 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1205#define acpi_handle_alert(handle, fmt, ...) \ 1206 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1207#define acpi_handle_crit(handle, fmt, ...) \ 1208 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1209#define acpi_handle_err(handle, fmt, ...) \ 1210 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1211#define acpi_handle_warn(handle, fmt, ...) \ 1212 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1213#define acpi_handle_notice(handle, fmt, ...) \ 1214 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1215#define acpi_handle_info(handle, fmt, ...) \ 1216 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1217 1218#if defined(DEBUG) 1219#define acpi_handle_debug(handle, fmt, ...) \ 1220 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1221#else 1222#if defined(CONFIG_DYNAMIC_DEBUG) 1223#define acpi_handle_debug(handle, fmt, ...) \ 1224 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1225 handle, pr_fmt(fmt), ##__VA_ARGS__) 1226#else 1227#define acpi_handle_debug(handle, fmt, ...) \ 1228({ \ 1229 if (0) \ 1230 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1231 0; \ 1232}) 1233#endif 1234#endif 1235 1236#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1237bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1238 struct acpi_resource_gpio **agpio); 1239bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1240 struct acpi_resource_gpio **agpio); 1241int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1242 bool *wake_capable); 1243#else 1244static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1245 struct acpi_resource_gpio **agpio) 1246{ 1247 return false; 1248} 1249static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1250 struct acpi_resource_gpio **agpio) 1251{ 1252 return false; 1253} 1254static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1255 int index, bool *wake_capable) 1256{ 1257 return -ENXIO; 1258} 1259#endif 1260 1261static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1262 bool *wake_capable) 1263{ 1264 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1265} 1266 1267static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1268 int index) 1269{ 1270 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1271} 1272 1273static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1274{ 1275 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1276} 1277 1278/* Device properties */ 1279 1280#ifdef CONFIG_ACPI 1281int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1282 acpi_object_type type, const union acpi_object **obj); 1283int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1284 const char *name, size_t index, size_t num_args, 1285 struct fwnode_reference_args *args); 1286 1287static inline int acpi_node_get_property_reference( 1288 const struct fwnode_handle *fwnode, 1289 const char *name, size_t index, 1290 struct fwnode_reference_args *args) 1291{ 1292 return __acpi_node_get_property_reference(fwnode, name, index, 1293 NR_FWNODE_REFERENCE_ARGS, args); 1294} 1295 1296static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1297{ 1298 return !list_empty(&adev->data.properties); 1299} 1300 1301struct acpi_device_properties * 1302acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1303 union acpi_object *properties); 1304 1305int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1306 void **valptr); 1307 1308struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1309 struct fwnode_handle *child); 1310 1311struct acpi_probe_entry; 1312typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1313 struct acpi_probe_entry *); 1314 1315#define ACPI_TABLE_ID_LEN 5 1316 1317/** 1318 * struct acpi_probe_entry - boot-time probing entry 1319 * @id: ACPI table name 1320 * @type: Optional subtable type to match 1321 * (if @id contains subtables) 1322 * @subtable_valid: Optional callback to check the validity of 1323 * the subtable 1324 * @probe_table: Callback to the driver being probed when table 1325 * match is successful 1326 * @probe_subtbl: Callback to the driver being probed when table and 1327 * subtable match (and optional callback is successful) 1328 * @driver_data: Sideband data provided back to the driver 1329 */ 1330struct acpi_probe_entry { 1331 __u8 id[ACPI_TABLE_ID_LEN]; 1332 __u8 type; 1333 acpi_probe_entry_validate_subtbl subtable_valid; 1334 union { 1335 acpi_tbl_table_handler probe_table; 1336 acpi_tbl_entry_handler probe_subtbl; 1337 }; 1338 kernel_ulong_t driver_data; 1339}; 1340 1341#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1342 valid, data, fn) \ 1343 static const struct acpi_probe_entry __acpi_probe_##name \ 1344 __used __section("__" #table "_acpi_probe_table") = { \ 1345 .id = table_id, \ 1346 .type = subtable, \ 1347 .subtable_valid = valid, \ 1348 .probe_table = fn, \ 1349 .driver_data = data, \ 1350 } 1351 1352#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1353 subtable, valid, data, fn) \ 1354 static const struct acpi_probe_entry __acpi_probe_##name \ 1355 __used __section("__" #table "_acpi_probe_table") = { \ 1356 .id = table_id, \ 1357 .type = subtable, \ 1358 .subtable_valid = valid, \ 1359 .probe_subtbl = fn, \ 1360 .driver_data = data, \ 1361 } 1362 1363#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1364#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1365 1366int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1367 1368#define acpi_probe_device_table(t) \ 1369 ({ \ 1370 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1371 ACPI_PROBE_TABLE_END(t); \ 1372 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1373 (&ACPI_PROBE_TABLE_END(t) - \ 1374 &ACPI_PROBE_TABLE(t))); \ 1375 }) 1376#else 1377static inline int acpi_dev_get_property(struct acpi_device *adev, 1378 const char *name, acpi_object_type type, 1379 const union acpi_object **obj) 1380{ 1381 return -ENXIO; 1382} 1383 1384static inline int 1385__acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1386 const char *name, size_t index, size_t num_args, 1387 struct fwnode_reference_args *args) 1388{ 1389 return -ENXIO; 1390} 1391 1392static inline int 1393acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1394 const char *name, size_t index, 1395 struct fwnode_reference_args *args) 1396{ 1397 return -ENXIO; 1398} 1399 1400static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1401 const char *propname, 1402 void **valptr) 1403{ 1404 return -ENXIO; 1405} 1406 1407static inline struct fwnode_handle * 1408acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1409 struct fwnode_handle *child) 1410{ 1411 return NULL; 1412} 1413 1414static inline struct fwnode_handle * 1415acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1416 struct fwnode_handle *prev) 1417{ 1418 return ERR_PTR(-ENXIO); 1419} 1420 1421static inline int 1422acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1423 struct fwnode_handle **remote, 1424 struct fwnode_handle **port, 1425 struct fwnode_handle **endpoint) 1426{ 1427 return -ENXIO; 1428} 1429 1430#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1431 static const void * __acpi_table_##name[] \ 1432 __attribute__((unused)) \ 1433 = { (void *) table_id, \ 1434 (void *) subtable, \ 1435 (void *) valid, \ 1436 (void *) fn, \ 1437 (void *) data } 1438 1439#define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1440#endif 1441 1442#ifdef CONFIG_ACPI_TABLE_UPGRADE 1443void acpi_table_upgrade(void); 1444#else 1445static inline void acpi_table_upgrade(void) { } 1446#endif 1447 1448#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1449extern bool acpi_has_watchdog(void); 1450#else 1451static inline bool acpi_has_watchdog(void) { return false; } 1452#endif 1453 1454#ifdef CONFIG_ACPI_SPCR_TABLE 1455extern bool qdf2400_e44_present; 1456int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1457#else 1458static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1459{ 1460 return 0; 1461} 1462#endif 1463 1464#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1465int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1466#else 1467static inline 1468int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1469{ 1470 return -EINVAL; 1471} 1472#endif 1473 1474#ifdef CONFIG_ACPI_LPIT 1475int lpit_read_residency_count_address(u64 *address); 1476#else 1477static inline int lpit_read_residency_count_address(u64 *address) 1478{ 1479 return -EINVAL; 1480} 1481#endif 1482 1483#ifdef CONFIG_ACPI_PROCESSOR_IDLE 1484#ifndef arch_get_idle_state_flags 1485static inline unsigned int arch_get_idle_state_flags(u32 arch_flags) 1486{ 1487 return 0; 1488} 1489#endif 1490#endif /* CONFIG_ACPI_PROCESSOR_IDLE */ 1491 1492#ifdef CONFIG_ACPI_PPTT 1493int acpi_pptt_cpu_is_thread(unsigned int cpu); 1494int find_acpi_cpu_topology(unsigned int cpu, int level); 1495int find_acpi_cpu_topology_cluster(unsigned int cpu); 1496int find_acpi_cpu_topology_package(unsigned int cpu); 1497int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1498#else 1499static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1500{ 1501 return -EINVAL; 1502} 1503static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1504{ 1505 return -EINVAL; 1506} 1507static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1508{ 1509 return -EINVAL; 1510} 1511static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1512{ 1513 return -EINVAL; 1514} 1515static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1516{ 1517 return -EINVAL; 1518} 1519#endif 1520 1521#ifdef CONFIG_ARM64 1522void acpi_arm_init(void); 1523#else 1524static inline void acpi_arm_init(void) { } 1525#endif 1526 1527#ifdef CONFIG_ACPI_PCC 1528void acpi_init_pcc(void); 1529#else 1530static inline void acpi_init_pcc(void) { } 1531#endif 1532 1533#ifdef CONFIG_ACPI_FFH 1534void acpi_init_ffh(void); 1535extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1536 void **region_ctxt); 1537extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1538 void *region_context); 1539#else 1540static inline void acpi_init_ffh(void) { } 1541#endif 1542 1543#ifdef CONFIG_ACPI 1544extern void acpi_device_notify(struct device *dev); 1545extern void acpi_device_notify_remove(struct device *dev); 1546#else 1547static inline void acpi_device_notify(struct device *dev) { } 1548static inline void acpi_device_notify_remove(struct device *dev) { } 1549#endif 1550 1551#endif /*_LINUX_ACPI_H*/