1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 6 */ 7 8 #ifndef _LINUX_ACPI_H 9 #define _LINUX_ACPI_H 10 11 #include <linux/errno.h> 12 #include <linux/ioport.h> /* for struct resource */ 13 #include <linux/irqdomain.h> 14 #include <linux/resource_ext.h> 15 #include <linux/device.h> 16 #include <linux/property.h> 17 #include <linux/uuid.h> 18 19 #ifndef _LINUX 20 #define _LINUX 21 #endif 22 #include <acpi/acpi.h> 23 24 #ifdef CONFIG_ACPI 25 26 #include <linux/list.h> 27 #include <linux/mod_devicetable.h> 28 #include <linux/dynamic_debug.h> 29 #include <linux/module.h> 30 #include <linux/mutex.h> 31 32 #include <acpi/acpi_bus.h> 33 #include <acpi/acpi_drivers.h> 34 #include <acpi/acpi_numa.h> 35 #include <acpi/acpi_io.h> 36 #include <asm/acpi.h> 37 38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 39 { 40 return adev ? adev->handle : NULL; 41 } 42 43 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 44 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 45 acpi_fwnode_handle(adev) : NULL) 46 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 47 #define ACPI_HANDLE_FWNODE(fwnode) \ 48 acpi_device_handle(to_acpi_device_node(fwnode)) 49 50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 51 { 52 struct fwnode_handle *fwnode; 53 54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 55 if (!fwnode) 56 return NULL; 57 58 fwnode_init(fwnode, &acpi_static_fwnode_ops); 59 60 return fwnode; 61 } 62 63 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 64 { 65 if (WARN_ON(!is_acpi_static_node(fwnode))) 66 return; 67 68 kfree(fwnode); 69 } 70 71 /** 72 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 73 * the PCI-defined class-code information 74 * 75 * @_cls : the class, subclass, prog-if triple for this device 76 * @_msk : the class mask for this device 77 * 78 * This macro is used to create a struct acpi_device_id that matches a 79 * specific PCI class. The .id and .driver_data fields will be left 80 * initialized with the default value. 81 */ 82 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 83 84 static inline bool has_acpi_companion(struct device *dev) 85 { 86 return is_acpi_device_node(dev->fwnode); 87 } 88 89 static inline void acpi_preset_companion(struct device *dev, 90 struct acpi_device *parent, u64 addr) 91 { 92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 93 } 94 95 static inline const char *acpi_dev_name(struct acpi_device *adev) 96 { 97 return dev_name(&adev->dev); 98 } 99 100 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 101 102 enum acpi_irq_model_id { 103 ACPI_IRQ_MODEL_PIC = 0, 104 ACPI_IRQ_MODEL_IOAPIC, 105 ACPI_IRQ_MODEL_IOSAPIC, 106 ACPI_IRQ_MODEL_PLATFORM, 107 ACPI_IRQ_MODEL_GIC, 108 ACPI_IRQ_MODEL_LPIC, 109 ACPI_IRQ_MODEL_COUNT 110 }; 111 112 extern enum acpi_irq_model_id acpi_irq_model; 113 114 enum acpi_interrupt_id { 115 ACPI_INTERRUPT_PMI = 1, 116 ACPI_INTERRUPT_INIT, 117 ACPI_INTERRUPT_CPEI, 118 ACPI_INTERRUPT_COUNT 119 }; 120 121 #define ACPI_SPACE_MEM 0 122 123 enum acpi_address_range_id { 124 ACPI_ADDRESS_RANGE_MEMORY = 1, 125 ACPI_ADDRESS_RANGE_RESERVED = 2, 126 ACPI_ADDRESS_RANGE_ACPI = 3, 127 ACPI_ADDRESS_RANGE_NVS = 4, 128 ACPI_ADDRESS_RANGE_COUNT 129 }; 130 131 132 /* Table Handlers */ 133 union acpi_subtable_headers { 134 struct acpi_subtable_header common; 135 struct acpi_hmat_structure hmat; 136 struct acpi_prmt_module_header prmt; 137 struct acpi_cedt_header cedt; 138 }; 139 140 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 141 142 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 143 const unsigned long end); 144 145 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 146 void *arg, const unsigned long end); 147 148 /* Debugger support */ 149 150 struct acpi_debugger_ops { 151 int (*create_thread)(acpi_osd_exec_callback function, void *context); 152 ssize_t (*write_log)(const char *msg); 153 ssize_t (*read_cmd)(char *buffer, size_t length); 154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 155 int (*notify_command_complete)(void); 156 }; 157 158 struct acpi_debugger { 159 const struct acpi_debugger_ops *ops; 160 struct module *owner; 161 struct mutex lock; 162 }; 163 164 #ifdef CONFIG_ACPI_DEBUGGER 165 int __init acpi_debugger_init(void); 166 int acpi_register_debugger(struct module *owner, 167 const struct acpi_debugger_ops *ops); 168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 170 ssize_t acpi_debugger_write_log(const char *msg); 171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 172 int acpi_debugger_wait_command_ready(void); 173 int acpi_debugger_notify_command_complete(void); 174 #else 175 static inline int acpi_debugger_init(void) 176 { 177 return -ENODEV; 178 } 179 180 static inline int acpi_register_debugger(struct module *owner, 181 const struct acpi_debugger_ops *ops) 182 { 183 return -ENODEV; 184 } 185 186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 187 { 188 } 189 190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 191 void *context) 192 { 193 return -ENODEV; 194 } 195 196 static inline int acpi_debugger_write_log(const char *msg) 197 { 198 return -ENODEV; 199 } 200 201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 202 { 203 return -ENODEV; 204 } 205 206 static inline int acpi_debugger_wait_command_ready(void) 207 { 208 return -ENODEV; 209 } 210 211 static inline int acpi_debugger_notify_command_complete(void) 212 { 213 return -ENODEV; 214 } 215 #endif 216 217 #define BAD_MADT_ENTRY(entry, end) ( \ 218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 220 221 struct acpi_subtable_proc { 222 int id; 223 acpi_tbl_entry_handler handler; 224 acpi_tbl_entry_handler_arg handler_arg; 225 void *arg; 226 int count; 227 }; 228 229 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 230 void __acpi_unmap_table(void __iomem *map, unsigned long size); 231 int early_acpi_boot_init(void); 232 int acpi_boot_init (void); 233 void acpi_boot_table_prepare (void); 234 void acpi_boot_table_init (void); 235 int acpi_mps_check (void); 236 int acpi_numa_init (void); 237 238 int acpi_locate_initial_tables (void); 239 void acpi_reserve_initial_tables (void); 240 void acpi_table_init_complete (void); 241 int acpi_table_init (void); 242 243 #ifdef CONFIG_ACPI_TABLE_LIB 244 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 245 #define __init_or_acpilib 246 #define __initdata_or_acpilib 247 #else 248 #define EXPORT_SYMBOL_ACPI_LIB(x) 249 #define __init_or_acpilib __init 250 #define __initdata_or_acpilib __initdata 251 #endif 252 253 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 254 int __init_or_acpilib acpi_table_parse_entries(char *id, 255 unsigned long table_size, int entry_id, 256 acpi_tbl_entry_handler handler, unsigned int max_entries); 257 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 258 unsigned long table_size, struct acpi_subtable_proc *proc, 259 int proc_num, unsigned int max_entries); 260 int acpi_table_parse_madt(enum acpi_madt_type id, 261 acpi_tbl_entry_handler handler, 262 unsigned int max_entries); 263 int __init_or_acpilib 264 acpi_table_parse_cedt(enum acpi_cedt_type id, 265 acpi_tbl_entry_handler_arg handler_arg, void *arg); 266 267 int acpi_parse_mcfg (struct acpi_table_header *header); 268 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 269 270 /* the following numa functions are architecture-dependent */ 271 void acpi_numa_slit_init (struct acpi_table_slit *slit); 272 273 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 274 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 275 #else 276 static inline void 277 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 278 #endif 279 280 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 281 282 #ifdef CONFIG_ARM64 283 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 284 void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size); 285 #else 286 static inline void 287 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 288 static inline void 289 acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { } 290 #endif 291 292 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 293 294 #ifndef PHYS_CPUID_INVALID 295 typedef u32 phys_cpuid_t; 296 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 297 #endif 298 299 static inline bool invalid_logical_cpuid(u32 cpuid) 300 { 301 return (int)cpuid < 0; 302 } 303 304 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 305 { 306 return phys_id == PHYS_CPUID_INVALID; 307 } 308 309 /* Validate the processor object's proc_id */ 310 bool acpi_duplicate_processor_id(int proc_id); 311 /* Processor _CTS control */ 312 struct acpi_processor_power; 313 314 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 315 bool acpi_processor_claim_cst_control(void); 316 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 317 struct acpi_processor_power *info); 318 #else 319 static inline bool acpi_processor_claim_cst_control(void) { return false; } 320 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 321 struct acpi_processor_power *info) 322 { 323 return -ENODEV; 324 } 325 #endif 326 327 #ifdef CONFIG_ACPI_HOTPLUG_CPU 328 /* Arch dependent functions for cpu hotplug support */ 329 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 330 int *pcpu); 331 int acpi_unmap_cpu(int cpu); 332 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 333 334 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 335 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 336 #endif 337 338 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 339 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 340 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 341 void acpi_irq_stats_init(void); 342 extern u32 acpi_irq_handled; 343 extern u32 acpi_irq_not_handled; 344 extern unsigned int acpi_sci_irq; 345 extern bool acpi_no_s5; 346 #define INVALID_ACPI_IRQ ((unsigned)-1) 347 static inline bool acpi_sci_irq_valid(void) 348 { 349 return acpi_sci_irq != INVALID_ACPI_IRQ; 350 } 351 352 extern int sbf_port; 353 extern unsigned long acpi_realmode_flags; 354 355 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 356 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 357 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 358 359 void acpi_set_irq_model(enum acpi_irq_model_id model, 360 struct fwnode_handle *(*)(u32)); 361 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 362 363 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 364 unsigned int size, 365 struct fwnode_handle *fwnode, 366 const struct irq_domain_ops *ops, 367 void *host_data); 368 369 #ifdef CONFIG_X86_IO_APIC 370 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 371 #else 372 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 373 { 374 return -1; 375 } 376 #endif 377 /* 378 * This function undoes the effect of one call to acpi_register_gsi(). 379 * If this matches the last registration, any IRQ resources for gsi 380 * are freed. 381 */ 382 void acpi_unregister_gsi (u32 gsi); 383 384 struct pci_dev; 385 386 int acpi_pci_irq_enable (struct pci_dev *dev); 387 void acpi_penalize_isa_irq(int irq, int active); 388 bool acpi_isa_irq_available(int irq); 389 #ifdef CONFIG_PCI 390 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 391 #else 392 static inline void acpi_penalize_sci_irq(int irq, int trigger, 393 int polarity) 394 { 395 } 396 #endif 397 void acpi_pci_irq_disable (struct pci_dev *dev); 398 399 extern int ec_read(u8 addr, u8 *val); 400 extern int ec_write(u8 addr, u8 val); 401 extern int ec_transaction(u8 command, 402 const u8 *wdata, unsigned wdata_len, 403 u8 *rdata, unsigned rdata_len); 404 extern acpi_handle ec_get_handle(void); 405 406 extern bool acpi_is_pnp_device(struct acpi_device *); 407 408 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 409 410 typedef void (*wmi_notify_handler) (u32 value, void *context); 411 412 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 413 u32 method_id, 414 const struct acpi_buffer *in, 415 struct acpi_buffer *out); 416 extern acpi_status wmi_query_block(const char *guid, u8 instance, 417 struct acpi_buffer *out); 418 extern acpi_status wmi_set_block(const char *guid, u8 instance, 419 const struct acpi_buffer *in); 420 extern acpi_status wmi_install_notify_handler(const char *guid, 421 wmi_notify_handler handler, void *data); 422 extern acpi_status wmi_remove_notify_handler(const char *guid); 423 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 424 extern bool wmi_has_guid(const char *guid); 425 extern char *wmi_get_acpi_device_uid(const char *guid); 426 427 #endif /* CONFIG_ACPI_WMI */ 428 429 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 430 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 431 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 432 #define ACPI_VIDEO_BACKLIGHT 0x0008 433 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 434 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 435 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 436 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 437 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 438 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 439 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 440 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 441 442 extern char acpi_video_backlight_string[]; 443 extern long acpi_is_video_device(acpi_handle handle); 444 extern int acpi_blacklisted(void); 445 extern void acpi_osi_setup(char *str); 446 extern bool acpi_osi_is_win8(void); 447 448 #ifdef CONFIG_ACPI_NUMA 449 int acpi_map_pxm_to_node(int pxm); 450 int acpi_get_node(acpi_handle handle); 451 452 /** 453 * pxm_to_online_node - Map proximity ID to online node 454 * @pxm: ACPI proximity ID 455 * 456 * This is similar to pxm_to_node(), but always returns an online 457 * node. When the mapped node from a given proximity ID is offline, it 458 * looks up the node distance table and returns the nearest online node. 459 * 460 * ACPI device drivers, which are called after the NUMA initialization has 461 * completed in the kernel, can call this interface to obtain their device 462 * NUMA topology from ACPI tables. Such drivers do not have to deal with 463 * offline nodes. A node may be offline when SRAT memory entry does not exist, 464 * or NUMA is disabled, ex. "numa=off" on x86. 465 */ 466 static inline int pxm_to_online_node(int pxm) 467 { 468 int node = pxm_to_node(pxm); 469 470 return numa_map_to_online_node(node); 471 } 472 #else 473 static inline int pxm_to_online_node(int pxm) 474 { 475 return 0; 476 } 477 static inline int acpi_map_pxm_to_node(int pxm) 478 { 479 return 0; 480 } 481 static inline int acpi_get_node(acpi_handle handle) 482 { 483 return 0; 484 } 485 #endif 486 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 487 488 extern int pnpacpi_disabled; 489 490 #define PXM_INVAL (-1) 491 492 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 493 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 494 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 495 struct resource_win *win); 496 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 497 struct resource_win *win); 498 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 499 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 500 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 501 struct resource *res); 502 503 void acpi_dev_free_resource_list(struct list_head *list); 504 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 505 int (*preproc)(struct acpi_resource *, void *), 506 void *preproc_data); 507 int acpi_dev_get_dma_resources(struct acpi_device *adev, 508 struct list_head *list); 509 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 510 unsigned long types); 511 512 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 513 void *arg) 514 { 515 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 516 } 517 518 struct acpi_device *acpi_resource_consumer(struct resource *res); 519 520 int acpi_check_resource_conflict(const struct resource *res); 521 522 int acpi_check_region(resource_size_t start, resource_size_t n, 523 const char *name); 524 525 int acpi_resources_are_enforced(void); 526 527 #ifdef CONFIG_HIBERNATION 528 extern int acpi_check_s4_hw_signature; 529 #endif 530 531 #ifdef CONFIG_PM_SLEEP 532 void __init acpi_old_suspend_ordering(void); 533 void __init acpi_nvs_nosave(void); 534 void __init acpi_nvs_nosave_s3(void); 535 void __init acpi_sleep_no_blacklist(void); 536 #endif /* CONFIG_PM_SLEEP */ 537 538 int acpi_register_wakeup_handler( 539 int wake_irq, bool (*wakeup)(void *context), void *context); 540 void acpi_unregister_wakeup_handler( 541 bool (*wakeup)(void *context), void *context); 542 543 struct acpi_osc_context { 544 char *uuid_str; /* UUID string */ 545 int rev; 546 struct acpi_buffer cap; /* list of DWORD capabilities */ 547 struct acpi_buffer ret; /* free by caller if success */ 548 }; 549 550 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 551 552 /* Number of _OSC capability DWORDS depends on bridge type */ 553 #define OSC_PCI_CAPABILITY_DWORDS 3 554 #define OSC_CXL_CAPABILITY_DWORDS 5 555 556 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 557 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 558 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 559 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 560 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 561 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 562 563 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 564 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 565 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 566 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 567 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 568 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 569 570 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 571 #define OSC_SB_PAD_SUPPORT 0x00000001 572 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 573 #define OSC_SB_PR3_SUPPORT 0x00000004 574 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 575 #define OSC_SB_APEI_SUPPORT 0x00000010 576 #define OSC_SB_CPC_SUPPORT 0x00000020 577 #define OSC_SB_CPCV2_SUPPORT 0x00000040 578 #define OSC_SB_PCLPI_SUPPORT 0x00000080 579 #define OSC_SB_OSLPI_SUPPORT 0x00000100 580 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 581 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 582 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 583 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 584 #define OSC_SB_PRM_SUPPORT 0x00200000 585 586 extern bool osc_sb_apei_support_acked; 587 extern bool osc_pc_lpi_support_confirmed; 588 extern bool osc_sb_native_usb4_support_confirmed; 589 extern bool osc_sb_cppc2_support_acked; 590 extern bool osc_cpc_flexible_adr_space_confirmed; 591 592 /* USB4 Capabilities */ 593 #define OSC_USB_USB3_TUNNELING 0x00000001 594 #define OSC_USB_DP_TUNNELING 0x00000002 595 #define OSC_USB_PCIE_TUNNELING 0x00000004 596 #define OSC_USB_XDOMAIN 0x00000008 597 598 extern u32 osc_sb_native_usb4_control; 599 600 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 601 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 602 #define OSC_PCI_ASPM_SUPPORT 0x00000002 603 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 604 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 605 #define OSC_PCI_MSI_SUPPORT 0x00000010 606 #define OSC_PCI_EDR_SUPPORT 0x00000080 607 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 608 609 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 610 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 611 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 612 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 613 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 614 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 615 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 616 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 617 618 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 619 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 620 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 621 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 622 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 623 624 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 625 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 626 627 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 628 { 629 u32 *ret = context->ret.pointer; 630 631 return ret[OSC_CONTROL_DWORD]; 632 } 633 634 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 635 { 636 u32 *ret = context->ret.pointer; 637 638 return ret[OSC_EXT_CONTROL_DWORD]; 639 } 640 641 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 642 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 643 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 644 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 645 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 646 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 647 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 648 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 649 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 650 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 651 652 /* Enable _OST when all relevant hotplug operations are enabled */ 653 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 654 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 655 defined(CONFIG_ACPI_CONTAINER) 656 #define ACPI_HOTPLUG_OST 657 #endif 658 659 /* _OST Source Event Code (OSPM Action) */ 660 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 661 #define ACPI_OST_EC_OSPM_EJECT 0x103 662 #define ACPI_OST_EC_OSPM_INSERTION 0x200 663 664 /* _OST General Processing Status Code */ 665 #define ACPI_OST_SC_SUCCESS 0x0 666 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 667 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 668 669 /* _OST OS Shutdown Processing (0x100) Status Code */ 670 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 671 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 672 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 673 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 674 675 /* _OST Ejection Request (0x3, 0x103) Status Code */ 676 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 677 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 678 #define ACPI_OST_SC_DEVICE_BUSY 0x82 679 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 680 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 681 682 /* _OST Insertion Request (0x200) Status Code */ 683 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 684 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 685 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 686 687 enum acpi_predicate { 688 all_versions, 689 less_than_or_equal, 690 equal, 691 greater_than_or_equal, 692 }; 693 694 /* Table must be terminted by a NULL entry */ 695 struct acpi_platform_list { 696 char oem_id[ACPI_OEM_ID_SIZE+1]; 697 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 698 u32 oem_revision; 699 char *table; 700 enum acpi_predicate pred; 701 char *reason; 702 u32 data; 703 }; 704 int acpi_match_platform_list(const struct acpi_platform_list *plat); 705 706 extern void acpi_early_init(void); 707 extern void acpi_subsystem_init(void); 708 extern void arch_post_acpi_subsys_init(void); 709 710 extern int acpi_nvs_register(__u64 start, __u64 size); 711 712 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 713 void *data); 714 715 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 716 const struct device *dev); 717 718 const void *acpi_device_get_match_data(const struct device *dev); 719 extern bool acpi_driver_match_device(struct device *dev, 720 const struct device_driver *drv); 721 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 722 int acpi_device_modalias(struct device *, char *, int); 723 724 struct platform_device *acpi_create_platform_device(struct acpi_device *, 725 const struct property_entry *); 726 #define ACPI_PTR(_ptr) (_ptr) 727 728 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 729 { 730 adev->flags.visited = true; 731 } 732 733 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 734 { 735 adev->flags.visited = false; 736 } 737 738 enum acpi_reconfig_event { 739 ACPI_RECONFIG_DEVICE_ADD = 0, 740 ACPI_RECONFIG_DEVICE_REMOVE, 741 }; 742 743 int acpi_reconfig_notifier_register(struct notifier_block *nb); 744 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 745 746 #ifdef CONFIG_ACPI_GTDT 747 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 748 int acpi_gtdt_map_ppi(int type); 749 bool acpi_gtdt_c3stop(int type); 750 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 751 #endif 752 753 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 754 static inline void acpi_arch_set_root_pointer(u64 addr) 755 { 756 } 757 #endif 758 759 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 760 static inline u64 acpi_arch_get_root_pointer(void) 761 { 762 return 0; 763 } 764 #endif 765 766 int acpi_get_local_address(acpi_handle handle, u32 *addr); 767 const char *acpi_get_subsystem_id(acpi_handle handle); 768 769 #else /* !CONFIG_ACPI */ 770 771 #define acpi_disabled 1 772 773 #define ACPI_COMPANION(dev) (NULL) 774 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 775 #define ACPI_HANDLE(dev) (NULL) 776 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 777 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 778 779 #include <acpi/acpi_numa.h> 780 781 struct fwnode_handle; 782 783 static inline bool acpi_dev_found(const char *hid) 784 { 785 return false; 786 } 787 788 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 789 { 790 return false; 791 } 792 793 struct acpi_device; 794 795 static inline bool 796 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 797 { 798 return false; 799 } 800 801 static inline struct acpi_device * 802 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 803 { 804 return NULL; 805 } 806 807 static inline bool acpi_reduced_hardware(void) 808 { 809 return false; 810 } 811 812 static inline void acpi_dev_put(struct acpi_device *adev) {} 813 814 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 815 { 816 return false; 817 } 818 819 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 820 { 821 return false; 822 } 823 824 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 825 { 826 return NULL; 827 } 828 829 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 830 { 831 return false; 832 } 833 834 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 835 { 836 return NULL; 837 } 838 839 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 840 const char *name) 841 { 842 return false; 843 } 844 845 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 846 { 847 return NULL; 848 } 849 850 static inline bool has_acpi_companion(struct device *dev) 851 { 852 return false; 853 } 854 855 static inline void acpi_preset_companion(struct device *dev, 856 struct acpi_device *parent, u64 addr) 857 { 858 } 859 860 static inline const char *acpi_dev_name(struct acpi_device *adev) 861 { 862 return NULL; 863 } 864 865 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 866 { 867 return NULL; 868 } 869 870 static inline void acpi_early_init(void) { } 871 static inline void acpi_subsystem_init(void) { } 872 873 static inline int early_acpi_boot_init(void) 874 { 875 return 0; 876 } 877 static inline int acpi_boot_init(void) 878 { 879 return 0; 880 } 881 882 static inline void acpi_boot_table_prepare(void) 883 { 884 } 885 886 static inline void acpi_boot_table_init(void) 887 { 888 } 889 890 static inline int acpi_mps_check(void) 891 { 892 return 0; 893 } 894 895 static inline int acpi_check_resource_conflict(struct resource *res) 896 { 897 return 0; 898 } 899 900 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 901 const char *name) 902 { 903 return 0; 904 } 905 906 struct acpi_table_header; 907 static inline int acpi_table_parse(char *id, 908 int (*handler)(struct acpi_table_header *)) 909 { 910 return -ENODEV; 911 } 912 913 static inline int acpi_nvs_register(__u64 start, __u64 size) 914 { 915 return 0; 916 } 917 918 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 919 void *data) 920 { 921 return 0; 922 } 923 924 struct acpi_device_id; 925 926 static inline const struct acpi_device_id *acpi_match_device( 927 const struct acpi_device_id *ids, const struct device *dev) 928 { 929 return NULL; 930 } 931 932 static inline const void *acpi_device_get_match_data(const struct device *dev) 933 { 934 return NULL; 935 } 936 937 static inline bool acpi_driver_match_device(struct device *dev, 938 const struct device_driver *drv) 939 { 940 return false; 941 } 942 943 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 944 const guid_t *guid, 945 u64 rev, u64 func, 946 union acpi_object *argv4) 947 { 948 return NULL; 949 } 950 951 static inline int acpi_device_uevent_modalias(struct device *dev, 952 struct kobj_uevent_env *env) 953 { 954 return -ENODEV; 955 } 956 957 static inline int acpi_device_modalias(struct device *dev, 958 char *buf, int size) 959 { 960 return -ENODEV; 961 } 962 963 static inline struct platform_device * 964 acpi_create_platform_device(struct acpi_device *adev, 965 const struct property_entry *properties) 966 { 967 return NULL; 968 } 969 970 static inline bool acpi_dma_supported(const struct acpi_device *adev) 971 { 972 return false; 973 } 974 975 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 976 { 977 return DEV_DMA_NOT_SUPPORTED; 978 } 979 980 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 981 u64 *offset, u64 *size) 982 { 983 return -ENODEV; 984 } 985 986 static inline int acpi_dma_configure(struct device *dev, 987 enum dev_dma_attr attr) 988 { 989 return 0; 990 } 991 992 static inline int acpi_dma_configure_id(struct device *dev, 993 enum dev_dma_attr attr, 994 const u32 *input_id) 995 { 996 return 0; 997 } 998 999 #define ACPI_PTR(_ptr) (NULL) 1000 1001 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1002 { 1003 } 1004 1005 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1006 { 1007 } 1008 1009 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1010 { 1011 return -EINVAL; 1012 } 1013 1014 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1015 { 1016 return -EINVAL; 1017 } 1018 1019 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1020 { 1021 return NULL; 1022 } 1023 1024 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1025 { 1026 return -ENODEV; 1027 } 1028 1029 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1030 { 1031 return ERR_PTR(-ENODEV); 1032 } 1033 1034 static inline int acpi_register_wakeup_handler(int wake_irq, 1035 bool (*wakeup)(void *context), void *context) 1036 { 1037 return -ENXIO; 1038 } 1039 1040 static inline void acpi_unregister_wakeup_handler( 1041 bool (*wakeup)(void *context), void *context) { } 1042 1043 struct acpi_osc_context; 1044 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1045 { 1046 return 0; 1047 } 1048 1049 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1050 { 1051 return 0; 1052 } 1053 1054 #endif /* !CONFIG_ACPI */ 1055 1056 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1057 int acpi_ioapic_add(acpi_handle root); 1058 #else 1059 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1060 #endif 1061 1062 #ifdef CONFIG_ACPI 1063 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1064 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1065 1066 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1067 u32 pm1a_control, u32 pm1b_control); 1068 1069 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1070 u32 val_a, u32 val_b)); 1071 1072 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1073 u32 val_a, u32 val_b); 1074 #ifdef CONFIG_X86 1075 struct acpi_s2idle_dev_ops { 1076 struct list_head list_node; 1077 void (*prepare)(void); 1078 void (*restore)(void); 1079 }; 1080 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1081 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1082 #endif /* CONFIG_X86 */ 1083 #ifndef CONFIG_IA64 1084 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1085 #else 1086 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1087 size_t size) 1088 { 1089 } 1090 #endif /* CONFIG_X86 */ 1091 #else 1092 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1093 #endif 1094 1095 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1096 int acpi_dev_suspend(struct device *dev, bool wakeup); 1097 int acpi_dev_resume(struct device *dev); 1098 int acpi_subsys_runtime_suspend(struct device *dev); 1099 int acpi_subsys_runtime_resume(struct device *dev); 1100 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1101 bool acpi_storage_d3(struct device *dev); 1102 bool acpi_dev_state_d0(struct device *dev); 1103 #else 1104 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1105 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1106 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1107 { 1108 return 0; 1109 } 1110 static inline bool acpi_storage_d3(struct device *dev) 1111 { 1112 return false; 1113 } 1114 static inline bool acpi_dev_state_d0(struct device *dev) 1115 { 1116 return true; 1117 } 1118 #endif 1119 1120 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1121 int acpi_subsys_prepare(struct device *dev); 1122 void acpi_subsys_complete(struct device *dev); 1123 int acpi_subsys_suspend_late(struct device *dev); 1124 int acpi_subsys_suspend_noirq(struct device *dev); 1125 int acpi_subsys_suspend(struct device *dev); 1126 int acpi_subsys_freeze(struct device *dev); 1127 int acpi_subsys_poweroff(struct device *dev); 1128 void acpi_ec_mark_gpe_for_wake(void); 1129 void acpi_ec_set_gpe_wake_mask(u8 action); 1130 #else 1131 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1132 static inline void acpi_subsys_complete(struct device *dev) {} 1133 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1134 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1135 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1136 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1137 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1138 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1139 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1140 #endif 1141 1142 #ifdef CONFIG_ACPI 1143 __printf(3, 4) 1144 void acpi_handle_printk(const char *level, acpi_handle handle, 1145 const char *fmt, ...); 1146 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1147 acpi_status status); 1148 #else /* !CONFIG_ACPI */ 1149 static inline __printf(3, 4) void 1150 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1151 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1152 const char *name, 1153 acpi_status status) {} 1154 #endif /* !CONFIG_ACPI */ 1155 1156 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1157 __printf(3, 4) 1158 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1159 #endif 1160 1161 /* 1162 * acpi_handle_<level>: Print message with ACPI prefix and object path 1163 * 1164 * These interfaces acquire the global namespace mutex to obtain an object 1165 * path. In interrupt context, it shows the object path as <n/a>. 1166 */ 1167 #define acpi_handle_emerg(handle, fmt, ...) \ 1168 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1169 #define acpi_handle_alert(handle, fmt, ...) \ 1170 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1171 #define acpi_handle_crit(handle, fmt, ...) \ 1172 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1173 #define acpi_handle_err(handle, fmt, ...) \ 1174 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1175 #define acpi_handle_warn(handle, fmt, ...) \ 1176 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1177 #define acpi_handle_notice(handle, fmt, ...) \ 1178 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1179 #define acpi_handle_info(handle, fmt, ...) \ 1180 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1181 1182 #if defined(DEBUG) 1183 #define acpi_handle_debug(handle, fmt, ...) \ 1184 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1185 #else 1186 #if defined(CONFIG_DYNAMIC_DEBUG) 1187 #define acpi_handle_debug(handle, fmt, ...) \ 1188 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1189 handle, pr_fmt(fmt), ##__VA_ARGS__) 1190 #else 1191 #define acpi_handle_debug(handle, fmt, ...) \ 1192 ({ \ 1193 if (0) \ 1194 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1195 0; \ 1196 }) 1197 #endif 1198 #endif 1199 1200 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1201 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1202 struct acpi_resource_gpio **agpio); 1203 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1204 struct acpi_resource_gpio **agpio); 1205 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1206 #else 1207 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1208 struct acpi_resource_gpio **agpio) 1209 { 1210 return false; 1211 } 1212 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1213 struct acpi_resource_gpio **agpio) 1214 { 1215 return false; 1216 } 1217 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1218 const char *name, int index) 1219 { 1220 return -ENXIO; 1221 } 1222 #endif 1223 1224 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1225 { 1226 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1227 } 1228 1229 /* Device properties */ 1230 1231 #ifdef CONFIG_ACPI 1232 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1233 acpi_object_type type, const union acpi_object **obj); 1234 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1235 const char *name, size_t index, size_t num_args, 1236 struct fwnode_reference_args *args); 1237 1238 static inline int acpi_node_get_property_reference( 1239 const struct fwnode_handle *fwnode, 1240 const char *name, size_t index, 1241 struct fwnode_reference_args *args) 1242 { 1243 return __acpi_node_get_property_reference(fwnode, name, index, 1244 NR_FWNODE_REFERENCE_ARGS, args); 1245 } 1246 1247 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1248 { 1249 return !list_empty(&adev->data.properties); 1250 } 1251 1252 struct acpi_device_properties * 1253 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1254 union acpi_object *properties); 1255 1256 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1257 void **valptr); 1258 1259 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1260 struct fwnode_handle *child); 1261 1262 struct acpi_probe_entry; 1263 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1264 struct acpi_probe_entry *); 1265 1266 #define ACPI_TABLE_ID_LEN 5 1267 1268 /** 1269 * struct acpi_probe_entry - boot-time probing entry 1270 * @id: ACPI table name 1271 * @type: Optional subtable type to match 1272 * (if @id contains subtables) 1273 * @subtable_valid: Optional callback to check the validity of 1274 * the subtable 1275 * @probe_table: Callback to the driver being probed when table 1276 * match is successful 1277 * @probe_subtbl: Callback to the driver being probed when table and 1278 * subtable match (and optional callback is successful) 1279 * @driver_data: Sideband data provided back to the driver 1280 */ 1281 struct acpi_probe_entry { 1282 __u8 id[ACPI_TABLE_ID_LEN]; 1283 __u8 type; 1284 acpi_probe_entry_validate_subtbl subtable_valid; 1285 union { 1286 acpi_tbl_table_handler probe_table; 1287 acpi_tbl_entry_handler probe_subtbl; 1288 }; 1289 kernel_ulong_t driver_data; 1290 }; 1291 1292 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1293 valid, data, fn) \ 1294 static const struct acpi_probe_entry __acpi_probe_##name \ 1295 __used __section("__" #table "_acpi_probe_table") = { \ 1296 .id = table_id, \ 1297 .type = subtable, \ 1298 .subtable_valid = valid, \ 1299 .probe_table = fn, \ 1300 .driver_data = data, \ 1301 } 1302 1303 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1304 subtable, valid, data, fn) \ 1305 static const struct acpi_probe_entry __acpi_probe_##name \ 1306 __used __section("__" #table "_acpi_probe_table") = { \ 1307 .id = table_id, \ 1308 .type = subtable, \ 1309 .subtable_valid = valid, \ 1310 .probe_subtbl = fn, \ 1311 .driver_data = data, \ 1312 } 1313 1314 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1315 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1316 1317 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1318 1319 #define acpi_probe_device_table(t) \ 1320 ({ \ 1321 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1322 ACPI_PROBE_TABLE_END(t); \ 1323 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1324 (&ACPI_PROBE_TABLE_END(t) - \ 1325 &ACPI_PROBE_TABLE(t))); \ 1326 }) 1327 #else 1328 static inline int acpi_dev_get_property(struct acpi_device *adev, 1329 const char *name, acpi_object_type type, 1330 const union acpi_object **obj) 1331 { 1332 return -ENXIO; 1333 } 1334 1335 static inline int 1336 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1337 const char *name, size_t index, size_t num_args, 1338 struct fwnode_reference_args *args) 1339 { 1340 return -ENXIO; 1341 } 1342 1343 static inline int 1344 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1345 const char *name, size_t index, 1346 struct fwnode_reference_args *args) 1347 { 1348 return -ENXIO; 1349 } 1350 1351 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1352 const char *propname, 1353 void **valptr) 1354 { 1355 return -ENXIO; 1356 } 1357 1358 static inline struct fwnode_handle * 1359 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1360 struct fwnode_handle *child) 1361 { 1362 return NULL; 1363 } 1364 1365 static inline struct fwnode_handle * 1366 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1367 struct fwnode_handle *prev) 1368 { 1369 return ERR_PTR(-ENXIO); 1370 } 1371 1372 static inline int 1373 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1374 struct fwnode_handle **remote, 1375 struct fwnode_handle **port, 1376 struct fwnode_handle **endpoint) 1377 { 1378 return -ENXIO; 1379 } 1380 1381 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1382 static const void * __acpi_table_##name[] \ 1383 __attribute__((unused)) \ 1384 = { (void *) table_id, \ 1385 (void *) subtable, \ 1386 (void *) valid, \ 1387 (void *) fn, \ 1388 (void *) data } 1389 1390 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1391 #endif 1392 1393 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1394 void acpi_table_upgrade(void); 1395 #else 1396 static inline void acpi_table_upgrade(void) { } 1397 #endif 1398 1399 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1400 extern bool acpi_has_watchdog(void); 1401 #else 1402 static inline bool acpi_has_watchdog(void) { return false; } 1403 #endif 1404 1405 #ifdef CONFIG_ACPI_SPCR_TABLE 1406 extern bool qdf2400_e44_present; 1407 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1408 #else 1409 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1410 { 1411 return 0; 1412 } 1413 #endif 1414 1415 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1416 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1417 #else 1418 static inline 1419 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1420 { 1421 return -EINVAL; 1422 } 1423 #endif 1424 1425 #ifdef CONFIG_ACPI_LPIT 1426 int lpit_read_residency_count_address(u64 *address); 1427 #else 1428 static inline int lpit_read_residency_count_address(u64 *address) 1429 { 1430 return -EINVAL; 1431 } 1432 #endif 1433 1434 #ifdef CONFIG_ACPI_PPTT 1435 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1436 int find_acpi_cpu_topology(unsigned int cpu, int level); 1437 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1438 int find_acpi_cpu_topology_package(unsigned int cpu); 1439 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1440 #else 1441 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1442 { 1443 return -EINVAL; 1444 } 1445 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1446 { 1447 return -EINVAL; 1448 } 1449 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1450 { 1451 return -EINVAL; 1452 } 1453 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1454 { 1455 return -EINVAL; 1456 } 1457 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1458 { 1459 return -EINVAL; 1460 } 1461 #endif 1462 1463 #ifdef CONFIG_ACPI_PCC 1464 void acpi_init_pcc(void); 1465 #else 1466 static inline void acpi_init_pcc(void) { } 1467 #endif 1468 1469 #ifdef CONFIG_ACPI 1470 extern void acpi_device_notify(struct device *dev); 1471 extern void acpi_device_notify_remove(struct device *dev); 1472 #else 1473 static inline void acpi_device_notify(struct device *dev) { } 1474 static inline void acpi_device_notify_remove(struct device *dev) { } 1475 #endif 1476 1477 #endif /*_LINUX_ACPI_H*/ 1478