1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 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 #include <linux/node.h> 19 20 struct irq_domain; 21 struct irq_domain_ops; 22 23 #ifndef _LINUX 24 #define _LINUX 25 #endif 26 #include <acpi/acpi.h> 27 #include <acpi/acpi_numa.h> 28 29 #ifdef CONFIG_ACPI 30 31 #include <linux/list.h> 32 #include <linux/dynamic_debug.h> 33 #include <linux/module.h> 34 #include <linux/mutex.h> 35 #include <linux/fw_table.h> 36 37 #include <acpi/acpi_bus.h> 38 #include <acpi/acpi_drivers.h> 39 #include <acpi/acpi_io.h> 40 #include <asm/acpi.h> 41 42 #ifdef CONFIG_ACPI_TABLE_LIB 43 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, "ACPI") 44 #define __init_or_acpilib 45 #define __initdata_or_acpilib 46 #else 47 #define EXPORT_SYMBOL_ACPI_LIB(x) 48 #define __init_or_acpilib __init 49 #define __initdata_or_acpilib __initdata 50 #endif 51 52 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 53 { 54 return adev ? adev->handle : NULL; 55 } 56 57 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 58 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 59 acpi_fwnode_handle(adev) : NULL) 60 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 61 #define ACPI_HANDLE_FWNODE(fwnode) \ 62 acpi_device_handle(to_acpi_device_node(fwnode)) 63 64 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 65 { 66 struct fwnode_handle *fwnode; 67 68 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 69 if (!fwnode) 70 return NULL; 71 72 fwnode_init(fwnode, &acpi_static_fwnode_ops); 73 74 return fwnode; 75 } 76 77 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 78 { 79 if (WARN_ON(!is_acpi_static_node(fwnode))) 80 return; 81 82 kfree(fwnode); 83 } 84 85 static inline bool has_acpi_companion(struct device *dev) 86 { 87 return is_acpi_device_node(dev->fwnode); 88 } 89 90 static inline void acpi_preset_companion(struct device *dev, 91 struct acpi_device *parent, u64 addr) 92 { 93 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 94 } 95 96 static inline const char *acpi_dev_name(struct acpi_device *adev) 97 { 98 return dev_name(&adev->dev); 99 } 100 101 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 102 103 enum acpi_irq_model_id { 104 ACPI_IRQ_MODEL_PIC = 0, 105 ACPI_IRQ_MODEL_IOAPIC, 106 ACPI_IRQ_MODEL_IOSAPIC, 107 ACPI_IRQ_MODEL_PLATFORM, 108 ACPI_IRQ_MODEL_GIC, 109 ACPI_IRQ_MODEL_LPIC, 110 ACPI_IRQ_MODEL_RINTC, 111 ACPI_IRQ_MODEL_COUNT 112 }; 113 114 extern enum acpi_irq_model_id acpi_irq_model; 115 116 enum acpi_interrupt_id { 117 ACPI_INTERRUPT_PMI = 1, 118 ACPI_INTERRUPT_INIT, 119 ACPI_INTERRUPT_CPEI, 120 ACPI_INTERRUPT_COUNT 121 }; 122 123 #define ACPI_SPACE_MEM 0 124 125 enum acpi_address_range_id { 126 ACPI_ADDRESS_RANGE_MEMORY = 1, 127 ACPI_ADDRESS_RANGE_RESERVED = 2, 128 ACPI_ADDRESS_RANGE_ACPI = 3, 129 ACPI_ADDRESS_RANGE_NVS = 4, 130 ACPI_ADDRESS_RANGE_COUNT 131 }; 132 133 134 /* Table Handlers */ 135 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 136 137 /* Debugger support */ 138 139 struct 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 }; 146 147 struct acpi_debugger { 148 const struct acpi_debugger_ops *ops; 149 struct module *owner; 150 struct mutex lock; 151 }; 152 153 #ifdef CONFIG_ACPI_DEBUGGER 154 int __init acpi_debugger_init(void); 155 int acpi_register_debugger(struct module *owner, 156 const struct acpi_debugger_ops *ops); 157 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 158 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 159 ssize_t acpi_debugger_write_log(const char *msg); 160 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 161 int acpi_debugger_wait_command_ready(void); 162 int acpi_debugger_notify_command_complete(void); 163 #else 164 static inline int acpi_debugger_init(void) 165 { 166 return -ENODEV; 167 } 168 169 static inline int acpi_register_debugger(struct module *owner, 170 const struct acpi_debugger_ops *ops) 171 { 172 return -ENODEV; 173 } 174 175 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 176 { 177 } 178 179 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 180 void *context) 181 { 182 return -ENODEV; 183 } 184 185 static inline int acpi_debugger_write_log(const char *msg) 186 { 187 return -ENODEV; 188 } 189 190 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 191 { 192 return -ENODEV; 193 } 194 195 static inline int acpi_debugger_wait_command_ready(void) 196 { 197 return -ENODEV; 198 } 199 200 static 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)) 209 210 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 211 void __acpi_unmap_table(void __iomem *map, unsigned long size); 212 int early_acpi_boot_init(void); 213 int acpi_boot_init (void); 214 void acpi_boot_table_prepare (void); 215 void acpi_boot_table_init (void); 216 int acpi_mps_check (void); 217 int acpi_numa_init (void); 218 219 int acpi_locate_initial_tables (void); 220 void acpi_reserve_initial_tables (void); 221 void acpi_table_init_complete (void); 222 int acpi_table_init (void); 223 224 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 225 int __init_or_acpilib acpi_table_parse_entries(char *id, 226 unsigned long table_size, int entry_id, 227 acpi_tbl_entry_handler handler, unsigned int max_entries); 228 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 229 unsigned long table_size, struct acpi_subtable_proc *proc, 230 int proc_num, unsigned int max_entries); 231 int acpi_table_parse_madt(enum acpi_madt_type id, 232 acpi_tbl_entry_handler handler, 233 unsigned int max_entries); 234 int __init_or_acpilib 235 acpi_table_parse_cedt(enum acpi_cedt_type id, 236 acpi_tbl_entry_handler_arg handler_arg, void *arg); 237 238 int acpi_parse_mcfg (struct acpi_table_header *header); 239 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 240 241 #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) 242 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 243 #else 244 static inline void 245 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 246 #endif 247 248 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 249 250 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 251 void acpi_arch_dma_setup(struct device *dev); 252 #else 253 static inline void acpi_arch_dma_setup(struct device *dev) { } 254 #endif 255 256 #ifdef CONFIG_ARM64 257 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 258 #else 259 static inline void 260 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 261 #endif 262 263 #ifdef CONFIG_RISCV 264 void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa); 265 #else 266 static inline void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa) { } 267 #endif 268 269 #ifndef PHYS_CPUID_INVALID 270 typedef u32 phys_cpuid_t; 271 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 272 #endif 273 274 static inline bool invalid_logical_cpuid(u32 cpuid) 275 { 276 return (int)cpuid < 0; 277 } 278 279 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 280 { 281 return phys_id == PHYS_CPUID_INVALID; 282 } 283 284 285 int __init acpi_get_madt_revision(void); 286 287 /* Validate the processor object's proc_id */ 288 bool acpi_duplicate_processor_id(int proc_id); 289 /* Processor _CTS control */ 290 struct acpi_processor_power; 291 292 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 293 bool acpi_processor_claim_cst_control(void); 294 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 295 struct acpi_processor_power *info); 296 #else 297 static inline bool acpi_processor_claim_cst_control(void) { return false; } 298 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 299 struct acpi_processor_power *info) 300 { 301 return -ENODEV; 302 } 303 #endif 304 305 #ifdef CONFIG_ACPI_HOTPLUG_CPU 306 /* Arch dependent functions for cpu hotplug support */ 307 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 308 int *pcpu); 309 int acpi_unmap_cpu(int cpu); 310 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 311 312 acpi_handle acpi_get_processor_handle(int cpu); 313 314 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 315 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 316 #endif 317 318 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 319 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 320 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 321 void acpi_irq_stats_init(void); 322 extern u32 acpi_irq_handled; 323 extern u32 acpi_irq_not_handled; 324 extern unsigned int acpi_sci_irq; 325 extern bool acpi_no_s5; 326 #define INVALID_ACPI_IRQ ((unsigned)-1) 327 static inline bool acpi_sci_irq_valid(void) 328 { 329 return acpi_sci_irq != INVALID_ACPI_IRQ; 330 } 331 332 extern int sbf_port; 333 extern unsigned long acpi_realmode_flags; 334 335 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 336 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 337 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 338 339 void acpi_set_irq_model(enum acpi_irq_model_id model, 340 struct fwnode_handle *(*)(u32)); 341 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 342 343 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 344 unsigned int size, 345 struct fwnode_handle *fwnode, 346 const struct irq_domain_ops *ops, 347 void *host_data); 348 349 #ifdef CONFIG_X86_IO_APIC 350 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 351 #else 352 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 353 { 354 return -1; 355 } 356 #endif 357 /* 358 * This function undoes the effect of one call to acpi_register_gsi(). 359 * If this matches the last registration, any IRQ resources for gsi 360 * are freed. 361 */ 362 void acpi_unregister_gsi (u32 gsi); 363 364 struct pci_dev; 365 366 struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin); 367 int acpi_pci_irq_enable (struct pci_dev *dev); 368 void acpi_penalize_isa_irq(int irq, int active); 369 bool acpi_isa_irq_available(int irq); 370 #ifdef CONFIG_PCI 371 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 372 #else 373 static inline void acpi_penalize_sci_irq(int irq, int trigger, 374 int polarity) 375 { 376 } 377 #endif 378 void acpi_pci_irq_disable (struct pci_dev *dev); 379 380 extern int ec_read(u8 addr, u8 *val); 381 extern int ec_write(u8 addr, u8 val); 382 extern int ec_transaction(u8 command, 383 const u8 *wdata, unsigned wdata_len, 384 u8 *rdata, unsigned rdata_len); 385 extern acpi_handle ec_get_handle(void); 386 387 extern bool acpi_is_pnp_device(struct acpi_device *); 388 389 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 390 391 typedef void (*wmi_notify_handler) (union acpi_object *data, void *context); 392 393 int wmi_instance_count(const char *guid); 394 395 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 396 u32 method_id, 397 const struct acpi_buffer *in, 398 struct acpi_buffer *out); 399 extern acpi_status wmi_query_block(const char *guid, u8 instance, 400 struct acpi_buffer *out); 401 extern acpi_status wmi_set_block(const char *guid, u8 instance, 402 const struct acpi_buffer *in); 403 extern acpi_status wmi_install_notify_handler(const char *guid, 404 wmi_notify_handler handler, void *data); 405 extern acpi_status wmi_remove_notify_handler(const char *guid); 406 extern bool wmi_has_guid(const char *guid); 407 extern char *wmi_get_acpi_device_uid(const char *guid); 408 409 #endif /* CONFIG_ACPI_WMI */ 410 411 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 412 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 413 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 414 #define ACPI_VIDEO_BACKLIGHT 0x0008 415 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 416 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 417 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 418 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 419 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 420 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 421 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 422 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 423 424 extern char acpi_video_backlight_string[]; 425 extern long acpi_is_video_device(acpi_handle handle); 426 427 extern void acpi_osi_setup(char *str); 428 extern bool acpi_osi_is_win8(void); 429 430 #ifdef CONFIG_ACPI_THERMAL_LIB 431 int thermal_acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp); 432 int thermal_acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp); 433 int thermal_acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp); 434 int thermal_acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp); 435 #endif 436 437 #ifdef CONFIG_ACPI_HMAT 438 int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord); 439 #else 440 static inline int acpi_get_genport_coordinates(u32 uid, 441 struct access_coordinate *coord) 442 { 443 return -EOPNOTSUPP; 444 } 445 #endif 446 447 #ifdef CONFIG_ACPI_NUMA 448 int acpi_map_pxm_to_node(int pxm); 449 int acpi_get_node(acpi_handle handle); 450 451 /** 452 * pxm_to_online_node - Map proximity ID to online node 453 * @pxm: ACPI proximity ID 454 * 455 * This is similar to pxm_to_node(), but always returns an online 456 * node. When the mapped node from a given proximity ID is offline, it 457 * looks up the node distance table and returns the nearest online node. 458 * 459 * ACPI device drivers, which are called after the NUMA initialization has 460 * completed in the kernel, can call this interface to obtain their device 461 * NUMA topology from ACPI tables. Such drivers do not have to deal with 462 * offline nodes. A node may be offline when SRAT memory entry does not exist, 463 * or NUMA is disabled, ex. "numa=off" on x86. 464 */ 465 static inline int pxm_to_online_node(int pxm) 466 { 467 int node = pxm_to_node(pxm); 468 469 return numa_map_to_online_node(node); 470 } 471 #else 472 static inline int pxm_to_online_node(int pxm) 473 { 474 return 0; 475 } 476 static inline int acpi_map_pxm_to_node(int pxm) 477 { 478 return 0; 479 } 480 static inline int acpi_get_node(acpi_handle handle) 481 { 482 return 0; 483 } 484 #endif 485 extern int pnpacpi_disabled; 486 487 #define PXM_INVAL (-1) 488 489 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 490 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 491 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 492 struct resource_win *win); 493 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 494 struct resource_win *win); 495 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 496 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 497 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 498 struct resource *res); 499 500 void acpi_dev_free_resource_list(struct list_head *list); 501 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 502 int (*preproc)(struct acpi_resource *, void *), 503 void *preproc_data); 504 int acpi_dev_get_dma_resources(struct acpi_device *adev, 505 struct list_head *list); 506 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 507 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 508 unsigned long types); 509 510 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 511 void *arg) 512 { 513 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 514 } 515 516 struct acpi_device *acpi_resource_consumer(struct resource *res); 517 518 int acpi_check_resource_conflict(const struct resource *res); 519 520 int acpi_check_region(resource_size_t start, resource_size_t n, 521 const char *name); 522 523 int acpi_resources_are_enforced(void); 524 525 #ifdef CONFIG_HIBERNATION 526 extern int acpi_check_s4_hw_signature; 527 #endif 528 529 #ifdef CONFIG_PM_SLEEP 530 void __init acpi_old_suspend_ordering(void); 531 void __init acpi_nvs_nosave(void); 532 void __init acpi_nvs_nosave_s3(void); 533 void __init acpi_sleep_no_blacklist(void); 534 #endif /* CONFIG_PM_SLEEP */ 535 536 int acpi_register_wakeup_handler( 537 int wake_irq, bool (*wakeup)(void *context), void *context); 538 void acpi_unregister_wakeup_handler( 539 bool (*wakeup)(void *context), void *context); 540 541 struct acpi_osc_context { 542 char *uuid_str; /* UUID string */ 543 int rev; 544 struct acpi_buffer cap; /* list of DWORD capabilities */ 545 struct acpi_buffer ret; /* free by caller if success */ 546 }; 547 548 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 549 550 /* Number of _OSC capability DWORDS depends on bridge type */ 551 #define OSC_PCI_CAPABILITY_DWORDS 3 552 #define OSC_CXL_CAPABILITY_DWORDS 5 553 554 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 555 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 556 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 557 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 558 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 559 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 560 561 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 562 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 563 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 564 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 565 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 566 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 567 568 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 569 #define OSC_SB_PAD_SUPPORT 0x00000001 570 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 571 #define OSC_SB_PR3_SUPPORT 0x00000004 572 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 573 #define OSC_SB_APEI_SUPPORT 0x00000010 574 #define OSC_SB_CPC_SUPPORT 0x00000020 575 #define OSC_SB_CPCV2_SUPPORT 0x00000040 576 #define OSC_SB_PCLPI_SUPPORT 0x00000080 577 #define OSC_SB_OSLPI_SUPPORT 0x00000100 578 #define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200 579 #define OSC_SB_OVER_16_PSTATES_SUPPORT 0x00000400 580 #define OSC_SB_GED_SUPPORT 0x00000800 581 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 582 #define OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT 0x00002000 583 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 584 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00020000 585 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 586 #define OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT 0x00080000 587 #define OSC_SB_PRM_SUPPORT 0x00200000 588 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 589 590 extern bool osc_sb_apei_support_acked; 591 extern bool osc_pc_lpi_support_confirmed; 592 extern bool osc_sb_native_usb4_support_confirmed; 593 extern bool osc_sb_cppc2_support_acked; 594 extern bool osc_cpc_flexible_adr_space_confirmed; 595 596 /* USB4 Capabilities */ 597 #define OSC_USB_USB3_TUNNELING 0x00000001 598 #define OSC_USB_DP_TUNNELING 0x00000002 599 #define OSC_USB_PCIE_TUNNELING 0x00000004 600 #define OSC_USB_XDOMAIN 0x00000008 601 602 extern u32 osc_sb_native_usb4_control; 603 604 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 605 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 606 #define OSC_PCI_ASPM_SUPPORT 0x00000002 607 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 608 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 609 #define OSC_PCI_MSI_SUPPORT 0x00000010 610 #define OSC_PCI_EDR_SUPPORT 0x00000080 611 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 612 613 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 614 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 615 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 616 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 617 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 618 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 619 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 620 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 621 622 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 623 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 624 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 625 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 626 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 627 628 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 629 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 630 631 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 632 { 633 u32 *ret = context->ret.pointer; 634 635 return ret[OSC_CONTROL_DWORD]; 636 } 637 638 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 639 { 640 u32 *ret = context->ret.pointer; 641 642 return ret[OSC_EXT_CONTROL_DWORD]; 643 } 644 645 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 646 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 647 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 648 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 649 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 650 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 651 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 652 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 653 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 655 656 /* Enable _OST when all relevant hotplug operations are enabled */ 657 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 658 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 659 defined(CONFIG_ACPI_CONTAINER) 660 #define ACPI_HOTPLUG_OST 661 #endif 662 663 /* _OST Source Event Code (OSPM Action) */ 664 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 665 #define ACPI_OST_EC_OSPM_EJECT 0x103 666 #define ACPI_OST_EC_OSPM_INSERTION 0x200 667 668 /* _OST General Processing Status Code */ 669 #define ACPI_OST_SC_SUCCESS 0x0 670 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 671 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 672 673 /* _OST OS Shutdown Processing (0x100) Status Code */ 674 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 675 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 676 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 677 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 678 679 /* _OST Ejection Request (0x3, 0x103) Status Code */ 680 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 681 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 682 #define ACPI_OST_SC_DEVICE_BUSY 0x82 683 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 684 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 685 686 /* _OST Insertion Request (0x200) Status Code */ 687 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 688 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 689 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 690 691 enum acpi_predicate { 692 all_versions, 693 less_than_or_equal, 694 equal, 695 greater_than_or_equal, 696 }; 697 698 /* Table must be terminted by a NULL entry */ 699 struct acpi_platform_list { 700 char oem_id[ACPI_OEM_ID_SIZE+1]; 701 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 702 u32 oem_revision; 703 char *table; 704 enum acpi_predicate pred; 705 char *reason; 706 u32 data; 707 }; 708 int acpi_match_platform_list(const struct acpi_platform_list *plat); 709 710 extern void acpi_early_init(void); 711 extern void acpi_subsystem_init(void); 712 713 extern int acpi_nvs_register(__u64 start, __u64 size); 714 715 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 716 void *data); 717 718 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, 719 const struct acpi_device *adev); 720 721 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 722 const struct device *dev); 723 724 const void *acpi_device_get_match_data(const struct device *dev); 725 extern bool acpi_driver_match_device(struct device *dev, 726 const struct device_driver *drv); 727 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *); 728 int acpi_device_modalias(struct device *, char *, int); 729 730 struct platform_device *acpi_create_platform_device(struct acpi_device *, 731 const struct property_entry *); 732 #define ACPI_PTR(_ptr) (_ptr) 733 734 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 735 { 736 adev->flags.visited = true; 737 } 738 739 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 740 { 741 adev->flags.visited = false; 742 } 743 744 enum acpi_reconfig_event { 745 ACPI_RECONFIG_DEVICE_ADD = 0, 746 ACPI_RECONFIG_DEVICE_REMOVE, 747 }; 748 749 int acpi_reconfig_notifier_register(struct notifier_block *nb); 750 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 751 752 #ifdef CONFIG_ACPI_GTDT 753 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 754 int acpi_gtdt_map_ppi(int type); 755 bool acpi_gtdt_c3stop(int type); 756 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 757 #endif 758 759 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 760 static inline void acpi_arch_set_root_pointer(u64 addr) 761 { 762 } 763 #endif 764 765 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 766 static inline u64 acpi_arch_get_root_pointer(void) 767 { 768 return 0; 769 } 770 #endif 771 772 int acpi_get_local_u64_address(acpi_handle handle, u64 *addr); 773 int acpi_get_local_address(acpi_handle handle, u32 *addr); 774 const char *acpi_get_subsystem_id(acpi_handle handle); 775 776 #else /* !CONFIG_ACPI */ 777 778 #define acpi_disabled 1 779 780 #define ACPI_COMPANION(dev) (NULL) 781 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 782 #define ACPI_HANDLE(dev) (NULL) 783 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 784 785 /* Get rid of the -Wunused-variable for adev */ 786 #define acpi_dev_uid_match(adev, uid2) (adev && false) 787 #define acpi_dev_hid_uid_match(adev, hid2, uid2) (adev && false) 788 789 struct fwnode_handle; 790 791 static inline bool acpi_dev_found(const char *hid) 792 { 793 return false; 794 } 795 796 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 797 { 798 return false; 799 } 800 801 struct acpi_device; 802 803 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 804 { 805 return -ENODEV; 806 } 807 808 static inline struct acpi_device * 809 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 810 { 811 return NULL; 812 } 813 814 static inline bool acpi_reduced_hardware(void) 815 { 816 return false; 817 } 818 819 static inline void acpi_dev_put(struct acpi_device *adev) {} 820 821 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 822 { 823 return false; 824 } 825 826 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 827 { 828 return false; 829 } 830 831 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 832 { 833 return NULL; 834 } 835 836 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 837 { 838 return false; 839 } 840 841 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 842 { 843 return NULL; 844 } 845 846 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 847 const char *name) 848 { 849 return false; 850 } 851 852 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 853 { 854 return NULL; 855 } 856 857 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 858 { 859 return NULL; 860 } 861 862 static inline bool has_acpi_companion(struct device *dev) 863 { 864 return false; 865 } 866 867 static inline void acpi_preset_companion(struct device *dev, 868 struct acpi_device *parent, u64 addr) 869 { 870 } 871 872 static inline const char *acpi_dev_name(struct acpi_device *adev) 873 { 874 return NULL; 875 } 876 877 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 878 { 879 return NULL; 880 } 881 882 static inline void acpi_early_init(void) { } 883 static inline void acpi_subsystem_init(void) { } 884 885 static inline int early_acpi_boot_init(void) 886 { 887 return 0; 888 } 889 static inline int acpi_boot_init(void) 890 { 891 return 0; 892 } 893 894 static inline void acpi_boot_table_prepare(void) 895 { 896 } 897 898 static inline void acpi_boot_table_init(void) 899 { 900 } 901 902 static inline int acpi_mps_check(void) 903 { 904 return 0; 905 } 906 907 static inline int acpi_check_resource_conflict(struct resource *res) 908 { 909 return 0; 910 } 911 912 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 913 const char *name) 914 { 915 return 0; 916 } 917 918 struct acpi_table_header; 919 static inline int acpi_table_parse(char *id, 920 int (*handler)(struct acpi_table_header *)) 921 { 922 return -ENODEV; 923 } 924 925 static inline int acpi_nvs_register(__u64 start, __u64 size) 926 { 927 return 0; 928 } 929 930 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 931 void *data) 932 { 933 return 0; 934 } 935 936 struct acpi_device_id; 937 938 static inline const struct acpi_device_id *acpi_match_acpi_device( 939 const struct acpi_device_id *ids, const struct acpi_device *adev) 940 { 941 return NULL; 942 } 943 944 static inline const struct acpi_device_id *acpi_match_device( 945 const struct acpi_device_id *ids, const struct device *dev) 946 { 947 return NULL; 948 } 949 950 static inline const void *acpi_device_get_match_data(const struct device *dev) 951 { 952 return NULL; 953 } 954 955 static inline bool acpi_driver_match_device(struct device *dev, 956 const struct device_driver *drv) 957 { 958 return false; 959 } 960 961 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 962 u64 rev, u64 funcs) 963 { 964 return false; 965 } 966 967 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 968 const guid_t *guid, 969 u64 rev, u64 func, 970 union acpi_object *argv4) 971 { 972 return NULL; 973 } 974 975 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 976 const guid_t *guid, 977 u64 rev, u64 func, 978 union acpi_object *argv4, 979 acpi_object_type type) 980 { 981 return NULL; 982 } 983 984 static inline int acpi_device_uevent_modalias(const struct device *dev, 985 struct kobj_uevent_env *env) 986 { 987 return -ENODEV; 988 } 989 990 static inline int acpi_device_modalias(struct device *dev, 991 char *buf, int size) 992 { 993 return -ENODEV; 994 } 995 996 static inline struct platform_device * 997 acpi_create_platform_device(struct acpi_device *adev, 998 const struct property_entry *properties) 999 { 1000 return NULL; 1001 } 1002 1003 static inline bool acpi_dma_supported(const struct acpi_device *adev) 1004 { 1005 return false; 1006 } 1007 1008 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 1009 { 1010 return DEV_DMA_NOT_SUPPORTED; 1011 } 1012 1013 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 1014 { 1015 return -ENODEV; 1016 } 1017 1018 static inline int acpi_dma_configure(struct device *dev, 1019 enum dev_dma_attr attr) 1020 { 1021 return 0; 1022 } 1023 1024 static inline int acpi_dma_configure_id(struct device *dev, 1025 enum dev_dma_attr attr, 1026 const u32 *input_id) 1027 { 1028 return 0; 1029 } 1030 1031 #define ACPI_PTR(_ptr) (NULL) 1032 1033 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1034 { 1035 } 1036 1037 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1038 { 1039 } 1040 1041 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1042 { 1043 return -EINVAL; 1044 } 1045 1046 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1047 { 1048 return -EINVAL; 1049 } 1050 1051 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1052 { 1053 return NULL; 1054 } 1055 1056 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1057 { 1058 return -ENODEV; 1059 } 1060 1061 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1062 { 1063 return ERR_PTR(-ENODEV); 1064 } 1065 1066 static inline int acpi_register_wakeup_handler(int wake_irq, 1067 bool (*wakeup)(void *context), void *context) 1068 { 1069 return -ENXIO; 1070 } 1071 1072 static inline void acpi_unregister_wakeup_handler( 1073 bool (*wakeup)(void *context), void *context) { } 1074 1075 struct acpi_osc_context; 1076 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1077 { 1078 return 0; 1079 } 1080 1081 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1082 { 1083 return 0; 1084 } 1085 1086 static inline bool acpi_sleep_state_supported(u8 sleep_state) 1087 { 1088 return false; 1089 } 1090 1091 static inline acpi_handle acpi_get_processor_handle(int cpu) 1092 { 1093 return NULL; 1094 } 1095 1096 #endif /* !CONFIG_ACPI */ 1097 1098 extern void arch_post_acpi_subsys_init(void); 1099 1100 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1101 int acpi_ioapic_add(acpi_handle root); 1102 #else 1103 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1104 #endif 1105 1106 #ifdef CONFIG_ACPI 1107 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1108 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1109 1110 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1111 u32 pm1a_control, u32 pm1b_control); 1112 1113 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1114 u32 val_a, u32 val_b)); 1115 1116 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1117 u32 val_a, u32 val_b); 1118 #if defined(CONFIG_SUSPEND) && defined(CONFIG_X86) 1119 struct acpi_s2idle_dev_ops { 1120 struct list_head list_node; 1121 void (*prepare)(void); 1122 void (*check)(void); 1123 void (*restore)(void); 1124 }; 1125 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1126 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1127 int acpi_get_lps0_constraint(struct acpi_device *adev); 1128 #else /* CONFIG_SUSPEND && CONFIG_X86 */ 1129 static inline int acpi_get_lps0_constraint(struct device *dev) 1130 { 1131 return ACPI_STATE_UNKNOWN; 1132 } 1133 #endif /* CONFIG_SUSPEND && CONFIG_X86 */ 1134 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1135 #else 1136 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1137 #endif 1138 1139 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1140 int acpi_dev_suspend(struct device *dev, bool wakeup); 1141 int acpi_dev_resume(struct device *dev); 1142 int acpi_subsys_runtime_suspend(struct device *dev); 1143 int acpi_subsys_runtime_resume(struct device *dev); 1144 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1145 bool acpi_storage_d3(struct device *dev); 1146 bool acpi_dev_state_d0(struct device *dev); 1147 #else 1148 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1149 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1150 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1151 { 1152 return 0; 1153 } 1154 static inline bool acpi_storage_d3(struct device *dev) 1155 { 1156 return false; 1157 } 1158 static inline bool acpi_dev_state_d0(struct device *dev) 1159 { 1160 return true; 1161 } 1162 #endif 1163 1164 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1165 int acpi_subsys_prepare(struct device *dev); 1166 void acpi_subsys_complete(struct device *dev); 1167 int acpi_subsys_suspend_late(struct device *dev); 1168 int acpi_subsys_suspend_noirq(struct device *dev); 1169 int acpi_subsys_suspend(struct device *dev); 1170 int acpi_subsys_freeze(struct device *dev); 1171 int acpi_subsys_poweroff(struct device *dev); 1172 int acpi_subsys_restore_early(struct device *dev); 1173 #else 1174 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1175 static inline void acpi_subsys_complete(struct device *dev) {} 1176 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1177 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1178 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1179 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1180 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1181 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1182 #endif 1183 1184 #if defined(CONFIG_ACPI_EC) && defined(CONFIG_PM_SLEEP) 1185 void acpi_ec_mark_gpe_for_wake(void); 1186 void acpi_ec_set_gpe_wake_mask(u8 action); 1187 #else 1188 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1189 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1190 #endif 1191 1192 #ifdef CONFIG_ACPI 1193 char *acpi_handle_path(acpi_handle handle); 1194 __printf(3, 4) 1195 void acpi_handle_printk(const char *level, acpi_handle handle, 1196 const char *fmt, ...); 1197 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1198 acpi_status status); 1199 #else /* !CONFIG_ACPI */ 1200 static inline __printf(3, 4) void 1201 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1202 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1203 const char *name, 1204 acpi_status status) {} 1205 #endif /* !CONFIG_ACPI */ 1206 1207 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1208 __printf(3, 4) 1209 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1210 #endif 1211 1212 /* 1213 * acpi_handle_<level>: Print message with ACPI prefix and object path 1214 * 1215 * These interfaces acquire the global namespace mutex to obtain an object 1216 * path. In interrupt context, it shows the object path as <n/a>. 1217 */ 1218 #define acpi_handle_emerg(handle, fmt, ...) \ 1219 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1220 #define acpi_handle_alert(handle, fmt, ...) \ 1221 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1222 #define acpi_handle_crit(handle, fmt, ...) \ 1223 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1224 #define acpi_handle_err(handle, fmt, ...) \ 1225 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1226 #define acpi_handle_warn(handle, fmt, ...) \ 1227 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1228 #define acpi_handle_notice(handle, fmt, ...) \ 1229 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1230 #define acpi_handle_info(handle, fmt, ...) \ 1231 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1232 1233 #if defined(DEBUG) 1234 #define acpi_handle_debug(handle, fmt, ...) \ 1235 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1236 #else 1237 #if defined(CONFIG_DYNAMIC_DEBUG) 1238 #define acpi_handle_debug(handle, fmt, ...) \ 1239 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1240 handle, pr_fmt(fmt), ##__VA_ARGS__) 1241 #else 1242 #define acpi_handle_debug(handle, fmt, ...) \ 1243 ({ \ 1244 if (0) \ 1245 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1246 0; \ 1247 }) 1248 #endif 1249 #endif 1250 1251 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1252 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1253 struct acpi_resource_gpio **agpio); 1254 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1255 struct acpi_resource_gpio **agpio); 1256 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, int index, 1257 bool *wake_capable); 1258 #else 1259 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1260 struct acpi_resource_gpio **agpio) 1261 { 1262 return false; 1263 } 1264 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1265 struct acpi_resource_gpio **agpio) 1266 { 1267 return false; 1268 } 1269 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, 1270 int index, bool *wake_capable) 1271 { 1272 return -ENXIO; 1273 } 1274 #endif 1275 1276 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1277 bool *wake_capable) 1278 { 1279 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1280 } 1281 1282 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *con_id, 1283 int index) 1284 { 1285 return acpi_dev_gpio_irq_wake_get_by(adev, con_id, index, NULL); 1286 } 1287 1288 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1289 { 1290 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1291 } 1292 1293 /* Device properties */ 1294 1295 #ifdef CONFIG_ACPI 1296 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1297 acpi_object_type type, const union acpi_object **obj); 1298 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1299 const char *name, size_t index, size_t num_args, 1300 struct fwnode_reference_args *args); 1301 1302 static inline int acpi_node_get_property_reference( 1303 const struct fwnode_handle *fwnode, 1304 const char *name, size_t index, 1305 struct fwnode_reference_args *args) 1306 { 1307 return __acpi_node_get_property_reference(fwnode, name, index, 1308 NR_FWNODE_REFERENCE_ARGS, args); 1309 } 1310 1311 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1312 { 1313 return !list_empty(&adev->data.properties); 1314 } 1315 1316 struct acpi_device_properties * 1317 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1318 union acpi_object *properties); 1319 1320 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1321 void **valptr); 1322 1323 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1324 struct fwnode_handle *child); 1325 1326 struct acpi_probe_entry; 1327 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1328 struct acpi_probe_entry *); 1329 1330 #define ACPI_TABLE_ID_LEN 5 1331 1332 /** 1333 * struct acpi_probe_entry - boot-time probing entry 1334 * @id: ACPI table name 1335 * @type: Optional subtable type to match 1336 * (if @id contains subtables) 1337 * @subtable_valid: Optional callback to check the validity of 1338 * the subtable 1339 * @probe_table: Callback to the driver being probed when table 1340 * match is successful 1341 * @probe_subtbl: Callback to the driver being probed when table and 1342 * subtable match (and optional callback is successful) 1343 * @driver_data: Sideband data provided back to the driver 1344 */ 1345 struct acpi_probe_entry { 1346 __u8 id[ACPI_TABLE_ID_LEN]; 1347 __u8 type; 1348 acpi_probe_entry_validate_subtbl subtable_valid; 1349 union { 1350 acpi_tbl_table_handler probe_table; 1351 acpi_tbl_entry_handler probe_subtbl; 1352 }; 1353 kernel_ulong_t driver_data; 1354 }; 1355 1356 void arch_sort_irqchip_probe(struct acpi_probe_entry *ap_head, int nr); 1357 1358 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1359 valid, data, fn) \ 1360 static const struct acpi_probe_entry __acpi_probe_##name \ 1361 __used __section("__" #table "_acpi_probe_table") = { \ 1362 .id = table_id, \ 1363 .type = subtable, \ 1364 .subtable_valid = valid, \ 1365 .probe_table = fn, \ 1366 .driver_data = data, \ 1367 } 1368 1369 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1370 subtable, valid, data, fn) \ 1371 static const struct acpi_probe_entry __acpi_probe_##name \ 1372 __used __section("__" #table "_acpi_probe_table") = { \ 1373 .id = table_id, \ 1374 .type = subtable, \ 1375 .subtable_valid = valid, \ 1376 .probe_subtbl = fn, \ 1377 .driver_data = data, \ 1378 } 1379 1380 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1381 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1382 1383 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1384 1385 #define acpi_probe_device_table(t) \ 1386 ({ \ 1387 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1388 ACPI_PROBE_TABLE_END(t); \ 1389 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1390 (&ACPI_PROBE_TABLE_END(t) - \ 1391 &ACPI_PROBE_TABLE(t))); \ 1392 }) 1393 #else 1394 static inline int acpi_dev_get_property(struct acpi_device *adev, 1395 const char *name, acpi_object_type type, 1396 const union acpi_object **obj) 1397 { 1398 return -ENXIO; 1399 } 1400 1401 static inline int 1402 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1403 const char *name, size_t index, size_t num_args, 1404 struct fwnode_reference_args *args) 1405 { 1406 return -ENXIO; 1407 } 1408 1409 static inline int 1410 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1411 const char *name, size_t index, 1412 struct fwnode_reference_args *args) 1413 { 1414 return -ENXIO; 1415 } 1416 1417 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1418 const char *propname, 1419 void **valptr) 1420 { 1421 return -ENXIO; 1422 } 1423 1424 static inline struct fwnode_handle * 1425 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1426 struct fwnode_handle *child) 1427 { 1428 return NULL; 1429 } 1430 1431 static inline struct fwnode_handle * 1432 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1433 struct fwnode_handle *prev) 1434 { 1435 return ERR_PTR(-ENXIO); 1436 } 1437 1438 static inline int 1439 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1440 struct fwnode_handle **remote, 1441 struct fwnode_handle **port, 1442 struct fwnode_handle **endpoint) 1443 { 1444 return -ENXIO; 1445 } 1446 1447 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1448 static const void * __acpi_table_##name[] \ 1449 __attribute__((unused)) \ 1450 = { (void *) table_id, \ 1451 (void *) subtable, \ 1452 (void *) valid, \ 1453 (void *) fn, \ 1454 (void *) data } 1455 1456 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1457 #endif 1458 1459 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1460 void acpi_table_upgrade(void); 1461 #else 1462 static inline void acpi_table_upgrade(void) { } 1463 #endif 1464 1465 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1466 extern bool acpi_has_watchdog(void); 1467 #else 1468 static inline bool acpi_has_watchdog(void) { return false; } 1469 #endif 1470 1471 #ifdef CONFIG_ACPI_SPCR_TABLE 1472 extern bool qdf2400_e44_present; 1473 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1474 #else 1475 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1476 { 1477 return 0; 1478 } 1479 #endif 1480 1481 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1482 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1483 #else 1484 static inline 1485 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1486 { 1487 return -EINVAL; 1488 } 1489 #endif 1490 1491 #ifdef CONFIG_ACPI_LPIT 1492 int lpit_read_residency_count_address(u64 *address); 1493 #else 1494 static inline int lpit_read_residency_count_address(u64 *address) 1495 { 1496 return -EINVAL; 1497 } 1498 #endif 1499 1500 #ifdef CONFIG_ACPI_PROCESSOR_IDLE 1501 #ifndef arch_get_idle_state_flags 1502 static inline unsigned int arch_get_idle_state_flags(u32 arch_flags) 1503 { 1504 return 0; 1505 } 1506 #endif 1507 #endif /* CONFIG_ACPI_PROCESSOR_IDLE */ 1508 1509 #ifdef CONFIG_ACPI_PPTT 1510 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1511 int find_acpi_cpu_topology(unsigned int cpu, int level); 1512 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1513 int find_acpi_cpu_topology_package(unsigned int cpu); 1514 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1515 #else 1516 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1517 { 1518 return -EINVAL; 1519 } 1520 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1521 { 1522 return -EINVAL; 1523 } 1524 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1525 { 1526 return -EINVAL; 1527 } 1528 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1529 { 1530 return -EINVAL; 1531 } 1532 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1533 { 1534 return -EINVAL; 1535 } 1536 #endif 1537 1538 void acpi_arch_init(void); 1539 1540 #ifdef CONFIG_ACPI_PCC 1541 void acpi_init_pcc(void); 1542 #else 1543 static inline void acpi_init_pcc(void) { } 1544 #endif 1545 1546 #ifdef CONFIG_ACPI_FFH 1547 void acpi_init_ffh(void); 1548 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1549 void **region_ctxt); 1550 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1551 void *region_context); 1552 #else 1553 static inline void acpi_init_ffh(void) { } 1554 #endif 1555 1556 #ifdef CONFIG_ACPI 1557 extern void acpi_device_notify(struct device *dev); 1558 extern void acpi_device_notify_remove(struct device *dev); 1559 #else 1560 static inline void acpi_device_notify(struct device *dev) { } 1561 static inline void acpi_device_notify_remove(struct device *dev) { } 1562 #endif 1563 1564 static inline void acpi_use_parent_companion(struct device *dev) 1565 { 1566 ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent)); 1567 } 1568 1569 #ifdef CONFIG_ACPI_HMAT 1570 int hmat_update_target_coordinates(int nid, struct access_coordinate *coord, 1571 enum access_coordinate_class access); 1572 #else 1573 static inline int hmat_update_target_coordinates(int nid, 1574 struct access_coordinate *coord, 1575 enum access_coordinate_class access) 1576 { 1577 return -EOPNOTSUPP; 1578 } 1579 #endif 1580 1581 #ifdef CONFIG_ACPI_NUMA 1582 bool acpi_node_backed_by_real_pxm(int nid); 1583 #else 1584 static inline bool acpi_node_backed_by_real_pxm(int nid) 1585 { 1586 return false; 1587 } 1588 #endif 1589 1590 #endif /*_LINUX_ACPI_H*/ 1591