1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 6 */ 7 8 #ifndef _LINUX_ACPI_H 9 #define _LINUX_ACPI_H 10 11 #include <linux/errno.h> 12 #include <linux/ioport.h> /* for struct resource */ 13 #include <linux/resource_ext.h> 14 #include <linux/device.h> 15 #include <linux/mod_devicetable.h> 16 #include <linux/property.h> 17 #include <linux/uuid.h> 18 19 struct irq_domain; 20 struct irq_domain_ops; 21 22 #ifndef _LINUX 23 #define _LINUX 24 #endif 25 #include <acpi/acpi.h> 26 27 #ifdef CONFIG_ACPI 28 29 #include <linux/list.h> 30 #include <linux/dynamic_debug.h> 31 #include <linux/module.h> 32 #include <linux/mutex.h> 33 34 #include <acpi/acpi_bus.h> 35 #include <acpi/acpi_drivers.h> 36 #include <acpi/acpi_numa.h> 37 #include <acpi/acpi_io.h> 38 #include <asm/acpi.h> 39 40 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 41 { 42 return adev ? adev->handle : NULL; 43 } 44 45 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 46 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 47 acpi_fwnode_handle(adev) : NULL) 48 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 49 #define ACPI_HANDLE_FWNODE(fwnode) \ 50 acpi_device_handle(to_acpi_device_node(fwnode)) 51 52 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 53 { 54 struct fwnode_handle *fwnode; 55 56 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 57 if (!fwnode) 58 return NULL; 59 60 fwnode_init(fwnode, &acpi_static_fwnode_ops); 61 62 return fwnode; 63 } 64 65 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 66 { 67 if (WARN_ON(!is_acpi_static_node(fwnode))) 68 return; 69 70 kfree(fwnode); 71 } 72 73 /** 74 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 75 * the PCI-defined class-code information 76 * 77 * @_cls : the class, subclass, prog-if triple for this device 78 * @_msk : the class mask for this device 79 * 80 * This macro is used to create a struct acpi_device_id that matches a 81 * specific PCI class. The .id and .driver_data fields will be left 82 * initialized with the default value. 83 */ 84 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 85 86 static inline bool has_acpi_companion(struct device *dev) 87 { 88 return is_acpi_device_node(dev->fwnode); 89 } 90 91 static inline void acpi_preset_companion(struct device *dev, 92 struct acpi_device *parent, u64 addr) 93 { 94 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 95 } 96 97 static inline const char *acpi_dev_name(struct acpi_device *adev) 98 { 99 return dev_name(&adev->dev); 100 } 101 102 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 103 104 enum acpi_irq_model_id { 105 ACPI_IRQ_MODEL_PIC = 0, 106 ACPI_IRQ_MODEL_IOAPIC, 107 ACPI_IRQ_MODEL_IOSAPIC, 108 ACPI_IRQ_MODEL_PLATFORM, 109 ACPI_IRQ_MODEL_GIC, 110 ACPI_IRQ_MODEL_LPIC, 111 ACPI_IRQ_MODEL_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 union acpi_subtable_headers { 136 struct acpi_subtable_header common; 137 struct acpi_hmat_structure hmat; 138 struct acpi_prmt_module_header prmt; 139 struct acpi_cedt_header cedt; 140 }; 141 142 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 143 144 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 145 const unsigned long end); 146 147 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 148 void *arg, const unsigned long end); 149 150 /* Debugger support */ 151 152 struct acpi_debugger_ops { 153 int (*create_thread)(acpi_osd_exec_callback function, void *context); 154 ssize_t (*write_log)(const char *msg); 155 ssize_t (*read_cmd)(char *buffer, size_t length); 156 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 157 int (*notify_command_complete)(void); 158 }; 159 160 struct acpi_debugger { 161 const struct acpi_debugger_ops *ops; 162 struct module *owner; 163 struct mutex lock; 164 }; 165 166 #ifdef CONFIG_ACPI_DEBUGGER 167 int __init acpi_debugger_init(void); 168 int acpi_register_debugger(struct module *owner, 169 const struct acpi_debugger_ops *ops); 170 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 171 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 172 ssize_t acpi_debugger_write_log(const char *msg); 173 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 174 int acpi_debugger_wait_command_ready(void); 175 int acpi_debugger_notify_command_complete(void); 176 #else 177 static inline int acpi_debugger_init(void) 178 { 179 return -ENODEV; 180 } 181 182 static inline int acpi_register_debugger(struct module *owner, 183 const struct acpi_debugger_ops *ops) 184 { 185 return -ENODEV; 186 } 187 188 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 189 { 190 } 191 192 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 193 void *context) 194 { 195 return -ENODEV; 196 } 197 198 static inline int acpi_debugger_write_log(const char *msg) 199 { 200 return -ENODEV; 201 } 202 203 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 204 { 205 return -ENODEV; 206 } 207 208 static inline int acpi_debugger_wait_command_ready(void) 209 { 210 return -ENODEV; 211 } 212 213 static inline int acpi_debugger_notify_command_complete(void) 214 { 215 return -ENODEV; 216 } 217 #endif 218 219 #define BAD_MADT_ENTRY(entry, end) ( \ 220 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 221 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 222 223 struct acpi_subtable_proc { 224 int id; 225 acpi_tbl_entry_handler handler; 226 acpi_tbl_entry_handler_arg handler_arg; 227 void *arg; 228 int count; 229 }; 230 231 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 232 void __acpi_unmap_table(void __iomem *map, unsigned long size); 233 int early_acpi_boot_init(void); 234 int acpi_boot_init (void); 235 void acpi_boot_table_prepare (void); 236 void acpi_boot_table_init (void); 237 int acpi_mps_check (void); 238 int acpi_numa_init (void); 239 240 int acpi_locate_initial_tables (void); 241 void acpi_reserve_initial_tables (void); 242 void acpi_table_init_complete (void); 243 int acpi_table_init (void); 244 245 #ifdef CONFIG_ACPI_TABLE_LIB 246 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 247 #define __init_or_acpilib 248 #define __initdata_or_acpilib 249 #else 250 #define EXPORT_SYMBOL_ACPI_LIB(x) 251 #define __init_or_acpilib __init 252 #define __initdata_or_acpilib __initdata 253 #endif 254 255 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 256 int __init_or_acpilib acpi_table_parse_entries(char *id, 257 unsigned long table_size, int entry_id, 258 acpi_tbl_entry_handler handler, unsigned int max_entries); 259 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 260 unsigned long table_size, struct acpi_subtable_proc *proc, 261 int proc_num, unsigned int max_entries); 262 int acpi_table_parse_madt(enum acpi_madt_type id, 263 acpi_tbl_entry_handler handler, 264 unsigned int max_entries); 265 int __init_or_acpilib 266 acpi_table_parse_cedt(enum acpi_cedt_type id, 267 acpi_tbl_entry_handler_arg handler_arg, void *arg); 268 269 int acpi_parse_mcfg (struct acpi_table_header *header); 270 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 271 272 /* the following numa functions are architecture-dependent */ 273 void acpi_numa_slit_init (struct acpi_table_slit *slit); 274 275 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 276 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 277 #else 278 static inline void 279 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 280 #endif 281 282 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 283 284 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 285 void acpi_arch_dma_setup(struct device *dev); 286 #else 287 static inline void acpi_arch_dma_setup(struct device *dev) { } 288 #endif 289 290 #ifdef CONFIG_ARM64 291 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 292 #else 293 static inline void 294 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 295 #endif 296 297 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 298 299 #ifndef PHYS_CPUID_INVALID 300 typedef u32 phys_cpuid_t; 301 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 302 #endif 303 304 static inline bool invalid_logical_cpuid(u32 cpuid) 305 { 306 return (int)cpuid < 0; 307 } 308 309 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 310 { 311 return phys_id == PHYS_CPUID_INVALID; 312 } 313 314 /* Validate the processor object's proc_id */ 315 bool acpi_duplicate_processor_id(int proc_id); 316 /* Processor _CTS control */ 317 struct acpi_processor_power; 318 319 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 320 bool acpi_processor_claim_cst_control(void); 321 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 322 struct acpi_processor_power *info); 323 #else 324 static inline bool acpi_processor_claim_cst_control(void) { return false; } 325 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 326 struct acpi_processor_power *info) 327 { 328 return -ENODEV; 329 } 330 #endif 331 332 #ifdef CONFIG_ACPI_HOTPLUG_CPU 333 /* Arch dependent functions for cpu hotplug support */ 334 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 335 int *pcpu); 336 int acpi_unmap_cpu(int cpu); 337 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 338 339 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 340 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 341 #endif 342 343 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 344 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 345 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 346 void acpi_irq_stats_init(void); 347 extern u32 acpi_irq_handled; 348 extern u32 acpi_irq_not_handled; 349 extern unsigned int acpi_sci_irq; 350 extern bool acpi_no_s5; 351 #define INVALID_ACPI_IRQ ((unsigned)-1) 352 static inline bool acpi_sci_irq_valid(void) 353 { 354 return acpi_sci_irq != INVALID_ACPI_IRQ; 355 } 356 357 extern int sbf_port; 358 extern unsigned long acpi_realmode_flags; 359 360 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 361 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 362 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 363 364 void acpi_set_irq_model(enum acpi_irq_model_id model, 365 struct fwnode_handle *(*)(u32)); 366 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 367 368 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 369 unsigned int size, 370 struct fwnode_handle *fwnode, 371 const struct irq_domain_ops *ops, 372 void *host_data); 373 374 #ifdef CONFIG_X86_IO_APIC 375 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 376 #else 377 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 378 { 379 return -1; 380 } 381 #endif 382 /* 383 * This function undoes the effect of one call to acpi_register_gsi(). 384 * If this matches the last registration, any IRQ resources for gsi 385 * are freed. 386 */ 387 void acpi_unregister_gsi (u32 gsi); 388 389 struct pci_dev; 390 391 int acpi_pci_irq_enable (struct pci_dev *dev); 392 void acpi_penalize_isa_irq(int irq, int active); 393 bool acpi_isa_irq_available(int irq); 394 #ifdef CONFIG_PCI 395 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 396 #else 397 static inline void acpi_penalize_sci_irq(int irq, int trigger, 398 int polarity) 399 { 400 } 401 #endif 402 void acpi_pci_irq_disable (struct pci_dev *dev); 403 404 extern int ec_read(u8 addr, u8 *val); 405 extern int ec_write(u8 addr, u8 val); 406 extern int ec_transaction(u8 command, 407 const u8 *wdata, unsigned wdata_len, 408 u8 *rdata, unsigned rdata_len); 409 extern acpi_handle ec_get_handle(void); 410 411 extern bool acpi_is_pnp_device(struct acpi_device *); 412 413 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 414 415 typedef void (*wmi_notify_handler) (u32 value, void *context); 416 417 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 418 u32 method_id, 419 const struct acpi_buffer *in, 420 struct acpi_buffer *out); 421 extern acpi_status wmi_query_block(const char *guid, u8 instance, 422 struct acpi_buffer *out); 423 extern acpi_status wmi_set_block(const char *guid, u8 instance, 424 const struct acpi_buffer *in); 425 extern acpi_status wmi_install_notify_handler(const char *guid, 426 wmi_notify_handler handler, void *data); 427 extern acpi_status wmi_remove_notify_handler(const char *guid); 428 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 429 extern bool wmi_has_guid(const char *guid); 430 extern char *wmi_get_acpi_device_uid(const char *guid); 431 432 #endif /* CONFIG_ACPI_WMI */ 433 434 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 435 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 436 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 437 #define ACPI_VIDEO_BACKLIGHT 0x0008 438 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 439 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 440 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 441 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 442 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 443 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 444 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 445 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 446 447 extern char acpi_video_backlight_string[]; 448 extern long acpi_is_video_device(acpi_handle handle); 449 extern int acpi_blacklisted(void); 450 extern void acpi_osi_setup(char *str); 451 extern bool acpi_osi_is_win8(void); 452 453 #ifdef CONFIG_ACPI_NUMA 454 int acpi_map_pxm_to_node(int pxm); 455 int acpi_get_node(acpi_handle handle); 456 457 /** 458 * pxm_to_online_node - Map proximity ID to online node 459 * @pxm: ACPI proximity ID 460 * 461 * This is similar to pxm_to_node(), but always returns an online 462 * node. When the mapped node from a given proximity ID is offline, it 463 * looks up the node distance table and returns the nearest online node. 464 * 465 * ACPI device drivers, which are called after the NUMA initialization has 466 * completed in the kernel, can call this interface to obtain their device 467 * NUMA topology from ACPI tables. Such drivers do not have to deal with 468 * offline nodes. A node may be offline when SRAT memory entry does not exist, 469 * or NUMA is disabled, ex. "numa=off" on x86. 470 */ 471 static inline int pxm_to_online_node(int pxm) 472 { 473 int node = pxm_to_node(pxm); 474 475 return numa_map_to_online_node(node); 476 } 477 #else 478 static inline int pxm_to_online_node(int pxm) 479 { 480 return 0; 481 } 482 static inline int acpi_map_pxm_to_node(int pxm) 483 { 484 return 0; 485 } 486 static inline int acpi_get_node(acpi_handle handle) 487 { 488 return 0; 489 } 490 #endif 491 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 492 493 extern int pnpacpi_disabled; 494 495 #define PXM_INVAL (-1) 496 497 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 498 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 499 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 500 struct resource_win *win); 501 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 502 struct resource_win *win); 503 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 504 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 505 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 506 struct resource *res); 507 508 void acpi_dev_free_resource_list(struct list_head *list); 509 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 510 int (*preproc)(struct acpi_resource *, void *), 511 void *preproc_data); 512 int acpi_dev_get_dma_resources(struct acpi_device *adev, 513 struct list_head *list); 514 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 515 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 516 unsigned long types); 517 518 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 519 void *arg) 520 { 521 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 522 } 523 524 struct acpi_device *acpi_resource_consumer(struct resource *res); 525 526 int acpi_check_resource_conflict(const struct resource *res); 527 528 int acpi_check_region(resource_size_t start, resource_size_t n, 529 const char *name); 530 531 int acpi_resources_are_enforced(void); 532 533 #ifdef CONFIG_HIBERNATION 534 extern int acpi_check_s4_hw_signature; 535 #endif 536 537 #ifdef CONFIG_PM_SLEEP 538 void __init acpi_old_suspend_ordering(void); 539 void __init acpi_nvs_nosave(void); 540 void __init acpi_nvs_nosave_s3(void); 541 void __init acpi_sleep_no_blacklist(void); 542 #endif /* CONFIG_PM_SLEEP */ 543 544 int acpi_register_wakeup_handler( 545 int wake_irq, bool (*wakeup)(void *context), void *context); 546 void acpi_unregister_wakeup_handler( 547 bool (*wakeup)(void *context), void *context); 548 549 struct acpi_osc_context { 550 char *uuid_str; /* UUID string */ 551 int rev; 552 struct acpi_buffer cap; /* list of DWORD capabilities */ 553 struct acpi_buffer ret; /* free by caller if success */ 554 }; 555 556 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 557 558 /* Number of _OSC capability DWORDS depends on bridge type */ 559 #define OSC_PCI_CAPABILITY_DWORDS 3 560 #define OSC_CXL_CAPABILITY_DWORDS 5 561 562 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 563 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 564 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 565 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 566 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 567 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 568 569 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 570 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 571 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 572 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 573 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 574 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 575 576 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 577 #define OSC_SB_PAD_SUPPORT 0x00000001 578 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 579 #define OSC_SB_PR3_SUPPORT 0x00000004 580 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 581 #define OSC_SB_APEI_SUPPORT 0x00000010 582 #define OSC_SB_CPC_SUPPORT 0x00000020 583 #define OSC_SB_CPCV2_SUPPORT 0x00000040 584 #define OSC_SB_PCLPI_SUPPORT 0x00000080 585 #define OSC_SB_OSLPI_SUPPORT 0x00000100 586 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 587 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 588 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 589 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 590 #define OSC_SB_PRM_SUPPORT 0x00200000 591 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 592 593 extern bool osc_sb_apei_support_acked; 594 extern bool osc_pc_lpi_support_confirmed; 595 extern bool osc_sb_native_usb4_support_confirmed; 596 extern bool osc_sb_cppc2_support_acked; 597 extern bool osc_cpc_flexible_adr_space_confirmed; 598 599 /* USB4 Capabilities */ 600 #define OSC_USB_USB3_TUNNELING 0x00000001 601 #define OSC_USB_DP_TUNNELING 0x00000002 602 #define OSC_USB_PCIE_TUNNELING 0x00000004 603 #define OSC_USB_XDOMAIN 0x00000008 604 605 extern u32 osc_sb_native_usb4_control; 606 607 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 608 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 609 #define OSC_PCI_ASPM_SUPPORT 0x00000002 610 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 611 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 612 #define OSC_PCI_MSI_SUPPORT 0x00000010 613 #define OSC_PCI_EDR_SUPPORT 0x00000080 614 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 615 616 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 617 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 618 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 619 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 620 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 621 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 622 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 623 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 624 625 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 626 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 627 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 628 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 629 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 630 631 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 632 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 633 634 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 635 { 636 u32 *ret = context->ret.pointer; 637 638 return ret[OSC_CONTROL_DWORD]; 639 } 640 641 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 642 { 643 u32 *ret = context->ret.pointer; 644 645 return ret[OSC_EXT_CONTROL_DWORD]; 646 } 647 648 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 649 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 650 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 651 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 652 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 653 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 654 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 655 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 656 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 657 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 658 659 /* Enable _OST when all relevant hotplug operations are enabled */ 660 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 661 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 662 defined(CONFIG_ACPI_CONTAINER) 663 #define ACPI_HOTPLUG_OST 664 #endif 665 666 /* _OST Source Event Code (OSPM Action) */ 667 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 668 #define ACPI_OST_EC_OSPM_EJECT 0x103 669 #define ACPI_OST_EC_OSPM_INSERTION 0x200 670 671 /* _OST General Processing Status Code */ 672 #define ACPI_OST_SC_SUCCESS 0x0 673 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 674 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 675 676 /* _OST OS Shutdown Processing (0x100) Status Code */ 677 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 678 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 679 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 680 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 681 682 /* _OST Ejection Request (0x3, 0x103) Status Code */ 683 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 684 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 685 #define ACPI_OST_SC_DEVICE_BUSY 0x82 686 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 687 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 688 689 /* _OST Insertion Request (0x200) Status Code */ 690 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 691 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 692 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 693 694 enum acpi_predicate { 695 all_versions, 696 less_than_or_equal, 697 equal, 698 greater_than_or_equal, 699 }; 700 701 /* Table must be terminted by a NULL entry */ 702 struct acpi_platform_list { 703 char oem_id[ACPI_OEM_ID_SIZE+1]; 704 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 705 u32 oem_revision; 706 char *table; 707 enum acpi_predicate pred; 708 char *reason; 709 u32 data; 710 }; 711 int acpi_match_platform_list(const struct acpi_platform_list *plat); 712 713 extern void acpi_early_init(void); 714 extern void acpi_subsystem_init(void); 715 extern void arch_post_acpi_subsys_init(void); 716 717 extern int acpi_nvs_register(__u64 start, __u64 size); 718 719 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 720 void *data); 721 722 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 723 const struct device *dev); 724 725 const void *acpi_device_get_match_data(const struct device *dev); 726 extern bool acpi_driver_match_device(struct device *dev, 727 const struct device_driver *drv); 728 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *); 729 int acpi_device_modalias(struct device *, char *, int); 730 731 struct platform_device *acpi_create_platform_device(struct acpi_device *, 732 const struct property_entry *); 733 #define ACPI_PTR(_ptr) (_ptr) 734 735 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 736 { 737 adev->flags.visited = true; 738 } 739 740 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 741 { 742 adev->flags.visited = false; 743 } 744 745 enum acpi_reconfig_event { 746 ACPI_RECONFIG_DEVICE_ADD = 0, 747 ACPI_RECONFIG_DEVICE_REMOVE, 748 }; 749 750 int acpi_reconfig_notifier_register(struct notifier_block *nb); 751 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 752 753 #ifdef CONFIG_ACPI_GTDT 754 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 755 int acpi_gtdt_map_ppi(int type); 756 bool acpi_gtdt_c3stop(int type); 757 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 758 #endif 759 760 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 761 static inline void acpi_arch_set_root_pointer(u64 addr) 762 { 763 } 764 #endif 765 766 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 767 static inline u64 acpi_arch_get_root_pointer(void) 768 { 769 return 0; 770 } 771 #endif 772 773 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 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 785 786 #include <acpi/acpi_numa.h> 787 788 struct fwnode_handle; 789 790 static inline bool acpi_dev_found(const char *hid) 791 { 792 return false; 793 } 794 795 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 796 { 797 return false; 798 } 799 800 struct acpi_device; 801 802 static inline bool 803 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 804 { 805 return false; 806 } 807 808 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 809 { 810 return -ENODEV; 811 } 812 813 static inline struct acpi_device * 814 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 815 { 816 return NULL; 817 } 818 819 static inline bool acpi_reduced_hardware(void) 820 { 821 return false; 822 } 823 824 static inline void acpi_dev_put(struct acpi_device *adev) {} 825 826 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 827 { 828 return false; 829 } 830 831 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 832 { 833 return false; 834 } 835 836 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 837 { 838 return NULL; 839 } 840 841 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 842 { 843 return false; 844 } 845 846 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 847 { 848 return NULL; 849 } 850 851 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 852 const char *name) 853 { 854 return false; 855 } 856 857 static inline struct fwnode_handle *acpi_fwnode_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_device( 939 const struct acpi_device_id *ids, const struct device *dev) 940 { 941 return NULL; 942 } 943 944 static inline const void *acpi_device_get_match_data(const struct device *dev) 945 { 946 return NULL; 947 } 948 949 static inline bool acpi_driver_match_device(struct device *dev, 950 const struct device_driver *drv) 951 { 952 return false; 953 } 954 955 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 956 u64 rev, u64 funcs) 957 { 958 return false; 959 } 960 961 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 962 const guid_t *guid, 963 u64 rev, u64 func, 964 union acpi_object *argv4) 965 { 966 return NULL; 967 } 968 969 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 970 const guid_t *guid, 971 u64 rev, u64 func, 972 union acpi_object *argv4, 973 acpi_object_type type) 974 { 975 return NULL; 976 } 977 978 static inline int acpi_device_uevent_modalias(const struct device *dev, 979 struct kobj_uevent_env *env) 980 { 981 return -ENODEV; 982 } 983 984 static inline int acpi_device_modalias(struct device *dev, 985 char *buf, int size) 986 { 987 return -ENODEV; 988 } 989 990 static inline struct platform_device * 991 acpi_create_platform_device(struct acpi_device *adev, 992 const struct property_entry *properties) 993 { 994 return NULL; 995 } 996 997 static inline bool acpi_dma_supported(const struct acpi_device *adev) 998 { 999 return false; 1000 } 1001 1002 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 1003 { 1004 return DEV_DMA_NOT_SUPPORTED; 1005 } 1006 1007 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 1008 { 1009 return -ENODEV; 1010 } 1011 1012 static inline int acpi_dma_configure(struct device *dev, 1013 enum dev_dma_attr attr) 1014 { 1015 return 0; 1016 } 1017 1018 static inline int acpi_dma_configure_id(struct device *dev, 1019 enum dev_dma_attr attr, 1020 const u32 *input_id) 1021 { 1022 return 0; 1023 } 1024 1025 #define ACPI_PTR(_ptr) (NULL) 1026 1027 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1028 { 1029 } 1030 1031 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1032 { 1033 } 1034 1035 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1036 { 1037 return -EINVAL; 1038 } 1039 1040 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1041 { 1042 return -EINVAL; 1043 } 1044 1045 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1046 { 1047 return NULL; 1048 } 1049 1050 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1051 { 1052 return -ENODEV; 1053 } 1054 1055 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1056 { 1057 return ERR_PTR(-ENODEV); 1058 } 1059 1060 static inline int acpi_register_wakeup_handler(int wake_irq, 1061 bool (*wakeup)(void *context), void *context) 1062 { 1063 return -ENXIO; 1064 } 1065 1066 static inline void acpi_unregister_wakeup_handler( 1067 bool (*wakeup)(void *context), void *context) { } 1068 1069 struct acpi_osc_context; 1070 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1071 { 1072 return 0; 1073 } 1074 1075 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1076 { 1077 return 0; 1078 } 1079 1080 static inline bool acpi_sleep_state_supported(u8 sleep_state) 1081 { 1082 return false; 1083 } 1084 1085 #endif /* !CONFIG_ACPI */ 1086 1087 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1088 int acpi_ioapic_add(acpi_handle root); 1089 #else 1090 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1091 #endif 1092 1093 #ifdef CONFIG_ACPI 1094 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1095 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1096 1097 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1098 u32 pm1a_control, u32 pm1b_control); 1099 1100 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1101 u32 val_a, u32 val_b)); 1102 1103 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1104 u32 val_a, u32 val_b); 1105 #ifdef CONFIG_X86 1106 struct acpi_s2idle_dev_ops { 1107 struct list_head list_node; 1108 void (*prepare)(void); 1109 void (*check)(void); 1110 void (*restore)(void); 1111 }; 1112 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1113 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1114 #endif /* CONFIG_X86 */ 1115 #ifndef CONFIG_IA64 1116 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1117 #else 1118 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1119 size_t size) 1120 { 1121 } 1122 #endif /* CONFIG_X86 */ 1123 #else 1124 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1125 #endif 1126 1127 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1128 int acpi_dev_suspend(struct device *dev, bool wakeup); 1129 int acpi_dev_resume(struct device *dev); 1130 int acpi_subsys_runtime_suspend(struct device *dev); 1131 int acpi_subsys_runtime_resume(struct device *dev); 1132 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1133 bool acpi_storage_d3(struct device *dev); 1134 bool acpi_dev_state_d0(struct device *dev); 1135 #else 1136 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1137 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1138 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1139 { 1140 return 0; 1141 } 1142 static inline bool acpi_storage_d3(struct device *dev) 1143 { 1144 return false; 1145 } 1146 static inline bool acpi_dev_state_d0(struct device *dev) 1147 { 1148 return true; 1149 } 1150 #endif 1151 1152 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1153 int acpi_subsys_prepare(struct device *dev); 1154 void acpi_subsys_complete(struct device *dev); 1155 int acpi_subsys_suspend_late(struct device *dev); 1156 int acpi_subsys_suspend_noirq(struct device *dev); 1157 int acpi_subsys_suspend(struct device *dev); 1158 int acpi_subsys_freeze(struct device *dev); 1159 int acpi_subsys_poweroff(struct device *dev); 1160 void acpi_ec_mark_gpe_for_wake(void); 1161 void acpi_ec_set_gpe_wake_mask(u8 action); 1162 int acpi_subsys_restore_early(struct device *dev); 1163 #else 1164 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1165 static inline void acpi_subsys_complete(struct device *dev) {} 1166 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1167 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1168 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1169 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1170 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1171 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1172 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1173 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1174 #endif 1175 1176 #ifdef CONFIG_ACPI 1177 __printf(3, 4) 1178 void acpi_handle_printk(const char *level, acpi_handle handle, 1179 const char *fmt, ...); 1180 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1181 acpi_status status); 1182 #else /* !CONFIG_ACPI */ 1183 static inline __printf(3, 4) void 1184 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1185 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1186 const char *name, 1187 acpi_status status) {} 1188 #endif /* !CONFIG_ACPI */ 1189 1190 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1191 __printf(3, 4) 1192 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1193 #endif 1194 1195 /* 1196 * acpi_handle_<level>: Print message with ACPI prefix and object path 1197 * 1198 * These interfaces acquire the global namespace mutex to obtain an object 1199 * path. In interrupt context, it shows the object path as <n/a>. 1200 */ 1201 #define acpi_handle_emerg(handle, fmt, ...) \ 1202 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1203 #define acpi_handle_alert(handle, fmt, ...) \ 1204 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1205 #define acpi_handle_crit(handle, fmt, ...) \ 1206 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1207 #define acpi_handle_err(handle, fmt, ...) \ 1208 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1209 #define acpi_handle_warn(handle, fmt, ...) \ 1210 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1211 #define acpi_handle_notice(handle, fmt, ...) \ 1212 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1213 #define acpi_handle_info(handle, fmt, ...) \ 1214 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1215 1216 #if defined(DEBUG) 1217 #define acpi_handle_debug(handle, fmt, ...) \ 1218 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1219 #else 1220 #if defined(CONFIG_DYNAMIC_DEBUG) 1221 #define acpi_handle_debug(handle, fmt, ...) \ 1222 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1223 handle, pr_fmt(fmt), ##__VA_ARGS__) 1224 #else 1225 #define acpi_handle_debug(handle, fmt, ...) \ 1226 ({ \ 1227 if (0) \ 1228 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1229 0; \ 1230 }) 1231 #endif 1232 #endif 1233 1234 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1235 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1236 struct acpi_resource_gpio **agpio); 1237 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1238 struct acpi_resource_gpio **agpio); 1239 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1240 bool *wake_capable); 1241 #else 1242 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1243 struct acpi_resource_gpio **agpio) 1244 { 1245 return false; 1246 } 1247 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1248 struct acpi_resource_gpio **agpio) 1249 { 1250 return false; 1251 } 1252 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1253 int index, bool *wake_capable) 1254 { 1255 return -ENXIO; 1256 } 1257 #endif 1258 1259 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1260 bool *wake_capable) 1261 { 1262 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1263 } 1264 1265 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1266 int index) 1267 { 1268 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1269 } 1270 1271 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1272 { 1273 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1274 } 1275 1276 /* Device properties */ 1277 1278 #ifdef CONFIG_ACPI 1279 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1280 acpi_object_type type, const union acpi_object **obj); 1281 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1282 const char *name, size_t index, size_t num_args, 1283 struct fwnode_reference_args *args); 1284 1285 static inline int acpi_node_get_property_reference( 1286 const struct fwnode_handle *fwnode, 1287 const char *name, size_t index, 1288 struct fwnode_reference_args *args) 1289 { 1290 return __acpi_node_get_property_reference(fwnode, name, index, 1291 NR_FWNODE_REFERENCE_ARGS, args); 1292 } 1293 1294 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1295 { 1296 return !list_empty(&adev->data.properties); 1297 } 1298 1299 struct acpi_device_properties * 1300 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1301 union acpi_object *properties); 1302 1303 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1304 void **valptr); 1305 1306 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1307 struct fwnode_handle *child); 1308 1309 struct acpi_probe_entry; 1310 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1311 struct acpi_probe_entry *); 1312 1313 #define ACPI_TABLE_ID_LEN 5 1314 1315 /** 1316 * struct acpi_probe_entry - boot-time probing entry 1317 * @id: ACPI table name 1318 * @type: Optional subtable type to match 1319 * (if @id contains subtables) 1320 * @subtable_valid: Optional callback to check the validity of 1321 * the subtable 1322 * @probe_table: Callback to the driver being probed when table 1323 * match is successful 1324 * @probe_subtbl: Callback to the driver being probed when table and 1325 * subtable match (and optional callback is successful) 1326 * @driver_data: Sideband data provided back to the driver 1327 */ 1328 struct acpi_probe_entry { 1329 __u8 id[ACPI_TABLE_ID_LEN]; 1330 __u8 type; 1331 acpi_probe_entry_validate_subtbl subtable_valid; 1332 union { 1333 acpi_tbl_table_handler probe_table; 1334 acpi_tbl_entry_handler probe_subtbl; 1335 }; 1336 kernel_ulong_t driver_data; 1337 }; 1338 1339 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1340 valid, data, fn) \ 1341 static const struct acpi_probe_entry __acpi_probe_##name \ 1342 __used __section("__" #table "_acpi_probe_table") = { \ 1343 .id = table_id, \ 1344 .type = subtable, \ 1345 .subtable_valid = valid, \ 1346 .probe_table = fn, \ 1347 .driver_data = data, \ 1348 } 1349 1350 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1351 subtable, valid, data, fn) \ 1352 static const struct acpi_probe_entry __acpi_probe_##name \ 1353 __used __section("__" #table "_acpi_probe_table") = { \ 1354 .id = table_id, \ 1355 .type = subtable, \ 1356 .subtable_valid = valid, \ 1357 .probe_subtbl = fn, \ 1358 .driver_data = data, \ 1359 } 1360 1361 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1362 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1363 1364 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1365 1366 #define acpi_probe_device_table(t) \ 1367 ({ \ 1368 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1369 ACPI_PROBE_TABLE_END(t); \ 1370 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1371 (&ACPI_PROBE_TABLE_END(t) - \ 1372 &ACPI_PROBE_TABLE(t))); \ 1373 }) 1374 #else 1375 static inline int acpi_dev_get_property(struct acpi_device *adev, 1376 const char *name, acpi_object_type type, 1377 const union acpi_object **obj) 1378 { 1379 return -ENXIO; 1380 } 1381 1382 static inline int 1383 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1384 const char *name, size_t index, size_t num_args, 1385 struct fwnode_reference_args *args) 1386 { 1387 return -ENXIO; 1388 } 1389 1390 static inline int 1391 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1392 const char *name, size_t index, 1393 struct fwnode_reference_args *args) 1394 { 1395 return -ENXIO; 1396 } 1397 1398 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1399 const char *propname, 1400 void **valptr) 1401 { 1402 return -ENXIO; 1403 } 1404 1405 static inline struct fwnode_handle * 1406 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1407 struct fwnode_handle *child) 1408 { 1409 return NULL; 1410 } 1411 1412 static inline struct fwnode_handle * 1413 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1414 struct fwnode_handle *prev) 1415 { 1416 return ERR_PTR(-ENXIO); 1417 } 1418 1419 static inline int 1420 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1421 struct fwnode_handle **remote, 1422 struct fwnode_handle **port, 1423 struct fwnode_handle **endpoint) 1424 { 1425 return -ENXIO; 1426 } 1427 1428 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1429 static const void * __acpi_table_##name[] \ 1430 __attribute__((unused)) \ 1431 = { (void *) table_id, \ 1432 (void *) subtable, \ 1433 (void *) valid, \ 1434 (void *) fn, \ 1435 (void *) data } 1436 1437 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1438 #endif 1439 1440 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1441 void acpi_table_upgrade(void); 1442 #else 1443 static inline void acpi_table_upgrade(void) { } 1444 #endif 1445 1446 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1447 extern bool acpi_has_watchdog(void); 1448 #else 1449 static inline bool acpi_has_watchdog(void) { return false; } 1450 #endif 1451 1452 #ifdef CONFIG_ACPI_SPCR_TABLE 1453 extern bool qdf2400_e44_present; 1454 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1455 #else 1456 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1457 { 1458 return 0; 1459 } 1460 #endif 1461 1462 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1463 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1464 #else 1465 static inline 1466 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1467 { 1468 return -EINVAL; 1469 } 1470 #endif 1471 1472 #ifdef CONFIG_ACPI_LPIT 1473 int lpit_read_residency_count_address(u64 *address); 1474 #else 1475 static inline int lpit_read_residency_count_address(u64 *address) 1476 { 1477 return -EINVAL; 1478 } 1479 #endif 1480 1481 #ifdef CONFIG_ACPI_PPTT 1482 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1483 int find_acpi_cpu_topology(unsigned int cpu, int level); 1484 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1485 int find_acpi_cpu_topology_package(unsigned int cpu); 1486 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1487 #else 1488 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1489 { 1490 return -EINVAL; 1491 } 1492 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1493 { 1494 return -EINVAL; 1495 } 1496 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1497 { 1498 return -EINVAL; 1499 } 1500 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1501 { 1502 return -EINVAL; 1503 } 1504 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1505 { 1506 return -EINVAL; 1507 } 1508 #endif 1509 1510 #ifdef CONFIG_ACPI_PCC 1511 void acpi_init_pcc(void); 1512 #else 1513 static inline void acpi_init_pcc(void) { } 1514 #endif 1515 1516 #ifdef CONFIG_ACPI_FFH 1517 void acpi_init_ffh(void); 1518 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1519 void **region_ctxt); 1520 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1521 void *region_context); 1522 #else 1523 static inline void acpi_init_ffh(void) { } 1524 #endif 1525 1526 #ifdef CONFIG_ACPI 1527 extern void acpi_device_notify(struct device *dev); 1528 extern void acpi_device_notify_remove(struct device *dev); 1529 #else 1530 static inline void acpi_device_notify(struct device *dev) { } 1531 static inline void acpi_device_notify_remove(struct device *dev) { } 1532 #endif 1533 1534 #endif /*_LINUX_ACPI_H*/ 1535