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