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 }; 137 138 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 139 140 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 141 const unsigned long end); 142 143 /* Debugger support */ 144 145 struct acpi_debugger_ops { 146 int (*create_thread)(acpi_osd_exec_callback function, void *context); 147 ssize_t (*write_log)(const char *msg); 148 ssize_t (*read_cmd)(char *buffer, size_t length); 149 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 150 int (*notify_command_complete)(void); 151 }; 152 153 struct acpi_debugger { 154 const struct acpi_debugger_ops *ops; 155 struct module *owner; 156 struct mutex lock; 157 }; 158 159 #ifdef CONFIG_ACPI_DEBUGGER 160 int __init acpi_debugger_init(void); 161 int acpi_register_debugger(struct module *owner, 162 const struct acpi_debugger_ops *ops); 163 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 164 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 165 ssize_t acpi_debugger_write_log(const char *msg); 166 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 167 int acpi_debugger_wait_command_ready(void); 168 int acpi_debugger_notify_command_complete(void); 169 #else 170 static inline int acpi_debugger_init(void) 171 { 172 return -ENODEV; 173 } 174 175 static inline int acpi_register_debugger(struct module *owner, 176 const struct acpi_debugger_ops *ops) 177 { 178 return -ENODEV; 179 } 180 181 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 182 { 183 } 184 185 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 186 void *context) 187 { 188 return -ENODEV; 189 } 190 191 static inline int acpi_debugger_write_log(const char *msg) 192 { 193 return -ENODEV; 194 } 195 196 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 197 { 198 return -ENODEV; 199 } 200 201 static inline int acpi_debugger_wait_command_ready(void) 202 { 203 return -ENODEV; 204 } 205 206 static inline int acpi_debugger_notify_command_complete(void) 207 { 208 return -ENODEV; 209 } 210 #endif 211 212 #define BAD_MADT_ENTRY(entry, end) ( \ 213 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 214 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 215 216 struct acpi_subtable_proc { 217 int id; 218 acpi_tbl_entry_handler handler; 219 int count; 220 }; 221 222 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 223 void __acpi_unmap_table(void __iomem *map, unsigned long size); 224 int early_acpi_boot_init(void); 225 int acpi_boot_init (void); 226 void acpi_boot_table_prepare (void); 227 void acpi_boot_table_init (void); 228 int acpi_mps_check (void); 229 int acpi_numa_init (void); 230 231 int acpi_locate_initial_tables (void); 232 void acpi_reserve_initial_tables (void); 233 void acpi_table_init_complete (void); 234 int acpi_table_init (void); 235 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 236 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 237 int entry_id, 238 acpi_tbl_entry_handler handler, 239 unsigned int max_entries); 240 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 241 struct acpi_subtable_proc *proc, int proc_num, 242 unsigned int max_entries); 243 int acpi_table_parse_madt(enum acpi_madt_type id, 244 acpi_tbl_entry_handler handler, 245 unsigned int max_entries); 246 int acpi_parse_mcfg (struct acpi_table_header *header); 247 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 248 249 /* the following numa functions are architecture-dependent */ 250 void acpi_numa_slit_init (struct acpi_table_slit *slit); 251 252 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 253 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 254 #else 255 static inline void 256 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 257 #endif 258 259 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 260 261 #ifdef CONFIG_ARM64 262 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 263 void acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size); 264 #else 265 static inline void 266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 267 static inline void 268 acpi_arch_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) { } 269 #endif 270 271 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 272 273 #ifndef PHYS_CPUID_INVALID 274 typedef u32 phys_cpuid_t; 275 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 276 #endif 277 278 static inline bool invalid_logical_cpuid(u32 cpuid) 279 { 280 return (int)cpuid < 0; 281 } 282 283 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 284 { 285 return phys_id == PHYS_CPUID_INVALID; 286 } 287 288 /* Validate the processor object's proc_id */ 289 bool acpi_duplicate_processor_id(int proc_id); 290 /* Processor _CTS control */ 291 struct acpi_processor_power; 292 293 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 294 bool acpi_processor_claim_cst_control(void); 295 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 296 struct acpi_processor_power *info); 297 #else 298 static inline bool acpi_processor_claim_cst_control(void) { return false; } 299 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 300 struct acpi_processor_power *info) 301 { 302 return -ENODEV; 303 } 304 #endif 305 306 #ifdef CONFIG_ACPI_HOTPLUG_CPU 307 /* Arch dependent functions for cpu hotplug support */ 308 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 309 int *pcpu); 310 int acpi_unmap_cpu(int cpu); 311 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 312 313 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 314 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 315 #endif 316 317 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 318 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 319 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 320 void acpi_irq_stats_init(void); 321 extern u32 acpi_irq_handled; 322 extern u32 acpi_irq_not_handled; 323 extern unsigned int acpi_sci_irq; 324 extern bool acpi_no_s5; 325 #define INVALID_ACPI_IRQ ((unsigned)-1) 326 static inline bool acpi_sci_irq_valid(void) 327 { 328 return acpi_sci_irq != INVALID_ACPI_IRQ; 329 } 330 331 extern int sbf_port; 332 extern unsigned long acpi_realmode_flags; 333 334 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 335 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 336 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 337 338 void acpi_set_irq_model(enum acpi_irq_model_id model, 339 struct fwnode_handle *fwnode); 340 341 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 342 unsigned int size, 343 struct fwnode_handle *fwnode, 344 const struct irq_domain_ops *ops, 345 void *host_data); 346 347 #ifdef CONFIG_X86_IO_APIC 348 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 349 #else 350 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 351 { 352 return -1; 353 } 354 #endif 355 /* 356 * This function undoes the effect of one call to acpi_register_gsi(). 357 * If this matches the last registration, any IRQ resources for gsi 358 * are freed. 359 */ 360 void acpi_unregister_gsi (u32 gsi); 361 362 struct pci_dev; 363 364 int acpi_pci_irq_enable (struct pci_dev *dev); 365 void acpi_penalize_isa_irq(int irq, int active); 366 bool acpi_isa_irq_available(int irq); 367 #ifdef CONFIG_PCI 368 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 369 #else 370 static inline void acpi_penalize_sci_irq(int irq, int trigger, 371 int polarity) 372 { 373 } 374 #endif 375 void acpi_pci_irq_disable (struct pci_dev *dev); 376 377 extern int ec_read(u8 addr, u8 *val); 378 extern int ec_write(u8 addr, u8 val); 379 extern int ec_transaction(u8 command, 380 const u8 *wdata, unsigned wdata_len, 381 u8 *rdata, unsigned rdata_len); 382 extern acpi_handle ec_get_handle(void); 383 384 extern bool acpi_is_pnp_device(struct acpi_device *); 385 386 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 387 388 typedef void (*wmi_notify_handler) (u32 value, void *context); 389 390 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 391 u32 method_id, 392 const struct acpi_buffer *in, 393 struct acpi_buffer *out); 394 extern acpi_status wmi_query_block(const char *guid, u8 instance, 395 struct acpi_buffer *out); 396 extern acpi_status wmi_set_block(const char *guid, u8 instance, 397 const struct acpi_buffer *in); 398 extern acpi_status wmi_install_notify_handler(const char *guid, 399 wmi_notify_handler handler, void *data); 400 extern acpi_status wmi_remove_notify_handler(const char *guid); 401 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 402 extern bool wmi_has_guid(const char *guid); 403 extern char *wmi_get_acpi_device_uid(const char *guid); 404 405 #endif /* CONFIG_ACPI_WMI */ 406 407 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 408 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 409 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 410 #define ACPI_VIDEO_BACKLIGHT 0x0008 411 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 412 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 413 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 414 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 415 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 416 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 417 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 418 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 419 420 extern char acpi_video_backlight_string[]; 421 extern long acpi_is_video_device(acpi_handle handle); 422 extern int acpi_blacklisted(void); 423 extern void acpi_osi_setup(char *str); 424 extern bool acpi_osi_is_win8(void); 425 426 #ifdef CONFIG_ACPI_NUMA 427 int acpi_map_pxm_to_node(int pxm); 428 int acpi_get_node(acpi_handle handle); 429 430 /** 431 * pxm_to_online_node - Map proximity ID to online node 432 * @pxm: ACPI proximity ID 433 * 434 * This is similar to pxm_to_node(), but always returns an online 435 * node. When the mapped node from a given proximity ID is offline, it 436 * looks up the node distance table and returns the nearest online node. 437 * 438 * ACPI device drivers, which are called after the NUMA initialization has 439 * completed in the kernel, can call this interface to obtain their device 440 * NUMA topology from ACPI tables. Such drivers do not have to deal with 441 * offline nodes. A node may be offline when SRAT memory entry does not exist, 442 * or NUMA is disabled, ex. "numa=off" on x86. 443 */ 444 static inline int pxm_to_online_node(int pxm) 445 { 446 int node = pxm_to_node(pxm); 447 448 return numa_map_to_online_node(node); 449 } 450 #else 451 static inline int pxm_to_online_node(int pxm) 452 { 453 return 0; 454 } 455 static inline int acpi_map_pxm_to_node(int pxm) 456 { 457 return 0; 458 } 459 static inline int acpi_get_node(acpi_handle handle) 460 { 461 return 0; 462 } 463 #endif 464 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 465 466 extern int pnpacpi_disabled; 467 468 #define PXM_INVAL (-1) 469 470 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 471 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 472 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 473 struct resource_win *win); 474 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 475 struct resource_win *win); 476 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 477 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 478 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 479 struct resource *res); 480 481 void acpi_dev_free_resource_list(struct list_head *list); 482 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 483 int (*preproc)(struct acpi_resource *, void *), 484 void *preproc_data); 485 int acpi_dev_get_dma_resources(struct acpi_device *adev, 486 struct list_head *list); 487 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 488 unsigned long types); 489 490 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 491 void *arg) 492 { 493 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 494 } 495 496 struct acpi_device *acpi_resource_consumer(struct resource *res); 497 498 int acpi_check_resource_conflict(const struct resource *res); 499 500 int acpi_check_region(resource_size_t start, resource_size_t n, 501 const char *name); 502 503 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res, 504 u32 level); 505 506 int acpi_resources_are_enforced(void); 507 508 #ifdef CONFIG_HIBERNATION 509 void __init acpi_no_s4_hw_signature(void); 510 #endif 511 512 #ifdef CONFIG_PM_SLEEP 513 void __init acpi_old_suspend_ordering(void); 514 void __init acpi_nvs_nosave(void); 515 void __init acpi_nvs_nosave_s3(void); 516 void __init acpi_sleep_no_blacklist(void); 517 #endif /* CONFIG_PM_SLEEP */ 518 519 int acpi_register_wakeup_handler( 520 int wake_irq, bool (*wakeup)(void *context), void *context); 521 void acpi_unregister_wakeup_handler( 522 bool (*wakeup)(void *context), void *context); 523 524 struct acpi_osc_context { 525 char *uuid_str; /* UUID string */ 526 int rev; 527 struct acpi_buffer cap; /* list of DWORD capabilities */ 528 struct acpi_buffer ret; /* free by caller if success */ 529 }; 530 531 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 532 533 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 534 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 535 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 536 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 537 538 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 539 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 540 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 541 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 542 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 543 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 544 545 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 546 #define OSC_SB_PAD_SUPPORT 0x00000001 547 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 548 #define OSC_SB_PR3_SUPPORT 0x00000004 549 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 550 #define OSC_SB_APEI_SUPPORT 0x00000010 551 #define OSC_SB_CPC_SUPPORT 0x00000020 552 #define OSC_SB_CPCV2_SUPPORT 0x00000040 553 #define OSC_SB_PCLPI_SUPPORT 0x00000080 554 #define OSC_SB_OSLPI_SUPPORT 0x00000100 555 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 556 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 557 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 558 #define OSC_SB_PRM_SUPPORT 0x00200000 559 560 extern bool osc_sb_apei_support_acked; 561 extern bool osc_pc_lpi_support_confirmed; 562 extern bool osc_sb_native_usb4_support_confirmed; 563 564 /* USB4 Capabilities */ 565 #define OSC_USB_USB3_TUNNELING 0x00000001 566 #define OSC_USB_DP_TUNNELING 0x00000002 567 #define OSC_USB_PCIE_TUNNELING 0x00000004 568 #define OSC_USB_XDOMAIN 0x00000008 569 570 extern u32 osc_sb_native_usb4_control; 571 572 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 573 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 574 #define OSC_PCI_ASPM_SUPPORT 0x00000002 575 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 576 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 577 #define OSC_PCI_MSI_SUPPORT 0x00000010 578 #define OSC_PCI_EDR_SUPPORT 0x00000080 579 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 580 #define OSC_PCI_SUPPORT_MASKS 0x0000019f 581 582 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 583 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 584 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 585 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 586 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 587 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 588 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 589 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 590 #define OSC_PCI_CONTROL_MASKS 0x000000bf 591 592 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 593 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 594 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 595 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 596 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 597 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 598 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 599 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 600 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 601 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 602 603 /* Enable _OST when all relevant hotplug operations are enabled */ 604 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 605 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 606 defined(CONFIG_ACPI_CONTAINER) 607 #define ACPI_HOTPLUG_OST 608 #endif 609 610 /* _OST Source Event Code (OSPM Action) */ 611 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 612 #define ACPI_OST_EC_OSPM_EJECT 0x103 613 #define ACPI_OST_EC_OSPM_INSERTION 0x200 614 615 /* _OST General Processing Status Code */ 616 #define ACPI_OST_SC_SUCCESS 0x0 617 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 618 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 619 620 /* _OST OS Shutdown Processing (0x100) Status Code */ 621 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 622 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 623 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 624 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 625 626 /* _OST Ejection Request (0x3, 0x103) Status Code */ 627 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 628 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 629 #define ACPI_OST_SC_DEVICE_BUSY 0x82 630 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 631 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 632 633 /* _OST Insertion Request (0x200) Status Code */ 634 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 635 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 636 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 637 638 enum acpi_predicate { 639 all_versions, 640 less_than_or_equal, 641 equal, 642 greater_than_or_equal, 643 }; 644 645 /* Table must be terminted by a NULL entry */ 646 struct acpi_platform_list { 647 char oem_id[ACPI_OEM_ID_SIZE+1]; 648 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 649 u32 oem_revision; 650 char *table; 651 enum acpi_predicate pred; 652 char *reason; 653 u32 data; 654 }; 655 int acpi_match_platform_list(const struct acpi_platform_list *plat); 656 657 extern void acpi_early_init(void); 658 extern void acpi_subsystem_init(void); 659 extern void arch_post_acpi_subsys_init(void); 660 661 extern int acpi_nvs_register(__u64 start, __u64 size); 662 663 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 664 void *data); 665 666 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 667 const struct device *dev); 668 669 const void *acpi_device_get_match_data(const struct device *dev); 670 extern bool acpi_driver_match_device(struct device *dev, 671 const struct device_driver *drv); 672 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 673 int acpi_device_modalias(struct device *, char *, int); 674 675 struct platform_device *acpi_create_platform_device(struct acpi_device *, 676 struct property_entry *); 677 #define ACPI_PTR(_ptr) (_ptr) 678 679 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 680 { 681 adev->flags.visited = true; 682 } 683 684 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 685 { 686 adev->flags.visited = false; 687 } 688 689 enum acpi_reconfig_event { 690 ACPI_RECONFIG_DEVICE_ADD = 0, 691 ACPI_RECONFIG_DEVICE_REMOVE, 692 }; 693 694 int acpi_reconfig_notifier_register(struct notifier_block *nb); 695 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 696 697 #ifdef CONFIG_ACPI_GTDT 698 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 699 int acpi_gtdt_map_ppi(int type); 700 bool acpi_gtdt_c3stop(int type); 701 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 702 #endif 703 704 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 705 static inline void acpi_arch_set_root_pointer(u64 addr) 706 { 707 } 708 #endif 709 710 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 711 static inline u64 acpi_arch_get_root_pointer(void) 712 { 713 return 0; 714 } 715 #endif 716 717 int acpi_get_local_address(acpi_handle handle, u32 *addr); 718 719 #else /* !CONFIG_ACPI */ 720 721 #define acpi_disabled 1 722 723 #define ACPI_COMPANION(dev) (NULL) 724 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 725 #define ACPI_HANDLE(dev) (NULL) 726 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 727 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 728 729 #include <acpi/acpi_numa.h> 730 731 struct fwnode_handle; 732 733 static inline bool acpi_dev_found(const char *hid) 734 { 735 return false; 736 } 737 738 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 739 { 740 return false; 741 } 742 743 struct acpi_device; 744 745 static inline bool 746 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 747 { 748 return false; 749 } 750 751 static inline struct acpi_device * 752 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 753 { 754 return NULL; 755 } 756 757 static inline bool acpi_reduced_hardware(void) 758 { 759 return false; 760 } 761 762 static inline void acpi_dev_put(struct acpi_device *adev) {} 763 764 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 765 { 766 return false; 767 } 768 769 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 770 { 771 return false; 772 } 773 774 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 775 { 776 return NULL; 777 } 778 779 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 780 { 781 return false; 782 } 783 784 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 785 { 786 return NULL; 787 } 788 789 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 790 const char *name) 791 { 792 return false; 793 } 794 795 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 796 { 797 return NULL; 798 } 799 800 static inline bool has_acpi_companion(struct device *dev) 801 { 802 return false; 803 } 804 805 static inline void acpi_preset_companion(struct device *dev, 806 struct acpi_device *parent, u64 addr) 807 { 808 } 809 810 static inline const char *acpi_dev_name(struct acpi_device *adev) 811 { 812 return NULL; 813 } 814 815 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 816 { 817 return NULL; 818 } 819 820 static inline void acpi_early_init(void) { } 821 static inline void acpi_subsystem_init(void) { } 822 823 static inline int early_acpi_boot_init(void) 824 { 825 return 0; 826 } 827 static inline int acpi_boot_init(void) 828 { 829 return 0; 830 } 831 832 static inline void acpi_boot_table_prepare(void) 833 { 834 } 835 836 static inline void acpi_boot_table_init(void) 837 { 838 } 839 840 static inline int acpi_mps_check(void) 841 { 842 return 0; 843 } 844 845 static inline int acpi_check_resource_conflict(struct resource *res) 846 { 847 return 0; 848 } 849 850 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 851 const char *name) 852 { 853 return 0; 854 } 855 856 struct acpi_table_header; 857 static inline int acpi_table_parse(char *id, 858 int (*handler)(struct acpi_table_header *)) 859 { 860 return -ENODEV; 861 } 862 863 static inline int acpi_nvs_register(__u64 start, __u64 size) 864 { 865 return 0; 866 } 867 868 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 869 void *data) 870 { 871 return 0; 872 } 873 874 struct acpi_device_id; 875 876 static inline const struct acpi_device_id *acpi_match_device( 877 const struct acpi_device_id *ids, const struct device *dev) 878 { 879 return NULL; 880 } 881 882 static inline const void *acpi_device_get_match_data(const struct device *dev) 883 { 884 return NULL; 885 } 886 887 static inline bool acpi_driver_match_device(struct device *dev, 888 const struct device_driver *drv) 889 { 890 return false; 891 } 892 893 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 894 const guid_t *guid, 895 u64 rev, u64 func, 896 union acpi_object *argv4) 897 { 898 return NULL; 899 } 900 901 static inline int acpi_device_uevent_modalias(struct device *dev, 902 struct kobj_uevent_env *env) 903 { 904 return -ENODEV; 905 } 906 907 static inline int acpi_device_modalias(struct device *dev, 908 char *buf, int size) 909 { 910 return -ENODEV; 911 } 912 913 static inline struct platform_device * 914 acpi_create_platform_device(struct acpi_device *adev, 915 struct property_entry *properties) 916 { 917 return NULL; 918 } 919 920 static inline bool acpi_dma_supported(const struct acpi_device *adev) 921 { 922 return false; 923 } 924 925 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 926 { 927 return DEV_DMA_NOT_SUPPORTED; 928 } 929 930 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 931 u64 *offset, u64 *size) 932 { 933 return -ENODEV; 934 } 935 936 static inline int acpi_dma_configure(struct device *dev, 937 enum dev_dma_attr attr) 938 { 939 return 0; 940 } 941 942 static inline int acpi_dma_configure_id(struct device *dev, 943 enum dev_dma_attr attr, 944 const u32 *input_id) 945 { 946 return 0; 947 } 948 949 #define ACPI_PTR(_ptr) (NULL) 950 951 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 952 { 953 } 954 955 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 956 { 957 } 958 959 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 960 { 961 return -EINVAL; 962 } 963 964 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 965 { 966 return -EINVAL; 967 } 968 969 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 970 { 971 return NULL; 972 } 973 974 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 975 { 976 return -ENODEV; 977 } 978 979 #endif /* !CONFIG_ACPI */ 980 981 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 982 int acpi_ioapic_add(acpi_handle root); 983 #else 984 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 985 #endif 986 987 #ifdef CONFIG_ACPI 988 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 989 u32 pm1a_ctrl, u32 pm1b_ctrl)); 990 991 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 992 u32 pm1a_control, u32 pm1b_control); 993 994 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 995 u32 val_a, u32 val_b)); 996 997 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 998 u32 val_a, u32 val_b); 999 1000 #ifndef CONFIG_IA64 1001 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1002 #else 1003 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1004 size_t size) 1005 { 1006 } 1007 #endif /* CONFIG_X86 */ 1008 #else 1009 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1010 #endif 1011 1012 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1013 int acpi_dev_suspend(struct device *dev, bool wakeup); 1014 int acpi_dev_resume(struct device *dev); 1015 int acpi_subsys_runtime_suspend(struct device *dev); 1016 int acpi_subsys_runtime_resume(struct device *dev); 1017 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1018 bool acpi_storage_d3(struct device *dev); 1019 #else 1020 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1021 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1022 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1023 { 1024 return 0; 1025 } 1026 static inline bool acpi_storage_d3(struct device *dev) 1027 { 1028 return false; 1029 } 1030 #endif 1031 1032 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1033 int acpi_subsys_prepare(struct device *dev); 1034 void acpi_subsys_complete(struct device *dev); 1035 int acpi_subsys_suspend_late(struct device *dev); 1036 int acpi_subsys_suspend_noirq(struct device *dev); 1037 int acpi_subsys_suspend(struct device *dev); 1038 int acpi_subsys_freeze(struct device *dev); 1039 int acpi_subsys_poweroff(struct device *dev); 1040 void acpi_ec_mark_gpe_for_wake(void); 1041 void acpi_ec_set_gpe_wake_mask(u8 action); 1042 #else 1043 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1044 static inline void acpi_subsys_complete(struct device *dev) {} 1045 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1046 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1047 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1048 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1049 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1050 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1051 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1052 #endif 1053 1054 #ifdef CONFIG_ACPI 1055 __printf(3, 4) 1056 void acpi_handle_printk(const char *level, acpi_handle handle, 1057 const char *fmt, ...); 1058 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1059 acpi_status status); 1060 #else /* !CONFIG_ACPI */ 1061 static inline __printf(3, 4) void 1062 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1063 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1064 const char *name, 1065 acpi_status status) {} 1066 #endif /* !CONFIG_ACPI */ 1067 1068 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1069 __printf(3, 4) 1070 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1071 #endif 1072 1073 /* 1074 * acpi_handle_<level>: Print message with ACPI prefix and object path 1075 * 1076 * These interfaces acquire the global namespace mutex to obtain an object 1077 * path. In interrupt context, it shows the object path as <n/a>. 1078 */ 1079 #define acpi_handle_emerg(handle, fmt, ...) \ 1080 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1081 #define acpi_handle_alert(handle, fmt, ...) \ 1082 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1083 #define acpi_handle_crit(handle, fmt, ...) \ 1084 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1085 #define acpi_handle_err(handle, fmt, ...) \ 1086 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1087 #define acpi_handle_warn(handle, fmt, ...) \ 1088 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1089 #define acpi_handle_notice(handle, fmt, ...) \ 1090 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1091 #define acpi_handle_info(handle, fmt, ...) \ 1092 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1093 1094 #if defined(DEBUG) 1095 #define acpi_handle_debug(handle, fmt, ...) \ 1096 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1097 #else 1098 #if defined(CONFIG_DYNAMIC_DEBUG) 1099 #define acpi_handle_debug(handle, fmt, ...) \ 1100 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1101 handle, pr_fmt(fmt), ##__VA_ARGS__) 1102 #else 1103 #define acpi_handle_debug(handle, fmt, ...) \ 1104 ({ \ 1105 if (0) \ 1106 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1107 0; \ 1108 }) 1109 #endif 1110 #endif 1111 1112 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1113 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1114 struct acpi_resource_gpio **agpio); 1115 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1116 struct acpi_resource_gpio **agpio); 1117 int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index); 1118 #else 1119 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1120 struct acpi_resource_gpio **agpio) 1121 { 1122 return false; 1123 } 1124 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1125 struct acpi_resource_gpio **agpio) 1126 { 1127 return false; 1128 } 1129 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, 1130 const char *name, int index) 1131 { 1132 return -ENXIO; 1133 } 1134 #endif 1135 1136 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1137 { 1138 return acpi_dev_gpio_irq_get_by(adev, NULL, index); 1139 } 1140 1141 /* Device properties */ 1142 1143 #ifdef CONFIG_ACPI 1144 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1145 acpi_object_type type, const union acpi_object **obj); 1146 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1147 const char *name, size_t index, size_t num_args, 1148 struct fwnode_reference_args *args); 1149 1150 static inline int acpi_node_get_property_reference( 1151 const struct fwnode_handle *fwnode, 1152 const char *name, size_t index, 1153 struct fwnode_reference_args *args) 1154 { 1155 return __acpi_node_get_property_reference(fwnode, name, index, 1156 NR_FWNODE_REFERENCE_ARGS, args); 1157 } 1158 1159 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1160 { 1161 return !list_empty(&adev->data.properties); 1162 } 1163 1164 struct acpi_device_properties * 1165 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1166 const union acpi_object *properties); 1167 1168 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1169 void **valptr); 1170 1171 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1172 struct fwnode_handle *child); 1173 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1174 1175 struct acpi_probe_entry; 1176 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1177 struct acpi_probe_entry *); 1178 1179 #define ACPI_TABLE_ID_LEN 5 1180 1181 /** 1182 * struct acpi_probe_entry - boot-time probing entry 1183 * @id: ACPI table name 1184 * @type: Optional subtable type to match 1185 * (if @id contains subtables) 1186 * @subtable_valid: Optional callback to check the validity of 1187 * the subtable 1188 * @probe_table: Callback to the driver being probed when table 1189 * match is successful 1190 * @probe_subtbl: Callback to the driver being probed when table and 1191 * subtable match (and optional callback is successful) 1192 * @driver_data: Sideband data provided back to the driver 1193 */ 1194 struct acpi_probe_entry { 1195 __u8 id[ACPI_TABLE_ID_LEN]; 1196 __u8 type; 1197 acpi_probe_entry_validate_subtbl subtable_valid; 1198 union { 1199 acpi_tbl_table_handler probe_table; 1200 acpi_tbl_entry_handler probe_subtbl; 1201 }; 1202 kernel_ulong_t driver_data; 1203 }; 1204 1205 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1206 valid, data, fn) \ 1207 static const struct acpi_probe_entry __acpi_probe_##name \ 1208 __used __section("__" #table "_acpi_probe_table") = { \ 1209 .id = table_id, \ 1210 .type = subtable, \ 1211 .subtable_valid = valid, \ 1212 .probe_table = fn, \ 1213 .driver_data = data, \ 1214 } 1215 1216 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1217 subtable, valid, data, fn) \ 1218 static const struct acpi_probe_entry __acpi_probe_##name \ 1219 __used __section("__" #table "_acpi_probe_table") = { \ 1220 .id = table_id, \ 1221 .type = subtable, \ 1222 .subtable_valid = valid, \ 1223 .probe_subtbl = fn, \ 1224 .driver_data = data, \ 1225 } 1226 1227 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1228 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1229 1230 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1231 1232 #define acpi_probe_device_table(t) \ 1233 ({ \ 1234 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1235 ACPI_PROBE_TABLE_END(t); \ 1236 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1237 (&ACPI_PROBE_TABLE_END(t) - \ 1238 &ACPI_PROBE_TABLE(t))); \ 1239 }) 1240 #else 1241 static inline int acpi_dev_get_property(struct acpi_device *adev, 1242 const char *name, acpi_object_type type, 1243 const union acpi_object **obj) 1244 { 1245 return -ENXIO; 1246 } 1247 1248 static inline int 1249 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1250 const char *name, size_t index, size_t num_args, 1251 struct fwnode_reference_args *args) 1252 { 1253 return -ENXIO; 1254 } 1255 1256 static inline int 1257 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1258 const char *name, size_t index, 1259 struct fwnode_reference_args *args) 1260 { 1261 return -ENXIO; 1262 } 1263 1264 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1265 const char *propname, 1266 void **valptr) 1267 { 1268 return -ENXIO; 1269 } 1270 1271 static inline struct fwnode_handle * 1272 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1273 struct fwnode_handle *child) 1274 { 1275 return NULL; 1276 } 1277 1278 static inline struct fwnode_handle * 1279 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1280 { 1281 return NULL; 1282 } 1283 1284 static inline struct fwnode_handle * 1285 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1286 struct fwnode_handle *prev) 1287 { 1288 return ERR_PTR(-ENXIO); 1289 } 1290 1291 static inline int 1292 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1293 struct fwnode_handle **remote, 1294 struct fwnode_handle **port, 1295 struct fwnode_handle **endpoint) 1296 { 1297 return -ENXIO; 1298 } 1299 1300 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1301 static const void * __acpi_table_##name[] \ 1302 __attribute__((unused)) \ 1303 = { (void *) table_id, \ 1304 (void *) subtable, \ 1305 (void *) valid, \ 1306 (void *) fn, \ 1307 (void *) data } 1308 1309 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1310 #endif 1311 1312 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1313 void acpi_table_upgrade(void); 1314 #else 1315 static inline void acpi_table_upgrade(void) { } 1316 #endif 1317 1318 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1319 extern bool acpi_has_watchdog(void); 1320 #else 1321 static inline bool acpi_has_watchdog(void) { return false; } 1322 #endif 1323 1324 #ifdef CONFIG_ACPI_SPCR_TABLE 1325 extern bool qdf2400_e44_present; 1326 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1327 #else 1328 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1329 { 1330 return 0; 1331 } 1332 #endif 1333 1334 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1335 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1336 #else 1337 static inline 1338 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1339 { 1340 return -EINVAL; 1341 } 1342 #endif 1343 1344 #ifdef CONFIG_ACPI_LPIT 1345 int lpit_read_residency_count_address(u64 *address); 1346 #else 1347 static inline int lpit_read_residency_count_address(u64 *address) 1348 { 1349 return -EINVAL; 1350 } 1351 #endif 1352 1353 #ifdef CONFIG_ACPI_PPTT 1354 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1355 int find_acpi_cpu_topology(unsigned int cpu, int level); 1356 int find_acpi_cpu_topology_package(unsigned int cpu); 1357 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1358 int find_acpi_cpu_cache_topology(unsigned int cpu, int level); 1359 #else 1360 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1361 { 1362 return -EINVAL; 1363 } 1364 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1365 { 1366 return -EINVAL; 1367 } 1368 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1369 { 1370 return -EINVAL; 1371 } 1372 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1373 { 1374 return -EINVAL; 1375 } 1376 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level) 1377 { 1378 return -EINVAL; 1379 } 1380 #endif 1381 1382 #ifdef CONFIG_ACPI 1383 extern int acpi_platform_notify(struct device *dev, enum kobject_action action); 1384 #else 1385 static inline int 1386 acpi_platform_notify(struct device *dev, enum kobject_action action) 1387 { 1388 return 0; 1389 } 1390 #endif 1391 1392 #endif /*_LINUX_ACPI_H*/ 1393