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 static inline bool has_acpi_companion(struct device *dev) 74 { 75 return is_acpi_device_node(dev->fwnode); 76 } 77 78 static inline void acpi_preset_companion(struct device *dev, 79 struct acpi_device *parent, u64 addr) 80 { 81 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 82 } 83 84 static inline const char *acpi_dev_name(struct acpi_device *adev) 85 { 86 return dev_name(&adev->dev); 87 } 88 89 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 90 91 enum acpi_irq_model_id { 92 ACPI_IRQ_MODEL_PIC = 0, 93 ACPI_IRQ_MODEL_IOAPIC, 94 ACPI_IRQ_MODEL_IOSAPIC, 95 ACPI_IRQ_MODEL_PLATFORM, 96 ACPI_IRQ_MODEL_GIC, 97 ACPI_IRQ_MODEL_LPIC, 98 ACPI_IRQ_MODEL_COUNT 99 }; 100 101 extern enum acpi_irq_model_id acpi_irq_model; 102 103 enum acpi_interrupt_id { 104 ACPI_INTERRUPT_PMI = 1, 105 ACPI_INTERRUPT_INIT, 106 ACPI_INTERRUPT_CPEI, 107 ACPI_INTERRUPT_COUNT 108 }; 109 110 #define ACPI_SPACE_MEM 0 111 112 enum acpi_address_range_id { 113 ACPI_ADDRESS_RANGE_MEMORY = 1, 114 ACPI_ADDRESS_RANGE_RESERVED = 2, 115 ACPI_ADDRESS_RANGE_ACPI = 3, 116 ACPI_ADDRESS_RANGE_NVS = 4, 117 ACPI_ADDRESS_RANGE_COUNT 118 }; 119 120 121 /* Table Handlers */ 122 union acpi_subtable_headers { 123 struct acpi_subtable_header common; 124 struct acpi_hmat_structure hmat; 125 struct acpi_prmt_module_header prmt; 126 struct acpi_cedt_header cedt; 127 }; 128 129 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 130 131 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, 132 const unsigned long end); 133 134 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, 135 void *arg, const unsigned long end); 136 137 /* Debugger support */ 138 139 struct acpi_debugger_ops { 140 int (*create_thread)(acpi_osd_exec_callback function, void *context); 141 ssize_t (*write_log)(const char *msg); 142 ssize_t (*read_cmd)(char *buffer, size_t length); 143 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 144 int (*notify_command_complete)(void); 145 }; 146 147 struct acpi_debugger { 148 const struct acpi_debugger_ops *ops; 149 struct module *owner; 150 struct mutex lock; 151 }; 152 153 #ifdef CONFIG_ACPI_DEBUGGER 154 int __init acpi_debugger_init(void); 155 int acpi_register_debugger(struct module *owner, 156 const struct acpi_debugger_ops *ops); 157 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 158 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 159 ssize_t acpi_debugger_write_log(const char *msg); 160 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 161 int acpi_debugger_wait_command_ready(void); 162 int acpi_debugger_notify_command_complete(void); 163 #else 164 static inline int acpi_debugger_init(void) 165 { 166 return -ENODEV; 167 } 168 169 static inline int acpi_register_debugger(struct module *owner, 170 const struct acpi_debugger_ops *ops) 171 { 172 return -ENODEV; 173 } 174 175 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 176 { 177 } 178 179 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 180 void *context) 181 { 182 return -ENODEV; 183 } 184 185 static inline int acpi_debugger_write_log(const char *msg) 186 { 187 return -ENODEV; 188 } 189 190 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 191 { 192 return -ENODEV; 193 } 194 195 static inline int acpi_debugger_wait_command_ready(void) 196 { 197 return -ENODEV; 198 } 199 200 static inline int acpi_debugger_notify_command_complete(void) 201 { 202 return -ENODEV; 203 } 204 #endif 205 206 #define BAD_MADT_ENTRY(entry, end) ( \ 207 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 208 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 209 210 struct acpi_subtable_proc { 211 int id; 212 acpi_tbl_entry_handler handler; 213 acpi_tbl_entry_handler_arg handler_arg; 214 void *arg; 215 int count; 216 }; 217 218 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 219 void __acpi_unmap_table(void __iomem *map, unsigned long size); 220 int early_acpi_boot_init(void); 221 int acpi_boot_init (void); 222 void acpi_boot_table_prepare (void); 223 void acpi_boot_table_init (void); 224 int acpi_mps_check (void); 225 int acpi_numa_init (void); 226 227 int acpi_locate_initial_tables (void); 228 void acpi_reserve_initial_tables (void); 229 void acpi_table_init_complete (void); 230 int acpi_table_init (void); 231 232 #ifdef CONFIG_ACPI_TABLE_LIB 233 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 234 #define __init_or_acpilib 235 #define __initdata_or_acpilib 236 #else 237 #define EXPORT_SYMBOL_ACPI_LIB(x) 238 #define __init_or_acpilib __init 239 #define __initdata_or_acpilib __initdata 240 #endif 241 242 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 243 int __init_or_acpilib acpi_table_parse_entries(char *id, 244 unsigned long table_size, int entry_id, 245 acpi_tbl_entry_handler handler, unsigned int max_entries); 246 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 247 unsigned long table_size, struct acpi_subtable_proc *proc, 248 int proc_num, unsigned int max_entries); 249 int acpi_table_parse_madt(enum acpi_madt_type id, 250 acpi_tbl_entry_handler handler, 251 unsigned int max_entries); 252 int __init_or_acpilib 253 acpi_table_parse_cedt(enum acpi_cedt_type id, 254 acpi_tbl_entry_handler_arg handler_arg, void *arg); 255 256 int acpi_parse_mcfg (struct acpi_table_header *header); 257 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 258 259 /* the following numa functions are architecture-dependent */ 260 void acpi_numa_slit_init (struct acpi_table_slit *slit); 261 262 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH) 263 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 264 #else 265 static inline void 266 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 267 #endif 268 269 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 270 271 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 272 void acpi_arch_dma_setup(struct device *dev); 273 #else 274 static inline void acpi_arch_dma_setup(struct device *dev) { } 275 #endif 276 277 #ifdef CONFIG_ARM64 278 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 279 #else 280 static inline void 281 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 282 #endif 283 284 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 285 286 #ifndef PHYS_CPUID_INVALID 287 typedef u32 phys_cpuid_t; 288 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 289 #endif 290 291 static inline bool invalid_logical_cpuid(u32 cpuid) 292 { 293 return (int)cpuid < 0; 294 } 295 296 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 297 { 298 return phys_id == PHYS_CPUID_INVALID; 299 } 300 301 /* Validate the processor object's proc_id */ 302 bool acpi_duplicate_processor_id(int proc_id); 303 /* Processor _CTS control */ 304 struct acpi_processor_power; 305 306 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 307 bool acpi_processor_claim_cst_control(void); 308 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 309 struct acpi_processor_power *info); 310 #else 311 static inline bool acpi_processor_claim_cst_control(void) { return false; } 312 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 313 struct acpi_processor_power *info) 314 { 315 return -ENODEV; 316 } 317 #endif 318 319 #ifdef CONFIG_ACPI_HOTPLUG_CPU 320 /* Arch dependent functions for cpu hotplug support */ 321 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 322 int *pcpu); 323 int acpi_unmap_cpu(int cpu); 324 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 325 326 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 327 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 328 #endif 329 330 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 331 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 332 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 333 void acpi_irq_stats_init(void); 334 extern u32 acpi_irq_handled; 335 extern u32 acpi_irq_not_handled; 336 extern unsigned int acpi_sci_irq; 337 extern bool acpi_no_s5; 338 #define INVALID_ACPI_IRQ ((unsigned)-1) 339 static inline bool acpi_sci_irq_valid(void) 340 { 341 return acpi_sci_irq != INVALID_ACPI_IRQ; 342 } 343 344 extern int sbf_port; 345 extern unsigned long acpi_realmode_flags; 346 347 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 348 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 349 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 350 351 void acpi_set_irq_model(enum acpi_irq_model_id model, 352 struct fwnode_handle *(*)(u32)); 353 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 354 355 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 356 unsigned int size, 357 struct fwnode_handle *fwnode, 358 const struct irq_domain_ops *ops, 359 void *host_data); 360 361 #ifdef CONFIG_X86_IO_APIC 362 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 363 #else 364 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 365 { 366 return -1; 367 } 368 #endif 369 /* 370 * This function undoes the effect of one call to acpi_register_gsi(). 371 * If this matches the last registration, any IRQ resources for gsi 372 * are freed. 373 */ 374 void acpi_unregister_gsi (u32 gsi); 375 376 struct pci_dev; 377 378 int acpi_pci_irq_enable (struct pci_dev *dev); 379 void acpi_penalize_isa_irq(int irq, int active); 380 bool acpi_isa_irq_available(int irq); 381 #ifdef CONFIG_PCI 382 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 383 #else 384 static inline void acpi_penalize_sci_irq(int irq, int trigger, 385 int polarity) 386 { 387 } 388 #endif 389 void acpi_pci_irq_disable (struct pci_dev *dev); 390 391 extern int ec_read(u8 addr, u8 *val); 392 extern int ec_write(u8 addr, u8 val); 393 extern int ec_transaction(u8 command, 394 const u8 *wdata, unsigned wdata_len, 395 u8 *rdata, unsigned rdata_len); 396 extern acpi_handle ec_get_handle(void); 397 398 extern bool acpi_is_pnp_device(struct acpi_device *); 399 400 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 401 402 typedef void (*wmi_notify_handler) (u32 value, void *context); 403 404 int wmi_instance_count(const char *guid); 405 406 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 407 u32 method_id, 408 const struct acpi_buffer *in, 409 struct acpi_buffer *out); 410 extern acpi_status wmi_query_block(const char *guid, u8 instance, 411 struct acpi_buffer *out); 412 extern acpi_status wmi_set_block(const char *guid, u8 instance, 413 const struct acpi_buffer *in); 414 extern acpi_status wmi_install_notify_handler(const char *guid, 415 wmi_notify_handler handler, void *data); 416 extern acpi_status wmi_remove_notify_handler(const char *guid); 417 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 418 extern bool wmi_has_guid(const char *guid); 419 extern char *wmi_get_acpi_device_uid(const char *guid); 420 421 #endif /* CONFIG_ACPI_WMI */ 422 423 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 424 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 425 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 426 #define ACPI_VIDEO_BACKLIGHT 0x0008 427 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 428 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 429 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 430 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 431 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 432 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 433 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 434 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 435 436 extern char acpi_video_backlight_string[]; 437 extern long acpi_is_video_device(acpi_handle handle); 438 extern int acpi_blacklisted(void); 439 extern void acpi_osi_setup(char *str); 440 extern bool acpi_osi_is_win8(void); 441 442 #ifdef CONFIG_ACPI_NUMA 443 int acpi_map_pxm_to_node(int pxm); 444 int acpi_get_node(acpi_handle handle); 445 446 /** 447 * pxm_to_online_node - Map proximity ID to online node 448 * @pxm: ACPI proximity ID 449 * 450 * This is similar to pxm_to_node(), but always returns an online 451 * node. When the mapped node from a given proximity ID is offline, it 452 * looks up the node distance table and returns the nearest online node. 453 * 454 * ACPI device drivers, which are called after the NUMA initialization has 455 * completed in the kernel, can call this interface to obtain their device 456 * NUMA topology from ACPI tables. Such drivers do not have to deal with 457 * offline nodes. A node may be offline when SRAT memory entry does not exist, 458 * or NUMA is disabled, ex. "numa=off" on x86. 459 */ 460 static inline int pxm_to_online_node(int pxm) 461 { 462 int node = pxm_to_node(pxm); 463 464 return numa_map_to_online_node(node); 465 } 466 #else 467 static inline int pxm_to_online_node(int pxm) 468 { 469 return 0; 470 } 471 static inline int acpi_map_pxm_to_node(int pxm) 472 { 473 return 0; 474 } 475 static inline int acpi_get_node(acpi_handle handle) 476 { 477 return 0; 478 } 479 #endif 480 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 481 482 extern int pnpacpi_disabled; 483 484 #define PXM_INVAL (-1) 485 486 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 487 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 488 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 489 struct resource_win *win); 490 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 491 struct resource_win *win); 492 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 493 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 494 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 495 struct resource *res); 496 497 void acpi_dev_free_resource_list(struct list_head *list); 498 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 499 int (*preproc)(struct acpi_resource *, void *), 500 void *preproc_data); 501 int acpi_dev_get_dma_resources(struct acpi_device *adev, 502 struct list_head *list); 503 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 504 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 505 unsigned long types); 506 507 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 508 void *arg) 509 { 510 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 511 } 512 513 struct acpi_device *acpi_resource_consumer(struct resource *res); 514 515 int acpi_check_resource_conflict(const struct resource *res); 516 517 int acpi_check_region(resource_size_t start, resource_size_t n, 518 const char *name); 519 520 int acpi_resources_are_enforced(void); 521 522 #ifdef CONFIG_HIBERNATION 523 extern int acpi_check_s4_hw_signature; 524 #endif 525 526 #ifdef CONFIG_PM_SLEEP 527 void __init acpi_old_suspend_ordering(void); 528 void __init acpi_nvs_nosave(void); 529 void __init acpi_nvs_nosave_s3(void); 530 void __init acpi_sleep_no_blacklist(void); 531 #endif /* CONFIG_PM_SLEEP */ 532 533 int acpi_register_wakeup_handler( 534 int wake_irq, bool (*wakeup)(void *context), void *context); 535 void acpi_unregister_wakeup_handler( 536 bool (*wakeup)(void *context), void *context); 537 538 struct acpi_osc_context { 539 char *uuid_str; /* UUID string */ 540 int rev; 541 struct acpi_buffer cap; /* list of DWORD capabilities */ 542 struct acpi_buffer ret; /* free by caller if success */ 543 }; 544 545 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 546 547 /* Number of _OSC capability DWORDS depends on bridge type */ 548 #define OSC_PCI_CAPABILITY_DWORDS 3 549 #define OSC_CXL_CAPABILITY_DWORDS 5 550 551 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 552 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 553 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 554 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 555 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 556 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 557 558 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 559 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 560 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 561 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 562 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 563 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 564 565 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 566 #define OSC_SB_PAD_SUPPORT 0x00000001 567 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 568 #define OSC_SB_PR3_SUPPORT 0x00000004 569 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 570 #define OSC_SB_APEI_SUPPORT 0x00000010 571 #define OSC_SB_CPC_SUPPORT 0x00000020 572 #define OSC_SB_CPCV2_SUPPORT 0x00000040 573 #define OSC_SB_PCLPI_SUPPORT 0x00000080 574 #define OSC_SB_OSLPI_SUPPORT 0x00000100 575 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 576 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 577 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 578 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 579 #define OSC_SB_PRM_SUPPORT 0x00200000 580 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 581 582 extern bool osc_sb_apei_support_acked; 583 extern bool osc_pc_lpi_support_confirmed; 584 extern bool osc_sb_native_usb4_support_confirmed; 585 extern bool osc_sb_cppc2_support_acked; 586 extern bool osc_cpc_flexible_adr_space_confirmed; 587 588 /* USB4 Capabilities */ 589 #define OSC_USB_USB3_TUNNELING 0x00000001 590 #define OSC_USB_DP_TUNNELING 0x00000002 591 #define OSC_USB_PCIE_TUNNELING 0x00000004 592 #define OSC_USB_XDOMAIN 0x00000008 593 594 extern u32 osc_sb_native_usb4_control; 595 596 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 597 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 598 #define OSC_PCI_ASPM_SUPPORT 0x00000002 599 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 600 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 601 #define OSC_PCI_MSI_SUPPORT 0x00000010 602 #define OSC_PCI_EDR_SUPPORT 0x00000080 603 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 604 605 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 606 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 607 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 608 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 609 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 610 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 611 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 612 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 613 614 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 615 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 616 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 617 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 618 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 619 620 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 621 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 622 623 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 624 { 625 u32 *ret = context->ret.pointer; 626 627 return ret[OSC_CONTROL_DWORD]; 628 } 629 630 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 631 { 632 u32 *ret = context->ret.pointer; 633 634 return ret[OSC_EXT_CONTROL_DWORD]; 635 } 636 637 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 638 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 639 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 640 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 641 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 642 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 643 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 644 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 645 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 646 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 647 648 /* Enable _OST when all relevant hotplug operations are enabled */ 649 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 650 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 651 defined(CONFIG_ACPI_CONTAINER) 652 #define ACPI_HOTPLUG_OST 653 #endif 654 655 /* _OST Source Event Code (OSPM Action) */ 656 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 657 #define ACPI_OST_EC_OSPM_EJECT 0x103 658 #define ACPI_OST_EC_OSPM_INSERTION 0x200 659 660 /* _OST General Processing Status Code */ 661 #define ACPI_OST_SC_SUCCESS 0x0 662 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 663 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 664 665 /* _OST OS Shutdown Processing (0x100) Status Code */ 666 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 667 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 668 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 669 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 670 671 /* _OST Ejection Request (0x3, 0x103) Status Code */ 672 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 673 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 674 #define ACPI_OST_SC_DEVICE_BUSY 0x82 675 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 676 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 677 678 /* _OST Insertion Request (0x200) Status Code */ 679 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 680 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 681 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 682 683 enum acpi_predicate { 684 all_versions, 685 less_than_or_equal, 686 equal, 687 greater_than_or_equal, 688 }; 689 690 /* Table must be terminted by a NULL entry */ 691 struct acpi_platform_list { 692 char oem_id[ACPI_OEM_ID_SIZE+1]; 693 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 694 u32 oem_revision; 695 char *table; 696 enum acpi_predicate pred; 697 char *reason; 698 u32 data; 699 }; 700 int acpi_match_platform_list(const struct acpi_platform_list *plat); 701 702 extern void acpi_early_init(void); 703 extern void acpi_subsystem_init(void); 704 705 extern int acpi_nvs_register(__u64 start, __u64 size); 706 707 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 708 void *data); 709 710 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, 711 const struct acpi_device *adev); 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(const 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 const char *acpi_get_subsystem_id(acpi_handle handle); 766 767 #else /* !CONFIG_ACPI */ 768 769 #define acpi_disabled 1 770 771 #define ACPI_COMPANION(dev) (NULL) 772 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 773 #define ACPI_HANDLE(dev) (NULL) 774 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 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 int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 799 { 800 return -ENODEV; 801 } 802 803 static inline struct acpi_device * 804 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 805 { 806 return NULL; 807 } 808 809 static inline bool acpi_reduced_hardware(void) 810 { 811 return false; 812 } 813 814 static inline void acpi_dev_put(struct acpi_device *adev) {} 815 816 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 817 { 818 return false; 819 } 820 821 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 822 { 823 return false; 824 } 825 826 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 827 { 828 return NULL; 829 } 830 831 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 832 { 833 return false; 834 } 835 836 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 837 { 838 return NULL; 839 } 840 841 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 842 const char *name) 843 { 844 return false; 845 } 846 847 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 848 { 849 return NULL; 850 } 851 852 static inline bool has_acpi_companion(struct device *dev) 853 { 854 return false; 855 } 856 857 static inline void acpi_preset_companion(struct device *dev, 858 struct acpi_device *parent, u64 addr) 859 { 860 } 861 862 static inline const char *acpi_dev_name(struct acpi_device *adev) 863 { 864 return NULL; 865 } 866 867 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 868 { 869 return NULL; 870 } 871 872 static inline void acpi_early_init(void) { } 873 static inline void acpi_subsystem_init(void) { } 874 875 static inline int early_acpi_boot_init(void) 876 { 877 return 0; 878 } 879 static inline int acpi_boot_init(void) 880 { 881 return 0; 882 } 883 884 static inline void acpi_boot_table_prepare(void) 885 { 886 } 887 888 static inline void acpi_boot_table_init(void) 889 { 890 } 891 892 static inline int acpi_mps_check(void) 893 { 894 return 0; 895 } 896 897 static inline int acpi_check_resource_conflict(struct resource *res) 898 { 899 return 0; 900 } 901 902 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 903 const char *name) 904 { 905 return 0; 906 } 907 908 struct acpi_table_header; 909 static inline int acpi_table_parse(char *id, 910 int (*handler)(struct acpi_table_header *)) 911 { 912 return -ENODEV; 913 } 914 915 static inline int acpi_nvs_register(__u64 start, __u64 size) 916 { 917 return 0; 918 } 919 920 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 921 void *data) 922 { 923 return 0; 924 } 925 926 struct acpi_device_id; 927 928 static inline const struct acpi_device_id *acpi_match_acpi_device( 929 const struct acpi_device_id *ids, const struct acpi_device *adev) 930 { 931 return NULL; 932 } 933 934 static inline const struct acpi_device_id *acpi_match_device( 935 const struct acpi_device_id *ids, const struct device *dev) 936 { 937 return NULL; 938 } 939 940 static inline const void *acpi_device_get_match_data(const struct device *dev) 941 { 942 return NULL; 943 } 944 945 static inline bool acpi_driver_match_device(struct device *dev, 946 const struct device_driver *drv) 947 { 948 return false; 949 } 950 951 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 952 u64 rev, u64 funcs) 953 { 954 return false; 955 } 956 957 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 958 const guid_t *guid, 959 u64 rev, u64 func, 960 union acpi_object *argv4) 961 { 962 return NULL; 963 } 964 965 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 966 const guid_t *guid, 967 u64 rev, u64 func, 968 union acpi_object *argv4, 969 acpi_object_type type) 970 { 971 return NULL; 972 } 973 974 static inline int acpi_device_uevent_modalias(const struct device *dev, 975 struct kobj_uevent_env *env) 976 { 977 return -ENODEV; 978 } 979 980 static inline int acpi_device_modalias(struct device *dev, 981 char *buf, int size) 982 { 983 return -ENODEV; 984 } 985 986 static inline struct platform_device * 987 acpi_create_platform_device(struct acpi_device *adev, 988 const struct property_entry *properties) 989 { 990 return NULL; 991 } 992 993 static inline bool acpi_dma_supported(const struct acpi_device *adev) 994 { 995 return false; 996 } 997 998 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 999 { 1000 return DEV_DMA_NOT_SUPPORTED; 1001 } 1002 1003 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 1004 { 1005 return -ENODEV; 1006 } 1007 1008 static inline int acpi_dma_configure(struct device *dev, 1009 enum dev_dma_attr attr) 1010 { 1011 return 0; 1012 } 1013 1014 static inline int acpi_dma_configure_id(struct device *dev, 1015 enum dev_dma_attr attr, 1016 const u32 *input_id) 1017 { 1018 return 0; 1019 } 1020 1021 #define ACPI_PTR(_ptr) (NULL) 1022 1023 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1024 { 1025 } 1026 1027 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1028 { 1029 } 1030 1031 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1032 { 1033 return -EINVAL; 1034 } 1035 1036 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1037 { 1038 return -EINVAL; 1039 } 1040 1041 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1042 { 1043 return NULL; 1044 } 1045 1046 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1047 { 1048 return -ENODEV; 1049 } 1050 1051 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1052 { 1053 return ERR_PTR(-ENODEV); 1054 } 1055 1056 static inline int acpi_register_wakeup_handler(int wake_irq, 1057 bool (*wakeup)(void *context), void *context) 1058 { 1059 return -ENXIO; 1060 } 1061 1062 static inline void acpi_unregister_wakeup_handler( 1063 bool (*wakeup)(void *context), void *context) { } 1064 1065 struct acpi_osc_context; 1066 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1067 { 1068 return 0; 1069 } 1070 1071 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1072 { 1073 return 0; 1074 } 1075 1076 static inline bool acpi_sleep_state_supported(u8 sleep_state) 1077 { 1078 return false; 1079 } 1080 1081 #endif /* !CONFIG_ACPI */ 1082 1083 extern void arch_post_acpi_subsys_init(void); 1084 1085 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1086 int acpi_ioapic_add(acpi_handle root); 1087 #else 1088 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1089 #endif 1090 1091 #ifdef CONFIG_ACPI 1092 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1093 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1094 1095 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1096 u32 pm1a_control, u32 pm1b_control); 1097 1098 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1099 u32 val_a, u32 val_b)); 1100 1101 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1102 u32 val_a, u32 val_b); 1103 #ifdef CONFIG_X86 1104 struct acpi_s2idle_dev_ops { 1105 struct list_head list_node; 1106 void (*prepare)(void); 1107 void (*check)(void); 1108 void (*restore)(void); 1109 }; 1110 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1111 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1112 #endif /* CONFIG_X86 */ 1113 #ifndef CONFIG_IA64 1114 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1115 #else 1116 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1117 size_t size) 1118 { 1119 } 1120 #endif /* CONFIG_X86 */ 1121 #else 1122 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1123 #endif 1124 1125 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1126 int acpi_dev_suspend(struct device *dev, bool wakeup); 1127 int acpi_dev_resume(struct device *dev); 1128 int acpi_subsys_runtime_suspend(struct device *dev); 1129 int acpi_subsys_runtime_resume(struct device *dev); 1130 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1131 bool acpi_storage_d3(struct device *dev); 1132 bool acpi_dev_state_d0(struct device *dev); 1133 #else 1134 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1135 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1136 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1137 { 1138 return 0; 1139 } 1140 static inline bool acpi_storage_d3(struct device *dev) 1141 { 1142 return false; 1143 } 1144 static inline bool acpi_dev_state_d0(struct device *dev) 1145 { 1146 return true; 1147 } 1148 #endif 1149 1150 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1151 int acpi_subsys_prepare(struct device *dev); 1152 void acpi_subsys_complete(struct device *dev); 1153 int acpi_subsys_suspend_late(struct device *dev); 1154 int acpi_subsys_suspend_noirq(struct device *dev); 1155 int acpi_subsys_suspend(struct device *dev); 1156 int acpi_subsys_freeze(struct device *dev); 1157 int acpi_subsys_poweroff(struct device *dev); 1158 void acpi_ec_mark_gpe_for_wake(void); 1159 void acpi_ec_set_gpe_wake_mask(u8 action); 1160 int acpi_subsys_restore_early(struct device *dev); 1161 #else 1162 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1163 static inline void acpi_subsys_complete(struct device *dev) {} 1164 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1165 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1166 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1167 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1168 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1169 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1170 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1171 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1172 #endif 1173 1174 #ifdef CONFIG_ACPI 1175 __printf(3, 4) 1176 void acpi_handle_printk(const char *level, acpi_handle handle, 1177 const char *fmt, ...); 1178 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1179 acpi_status status); 1180 #else /* !CONFIG_ACPI */ 1181 static inline __printf(3, 4) void 1182 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1183 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1184 const char *name, 1185 acpi_status status) {} 1186 #endif /* !CONFIG_ACPI */ 1187 1188 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1189 __printf(3, 4) 1190 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1191 #endif 1192 1193 /* 1194 * acpi_handle_<level>: Print message with ACPI prefix and object path 1195 * 1196 * These interfaces acquire the global namespace mutex to obtain an object 1197 * path. In interrupt context, it shows the object path as <n/a>. 1198 */ 1199 #define acpi_handle_emerg(handle, fmt, ...) \ 1200 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1201 #define acpi_handle_alert(handle, fmt, ...) \ 1202 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1203 #define acpi_handle_crit(handle, fmt, ...) \ 1204 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1205 #define acpi_handle_err(handle, fmt, ...) \ 1206 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1207 #define acpi_handle_warn(handle, fmt, ...) \ 1208 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1209 #define acpi_handle_notice(handle, fmt, ...) \ 1210 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1211 #define acpi_handle_info(handle, fmt, ...) \ 1212 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1213 1214 #if defined(DEBUG) 1215 #define acpi_handle_debug(handle, fmt, ...) \ 1216 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1217 #else 1218 #if defined(CONFIG_DYNAMIC_DEBUG) 1219 #define acpi_handle_debug(handle, fmt, ...) \ 1220 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1221 handle, pr_fmt(fmt), ##__VA_ARGS__) 1222 #else 1223 #define acpi_handle_debug(handle, fmt, ...) \ 1224 ({ \ 1225 if (0) \ 1226 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1227 0; \ 1228 }) 1229 #endif 1230 #endif 1231 1232 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1233 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1234 struct acpi_resource_gpio **agpio); 1235 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1236 struct acpi_resource_gpio **agpio); 1237 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1238 bool *wake_capable); 1239 #else 1240 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1241 struct acpi_resource_gpio **agpio) 1242 { 1243 return false; 1244 } 1245 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1246 struct acpi_resource_gpio **agpio) 1247 { 1248 return false; 1249 } 1250 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1251 int index, bool *wake_capable) 1252 { 1253 return -ENXIO; 1254 } 1255 #endif 1256 1257 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1258 bool *wake_capable) 1259 { 1260 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1261 } 1262 1263 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1264 int index) 1265 { 1266 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1267 } 1268 1269 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1270 { 1271 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1272 } 1273 1274 /* Device properties */ 1275 1276 #ifdef CONFIG_ACPI 1277 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1278 acpi_object_type type, const union acpi_object **obj); 1279 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1280 const char *name, size_t index, size_t num_args, 1281 struct fwnode_reference_args *args); 1282 1283 static inline int acpi_node_get_property_reference( 1284 const struct fwnode_handle *fwnode, 1285 const char *name, size_t index, 1286 struct fwnode_reference_args *args) 1287 { 1288 return __acpi_node_get_property_reference(fwnode, name, index, 1289 NR_FWNODE_REFERENCE_ARGS, args); 1290 } 1291 1292 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1293 { 1294 return !list_empty(&adev->data.properties); 1295 } 1296 1297 struct acpi_device_properties * 1298 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1299 union acpi_object *properties); 1300 1301 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1302 void **valptr); 1303 1304 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1305 struct fwnode_handle *child); 1306 1307 struct acpi_probe_entry; 1308 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1309 struct acpi_probe_entry *); 1310 1311 #define ACPI_TABLE_ID_LEN 5 1312 1313 /** 1314 * struct acpi_probe_entry - boot-time probing entry 1315 * @id: ACPI table name 1316 * @type: Optional subtable type to match 1317 * (if @id contains subtables) 1318 * @subtable_valid: Optional callback to check the validity of 1319 * the subtable 1320 * @probe_table: Callback to the driver being probed when table 1321 * match is successful 1322 * @probe_subtbl: Callback to the driver being probed when table and 1323 * subtable match (and optional callback is successful) 1324 * @driver_data: Sideband data provided back to the driver 1325 */ 1326 struct acpi_probe_entry { 1327 __u8 id[ACPI_TABLE_ID_LEN]; 1328 __u8 type; 1329 acpi_probe_entry_validate_subtbl subtable_valid; 1330 union { 1331 acpi_tbl_table_handler probe_table; 1332 acpi_tbl_entry_handler probe_subtbl; 1333 }; 1334 kernel_ulong_t driver_data; 1335 }; 1336 1337 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1338 valid, data, fn) \ 1339 static const struct acpi_probe_entry __acpi_probe_##name \ 1340 __used __section("__" #table "_acpi_probe_table") = { \ 1341 .id = table_id, \ 1342 .type = subtable, \ 1343 .subtable_valid = valid, \ 1344 .probe_table = fn, \ 1345 .driver_data = data, \ 1346 } 1347 1348 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1349 subtable, valid, data, fn) \ 1350 static const struct acpi_probe_entry __acpi_probe_##name \ 1351 __used __section("__" #table "_acpi_probe_table") = { \ 1352 .id = table_id, \ 1353 .type = subtable, \ 1354 .subtable_valid = valid, \ 1355 .probe_subtbl = fn, \ 1356 .driver_data = data, \ 1357 } 1358 1359 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1360 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1361 1362 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1363 1364 #define acpi_probe_device_table(t) \ 1365 ({ \ 1366 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1367 ACPI_PROBE_TABLE_END(t); \ 1368 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1369 (&ACPI_PROBE_TABLE_END(t) - \ 1370 &ACPI_PROBE_TABLE(t))); \ 1371 }) 1372 #else 1373 static inline int acpi_dev_get_property(struct acpi_device *adev, 1374 const char *name, acpi_object_type type, 1375 const union acpi_object **obj) 1376 { 1377 return -ENXIO; 1378 } 1379 1380 static inline int 1381 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1382 const char *name, size_t index, size_t num_args, 1383 struct fwnode_reference_args *args) 1384 { 1385 return -ENXIO; 1386 } 1387 1388 static inline int 1389 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1390 const char *name, size_t index, 1391 struct fwnode_reference_args *args) 1392 { 1393 return -ENXIO; 1394 } 1395 1396 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1397 const char *propname, 1398 void **valptr) 1399 { 1400 return -ENXIO; 1401 } 1402 1403 static inline struct fwnode_handle * 1404 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1405 struct fwnode_handle *child) 1406 { 1407 return NULL; 1408 } 1409 1410 static inline struct fwnode_handle * 1411 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1412 struct fwnode_handle *prev) 1413 { 1414 return ERR_PTR(-ENXIO); 1415 } 1416 1417 static inline int 1418 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1419 struct fwnode_handle **remote, 1420 struct fwnode_handle **port, 1421 struct fwnode_handle **endpoint) 1422 { 1423 return -ENXIO; 1424 } 1425 1426 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1427 static const void * __acpi_table_##name[] \ 1428 __attribute__((unused)) \ 1429 = { (void *) table_id, \ 1430 (void *) subtable, \ 1431 (void *) valid, \ 1432 (void *) fn, \ 1433 (void *) data } 1434 1435 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1436 #endif 1437 1438 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1439 void acpi_table_upgrade(void); 1440 #else 1441 static inline void acpi_table_upgrade(void) { } 1442 #endif 1443 1444 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1445 extern bool acpi_has_watchdog(void); 1446 #else 1447 static inline bool acpi_has_watchdog(void) { return false; } 1448 #endif 1449 1450 #ifdef CONFIG_ACPI_SPCR_TABLE 1451 extern bool qdf2400_e44_present; 1452 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1453 #else 1454 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1455 { 1456 return 0; 1457 } 1458 #endif 1459 1460 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1461 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1462 #else 1463 static inline 1464 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1465 { 1466 return -EINVAL; 1467 } 1468 #endif 1469 1470 #ifdef CONFIG_ACPI_LPIT 1471 int lpit_read_residency_count_address(u64 *address); 1472 #else 1473 static inline int lpit_read_residency_count_address(u64 *address) 1474 { 1475 return -EINVAL; 1476 } 1477 #endif 1478 1479 #ifdef CONFIG_ACPI_PPTT 1480 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1481 int find_acpi_cpu_topology(unsigned int cpu, int level); 1482 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1483 int find_acpi_cpu_topology_package(unsigned int cpu); 1484 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1485 #else 1486 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1487 { 1488 return -EINVAL; 1489 } 1490 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1491 { 1492 return -EINVAL; 1493 } 1494 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1495 { 1496 return -EINVAL; 1497 } 1498 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1499 { 1500 return -EINVAL; 1501 } 1502 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1503 { 1504 return -EINVAL; 1505 } 1506 #endif 1507 1508 #ifdef CONFIG_ARM64 1509 void acpi_arm_init(void); 1510 #else 1511 static inline void acpi_arm_init(void) { } 1512 #endif 1513 1514 #ifdef CONFIG_ACPI_PCC 1515 void acpi_init_pcc(void); 1516 #else 1517 static inline void acpi_init_pcc(void) { } 1518 #endif 1519 1520 #ifdef CONFIG_ACPI_FFH 1521 void acpi_init_ffh(void); 1522 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1523 void **region_ctxt); 1524 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1525 void *region_context); 1526 #else 1527 static inline void acpi_init_ffh(void) { } 1528 #endif 1529 1530 #ifdef CONFIG_ACPI 1531 extern void acpi_device_notify(struct device *dev); 1532 extern void acpi_device_notify_remove(struct device *dev); 1533 #else 1534 static inline void acpi_device_notify(struct device *dev) { } 1535 static inline void acpi_device_notify_remove(struct device *dev) { } 1536 #endif 1537 1538 #endif /*_LINUX_ACPI_H*/ 1539