1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi.h - ACPI Interface 4 * 5 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 6 */ 7 8 #ifndef _LINUX_ACPI_H 9 #define _LINUX_ACPI_H 10 11 #include <linux/errno.h> 12 #include <linux/ioport.h> /* for struct resource */ 13 #include <linux/resource_ext.h> 14 #include <linux/device.h> 15 #include <linux/mod_devicetable.h> 16 #include <linux/property.h> 17 #include <linux/uuid.h> 18 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 pnpacpi_disabled; 481 482 #define PXM_INVAL (-1) 483 484 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 485 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 486 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 487 struct resource_win *win); 488 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 489 struct resource_win *win); 490 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 491 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 492 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 493 struct resource *res); 494 495 void acpi_dev_free_resource_list(struct list_head *list); 496 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 497 int (*preproc)(struct acpi_resource *, void *), 498 void *preproc_data); 499 int acpi_dev_get_dma_resources(struct acpi_device *adev, 500 struct list_head *list); 501 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 502 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 503 unsigned long types); 504 505 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 506 void *arg) 507 { 508 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 509 } 510 511 struct acpi_device *acpi_resource_consumer(struct resource *res); 512 513 int acpi_check_resource_conflict(const struct resource *res); 514 515 int acpi_check_region(resource_size_t start, resource_size_t n, 516 const char *name); 517 518 int acpi_resources_are_enforced(void); 519 520 #ifdef CONFIG_HIBERNATION 521 extern int acpi_check_s4_hw_signature; 522 #endif 523 524 #ifdef CONFIG_PM_SLEEP 525 void __init acpi_old_suspend_ordering(void); 526 void __init acpi_nvs_nosave(void); 527 void __init acpi_nvs_nosave_s3(void); 528 void __init acpi_sleep_no_blacklist(void); 529 #endif /* CONFIG_PM_SLEEP */ 530 531 int acpi_register_wakeup_handler( 532 int wake_irq, bool (*wakeup)(void *context), void *context); 533 void acpi_unregister_wakeup_handler( 534 bool (*wakeup)(void *context), void *context); 535 536 struct acpi_osc_context { 537 char *uuid_str; /* UUID string */ 538 int rev; 539 struct acpi_buffer cap; /* list of DWORD capabilities */ 540 struct acpi_buffer ret; /* free by caller if success */ 541 }; 542 543 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 544 545 /* Number of _OSC capability DWORDS depends on bridge type */ 546 #define OSC_PCI_CAPABILITY_DWORDS 3 547 #define OSC_CXL_CAPABILITY_DWORDS 5 548 549 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 550 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 551 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 552 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 553 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 554 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 555 556 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 557 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 558 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 559 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 560 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 561 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 562 563 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 564 #define OSC_SB_PAD_SUPPORT 0x00000001 565 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 566 #define OSC_SB_PR3_SUPPORT 0x00000004 567 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 568 #define OSC_SB_APEI_SUPPORT 0x00000010 569 #define OSC_SB_CPC_SUPPORT 0x00000020 570 #define OSC_SB_CPCV2_SUPPORT 0x00000040 571 #define OSC_SB_PCLPI_SUPPORT 0x00000080 572 #define OSC_SB_OSLPI_SUPPORT 0x00000100 573 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 574 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 575 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 576 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 577 #define OSC_SB_PRM_SUPPORT 0x00200000 578 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 579 580 extern bool osc_sb_apei_support_acked; 581 extern bool osc_pc_lpi_support_confirmed; 582 extern bool osc_sb_native_usb4_support_confirmed; 583 extern bool osc_sb_cppc2_support_acked; 584 extern bool osc_cpc_flexible_adr_space_confirmed; 585 586 /* USB4 Capabilities */ 587 #define OSC_USB_USB3_TUNNELING 0x00000001 588 #define OSC_USB_DP_TUNNELING 0x00000002 589 #define OSC_USB_PCIE_TUNNELING 0x00000004 590 #define OSC_USB_XDOMAIN 0x00000008 591 592 extern u32 osc_sb_native_usb4_control; 593 594 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 595 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 596 #define OSC_PCI_ASPM_SUPPORT 0x00000002 597 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 598 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 599 #define OSC_PCI_MSI_SUPPORT 0x00000010 600 #define OSC_PCI_EDR_SUPPORT 0x00000080 601 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 602 603 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 604 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 605 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 606 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 607 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 608 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 609 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 610 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 611 612 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 613 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 614 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 615 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 616 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 617 618 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 619 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 620 621 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 622 { 623 u32 *ret = context->ret.pointer; 624 625 return ret[OSC_CONTROL_DWORD]; 626 } 627 628 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 629 { 630 u32 *ret = context->ret.pointer; 631 632 return ret[OSC_EXT_CONTROL_DWORD]; 633 } 634 635 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 636 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 637 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 638 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 639 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 640 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 641 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 642 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 643 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 644 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 645 646 /* Enable _OST when all relevant hotplug operations are enabled */ 647 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 648 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 649 defined(CONFIG_ACPI_CONTAINER) 650 #define ACPI_HOTPLUG_OST 651 #endif 652 653 /* _OST Source Event Code (OSPM Action) */ 654 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 655 #define ACPI_OST_EC_OSPM_EJECT 0x103 656 #define ACPI_OST_EC_OSPM_INSERTION 0x200 657 658 /* _OST General Processing Status Code */ 659 #define ACPI_OST_SC_SUCCESS 0x0 660 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 661 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 662 663 /* _OST OS Shutdown Processing (0x100) Status Code */ 664 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 665 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 666 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 667 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 668 669 /* _OST Ejection Request (0x3, 0x103) Status Code */ 670 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 671 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 672 #define ACPI_OST_SC_DEVICE_BUSY 0x82 673 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 674 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 675 676 /* _OST Insertion Request (0x200) Status Code */ 677 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 678 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 679 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 680 681 enum acpi_predicate { 682 all_versions, 683 less_than_or_equal, 684 equal, 685 greater_than_or_equal, 686 }; 687 688 /* Table must be terminted by a NULL entry */ 689 struct acpi_platform_list { 690 char oem_id[ACPI_OEM_ID_SIZE+1]; 691 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 692 u32 oem_revision; 693 char *table; 694 enum acpi_predicate pred; 695 char *reason; 696 u32 data; 697 }; 698 int acpi_match_platform_list(const struct acpi_platform_list *plat); 699 700 extern void acpi_early_init(void); 701 extern void acpi_subsystem_init(void); 702 703 extern int acpi_nvs_register(__u64 start, __u64 size); 704 705 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 706 void *data); 707 708 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, 709 const struct acpi_device *adev); 710 711 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 712 const struct device *dev); 713 714 const void *acpi_device_get_match_data(const struct device *dev); 715 extern bool acpi_driver_match_device(struct device *dev, 716 const struct device_driver *drv); 717 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *); 718 int acpi_device_modalias(struct device *, char *, int); 719 720 struct platform_device *acpi_create_platform_device(struct acpi_device *, 721 const struct property_entry *); 722 #define ACPI_PTR(_ptr) (_ptr) 723 724 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 725 { 726 adev->flags.visited = true; 727 } 728 729 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 730 { 731 adev->flags.visited = false; 732 } 733 734 enum acpi_reconfig_event { 735 ACPI_RECONFIG_DEVICE_ADD = 0, 736 ACPI_RECONFIG_DEVICE_REMOVE, 737 }; 738 739 int acpi_reconfig_notifier_register(struct notifier_block *nb); 740 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 741 742 #ifdef CONFIG_ACPI_GTDT 743 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 744 int acpi_gtdt_map_ppi(int type); 745 bool acpi_gtdt_c3stop(int type); 746 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 747 #endif 748 749 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 750 static inline void acpi_arch_set_root_pointer(u64 addr) 751 { 752 } 753 #endif 754 755 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 756 static inline u64 acpi_arch_get_root_pointer(void) 757 { 758 return 0; 759 } 760 #endif 761 762 int acpi_get_local_address(acpi_handle handle, u32 *addr); 763 const char *acpi_get_subsystem_id(acpi_handle handle); 764 765 #else /* !CONFIG_ACPI */ 766 767 #define acpi_disabled 1 768 769 #define ACPI_COMPANION(dev) (NULL) 770 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 771 #define ACPI_HANDLE(dev) (NULL) 772 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 773 774 #include <acpi/acpi_numa.h> 775 776 struct fwnode_handle; 777 778 static inline bool acpi_dev_found(const char *hid) 779 { 780 return false; 781 } 782 783 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 784 { 785 return false; 786 } 787 788 struct acpi_device; 789 790 static inline bool 791 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 792 { 793 return false; 794 } 795 796 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 797 { 798 return -ENODEV; 799 } 800 801 static inline struct acpi_device * 802 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 803 { 804 return NULL; 805 } 806 807 static inline bool acpi_reduced_hardware(void) 808 { 809 return false; 810 } 811 812 static inline void acpi_dev_put(struct acpi_device *adev) {} 813 814 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 815 { 816 return false; 817 } 818 819 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 820 { 821 return false; 822 } 823 824 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 825 { 826 return NULL; 827 } 828 829 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 830 { 831 return false; 832 } 833 834 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 835 { 836 return NULL; 837 } 838 839 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 840 const char *name) 841 { 842 return false; 843 } 844 845 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 846 { 847 return NULL; 848 } 849 850 static inline bool has_acpi_companion(struct device *dev) 851 { 852 return false; 853 } 854 855 static inline void acpi_preset_companion(struct device *dev, 856 struct acpi_device *parent, u64 addr) 857 { 858 } 859 860 static inline const char *acpi_dev_name(struct acpi_device *adev) 861 { 862 return NULL; 863 } 864 865 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 866 { 867 return NULL; 868 } 869 870 static inline void acpi_early_init(void) { } 871 static inline void acpi_subsystem_init(void) { } 872 873 static inline int early_acpi_boot_init(void) 874 { 875 return 0; 876 } 877 static inline int acpi_boot_init(void) 878 { 879 return 0; 880 } 881 882 static inline void acpi_boot_table_prepare(void) 883 { 884 } 885 886 static inline void acpi_boot_table_init(void) 887 { 888 } 889 890 static inline int acpi_mps_check(void) 891 { 892 return 0; 893 } 894 895 static inline int acpi_check_resource_conflict(struct resource *res) 896 { 897 return 0; 898 } 899 900 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 901 const char *name) 902 { 903 return 0; 904 } 905 906 struct acpi_table_header; 907 static inline int acpi_table_parse(char *id, 908 int (*handler)(struct acpi_table_header *)) 909 { 910 return -ENODEV; 911 } 912 913 static inline int acpi_nvs_register(__u64 start, __u64 size) 914 { 915 return 0; 916 } 917 918 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 919 void *data) 920 { 921 return 0; 922 } 923 924 struct acpi_device_id; 925 926 static inline const struct acpi_device_id *acpi_match_acpi_device( 927 const struct acpi_device_id *ids, const struct acpi_device *adev) 928 { 929 return NULL; 930 } 931 932 static inline const struct acpi_device_id *acpi_match_device( 933 const struct acpi_device_id *ids, const struct device *dev) 934 { 935 return NULL; 936 } 937 938 static inline const void *acpi_device_get_match_data(const struct device *dev) 939 { 940 return NULL; 941 } 942 943 static inline bool acpi_driver_match_device(struct device *dev, 944 const struct device_driver *drv) 945 { 946 return false; 947 } 948 949 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 950 u64 rev, u64 funcs) 951 { 952 return false; 953 } 954 955 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 956 const guid_t *guid, 957 u64 rev, u64 func, 958 union acpi_object *argv4) 959 { 960 return NULL; 961 } 962 963 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 964 const guid_t *guid, 965 u64 rev, u64 func, 966 union acpi_object *argv4, 967 acpi_object_type type) 968 { 969 return NULL; 970 } 971 972 static inline int acpi_device_uevent_modalias(const struct device *dev, 973 struct kobj_uevent_env *env) 974 { 975 return -ENODEV; 976 } 977 978 static inline int acpi_device_modalias(struct device *dev, 979 char *buf, int size) 980 { 981 return -ENODEV; 982 } 983 984 static inline struct platform_device * 985 acpi_create_platform_device(struct acpi_device *adev, 986 const struct property_entry *properties) 987 { 988 return NULL; 989 } 990 991 static inline bool acpi_dma_supported(const struct acpi_device *adev) 992 { 993 return false; 994 } 995 996 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 997 { 998 return DEV_DMA_NOT_SUPPORTED; 999 } 1000 1001 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 1002 { 1003 return -ENODEV; 1004 } 1005 1006 static inline int acpi_dma_configure(struct device *dev, 1007 enum dev_dma_attr attr) 1008 { 1009 return 0; 1010 } 1011 1012 static inline int acpi_dma_configure_id(struct device *dev, 1013 enum dev_dma_attr attr, 1014 const u32 *input_id) 1015 { 1016 return 0; 1017 } 1018 1019 #define ACPI_PTR(_ptr) (NULL) 1020 1021 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1022 { 1023 } 1024 1025 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1026 { 1027 } 1028 1029 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1030 { 1031 return -EINVAL; 1032 } 1033 1034 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1035 { 1036 return -EINVAL; 1037 } 1038 1039 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1040 { 1041 return NULL; 1042 } 1043 1044 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1045 { 1046 return -ENODEV; 1047 } 1048 1049 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1050 { 1051 return ERR_PTR(-ENODEV); 1052 } 1053 1054 static inline int acpi_register_wakeup_handler(int wake_irq, 1055 bool (*wakeup)(void *context), void *context) 1056 { 1057 return -ENXIO; 1058 } 1059 1060 static inline void acpi_unregister_wakeup_handler( 1061 bool (*wakeup)(void *context), void *context) { } 1062 1063 struct acpi_osc_context; 1064 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1065 { 1066 return 0; 1067 } 1068 1069 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1070 { 1071 return 0; 1072 } 1073 1074 static inline bool acpi_sleep_state_supported(u8 sleep_state) 1075 { 1076 return false; 1077 } 1078 1079 #endif /* !CONFIG_ACPI */ 1080 1081 extern void arch_post_acpi_subsys_init(void); 1082 1083 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1084 int acpi_ioapic_add(acpi_handle root); 1085 #else 1086 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1087 #endif 1088 1089 #ifdef CONFIG_ACPI 1090 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1091 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1092 1093 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1094 u32 pm1a_control, u32 pm1b_control); 1095 1096 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1097 u32 val_a, u32 val_b)); 1098 1099 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1100 u32 val_a, u32 val_b); 1101 #if defined(CONFIG_SUSPEND) && defined(CONFIG_X86) 1102 struct acpi_s2idle_dev_ops { 1103 struct list_head list_node; 1104 void (*prepare)(void); 1105 void (*check)(void); 1106 void (*restore)(void); 1107 }; 1108 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1109 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1110 int acpi_get_lps0_constraint(struct acpi_device *adev); 1111 #else /* CONFIG_SUSPEND && CONFIG_X86 */ 1112 static inline int acpi_get_lps0_constraint(struct device *dev) 1113 { 1114 return ACPI_STATE_UNKNOWN; 1115 } 1116 #endif /* CONFIG_SUSPEND && CONFIG_X86 */ 1117 #ifndef CONFIG_IA64 1118 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1119 #else 1120 static inline void arch_reserve_mem_area(acpi_physical_address addr, 1121 size_t size) 1122 { 1123 } 1124 #endif /* CONFIG_X86 */ 1125 #else 1126 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1127 #endif 1128 1129 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1130 int acpi_dev_suspend(struct device *dev, bool wakeup); 1131 int acpi_dev_resume(struct device *dev); 1132 int acpi_subsys_runtime_suspend(struct device *dev); 1133 int acpi_subsys_runtime_resume(struct device *dev); 1134 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1135 bool acpi_storage_d3(struct device *dev); 1136 bool acpi_dev_state_d0(struct device *dev); 1137 #else 1138 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1139 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1140 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1141 { 1142 return 0; 1143 } 1144 static inline bool acpi_storage_d3(struct device *dev) 1145 { 1146 return false; 1147 } 1148 static inline bool acpi_dev_state_d0(struct device *dev) 1149 { 1150 return true; 1151 } 1152 #endif 1153 1154 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1155 int acpi_subsys_prepare(struct device *dev); 1156 void acpi_subsys_complete(struct device *dev); 1157 int acpi_subsys_suspend_late(struct device *dev); 1158 int acpi_subsys_suspend_noirq(struct device *dev); 1159 int acpi_subsys_suspend(struct device *dev); 1160 int acpi_subsys_freeze(struct device *dev); 1161 int acpi_subsys_poweroff(struct device *dev); 1162 void acpi_ec_mark_gpe_for_wake(void); 1163 void acpi_ec_set_gpe_wake_mask(u8 action); 1164 int acpi_subsys_restore_early(struct device *dev); 1165 #else 1166 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1167 static inline void acpi_subsys_complete(struct device *dev) {} 1168 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1169 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1170 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1171 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1172 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1173 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1174 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1175 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1176 #endif 1177 1178 #ifdef CONFIG_ACPI 1179 __printf(3, 4) 1180 void acpi_handle_printk(const char *level, acpi_handle handle, 1181 const char *fmt, ...); 1182 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1183 acpi_status status); 1184 #else /* !CONFIG_ACPI */ 1185 static inline __printf(3, 4) void 1186 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1187 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1188 const char *name, 1189 acpi_status status) {} 1190 #endif /* !CONFIG_ACPI */ 1191 1192 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1193 __printf(3, 4) 1194 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1195 #endif 1196 1197 /* 1198 * acpi_handle_<level>: Print message with ACPI prefix and object path 1199 * 1200 * These interfaces acquire the global namespace mutex to obtain an object 1201 * path. In interrupt context, it shows the object path as <n/a>. 1202 */ 1203 #define acpi_handle_emerg(handle, fmt, ...) \ 1204 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1205 #define acpi_handle_alert(handle, fmt, ...) \ 1206 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1207 #define acpi_handle_crit(handle, fmt, ...) \ 1208 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1209 #define acpi_handle_err(handle, fmt, ...) \ 1210 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1211 #define acpi_handle_warn(handle, fmt, ...) \ 1212 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1213 #define acpi_handle_notice(handle, fmt, ...) \ 1214 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1215 #define acpi_handle_info(handle, fmt, ...) \ 1216 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1217 1218 #if defined(DEBUG) 1219 #define acpi_handle_debug(handle, fmt, ...) \ 1220 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1221 #else 1222 #if defined(CONFIG_DYNAMIC_DEBUG) 1223 #define acpi_handle_debug(handle, fmt, ...) \ 1224 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1225 handle, pr_fmt(fmt), ##__VA_ARGS__) 1226 #else 1227 #define acpi_handle_debug(handle, fmt, ...) \ 1228 ({ \ 1229 if (0) \ 1230 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1231 0; \ 1232 }) 1233 #endif 1234 #endif 1235 1236 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1237 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1238 struct acpi_resource_gpio **agpio); 1239 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1240 struct acpi_resource_gpio **agpio); 1241 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1242 bool *wake_capable); 1243 #else 1244 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1245 struct acpi_resource_gpio **agpio) 1246 { 1247 return false; 1248 } 1249 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1250 struct acpi_resource_gpio **agpio) 1251 { 1252 return false; 1253 } 1254 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1255 int index, bool *wake_capable) 1256 { 1257 return -ENXIO; 1258 } 1259 #endif 1260 1261 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1262 bool *wake_capable) 1263 { 1264 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1265 } 1266 1267 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1268 int index) 1269 { 1270 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1271 } 1272 1273 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1274 { 1275 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1276 } 1277 1278 /* Device properties */ 1279 1280 #ifdef CONFIG_ACPI 1281 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1282 acpi_object_type type, const union acpi_object **obj); 1283 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1284 const char *name, size_t index, size_t num_args, 1285 struct fwnode_reference_args *args); 1286 1287 static inline int acpi_node_get_property_reference( 1288 const struct fwnode_handle *fwnode, 1289 const char *name, size_t index, 1290 struct fwnode_reference_args *args) 1291 { 1292 return __acpi_node_get_property_reference(fwnode, name, index, 1293 NR_FWNODE_REFERENCE_ARGS, args); 1294 } 1295 1296 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1297 { 1298 return !list_empty(&adev->data.properties); 1299 } 1300 1301 struct acpi_device_properties * 1302 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1303 union acpi_object *properties); 1304 1305 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1306 void **valptr); 1307 1308 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1309 struct fwnode_handle *child); 1310 1311 struct acpi_probe_entry; 1312 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1313 struct acpi_probe_entry *); 1314 1315 #define ACPI_TABLE_ID_LEN 5 1316 1317 /** 1318 * struct acpi_probe_entry - boot-time probing entry 1319 * @id: ACPI table name 1320 * @type: Optional subtable type to match 1321 * (if @id contains subtables) 1322 * @subtable_valid: Optional callback to check the validity of 1323 * the subtable 1324 * @probe_table: Callback to the driver being probed when table 1325 * match is successful 1326 * @probe_subtbl: Callback to the driver being probed when table and 1327 * subtable match (and optional callback is successful) 1328 * @driver_data: Sideband data provided back to the driver 1329 */ 1330 struct acpi_probe_entry { 1331 __u8 id[ACPI_TABLE_ID_LEN]; 1332 __u8 type; 1333 acpi_probe_entry_validate_subtbl subtable_valid; 1334 union { 1335 acpi_tbl_table_handler probe_table; 1336 acpi_tbl_entry_handler probe_subtbl; 1337 }; 1338 kernel_ulong_t driver_data; 1339 }; 1340 1341 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1342 valid, data, fn) \ 1343 static const struct acpi_probe_entry __acpi_probe_##name \ 1344 __used __section("__" #table "_acpi_probe_table") = { \ 1345 .id = table_id, \ 1346 .type = subtable, \ 1347 .subtable_valid = valid, \ 1348 .probe_table = fn, \ 1349 .driver_data = data, \ 1350 } 1351 1352 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1353 subtable, valid, data, fn) \ 1354 static const struct acpi_probe_entry __acpi_probe_##name \ 1355 __used __section("__" #table "_acpi_probe_table") = { \ 1356 .id = table_id, \ 1357 .type = subtable, \ 1358 .subtable_valid = valid, \ 1359 .probe_subtbl = fn, \ 1360 .driver_data = data, \ 1361 } 1362 1363 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1364 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1365 1366 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1367 1368 #define acpi_probe_device_table(t) \ 1369 ({ \ 1370 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1371 ACPI_PROBE_TABLE_END(t); \ 1372 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1373 (&ACPI_PROBE_TABLE_END(t) - \ 1374 &ACPI_PROBE_TABLE(t))); \ 1375 }) 1376 #else 1377 static inline int acpi_dev_get_property(struct acpi_device *adev, 1378 const char *name, acpi_object_type type, 1379 const union acpi_object **obj) 1380 { 1381 return -ENXIO; 1382 } 1383 1384 static inline int 1385 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1386 const char *name, size_t index, size_t num_args, 1387 struct fwnode_reference_args *args) 1388 { 1389 return -ENXIO; 1390 } 1391 1392 static inline int 1393 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1394 const char *name, size_t index, 1395 struct fwnode_reference_args *args) 1396 { 1397 return -ENXIO; 1398 } 1399 1400 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1401 const char *propname, 1402 void **valptr) 1403 { 1404 return -ENXIO; 1405 } 1406 1407 static inline struct fwnode_handle * 1408 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1409 struct fwnode_handle *child) 1410 { 1411 return NULL; 1412 } 1413 1414 static inline struct fwnode_handle * 1415 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1416 struct fwnode_handle *prev) 1417 { 1418 return ERR_PTR(-ENXIO); 1419 } 1420 1421 static inline int 1422 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1423 struct fwnode_handle **remote, 1424 struct fwnode_handle **port, 1425 struct fwnode_handle **endpoint) 1426 { 1427 return -ENXIO; 1428 } 1429 1430 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1431 static const void * __acpi_table_##name[] \ 1432 __attribute__((unused)) \ 1433 = { (void *) table_id, \ 1434 (void *) subtable, \ 1435 (void *) valid, \ 1436 (void *) fn, \ 1437 (void *) data } 1438 1439 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1440 #endif 1441 1442 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1443 void acpi_table_upgrade(void); 1444 #else 1445 static inline void acpi_table_upgrade(void) { } 1446 #endif 1447 1448 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1449 extern bool acpi_has_watchdog(void); 1450 #else 1451 static inline bool acpi_has_watchdog(void) { return false; } 1452 #endif 1453 1454 #ifdef CONFIG_ACPI_SPCR_TABLE 1455 extern bool qdf2400_e44_present; 1456 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1457 #else 1458 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1459 { 1460 return 0; 1461 } 1462 #endif 1463 1464 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1465 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1466 #else 1467 static inline 1468 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1469 { 1470 return -EINVAL; 1471 } 1472 #endif 1473 1474 #ifdef CONFIG_ACPI_LPIT 1475 int lpit_read_residency_count_address(u64 *address); 1476 #else 1477 static inline int lpit_read_residency_count_address(u64 *address) 1478 { 1479 return -EINVAL; 1480 } 1481 #endif 1482 1483 #ifdef CONFIG_ACPI_PPTT 1484 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1485 int find_acpi_cpu_topology(unsigned int cpu, int level); 1486 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1487 int find_acpi_cpu_topology_package(unsigned int cpu); 1488 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1489 #else 1490 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1491 { 1492 return -EINVAL; 1493 } 1494 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1495 { 1496 return -EINVAL; 1497 } 1498 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1499 { 1500 return -EINVAL; 1501 } 1502 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1503 { 1504 return -EINVAL; 1505 } 1506 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1507 { 1508 return -EINVAL; 1509 } 1510 #endif 1511 1512 #ifdef CONFIG_ARM64 1513 void acpi_arm_init(void); 1514 #else 1515 static inline void acpi_arm_init(void) { } 1516 #endif 1517 1518 #ifdef CONFIG_ACPI_PCC 1519 void acpi_init_pcc(void); 1520 #else 1521 static inline void acpi_init_pcc(void) { } 1522 #endif 1523 1524 #ifdef CONFIG_ACPI_FFH 1525 void acpi_init_ffh(void); 1526 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1527 void **region_ctxt); 1528 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1529 void *region_context); 1530 #else 1531 static inline void acpi_init_ffh(void) { } 1532 #endif 1533 1534 #ifdef CONFIG_ACPI 1535 extern void acpi_device_notify(struct device *dev); 1536 extern void acpi_device_notify_remove(struct device *dev); 1537 #else 1538 static inline void acpi_device_notify(struct device *dev) { } 1539 static inline void acpi_device_notify_remove(struct device *dev) { } 1540 #endif 1541 1542 #endif /*_LINUX_ACPI_H*/ 1543