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 #include <linux/fw_table.h> 34 35 #include <acpi/acpi_bus.h> 36 #include <acpi/acpi_drivers.h> 37 #include <acpi/acpi_numa.h> 38 #include <acpi/acpi_io.h> 39 #include <asm/acpi.h> 40 41 #ifdef CONFIG_ACPI_TABLE_LIB 42 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI) 43 #define __init_or_acpilib 44 #define __initdata_or_acpilib 45 #else 46 #define EXPORT_SYMBOL_ACPI_LIB(x) 47 #define __init_or_acpilib __init 48 #define __initdata_or_acpilib __initdata 49 #endif 50 51 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 52 { 53 return adev ? adev->handle : NULL; 54 } 55 56 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 57 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 58 acpi_fwnode_handle(adev) : NULL) 59 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 60 #define ACPI_HANDLE_FWNODE(fwnode) \ 61 acpi_device_handle(to_acpi_device_node(fwnode)) 62 63 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 64 { 65 struct fwnode_handle *fwnode; 66 67 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 68 if (!fwnode) 69 return NULL; 70 71 fwnode_init(fwnode, &acpi_static_fwnode_ops); 72 73 return fwnode; 74 } 75 76 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 77 { 78 if (WARN_ON(!is_acpi_static_node(fwnode))) 79 return; 80 81 kfree(fwnode); 82 } 83 84 static inline bool has_acpi_companion(struct device *dev) 85 { 86 return is_acpi_device_node(dev->fwnode); 87 } 88 89 static inline void acpi_preset_companion(struct device *dev, 90 struct acpi_device *parent, u64 addr) 91 { 92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false)); 93 } 94 95 static inline const char *acpi_dev_name(struct acpi_device *adev) 96 { 97 return dev_name(&adev->dev); 98 } 99 100 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 101 102 enum acpi_irq_model_id { 103 ACPI_IRQ_MODEL_PIC = 0, 104 ACPI_IRQ_MODEL_IOAPIC, 105 ACPI_IRQ_MODEL_IOSAPIC, 106 ACPI_IRQ_MODEL_PLATFORM, 107 ACPI_IRQ_MODEL_GIC, 108 ACPI_IRQ_MODEL_LPIC, 109 ACPI_IRQ_MODEL_COUNT 110 }; 111 112 extern enum acpi_irq_model_id acpi_irq_model; 113 114 enum acpi_interrupt_id { 115 ACPI_INTERRUPT_PMI = 1, 116 ACPI_INTERRUPT_INIT, 117 ACPI_INTERRUPT_CPEI, 118 ACPI_INTERRUPT_COUNT 119 }; 120 121 #define ACPI_SPACE_MEM 0 122 123 enum acpi_address_range_id { 124 ACPI_ADDRESS_RANGE_MEMORY = 1, 125 ACPI_ADDRESS_RANGE_RESERVED = 2, 126 ACPI_ADDRESS_RANGE_ACPI = 3, 127 ACPI_ADDRESS_RANGE_NVS = 4, 128 ACPI_ADDRESS_RANGE_COUNT 129 }; 130 131 132 /* Table Handlers */ 133 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 134 135 /* Debugger support */ 136 137 struct acpi_debugger_ops { 138 int (*create_thread)(acpi_osd_exec_callback function, void *context); 139 ssize_t (*write_log)(const char *msg); 140 ssize_t (*read_cmd)(char *buffer, size_t length); 141 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 142 int (*notify_command_complete)(void); 143 }; 144 145 struct acpi_debugger { 146 const struct acpi_debugger_ops *ops; 147 struct module *owner; 148 struct mutex lock; 149 }; 150 151 #ifdef CONFIG_ACPI_DEBUGGER 152 int __init acpi_debugger_init(void); 153 int acpi_register_debugger(struct module *owner, 154 const struct acpi_debugger_ops *ops); 155 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 156 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 157 ssize_t acpi_debugger_write_log(const char *msg); 158 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 159 int acpi_debugger_wait_command_ready(void); 160 int acpi_debugger_notify_command_complete(void); 161 #else 162 static inline int acpi_debugger_init(void) 163 { 164 return -ENODEV; 165 } 166 167 static inline int acpi_register_debugger(struct module *owner, 168 const struct acpi_debugger_ops *ops) 169 { 170 return -ENODEV; 171 } 172 173 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 174 { 175 } 176 177 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 178 void *context) 179 { 180 return -ENODEV; 181 } 182 183 static inline int acpi_debugger_write_log(const char *msg) 184 { 185 return -ENODEV; 186 } 187 188 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 189 { 190 return -ENODEV; 191 } 192 193 static inline int acpi_debugger_wait_command_ready(void) 194 { 195 return -ENODEV; 196 } 197 198 static inline int acpi_debugger_notify_command_complete(void) 199 { 200 return -ENODEV; 201 } 202 #endif 203 204 #define BAD_MADT_ENTRY(entry, end) ( \ 205 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 206 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 207 208 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 209 void __acpi_unmap_table(void __iomem *map, unsigned long size); 210 int early_acpi_boot_init(void); 211 int acpi_boot_init (void); 212 void acpi_boot_table_prepare (void); 213 void acpi_boot_table_init (void); 214 int acpi_mps_check (void); 215 int acpi_numa_init (void); 216 217 int acpi_locate_initial_tables (void); 218 void acpi_reserve_initial_tables (void); 219 void acpi_table_init_complete (void); 220 int acpi_table_init (void); 221 222 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 223 int __init_or_acpilib acpi_table_parse_entries(char *id, 224 unsigned long table_size, int entry_id, 225 acpi_tbl_entry_handler handler, unsigned int max_entries); 226 int __init_or_acpilib acpi_table_parse_entries_array(char *id, 227 unsigned long table_size, struct acpi_subtable_proc *proc, 228 int proc_num, unsigned int max_entries); 229 int acpi_table_parse_madt(enum acpi_madt_type id, 230 acpi_tbl_entry_handler handler, 231 unsigned int max_entries); 232 int __init_or_acpilib 233 acpi_table_parse_cedt(enum acpi_cedt_type id, 234 acpi_tbl_entry_handler_arg handler_arg, void *arg); 235 236 int acpi_parse_mcfg (struct acpi_table_header *header); 237 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 238 239 static inline bool acpi_gicc_is_usable(struct acpi_madt_generic_interrupt *gicc) 240 { 241 return gicc->flags & ACPI_MADT_ENABLED; 242 } 243 244 /* the following numa functions are architecture-dependent */ 245 void acpi_numa_slit_init (struct acpi_table_slit *slit); 246 247 #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) 248 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 249 #else 250 static inline void 251 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 252 #endif 253 254 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 255 256 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) 257 void acpi_arch_dma_setup(struct device *dev); 258 #else 259 static inline void acpi_arch_dma_setup(struct device *dev) { } 260 #endif 261 262 #ifdef CONFIG_ARM64 263 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 264 #else 265 static inline void 266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 267 #endif 268 269 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 270 271 #ifndef PHYS_CPUID_INVALID 272 typedef u32 phys_cpuid_t; 273 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 274 #endif 275 276 static inline bool invalid_logical_cpuid(u32 cpuid) 277 { 278 return (int)cpuid < 0; 279 } 280 281 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 282 { 283 return phys_id == PHYS_CPUID_INVALID; 284 } 285 286 /* Validate the processor object's proc_id */ 287 bool acpi_duplicate_processor_id(int proc_id); 288 /* Processor _CTS control */ 289 struct acpi_processor_power; 290 291 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE 292 bool acpi_processor_claim_cst_control(void); 293 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 294 struct acpi_processor_power *info); 295 #else 296 static inline bool acpi_processor_claim_cst_control(void) { return false; } 297 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu, 298 struct acpi_processor_power *info) 299 { 300 return -ENODEV; 301 } 302 #endif 303 304 #ifdef CONFIG_ACPI_HOTPLUG_CPU 305 /* Arch dependent functions for cpu hotplug support */ 306 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 307 int *pcpu); 308 int acpi_unmap_cpu(int cpu); 309 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 310 311 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 312 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 313 #endif 314 315 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 316 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 317 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 318 void acpi_irq_stats_init(void); 319 extern u32 acpi_irq_handled; 320 extern u32 acpi_irq_not_handled; 321 extern unsigned int acpi_sci_irq; 322 extern bool acpi_no_s5; 323 #define INVALID_ACPI_IRQ ((unsigned)-1) 324 static inline bool acpi_sci_irq_valid(void) 325 { 326 return acpi_sci_irq != INVALID_ACPI_IRQ; 327 } 328 329 extern int sbf_port; 330 extern unsigned long acpi_realmode_flags; 331 332 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 333 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 334 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 335 336 void acpi_set_irq_model(enum acpi_irq_model_id model, 337 struct fwnode_handle *(*)(u32)); 338 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32)); 339 340 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags, 341 unsigned int size, 342 struct fwnode_handle *fwnode, 343 const struct irq_domain_ops *ops, 344 void *host_data); 345 346 #ifdef CONFIG_X86_IO_APIC 347 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 348 #else 349 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity) 350 { 351 return -1; 352 } 353 #endif 354 /* 355 * This function undoes the effect of one call to acpi_register_gsi(). 356 * If this matches the last registration, any IRQ resources for gsi 357 * are freed. 358 */ 359 void acpi_unregister_gsi (u32 gsi); 360 361 struct pci_dev; 362 363 int acpi_pci_irq_enable (struct pci_dev *dev); 364 void acpi_penalize_isa_irq(int irq, int active); 365 bool acpi_isa_irq_available(int irq); 366 #ifdef CONFIG_PCI 367 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 368 #else 369 static inline void acpi_penalize_sci_irq(int irq, int trigger, 370 int polarity) 371 { 372 } 373 #endif 374 void acpi_pci_irq_disable (struct pci_dev *dev); 375 376 extern int ec_read(u8 addr, u8 *val); 377 extern int ec_write(u8 addr, u8 val); 378 extern int ec_transaction(u8 command, 379 const u8 *wdata, unsigned wdata_len, 380 u8 *rdata, unsigned rdata_len); 381 extern acpi_handle ec_get_handle(void); 382 383 extern bool acpi_is_pnp_device(struct acpi_device *); 384 385 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 386 387 typedef void (*wmi_notify_handler) (u32 value, void *context); 388 389 int wmi_instance_count(const char *guid); 390 391 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 392 u32 method_id, 393 const struct acpi_buffer *in, 394 struct acpi_buffer *out); 395 extern acpi_status wmi_query_block(const char *guid, u8 instance, 396 struct acpi_buffer *out); 397 extern acpi_status wmi_set_block(const char *guid, u8 instance, 398 const struct acpi_buffer *in); 399 extern acpi_status wmi_install_notify_handler(const char *guid, 400 wmi_notify_handler handler, void *data); 401 extern acpi_status wmi_remove_notify_handler(const char *guid); 402 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 403 extern bool wmi_has_guid(const char *guid); 404 extern char *wmi_get_acpi_device_uid(const char *guid); 405 406 #endif /* CONFIG_ACPI_WMI */ 407 408 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 409 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 410 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 411 #define ACPI_VIDEO_BACKLIGHT 0x0008 412 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 413 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 414 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 415 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 416 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 417 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 418 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 419 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 420 421 extern char acpi_video_backlight_string[]; 422 extern long acpi_is_video_device(acpi_handle handle); 423 extern int acpi_blacklisted(void); 424 extern void acpi_osi_setup(char *str); 425 extern bool acpi_osi_is_win8(void); 426 427 #ifdef CONFIG_ACPI_NUMA 428 int acpi_map_pxm_to_node(int pxm); 429 int acpi_get_node(acpi_handle handle); 430 431 /** 432 * pxm_to_online_node - Map proximity ID to online node 433 * @pxm: ACPI proximity ID 434 * 435 * This is similar to pxm_to_node(), but always returns an online 436 * node. When the mapped node from a given proximity ID is offline, it 437 * looks up the node distance table and returns the nearest online node. 438 * 439 * ACPI device drivers, which are called after the NUMA initialization has 440 * completed in the kernel, can call this interface to obtain their device 441 * NUMA topology from ACPI tables. Such drivers do not have to deal with 442 * offline nodes. A node may be offline when SRAT memory entry does not exist, 443 * or NUMA is disabled, ex. "numa=off" on x86. 444 */ 445 static inline int pxm_to_online_node(int pxm) 446 { 447 int node = pxm_to_node(pxm); 448 449 return numa_map_to_online_node(node); 450 } 451 #else 452 static inline int pxm_to_online_node(int pxm) 453 { 454 return 0; 455 } 456 static inline int acpi_map_pxm_to_node(int pxm) 457 { 458 return 0; 459 } 460 static inline int acpi_get_node(acpi_handle handle) 461 { 462 return 0; 463 } 464 #endif 465 extern int pnpacpi_disabled; 466 467 #define PXM_INVAL (-1) 468 469 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 470 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 471 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 472 struct resource_win *win); 473 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 474 struct resource_win *win); 475 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable); 476 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 477 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 478 struct resource *res); 479 480 void acpi_dev_free_resource_list(struct list_head *list); 481 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 482 int (*preproc)(struct acpi_resource *, void *), 483 void *preproc_data); 484 int acpi_dev_get_dma_resources(struct acpi_device *adev, 485 struct list_head *list); 486 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list); 487 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 488 unsigned long types); 489 490 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 491 void *arg) 492 { 493 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 494 } 495 496 struct acpi_device *acpi_resource_consumer(struct resource *res); 497 498 int acpi_check_resource_conflict(const struct resource *res); 499 500 int acpi_check_region(resource_size_t start, resource_size_t n, 501 const char *name); 502 503 int acpi_resources_are_enforced(void); 504 505 #ifdef CONFIG_HIBERNATION 506 extern int acpi_check_s4_hw_signature; 507 #endif 508 509 #ifdef CONFIG_PM_SLEEP 510 void __init acpi_old_suspend_ordering(void); 511 void __init acpi_nvs_nosave(void); 512 void __init acpi_nvs_nosave_s3(void); 513 void __init acpi_sleep_no_blacklist(void); 514 #endif /* CONFIG_PM_SLEEP */ 515 516 int acpi_register_wakeup_handler( 517 int wake_irq, bool (*wakeup)(void *context), void *context); 518 void acpi_unregister_wakeup_handler( 519 bool (*wakeup)(void *context), void *context); 520 521 struct acpi_osc_context { 522 char *uuid_str; /* UUID string */ 523 int rev; 524 struct acpi_buffer cap; /* list of DWORD capabilities */ 525 struct acpi_buffer ret; /* free by caller if success */ 526 }; 527 528 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 529 530 /* Number of _OSC capability DWORDS depends on bridge type */ 531 #define OSC_PCI_CAPABILITY_DWORDS 3 532 #define OSC_CXL_CAPABILITY_DWORDS 5 533 534 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */ 535 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 536 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 537 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 538 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */ 539 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */ 540 541 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 542 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 543 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 544 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 545 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 546 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 547 548 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 549 #define OSC_SB_PAD_SUPPORT 0x00000001 550 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 551 #define OSC_SB_PR3_SUPPORT 0x00000004 552 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 553 #define OSC_SB_APEI_SUPPORT 0x00000010 554 #define OSC_SB_CPC_SUPPORT 0x00000020 555 #define OSC_SB_CPCV2_SUPPORT 0x00000040 556 #define OSC_SB_PCLPI_SUPPORT 0x00000080 557 #define OSC_SB_OSLPI_SUPPORT 0x00000100 558 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 559 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000 560 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000 561 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000 562 #define OSC_SB_PRM_SUPPORT 0x00200000 563 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000 564 565 extern bool osc_sb_apei_support_acked; 566 extern bool osc_pc_lpi_support_confirmed; 567 extern bool osc_sb_native_usb4_support_confirmed; 568 extern bool osc_sb_cppc2_support_acked; 569 extern bool osc_cpc_flexible_adr_space_confirmed; 570 571 /* USB4 Capabilities */ 572 #define OSC_USB_USB3_TUNNELING 0x00000001 573 #define OSC_USB_DP_TUNNELING 0x00000002 574 #define OSC_USB_PCIE_TUNNELING 0x00000004 575 #define OSC_USB_XDOMAIN 0x00000008 576 577 extern u32 osc_sb_native_usb4_control; 578 579 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 580 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 581 #define OSC_PCI_ASPM_SUPPORT 0x00000002 582 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 583 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 584 #define OSC_PCI_MSI_SUPPORT 0x00000010 585 #define OSC_PCI_EDR_SUPPORT 0x00000080 586 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100 587 588 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 589 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 590 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 591 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 592 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 593 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 594 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020 595 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080 596 597 /* CXL _OSC: Capabilities DWORD 4: Support Field */ 598 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001 599 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002 600 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004 601 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008 602 603 /* CXL _OSC: Capabilities DWORD 5: Control Field */ 604 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001 605 606 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 607 { 608 u32 *ret = context->ret.pointer; 609 610 return ret[OSC_CONTROL_DWORD]; 611 } 612 613 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 614 { 615 u32 *ret = context->ret.pointer; 616 617 return ret[OSC_EXT_CONTROL_DWORD]; 618 } 619 620 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 621 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 622 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 623 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 624 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 625 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 626 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 627 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 628 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 629 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 630 631 /* Enable _OST when all relevant hotplug operations are enabled */ 632 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 633 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 634 defined(CONFIG_ACPI_CONTAINER) 635 #define ACPI_HOTPLUG_OST 636 #endif 637 638 /* _OST Source Event Code (OSPM Action) */ 639 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 640 #define ACPI_OST_EC_OSPM_EJECT 0x103 641 #define ACPI_OST_EC_OSPM_INSERTION 0x200 642 643 /* _OST General Processing Status Code */ 644 #define ACPI_OST_SC_SUCCESS 0x0 645 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 646 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 647 648 /* _OST OS Shutdown Processing (0x100) Status Code */ 649 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 650 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 651 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 652 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 653 654 /* _OST Ejection Request (0x3, 0x103) Status Code */ 655 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 656 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 657 #define ACPI_OST_SC_DEVICE_BUSY 0x82 658 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 659 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 660 661 /* _OST Insertion Request (0x200) Status Code */ 662 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 663 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 664 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 665 666 enum acpi_predicate { 667 all_versions, 668 less_than_or_equal, 669 equal, 670 greater_than_or_equal, 671 }; 672 673 /* Table must be terminted by a NULL entry */ 674 struct acpi_platform_list { 675 char oem_id[ACPI_OEM_ID_SIZE+1]; 676 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 677 u32 oem_revision; 678 char *table; 679 enum acpi_predicate pred; 680 char *reason; 681 u32 data; 682 }; 683 int acpi_match_platform_list(const struct acpi_platform_list *plat); 684 685 extern void acpi_early_init(void); 686 extern void acpi_subsystem_init(void); 687 688 extern int acpi_nvs_register(__u64 start, __u64 size); 689 690 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 691 void *data); 692 693 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, 694 const struct acpi_device *adev); 695 696 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 697 const struct device *dev); 698 699 const void *acpi_device_get_match_data(const struct device *dev); 700 extern bool acpi_driver_match_device(struct device *dev, 701 const struct device_driver *drv); 702 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *); 703 int acpi_device_modalias(struct device *, char *, int); 704 705 struct platform_device *acpi_create_platform_device(struct acpi_device *, 706 const struct property_entry *); 707 #define ACPI_PTR(_ptr) (_ptr) 708 709 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 710 { 711 adev->flags.visited = true; 712 } 713 714 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 715 { 716 adev->flags.visited = false; 717 } 718 719 enum acpi_reconfig_event { 720 ACPI_RECONFIG_DEVICE_ADD = 0, 721 ACPI_RECONFIG_DEVICE_REMOVE, 722 }; 723 724 int acpi_reconfig_notifier_register(struct notifier_block *nb); 725 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 726 727 #ifdef CONFIG_ACPI_GTDT 728 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 729 int acpi_gtdt_map_ppi(int type); 730 bool acpi_gtdt_c3stop(int type); 731 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 732 #endif 733 734 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER 735 static inline void acpi_arch_set_root_pointer(u64 addr) 736 { 737 } 738 #endif 739 740 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER 741 static inline u64 acpi_arch_get_root_pointer(void) 742 { 743 return 0; 744 } 745 #endif 746 747 int acpi_get_local_address(acpi_handle handle, u32 *addr); 748 const char *acpi_get_subsystem_id(acpi_handle handle); 749 750 #else /* !CONFIG_ACPI */ 751 752 #define acpi_disabled 1 753 754 #define ACPI_COMPANION(dev) (NULL) 755 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 756 #define ACPI_HANDLE(dev) (NULL) 757 #define ACPI_HANDLE_FWNODE(fwnode) (NULL) 758 759 #include <acpi/acpi_numa.h> 760 761 struct fwnode_handle; 762 763 static inline bool acpi_dev_found(const char *hid) 764 { 765 return false; 766 } 767 768 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 769 { 770 return false; 771 } 772 773 struct acpi_device; 774 775 static inline bool acpi_dev_uid_match(struct acpi_device *adev, const char *uid2) 776 { 777 return false; 778 } 779 780 static inline bool 781 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2) 782 { 783 return false; 784 } 785 786 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) 787 { 788 return -ENODEV; 789 } 790 791 static inline struct acpi_device * 792 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) 793 { 794 return NULL; 795 } 796 797 static inline bool acpi_reduced_hardware(void) 798 { 799 return false; 800 } 801 802 static inline void acpi_dev_put(struct acpi_device *adev) {} 803 804 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 805 { 806 return false; 807 } 808 809 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode) 810 { 811 return false; 812 } 813 814 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode) 815 { 816 return NULL; 817 } 818 819 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode) 820 { 821 return false; 822 } 823 824 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode) 825 { 826 return NULL; 827 } 828 829 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 830 const char *name) 831 { 832 return false; 833 } 834 835 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 836 { 837 return NULL; 838 } 839 840 static inline bool has_acpi_companion(struct device *dev) 841 { 842 return false; 843 } 844 845 static inline void acpi_preset_companion(struct device *dev, 846 struct acpi_device *parent, u64 addr) 847 { 848 } 849 850 static inline const char *acpi_dev_name(struct acpi_device *adev) 851 { 852 return NULL; 853 } 854 855 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 856 { 857 return NULL; 858 } 859 860 static inline void acpi_early_init(void) { } 861 static inline void acpi_subsystem_init(void) { } 862 863 static inline int early_acpi_boot_init(void) 864 { 865 return 0; 866 } 867 static inline int acpi_boot_init(void) 868 { 869 return 0; 870 } 871 872 static inline void acpi_boot_table_prepare(void) 873 { 874 } 875 876 static inline void acpi_boot_table_init(void) 877 { 878 } 879 880 static inline int acpi_mps_check(void) 881 { 882 return 0; 883 } 884 885 static inline int acpi_check_resource_conflict(struct resource *res) 886 { 887 return 0; 888 } 889 890 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 891 const char *name) 892 { 893 return 0; 894 } 895 896 struct acpi_table_header; 897 static inline int acpi_table_parse(char *id, 898 int (*handler)(struct acpi_table_header *)) 899 { 900 return -ENODEV; 901 } 902 903 static inline int acpi_nvs_register(__u64 start, __u64 size) 904 { 905 return 0; 906 } 907 908 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 909 void *data) 910 { 911 return 0; 912 } 913 914 struct acpi_device_id; 915 916 static inline const struct acpi_device_id *acpi_match_acpi_device( 917 const struct acpi_device_id *ids, const struct acpi_device *adev) 918 { 919 return NULL; 920 } 921 922 static inline const struct acpi_device_id *acpi_match_device( 923 const struct acpi_device_id *ids, const struct device *dev) 924 { 925 return NULL; 926 } 927 928 static inline const void *acpi_device_get_match_data(const struct device *dev) 929 { 930 return NULL; 931 } 932 933 static inline bool acpi_driver_match_device(struct device *dev, 934 const struct device_driver *drv) 935 { 936 return false; 937 } 938 939 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, 940 u64 rev, u64 funcs) 941 { 942 return false; 943 } 944 945 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 946 const guid_t *guid, 947 u64 rev, u64 func, 948 union acpi_object *argv4) 949 { 950 return NULL; 951 } 952 953 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle, 954 const guid_t *guid, 955 u64 rev, u64 func, 956 union acpi_object *argv4, 957 acpi_object_type type) 958 { 959 return NULL; 960 } 961 962 static inline int acpi_device_uevent_modalias(const struct device *dev, 963 struct kobj_uevent_env *env) 964 { 965 return -ENODEV; 966 } 967 968 static inline int acpi_device_modalias(struct device *dev, 969 char *buf, int size) 970 { 971 return -ENODEV; 972 } 973 974 static inline struct platform_device * 975 acpi_create_platform_device(struct acpi_device *adev, 976 const struct property_entry *properties) 977 { 978 return NULL; 979 } 980 981 static inline bool acpi_dma_supported(const struct acpi_device *adev) 982 { 983 return false; 984 } 985 986 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 987 { 988 return DEV_DMA_NOT_SUPPORTED; 989 } 990 991 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map) 992 { 993 return -ENODEV; 994 } 995 996 static inline int acpi_dma_configure(struct device *dev, 997 enum dev_dma_attr attr) 998 { 999 return 0; 1000 } 1001 1002 static inline int acpi_dma_configure_id(struct device *dev, 1003 enum dev_dma_attr attr, 1004 const u32 *input_id) 1005 { 1006 return 0; 1007 } 1008 1009 #define ACPI_PTR(_ptr) (NULL) 1010 1011 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 1012 { 1013 } 1014 1015 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 1016 { 1017 } 1018 1019 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 1020 { 1021 return -EINVAL; 1022 } 1023 1024 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 1025 { 1026 return -EINVAL; 1027 } 1028 1029 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 1030 { 1031 return NULL; 1032 } 1033 1034 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) 1035 { 1036 return -ENODEV; 1037 } 1038 1039 static inline const char *acpi_get_subsystem_id(acpi_handle handle) 1040 { 1041 return ERR_PTR(-ENODEV); 1042 } 1043 1044 static inline int acpi_register_wakeup_handler(int wake_irq, 1045 bool (*wakeup)(void *context), void *context) 1046 { 1047 return -ENXIO; 1048 } 1049 1050 static inline void acpi_unregister_wakeup_handler( 1051 bool (*wakeup)(void *context), void *context) { } 1052 1053 struct acpi_osc_context; 1054 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context) 1055 { 1056 return 0; 1057 } 1058 1059 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context) 1060 { 1061 return 0; 1062 } 1063 1064 static inline bool acpi_sleep_state_supported(u8 sleep_state) 1065 { 1066 return false; 1067 } 1068 1069 #endif /* !CONFIG_ACPI */ 1070 1071 extern void arch_post_acpi_subsys_init(void); 1072 1073 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 1074 int acpi_ioapic_add(acpi_handle root); 1075 #else 1076 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 1077 #endif 1078 1079 #ifdef CONFIG_ACPI 1080 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 1081 u32 pm1a_ctrl, u32 pm1b_ctrl)); 1082 1083 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 1084 u32 pm1a_control, u32 pm1b_control); 1085 1086 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 1087 u32 val_a, u32 val_b)); 1088 1089 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 1090 u32 val_a, u32 val_b); 1091 #if defined(CONFIG_SUSPEND) && defined(CONFIG_X86) 1092 struct acpi_s2idle_dev_ops { 1093 struct list_head list_node; 1094 void (*prepare)(void); 1095 void (*check)(void); 1096 void (*restore)(void); 1097 }; 1098 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1099 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg); 1100 int acpi_get_lps0_constraint(struct acpi_device *adev); 1101 #else /* CONFIG_SUSPEND && CONFIG_X86 */ 1102 static inline int acpi_get_lps0_constraint(struct device *dev) 1103 { 1104 return ACPI_STATE_UNKNOWN; 1105 } 1106 #endif /* CONFIG_SUSPEND && CONFIG_X86 */ 1107 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 1108 #else 1109 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 1110 #endif 1111 1112 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 1113 int acpi_dev_suspend(struct device *dev, bool wakeup); 1114 int acpi_dev_resume(struct device *dev); 1115 int acpi_subsys_runtime_suspend(struct device *dev); 1116 int acpi_subsys_runtime_resume(struct device *dev); 1117 int acpi_dev_pm_attach(struct device *dev, bool power_on); 1118 bool acpi_storage_d3(struct device *dev); 1119 bool acpi_dev_state_d0(struct device *dev); 1120 #else 1121 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 1122 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 1123 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 1124 { 1125 return 0; 1126 } 1127 static inline bool acpi_storage_d3(struct device *dev) 1128 { 1129 return false; 1130 } 1131 static inline bool acpi_dev_state_d0(struct device *dev) 1132 { 1133 return true; 1134 } 1135 #endif 1136 1137 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 1138 int acpi_subsys_prepare(struct device *dev); 1139 void acpi_subsys_complete(struct device *dev); 1140 int acpi_subsys_suspend_late(struct device *dev); 1141 int acpi_subsys_suspend_noirq(struct device *dev); 1142 int acpi_subsys_suspend(struct device *dev); 1143 int acpi_subsys_freeze(struct device *dev); 1144 int acpi_subsys_poweroff(struct device *dev); 1145 void acpi_ec_mark_gpe_for_wake(void); 1146 void acpi_ec_set_gpe_wake_mask(u8 action); 1147 int acpi_subsys_restore_early(struct device *dev); 1148 #else 1149 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 1150 static inline void acpi_subsys_complete(struct device *dev) {} 1151 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 1152 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 1153 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 1154 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 1155 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; } 1156 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; } 1157 static inline void acpi_ec_mark_gpe_for_wake(void) {} 1158 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {} 1159 #endif 1160 1161 #ifdef CONFIG_ACPI 1162 __printf(3, 4) 1163 void acpi_handle_printk(const char *level, acpi_handle handle, 1164 const char *fmt, ...); 1165 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name, 1166 acpi_status status); 1167 #else /* !CONFIG_ACPI */ 1168 static inline __printf(3, 4) void 1169 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 1170 static inline void acpi_evaluation_failure_warn(acpi_handle handle, 1171 const char *name, 1172 acpi_status status) {} 1173 #endif /* !CONFIG_ACPI */ 1174 1175 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 1176 __printf(3, 4) 1177 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 1178 #endif 1179 1180 /* 1181 * acpi_handle_<level>: Print message with ACPI prefix and object path 1182 * 1183 * These interfaces acquire the global namespace mutex to obtain an object 1184 * path. In interrupt context, it shows the object path as <n/a>. 1185 */ 1186 #define acpi_handle_emerg(handle, fmt, ...) \ 1187 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 1188 #define acpi_handle_alert(handle, fmt, ...) \ 1189 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 1190 #define acpi_handle_crit(handle, fmt, ...) \ 1191 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 1192 #define acpi_handle_err(handle, fmt, ...) \ 1193 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 1194 #define acpi_handle_warn(handle, fmt, ...) \ 1195 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 1196 #define acpi_handle_notice(handle, fmt, ...) \ 1197 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 1198 #define acpi_handle_info(handle, fmt, ...) \ 1199 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 1200 1201 #if defined(DEBUG) 1202 #define acpi_handle_debug(handle, fmt, ...) \ 1203 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 1204 #else 1205 #if defined(CONFIG_DYNAMIC_DEBUG) 1206 #define acpi_handle_debug(handle, fmt, ...) \ 1207 _dynamic_func_call(fmt, __acpi_handle_debug, \ 1208 handle, pr_fmt(fmt), ##__VA_ARGS__) 1209 #else 1210 #define acpi_handle_debug(handle, fmt, ...) \ 1211 ({ \ 1212 if (0) \ 1213 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 1214 0; \ 1215 }) 1216 #endif 1217 #endif 1218 1219 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1220 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1221 struct acpi_resource_gpio **agpio); 1222 bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1223 struct acpi_resource_gpio **agpio); 1224 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index, 1225 bool *wake_capable); 1226 #else 1227 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1228 struct acpi_resource_gpio **agpio) 1229 { 1230 return false; 1231 } 1232 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares, 1233 struct acpi_resource_gpio **agpio) 1234 { 1235 return false; 1236 } 1237 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, 1238 int index, bool *wake_capable) 1239 { 1240 return -ENXIO; 1241 } 1242 #endif 1243 1244 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index, 1245 bool *wake_capable) 1246 { 1247 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable); 1248 } 1249 1250 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, 1251 int index) 1252 { 1253 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL); 1254 } 1255 1256 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1257 { 1258 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL); 1259 } 1260 1261 /* Device properties */ 1262 1263 #ifdef CONFIG_ACPI 1264 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1265 acpi_object_type type, const union acpi_object **obj); 1266 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1267 const char *name, size_t index, size_t num_args, 1268 struct fwnode_reference_args *args); 1269 1270 static inline int acpi_node_get_property_reference( 1271 const struct fwnode_handle *fwnode, 1272 const char *name, size_t index, 1273 struct fwnode_reference_args *args) 1274 { 1275 return __acpi_node_get_property_reference(fwnode, name, index, 1276 NR_FWNODE_REFERENCE_ARGS, args); 1277 } 1278 1279 static inline bool acpi_dev_has_props(const struct acpi_device *adev) 1280 { 1281 return !list_empty(&adev->data.properties); 1282 } 1283 1284 struct acpi_device_properties * 1285 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid, 1286 union acpi_object *properties); 1287 1288 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1289 void **valptr); 1290 1291 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1292 struct fwnode_handle *child); 1293 1294 struct acpi_probe_entry; 1295 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1296 struct acpi_probe_entry *); 1297 1298 #define ACPI_TABLE_ID_LEN 5 1299 1300 /** 1301 * struct acpi_probe_entry - boot-time probing entry 1302 * @id: ACPI table name 1303 * @type: Optional subtable type to match 1304 * (if @id contains subtables) 1305 * @subtable_valid: Optional callback to check the validity of 1306 * the subtable 1307 * @probe_table: Callback to the driver being probed when table 1308 * match is successful 1309 * @probe_subtbl: Callback to the driver being probed when table and 1310 * subtable match (and optional callback is successful) 1311 * @driver_data: Sideband data provided back to the driver 1312 */ 1313 struct acpi_probe_entry { 1314 __u8 id[ACPI_TABLE_ID_LEN]; 1315 __u8 type; 1316 acpi_probe_entry_validate_subtbl subtable_valid; 1317 union { 1318 acpi_tbl_table_handler probe_table; 1319 acpi_tbl_entry_handler probe_subtbl; 1320 }; 1321 kernel_ulong_t driver_data; 1322 }; 1323 1324 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \ 1325 valid, data, fn) \ 1326 static const struct acpi_probe_entry __acpi_probe_##name \ 1327 __used __section("__" #table "_acpi_probe_table") = { \ 1328 .id = table_id, \ 1329 .type = subtable, \ 1330 .subtable_valid = valid, \ 1331 .probe_table = fn, \ 1332 .driver_data = data, \ 1333 } 1334 1335 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \ 1336 subtable, valid, data, fn) \ 1337 static const struct acpi_probe_entry __acpi_probe_##name \ 1338 __used __section("__" #table "_acpi_probe_table") = { \ 1339 .id = table_id, \ 1340 .type = subtable, \ 1341 .subtable_valid = valid, \ 1342 .probe_subtbl = fn, \ 1343 .driver_data = data, \ 1344 } 1345 1346 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1347 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1348 1349 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1350 1351 #define acpi_probe_device_table(t) \ 1352 ({ \ 1353 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1354 ACPI_PROBE_TABLE_END(t); \ 1355 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1356 (&ACPI_PROBE_TABLE_END(t) - \ 1357 &ACPI_PROBE_TABLE(t))); \ 1358 }) 1359 #else 1360 static inline int acpi_dev_get_property(struct acpi_device *adev, 1361 const char *name, acpi_object_type type, 1362 const union acpi_object **obj) 1363 { 1364 return -ENXIO; 1365 } 1366 1367 static inline int 1368 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1369 const char *name, size_t index, size_t num_args, 1370 struct fwnode_reference_args *args) 1371 { 1372 return -ENXIO; 1373 } 1374 1375 static inline int 1376 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1377 const char *name, size_t index, 1378 struct fwnode_reference_args *args) 1379 { 1380 return -ENXIO; 1381 } 1382 1383 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1384 const char *propname, 1385 void **valptr) 1386 { 1387 return -ENXIO; 1388 } 1389 1390 static inline struct fwnode_handle * 1391 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1392 struct fwnode_handle *child) 1393 { 1394 return NULL; 1395 } 1396 1397 static inline struct fwnode_handle * 1398 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1399 struct fwnode_handle *prev) 1400 { 1401 return ERR_PTR(-ENXIO); 1402 } 1403 1404 static inline int 1405 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1406 struct fwnode_handle **remote, 1407 struct fwnode_handle **port, 1408 struct fwnode_handle **endpoint) 1409 { 1410 return -ENXIO; 1411 } 1412 1413 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1414 static const void * __acpi_table_##name[] \ 1415 __attribute__((unused)) \ 1416 = { (void *) table_id, \ 1417 (void *) subtable, \ 1418 (void *) valid, \ 1419 (void *) fn, \ 1420 (void *) data } 1421 1422 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1423 #endif 1424 1425 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1426 void acpi_table_upgrade(void); 1427 #else 1428 static inline void acpi_table_upgrade(void) { } 1429 #endif 1430 1431 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1432 extern bool acpi_has_watchdog(void); 1433 #else 1434 static inline bool acpi_has_watchdog(void) { return false; } 1435 #endif 1436 1437 #ifdef CONFIG_ACPI_SPCR_TABLE 1438 extern bool qdf2400_e44_present; 1439 int acpi_parse_spcr(bool enable_earlycon, bool enable_console); 1440 #else 1441 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) 1442 { 1443 return 0; 1444 } 1445 #endif 1446 1447 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1448 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1449 #else 1450 static inline 1451 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1452 { 1453 return -EINVAL; 1454 } 1455 #endif 1456 1457 #ifdef CONFIG_ACPI_LPIT 1458 int lpit_read_residency_count_address(u64 *address); 1459 #else 1460 static inline int lpit_read_residency_count_address(u64 *address) 1461 { 1462 return -EINVAL; 1463 } 1464 #endif 1465 1466 #ifdef CONFIG_ACPI_PROCESSOR_IDLE 1467 #ifndef arch_get_idle_state_flags 1468 static inline unsigned int arch_get_idle_state_flags(u32 arch_flags) 1469 { 1470 return 0; 1471 } 1472 #endif 1473 #endif /* CONFIG_ACPI_PROCESSOR_IDLE */ 1474 1475 #ifdef CONFIG_ACPI_PPTT 1476 int acpi_pptt_cpu_is_thread(unsigned int cpu); 1477 int find_acpi_cpu_topology(unsigned int cpu, int level); 1478 int find_acpi_cpu_topology_cluster(unsigned int cpu); 1479 int find_acpi_cpu_topology_package(unsigned int cpu); 1480 int find_acpi_cpu_topology_hetero_id(unsigned int cpu); 1481 #else 1482 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu) 1483 { 1484 return -EINVAL; 1485 } 1486 static inline int find_acpi_cpu_topology(unsigned int cpu, int level) 1487 { 1488 return -EINVAL; 1489 } 1490 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu) 1491 { 1492 return -EINVAL; 1493 } 1494 static inline int find_acpi_cpu_topology_package(unsigned int cpu) 1495 { 1496 return -EINVAL; 1497 } 1498 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu) 1499 { 1500 return -EINVAL; 1501 } 1502 #endif 1503 1504 #ifdef CONFIG_ARM64 1505 void acpi_arm_init(void); 1506 #else 1507 static inline void acpi_arm_init(void) { } 1508 #endif 1509 1510 #ifdef CONFIG_ACPI_PCC 1511 void acpi_init_pcc(void); 1512 #else 1513 static inline void acpi_init_pcc(void) { } 1514 #endif 1515 1516 #ifdef CONFIG_ACPI_FFH 1517 void acpi_init_ffh(void); 1518 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt, 1519 void **region_ctxt); 1520 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value, 1521 void *region_context); 1522 #else 1523 static inline void acpi_init_ffh(void) { } 1524 #endif 1525 1526 #ifdef CONFIG_ACPI 1527 extern void acpi_device_notify(struct device *dev); 1528 extern void acpi_device_notify_remove(struct device *dev); 1529 #else 1530 static inline void acpi_device_notify(struct device *dev) { } 1531 static inline void acpi_device_notify_remove(struct device *dev) { } 1532 #endif 1533 1534 static inline void acpi_use_parent_companion(struct device *dev) 1535 { 1536 ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent)); 1537 } 1538 1539 #endif /*_LINUX_ACPI_H*/ 1540