2 * acpi.h - ACPI Interface
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 #include <linux/errno.h>
25 #include <linux/ioport.h> /* for struct resource */
26 #include <linux/resource_ext.h>
27 #include <linux/device.h>
28 #include <linux/property.h>
29 #include <linux/uuid.h>
34 #include <acpi/acpi.h>
38 #include <linux/list.h>
39 #include <linux/mod_devicetable.h>
40 #include <linux/dynamic_debug.h>
41 #include <linux/module.h>
42 #include <linux/mutex.h>
44 #include <acpi/acpi_bus.h>
45 #include <acpi/acpi_drivers.h>
46 #include <acpi/acpi_numa.h>
47 #include <acpi/acpi_io.h>
50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
52 return adev ? adev->handle : NULL;
55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
57 acpi_fwnode_handle(adev) : NULL)
58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
60 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
62 struct fwnode_handle *fwnode;
64 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
68 fwnode->ops = &acpi_static_fwnode_ops;
73 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
75 if (WARN_ON(!is_acpi_static_node(fwnode)))
82 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
83 * the PCI-defined class-code information
85 * @_cls : the class, subclass, prog-if triple for this device
86 * @_msk : the class mask for this device
88 * This macro is used to create a struct acpi_device_id that matches a
89 * specific PCI class. The .id and .driver_data fields will be left
90 * initialized with the default value.
92 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
94 static inline bool has_acpi_companion(struct device *dev)
96 return is_acpi_device_node(dev->fwnode);
99 static inline void acpi_preset_companion(struct device *dev,
100 struct acpi_device *parent, u64 addr)
102 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
105 static inline const char *acpi_dev_name(struct acpi_device *adev)
107 return dev_name(&adev->dev);
110 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
112 enum acpi_irq_model_id {
113 ACPI_IRQ_MODEL_PIC = 0,
114 ACPI_IRQ_MODEL_IOAPIC,
115 ACPI_IRQ_MODEL_IOSAPIC,
116 ACPI_IRQ_MODEL_PLATFORM,
121 extern enum acpi_irq_model_id acpi_irq_model;
123 enum acpi_interrupt_id {
124 ACPI_INTERRUPT_PMI = 1,
130 #define ACPI_SPACE_MEM 0
132 enum acpi_address_range_id {
133 ACPI_ADDRESS_RANGE_MEMORY = 1,
134 ACPI_ADDRESS_RANGE_RESERVED = 2,
135 ACPI_ADDRESS_RANGE_ACPI = 3,
136 ACPI_ADDRESS_RANGE_NVS = 4,
137 ACPI_ADDRESS_RANGE_COUNT
143 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
145 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
146 const unsigned long end);
148 /* Debugger support */
150 struct acpi_debugger_ops {
151 int (*create_thread)(acpi_osd_exec_callback function, void *context);
152 ssize_t (*write_log)(const char *msg);
153 ssize_t (*read_cmd)(char *buffer, size_t length);
154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
155 int (*notify_command_complete)(void);
158 struct acpi_debugger {
159 const struct acpi_debugger_ops *ops;
160 struct module *owner;
164 #ifdef CONFIG_ACPI_DEBUGGER
165 int __init acpi_debugger_init(void);
166 int acpi_register_debugger(struct module *owner,
167 const struct acpi_debugger_ops *ops);
168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
170 ssize_t acpi_debugger_write_log(const char *msg);
171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
172 int acpi_debugger_wait_command_ready(void);
173 int acpi_debugger_notify_command_complete(void);
175 static inline int acpi_debugger_init(void)
180 static inline int acpi_register_debugger(struct module *owner,
181 const struct acpi_debugger_ops *ops)
186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
196 static inline int acpi_debugger_write_log(const char *msg)
201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
206 static inline int acpi_debugger_wait_command_ready(void)
211 static inline int acpi_debugger_notify_command_complete(void)
217 #define BAD_MADT_ENTRY(entry, end) ( \
218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
221 struct acpi_subtable_proc {
223 acpi_tbl_entry_handler handler;
227 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
228 void __acpi_unmap_table(void __iomem *map, unsigned long size);
229 int early_acpi_boot_init(void);
230 int acpi_boot_init (void);
231 void acpi_boot_table_prepare (void);
232 void acpi_boot_table_init (void);
233 int acpi_mps_check (void);
234 int acpi_numa_init (void);
236 int acpi_locate_initial_tables (void);
237 void acpi_reserve_initial_tables (void);
238 void acpi_table_init_complete (void);
239 int acpi_table_init (void);
240 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
241 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
243 acpi_tbl_entry_handler handler,
244 unsigned int max_entries);
245 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
246 struct acpi_subtable_proc *proc, int proc_num,
247 unsigned int max_entries);
248 int acpi_table_parse_madt(enum acpi_madt_type id,
249 acpi_tbl_entry_handler handler,
250 unsigned int max_entries);
251 int acpi_parse_mcfg (struct acpi_table_header *header);
252 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
254 /* the following numa functions are architecture-dependent */
255 void acpi_numa_slit_init (struct acpi_table_slit *slit);
257 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
258 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
261 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
264 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
267 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
270 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
273 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
275 #ifndef PHYS_CPUID_INVALID
276 typedef u32 phys_cpuid_t;
277 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
280 static inline bool invalid_logical_cpuid(u32 cpuid)
282 return (int)cpuid < 0;
285 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
287 return phys_id == PHYS_CPUID_INVALID;
290 /* Validate the processor object's proc_id */
291 bool acpi_duplicate_processor_id(int proc_id);
293 #ifdef CONFIG_ACPI_HOTPLUG_CPU
294 /* Arch dependent functions for cpu hotplug support */
295 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
297 int acpi_unmap_cpu(int cpu);
298 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
300 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
301 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
304 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
305 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
306 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
307 void acpi_irq_stats_init(void);
308 extern u32 acpi_irq_handled;
309 extern u32 acpi_irq_not_handled;
310 extern unsigned int acpi_sci_irq;
311 extern bool acpi_no_s5;
312 #define INVALID_ACPI_IRQ ((unsigned)-1)
313 static inline bool acpi_sci_irq_valid(void)
315 return acpi_sci_irq != INVALID_ACPI_IRQ;
319 extern unsigned long acpi_realmode_flags;
321 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
322 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
323 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
325 void acpi_set_irq_model(enum acpi_irq_model_id model,
326 struct fwnode_handle *fwnode);
328 #ifdef CONFIG_X86_IO_APIC
329 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
331 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
337 * This function undoes the effect of one call to acpi_register_gsi().
338 * If this matches the last registration, any IRQ resources for gsi
341 void acpi_unregister_gsi (u32 gsi);
345 int acpi_pci_irq_enable (struct pci_dev *dev);
346 void acpi_penalize_isa_irq(int irq, int active);
347 bool acpi_isa_irq_available(int irq);
348 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
349 void acpi_pci_irq_disable (struct pci_dev *dev);
351 extern int ec_read(u8 addr, u8 *val);
352 extern int ec_write(u8 addr, u8 val);
353 extern int ec_transaction(u8 command,
354 const u8 *wdata, unsigned wdata_len,
355 u8 *rdata, unsigned rdata_len);
356 extern acpi_handle ec_get_handle(void);
358 extern bool acpi_is_pnp_device(struct acpi_device *);
360 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
362 typedef void (*wmi_notify_handler) (u32 value, void *context);
364 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
366 const struct acpi_buffer *in,
367 struct acpi_buffer *out);
368 extern acpi_status wmi_query_block(const char *guid, u8 instance,
369 struct acpi_buffer *out);
370 extern acpi_status wmi_set_block(const char *guid, u8 instance,
371 const struct acpi_buffer *in);
372 extern acpi_status wmi_install_notify_handler(const char *guid,
373 wmi_notify_handler handler, void *data);
374 extern acpi_status wmi_remove_notify_handler(const char *guid);
375 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
376 extern bool wmi_has_guid(const char *guid);
378 #endif /* CONFIG_ACPI_WMI */
380 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
381 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
382 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
383 #define ACPI_VIDEO_BACKLIGHT 0x0008
384 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
385 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
386 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
387 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
388 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
389 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
390 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
391 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
393 extern char acpi_video_backlight_string[];
394 extern long acpi_is_video_device(acpi_handle handle);
395 extern int acpi_blacklisted(void);
396 extern void acpi_osi_setup(char *str);
397 extern bool acpi_osi_is_win8(void);
399 #ifdef CONFIG_ACPI_NUMA
400 int acpi_map_pxm_to_online_node(int pxm);
401 int acpi_get_node(acpi_handle handle);
403 static inline int acpi_map_pxm_to_online_node(int pxm)
407 static inline int acpi_get_node(acpi_handle handle)
412 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
414 extern int pnpacpi_disabled;
416 #define PXM_INVAL (-1)
418 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
419 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
420 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
421 struct resource_win *win);
422 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
423 struct resource_win *win);
424 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
425 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
426 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
427 struct resource *res);
429 void acpi_dev_free_resource_list(struct list_head *list);
430 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
431 int (*preproc)(struct acpi_resource *, void *),
433 int acpi_dev_get_dma_resources(struct acpi_device *adev,
434 struct list_head *list);
435 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
436 unsigned long types);
438 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
441 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
444 struct acpi_device *acpi_resource_consumer(struct resource *res);
446 int acpi_check_resource_conflict(const struct resource *res);
448 int acpi_check_region(resource_size_t start, resource_size_t n,
451 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
454 int acpi_resources_are_enforced(void);
456 #ifdef CONFIG_HIBERNATION
457 void __init acpi_no_s4_hw_signature(void);
460 #ifdef CONFIG_PM_SLEEP
461 void __init acpi_old_suspend_ordering(void);
462 void __init acpi_nvs_nosave(void);
463 void __init acpi_nvs_nosave_s3(void);
464 #endif /* CONFIG_PM_SLEEP */
466 struct acpi_osc_context {
467 char *uuid_str; /* UUID string */
469 struct acpi_buffer cap; /* list of DWORD capabilities */
470 struct acpi_buffer ret; /* free by caller if success */
473 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
475 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
476 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
477 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
478 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
480 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
481 #define OSC_QUERY_ENABLE 0x00000001 /* input */
482 #define OSC_REQUEST_ERROR 0x00000002 /* return */
483 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
484 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
485 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
487 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
488 #define OSC_SB_PAD_SUPPORT 0x00000001
489 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
490 #define OSC_SB_PR3_SUPPORT 0x00000004
491 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
492 #define OSC_SB_APEI_SUPPORT 0x00000010
493 #define OSC_SB_CPC_SUPPORT 0x00000020
494 #define OSC_SB_CPCV2_SUPPORT 0x00000040
495 #define OSC_SB_PCLPI_SUPPORT 0x00000080
496 #define OSC_SB_OSLPI_SUPPORT 0x00000100
497 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
499 extern bool osc_sb_apei_support_acked;
500 extern bool osc_pc_lpi_support_confirmed;
502 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
503 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
504 #define OSC_PCI_ASPM_SUPPORT 0x00000002
505 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
506 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
507 #define OSC_PCI_MSI_SUPPORT 0x00000010
508 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
510 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
511 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
512 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
513 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
514 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
515 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
516 #define OSC_PCI_CONTROL_MASKS 0x0000001f
518 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
519 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
520 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
521 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
522 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
523 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
524 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
525 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
526 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
527 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
529 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
532 /* Enable _OST when all relevant hotplug operations are enabled */
533 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
534 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
535 defined(CONFIG_ACPI_CONTAINER)
536 #define ACPI_HOTPLUG_OST
539 /* _OST Source Event Code (OSPM Action) */
540 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
541 #define ACPI_OST_EC_OSPM_EJECT 0x103
542 #define ACPI_OST_EC_OSPM_INSERTION 0x200
544 /* _OST General Processing Status Code */
545 #define ACPI_OST_SC_SUCCESS 0x0
546 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
547 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
549 /* _OST OS Shutdown Processing (0x100) Status Code */
550 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
551 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
552 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
553 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
555 /* _OST Ejection Request (0x3, 0x103) Status Code */
556 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
557 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
558 #define ACPI_OST_SC_DEVICE_BUSY 0x82
559 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
560 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
562 /* _OST Insertion Request (0x200) Status Code */
563 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
564 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
565 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
567 enum acpi_predicate {
571 greater_than_or_equal,
574 /* Table must be terminted by a NULL entry */
575 struct acpi_platform_list {
576 char oem_id[ACPI_OEM_ID_SIZE+1];
577 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
580 enum acpi_predicate pred;
584 int acpi_match_platform_list(const struct acpi_platform_list *plat);
586 extern void acpi_early_init(void);
587 extern void acpi_subsystem_init(void);
589 extern int acpi_nvs_register(__u64 start, __u64 size);
591 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
594 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
595 const struct device *dev);
597 extern bool acpi_driver_match_device(struct device *dev,
598 const struct device_driver *drv);
599 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
600 int acpi_device_modalias(struct device *, char *, int);
601 void acpi_walk_dep_device_list(acpi_handle handle);
603 struct platform_device *acpi_create_platform_device(struct acpi_device *,
604 struct property_entry *);
605 #define ACPI_PTR(_ptr) (_ptr)
607 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
609 adev->flags.visited = true;
612 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
614 adev->flags.visited = false;
617 enum acpi_reconfig_event {
618 ACPI_RECONFIG_DEVICE_ADD = 0,
619 ACPI_RECONFIG_DEVICE_REMOVE,
622 int acpi_reconfig_notifier_register(struct notifier_block *nb);
623 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
625 #ifdef CONFIG_ACPI_GTDT
626 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
627 int acpi_gtdt_map_ppi(int type);
628 bool acpi_gtdt_c3stop(int type);
629 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
632 #else /* !CONFIG_ACPI */
634 #define acpi_disabled 1
636 #define ACPI_COMPANION(dev) (NULL)
637 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
638 #define ACPI_HANDLE(dev) (NULL)
639 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
641 struct fwnode_handle;
643 static inline bool acpi_dev_found(const char *hid)
648 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
653 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
658 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
663 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
668 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
673 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
678 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
684 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
689 static inline bool has_acpi_companion(struct device *dev)
694 static inline void acpi_preset_companion(struct device *dev,
695 struct acpi_device *parent, u64 addr)
699 static inline const char *acpi_dev_name(struct acpi_device *adev)
704 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
709 static inline void acpi_early_init(void) { }
710 static inline void acpi_subsystem_init(void) { }
712 static inline int early_acpi_boot_init(void)
716 static inline int acpi_boot_init(void)
721 static inline void acpi_boot_table_prepare(void)
725 static inline void acpi_boot_table_init(void)
729 static inline int acpi_mps_check(void)
734 static inline int acpi_check_resource_conflict(struct resource *res)
739 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
745 struct acpi_table_header;
746 static inline int acpi_table_parse(char *id,
747 int (*handler)(struct acpi_table_header *))
752 static inline int acpi_nvs_register(__u64 start, __u64 size)
757 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
763 struct acpi_device_id;
765 static inline const struct acpi_device_id *acpi_match_device(
766 const struct acpi_device_id *ids, const struct device *dev)
771 static inline bool acpi_driver_match_device(struct device *dev,
772 const struct device_driver *drv)
777 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
780 union acpi_object *argv4)
785 static inline int acpi_device_uevent_modalias(struct device *dev,
786 struct kobj_uevent_env *env)
791 static inline int acpi_device_modalias(struct device *dev,
797 static inline struct platform_device *
798 acpi_create_platform_device(struct acpi_device *adev,
799 struct property_entry *properties)
804 static inline bool acpi_dma_supported(struct acpi_device *adev)
809 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
811 return DEV_DMA_NOT_SUPPORTED;
814 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
815 u64 *offset, u64 *size)
820 static inline int acpi_dma_configure(struct device *dev,
821 enum dev_dma_attr attr)
826 static inline void acpi_dma_deconfigure(struct device *dev) { }
828 #define ACPI_PTR(_ptr) (NULL)
830 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
834 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
838 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
843 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
848 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
853 #endif /* !CONFIG_ACPI */
855 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
856 int acpi_ioapic_add(acpi_handle root);
858 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
862 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
863 u32 pm1a_ctrl, u32 pm1b_ctrl));
865 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
866 u32 pm1a_control, u32 pm1b_control);
868 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
869 u32 val_a, u32 val_b));
871 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
872 u32 val_a, u32 val_b);
875 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
877 static inline void arch_reserve_mem_area(acpi_physical_address addr,
881 #endif /* CONFIG_X86 */
883 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
886 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
887 int acpi_dev_runtime_suspend(struct device *dev);
888 int acpi_dev_runtime_resume(struct device *dev);
889 int acpi_subsys_runtime_suspend(struct device *dev);
890 int acpi_subsys_runtime_resume(struct device *dev);
891 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
892 int acpi_dev_pm_attach(struct device *dev, bool power_on);
894 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
895 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
896 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
897 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
898 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
902 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
908 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
909 int acpi_dev_suspend_late(struct device *dev);
910 int acpi_dev_resume_early(struct device *dev);
911 int acpi_subsys_prepare(struct device *dev);
912 void acpi_subsys_complete(struct device *dev);
913 int acpi_subsys_suspend_late(struct device *dev);
914 int acpi_subsys_resume_early(struct device *dev);
915 int acpi_subsys_suspend(struct device *dev);
916 int acpi_subsys_freeze(struct device *dev);
918 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
919 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
920 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
921 static inline void acpi_subsys_complete(struct device *dev) {}
922 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
923 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
924 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
925 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
930 void acpi_handle_printk(const char *level, acpi_handle handle,
931 const char *fmt, ...);
932 #else /* !CONFIG_ACPI */
933 static inline __printf(3, 4) void
934 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
935 #endif /* !CONFIG_ACPI */
937 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
939 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
941 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
942 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
946 * acpi_handle_<level>: Print message with ACPI prefix and object path
948 * These interfaces acquire the global namespace mutex to obtain an object
949 * path. In interrupt context, it shows the object path as <n/a>.
951 #define acpi_handle_emerg(handle, fmt, ...) \
952 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
953 #define acpi_handle_alert(handle, fmt, ...) \
954 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
955 #define acpi_handle_crit(handle, fmt, ...) \
956 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
957 #define acpi_handle_err(handle, fmt, ...) \
958 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
959 #define acpi_handle_warn(handle, fmt, ...) \
960 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
961 #define acpi_handle_notice(handle, fmt, ...) \
962 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
963 #define acpi_handle_info(handle, fmt, ...) \
964 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
967 #define acpi_handle_debug(handle, fmt, ...) \
968 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
970 #if defined(CONFIG_DYNAMIC_DEBUG)
971 #define acpi_handle_debug(handle, fmt, ...) \
973 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
974 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
975 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
979 #define acpi_handle_debug(handle, fmt, ...) \
982 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
988 struct acpi_gpio_params {
989 unsigned int crs_entry_index;
990 unsigned int line_index;
994 struct acpi_gpio_mapping {
996 const struct acpi_gpio_params *data;
1000 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1001 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1002 const struct acpi_gpio_mapping *gpios);
1004 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
1007 adev->driver_gpios = NULL;
1010 int devm_acpi_dev_add_driver_gpios(struct device *dev,
1011 const struct acpi_gpio_mapping *gpios);
1012 void devm_acpi_dev_remove_driver_gpios(struct device *dev);
1014 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1015 struct acpi_resource_gpio **agpio);
1016 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
1018 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1019 const struct acpi_gpio_mapping *gpios)
1023 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
1025 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
1026 const struct acpi_gpio_mapping *gpios)
1030 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
1032 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1033 struct acpi_resource_gpio **agpio)
1037 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1043 /* Device properties */
1045 #define MAX_ACPI_REFERENCE_ARGS 8
1046 struct acpi_reference_args {
1047 struct acpi_device *adev;
1049 u64 args[MAX_ACPI_REFERENCE_ARGS];
1053 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1054 acpi_object_type type, const union acpi_object **obj);
1055 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1056 const char *name, size_t index, size_t num_args,
1057 struct acpi_reference_args *args);
1059 static inline int acpi_node_get_property_reference(
1060 const struct fwnode_handle *fwnode,
1061 const char *name, size_t index,
1062 struct acpi_reference_args *args)
1064 return __acpi_node_get_property_reference(fwnode, name, index,
1065 MAX_ACPI_REFERENCE_ARGS, args);
1068 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1070 int acpi_dev_prop_read_single(struct acpi_device *adev,
1071 const char *propname, enum dev_prop_type proptype,
1073 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1074 const char *propname, enum dev_prop_type proptype,
1075 void *val, size_t nval);
1076 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1077 enum dev_prop_type proptype, void *val, size_t nval);
1079 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1080 struct fwnode_handle *child);
1081 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1083 struct fwnode_handle *
1084 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1085 struct fwnode_handle *prev);
1086 int acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1087 struct fwnode_handle **remote,
1088 struct fwnode_handle **port,
1089 struct fwnode_handle **endpoint);
1091 struct acpi_probe_entry;
1092 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1093 struct acpi_probe_entry *);
1095 #define ACPI_TABLE_ID_LEN 5
1098 * struct acpi_probe_entry - boot-time probing entry
1099 * @id: ACPI table name
1100 * @type: Optional subtable type to match
1101 * (if @id contains subtables)
1102 * @subtable_valid: Optional callback to check the validity of
1104 * @probe_table: Callback to the driver being probed when table
1105 * match is successful
1106 * @probe_subtbl: Callback to the driver being probed when table and
1107 * subtable match (and optional callback is successful)
1108 * @driver_data: Sideband data provided back to the driver
1110 struct acpi_probe_entry {
1111 __u8 id[ACPI_TABLE_ID_LEN];
1113 acpi_probe_entry_validate_subtbl subtable_valid;
1115 acpi_tbl_table_handler probe_table;
1116 acpi_tbl_entry_handler probe_subtbl;
1118 kernel_ulong_t driver_data;
1121 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1122 static const struct acpi_probe_entry __acpi_probe_##name \
1123 __used __section(__##table##_acpi_probe_table) \
1127 .subtable_valid = valid, \
1128 .probe_table = (acpi_tbl_table_handler)fn, \
1129 .driver_data = data, \
1132 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1133 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1135 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1137 #define acpi_probe_device_table(t) \
1139 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1140 ACPI_PROBE_TABLE_END(t); \
1141 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1142 (&ACPI_PROBE_TABLE_END(t) - \
1143 &ACPI_PROBE_TABLE(t))); \
1146 static inline int acpi_dev_get_property(struct acpi_device *adev,
1147 const char *name, acpi_object_type type,
1148 const union acpi_object **obj)
1154 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1155 const char *name, size_t index, size_t num_args,
1156 struct acpi_reference_args *args)
1162 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1163 const char *name, size_t index,
1164 struct acpi_reference_args *args)
1169 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1170 const char *propname,
1176 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1177 const char *propname,
1183 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1184 const char *propname,
1185 enum dev_prop_type proptype,
1191 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1192 const char *propname,
1193 enum dev_prop_type proptype,
1194 void *val, size_t nval)
1199 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1200 const char *propname,
1201 enum dev_prop_type proptype,
1202 void *val, size_t nval)
1207 static inline struct fwnode_handle *
1208 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1209 struct fwnode_handle *child)
1214 static inline struct fwnode_handle *
1215 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1220 static inline struct fwnode_handle *
1221 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1222 struct fwnode_handle *prev)
1224 return ERR_PTR(-ENXIO);
1228 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1229 struct fwnode_handle **remote,
1230 struct fwnode_handle **port,
1231 struct fwnode_handle **endpoint)
1236 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1237 static const void * __acpi_table_##name[] \
1238 __attribute__((unused)) \
1239 = { (void *) table_id, \
1240 (void *) subtable, \
1245 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1248 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1249 void acpi_table_upgrade(void);
1251 static inline void acpi_table_upgrade(void) { }
1254 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1255 extern bool acpi_has_watchdog(void);
1257 static inline bool acpi_has_watchdog(void) { return false; }
1260 #ifdef CONFIG_ACPI_SPCR_TABLE
1261 extern bool qdf2400_e44_present;
1262 int parse_spcr(bool earlycon);
1264 static inline int parse_spcr(bool earlycon) { return 0; }
1267 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1268 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1271 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1277 #endif /*_LINUX_ACPI_H*/