1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * acpi.h - ACPI Interface
5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
11 #include <linux/errno.h>
12 #include <linux/ioport.h> /* for struct resource */
13 #include <linux/irqdomain.h>
14 #include <linux/resource_ext.h>
15 #include <linux/device.h>
16 #include <linux/property.h>
17 #include <linux/uuid.h>
22 #include <acpi/acpi.h>
26 #include <linux/list.h>
27 #include <linux/mod_devicetable.h>
28 #include <linux/dynamic_debug.h>
29 #include <linux/module.h>
30 #include <linux/mutex.h>
32 #include <acpi/acpi_bus.h>
33 #include <acpi/acpi_drivers.h>
34 #include <acpi/acpi_numa.h>
35 #include <acpi/acpi_io.h>
38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
40 return adev ? adev->handle : NULL;
43 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
44 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
45 acpi_fwnode_handle(adev) : NULL)
46 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
47 #define ACPI_HANDLE_FWNODE(fwnode) \
48 acpi_device_handle(to_acpi_device_node(fwnode))
50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
52 struct fwnode_handle *fwnode;
54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
58 fwnode->ops = &acpi_static_fwnode_ops;
63 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
65 if (WARN_ON(!is_acpi_static_node(fwnode)))
72 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
73 * the PCI-defined class-code information
75 * @_cls : the class, subclass, prog-if triple for this device
76 * @_msk : the class mask for this device
78 * This macro is used to create a struct acpi_device_id that matches a
79 * specific PCI class. The .id and .driver_data fields will be left
80 * initialized with the default value.
82 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
84 static inline bool has_acpi_companion(struct device *dev)
86 return is_acpi_device_node(dev->fwnode);
89 static inline void acpi_preset_companion(struct device *dev,
90 struct acpi_device *parent, u64 addr)
92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
95 static inline const char *acpi_dev_name(struct acpi_device *adev)
97 return dev_name(&adev->dev);
100 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
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,
111 extern enum acpi_irq_model_id acpi_irq_model;
113 enum acpi_interrupt_id {
114 ACPI_INTERRUPT_PMI = 1,
120 #define ACPI_SPACE_MEM 0
122 enum acpi_address_range_id {
123 ACPI_ADDRESS_RANGE_MEMORY = 1,
124 ACPI_ADDRESS_RANGE_RESERVED = 2,
125 ACPI_ADDRESS_RANGE_ACPI = 3,
126 ACPI_ADDRESS_RANGE_NVS = 4,
127 ACPI_ADDRESS_RANGE_COUNT
132 union acpi_subtable_headers {
133 struct acpi_subtable_header common;
134 struct acpi_hmat_structure hmat;
137 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
139 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
140 const unsigned long end);
142 /* Debugger support */
144 struct acpi_debugger_ops {
145 int (*create_thread)(acpi_osd_exec_callback function, void *context);
146 ssize_t (*write_log)(const char *msg);
147 ssize_t (*read_cmd)(char *buffer, size_t length);
148 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
149 int (*notify_command_complete)(void);
152 struct acpi_debugger {
153 const struct acpi_debugger_ops *ops;
154 struct module *owner;
158 #ifdef CONFIG_ACPI_DEBUGGER
159 int __init acpi_debugger_init(void);
160 int acpi_register_debugger(struct module *owner,
161 const struct acpi_debugger_ops *ops);
162 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
163 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
164 ssize_t acpi_debugger_write_log(const char *msg);
165 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
166 int acpi_debugger_wait_command_ready(void);
167 int acpi_debugger_notify_command_complete(void);
169 static inline int acpi_debugger_init(void)
174 static inline int acpi_register_debugger(struct module *owner,
175 const struct acpi_debugger_ops *ops)
180 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
184 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
190 static inline int acpi_debugger_write_log(const char *msg)
195 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
200 static inline int acpi_debugger_wait_command_ready(void)
205 static inline int acpi_debugger_notify_command_complete(void)
211 #define BAD_MADT_ENTRY(entry, end) ( \
212 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
213 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
215 struct acpi_subtable_proc {
217 acpi_tbl_entry_handler handler;
221 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
222 void __acpi_unmap_table(void __iomem *map, unsigned long size);
223 int early_acpi_boot_init(void);
224 int acpi_boot_init (void);
225 void acpi_boot_table_init (void);
226 int acpi_mps_check (void);
227 int acpi_numa_init (void);
229 int acpi_table_init (void);
230 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
231 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
233 acpi_tbl_entry_handler handler,
234 unsigned int max_entries);
235 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
236 struct acpi_subtable_proc *proc, int proc_num,
237 unsigned int max_entries);
238 int acpi_table_parse_madt(enum acpi_madt_type id,
239 acpi_tbl_entry_handler handler,
240 unsigned int max_entries);
241 int acpi_parse_mcfg (struct acpi_table_header *header);
242 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
244 /* the following numa functions are architecture-dependent */
245 void acpi_numa_slit_init (struct acpi_table_slit *slit);
247 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
248 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
251 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
254 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
257 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
260 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
263 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
265 #ifndef PHYS_CPUID_INVALID
266 typedef u32 phys_cpuid_t;
267 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
270 static inline bool invalid_logical_cpuid(u32 cpuid)
272 return (int)cpuid < 0;
275 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
277 return phys_id == PHYS_CPUID_INVALID;
280 /* Validate the processor object's proc_id */
281 bool acpi_duplicate_processor_id(int proc_id);
282 /* Processor _CTS control */
283 struct acpi_processor_power;
285 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
286 bool acpi_processor_claim_cst_control(void);
287 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
288 struct acpi_processor_power *info);
290 static inline bool acpi_processor_claim_cst_control(void) { return false; }
291 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
292 struct acpi_processor_power *info)
298 #ifdef CONFIG_ACPI_HOTPLUG_CPU
299 /* Arch dependent functions for cpu hotplug support */
300 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
302 int acpi_unmap_cpu(int cpu);
303 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
305 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
306 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
309 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
310 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
311 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
312 void acpi_irq_stats_init(void);
313 extern u32 acpi_irq_handled;
314 extern u32 acpi_irq_not_handled;
315 extern unsigned int acpi_sci_irq;
316 extern bool acpi_no_s5;
317 #define INVALID_ACPI_IRQ ((unsigned)-1)
318 static inline bool acpi_sci_irq_valid(void)
320 return acpi_sci_irq != INVALID_ACPI_IRQ;
324 extern unsigned long acpi_realmode_flags;
326 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
327 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
328 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
330 void acpi_set_irq_model(enum acpi_irq_model_id model,
331 struct fwnode_handle *fwnode);
333 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
335 struct fwnode_handle *fwnode,
336 const struct irq_domain_ops *ops,
339 #ifdef CONFIG_X86_IO_APIC
340 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
342 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
348 * This function undoes the effect of one call to acpi_register_gsi().
349 * If this matches the last registration, any IRQ resources for gsi
352 void acpi_unregister_gsi (u32 gsi);
356 int acpi_pci_irq_enable (struct pci_dev *dev);
357 void acpi_penalize_isa_irq(int irq, int active);
358 bool acpi_isa_irq_available(int irq);
360 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
362 static inline void acpi_penalize_sci_irq(int irq, int trigger,
367 void acpi_pci_irq_disable (struct pci_dev *dev);
369 extern int ec_read(u8 addr, u8 *val);
370 extern int ec_write(u8 addr, u8 val);
371 extern int ec_transaction(u8 command,
372 const u8 *wdata, unsigned wdata_len,
373 u8 *rdata, unsigned rdata_len);
374 extern acpi_handle ec_get_handle(void);
376 extern bool acpi_is_pnp_device(struct acpi_device *);
378 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
380 typedef void (*wmi_notify_handler) (u32 value, void *context);
382 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
384 const struct acpi_buffer *in,
385 struct acpi_buffer *out);
386 extern acpi_status wmi_query_block(const char *guid, u8 instance,
387 struct acpi_buffer *out);
388 extern acpi_status wmi_set_block(const char *guid, u8 instance,
389 const struct acpi_buffer *in);
390 extern acpi_status wmi_install_notify_handler(const char *guid,
391 wmi_notify_handler handler, void *data);
392 extern acpi_status wmi_remove_notify_handler(const char *guid);
393 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
394 extern bool wmi_has_guid(const char *guid);
395 extern char *wmi_get_acpi_device_uid(const char *guid);
397 #endif /* CONFIG_ACPI_WMI */
399 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
400 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
401 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
402 #define ACPI_VIDEO_BACKLIGHT 0x0008
403 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
404 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
405 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
406 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
407 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
408 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
409 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
410 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
412 extern char acpi_video_backlight_string[];
413 extern long acpi_is_video_device(acpi_handle handle);
414 extern int acpi_blacklisted(void);
415 extern void acpi_osi_setup(char *str);
416 extern bool acpi_osi_is_win8(void);
418 #ifdef CONFIG_ACPI_NUMA
419 int acpi_map_pxm_to_online_node(int pxm);
420 int acpi_map_pxm_to_node(int pxm);
421 int acpi_get_node(acpi_handle handle);
423 static inline int acpi_map_pxm_to_online_node(int pxm)
427 static inline int acpi_map_pxm_to_node(int pxm)
431 static inline int acpi_get_node(acpi_handle handle)
436 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
438 extern int pnpacpi_disabled;
440 #define PXM_INVAL (-1)
442 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
443 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
444 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
445 struct resource_win *win);
446 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
447 struct resource_win *win);
448 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
449 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
450 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
451 struct resource *res);
453 void acpi_dev_free_resource_list(struct list_head *list);
454 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
455 int (*preproc)(struct acpi_resource *, void *),
457 int acpi_dev_get_dma_resources(struct acpi_device *adev,
458 struct list_head *list);
459 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
460 unsigned long types);
462 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
465 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
468 struct acpi_device *acpi_resource_consumer(struct resource *res);
470 int acpi_check_resource_conflict(const struct resource *res);
472 int acpi_check_region(resource_size_t start, resource_size_t n,
475 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
478 int acpi_resources_are_enforced(void);
480 #ifdef CONFIG_HIBERNATION
481 void __init acpi_no_s4_hw_signature(void);
484 #ifdef CONFIG_PM_SLEEP
485 void __init acpi_old_suspend_ordering(void);
486 void __init acpi_nvs_nosave(void);
487 void __init acpi_nvs_nosave_s3(void);
488 void __init acpi_sleep_no_blacklist(void);
489 #endif /* CONFIG_PM_SLEEP */
491 struct acpi_osc_context {
492 char *uuid_str; /* UUID string */
494 struct acpi_buffer cap; /* list of DWORD capabilities */
495 struct acpi_buffer ret; /* free by caller if success */
498 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
500 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
501 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
502 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
503 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
505 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
506 #define OSC_QUERY_ENABLE 0x00000001 /* input */
507 #define OSC_REQUEST_ERROR 0x00000002 /* return */
508 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
509 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
510 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
512 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
513 #define OSC_SB_PAD_SUPPORT 0x00000001
514 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
515 #define OSC_SB_PR3_SUPPORT 0x00000004
516 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
517 #define OSC_SB_APEI_SUPPORT 0x00000010
518 #define OSC_SB_CPC_SUPPORT 0x00000020
519 #define OSC_SB_CPCV2_SUPPORT 0x00000040
520 #define OSC_SB_PCLPI_SUPPORT 0x00000080
521 #define OSC_SB_OSLPI_SUPPORT 0x00000100
522 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
524 extern bool osc_sb_apei_support_acked;
525 extern bool osc_pc_lpi_support_confirmed;
527 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
528 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
529 #define OSC_PCI_ASPM_SUPPORT 0x00000002
530 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
531 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
532 #define OSC_PCI_MSI_SUPPORT 0x00000010
533 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
534 #define OSC_PCI_SUPPORT_MASKS 0x0000011f
536 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
537 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
538 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
539 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
540 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
541 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
542 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
543 #define OSC_PCI_CONTROL_MASKS 0x0000003f
545 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
546 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
547 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
548 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
549 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
550 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
551 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
552 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
553 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
554 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
556 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
559 /* Enable _OST when all relevant hotplug operations are enabled */
560 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
561 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
562 defined(CONFIG_ACPI_CONTAINER)
563 #define ACPI_HOTPLUG_OST
566 /* _OST Source Event Code (OSPM Action) */
567 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
568 #define ACPI_OST_EC_OSPM_EJECT 0x103
569 #define ACPI_OST_EC_OSPM_INSERTION 0x200
571 /* _OST General Processing Status Code */
572 #define ACPI_OST_SC_SUCCESS 0x0
573 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
574 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
576 /* _OST OS Shutdown Processing (0x100) Status Code */
577 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
578 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
579 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
580 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
582 /* _OST Ejection Request (0x3, 0x103) Status Code */
583 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
584 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
585 #define ACPI_OST_SC_DEVICE_BUSY 0x82
586 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
587 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
589 /* _OST Insertion Request (0x200) Status Code */
590 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
591 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
592 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
594 enum acpi_predicate {
598 greater_than_or_equal,
601 /* Table must be terminted by a NULL entry */
602 struct acpi_platform_list {
603 char oem_id[ACPI_OEM_ID_SIZE+1];
604 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
607 enum acpi_predicate pred;
611 int acpi_match_platform_list(const struct acpi_platform_list *plat);
613 extern void acpi_early_init(void);
614 extern void acpi_subsystem_init(void);
615 extern void arch_post_acpi_subsys_init(void);
617 extern int acpi_nvs_register(__u64 start, __u64 size);
619 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
622 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
623 const struct device *dev);
625 const void *acpi_device_get_match_data(const struct device *dev);
626 extern bool acpi_driver_match_device(struct device *dev,
627 const struct device_driver *drv);
628 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
629 int acpi_device_modalias(struct device *, char *, int);
630 void acpi_walk_dep_device_list(acpi_handle handle);
632 struct platform_device *acpi_create_platform_device(struct acpi_device *,
633 struct property_entry *);
634 #define ACPI_PTR(_ptr) (_ptr)
636 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
638 adev->flags.visited = true;
641 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
643 adev->flags.visited = false;
646 enum acpi_reconfig_event {
647 ACPI_RECONFIG_DEVICE_ADD = 0,
648 ACPI_RECONFIG_DEVICE_REMOVE,
651 int acpi_reconfig_notifier_register(struct notifier_block *nb);
652 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
654 #ifdef CONFIG_ACPI_GTDT
655 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
656 int acpi_gtdt_map_ppi(int type);
657 bool acpi_gtdt_c3stop(int type);
658 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
661 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
662 static inline void acpi_arch_set_root_pointer(u64 addr)
667 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
668 static inline u64 acpi_arch_get_root_pointer(void)
674 #else /* !CONFIG_ACPI */
676 #define acpi_disabled 1
678 #define ACPI_COMPANION(dev) (NULL)
679 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
680 #define ACPI_HANDLE(dev) (NULL)
681 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
682 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
684 struct fwnode_handle;
686 static inline bool acpi_dev_found(const char *hid)
691 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
699 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
704 static inline struct acpi_device *
705 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
710 static inline void acpi_dev_put(struct acpi_device *adev) {}
712 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
717 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
722 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
727 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
732 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
737 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
743 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
748 static inline bool has_acpi_companion(struct device *dev)
753 static inline void acpi_preset_companion(struct device *dev,
754 struct acpi_device *parent, u64 addr)
758 static inline const char *acpi_dev_name(struct acpi_device *adev)
763 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
768 static inline void acpi_early_init(void) { }
769 static inline void acpi_subsystem_init(void) { }
771 static inline int early_acpi_boot_init(void)
775 static inline int acpi_boot_init(void)
780 static inline void acpi_boot_table_init(void)
785 static inline int acpi_mps_check(void)
790 static inline int acpi_check_resource_conflict(struct resource *res)
795 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
801 struct acpi_table_header;
802 static inline int acpi_table_parse(char *id,
803 int (*handler)(struct acpi_table_header *))
808 static inline int acpi_nvs_register(__u64 start, __u64 size)
813 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
819 struct acpi_device_id;
821 static inline const struct acpi_device_id *acpi_match_device(
822 const struct acpi_device_id *ids, const struct device *dev)
827 static inline const void *acpi_device_get_match_data(const struct device *dev)
832 static inline bool acpi_driver_match_device(struct device *dev,
833 const struct device_driver *drv)
838 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
841 union acpi_object *argv4)
846 static inline int acpi_device_uevent_modalias(struct device *dev,
847 struct kobj_uevent_env *env)
852 static inline int acpi_device_modalias(struct device *dev,
858 static inline bool acpi_dma_supported(struct acpi_device *adev)
863 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
865 return DEV_DMA_NOT_SUPPORTED;
868 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
869 u64 *offset, u64 *size)
874 static inline int acpi_dma_configure(struct device *dev,
875 enum dev_dma_attr attr)
880 #define ACPI_PTR(_ptr) (NULL)
882 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
886 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
890 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
895 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
900 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
905 #endif /* !CONFIG_ACPI */
907 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
908 int acpi_ioapic_add(acpi_handle root);
910 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
914 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
915 u32 pm1a_ctrl, u32 pm1b_ctrl));
917 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
918 u32 pm1a_control, u32 pm1b_control);
920 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
921 u32 val_a, u32 val_b));
923 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
924 u32 val_a, u32 val_b);
927 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
929 static inline void arch_reserve_mem_area(acpi_physical_address addr,
933 #endif /* CONFIG_X86 */
935 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
938 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
939 int acpi_dev_suspend(struct device *dev, bool wakeup);
940 int acpi_dev_resume(struct device *dev);
941 int acpi_subsys_runtime_suspend(struct device *dev);
942 int acpi_subsys_runtime_resume(struct device *dev);
943 int acpi_dev_pm_attach(struct device *dev, bool power_on);
945 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
946 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
947 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
948 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
949 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
955 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
956 int acpi_subsys_prepare(struct device *dev);
957 void acpi_subsys_complete(struct device *dev);
958 int acpi_subsys_suspend_late(struct device *dev);
959 int acpi_subsys_suspend_noirq(struct device *dev);
960 int acpi_subsys_suspend(struct device *dev);
961 int acpi_subsys_freeze(struct device *dev);
962 int acpi_subsys_poweroff(struct device *dev);
963 void acpi_ec_mark_gpe_for_wake(void);
964 void acpi_ec_set_gpe_wake_mask(u8 action);
966 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
967 static inline void acpi_subsys_complete(struct device *dev) {}
968 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
969 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
970 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
971 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
972 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
973 static inline void acpi_ec_mark_gpe_for_wake(void) {}
974 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
979 void acpi_handle_printk(const char *level, acpi_handle handle,
980 const char *fmt, ...);
981 #else /* !CONFIG_ACPI */
982 static inline __printf(3, 4) void
983 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
984 #endif /* !CONFIG_ACPI */
986 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
988 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
992 * acpi_handle_<level>: Print message with ACPI prefix and object path
994 * These interfaces acquire the global namespace mutex to obtain an object
995 * path. In interrupt context, it shows the object path as <n/a>.
997 #define acpi_handle_emerg(handle, fmt, ...) \
998 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
999 #define acpi_handle_alert(handle, fmt, ...) \
1000 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1001 #define acpi_handle_crit(handle, fmt, ...) \
1002 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1003 #define acpi_handle_err(handle, fmt, ...) \
1004 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1005 #define acpi_handle_warn(handle, fmt, ...) \
1006 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1007 #define acpi_handle_notice(handle, fmt, ...) \
1008 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1009 #define acpi_handle_info(handle, fmt, ...) \
1010 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1013 #define acpi_handle_debug(handle, fmt, ...) \
1014 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1016 #if defined(CONFIG_DYNAMIC_DEBUG)
1017 #define acpi_handle_debug(handle, fmt, ...) \
1018 _dynamic_func_call(fmt, __acpi_handle_debug, \
1019 handle, pr_fmt(fmt), ##__VA_ARGS__)
1021 #define acpi_handle_debug(handle, fmt, ...) \
1024 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1030 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1031 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1032 struct acpi_resource_gpio **agpio);
1033 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
1035 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1036 struct acpi_resource_gpio **agpio)
1040 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1046 /* Device properties */
1049 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1050 acpi_object_type type, const union acpi_object **obj);
1051 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1052 const char *name, size_t index, size_t num_args,
1053 struct fwnode_reference_args *args);
1055 static inline int acpi_node_get_property_reference(
1056 const struct fwnode_handle *fwnode,
1057 const char *name, size_t index,
1058 struct fwnode_reference_args *args)
1060 return __acpi_node_get_property_reference(fwnode, name, index,
1061 NR_FWNODE_REFERENCE_ARGS, args);
1064 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1066 return !list_empty(&adev->data.properties);
1069 struct acpi_device_properties *
1070 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1071 const union acpi_object *properties);
1073 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1075 int acpi_dev_prop_read_single(struct acpi_device *adev,
1076 const char *propname, enum dev_prop_type proptype,
1078 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1079 const char *propname, enum dev_prop_type proptype,
1080 void *val, size_t nval);
1081 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1082 enum dev_prop_type proptype, void *val, size_t nval);
1084 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1085 struct fwnode_handle *child);
1086 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1088 struct acpi_probe_entry;
1089 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1090 struct acpi_probe_entry *);
1092 #define ACPI_TABLE_ID_LEN 5
1095 * struct acpi_probe_entry - boot-time probing entry
1096 * @id: ACPI table name
1097 * @type: Optional subtable type to match
1098 * (if @id contains subtables)
1099 * @subtable_valid: Optional callback to check the validity of
1101 * @probe_table: Callback to the driver being probed when table
1102 * match is successful
1103 * @probe_subtbl: Callback to the driver being probed when table and
1104 * subtable match (and optional callback is successful)
1105 * @driver_data: Sideband data provided back to the driver
1107 struct acpi_probe_entry {
1108 __u8 id[ACPI_TABLE_ID_LEN];
1110 acpi_probe_entry_validate_subtbl subtable_valid;
1112 acpi_tbl_table_handler probe_table;
1113 acpi_tbl_entry_handler probe_subtbl;
1115 kernel_ulong_t driver_data;
1118 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1119 static const struct acpi_probe_entry __acpi_probe_##name \
1120 __used __section(__##table##_acpi_probe_table) \
1124 .subtable_valid = valid, \
1125 .probe_table = (acpi_tbl_table_handler)fn, \
1126 .driver_data = data, \
1129 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1130 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1132 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1134 #define acpi_probe_device_table(t) \
1136 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1137 ACPI_PROBE_TABLE_END(t); \
1138 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1139 (&ACPI_PROBE_TABLE_END(t) - \
1140 &ACPI_PROBE_TABLE(t))); \
1143 static inline int acpi_dev_get_property(struct acpi_device *adev,
1144 const char *name, acpi_object_type type,
1145 const union acpi_object **obj)
1151 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1152 const char *name, size_t index, size_t num_args,
1153 struct fwnode_reference_args *args)
1159 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1160 const char *name, size_t index,
1161 struct fwnode_reference_args *args)
1166 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1167 const char *propname,
1173 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1174 const char *propname,
1180 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1181 const char *propname,
1182 enum dev_prop_type proptype,
1188 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1189 const char *propname,
1190 enum dev_prop_type proptype,
1191 void *val, size_t nval)
1196 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1197 const char *propname,
1198 enum dev_prop_type proptype,
1199 void *val, size_t nval)
1204 static inline struct fwnode_handle *
1205 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1206 struct fwnode_handle *child)
1211 static inline struct fwnode_handle *
1212 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1217 static inline struct fwnode_handle *
1218 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1219 struct fwnode_handle *prev)
1221 return ERR_PTR(-ENXIO);
1225 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1226 struct fwnode_handle **remote,
1227 struct fwnode_handle **port,
1228 struct fwnode_handle **endpoint)
1233 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1234 static const void * __acpi_table_##name[] \
1235 __attribute__((unused)) \
1236 = { (void *) table_id, \
1237 (void *) subtable, \
1242 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1245 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1246 void acpi_table_upgrade(void);
1248 static inline void acpi_table_upgrade(void) { }
1251 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1252 extern bool acpi_has_watchdog(void);
1254 static inline bool acpi_has_watchdog(void) { return false; }
1257 #ifdef CONFIG_ACPI_SPCR_TABLE
1258 extern bool qdf2400_e44_present;
1259 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1261 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
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 #ifdef CONFIG_ACPI_LPIT
1278 int lpit_read_residency_count_address(u64 *address);
1280 static inline int lpit_read_residency_count_address(u64 *address)
1286 #ifdef CONFIG_ACPI_PPTT
1287 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1288 int find_acpi_cpu_topology(unsigned int cpu, int level);
1289 int find_acpi_cpu_topology_package(unsigned int cpu);
1290 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1291 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1293 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1297 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1301 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1305 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1309 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1316 extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1319 acpi_platform_notify(struct device *dev, enum kobject_action action)
1325 #endif /*_LINUX_ACPI_H*/