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>
33 #include <acpi/acpi.h>
37 #include <linux/list.h>
38 #include <linux/mod_devicetable.h>
39 #include <linux/dynamic_debug.h>
40 #include <linux/module.h>
41 #include <linux/mutex.h>
43 #include <acpi/acpi_bus.h>
44 #include <acpi/acpi_drivers.h>
45 #include <acpi/acpi_numa.h>
46 #include <acpi/acpi_io.h>
49 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
51 return adev ? adev->handle : NULL;
54 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
55 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
56 acpi_fwnode_handle(adev) : NULL)
57 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
59 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
61 struct fwnode_handle *fwnode;
63 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
67 fwnode->type = FWNODE_ACPI_STATIC;
72 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
74 if (WARN_ON(!fwnode || fwnode->type != FWNODE_ACPI_STATIC))
81 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
82 * the PCI-defined class-code information
84 * @_cls : the class, subclass, prog-if triple for this device
85 * @_msk : the class mask for this device
87 * This macro is used to create a struct acpi_device_id that matches a
88 * specific PCI class. The .id and .driver_data fields will be left
89 * initialized with the default value.
91 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
93 static inline bool has_acpi_companion(struct device *dev)
95 return is_acpi_device_node(dev->fwnode);
98 static inline void acpi_preset_companion(struct device *dev,
99 struct acpi_device *parent, u64 addr)
101 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
104 static inline const char *acpi_dev_name(struct acpi_device *adev)
106 return dev_name(&adev->dev);
109 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
111 enum acpi_irq_model_id {
112 ACPI_IRQ_MODEL_PIC = 0,
113 ACPI_IRQ_MODEL_IOAPIC,
114 ACPI_IRQ_MODEL_IOSAPIC,
115 ACPI_IRQ_MODEL_PLATFORM,
120 extern enum acpi_irq_model_id acpi_irq_model;
122 enum acpi_interrupt_id {
123 ACPI_INTERRUPT_PMI = 1,
129 #define ACPI_SPACE_MEM 0
131 enum acpi_address_range_id {
132 ACPI_ADDRESS_RANGE_MEMORY = 1,
133 ACPI_ADDRESS_RANGE_RESERVED = 2,
134 ACPI_ADDRESS_RANGE_ACPI = 3,
135 ACPI_ADDRESS_RANGE_NVS = 4,
136 ACPI_ADDRESS_RANGE_COUNT
142 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
144 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
145 const unsigned long end);
147 /* Debugger support */
149 struct acpi_debugger_ops {
150 int (*create_thread)(acpi_osd_exec_callback function, void *context);
151 ssize_t (*write_log)(const char *msg);
152 ssize_t (*read_cmd)(char *buffer, size_t length);
153 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
154 int (*notify_command_complete)(void);
157 struct acpi_debugger {
158 const struct acpi_debugger_ops *ops;
159 struct module *owner;
163 #ifdef CONFIG_ACPI_DEBUGGER
164 int __init acpi_debugger_init(void);
165 int acpi_register_debugger(struct module *owner,
166 const struct acpi_debugger_ops *ops);
167 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
168 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
169 ssize_t acpi_debugger_write_log(const char *msg);
170 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
171 int acpi_debugger_wait_command_ready(void);
172 int acpi_debugger_notify_command_complete(void);
174 static inline int acpi_debugger_init(void)
179 static inline int acpi_register_debugger(struct module *owner,
180 const struct acpi_debugger_ops *ops)
185 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
189 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
195 static inline int acpi_debugger_write_log(const char *msg)
200 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
205 static inline int acpi_debugger_wait_command_ready(void)
210 static inline int acpi_debugger_notify_command_complete(void)
216 #define BAD_MADT_ENTRY(entry, end) ( \
217 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
218 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220 struct acpi_subtable_proc {
222 acpi_tbl_entry_handler handler;
226 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
227 void __acpi_unmap_table(char *map, unsigned long size);
228 int early_acpi_boot_init(void);
229 int acpi_boot_init (void);
230 void acpi_boot_table_init (void);
231 int acpi_mps_check (void);
232 int acpi_numa_init (void);
234 int acpi_table_init (void);
235 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
236 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
238 acpi_tbl_entry_handler handler,
239 unsigned int max_entries);
240 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
241 struct acpi_subtable_proc *proc, int proc_num,
242 unsigned int max_entries);
243 int acpi_table_parse_madt(enum acpi_madt_type id,
244 acpi_tbl_entry_handler handler,
245 unsigned int max_entries);
246 int acpi_parse_mcfg (struct acpi_table_header *header);
247 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
249 /* the following numa functions are architecture-dependent */
250 void acpi_numa_slit_init (struct acpi_table_slit *slit);
252 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
253 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
256 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
259 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
262 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
265 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
268 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
270 #ifndef PHYS_CPUID_INVALID
271 typedef u32 phys_cpuid_t;
272 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
275 static inline bool invalid_logical_cpuid(u32 cpuid)
277 return (int)cpuid < 0;
280 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
282 return phys_id == PHYS_CPUID_INVALID;
285 /* Validate the processor object's proc_id */
286 bool acpi_duplicate_processor_id(int proc_id);
288 #ifdef CONFIG_ACPI_HOTPLUG_CPU
289 /* Arch dependent functions for cpu hotplug support */
290 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
292 int acpi_unmap_cpu(int cpu);
293 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
295 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
296 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
299 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
300 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
301 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
302 void acpi_irq_stats_init(void);
303 extern u32 acpi_irq_handled;
304 extern u32 acpi_irq_not_handled;
305 extern unsigned int acpi_sci_irq;
306 extern bool acpi_no_s5;
307 #define INVALID_ACPI_IRQ ((unsigned)-1)
308 static inline bool acpi_sci_irq_valid(void)
310 return acpi_sci_irq != INVALID_ACPI_IRQ;
314 extern unsigned long acpi_realmode_flags;
316 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
317 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
318 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
320 void acpi_set_irq_model(enum acpi_irq_model_id model,
321 struct fwnode_handle *fwnode);
323 #ifdef CONFIG_X86_IO_APIC
324 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
326 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
329 * This function undoes the effect of one call to acpi_register_gsi().
330 * If this matches the last registration, any IRQ resources for gsi
333 void acpi_unregister_gsi (u32 gsi);
337 int acpi_pci_irq_enable (struct pci_dev *dev);
338 void acpi_penalize_isa_irq(int irq, int active);
339 bool acpi_isa_irq_available(int irq);
340 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
341 void acpi_pci_irq_disable (struct pci_dev *dev);
343 extern int ec_read(u8 addr, u8 *val);
344 extern int ec_write(u8 addr, u8 val);
345 extern int ec_transaction(u8 command,
346 const u8 *wdata, unsigned wdata_len,
347 u8 *rdata, unsigned rdata_len);
348 extern acpi_handle ec_get_handle(void);
350 extern bool acpi_is_pnp_device(struct acpi_device *);
352 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
354 typedef void (*wmi_notify_handler) (u32 value, void *context);
356 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
358 const struct acpi_buffer *in,
359 struct acpi_buffer *out);
360 extern acpi_status wmi_query_block(const char *guid, u8 instance,
361 struct acpi_buffer *out);
362 extern acpi_status wmi_set_block(const char *guid, u8 instance,
363 const struct acpi_buffer *in);
364 extern acpi_status wmi_install_notify_handler(const char *guid,
365 wmi_notify_handler handler, void *data);
366 extern acpi_status wmi_remove_notify_handler(const char *guid);
367 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
368 extern bool wmi_has_guid(const char *guid);
370 #endif /* CONFIG_ACPI_WMI */
372 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
373 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
374 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
375 #define ACPI_VIDEO_BACKLIGHT 0x0008
376 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
378 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
380 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
381 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
382 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
385 extern char acpi_video_backlight_string[];
386 extern long acpi_is_video_device(acpi_handle handle);
387 extern int acpi_blacklisted(void);
388 extern void acpi_osi_setup(char *str);
389 extern bool acpi_osi_is_win8(void);
391 #ifdef CONFIG_ACPI_NUMA
392 int acpi_map_pxm_to_online_node(int pxm);
393 int acpi_get_node(acpi_handle handle);
395 static inline int acpi_map_pxm_to_online_node(int pxm)
399 static inline int acpi_get_node(acpi_handle handle)
404 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
406 extern int pnpacpi_disabled;
408 #define PXM_INVAL (-1)
410 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
411 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
412 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
413 struct resource_win *win);
414 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
415 struct resource_win *win);
416 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
417 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
418 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
419 struct resource *res);
421 void acpi_dev_free_resource_list(struct list_head *list);
422 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
423 int (*preproc)(struct acpi_resource *, void *),
425 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
426 unsigned long types);
428 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
431 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
434 struct acpi_device *acpi_resource_consumer(struct resource *res);
436 int acpi_check_resource_conflict(const struct resource *res);
438 int acpi_check_region(resource_size_t start, resource_size_t n,
441 int acpi_resources_are_enforced(void);
443 #ifdef CONFIG_HIBERNATION
444 void __init acpi_no_s4_hw_signature(void);
447 #ifdef CONFIG_PM_SLEEP
448 void __init acpi_old_suspend_ordering(void);
449 void __init acpi_nvs_nosave(void);
450 void __init acpi_nvs_nosave_s3(void);
451 #endif /* CONFIG_PM_SLEEP */
453 struct acpi_osc_context {
454 char *uuid_str; /* UUID string */
456 struct acpi_buffer cap; /* list of DWORD capabilities */
457 struct acpi_buffer ret; /* free by caller if success */
460 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
461 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
463 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
464 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
465 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
466 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
468 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
469 #define OSC_QUERY_ENABLE 0x00000001 /* input */
470 #define OSC_REQUEST_ERROR 0x00000002 /* return */
471 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
472 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
473 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
475 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
476 #define OSC_SB_PAD_SUPPORT 0x00000001
477 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
478 #define OSC_SB_PR3_SUPPORT 0x00000004
479 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
480 #define OSC_SB_APEI_SUPPORT 0x00000010
481 #define OSC_SB_CPC_SUPPORT 0x00000020
482 #define OSC_SB_CPCV2_SUPPORT 0x00000040
483 #define OSC_SB_PCLPI_SUPPORT 0x00000080
484 #define OSC_SB_OSLPI_SUPPORT 0x00000100
485 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
487 extern bool osc_sb_apei_support_acked;
488 extern bool osc_pc_lpi_support_confirmed;
490 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
491 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
492 #define OSC_PCI_ASPM_SUPPORT 0x00000002
493 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
494 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
495 #define OSC_PCI_MSI_SUPPORT 0x00000010
496 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
498 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
499 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
500 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
501 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
502 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
503 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
504 #define OSC_PCI_CONTROL_MASKS 0x0000001f
506 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
507 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
508 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
509 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
510 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
511 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
512 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
513 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
514 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
515 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
517 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
520 /* Enable _OST when all relevant hotplug operations are enabled */
521 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
522 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
523 defined(CONFIG_ACPI_CONTAINER)
524 #define ACPI_HOTPLUG_OST
527 /* _OST Source Event Code (OSPM Action) */
528 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
529 #define ACPI_OST_EC_OSPM_EJECT 0x103
530 #define ACPI_OST_EC_OSPM_INSERTION 0x200
532 /* _OST General Processing Status Code */
533 #define ACPI_OST_SC_SUCCESS 0x0
534 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
535 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
537 /* _OST OS Shutdown Processing (0x100) Status Code */
538 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
539 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
540 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
541 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
543 /* _OST Ejection Request (0x3, 0x103) Status Code */
544 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
545 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
546 #define ACPI_OST_SC_DEVICE_BUSY 0x82
547 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
548 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
550 /* _OST Insertion Request (0x200) Status Code */
551 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
552 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
553 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
555 extern void acpi_early_init(void);
556 extern void acpi_subsystem_init(void);
558 extern int acpi_nvs_register(__u64 start, __u64 size);
560 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
563 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
564 const struct device *dev);
566 extern bool acpi_driver_match_device(struct device *dev,
567 const struct device_driver *drv);
568 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
569 int acpi_device_modalias(struct device *, char *, int);
570 void acpi_walk_dep_device_list(acpi_handle handle);
572 struct platform_device *acpi_create_platform_device(struct acpi_device *,
573 struct property_entry *);
574 #define ACPI_PTR(_ptr) (_ptr)
576 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
578 adev->flags.visited = true;
581 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
583 adev->flags.visited = false;
586 enum acpi_reconfig_event {
587 ACPI_RECONFIG_DEVICE_ADD = 0,
588 ACPI_RECONFIG_DEVICE_REMOVE,
591 int acpi_reconfig_notifier_register(struct notifier_block *nb);
592 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
594 #else /* !CONFIG_ACPI */
596 #define acpi_disabled 1
598 #define ACPI_COMPANION(dev) (NULL)
599 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
600 #define ACPI_HANDLE(dev) (NULL)
601 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
603 struct fwnode_handle;
605 static inline bool acpi_dev_found(const char *hid)
610 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
615 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
620 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
625 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
630 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
635 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
641 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
646 static inline bool has_acpi_companion(struct device *dev)
651 static inline void acpi_preset_companion(struct device *dev,
652 struct acpi_device *parent, u64 addr)
656 static inline const char *acpi_dev_name(struct acpi_device *adev)
661 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
666 static inline void acpi_early_init(void) { }
667 static inline void acpi_subsystem_init(void) { }
669 static inline int early_acpi_boot_init(void)
673 static inline int acpi_boot_init(void)
678 static inline void acpi_boot_table_init(void)
683 static inline int acpi_mps_check(void)
688 static inline int acpi_check_resource_conflict(struct resource *res)
693 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
699 struct acpi_table_header;
700 static inline int acpi_table_parse(char *id,
701 int (*handler)(struct acpi_table_header *))
706 static inline int acpi_nvs_register(__u64 start, __u64 size)
711 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
717 struct acpi_device_id;
719 static inline const struct acpi_device_id *acpi_match_device(
720 const struct acpi_device_id *ids, const struct device *dev)
725 static inline bool acpi_driver_match_device(struct device *dev,
726 const struct device_driver *drv)
731 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
734 union acpi_object *argv4)
739 static inline int acpi_device_uevent_modalias(struct device *dev,
740 struct kobj_uevent_env *env)
745 static inline int acpi_device_modalias(struct device *dev,
751 static inline bool acpi_dma_supported(struct acpi_device *adev)
756 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
758 return DEV_DMA_NOT_SUPPORTED;
761 static inline void acpi_dma_configure(struct device *dev,
762 enum dev_dma_attr attr) { }
764 static inline void acpi_dma_deconfigure(struct device *dev) { }
766 #define ACPI_PTR(_ptr) (NULL)
768 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
772 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
776 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
781 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
786 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
791 #endif /* !CONFIG_ACPI */
793 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
794 int acpi_ioapic_add(acpi_handle root);
796 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
800 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
801 u32 pm1a_ctrl, u32 pm1b_ctrl));
803 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
804 u32 pm1a_control, u32 pm1b_control);
806 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
807 u32 val_a, u32 val_b));
809 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
810 u32 val_a, u32 val_b);
813 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
815 static inline void arch_reserve_mem_area(acpi_physical_address addr,
819 #endif /* CONFIG_X86 */
821 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
824 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
825 int acpi_dev_runtime_suspend(struct device *dev);
826 int acpi_dev_runtime_resume(struct device *dev);
827 int acpi_subsys_runtime_suspend(struct device *dev);
828 int acpi_subsys_runtime_resume(struct device *dev);
829 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
830 int acpi_dev_pm_attach(struct device *dev, bool power_on);
832 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
833 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
834 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
835 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
836 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
840 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
846 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
847 int acpi_dev_suspend_late(struct device *dev);
848 int acpi_dev_resume_early(struct device *dev);
849 int acpi_subsys_prepare(struct device *dev);
850 void acpi_subsys_complete(struct device *dev);
851 int acpi_subsys_suspend_late(struct device *dev);
852 int acpi_subsys_resume_early(struct device *dev);
853 int acpi_subsys_suspend(struct device *dev);
854 int acpi_subsys_freeze(struct device *dev);
856 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
857 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
858 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
859 static inline void acpi_subsys_complete(struct device *dev) {}
860 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
861 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
862 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
863 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
868 void acpi_handle_printk(const char *level, acpi_handle handle,
869 const char *fmt, ...);
870 #else /* !CONFIG_ACPI */
871 static inline __printf(3, 4) void
872 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
873 #endif /* !CONFIG_ACPI */
875 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
877 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
879 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
880 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
884 * acpi_handle_<level>: Print message with ACPI prefix and object path
886 * These interfaces acquire the global namespace mutex to obtain an object
887 * path. In interrupt context, it shows the object path as <n/a>.
889 #define acpi_handle_emerg(handle, fmt, ...) \
890 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
891 #define acpi_handle_alert(handle, fmt, ...) \
892 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
893 #define acpi_handle_crit(handle, fmt, ...) \
894 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
895 #define acpi_handle_err(handle, fmt, ...) \
896 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
897 #define acpi_handle_warn(handle, fmt, ...) \
898 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
899 #define acpi_handle_notice(handle, fmt, ...) \
900 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
901 #define acpi_handle_info(handle, fmt, ...) \
902 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
905 #define acpi_handle_debug(handle, fmt, ...) \
906 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
908 #if defined(CONFIG_DYNAMIC_DEBUG)
909 #define acpi_handle_debug(handle, fmt, ...) \
911 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
912 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
913 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
917 #define acpi_handle_debug(handle, fmt, ...) \
920 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
926 struct acpi_gpio_params {
927 unsigned int crs_entry_index;
928 unsigned int line_index;
932 struct acpi_gpio_mapping {
934 const struct acpi_gpio_params *data;
938 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
939 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
940 const struct acpi_gpio_mapping *gpios);
942 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
945 adev->driver_gpios = NULL;
948 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
950 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
951 const struct acpi_gpio_mapping *gpios)
955 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
957 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
963 /* Device properties */
965 #define MAX_ACPI_REFERENCE_ARGS 8
966 struct acpi_reference_args {
967 struct acpi_device *adev;
969 u64 args[MAX_ACPI_REFERENCE_ARGS];
973 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
974 acpi_object_type type, const union acpi_object **obj);
975 int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
976 const char *name, size_t index, size_t num_args,
977 struct acpi_reference_args *args);
979 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
980 const char *name, size_t index,
981 struct acpi_reference_args *args)
983 return __acpi_node_get_property_reference(fwnode, name, index,
984 MAX_ACPI_REFERENCE_ARGS, args);
987 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
989 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
990 enum dev_prop_type proptype, void *val);
991 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
992 enum dev_prop_type proptype, void *val, size_t nval);
993 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
994 enum dev_prop_type proptype, void *val, size_t nval);
996 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
997 struct fwnode_handle *subnode);
999 struct acpi_probe_entry;
1000 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1001 struct acpi_probe_entry *);
1003 #define ACPI_TABLE_ID_LEN 5
1006 * struct acpi_probe_entry - boot-time probing entry
1007 * @id: ACPI table name
1008 * @type: Optional subtable type to match
1009 * (if @id contains subtables)
1010 * @subtable_valid: Optional callback to check the validity of
1012 * @probe_table: Callback to the driver being probed when table
1013 * match is successful
1014 * @probe_subtbl: Callback to the driver being probed when table and
1015 * subtable match (and optional callback is successful)
1016 * @driver_data: Sideband data provided back to the driver
1018 struct acpi_probe_entry {
1019 __u8 id[ACPI_TABLE_ID_LEN];
1021 acpi_probe_entry_validate_subtbl subtable_valid;
1023 acpi_tbl_table_handler probe_table;
1024 acpi_tbl_entry_handler probe_subtbl;
1026 kernel_ulong_t driver_data;
1029 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1030 static const struct acpi_probe_entry __acpi_probe_##name \
1031 __used __section(__##table##_acpi_probe_table) \
1035 .subtable_valid = valid, \
1036 .probe_table = (acpi_tbl_table_handler)fn, \
1037 .driver_data = data, \
1040 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1041 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1043 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1045 #define acpi_probe_device_table(t) \
1047 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1048 ACPI_PROBE_TABLE_END(t); \
1049 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1050 (&ACPI_PROBE_TABLE_END(t) - \
1051 &ACPI_PROBE_TABLE(t))); \
1054 static inline int acpi_dev_get_property(struct acpi_device *adev,
1055 const char *name, acpi_object_type type,
1056 const union acpi_object **obj)
1062 __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1063 const char *name, size_t index, size_t num_args,
1064 struct acpi_reference_args *args)
1069 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1070 const char *name, size_t index,
1071 struct acpi_reference_args *args)
1076 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
1077 const char *propname,
1083 static inline int acpi_dev_prop_get(struct acpi_device *adev,
1084 const char *propname,
1090 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
1091 const char *propname,
1092 enum dev_prop_type proptype,
1098 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
1099 const char *propname,
1100 enum dev_prop_type proptype,
1101 void *val, size_t nval)
1106 static inline int acpi_dev_prop_read(struct acpi_device *adev,
1107 const char *propname,
1108 enum dev_prop_type proptype,
1109 void *val, size_t nval)
1114 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
1115 struct fwnode_handle *subnode)
1120 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1121 static const void * __acpi_table_##name[] \
1122 __attribute__((unused)) \
1123 = { (void *) table_id, \
1124 (void *) subtable, \
1129 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1132 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1133 void acpi_table_upgrade(void);
1135 static inline void acpi_table_upgrade(void) { }
1138 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1139 extern bool acpi_has_watchdog(void);
1141 static inline bool acpi_has_watchdog(void) { return false; }
1144 #ifdef CONFIG_ACPI_SPCR_TABLE
1145 int parse_spcr(bool earlycon);
1147 static inline int parse_spcr(bool earlycon) { return 0; }
1150 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1151 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1154 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1160 #endif /*_LINUX_ACPI_H*/