2 * acpi.h - ACPI Interface
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))
59 #define ACPI_HANDLE_FWNODE(fwnode) \
60 acpi_device_handle(to_acpi_device_node(fwnode))
62 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
64 struct fwnode_handle *fwnode;
66 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
70 fwnode->ops = &acpi_static_fwnode_ops;
75 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
77 if (WARN_ON(!is_acpi_static_node(fwnode)))
84 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
85 * the PCI-defined class-code information
87 * @_cls : the class, subclass, prog-if triple for this device
88 * @_msk : the class mask for this device
90 * This macro is used to create a struct acpi_device_id that matches a
91 * specific PCI class. The .id and .driver_data fields will be left
92 * initialized with the default value.
94 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
96 static inline bool has_acpi_companion(struct device *dev)
98 return is_acpi_device_node(dev->fwnode);
101 static inline void acpi_preset_companion(struct device *dev,
102 struct acpi_device *parent, u64 addr)
104 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
107 static inline const char *acpi_dev_name(struct acpi_device *adev)
109 return dev_name(&adev->dev);
112 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
114 enum acpi_irq_model_id {
115 ACPI_IRQ_MODEL_PIC = 0,
116 ACPI_IRQ_MODEL_IOAPIC,
117 ACPI_IRQ_MODEL_IOSAPIC,
118 ACPI_IRQ_MODEL_PLATFORM,
123 extern enum acpi_irq_model_id acpi_irq_model;
125 enum acpi_interrupt_id {
126 ACPI_INTERRUPT_PMI = 1,
132 #define ACPI_SPACE_MEM 0
134 enum acpi_address_range_id {
135 ACPI_ADDRESS_RANGE_MEMORY = 1,
136 ACPI_ADDRESS_RANGE_RESERVED = 2,
137 ACPI_ADDRESS_RANGE_ACPI = 3,
138 ACPI_ADDRESS_RANGE_NVS = 4,
139 ACPI_ADDRESS_RANGE_COUNT
144 union acpi_subtable_headers {
145 struct acpi_subtable_header common;
146 struct acpi_hmat_structure hmat;
149 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
151 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
152 const unsigned long end);
154 /* Debugger support */
156 struct acpi_debugger_ops {
157 int (*create_thread)(acpi_osd_exec_callback function, void *context);
158 ssize_t (*write_log)(const char *msg);
159 ssize_t (*read_cmd)(char *buffer, size_t length);
160 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
161 int (*notify_command_complete)(void);
164 struct acpi_debugger {
165 const struct acpi_debugger_ops *ops;
166 struct module *owner;
170 #ifdef CONFIG_ACPI_DEBUGGER
171 int __init acpi_debugger_init(void);
172 int acpi_register_debugger(struct module *owner,
173 const struct acpi_debugger_ops *ops);
174 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
175 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
176 ssize_t acpi_debugger_write_log(const char *msg);
177 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
178 int acpi_debugger_wait_command_ready(void);
179 int acpi_debugger_notify_command_complete(void);
181 static inline int acpi_debugger_init(void)
186 static inline int acpi_register_debugger(struct module *owner,
187 const struct acpi_debugger_ops *ops)
192 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
196 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
202 static inline int acpi_debugger_write_log(const char *msg)
207 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
212 static inline int acpi_debugger_wait_command_ready(void)
217 static inline int acpi_debugger_notify_command_complete(void)
223 #define BAD_MADT_ENTRY(entry, end) ( \
224 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
225 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
227 struct acpi_subtable_proc {
229 acpi_tbl_entry_handler handler;
233 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
234 void __acpi_unmap_table(void __iomem *map, unsigned long size);
235 int early_acpi_boot_init(void);
236 int acpi_boot_init (void);
237 void acpi_boot_table_init (void);
238 int acpi_mps_check (void);
239 int acpi_numa_init (void);
241 int acpi_table_init (void);
242 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
243 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
245 acpi_tbl_entry_handler handler,
246 unsigned int max_entries);
247 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
248 struct acpi_subtable_proc *proc, int proc_num,
249 unsigned int max_entries);
250 int acpi_table_parse_madt(enum acpi_madt_type id,
251 acpi_tbl_entry_handler handler,
252 unsigned int max_entries);
253 int acpi_parse_mcfg (struct acpi_table_header *header);
254 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
256 /* the following numa functions are architecture-dependent */
257 void acpi_numa_slit_init (struct acpi_table_slit *slit);
259 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
260 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
263 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
266 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
269 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
272 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
275 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
277 #ifndef PHYS_CPUID_INVALID
278 typedef u32 phys_cpuid_t;
279 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
282 static inline bool invalid_logical_cpuid(u32 cpuid)
284 return (int)cpuid < 0;
287 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
289 return phys_id == PHYS_CPUID_INVALID;
292 /* Validate the processor object's proc_id */
293 bool acpi_duplicate_processor_id(int proc_id);
295 #ifdef CONFIG_ACPI_HOTPLUG_CPU
296 /* Arch dependent functions for cpu hotplug support */
297 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
299 int acpi_unmap_cpu(int cpu);
300 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
302 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
303 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
306 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
307 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
308 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
309 void acpi_irq_stats_init(void);
310 extern u32 acpi_irq_handled;
311 extern u32 acpi_irq_not_handled;
312 extern unsigned int acpi_sci_irq;
313 extern bool acpi_no_s5;
314 #define INVALID_ACPI_IRQ ((unsigned)-1)
315 static inline bool acpi_sci_irq_valid(void)
317 return acpi_sci_irq != INVALID_ACPI_IRQ;
321 extern unsigned long acpi_realmode_flags;
323 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
324 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
325 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
327 void acpi_set_irq_model(enum acpi_irq_model_id model,
328 struct fwnode_handle *fwnode);
330 #ifdef CONFIG_X86_IO_APIC
331 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
333 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
336 * This function undoes the effect of one call to acpi_register_gsi().
337 * If this matches the last registration, any IRQ resources for gsi
340 void acpi_unregister_gsi (u32 gsi);
344 int acpi_pci_irq_enable (struct pci_dev *dev);
345 void acpi_penalize_isa_irq(int irq, int active);
346 bool acpi_isa_irq_available(int irq);
348 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
350 static inline void acpi_penalize_sci_irq(int irq, int trigger,
355 void acpi_pci_irq_disable (struct pci_dev *dev);
357 extern int ec_read(u8 addr, u8 *val);
358 extern int ec_write(u8 addr, u8 val);
359 extern int ec_transaction(u8 command,
360 const u8 *wdata, unsigned wdata_len,
361 u8 *rdata, unsigned rdata_len);
362 extern acpi_handle ec_get_handle(void);
364 extern bool acpi_is_pnp_device(struct acpi_device *);
366 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
368 typedef void (*wmi_notify_handler) (u32 value, void *context);
370 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
372 const struct acpi_buffer *in,
373 struct acpi_buffer *out);
374 extern acpi_status wmi_query_block(const char *guid, u8 instance,
375 struct acpi_buffer *out);
376 extern acpi_status wmi_set_block(const char *guid, u8 instance,
377 const struct acpi_buffer *in);
378 extern acpi_status wmi_install_notify_handler(const char *guid,
379 wmi_notify_handler handler, void *data);
380 extern acpi_status wmi_remove_notify_handler(const char *guid);
381 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
382 extern bool wmi_has_guid(const char *guid);
384 #endif /* CONFIG_ACPI_WMI */
386 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
387 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
388 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
389 #define ACPI_VIDEO_BACKLIGHT 0x0008
390 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
391 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
392 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
393 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
394 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
395 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
396 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
397 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
399 extern char acpi_video_backlight_string[];
400 extern long acpi_is_video_device(acpi_handle handle);
401 extern int acpi_blacklisted(void);
402 extern void acpi_osi_setup(char *str);
403 extern bool acpi_osi_is_win8(void);
405 #ifdef CONFIG_ACPI_NUMA
406 int acpi_map_pxm_to_online_node(int pxm);
407 int acpi_map_pxm_to_node(int pxm);
408 int acpi_get_node(acpi_handle handle);
410 static inline int acpi_map_pxm_to_online_node(int pxm)
414 static inline int acpi_map_pxm_to_node(int pxm)
418 static inline int acpi_get_node(acpi_handle handle)
423 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
425 extern int pnpacpi_disabled;
427 #define PXM_INVAL (-1)
429 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
430 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
431 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
432 struct resource_win *win);
433 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
434 struct resource_win *win);
435 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
436 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
437 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
438 struct resource *res);
440 void acpi_dev_free_resource_list(struct list_head *list);
441 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
442 int (*preproc)(struct acpi_resource *, void *),
444 int acpi_dev_get_dma_resources(struct acpi_device *adev,
445 struct list_head *list);
446 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
447 unsigned long types);
449 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
452 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
455 struct acpi_device *acpi_resource_consumer(struct resource *res);
457 int acpi_check_resource_conflict(const struct resource *res);
459 int acpi_check_region(resource_size_t start, resource_size_t n,
462 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
465 int acpi_resources_are_enforced(void);
467 #ifdef CONFIG_HIBERNATION
468 void __init acpi_no_s4_hw_signature(void);
471 #ifdef CONFIG_PM_SLEEP
472 void __init acpi_old_suspend_ordering(void);
473 void __init acpi_nvs_nosave(void);
474 void __init acpi_nvs_nosave_s3(void);
475 void __init acpi_sleep_no_blacklist(void);
476 #endif /* CONFIG_PM_SLEEP */
478 struct acpi_osc_context {
479 char *uuid_str; /* UUID string */
481 struct acpi_buffer cap; /* list of DWORD capabilities */
482 struct acpi_buffer ret; /* free by caller if success */
485 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
487 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
488 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
489 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
490 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
492 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
493 #define OSC_QUERY_ENABLE 0x00000001 /* input */
494 #define OSC_REQUEST_ERROR 0x00000002 /* return */
495 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
496 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
497 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
499 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
500 #define OSC_SB_PAD_SUPPORT 0x00000001
501 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
502 #define OSC_SB_PR3_SUPPORT 0x00000004
503 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
504 #define OSC_SB_APEI_SUPPORT 0x00000010
505 #define OSC_SB_CPC_SUPPORT 0x00000020
506 #define OSC_SB_CPCV2_SUPPORT 0x00000040
507 #define OSC_SB_PCLPI_SUPPORT 0x00000080
508 #define OSC_SB_OSLPI_SUPPORT 0x00000100
509 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
511 extern bool osc_sb_apei_support_acked;
512 extern bool osc_pc_lpi_support_confirmed;
514 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
515 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
516 #define OSC_PCI_ASPM_SUPPORT 0x00000002
517 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
518 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
519 #define OSC_PCI_MSI_SUPPORT 0x00000010
520 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
521 #define OSC_PCI_SUPPORT_MASKS 0x0000011f
523 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
524 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
525 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
526 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
527 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
528 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
529 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
530 #define OSC_PCI_CONTROL_MASKS 0x0000003f
532 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
533 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
534 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
535 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
536 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
537 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
538 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
539 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
540 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
541 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
543 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
546 /* Enable _OST when all relevant hotplug operations are enabled */
547 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
548 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
549 defined(CONFIG_ACPI_CONTAINER)
550 #define ACPI_HOTPLUG_OST
553 /* _OST Source Event Code (OSPM Action) */
554 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
555 #define ACPI_OST_EC_OSPM_EJECT 0x103
556 #define ACPI_OST_EC_OSPM_INSERTION 0x200
558 /* _OST General Processing Status Code */
559 #define ACPI_OST_SC_SUCCESS 0x0
560 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
561 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
563 /* _OST OS Shutdown Processing (0x100) Status Code */
564 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
565 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
566 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
567 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
569 /* _OST Ejection Request (0x3, 0x103) Status Code */
570 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
571 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
572 #define ACPI_OST_SC_DEVICE_BUSY 0x82
573 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
574 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
576 /* _OST Insertion Request (0x200) Status Code */
577 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
578 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
579 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
581 enum acpi_predicate {
585 greater_than_or_equal,
588 /* Table must be terminted by a NULL entry */
589 struct acpi_platform_list {
590 char oem_id[ACPI_OEM_ID_SIZE+1];
591 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
594 enum acpi_predicate pred;
598 int acpi_match_platform_list(const struct acpi_platform_list *plat);
600 extern void acpi_early_init(void);
601 extern void acpi_subsystem_init(void);
602 extern void arch_post_acpi_subsys_init(void);
604 extern int acpi_nvs_register(__u64 start, __u64 size);
606 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
609 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
610 const struct device *dev);
612 const void *acpi_device_get_match_data(const struct device *dev);
613 extern bool acpi_driver_match_device(struct device *dev,
614 const struct device_driver *drv);
615 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
616 int acpi_device_modalias(struct device *, char *, int);
617 void acpi_walk_dep_device_list(acpi_handle handle);
619 struct platform_device *acpi_create_platform_device(struct acpi_device *,
620 struct property_entry *);
621 #define ACPI_PTR(_ptr) (_ptr)
623 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
625 adev->flags.visited = true;
628 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
630 adev->flags.visited = false;
633 enum acpi_reconfig_event {
634 ACPI_RECONFIG_DEVICE_ADD = 0,
635 ACPI_RECONFIG_DEVICE_REMOVE,
638 int acpi_reconfig_notifier_register(struct notifier_block *nb);
639 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
641 #ifdef CONFIG_ACPI_GTDT
642 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
643 int acpi_gtdt_map_ppi(int type);
644 bool acpi_gtdt_c3stop(int type);
645 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
648 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
649 static inline u64 acpi_arch_get_root_pointer(void)
655 #else /* !CONFIG_ACPI */
657 #define acpi_disabled 1
659 #define ACPI_COMPANION(dev) (NULL)
660 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
661 #define ACPI_HANDLE(dev) (NULL)
662 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
663 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
665 struct fwnode_handle;
667 static inline bool acpi_dev_found(const char *hid)
672 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
677 static inline struct acpi_device *
678 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
683 static inline void acpi_dev_put(struct acpi_device *adev) {}
685 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
690 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
695 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
700 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
705 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
710 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
716 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
721 static inline bool has_acpi_companion(struct device *dev)
726 static inline void acpi_preset_companion(struct device *dev,
727 struct acpi_device *parent, u64 addr)
731 static inline const char *acpi_dev_name(struct acpi_device *adev)
736 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
741 static inline void acpi_early_init(void) { }
742 static inline void acpi_subsystem_init(void) { }
744 static inline int early_acpi_boot_init(void)
748 static inline int acpi_boot_init(void)
753 static inline void acpi_boot_table_init(void)
758 static inline int acpi_mps_check(void)
763 static inline int acpi_check_resource_conflict(struct resource *res)
768 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
774 struct acpi_table_header;
775 static inline int acpi_table_parse(char *id,
776 int (*handler)(struct acpi_table_header *))
781 static inline int acpi_nvs_register(__u64 start, __u64 size)
786 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
792 struct acpi_device_id;
794 static inline const struct acpi_device_id *acpi_match_device(
795 const struct acpi_device_id *ids, const struct device *dev)
800 static inline const void *acpi_device_get_match_data(const struct device *dev)
805 static inline bool acpi_driver_match_device(struct device *dev,
806 const struct device_driver *drv)
811 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
814 union acpi_object *argv4)
819 static inline int acpi_device_uevent_modalias(struct device *dev,
820 struct kobj_uevent_env *env)
825 static inline int acpi_device_modalias(struct device *dev,
831 static inline bool acpi_dma_supported(struct acpi_device *adev)
836 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
838 return DEV_DMA_NOT_SUPPORTED;
841 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
842 u64 *offset, u64 *size)
847 static inline int acpi_dma_configure(struct device *dev,
848 enum dev_dma_attr attr)
853 #define ACPI_PTR(_ptr) (NULL)
855 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
859 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
863 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
868 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
873 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
878 #endif /* !CONFIG_ACPI */
880 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
881 int acpi_ioapic_add(acpi_handle root);
883 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
887 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
888 u32 pm1a_ctrl, u32 pm1b_ctrl));
890 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
891 u32 pm1a_control, u32 pm1b_control);
893 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
894 u32 val_a, u32 val_b));
896 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
897 u32 val_a, u32 val_b);
900 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
902 static inline void arch_reserve_mem_area(acpi_physical_address addr,
906 #endif /* CONFIG_X86 */
908 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
911 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
912 int acpi_dev_suspend(struct device *dev, bool wakeup);
913 int acpi_dev_resume(struct device *dev);
914 int acpi_subsys_runtime_suspend(struct device *dev);
915 int acpi_subsys_runtime_resume(struct device *dev);
916 int acpi_dev_pm_attach(struct device *dev, bool power_on);
918 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
919 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
920 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
921 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
922 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
928 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
929 int acpi_dev_suspend_late(struct device *dev);
930 int acpi_subsys_prepare(struct device *dev);
931 void acpi_subsys_complete(struct device *dev);
932 int acpi_subsys_suspend_late(struct device *dev);
933 int acpi_subsys_suspend_noirq(struct device *dev);
934 int acpi_subsys_resume_noirq(struct device *dev);
935 int acpi_subsys_resume_early(struct device *dev);
936 int acpi_subsys_suspend(struct device *dev);
937 int acpi_subsys_freeze(struct device *dev);
938 int acpi_subsys_freeze_late(struct device *dev);
939 int acpi_subsys_freeze_noirq(struct device *dev);
940 int acpi_subsys_thaw_noirq(struct device *dev);
942 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
943 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
944 static inline void acpi_subsys_complete(struct device *dev) {}
945 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
946 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
947 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; }
948 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
949 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
950 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
951 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; }
952 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; }
953 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; }
958 void acpi_handle_printk(const char *level, acpi_handle handle,
959 const char *fmt, ...);
960 #else /* !CONFIG_ACPI */
961 static inline __printf(3, 4) void
962 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
963 #endif /* !CONFIG_ACPI */
965 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
967 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
971 * acpi_handle_<level>: Print message with ACPI prefix and object path
973 * These interfaces acquire the global namespace mutex to obtain an object
974 * path. In interrupt context, it shows the object path as <n/a>.
976 #define acpi_handle_emerg(handle, fmt, ...) \
977 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
978 #define acpi_handle_alert(handle, fmt, ...) \
979 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
980 #define acpi_handle_crit(handle, fmt, ...) \
981 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
982 #define acpi_handle_err(handle, fmt, ...) \
983 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
984 #define acpi_handle_warn(handle, fmt, ...) \
985 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
986 #define acpi_handle_notice(handle, fmt, ...) \
987 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
988 #define acpi_handle_info(handle, fmt, ...) \
989 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
992 #define acpi_handle_debug(handle, fmt, ...) \
993 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
995 #if defined(CONFIG_DYNAMIC_DEBUG)
996 #define acpi_handle_debug(handle, fmt, ...) \
997 _dynamic_func_call(fmt, __acpi_handle_debug, \
998 handle, pr_fmt(fmt), ##__VA_ARGS__)
1000 #define acpi_handle_debug(handle, fmt, ...) \
1003 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1009 struct acpi_gpio_params {
1010 unsigned int crs_entry_index;
1011 unsigned int line_index;
1015 struct acpi_gpio_mapping {
1017 const struct acpi_gpio_params *data;
1020 /* Ignore IoRestriction field */
1021 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0)
1023 * When ACPI GPIO mapping table is in use the index parameter inside it
1024 * refers to the GPIO resource in _CRS method. That index has no
1025 * distinction of actual type of the resource. When consumer wants to
1026 * get GpioIo type explicitly, this quirk may be used.
1028 #define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1)
1030 unsigned int quirks;
1033 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1034 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1035 const struct acpi_gpio_mapping *gpios);
1037 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
1040 adev->driver_gpios = NULL;
1043 int devm_acpi_dev_add_driver_gpios(struct device *dev,
1044 const struct acpi_gpio_mapping *gpios);
1045 void devm_acpi_dev_remove_driver_gpios(struct device *dev);
1047 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1048 struct acpi_resource_gpio **agpio);
1049 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
1051 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1052 const struct acpi_gpio_mapping *gpios)
1056 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
1058 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
1059 const struct acpi_gpio_mapping *gpios)
1063 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
1065 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1066 struct acpi_resource_gpio **agpio)
1070 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1076 /* Device properties */
1079 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1080 acpi_object_type type, const union acpi_object **obj);
1081 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1082 const char *name, size_t index, size_t num_args,
1083 struct fwnode_reference_args *args);
1085 static inline int acpi_node_get_property_reference(
1086 const struct fwnode_handle *fwnode,
1087 const char *name, size_t index,
1088 struct fwnode_reference_args *args)
1090 return __acpi_node_get_property_reference(fwnode, name, index,
1091 NR_FWNODE_REFERENCE_ARGS, args);
1094 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1096 return !list_empty(&adev->data.properties);
1099 struct acpi_device_properties *
1100 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1101 const union acpi_object *properties);
1103 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1105 int acpi_dev_prop_read_single(struct acpi_device *adev,
1106 const char *propname, enum dev_prop_type proptype,
1108 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1109 const char *propname, enum dev_prop_type proptype,
1110 void *val, size_t nval);
1111 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1112 enum dev_prop_type proptype, void *val, size_t nval);
1114 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1115 struct fwnode_handle *child);
1116 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1118 struct acpi_probe_entry;
1119 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1120 struct acpi_probe_entry *);
1122 #define ACPI_TABLE_ID_LEN 5
1125 * struct acpi_probe_entry - boot-time probing entry
1126 * @id: ACPI table name
1127 * @type: Optional subtable type to match
1128 * (if @id contains subtables)
1129 * @subtable_valid: Optional callback to check the validity of
1131 * @probe_table: Callback to the driver being probed when table
1132 * match is successful
1133 * @probe_subtbl: Callback to the driver being probed when table and
1134 * subtable match (and optional callback is successful)
1135 * @driver_data: Sideband data provided back to the driver
1137 struct acpi_probe_entry {
1138 __u8 id[ACPI_TABLE_ID_LEN];
1140 acpi_probe_entry_validate_subtbl subtable_valid;
1142 acpi_tbl_table_handler probe_table;
1143 acpi_tbl_entry_handler probe_subtbl;
1145 kernel_ulong_t driver_data;
1148 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1149 static const struct acpi_probe_entry __acpi_probe_##name \
1150 __used __section(__##table##_acpi_probe_table) \
1154 .subtable_valid = valid, \
1155 .probe_table = (acpi_tbl_table_handler)fn, \
1156 .driver_data = data, \
1159 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1160 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1162 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1164 #define acpi_probe_device_table(t) \
1166 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1167 ACPI_PROBE_TABLE_END(t); \
1168 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1169 (&ACPI_PROBE_TABLE_END(t) - \
1170 &ACPI_PROBE_TABLE(t))); \
1173 static inline int acpi_dev_get_property(struct acpi_device *adev,
1174 const char *name, acpi_object_type type,
1175 const union acpi_object **obj)
1181 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1182 const char *name, size_t index, size_t num_args,
1183 struct fwnode_reference_args *args)
1189 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1190 const char *name, size_t index,
1191 struct fwnode_reference_args *args)
1196 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1197 const char *propname,
1203 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1204 const char *propname,
1210 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1211 const char *propname,
1212 enum dev_prop_type proptype,
1218 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1219 const char *propname,
1220 enum dev_prop_type proptype,
1221 void *val, size_t nval)
1226 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1227 const char *propname,
1228 enum dev_prop_type proptype,
1229 void *val, size_t nval)
1234 static inline struct fwnode_handle *
1235 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1236 struct fwnode_handle *child)
1241 static inline struct fwnode_handle *
1242 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1247 static inline struct fwnode_handle *
1248 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1249 struct fwnode_handle *prev)
1251 return ERR_PTR(-ENXIO);
1255 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1256 struct fwnode_handle **remote,
1257 struct fwnode_handle **port,
1258 struct fwnode_handle **endpoint)
1263 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1264 static const void * __acpi_table_##name[] \
1265 __attribute__((unused)) \
1266 = { (void *) table_id, \
1267 (void *) subtable, \
1272 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1275 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1276 void acpi_table_upgrade(void);
1278 static inline void acpi_table_upgrade(void) { }
1281 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1282 extern bool acpi_has_watchdog(void);
1284 static inline bool acpi_has_watchdog(void) { return false; }
1287 #ifdef CONFIG_ACPI_SPCR_TABLE
1288 extern bool qdf2400_e44_present;
1289 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1291 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1297 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1298 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1301 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1307 #ifdef CONFIG_ACPI_LPIT
1308 int lpit_read_residency_count_address(u64 *address);
1310 static inline int lpit_read_residency_count_address(u64 *address)
1316 #ifdef CONFIG_ACPI_PPTT
1317 int find_acpi_cpu_topology(unsigned int cpu, int level);
1318 int find_acpi_cpu_topology_package(unsigned int cpu);
1319 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1321 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1325 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1329 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1336 extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1339 acpi_platform_notify(struct device *dev, enum kobject_action action)
1345 #endif /*_LINUX_ACPI_H*/