1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * acpi.h - ACPI Interface
11 #include <linux/errno.h>
12 #include <linux/ioport.h> /* for struct resource */
13 #include <linux/resource_ext.h>
14 #include <linux/device.h>
15 #include <linux/property.h>
16 #include <linux/uuid.h>
21 #include <acpi/acpi.h>
25 #include <linux/list.h>
26 #include <linux/mod_devicetable.h>
27 #include <linux/dynamic_debug.h>
28 #include <linux/module.h>
29 #include <linux/mutex.h>
31 #include <acpi/acpi_bus.h>
32 #include <acpi/acpi_drivers.h>
33 #include <acpi/acpi_numa.h>
34 #include <acpi/acpi_io.h>
37 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
39 return adev ? adev->handle : NULL;
42 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
43 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
44 acpi_fwnode_handle(adev) : NULL)
45 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
46 #define ACPI_HANDLE_FWNODE(fwnode) \
47 acpi_device_handle(to_acpi_device_node(fwnode))
49 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
51 struct fwnode_handle *fwnode;
53 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
57 fwnode->ops = &acpi_static_fwnode_ops;
62 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
64 if (WARN_ON(!is_acpi_static_node(fwnode)))
71 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
72 * the PCI-defined class-code information
74 * @_cls : the class, subclass, prog-if triple for this device
75 * @_msk : the class mask for this device
77 * This macro is used to create a struct acpi_device_id that matches a
78 * specific PCI class. The .id and .driver_data fields will be left
79 * initialized with the default value.
81 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
83 static inline bool has_acpi_companion(struct device *dev)
85 return is_acpi_device_node(dev->fwnode);
88 static inline void acpi_preset_companion(struct device *dev,
89 struct acpi_device *parent, u64 addr)
91 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
94 static inline const char *acpi_dev_name(struct acpi_device *adev)
96 return dev_name(&adev->dev);
99 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
101 enum acpi_irq_model_id {
102 ACPI_IRQ_MODEL_PIC = 0,
103 ACPI_IRQ_MODEL_IOAPIC,
104 ACPI_IRQ_MODEL_IOSAPIC,
105 ACPI_IRQ_MODEL_PLATFORM,
110 extern enum acpi_irq_model_id acpi_irq_model;
112 enum acpi_interrupt_id {
113 ACPI_INTERRUPT_PMI = 1,
119 #define ACPI_SPACE_MEM 0
121 enum acpi_address_range_id {
122 ACPI_ADDRESS_RANGE_MEMORY = 1,
123 ACPI_ADDRESS_RANGE_RESERVED = 2,
124 ACPI_ADDRESS_RANGE_ACPI = 3,
125 ACPI_ADDRESS_RANGE_NVS = 4,
126 ACPI_ADDRESS_RANGE_COUNT
131 union acpi_subtable_headers {
132 struct acpi_subtable_header common;
133 struct acpi_hmat_structure hmat;
136 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
138 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
139 const unsigned long end);
141 /* Debugger support */
143 struct acpi_debugger_ops {
144 int (*create_thread)(acpi_osd_exec_callback function, void *context);
145 ssize_t (*write_log)(const char *msg);
146 ssize_t (*read_cmd)(char *buffer, size_t length);
147 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
148 int (*notify_command_complete)(void);
151 struct acpi_debugger {
152 const struct acpi_debugger_ops *ops;
153 struct module *owner;
157 #ifdef CONFIG_ACPI_DEBUGGER
158 int __init acpi_debugger_init(void);
159 int acpi_register_debugger(struct module *owner,
160 const struct acpi_debugger_ops *ops);
161 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
162 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
163 ssize_t acpi_debugger_write_log(const char *msg);
164 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
165 int acpi_debugger_wait_command_ready(void);
166 int acpi_debugger_notify_command_complete(void);
168 static inline int acpi_debugger_init(void)
173 static inline int acpi_register_debugger(struct module *owner,
174 const struct acpi_debugger_ops *ops)
179 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
183 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
189 static inline int acpi_debugger_write_log(const char *msg)
194 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
199 static inline int acpi_debugger_wait_command_ready(void)
204 static inline int acpi_debugger_notify_command_complete(void)
210 #define BAD_MADT_ENTRY(entry, end) ( \
211 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
212 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
214 struct acpi_subtable_proc {
216 acpi_tbl_entry_handler handler;
220 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
221 void __acpi_unmap_table(void __iomem *map, unsigned long size);
222 int early_acpi_boot_init(void);
223 int acpi_boot_init (void);
224 void acpi_boot_table_init (void);
225 int acpi_mps_check (void);
226 int acpi_numa_init (void);
228 int acpi_table_init (void);
229 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
230 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
232 acpi_tbl_entry_handler handler,
233 unsigned int max_entries);
234 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
235 struct acpi_subtable_proc *proc, int proc_num,
236 unsigned int max_entries);
237 int acpi_table_parse_madt(enum acpi_madt_type id,
238 acpi_tbl_entry_handler handler,
239 unsigned int max_entries);
240 int acpi_parse_mcfg (struct acpi_table_header *header);
241 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
243 /* the following numa functions are architecture-dependent */
244 void acpi_numa_slit_init (struct acpi_table_slit *slit);
246 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
247 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
250 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
253 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
256 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
259 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
262 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
264 #ifndef PHYS_CPUID_INVALID
265 typedef u32 phys_cpuid_t;
266 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
269 static inline bool invalid_logical_cpuid(u32 cpuid)
271 return (int)cpuid < 0;
274 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
276 return phys_id == PHYS_CPUID_INVALID;
279 /* Validate the processor object's proc_id */
280 bool acpi_duplicate_processor_id(int proc_id);
282 #ifdef CONFIG_ACPI_HOTPLUG_CPU
283 /* Arch dependent functions for cpu hotplug support */
284 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
286 int acpi_unmap_cpu(int cpu);
287 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
289 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
290 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
293 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
294 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
295 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
296 void acpi_irq_stats_init(void);
297 extern u32 acpi_irq_handled;
298 extern u32 acpi_irq_not_handled;
299 extern unsigned int acpi_sci_irq;
300 extern bool acpi_no_s5;
301 #define INVALID_ACPI_IRQ ((unsigned)-1)
302 static inline bool acpi_sci_irq_valid(void)
304 return acpi_sci_irq != INVALID_ACPI_IRQ;
308 extern unsigned long acpi_realmode_flags;
310 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
311 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
312 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
314 void acpi_set_irq_model(enum acpi_irq_model_id model,
315 struct fwnode_handle *fwnode);
317 #ifdef CONFIG_X86_IO_APIC
318 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
320 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
323 * This function undoes the effect of one call to acpi_register_gsi().
324 * If this matches the last registration, any IRQ resources for gsi
327 void acpi_unregister_gsi (u32 gsi);
331 int acpi_pci_irq_enable (struct pci_dev *dev);
332 void acpi_penalize_isa_irq(int irq, int active);
333 bool acpi_isa_irq_available(int irq);
335 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
337 static inline void acpi_penalize_sci_irq(int irq, int trigger,
342 void acpi_pci_irq_disable (struct pci_dev *dev);
344 extern int ec_read(u8 addr, u8 *val);
345 extern int ec_write(u8 addr, u8 val);
346 extern int ec_transaction(u8 command,
347 const u8 *wdata, unsigned wdata_len,
348 u8 *rdata, unsigned rdata_len);
349 extern acpi_handle ec_get_handle(void);
351 extern bool acpi_is_pnp_device(struct acpi_device *);
353 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
355 typedef void (*wmi_notify_handler) (u32 value, void *context);
357 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
359 const struct acpi_buffer *in,
360 struct acpi_buffer *out);
361 extern acpi_status wmi_query_block(const char *guid, u8 instance,
362 struct acpi_buffer *out);
363 extern acpi_status wmi_set_block(const char *guid, u8 instance,
364 const struct acpi_buffer *in);
365 extern acpi_status wmi_install_notify_handler(const char *guid,
366 wmi_notify_handler handler, void *data);
367 extern acpi_status wmi_remove_notify_handler(const char *guid);
368 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
369 extern bool wmi_has_guid(const char *guid);
371 #endif /* CONFIG_ACPI_WMI */
373 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
374 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
375 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
376 #define ACPI_VIDEO_BACKLIGHT 0x0008
377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
378 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
380 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
381 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
382 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
384 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
386 extern char acpi_video_backlight_string[];
387 extern long acpi_is_video_device(acpi_handle handle);
388 extern int acpi_blacklisted(void);
389 extern void acpi_osi_setup(char *str);
390 extern bool acpi_osi_is_win8(void);
392 #ifdef CONFIG_ACPI_NUMA
393 int acpi_map_pxm_to_online_node(int pxm);
394 int acpi_map_pxm_to_node(int pxm);
395 int acpi_get_node(acpi_handle handle);
397 static inline int acpi_map_pxm_to_online_node(int pxm)
401 static inline int acpi_map_pxm_to_node(int pxm)
405 static inline int acpi_get_node(acpi_handle handle)
410 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
412 extern int pnpacpi_disabled;
414 #define PXM_INVAL (-1)
416 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
417 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
418 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
419 struct resource_win *win);
420 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
421 struct resource_win *win);
422 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
423 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
424 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
425 struct resource *res);
427 void acpi_dev_free_resource_list(struct list_head *list);
428 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
429 int (*preproc)(struct acpi_resource *, void *),
431 int acpi_dev_get_dma_resources(struct acpi_device *adev,
432 struct list_head *list);
433 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
434 unsigned long types);
436 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
439 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
442 struct acpi_device *acpi_resource_consumer(struct resource *res);
444 int acpi_check_resource_conflict(const struct resource *res);
446 int acpi_check_region(resource_size_t start, resource_size_t n,
449 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
452 int acpi_resources_are_enforced(void);
454 #ifdef CONFIG_HIBERNATION
455 void __init acpi_no_s4_hw_signature(void);
458 #ifdef CONFIG_PM_SLEEP
459 void __init acpi_old_suspend_ordering(void);
460 void __init acpi_nvs_nosave(void);
461 void __init acpi_nvs_nosave_s3(void);
462 void __init acpi_sleep_no_blacklist(void);
463 #endif /* CONFIG_PM_SLEEP */
465 struct acpi_osc_context {
466 char *uuid_str; /* UUID string */
468 struct acpi_buffer cap; /* list of DWORD capabilities */
469 struct acpi_buffer ret; /* free by caller if success */
472 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
474 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
475 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
476 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
477 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
479 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
480 #define OSC_QUERY_ENABLE 0x00000001 /* input */
481 #define OSC_REQUEST_ERROR 0x00000002 /* return */
482 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
483 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
484 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
486 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
487 #define OSC_SB_PAD_SUPPORT 0x00000001
488 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
489 #define OSC_SB_PR3_SUPPORT 0x00000004
490 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
491 #define OSC_SB_APEI_SUPPORT 0x00000010
492 #define OSC_SB_CPC_SUPPORT 0x00000020
493 #define OSC_SB_CPCV2_SUPPORT 0x00000040
494 #define OSC_SB_PCLPI_SUPPORT 0x00000080
495 #define OSC_SB_OSLPI_SUPPORT 0x00000100
496 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
498 extern bool osc_sb_apei_support_acked;
499 extern bool osc_pc_lpi_support_confirmed;
501 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
502 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
503 #define OSC_PCI_ASPM_SUPPORT 0x00000002
504 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
505 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
506 #define OSC_PCI_MSI_SUPPORT 0x00000010
507 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
508 #define OSC_PCI_SUPPORT_MASKS 0x0000011f
510 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
511 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
512 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
513 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
514 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
515 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
516 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
517 #define OSC_PCI_CONTROL_MASKS 0x0000003f
519 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
520 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
521 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
522 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
523 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
524 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
525 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
526 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
527 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
528 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
530 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
533 /* Enable _OST when all relevant hotplug operations are enabled */
534 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
535 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
536 defined(CONFIG_ACPI_CONTAINER)
537 #define ACPI_HOTPLUG_OST
540 /* _OST Source Event Code (OSPM Action) */
541 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
542 #define ACPI_OST_EC_OSPM_EJECT 0x103
543 #define ACPI_OST_EC_OSPM_INSERTION 0x200
545 /* _OST General Processing Status Code */
546 #define ACPI_OST_SC_SUCCESS 0x0
547 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
548 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
550 /* _OST OS Shutdown Processing (0x100) Status Code */
551 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
552 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
553 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
554 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
556 /* _OST Ejection Request (0x3, 0x103) Status Code */
557 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
558 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
559 #define ACPI_OST_SC_DEVICE_BUSY 0x82
560 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
561 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
563 /* _OST Insertion Request (0x200) Status Code */
564 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
565 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
566 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
568 enum acpi_predicate {
572 greater_than_or_equal,
575 /* Table must be terminted by a NULL entry */
576 struct acpi_platform_list {
577 char oem_id[ACPI_OEM_ID_SIZE+1];
578 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
581 enum acpi_predicate pred;
585 int acpi_match_platform_list(const struct acpi_platform_list *plat);
587 extern void acpi_early_init(void);
588 extern void acpi_subsystem_init(void);
589 extern void arch_post_acpi_subsys_init(void);
591 extern int acpi_nvs_register(__u64 start, __u64 size);
593 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
596 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
597 const struct device *dev);
599 const void *acpi_device_get_match_data(const struct device *dev);
600 extern bool acpi_driver_match_device(struct device *dev,
601 const struct device_driver *drv);
602 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
603 int acpi_device_modalias(struct device *, char *, int);
604 void acpi_walk_dep_device_list(acpi_handle handle);
606 struct platform_device *acpi_create_platform_device(struct acpi_device *,
607 struct property_entry *);
608 #define ACPI_PTR(_ptr) (_ptr)
610 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
612 adev->flags.visited = true;
615 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
617 adev->flags.visited = false;
620 enum acpi_reconfig_event {
621 ACPI_RECONFIG_DEVICE_ADD = 0,
622 ACPI_RECONFIG_DEVICE_REMOVE,
625 int acpi_reconfig_notifier_register(struct notifier_block *nb);
626 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
628 #ifdef CONFIG_ACPI_GTDT
629 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
630 int acpi_gtdt_map_ppi(int type);
631 bool acpi_gtdt_c3stop(int type);
632 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
635 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
636 static inline u64 acpi_arch_get_root_pointer(void)
642 #else /* !CONFIG_ACPI */
644 #define acpi_disabled 1
646 #define ACPI_COMPANION(dev) (NULL)
647 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
648 #define ACPI_HANDLE(dev) (NULL)
649 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
650 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
652 struct fwnode_handle;
654 static inline bool acpi_dev_found(const char *hid)
659 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
664 static inline struct acpi_device *
665 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
670 static inline void acpi_dev_put(struct acpi_device *adev) {}
672 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
677 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
682 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
687 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
692 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
697 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
703 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
708 static inline bool has_acpi_companion(struct device *dev)
713 static inline void acpi_preset_companion(struct device *dev,
714 struct acpi_device *parent, u64 addr)
718 static inline const char *acpi_dev_name(struct acpi_device *adev)
723 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
728 static inline void acpi_early_init(void) { }
729 static inline void acpi_subsystem_init(void) { }
731 static inline int early_acpi_boot_init(void)
735 static inline int acpi_boot_init(void)
740 static inline void acpi_boot_table_init(void)
745 static inline int acpi_mps_check(void)
750 static inline int acpi_check_resource_conflict(struct resource *res)
755 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
761 struct acpi_table_header;
762 static inline int acpi_table_parse(char *id,
763 int (*handler)(struct acpi_table_header *))
768 static inline int acpi_nvs_register(__u64 start, __u64 size)
773 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
779 struct acpi_device_id;
781 static inline const struct acpi_device_id *acpi_match_device(
782 const struct acpi_device_id *ids, const struct device *dev)
787 static inline const void *acpi_device_get_match_data(const struct device *dev)
792 static inline bool acpi_driver_match_device(struct device *dev,
793 const struct device_driver *drv)
798 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
801 union acpi_object *argv4)
806 static inline int acpi_device_uevent_modalias(struct device *dev,
807 struct kobj_uevent_env *env)
812 static inline int acpi_device_modalias(struct device *dev,
818 static inline bool acpi_dma_supported(struct acpi_device *adev)
823 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
825 return DEV_DMA_NOT_SUPPORTED;
828 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
829 u64 *offset, u64 *size)
834 static inline int acpi_dma_configure(struct device *dev,
835 enum dev_dma_attr attr)
840 #define ACPI_PTR(_ptr) (NULL)
842 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
846 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
850 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
855 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
860 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
865 #endif /* !CONFIG_ACPI */
867 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
868 int acpi_ioapic_add(acpi_handle root);
870 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
874 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
875 u32 pm1a_ctrl, u32 pm1b_ctrl));
877 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
878 u32 pm1a_control, u32 pm1b_control);
880 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
881 u32 val_a, u32 val_b));
883 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
884 u32 val_a, u32 val_b);
887 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
889 static inline void arch_reserve_mem_area(acpi_physical_address addr,
893 #endif /* CONFIG_X86 */
895 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
898 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
899 int acpi_dev_suspend(struct device *dev, bool wakeup);
900 int acpi_dev_resume(struct device *dev);
901 int acpi_subsys_runtime_suspend(struct device *dev);
902 int acpi_subsys_runtime_resume(struct device *dev);
903 int acpi_dev_pm_attach(struct device *dev, bool power_on);
905 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
906 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
907 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
908 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
909 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
915 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
916 int acpi_dev_suspend_late(struct device *dev);
917 int acpi_subsys_prepare(struct device *dev);
918 void acpi_subsys_complete(struct device *dev);
919 int acpi_subsys_suspend_late(struct device *dev);
920 int acpi_subsys_suspend_noirq(struct device *dev);
921 int acpi_subsys_resume_noirq(struct device *dev);
922 int acpi_subsys_resume_early(struct device *dev);
923 int acpi_subsys_suspend(struct device *dev);
924 int acpi_subsys_freeze(struct device *dev);
925 int acpi_subsys_freeze_late(struct device *dev);
926 int acpi_subsys_freeze_noirq(struct device *dev);
927 int acpi_subsys_thaw_noirq(struct device *dev);
929 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
930 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
931 static inline void acpi_subsys_complete(struct device *dev) {}
932 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
933 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
934 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; }
935 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
936 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
937 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
938 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; }
939 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; }
940 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; }
945 void acpi_handle_printk(const char *level, acpi_handle handle,
946 const char *fmt, ...);
947 #else /* !CONFIG_ACPI */
948 static inline __printf(3, 4) void
949 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
950 #endif /* !CONFIG_ACPI */
952 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
954 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
958 * acpi_handle_<level>: Print message with ACPI prefix and object path
960 * These interfaces acquire the global namespace mutex to obtain an object
961 * path. In interrupt context, it shows the object path as <n/a>.
963 #define acpi_handle_emerg(handle, fmt, ...) \
964 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
965 #define acpi_handle_alert(handle, fmt, ...) \
966 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
967 #define acpi_handle_crit(handle, fmt, ...) \
968 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
969 #define acpi_handle_err(handle, fmt, ...) \
970 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
971 #define acpi_handle_warn(handle, fmt, ...) \
972 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
973 #define acpi_handle_notice(handle, fmt, ...) \
974 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
975 #define acpi_handle_info(handle, fmt, ...) \
976 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
979 #define acpi_handle_debug(handle, fmt, ...) \
980 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
982 #if defined(CONFIG_DYNAMIC_DEBUG)
983 #define acpi_handle_debug(handle, fmt, ...) \
984 _dynamic_func_call(fmt, __acpi_handle_debug, \
985 handle, pr_fmt(fmt), ##__VA_ARGS__)
987 #define acpi_handle_debug(handle, fmt, ...) \
990 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
996 struct acpi_gpio_params {
997 unsigned int crs_entry_index;
998 unsigned int line_index;
1002 struct acpi_gpio_mapping {
1004 const struct acpi_gpio_params *data;
1007 /* Ignore IoRestriction field */
1008 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0)
1010 * When ACPI GPIO mapping table is in use the index parameter inside it
1011 * refers to the GPIO resource in _CRS method. That index has no
1012 * distinction of actual type of the resource. When consumer wants to
1013 * get GpioIo type explicitly, this quirk may be used.
1015 #define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1)
1017 unsigned int quirks;
1020 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1021 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1022 const struct acpi_gpio_mapping *gpios);
1024 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
1027 adev->driver_gpios = NULL;
1030 int devm_acpi_dev_add_driver_gpios(struct device *dev,
1031 const struct acpi_gpio_mapping *gpios);
1032 void devm_acpi_dev_remove_driver_gpios(struct device *dev);
1034 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1035 struct acpi_resource_gpio **agpio);
1036 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
1038 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
1039 const struct acpi_gpio_mapping *gpios)
1043 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
1045 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
1046 const struct acpi_gpio_mapping *gpios)
1050 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
1052 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1053 struct acpi_resource_gpio **agpio)
1057 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1063 /* Device properties */
1066 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1067 acpi_object_type type, const union acpi_object **obj);
1068 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1069 const char *name, size_t index, size_t num_args,
1070 struct fwnode_reference_args *args);
1072 static inline int acpi_node_get_property_reference(
1073 const struct fwnode_handle *fwnode,
1074 const char *name, size_t index,
1075 struct fwnode_reference_args *args)
1077 return __acpi_node_get_property_reference(fwnode, name, index,
1078 NR_FWNODE_REFERENCE_ARGS, args);
1081 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1083 return !list_empty(&adev->data.properties);
1086 struct acpi_device_properties *
1087 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1088 const union acpi_object *properties);
1090 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1092 int acpi_dev_prop_read_single(struct acpi_device *adev,
1093 const char *propname, enum dev_prop_type proptype,
1095 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1096 const char *propname, enum dev_prop_type proptype,
1097 void *val, size_t nval);
1098 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1099 enum dev_prop_type proptype, void *val, size_t nval);
1101 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1102 struct fwnode_handle *child);
1103 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1105 struct acpi_probe_entry;
1106 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1107 struct acpi_probe_entry *);
1109 #define ACPI_TABLE_ID_LEN 5
1112 * struct acpi_probe_entry - boot-time probing entry
1113 * @id: ACPI table name
1114 * @type: Optional subtable type to match
1115 * (if @id contains subtables)
1116 * @subtable_valid: Optional callback to check the validity of
1118 * @probe_table: Callback to the driver being probed when table
1119 * match is successful
1120 * @probe_subtbl: Callback to the driver being probed when table and
1121 * subtable match (and optional callback is successful)
1122 * @driver_data: Sideband data provided back to the driver
1124 struct acpi_probe_entry {
1125 __u8 id[ACPI_TABLE_ID_LEN];
1127 acpi_probe_entry_validate_subtbl subtable_valid;
1129 acpi_tbl_table_handler probe_table;
1130 acpi_tbl_entry_handler probe_subtbl;
1132 kernel_ulong_t driver_data;
1135 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1136 static const struct acpi_probe_entry __acpi_probe_##name \
1137 __used __section(__##table##_acpi_probe_table) \
1141 .subtable_valid = valid, \
1142 .probe_table = (acpi_tbl_table_handler)fn, \
1143 .driver_data = data, \
1146 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1147 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1149 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1151 #define acpi_probe_device_table(t) \
1153 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1154 ACPI_PROBE_TABLE_END(t); \
1155 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1156 (&ACPI_PROBE_TABLE_END(t) - \
1157 &ACPI_PROBE_TABLE(t))); \
1160 static inline int acpi_dev_get_property(struct acpi_device *adev,
1161 const char *name, acpi_object_type type,
1162 const union acpi_object **obj)
1168 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1169 const char *name, size_t index, size_t num_args,
1170 struct fwnode_reference_args *args)
1176 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1177 const char *name, size_t index,
1178 struct fwnode_reference_args *args)
1183 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1184 const char *propname,
1190 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1191 const char *propname,
1197 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1198 const char *propname,
1199 enum dev_prop_type proptype,
1205 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1206 const char *propname,
1207 enum dev_prop_type proptype,
1208 void *val, size_t nval)
1213 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1214 const char *propname,
1215 enum dev_prop_type proptype,
1216 void *val, size_t nval)
1221 static inline struct fwnode_handle *
1222 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1223 struct fwnode_handle *child)
1228 static inline struct fwnode_handle *
1229 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1234 static inline struct fwnode_handle *
1235 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1236 struct fwnode_handle *prev)
1238 return ERR_PTR(-ENXIO);
1242 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1243 struct fwnode_handle **remote,
1244 struct fwnode_handle **port,
1245 struct fwnode_handle **endpoint)
1250 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1251 static const void * __acpi_table_##name[] \
1252 __attribute__((unused)) \
1253 = { (void *) table_id, \
1254 (void *) subtable, \
1259 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1262 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1263 void acpi_table_upgrade(void);
1265 static inline void acpi_table_upgrade(void) { }
1268 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1269 extern bool acpi_has_watchdog(void);
1271 static inline bool acpi_has_watchdog(void) { return false; }
1274 #ifdef CONFIG_ACPI_SPCR_TABLE
1275 extern bool qdf2400_e44_present;
1276 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1278 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1284 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1285 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1288 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1294 #ifdef CONFIG_ACPI_LPIT
1295 int lpit_read_residency_count_address(u64 *address);
1297 static inline int lpit_read_residency_count_address(u64 *address)
1303 #ifdef CONFIG_ACPI_PPTT
1304 int find_acpi_cpu_topology(unsigned int cpu, int level);
1305 int find_acpi_cpu_topology_package(unsigned int cpu);
1306 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1308 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1312 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1316 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1323 extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1326 acpi_platform_notify(struct device *dev, enum kobject_action action)
1332 #endif /*_LINUX_ACPI_H*/