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))
60 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
61 * the PCI-defined class-code information
63 * @_cls : the class, subclass, prog-if triple for this device
64 * @_msk : the class mask for this device
66 * This macro is used to create a struct acpi_device_id that matches a
67 * specific PCI class. The .id and .driver_data fields will be left
68 * initialized with the default value.
70 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
72 static inline bool has_acpi_companion(struct device *dev)
74 return is_acpi_device_node(dev->fwnode);
77 static inline void acpi_preset_companion(struct device *dev,
78 struct acpi_device *parent, u64 addr)
80 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
83 static inline const char *acpi_dev_name(struct acpi_device *adev)
85 return dev_name(&adev->dev);
88 enum acpi_irq_model_id {
89 ACPI_IRQ_MODEL_PIC = 0,
90 ACPI_IRQ_MODEL_IOAPIC,
91 ACPI_IRQ_MODEL_IOSAPIC,
92 ACPI_IRQ_MODEL_PLATFORM,
97 extern enum acpi_irq_model_id acpi_irq_model;
99 enum acpi_interrupt_id {
100 ACPI_INTERRUPT_PMI = 1,
106 #define ACPI_SPACE_MEM 0
108 enum acpi_address_range_id {
109 ACPI_ADDRESS_RANGE_MEMORY = 1,
110 ACPI_ADDRESS_RANGE_RESERVED = 2,
111 ACPI_ADDRESS_RANGE_ACPI = 3,
112 ACPI_ADDRESS_RANGE_NVS = 4,
113 ACPI_ADDRESS_RANGE_COUNT
119 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
121 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
122 const unsigned long end);
124 /* Debugger support */
126 struct acpi_debugger_ops {
127 int (*create_thread)(acpi_osd_exec_callback function, void *context);
128 ssize_t (*write_log)(const char *msg);
129 ssize_t (*read_cmd)(char *buffer, size_t length);
130 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
131 int (*notify_command_complete)(void);
134 struct acpi_debugger {
135 const struct acpi_debugger_ops *ops;
136 struct module *owner;
140 #ifdef CONFIG_ACPI_DEBUGGER
141 int __init acpi_debugger_init(void);
142 int acpi_register_debugger(struct module *owner,
143 const struct acpi_debugger_ops *ops);
144 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
145 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
146 ssize_t acpi_debugger_write_log(const char *msg);
147 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
148 int acpi_debugger_wait_command_ready(void);
149 int acpi_debugger_notify_command_complete(void);
151 static inline int acpi_debugger_init(void)
156 static inline int acpi_register_debugger(struct module *owner,
157 const struct acpi_debugger_ops *ops)
162 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
166 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
172 static inline int acpi_debugger_write_log(const char *msg)
177 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
182 static inline int acpi_debugger_wait_command_ready(void)
187 static inline int acpi_debugger_notify_command_complete(void)
193 #define BAD_MADT_ENTRY(entry, end) ( \
194 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
195 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
197 struct acpi_subtable_proc {
199 acpi_tbl_entry_handler handler;
203 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
204 void __acpi_unmap_table(char *map, unsigned long size);
205 int early_acpi_boot_init(void);
206 int acpi_boot_init (void);
207 void acpi_boot_table_init (void);
208 int acpi_mps_check (void);
209 int acpi_numa_init (void);
211 int acpi_table_init (void);
212 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
213 int __init acpi_parse_entries(char *id, unsigned long table_size,
214 acpi_tbl_entry_handler handler,
215 struct acpi_table_header *table_header,
216 int entry_id, unsigned int max_entries);
217 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
219 acpi_tbl_entry_handler handler,
220 unsigned int max_entries);
221 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
223 acpi_tbl_entry_handler handler,
224 unsigned int max_entries);
225 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
226 struct acpi_subtable_proc *proc, int proc_num,
227 unsigned int max_entries);
228 int acpi_table_parse_madt(enum acpi_madt_type id,
229 acpi_tbl_entry_handler handler,
230 unsigned int max_entries);
231 int acpi_parse_mcfg (struct acpi_table_header *header);
232 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
234 /* the following numa functions are architecture-dependent */
235 void acpi_numa_slit_init (struct acpi_table_slit *slit);
237 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
238 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
241 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
244 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
247 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
250 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
253 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
255 #ifndef PHYS_CPUID_INVALID
256 typedef u32 phys_cpuid_t;
257 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
260 static inline bool invalid_logical_cpuid(u32 cpuid)
262 return (int)cpuid < 0;
265 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
267 return phys_id == PHYS_CPUID_INVALID;
270 #ifdef CONFIG_ACPI_HOTPLUG_CPU
271 /* Arch dependent functions for cpu hotplug support */
272 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
273 int acpi_unmap_cpu(int cpu);
274 int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid);
275 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
277 void acpi_set_processor_mapping(void);
279 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
280 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
283 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
284 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
285 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
286 void acpi_irq_stats_init(void);
287 extern u32 acpi_irq_handled;
288 extern u32 acpi_irq_not_handled;
289 extern unsigned int acpi_sci_irq;
290 extern bool acpi_no_s5;
291 #define INVALID_ACPI_IRQ ((unsigned)-1)
292 static inline bool acpi_sci_irq_valid(void)
294 return acpi_sci_irq != INVALID_ACPI_IRQ;
298 extern unsigned long acpi_realmode_flags;
300 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
301 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
302 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
304 void acpi_set_irq_model(enum acpi_irq_model_id model,
305 struct fwnode_handle *fwnode);
307 #ifdef CONFIG_X86_IO_APIC
308 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
310 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
313 * This function undoes the effect of one call to acpi_register_gsi().
314 * If this matches the last registration, any IRQ resources for gsi
317 void acpi_unregister_gsi (u32 gsi);
321 int acpi_pci_irq_enable (struct pci_dev *dev);
322 void acpi_penalize_isa_irq(int irq, int active);
323 bool acpi_isa_irq_available(int irq);
324 void acpi_pci_irq_disable (struct pci_dev *dev);
326 extern int ec_read(u8 addr, u8 *val);
327 extern int ec_write(u8 addr, u8 val);
328 extern int ec_transaction(u8 command,
329 const u8 *wdata, unsigned wdata_len,
330 u8 *rdata, unsigned rdata_len);
331 extern acpi_handle ec_get_handle(void);
333 extern bool acpi_is_pnp_device(struct acpi_device *);
335 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
337 typedef void (*wmi_notify_handler) (u32 value, void *context);
339 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
341 const struct acpi_buffer *in,
342 struct acpi_buffer *out);
343 extern acpi_status wmi_query_block(const char *guid, u8 instance,
344 struct acpi_buffer *out);
345 extern acpi_status wmi_set_block(const char *guid, u8 instance,
346 const struct acpi_buffer *in);
347 extern acpi_status wmi_install_notify_handler(const char *guid,
348 wmi_notify_handler handler, void *data);
349 extern acpi_status wmi_remove_notify_handler(const char *guid);
350 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
351 extern bool wmi_has_guid(const char *guid);
353 #endif /* CONFIG_ACPI_WMI */
355 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
356 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
357 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
358 #define ACPI_VIDEO_BACKLIGHT 0x0008
359 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
360 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
361 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
362 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
363 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
364 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
365 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
366 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
368 extern char acpi_video_backlight_string[];
369 extern long acpi_is_video_device(acpi_handle handle);
370 extern int acpi_blacklisted(void);
371 extern void acpi_osi_setup(char *str);
372 extern bool acpi_osi_is_win8(void);
374 #ifdef CONFIG_ACPI_NUMA
375 int acpi_map_pxm_to_online_node(int pxm);
376 int acpi_get_node(acpi_handle handle);
378 static inline int acpi_map_pxm_to_online_node(int pxm)
382 static inline int acpi_get_node(acpi_handle handle)
387 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
389 extern int pnpacpi_disabled;
391 #define PXM_INVAL (-1)
393 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
394 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
395 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
396 struct resource_win *win);
397 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
398 struct resource_win *win);
399 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
400 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
401 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
402 struct resource *res);
404 void acpi_dev_free_resource_list(struct list_head *list);
405 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
406 int (*preproc)(struct acpi_resource *, void *),
408 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
409 unsigned long types);
411 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
414 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
417 int acpi_check_resource_conflict(const struct resource *res);
419 int acpi_check_region(resource_size_t start, resource_size_t n,
422 int acpi_resources_are_enforced(void);
424 #ifdef CONFIG_HIBERNATION
425 void __init acpi_no_s4_hw_signature(void);
428 #ifdef CONFIG_PM_SLEEP
429 void __init acpi_old_suspend_ordering(void);
430 void __init acpi_nvs_nosave(void);
431 void __init acpi_nvs_nosave_s3(void);
432 #endif /* CONFIG_PM_SLEEP */
434 struct acpi_osc_context {
435 char *uuid_str; /* UUID string */
437 struct acpi_buffer cap; /* list of DWORD capabilities */
438 struct acpi_buffer ret; /* free by caller if success */
441 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
442 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
444 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
445 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
446 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
447 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
449 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
450 #define OSC_QUERY_ENABLE 0x00000001 /* input */
451 #define OSC_REQUEST_ERROR 0x00000002 /* return */
452 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
453 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
454 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
456 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
457 #define OSC_SB_PAD_SUPPORT 0x00000001
458 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
459 #define OSC_SB_PR3_SUPPORT 0x00000004
460 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
461 #define OSC_SB_APEI_SUPPORT 0x00000010
462 #define OSC_SB_CPC_SUPPORT 0x00000020
463 #define OSC_SB_CPCV2_SUPPORT 0x00000040
464 #define OSC_SB_PCLPI_SUPPORT 0x00000080
465 #define OSC_SB_OSLPI_SUPPORT 0x00000100
467 extern bool osc_sb_apei_support_acked;
468 extern bool osc_pc_lpi_support_confirmed;
470 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
471 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
472 #define OSC_PCI_ASPM_SUPPORT 0x00000002
473 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
474 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
475 #define OSC_PCI_MSI_SUPPORT 0x00000010
476 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
478 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
479 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
480 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
481 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
482 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
483 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
484 #define OSC_PCI_CONTROL_MASKS 0x0000001f
486 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
487 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
488 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
489 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
490 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
491 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
492 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
493 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
494 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
495 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
497 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
500 /* Enable _OST when all relevant hotplug operations are enabled */
501 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
502 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
503 defined(CONFIG_ACPI_CONTAINER)
504 #define ACPI_HOTPLUG_OST
507 /* _OST Source Event Code (OSPM Action) */
508 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
509 #define ACPI_OST_EC_OSPM_EJECT 0x103
510 #define ACPI_OST_EC_OSPM_INSERTION 0x200
512 /* _OST General Processing Status Code */
513 #define ACPI_OST_SC_SUCCESS 0x0
514 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
515 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
517 /* _OST OS Shutdown Processing (0x100) Status Code */
518 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
519 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
520 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
521 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
523 /* _OST Ejection Request (0x3, 0x103) Status Code */
524 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
525 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
526 #define ACPI_OST_SC_DEVICE_BUSY 0x82
527 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
528 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
530 /* _OST Insertion Request (0x200) Status Code */
531 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
532 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
533 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
535 extern void acpi_early_init(void);
536 extern void acpi_subsystem_init(void);
538 extern int acpi_nvs_register(__u64 start, __u64 size);
540 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
543 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
544 const struct device *dev);
546 extern bool acpi_driver_match_device(struct device *dev,
547 const struct device_driver *drv);
548 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
549 int acpi_device_modalias(struct device *, char *, int);
550 void acpi_walk_dep_device_list(acpi_handle handle);
552 struct platform_device *acpi_create_platform_device(struct acpi_device *);
553 #define ACPI_PTR(_ptr) (_ptr)
555 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
557 adev->flags.visited = true;
560 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
562 adev->flags.visited = false;
565 enum acpi_reconfig_event {
566 ACPI_RECONFIG_DEVICE_ADD = 0,
567 ACPI_RECONFIG_DEVICE_REMOVE,
570 int acpi_reconfig_notifier_register(struct notifier_block *nb);
571 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
573 #else /* !CONFIG_ACPI */
575 #define acpi_disabled 1
577 #define ACPI_COMPANION(dev) (NULL)
578 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
579 #define ACPI_HANDLE(dev) (NULL)
580 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
582 struct fwnode_handle;
584 static inline bool acpi_dev_found(const char *hid)
589 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
594 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
599 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
604 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
609 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
614 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
620 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
625 static inline bool has_acpi_companion(struct device *dev)
630 static inline void acpi_preset_companion(struct device *dev,
631 struct acpi_device *parent, u64 addr)
635 static inline const char *acpi_dev_name(struct acpi_device *adev)
640 static inline void acpi_early_init(void) { }
641 static inline void acpi_subsystem_init(void) { }
643 static inline int early_acpi_boot_init(void)
647 static inline int acpi_boot_init(void)
652 static inline void acpi_boot_table_init(void)
657 static inline int acpi_mps_check(void)
662 static inline int acpi_check_resource_conflict(struct resource *res)
667 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
673 struct acpi_table_header;
674 static inline int acpi_table_parse(char *id,
675 int (*handler)(struct acpi_table_header *))
680 static inline int acpi_nvs_register(__u64 start, __u64 size)
685 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
691 struct acpi_device_id;
693 static inline const struct acpi_device_id *acpi_match_device(
694 const struct acpi_device_id *ids, const struct device *dev)
699 static inline bool acpi_driver_match_device(struct device *dev,
700 const struct device_driver *drv)
705 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
708 union acpi_object *argv4)
713 static inline int acpi_device_uevent_modalias(struct device *dev,
714 struct kobj_uevent_env *env)
719 static inline int acpi_device_modalias(struct device *dev,
725 static inline bool acpi_dma_supported(struct acpi_device *adev)
730 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
732 return DEV_DMA_NOT_SUPPORTED;
735 #define ACPI_PTR(_ptr) (NULL)
737 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
741 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
745 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
750 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
755 #endif /* !CONFIG_ACPI */
757 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
758 int acpi_ioapic_add(acpi_handle root);
760 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
764 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
765 u32 pm1a_ctrl, u32 pm1b_ctrl));
767 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
768 u32 pm1a_control, u32 pm1b_control);
770 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
771 u32 val_a, u32 val_b));
773 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
774 u32 val_a, u32 val_b);
777 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
779 static inline void arch_reserve_mem_area(acpi_physical_address addr,
783 #endif /* CONFIG_X86 */
785 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
788 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
789 int acpi_dev_runtime_suspend(struct device *dev);
790 int acpi_dev_runtime_resume(struct device *dev);
791 int acpi_subsys_runtime_suspend(struct device *dev);
792 int acpi_subsys_runtime_resume(struct device *dev);
793 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
794 int acpi_dev_pm_attach(struct device *dev, bool power_on);
796 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
797 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
798 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
799 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
800 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
804 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
810 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
811 int acpi_dev_suspend_late(struct device *dev);
812 int acpi_dev_resume_early(struct device *dev);
813 int acpi_subsys_prepare(struct device *dev);
814 void acpi_subsys_complete(struct device *dev);
815 int acpi_subsys_suspend_late(struct device *dev);
816 int acpi_subsys_resume_early(struct device *dev);
817 int acpi_subsys_suspend(struct device *dev);
818 int acpi_subsys_freeze(struct device *dev);
820 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
821 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
822 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
823 static inline void acpi_subsys_complete(struct device *dev) {}
824 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
825 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
826 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
827 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
832 void acpi_handle_printk(const char *level, acpi_handle handle,
833 const char *fmt, ...);
834 #else /* !CONFIG_ACPI */
835 static inline __printf(3, 4) void
836 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
837 #endif /* !CONFIG_ACPI */
839 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
841 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
843 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
844 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
848 * acpi_handle_<level>: Print message with ACPI prefix and object path
850 * These interfaces acquire the global namespace mutex to obtain an object
851 * path. In interrupt context, it shows the object path as <n/a>.
853 #define acpi_handle_emerg(handle, fmt, ...) \
854 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
855 #define acpi_handle_alert(handle, fmt, ...) \
856 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
857 #define acpi_handle_crit(handle, fmt, ...) \
858 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
859 #define acpi_handle_err(handle, fmt, ...) \
860 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
861 #define acpi_handle_warn(handle, fmt, ...) \
862 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
863 #define acpi_handle_notice(handle, fmt, ...) \
864 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
865 #define acpi_handle_info(handle, fmt, ...) \
866 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
869 #define acpi_handle_debug(handle, fmt, ...) \
870 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
872 #if defined(CONFIG_DYNAMIC_DEBUG)
873 #define acpi_handle_debug(handle, fmt, ...) \
875 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
876 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
877 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
881 #define acpi_handle_debug(handle, fmt, ...) \
884 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
890 struct acpi_gpio_params {
891 unsigned int crs_entry_index;
892 unsigned int line_index;
896 struct acpi_gpio_mapping {
898 const struct acpi_gpio_params *data;
902 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
903 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
904 const struct acpi_gpio_mapping *gpios);
906 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
909 adev->driver_gpios = NULL;
912 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
914 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
915 const struct acpi_gpio_mapping *gpios)
919 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
921 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
927 /* Device properties */
929 #define MAX_ACPI_REFERENCE_ARGS 8
930 struct acpi_reference_args {
931 struct acpi_device *adev;
933 u64 args[MAX_ACPI_REFERENCE_ARGS];
937 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
938 acpi_object_type type, const union acpi_object **obj);
939 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
940 const char *name, size_t index,
941 struct acpi_reference_args *args);
943 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
945 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
946 enum dev_prop_type proptype, void *val);
947 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
948 enum dev_prop_type proptype, void *val, size_t nval);
949 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
950 enum dev_prop_type proptype, void *val, size_t nval);
952 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
953 struct fwnode_handle *subnode);
955 struct acpi_probe_entry;
956 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
957 struct acpi_probe_entry *);
959 #define ACPI_TABLE_ID_LEN 5
962 * struct acpi_probe_entry - boot-time probing entry
963 * @id: ACPI table name
964 * @type: Optional subtable type to match
965 * (if @id contains subtables)
966 * @subtable_valid: Optional callback to check the validity of
968 * @probe_table: Callback to the driver being probed when table
969 * match is successful
970 * @probe_subtbl: Callback to the driver being probed when table and
971 * subtable match (and optional callback is successful)
972 * @driver_data: Sideband data provided back to the driver
974 struct acpi_probe_entry {
975 __u8 id[ACPI_TABLE_ID_LEN];
977 acpi_probe_entry_validate_subtbl subtable_valid;
979 acpi_tbl_table_handler probe_table;
980 acpi_tbl_entry_handler probe_subtbl;
982 kernel_ulong_t driver_data;
985 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
986 static const struct acpi_probe_entry __acpi_probe_##name \
987 __used __section(__##table##_acpi_probe_table) \
991 .subtable_valid = valid, \
992 .probe_table = (acpi_tbl_table_handler)fn, \
993 .driver_data = data, \
996 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
997 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
999 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1001 #define acpi_probe_device_table(t) \
1003 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1004 ACPI_PROBE_TABLE_END(t); \
1005 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1006 (&ACPI_PROBE_TABLE_END(t) - \
1007 &ACPI_PROBE_TABLE(t))); \
1010 static inline int acpi_dev_get_property(struct acpi_device *adev,
1011 const char *name, acpi_object_type type,
1012 const union acpi_object **obj)
1017 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1018 const char *name, size_t index,
1019 struct acpi_reference_args *args)
1024 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
1025 const char *propname,
1031 static inline int acpi_dev_prop_get(struct acpi_device *adev,
1032 const char *propname,
1038 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
1039 const char *propname,
1040 enum dev_prop_type proptype,
1046 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
1047 const char *propname,
1048 enum dev_prop_type proptype,
1049 void *val, size_t nval)
1054 static inline int acpi_dev_prop_read(struct acpi_device *adev,
1055 const char *propname,
1056 enum dev_prop_type proptype,
1057 void *val, size_t nval)
1062 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
1063 struct fwnode_handle *subnode)
1068 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
1069 static const void * __acpi_table_##name[] \
1070 __attribute__((unused)) \
1071 = { (void *) table_id, \
1072 (void *) subtable, \
1077 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1080 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1081 void acpi_table_upgrade(void);
1083 static inline void acpi_table_upgrade(void) { }
1086 #endif /*_LINUX_ACPI_H*/