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 struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
);
90 enum acpi_irq_model_id
{
91 ACPI_IRQ_MODEL_PIC
= 0,
92 ACPI_IRQ_MODEL_IOAPIC
,
93 ACPI_IRQ_MODEL_IOSAPIC
,
94 ACPI_IRQ_MODEL_PLATFORM
,
99 extern enum acpi_irq_model_id acpi_irq_model
;
101 enum acpi_interrupt_id
{
102 ACPI_INTERRUPT_PMI
= 1,
108 #define ACPI_SPACE_MEM 0
110 enum acpi_address_range_id
{
111 ACPI_ADDRESS_RANGE_MEMORY
= 1,
112 ACPI_ADDRESS_RANGE_RESERVED
= 2,
113 ACPI_ADDRESS_RANGE_ACPI
= 3,
114 ACPI_ADDRESS_RANGE_NVS
= 4,
115 ACPI_ADDRESS_RANGE_COUNT
121 typedef int (*acpi_tbl_table_handler
)(struct acpi_table_header
*table
);
123 typedef int (*acpi_tbl_entry_handler
)(struct acpi_subtable_header
*header
,
124 const unsigned long end
);
126 /* Debugger support */
128 struct acpi_debugger_ops
{
129 int (*create_thread
)(acpi_osd_exec_callback function
, void *context
);
130 ssize_t (*write_log
)(const char *msg
);
131 ssize_t (*read_cmd
)(char *buffer
, size_t length
);
132 int (*wait_command_ready
)(bool single_step
, char *buffer
, size_t length
);
133 int (*notify_command_complete
)(void);
136 struct acpi_debugger
{
137 const struct acpi_debugger_ops
*ops
;
138 struct module
*owner
;
142 #ifdef CONFIG_ACPI_DEBUGGER
143 int __init
acpi_debugger_init(void);
144 int acpi_register_debugger(struct module
*owner
,
145 const struct acpi_debugger_ops
*ops
);
146 void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
);
147 int acpi_debugger_create_thread(acpi_osd_exec_callback function
, void *context
);
148 ssize_t
acpi_debugger_write_log(const char *msg
);
149 ssize_t
acpi_debugger_read_cmd(char *buffer
, size_t buffer_length
);
150 int acpi_debugger_wait_command_ready(void);
151 int acpi_debugger_notify_command_complete(void);
153 static inline int acpi_debugger_init(void)
158 static inline int acpi_register_debugger(struct module
*owner
,
159 const struct acpi_debugger_ops
*ops
)
164 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
)
168 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function
,
174 static inline int acpi_debugger_write_log(const char *msg
)
179 static inline int acpi_debugger_read_cmd(char *buffer
, u32 buffer_length
)
184 static inline int acpi_debugger_wait_command_ready(void)
189 static inline int acpi_debugger_notify_command_complete(void)
195 #define BAD_MADT_ENTRY(entry, end) ( \
196 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
197 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
199 struct acpi_subtable_proc
{
201 acpi_tbl_entry_handler handler
;
205 char * __acpi_map_table (unsigned long phys_addr
, unsigned long size
);
206 void __acpi_unmap_table(char *map
, unsigned long size
);
207 int early_acpi_boot_init(void);
208 int acpi_boot_init (void);
209 void acpi_boot_table_init (void);
210 int acpi_mps_check (void);
211 int acpi_numa_init (void);
213 int acpi_table_init (void);
214 int acpi_table_parse(char *id
, acpi_tbl_table_handler handler
);
215 int __init
acpi_parse_entries(char *id
, unsigned long table_size
,
216 acpi_tbl_entry_handler handler
,
217 struct acpi_table_header
*table_header
,
218 int entry_id
, unsigned int max_entries
);
219 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
221 acpi_tbl_entry_handler handler
,
222 unsigned int max_entries
);
223 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
225 acpi_tbl_entry_handler handler
,
226 unsigned int max_entries
);
227 int __init
acpi_table_parse_entries_array(char *id
, unsigned long table_size
,
228 struct acpi_subtable_proc
*proc
, int proc_num
,
229 unsigned int max_entries
);
230 int acpi_table_parse_madt(enum acpi_madt_type id
,
231 acpi_tbl_entry_handler handler
,
232 unsigned int max_entries
);
233 int acpi_parse_mcfg (struct acpi_table_header
*header
);
234 void acpi_table_print_madt_entry (struct acpi_subtable_header
*madt
);
236 /* the following numa functions are architecture-dependent */
237 void acpi_numa_slit_init (struct acpi_table_slit
*slit
);
239 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
240 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity
*pa
);
243 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity
*pa
) { }
246 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity
*pa
);
249 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
);
252 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
) { }
255 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity
*ma
);
257 #ifndef PHYS_CPUID_INVALID
258 typedef u32 phys_cpuid_t
;
259 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
262 static inline bool invalid_logical_cpuid(u32 cpuid
)
264 return (int)cpuid
< 0;
267 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id
)
269 return phys_id
== PHYS_CPUID_INVALID
;
272 /* Validate the processor object's proc_id */
273 bool acpi_processor_validate_proc_id(int proc_id
);
275 #ifdef CONFIG_ACPI_HOTPLUG_CPU
276 /* Arch dependent functions for cpu hotplug support */
277 int acpi_map_cpu(acpi_handle handle
, phys_cpuid_t physid
, int *pcpu
);
278 int acpi_unmap_cpu(int cpu
);
279 int acpi_map_cpu2node(acpi_handle handle
, int cpu
, int physid
);
280 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
282 void acpi_set_processor_mapping(void);
284 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
285 int acpi_get_ioapic_id(acpi_handle handle
, u32 gsi_base
, u64
*phys_addr
);
288 int acpi_register_ioapic(acpi_handle handle
, u64 phys_addr
, u32 gsi_base
);
289 int acpi_unregister_ioapic(acpi_handle handle
, u32 gsi_base
);
290 int acpi_ioapic_registered(acpi_handle handle
, u32 gsi_base
);
291 void acpi_irq_stats_init(void);
292 extern u32 acpi_irq_handled
;
293 extern u32 acpi_irq_not_handled
;
294 extern unsigned int acpi_sci_irq
;
295 extern bool acpi_no_s5
;
296 #define INVALID_ACPI_IRQ ((unsigned)-1)
297 static inline bool acpi_sci_irq_valid(void)
299 return acpi_sci_irq
!= INVALID_ACPI_IRQ
;
303 extern unsigned long acpi_realmode_flags
;
305 int acpi_register_gsi (struct device
*dev
, u32 gsi
, int triggering
, int polarity
);
306 int acpi_gsi_to_irq (u32 gsi
, unsigned int *irq
);
307 int acpi_isa_irq_to_gsi (unsigned isa_irq
, u32
*gsi
);
309 void acpi_set_irq_model(enum acpi_irq_model_id model
,
310 struct fwnode_handle
*fwnode
);
312 #ifdef CONFIG_X86_IO_APIC
313 extern int acpi_get_override_irq(u32 gsi
, int *trigger
, int *polarity
);
315 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
318 * This function undoes the effect of one call to acpi_register_gsi().
319 * If this matches the last registration, any IRQ resources for gsi
322 void acpi_unregister_gsi (u32 gsi
);
326 int acpi_pci_irq_enable (struct pci_dev
*dev
);
327 void acpi_penalize_isa_irq(int irq
, int active
);
328 bool acpi_isa_irq_available(int irq
);
329 void acpi_penalize_sci_irq(int irq
, int trigger
, int polarity
);
330 void acpi_pci_irq_disable (struct pci_dev
*dev
);
332 extern int ec_read(u8 addr
, u8
*val
);
333 extern int ec_write(u8 addr
, u8 val
);
334 extern int ec_transaction(u8 command
,
335 const u8
*wdata
, unsigned wdata_len
,
336 u8
*rdata
, unsigned rdata_len
);
337 extern acpi_handle
ec_get_handle(void);
339 extern bool acpi_is_pnp_device(struct acpi_device
*);
341 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
343 typedef void (*wmi_notify_handler
) (u32 value
, void *context
);
345 extern acpi_status
wmi_evaluate_method(const char *guid
, u8 instance
,
347 const struct acpi_buffer
*in
,
348 struct acpi_buffer
*out
);
349 extern acpi_status
wmi_query_block(const char *guid
, u8 instance
,
350 struct acpi_buffer
*out
);
351 extern acpi_status
wmi_set_block(const char *guid
, u8 instance
,
352 const struct acpi_buffer
*in
);
353 extern acpi_status
wmi_install_notify_handler(const char *guid
,
354 wmi_notify_handler handler
, void *data
);
355 extern acpi_status
wmi_remove_notify_handler(const char *guid
);
356 extern acpi_status
wmi_get_event_data(u32 event
, struct acpi_buffer
*out
);
357 extern bool wmi_has_guid(const char *guid
);
359 #endif /* CONFIG_ACPI_WMI */
361 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
362 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
363 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
364 #define ACPI_VIDEO_BACKLIGHT 0x0008
365 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
366 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
367 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
368 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
369 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
370 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
371 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
372 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
374 extern char acpi_video_backlight_string
[];
375 extern long acpi_is_video_device(acpi_handle handle
);
376 extern int acpi_blacklisted(void);
377 extern void acpi_osi_setup(char *str
);
378 extern bool acpi_osi_is_win8(void);
380 #ifdef CONFIG_ACPI_NUMA
381 int acpi_map_pxm_to_online_node(int pxm
);
382 int acpi_get_node(acpi_handle handle
);
384 static inline int acpi_map_pxm_to_online_node(int pxm
)
388 static inline int acpi_get_node(acpi_handle handle
)
393 extern int acpi_paddr_to_node(u64 start_addr
, u64 size
);
395 extern int pnpacpi_disabled
;
397 #define PXM_INVAL (-1)
399 bool acpi_dev_resource_memory(struct acpi_resource
*ares
, struct resource
*res
);
400 bool acpi_dev_resource_io(struct acpi_resource
*ares
, struct resource
*res
);
401 bool acpi_dev_resource_address_space(struct acpi_resource
*ares
,
402 struct resource_win
*win
);
403 bool acpi_dev_resource_ext_address_space(struct acpi_resource
*ares
,
404 struct resource_win
*win
);
405 unsigned long acpi_dev_irq_flags(u8 triggering
, u8 polarity
, u8 shareable
);
406 unsigned int acpi_dev_get_irq_type(int triggering
, int polarity
);
407 bool acpi_dev_resource_interrupt(struct acpi_resource
*ares
, int index
,
408 struct resource
*res
);
410 void acpi_dev_free_resource_list(struct list_head
*list
);
411 int acpi_dev_get_resources(struct acpi_device
*adev
, struct list_head
*list
,
412 int (*preproc
)(struct acpi_resource
*, void *),
414 int acpi_dev_filter_resource_type(struct acpi_resource
*ares
,
415 unsigned long types
);
417 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource
*ares
,
420 return acpi_dev_filter_resource_type(ares
, (unsigned long)arg
);
423 int acpi_check_resource_conflict(const struct resource
*res
);
425 int acpi_check_region(resource_size_t start
, resource_size_t n
,
428 int acpi_resources_are_enforced(void);
430 #ifdef CONFIG_HIBERNATION
431 void __init
acpi_no_s4_hw_signature(void);
434 #ifdef CONFIG_PM_SLEEP
435 void __init
acpi_old_suspend_ordering(void);
436 void __init
acpi_nvs_nosave(void);
437 void __init
acpi_nvs_nosave_s3(void);
438 #endif /* CONFIG_PM_SLEEP */
440 struct acpi_osc_context
{
441 char *uuid_str
; /* UUID string */
443 struct acpi_buffer cap
; /* list of DWORD capabilities */
444 struct acpi_buffer ret
; /* free by caller if success */
447 acpi_status
acpi_str_to_uuid(char *str
, u8
*uuid
);
448 acpi_status
acpi_run_osc(acpi_handle handle
, struct acpi_osc_context
*context
);
450 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
451 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
452 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
453 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
455 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
456 #define OSC_QUERY_ENABLE 0x00000001 /* input */
457 #define OSC_REQUEST_ERROR 0x00000002 /* return */
458 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
459 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
460 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
462 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
463 #define OSC_SB_PAD_SUPPORT 0x00000001
464 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
465 #define OSC_SB_PR3_SUPPORT 0x00000004
466 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
467 #define OSC_SB_APEI_SUPPORT 0x00000010
468 #define OSC_SB_CPC_SUPPORT 0x00000020
469 #define OSC_SB_CPCV2_SUPPORT 0x00000040
470 #define OSC_SB_PCLPI_SUPPORT 0x00000080
471 #define OSC_SB_OSLPI_SUPPORT 0x00000100
472 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
474 extern bool osc_sb_apei_support_acked
;
475 extern bool osc_pc_lpi_support_confirmed
;
477 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
478 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
479 #define OSC_PCI_ASPM_SUPPORT 0x00000002
480 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
481 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
482 #define OSC_PCI_MSI_SUPPORT 0x00000010
483 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
485 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
486 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
487 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
488 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
489 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
490 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
491 #define OSC_PCI_CONTROL_MASKS 0x0000001f
493 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
494 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
495 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
496 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
497 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
498 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
499 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
500 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
501 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
502 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
504 extern acpi_status
acpi_pci_osc_control_set(acpi_handle handle
,
507 /* Enable _OST when all relevant hotplug operations are enabled */
508 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
509 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
510 defined(CONFIG_ACPI_CONTAINER)
511 #define ACPI_HOTPLUG_OST
514 /* _OST Source Event Code (OSPM Action) */
515 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
516 #define ACPI_OST_EC_OSPM_EJECT 0x103
517 #define ACPI_OST_EC_OSPM_INSERTION 0x200
519 /* _OST General Processing Status Code */
520 #define ACPI_OST_SC_SUCCESS 0x0
521 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
522 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
524 /* _OST OS Shutdown Processing (0x100) Status Code */
525 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
526 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
527 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
528 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
530 /* _OST Ejection Request (0x3, 0x103) Status Code */
531 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
532 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
533 #define ACPI_OST_SC_DEVICE_BUSY 0x82
534 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
535 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
537 /* _OST Insertion Request (0x200) Status Code */
538 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
539 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
540 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
542 extern void acpi_early_init(void);
543 extern void acpi_subsystem_init(void);
545 extern int acpi_nvs_register(__u64 start
, __u64 size
);
547 extern int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
550 const struct acpi_device_id
*acpi_match_device(const struct acpi_device_id
*ids
,
551 const struct device
*dev
);
553 extern bool acpi_driver_match_device(struct device
*dev
,
554 const struct device_driver
*drv
);
555 int acpi_device_uevent_modalias(struct device
*, struct kobj_uevent_env
*);
556 int acpi_device_modalias(struct device
*, char *, int);
557 void acpi_walk_dep_device_list(acpi_handle handle
);
559 struct platform_device
*acpi_create_platform_device(struct acpi_device
*,
560 struct property_entry
*);
561 #define ACPI_PTR(_ptr) (_ptr)
563 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
565 adev
->flags
.visited
= true;
568 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
570 adev
->flags
.visited
= false;
573 enum acpi_reconfig_event
{
574 ACPI_RECONFIG_DEVICE_ADD
= 0,
575 ACPI_RECONFIG_DEVICE_REMOVE
,
578 int acpi_reconfig_notifier_register(struct notifier_block
*nb
);
579 int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
);
581 #else /* !CONFIG_ACPI */
583 #define acpi_disabled 1
585 #define ACPI_COMPANION(dev) (NULL)
586 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
587 #define ACPI_HANDLE(dev) (NULL)
588 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
590 struct fwnode_handle
;
592 static inline bool acpi_dev_found(const char *hid
)
597 static inline bool is_acpi_node(struct fwnode_handle
*fwnode
)
602 static inline bool is_acpi_device_node(struct fwnode_handle
*fwnode
)
607 static inline struct acpi_device
*to_acpi_device_node(struct fwnode_handle
*fwnode
)
612 static inline bool is_acpi_data_node(struct fwnode_handle
*fwnode
)
617 static inline struct acpi_data_node
*to_acpi_data_node(struct fwnode_handle
*fwnode
)
622 static inline bool acpi_data_node_match(struct fwnode_handle
*fwnode
,
628 static inline struct fwnode_handle
*acpi_fwnode_handle(struct acpi_device
*adev
)
633 static inline bool has_acpi_companion(struct device
*dev
)
638 static inline void acpi_preset_companion(struct device
*dev
,
639 struct acpi_device
*parent
, u64 addr
)
643 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
648 static inline struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
)
653 static inline void acpi_early_init(void) { }
654 static inline void acpi_subsystem_init(void) { }
656 static inline int early_acpi_boot_init(void)
660 static inline int acpi_boot_init(void)
665 static inline void acpi_boot_table_init(void)
670 static inline int acpi_mps_check(void)
675 static inline int acpi_check_resource_conflict(struct resource
*res
)
680 static inline int acpi_check_region(resource_size_t start
, resource_size_t n
,
686 struct acpi_table_header
;
687 static inline int acpi_table_parse(char *id
,
688 int (*handler
)(struct acpi_table_header
*))
693 static inline int acpi_nvs_register(__u64 start
, __u64 size
)
698 static inline int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
704 struct acpi_device_id
;
706 static inline const struct acpi_device_id
*acpi_match_device(
707 const struct acpi_device_id
*ids
, const struct device
*dev
)
712 static inline bool acpi_driver_match_device(struct device
*dev
,
713 const struct device_driver
*drv
)
718 static inline union acpi_object
*acpi_evaluate_dsm(acpi_handle handle
,
721 union acpi_object
*argv4
)
726 static inline int acpi_device_uevent_modalias(struct device
*dev
,
727 struct kobj_uevent_env
*env
)
732 static inline int acpi_device_modalias(struct device
*dev
,
738 static inline bool acpi_dma_supported(struct acpi_device
*adev
)
743 static inline enum dev_dma_attr
acpi_get_dma_attr(struct acpi_device
*adev
)
745 return DEV_DMA_NOT_SUPPORTED
;
748 #define ACPI_PTR(_ptr) (NULL)
750 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
754 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
758 static inline int acpi_reconfig_notifier_register(struct notifier_block
*nb
)
763 static inline int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
)
768 #endif /* !CONFIG_ACPI */
770 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
771 int acpi_ioapic_add(acpi_handle root
);
773 static inline int acpi_ioapic_add(acpi_handle root
) { return 0; }
777 void acpi_os_set_prepare_sleep(int (*func
)(u8 sleep_state
,
778 u32 pm1a_ctrl
, u32 pm1b_ctrl
));
780 acpi_status
acpi_os_prepare_sleep(u8 sleep_state
,
781 u32 pm1a_control
, u32 pm1b_control
);
783 void acpi_os_set_prepare_extended_sleep(int (*func
)(u8 sleep_state
,
784 u32 val_a
, u32 val_b
));
786 acpi_status
acpi_os_prepare_extended_sleep(u8 sleep_state
,
787 u32 val_a
, u32 val_b
);
790 void arch_reserve_mem_area(acpi_physical_address addr
, size_t size
);
792 static inline void arch_reserve_mem_area(acpi_physical_address addr
,
796 #endif /* CONFIG_X86 */
798 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
801 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
802 int acpi_dev_runtime_suspend(struct device
*dev
);
803 int acpi_dev_runtime_resume(struct device
*dev
);
804 int acpi_subsys_runtime_suspend(struct device
*dev
);
805 int acpi_subsys_runtime_resume(struct device
*dev
);
806 struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
);
807 int acpi_dev_pm_attach(struct device
*dev
, bool power_on
);
809 static inline int acpi_dev_runtime_suspend(struct device
*dev
) { return 0; }
810 static inline int acpi_dev_runtime_resume(struct device
*dev
) { return 0; }
811 static inline int acpi_subsys_runtime_suspend(struct device
*dev
) { return 0; }
812 static inline int acpi_subsys_runtime_resume(struct device
*dev
) { return 0; }
813 static inline struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
)
817 static inline int acpi_dev_pm_attach(struct device
*dev
, bool power_on
)
823 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
824 int acpi_dev_suspend_late(struct device
*dev
);
825 int acpi_dev_resume_early(struct device
*dev
);
826 int acpi_subsys_prepare(struct device
*dev
);
827 void acpi_subsys_complete(struct device
*dev
);
828 int acpi_subsys_suspend_late(struct device
*dev
);
829 int acpi_subsys_resume_early(struct device
*dev
);
830 int acpi_subsys_suspend(struct device
*dev
);
831 int acpi_subsys_freeze(struct device
*dev
);
833 static inline int acpi_dev_suspend_late(struct device
*dev
) { return 0; }
834 static inline int acpi_dev_resume_early(struct device
*dev
) { return 0; }
835 static inline int acpi_subsys_prepare(struct device
*dev
) { return 0; }
836 static inline void acpi_subsys_complete(struct device
*dev
) {}
837 static inline int acpi_subsys_suspend_late(struct device
*dev
) { return 0; }
838 static inline int acpi_subsys_resume_early(struct device
*dev
) { return 0; }
839 static inline int acpi_subsys_suspend(struct device
*dev
) { return 0; }
840 static inline int acpi_subsys_freeze(struct device
*dev
) { return 0; }
845 void acpi_handle_printk(const char *level
, acpi_handle handle
,
846 const char *fmt
, ...);
847 #else /* !CONFIG_ACPI */
848 static inline __printf(3, 4) void
849 acpi_handle_printk(const char *level
, void *handle
, const char *fmt
, ...) {}
850 #endif /* !CONFIG_ACPI */
852 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
854 void __acpi_handle_debug(struct _ddebug
*descriptor
, acpi_handle handle
, const char *fmt
, ...);
856 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
857 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
861 * acpi_handle_<level>: Print message with ACPI prefix and object path
863 * These interfaces acquire the global namespace mutex to obtain an object
864 * path. In interrupt context, it shows the object path as <n/a>.
866 #define acpi_handle_emerg(handle, fmt, ...) \
867 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
868 #define acpi_handle_alert(handle, fmt, ...) \
869 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
870 #define acpi_handle_crit(handle, fmt, ...) \
871 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
872 #define acpi_handle_err(handle, fmt, ...) \
873 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
874 #define acpi_handle_warn(handle, fmt, ...) \
875 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
876 #define acpi_handle_notice(handle, fmt, ...) \
877 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
878 #define acpi_handle_info(handle, fmt, ...) \
879 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
882 #define acpi_handle_debug(handle, fmt, ...) \
883 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
885 #if defined(CONFIG_DYNAMIC_DEBUG)
886 #define acpi_handle_debug(handle, fmt, ...) \
888 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
889 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
890 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
894 #define acpi_handle_debug(handle, fmt, ...) \
897 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
903 struct acpi_gpio_params
{
904 unsigned int crs_entry_index
;
905 unsigned int line_index
;
909 struct acpi_gpio_mapping
{
911 const struct acpi_gpio_params
*data
;
915 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
916 int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
917 const struct acpi_gpio_mapping
*gpios
);
919 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
)
922 adev
->driver_gpios
= NULL
;
925 int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
);
927 static inline int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
928 const struct acpi_gpio_mapping
*gpios
)
932 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
) {}
934 static inline int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
)
940 /* Device properties */
942 #define MAX_ACPI_REFERENCE_ARGS 8
943 struct acpi_reference_args
{
944 struct acpi_device
*adev
;
946 u64 args
[MAX_ACPI_REFERENCE_ARGS
];
950 int acpi_dev_get_property(struct acpi_device
*adev
, const char *name
,
951 acpi_object_type type
, const union acpi_object
**obj
);
952 int __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
953 const char *name
, size_t index
, size_t num_args
,
954 struct acpi_reference_args
*args
);
956 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
957 const char *name
, size_t index
,
958 struct acpi_reference_args
*args
)
960 return __acpi_node_get_property_reference(fwnode
, name
, index
,
961 MAX_ACPI_REFERENCE_ARGS
, args
);
964 int acpi_node_prop_get(struct fwnode_handle
*fwnode
, const char *propname
,
966 int acpi_dev_prop_read_single(struct acpi_device
*adev
, const char *propname
,
967 enum dev_prop_type proptype
, void *val
);
968 int acpi_node_prop_read(struct fwnode_handle
*fwnode
, const char *propname
,
969 enum dev_prop_type proptype
, void *val
, size_t nval
);
970 int acpi_dev_prop_read(struct acpi_device
*adev
, const char *propname
,
971 enum dev_prop_type proptype
, void *val
, size_t nval
);
973 struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
974 struct fwnode_handle
*subnode
);
976 struct acpi_probe_entry
;
977 typedef bool (*acpi_probe_entry_validate_subtbl
)(struct acpi_subtable_header
*,
978 struct acpi_probe_entry
*);
980 #define ACPI_TABLE_ID_LEN 5
983 * struct acpi_probe_entry - boot-time probing entry
984 * @id: ACPI table name
985 * @type: Optional subtable type to match
986 * (if @id contains subtables)
987 * @subtable_valid: Optional callback to check the validity of
989 * @probe_table: Callback to the driver being probed when table
990 * match is successful
991 * @probe_subtbl: Callback to the driver being probed when table and
992 * subtable match (and optional callback is successful)
993 * @driver_data: Sideband data provided back to the driver
995 struct acpi_probe_entry
{
996 __u8 id
[ACPI_TABLE_ID_LEN
];
998 acpi_probe_entry_validate_subtbl subtable_valid
;
1000 acpi_tbl_table_handler probe_table
;
1001 acpi_tbl_entry_handler probe_subtbl
;
1003 kernel_ulong_t driver_data
;
1006 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1007 static const struct acpi_probe_entry __acpi_probe_##name \
1008 __used __section(__##table##_acpi_probe_table) \
1012 .subtable_valid = valid, \
1013 .probe_table = (acpi_tbl_table_handler)fn, \
1014 .driver_data = data, \
1017 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1018 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1020 int __acpi_probe_device_table(struct acpi_probe_entry
*start
, int nr
);
1022 #define acpi_probe_device_table(t) \
1024 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1025 ACPI_PROBE_TABLE_END(t); \
1026 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1027 (&ACPI_PROBE_TABLE_END(t) - \
1028 &ACPI_PROBE_TABLE(t))); \
1031 static inline int acpi_dev_get_property(struct acpi_device
*adev
,
1032 const char *name
, acpi_object_type type
,
1033 const union acpi_object
**obj
)
1039 __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1040 const char *name
, size_t index
, size_t num_args
,
1041 struct acpi_reference_args
*args
)
1046 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1047 const char *name
, size_t index
,
1048 struct acpi_reference_args
*args
)
1053 static inline int acpi_node_prop_get(struct fwnode_handle
*fwnode
,
1054 const char *propname
,
1060 static inline int acpi_dev_prop_get(struct acpi_device
*adev
,
1061 const char *propname
,
1067 static inline int acpi_dev_prop_read_single(struct acpi_device
*adev
,
1068 const char *propname
,
1069 enum dev_prop_type proptype
,
1075 static inline int acpi_node_prop_read(struct fwnode_handle
*fwnode
,
1076 const char *propname
,
1077 enum dev_prop_type proptype
,
1078 void *val
, size_t nval
)
1083 static inline int acpi_dev_prop_read(struct acpi_device
*adev
,
1084 const char *propname
,
1085 enum dev_prop_type proptype
,
1086 void *val
, size_t nval
)
1091 static inline struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
1092 struct fwnode_handle
*subnode
)
1097 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1098 static const void * __acpi_table_##name[] \
1099 __attribute__((unused)) \
1100 = { (void *) table_id, \
1101 (void *) subtable, \
1106 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1109 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1110 void acpi_table_upgrade(void);
1112 static inline void acpi_table_upgrade(void) { }
1115 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1116 extern bool acpi_has_watchdog(void);
1118 static inline bool acpi_has_watchdog(void) { return false; }
1121 #ifdef CONFIG_ACPI_SPCR_TABLE
1122 int parse_spcr(bool earlycon
);
1124 static inline int parse_spcr(bool earlycon
) { return 0; }
1127 #endif /*_LINUX_ACPI_H*/