2 * acpi.h - ACPI Interface
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 #include <linux/errno.h>
25 #include <linux/ioport.h> /* for struct resource */
26 #include <linux/resource_ext.h>
27 #include <linux/device.h>
28 #include <linux/property.h>
33 #include <acpi/acpi.h>
37 #include <linux/list.h>
38 #include <linux/mod_devicetable.h>
39 #include <linux/dynamic_debug.h>
40 #include <linux/module.h>
41 #include <linux/mutex.h>
43 #include <acpi/acpi_bus.h>
44 #include <acpi/acpi_drivers.h>
45 #include <acpi/acpi_numa.h>
46 #include <acpi/acpi_io.h>
49 static inline acpi_handle
acpi_device_handle(struct acpi_device
*adev
)
51 return adev
? adev
->handle
: NULL
;
54 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
55 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
56 acpi_fwnode_handle(adev) : NULL)
57 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
59 static inline struct fwnode_handle
*acpi_alloc_fwnode_static(void)
61 struct fwnode_handle
*fwnode
;
63 fwnode
= kzalloc(sizeof(struct fwnode_handle
), GFP_KERNEL
);
67 fwnode
->type
= FWNODE_ACPI_STATIC
;
72 static inline void acpi_free_fwnode_static(struct fwnode_handle
*fwnode
)
74 if (WARN_ON(!fwnode
|| fwnode
->type
!= FWNODE_ACPI_STATIC
))
81 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
82 * the PCI-defined class-code information
84 * @_cls : the class, subclass, prog-if triple for this device
85 * @_msk : the class mask for this device
87 * This macro is used to create a struct acpi_device_id that matches a
88 * specific PCI class. The .id and .driver_data fields will be left
89 * initialized with the default value.
91 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
93 static inline bool has_acpi_companion(struct device
*dev
)
95 return is_acpi_device_node(dev
->fwnode
);
98 static inline void acpi_preset_companion(struct device
*dev
,
99 struct acpi_device
*parent
, u64 addr
)
101 ACPI_COMPANION_SET(dev
, acpi_find_child_device(parent
, addr
, NULL
));
104 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
106 return dev_name(&adev
->dev
);
109 struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
);
111 enum acpi_irq_model_id
{
112 ACPI_IRQ_MODEL_PIC
= 0,
113 ACPI_IRQ_MODEL_IOAPIC
,
114 ACPI_IRQ_MODEL_IOSAPIC
,
115 ACPI_IRQ_MODEL_PLATFORM
,
120 extern enum acpi_irq_model_id acpi_irq_model
;
122 enum acpi_interrupt_id
{
123 ACPI_INTERRUPT_PMI
= 1,
129 #define ACPI_SPACE_MEM 0
131 enum acpi_address_range_id
{
132 ACPI_ADDRESS_RANGE_MEMORY
= 1,
133 ACPI_ADDRESS_RANGE_RESERVED
= 2,
134 ACPI_ADDRESS_RANGE_ACPI
= 3,
135 ACPI_ADDRESS_RANGE_NVS
= 4,
136 ACPI_ADDRESS_RANGE_COUNT
142 typedef int (*acpi_tbl_table_handler
)(struct acpi_table_header
*table
);
144 typedef int (*acpi_tbl_entry_handler
)(struct acpi_subtable_header
*header
,
145 const unsigned long end
);
147 /* Debugger support */
149 struct acpi_debugger_ops
{
150 int (*create_thread
)(acpi_osd_exec_callback function
, void *context
);
151 ssize_t (*write_log
)(const char *msg
);
152 ssize_t (*read_cmd
)(char *buffer
, size_t length
);
153 int (*wait_command_ready
)(bool single_step
, char *buffer
, size_t length
);
154 int (*notify_command_complete
)(void);
157 struct acpi_debugger
{
158 const struct acpi_debugger_ops
*ops
;
159 struct module
*owner
;
163 #ifdef CONFIG_ACPI_DEBUGGER
164 int __init
acpi_debugger_init(void);
165 int acpi_register_debugger(struct module
*owner
,
166 const struct acpi_debugger_ops
*ops
);
167 void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
);
168 int acpi_debugger_create_thread(acpi_osd_exec_callback function
, void *context
);
169 ssize_t
acpi_debugger_write_log(const char *msg
);
170 ssize_t
acpi_debugger_read_cmd(char *buffer
, size_t buffer_length
);
171 int acpi_debugger_wait_command_ready(void);
172 int acpi_debugger_notify_command_complete(void);
174 static inline int acpi_debugger_init(void)
179 static inline int acpi_register_debugger(struct module
*owner
,
180 const struct acpi_debugger_ops
*ops
)
185 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
)
189 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function
,
195 static inline int acpi_debugger_write_log(const char *msg
)
200 static inline int acpi_debugger_read_cmd(char *buffer
, u32 buffer_length
)
205 static inline int acpi_debugger_wait_command_ready(void)
210 static inline int acpi_debugger_notify_command_complete(void)
216 #define BAD_MADT_ENTRY(entry, end) ( \
217 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
218 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220 struct acpi_subtable_proc
{
222 acpi_tbl_entry_handler handler
;
226 char * __acpi_map_table (unsigned long phys_addr
, unsigned long size
);
227 void __acpi_unmap_table(char *map
, unsigned long size
);
228 int early_acpi_boot_init(void);
229 int acpi_boot_init (void);
230 void acpi_boot_table_init (void);
231 int acpi_mps_check (void);
232 int acpi_numa_init (void);
234 int acpi_table_init (void);
235 int acpi_table_parse(char *id
, acpi_tbl_table_handler handler
);
236 int __init
acpi_parse_entries(char *id
, unsigned long table_size
,
237 acpi_tbl_entry_handler handler
,
238 struct acpi_table_header
*table_header
,
239 int entry_id
, unsigned int max_entries
);
240 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
242 acpi_tbl_entry_handler handler
,
243 unsigned int max_entries
);
244 int __init
acpi_table_parse_entries_array(char *id
, unsigned long table_size
,
245 struct acpi_subtable_proc
*proc
, int proc_num
,
246 unsigned int max_entries
);
247 int acpi_table_parse_madt(enum acpi_madt_type id
,
248 acpi_tbl_entry_handler handler
,
249 unsigned int max_entries
);
250 int acpi_parse_mcfg (struct acpi_table_header
*header
);
251 void acpi_table_print_madt_entry (struct acpi_subtable_header
*madt
);
253 /* the following numa functions are architecture-dependent */
254 void acpi_numa_slit_init (struct acpi_table_slit
*slit
);
256 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
257 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity
*pa
);
260 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity
*pa
) { }
263 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity
*pa
);
266 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
);
269 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
) { }
272 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity
*ma
);
274 #ifndef PHYS_CPUID_INVALID
275 typedef u32 phys_cpuid_t
;
276 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
279 static inline bool invalid_logical_cpuid(u32 cpuid
)
281 return (int)cpuid
< 0;
284 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id
)
286 return phys_id
== PHYS_CPUID_INVALID
;
289 /* Validate the processor object's proc_id */
290 bool acpi_duplicate_processor_id(int proc_id
);
292 #ifdef CONFIG_ACPI_HOTPLUG_CPU
293 /* Arch dependent functions for cpu hotplug support */
294 int acpi_map_cpu(acpi_handle handle
, phys_cpuid_t physid
, u32 acpi_id
,
296 int acpi_unmap_cpu(int cpu
);
297 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
299 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
300 int acpi_get_ioapic_id(acpi_handle handle
, u32 gsi_base
, u64
*phys_addr
);
303 int acpi_register_ioapic(acpi_handle handle
, u64 phys_addr
, u32 gsi_base
);
304 int acpi_unregister_ioapic(acpi_handle handle
, u32 gsi_base
);
305 int acpi_ioapic_registered(acpi_handle handle
, u32 gsi_base
);
306 void acpi_irq_stats_init(void);
307 extern u32 acpi_irq_handled
;
308 extern u32 acpi_irq_not_handled
;
309 extern unsigned int acpi_sci_irq
;
310 extern bool acpi_no_s5
;
311 #define INVALID_ACPI_IRQ ((unsigned)-1)
312 static inline bool acpi_sci_irq_valid(void)
314 return acpi_sci_irq
!= INVALID_ACPI_IRQ
;
318 extern unsigned long acpi_realmode_flags
;
320 int acpi_register_gsi (struct device
*dev
, u32 gsi
, int triggering
, int polarity
);
321 int acpi_gsi_to_irq (u32 gsi
, unsigned int *irq
);
322 int acpi_isa_irq_to_gsi (unsigned isa_irq
, u32
*gsi
);
324 void acpi_set_irq_model(enum acpi_irq_model_id model
,
325 struct fwnode_handle
*fwnode
);
327 #ifdef CONFIG_X86_IO_APIC
328 extern int acpi_get_override_irq(u32 gsi
, int *trigger
, int *polarity
);
330 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
333 * This function undoes the effect of one call to acpi_register_gsi().
334 * If this matches the last registration, any IRQ resources for gsi
337 void acpi_unregister_gsi (u32 gsi
);
341 int acpi_pci_irq_enable (struct pci_dev
*dev
);
342 void acpi_penalize_isa_irq(int irq
, int active
);
343 bool acpi_isa_irq_available(int irq
);
344 void acpi_penalize_sci_irq(int irq
, int trigger
, int polarity
);
345 void acpi_pci_irq_disable (struct pci_dev
*dev
);
347 extern int ec_read(u8 addr
, u8
*val
);
348 extern int ec_write(u8 addr
, u8 val
);
349 extern int ec_transaction(u8 command
,
350 const u8
*wdata
, unsigned wdata_len
,
351 u8
*rdata
, unsigned rdata_len
);
352 extern acpi_handle
ec_get_handle(void);
354 extern bool acpi_is_pnp_device(struct acpi_device
*);
356 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
358 typedef void (*wmi_notify_handler
) (u32 value
, void *context
);
360 extern acpi_status
wmi_evaluate_method(const char *guid
, u8 instance
,
362 const struct acpi_buffer
*in
,
363 struct acpi_buffer
*out
);
364 extern acpi_status
wmi_query_block(const char *guid
, u8 instance
,
365 struct acpi_buffer
*out
);
366 extern acpi_status
wmi_set_block(const char *guid
, u8 instance
,
367 const struct acpi_buffer
*in
);
368 extern acpi_status
wmi_install_notify_handler(const char *guid
,
369 wmi_notify_handler handler
, void *data
);
370 extern acpi_status
wmi_remove_notify_handler(const char *guid
);
371 extern acpi_status
wmi_get_event_data(u32 event
, struct acpi_buffer
*out
);
372 extern bool wmi_has_guid(const char *guid
);
374 #endif /* CONFIG_ACPI_WMI */
376 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
377 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
378 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
379 #define ACPI_VIDEO_BACKLIGHT 0x0008
380 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
381 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
382 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
384 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
385 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
386 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
387 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
389 extern char acpi_video_backlight_string
[];
390 extern long acpi_is_video_device(acpi_handle handle
);
391 extern int acpi_blacklisted(void);
392 extern void acpi_osi_setup(char *str
);
393 extern bool acpi_osi_is_win8(void);
395 #ifdef CONFIG_ACPI_NUMA
396 int acpi_map_pxm_to_online_node(int pxm
);
397 int acpi_get_node(acpi_handle handle
);
399 static inline int acpi_map_pxm_to_online_node(int pxm
)
403 static inline int acpi_get_node(acpi_handle handle
)
408 extern int acpi_paddr_to_node(u64 start_addr
, u64 size
);
410 extern int pnpacpi_disabled
;
412 #define PXM_INVAL (-1)
414 bool acpi_dev_resource_memory(struct acpi_resource
*ares
, struct resource
*res
);
415 bool acpi_dev_resource_io(struct acpi_resource
*ares
, struct resource
*res
);
416 bool acpi_dev_resource_address_space(struct acpi_resource
*ares
,
417 struct resource_win
*win
);
418 bool acpi_dev_resource_ext_address_space(struct acpi_resource
*ares
,
419 struct resource_win
*win
);
420 unsigned long acpi_dev_irq_flags(u8 triggering
, u8 polarity
, u8 shareable
);
421 unsigned int acpi_dev_get_irq_type(int triggering
, int polarity
);
422 bool acpi_dev_resource_interrupt(struct acpi_resource
*ares
, int index
,
423 struct resource
*res
);
425 void acpi_dev_free_resource_list(struct list_head
*list
);
426 int acpi_dev_get_resources(struct acpi_device
*adev
, struct list_head
*list
,
427 int (*preproc
)(struct acpi_resource
*, void *),
429 int acpi_dev_filter_resource_type(struct acpi_resource
*ares
,
430 unsigned long types
);
432 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource
*ares
,
435 return acpi_dev_filter_resource_type(ares
, (unsigned long)arg
);
438 struct acpi_device
*acpi_resource_consumer(struct resource
*res
);
440 int acpi_check_resource_conflict(const struct resource
*res
);
442 int acpi_check_region(resource_size_t start
, resource_size_t n
,
445 int acpi_resources_are_enforced(void);
447 #ifdef CONFIG_HIBERNATION
448 void __init
acpi_no_s4_hw_signature(void);
451 #ifdef CONFIG_PM_SLEEP
452 void __init
acpi_old_suspend_ordering(void);
453 void __init
acpi_nvs_nosave(void);
454 void __init
acpi_nvs_nosave_s3(void);
455 #endif /* CONFIG_PM_SLEEP */
457 struct acpi_osc_context
{
458 char *uuid_str
; /* UUID string */
460 struct acpi_buffer cap
; /* list of DWORD capabilities */
461 struct acpi_buffer ret
; /* free by caller if success */
464 acpi_status
acpi_str_to_uuid(char *str
, u8
*uuid
);
465 acpi_status
acpi_run_osc(acpi_handle handle
, struct acpi_osc_context
*context
);
467 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
468 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
469 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
470 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
472 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
473 #define OSC_QUERY_ENABLE 0x00000001 /* input */
474 #define OSC_REQUEST_ERROR 0x00000002 /* return */
475 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
476 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
477 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
479 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
480 #define OSC_SB_PAD_SUPPORT 0x00000001
481 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
482 #define OSC_SB_PR3_SUPPORT 0x00000004
483 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
484 #define OSC_SB_APEI_SUPPORT 0x00000010
485 #define OSC_SB_CPC_SUPPORT 0x00000020
486 #define OSC_SB_CPCV2_SUPPORT 0x00000040
487 #define OSC_SB_PCLPI_SUPPORT 0x00000080
488 #define OSC_SB_OSLPI_SUPPORT 0x00000100
489 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
491 extern bool osc_sb_apei_support_acked
;
492 extern bool osc_pc_lpi_support_confirmed
;
494 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
495 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
496 #define OSC_PCI_ASPM_SUPPORT 0x00000002
497 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
498 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
499 #define OSC_PCI_MSI_SUPPORT 0x00000010
500 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
502 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
503 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
504 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
505 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
506 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
507 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
508 #define OSC_PCI_CONTROL_MASKS 0x0000001f
510 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
511 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
512 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
513 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
514 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
515 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
516 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
517 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
518 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
519 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
521 extern acpi_status
acpi_pci_osc_control_set(acpi_handle handle
,
524 /* Enable _OST when all relevant hotplug operations are enabled */
525 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
526 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
527 defined(CONFIG_ACPI_CONTAINER)
528 #define ACPI_HOTPLUG_OST
531 /* _OST Source Event Code (OSPM Action) */
532 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
533 #define ACPI_OST_EC_OSPM_EJECT 0x103
534 #define ACPI_OST_EC_OSPM_INSERTION 0x200
536 /* _OST General Processing Status Code */
537 #define ACPI_OST_SC_SUCCESS 0x0
538 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
539 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
541 /* _OST OS Shutdown Processing (0x100) Status Code */
542 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
543 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
544 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
545 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
547 /* _OST Ejection Request (0x3, 0x103) Status Code */
548 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
549 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
550 #define ACPI_OST_SC_DEVICE_BUSY 0x82
551 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
552 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
554 /* _OST Insertion Request (0x200) Status Code */
555 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
556 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
557 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
559 extern void acpi_early_init(void);
560 extern void acpi_subsystem_init(void);
562 extern int acpi_nvs_register(__u64 start
, __u64 size
);
564 extern int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
567 const struct acpi_device_id
*acpi_match_device(const struct acpi_device_id
*ids
,
568 const struct device
*dev
);
570 extern bool acpi_driver_match_device(struct device
*dev
,
571 const struct device_driver
*drv
);
572 int acpi_device_uevent_modalias(struct device
*, struct kobj_uevent_env
*);
573 int acpi_device_modalias(struct device
*, char *, int);
574 void acpi_walk_dep_device_list(acpi_handle handle
);
576 struct platform_device
*acpi_create_platform_device(struct acpi_device
*,
577 struct property_entry
*);
578 #define ACPI_PTR(_ptr) (_ptr)
580 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
582 adev
->flags
.visited
= true;
585 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
587 adev
->flags
.visited
= false;
590 enum acpi_reconfig_event
{
591 ACPI_RECONFIG_DEVICE_ADD
= 0,
592 ACPI_RECONFIG_DEVICE_REMOVE
,
595 int acpi_reconfig_notifier_register(struct notifier_block
*nb
);
596 int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
);
598 #else /* !CONFIG_ACPI */
600 #define acpi_disabled 1
602 #define ACPI_COMPANION(dev) (NULL)
603 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
604 #define ACPI_HANDLE(dev) (NULL)
605 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
607 struct fwnode_handle
;
609 static inline bool acpi_dev_found(const char *hid
)
614 static inline bool is_acpi_node(struct fwnode_handle
*fwnode
)
619 static inline bool is_acpi_device_node(struct fwnode_handle
*fwnode
)
624 static inline struct acpi_device
*to_acpi_device_node(struct fwnode_handle
*fwnode
)
629 static inline bool is_acpi_data_node(struct fwnode_handle
*fwnode
)
634 static inline struct acpi_data_node
*to_acpi_data_node(struct fwnode_handle
*fwnode
)
639 static inline bool acpi_data_node_match(struct fwnode_handle
*fwnode
,
645 static inline struct fwnode_handle
*acpi_fwnode_handle(struct acpi_device
*adev
)
650 static inline bool has_acpi_companion(struct device
*dev
)
655 static inline void acpi_preset_companion(struct device
*dev
,
656 struct acpi_device
*parent
, u64 addr
)
660 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
665 static inline struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
)
670 static inline void acpi_early_init(void) { }
671 static inline void acpi_subsystem_init(void) { }
673 static inline int early_acpi_boot_init(void)
677 static inline int acpi_boot_init(void)
682 static inline void acpi_boot_table_init(void)
687 static inline int acpi_mps_check(void)
692 static inline int acpi_check_resource_conflict(struct resource
*res
)
697 static inline int acpi_check_region(resource_size_t start
, resource_size_t n
,
703 struct acpi_table_header
;
704 static inline int acpi_table_parse(char *id
,
705 int (*handler
)(struct acpi_table_header
*))
710 static inline int acpi_nvs_register(__u64 start
, __u64 size
)
715 static inline int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
721 struct acpi_device_id
;
723 static inline const struct acpi_device_id
*acpi_match_device(
724 const struct acpi_device_id
*ids
, const struct device
*dev
)
729 static inline bool acpi_driver_match_device(struct device
*dev
,
730 const struct device_driver
*drv
)
735 static inline union acpi_object
*acpi_evaluate_dsm(acpi_handle handle
,
738 union acpi_object
*argv4
)
743 static inline int acpi_device_uevent_modalias(struct device
*dev
,
744 struct kobj_uevent_env
*env
)
749 static inline int acpi_device_modalias(struct device
*dev
,
755 static inline bool acpi_dma_supported(struct acpi_device
*adev
)
760 static inline enum dev_dma_attr
acpi_get_dma_attr(struct acpi_device
*adev
)
762 return DEV_DMA_NOT_SUPPORTED
;
765 static inline void acpi_dma_configure(struct device
*dev
,
766 enum dev_dma_attr attr
) { }
768 static inline void acpi_dma_deconfigure(struct device
*dev
) { }
770 #define ACPI_PTR(_ptr) (NULL)
772 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
776 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
780 static inline int acpi_reconfig_notifier_register(struct notifier_block
*nb
)
785 static inline int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
)
790 static inline struct acpi_device
*acpi_resource_consumer(struct resource
*res
)
795 #endif /* !CONFIG_ACPI */
797 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
798 int acpi_ioapic_add(acpi_handle root
);
800 static inline int acpi_ioapic_add(acpi_handle root
) { return 0; }
804 void acpi_os_set_prepare_sleep(int (*func
)(u8 sleep_state
,
805 u32 pm1a_ctrl
, u32 pm1b_ctrl
));
807 acpi_status
acpi_os_prepare_sleep(u8 sleep_state
,
808 u32 pm1a_control
, u32 pm1b_control
);
810 void acpi_os_set_prepare_extended_sleep(int (*func
)(u8 sleep_state
,
811 u32 val_a
, u32 val_b
));
813 acpi_status
acpi_os_prepare_extended_sleep(u8 sleep_state
,
814 u32 val_a
, u32 val_b
);
817 void arch_reserve_mem_area(acpi_physical_address addr
, size_t size
);
819 static inline void arch_reserve_mem_area(acpi_physical_address addr
,
823 #endif /* CONFIG_X86 */
825 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
828 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
829 int acpi_dev_runtime_suspend(struct device
*dev
);
830 int acpi_dev_runtime_resume(struct device
*dev
);
831 int acpi_subsys_runtime_suspend(struct device
*dev
);
832 int acpi_subsys_runtime_resume(struct device
*dev
);
833 struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
);
834 int acpi_dev_pm_attach(struct device
*dev
, bool power_on
);
836 static inline int acpi_dev_runtime_suspend(struct device
*dev
) { return 0; }
837 static inline int acpi_dev_runtime_resume(struct device
*dev
) { return 0; }
838 static inline int acpi_subsys_runtime_suspend(struct device
*dev
) { return 0; }
839 static inline int acpi_subsys_runtime_resume(struct device
*dev
) { return 0; }
840 static inline struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
)
844 static inline int acpi_dev_pm_attach(struct device
*dev
, bool power_on
)
850 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
851 int acpi_dev_suspend_late(struct device
*dev
);
852 int acpi_dev_resume_early(struct device
*dev
);
853 int acpi_subsys_prepare(struct device
*dev
);
854 void acpi_subsys_complete(struct device
*dev
);
855 int acpi_subsys_suspend_late(struct device
*dev
);
856 int acpi_subsys_resume_early(struct device
*dev
);
857 int acpi_subsys_suspend(struct device
*dev
);
858 int acpi_subsys_freeze(struct device
*dev
);
860 static inline int acpi_dev_suspend_late(struct device
*dev
) { return 0; }
861 static inline int acpi_dev_resume_early(struct device
*dev
) { return 0; }
862 static inline int acpi_subsys_prepare(struct device
*dev
) { return 0; }
863 static inline void acpi_subsys_complete(struct device
*dev
) {}
864 static inline int acpi_subsys_suspend_late(struct device
*dev
) { return 0; }
865 static inline int acpi_subsys_resume_early(struct device
*dev
) { return 0; }
866 static inline int acpi_subsys_suspend(struct device
*dev
) { return 0; }
867 static inline int acpi_subsys_freeze(struct device
*dev
) { return 0; }
872 void acpi_handle_printk(const char *level
, acpi_handle handle
,
873 const char *fmt
, ...);
874 #else /* !CONFIG_ACPI */
875 static inline __printf(3, 4) void
876 acpi_handle_printk(const char *level
, void *handle
, const char *fmt
, ...) {}
877 #endif /* !CONFIG_ACPI */
879 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
881 void __acpi_handle_debug(struct _ddebug
*descriptor
, acpi_handle handle
, const char *fmt
, ...);
883 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
884 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
888 * acpi_handle_<level>: Print message with ACPI prefix and object path
890 * These interfaces acquire the global namespace mutex to obtain an object
891 * path. In interrupt context, it shows the object path as <n/a>.
893 #define acpi_handle_emerg(handle, fmt, ...) \
894 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
895 #define acpi_handle_alert(handle, fmt, ...) \
896 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
897 #define acpi_handle_crit(handle, fmt, ...) \
898 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
899 #define acpi_handle_err(handle, fmt, ...) \
900 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
901 #define acpi_handle_warn(handle, fmt, ...) \
902 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
903 #define acpi_handle_notice(handle, fmt, ...) \
904 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
905 #define acpi_handle_info(handle, fmt, ...) \
906 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
909 #define acpi_handle_debug(handle, fmt, ...) \
910 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
912 #if defined(CONFIG_DYNAMIC_DEBUG)
913 #define acpi_handle_debug(handle, fmt, ...) \
915 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
916 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
917 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
921 #define acpi_handle_debug(handle, fmt, ...) \
924 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
930 struct acpi_gpio_params
{
931 unsigned int crs_entry_index
;
932 unsigned int line_index
;
936 struct acpi_gpio_mapping
{
938 const struct acpi_gpio_params
*data
;
942 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
943 int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
944 const struct acpi_gpio_mapping
*gpios
);
946 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
)
949 adev
->driver_gpios
= NULL
;
952 int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
);
954 static inline int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
955 const struct acpi_gpio_mapping
*gpios
)
959 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
) {}
961 static inline int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
)
967 /* Device properties */
969 #define MAX_ACPI_REFERENCE_ARGS 8
970 struct acpi_reference_args
{
971 struct acpi_device
*adev
;
973 u64 args
[MAX_ACPI_REFERENCE_ARGS
];
977 int acpi_dev_get_property(struct acpi_device
*adev
, const char *name
,
978 acpi_object_type type
, const union acpi_object
**obj
);
979 int __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
980 const char *name
, size_t index
, size_t num_args
,
981 struct acpi_reference_args
*args
);
983 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
984 const char *name
, size_t index
,
985 struct acpi_reference_args
*args
)
987 return __acpi_node_get_property_reference(fwnode
, name
, index
,
988 MAX_ACPI_REFERENCE_ARGS
, args
);
991 int acpi_node_prop_get(struct fwnode_handle
*fwnode
, const char *propname
,
993 int acpi_dev_prop_read_single(struct acpi_device
*adev
, const char *propname
,
994 enum dev_prop_type proptype
, void *val
);
995 int acpi_node_prop_read(struct fwnode_handle
*fwnode
, const char *propname
,
996 enum dev_prop_type proptype
, void *val
, size_t nval
);
997 int acpi_dev_prop_read(struct acpi_device
*adev
, const char *propname
,
998 enum dev_prop_type proptype
, void *val
, size_t nval
);
1000 struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
1001 struct fwnode_handle
*subnode
);
1003 struct acpi_probe_entry
;
1004 typedef bool (*acpi_probe_entry_validate_subtbl
)(struct acpi_subtable_header
*,
1005 struct acpi_probe_entry
*);
1007 #define ACPI_TABLE_ID_LEN 5
1010 * struct acpi_probe_entry - boot-time probing entry
1011 * @id: ACPI table name
1012 * @type: Optional subtable type to match
1013 * (if @id contains subtables)
1014 * @subtable_valid: Optional callback to check the validity of
1016 * @probe_table: Callback to the driver being probed when table
1017 * match is successful
1018 * @probe_subtbl: Callback to the driver being probed when table and
1019 * subtable match (and optional callback is successful)
1020 * @driver_data: Sideband data provided back to the driver
1022 struct acpi_probe_entry
{
1023 __u8 id
[ACPI_TABLE_ID_LEN
];
1025 acpi_probe_entry_validate_subtbl subtable_valid
;
1027 acpi_tbl_table_handler probe_table
;
1028 acpi_tbl_entry_handler probe_subtbl
;
1030 kernel_ulong_t driver_data
;
1033 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1034 static const struct acpi_probe_entry __acpi_probe_##name \
1035 __used __section(__##table##_acpi_probe_table) \
1039 .subtable_valid = valid, \
1040 .probe_table = (acpi_tbl_table_handler)fn, \
1041 .driver_data = data, \
1044 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1045 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1047 int __acpi_probe_device_table(struct acpi_probe_entry
*start
, int nr
);
1049 #define acpi_probe_device_table(t) \
1051 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1052 ACPI_PROBE_TABLE_END(t); \
1053 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1054 (&ACPI_PROBE_TABLE_END(t) - \
1055 &ACPI_PROBE_TABLE(t))); \
1058 static inline int acpi_dev_get_property(struct acpi_device
*adev
,
1059 const char *name
, acpi_object_type type
,
1060 const union acpi_object
**obj
)
1066 __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1067 const char *name
, size_t index
, size_t num_args
,
1068 struct acpi_reference_args
*args
)
1073 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1074 const char *name
, size_t index
,
1075 struct acpi_reference_args
*args
)
1080 static inline int acpi_node_prop_get(struct fwnode_handle
*fwnode
,
1081 const char *propname
,
1087 static inline int acpi_dev_prop_get(struct acpi_device
*adev
,
1088 const char *propname
,
1094 static inline int acpi_dev_prop_read_single(struct acpi_device
*adev
,
1095 const char *propname
,
1096 enum dev_prop_type proptype
,
1102 static inline int acpi_node_prop_read(struct fwnode_handle
*fwnode
,
1103 const char *propname
,
1104 enum dev_prop_type proptype
,
1105 void *val
, size_t nval
)
1110 static inline int acpi_dev_prop_read(struct acpi_device
*adev
,
1111 const char *propname
,
1112 enum dev_prop_type proptype
,
1113 void *val
, size_t nval
)
1118 static inline struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
1119 struct fwnode_handle
*subnode
)
1124 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1125 static const void * __acpi_table_##name[] \
1126 __attribute__((unused)) \
1127 = { (void *) table_id, \
1128 (void *) subtable, \
1133 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1136 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1137 void acpi_table_upgrade(void);
1139 static inline void acpi_table_upgrade(void) { }
1142 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1143 extern bool acpi_has_watchdog(void);
1145 static inline bool acpi_has_watchdog(void) { return false; }
1148 #ifdef CONFIG_ACPI_SPCR_TABLE
1149 int parse_spcr(bool earlycon
);
1151 static inline int parse_spcr(bool earlycon
) { return 0; }
1154 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1155 int acpi_irq_get(acpi_handle handle
, unsigned int index
, struct resource
*res
);
1158 int acpi_irq_get(acpi_handle handle
, unsigned int index
, struct resource
*res
)
1164 #endif /*_LINUX_ACPI_H*/