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>
29 #include <linux/uuid.h>
34 #include <acpi/acpi.h>
38 #include <linux/list.h>
39 #include <linux/mod_devicetable.h>
40 #include <linux/dynamic_debug.h>
41 #include <linux/module.h>
42 #include <linux/mutex.h>
44 #include <acpi/acpi_bus.h>
45 #include <acpi/acpi_drivers.h>
46 #include <acpi/acpi_numa.h>
47 #include <acpi/acpi_io.h>
50 static inline acpi_handle
acpi_device_handle(struct acpi_device
*adev
)
52 return adev
? adev
->handle
: NULL
;
55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
57 acpi_fwnode_handle(adev) : NULL)
58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
60 static inline struct fwnode_handle
*acpi_alloc_fwnode_static(void)
62 struct fwnode_handle
*fwnode
;
64 fwnode
= kzalloc(sizeof(struct fwnode_handle
), GFP_KERNEL
);
68 fwnode
->type
= FWNODE_ACPI_STATIC
;
73 static inline void acpi_free_fwnode_static(struct fwnode_handle
*fwnode
)
75 if (WARN_ON(!fwnode
|| fwnode
->type
!= FWNODE_ACPI_STATIC
))
82 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
83 * the PCI-defined class-code information
85 * @_cls : the class, subclass, prog-if triple for this device
86 * @_msk : the class mask for this device
88 * This macro is used to create a struct acpi_device_id that matches a
89 * specific PCI class. The .id and .driver_data fields will be left
90 * initialized with the default value.
92 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
94 static inline bool has_acpi_companion(struct device
*dev
)
96 return is_acpi_device_node(dev
->fwnode
);
99 static inline void acpi_preset_companion(struct device
*dev
,
100 struct acpi_device
*parent
, u64 addr
)
102 ACPI_COMPANION_SET(dev
, acpi_find_child_device(parent
, addr
, NULL
));
105 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
107 return dev_name(&adev
->dev
);
110 struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
);
112 enum acpi_irq_model_id
{
113 ACPI_IRQ_MODEL_PIC
= 0,
114 ACPI_IRQ_MODEL_IOAPIC
,
115 ACPI_IRQ_MODEL_IOSAPIC
,
116 ACPI_IRQ_MODEL_PLATFORM
,
121 extern enum acpi_irq_model_id acpi_irq_model
;
123 enum acpi_interrupt_id
{
124 ACPI_INTERRUPT_PMI
= 1,
130 #define ACPI_SPACE_MEM 0
132 enum acpi_address_range_id
{
133 ACPI_ADDRESS_RANGE_MEMORY
= 1,
134 ACPI_ADDRESS_RANGE_RESERVED
= 2,
135 ACPI_ADDRESS_RANGE_ACPI
= 3,
136 ACPI_ADDRESS_RANGE_NVS
= 4,
137 ACPI_ADDRESS_RANGE_COUNT
143 typedef int (*acpi_tbl_table_handler
)(struct acpi_table_header
*table
);
145 typedef int (*acpi_tbl_entry_handler
)(struct acpi_subtable_header
*header
,
146 const unsigned long end
);
148 /* Debugger support */
150 struct acpi_debugger_ops
{
151 int (*create_thread
)(acpi_osd_exec_callback function
, void *context
);
152 ssize_t (*write_log
)(const char *msg
);
153 ssize_t (*read_cmd
)(char *buffer
, size_t length
);
154 int (*wait_command_ready
)(bool single_step
, char *buffer
, size_t length
);
155 int (*notify_command_complete
)(void);
158 struct acpi_debugger
{
159 const struct acpi_debugger_ops
*ops
;
160 struct module
*owner
;
164 #ifdef CONFIG_ACPI_DEBUGGER
165 int __init
acpi_debugger_init(void);
166 int acpi_register_debugger(struct module
*owner
,
167 const struct acpi_debugger_ops
*ops
);
168 void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
);
169 int acpi_debugger_create_thread(acpi_osd_exec_callback function
, void *context
);
170 ssize_t
acpi_debugger_write_log(const char *msg
);
171 ssize_t
acpi_debugger_read_cmd(char *buffer
, size_t buffer_length
);
172 int acpi_debugger_wait_command_ready(void);
173 int acpi_debugger_notify_command_complete(void);
175 static inline int acpi_debugger_init(void)
180 static inline int acpi_register_debugger(struct module
*owner
,
181 const struct acpi_debugger_ops
*ops
)
186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
)
190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function
,
196 static inline int acpi_debugger_write_log(const char *msg
)
201 static inline int acpi_debugger_read_cmd(char *buffer
, u32 buffer_length
)
206 static inline int acpi_debugger_wait_command_ready(void)
211 static inline int acpi_debugger_notify_command_complete(void)
217 #define BAD_MADT_ENTRY(entry, end) ( \
218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
221 struct acpi_subtable_proc
{
223 acpi_tbl_entry_handler handler
;
227 char * __acpi_map_table (unsigned long phys_addr
, unsigned long size
);
228 void __acpi_unmap_table(char *map
, unsigned long size
);
229 int early_acpi_boot_init(void);
230 int acpi_boot_init (void);
231 void acpi_boot_table_init (void);
232 int acpi_mps_check (void);
233 int acpi_numa_init (void);
235 int acpi_table_init (void);
236 int acpi_table_parse(char *id
, acpi_tbl_table_handler handler
);
237 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
239 acpi_tbl_entry_handler handler
,
240 unsigned int max_entries
);
241 int __init
acpi_table_parse_entries_array(char *id
, unsigned long table_size
,
242 struct acpi_subtable_proc
*proc
, int proc_num
,
243 unsigned int max_entries
);
244 int acpi_table_parse_madt(enum acpi_madt_type id
,
245 acpi_tbl_entry_handler handler
,
246 unsigned int max_entries
);
247 int acpi_parse_mcfg (struct acpi_table_header
*header
);
248 void acpi_table_print_madt_entry (struct acpi_subtable_header
*madt
);
250 /* the following numa functions are architecture-dependent */
251 void acpi_numa_slit_init (struct acpi_table_slit
*slit
);
253 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
254 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity
*pa
);
257 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity
*pa
) { }
260 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity
*pa
);
263 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
);
266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
) { }
269 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity
*ma
);
271 #ifndef PHYS_CPUID_INVALID
272 typedef u32 phys_cpuid_t
;
273 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
276 static inline bool invalid_logical_cpuid(u32 cpuid
)
278 return (int)cpuid
< 0;
281 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id
)
283 return phys_id
== PHYS_CPUID_INVALID
;
286 /* Validate the processor object's proc_id */
287 bool acpi_duplicate_processor_id(int proc_id
);
289 #ifdef CONFIG_ACPI_HOTPLUG_CPU
290 /* Arch dependent functions for cpu hotplug support */
291 int acpi_map_cpu(acpi_handle handle
, phys_cpuid_t physid
, u32 acpi_id
,
293 int acpi_unmap_cpu(int cpu
);
294 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
296 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
297 int acpi_get_ioapic_id(acpi_handle handle
, u32 gsi_base
, u64
*phys_addr
);
300 int acpi_register_ioapic(acpi_handle handle
, u64 phys_addr
, u32 gsi_base
);
301 int acpi_unregister_ioapic(acpi_handle handle
, u32 gsi_base
);
302 int acpi_ioapic_registered(acpi_handle handle
, u32 gsi_base
);
303 void acpi_irq_stats_init(void);
304 extern u32 acpi_irq_handled
;
305 extern u32 acpi_irq_not_handled
;
306 extern unsigned int acpi_sci_irq
;
307 extern bool acpi_no_s5
;
308 #define INVALID_ACPI_IRQ ((unsigned)-1)
309 static inline bool acpi_sci_irq_valid(void)
311 return acpi_sci_irq
!= INVALID_ACPI_IRQ
;
315 extern unsigned long acpi_realmode_flags
;
317 int acpi_register_gsi (struct device
*dev
, u32 gsi
, int triggering
, int polarity
);
318 int acpi_gsi_to_irq (u32 gsi
, unsigned int *irq
);
319 int acpi_isa_irq_to_gsi (unsigned isa_irq
, u32
*gsi
);
321 void acpi_set_irq_model(enum acpi_irq_model_id model
,
322 struct fwnode_handle
*fwnode
);
324 #ifdef CONFIG_X86_IO_APIC
325 extern int acpi_get_override_irq(u32 gsi
, int *trigger
, int *polarity
);
327 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
330 * This function undoes the effect of one call to acpi_register_gsi().
331 * If this matches the last registration, any IRQ resources for gsi
334 void acpi_unregister_gsi (u32 gsi
);
338 int acpi_pci_irq_enable (struct pci_dev
*dev
);
339 void acpi_penalize_isa_irq(int irq
, int active
);
340 bool acpi_isa_irq_available(int irq
);
341 void acpi_penalize_sci_irq(int irq
, int trigger
, int polarity
);
342 void acpi_pci_irq_disable (struct pci_dev
*dev
);
344 extern int ec_read(u8 addr
, u8
*val
);
345 extern int ec_write(u8 addr
, u8 val
);
346 extern int ec_transaction(u8 command
,
347 const u8
*wdata
, unsigned wdata_len
,
348 u8
*rdata
, unsigned rdata_len
);
349 extern acpi_handle
ec_get_handle(void);
351 extern bool acpi_is_pnp_device(struct acpi_device
*);
353 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
355 typedef void (*wmi_notify_handler
) (u32 value
, void *context
);
357 extern acpi_status
wmi_evaluate_method(const char *guid
, u8 instance
,
359 const struct acpi_buffer
*in
,
360 struct acpi_buffer
*out
);
361 extern acpi_status
wmi_query_block(const char *guid
, u8 instance
,
362 struct acpi_buffer
*out
);
363 extern acpi_status
wmi_set_block(const char *guid
, u8 instance
,
364 const struct acpi_buffer
*in
);
365 extern acpi_status
wmi_install_notify_handler(const char *guid
,
366 wmi_notify_handler handler
, void *data
);
367 extern acpi_status
wmi_remove_notify_handler(const char *guid
);
368 extern acpi_status
wmi_get_event_data(u32 event
, struct acpi_buffer
*out
);
369 extern bool wmi_has_guid(const char *guid
);
371 #endif /* CONFIG_ACPI_WMI */
373 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
374 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
375 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
376 #define ACPI_VIDEO_BACKLIGHT 0x0008
377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
378 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
380 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
381 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
382 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
384 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
386 extern char acpi_video_backlight_string
[];
387 extern long acpi_is_video_device(acpi_handle handle
);
388 extern int acpi_blacklisted(void);
389 extern void acpi_osi_setup(char *str
);
390 extern bool acpi_osi_is_win8(void);
392 #ifdef CONFIG_ACPI_NUMA
393 int acpi_map_pxm_to_online_node(int pxm
);
394 int acpi_get_node(acpi_handle handle
);
396 static inline int acpi_map_pxm_to_online_node(int pxm
)
400 static inline int acpi_get_node(acpi_handle handle
)
405 extern int acpi_paddr_to_node(u64 start_addr
, u64 size
);
407 extern int pnpacpi_disabled
;
409 #define PXM_INVAL (-1)
411 bool acpi_dev_resource_memory(struct acpi_resource
*ares
, struct resource
*res
);
412 bool acpi_dev_resource_io(struct acpi_resource
*ares
, struct resource
*res
);
413 bool acpi_dev_resource_address_space(struct acpi_resource
*ares
,
414 struct resource_win
*win
);
415 bool acpi_dev_resource_ext_address_space(struct acpi_resource
*ares
,
416 struct resource_win
*win
);
417 unsigned long acpi_dev_irq_flags(u8 triggering
, u8 polarity
, u8 shareable
);
418 unsigned int acpi_dev_get_irq_type(int triggering
, int polarity
);
419 bool acpi_dev_resource_interrupt(struct acpi_resource
*ares
, int index
,
420 struct resource
*res
);
422 void acpi_dev_free_resource_list(struct list_head
*list
);
423 int acpi_dev_get_resources(struct acpi_device
*adev
, struct list_head
*list
,
424 int (*preproc
)(struct acpi_resource
*, void *),
426 int acpi_dev_filter_resource_type(struct acpi_resource
*ares
,
427 unsigned long types
);
429 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource
*ares
,
432 return acpi_dev_filter_resource_type(ares
, (unsigned long)arg
);
435 struct acpi_device
*acpi_resource_consumer(struct resource
*res
);
437 int acpi_check_resource_conflict(const struct resource
*res
);
439 int acpi_check_region(resource_size_t start
, resource_size_t n
,
442 int acpi_resources_are_enforced(void);
444 #ifdef CONFIG_HIBERNATION
445 void __init
acpi_no_s4_hw_signature(void);
448 #ifdef CONFIG_PM_SLEEP
449 void __init
acpi_old_suspend_ordering(void);
450 void __init
acpi_nvs_nosave(void);
451 void __init
acpi_nvs_nosave_s3(void);
452 #endif /* CONFIG_PM_SLEEP */
454 struct acpi_osc_context
{
455 char *uuid_str
; /* UUID string */
457 struct acpi_buffer cap
; /* list of DWORD capabilities */
458 struct acpi_buffer ret
; /* free by caller if success */
461 acpi_status
acpi_run_osc(acpi_handle handle
, struct acpi_osc_context
*context
);
463 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
464 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
465 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
466 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
468 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
469 #define OSC_QUERY_ENABLE 0x00000001 /* input */
470 #define OSC_REQUEST_ERROR 0x00000002 /* return */
471 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
472 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
473 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
475 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
476 #define OSC_SB_PAD_SUPPORT 0x00000001
477 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
478 #define OSC_SB_PR3_SUPPORT 0x00000004
479 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
480 #define OSC_SB_APEI_SUPPORT 0x00000010
481 #define OSC_SB_CPC_SUPPORT 0x00000020
482 #define OSC_SB_CPCV2_SUPPORT 0x00000040
483 #define OSC_SB_PCLPI_SUPPORT 0x00000080
484 #define OSC_SB_OSLPI_SUPPORT 0x00000100
485 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
487 extern bool osc_sb_apei_support_acked
;
488 extern bool osc_pc_lpi_support_confirmed
;
490 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
491 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
492 #define OSC_PCI_ASPM_SUPPORT 0x00000002
493 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
494 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
495 #define OSC_PCI_MSI_SUPPORT 0x00000010
496 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
498 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
499 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
500 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
501 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
502 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
503 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
504 #define OSC_PCI_CONTROL_MASKS 0x0000001f
506 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
507 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
508 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
509 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
510 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
511 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
512 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
513 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
514 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
515 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
517 extern acpi_status
acpi_pci_osc_control_set(acpi_handle handle
,
520 /* Enable _OST when all relevant hotplug operations are enabled */
521 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
522 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
523 defined(CONFIG_ACPI_CONTAINER)
524 #define ACPI_HOTPLUG_OST
527 /* _OST Source Event Code (OSPM Action) */
528 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
529 #define ACPI_OST_EC_OSPM_EJECT 0x103
530 #define ACPI_OST_EC_OSPM_INSERTION 0x200
532 /* _OST General Processing Status Code */
533 #define ACPI_OST_SC_SUCCESS 0x0
534 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
535 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
537 /* _OST OS Shutdown Processing (0x100) Status Code */
538 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
539 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
540 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
541 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
543 /* _OST Ejection Request (0x3, 0x103) Status Code */
544 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
545 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
546 #define ACPI_OST_SC_DEVICE_BUSY 0x82
547 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
548 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
550 /* _OST Insertion Request (0x200) Status Code */
551 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
552 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
553 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
555 extern void acpi_early_init(void);
556 extern void acpi_subsystem_init(void);
558 extern int acpi_nvs_register(__u64 start
, __u64 size
);
560 extern int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
563 const struct acpi_device_id
*acpi_match_device(const struct acpi_device_id
*ids
,
564 const struct device
*dev
);
566 extern bool acpi_driver_match_device(struct device
*dev
,
567 const struct device_driver
*drv
);
568 int acpi_device_uevent_modalias(struct device
*, struct kobj_uevent_env
*);
569 int acpi_device_modalias(struct device
*, char *, int);
570 void acpi_walk_dep_device_list(acpi_handle handle
);
572 struct platform_device
*acpi_create_platform_device(struct acpi_device
*,
573 struct property_entry
*);
574 #define ACPI_PTR(_ptr) (_ptr)
576 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
578 adev
->flags
.visited
= true;
581 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
583 adev
->flags
.visited
= false;
586 enum acpi_reconfig_event
{
587 ACPI_RECONFIG_DEVICE_ADD
= 0,
588 ACPI_RECONFIG_DEVICE_REMOVE
,
591 int acpi_reconfig_notifier_register(struct notifier_block
*nb
);
592 int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
);
594 #ifdef CONFIG_ACPI_GTDT
595 int acpi_gtdt_init(struct acpi_table_header
*table
, int *platform_timer_count
);
596 int acpi_gtdt_map_ppi(int type
);
597 bool acpi_gtdt_c3stop(int type
);
598 int acpi_arch_timer_mem_init(struct arch_timer_mem
*timer_mem
, int *timer_count
);
601 #else /* !CONFIG_ACPI */
603 #define acpi_disabled 1
605 #define ACPI_COMPANION(dev) (NULL)
606 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
607 #define ACPI_HANDLE(dev) (NULL)
608 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
610 struct fwnode_handle
;
612 static inline bool acpi_dev_found(const char *hid
)
617 static inline bool acpi_dev_present(const char *hid
, const char *uid
, s64 hrv
)
622 static inline bool is_acpi_node(struct fwnode_handle
*fwnode
)
627 static inline bool is_acpi_device_node(struct fwnode_handle
*fwnode
)
632 static inline struct acpi_device
*to_acpi_device_node(struct fwnode_handle
*fwnode
)
637 static inline bool is_acpi_data_node(struct fwnode_handle
*fwnode
)
642 static inline struct acpi_data_node
*to_acpi_data_node(struct fwnode_handle
*fwnode
)
647 static inline bool acpi_data_node_match(struct fwnode_handle
*fwnode
,
653 static inline struct fwnode_handle
*acpi_fwnode_handle(struct acpi_device
*adev
)
658 static inline bool has_acpi_companion(struct device
*dev
)
663 static inline void acpi_preset_companion(struct device
*dev
,
664 struct acpi_device
*parent
, u64 addr
)
668 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
673 static inline struct device
*acpi_get_first_physical_node(struct acpi_device
*adev
)
678 static inline void acpi_early_init(void) { }
679 static inline void acpi_subsystem_init(void) { }
681 static inline int early_acpi_boot_init(void)
685 static inline int acpi_boot_init(void)
690 static inline void acpi_boot_table_init(void)
695 static inline int acpi_mps_check(void)
700 static inline int acpi_check_resource_conflict(struct resource
*res
)
705 static inline int acpi_check_region(resource_size_t start
, resource_size_t n
,
711 struct acpi_table_header
;
712 static inline int acpi_table_parse(char *id
,
713 int (*handler
)(struct acpi_table_header
*))
718 static inline int acpi_nvs_register(__u64 start
, __u64 size
)
723 static inline int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
729 struct acpi_device_id
;
731 static inline const struct acpi_device_id
*acpi_match_device(
732 const struct acpi_device_id
*ids
, const struct device
*dev
)
737 static inline bool acpi_driver_match_device(struct device
*dev
,
738 const struct device_driver
*drv
)
743 static inline union acpi_object
*acpi_evaluate_dsm(acpi_handle handle
,
746 union acpi_object
*argv4
)
751 static inline int acpi_device_uevent_modalias(struct device
*dev
,
752 struct kobj_uevent_env
*env
)
757 static inline int acpi_device_modalias(struct device
*dev
,
763 static inline bool acpi_dma_supported(struct acpi_device
*adev
)
768 static inline enum dev_dma_attr
acpi_get_dma_attr(struct acpi_device
*adev
)
770 return DEV_DMA_NOT_SUPPORTED
;
773 static inline int acpi_dma_configure(struct device
*dev
,
774 enum dev_dma_attr attr
)
779 static inline void acpi_dma_deconfigure(struct device
*dev
) { }
781 #define ACPI_PTR(_ptr) (NULL)
783 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
787 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
791 static inline int acpi_reconfig_notifier_register(struct notifier_block
*nb
)
796 static inline int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
)
801 static inline struct acpi_device
*acpi_resource_consumer(struct resource
*res
)
806 #endif /* !CONFIG_ACPI */
808 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
809 int acpi_ioapic_add(acpi_handle root
);
811 static inline int acpi_ioapic_add(acpi_handle root
) { return 0; }
815 void acpi_os_set_prepare_sleep(int (*func
)(u8 sleep_state
,
816 u32 pm1a_ctrl
, u32 pm1b_ctrl
));
818 acpi_status
acpi_os_prepare_sleep(u8 sleep_state
,
819 u32 pm1a_control
, u32 pm1b_control
);
821 void acpi_os_set_prepare_extended_sleep(int (*func
)(u8 sleep_state
,
822 u32 val_a
, u32 val_b
));
824 acpi_status
acpi_os_prepare_extended_sleep(u8 sleep_state
,
825 u32 val_a
, u32 val_b
);
828 void arch_reserve_mem_area(acpi_physical_address addr
, size_t size
);
830 static inline void arch_reserve_mem_area(acpi_physical_address addr
,
834 #endif /* CONFIG_X86 */
836 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
839 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
840 int acpi_dev_runtime_suspend(struct device
*dev
);
841 int acpi_dev_runtime_resume(struct device
*dev
);
842 int acpi_subsys_runtime_suspend(struct device
*dev
);
843 int acpi_subsys_runtime_resume(struct device
*dev
);
844 struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
);
845 int acpi_dev_pm_attach(struct device
*dev
, bool power_on
);
847 static inline int acpi_dev_runtime_suspend(struct device
*dev
) { return 0; }
848 static inline int acpi_dev_runtime_resume(struct device
*dev
) { return 0; }
849 static inline int acpi_subsys_runtime_suspend(struct device
*dev
) { return 0; }
850 static inline int acpi_subsys_runtime_resume(struct device
*dev
) { return 0; }
851 static inline struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
)
855 static inline int acpi_dev_pm_attach(struct device
*dev
, bool power_on
)
861 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
862 int acpi_dev_suspend_late(struct device
*dev
);
863 int acpi_dev_resume_early(struct device
*dev
);
864 int acpi_subsys_prepare(struct device
*dev
);
865 void acpi_subsys_complete(struct device
*dev
);
866 int acpi_subsys_suspend_late(struct device
*dev
);
867 int acpi_subsys_resume_early(struct device
*dev
);
868 int acpi_subsys_suspend(struct device
*dev
);
869 int acpi_subsys_freeze(struct device
*dev
);
871 static inline int acpi_dev_suspend_late(struct device
*dev
) { return 0; }
872 static inline int acpi_dev_resume_early(struct device
*dev
) { return 0; }
873 static inline int acpi_subsys_prepare(struct device
*dev
) { return 0; }
874 static inline void acpi_subsys_complete(struct device
*dev
) {}
875 static inline int acpi_subsys_suspend_late(struct device
*dev
) { return 0; }
876 static inline int acpi_subsys_resume_early(struct device
*dev
) { return 0; }
877 static inline int acpi_subsys_suspend(struct device
*dev
) { return 0; }
878 static inline int acpi_subsys_freeze(struct device
*dev
) { return 0; }
883 void acpi_handle_printk(const char *level
, acpi_handle handle
,
884 const char *fmt
, ...);
885 #else /* !CONFIG_ACPI */
886 static inline __printf(3, 4) void
887 acpi_handle_printk(const char *level
, void *handle
, const char *fmt
, ...) {}
888 #endif /* !CONFIG_ACPI */
890 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
892 void __acpi_handle_debug(struct _ddebug
*descriptor
, acpi_handle handle
, const char *fmt
, ...);
894 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
895 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
899 * acpi_handle_<level>: Print message with ACPI prefix and object path
901 * These interfaces acquire the global namespace mutex to obtain an object
902 * path. In interrupt context, it shows the object path as <n/a>.
904 #define acpi_handle_emerg(handle, fmt, ...) \
905 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
906 #define acpi_handle_alert(handle, fmt, ...) \
907 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
908 #define acpi_handle_crit(handle, fmt, ...) \
909 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
910 #define acpi_handle_err(handle, fmt, ...) \
911 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
912 #define acpi_handle_warn(handle, fmt, ...) \
913 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
914 #define acpi_handle_notice(handle, fmt, ...) \
915 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
916 #define acpi_handle_info(handle, fmt, ...) \
917 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
920 #define acpi_handle_debug(handle, fmt, ...) \
921 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
923 #if defined(CONFIG_DYNAMIC_DEBUG)
924 #define acpi_handle_debug(handle, fmt, ...) \
926 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
927 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
928 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
932 #define acpi_handle_debug(handle, fmt, ...) \
935 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
941 struct acpi_gpio_params
{
942 unsigned int crs_entry_index
;
943 unsigned int line_index
;
947 struct acpi_gpio_mapping
{
949 const struct acpi_gpio_params
*data
;
953 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
954 int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
955 const struct acpi_gpio_mapping
*gpios
);
957 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
)
960 adev
->driver_gpios
= NULL
;
963 int devm_acpi_dev_add_driver_gpios(struct device
*dev
,
964 const struct acpi_gpio_mapping
*gpios
);
965 void devm_acpi_dev_remove_driver_gpios(struct device
*dev
);
967 bool acpi_gpio_get_irq_resource(struct acpi_resource
*ares
,
968 struct acpi_resource_gpio
**agpio
);
969 int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
);
971 static inline int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
972 const struct acpi_gpio_mapping
*gpios
)
976 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
) {}
978 static inline int devm_acpi_dev_add_driver_gpios(struct device
*dev
,
979 const struct acpi_gpio_mapping
*gpios
)
983 static inline void devm_acpi_dev_remove_driver_gpios(struct device
*dev
) {}
985 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource
*ares
,
986 struct acpi_resource_gpio
**agpio
)
990 static inline int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
)
996 /* Device properties */
998 #define MAX_ACPI_REFERENCE_ARGS 8
999 struct acpi_reference_args
{
1000 struct acpi_device
*adev
;
1002 u64 args
[MAX_ACPI_REFERENCE_ARGS
];
1006 int acpi_dev_get_property(struct acpi_device
*adev
, const char *name
,
1007 acpi_object_type type
, const union acpi_object
**obj
);
1008 int __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1009 const char *name
, size_t index
, size_t num_args
,
1010 struct acpi_reference_args
*args
);
1012 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1013 const char *name
, size_t index
,
1014 struct acpi_reference_args
*args
)
1016 return __acpi_node_get_property_reference(fwnode
, name
, index
,
1017 MAX_ACPI_REFERENCE_ARGS
, args
);
1020 int acpi_node_prop_get(struct fwnode_handle
*fwnode
, const char *propname
,
1022 int acpi_dev_prop_read_single(struct acpi_device
*adev
, const char *propname
,
1023 enum dev_prop_type proptype
, void *val
);
1024 int acpi_node_prop_read(struct fwnode_handle
*fwnode
, const char *propname
,
1025 enum dev_prop_type proptype
, void *val
, size_t nval
);
1026 int acpi_dev_prop_read(struct acpi_device
*adev
, const char *propname
,
1027 enum dev_prop_type proptype
, void *val
, size_t nval
);
1029 struct fwnode_handle
*acpi_get_next_subnode(struct fwnode_handle
*fwnode
,
1030 struct fwnode_handle
*child
);
1031 struct fwnode_handle
*acpi_node_get_parent(struct fwnode_handle
*fwnode
);
1033 struct fwnode_handle
*acpi_graph_get_next_endpoint(struct fwnode_handle
*fwnode
,
1034 struct fwnode_handle
*prev
);
1035 int acpi_graph_get_remote_endpoint(struct fwnode_handle
*fwnode
,
1036 struct fwnode_handle
**remote
,
1037 struct fwnode_handle
**port
,
1038 struct fwnode_handle
**endpoint
);
1040 struct acpi_probe_entry
;
1041 typedef bool (*acpi_probe_entry_validate_subtbl
)(struct acpi_subtable_header
*,
1042 struct acpi_probe_entry
*);
1044 #define ACPI_TABLE_ID_LEN 5
1047 * struct acpi_probe_entry - boot-time probing entry
1048 * @id: ACPI table name
1049 * @type: Optional subtable type to match
1050 * (if @id contains subtables)
1051 * @subtable_valid: Optional callback to check the validity of
1053 * @probe_table: Callback to the driver being probed when table
1054 * match is successful
1055 * @probe_subtbl: Callback to the driver being probed when table and
1056 * subtable match (and optional callback is successful)
1057 * @driver_data: Sideband data provided back to the driver
1059 struct acpi_probe_entry
{
1060 __u8 id
[ACPI_TABLE_ID_LEN
];
1062 acpi_probe_entry_validate_subtbl subtable_valid
;
1064 acpi_tbl_table_handler probe_table
;
1065 acpi_tbl_entry_handler probe_subtbl
;
1067 kernel_ulong_t driver_data
;
1070 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1071 static const struct acpi_probe_entry __acpi_probe_##name \
1072 __used __section(__##table##_acpi_probe_table) \
1076 .subtable_valid = valid, \
1077 .probe_table = (acpi_tbl_table_handler)fn, \
1078 .driver_data = data, \
1081 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1082 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1084 int __acpi_probe_device_table(struct acpi_probe_entry
*start
, int nr
);
1086 #define acpi_probe_device_table(t) \
1088 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1089 ACPI_PROBE_TABLE_END(t); \
1090 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1091 (&ACPI_PROBE_TABLE_END(t) - \
1092 &ACPI_PROBE_TABLE(t))); \
1095 static inline int acpi_dev_get_property(struct acpi_device
*adev
,
1096 const char *name
, acpi_object_type type
,
1097 const union acpi_object
**obj
)
1103 __acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1104 const char *name
, size_t index
, size_t num_args
,
1105 struct acpi_reference_args
*args
)
1110 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1111 const char *name
, size_t index
,
1112 struct acpi_reference_args
*args
)
1117 static inline int acpi_node_prop_get(struct fwnode_handle
*fwnode
,
1118 const char *propname
,
1124 static inline int acpi_dev_prop_get(struct acpi_device
*adev
,
1125 const char *propname
,
1131 static inline int acpi_dev_prop_read_single(struct acpi_device
*adev
,
1132 const char *propname
,
1133 enum dev_prop_type proptype
,
1139 static inline int acpi_node_prop_read(struct fwnode_handle
*fwnode
,
1140 const char *propname
,
1141 enum dev_prop_type proptype
,
1142 void *val
, size_t nval
)
1147 static inline int acpi_dev_prop_read(struct acpi_device
*adev
,
1148 const char *propname
,
1149 enum dev_prop_type proptype
,
1150 void *val
, size_t nval
)
1155 static inline struct fwnode_handle
*
1156 acpi_get_next_subnode(struct fwnode_handle
*fwnode
, struct fwnode_handle
*child
)
1161 static inline struct fwnode_handle
*
1162 acpi_node_get_parent(struct fwnode_handle
*fwnode
)
1167 static inline struct fwnode_handle
*
1168 acpi_graph_get_next_endpoint(struct fwnode_handle
*fwnode
,
1169 struct fwnode_handle
*prev
)
1171 return ERR_PTR(-ENXIO
);
1175 acpi_graph_get_remote_endpoint(struct fwnode_handle
*fwnode
,
1176 struct fwnode_handle
**remote
,
1177 struct fwnode_handle
**port
,
1178 struct fwnode_handle
**endpoint
)
1183 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1184 static const void * __acpi_table_##name[] \
1185 __attribute__((unused)) \
1186 = { (void *) table_id, \
1187 (void *) subtable, \
1192 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1195 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1196 void acpi_table_upgrade(void);
1198 static inline void acpi_table_upgrade(void) { }
1201 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1202 extern bool acpi_has_watchdog(void);
1204 static inline bool acpi_has_watchdog(void) { return false; }
1207 #ifdef CONFIG_ACPI_SPCR_TABLE
1208 int parse_spcr(bool earlycon
);
1210 static inline int parse_spcr(bool earlycon
) { return 0; }
1213 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1214 int acpi_irq_get(acpi_handle handle
, unsigned int index
, struct resource
*res
);
1217 int acpi_irq_get(acpi_handle handle
, unsigned int index
, struct resource
*res
)
1223 #endif /*_LINUX_ACPI_H*/