Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * acpi.h - ACPI Interface
4 *
5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 */
7
8#ifndef _LINUX_ACPI_H
9#define _LINUX_ACPI_H
10
11#include <linux/errno.h>
12#include <linux/ioport.h> /* for struct resource */
13#include <linux/resource_ext.h>
14#include <linux/device.h>
15#include <linux/mod_devicetable.h>
16#include <linux/property.h>
17#include <linux/uuid.h>
18#include <linux/node.h>
19
20struct irq_domain;
21struct irq_domain_ops;
22
23#ifndef _LINUX
24#define _LINUX
25#endif
26#include <acpi/acpi.h>
27
28#ifdef CONFIG_ACPI
29
30#include <linux/list.h>
31#include <linux/dynamic_debug.h>
32#include <linux/module.h>
33#include <linux/mutex.h>
34#include <linux/fw_table.h>
35
36#include <acpi/acpi_bus.h>
37#include <acpi/acpi_drivers.h>
38#include <acpi/acpi_numa.h>
39#include <acpi/acpi_io.h>
40#include <asm/acpi.h>
41
42#ifdef CONFIG_ACPI_TABLE_LIB
43#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI)
44#define __init_or_acpilib
45#define __initdata_or_acpilib
46#else
47#define EXPORT_SYMBOL_ACPI_LIB(x)
48#define __init_or_acpilib __init
49#define __initdata_or_acpilib __initdata
50#endif
51
52static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
53{
54 return adev ? adev->handle : NULL;
55}
56
57#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
58#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
59 acpi_fwnode_handle(adev) : NULL)
60#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
61#define ACPI_HANDLE_FWNODE(fwnode) \
62 acpi_device_handle(to_acpi_device_node(fwnode))
63
64static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
65{
66 struct fwnode_handle *fwnode;
67
68 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
69 if (!fwnode)
70 return NULL;
71
72 fwnode_init(fwnode, &acpi_static_fwnode_ops);
73
74 return fwnode;
75}
76
77static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
78{
79 if (WARN_ON(!is_acpi_static_node(fwnode)))
80 return;
81
82 kfree(fwnode);
83}
84
85static inline bool has_acpi_companion(struct device *dev)
86{
87 return is_acpi_device_node(dev->fwnode);
88}
89
90static inline void acpi_preset_companion(struct device *dev,
91 struct acpi_device *parent, u64 addr)
92{
93 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
94}
95
96static inline const char *acpi_dev_name(struct acpi_device *adev)
97{
98 return dev_name(&adev->dev);
99}
100
101struct device *acpi_get_first_physical_node(struct acpi_device *adev);
102
103enum acpi_irq_model_id {
104 ACPI_IRQ_MODEL_PIC = 0,
105 ACPI_IRQ_MODEL_IOAPIC,
106 ACPI_IRQ_MODEL_IOSAPIC,
107 ACPI_IRQ_MODEL_PLATFORM,
108 ACPI_IRQ_MODEL_GIC,
109 ACPI_IRQ_MODEL_LPIC,
110 ACPI_IRQ_MODEL_COUNT
111};
112
113extern enum acpi_irq_model_id acpi_irq_model;
114
115enum acpi_interrupt_id {
116 ACPI_INTERRUPT_PMI = 1,
117 ACPI_INTERRUPT_INIT,
118 ACPI_INTERRUPT_CPEI,
119 ACPI_INTERRUPT_COUNT
120};
121
122#define ACPI_SPACE_MEM 0
123
124enum acpi_address_range_id {
125 ACPI_ADDRESS_RANGE_MEMORY = 1,
126 ACPI_ADDRESS_RANGE_RESERVED = 2,
127 ACPI_ADDRESS_RANGE_ACPI = 3,
128 ACPI_ADDRESS_RANGE_NVS = 4,
129 ACPI_ADDRESS_RANGE_COUNT
130};
131
132
133/* Table Handlers */
134typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
135
136/* Debugger support */
137
138struct acpi_debugger_ops {
139 int (*create_thread)(acpi_osd_exec_callback function, void *context);
140 ssize_t (*write_log)(const char *msg);
141 ssize_t (*read_cmd)(char *buffer, size_t length);
142 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
143 int (*notify_command_complete)(void);
144};
145
146struct acpi_debugger {
147 const struct acpi_debugger_ops *ops;
148 struct module *owner;
149 struct mutex lock;
150};
151
152#ifdef CONFIG_ACPI_DEBUGGER
153int __init acpi_debugger_init(void);
154int acpi_register_debugger(struct module *owner,
155 const struct acpi_debugger_ops *ops);
156void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
157int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
158ssize_t acpi_debugger_write_log(const char *msg);
159ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
160int acpi_debugger_wait_command_ready(void);
161int acpi_debugger_notify_command_complete(void);
162#else
163static inline int acpi_debugger_init(void)
164{
165 return -ENODEV;
166}
167
168static inline int acpi_register_debugger(struct module *owner,
169 const struct acpi_debugger_ops *ops)
170{
171 return -ENODEV;
172}
173
174static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
175{
176}
177
178static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
179 void *context)
180{
181 return -ENODEV;
182}
183
184static inline int acpi_debugger_write_log(const char *msg)
185{
186 return -ENODEV;
187}
188
189static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
190{
191 return -ENODEV;
192}
193
194static inline int acpi_debugger_wait_command_ready(void)
195{
196 return -ENODEV;
197}
198
199static inline int acpi_debugger_notify_command_complete(void)
200{
201 return -ENODEV;
202}
203#endif
204
205#define BAD_MADT_ENTRY(entry, end) ( \
206 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
207 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
208
209void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
210void __acpi_unmap_table(void __iomem *map, unsigned long size);
211int early_acpi_boot_init(void);
212int acpi_boot_init (void);
213void acpi_boot_table_prepare (void);
214void acpi_boot_table_init (void);
215int acpi_mps_check (void);
216int acpi_numa_init (void);
217
218int acpi_locate_initial_tables (void);
219void acpi_reserve_initial_tables (void);
220void acpi_table_init_complete (void);
221int acpi_table_init (void);
222
223int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
224int __init_or_acpilib acpi_table_parse_entries(char *id,
225 unsigned long table_size, int entry_id,
226 acpi_tbl_entry_handler handler, unsigned int max_entries);
227int __init_or_acpilib acpi_table_parse_entries_array(char *id,
228 unsigned long table_size, struct acpi_subtable_proc *proc,
229 int proc_num, unsigned int max_entries);
230int acpi_table_parse_madt(enum acpi_madt_type id,
231 acpi_tbl_entry_handler handler,
232 unsigned int max_entries);
233int __init_or_acpilib
234acpi_table_parse_cedt(enum acpi_cedt_type id,
235 acpi_tbl_entry_handler_arg handler_arg, void *arg);
236
237int acpi_parse_mcfg (struct acpi_table_header *header);
238void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
239
240static inline bool acpi_gicc_is_usable(struct acpi_madt_generic_interrupt *gicc)
241{
242 return gicc->flags & ACPI_MADT_ENABLED;
243}
244
245#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
246void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
247#else
248static inline void
249acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
250#endif
251
252void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
253
254#if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
255void acpi_arch_dma_setup(struct device *dev);
256#else
257static inline void acpi_arch_dma_setup(struct device *dev) { }
258#endif
259
260#ifdef CONFIG_ARM64
261void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
262#else
263static inline void
264acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
265#endif
266
267#ifndef PHYS_CPUID_INVALID
268typedef u32 phys_cpuid_t;
269#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
270#endif
271
272static inline bool invalid_logical_cpuid(u32 cpuid)
273{
274 return (int)cpuid < 0;
275}
276
277static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
278{
279 return phys_id == PHYS_CPUID_INVALID;
280}
281
282/* Validate the processor object's proc_id */
283bool acpi_duplicate_processor_id(int proc_id);
284/* Processor _CTS control */
285struct acpi_processor_power;
286
287#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
288bool acpi_processor_claim_cst_control(void);
289int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
290 struct acpi_processor_power *info);
291#else
292static inline bool acpi_processor_claim_cst_control(void) { return false; }
293static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
294 struct acpi_processor_power *info)
295{
296 return -ENODEV;
297}
298#endif
299
300#ifdef CONFIG_ACPI_HOTPLUG_CPU
301/* Arch dependent functions for cpu hotplug support */
302int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
303 int *pcpu);
304int acpi_unmap_cpu(int cpu);
305#endif /* CONFIG_ACPI_HOTPLUG_CPU */
306
307#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
308int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
309#endif
310
311int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
312int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
313int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
314void acpi_irq_stats_init(void);
315extern u32 acpi_irq_handled;
316extern u32 acpi_irq_not_handled;
317extern unsigned int acpi_sci_irq;
318extern bool acpi_no_s5;
319#define INVALID_ACPI_IRQ ((unsigned)-1)
320static inline bool acpi_sci_irq_valid(void)
321{
322 return acpi_sci_irq != INVALID_ACPI_IRQ;
323}
324
325extern int sbf_port;
326extern unsigned long acpi_realmode_flags;
327
328int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
329int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
330int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
331
332void acpi_set_irq_model(enum acpi_irq_model_id model,
333 struct fwnode_handle *(*)(u32));
334void acpi_set_gsi_to_irq_fallback(u32 (*)(u32));
335
336struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
337 unsigned int size,
338 struct fwnode_handle *fwnode,
339 const struct irq_domain_ops *ops,
340 void *host_data);
341
342#ifdef CONFIG_X86_IO_APIC
343extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
344#else
345static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
346{
347 return -1;
348}
349#endif
350/*
351 * This function undoes the effect of one call to acpi_register_gsi().
352 * If this matches the last registration, any IRQ resources for gsi
353 * are freed.
354 */
355void acpi_unregister_gsi (u32 gsi);
356
357struct pci_dev;
358
359int acpi_pci_irq_enable (struct pci_dev *dev);
360void acpi_penalize_isa_irq(int irq, int active);
361bool acpi_isa_irq_available(int irq);
362#ifdef CONFIG_PCI
363void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
364#else
365static inline void acpi_penalize_sci_irq(int irq, int trigger,
366 int polarity)
367{
368}
369#endif
370void acpi_pci_irq_disable (struct pci_dev *dev);
371
372extern int ec_read(u8 addr, u8 *val);
373extern int ec_write(u8 addr, u8 val);
374extern int ec_transaction(u8 command,
375 const u8 *wdata, unsigned wdata_len,
376 u8 *rdata, unsigned rdata_len);
377extern acpi_handle ec_get_handle(void);
378
379extern bool acpi_is_pnp_device(struct acpi_device *);
380
381#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
382
383typedef void (*wmi_notify_handler) (u32 value, void *context);
384
385int wmi_instance_count(const char *guid);
386
387extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
388 u32 method_id,
389 const struct acpi_buffer *in,
390 struct acpi_buffer *out);
391extern acpi_status wmi_query_block(const char *guid, u8 instance,
392 struct acpi_buffer *out);
393extern acpi_status wmi_set_block(const char *guid, u8 instance,
394 const struct acpi_buffer *in);
395extern acpi_status wmi_install_notify_handler(const char *guid,
396 wmi_notify_handler handler, void *data);
397extern acpi_status wmi_remove_notify_handler(const char *guid);
398extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
399extern bool wmi_has_guid(const char *guid);
400extern char *wmi_get_acpi_device_uid(const char *guid);
401
402#endif /* CONFIG_ACPI_WMI */
403
404#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
405#define ACPI_VIDEO_DEVICE_POSTING 0x0002
406#define ACPI_VIDEO_ROM_AVAILABLE 0x0004
407#define ACPI_VIDEO_BACKLIGHT 0x0008
408#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
409#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
410#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
411#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
412#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
413#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
414#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
415#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
416
417extern char acpi_video_backlight_string[];
418extern long acpi_is_video_device(acpi_handle handle);
419
420extern void acpi_osi_setup(char *str);
421extern bool acpi_osi_is_win8(void);
422
423#ifdef CONFIG_ACPI_THERMAL_LIB
424int thermal_acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
425int thermal_acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
426int thermal_acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
427int thermal_acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
428#endif
429
430#ifdef CONFIG_ACPI_HMAT
431int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord);
432#else
433static inline int acpi_get_genport_coordinates(u32 uid,
434 struct access_coordinate *coord)
435{
436 return -EOPNOTSUPP;
437}
438#endif
439
440#ifdef CONFIG_ACPI_NUMA
441int acpi_map_pxm_to_node(int pxm);
442int acpi_get_node(acpi_handle handle);
443
444/**
445 * pxm_to_online_node - Map proximity ID to online node
446 * @pxm: ACPI proximity ID
447 *
448 * This is similar to pxm_to_node(), but always returns an online
449 * node. When the mapped node from a given proximity ID is offline, it
450 * looks up the node distance table and returns the nearest online node.
451 *
452 * ACPI device drivers, which are called after the NUMA initialization has
453 * completed in the kernel, can call this interface to obtain their device
454 * NUMA topology from ACPI tables. Such drivers do not have to deal with
455 * offline nodes. A node may be offline when SRAT memory entry does not exist,
456 * or NUMA is disabled, ex. "numa=off" on x86.
457 */
458static inline int pxm_to_online_node(int pxm)
459{
460 int node = pxm_to_node(pxm);
461
462 return numa_map_to_online_node(node);
463}
464#else
465static inline int pxm_to_online_node(int pxm)
466{
467 return 0;
468}
469static inline int acpi_map_pxm_to_node(int pxm)
470{
471 return 0;
472}
473static inline int acpi_get_node(acpi_handle handle)
474{
475 return 0;
476}
477#endif
478extern int pnpacpi_disabled;
479
480#define PXM_INVAL (-1)
481
482bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
483bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
484bool acpi_dev_resource_address_space(struct acpi_resource *ares,
485 struct resource_win *win);
486bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
487 struct resource_win *win);
488unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
489unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
490bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
491 struct resource *res);
492
493void acpi_dev_free_resource_list(struct list_head *list);
494int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
495 int (*preproc)(struct acpi_resource *, void *),
496 void *preproc_data);
497int acpi_dev_get_dma_resources(struct acpi_device *adev,
498 struct list_head *list);
499int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
500int acpi_dev_filter_resource_type(struct acpi_resource *ares,
501 unsigned long types);
502
503static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
504 void *arg)
505{
506 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
507}
508
509struct acpi_device *acpi_resource_consumer(struct resource *res);
510
511int acpi_check_resource_conflict(const struct resource *res);
512
513int acpi_check_region(resource_size_t start, resource_size_t n,
514 const char *name);
515
516int acpi_resources_are_enforced(void);
517
518#ifdef CONFIG_HIBERNATION
519extern int acpi_check_s4_hw_signature;
520#endif
521
522#ifdef CONFIG_PM_SLEEP
523void __init acpi_old_suspend_ordering(void);
524void __init acpi_nvs_nosave(void);
525void __init acpi_nvs_nosave_s3(void);
526void __init acpi_sleep_no_blacklist(void);
527#endif /* CONFIG_PM_SLEEP */
528
529int acpi_register_wakeup_handler(
530 int wake_irq, bool (*wakeup)(void *context), void *context);
531void acpi_unregister_wakeup_handler(
532 bool (*wakeup)(void *context), void *context);
533
534struct acpi_osc_context {
535 char *uuid_str; /* UUID string */
536 int rev;
537 struct acpi_buffer cap; /* list of DWORD capabilities */
538 struct acpi_buffer ret; /* free by caller if success */
539};
540
541acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
542
543/* Number of _OSC capability DWORDS depends on bridge type */
544#define OSC_PCI_CAPABILITY_DWORDS 3
545#define OSC_CXL_CAPABILITY_DWORDS 5
546
547/* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
548#define OSC_QUERY_DWORD 0 /* DWORD 1 */
549#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
550#define OSC_CONTROL_DWORD 2 /* DWORD 3 */
551#define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */
552#define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */
553
554/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
555#define OSC_QUERY_ENABLE 0x00000001 /* input */
556#define OSC_REQUEST_ERROR 0x00000002 /* return */
557#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
558#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
559#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
560
561/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
562#define OSC_SB_PAD_SUPPORT 0x00000001
563#define OSC_SB_PPC_OST_SUPPORT 0x00000002
564#define OSC_SB_PR3_SUPPORT 0x00000004
565#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
566#define OSC_SB_APEI_SUPPORT 0x00000010
567#define OSC_SB_CPC_SUPPORT 0x00000020
568#define OSC_SB_CPCV2_SUPPORT 0x00000040
569#define OSC_SB_PCLPI_SUPPORT 0x00000080
570#define OSC_SB_OSLPI_SUPPORT 0x00000100
571#define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200
572#define OSC_SB_OVER_16_PSTATES_SUPPORT 0x00000400
573#define OSC_SB_GED_SUPPORT 0x00000800
574#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
575#define OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT 0x00002000
576#define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000
577#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00020000
578#define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
579#define OSC_SB_PRM_SUPPORT 0x00200000
580#define OSC_SB_FFH_OPR_SUPPORT 0x00400000
581
582extern bool osc_sb_apei_support_acked;
583extern bool osc_pc_lpi_support_confirmed;
584extern bool osc_sb_native_usb4_support_confirmed;
585extern bool osc_sb_cppc2_support_acked;
586extern bool osc_cpc_flexible_adr_space_confirmed;
587
588/* USB4 Capabilities */
589#define OSC_USB_USB3_TUNNELING 0x00000001
590#define OSC_USB_DP_TUNNELING 0x00000002
591#define OSC_USB_PCIE_TUNNELING 0x00000004
592#define OSC_USB_XDOMAIN 0x00000008
593
594extern u32 osc_sb_native_usb4_control;
595
596/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
597#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
598#define OSC_PCI_ASPM_SUPPORT 0x00000002
599#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
600#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
601#define OSC_PCI_MSI_SUPPORT 0x00000010
602#define OSC_PCI_EDR_SUPPORT 0x00000080
603#define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
604
605/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
606#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
607#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
608#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
609#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
610#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
611#define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
612#define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
613
614/* CXL _OSC: Capabilities DWORD 4: Support Field */
615#define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001
616#define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002
617#define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004
618#define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008
619
620/* CXL _OSC: Capabilities DWORD 5: Control Field */
621#define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001
622
623static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
624{
625 u32 *ret = context->ret.pointer;
626
627 return ret[OSC_CONTROL_DWORD];
628}
629
630static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
631{
632 u32 *ret = context->ret.pointer;
633
634 return ret[OSC_EXT_CONTROL_DWORD];
635}
636
637#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
638#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
639#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
640#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
641#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
642#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
643#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
644#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
645#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
646#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
647
648/* Enable _OST when all relevant hotplug operations are enabled */
649#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
650 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
651 defined(CONFIG_ACPI_CONTAINER)
652#define ACPI_HOTPLUG_OST
653#endif
654
655/* _OST Source Event Code (OSPM Action) */
656#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
657#define ACPI_OST_EC_OSPM_EJECT 0x103
658#define ACPI_OST_EC_OSPM_INSERTION 0x200
659
660/* _OST General Processing Status Code */
661#define ACPI_OST_SC_SUCCESS 0x0
662#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
663#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
664
665/* _OST OS Shutdown Processing (0x100) Status Code */
666#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
667#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
668#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
669#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
670
671/* _OST Ejection Request (0x3, 0x103) Status Code */
672#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
673#define ACPI_OST_SC_DEVICE_IN_USE 0x81
674#define ACPI_OST_SC_DEVICE_BUSY 0x82
675#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
676#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
677
678/* _OST Insertion Request (0x200) Status Code */
679#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
680#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
681#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
682
683enum acpi_predicate {
684 all_versions,
685 less_than_or_equal,
686 equal,
687 greater_than_or_equal,
688};
689
690/* Table must be terminted by a NULL entry */
691struct acpi_platform_list {
692 char oem_id[ACPI_OEM_ID_SIZE+1];
693 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
694 u32 oem_revision;
695 char *table;
696 enum acpi_predicate pred;
697 char *reason;
698 u32 data;
699};
700int acpi_match_platform_list(const struct acpi_platform_list *plat);
701
702extern void acpi_early_init(void);
703extern void acpi_subsystem_init(void);
704
705extern int acpi_nvs_register(__u64 start, __u64 size);
706
707extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
708 void *data);
709
710const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids,
711 const struct acpi_device *adev);
712
713const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
714 const struct device *dev);
715
716const void *acpi_device_get_match_data(const struct device *dev);
717extern bool acpi_driver_match_device(struct device *dev,
718 const struct device_driver *drv);
719int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *);
720int acpi_device_modalias(struct device *, char *, int);
721
722struct platform_device *acpi_create_platform_device(struct acpi_device *,
723 const struct property_entry *);
724#define ACPI_PTR(_ptr) (_ptr)
725
726static inline void acpi_device_set_enumerated(struct acpi_device *adev)
727{
728 adev->flags.visited = true;
729}
730
731static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
732{
733 adev->flags.visited = false;
734}
735
736enum acpi_reconfig_event {
737 ACPI_RECONFIG_DEVICE_ADD = 0,
738 ACPI_RECONFIG_DEVICE_REMOVE,
739};
740
741int acpi_reconfig_notifier_register(struct notifier_block *nb);
742int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
743
744#ifdef CONFIG_ACPI_GTDT
745int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
746int acpi_gtdt_map_ppi(int type);
747bool acpi_gtdt_c3stop(int type);
748int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
749#endif
750
751#ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
752static inline void acpi_arch_set_root_pointer(u64 addr)
753{
754}
755#endif
756
757#ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
758static inline u64 acpi_arch_get_root_pointer(void)
759{
760 return 0;
761}
762#endif
763
764int acpi_get_local_address(acpi_handle handle, u32 *addr);
765const char *acpi_get_subsystem_id(acpi_handle handle);
766
767#else /* !CONFIG_ACPI */
768
769#define acpi_disabled 1
770
771#define ACPI_COMPANION(dev) (NULL)
772#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
773#define ACPI_HANDLE(dev) (NULL)
774#define ACPI_HANDLE_FWNODE(fwnode) (NULL)
775
776/* Get rid of the -Wunused-variable for adev */
777#define acpi_dev_uid_match(adev, uid2) (adev && false)
778#define acpi_dev_hid_uid_match(adev, hid2, uid2) (adev && false)
779
780#include <acpi/acpi_numa.h>
781
782struct fwnode_handle;
783
784static inline bool acpi_dev_found(const char *hid)
785{
786 return false;
787}
788
789static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
790{
791 return false;
792}
793
794struct acpi_device;
795
796static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
797{
798 return -ENODEV;
799}
800
801static inline struct acpi_device *
802acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
803{
804 return NULL;
805}
806
807static inline bool acpi_reduced_hardware(void)
808{
809 return false;
810}
811
812static inline void acpi_dev_put(struct acpi_device *adev) {}
813
814static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
815{
816 return false;
817}
818
819static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
820{
821 return false;
822}
823
824static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
825{
826 return NULL;
827}
828
829static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
830{
831 return false;
832}
833
834static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
835{
836 return NULL;
837}
838
839static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
840 const char *name)
841{
842 return false;
843}
844
845static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
846{
847 return NULL;
848}
849
850static inline bool has_acpi_companion(struct device *dev)
851{
852 return false;
853}
854
855static inline void acpi_preset_companion(struct device *dev,
856 struct acpi_device *parent, u64 addr)
857{
858}
859
860static inline const char *acpi_dev_name(struct acpi_device *adev)
861{
862 return NULL;
863}
864
865static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
866{
867 return NULL;
868}
869
870static inline void acpi_early_init(void) { }
871static inline void acpi_subsystem_init(void) { }
872
873static inline int early_acpi_boot_init(void)
874{
875 return 0;
876}
877static inline int acpi_boot_init(void)
878{
879 return 0;
880}
881
882static inline void acpi_boot_table_prepare(void)
883{
884}
885
886static inline void acpi_boot_table_init(void)
887{
888}
889
890static inline int acpi_mps_check(void)
891{
892 return 0;
893}
894
895static inline int acpi_check_resource_conflict(struct resource *res)
896{
897 return 0;
898}
899
900static inline int acpi_check_region(resource_size_t start, resource_size_t n,
901 const char *name)
902{
903 return 0;
904}
905
906struct acpi_table_header;
907static inline int acpi_table_parse(char *id,
908 int (*handler)(struct acpi_table_header *))
909{
910 return -ENODEV;
911}
912
913static inline int acpi_nvs_register(__u64 start, __u64 size)
914{
915 return 0;
916}
917
918static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
919 void *data)
920{
921 return 0;
922}
923
924struct acpi_device_id;
925
926static inline const struct acpi_device_id *acpi_match_acpi_device(
927 const struct acpi_device_id *ids, const struct acpi_device *adev)
928{
929 return NULL;
930}
931
932static inline const struct acpi_device_id *acpi_match_device(
933 const struct acpi_device_id *ids, const struct device *dev)
934{
935 return NULL;
936}
937
938static inline const void *acpi_device_get_match_data(const struct device *dev)
939{
940 return NULL;
941}
942
943static inline bool acpi_driver_match_device(struct device *dev,
944 const struct device_driver *drv)
945{
946 return false;
947}
948
949static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid,
950 u64 rev, u64 funcs)
951{
952 return false;
953}
954
955static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
956 const guid_t *guid,
957 u64 rev, u64 func,
958 union acpi_object *argv4)
959{
960 return NULL;
961}
962
963static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle,
964 const guid_t *guid,
965 u64 rev, u64 func,
966 union acpi_object *argv4,
967 acpi_object_type type)
968{
969 return NULL;
970}
971
972static inline int acpi_device_uevent_modalias(const struct device *dev,
973 struct kobj_uevent_env *env)
974{
975 return -ENODEV;
976}
977
978static inline int acpi_device_modalias(struct device *dev,
979 char *buf, int size)
980{
981 return -ENODEV;
982}
983
984static inline struct platform_device *
985acpi_create_platform_device(struct acpi_device *adev,
986 const struct property_entry *properties)
987{
988 return NULL;
989}
990
991static inline bool acpi_dma_supported(const struct acpi_device *adev)
992{
993 return false;
994}
995
996static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
997{
998 return DEV_DMA_NOT_SUPPORTED;
999}
1000
1001static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
1002{
1003 return -ENODEV;
1004}
1005
1006static inline int acpi_dma_configure(struct device *dev,
1007 enum dev_dma_attr attr)
1008{
1009 return 0;
1010}
1011
1012static inline int acpi_dma_configure_id(struct device *dev,
1013 enum dev_dma_attr attr,
1014 const u32 *input_id)
1015{
1016 return 0;
1017}
1018
1019#define ACPI_PTR(_ptr) (NULL)
1020
1021static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1022{
1023}
1024
1025static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1026{
1027}
1028
1029static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1030{
1031 return -EINVAL;
1032}
1033
1034static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1035{
1036 return -EINVAL;
1037}
1038
1039static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1040{
1041 return NULL;
1042}
1043
1044static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1045{
1046 return -ENODEV;
1047}
1048
1049static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1050{
1051 return ERR_PTR(-ENODEV);
1052}
1053
1054static inline int acpi_register_wakeup_handler(int wake_irq,
1055 bool (*wakeup)(void *context), void *context)
1056{
1057 return -ENXIO;
1058}
1059
1060static inline void acpi_unregister_wakeup_handler(
1061 bool (*wakeup)(void *context), void *context) { }
1062
1063struct acpi_osc_context;
1064static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1065{
1066 return 0;
1067}
1068
1069static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1070{
1071 return 0;
1072}
1073
1074static inline bool acpi_sleep_state_supported(u8 sleep_state)
1075{
1076 return false;
1077}
1078
1079#endif /* !CONFIG_ACPI */
1080
1081extern void arch_post_acpi_subsys_init(void);
1082
1083#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1084int acpi_ioapic_add(acpi_handle root);
1085#else
1086static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1087#endif
1088
1089#ifdef CONFIG_ACPI
1090void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1091 u32 pm1a_ctrl, u32 pm1b_ctrl));
1092
1093acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1094 u32 pm1a_control, u32 pm1b_control);
1095
1096void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1097 u32 val_a, u32 val_b));
1098
1099acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1100 u32 val_a, u32 val_b);
1101#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
1102struct acpi_s2idle_dev_ops {
1103 struct list_head list_node;
1104 void (*prepare)(void);
1105 void (*check)(void);
1106 void (*restore)(void);
1107};
1108int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1109void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1110int acpi_get_lps0_constraint(struct acpi_device *adev);
1111#else /* CONFIG_SUSPEND && CONFIG_X86 */
1112static inline int acpi_get_lps0_constraint(struct device *dev)
1113{
1114 return ACPI_STATE_UNKNOWN;
1115}
1116#endif /* CONFIG_SUSPEND && CONFIG_X86 */
1117void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1118#else
1119#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1120#endif
1121
1122#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1123int acpi_dev_suspend(struct device *dev, bool wakeup);
1124int acpi_dev_resume(struct device *dev);
1125int acpi_subsys_runtime_suspend(struct device *dev);
1126int acpi_subsys_runtime_resume(struct device *dev);
1127int acpi_dev_pm_attach(struct device *dev, bool power_on);
1128bool acpi_storage_d3(struct device *dev);
1129bool acpi_dev_state_d0(struct device *dev);
1130#else
1131static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
1132static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
1133static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1134{
1135 return 0;
1136}
1137static inline bool acpi_storage_d3(struct device *dev)
1138{
1139 return false;
1140}
1141static inline bool acpi_dev_state_d0(struct device *dev)
1142{
1143 return true;
1144}
1145#endif
1146
1147#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1148int acpi_subsys_prepare(struct device *dev);
1149void acpi_subsys_complete(struct device *dev);
1150int acpi_subsys_suspend_late(struct device *dev);
1151int acpi_subsys_suspend_noirq(struct device *dev);
1152int acpi_subsys_suspend(struct device *dev);
1153int acpi_subsys_freeze(struct device *dev);
1154int acpi_subsys_poweroff(struct device *dev);
1155void acpi_ec_mark_gpe_for_wake(void);
1156void acpi_ec_set_gpe_wake_mask(u8 action);
1157int acpi_subsys_restore_early(struct device *dev);
1158#else
1159static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1160static inline void acpi_subsys_complete(struct device *dev) {}
1161static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1162static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1163static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1164static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1165static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1166static inline int acpi_subsys_restore_early(struct device *dev) { return 0; }
1167static inline void acpi_ec_mark_gpe_for_wake(void) {}
1168static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1169#endif
1170
1171#ifdef CONFIG_ACPI
1172char *acpi_handle_path(acpi_handle handle);
1173__printf(3, 4)
1174void acpi_handle_printk(const char *level, acpi_handle handle,
1175 const char *fmt, ...);
1176void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1177 acpi_status status);
1178#else /* !CONFIG_ACPI */
1179static inline __printf(3, 4) void
1180acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1181static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1182 const char *name,
1183 acpi_status status) {}
1184#endif /* !CONFIG_ACPI */
1185
1186#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1187__printf(3, 4)
1188void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1189#endif
1190
1191/*
1192 * acpi_handle_<level>: Print message with ACPI prefix and object path
1193 *
1194 * These interfaces acquire the global namespace mutex to obtain an object
1195 * path. In interrupt context, it shows the object path as <n/a>.
1196 */
1197#define acpi_handle_emerg(handle, fmt, ...) \
1198 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1199#define acpi_handle_alert(handle, fmt, ...) \
1200 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1201#define acpi_handle_crit(handle, fmt, ...) \
1202 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1203#define acpi_handle_err(handle, fmt, ...) \
1204 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1205#define acpi_handle_warn(handle, fmt, ...) \
1206 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1207#define acpi_handle_notice(handle, fmt, ...) \
1208 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1209#define acpi_handle_info(handle, fmt, ...) \
1210 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1211
1212#if defined(DEBUG)
1213#define acpi_handle_debug(handle, fmt, ...) \
1214 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1215#else
1216#if defined(CONFIG_DYNAMIC_DEBUG)
1217#define acpi_handle_debug(handle, fmt, ...) \
1218 _dynamic_func_call(fmt, __acpi_handle_debug, \
1219 handle, pr_fmt(fmt), ##__VA_ARGS__)
1220#else
1221#define acpi_handle_debug(handle, fmt, ...) \
1222({ \
1223 if (0) \
1224 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1225 0; \
1226})
1227#endif
1228#endif
1229
1230#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1231bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1232 struct acpi_resource_gpio **agpio);
1233bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1234 struct acpi_resource_gpio **agpio);
1235int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, int index,
1236 bool *wake_capable);
1237#else
1238static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1239 struct acpi_resource_gpio **agpio)
1240{
1241 return false;
1242}
1243static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1244 struct acpi_resource_gpio **agpio)
1245{
1246 return false;
1247}
1248static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id,
1249 int index, bool *wake_capable)
1250{
1251 return -ENXIO;
1252}
1253#endif
1254
1255static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1256 bool *wake_capable)
1257{
1258 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1259}
1260
1261static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *con_id,
1262 int index)
1263{
1264 return acpi_dev_gpio_irq_wake_get_by(adev, con_id, index, NULL);
1265}
1266
1267static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1268{
1269 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1270}
1271
1272/* Device properties */
1273
1274#ifdef CONFIG_ACPI
1275int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1276 acpi_object_type type, const union acpi_object **obj);
1277int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1278 const char *name, size_t index, size_t num_args,
1279 struct fwnode_reference_args *args);
1280
1281static inline int acpi_node_get_property_reference(
1282 const struct fwnode_handle *fwnode,
1283 const char *name, size_t index,
1284 struct fwnode_reference_args *args)
1285{
1286 return __acpi_node_get_property_reference(fwnode, name, index,
1287 NR_FWNODE_REFERENCE_ARGS, args);
1288}
1289
1290static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1291{
1292 return !list_empty(&adev->data.properties);
1293}
1294
1295struct acpi_device_properties *
1296acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1297 union acpi_object *properties);
1298
1299int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1300 void **valptr);
1301
1302struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1303 struct fwnode_handle *child);
1304
1305struct acpi_probe_entry;
1306typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1307 struct acpi_probe_entry *);
1308
1309#define ACPI_TABLE_ID_LEN 5
1310
1311/**
1312 * struct acpi_probe_entry - boot-time probing entry
1313 * @id: ACPI table name
1314 * @type: Optional subtable type to match
1315 * (if @id contains subtables)
1316 * @subtable_valid: Optional callback to check the validity of
1317 * the subtable
1318 * @probe_table: Callback to the driver being probed when table
1319 * match is successful
1320 * @probe_subtbl: Callback to the driver being probed when table and
1321 * subtable match (and optional callback is successful)
1322 * @driver_data: Sideband data provided back to the driver
1323 */
1324struct acpi_probe_entry {
1325 __u8 id[ACPI_TABLE_ID_LEN];
1326 __u8 type;
1327 acpi_probe_entry_validate_subtbl subtable_valid;
1328 union {
1329 acpi_tbl_table_handler probe_table;
1330 acpi_tbl_entry_handler probe_subtbl;
1331 };
1332 kernel_ulong_t driver_data;
1333};
1334
1335#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1336 valid, data, fn) \
1337 static const struct acpi_probe_entry __acpi_probe_##name \
1338 __used __section("__" #table "_acpi_probe_table") = { \
1339 .id = table_id, \
1340 .type = subtable, \
1341 .subtable_valid = valid, \
1342 .probe_table = fn, \
1343 .driver_data = data, \
1344 }
1345
1346#define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1347 subtable, valid, data, fn) \
1348 static const struct acpi_probe_entry __acpi_probe_##name \
1349 __used __section("__" #table "_acpi_probe_table") = { \
1350 .id = table_id, \
1351 .type = subtable, \
1352 .subtable_valid = valid, \
1353 .probe_subtbl = fn, \
1354 .driver_data = data, \
1355 }
1356
1357#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1358#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1359
1360int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1361
1362#define acpi_probe_device_table(t) \
1363 ({ \
1364 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1365 ACPI_PROBE_TABLE_END(t); \
1366 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1367 (&ACPI_PROBE_TABLE_END(t) - \
1368 &ACPI_PROBE_TABLE(t))); \
1369 })
1370#else
1371static inline int acpi_dev_get_property(struct acpi_device *adev,
1372 const char *name, acpi_object_type type,
1373 const union acpi_object **obj)
1374{
1375 return -ENXIO;
1376}
1377
1378static inline int
1379__acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1380 const char *name, size_t index, size_t num_args,
1381 struct fwnode_reference_args *args)
1382{
1383 return -ENXIO;
1384}
1385
1386static inline int
1387acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1388 const char *name, size_t index,
1389 struct fwnode_reference_args *args)
1390{
1391 return -ENXIO;
1392}
1393
1394static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1395 const char *propname,
1396 void **valptr)
1397{
1398 return -ENXIO;
1399}
1400
1401static inline struct fwnode_handle *
1402acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1403 struct fwnode_handle *child)
1404{
1405 return NULL;
1406}
1407
1408static inline struct fwnode_handle *
1409acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1410 struct fwnode_handle *prev)
1411{
1412 return ERR_PTR(-ENXIO);
1413}
1414
1415static inline int
1416acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1417 struct fwnode_handle **remote,
1418 struct fwnode_handle **port,
1419 struct fwnode_handle **endpoint)
1420{
1421 return -ENXIO;
1422}
1423
1424#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1425 static const void * __acpi_table_##name[] \
1426 __attribute__((unused)) \
1427 = { (void *) table_id, \
1428 (void *) subtable, \
1429 (void *) valid, \
1430 (void *) fn, \
1431 (void *) data }
1432
1433#define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1434#endif
1435
1436#ifdef CONFIG_ACPI_TABLE_UPGRADE
1437void acpi_table_upgrade(void);
1438#else
1439static inline void acpi_table_upgrade(void) { }
1440#endif
1441
1442#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1443extern bool acpi_has_watchdog(void);
1444#else
1445static inline bool acpi_has_watchdog(void) { return false; }
1446#endif
1447
1448#ifdef CONFIG_ACPI_SPCR_TABLE
1449extern bool qdf2400_e44_present;
1450int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1451#else
1452static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1453{
1454 return 0;
1455}
1456#endif
1457
1458#if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1459int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1460#else
1461static inline
1462int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1463{
1464 return -EINVAL;
1465}
1466#endif
1467
1468#ifdef CONFIG_ACPI_LPIT
1469int lpit_read_residency_count_address(u64 *address);
1470#else
1471static inline int lpit_read_residency_count_address(u64 *address)
1472{
1473 return -EINVAL;
1474}
1475#endif
1476
1477#ifdef CONFIG_ACPI_PROCESSOR_IDLE
1478#ifndef arch_get_idle_state_flags
1479static inline unsigned int arch_get_idle_state_flags(u32 arch_flags)
1480{
1481 return 0;
1482}
1483#endif
1484#endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1485
1486#ifdef CONFIG_ACPI_PPTT
1487int acpi_pptt_cpu_is_thread(unsigned int cpu);
1488int find_acpi_cpu_topology(unsigned int cpu, int level);
1489int find_acpi_cpu_topology_cluster(unsigned int cpu);
1490int find_acpi_cpu_topology_package(unsigned int cpu);
1491int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1492#else
1493static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1494{
1495 return -EINVAL;
1496}
1497static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1498{
1499 return -EINVAL;
1500}
1501static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1502{
1503 return -EINVAL;
1504}
1505static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1506{
1507 return -EINVAL;
1508}
1509static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1510{
1511 return -EINVAL;
1512}
1513#endif
1514
1515#ifdef CONFIG_ARM64
1516void acpi_arm_init(void);
1517#else
1518static inline void acpi_arm_init(void) { }
1519#endif
1520
1521#ifdef CONFIG_ACPI_PCC
1522void acpi_init_pcc(void);
1523#else
1524static inline void acpi_init_pcc(void) { }
1525#endif
1526
1527#ifdef CONFIG_ACPI_FFH
1528void acpi_init_ffh(void);
1529extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt,
1530 void **region_ctxt);
1531extern int acpi_ffh_address_space_arch_handler(acpi_integer *value,
1532 void *region_context);
1533#else
1534static inline void acpi_init_ffh(void) { }
1535#endif
1536
1537#ifdef CONFIG_ACPI
1538extern void acpi_device_notify(struct device *dev);
1539extern void acpi_device_notify_remove(struct device *dev);
1540#else
1541static inline void acpi_device_notify(struct device *dev) { }
1542static inline void acpi_device_notify_remove(struct device *dev) { }
1543#endif
1544
1545static inline void acpi_use_parent_companion(struct device *dev)
1546{
1547 ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent));
1548}
1549
1550#ifdef CONFIG_ACPI_HMAT
1551int hmat_update_target_coordinates(int nid, struct access_coordinate *coord,
1552 enum access_coordinate_class access);
1553#else
1554static inline int hmat_update_target_coordinates(int nid,
1555 struct access_coordinate *coord,
1556 enum access_coordinate_class access)
1557{
1558 return -EOPNOTSUPP;
1559}
1560#endif
1561
1562#ifdef CONFIG_ACPI_NUMA
1563bool acpi_node_backed_by_real_pxm(int nid);
1564#else
1565static inline bool acpi_node_backed_by_real_pxm(int nid)
1566{
1567 return false;
1568}
1569#endif
1570
1571#endif /*_LINUX_ACPI_H*/