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
20 struct irq_domain;
21 struct irq_domain_ops;
22
23 #ifndef _LINUX
24 #define _LINUX
25 #endif
26 #include <acpi/acpi.h>
27 #include <acpi/acpi_numa.h>
28
29 #ifdef CONFIG_ACPI
30
31 #include <linux/list.h>
32 #include <linux/dynamic_debug.h>
33 #include <linux/module.h>
34 #include <linux/mutex.h>
35 #include <linux/fw_table.h>
36
37 #include <acpi/acpi_bus.h>
38 #include <acpi/acpi_drivers.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
52 static 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
64 static 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
77 static 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
85 static inline bool has_acpi_companion(struct device *dev)
86 {
87 return is_acpi_device_node(dev->fwnode);
88 }
89
90 static 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
96 static inline const char *acpi_dev_name(struct acpi_device *adev)
97 {
98 return dev_name(&adev->dev);
99 }
100
101 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
102
103 enum 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
113 extern enum acpi_irq_model_id acpi_irq_model;
114
115 enum 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
124 enum 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 */
134 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
135
136 /* Debugger support */
137
138 struct 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
146 struct acpi_debugger {
147 const struct acpi_debugger_ops *ops;
148 struct module *owner;
149 struct mutex lock;
150 };
151
152 #ifdef CONFIG_ACPI_DEBUGGER
153 int __init acpi_debugger_init(void);
154 int acpi_register_debugger(struct module *owner,
155 const struct acpi_debugger_ops *ops);
156 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
157 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
158 ssize_t acpi_debugger_write_log(const char *msg);
159 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
160 int acpi_debugger_wait_command_ready(void);
161 int acpi_debugger_notify_command_complete(void);
162 #else
163 static inline int acpi_debugger_init(void)
164 {
165 return -ENODEV;
166 }
167
168 static inline int acpi_register_debugger(struct module *owner,
169 const struct acpi_debugger_ops *ops)
170 {
171 return -ENODEV;
172 }
173
174 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
175 {
176 }
177
178 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
179 void *context)
180 {
181 return -ENODEV;
182 }
183
184 static inline int acpi_debugger_write_log(const char *msg)
185 {
186 return -ENODEV;
187 }
188
189 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
190 {
191 return -ENODEV;
192 }
193
194 static inline int acpi_debugger_wait_command_ready(void)
195 {
196 return -ENODEV;
197 }
198
199 static 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
209 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
210 void __acpi_unmap_table(void __iomem *map, unsigned long size);
211 int early_acpi_boot_init(void);
212 int acpi_boot_init (void);
213 void acpi_boot_table_prepare (void);
214 void acpi_boot_table_init (void);
215 int acpi_mps_check (void);
216 int acpi_numa_init (void);
217
218 int acpi_locate_initial_tables (void);
219 void acpi_reserve_initial_tables (void);
220 void acpi_table_init_complete (void);
221 int acpi_table_init (void);
222
223 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
224 int __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);
227 int __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);
230 int acpi_table_parse_madt(enum acpi_madt_type id,
231 acpi_tbl_entry_handler handler,
232 unsigned int max_entries);
233 int __init_or_acpilib
234 acpi_table_parse_cedt(enum acpi_cedt_type id,
235 acpi_tbl_entry_handler_arg handler_arg, void *arg);
236
237 int acpi_parse_mcfg (struct acpi_table_header *header);
238 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
239
240 #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
241 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
242 #else
243 static inline void
244 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
245 #endif
246
247 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
248
249 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
250 void acpi_arch_dma_setup(struct device *dev);
251 #else
252 static inline void acpi_arch_dma_setup(struct device *dev) { }
253 #endif
254
255 #ifdef CONFIG_ARM64
256 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
257 #else
258 static inline void
259 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
260 #endif
261
262 #ifdef CONFIG_RISCV
263 void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa);
264 #else
265 static inline void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa) { }
266 #endif
267
268 #ifndef PHYS_CPUID_INVALID
269 typedef u32 phys_cpuid_t;
270 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
271 #endif
272
273 static inline bool invalid_logical_cpuid(u32 cpuid)
274 {
275 return (int)cpuid < 0;
276 }
277
278 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
279 {
280 return phys_id == PHYS_CPUID_INVALID;
281 }
282
283
284 int __init acpi_get_madt_revision(void);
285
286 /* Validate the processor object's proc_id */
287 bool acpi_duplicate_processor_id(int proc_id);
288 /* Processor _CTS control */
289 struct acpi_processor_power;
290
291 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
292 bool acpi_processor_claim_cst_control(void);
293 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
294 struct acpi_processor_power *info);
295 #else
296 static inline bool acpi_processor_claim_cst_control(void) { return false; }
297 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
298 struct acpi_processor_power *info)
299 {
300 return -ENODEV;
301 }
302 #endif
303
304 #ifdef CONFIG_ACPI_HOTPLUG_CPU
305 /* Arch dependent functions for cpu hotplug support */
306 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
307 int *pcpu);
308 int acpi_unmap_cpu(int cpu);
309 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
310
311 acpi_handle acpi_get_processor_handle(int cpu);
312
313 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
314 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
315 #endif
316
317 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
318 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
319 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
320 void acpi_irq_stats_init(void);
321 extern u32 acpi_irq_handled;
322 extern u32 acpi_irq_not_handled;
323 extern unsigned int acpi_sci_irq;
324 extern bool acpi_no_s5;
325 #define INVALID_ACPI_IRQ ((unsigned)-1)
326 static inline bool acpi_sci_irq_valid(void)
327 {
328 return acpi_sci_irq != INVALID_ACPI_IRQ;
329 }
330
331 extern int sbf_port;
332 extern unsigned long acpi_realmode_flags;
333
334 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
335 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
336 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
337
338 void acpi_set_irq_model(enum acpi_irq_model_id model,
339 struct fwnode_handle *(*)(u32));
340 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32));
341
342 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
343 unsigned int size,
344 struct fwnode_handle *fwnode,
345 const struct irq_domain_ops *ops,
346 void *host_data);
347
348 #ifdef CONFIG_X86_IO_APIC
349 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
350 #else
351 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
352 {
353 return -1;
354 }
355 #endif
356 /*
357 * This function undoes the effect of one call to acpi_register_gsi().
358 * If this matches the last registration, any IRQ resources for gsi
359 * are freed.
360 */
361 void acpi_unregister_gsi (u32 gsi);
362
363 struct pci_dev;
364
365 int acpi_pci_irq_enable (struct pci_dev *dev);
366 void acpi_penalize_isa_irq(int irq, int active);
367 bool acpi_isa_irq_available(int irq);
368 #ifdef CONFIG_PCI
369 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
370 #else
371 static inline void acpi_penalize_sci_irq(int irq, int trigger,
372 int polarity)
373 {
374 }
375 #endif
376 void acpi_pci_irq_disable (struct pci_dev *dev);
377
378 extern int ec_read(u8 addr, u8 *val);
379 extern int ec_write(u8 addr, u8 val);
380 extern int ec_transaction(u8 command,
381 const u8 *wdata, unsigned wdata_len,
382 u8 *rdata, unsigned rdata_len);
383 extern acpi_handle ec_get_handle(void);
384
385 extern bool acpi_is_pnp_device(struct acpi_device *);
386
387 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
388
389 typedef void (*wmi_notify_handler) (u32 value, void *context);
390
391 int wmi_instance_count(const char *guid);
392
393 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
394 u32 method_id,
395 const struct acpi_buffer *in,
396 struct acpi_buffer *out);
397 extern acpi_status wmi_query_block(const char *guid, u8 instance,
398 struct acpi_buffer *out);
399 extern acpi_status wmi_set_block(const char *guid, u8 instance,
400 const struct acpi_buffer *in);
401 extern acpi_status wmi_install_notify_handler(const char *guid,
402 wmi_notify_handler handler, void *data);
403 extern acpi_status wmi_remove_notify_handler(const char *guid);
404 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
405 extern bool wmi_has_guid(const char *guid);
406 extern char *wmi_get_acpi_device_uid(const char *guid);
407
408 #endif /* CONFIG_ACPI_WMI */
409
410 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
411 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
412 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
413 #define ACPI_VIDEO_BACKLIGHT 0x0008
414 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
415 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
416 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
417 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
418 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
419 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
420 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
421 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
422
423 extern char acpi_video_backlight_string[];
424 extern long acpi_is_video_device(acpi_handle handle);
425
426 extern void acpi_osi_setup(char *str);
427 extern bool acpi_osi_is_win8(void);
428
429 #ifdef CONFIG_ACPI_THERMAL_LIB
430 int thermal_acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
431 int thermal_acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
432 int thermal_acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
433 int thermal_acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
434 #endif
435
436 #ifdef CONFIG_ACPI_HMAT
437 int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord);
438 #else
439 static inline int acpi_get_genport_coordinates(u32 uid,
440 struct access_coordinate *coord)
441 {
442 return -EOPNOTSUPP;
443 }
444 #endif
445
446 #ifdef CONFIG_ACPI_NUMA
447 int acpi_map_pxm_to_node(int pxm);
448 int acpi_get_node(acpi_handle handle);
449
450 /**
451 * pxm_to_online_node - Map proximity ID to online node
452 * @pxm: ACPI proximity ID
453 *
454 * This is similar to pxm_to_node(), but always returns an online
455 * node. When the mapped node from a given proximity ID is offline, it
456 * looks up the node distance table and returns the nearest online node.
457 *
458 * ACPI device drivers, which are called after the NUMA initialization has
459 * completed in the kernel, can call this interface to obtain their device
460 * NUMA topology from ACPI tables. Such drivers do not have to deal with
461 * offline nodes. A node may be offline when SRAT memory entry does not exist,
462 * or NUMA is disabled, ex. "numa=off" on x86.
463 */
464 static inline int pxm_to_online_node(int pxm)
465 {
466 int node = pxm_to_node(pxm);
467
468 return numa_map_to_online_node(node);
469 }
470 #else
471 static inline int pxm_to_online_node(int pxm)
472 {
473 return 0;
474 }
475 static inline int acpi_map_pxm_to_node(int pxm)
476 {
477 return 0;
478 }
479 static inline int acpi_get_node(acpi_handle handle)
480 {
481 return 0;
482 }
483 #endif
484 extern int pnpacpi_disabled;
485
486 #define PXM_INVAL (-1)
487
488 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
489 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
490 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
491 struct resource_win *win);
492 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
493 struct resource_win *win);
494 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
495 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
496 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
497 struct resource *res);
498
499 void acpi_dev_free_resource_list(struct list_head *list);
500 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
501 int (*preproc)(struct acpi_resource *, void *),
502 void *preproc_data);
503 int acpi_dev_get_dma_resources(struct acpi_device *adev,
504 struct list_head *list);
505 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
506 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
507 unsigned long types);
508
509 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
510 void *arg)
511 {
512 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
513 }
514
515 struct acpi_device *acpi_resource_consumer(struct resource *res);
516
517 int acpi_check_resource_conflict(const struct resource *res);
518
519 int acpi_check_region(resource_size_t start, resource_size_t n,
520 const char *name);
521
522 int acpi_resources_are_enforced(void);
523
524 #ifdef CONFIG_HIBERNATION
525 extern int acpi_check_s4_hw_signature;
526 #endif
527
528 #ifdef CONFIG_PM_SLEEP
529 void __init acpi_old_suspend_ordering(void);
530 void __init acpi_nvs_nosave(void);
531 void __init acpi_nvs_nosave_s3(void);
532 void __init acpi_sleep_no_blacklist(void);
533 #endif /* CONFIG_PM_SLEEP */
534
535 int acpi_register_wakeup_handler(
536 int wake_irq, bool (*wakeup)(void *context), void *context);
537 void acpi_unregister_wakeup_handler(
538 bool (*wakeup)(void *context), void *context);
539
540 struct acpi_osc_context {
541 char *uuid_str; /* UUID string */
542 int rev;
543 struct acpi_buffer cap; /* list of DWORD capabilities */
544 struct acpi_buffer ret; /* free by caller if success */
545 };
546
547 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
548
549 /* Number of _OSC capability DWORDS depends on bridge type */
550 #define OSC_PCI_CAPABILITY_DWORDS 3
551 #define OSC_CXL_CAPABILITY_DWORDS 5
552
553 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
554 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
555 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
556 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
557 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */
558 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */
559
560 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
561 #define OSC_QUERY_ENABLE 0x00000001 /* input */
562 #define OSC_REQUEST_ERROR 0x00000002 /* return */
563 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
564 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
565 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
566
567 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
568 #define OSC_SB_PAD_SUPPORT 0x00000001
569 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
570 #define OSC_SB_PR3_SUPPORT 0x00000004
571 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
572 #define OSC_SB_APEI_SUPPORT 0x00000010
573 #define OSC_SB_CPC_SUPPORT 0x00000020
574 #define OSC_SB_CPCV2_SUPPORT 0x00000040
575 #define OSC_SB_PCLPI_SUPPORT 0x00000080
576 #define OSC_SB_OSLPI_SUPPORT 0x00000100
577 #define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200
578 #define OSC_SB_OVER_16_PSTATES_SUPPORT 0x00000400
579 #define OSC_SB_GED_SUPPORT 0x00000800
580 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
581 #define OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT 0x00002000
582 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000
583 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00020000
584 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
585 #define OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT 0x00080000
586 #define OSC_SB_PRM_SUPPORT 0x00200000
587 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000
588
589 extern bool osc_sb_apei_support_acked;
590 extern bool osc_pc_lpi_support_confirmed;
591 extern bool osc_sb_native_usb4_support_confirmed;
592 extern bool osc_sb_cppc2_support_acked;
593 extern bool osc_cpc_flexible_adr_space_confirmed;
594
595 /* USB4 Capabilities */
596 #define OSC_USB_USB3_TUNNELING 0x00000001
597 #define OSC_USB_DP_TUNNELING 0x00000002
598 #define OSC_USB_PCIE_TUNNELING 0x00000004
599 #define OSC_USB_XDOMAIN 0x00000008
600
601 extern u32 osc_sb_native_usb4_control;
602
603 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
604 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
605 #define OSC_PCI_ASPM_SUPPORT 0x00000002
606 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
607 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
608 #define OSC_PCI_MSI_SUPPORT 0x00000010
609 #define OSC_PCI_EDR_SUPPORT 0x00000080
610 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
611
612 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
613 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
614 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
615 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
616 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
617 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
618 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
619 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
620
621 /* CXL _OSC: Capabilities DWORD 4: Support Field */
622 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001
623 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002
624 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004
625 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008
626
627 /* CXL _OSC: Capabilities DWORD 5: Control Field */
628 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001
629
630 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
631 {
632 u32 *ret = context->ret.pointer;
633
634 return ret[OSC_CONTROL_DWORD];
635 }
636
637 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
638 {
639 u32 *ret = context->ret.pointer;
640
641 return ret[OSC_EXT_CONTROL_DWORD];
642 }
643
644 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
645 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
646 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
647 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
648 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
649 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
650 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
651 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
652 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
653 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
654
655 /* Enable _OST when all relevant hotplug operations are enabled */
656 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
657 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
658 defined(CONFIG_ACPI_CONTAINER)
659 #define ACPI_HOTPLUG_OST
660 #endif
661
662 /* _OST Source Event Code (OSPM Action) */
663 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
664 #define ACPI_OST_EC_OSPM_EJECT 0x103
665 #define ACPI_OST_EC_OSPM_INSERTION 0x200
666
667 /* _OST General Processing Status Code */
668 #define ACPI_OST_SC_SUCCESS 0x0
669 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
670 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
671
672 /* _OST OS Shutdown Processing (0x100) Status Code */
673 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
674 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
675 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
676 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
677
678 /* _OST Ejection Request (0x3, 0x103) Status Code */
679 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
680 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
681 #define ACPI_OST_SC_DEVICE_BUSY 0x82
682 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
683 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
684
685 /* _OST Insertion Request (0x200) Status Code */
686 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
687 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
688 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
689
690 enum acpi_predicate {
691 all_versions,
692 less_than_or_equal,
693 equal,
694 greater_than_or_equal,
695 };
696
697 /* Table must be terminted by a NULL entry */
698 struct acpi_platform_list {
699 char oem_id[ACPI_OEM_ID_SIZE+1];
700 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
701 u32 oem_revision;
702 char *table;
703 enum acpi_predicate pred;
704 char *reason;
705 u32 data;
706 };
707 int acpi_match_platform_list(const struct acpi_platform_list *plat);
708
709 extern void acpi_early_init(void);
710 extern void acpi_subsystem_init(void);
711
712 extern int acpi_nvs_register(__u64 start, __u64 size);
713
714 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
715 void *data);
716
717 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids,
718 const struct acpi_device *adev);
719
720 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
721 const struct device *dev);
722
723 const void *acpi_device_get_match_data(const struct device *dev);
724 extern bool acpi_driver_match_device(struct device *dev,
725 const struct device_driver *drv);
726 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *);
727 int acpi_device_modalias(struct device *, char *, int);
728
729 struct platform_device *acpi_create_platform_device(struct acpi_device *,
730 const struct property_entry *);
731 #define ACPI_PTR(_ptr) (_ptr)
732
733 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
734 {
735 adev->flags.visited = true;
736 }
737
738 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
739 {
740 adev->flags.visited = false;
741 }
742
743 enum acpi_reconfig_event {
744 ACPI_RECONFIG_DEVICE_ADD = 0,
745 ACPI_RECONFIG_DEVICE_REMOVE,
746 };
747
748 int acpi_reconfig_notifier_register(struct notifier_block *nb);
749 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
750
751 #ifdef CONFIG_ACPI_GTDT
752 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
753 int acpi_gtdt_map_ppi(int type);
754 bool acpi_gtdt_c3stop(int type);
755 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
756 #endif
757
758 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
759 static inline void acpi_arch_set_root_pointer(u64 addr)
760 {
761 }
762 #endif
763
764 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
765 static inline u64 acpi_arch_get_root_pointer(void)
766 {
767 return 0;
768 }
769 #endif
770
771 int acpi_get_local_u64_address(acpi_handle handle, u64 *addr);
772 int acpi_get_local_address(acpi_handle handle, u32 *addr);
773 const char *acpi_get_subsystem_id(acpi_handle handle);
774
775 #else /* !CONFIG_ACPI */
776
777 #define acpi_disabled 1
778
779 #define ACPI_COMPANION(dev) (NULL)
780 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
781 #define ACPI_HANDLE(dev) (NULL)
782 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
783
784 /* Get rid of the -Wunused-variable for adev */
785 #define acpi_dev_uid_match(adev, uid2) (adev && false)
786 #define acpi_dev_hid_uid_match(adev, hid2, uid2) (adev && false)
787
788 struct fwnode_handle;
789
790 static inline bool acpi_dev_found(const char *hid)
791 {
792 return false;
793 }
794
795 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
796 {
797 return false;
798 }
799
800 struct acpi_device;
801
802 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
803 {
804 return -ENODEV;
805 }
806
807 static inline struct acpi_device *
808 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
809 {
810 return NULL;
811 }
812
813 static inline bool acpi_reduced_hardware(void)
814 {
815 return false;
816 }
817
818 static inline void acpi_dev_put(struct acpi_device *adev) {}
819
820 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
821 {
822 return false;
823 }
824
825 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
826 {
827 return false;
828 }
829
830 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
831 {
832 return NULL;
833 }
834
835 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
836 {
837 return false;
838 }
839
840 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
841 {
842 return NULL;
843 }
844
845 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
846 const char *name)
847 {
848 return false;
849 }
850
851 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
852 {
853 return NULL;
854 }
855
856 static inline bool has_acpi_companion(struct device *dev)
857 {
858 return false;
859 }
860
861 static inline void acpi_preset_companion(struct device *dev,
862 struct acpi_device *parent, u64 addr)
863 {
864 }
865
866 static inline const char *acpi_dev_name(struct acpi_device *adev)
867 {
868 return NULL;
869 }
870
871 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
872 {
873 return NULL;
874 }
875
876 static inline void acpi_early_init(void) { }
877 static inline void acpi_subsystem_init(void) { }
878
879 static inline int early_acpi_boot_init(void)
880 {
881 return 0;
882 }
883 static inline int acpi_boot_init(void)
884 {
885 return 0;
886 }
887
888 static inline void acpi_boot_table_prepare(void)
889 {
890 }
891
892 static inline void acpi_boot_table_init(void)
893 {
894 }
895
896 static inline int acpi_mps_check(void)
897 {
898 return 0;
899 }
900
901 static inline int acpi_check_resource_conflict(struct resource *res)
902 {
903 return 0;
904 }
905
906 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
907 const char *name)
908 {
909 return 0;
910 }
911
912 struct acpi_table_header;
913 static inline int acpi_table_parse(char *id,
914 int (*handler)(struct acpi_table_header *))
915 {
916 return -ENODEV;
917 }
918
919 static inline int acpi_nvs_register(__u64 start, __u64 size)
920 {
921 return 0;
922 }
923
924 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
925 void *data)
926 {
927 return 0;
928 }
929
930 struct acpi_device_id;
931
932 static inline const struct acpi_device_id *acpi_match_acpi_device(
933 const struct acpi_device_id *ids, const struct acpi_device *adev)
934 {
935 return NULL;
936 }
937
938 static inline const struct acpi_device_id *acpi_match_device(
939 const struct acpi_device_id *ids, const struct device *dev)
940 {
941 return NULL;
942 }
943
944 static inline const void *acpi_device_get_match_data(const struct device *dev)
945 {
946 return NULL;
947 }
948
949 static inline bool acpi_driver_match_device(struct device *dev,
950 const struct device_driver *drv)
951 {
952 return false;
953 }
954
955 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid,
956 u64 rev, u64 funcs)
957 {
958 return false;
959 }
960
961 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
962 const guid_t *guid,
963 u64 rev, u64 func,
964 union acpi_object *argv4)
965 {
966 return NULL;
967 }
968
969 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle,
970 const guid_t *guid,
971 u64 rev, u64 func,
972 union acpi_object *argv4,
973 acpi_object_type type)
974 {
975 return NULL;
976 }
977
978 static inline int acpi_device_uevent_modalias(const struct device *dev,
979 struct kobj_uevent_env *env)
980 {
981 return -ENODEV;
982 }
983
984 static inline int acpi_device_modalias(struct device *dev,
985 char *buf, int size)
986 {
987 return -ENODEV;
988 }
989
990 static inline struct platform_device *
991 acpi_create_platform_device(struct acpi_device *adev,
992 const struct property_entry *properties)
993 {
994 return NULL;
995 }
996
997 static inline bool acpi_dma_supported(const struct acpi_device *adev)
998 {
999 return false;
1000 }
1001
1002 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
1003 {
1004 return DEV_DMA_NOT_SUPPORTED;
1005 }
1006
1007 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
1008 {
1009 return -ENODEV;
1010 }
1011
1012 static inline int acpi_dma_configure(struct device *dev,
1013 enum dev_dma_attr attr)
1014 {
1015 return 0;
1016 }
1017
1018 static inline int acpi_dma_configure_id(struct device *dev,
1019 enum dev_dma_attr attr,
1020 const u32 *input_id)
1021 {
1022 return 0;
1023 }
1024
1025 #define ACPI_PTR(_ptr) (NULL)
1026
1027 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1028 {
1029 }
1030
1031 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1032 {
1033 }
1034
1035 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1036 {
1037 return -EINVAL;
1038 }
1039
1040 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1041 {
1042 return -EINVAL;
1043 }
1044
1045 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1046 {
1047 return NULL;
1048 }
1049
1050 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1051 {
1052 return -ENODEV;
1053 }
1054
1055 static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1056 {
1057 return ERR_PTR(-ENODEV);
1058 }
1059
1060 static inline int acpi_register_wakeup_handler(int wake_irq,
1061 bool (*wakeup)(void *context), void *context)
1062 {
1063 return -ENXIO;
1064 }
1065
1066 static inline void acpi_unregister_wakeup_handler(
1067 bool (*wakeup)(void *context), void *context) { }
1068
1069 struct acpi_osc_context;
1070 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1071 {
1072 return 0;
1073 }
1074
1075 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1076 {
1077 return 0;
1078 }
1079
1080 static inline bool acpi_sleep_state_supported(u8 sleep_state)
1081 {
1082 return false;
1083 }
1084
1085 static inline acpi_handle acpi_get_processor_handle(int cpu)
1086 {
1087 return NULL;
1088 }
1089
1090 #endif /* !CONFIG_ACPI */
1091
1092 extern void arch_post_acpi_subsys_init(void);
1093
1094 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1095 int acpi_ioapic_add(acpi_handle root);
1096 #else
1097 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1098 #endif
1099
1100 #ifdef CONFIG_ACPI
1101 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1102 u32 pm1a_ctrl, u32 pm1b_ctrl));
1103
1104 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1105 u32 pm1a_control, u32 pm1b_control);
1106
1107 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1108 u32 val_a, u32 val_b));
1109
1110 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1111 u32 val_a, u32 val_b);
1112 #if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
1113 struct acpi_s2idle_dev_ops {
1114 struct list_head list_node;
1115 void (*prepare)(void);
1116 void (*check)(void);
1117 void (*restore)(void);
1118 };
1119 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1120 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1121 int acpi_get_lps0_constraint(struct acpi_device *adev);
1122 #else /* CONFIG_SUSPEND && CONFIG_X86 */
1123 static inline int acpi_get_lps0_constraint(struct device *dev)
1124 {
1125 return ACPI_STATE_UNKNOWN;
1126 }
1127 #endif /* CONFIG_SUSPEND && CONFIG_X86 */
1128 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1129 #else
1130 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1131 #endif
1132
1133 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1134 int acpi_dev_suspend(struct device *dev, bool wakeup);
1135 int acpi_dev_resume(struct device *dev);
1136 int acpi_subsys_runtime_suspend(struct device *dev);
1137 int acpi_subsys_runtime_resume(struct device *dev);
1138 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1139 bool acpi_storage_d3(struct device *dev);
1140 bool acpi_dev_state_d0(struct device *dev);
1141 #else
1142 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
1143 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
1144 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1145 {
1146 return 0;
1147 }
1148 static inline bool acpi_storage_d3(struct device *dev)
1149 {
1150 return false;
1151 }
1152 static inline bool acpi_dev_state_d0(struct device *dev)
1153 {
1154 return true;
1155 }
1156 #endif
1157
1158 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1159 int acpi_subsys_prepare(struct device *dev);
1160 void acpi_subsys_complete(struct device *dev);
1161 int acpi_subsys_suspend_late(struct device *dev);
1162 int acpi_subsys_suspend_noirq(struct device *dev);
1163 int acpi_subsys_suspend(struct device *dev);
1164 int acpi_subsys_freeze(struct device *dev);
1165 int acpi_subsys_poweroff(struct device *dev);
1166 void acpi_ec_mark_gpe_for_wake(void);
1167 void acpi_ec_set_gpe_wake_mask(u8 action);
1168 int acpi_subsys_restore_early(struct device *dev);
1169 #else
1170 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
1171 static inline void acpi_subsys_complete(struct device *dev) {}
1172 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
1173 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
1174 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
1175 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
1176 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
1177 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; }
1178 static inline void acpi_ec_mark_gpe_for_wake(void) {}
1179 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1180 #endif
1181
1182 #ifdef CONFIG_ACPI
1183 char *acpi_handle_path(acpi_handle handle);
1184 __printf(3, 4)
1185 void acpi_handle_printk(const char *level, acpi_handle handle,
1186 const char *fmt, ...);
1187 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1188 acpi_status status);
1189 #else /* !CONFIG_ACPI */
1190 static inline __printf(3, 4) void
1191 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
1192 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1193 const char *name,
1194 acpi_status status) {}
1195 #endif /* !CONFIG_ACPI */
1196
1197 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1198 __printf(3, 4)
1199 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1200 #endif
1201
1202 /*
1203 * acpi_handle_<level>: Print message with ACPI prefix and object path
1204 *
1205 * These interfaces acquire the global namespace mutex to obtain an object
1206 * path. In interrupt context, it shows the object path as <n/a>.
1207 */
1208 #define acpi_handle_emerg(handle, fmt, ...) \
1209 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1210 #define acpi_handle_alert(handle, fmt, ...) \
1211 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1212 #define acpi_handle_crit(handle, fmt, ...) \
1213 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1214 #define acpi_handle_err(handle, fmt, ...) \
1215 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1216 #define acpi_handle_warn(handle, fmt, ...) \
1217 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1218 #define acpi_handle_notice(handle, fmt, ...) \
1219 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1220 #define acpi_handle_info(handle, fmt, ...) \
1221 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1222
1223 #if defined(DEBUG)
1224 #define acpi_handle_debug(handle, fmt, ...) \
1225 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1226 #else
1227 #if defined(CONFIG_DYNAMIC_DEBUG)
1228 #define acpi_handle_debug(handle, fmt, ...) \
1229 _dynamic_func_call(fmt, __acpi_handle_debug, \
1230 handle, pr_fmt(fmt), ##__VA_ARGS__)
1231 #else
1232 #define acpi_handle_debug(handle, fmt, ...) \
1233 ({ \
1234 if (0) \
1235 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1236 0; \
1237 })
1238 #endif
1239 #endif
1240
1241 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1242 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1243 struct acpi_resource_gpio **agpio);
1244 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1245 struct acpi_resource_gpio **agpio);
1246 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, int index,
1247 bool *wake_capable);
1248 #else
1249 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1250 struct acpi_resource_gpio **agpio)
1251 {
1252 return false;
1253 }
1254 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1255 struct acpi_resource_gpio **agpio)
1256 {
1257 return false;
1258 }
1259 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id,
1260 int index, bool *wake_capable)
1261 {
1262 return -ENXIO;
1263 }
1264 #endif
1265
1266 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1267 bool *wake_capable)
1268 {
1269 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1270 }
1271
1272 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *con_id,
1273 int index)
1274 {
1275 return acpi_dev_gpio_irq_wake_get_by(adev, con_id, index, NULL);
1276 }
1277
1278 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1279 {
1280 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1281 }
1282
1283 /* Device properties */
1284
1285 #ifdef CONFIG_ACPI
1286 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1287 acpi_object_type type, const union acpi_object **obj);
1288 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1289 const char *name, size_t index, size_t num_args,
1290 struct fwnode_reference_args *args);
1291
1292 static inline int acpi_node_get_property_reference(
1293 const struct fwnode_handle *fwnode,
1294 const char *name, size_t index,
1295 struct fwnode_reference_args *args)
1296 {
1297 return __acpi_node_get_property_reference(fwnode, name, index,
1298 NR_FWNODE_REFERENCE_ARGS, args);
1299 }
1300
1301 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1302 {
1303 return !list_empty(&adev->data.properties);
1304 }
1305
1306 struct acpi_device_properties *
1307 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1308 union acpi_object *properties);
1309
1310 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1311 void **valptr);
1312
1313 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1314 struct fwnode_handle *child);
1315
1316 struct acpi_probe_entry;
1317 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1318 struct acpi_probe_entry *);
1319
1320 #define ACPI_TABLE_ID_LEN 5
1321
1322 /**
1323 * struct acpi_probe_entry - boot-time probing entry
1324 * @id: ACPI table name
1325 * @type: Optional subtable type to match
1326 * (if @id contains subtables)
1327 * @subtable_valid: Optional callback to check the validity of
1328 * the subtable
1329 * @probe_table: Callback to the driver being probed when table
1330 * match is successful
1331 * @probe_subtbl: Callback to the driver being probed when table and
1332 * subtable match (and optional callback is successful)
1333 * @driver_data: Sideband data provided back to the driver
1334 */
1335 struct acpi_probe_entry {
1336 __u8 id[ACPI_TABLE_ID_LEN];
1337 __u8 type;
1338 acpi_probe_entry_validate_subtbl subtable_valid;
1339 union {
1340 acpi_tbl_table_handler probe_table;
1341 acpi_tbl_entry_handler probe_subtbl;
1342 };
1343 kernel_ulong_t driver_data;
1344 };
1345
1346 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1347 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_table = fn, \
1354 .driver_data = data, \
1355 }
1356
1357 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1358 subtable, valid, data, fn) \
1359 static const struct acpi_probe_entry __acpi_probe_##name \
1360 __used __section("__" #table "_acpi_probe_table") = { \
1361 .id = table_id, \
1362 .type = subtable, \
1363 .subtable_valid = valid, \
1364 .probe_subtbl = fn, \
1365 .driver_data = data, \
1366 }
1367
1368 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1369 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1370
1371 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1372
1373 #define acpi_probe_device_table(t) \
1374 ({ \
1375 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1376 ACPI_PROBE_TABLE_END(t); \
1377 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1378 (&ACPI_PROBE_TABLE_END(t) - \
1379 &ACPI_PROBE_TABLE(t))); \
1380 })
1381 #else
1382 static inline int acpi_dev_get_property(struct acpi_device *adev,
1383 const char *name, acpi_object_type type,
1384 const union acpi_object **obj)
1385 {
1386 return -ENXIO;
1387 }
1388
1389 static inline int
1390 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1391 const char *name, size_t index, size_t num_args,
1392 struct fwnode_reference_args *args)
1393 {
1394 return -ENXIO;
1395 }
1396
1397 static inline int
1398 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1399 const char *name, size_t index,
1400 struct fwnode_reference_args *args)
1401 {
1402 return -ENXIO;
1403 }
1404
1405 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1406 const char *propname,
1407 void **valptr)
1408 {
1409 return -ENXIO;
1410 }
1411
1412 static inline struct fwnode_handle *
1413 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1414 struct fwnode_handle *child)
1415 {
1416 return NULL;
1417 }
1418
1419 static inline struct fwnode_handle *
1420 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1421 struct fwnode_handle *prev)
1422 {
1423 return ERR_PTR(-ENXIO);
1424 }
1425
1426 static inline int
1427 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1428 struct fwnode_handle **remote,
1429 struct fwnode_handle **port,
1430 struct fwnode_handle **endpoint)
1431 {
1432 return -ENXIO;
1433 }
1434
1435 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1436 static const void * __acpi_table_##name[] \
1437 __attribute__((unused)) \
1438 = { (void *) table_id, \
1439 (void *) subtable, \
1440 (void *) valid, \
1441 (void *) fn, \
1442 (void *) data }
1443
1444 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1445 #endif
1446
1447 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1448 void acpi_table_upgrade(void);
1449 #else
1450 static inline void acpi_table_upgrade(void) { }
1451 #endif
1452
1453 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1454 extern bool acpi_has_watchdog(void);
1455 #else
1456 static inline bool acpi_has_watchdog(void) { return false; }
1457 #endif
1458
1459 #ifdef CONFIG_ACPI_SPCR_TABLE
1460 extern bool qdf2400_e44_present;
1461 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1462 #else
1463 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1464 {
1465 return 0;
1466 }
1467 #endif
1468
1469 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1470 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1471 #else
1472 static inline
1473 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1474 {
1475 return -EINVAL;
1476 }
1477 #endif
1478
1479 #ifdef CONFIG_ACPI_LPIT
1480 int lpit_read_residency_count_address(u64 *address);
1481 #else
1482 static inline int lpit_read_residency_count_address(u64 *address)
1483 {
1484 return -EINVAL;
1485 }
1486 #endif
1487
1488 #ifdef CONFIG_ACPI_PROCESSOR_IDLE
1489 #ifndef arch_get_idle_state_flags
1490 static inline unsigned int arch_get_idle_state_flags(u32 arch_flags)
1491 {
1492 return 0;
1493 }
1494 #endif
1495 #endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1496
1497 #ifdef CONFIG_ACPI_PPTT
1498 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1499 int find_acpi_cpu_topology(unsigned int cpu, int level);
1500 int find_acpi_cpu_topology_cluster(unsigned int cpu);
1501 int find_acpi_cpu_topology_package(unsigned int cpu);
1502 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1503 #else
1504 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1505 {
1506 return -EINVAL;
1507 }
1508 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1509 {
1510 return -EINVAL;
1511 }
1512 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1513 {
1514 return -EINVAL;
1515 }
1516 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1517 {
1518 return -EINVAL;
1519 }
1520 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1521 {
1522 return -EINVAL;
1523 }
1524 #endif
1525
1526 #ifdef CONFIG_ARM64
1527 void acpi_arm_init(void);
1528 #else
1529 static inline void acpi_arm_init(void) { }
1530 #endif
1531
1532 #ifdef CONFIG_ACPI_PCC
1533 void acpi_init_pcc(void);
1534 #else
1535 static inline void acpi_init_pcc(void) { }
1536 #endif
1537
1538 #ifdef CONFIG_ACPI_FFH
1539 void acpi_init_ffh(void);
1540 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt,
1541 void **region_ctxt);
1542 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value,
1543 void *region_context);
1544 #else
1545 static inline void acpi_init_ffh(void) { }
1546 #endif
1547
1548 #ifdef CONFIG_ACPI
1549 extern void acpi_device_notify(struct device *dev);
1550 extern void acpi_device_notify_remove(struct device *dev);
1551 #else
1552 static inline void acpi_device_notify(struct device *dev) { }
1553 static inline void acpi_device_notify_remove(struct device *dev) { }
1554 #endif
1555
1556 static inline void acpi_use_parent_companion(struct device *dev)
1557 {
1558 ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent));
1559 }
1560
1561 #ifdef CONFIG_ACPI_HMAT
1562 int hmat_update_target_coordinates(int nid, struct access_coordinate *coord,
1563 enum access_coordinate_class access);
1564 #else
1565 static inline int hmat_update_target_coordinates(int nid,
1566 struct access_coordinate *coord,
1567 enum access_coordinate_class access)
1568 {
1569 return -EOPNOTSUPP;
1570 }
1571 #endif
1572
1573 #ifdef CONFIG_ACPI_NUMA
1574 bool acpi_node_backed_by_real_pxm(int nid);
1575 #else
1576 static inline bool acpi_node_backed_by_real_pxm(int nid)
1577 {
1578 return false;
1579 }
1580 #endif
1581
1582 #endif /*_LINUX_ACPI_H*/
1583
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