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
acpi_device_handle(struct acpi_device * adev)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
acpi_alloc_fwnode_static(void)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
acpi_free_fwnode_static(struct fwnode_handle * fwnode)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
has_acpi_companion(struct device * dev)85 static inline bool has_acpi_companion(struct device *dev)
86 {
87 return is_acpi_device_node(dev->fwnode);
88 }
89
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)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
acpi_dev_name(struct acpi_device * adev)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_RINTC,
111 ACPI_IRQ_MODEL_COUNT
112 };
113
114 extern enum acpi_irq_model_id acpi_irq_model;
115
116 enum acpi_interrupt_id {
117 ACPI_INTERRUPT_PMI = 1,
118 ACPI_INTERRUPT_INIT,
119 ACPI_INTERRUPT_CPEI,
120 ACPI_INTERRUPT_COUNT
121 };
122
123 #define ACPI_SPACE_MEM 0
124
125 enum acpi_address_range_id {
126 ACPI_ADDRESS_RANGE_MEMORY = 1,
127 ACPI_ADDRESS_RANGE_RESERVED = 2,
128 ACPI_ADDRESS_RANGE_ACPI = 3,
129 ACPI_ADDRESS_RANGE_NVS = 4,
130 ACPI_ADDRESS_RANGE_COUNT
131 };
132
133
134 /* Table Handlers */
135 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
136
137 /* Debugger support */
138
139 struct acpi_debugger_ops {
140 int (*create_thread)(acpi_osd_exec_callback function, void *context);
141 ssize_t (*write_log)(const char *msg);
142 ssize_t (*read_cmd)(char *buffer, size_t length);
143 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
144 int (*notify_command_complete)(void);
145 };
146
147 struct acpi_debugger {
148 const struct acpi_debugger_ops *ops;
149 struct module *owner;
150 struct mutex lock;
151 };
152
153 #ifdef CONFIG_ACPI_DEBUGGER
154 int __init acpi_debugger_init(void);
155 int acpi_register_debugger(struct module *owner,
156 const struct acpi_debugger_ops *ops);
157 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
158 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
159 ssize_t acpi_debugger_write_log(const char *msg);
160 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
161 int acpi_debugger_wait_command_ready(void);
162 int acpi_debugger_notify_command_complete(void);
163 #else
acpi_debugger_init(void)164 static inline int acpi_debugger_init(void)
165 {
166 return -ENODEV;
167 }
168
acpi_register_debugger(struct module * owner,const struct acpi_debugger_ops * ops)169 static inline int acpi_register_debugger(struct module *owner,
170 const struct acpi_debugger_ops *ops)
171 {
172 return -ENODEV;
173 }
174
acpi_unregister_debugger(const struct acpi_debugger_ops * ops)175 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
176 {
177 }
178
acpi_debugger_create_thread(acpi_osd_exec_callback function,void * context)179 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
180 void *context)
181 {
182 return -ENODEV;
183 }
184
acpi_debugger_write_log(const char * msg)185 static inline int acpi_debugger_write_log(const char *msg)
186 {
187 return -ENODEV;
188 }
189
acpi_debugger_read_cmd(char * buffer,u32 buffer_length)190 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
191 {
192 return -ENODEV;
193 }
194
acpi_debugger_wait_command_ready(void)195 static inline int acpi_debugger_wait_command_ready(void)
196 {
197 return -ENODEV;
198 }
199
acpi_debugger_notify_command_complete(void)200 static inline int acpi_debugger_notify_command_complete(void)
201 {
202 return -ENODEV;
203 }
204 #endif
205
206 #define BAD_MADT_ENTRY(entry, end) ( \
207 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
208 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
209
210 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
211 void __acpi_unmap_table(void __iomem *map, unsigned long size);
212 int early_acpi_boot_init(void);
213 int acpi_boot_init (void);
214 void acpi_boot_table_prepare (void);
215 void acpi_boot_table_init (void);
216 int acpi_mps_check (void);
217 int acpi_numa_init (void);
218
219 int acpi_locate_initial_tables (void);
220 void acpi_reserve_initial_tables (void);
221 void acpi_table_init_complete (void);
222 int acpi_table_init (void);
223
224 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
225 int __init_or_acpilib acpi_table_parse_entries(char *id,
226 unsigned long table_size, int entry_id,
227 acpi_tbl_entry_handler handler, unsigned int max_entries);
228 int __init_or_acpilib acpi_table_parse_entries_array(char *id,
229 unsigned long table_size, struct acpi_subtable_proc *proc,
230 int proc_num, unsigned int max_entries);
231 int acpi_table_parse_madt(enum acpi_madt_type id,
232 acpi_tbl_entry_handler handler,
233 unsigned int max_entries);
234 int __init_or_acpilib
235 acpi_table_parse_cedt(enum acpi_cedt_type id,
236 acpi_tbl_entry_handler_arg handler_arg, void *arg);
237
238 int acpi_parse_mcfg (struct acpi_table_header *header);
239 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
240
241 #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
242 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
243 #else
244 static inline void
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity * pa)245 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
246 #endif
247
248 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
249
250 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
251 void acpi_arch_dma_setup(struct device *dev);
252 #else
acpi_arch_dma_setup(struct device * dev)253 static inline void acpi_arch_dma_setup(struct device *dev) { }
254 #endif
255
256 #ifdef CONFIG_ARM64
257 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
258 #else
259 static inline void
acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity * pa)260 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
261 #endif
262
263 #ifdef CONFIG_RISCV
264 void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa);
265 #else
acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity * pa)266 static inline void acpi_numa_rintc_affinity_init(struct acpi_srat_rintc_affinity *pa) { }
267 #endif
268
269 #ifndef PHYS_CPUID_INVALID
270 typedef u32 phys_cpuid_t;
271 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
272 #endif
273
invalid_logical_cpuid(u32 cpuid)274 static inline bool invalid_logical_cpuid(u32 cpuid)
275 {
276 return (int)cpuid < 0;
277 }
278
invalid_phys_cpuid(phys_cpuid_t phys_id)279 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
280 {
281 return phys_id == PHYS_CPUID_INVALID;
282 }
283
284
285 int __init acpi_get_madt_revision(void);
286
287 /* Validate the processor object's proc_id */
288 bool acpi_duplicate_processor_id(int proc_id);
289 /* Processor _CTS control */
290 struct acpi_processor_power;
291
292 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
293 bool acpi_processor_claim_cst_control(void);
294 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
295 struct acpi_processor_power *info);
296 #else
acpi_processor_claim_cst_control(void)297 static inline bool acpi_processor_claim_cst_control(void) { return false; }
acpi_processor_evaluate_cst(acpi_handle handle,u32 cpu,struct acpi_processor_power * info)298 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
299 struct acpi_processor_power *info)
300 {
301 return -ENODEV;
302 }
303 #endif
304
305 #ifdef CONFIG_ACPI_HOTPLUG_CPU
306 /* Arch dependent functions for cpu hotplug support */
307 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
308 int *pcpu);
309 int acpi_unmap_cpu(int cpu);
310 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
311
312 acpi_handle acpi_get_processor_handle(int cpu);
313
314 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
315 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
316 #endif
317
318 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
319 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
320 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
321 void acpi_irq_stats_init(void);
322 extern u32 acpi_irq_handled;
323 extern u32 acpi_irq_not_handled;
324 extern unsigned int acpi_sci_irq;
325 extern bool acpi_no_s5;
326 #define INVALID_ACPI_IRQ ((unsigned)-1)
acpi_sci_irq_valid(void)327 static inline bool acpi_sci_irq_valid(void)
328 {
329 return acpi_sci_irq != INVALID_ACPI_IRQ;
330 }
331
332 extern int sbf_port;
333 extern unsigned long acpi_realmode_flags;
334
335 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
336 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
337 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
338
339 void acpi_set_irq_model(enum acpi_irq_model_id model,
340 struct fwnode_handle *(*)(u32));
341 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32));
342
343 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
344 unsigned int size,
345 struct fwnode_handle *fwnode,
346 const struct irq_domain_ops *ops,
347 void *host_data);
348
349 #ifdef CONFIG_X86_IO_APIC
350 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
351 #else
acpi_get_override_irq(u32 gsi,int * trigger,int * polarity)352 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
353 {
354 return -1;
355 }
356 #endif
357 /*
358 * This function undoes the effect of one call to acpi_register_gsi().
359 * If this matches the last registration, any IRQ resources for gsi
360 * are freed.
361 */
362 void acpi_unregister_gsi (u32 gsi);
363
364 struct pci_dev;
365
366 struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin);
367 int acpi_pci_irq_enable (struct pci_dev *dev);
368 void acpi_penalize_isa_irq(int irq, int active);
369 bool acpi_isa_irq_available(int irq);
370 #ifdef CONFIG_PCI
371 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
372 #else
acpi_penalize_sci_irq(int irq,int trigger,int polarity)373 static inline void acpi_penalize_sci_irq(int irq, int trigger,
374 int polarity)
375 {
376 }
377 #endif
378 void acpi_pci_irq_disable (struct pci_dev *dev);
379
380 extern int ec_read(u8 addr, u8 *val);
381 extern int ec_write(u8 addr, u8 val);
382 extern int ec_transaction(u8 command,
383 const u8 *wdata, unsigned wdata_len,
384 u8 *rdata, unsigned rdata_len);
385 extern acpi_handle ec_get_handle(void);
386
387 extern bool acpi_is_pnp_device(struct acpi_device *);
388
389 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
390
391 typedef void (*wmi_notify_handler) (union acpi_object *data, void *context);
392
393 int wmi_instance_count(const char *guid);
394
395 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
396 u32 method_id,
397 const struct acpi_buffer *in,
398 struct acpi_buffer *out);
399 extern acpi_status wmi_query_block(const char *guid, u8 instance,
400 struct acpi_buffer *out);
401 extern acpi_status wmi_set_block(const char *guid, u8 instance,
402 const struct acpi_buffer *in);
403 extern acpi_status wmi_install_notify_handler(const char *guid,
404 wmi_notify_handler handler, void *data);
405 extern acpi_status wmi_remove_notify_handler(const char *guid);
406 extern bool wmi_has_guid(const char *guid);
407 extern char *wmi_get_acpi_device_uid(const char *guid);
408
409 #endif /* CONFIG_ACPI_WMI */
410
411 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
412 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
413 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
414 #define ACPI_VIDEO_BACKLIGHT 0x0008
415 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
416 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
417 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
418 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
419 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
420 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
421 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
422 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
423
424 extern char acpi_video_backlight_string[];
425 extern long acpi_is_video_device(acpi_handle handle);
426
427 extern void acpi_osi_setup(char *str);
428 extern bool acpi_osi_is_win8(void);
429
430 #ifdef CONFIG_ACPI_THERMAL_LIB
431 int thermal_acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
432 int thermal_acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
433 int thermal_acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
434 int thermal_acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
435 #endif
436
437 #ifdef CONFIG_ACPI_HMAT
438 int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord);
439 #else
acpi_get_genport_coordinates(u32 uid,struct access_coordinate * coord)440 static inline int acpi_get_genport_coordinates(u32 uid,
441 struct access_coordinate *coord)
442 {
443 return -EOPNOTSUPP;
444 }
445 #endif
446
447 #ifdef CONFIG_ACPI_NUMA
448 int acpi_map_pxm_to_node(int pxm);
449 int acpi_get_node(acpi_handle handle);
450
451 /**
452 * pxm_to_online_node - Map proximity ID to online node
453 * @pxm: ACPI proximity ID
454 *
455 * This is similar to pxm_to_node(), but always returns an online
456 * node. When the mapped node from a given proximity ID is offline, it
457 * looks up the node distance table and returns the nearest online node.
458 *
459 * ACPI device drivers, which are called after the NUMA initialization has
460 * completed in the kernel, can call this interface to obtain their device
461 * NUMA topology from ACPI tables. Such drivers do not have to deal with
462 * offline nodes. A node may be offline when SRAT memory entry does not exist,
463 * or NUMA is disabled, ex. "numa=off" on x86.
464 */
pxm_to_online_node(int pxm)465 static inline int pxm_to_online_node(int pxm)
466 {
467 int node = pxm_to_node(pxm);
468
469 return numa_map_to_online_node(node);
470 }
471 #else
pxm_to_online_node(int pxm)472 static inline int pxm_to_online_node(int pxm)
473 {
474 return 0;
475 }
acpi_map_pxm_to_node(int pxm)476 static inline int acpi_map_pxm_to_node(int pxm)
477 {
478 return 0;
479 }
acpi_get_node(acpi_handle handle)480 static inline int acpi_get_node(acpi_handle handle)
481 {
482 return 0;
483 }
484 #endif
485 extern int pnpacpi_disabled;
486
487 #define PXM_INVAL (-1)
488
489 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
490 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
491 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
492 struct resource_win *win);
493 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
494 struct resource_win *win);
495 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
496 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
497 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
498 struct resource *res);
499
500 void acpi_dev_free_resource_list(struct list_head *list);
501 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
502 int (*preproc)(struct acpi_resource *, void *),
503 void *preproc_data);
504 int acpi_dev_get_dma_resources(struct acpi_device *adev,
505 struct list_head *list);
506 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
507 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
508 unsigned long types);
509
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)510 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
511 void *arg)
512 {
513 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
514 }
515
516 struct acpi_device *acpi_resource_consumer(struct resource *res);
517
518 int acpi_check_resource_conflict(const struct resource *res);
519
520 int acpi_check_region(resource_size_t start, resource_size_t n,
521 const char *name);
522
523 int acpi_resources_are_enforced(void);
524
525 #ifdef CONFIG_HIBERNATION
526 extern int acpi_check_s4_hw_signature;
527 #endif
528
529 #ifdef CONFIG_PM_SLEEP
530 void __init acpi_old_suspend_ordering(void);
531 void __init acpi_nvs_nosave(void);
532 void __init acpi_nvs_nosave_s3(void);
533 void __init acpi_sleep_no_blacklist(void);
534 #endif /* CONFIG_PM_SLEEP */
535
536 int acpi_register_wakeup_handler(
537 int wake_irq, bool (*wakeup)(void *context), void *context);
538 void acpi_unregister_wakeup_handler(
539 bool (*wakeup)(void *context), void *context);
540
541 struct acpi_osc_context {
542 char *uuid_str; /* UUID string */
543 int rev;
544 struct acpi_buffer cap; /* list of DWORD capabilities */
545 struct acpi_buffer ret; /* free by caller if success */
546 };
547
548 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
549
550 /* Number of _OSC capability DWORDS depends on bridge type */
551 #define OSC_PCI_CAPABILITY_DWORDS 3
552 #define OSC_CXL_CAPABILITY_DWORDS 5
553
554 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
555 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
556 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
557 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
558 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */
559 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */
560
561 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
562 #define OSC_QUERY_ENABLE 0x00000001 /* input */
563 #define OSC_REQUEST_ERROR 0x00000002 /* return */
564 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
565 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
566 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
567
568 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
569 #define OSC_SB_PAD_SUPPORT 0x00000001
570 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
571 #define OSC_SB_PR3_SUPPORT 0x00000004
572 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
573 #define OSC_SB_APEI_SUPPORT 0x00000010
574 #define OSC_SB_CPC_SUPPORT 0x00000020
575 #define OSC_SB_CPCV2_SUPPORT 0x00000040
576 #define OSC_SB_PCLPI_SUPPORT 0x00000080
577 #define OSC_SB_OSLPI_SUPPORT 0x00000100
578 #define OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT 0x00000200
579 #define OSC_SB_OVER_16_PSTATES_SUPPORT 0x00000400
580 #define OSC_SB_GED_SUPPORT 0x00000800
581 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
582 #define OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT 0x00002000
583 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000
584 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00020000
585 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
586 #define OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT 0x00080000
587 #define OSC_SB_PRM_SUPPORT 0x00200000
588 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000
589
590 extern bool osc_sb_apei_support_acked;
591 extern bool osc_pc_lpi_support_confirmed;
592 extern bool osc_sb_native_usb4_support_confirmed;
593 extern bool osc_sb_cppc2_support_acked;
594 extern bool osc_cpc_flexible_adr_space_confirmed;
595
596 /* USB4 Capabilities */
597 #define OSC_USB_USB3_TUNNELING 0x00000001
598 #define OSC_USB_DP_TUNNELING 0x00000002
599 #define OSC_USB_PCIE_TUNNELING 0x00000004
600 #define OSC_USB_XDOMAIN 0x00000008
601
602 extern u32 osc_sb_native_usb4_control;
603
604 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
605 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
606 #define OSC_PCI_ASPM_SUPPORT 0x00000002
607 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
608 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
609 #define OSC_PCI_MSI_SUPPORT 0x00000010
610 #define OSC_PCI_EDR_SUPPORT 0x00000080
611 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
612
613 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
614 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
615 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
616 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
617 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
618 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
619 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
620 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
621
622 /* CXL _OSC: Capabilities DWORD 4: Support Field */
623 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001
624 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002
625 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004
626 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008
627
628 /* CXL _OSC: Capabilities DWORD 5: Control Field */
629 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001
630
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)631 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
632 {
633 u32 *ret = context->ret.pointer;
634
635 return ret[OSC_CONTROL_DWORD];
636 }
637
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)638 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
639 {
640 u32 *ret = context->ret.pointer;
641
642 return ret[OSC_EXT_CONTROL_DWORD];
643 }
644
645 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
646 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
647 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
648 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
649 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
650 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
651 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
652 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
653 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
655
656 /* Enable _OST when all relevant hotplug operations are enabled */
657 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
658 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
659 defined(CONFIG_ACPI_CONTAINER)
660 #define ACPI_HOTPLUG_OST
661 #endif
662
663 /* _OST Source Event Code (OSPM Action) */
664 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
665 #define ACPI_OST_EC_OSPM_EJECT 0x103
666 #define ACPI_OST_EC_OSPM_INSERTION 0x200
667
668 /* _OST General Processing Status Code */
669 #define ACPI_OST_SC_SUCCESS 0x0
670 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
671 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
672
673 /* _OST OS Shutdown Processing (0x100) Status Code */
674 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
675 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
676 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
677 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
678
679 /* _OST Ejection Request (0x3, 0x103) Status Code */
680 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
681 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
682 #define ACPI_OST_SC_DEVICE_BUSY 0x82
683 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
684 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
685
686 /* _OST Insertion Request (0x200) Status Code */
687 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
688 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
689 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
690
691 enum acpi_predicate {
692 all_versions,
693 less_than_or_equal,
694 equal,
695 greater_than_or_equal,
696 };
697
698 /* Table must be terminted by a NULL entry */
699 struct acpi_platform_list {
700 char oem_id[ACPI_OEM_ID_SIZE+1];
701 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
702 u32 oem_revision;
703 char *table;
704 enum acpi_predicate pred;
705 char *reason;
706 u32 data;
707 };
708 int acpi_match_platform_list(const struct acpi_platform_list *plat);
709
710 extern void acpi_early_init(void);
711 extern void acpi_subsystem_init(void);
712
713 extern int acpi_nvs_register(__u64 start, __u64 size);
714
715 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
716 void *data);
717
718 const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids,
719 const struct acpi_device *adev);
720
721 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
722 const struct device *dev);
723
724 const void *acpi_device_get_match_data(const struct device *dev);
725 extern bool acpi_driver_match_device(struct device *dev,
726 const struct device_driver *drv);
727 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *);
728 int acpi_device_modalias(struct device *, char *, int);
729
730 struct platform_device *acpi_create_platform_device(struct acpi_device *,
731 const struct property_entry *);
732 #define ACPI_PTR(_ptr) (_ptr)
733
acpi_device_set_enumerated(struct acpi_device * adev)734 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
735 {
736 adev->flags.visited = true;
737 }
738
acpi_device_clear_enumerated(struct acpi_device * adev)739 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
740 {
741 adev->flags.visited = false;
742 }
743
744 enum acpi_reconfig_event {
745 ACPI_RECONFIG_DEVICE_ADD = 0,
746 ACPI_RECONFIG_DEVICE_REMOVE,
747 };
748
749 int acpi_reconfig_notifier_register(struct notifier_block *nb);
750 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
751
752 #ifdef CONFIG_ACPI_GTDT
753 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
754 int acpi_gtdt_map_ppi(int type);
755 bool acpi_gtdt_c3stop(int type);
756 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
757 #endif
758
759 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)760 static inline void acpi_arch_set_root_pointer(u64 addr)
761 {
762 }
763 #endif
764
765 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)766 static inline u64 acpi_arch_get_root_pointer(void)
767 {
768 return 0;
769 }
770 #endif
771
772 int acpi_get_local_u64_address(acpi_handle handle, u64 *addr);
773 int acpi_get_local_address(acpi_handle handle, u32 *addr);
774 const char *acpi_get_subsystem_id(acpi_handle handle);
775
776 #else /* !CONFIG_ACPI */
777
778 #define acpi_disabled 1
779
780 #define ACPI_COMPANION(dev) (NULL)
781 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
782 #define ACPI_HANDLE(dev) (NULL)
783 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
784
785 /* Get rid of the -Wunused-variable for adev */
786 #define acpi_dev_uid_match(adev, uid2) (adev && false)
787 #define acpi_dev_hid_uid_match(adev, hid2, uid2) (adev && false)
788
789 struct fwnode_handle;
790
acpi_dev_found(const char * hid)791 static inline bool acpi_dev_found(const char *hid)
792 {
793 return false;
794 }
795
acpi_dev_present(const char * hid,const char * uid,s64 hrv)796 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
797 {
798 return false;
799 }
800
801 struct acpi_device;
802
acpi_dev_uid_to_integer(struct acpi_device * adev,u64 * integer)803 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
804 {
805 return -ENODEV;
806 }
807
808 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)809 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
810 {
811 return NULL;
812 }
813
acpi_reduced_hardware(void)814 static inline bool acpi_reduced_hardware(void)
815 {
816 return false;
817 }
818
acpi_dev_put(struct acpi_device * adev)819 static inline void acpi_dev_put(struct acpi_device *adev) {}
820
is_acpi_node(const struct fwnode_handle * fwnode)821 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
822 {
823 return false;
824 }
825
is_acpi_device_node(const struct fwnode_handle * fwnode)826 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
827 {
828 return false;
829 }
830
to_acpi_device_node(const struct fwnode_handle * fwnode)831 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
832 {
833 return NULL;
834 }
835
is_acpi_data_node(const struct fwnode_handle * fwnode)836 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
837 {
838 return false;
839 }
840
to_acpi_data_node(const struct fwnode_handle * fwnode)841 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
842 {
843 return NULL;
844 }
845
acpi_data_node_match(const struct fwnode_handle * fwnode,const char * name)846 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
847 const char *name)
848 {
849 return false;
850 }
851
acpi_fwnode_handle(struct acpi_device * adev)852 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
853 {
854 return NULL;
855 }
856
has_acpi_companion(struct device * dev)857 static inline bool has_acpi_companion(struct device *dev)
858 {
859 return false;
860 }
861
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)862 static inline void acpi_preset_companion(struct device *dev,
863 struct acpi_device *parent, u64 addr)
864 {
865 }
866
acpi_dev_name(struct acpi_device * adev)867 static inline const char *acpi_dev_name(struct acpi_device *adev)
868 {
869 return NULL;
870 }
871
acpi_get_first_physical_node(struct acpi_device * adev)872 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
873 {
874 return NULL;
875 }
876
acpi_early_init(void)877 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)878 static inline void acpi_subsystem_init(void) { }
879
early_acpi_boot_init(void)880 static inline int early_acpi_boot_init(void)
881 {
882 return 0;
883 }
acpi_boot_init(void)884 static inline int acpi_boot_init(void)
885 {
886 return 0;
887 }
888
acpi_boot_table_prepare(void)889 static inline void acpi_boot_table_prepare(void)
890 {
891 }
892
acpi_boot_table_init(void)893 static inline void acpi_boot_table_init(void)
894 {
895 }
896
acpi_mps_check(void)897 static inline int acpi_mps_check(void)
898 {
899 return 0;
900 }
901
acpi_check_resource_conflict(struct resource * res)902 static inline int acpi_check_resource_conflict(struct resource *res)
903 {
904 return 0;
905 }
906
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)907 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
908 const char *name)
909 {
910 return 0;
911 }
912
913 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))914 static inline int acpi_table_parse(char *id,
915 int (*handler)(struct acpi_table_header *))
916 {
917 return -ENODEV;
918 }
919
acpi_nvs_register(__u64 start,__u64 size)920 static inline int acpi_nvs_register(__u64 start, __u64 size)
921 {
922 return 0;
923 }
924
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)925 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
926 void *data)
927 {
928 return 0;
929 }
930
931 struct acpi_device_id;
932
acpi_match_acpi_device(const struct acpi_device_id * ids,const struct acpi_device * adev)933 static inline const struct acpi_device_id *acpi_match_acpi_device(
934 const struct acpi_device_id *ids, const struct acpi_device *adev)
935 {
936 return NULL;
937 }
938
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)939 static inline const struct acpi_device_id *acpi_match_device(
940 const struct acpi_device_id *ids, const struct device *dev)
941 {
942 return NULL;
943 }
944
acpi_device_get_match_data(const struct device * dev)945 static inline const void *acpi_device_get_match_data(const struct device *dev)
946 {
947 return NULL;
948 }
949
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)950 static inline bool acpi_driver_match_device(struct device *dev,
951 const struct device_driver *drv)
952 {
953 return false;
954 }
955
acpi_check_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 funcs)956 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid,
957 u64 rev, u64 funcs)
958 {
959 return false;
960 }
961
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4)962 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
963 const guid_t *guid,
964 u64 rev, u64 func,
965 union acpi_object *argv4)
966 {
967 return NULL;
968 }
969
acpi_evaluate_dsm_typed(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4,acpi_object_type type)970 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle,
971 const guid_t *guid,
972 u64 rev, u64 func,
973 union acpi_object *argv4,
974 acpi_object_type type)
975 {
976 return NULL;
977 }
978
acpi_device_uevent_modalias(const struct device * dev,struct kobj_uevent_env * env)979 static inline int acpi_device_uevent_modalias(const struct device *dev,
980 struct kobj_uevent_env *env)
981 {
982 return -ENODEV;
983 }
984
acpi_device_modalias(struct device * dev,char * buf,int size)985 static inline int acpi_device_modalias(struct device *dev,
986 char *buf, int size)
987 {
988 return -ENODEV;
989 }
990
991 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,const struct property_entry * properties)992 acpi_create_platform_device(struct acpi_device *adev,
993 const struct property_entry *properties)
994 {
995 return NULL;
996 }
997
acpi_dma_supported(const struct acpi_device * adev)998 static inline bool acpi_dma_supported(const struct acpi_device *adev)
999 {
1000 return false;
1001 }
1002
acpi_get_dma_attr(struct acpi_device * adev)1003 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
1004 {
1005 return DEV_DMA_NOT_SUPPORTED;
1006 }
1007
acpi_dma_get_range(struct device * dev,const struct bus_dma_region ** map)1008 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
1009 {
1010 return -ENODEV;
1011 }
1012
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)1013 static inline int acpi_dma_configure(struct device *dev,
1014 enum dev_dma_attr attr)
1015 {
1016 return 0;
1017 }
1018
acpi_dma_configure_id(struct device * dev,enum dev_dma_attr attr,const u32 * input_id)1019 static inline int acpi_dma_configure_id(struct device *dev,
1020 enum dev_dma_attr attr,
1021 const u32 *input_id)
1022 {
1023 return 0;
1024 }
1025
1026 #define ACPI_PTR(_ptr) (NULL)
1027
acpi_device_set_enumerated(struct acpi_device * adev)1028 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1029 {
1030 }
1031
acpi_device_clear_enumerated(struct acpi_device * adev)1032 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1033 {
1034 }
1035
acpi_reconfig_notifier_register(struct notifier_block * nb)1036 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1037 {
1038 return -EINVAL;
1039 }
1040
acpi_reconfig_notifier_unregister(struct notifier_block * nb)1041 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1042 {
1043 return -EINVAL;
1044 }
1045
acpi_resource_consumer(struct resource * res)1046 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1047 {
1048 return NULL;
1049 }
1050
acpi_get_local_address(acpi_handle handle,u32 * addr)1051 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1052 {
1053 return -ENODEV;
1054 }
1055
acpi_get_subsystem_id(acpi_handle handle)1056 static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1057 {
1058 return ERR_PTR(-ENODEV);
1059 }
1060
acpi_register_wakeup_handler(int wake_irq,bool (* wakeup)(void * context),void * context)1061 static inline int acpi_register_wakeup_handler(int wake_irq,
1062 bool (*wakeup)(void *context), void *context)
1063 {
1064 return -ENXIO;
1065 }
1066
acpi_unregister_wakeup_handler(bool (* wakeup)(void * context),void * context)1067 static inline void acpi_unregister_wakeup_handler(
1068 bool (*wakeup)(void *context), void *context) { }
1069
1070 struct acpi_osc_context;
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)1071 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1072 {
1073 return 0;
1074 }
1075
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)1076 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1077 {
1078 return 0;
1079 }
1080
acpi_sleep_state_supported(u8 sleep_state)1081 static inline bool acpi_sleep_state_supported(u8 sleep_state)
1082 {
1083 return false;
1084 }
1085
acpi_get_processor_handle(int cpu)1086 static inline acpi_handle acpi_get_processor_handle(int cpu)
1087 {
1088 return NULL;
1089 }
1090
1091 #endif /* !CONFIG_ACPI */
1092
1093 extern void arch_post_acpi_subsys_init(void);
1094
1095 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1096 int acpi_ioapic_add(acpi_handle root);
1097 #else
acpi_ioapic_add(acpi_handle root)1098 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1099 #endif
1100
1101 #ifdef CONFIG_ACPI
1102 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1103 u32 pm1a_ctrl, u32 pm1b_ctrl));
1104
1105 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1106 u32 pm1a_control, u32 pm1b_control);
1107
1108 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1109 u32 val_a, u32 val_b));
1110
1111 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1112 u32 val_a, u32 val_b);
1113 #if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)
1114 struct acpi_s2idle_dev_ops {
1115 struct list_head list_node;
1116 void (*prepare)(void);
1117 void (*check)(void);
1118 void (*restore)(void);
1119 };
1120 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1121 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1122 int acpi_get_lps0_constraint(struct acpi_device *adev);
1123 #else /* CONFIG_SUSPEND && CONFIG_X86 */
acpi_get_lps0_constraint(struct device * dev)1124 static inline int acpi_get_lps0_constraint(struct device *dev)
1125 {
1126 return ACPI_STATE_UNKNOWN;
1127 }
1128 #endif /* CONFIG_SUSPEND && CONFIG_X86 */
1129 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1130 #else
1131 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1132 #endif
1133
1134 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1135 int acpi_dev_suspend(struct device *dev, bool wakeup);
1136 int acpi_dev_resume(struct device *dev);
1137 int acpi_subsys_runtime_suspend(struct device *dev);
1138 int acpi_subsys_runtime_resume(struct device *dev);
1139 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1140 bool acpi_storage_d3(struct device *dev);
1141 bool acpi_dev_state_d0(struct device *dev);
1142 #else
acpi_subsys_runtime_suspend(struct device * dev)1143 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)1144 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)1145 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1146 {
1147 return 0;
1148 }
acpi_storage_d3(struct device * dev)1149 static inline bool acpi_storage_d3(struct device *dev)
1150 {
1151 return false;
1152 }
acpi_dev_state_d0(struct device * dev)1153 static inline bool acpi_dev_state_d0(struct device *dev)
1154 {
1155 return true;
1156 }
1157 #endif
1158
1159 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1160 int acpi_subsys_prepare(struct device *dev);
1161 void acpi_subsys_complete(struct device *dev);
1162 int acpi_subsys_suspend_late(struct device *dev);
1163 int acpi_subsys_suspend_noirq(struct device *dev);
1164 int acpi_subsys_suspend(struct device *dev);
1165 int acpi_subsys_freeze(struct device *dev);
1166 int acpi_subsys_poweroff(struct device *dev);
1167 void acpi_ec_mark_gpe_for_wake(void);
1168 void acpi_ec_set_gpe_wake_mask(u8 action);
1169 int acpi_subsys_restore_early(struct device *dev);
1170 #else
acpi_subsys_prepare(struct device * dev)1171 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)1172 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)1173 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)1174 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)1175 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)1176 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)1177 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_subsys_restore_early(struct device * dev)1178 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)1179 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)1180 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1181 #endif
1182
1183 #ifdef CONFIG_ACPI
1184 char *acpi_handle_path(acpi_handle handle);
1185 __printf(3, 4)
1186 void acpi_handle_printk(const char *level, acpi_handle handle,
1187 const char *fmt, ...);
1188 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1189 acpi_status status);
1190 #else /* !CONFIG_ACPI */
1191 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)1192 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
acpi_evaluation_failure_warn(acpi_handle handle,const char * name,acpi_status status)1193 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1194 const char *name,
1195 acpi_status status) {}
1196 #endif /* !CONFIG_ACPI */
1197
1198 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1199 __printf(3, 4)
1200 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1201 #endif
1202
1203 /*
1204 * acpi_handle_<level>: Print message with ACPI prefix and object path
1205 *
1206 * These interfaces acquire the global namespace mutex to obtain an object
1207 * path. In interrupt context, it shows the object path as <n/a>.
1208 */
1209 #define acpi_handle_emerg(handle, fmt, ...) \
1210 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1211 #define acpi_handle_alert(handle, fmt, ...) \
1212 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1213 #define acpi_handle_crit(handle, fmt, ...) \
1214 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1215 #define acpi_handle_err(handle, fmt, ...) \
1216 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1217 #define acpi_handle_warn(handle, fmt, ...) \
1218 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1219 #define acpi_handle_notice(handle, fmt, ...) \
1220 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1221 #define acpi_handle_info(handle, fmt, ...) \
1222 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1223
1224 #if defined(DEBUG)
1225 #define acpi_handle_debug(handle, fmt, ...) \
1226 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1227 #else
1228 #if defined(CONFIG_DYNAMIC_DEBUG)
1229 #define acpi_handle_debug(handle, fmt, ...) \
1230 _dynamic_func_call(fmt, __acpi_handle_debug, \
1231 handle, pr_fmt(fmt), ##__VA_ARGS__)
1232 #else
1233 #define acpi_handle_debug(handle, fmt, ...) \
1234 ({ \
1235 if (0) \
1236 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1237 0; \
1238 })
1239 #endif
1240 #endif
1241
1242 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1243 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1244 struct acpi_resource_gpio **agpio);
1245 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1246 struct acpi_resource_gpio **agpio);
1247 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id, int index,
1248 bool *wake_capable);
1249 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1250 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1251 struct acpi_resource_gpio **agpio)
1252 {
1253 return false;
1254 }
acpi_gpio_get_io_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1255 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1256 struct acpi_resource_gpio **agpio)
1257 {
1258 return false;
1259 }
acpi_dev_gpio_irq_wake_get_by(struct acpi_device * adev,const char * con_id,int index,bool * wake_capable)1260 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *con_id,
1261 int index, bool *wake_capable)
1262 {
1263 return -ENXIO;
1264 }
1265 #endif
1266
acpi_dev_gpio_irq_wake_get(struct acpi_device * adev,int index,bool * wake_capable)1267 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1268 bool *wake_capable)
1269 {
1270 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1271 }
1272
acpi_dev_gpio_irq_get_by(struct acpi_device * adev,const char * con_id,int index)1273 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *con_id,
1274 int index)
1275 {
1276 return acpi_dev_gpio_irq_wake_get_by(adev, con_id, index, NULL);
1277 }
1278
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1279 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1280 {
1281 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1282 }
1283
1284 /* Device properties */
1285
1286 #ifdef CONFIG_ACPI
1287 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1288 acpi_object_type type, const union acpi_object **obj);
1289 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1290 const char *name, size_t index, size_t num_args,
1291 struct fwnode_reference_args *args);
1292
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1293 static inline int acpi_node_get_property_reference(
1294 const struct fwnode_handle *fwnode,
1295 const char *name, size_t index,
1296 struct fwnode_reference_args *args)
1297 {
1298 return __acpi_node_get_property_reference(fwnode, name, index,
1299 NR_FWNODE_REFERENCE_ARGS, args);
1300 }
1301
acpi_dev_has_props(const struct acpi_device * adev)1302 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1303 {
1304 return !list_empty(&adev->data.properties);
1305 }
1306
1307 struct acpi_device_properties *
1308 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1309 union acpi_object *properties);
1310
1311 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1312 void **valptr);
1313
1314 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1315 struct fwnode_handle *child);
1316
1317 struct acpi_probe_entry;
1318 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1319 struct acpi_probe_entry *);
1320
1321 #define ACPI_TABLE_ID_LEN 5
1322
1323 /**
1324 * struct acpi_probe_entry - boot-time probing entry
1325 * @id: ACPI table name
1326 * @type: Optional subtable type to match
1327 * (if @id contains subtables)
1328 * @subtable_valid: Optional callback to check the validity of
1329 * the subtable
1330 * @probe_table: Callback to the driver being probed when table
1331 * match is successful
1332 * @probe_subtbl: Callback to the driver being probed when table and
1333 * subtable match (and optional callback is successful)
1334 * @driver_data: Sideband data provided back to the driver
1335 */
1336 struct acpi_probe_entry {
1337 __u8 id[ACPI_TABLE_ID_LEN];
1338 __u8 type;
1339 acpi_probe_entry_validate_subtbl subtable_valid;
1340 union {
1341 acpi_tbl_table_handler probe_table;
1342 acpi_tbl_entry_handler probe_subtbl;
1343 };
1344 kernel_ulong_t driver_data;
1345 };
1346
1347 void arch_sort_irqchip_probe(struct acpi_probe_entry *ap_head, int nr);
1348
1349 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1350 valid, data, fn) \
1351 static const struct acpi_probe_entry __acpi_probe_##name \
1352 __used __section("__" #table "_acpi_probe_table") = { \
1353 .id = table_id, \
1354 .type = subtable, \
1355 .subtable_valid = valid, \
1356 .probe_table = fn, \
1357 .driver_data = data, \
1358 }
1359
1360 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1361 subtable, valid, data, fn) \
1362 static const struct acpi_probe_entry __acpi_probe_##name \
1363 __used __section("__" #table "_acpi_probe_table") = { \
1364 .id = table_id, \
1365 .type = subtable, \
1366 .subtable_valid = valid, \
1367 .probe_subtbl = fn, \
1368 .driver_data = data, \
1369 }
1370
1371 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1372 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1373
1374 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1375
1376 #define acpi_probe_device_table(t) \
1377 ({ \
1378 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1379 ACPI_PROBE_TABLE_END(t); \
1380 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1381 (&ACPI_PROBE_TABLE_END(t) - \
1382 &ACPI_PROBE_TABLE(t))); \
1383 })
1384 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1385 static inline int acpi_dev_get_property(struct acpi_device *adev,
1386 const char *name, acpi_object_type type,
1387 const union acpi_object **obj)
1388 {
1389 return -ENXIO;
1390 }
1391
1392 static inline int
__acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,size_t num_args,struct fwnode_reference_args * args)1393 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1394 const char *name, size_t index, size_t num_args,
1395 struct fwnode_reference_args *args)
1396 {
1397 return -ENXIO;
1398 }
1399
1400 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1401 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1402 const char *name, size_t index,
1403 struct fwnode_reference_args *args)
1404 {
1405 return -ENXIO;
1406 }
1407
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1408 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1409 const char *propname,
1410 void **valptr)
1411 {
1412 return -ENXIO;
1413 }
1414
1415 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1416 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1417 struct fwnode_handle *child)
1418 {
1419 return NULL;
1420 }
1421
1422 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1423 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1424 struct fwnode_handle *prev)
1425 {
1426 return ERR_PTR(-ENXIO);
1427 }
1428
1429 static inline int
acpi_graph_get_remote_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle ** remote,struct fwnode_handle ** port,struct fwnode_handle ** endpoint)1430 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1431 struct fwnode_handle **remote,
1432 struct fwnode_handle **port,
1433 struct fwnode_handle **endpoint)
1434 {
1435 return -ENXIO;
1436 }
1437
1438 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1439 static const void * __acpi_table_##name[] \
1440 __attribute__((unused)) \
1441 = { (void *) table_id, \
1442 (void *) subtable, \
1443 (void *) valid, \
1444 (void *) fn, \
1445 (void *) data }
1446
1447 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1448 #endif
1449
1450 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1451 void acpi_table_upgrade(void);
1452 #else
acpi_table_upgrade(void)1453 static inline void acpi_table_upgrade(void) { }
1454 #endif
1455
1456 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1457 extern bool acpi_has_watchdog(void);
1458 #else
acpi_has_watchdog(void)1459 static inline bool acpi_has_watchdog(void) { return false; }
1460 #endif
1461
1462 #ifdef CONFIG_ACPI_SPCR_TABLE
1463 extern bool qdf2400_e44_present;
1464 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1465 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1466 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1467 {
1468 return 0;
1469 }
1470 #endif
1471
1472 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1473 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1474 #else
1475 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1476 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1477 {
1478 return -EINVAL;
1479 }
1480 #endif
1481
1482 #ifdef CONFIG_ACPI_LPIT
1483 int lpit_read_residency_count_address(u64 *address);
1484 #else
lpit_read_residency_count_address(u64 * address)1485 static inline int lpit_read_residency_count_address(u64 *address)
1486 {
1487 return -EINVAL;
1488 }
1489 #endif
1490
1491 #ifdef CONFIG_ACPI_PROCESSOR_IDLE
1492 #ifndef arch_get_idle_state_flags
arch_get_idle_state_flags(u32 arch_flags)1493 static inline unsigned int arch_get_idle_state_flags(u32 arch_flags)
1494 {
1495 return 0;
1496 }
1497 #endif
1498 #endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1499
1500 #ifdef CONFIG_ACPI_PPTT
1501 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1502 int find_acpi_cpu_topology(unsigned int cpu, int level);
1503 int find_acpi_cpu_topology_cluster(unsigned int cpu);
1504 int find_acpi_cpu_topology_package(unsigned int cpu);
1505 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1506 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1507 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1508 {
1509 return -EINVAL;
1510 }
find_acpi_cpu_topology(unsigned int cpu,int level)1511 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1512 {
1513 return -EINVAL;
1514 }
find_acpi_cpu_topology_cluster(unsigned int cpu)1515 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1516 {
1517 return -EINVAL;
1518 }
find_acpi_cpu_topology_package(unsigned int cpu)1519 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1520 {
1521 return -EINVAL;
1522 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1523 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1524 {
1525 return -EINVAL;
1526 }
1527 #endif
1528
1529 #ifdef CONFIG_ARM64
1530 void acpi_arm_init(void);
1531 #else
acpi_arm_init(void)1532 static inline void acpi_arm_init(void) { }
1533 #endif
1534
1535 #ifdef CONFIG_RISCV
1536 void acpi_riscv_init(void);
1537 #else
acpi_riscv_init(void)1538 static inline void acpi_riscv_init(void) { }
1539 #endif
1540
1541 #ifdef CONFIG_ACPI_PCC
1542 void acpi_init_pcc(void);
1543 #else
acpi_init_pcc(void)1544 static inline void acpi_init_pcc(void) { }
1545 #endif
1546
1547 #ifdef CONFIG_ACPI_FFH
1548 void acpi_init_ffh(void);
1549 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt,
1550 void **region_ctxt);
1551 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value,
1552 void *region_context);
1553 #else
acpi_init_ffh(void)1554 static inline void acpi_init_ffh(void) { }
1555 #endif
1556
1557 #ifdef CONFIG_ACPI
1558 extern void acpi_device_notify(struct device *dev);
1559 extern void acpi_device_notify_remove(struct device *dev);
1560 #else
acpi_device_notify(struct device * dev)1561 static inline void acpi_device_notify(struct device *dev) { }
acpi_device_notify_remove(struct device * dev)1562 static inline void acpi_device_notify_remove(struct device *dev) { }
1563 #endif
1564
acpi_use_parent_companion(struct device * dev)1565 static inline void acpi_use_parent_companion(struct device *dev)
1566 {
1567 ACPI_COMPANION_SET(dev, ACPI_COMPANION(dev->parent));
1568 }
1569
1570 #ifdef CONFIG_ACPI_HMAT
1571 int hmat_update_target_coordinates(int nid, struct access_coordinate *coord,
1572 enum access_coordinate_class access);
1573 #else
hmat_update_target_coordinates(int nid,struct access_coordinate * coord,enum access_coordinate_class access)1574 static inline int hmat_update_target_coordinates(int nid,
1575 struct access_coordinate *coord,
1576 enum access_coordinate_class access)
1577 {
1578 return -EOPNOTSUPP;
1579 }
1580 #endif
1581
1582 #ifdef CONFIG_ACPI_NUMA
1583 bool acpi_node_backed_by_real_pxm(int nid);
1584 #else
acpi_node_backed_by_real_pxm(int nid)1585 static inline bool acpi_node_backed_by_real_pxm(int nid)
1586 {
1587 return false;
1588 }
1589 #endif
1590
1591 #endif /*_LINUX_ACPI_H*/
1592