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