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/irqdomain.h>
14 #include <linux/resource_ext.h>
15 #include <linux/device.h>
16 #include <linux/property.h>
17 #include <linux/uuid.h>
18
19 #ifndef _LINUX
20 #define _LINUX
21 #endif
22 #include <acpi/acpi.h>
23
24 #ifdef CONFIG_ACPI
25
26 #include <linux/list.h>
27 #include <linux/mod_devicetable.h>
28 #include <linux/dynamic_debug.h>
29 #include <linux/module.h>
30 #include <linux/mutex.h>
31
32 #include <acpi/acpi_bus.h>
33 #include <acpi/acpi_drivers.h>
34 #include <acpi/acpi_numa.h>
35 #include <acpi/acpi_io.h>
36 #include <asm/acpi.h>
37
acpi_device_handle(struct acpi_device * adev)38 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
39 {
40 return adev ? adev->handle : NULL;
41 }
42
43 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
44 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
45 acpi_fwnode_handle(adev) : NULL)
46 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
47 #define ACPI_HANDLE_FWNODE(fwnode) \
48 acpi_device_handle(to_acpi_device_node(fwnode))
49
acpi_alloc_fwnode_static(void)50 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
51 {
52 struct fwnode_handle *fwnode;
53
54 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
55 if (!fwnode)
56 return NULL;
57
58 fwnode_init(fwnode, &acpi_static_fwnode_ops);
59
60 return fwnode;
61 }
62
acpi_free_fwnode_static(struct fwnode_handle * fwnode)63 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
64 {
65 if (WARN_ON(!is_acpi_static_node(fwnode)))
66 return;
67
68 kfree(fwnode);
69 }
70
71 /**
72 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
73 * the PCI-defined class-code information
74 *
75 * @_cls : the class, subclass, prog-if triple for this device
76 * @_msk : the class mask for this device
77 *
78 * This macro is used to create a struct acpi_device_id that matches a
79 * specific PCI class. The .id and .driver_data fields will be left
80 * initialized with the default value.
81 */
82 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
83
has_acpi_companion(struct device * dev)84 static inline bool has_acpi_companion(struct device *dev)
85 {
86 return is_acpi_device_node(dev->fwnode);
87 }
88
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)89 static inline void acpi_preset_companion(struct device *dev,
90 struct acpi_device *parent, u64 addr)
91 {
92 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
93 }
94
acpi_dev_name(struct acpi_device * adev)95 static inline const char *acpi_dev_name(struct acpi_device *adev)
96 {
97 return dev_name(&adev->dev);
98 }
99
100 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
101
102 enum acpi_irq_model_id {
103 ACPI_IRQ_MODEL_PIC = 0,
104 ACPI_IRQ_MODEL_IOAPIC,
105 ACPI_IRQ_MODEL_IOSAPIC,
106 ACPI_IRQ_MODEL_PLATFORM,
107 ACPI_IRQ_MODEL_GIC,
108 ACPI_IRQ_MODEL_LPIC,
109 ACPI_IRQ_MODEL_COUNT
110 };
111
112 extern enum acpi_irq_model_id acpi_irq_model;
113
114 enum acpi_interrupt_id {
115 ACPI_INTERRUPT_PMI = 1,
116 ACPI_INTERRUPT_INIT,
117 ACPI_INTERRUPT_CPEI,
118 ACPI_INTERRUPT_COUNT
119 };
120
121 #define ACPI_SPACE_MEM 0
122
123 enum acpi_address_range_id {
124 ACPI_ADDRESS_RANGE_MEMORY = 1,
125 ACPI_ADDRESS_RANGE_RESERVED = 2,
126 ACPI_ADDRESS_RANGE_ACPI = 3,
127 ACPI_ADDRESS_RANGE_NVS = 4,
128 ACPI_ADDRESS_RANGE_COUNT
129 };
130
131
132 /* Table Handlers */
133 union acpi_subtable_headers {
134 struct acpi_subtable_header common;
135 struct acpi_hmat_structure hmat;
136 struct acpi_prmt_module_header prmt;
137 struct acpi_cedt_header cedt;
138 };
139
140 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
141
142 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
143 const unsigned long end);
144
145 typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header,
146 void *arg, const unsigned long end);
147
148 /* Debugger support */
149
150 struct acpi_debugger_ops {
151 int (*create_thread)(acpi_osd_exec_callback function, void *context);
152 ssize_t (*write_log)(const char *msg);
153 ssize_t (*read_cmd)(char *buffer, size_t length);
154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
155 int (*notify_command_complete)(void);
156 };
157
158 struct acpi_debugger {
159 const struct acpi_debugger_ops *ops;
160 struct module *owner;
161 struct mutex lock;
162 };
163
164 #ifdef CONFIG_ACPI_DEBUGGER
165 int __init acpi_debugger_init(void);
166 int acpi_register_debugger(struct module *owner,
167 const struct acpi_debugger_ops *ops);
168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
170 ssize_t acpi_debugger_write_log(const char *msg);
171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
172 int acpi_debugger_wait_command_ready(void);
173 int acpi_debugger_notify_command_complete(void);
174 #else
acpi_debugger_init(void)175 static inline int acpi_debugger_init(void)
176 {
177 return -ENODEV;
178 }
179
acpi_register_debugger(struct module * owner,const struct acpi_debugger_ops * ops)180 static inline int acpi_register_debugger(struct module *owner,
181 const struct acpi_debugger_ops *ops)
182 {
183 return -ENODEV;
184 }
185
acpi_unregister_debugger(const struct acpi_debugger_ops * ops)186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
187 {
188 }
189
acpi_debugger_create_thread(acpi_osd_exec_callback function,void * context)190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
191 void *context)
192 {
193 return -ENODEV;
194 }
195
acpi_debugger_write_log(const char * msg)196 static inline int acpi_debugger_write_log(const char *msg)
197 {
198 return -ENODEV;
199 }
200
acpi_debugger_read_cmd(char * buffer,u32 buffer_length)201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
202 {
203 return -ENODEV;
204 }
205
acpi_debugger_wait_command_ready(void)206 static inline int acpi_debugger_wait_command_ready(void)
207 {
208 return -ENODEV;
209 }
210
acpi_debugger_notify_command_complete(void)211 static inline int acpi_debugger_notify_command_complete(void)
212 {
213 return -ENODEV;
214 }
215 #endif
216
217 #define BAD_MADT_ENTRY(entry, end) ( \
218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220
221 struct acpi_subtable_proc {
222 int id;
223 acpi_tbl_entry_handler handler;
224 acpi_tbl_entry_handler_arg handler_arg;
225 void *arg;
226 int count;
227 };
228
229 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
230 void __acpi_unmap_table(void __iomem *map, unsigned long size);
231 int early_acpi_boot_init(void);
232 int acpi_boot_init (void);
233 void acpi_boot_table_prepare (void);
234 void acpi_boot_table_init (void);
235 int acpi_mps_check (void);
236 int acpi_numa_init (void);
237
238 int acpi_locate_initial_tables (void);
239 void acpi_reserve_initial_tables (void);
240 void acpi_table_init_complete (void);
241 int acpi_table_init (void);
242
243 #ifdef CONFIG_ACPI_TABLE_LIB
244 #define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI)
245 #define __init_or_acpilib
246 #define __initdata_or_acpilib
247 #else
248 #define EXPORT_SYMBOL_ACPI_LIB(x)
249 #define __init_or_acpilib __init
250 #define __initdata_or_acpilib __initdata
251 #endif
252
253 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
254 int __init_or_acpilib acpi_table_parse_entries(char *id,
255 unsigned long table_size, int entry_id,
256 acpi_tbl_entry_handler handler, unsigned int max_entries);
257 int __init_or_acpilib acpi_table_parse_entries_array(char *id,
258 unsigned long table_size, struct acpi_subtable_proc *proc,
259 int proc_num, unsigned int max_entries);
260 int acpi_table_parse_madt(enum acpi_madt_type id,
261 acpi_tbl_entry_handler handler,
262 unsigned int max_entries);
263 int __init_or_acpilib
264 acpi_table_parse_cedt(enum acpi_cedt_type id,
265 acpi_tbl_entry_handler_arg handler_arg, void *arg);
266
267 int acpi_parse_mcfg (struct acpi_table_header *header);
268 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
269
270 /* the following numa functions are architecture-dependent */
271 void acpi_numa_slit_init (struct acpi_table_slit *slit);
272
273 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
274 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
275 #else
276 static inline void
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity * pa)277 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
278 #endif
279
280 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
281
282 #if defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH)
283 void acpi_arch_dma_setup(struct device *dev);
284 #else
acpi_arch_dma_setup(struct device * dev)285 static inline void acpi_arch_dma_setup(struct device *dev) { }
286 #endif
287
288 #ifdef CONFIG_ARM64
289 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
290 #else
291 static inline void
acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity * pa)292 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
293 #endif
294
295 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
296
297 #ifndef PHYS_CPUID_INVALID
298 typedef u32 phys_cpuid_t;
299 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
300 #endif
301
invalid_logical_cpuid(u32 cpuid)302 static inline bool invalid_logical_cpuid(u32 cpuid)
303 {
304 return (int)cpuid < 0;
305 }
306
invalid_phys_cpuid(phys_cpuid_t phys_id)307 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
308 {
309 return phys_id == PHYS_CPUID_INVALID;
310 }
311
312 /* Validate the processor object's proc_id */
313 bool acpi_duplicate_processor_id(int proc_id);
314 /* Processor _CTS control */
315 struct acpi_processor_power;
316
317 #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
318 bool acpi_processor_claim_cst_control(void);
319 int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
320 struct acpi_processor_power *info);
321 #else
acpi_processor_claim_cst_control(void)322 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)323 static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
324 struct acpi_processor_power *info)
325 {
326 return -ENODEV;
327 }
328 #endif
329
330 #ifdef CONFIG_ACPI_HOTPLUG_CPU
331 /* Arch dependent functions for cpu hotplug support */
332 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
333 int *pcpu);
334 int acpi_unmap_cpu(int cpu);
335 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
336
337 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
338 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
339 #endif
340
341 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
342 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
343 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
344 void acpi_irq_stats_init(void);
345 extern u32 acpi_irq_handled;
346 extern u32 acpi_irq_not_handled;
347 extern unsigned int acpi_sci_irq;
348 extern bool acpi_no_s5;
349 #define INVALID_ACPI_IRQ ((unsigned)-1)
acpi_sci_irq_valid(void)350 static inline bool acpi_sci_irq_valid(void)
351 {
352 return acpi_sci_irq != INVALID_ACPI_IRQ;
353 }
354
355 extern int sbf_port;
356 extern unsigned long acpi_realmode_flags;
357
358 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
359 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
360 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
361
362 void acpi_set_irq_model(enum acpi_irq_model_id model,
363 struct fwnode_handle *(*)(u32));
364 void acpi_set_gsi_to_irq_fallback(u32 (*)(u32));
365
366 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
367 unsigned int size,
368 struct fwnode_handle *fwnode,
369 const struct irq_domain_ops *ops,
370 void *host_data);
371
372 #ifdef CONFIG_X86_IO_APIC
373 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
374 #else
acpi_get_override_irq(u32 gsi,int * trigger,int * polarity)375 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
376 {
377 return -1;
378 }
379 #endif
380 /*
381 * This function undoes the effect of one call to acpi_register_gsi().
382 * If this matches the last registration, any IRQ resources for gsi
383 * are freed.
384 */
385 void acpi_unregister_gsi (u32 gsi);
386
387 struct pci_dev;
388
389 int acpi_pci_irq_enable (struct pci_dev *dev);
390 void acpi_penalize_isa_irq(int irq, int active);
391 bool acpi_isa_irq_available(int irq);
392 #ifdef CONFIG_PCI
393 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
394 #else
acpi_penalize_sci_irq(int irq,int trigger,int polarity)395 static inline void acpi_penalize_sci_irq(int irq, int trigger,
396 int polarity)
397 {
398 }
399 #endif
400 void acpi_pci_irq_disable (struct pci_dev *dev);
401
402 extern int ec_read(u8 addr, u8 *val);
403 extern int ec_write(u8 addr, u8 val);
404 extern int ec_transaction(u8 command,
405 const u8 *wdata, unsigned wdata_len,
406 u8 *rdata, unsigned rdata_len);
407 extern acpi_handle ec_get_handle(void);
408
409 extern bool acpi_is_pnp_device(struct acpi_device *);
410
411 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
412
413 typedef void (*wmi_notify_handler) (u32 value, void *context);
414
415 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
416 u32 method_id,
417 const struct acpi_buffer *in,
418 struct acpi_buffer *out);
419 extern acpi_status wmi_query_block(const char *guid, u8 instance,
420 struct acpi_buffer *out);
421 extern acpi_status wmi_set_block(const char *guid, u8 instance,
422 const struct acpi_buffer *in);
423 extern acpi_status wmi_install_notify_handler(const char *guid,
424 wmi_notify_handler handler, void *data);
425 extern acpi_status wmi_remove_notify_handler(const char *guid);
426 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
427 extern bool wmi_has_guid(const char *guid);
428 extern char *wmi_get_acpi_device_uid(const char *guid);
429
430 #endif /* CONFIG_ACPI_WMI */
431
432 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
433 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
434 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
435 #define ACPI_VIDEO_BACKLIGHT 0x0008
436 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
437 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
438 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
439 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
440 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
441 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
442 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
443 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
444
445 extern char acpi_video_backlight_string[];
446 extern long acpi_is_video_device(acpi_handle handle);
447 extern int acpi_blacklisted(void);
448 extern void acpi_osi_setup(char *str);
449 extern bool acpi_osi_is_win8(void);
450
451 #ifdef CONFIG_ACPI_NUMA
452 int acpi_map_pxm_to_node(int pxm);
453 int acpi_get_node(acpi_handle handle);
454
455 /**
456 * pxm_to_online_node - Map proximity ID to online node
457 * @pxm: ACPI proximity ID
458 *
459 * This is similar to pxm_to_node(), but always returns an online
460 * node. When the mapped node from a given proximity ID is offline, it
461 * looks up the node distance table and returns the nearest online node.
462 *
463 * ACPI device drivers, which are called after the NUMA initialization has
464 * completed in the kernel, can call this interface to obtain their device
465 * NUMA topology from ACPI tables. Such drivers do not have to deal with
466 * offline nodes. A node may be offline when SRAT memory entry does not exist,
467 * or NUMA is disabled, ex. "numa=off" on x86.
468 */
pxm_to_online_node(int pxm)469 static inline int pxm_to_online_node(int pxm)
470 {
471 int node = pxm_to_node(pxm);
472
473 return numa_map_to_online_node(node);
474 }
475 #else
pxm_to_online_node(int pxm)476 static inline int pxm_to_online_node(int pxm)
477 {
478 return 0;
479 }
acpi_map_pxm_to_node(int pxm)480 static inline int acpi_map_pxm_to_node(int pxm)
481 {
482 return 0;
483 }
acpi_get_node(acpi_handle handle)484 static inline int acpi_get_node(acpi_handle handle)
485 {
486 return 0;
487 }
488 #endif
489 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
490
491 extern int pnpacpi_disabled;
492
493 #define PXM_INVAL (-1)
494
495 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
496 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
497 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
498 struct resource_win *win);
499 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
500 struct resource_win *win);
501 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
502 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
503 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
504 struct resource *res);
505
506 void acpi_dev_free_resource_list(struct list_head *list);
507 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
508 int (*preproc)(struct acpi_resource *, void *),
509 void *preproc_data);
510 int acpi_dev_get_dma_resources(struct acpi_device *adev,
511 struct list_head *list);
512 int acpi_dev_get_memory_resources(struct acpi_device *adev, struct list_head *list);
513 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
514 unsigned long types);
515
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)516 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
517 void *arg)
518 {
519 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
520 }
521
522 struct acpi_device *acpi_resource_consumer(struct resource *res);
523
524 int acpi_check_resource_conflict(const struct resource *res);
525
526 int acpi_check_region(resource_size_t start, resource_size_t n,
527 const char *name);
528
529 int acpi_resources_are_enforced(void);
530
531 #ifdef CONFIG_HIBERNATION
532 extern int acpi_check_s4_hw_signature;
533 #endif
534
535 #ifdef CONFIG_PM_SLEEP
536 void __init acpi_old_suspend_ordering(void);
537 void __init acpi_nvs_nosave(void);
538 void __init acpi_nvs_nosave_s3(void);
539 void __init acpi_sleep_no_blacklist(void);
540 #endif /* CONFIG_PM_SLEEP */
541
542 int acpi_register_wakeup_handler(
543 int wake_irq, bool (*wakeup)(void *context), void *context);
544 void acpi_unregister_wakeup_handler(
545 bool (*wakeup)(void *context), void *context);
546
547 struct acpi_osc_context {
548 char *uuid_str; /* UUID string */
549 int rev;
550 struct acpi_buffer cap; /* list of DWORD capabilities */
551 struct acpi_buffer ret; /* free by caller if success */
552 };
553
554 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
555
556 /* Number of _OSC capability DWORDS depends on bridge type */
557 #define OSC_PCI_CAPABILITY_DWORDS 3
558 #define OSC_CXL_CAPABILITY_DWORDS 5
559
560 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 to 5 are device-specific) */
561 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
562 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
563 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
564 #define OSC_EXT_SUPPORT_DWORD 3 /* DWORD 4 */
565 #define OSC_EXT_CONTROL_DWORD 4 /* DWORD 5 */
566
567 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
568 #define OSC_QUERY_ENABLE 0x00000001 /* input */
569 #define OSC_REQUEST_ERROR 0x00000002 /* return */
570 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
571 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
572 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
573
574 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
575 #define OSC_SB_PAD_SUPPORT 0x00000001
576 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
577 #define OSC_SB_PR3_SUPPORT 0x00000004
578 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
579 #define OSC_SB_APEI_SUPPORT 0x00000010
580 #define OSC_SB_CPC_SUPPORT 0x00000020
581 #define OSC_SB_CPCV2_SUPPORT 0x00000040
582 #define OSC_SB_PCLPI_SUPPORT 0x00000080
583 #define OSC_SB_OSLPI_SUPPORT 0x00000100
584 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
585 #define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
586 #define OSC_SB_CPC_FLEXIBLE_ADR_SPACE 0x00004000
587 #define OSC_SB_NATIVE_USB4_SUPPORT 0x00040000
588 #define OSC_SB_PRM_SUPPORT 0x00200000
589 #define OSC_SB_FFH_OPR_SUPPORT 0x00400000
590
591 extern bool osc_sb_apei_support_acked;
592 extern bool osc_pc_lpi_support_confirmed;
593 extern bool osc_sb_native_usb4_support_confirmed;
594 extern bool osc_sb_cppc2_support_acked;
595 extern bool osc_cpc_flexible_adr_space_confirmed;
596
597 /* USB4 Capabilities */
598 #define OSC_USB_USB3_TUNNELING 0x00000001
599 #define OSC_USB_DP_TUNNELING 0x00000002
600 #define OSC_USB_PCIE_TUNNELING 0x00000004
601 #define OSC_USB_XDOMAIN 0x00000008
602
603 extern u32 osc_sb_native_usb4_control;
604
605 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
606 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
607 #define OSC_PCI_ASPM_SUPPORT 0x00000002
608 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
609 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
610 #define OSC_PCI_MSI_SUPPORT 0x00000010
611 #define OSC_PCI_EDR_SUPPORT 0x00000080
612 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
613
614 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
615 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
616 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
617 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
618 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
619 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
620 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
621 #define OSC_PCI_EXPRESS_DPC_CONTROL 0x00000080
622
623 /* CXL _OSC: Capabilities DWORD 4: Support Field */
624 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT 0x00000001
625 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT 0x00000002
626 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT 0x00000004
627 #define OSC_CXL_NATIVE_HP_SUPPORT 0x00000008
628
629 /* CXL _OSC: Capabilities DWORD 5: Control Field */
630 #define OSC_CXL_ERROR_REPORTING_CONTROL 0x00000001
631
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)632 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
633 {
634 u32 *ret = context->ret.pointer;
635
636 return ret[OSC_CONTROL_DWORD];
637 }
638
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)639 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
640 {
641 u32 *ret = context->ret.pointer;
642
643 return ret[OSC_EXT_CONTROL_DWORD];
644 }
645
646 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
647 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
648 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
649 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
650 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
651 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
652 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
653 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
655 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
656
657 /* Enable _OST when all relevant hotplug operations are enabled */
658 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
659 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
660 defined(CONFIG_ACPI_CONTAINER)
661 #define ACPI_HOTPLUG_OST
662 #endif
663
664 /* _OST Source Event Code (OSPM Action) */
665 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
666 #define ACPI_OST_EC_OSPM_EJECT 0x103
667 #define ACPI_OST_EC_OSPM_INSERTION 0x200
668
669 /* _OST General Processing Status Code */
670 #define ACPI_OST_SC_SUCCESS 0x0
671 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
672 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
673
674 /* _OST OS Shutdown Processing (0x100) Status Code */
675 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
676 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
677 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
678 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
679
680 /* _OST Ejection Request (0x3, 0x103) Status Code */
681 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
682 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
683 #define ACPI_OST_SC_DEVICE_BUSY 0x82
684 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
685 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
686
687 /* _OST Insertion Request (0x200) Status Code */
688 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
689 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
690 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
691
692 enum acpi_predicate {
693 all_versions,
694 less_than_or_equal,
695 equal,
696 greater_than_or_equal,
697 };
698
699 /* Table must be terminted by a NULL entry */
700 struct acpi_platform_list {
701 char oem_id[ACPI_OEM_ID_SIZE+1];
702 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
703 u32 oem_revision;
704 char *table;
705 enum acpi_predicate pred;
706 char *reason;
707 u32 data;
708 };
709 int acpi_match_platform_list(const struct acpi_platform_list *plat);
710
711 extern void acpi_early_init(void);
712 extern void acpi_subsystem_init(void);
713 extern void arch_post_acpi_subsys_init(void);
714
715 extern int acpi_nvs_register(__u64 start, __u64 size);
716
717 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
718 void *data);
719
720 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
721 const struct device *dev);
722
723 const void *acpi_device_get_match_data(const struct device *dev);
724 extern bool acpi_driver_match_device(struct device *dev,
725 const struct device_driver *drv);
726 int acpi_device_uevent_modalias(const struct device *, struct kobj_uevent_env *);
727 int acpi_device_modalias(struct device *, char *, int);
728
729 struct platform_device *acpi_create_platform_device(struct acpi_device *,
730 const struct property_entry *);
731 #define ACPI_PTR(_ptr) (_ptr)
732
acpi_device_set_enumerated(struct acpi_device * adev)733 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
734 {
735 adev->flags.visited = true;
736 }
737
acpi_device_clear_enumerated(struct acpi_device * adev)738 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
739 {
740 adev->flags.visited = false;
741 }
742
743 enum acpi_reconfig_event {
744 ACPI_RECONFIG_DEVICE_ADD = 0,
745 ACPI_RECONFIG_DEVICE_REMOVE,
746 };
747
748 int acpi_reconfig_notifier_register(struct notifier_block *nb);
749 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
750
751 #ifdef CONFIG_ACPI_GTDT
752 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
753 int acpi_gtdt_map_ppi(int type);
754 bool acpi_gtdt_c3stop(int type);
755 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
756 #endif
757
758 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)759 static inline void acpi_arch_set_root_pointer(u64 addr)
760 {
761 }
762 #endif
763
764 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)765 static inline u64 acpi_arch_get_root_pointer(void)
766 {
767 return 0;
768 }
769 #endif
770
771 int acpi_get_local_address(acpi_handle handle, u32 *addr);
772 const char *acpi_get_subsystem_id(acpi_handle handle);
773
774 #else /* !CONFIG_ACPI */
775
776 #define acpi_disabled 1
777
778 #define ACPI_COMPANION(dev) (NULL)
779 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
780 #define ACPI_HANDLE(dev) (NULL)
781 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
782 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
783
784 #include <acpi/acpi_numa.h>
785
786 struct fwnode_handle;
787
acpi_dev_found(const char * hid)788 static inline bool acpi_dev_found(const char *hid)
789 {
790 return false;
791 }
792
acpi_dev_present(const char * hid,const char * uid,s64 hrv)793 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
794 {
795 return false;
796 }
797
798 struct acpi_device;
799
800 static inline bool
acpi_dev_hid_uid_match(struct acpi_device * adev,const char * hid2,const char * uid2)801 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
802 {
803 return false;
804 }
805
acpi_dev_uid_to_integer(struct acpi_device * adev,u64 * integer)806 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
807 {
808 return -ENODEV;
809 }
810
811 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)812 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
813 {
814 return NULL;
815 }
816
acpi_reduced_hardware(void)817 static inline bool acpi_reduced_hardware(void)
818 {
819 return false;
820 }
821
acpi_dev_put(struct acpi_device * adev)822 static inline void acpi_dev_put(struct acpi_device *adev) {}
823
is_acpi_node(const struct fwnode_handle * fwnode)824 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
825 {
826 return false;
827 }
828
is_acpi_device_node(const struct fwnode_handle * fwnode)829 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
830 {
831 return false;
832 }
833
to_acpi_device_node(const struct fwnode_handle * fwnode)834 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
835 {
836 return NULL;
837 }
838
is_acpi_data_node(const struct fwnode_handle * fwnode)839 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
840 {
841 return false;
842 }
843
to_acpi_data_node(const struct fwnode_handle * fwnode)844 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
845 {
846 return NULL;
847 }
848
acpi_data_node_match(const struct fwnode_handle * fwnode,const char * name)849 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
850 const char *name)
851 {
852 return false;
853 }
854
acpi_fwnode_handle(struct acpi_device * adev)855 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
856 {
857 return NULL;
858 }
859
has_acpi_companion(struct device * dev)860 static inline bool has_acpi_companion(struct device *dev)
861 {
862 return false;
863 }
864
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)865 static inline void acpi_preset_companion(struct device *dev,
866 struct acpi_device *parent, u64 addr)
867 {
868 }
869
acpi_dev_name(struct acpi_device * adev)870 static inline const char *acpi_dev_name(struct acpi_device *adev)
871 {
872 return NULL;
873 }
874
acpi_get_first_physical_node(struct acpi_device * adev)875 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
876 {
877 return NULL;
878 }
879
acpi_early_init(void)880 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)881 static inline void acpi_subsystem_init(void) { }
882
early_acpi_boot_init(void)883 static inline int early_acpi_boot_init(void)
884 {
885 return 0;
886 }
acpi_boot_init(void)887 static inline int acpi_boot_init(void)
888 {
889 return 0;
890 }
891
acpi_boot_table_prepare(void)892 static inline void acpi_boot_table_prepare(void)
893 {
894 }
895
acpi_boot_table_init(void)896 static inline void acpi_boot_table_init(void)
897 {
898 }
899
acpi_mps_check(void)900 static inline int acpi_mps_check(void)
901 {
902 return 0;
903 }
904
acpi_check_resource_conflict(struct resource * res)905 static inline int acpi_check_resource_conflict(struct resource *res)
906 {
907 return 0;
908 }
909
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)910 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
911 const char *name)
912 {
913 return 0;
914 }
915
916 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))917 static inline int acpi_table_parse(char *id,
918 int (*handler)(struct acpi_table_header *))
919 {
920 return -ENODEV;
921 }
922
acpi_nvs_register(__u64 start,__u64 size)923 static inline int acpi_nvs_register(__u64 start, __u64 size)
924 {
925 return 0;
926 }
927
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)928 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
929 void *data)
930 {
931 return 0;
932 }
933
934 struct acpi_device_id;
935
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)936 static inline const struct acpi_device_id *acpi_match_device(
937 const struct acpi_device_id *ids, const struct device *dev)
938 {
939 return NULL;
940 }
941
acpi_device_get_match_data(const struct device * dev)942 static inline const void *acpi_device_get_match_data(const struct device *dev)
943 {
944 return NULL;
945 }
946
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)947 static inline bool acpi_driver_match_device(struct device *dev,
948 const struct device_driver *drv)
949 {
950 return false;
951 }
952
acpi_check_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 funcs)953 static inline bool acpi_check_dsm(acpi_handle handle, const guid_t *guid,
954 u64 rev, u64 funcs)
955 {
956 return false;
957 }
958
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4)959 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
960 const guid_t *guid,
961 u64 rev, u64 func,
962 union acpi_object *argv4)
963 {
964 return NULL;
965 }
966
acpi_evaluate_dsm_typed(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4,acpi_object_type type)967 static inline union acpi_object *acpi_evaluate_dsm_typed(acpi_handle handle,
968 const guid_t *guid,
969 u64 rev, u64 func,
970 union acpi_object *argv4,
971 acpi_object_type type)
972 {
973 return NULL;
974 }
975
acpi_device_uevent_modalias(const struct device * dev,struct kobj_uevent_env * env)976 static inline int acpi_device_uevent_modalias(const struct device *dev,
977 struct kobj_uevent_env *env)
978 {
979 return -ENODEV;
980 }
981
acpi_device_modalias(struct device * dev,char * buf,int size)982 static inline int acpi_device_modalias(struct device *dev,
983 char *buf, int size)
984 {
985 return -ENODEV;
986 }
987
988 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,const struct property_entry * properties)989 acpi_create_platform_device(struct acpi_device *adev,
990 const struct property_entry *properties)
991 {
992 return NULL;
993 }
994
acpi_dma_supported(const struct acpi_device * adev)995 static inline bool acpi_dma_supported(const struct acpi_device *adev)
996 {
997 return false;
998 }
999
acpi_get_dma_attr(struct acpi_device * adev)1000 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
1001 {
1002 return DEV_DMA_NOT_SUPPORTED;
1003 }
1004
acpi_dma_get_range(struct device * dev,const struct bus_dma_region ** map)1005 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
1006 {
1007 return -ENODEV;
1008 }
1009
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)1010 static inline int acpi_dma_configure(struct device *dev,
1011 enum dev_dma_attr attr)
1012 {
1013 return 0;
1014 }
1015
acpi_dma_configure_id(struct device * dev,enum dev_dma_attr attr,const u32 * input_id)1016 static inline int acpi_dma_configure_id(struct device *dev,
1017 enum dev_dma_attr attr,
1018 const u32 *input_id)
1019 {
1020 return 0;
1021 }
1022
1023 #define ACPI_PTR(_ptr) (NULL)
1024
acpi_device_set_enumerated(struct acpi_device * adev)1025 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1026 {
1027 }
1028
acpi_device_clear_enumerated(struct acpi_device * adev)1029 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1030 {
1031 }
1032
acpi_reconfig_notifier_register(struct notifier_block * nb)1033 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1034 {
1035 return -EINVAL;
1036 }
1037
acpi_reconfig_notifier_unregister(struct notifier_block * nb)1038 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1039 {
1040 return -EINVAL;
1041 }
1042
acpi_resource_consumer(struct resource * res)1043 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1044 {
1045 return NULL;
1046 }
1047
acpi_get_local_address(acpi_handle handle,u32 * addr)1048 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1049 {
1050 return -ENODEV;
1051 }
1052
acpi_get_subsystem_id(acpi_handle handle)1053 static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1054 {
1055 return ERR_PTR(-ENODEV);
1056 }
1057
acpi_register_wakeup_handler(int wake_irq,bool (* wakeup)(void * context),void * context)1058 static inline int acpi_register_wakeup_handler(int wake_irq,
1059 bool (*wakeup)(void *context), void *context)
1060 {
1061 return -ENXIO;
1062 }
1063
acpi_unregister_wakeup_handler(bool (* wakeup)(void * context),void * context)1064 static inline void acpi_unregister_wakeup_handler(
1065 bool (*wakeup)(void *context), void *context) { }
1066
1067 struct acpi_osc_context;
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)1068 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1069 {
1070 return 0;
1071 }
1072
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)1073 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1074 {
1075 return 0;
1076 }
1077
1078 #endif /* !CONFIG_ACPI */
1079
1080 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1081 int acpi_ioapic_add(acpi_handle root);
1082 #else
acpi_ioapic_add(acpi_handle root)1083 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1084 #endif
1085
1086 #ifdef CONFIG_ACPI
1087 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1088 u32 pm1a_ctrl, u32 pm1b_ctrl));
1089
1090 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1091 u32 pm1a_control, u32 pm1b_control);
1092
1093 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1094 u32 val_a, u32 val_b));
1095
1096 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1097 u32 val_a, u32 val_b);
1098 #ifdef CONFIG_X86
1099 struct acpi_s2idle_dev_ops {
1100 struct list_head list_node;
1101 void (*prepare)(void);
1102 void (*check)(void);
1103 void (*restore)(void);
1104 };
1105 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1106 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1107 #endif /* CONFIG_X86 */
1108 #ifndef CONFIG_IA64
1109 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1110 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)1111 static inline void arch_reserve_mem_area(acpi_physical_address addr,
1112 size_t size)
1113 {
1114 }
1115 #endif /* CONFIG_X86 */
1116 #else
1117 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1118 #endif
1119
1120 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1121 int acpi_dev_suspend(struct device *dev, bool wakeup);
1122 int acpi_dev_resume(struct device *dev);
1123 int acpi_subsys_runtime_suspend(struct device *dev);
1124 int acpi_subsys_runtime_resume(struct device *dev);
1125 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1126 bool acpi_storage_d3(struct device *dev);
1127 bool acpi_dev_state_d0(struct device *dev);
1128 #else
acpi_subsys_runtime_suspend(struct device * dev)1129 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)1130 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)1131 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1132 {
1133 return 0;
1134 }
acpi_storage_d3(struct device * dev)1135 static inline bool acpi_storage_d3(struct device *dev)
1136 {
1137 return false;
1138 }
acpi_dev_state_d0(struct device * dev)1139 static inline bool acpi_dev_state_d0(struct device *dev)
1140 {
1141 return true;
1142 }
1143 #endif
1144
1145 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1146 int acpi_subsys_prepare(struct device *dev);
1147 void acpi_subsys_complete(struct device *dev);
1148 int acpi_subsys_suspend_late(struct device *dev);
1149 int acpi_subsys_suspend_noirq(struct device *dev);
1150 int acpi_subsys_suspend(struct device *dev);
1151 int acpi_subsys_freeze(struct device *dev);
1152 int acpi_subsys_poweroff(struct device *dev);
1153 void acpi_ec_mark_gpe_for_wake(void);
1154 void acpi_ec_set_gpe_wake_mask(u8 action);
1155 int acpi_subsys_restore_early(struct device *dev);
1156 #else
acpi_subsys_prepare(struct device * dev)1157 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)1158 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)1159 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)1160 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)1161 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)1162 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)1163 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_subsys_restore_early(struct device * dev)1164 static inline int acpi_subsys_restore_early(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)1165 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)1166 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1167 #endif
1168
1169 #ifdef CONFIG_ACPI
1170 __printf(3, 4)
1171 void acpi_handle_printk(const char *level, acpi_handle handle,
1172 const char *fmt, ...);
1173 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1174 acpi_status status);
1175 #else /* !CONFIG_ACPI */
1176 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)1177 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
acpi_evaluation_failure_warn(acpi_handle handle,const char * name,acpi_status status)1178 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1179 const char *name,
1180 acpi_status status) {}
1181 #endif /* !CONFIG_ACPI */
1182
1183 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1184 __printf(3, 4)
1185 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1186 #endif
1187
1188 /*
1189 * acpi_handle_<level>: Print message with ACPI prefix and object path
1190 *
1191 * These interfaces acquire the global namespace mutex to obtain an object
1192 * path. In interrupt context, it shows the object path as <n/a>.
1193 */
1194 #define acpi_handle_emerg(handle, fmt, ...) \
1195 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1196 #define acpi_handle_alert(handle, fmt, ...) \
1197 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1198 #define acpi_handle_crit(handle, fmt, ...) \
1199 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1200 #define acpi_handle_err(handle, fmt, ...) \
1201 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1202 #define acpi_handle_warn(handle, fmt, ...) \
1203 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1204 #define acpi_handle_notice(handle, fmt, ...) \
1205 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1206 #define acpi_handle_info(handle, fmt, ...) \
1207 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1208
1209 #if defined(DEBUG)
1210 #define acpi_handle_debug(handle, fmt, ...) \
1211 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1212 #else
1213 #if defined(CONFIG_DYNAMIC_DEBUG)
1214 #define acpi_handle_debug(handle, fmt, ...) \
1215 _dynamic_func_call(fmt, __acpi_handle_debug, \
1216 handle, pr_fmt(fmt), ##__VA_ARGS__)
1217 #else
1218 #define acpi_handle_debug(handle, fmt, ...) \
1219 ({ \
1220 if (0) \
1221 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1222 0; \
1223 })
1224 #endif
1225 #endif
1226
1227 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1228 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1229 struct acpi_resource_gpio **agpio);
1230 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1231 struct acpi_resource_gpio **agpio);
1232 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index,
1233 bool *wake_capable);
1234 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1235 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1236 struct acpi_resource_gpio **agpio)
1237 {
1238 return false;
1239 }
acpi_gpio_get_io_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1240 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1241 struct acpi_resource_gpio **agpio)
1242 {
1243 return false;
1244 }
acpi_dev_gpio_irq_wake_get_by(struct acpi_device * adev,const char * name,int index,bool * wake_capable)1245 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name,
1246 int index, bool *wake_capable)
1247 {
1248 return -ENXIO;
1249 }
1250 #endif
1251
acpi_dev_gpio_irq_wake_get(struct acpi_device * adev,int index,bool * wake_capable)1252 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1253 bool *wake_capable)
1254 {
1255 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1256 }
1257
acpi_dev_gpio_irq_get_by(struct acpi_device * adev,const char * name,int index)1258 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name,
1259 int index)
1260 {
1261 return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL);
1262 }
1263
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1264 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1265 {
1266 return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1267 }
1268
1269 /* Device properties */
1270
1271 #ifdef CONFIG_ACPI
1272 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1273 acpi_object_type type, const union acpi_object **obj);
1274 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1275 const char *name, size_t index, size_t num_args,
1276 struct fwnode_reference_args *args);
1277
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1278 static inline int acpi_node_get_property_reference(
1279 const struct fwnode_handle *fwnode,
1280 const char *name, size_t index,
1281 struct fwnode_reference_args *args)
1282 {
1283 return __acpi_node_get_property_reference(fwnode, name, index,
1284 NR_FWNODE_REFERENCE_ARGS, args);
1285 }
1286
acpi_dev_has_props(const struct acpi_device * adev)1287 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1288 {
1289 return !list_empty(&adev->data.properties);
1290 }
1291
1292 struct acpi_device_properties *
1293 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1294 union acpi_object *properties);
1295
1296 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1297 void **valptr);
1298
1299 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1300 struct fwnode_handle *child);
1301
1302 struct acpi_probe_entry;
1303 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1304 struct acpi_probe_entry *);
1305
1306 #define ACPI_TABLE_ID_LEN 5
1307
1308 /**
1309 * struct acpi_probe_entry - boot-time probing entry
1310 * @id: ACPI table name
1311 * @type: Optional subtable type to match
1312 * (if @id contains subtables)
1313 * @subtable_valid: Optional callback to check the validity of
1314 * the subtable
1315 * @probe_table: Callback to the driver being probed when table
1316 * match is successful
1317 * @probe_subtbl: Callback to the driver being probed when table and
1318 * subtable match (and optional callback is successful)
1319 * @driver_data: Sideband data provided back to the driver
1320 */
1321 struct acpi_probe_entry {
1322 __u8 id[ACPI_TABLE_ID_LEN];
1323 __u8 type;
1324 acpi_probe_entry_validate_subtbl subtable_valid;
1325 union {
1326 acpi_tbl_table_handler probe_table;
1327 acpi_tbl_entry_handler probe_subtbl;
1328 };
1329 kernel_ulong_t driver_data;
1330 };
1331
1332 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, \
1333 valid, data, fn) \
1334 static const struct acpi_probe_entry __acpi_probe_##name \
1335 __used __section("__" #table "_acpi_probe_table") = { \
1336 .id = table_id, \
1337 .type = subtable, \
1338 .subtable_valid = valid, \
1339 .probe_table = fn, \
1340 .driver_data = data, \
1341 }
1342
1343 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id, \
1344 subtable, valid, data, fn) \
1345 static const struct acpi_probe_entry __acpi_probe_##name \
1346 __used __section("__" #table "_acpi_probe_table") = { \
1347 .id = table_id, \
1348 .type = subtable, \
1349 .subtable_valid = valid, \
1350 .probe_subtbl = fn, \
1351 .driver_data = data, \
1352 }
1353
1354 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1355 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1356
1357 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1358
1359 #define acpi_probe_device_table(t) \
1360 ({ \
1361 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1362 ACPI_PROBE_TABLE_END(t); \
1363 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1364 (&ACPI_PROBE_TABLE_END(t) - \
1365 &ACPI_PROBE_TABLE(t))); \
1366 })
1367 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1368 static inline int acpi_dev_get_property(struct acpi_device *adev,
1369 const char *name, acpi_object_type type,
1370 const union acpi_object **obj)
1371 {
1372 return -ENXIO;
1373 }
1374
1375 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)1376 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1377 const char *name, size_t index, size_t num_args,
1378 struct fwnode_reference_args *args)
1379 {
1380 return -ENXIO;
1381 }
1382
1383 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1384 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1385 const char *name, size_t index,
1386 struct fwnode_reference_args *args)
1387 {
1388 return -ENXIO;
1389 }
1390
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1391 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1392 const char *propname,
1393 void **valptr)
1394 {
1395 return -ENXIO;
1396 }
1397
1398 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1399 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1400 struct fwnode_handle *child)
1401 {
1402 return NULL;
1403 }
1404
1405 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1406 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1407 struct fwnode_handle *prev)
1408 {
1409 return ERR_PTR(-ENXIO);
1410 }
1411
1412 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)1413 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1414 struct fwnode_handle **remote,
1415 struct fwnode_handle **port,
1416 struct fwnode_handle **endpoint)
1417 {
1418 return -ENXIO;
1419 }
1420
1421 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1422 static const void * __acpi_table_##name[] \
1423 __attribute__((unused)) \
1424 = { (void *) table_id, \
1425 (void *) subtable, \
1426 (void *) valid, \
1427 (void *) fn, \
1428 (void *) data }
1429
1430 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1431 #endif
1432
1433 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1434 void acpi_table_upgrade(void);
1435 #else
acpi_table_upgrade(void)1436 static inline void acpi_table_upgrade(void) { }
1437 #endif
1438
1439 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1440 extern bool acpi_has_watchdog(void);
1441 #else
acpi_has_watchdog(void)1442 static inline bool acpi_has_watchdog(void) { return false; }
1443 #endif
1444
1445 #ifdef CONFIG_ACPI_SPCR_TABLE
1446 extern bool qdf2400_e44_present;
1447 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1448 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1449 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1450 {
1451 return 0;
1452 }
1453 #endif
1454
1455 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1456 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1457 #else
1458 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1459 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1460 {
1461 return -EINVAL;
1462 }
1463 #endif
1464
1465 #ifdef CONFIG_ACPI_LPIT
1466 int lpit_read_residency_count_address(u64 *address);
1467 #else
lpit_read_residency_count_address(u64 * address)1468 static inline int lpit_read_residency_count_address(u64 *address)
1469 {
1470 return -EINVAL;
1471 }
1472 #endif
1473
1474 #ifdef CONFIG_ACPI_PPTT
1475 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1476 int find_acpi_cpu_topology(unsigned int cpu, int level);
1477 int find_acpi_cpu_topology_cluster(unsigned int cpu);
1478 int find_acpi_cpu_topology_package(unsigned int cpu);
1479 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1480 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1481 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1482 {
1483 return -EINVAL;
1484 }
find_acpi_cpu_topology(unsigned int cpu,int level)1485 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1486 {
1487 return -EINVAL;
1488 }
find_acpi_cpu_topology_cluster(unsigned int cpu)1489 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1490 {
1491 return -EINVAL;
1492 }
find_acpi_cpu_topology_package(unsigned int cpu)1493 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1494 {
1495 return -EINVAL;
1496 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1497 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1498 {
1499 return -EINVAL;
1500 }
1501 #endif
1502
1503 #ifdef CONFIG_ACPI_PCC
1504 void acpi_init_pcc(void);
1505 #else
acpi_init_pcc(void)1506 static inline void acpi_init_pcc(void) { }
1507 #endif
1508
1509 #ifdef CONFIG_ACPI_FFH
1510 void acpi_init_ffh(void);
1511 extern int acpi_ffh_address_space_arch_setup(void *handler_ctxt,
1512 void **region_ctxt);
1513 extern int acpi_ffh_address_space_arch_handler(acpi_integer *value,
1514 void *region_context);
1515 #else
acpi_init_ffh(void)1516 static inline void acpi_init_ffh(void) { }
1517 #endif
1518
1519 #ifdef CONFIG_ACPI
1520 extern void acpi_device_notify(struct device *dev);
1521 extern void acpi_device_notify_remove(struct device *dev);
1522 #else
acpi_device_notify(struct device * dev)1523 static inline void acpi_device_notify(struct device *dev) { }
acpi_device_notify_remove(struct device * dev)1524 static inline void acpi_device_notify_remove(struct device *dev) { }
1525 #endif
1526
1527 #endif /*_LINUX_ACPI_H*/
1528