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 
590 extern bool osc_sb_apei_support_acked;
591 extern bool osc_pc_lpi_support_confirmed;
592 extern bool osc_sb_native_usb4_support_confirmed;
593 extern bool osc_sb_cppc2_support_acked;
594 extern bool osc_cpc_flexible_adr_space_confirmed;
595 
596 /* USB4 Capabilities */
597 #define OSC_USB_USB3_TUNNELING			0x00000001
598 #define OSC_USB_DP_TUNNELING			0x00000002
599 #define OSC_USB_PCIE_TUNNELING			0x00000004
600 #define OSC_USB_XDOMAIN				0x00000008
601 
602 extern u32 osc_sb_native_usb4_control;
603 
604 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
605 #define OSC_PCI_EXT_CONFIG_SUPPORT		0x00000001
606 #define OSC_PCI_ASPM_SUPPORT			0x00000002
607 #define OSC_PCI_CLOCK_PM_SUPPORT		0x00000004
608 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT		0x00000008
609 #define OSC_PCI_MSI_SUPPORT			0x00000010
610 #define OSC_PCI_EDR_SUPPORT			0x00000080
611 #define OSC_PCI_HPX_TYPE_3_SUPPORT		0x00000100
612 
613 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
614 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	0x00000001
615 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL		0x00000002
616 #define OSC_PCI_EXPRESS_PME_CONTROL		0x00000004
617 #define OSC_PCI_EXPRESS_AER_CONTROL		0x00000008
618 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL	0x00000010
619 #define OSC_PCI_EXPRESS_LTR_CONTROL		0x00000020
620 #define OSC_PCI_EXPRESS_DPC_CONTROL		0x00000080
621 
622 /* CXL _OSC: Capabilities DWORD 4: Support Field */
623 #define OSC_CXL_1_1_PORT_REG_ACCESS_SUPPORT	0x00000001
624 #define OSC_CXL_2_0_PORT_DEV_REG_ACCESS_SUPPORT	0x00000002
625 #define OSC_CXL_PROTOCOL_ERR_REPORTING_SUPPORT	0x00000004
626 #define OSC_CXL_NATIVE_HP_SUPPORT		0x00000008
627 
628 /* CXL _OSC: Capabilities DWORD 5: Control Field */
629 #define OSC_CXL_ERROR_REPORTING_CONTROL		0x00000001
630 
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)631 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
632 {
633 	u32 *ret = context->ret.pointer;
634 
635 	return ret[OSC_CONTROL_DWORD];
636 }
637 
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)638 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
639 {
640 	u32 *ret = context->ret.pointer;
641 
642 	return ret[OSC_EXT_CONTROL_DWORD];
643 }
644 
645 #define ACPI_GSB_ACCESS_ATTRIB_QUICK		0x00000002
646 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
647 #define ACPI_GSB_ACCESS_ATTRIB_BYTE		0x00000006
648 #define ACPI_GSB_ACCESS_ATTRIB_WORD		0x00000008
649 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK		0x0000000A
650 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE	0x0000000B
651 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL	0x0000000C
652 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL	0x0000000D
653 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES	0x0000000E
654 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS	0x0000000F
655 
656 /* Enable _OST when all relevant hotplug operations are enabled */
657 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&			\
658 	defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&		\
659 	defined(CONFIG_ACPI_CONTAINER)
660 #define ACPI_HOTPLUG_OST
661 #endif
662 
663 /* _OST Source Event Code (OSPM Action) */
664 #define ACPI_OST_EC_OSPM_SHUTDOWN		0x100
665 #define ACPI_OST_EC_OSPM_EJECT			0x103
666 #define ACPI_OST_EC_OSPM_INSERTION		0x200
667 
668 /* _OST General Processing Status Code */
669 #define ACPI_OST_SC_SUCCESS			0x0
670 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE	0x1
671 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY		0x2
672 
673 /* _OST OS Shutdown Processing (0x100) Status Code */
674 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED		0x80
675 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS	0x81
676 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED	0x82
677 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED	0x83
678 
679 /* _OST Ejection Request (0x3, 0x103) Status Code */
680 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED		0x80
681 #define ACPI_OST_SC_DEVICE_IN_USE		0x81
682 #define ACPI_OST_SC_DEVICE_BUSY			0x82
683 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY	0x83
684 #define ACPI_OST_SC_EJECT_IN_PROGRESS		0x84
685 
686 /* _OST Insertion Request (0x200) Status Code */
687 #define ACPI_OST_SC_INSERT_IN_PROGRESS		0x80
688 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE		0x81
689 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED	0x82
690 
691 enum acpi_predicate {
692 	all_versions,
693 	less_than_or_equal,
694 	equal,
695 	greater_than_or_equal,
696 };
697 
698 /* Table must be terminted by a NULL entry */
699 struct acpi_platform_list {
700 	char	oem_id[ACPI_OEM_ID_SIZE+1];
701 	char	oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
702 	u32	oem_revision;
703 	char	*table;
704 	enum acpi_predicate pred;
705 	char	*reason;
706 	u32	data;
707 };
708 int acpi_match_platform_list(const struct acpi_platform_list *plat);
709 
710 extern void acpi_early_init(void);
711 extern void acpi_subsystem_init(void);
712 extern void arch_post_acpi_subsys_init(void);
713 
714 extern int acpi_nvs_register(__u64 start, __u64 size);
715 
716 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
717 				    void *data);
718 
719 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
720 					       const struct device *dev);
721 
722 const void *acpi_device_get_match_data(const struct device *dev);
723 extern bool acpi_driver_match_device(struct device *dev,
724 				     const struct device_driver *drv);
725 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
726 int acpi_device_modalias(struct device *, char *, int);
727 
728 struct platform_device *acpi_create_platform_device(struct acpi_device *,
729 						    const struct property_entry *);
730 #define ACPI_PTR(_ptr)	(_ptr)
731 
acpi_device_set_enumerated(struct acpi_device * adev)732 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
733 {
734 	adev->flags.visited = true;
735 }
736 
acpi_device_clear_enumerated(struct acpi_device * adev)737 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
738 {
739 	adev->flags.visited = false;
740 }
741 
742 enum acpi_reconfig_event  {
743 	ACPI_RECONFIG_DEVICE_ADD = 0,
744 	ACPI_RECONFIG_DEVICE_REMOVE,
745 };
746 
747 int acpi_reconfig_notifier_register(struct notifier_block *nb);
748 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
749 
750 #ifdef CONFIG_ACPI_GTDT
751 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
752 int acpi_gtdt_map_ppi(int type);
753 bool acpi_gtdt_c3stop(int type);
754 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
755 #endif
756 
757 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)758 static inline void acpi_arch_set_root_pointer(u64 addr)
759 {
760 }
761 #endif
762 
763 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)764 static inline u64 acpi_arch_get_root_pointer(void)
765 {
766 	return 0;
767 }
768 #endif
769 
770 int acpi_get_local_address(acpi_handle handle, u32 *addr);
771 const char *acpi_get_subsystem_id(acpi_handle handle);
772 
773 #else	/* !CONFIG_ACPI */
774 
775 #define acpi_disabled 1
776 
777 #define ACPI_COMPANION(dev)		(NULL)
778 #define ACPI_COMPANION_SET(dev, adev)	do { } while (0)
779 #define ACPI_HANDLE(dev)		(NULL)
780 #define ACPI_HANDLE_FWNODE(fwnode)	(NULL)
781 #define ACPI_DEVICE_CLASS(_cls, _msk)	.cls = (0), .cls_msk = (0),
782 
783 #include <acpi/acpi_numa.h>
784 
785 struct fwnode_handle;
786 
acpi_dev_found(const char * hid)787 static inline bool acpi_dev_found(const char *hid)
788 {
789 	return false;
790 }
791 
acpi_dev_present(const char * hid,const char * uid,s64 hrv)792 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
793 {
794 	return false;
795 }
796 
797 struct acpi_device;
798 
799 static inline bool
acpi_dev_hid_uid_match(struct acpi_device * adev,const char * hid2,const char * uid2)800 acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
801 {
802 	return false;
803 }
804 
acpi_dev_uid_to_integer(struct acpi_device * adev,u64 * integer)805 static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
806 {
807 	return -ENODEV;
808 }
809 
810 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)811 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
812 {
813 	return NULL;
814 }
815 
acpi_reduced_hardware(void)816 static inline bool acpi_reduced_hardware(void)
817 {
818 	return false;
819 }
820 
acpi_dev_put(struct acpi_device * adev)821 static inline void acpi_dev_put(struct acpi_device *adev) {}
822 
is_acpi_node(const struct fwnode_handle * fwnode)823 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
824 {
825 	return false;
826 }
827 
is_acpi_device_node(const struct fwnode_handle * fwnode)828 static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
829 {
830 	return false;
831 }
832 
to_acpi_device_node(const struct fwnode_handle * fwnode)833 static inline struct acpi_device *to_acpi_device_node(const struct fwnode_handle *fwnode)
834 {
835 	return NULL;
836 }
837 
is_acpi_data_node(const struct fwnode_handle * fwnode)838 static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
839 {
840 	return false;
841 }
842 
to_acpi_data_node(const struct fwnode_handle * fwnode)843 static inline struct acpi_data_node *to_acpi_data_node(const struct fwnode_handle *fwnode)
844 {
845 	return NULL;
846 }
847 
acpi_data_node_match(const struct fwnode_handle * fwnode,const char * name)848 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
849 					const char *name)
850 {
851 	return false;
852 }
853 
acpi_fwnode_handle(struct acpi_device * adev)854 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
855 {
856 	return NULL;
857 }
858 
has_acpi_companion(struct device * dev)859 static inline bool has_acpi_companion(struct device *dev)
860 {
861 	return false;
862 }
863 
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)864 static inline void acpi_preset_companion(struct device *dev,
865 					 struct acpi_device *parent, u64 addr)
866 {
867 }
868 
acpi_dev_name(struct acpi_device * adev)869 static inline const char *acpi_dev_name(struct acpi_device *adev)
870 {
871 	return NULL;
872 }
873 
acpi_get_first_physical_node(struct acpi_device * adev)874 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
875 {
876 	return NULL;
877 }
878 
acpi_early_init(void)879 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)880 static inline void acpi_subsystem_init(void) { }
881 
early_acpi_boot_init(void)882 static inline int early_acpi_boot_init(void)
883 {
884 	return 0;
885 }
acpi_boot_init(void)886 static inline int acpi_boot_init(void)
887 {
888 	return 0;
889 }
890 
acpi_boot_table_prepare(void)891 static inline void acpi_boot_table_prepare(void)
892 {
893 }
894 
acpi_boot_table_init(void)895 static inline void acpi_boot_table_init(void)
896 {
897 }
898 
acpi_mps_check(void)899 static inline int acpi_mps_check(void)
900 {
901 	return 0;
902 }
903 
acpi_check_resource_conflict(struct resource * res)904 static inline int acpi_check_resource_conflict(struct resource *res)
905 {
906 	return 0;
907 }
908 
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)909 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
910 				    const char *name)
911 {
912 	return 0;
913 }
914 
915 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))916 static inline int acpi_table_parse(char *id,
917 				int (*handler)(struct acpi_table_header *))
918 {
919 	return -ENODEV;
920 }
921 
acpi_nvs_register(__u64 start,__u64 size)922 static inline int acpi_nvs_register(__u64 start, __u64 size)
923 {
924 	return 0;
925 }
926 
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)927 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
928 					   void *data)
929 {
930 	return 0;
931 }
932 
933 struct acpi_device_id;
934 
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)935 static inline const struct acpi_device_id *acpi_match_device(
936 	const struct acpi_device_id *ids, const struct device *dev)
937 {
938 	return NULL;
939 }
940 
acpi_device_get_match_data(const struct device * dev)941 static inline const void *acpi_device_get_match_data(const struct device *dev)
942 {
943 	return NULL;
944 }
945 
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)946 static inline bool acpi_driver_match_device(struct device *dev,
947 					    const struct device_driver *drv)
948 {
949 	return false;
950 }
951 
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,u64 rev,u64 func,union acpi_object * argv4)952 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
953 						   const guid_t *guid,
954 						   u64 rev, u64 func,
955 						   union acpi_object *argv4)
956 {
957 	return NULL;
958 }
959 
acpi_device_uevent_modalias(struct device * dev,struct kobj_uevent_env * env)960 static inline int acpi_device_uevent_modalias(struct device *dev,
961 				struct kobj_uevent_env *env)
962 {
963 	return -ENODEV;
964 }
965 
acpi_device_modalias(struct device * dev,char * buf,int size)966 static inline int acpi_device_modalias(struct device *dev,
967 				char *buf, int size)
968 {
969 	return -ENODEV;
970 }
971 
972 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,const struct property_entry * properties)973 acpi_create_platform_device(struct acpi_device *adev,
974 			    const struct property_entry *properties)
975 {
976 	return NULL;
977 }
978 
acpi_dma_supported(const struct acpi_device * adev)979 static inline bool acpi_dma_supported(const struct acpi_device *adev)
980 {
981 	return false;
982 }
983 
acpi_get_dma_attr(struct acpi_device * adev)984 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
985 {
986 	return DEV_DMA_NOT_SUPPORTED;
987 }
988 
acpi_dma_get_range(struct device * dev,const struct bus_dma_region ** map)989 static inline int acpi_dma_get_range(struct device *dev, const struct bus_dma_region **map)
990 {
991 	return -ENODEV;
992 }
993 
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)994 static inline int acpi_dma_configure(struct device *dev,
995 				     enum dev_dma_attr attr)
996 {
997 	return 0;
998 }
999 
acpi_dma_configure_id(struct device * dev,enum dev_dma_attr attr,const u32 * input_id)1000 static inline int acpi_dma_configure_id(struct device *dev,
1001 					enum dev_dma_attr attr,
1002 					const u32 *input_id)
1003 {
1004 	return 0;
1005 }
1006 
1007 #define ACPI_PTR(_ptr)	(NULL)
1008 
acpi_device_set_enumerated(struct acpi_device * adev)1009 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
1010 {
1011 }
1012 
acpi_device_clear_enumerated(struct acpi_device * adev)1013 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
1014 {
1015 }
1016 
acpi_reconfig_notifier_register(struct notifier_block * nb)1017 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
1018 {
1019 	return -EINVAL;
1020 }
1021 
acpi_reconfig_notifier_unregister(struct notifier_block * nb)1022 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
1023 {
1024 	return -EINVAL;
1025 }
1026 
acpi_resource_consumer(struct resource * res)1027 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
1028 {
1029 	return NULL;
1030 }
1031 
acpi_get_local_address(acpi_handle handle,u32 * addr)1032 static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
1033 {
1034 	return -ENODEV;
1035 }
1036 
acpi_get_subsystem_id(acpi_handle handle)1037 static inline const char *acpi_get_subsystem_id(acpi_handle handle)
1038 {
1039 	return ERR_PTR(-ENODEV);
1040 }
1041 
acpi_register_wakeup_handler(int wake_irq,bool (* wakeup)(void * context),void * context)1042 static inline int acpi_register_wakeup_handler(int wake_irq,
1043 	bool (*wakeup)(void *context), void *context)
1044 {
1045 	return -ENXIO;
1046 }
1047 
acpi_unregister_wakeup_handler(bool (* wakeup)(void * context),void * context)1048 static inline void acpi_unregister_wakeup_handler(
1049 	bool (*wakeup)(void *context), void *context) { }
1050 
1051 struct acpi_osc_context;
acpi_osc_ctx_get_pci_control(struct acpi_osc_context * context)1052 static inline u32 acpi_osc_ctx_get_pci_control(struct acpi_osc_context *context)
1053 {
1054 	return 0;
1055 }
1056 
acpi_osc_ctx_get_cxl_control(struct acpi_osc_context * context)1057 static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
1058 {
1059 	return 0;
1060 }
1061 
1062 #endif	/* !CONFIG_ACPI */
1063 
1064 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
1065 int acpi_ioapic_add(acpi_handle root);
1066 #else
acpi_ioapic_add(acpi_handle root)1067 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
1068 #endif
1069 
1070 #ifdef CONFIG_ACPI
1071 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
1072 			       u32 pm1a_ctrl,  u32 pm1b_ctrl));
1073 
1074 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
1075 				  u32 pm1a_control, u32 pm1b_control);
1076 
1077 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
1078 				        u32 val_a,  u32 val_b));
1079 
1080 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
1081 					   u32 val_a, u32 val_b);
1082 #ifdef CONFIG_X86
1083 struct acpi_s2idle_dev_ops {
1084 	struct list_head list_node;
1085 	void (*prepare)(void);
1086 	void (*check)(void);
1087 	void (*restore)(void);
1088 };
1089 int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1090 void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
1091 #endif /* CONFIG_X86 */
1092 #ifndef CONFIG_IA64
1093 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
1094 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)1095 static inline void arch_reserve_mem_area(acpi_physical_address addr,
1096 					  size_t size)
1097 {
1098 }
1099 #endif /* CONFIG_X86 */
1100 #else
1101 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
1102 #endif
1103 
1104 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
1105 int acpi_dev_suspend(struct device *dev, bool wakeup);
1106 int acpi_dev_resume(struct device *dev);
1107 int acpi_subsys_runtime_suspend(struct device *dev);
1108 int acpi_subsys_runtime_resume(struct device *dev);
1109 int acpi_dev_pm_attach(struct device *dev, bool power_on);
1110 bool acpi_storage_d3(struct device *dev);
1111 bool acpi_dev_state_d0(struct device *dev);
1112 #else
acpi_subsys_runtime_suspend(struct device * dev)1113 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)1114 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)1115 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
1116 {
1117 	return 0;
1118 }
acpi_storage_d3(struct device * dev)1119 static inline bool acpi_storage_d3(struct device *dev)
1120 {
1121 	return false;
1122 }
acpi_dev_state_d0(struct device * dev)1123 static inline bool acpi_dev_state_d0(struct device *dev)
1124 {
1125 	return true;
1126 }
1127 #endif
1128 
1129 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
1130 int acpi_subsys_prepare(struct device *dev);
1131 void acpi_subsys_complete(struct device *dev);
1132 int acpi_subsys_suspend_late(struct device *dev);
1133 int acpi_subsys_suspend_noirq(struct device *dev);
1134 int acpi_subsys_suspend(struct device *dev);
1135 int acpi_subsys_freeze(struct device *dev);
1136 int acpi_subsys_poweroff(struct device *dev);
1137 void acpi_ec_mark_gpe_for_wake(void);
1138 void acpi_ec_set_gpe_wake_mask(u8 action);
1139 #else
acpi_subsys_prepare(struct device * dev)1140 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)1141 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)1142 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)1143 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)1144 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)1145 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)1146 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)1147 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)1148 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
1149 #endif
1150 
1151 #ifdef CONFIG_ACPI
1152 __printf(3, 4)
1153 void acpi_handle_printk(const char *level, acpi_handle handle,
1154 			const char *fmt, ...);
1155 void acpi_evaluation_failure_warn(acpi_handle handle, const char *name,
1156 				  acpi_status status);
1157 #else	/* !CONFIG_ACPI */
1158 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)1159 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
acpi_evaluation_failure_warn(acpi_handle handle,const char * name,acpi_status status)1160 static inline void acpi_evaluation_failure_warn(acpi_handle handle,
1161 						const char *name,
1162 						acpi_status status) {}
1163 #endif	/* !CONFIG_ACPI */
1164 
1165 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
1166 __printf(3, 4)
1167 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
1168 #endif
1169 
1170 /*
1171  * acpi_handle_<level>: Print message with ACPI prefix and object path
1172  *
1173  * These interfaces acquire the global namespace mutex to obtain an object
1174  * path.  In interrupt context, it shows the object path as <n/a>.
1175  */
1176 #define acpi_handle_emerg(handle, fmt, ...)				\
1177 	acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
1178 #define acpi_handle_alert(handle, fmt, ...)				\
1179 	acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
1180 #define acpi_handle_crit(handle, fmt, ...)				\
1181 	acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
1182 #define acpi_handle_err(handle, fmt, ...)				\
1183 	acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1184 #define acpi_handle_warn(handle, fmt, ...)				\
1185 	acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1186 #define acpi_handle_notice(handle, fmt, ...)				\
1187 	acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1188 #define acpi_handle_info(handle, fmt, ...)				\
1189 	acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1190 
1191 #if defined(DEBUG)
1192 #define acpi_handle_debug(handle, fmt, ...)				\
1193 	acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1194 #else
1195 #if defined(CONFIG_DYNAMIC_DEBUG)
1196 #define acpi_handle_debug(handle, fmt, ...)				\
1197 	_dynamic_func_call(fmt, __acpi_handle_debug,			\
1198 			   handle, pr_fmt(fmt), ##__VA_ARGS__)
1199 #else
1200 #define acpi_handle_debug(handle, fmt, ...)				\
1201 ({									\
1202 	if (0)								\
1203 		acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1204 	0;								\
1205 })
1206 #endif
1207 #endif
1208 
1209 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1210 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1211 				struct acpi_resource_gpio **agpio);
1212 bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1213 			       struct acpi_resource_gpio **agpio);
1214 int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index,
1215 				  bool *wake_capable);
1216 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1217 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1218 					      struct acpi_resource_gpio **agpio)
1219 {
1220 	return false;
1221 }
acpi_gpio_get_io_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1222 static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
1223 					     struct acpi_resource_gpio **agpio)
1224 {
1225 	return false;
1226 }
acpi_dev_gpio_irq_wake_get_by(struct acpi_device * adev,const char * name,int index,bool * wake_capable)1227 static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name,
1228 						int index, bool *wake_capable)
1229 {
1230 	return -ENXIO;
1231 }
1232 #endif
1233 
acpi_dev_gpio_irq_wake_get(struct acpi_device * adev,int index,bool * wake_capable)1234 static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
1235 					     bool *wake_capable)
1236 {
1237 	return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
1238 }
1239 
acpi_dev_gpio_irq_get_by(struct acpi_device * adev,const char * name,int index)1240 static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name,
1241 					   int index)
1242 {
1243 	return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL);
1244 }
1245 
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1246 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1247 {
1248 	return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
1249 }
1250 
1251 /* Device properties */
1252 
1253 #ifdef CONFIG_ACPI
1254 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1255 			  acpi_object_type type, const union acpi_object **obj);
1256 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1257 				const char *name, size_t index, size_t num_args,
1258 				struct fwnode_reference_args *args);
1259 
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1260 static inline int acpi_node_get_property_reference(
1261 				const struct fwnode_handle *fwnode,
1262 				const char *name, size_t index,
1263 				struct fwnode_reference_args *args)
1264 {
1265 	return __acpi_node_get_property_reference(fwnode, name, index,
1266 		NR_FWNODE_REFERENCE_ARGS, args);
1267 }
1268 
acpi_dev_has_props(const struct acpi_device * adev)1269 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1270 {
1271 	return !list_empty(&adev->data.properties);
1272 }
1273 
1274 struct acpi_device_properties *
1275 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1276 		    union acpi_object *properties);
1277 
1278 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1279 		       void **valptr);
1280 
1281 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1282 					    struct fwnode_handle *child);
1283 
1284 struct acpi_probe_entry;
1285 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1286 						 struct acpi_probe_entry *);
1287 
1288 #define ACPI_TABLE_ID_LEN	5
1289 
1290 /**
1291  * struct acpi_probe_entry - boot-time probing entry
1292  * @id:			ACPI table name
1293  * @type:		Optional subtable type to match
1294  *			(if @id contains subtables)
1295  * @subtable_valid:	Optional callback to check the validity of
1296  *			the subtable
1297  * @probe_table:	Callback to the driver being probed when table
1298  *			match is successful
1299  * @probe_subtbl:	Callback to the driver being probed when table and
1300  *			subtable match (and optional callback is successful)
1301  * @driver_data:	Sideband data provided back to the driver
1302  */
1303 struct acpi_probe_entry {
1304 	__u8 id[ACPI_TABLE_ID_LEN];
1305 	__u8 type;
1306 	acpi_probe_entry_validate_subtbl subtable_valid;
1307 	union {
1308 		acpi_tbl_table_handler probe_table;
1309 		acpi_tbl_entry_handler probe_subtbl;
1310 	};
1311 	kernel_ulong_t driver_data;
1312 };
1313 
1314 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable,	\
1315 				 valid, data, fn)			\
1316 	static const struct acpi_probe_entry __acpi_probe_##name	\
1317 		__used __section("__" #table "_acpi_probe_table") = {	\
1318 			.id = table_id,					\
1319 			.type = subtable,				\
1320 			.subtable_valid = valid,			\
1321 			.probe_table = fn,				\
1322 			.driver_data = data,				\
1323 		}
1324 
1325 #define ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(table, name, table_id,	\
1326 					  subtable, valid, data, fn)	\
1327 	static const struct acpi_probe_entry __acpi_probe_##name	\
1328 		__used __section("__" #table "_acpi_probe_table") = {	\
1329 			.id = table_id,					\
1330 			.type = subtable,				\
1331 			.subtable_valid = valid,			\
1332 			.probe_subtbl = fn,				\
1333 			.driver_data = data,				\
1334 		}
1335 
1336 #define ACPI_PROBE_TABLE(name)		__##name##_acpi_probe_table
1337 #define ACPI_PROBE_TABLE_END(name)	__##name##_acpi_probe_table_end
1338 
1339 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1340 
1341 #define acpi_probe_device_table(t)					\
1342 	({ 								\
1343 		extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),	\
1344 			                       ACPI_PROBE_TABLE_END(t);	\
1345 		__acpi_probe_device_table(&ACPI_PROBE_TABLE(t),		\
1346 					  (&ACPI_PROBE_TABLE_END(t) -	\
1347 					   &ACPI_PROBE_TABLE(t)));	\
1348 	})
1349 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1350 static inline int acpi_dev_get_property(struct acpi_device *adev,
1351 					const char *name, acpi_object_type type,
1352 					const union acpi_object **obj)
1353 {
1354 	return -ENXIO;
1355 }
1356 
1357 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)1358 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1359 				const char *name, size_t index, size_t num_args,
1360 				struct fwnode_reference_args *args)
1361 {
1362 	return -ENXIO;
1363 }
1364 
1365 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1366 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1367 				 const char *name, size_t index,
1368 				 struct fwnode_reference_args *args)
1369 {
1370 	return -ENXIO;
1371 }
1372 
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1373 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1374 				     const char *propname,
1375 				     void **valptr)
1376 {
1377 	return -ENXIO;
1378 }
1379 
1380 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1381 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1382 		      struct fwnode_handle *child)
1383 {
1384 	return NULL;
1385 }
1386 
1387 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1388 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1389 			     struct fwnode_handle *prev)
1390 {
1391 	return ERR_PTR(-ENXIO);
1392 }
1393 
1394 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)1395 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1396 			       struct fwnode_handle **remote,
1397 			       struct fwnode_handle **port,
1398 			       struct fwnode_handle **endpoint)
1399 {
1400 	return -ENXIO;
1401 }
1402 
1403 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1404 	static const void * __acpi_table_##name[]			\
1405 		__attribute__((unused))					\
1406 		 = { (void *) table_id,					\
1407 		     (void *) subtable,					\
1408 		     (void *) valid,					\
1409 		     (void *) fn,					\
1410 		     (void *) data }
1411 
1412 #define acpi_probe_device_table(t)	({ int __r = 0; __r;})
1413 #endif
1414 
1415 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1416 void acpi_table_upgrade(void);
1417 #else
acpi_table_upgrade(void)1418 static inline void acpi_table_upgrade(void) { }
1419 #endif
1420 
1421 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1422 extern bool acpi_has_watchdog(void);
1423 #else
acpi_has_watchdog(void)1424 static inline bool acpi_has_watchdog(void) { return false; }
1425 #endif
1426 
1427 #ifdef CONFIG_ACPI_SPCR_TABLE
1428 extern bool qdf2400_e44_present;
1429 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1430 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1431 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1432 {
1433 	return 0;
1434 }
1435 #endif
1436 
1437 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1438 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1439 #else
1440 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1441 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1442 {
1443 	return -EINVAL;
1444 }
1445 #endif
1446 
1447 #ifdef CONFIG_ACPI_LPIT
1448 int lpit_read_residency_count_address(u64 *address);
1449 #else
lpit_read_residency_count_address(u64 * address)1450 static inline int lpit_read_residency_count_address(u64 *address)
1451 {
1452 	return -EINVAL;
1453 }
1454 #endif
1455 
1456 #ifdef CONFIG_ACPI_PPTT
1457 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1458 int find_acpi_cpu_topology(unsigned int cpu, int level);
1459 int find_acpi_cpu_topology_cluster(unsigned int cpu);
1460 int find_acpi_cpu_topology_package(unsigned int cpu);
1461 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1462 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1463 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1464 {
1465 	return -EINVAL;
1466 }
find_acpi_cpu_topology(unsigned int cpu,int level)1467 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1468 {
1469 	return -EINVAL;
1470 }
find_acpi_cpu_topology_cluster(unsigned int cpu)1471 static inline int find_acpi_cpu_topology_cluster(unsigned int cpu)
1472 {
1473 	return -EINVAL;
1474 }
find_acpi_cpu_topology_package(unsigned int cpu)1475 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1476 {
1477 	return -EINVAL;
1478 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1479 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1480 {
1481 	return -EINVAL;
1482 }
1483 #endif
1484 
1485 #ifdef CONFIG_ACPI_PCC
1486 void acpi_init_pcc(void);
1487 #else
acpi_init_pcc(void)1488 static inline void acpi_init_pcc(void) { }
1489 #endif
1490 
1491 #ifdef CONFIG_ACPI
1492 extern void acpi_device_notify(struct device *dev);
1493 extern void acpi_device_notify_remove(struct device *dev);
1494 #else
acpi_device_notify(struct device * dev)1495 static inline void acpi_device_notify(struct device *dev) { }
acpi_device_notify_remove(struct device * dev)1496 static inline void acpi_device_notify_remove(struct device *dev) { }
1497 #endif
1498 
1499 #endif	/*_LINUX_ACPI_H*/
1500