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->ops = &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_COUNT
109 };
110
111 extern enum acpi_irq_model_id acpi_irq_model;
112
113 enum acpi_interrupt_id {
114 ACPI_INTERRUPT_PMI = 1,
115 ACPI_INTERRUPT_INIT,
116 ACPI_INTERRUPT_CPEI,
117 ACPI_INTERRUPT_COUNT
118 };
119
120 #define ACPI_SPACE_MEM 0
121
122 enum acpi_address_range_id {
123 ACPI_ADDRESS_RANGE_MEMORY = 1,
124 ACPI_ADDRESS_RANGE_RESERVED = 2,
125 ACPI_ADDRESS_RANGE_ACPI = 3,
126 ACPI_ADDRESS_RANGE_NVS = 4,
127 ACPI_ADDRESS_RANGE_COUNT
128 };
129
130
131 /* Table Handlers */
132 union acpi_subtable_headers {
133 struct acpi_subtable_header common;
134 struct acpi_hmat_structure hmat;
135 };
136
137 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
138
139 typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header,
140 const unsigned long end);
141
142 /* Debugger support */
143
144 struct acpi_debugger_ops {
145 int (*create_thread)(acpi_osd_exec_callback function, void *context);
146 ssize_t (*write_log)(const char *msg);
147 ssize_t (*read_cmd)(char *buffer, size_t length);
148 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
149 int (*notify_command_complete)(void);
150 };
151
152 struct acpi_debugger {
153 const struct acpi_debugger_ops *ops;
154 struct module *owner;
155 struct mutex lock;
156 };
157
158 #ifdef CONFIG_ACPI_DEBUGGER
159 int __init acpi_debugger_init(void);
160 int acpi_register_debugger(struct module *owner,
161 const struct acpi_debugger_ops *ops);
162 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
163 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
164 ssize_t acpi_debugger_write_log(const char *msg);
165 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
166 int acpi_debugger_wait_command_ready(void);
167 int acpi_debugger_notify_command_complete(void);
168 #else
acpi_debugger_init(void)169 static inline int acpi_debugger_init(void)
170 {
171 return -ENODEV;
172 }
173
acpi_register_debugger(struct module * owner,const struct acpi_debugger_ops * ops)174 static inline int acpi_register_debugger(struct module *owner,
175 const struct acpi_debugger_ops *ops)
176 {
177 return -ENODEV;
178 }
179
acpi_unregister_debugger(const struct acpi_debugger_ops * ops)180 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
181 {
182 }
183
acpi_debugger_create_thread(acpi_osd_exec_callback function,void * context)184 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
185 void *context)
186 {
187 return -ENODEV;
188 }
189
acpi_debugger_write_log(const char * msg)190 static inline int acpi_debugger_write_log(const char *msg)
191 {
192 return -ENODEV;
193 }
194
acpi_debugger_read_cmd(char * buffer,u32 buffer_length)195 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
196 {
197 return -ENODEV;
198 }
199
acpi_debugger_wait_command_ready(void)200 static inline int acpi_debugger_wait_command_ready(void)
201 {
202 return -ENODEV;
203 }
204
acpi_debugger_notify_command_complete(void)205 static inline int acpi_debugger_notify_command_complete(void)
206 {
207 return -ENODEV;
208 }
209 #endif
210
211 #define BAD_MADT_ENTRY(entry, end) ( \
212 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
213 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
214
215 struct acpi_subtable_proc {
216 int id;
217 acpi_tbl_entry_handler handler;
218 int count;
219 };
220
221 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size);
222 void __acpi_unmap_table(void __iomem *map, unsigned long size);
223 int early_acpi_boot_init(void);
224 int acpi_boot_init (void);
225 void acpi_boot_table_prepare (void);
226 void acpi_boot_table_init (void);
227 int acpi_mps_check (void);
228 int acpi_numa_init (void);
229
230 int acpi_locate_initial_tables (void);
231 void acpi_reserve_initial_tables (void);
232 void acpi_table_init_complete (void);
233 int acpi_table_init (void);
234 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
235 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
236 int entry_id,
237 acpi_tbl_entry_handler handler,
238 unsigned int max_entries);
239 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
240 struct acpi_subtable_proc *proc, int proc_num,
241 unsigned int max_entries);
242 int acpi_table_parse_madt(enum acpi_madt_type id,
243 acpi_tbl_entry_handler handler,
244 unsigned int max_entries);
245 int acpi_parse_mcfg (struct acpi_table_header *header);
246 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
247
248 /* the following numa functions are architecture-dependent */
249 void acpi_numa_slit_init (struct acpi_table_slit *slit);
250
251 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
252 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
253 #else
254 static inline void
acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity * pa)255 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
256 #endif
257
258 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
259
260 #ifdef CONFIG_ARM64
261 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
262 #else
263 static inline void
acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity * pa)264 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
265 #endif
266
267 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
268
269 #ifndef PHYS_CPUID_INVALID
270 typedef u32 phys_cpuid_t;
271 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
272 #endif
273
invalid_logical_cpuid(u32 cpuid)274 static inline bool invalid_logical_cpuid(u32 cpuid)
275 {
276 return (int)cpuid < 0;
277 }
278
invalid_phys_cpuid(phys_cpuid_t phys_id)279 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
280 {
281 return phys_id == PHYS_CPUID_INVALID;
282 }
283
284 /* Validate the processor object's proc_id */
285 bool acpi_duplicate_processor_id(int proc_id);
286
287 #ifdef CONFIG_ACPI_HOTPLUG_CPU
288 /* Arch dependent functions for cpu hotplug support */
289 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
290 int *pcpu);
291 int acpi_unmap_cpu(int cpu);
292 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
293
294 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
295 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
296 #endif
297
298 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
299 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
300 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
301 void acpi_irq_stats_init(void);
302 extern u32 acpi_irq_handled;
303 extern u32 acpi_irq_not_handled;
304 extern unsigned int acpi_sci_irq;
305 extern bool acpi_no_s5;
306 #define INVALID_ACPI_IRQ ((unsigned)-1)
acpi_sci_irq_valid(void)307 static inline bool acpi_sci_irq_valid(void)
308 {
309 return acpi_sci_irq != INVALID_ACPI_IRQ;
310 }
311
312 extern int sbf_port;
313 extern unsigned long acpi_realmode_flags;
314
315 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
316 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
317 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
318
319 void acpi_set_irq_model(enum acpi_irq_model_id model,
320 struct fwnode_handle *fwnode);
321
322 struct irq_domain *acpi_irq_create_hierarchy(unsigned int flags,
323 unsigned int size,
324 struct fwnode_handle *fwnode,
325 const struct irq_domain_ops *ops,
326 void *host_data);
327
328 #ifdef CONFIG_X86_IO_APIC
329 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
330 #else
acpi_get_override_irq(u32 gsi,int * trigger,int * polarity)331 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
332 {
333 return -1;
334 }
335 #endif
336 /*
337 * This function undoes the effect of one call to acpi_register_gsi().
338 * If this matches the last registration, any IRQ resources for gsi
339 * are freed.
340 */
341 void acpi_unregister_gsi (u32 gsi);
342
343 struct pci_dev;
344
345 int acpi_pci_irq_enable (struct pci_dev *dev);
346 void acpi_penalize_isa_irq(int irq, int active);
347 bool acpi_isa_irq_available(int irq);
348 #ifdef CONFIG_PCI
349 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
350 #else
acpi_penalize_sci_irq(int irq,int trigger,int polarity)351 static inline void acpi_penalize_sci_irq(int irq, int trigger,
352 int polarity)
353 {
354 }
355 #endif
356 void acpi_pci_irq_disable (struct pci_dev *dev);
357
358 extern int ec_read(u8 addr, u8 *val);
359 extern int ec_write(u8 addr, u8 val);
360 extern int ec_transaction(u8 command,
361 const u8 *wdata, unsigned wdata_len,
362 u8 *rdata, unsigned rdata_len);
363 extern acpi_handle ec_get_handle(void);
364
365 extern bool acpi_is_pnp_device(struct acpi_device *);
366
367 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
368
369 typedef void (*wmi_notify_handler) (u32 value, void *context);
370
371 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
372 u32 method_id,
373 const struct acpi_buffer *in,
374 struct acpi_buffer *out);
375 extern acpi_status wmi_query_block(const char *guid, u8 instance,
376 struct acpi_buffer *out);
377 extern acpi_status wmi_set_block(const char *guid, u8 instance,
378 const struct acpi_buffer *in);
379 extern acpi_status wmi_install_notify_handler(const char *guid,
380 wmi_notify_handler handler, void *data);
381 extern acpi_status wmi_remove_notify_handler(const char *guid);
382 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
383 extern bool wmi_has_guid(const char *guid);
384 extern char *wmi_get_acpi_device_uid(const char *guid);
385
386 #endif /* CONFIG_ACPI_WMI */
387
388 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
389 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
390 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
391 #define ACPI_VIDEO_BACKLIGHT 0x0008
392 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
393 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
394 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
395 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
396 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
397 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
398 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
399 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
400
401 extern char acpi_video_backlight_string[];
402 extern long acpi_is_video_device(acpi_handle handle);
403 extern int acpi_blacklisted(void);
404 extern void acpi_osi_setup(char *str);
405 extern bool acpi_osi_is_win8(void);
406
407 #ifdef CONFIG_ACPI_NUMA
408 int acpi_map_pxm_to_online_node(int pxm);
409 int acpi_map_pxm_to_node(int pxm);
410 int acpi_get_node(acpi_handle handle);
411 #else
acpi_map_pxm_to_online_node(int pxm)412 static inline int acpi_map_pxm_to_online_node(int pxm)
413 {
414 return 0;
415 }
acpi_map_pxm_to_node(int pxm)416 static inline int acpi_map_pxm_to_node(int pxm)
417 {
418 return 0;
419 }
acpi_get_node(acpi_handle handle)420 static inline int acpi_get_node(acpi_handle handle)
421 {
422 return 0;
423 }
424 #endif
425 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
426
427 extern int pnpacpi_disabled;
428
429 #define PXM_INVAL (-1)
430
431 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
432 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
433 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
434 struct resource_win *win);
435 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
436 struct resource_win *win);
437 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
438 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
439 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
440 struct resource *res);
441
442 void acpi_dev_free_resource_list(struct list_head *list);
443 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
444 int (*preproc)(struct acpi_resource *, void *),
445 void *preproc_data);
446 int acpi_dev_get_dma_resources(struct acpi_device *adev,
447 struct list_head *list);
448 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
449 unsigned long types);
450
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)451 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
452 void *arg)
453 {
454 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
455 }
456
457 struct acpi_device *acpi_resource_consumer(struct resource *res);
458
459 int acpi_check_resource_conflict(const struct resource *res);
460
461 int acpi_check_region(resource_size_t start, resource_size_t n,
462 const char *name);
463
464 acpi_status acpi_release_memory(acpi_handle handle, struct resource *res,
465 u32 level);
466
467 int acpi_resources_are_enforced(void);
468
469 #ifdef CONFIG_HIBERNATION
470 void __init acpi_no_s4_hw_signature(void);
471 #endif
472
473 #ifdef CONFIG_PM_SLEEP
474 void __init acpi_old_suspend_ordering(void);
475 void __init acpi_nvs_nosave(void);
476 void __init acpi_nvs_nosave_s3(void);
477 void __init acpi_sleep_no_blacklist(void);
478 #endif /* CONFIG_PM_SLEEP */
479
480 int acpi_register_wakeup_handler(
481 int wake_irq, bool (*wakeup)(void *context), void *context);
482 void acpi_unregister_wakeup_handler(
483 bool (*wakeup)(void *context), void *context);
484
485 struct acpi_osc_context {
486 char *uuid_str; /* UUID string */
487 int rev;
488 struct acpi_buffer cap; /* list of DWORD capabilities */
489 struct acpi_buffer ret; /* free by caller if success */
490 };
491
492 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
493
494 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
495 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
496 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
497 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
498
499 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
500 #define OSC_QUERY_ENABLE 0x00000001 /* input */
501 #define OSC_REQUEST_ERROR 0x00000002 /* return */
502 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
503 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
504 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
505
506 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
507 #define OSC_SB_PAD_SUPPORT 0x00000001
508 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
509 #define OSC_SB_PR3_SUPPORT 0x00000004
510 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
511 #define OSC_SB_APEI_SUPPORT 0x00000010
512 #define OSC_SB_CPC_SUPPORT 0x00000020
513 #define OSC_SB_CPCV2_SUPPORT 0x00000040
514 #define OSC_SB_PCLPI_SUPPORT 0x00000080
515 #define OSC_SB_OSLPI_SUPPORT 0x00000100
516 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
517
518 extern bool osc_sb_apei_support_acked;
519 extern bool osc_pc_lpi_support_confirmed;
520
521 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
522 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
523 #define OSC_PCI_ASPM_SUPPORT 0x00000002
524 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
525 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
526 #define OSC_PCI_MSI_SUPPORT 0x00000010
527 #define OSC_PCI_HPX_TYPE_3_SUPPORT 0x00000100
528 #define OSC_PCI_SUPPORT_MASKS 0x0000011f
529
530 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
531 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
532 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
533 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
534 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
535 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
536 #define OSC_PCI_EXPRESS_LTR_CONTROL 0x00000020
537 #define OSC_PCI_CONTROL_MASKS 0x0000003f
538
539 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
540 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
541 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
542 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
543 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
544 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
545 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
546 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
547 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
548 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
549
550 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
551 u32 *mask, u32 req);
552
553 /* Enable _OST when all relevant hotplug operations are enabled */
554 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
555 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
556 defined(CONFIG_ACPI_CONTAINER)
557 #define ACPI_HOTPLUG_OST
558 #endif
559
560 /* _OST Source Event Code (OSPM Action) */
561 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
562 #define ACPI_OST_EC_OSPM_EJECT 0x103
563 #define ACPI_OST_EC_OSPM_INSERTION 0x200
564
565 /* _OST General Processing Status Code */
566 #define ACPI_OST_SC_SUCCESS 0x0
567 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
568 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
569
570 /* _OST OS Shutdown Processing (0x100) Status Code */
571 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
572 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
573 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
574 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
575
576 /* _OST Ejection Request (0x3, 0x103) Status Code */
577 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
578 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
579 #define ACPI_OST_SC_DEVICE_BUSY 0x82
580 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
581 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
582
583 /* _OST Insertion Request (0x200) Status Code */
584 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
585 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
586 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
587
588 enum acpi_predicate {
589 all_versions,
590 less_than_or_equal,
591 equal,
592 greater_than_or_equal,
593 };
594
595 /* Table must be terminted by a NULL entry */
596 struct acpi_platform_list {
597 char oem_id[ACPI_OEM_ID_SIZE+1];
598 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1];
599 u32 oem_revision;
600 char *table;
601 enum acpi_predicate pred;
602 char *reason;
603 u32 data;
604 };
605 int acpi_match_platform_list(const struct acpi_platform_list *plat);
606
607 extern void acpi_early_init(void);
608 extern void acpi_subsystem_init(void);
609 extern void arch_post_acpi_subsys_init(void);
610
611 extern int acpi_nvs_register(__u64 start, __u64 size);
612
613 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
614 void *data);
615
616 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
617 const struct device *dev);
618
619 const void *acpi_device_get_match_data(const struct device *dev);
620 extern bool acpi_driver_match_device(struct device *dev,
621 const struct device_driver *drv);
622 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
623 int acpi_device_modalias(struct device *, char *, int);
624 void acpi_walk_dep_device_list(acpi_handle handle);
625
626 struct platform_device *acpi_create_platform_device(struct acpi_device *,
627 struct property_entry *);
628 #define ACPI_PTR(_ptr) (_ptr)
629
acpi_device_set_enumerated(struct acpi_device * adev)630 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
631 {
632 adev->flags.visited = true;
633 }
634
acpi_device_clear_enumerated(struct acpi_device * adev)635 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
636 {
637 adev->flags.visited = false;
638 }
639
640 enum acpi_reconfig_event {
641 ACPI_RECONFIG_DEVICE_ADD = 0,
642 ACPI_RECONFIG_DEVICE_REMOVE,
643 };
644
645 int acpi_reconfig_notifier_register(struct notifier_block *nb);
646 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
647
648 #ifdef CONFIG_ACPI_GTDT
649 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
650 int acpi_gtdt_map_ppi(int type);
651 bool acpi_gtdt_c3stop(int type);
652 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
653 #endif
654
655 #ifndef ACPI_HAVE_ARCH_SET_ROOT_POINTER
acpi_arch_set_root_pointer(u64 addr)656 static inline void acpi_arch_set_root_pointer(u64 addr)
657 {
658 }
659 #endif
660
661 #ifndef ACPI_HAVE_ARCH_GET_ROOT_POINTER
acpi_arch_get_root_pointer(void)662 static inline u64 acpi_arch_get_root_pointer(void)
663 {
664 return 0;
665 }
666 #endif
667
668 #else /* !CONFIG_ACPI */
669
670 #define acpi_disabled 1
671
672 #define ACPI_COMPANION(dev) (NULL)
673 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
674 #define ACPI_HANDLE(dev) (NULL)
675 #define ACPI_HANDLE_FWNODE(fwnode) (NULL)
676 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
677
678 struct fwnode_handle;
679
acpi_dev_found(const char * hid)680 static inline bool acpi_dev_found(const char *hid)
681 {
682 return false;
683 }
684
acpi_dev_present(const char * hid,const char * uid,s64 hrv)685 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
686 {
687 return false;
688 }
689
690 static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char * hid,const char * uid,s64 hrv)691 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
692 {
693 return NULL;
694 }
695
acpi_dev_put(struct acpi_device * adev)696 static inline void acpi_dev_put(struct acpi_device *adev) {}
697
is_acpi_node(struct fwnode_handle * fwnode)698 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
699 {
700 return false;
701 }
702
is_acpi_device_node(struct fwnode_handle * fwnode)703 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
704 {
705 return false;
706 }
707
to_acpi_device_node(struct fwnode_handle * fwnode)708 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
709 {
710 return NULL;
711 }
712
is_acpi_data_node(struct fwnode_handle * fwnode)713 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
714 {
715 return false;
716 }
717
to_acpi_data_node(struct fwnode_handle * fwnode)718 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
719 {
720 return NULL;
721 }
722
acpi_data_node_match(struct fwnode_handle * fwnode,const char * name)723 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
724 const char *name)
725 {
726 return false;
727 }
728
acpi_fwnode_handle(struct acpi_device * adev)729 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
730 {
731 return NULL;
732 }
733
has_acpi_companion(struct device * dev)734 static inline bool has_acpi_companion(struct device *dev)
735 {
736 return false;
737 }
738
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)739 static inline void acpi_preset_companion(struct device *dev,
740 struct acpi_device *parent, u64 addr)
741 {
742 }
743
acpi_dev_name(struct acpi_device * adev)744 static inline const char *acpi_dev_name(struct acpi_device *adev)
745 {
746 return NULL;
747 }
748
acpi_get_first_physical_node(struct acpi_device * adev)749 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
750 {
751 return NULL;
752 }
753
acpi_early_init(void)754 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)755 static inline void acpi_subsystem_init(void) { }
756
early_acpi_boot_init(void)757 static inline int early_acpi_boot_init(void)
758 {
759 return 0;
760 }
acpi_boot_init(void)761 static inline int acpi_boot_init(void)
762 {
763 return 0;
764 }
765
acpi_boot_table_prepare(void)766 static inline void acpi_boot_table_prepare(void)
767 {
768 }
769
acpi_boot_table_init(void)770 static inline void acpi_boot_table_init(void)
771 {
772 }
773
acpi_mps_check(void)774 static inline int acpi_mps_check(void)
775 {
776 return 0;
777 }
778
acpi_check_resource_conflict(struct resource * res)779 static inline int acpi_check_resource_conflict(struct resource *res)
780 {
781 return 0;
782 }
783
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)784 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
785 const char *name)
786 {
787 return 0;
788 }
789
790 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))791 static inline int acpi_table_parse(char *id,
792 int (*handler)(struct acpi_table_header *))
793 {
794 return -ENODEV;
795 }
796
acpi_nvs_register(__u64 start,__u64 size)797 static inline int acpi_nvs_register(__u64 start, __u64 size)
798 {
799 return 0;
800 }
801
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)802 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
803 void *data)
804 {
805 return 0;
806 }
807
808 struct acpi_device_id;
809
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)810 static inline const struct acpi_device_id *acpi_match_device(
811 const struct acpi_device_id *ids, const struct device *dev)
812 {
813 return NULL;
814 }
815
acpi_device_get_match_data(const struct device * dev)816 static inline const void *acpi_device_get_match_data(const struct device *dev)
817 {
818 return NULL;
819 }
820
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)821 static inline bool acpi_driver_match_device(struct device *dev,
822 const struct device_driver *drv)
823 {
824 return false;
825 }
826
acpi_evaluate_dsm(acpi_handle handle,const guid_t * guid,int rev,int func,union acpi_object * argv4)827 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
828 const guid_t *guid,
829 int rev, int func,
830 union acpi_object *argv4)
831 {
832 return NULL;
833 }
834
acpi_device_uevent_modalias(struct device * dev,struct kobj_uevent_env * env)835 static inline int acpi_device_uevent_modalias(struct device *dev,
836 struct kobj_uevent_env *env)
837 {
838 return -ENODEV;
839 }
840
acpi_device_modalias(struct device * dev,char * buf,int size)841 static inline int acpi_device_modalias(struct device *dev,
842 char *buf, int size)
843 {
844 return -ENODEV;
845 }
846
847 static inline struct platform_device *
acpi_create_platform_device(struct acpi_device * adev,struct property_entry * properties)848 acpi_create_platform_device(struct acpi_device *adev,
849 struct property_entry *properties)
850 {
851 return NULL;
852 }
853
acpi_dma_supported(struct acpi_device * adev)854 static inline bool acpi_dma_supported(struct acpi_device *adev)
855 {
856 return false;
857 }
858
acpi_get_dma_attr(struct acpi_device * adev)859 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
860 {
861 return DEV_DMA_NOT_SUPPORTED;
862 }
863
acpi_dma_get_range(struct device * dev,u64 * dma_addr,u64 * offset,u64 * size)864 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr,
865 u64 *offset, u64 *size)
866 {
867 return -ENODEV;
868 }
869
acpi_dma_configure(struct device * dev,enum dev_dma_attr attr)870 static inline int acpi_dma_configure(struct device *dev,
871 enum dev_dma_attr attr)
872 {
873 return 0;
874 }
875
876 #define ACPI_PTR(_ptr) (NULL)
877
acpi_device_set_enumerated(struct acpi_device * adev)878 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
879 {
880 }
881
acpi_device_clear_enumerated(struct acpi_device * adev)882 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
883 {
884 }
885
acpi_reconfig_notifier_register(struct notifier_block * nb)886 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
887 {
888 return -EINVAL;
889 }
890
acpi_reconfig_notifier_unregister(struct notifier_block * nb)891 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
892 {
893 return -EINVAL;
894 }
895
acpi_resource_consumer(struct resource * res)896 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
897 {
898 return NULL;
899 }
900
901 #endif /* !CONFIG_ACPI */
902
903 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
904 int acpi_ioapic_add(acpi_handle root);
905 #else
acpi_ioapic_add(acpi_handle root)906 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
907 #endif
908
909 #ifdef CONFIG_ACPI
910 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
911 u32 pm1a_ctrl, u32 pm1b_ctrl));
912
913 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
914 u32 pm1a_control, u32 pm1b_control);
915
916 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
917 u32 val_a, u32 val_b));
918
919 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
920 u32 val_a, u32 val_b);
921
922 #ifdef CONFIG_X86
923 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
924 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)925 static inline void arch_reserve_mem_area(acpi_physical_address addr,
926 size_t size)
927 {
928 }
929 #endif /* CONFIG_X86 */
930 #else
931 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
932 #endif
933
934 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
935 int acpi_dev_suspend(struct device *dev, bool wakeup);
936 int acpi_dev_resume(struct device *dev);
937 int acpi_subsys_runtime_suspend(struct device *dev);
938 int acpi_subsys_runtime_resume(struct device *dev);
939 int acpi_dev_pm_attach(struct device *dev, bool power_on);
940 #else
acpi_dev_runtime_suspend(struct device * dev)941 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
acpi_dev_runtime_resume(struct device * dev)942 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
acpi_subsys_runtime_suspend(struct device * dev)943 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)944 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_attach(struct device * dev,bool power_on)945 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
946 {
947 return 0;
948 }
949 #endif
950
951 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
952 int acpi_subsys_prepare(struct device *dev);
953 void acpi_subsys_complete(struct device *dev);
954 int acpi_subsys_suspend_late(struct device *dev);
955 int acpi_subsys_suspend_noirq(struct device *dev);
956 int acpi_subsys_suspend(struct device *dev);
957 int acpi_subsys_freeze(struct device *dev);
958 int acpi_subsys_poweroff(struct device *dev);
959 void acpi_ec_mark_gpe_for_wake(void);
960 void acpi_ec_set_gpe_wake_mask(u8 action);
961 #else
acpi_subsys_prepare(struct device * dev)962 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)963 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)964 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_suspend_noirq(struct device * dev)965 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)966 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)967 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
acpi_subsys_poweroff(struct device * dev)968 static inline int acpi_subsys_poweroff(struct device *dev) { return 0; }
acpi_ec_mark_gpe_for_wake(void)969 static inline void acpi_ec_mark_gpe_for_wake(void) {}
acpi_ec_set_gpe_wake_mask(u8 action)970 static inline void acpi_ec_set_gpe_wake_mask(u8 action) {}
971 #endif
972
973 #ifdef CONFIG_ACPI
974 __printf(3, 4)
975 void acpi_handle_printk(const char *level, acpi_handle handle,
976 const char *fmt, ...);
977 #else /* !CONFIG_ACPI */
978 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)979 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
980 #endif /* !CONFIG_ACPI */
981
982 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
983 __printf(3, 4)
984 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
985 #endif
986
987 /*
988 * acpi_handle_<level>: Print message with ACPI prefix and object path
989 *
990 * These interfaces acquire the global namespace mutex to obtain an object
991 * path. In interrupt context, it shows the object path as <n/a>.
992 */
993 #define acpi_handle_emerg(handle, fmt, ...) \
994 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
995 #define acpi_handle_alert(handle, fmt, ...) \
996 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
997 #define acpi_handle_crit(handle, fmt, ...) \
998 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
999 #define acpi_handle_err(handle, fmt, ...) \
1000 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
1001 #define acpi_handle_warn(handle, fmt, ...) \
1002 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
1003 #define acpi_handle_notice(handle, fmt, ...) \
1004 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
1005 #define acpi_handle_info(handle, fmt, ...) \
1006 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
1007
1008 #if defined(DEBUG)
1009 #define acpi_handle_debug(handle, fmt, ...) \
1010 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
1011 #else
1012 #if defined(CONFIG_DYNAMIC_DEBUG)
1013 #define acpi_handle_debug(handle, fmt, ...) \
1014 _dynamic_func_call(fmt, __acpi_handle_debug, \
1015 handle, pr_fmt(fmt), ##__VA_ARGS__)
1016 #else
1017 #define acpi_handle_debug(handle, fmt, ...) \
1018 ({ \
1019 if (0) \
1020 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
1021 0; \
1022 })
1023 #endif
1024 #endif
1025
1026 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
1027 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1028 struct acpi_resource_gpio **agpio);
1029 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
1030 #else
acpi_gpio_get_irq_resource(struct acpi_resource * ares,struct acpi_resource_gpio ** agpio)1031 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
1032 struct acpi_resource_gpio **agpio)
1033 {
1034 return false;
1035 }
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)1036 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
1037 {
1038 return -ENXIO;
1039 }
1040 #endif
1041
1042 /* Device properties */
1043
1044 #ifdef CONFIG_ACPI
1045 int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
1046 acpi_object_type type, const union acpi_object **obj);
1047 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1048 const char *name, size_t index, size_t num_args,
1049 struct fwnode_reference_args *args);
1050
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1051 static inline int acpi_node_get_property_reference(
1052 const struct fwnode_handle *fwnode,
1053 const char *name, size_t index,
1054 struct fwnode_reference_args *args)
1055 {
1056 return __acpi_node_get_property_reference(fwnode, name, index,
1057 NR_FWNODE_REFERENCE_ARGS, args);
1058 }
1059
acpi_dev_has_props(const struct acpi_device * adev)1060 static inline bool acpi_dev_has_props(const struct acpi_device *adev)
1061 {
1062 return !list_empty(&adev->data.properties);
1063 }
1064
1065 struct acpi_device_properties *
1066 acpi_data_add_props(struct acpi_device_data *data, const guid_t *guid,
1067 const union acpi_object *properties);
1068
1069 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname,
1070 void **valptr);
1071 int acpi_dev_prop_read_single(struct acpi_device *adev,
1072 const char *propname, enum dev_prop_type proptype,
1073 void *val);
1074 int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1075 const char *propname, enum dev_prop_type proptype,
1076 void *val, size_t nval);
1077 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
1078 enum dev_prop_type proptype, void *val, size_t nval);
1079
1080 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1081 struct fwnode_handle *child);
1082 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode);
1083
1084 struct acpi_probe_entry;
1085 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1086 struct acpi_probe_entry *);
1087
1088 #define ACPI_TABLE_ID_LEN 5
1089
1090 /**
1091 * struct acpi_probe_entry - boot-time probing entry
1092 * @id: ACPI table name
1093 * @type: Optional subtable type to match
1094 * (if @id contains subtables)
1095 * @subtable_valid: Optional callback to check the validity of
1096 * the subtable
1097 * @probe_table: Callback to the driver being probed when table
1098 * match is successful
1099 * @probe_subtbl: Callback to the driver being probed when table and
1100 * subtable match (and optional callback is successful)
1101 * @driver_data: Sideband data provided back to the driver
1102 */
1103 struct acpi_probe_entry {
1104 __u8 id[ACPI_TABLE_ID_LEN];
1105 __u8 type;
1106 acpi_probe_entry_validate_subtbl subtable_valid;
1107 union {
1108 acpi_tbl_table_handler probe_table;
1109 acpi_tbl_entry_handler probe_subtbl;
1110 };
1111 kernel_ulong_t driver_data;
1112 };
1113
1114 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1115 static const struct acpi_probe_entry __acpi_probe_##name \
1116 __used __section(__##table##_acpi_probe_table) \
1117 = { \
1118 .id = table_id, \
1119 .type = subtable, \
1120 .subtable_valid = valid, \
1121 .probe_table = (acpi_tbl_table_handler)fn, \
1122 .driver_data = data, \
1123 }
1124
1125 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1126 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1127
1128 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1129
1130 #define acpi_probe_device_table(t) \
1131 ({ \
1132 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1133 ACPI_PROBE_TABLE_END(t); \
1134 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1135 (&ACPI_PROBE_TABLE_END(t) - \
1136 &ACPI_PROBE_TABLE(t))); \
1137 })
1138 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)1139 static inline int acpi_dev_get_property(struct acpi_device *adev,
1140 const char *name, acpi_object_type type,
1141 const union acpi_object **obj)
1142 {
1143 return -ENXIO;
1144 }
1145
1146 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)1147 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1148 const char *name, size_t index, size_t num_args,
1149 struct fwnode_reference_args *args)
1150 {
1151 return -ENXIO;
1152 }
1153
1154 static inline int
acpi_node_get_property_reference(const struct fwnode_handle * fwnode,const char * name,size_t index,struct fwnode_reference_args * args)1155 acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
1156 const char *name, size_t index,
1157 struct fwnode_reference_args *args)
1158 {
1159 return -ENXIO;
1160 }
1161
acpi_node_prop_get(const struct fwnode_handle * fwnode,const char * propname,void ** valptr)1162 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode,
1163 const char *propname,
1164 void **valptr)
1165 {
1166 return -ENXIO;
1167 }
1168
acpi_dev_prop_get(const struct acpi_device * adev,const char * propname,void ** valptr)1169 static inline int acpi_dev_prop_get(const struct acpi_device *adev,
1170 const char *propname,
1171 void **valptr)
1172 {
1173 return -ENXIO;
1174 }
1175
acpi_dev_prop_read_single(const struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val)1176 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev,
1177 const char *propname,
1178 enum dev_prop_type proptype,
1179 void *val)
1180 {
1181 return -ENXIO;
1182 }
1183
acpi_node_prop_read(const struct fwnode_handle * fwnode,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)1184 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode,
1185 const char *propname,
1186 enum dev_prop_type proptype,
1187 void *val, size_t nval)
1188 {
1189 return -ENXIO;
1190 }
1191
acpi_dev_prop_read(const struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)1192 static inline int acpi_dev_prop_read(const struct acpi_device *adev,
1193 const char *propname,
1194 enum dev_prop_type proptype,
1195 void *val, size_t nval)
1196 {
1197 return -ENXIO;
1198 }
1199
1200 static inline struct fwnode_handle *
acpi_get_next_subnode(const struct fwnode_handle * fwnode,struct fwnode_handle * child)1201 acpi_get_next_subnode(const struct fwnode_handle *fwnode,
1202 struct fwnode_handle *child)
1203 {
1204 return NULL;
1205 }
1206
1207 static inline struct fwnode_handle *
acpi_node_get_parent(const struct fwnode_handle * fwnode)1208 acpi_node_get_parent(const struct fwnode_handle *fwnode)
1209 {
1210 return NULL;
1211 }
1212
1213 static inline struct fwnode_handle *
acpi_graph_get_next_endpoint(const struct fwnode_handle * fwnode,struct fwnode_handle * prev)1214 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
1215 struct fwnode_handle *prev)
1216 {
1217 return ERR_PTR(-ENXIO);
1218 }
1219
1220 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)1221 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode,
1222 struct fwnode_handle **remote,
1223 struct fwnode_handle **port,
1224 struct fwnode_handle **endpoint)
1225 {
1226 return -ENXIO;
1227 }
1228
1229 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1230 static const void * __acpi_table_##name[] \
1231 __attribute__((unused)) \
1232 = { (void *) table_id, \
1233 (void *) subtable, \
1234 (void *) valid, \
1235 (void *) fn, \
1236 (void *) data }
1237
1238 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1239 #endif
1240
1241 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1242 void acpi_table_upgrade(void);
1243 #else
acpi_table_upgrade(void)1244 static inline void acpi_table_upgrade(void) { }
1245 #endif
1246
1247 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1248 extern bool acpi_has_watchdog(void);
1249 #else
acpi_has_watchdog(void)1250 static inline bool acpi_has_watchdog(void) { return false; }
1251 #endif
1252
1253 #ifdef CONFIG_ACPI_SPCR_TABLE
1254 extern bool qdf2400_e44_present;
1255 int acpi_parse_spcr(bool enable_earlycon, bool enable_console);
1256 #else
acpi_parse_spcr(bool enable_earlycon,bool enable_console)1257 static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console)
1258 {
1259 return 0;
1260 }
1261 #endif
1262
1263 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1264 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1265 #else
1266 static inline
acpi_irq_get(acpi_handle handle,unsigned int index,struct resource * res)1267 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1268 {
1269 return -EINVAL;
1270 }
1271 #endif
1272
1273 #ifdef CONFIG_ACPI_LPIT
1274 int lpit_read_residency_count_address(u64 *address);
1275 #else
lpit_read_residency_count_address(u64 * address)1276 static inline int lpit_read_residency_count_address(u64 *address)
1277 {
1278 return -EINVAL;
1279 }
1280 #endif
1281
1282 #ifdef CONFIG_ACPI_PPTT
1283 int acpi_pptt_cpu_is_thread(unsigned int cpu);
1284 int find_acpi_cpu_topology(unsigned int cpu, int level);
1285 int find_acpi_cpu_topology_package(unsigned int cpu);
1286 int find_acpi_cpu_topology_hetero_id(unsigned int cpu);
1287 int find_acpi_cpu_cache_topology(unsigned int cpu, int level);
1288 #else
acpi_pptt_cpu_is_thread(unsigned int cpu)1289 static inline int acpi_pptt_cpu_is_thread(unsigned int cpu)
1290 {
1291 return -EINVAL;
1292 }
find_acpi_cpu_topology(unsigned int cpu,int level)1293 static inline int find_acpi_cpu_topology(unsigned int cpu, int level)
1294 {
1295 return -EINVAL;
1296 }
find_acpi_cpu_topology_package(unsigned int cpu)1297 static inline int find_acpi_cpu_topology_package(unsigned int cpu)
1298 {
1299 return -EINVAL;
1300 }
find_acpi_cpu_topology_hetero_id(unsigned int cpu)1301 static inline int find_acpi_cpu_topology_hetero_id(unsigned int cpu)
1302 {
1303 return -EINVAL;
1304 }
find_acpi_cpu_cache_topology(unsigned int cpu,int level)1305 static inline int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
1306 {
1307 return -EINVAL;
1308 }
1309 #endif
1310
1311 #ifdef CONFIG_ACPI
1312 extern int acpi_platform_notify(struct device *dev, enum kobject_action action);
1313 #else
1314 static inline int
acpi_platform_notify(struct device * dev,enum kobject_action action)1315 acpi_platform_notify(struct device *dev, enum kobject_action action)
1316 {
1317 return 0;
1318 }
1319 #endif
1320
1321 #endif /*_LINUX_ACPI_H*/
1322